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Revision as of 18:32, 20 October 2017


labor:cell_culture - iGEM 2017

Lab Notebook Cell Culture

PEI transfection of HEK cells

  1. Split the cells 1:5 into 10 cm plate (on 21.04.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5µg from each plasmid)
  4. Add 15 µl PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture

13.05.17

PEI transfection of HEK, Jurkat, HPB-ALL and HUT78 cells

  1. Split cells 1:5 to a 6-well plate: 100 µl/well (on 12.05.17)
  2. For each sample: 3 µg plasmid DNA + 200 µl serum free DMEM
  3. Establish Mastermix
  4. Add 9 µg PEI to each mix while vortexing (PEI:DNA=3:1)
  5. 15 min incubation
  6. Add the Mix to the cells: 275.25 µl GFP-Mix or 215.5 µl to corresponding samples
  7. After 48h: Fluorescence Microscopy
Plasmid numbercomponentconcentration[ng/µL]volume[µL] for 12 µg
pIG17_008CMV_mCherry-delta-PstI_pA471.525
pIG17_009CMV_EGFP_pA368.430

23.05.17

PEI transfection of HEK, Jurkat, HPB-ALL and HUT78 cells

Plasmid numbercomponent
pIG17_008CMV_mCherry-delta-PstI_pA
pIG17_009CMV_EGFP_pA
  1. Split cells 1:5 to a 6-well plate: 330 µl (from 10 cm plate)/well (22.05.17)
  2. For each sample: 3 µg plasmid DNA + 200 µl serum free DMEM
  3. Establish Mastermix
  4. Add PEI to each mix while vortexing (PEI:DNA=3:1)
  5. 15 min incubation
  6. Add the Mix to the cells
  7. After 48h: Fluorescence Microscopy & Flow Cytometry

Lipotransfection of Jurkat, HPB-ALL and HUT78 cells

Plasmid numbercomponent
pIG17_009CMV_EGFP_pA
  1. pGFP: 2.5 µg/well
  2. Mix I: 150 µl serum free DMEM and 6 µl LTX reagent
  3. Mix II: 700 µl SERUM FREE DMEM + 2.5 µg pGFP + 14 µl PLUS reagent
  4. Mix 150 µl Mix I with 150 µl Mix II
  5. 5 min incubation at RT
  6. Add 300 µl to cells

30.05.17

BioRad electroporation

Cell lines: HPB-ALL, HUT78 and Jurkat Plasmid: pIG17_009 (GFP plasmid)

  1. Count the cells
  2. Transfer 1 mio. cells into falcons and centrifuge with 100g for 3 min
  3. Resuspend the cell pellet with 100 µl P3 Buffer
  4. Add 3 µg pIG17_009
  5. Transfer the mixture into cuvette
  6. BioRad setting: 250 V, 960 µF, 35 sec.
  7. Add 500 µl RPMI medium to the cells immediately after electroporation
  8. Plate the cells into 12-well plate with 2 ml Medium
  9. Over night culturing
  10. Wash the cuvettes for reusing

preparation for lentiviral transduction

Plate 4 mio. Hek cells in 10 cm plate. (Will be around 7-8 mio cell the next day)
(optional: 5-6 mio. Hek cells in 15 cm plate)

06.06.17

Production of Lentivirus

Transfection of HEK cells for virus production.

Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentconcentration[ng/µL]volume [µL]
pIG17_082Transfer plasmid with GFP p52625325.4
pIG17_003Envelope plasmid pMD2G10530.7
pIG17_004Packaging Plasmid pCMV∆R8.7415021.5
  • Packaging Mastermix
Component1x [µL]2.1x [µL]
pIG17_00330.6345.03
pIG17_00421.4464.33
150mM NaCl441.49927.12
total493.561036.476
  • PEI Mastermix
Component1x [µL]2.1x [µL]
23.2mM (1 µg/µl)PEI24.9452.41
150mM NaCl475.04997.59
total499.981050

07.06.17

Amaxa electroporation

Cell lines: HUT78 and Jurkat Plasmid: pIG17_008 (mCherry plasmid)

  1. Count the cells
  2. Transfer 1 mio. cells into falcons and centrifuge with 100g for 3 min
  3. Resuspend the cell pellet with 100 µl P3 Buffer
  4. Add 3 µg pIG17_008
  5. Transfer the mixture into cuvette
  6. Amaxa Programm: X-005
  7. Add 500 µl RPMI medium to the cells immediately after electroporation
  8. Plate the cells into 12-well plate with 2 ml Medium
  9. Over night culturing
  10. Wash the cuvettes for reusing

Production of Lentivirus

  • Collect the medium (containing virus supernatant) and add new medium after 24h

BioRad electroporation

Cell lines: HUT78 and Jurkat Plasmid: pIG17_009 (GFP plasmid)

  1. Count the cells
  2. Transfer 1 mio. cells into falcons and centrifuge with 100g for 3 min
  3. Resuspend the cell pellet with 100 µl P3 Buffer
  4. Add 3 µg pIG17_009
  5. Transfer the mixture into cuvette
  6. BioRad setting: 250 V, 960 µF, 35 sec.
  7. Add 500 µl RPMI medium to the cells immediately after electroporation
  8. Plate the cells into 12-well plate with 2 ml Medium
  9. Over night culturing
  10. Wash the cuvettes for reusing

08.06.17

Production of Lentivirus

  • Collect the medium (containing virus supernatant) and add new medium after 48h
  • Mix with medium collected after 24h

Flow Cytometry

  • negative controls: Hut78 and Jurkat cells.
  • positive control: GFP_Jurkat(p526)
  • Amaxa Samples: Hut78 (mCherry and GFP) and Jurkat (mCherry)
  • BioRad Samples: Hut78 (GFP) and Jurkat (GFP)
  1. Count the cells
  2. resuspend cell pellet (about 1 mio.) with FACS Buffer (PBS with 1%FCS)

09.06.17

Lentiviral transduction

  1. Plate about 200000 cells for each wells.
  2. Incubate the plates over weekend in incubator.
Jurkat sampleMedium [ml]Virus [ml]
111
202
Hut78 sampleMedium [ml]Virus [ml]
120
21.50.5
311
402
HEK sampleMedium [ml]Virus [ml]
120
21.50.5
311
402

10.06.17

BioRad electroporation

  • Cell lines: Hut78
  • Plasmid: pIG17_008 (mCherry plasmid)
ComponentAmount
Hut cells3 mio. cells
pIG17_0085 µg
SettingCapacitance[µF]VoltageCuvette size[cm]Time Constance [msec]
Setting 12501500.24.0
Setting 25001200.210.1

12.06.17

Lentiviral transduction

  1. After 72h → Change the medium of the plates (for suspension cells: first centrifuge and then resuspend cell pellet with new medium)
  2. Incubation over night for FACS

Flow Cytometry for BioRad electroporation on June 10th

no positive population

13.06.17

Flow Cytometry for lentiviral infected cells

with ration of 1:1 (Medium vs. Virus medium) cells were most frequently infected and viable.

BioRad Electroporation

  • Cell lines: Jurkat & Hut78
  • Plasmid: pIG17_009
  • Cell count: 1 mio. (Jurkat) 4 mio. (Hut78)
  • Settings:
Cell typeSettingCapacitance[µF]VoltageresistenceTime Constance [msec]
JurkatSetting 130025035
JurkatSetting 23502001000Ω35
Hut78Setting 125015050
Hut78Setting 250012050

14.06.17

Amaxa electroporation

  • Cell lines: Jurkat & Hut78
  • Plasmid: pIG17_009
  • Cell count: 1 mio.
  • Program: X-005
  • Flow cytometry after 24h.

Flow Cytometry for BioRad electroporated JK cells

No positive cell population.

15.06.17

Flow Cytometry for BioRad electroporated Hut78 cells and Amaxa electroporated T cells

no positive cell population.

16.06.17

Mycoplasma test(lentiviral transduced Jurkat and Hut78)

  • Jurkat(p526): mycoplasma positive
  • Hut78(p526):mycoplasma positive
  • HEK(p526): mycoplasma negative

No cell sorting, stock cultures should be sent for test.

17.06.17

BioRad Electroporation with JK cells

  • Cell lines: Jurkat
  • Plasmid: pIG17_009
  • Cell count: 2 mio./ approach
  • 4 approaches:
ApproachCapacitance[µF]VoltageCuvette size[cm]Time Constance [msec]
1:negative control9602500.235
2:condition 19602500.235
3:condition 29602500.235
4:condition 39602500.240

PEI transfection with HEK cells

4 approaches:

  1. 1 transfection with pIG17_009
  2. 2 transfections with pIG17_013
  3. 1 untransfected as control
  1. Split cells 1:5 to a 6-well plate: 100 µl/well (on 16.06.17)
  2. For each sample: 3 µg plasmid DNA + 200 µl serum free DMEM
  3. Establish Mastermix
  4. Add 9 µg PEI to each mix while vortexing (PEI:DNA=3:1)
  5. 15 min incubation
  6. Add the Mix to the cells
  7. After 48h: Fluorescence Microscopy & Flow cytometry
Plasmid numbercomponent
pIG17_013pHRE_Ptal_EGFP_pA

19.06.17

Hypoxia test (CoCl2)

  • Cell: via PEI transfected HEK cells.
  • CoCl2 stock: 1M
  • End concentration of CoCl2: 100µM
  • Cell observation under fluorescence microscopy after 2h:

-By adding CoCl2, the HRE-GFP transfected cells showed less fluorescence signal than without CoCl2…

  • Flow cytometry: no expected signal

BioRad Electroporation

  • Cell lines: Jurkat
  • Plasmid: pIG17_009
  • Cell count: 2 mio./ approach
  • Setting: 96 well plates, well set 1(ABCD1)
  • 4 approaches:
ApproachCapacitance[µF]VoltageCuvette size[cm]Time Constance [msec]
1:negative control9602500.235
2:condition19602500.235
3:condition29602500.230
4:condition39602500.240

20.06.17

BioRad electroporation

  • Cell lines: Jurkat
  • Plasmid: pIG17_009
  • Cell count: 2 mio./ approach
  • Setting: 96 well plates, well set 1(ABCD1), Expotential
  • 4 approaches:
ApproachCapacitance[µF]VoltageCuvette size[cm]Resistance
1:negative control9502500.21000Ω
2:condition13502500.2
3:condition23003000.21000Ω
4:condition33002500.21000Ω

21.06.17

Mycoplasma-Test (Stock cultures)

  • HEK293T: mycoplasma negative
  • Jurkat: mycoplasma negative
  • Hut78: mycoplasma positive → abort culturing of Hut78!

Flow Cytometry (BioRad on Jun.19th)

  • Not successful

24.06.17

PEI transfection (pIG17_013) for hypoxia test

  • In total: 3*6 wells
  • Transfection with pIG17_009 as positive control: 1 well/plate
  • Transfection with pIG17_013: 4 well/plate
  1. Split the cells 1:5 into 10 cm plate (on 23.06.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (3µg from each plasmid)
  4. Add 15 µl PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 200µl mix to wells

25.06.17

Hypoxia test (CoCl2)

  • Cell: 1 plate of via PEI transfected HEK cells. (from 24.06)
  • CoCl2 stock: 1M
  • End concentration of CoCl2: 100µM
WellEnd concentration of CoCl2[µM]Volume of Stock CoCl2[µl]
1: untransfected100200
2:pIG17_009 transfected--
3:pIG17_013 transfected--
4:pIG17_013 transfected50100
5:pIG17_013 transfected100200
6:pIG17_013 transfected200400

* Cell observation under fluorescence microscopy every hour after CoCl2 treatment

  • Flow cytometry after 8 hours

BioRad Electroporation

  • Cell lines: Jurkat
  • Plasmid: pIG17_009
  • Cell count: 2 mio./ approach
  • Setting: 12 well plates, well set 1
  • 3 approaches:
ApproachCapacitance[µF]VoltageResistanceTime Constance [msec]
1:3 µg plasmid96025020
2:6 µg plasmid96025020
3:9 µg plasmid96025020
  • Flow cytometry after 24h.

26.06.17

Hypoxia test (CoCl2)

1.Plate

Duration of TreatmentWellEnd concentration of CoCl2[µM]Volume of Stock CoCl2[µl]
6h1: untransfected100200
6h2:pIG17_009 transfected--
6h3:pIG17_013 transfected--
6h4:pIG17_013 transfected50100
6h5:pIG17_013 transfected100200
6h6:pIG17_013 transfected200400

2.Plate

Duration of TreatmentWellEnd concentration of CoCl2[µM]Volume of Stock CoCl2[µl]
24h1: untransfected100200
24h2:pIG17_009 transfected--
24h3:pIG17_013 transfected--
24h4:pIG17_013 transfected50100
24h5:pIG17_013 transfected100200
24h6:pIG17_013 transfected200400

Flow Cytometry (Hypoxia test & BioRad)

Hypoxia test

No induction of GFP expression under hypoxia condition Problems:

  • Cells stayed attached to the ground of plates even after treating with trypsin
  • Cells clumps instead of single cell were detected

BioRad Electroporation

By increasing the amount of plasmid DNA, some cells were potentially transfected!!!

27.06.17

BioRad Electroporation

9µg for each approach

  • Setting: 12 well plate, 1 well set, 1 pulse

GFP Plasmid: pIG17_009

ApproachCapacitance[µF]VoltageResistanceTime Constance [msec]
195025020
29502501000Ω20
39502501500Ω20

Knock out

ApproachPlasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1203 (Cas9) + 104 (gRNA)95025020
2203 (Cas9)+ scramble95025020
3sgRNA3 (gRNA_GFP)95025020
4sgRNA3 (gRNA_GFP)95025020

28.06.17

Flow Cytometry: electroporation on June 27th

29.06.17

Production of Lentivirus

Transfection of HEK cells for virus production.

Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentconcentration[ng/µL]volume [µL]
pIG17_?LentiCRISPR(AG Cathomen)11005.85
pIG17_003Envelope plasmid pMD2G6847.4
pIG17_004Packaging Plasmid pCMV∆R8.7420915.4
  • Packaging Mastermix
Component1x [µL]2.1x [µL]
pIG17_00347.499.54
pIG17_00415.432.34
150mM NaCl441.49927.12
total504.31059
  • PEI Mastermix
Component1x [µL]2.1x [µL]
23.2mM (1µg/µl)PEI24.9452.41
150mM NaCl475.04997.59
total499.981050

30.06.17

Production of Lentivirus

  • Collect the medium (containing virus supernatant) and add new medium after 24h

01.07.17

Production of Lentivirus

  • Collect the medium (containing virus supernatant) and add new medium after 24h
  • Mix the virus medium (24h + 48h)

Lentiviral transduction

  1. Plate about 200000 cells for each wells.
  2. Incubate the plates over weekend in incubator.
Jurkat sampleMedium [ml]Virus [ml]
120
21.50.5
311
40.51.5
502

PEI transfection with HEK for Hypoxia Test

  • Prepare 2*6-well Plates of HEK cells
  • Transfect cells via PEI:
wellplasmid
1-
2pIG17_009
3pIG17_013
4pIG17_013
5pIG17_013
6pIG17_013

BioRad Electroporation: Repeat pGFP transfection

9µg for each approach

  • Setting: 12 well plate, 1 well set, 1 pulse
ApproachCapacitance[µF]VoltageResistanceTime Constance [msec]
1: no plasmid95025020
2: Mock plasmid95025020
3: pIG17_00995025020
4: pIG17_0099502501000Ω20
5: pIG17_0099502501500Ω20

02.07.17

CoCl2 treatment with Jurkat cells

  • Cells treated with CoCl2 built clumps, which depends on the incubation time and CoCl2 concentrations.

Repeat Hypoxia test (24h after PEI)

No induction of GFP expression under hypoxia condition

  • Add different concentrations of CoCl2 (50µM, 100µM and 200 µM)
  • Observe the cells under fluorescence microscope 3h, 6h, 8h, 16h, 18h and 24h after CoCl2 treatment
  • No detectable induction of gene expression for every approach

Flow Cytometry (BioRad on July 1st)

  • Both negative and positive controls showed abnormal populations → need to repeat the experiments.

03.07.17

Repeat Hypoxia test (48h after PEI)

No induction of GFP expression under hypoxia condition

  • Add different concentrations of CoCl2 (50µM, 100µM and 200 µM)
  • Observe the cells under fluorescence microscope 3h, 6h, 8h, 16h, 18h and 24h after CoCl2 treatment
  • No detectable induction of gene expression for every approach

04.07.17

Lentiviral transduction (pLenti-CRISPR from AG Cathomen)

  • Change the medium and add puromycin for selection

BioRad Electroporation: Repeat pGFP transfection

9µg for each approach

  • Setting: 12 well plate, 1 well set, 1 pulse
ApproachCapacitance[µF]VoltageResistanceTime Constance [msec]
1: no plasmid95025020
2: Mock plasmid95025020
3: pIG17_00995025020
4: pIG17_009950250500Ω20
5: pIG17_082 (p526)95025020

05.07.17

PEI transfection (pIG17_022 and pIG17_023) for CTLA-4 promoter test

  • In total: 3*6 wells
  • Transfection with pIG17_009 as positive control: 1 well
  • Transfection with pIG17_022: 4 wellS
  • Transfection with pIG17_023: 4 wellS
  • Per Approach: 3µg DNA, 200µl serum free DMEM and 9µg PEI
  1. Split the cells 1:5 into 10 cm plate (on 03.07.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 200µl serum free DMEM (3µg from each plasmid)
  4. Add PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 200µl mix to wells

Flow Cytometry

  • Cells transfected with pIG17_082 showed high transfection efficiency
  • Cells transfected with our stock pIG17_009 showed low efficiency and low survival rate

06.07.17

Prepare cells for lentivirus-production

  • Plate about 4 mio. cells, make replicate

VEGF induction with Modeling group

  • No significant induction

07.07.17

Lentivirus(pIG17_119) production in HEK cells

Transfection of HEK cells for virus production.

Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentconcentration[ng/µL]volume [µL]
pIG17_119pCRE_GFP_CMV_mCherry16738.5
pIG17_003Envelope plasmid pMD2G243.413.3
pIG17_004Packaging Plasmid pCMV∆R8.748194
  • Packaging Mastermix
Component1x [µL]2.1x [µL]
pIG17_00313.328
pIG17_00448.4
150mM NaCl441.49927.12
total458.8963.52
  • PEI Mastermix
Component1x [µL]2.1x [µL]
23.2mM (1µg/µl)PEI24.9452.41
150mM NaCl475.04997.59
total499.981050

08.07.17

Lentivirus(pIG17_119) production in HEK cells

  • Change the medium

BioRad electroporation

4 Approaches (9µg/Approach) Setting: 12 well plate, 1 well set, 1 Pulse, ∞ Resistance

  1. Electroporated without plasmid
  2. CMV-GFP from Nicole (700 ng/µl)
  3. CMV-GFP (Yael, 06.06.17, 140.4 ng/µl)
  4. CMV-GFP (Dennis, 27.06.17, Dennis, 86.8 ng/µl)

09.07.17

Lentivirus(pIG17_119) production in HEK cells

  • Collect virus medium
  • Add new medium

10.07.17

Lentivirus(pIG17_119) production in HEK cells

  • Collect virus medium
  • Add new medium

11.07.17

PEI transfection (CTLA-4 Test)

  • In total: 3*6 wells
  • Transfection with pIG17_009 as positive control: 1 well (plasmid from Nicole); 1 well (Culture from Nicole, from us preped using promega miniprep)
  • Transfection with pIG17_022: 5 wellS
  • Transfection with pIG17_023: 5 wellS
  • Per Approach: 3µg DNA, 200µl serum free DMEM and 9µg PEI
  1. Split the cells 1:5 into 10 cm plate (on 03.07.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 200µl serum free DMEM (3µg from each plasmid)
  4. Add PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 200µl mix to wells

Lentiviral transduction (pIG17_119) of Jurkat cells

  • Use 6-well plate
  • plate 200000 cells/well
  • Make Titer test with virus medium

The cells were not successfully infected.

12.07.17

BioRad electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1 no plasmid95025020
2 CMV-GFP (Nicole)95025020
3 CMV-GFP (Culture from Nicole, promega mini)95025020
4 pIG17_104: Cas9-GFP-gRNA395025020

14.07.17

Lentivirus(pIG17_121) production in HEK cells

Transfection of HEK cells for virus production.

Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentconcentration[ng/µL]volume [µL]
pIG17_121pCTLA4(380)_GFP_CMV_mCherry16823.82
pIG17_003Envelope plasmid pMD2G321.910
pIG17_004Packaging Plasmid pCMV∆R8.748194
  • Packaging Mastermix
Component1x [µL]2.1x [µL]
pIG17_0031021
pIG17_00448.4
150mM NaCl441.49927.12
pIG17_1213.828
total504.951060
  • PEI Mastermix
Component1x [µL]2.1x [µL]
23.2mM (1µg/µl)PEI24.9452.41
150mM NaCl475.04997.59
total499.981050

BioRad electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1 no plasmid95025020
2 6µg Cas9-GFP-gRNA395025020
3 9µg Cas9-GFP-gRNA395025020
4 12µg Cas9-GFP-gRNA395025020

15.07.17

collect virus (pIG17_121)

flow cytometry (BioRad 7/14)

16.07.17

PEI transfection

  • In total: 3*6 wells
  • One well with non-transfected cells
  • Transfection with CMV-GFP as positive control: 1 well (JetStar); 1 well (Promega Mini)
  • Transfection with pIG17_013: 4 wellS
  • Per Approach: 3µg DNA, 200µl serum free DMEM and 9µg PEI
  1. Split the cells 1:5 into 6-well plate (on 15.07.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 200µl serum free DMEM (3µg from each plasmid)
  4. Add PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 200µl mix to wells

BioRad electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1 no plasmid95025020
2 CMV-GFP JetStar95025020
3 CMV-GFP promega mini95025020
4 CMV-mCherry (Nicole)95025020
5 pIG17_008 (Jana)95025020

17.07.17

Hypoxia Test in hypoxia incubator (AG Cathomen)

  • with 1%O2

Flow Cytometry

  • BioRad didn't work

18.07.17

Hypoxia Test in hypoxia incubator (AG Cathomen)

  • Fluorescence microscopy
  • After 24h incubation: cells showed normal morphology and there was no autofluorescence.

Lentiviral transduction

  • wash the virus-transducted cells (pIG17_119)

BioRad electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1 pIG17_11995025020
2 pIG17_12195025020
3 pIG17_03195025020
4 pIG17_03495025020
5 pIG17_03795025020
5 pIG17_08695025020

PEI transfection (CTLA-4 Test)

  • In total: 2*12 wells
  • One well with non-transfected cells
  • One well: Transfection with CMV-GFP as positive control
  • Transfection with pIG17_022: 5 wellS
  • Transfection with pIG17_023: 5 wellS
  • Transfection with pIG17_037: 5 wellS
  • Transfection with pIG17_086: 5 wellS
  • Per Approach: 1.5µg DNA, 100µl serum free DMEM and 4.5µg PEI
  1. Split the cells 1:10 into 12-well plate (on 17.07.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 100µl serum free DMEM (3µg from each plasmid)
  4. Add PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 100 µl mix to wells

PEI transfection (hypoxia test with CoCl2)

  • In total: 4*6-well plates
  • One well in each plate: with non-transfected cells
  • One well in each plate: Transfection with CMV-GFP as positive control
  • Transfection with pIG17_013: 8 wellS
  • Transfection with pIG17_031: 8 wellS
  1. Split the cells 1:10 into 6-well plate (on 17.07.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 100µl serum free DMEM (3µg from each plasmid)
  4. Add PEI(1µg/µl) to the mix while vortexing (PEI:DNA=3:1)
  5. incubate 15 min at RT
  6. Add 200 µl mix to wells

19.07.17

Concentrate the viruses (pIG17_119 and pIG17_121)

  • for 20 ml virus medium, use 5ml 20% sucrose
  • carefully add virus medium to sucrose (very tricky)
  • centrifuge at 4000 rpm over night
  • After centrifugation: remove the medium, put the falcon tube upside down and air dry.
  • slowly add 100 µl PBS (20-30x, also very tricky)
  • Incubate the pellet for 30-60 min
  • resuspend the cells 2x
  • aliquot the virus
  • store in -80°C freezer

Lentiviral transduction

  • plate 200000 Jurkat cells/ well in one 6-well plate
  • add the concentrated virus (pIG17_119 and pIG17_121) (30µl and 50µl)

CoCl2 treatment (24h after PEI)

  • Treatment with 2*6 well plate: 1 with pIG17_013 and 1 with pIG17_031
  • Make new 2M CoCl2 stock
  • add CoCl2 to the cells, end-concentration: 0, 300µM, 500µM and 100µM
  • Incubation for 24h and track the induction of cell expression

Hypoxia Test in hypoxia incubator (AG Cathomen)

  • Fluorescence microscopy
  • After 48h incubation: cells were mostly dead showing autofluorescence.

Flow Cytometry (BioRad on July 20th)

  • For mCherry excitation: FL3!!!

20.07.17

CoCl2 treatment (48h after PEI)

  • Treatment with 2*6 well plate: 1 with pIG17_013 and 1 with pIG17_031
  • Make new 2M CoCl2 stock
  • add CoCl2 to the cells, end-concentration: 0, 300µM, 500µM and 100µM
  • Incubation for 24h and track the induction of cell expression

Hypoxia Test in hypoxia incubator (AG Cathomen)

  • Fluorescence microscopy
  • After 72h incubation: cells were mostly dead showing autofluorescence.

21.07.17

BioRad Electroporation (Knock-Out plasmids)

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1 -95025020
2 CMV-GFP (#503 from Nicole)95025020
3 pIG17_082 (p526)95025020
4 Cas9-GFP-gRNA595025020
5 Cas9-GFP-scramble95025020

22.07.17

Lentivirus(pIG17_119 and pIG17_121) production in HEK cells

PEI Transfection of HEK cells for virus production.

Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentconcentration[ng/µL]volume [µL]
pIG17_119pCRE_GFP_CMV_mCherry16738
pIG17_121pCTLA4(380)_GFP_CMV_mCherry16823.82
pIG17_003Envelope plasmid pMD2G10530.7
pIG17_004Packaging Plasmid pCMV∆R8.7420815.5
  • Packaging Mastermix
Component1x [µL]2.1x [µL]
pIG17_00330.764.5
pIG17_00415.532.6
150mM NaCl441.49927.12
  • PEI Mastermix
Component1x [µL]2.1x [µL]
23.2mM (1µg/µl)PEI24.9452.41
150mM NaCl475.04997.59
total499.981050

22.07.17

Flow Cytometry: BioRad Electroporation 7/21

there was GFP positive signals during flow cytometry measurement but the cells were mycoplasma positive

Lentivirus(pIG17_119 and pIG17_121) production in HEK cells

  • Collect virus

23.07.17

Lentivirus(pIG17_119 and pIG17_121) production in HEK cells

  • Collect virus

24.07.17

Mycoplamsa Test

  • Both Cas9-GFP-gRNA5 and Cas9-GFP-scramble transfected cells were mycoplasma positive

25.07.17

PEI transfection of CHO cells: Hypoxia & Tet system

  1. Split the cells 1:2 in 12-well plate (on 24.07.17)
  2. Per Approach: 1µg DNA + 8µg PEI and fill up to 100 µl with serum free DMEM
  3. Thaw PEI reagent at RT
  4. Add PEI(1µg/µl) to the mix while vortexing
  5. incubate 15 min at RT
  6. Add the mix to cells
PlasmidApproachDNA Concentration[ng/µl]DNA volumeVolume of DMEM[µl]
CMV-GFP (#503 from Nicole) 1 25.54052
CMV-mCherry (AG Hiltbrunner) 11200191
pIG17_012625324528
pIG17_0136583.310.3541.7
pIG17_0316746.98544
Tet-GFP (Shima)2 (protocol from Shima)5203.8180.2
Tet-GFP (Shima)2 (our protocol)5205.8200

Tetracycline induction of CHO

  • 3h after PEI transfection: remove media, add tetracycline to new media (1:1000 dilution)
  • Tetracycline Stock: 2mg/ml (End: 1µg per well of 12-well plate)
  • 3h after adding tetracycline: no induction
  • incubation till the next day: microscopic observation
  • Gene expression was induced by tetracycline compared to the tetracycline-untreated cells

PEI transfection of HEK cells: Hypoxia

  1. Split the cells 1:5 in 12-well plate (on 24.07.17)
  2. Per Approach: 1.5µg DNA + 4.5µg PEI and 100 µl serum free DMEM
  3. Thaw PEI reagent at RT
  4. Add PEI(1µg/µl) to the mix while vortexing
  5. incubate 15 min at RT
  6. Add the mix to cells
PlasmidApproachDNA Concentration[ng/µl]DNA volume
CMV-GFP (#503 from Nicole) 1 25.559
CMV-mCherry (AG Hiltbrunner) 112001.25
pIG17_0126131.412
pIG17_0136583.315.5
pIG17_0316746.912

26.07.17

CoCl2 treatment

  • Add corresponding concentration of CoCl2 to (hypoxic plasmid) transfected cells (CHO and HEK)
  • CoCl2 stock: 2M
Endconcentration of CoCl2[µM]Volume from Stock[µl]
00
1000.1
2000.2
3000.3
5000.5
10001

27.07.17

SEAP assay with HEK cells

- gather 200 µl of cell supernatant
- incubate cell supernatant at 65°C for 30min
- centrifuge cell supernatant for 1 min at 1250g
- add 150 µl supernatant into a cuvette
- add 500 µl 2x SEAP buffer
- add 100 µl pNPP and remove bubbles carefully
- measure in a nano drop every 5min for 2h

Replace Stock cultures with new culture from Toolbox

31.07.17

Mycoplasma Test: New HEK stock

  • New HEK cells were mycoplasma negative


01.08.17

BioRad Electroporation

  • Per Approach: 9µg DNA, 2 mio.JK cells
ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1pIG17_009 (06.06 Yael)95025020
2Cas9-GFP-gRNA595025020
3Cas9-GFP-scramble95025020
4KO-Kit: 203+10195025020
5KO-Kit: 203+10495025020
6KO-Kit scramble95025020

PEI transfection: Hypoxia - SEAP assay in HEK cells

  • Per Approach: 1.5µg DNA, 4.5µg PEI, 100µl DMEM
Plasmid numbercomponentconcentrations of the used tubes[ng/µL]volumes from the used tubes[µL] for 36µg
pIG17_013HRE-SEAP583.3 and 88.155.7 and 40
pIG17_002CMV-SEAP92.0 and 91.4350 and 41.6

Due to the concentrations and volumes in the tubes for each approach two were used. Per construct 24 wells were used. Each well will have different CoCl2 concentrations. For each approach triplicates will be analysed.

02.08.17

Flow Cytometry of BioRad Electroporation (8/1): KO plasmids

For the knockout Kit we could see the most living GFP positive cells (26.2%) for the cotransfection of 203 and 104. The Cas9 GFP guide RNA5 had 5.21% GFP positive cells under the gated living cells.

Addition of CoCl2: Hypoxia - SEAP assay in HEK cells

1:10 dilution of a 2M CoCl2 stock with PBS. CoCl2 was added to HRE-SEAP approaches in order to induce the promoter, as well as to CMV-SEAP approaches

Approaches: For each approach triplicates were done.

CoCL2 concentration[µM]volume[µL] of 200mM CoCl2
00
1000.55
1500.825
2001.1
2501.375
3001.65
5002.75
10005.5

Lentivirus production in HEK cells: Mock, Knock-down plasmid (114,115,116), pIG17_119, pIG17_121

Follow the protocol from Frederike (AG Schamel) PEI Transfection of HEK cells for virus production.

  1. Prepare packaging and PEI mix separately and incubate for 10 min
  2. Mix packaging mix with transferplasmid
  3. Add PEI mix to DNA mix and incubate for 15 min
  4. Add the PEI+DNA mix to cells
Lentiviral packaging cellsHek293T cells
Plate size10 cm
Total DNA/plate12.87 µg
Transfer: gag/pol: env ratio2:1:1
Construct6.43 µg
pCMV∆R8.743.22 µg
pMD2G3.22 µg
N/P ration15
Plasmid numbercomponentNo. of Approachesconcentration[ng/µL]volume [µL]
pIG17_082Mock(p526):EF1-GFP268189.1
pIG17_114Knock-down plasmid2350; 43218.4; 15
pIG17_115Knock-down plasmid1-all two tubes
pIG17_116Knock-down plasmid2492; 35620; 8.5
pIG17_003Envelope plasmid pMD2G7150;68.7;63.730;180;80
pIG17_004Packaging Plasmid pCMV∆R8.747926.624.3
  • Packaging Mastermix
Component7x [µL]
pIG17_003290
pIG17_00424.3
150mM NaCl3090.43

Follow our protocol of PEI transfection

  1. DNA:PEI ratio = 1:8
  2. Mix DNA with 1 ml serum free DMEM
  3. Add PEI while vortexing
  4. 15 min incubation
ComponentMass/approach[µg]
pIG17_0033.2
pIG17_0043.2
pIG17_1196.4
pIG17_1216.4

03.08.17

Hypoxia - SEAP assay in HEK cells

- gather 200 µl of cell supernatant
- incubate cell supernatant at 65°C for 30min
- centrifuge cell supernatant for 1 min at 1250g
- add 80 µl supernatant into a 96 well plate
- add 100 µl 2x SEAP buffer
- add 20 µl pNPP and remove bubbles carefully
- measure in the plate reader every 30s for 2h

–> Experiment failed and will be repeated

05.08.17

Lentiviral Transduction

  • Plate 200000 Jurkat cells/well in 6-well plate
  • Titer Test of virus
  • Incubation during weekend

Puromycin killing curve

  • testing of untransfected JK cells and the scramble JK cells that have been transfected with the KO Kit (for each 5 conditions will be tested)
  • dilution of the Puro stock (10 mg/ml) 1:100 –> 100 µg/ml
  • cells will be distributed in a 12 well plate with 1 ml of media
concentration of Purovolume from 100 µg/ml [µl]
00
0.1251.25
0.22
0.252.5
0.55

06.08.17

PEI for HRE-SEAP and CMV-SEAP; repetition of the SEAP assay

  • cells will be distributed in a 12 well plate on the next day
  • one master mix for PEI
  • 1 ml DMEM, 30 µl PEI, 10 µg DNA per each approach
  • cotransfection of CMV-SEAP (95%) and HRE-SEAP (95%) with CMV-GFP (5%)
constructconcentration [ng/µl]volume added for 9.5 µg [µl]
HRE-SEAP248.238.3
CMV-SEAP415.222.9
constructconcentration [ng/µl]volume added for 0.5 µg [µl]
CMV-GFP303.11.6
  • Per Approach: 9µg DNA, 2 mio JK cells

BioRad Electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1no Plasmid95025020
2CMV-GFP95025020
3CMV-GFP95025020
4Ca construct95025020
5Ca construct95025020
6Ca construct95025020
7Cas9-GFP-gRNA195025020
8Cas9-GFP-gRNA195025020
9Cas9-GFP-gRNA495025020
10Cas9-GFP-gRNA495025020
11Cas9-GFP-gRNA595025020
12Cas9-GFP-gRNA595025020
13Cas9-GFP-scramble95025020
14Cas9-GFP-scramble95025020

07.08.17

PEI for HRE-SEAP and CMV-SEAP; repetition of the SEAP assay

  • GFP was observed under the microscope
  • the cells were evenly distributed onto 12 well plates
  • induction with CoCl2 after the cells recovered from the transfer
  • 8 conditions per approach, everything done in triplicates
concentration of CoCl2 [µM]volume added [µl]
00
1000,5
1500,75
2001
2501,25
3001,5
5002,5
10005

08.08.17

Lentivirus production in HEK cells: Mock, pIG17_133, pIG17_119, pIG17_121

PEI for HRE-SEAP and CMV-SEAP; repetition of the SEAP assay

The SEAP assay was negative. No changes in the OD for either CMV-SEAP or HRE-SEAP could be observed. Due to these troubles the next test will be postponed till all constructs have undergone another test digestion and sequencing.

10.08.17

Lentiviral transduction

  • Virus: pIG17_082, pIG17_119, pIG17_121 and pIG17_133
  • Plate 200000 virus for infection
  • As control: HEK with 1:1 infection

Cell Sorting: KO-plasmid transfected cells

  • Cas9-GFP-scramble

  • Cas9-GFP-gRNA1

  • Cas9-GFP-gRNA4

  • Cas9-GFP-gRNA5

11.08.17

BioRad Electroporation

  • 9µg DNA and 2 mio. cells/ approach
ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1no Plasmid95025020
2KO Kit 203+10195025020
3KO Kit 203+10495025020
4Lenti-Cas9-Puro95025020

Puromycin killing curve

Day 6 after addition of puromycin: due to low cell numbers, the cells were spun down, resuspended in 100 µl and then counted.

Results for untransfected Jurkat cells and Jurkat cells transfected with the scramble:

Puromycin addition to the electroplated KO Kit cells

Approaches:

  • 1x scramble no treatment
  • 1x scramble 0.2 µg/ml
  • 2x KO Kit 203+101 0.2 µg
  • 2x KO Kit 203+104 0.2 µg

Transfer to a 6 well plate

12.08.17

Puromycin: electroplated KO Kit cells

Due to low cell counts the duplicates were pooled together and the cells transferred to a 12 well plate.

14.08.17

PEI: HRE-SEAP, pWW56

in 10cm plates:

  • 10 µg DNA
  • 1ml DMEM
  • 30 µl PEI

approaches:

  • HRE-SEAP
  • pWW56 as a positive SEAP control
  • untransfected control
constructconcentration [ng/µl]volume used for 10 µg DNA
HRE-SEAP420,523,78
pWW56555,518,00

15.08.17

SEAP

  • the cells were evenly distributed onto 12 well plates
  • induction with CoCl2 after the cells recovered from the transfer
  • 8 conditions per approach, everything done in triplicates
concentration of CoCl2 [µM]volume added [µl]
00
1000,5
1500,75
2001
2501,25
3001,5
5002,5
10005

Electroporated KO Kit cells

Due to low cell counts the samples were transferred to a conical 96-well plate

BioRad Electroporation

ApproachplasmidCapacitance[µF]VoltageResistanceTime Constance [msec]
1no Plasmid95025020
2CMV-GFP + CMV-mCherry95025020
3pIG17_08695025020
4pIG17_08695025020

Lentivirus Production in HEK cells

  • Approached by Frederike (AG Schamel)
  • 2 Approaches (pIG17_119 & pIG17_121) with our HEK cells, envelope & packaging plasmid,PEI
  • 1 Approach (pIG17_119) with material from AG Schamel: HEK, envelope & packaging plasmid, PEI

16.08.17

SEAP

The SEAP assay was performed as mentioned before, however, there was a 1:5 dilution included of the HRE-SEAP samples.

For the analysis of the SEAP assay, the averages of the triplicates were calculated and the respective wild-type control subtracted from the HRE-SEAP samples.

For the undiluted HRE-SEAP construct the following graph was obtained:

For the 1:5 dilution the following graph was obtained:

For the 1:5 dilution absorbance values are missing at the start because they were negative and therefore regarded as 0.

The positive control did not work due to the promoter of this construct which was dependent on an input that wasn't given. Furthermore, the samples did not show what we expected, considering that the uninduced control showed a steeper slope than most of the samples. Due to this reason the experiment was repeated.

17.08.17

Lentiviral Transduction with virus-medium

  • Approaches for Titer test: both normal transduction and spin-infection.
  • On 8/20: After washing the cells, there was no signal from reporter gene expression.

23.08.17

PEI transfection of HEK cells for lentivirus production

  • Transferplasmid: pIG17_130 (duplicate)

transfection_pei_lentivirus_23.08.17.xlsx

25.08.17

Concentrate virus (pIG17_130)

  • Add 8 ml 20% Sucrose (in PBS + 1Mm EDTA) in 50 ml Falcon Tube
  • Add virus media slowly over sucrose (Use 25ml pippet)
  • Centrifuge over night at 4000 rpm, 4°C

26.08.17

Lentiviral Transduction (pIG17_130)

  • Plate 200000 cells/well (HEK & Jurkat) into 6 well plate
  • Titer of virus: 0, 15 µl, 30 µl


As shown in the picture the transduction of HEK cells showed high efficiency. The cells were also mycoplasma-negative, so that the cells can be sorted at Bioss.


The efficiency of transduction was quite low. The positive signal showed above may come from dead cells. New transduction was done on 8/30 with higher virus titer (45µl and 60µl).


Lentiviral transduction of Jurkat cells with higher virus titer showed higher efficiency than previous try. These cells are sent for microplasma-test and for cell sorting.

30.08.17

PEI transfection of HEK cells for lentivirus production (133&134)


02.09.17

PEI transfection of HEK cells for lentivirus production (132)

04.09.17

BioRad Electroporation

9µg for each approach

  • Setting: 12 well plate, 1 well set, 1 pulse
Number of approachesPlasmidConcentration [ng/µl]Volume for 9ng [µl]Capacitance[µF]VoltageResistanceTime Constance [msec]
1no DNA0095025020
1CMV GFP, CMV mCherry327.1, 12001376, 3.7595025020
2pIG17_031746.912.0595025020
2pIG17_0341210.97.4395025020
2pIG17_037851.910.5695025020

05.09.17

Washing of the electroporated cells

06.09.17

Sorting of the electroporated cells Gating after:

  • living cells
  • single cells
  • mCherry positive cells

Sorting strategy:
Control igem_gfp_mcherry_jurkat_elektro_tube_001_06092017102918.pdf
pIG17_031 igem_gfp_mcherry_jurkat_31_tube_001_06092017103019.pdf
pIG17_034 igem_gfp_mcherry_jurkat_34_tube_001_06092017110102.pdf
pIG17_037 igem_gfp_mcherry_jurkat_37_tube_001_06092017112901.pdf

Sorting reports:
130 Jurkat: sort_report_06092017122940.pdf
pIG17_034 sort_report_06092017112206.pdf
pIG17_037 sort_report_06092017120252.pdf

07.09.17

Induction of the promoters

Set-up for pIG17_031 - hypoxia

- in a 96 well plate with 200 µl volume:

  • used concentration of CoCl2: 20 mM
  • approximately 15000 cells per approach
CoCl2 concentration [µM]Number of approachesVolume added [µl]
010
5020.5
10021
20022
40024
80028

.

Set-up for pIG17_034 - pH

- in a 96 well plate with 200 µl volume:

  • used concentration of NaOH: 1 M
  • used concentration of lactate: 0.6 M
  • used concentration of Forskolin: 10 mM
  • approximately 15000 cells per approach
Lactate (L), NaOH (N) or Forskolin (F) concentration or pHNumber of approachesVolume added [µl]
100 µM (F)12
8.17 pH (N)20.4
7.85 pH20
6.54 pH (L)28
6.19 pH (L)210.67
  • 6 well plate with 3ml RPMI and the same concentration of lactate or NaOH as in the 96 well plate but without cells
  • used in order to measure the pH
  • amount of cells will be neglected as it is rather low

Set-up for pIG17_037 - VEGF

- in a 96 well plate with 200 µl volume:

  • used concentration of VEGF: 1 µg/ml
  • approximately 15000 cells per approach
VEGF concentration [ng/ml]Number of approachesVolume added [µl]
010
2.520.5
521
1022
2024
4028

27.08.17 - 07.09.17

Neomycin killing curve of Jurkat cells

11.09.17

PEI transfection of HEK cells for lenvirus production

Viafect - new testing

Jurkat cells with CMV-GFP; transfection mix:

  1. 12 well plate
  2. 2 mio cells per well in 500 µl medium
  3. 0.5 µg DNA per well
  4. Viafect/DNA = 2:1 and 3:1
  5. 50 µl total volume per approach (filled up with serum free DMEM)
  • removal of the medium from pelleted cells
  • resuspending of pelleted cells in the transfection mix
  • addition of 500 µl RPMI 1649 with FCS after
    1. 0 seconds
    2. 4 seconds
    3. 8 seconds
    4. 16 seconds
    5. 32 seconds
  • transfer of the cell suspension to a 24 well plate

Analysis in the fluorescence microscope showed that this method did not work again

15.09.17

PEI transfection of HEK cells for lenvirus production

Constructs used: pIG17_130, CRE 4x
transfection_pei.pdf

20.09.17

PEI transfection of HEK cells for lenvirus production

Constructs used: NFAT 4x, HRE 4x
transfection_pei_20.9..pdf The concentrated viruses were stored in -80°C freezer as backup.

21.09.17

PEI transfection of HEK cells for SEAP assay

The set up for the SEAP assay was the same as before, however there wild-type controls with the same amount of CoCl2 included.
All samples were done in triplicates

22.09.17

SEAP assay

Induction with CoCl2, the used concentrations of CoCl2 were: 0, 20, 40, 80, 160, 320 and 640 µM.

23.09.17

SEAP assay

The SEAP assay was performed as before, this time we included a cell count of each pooled triplicate.
For the analysis first the averages of the triplicates were calculated and then divided by the cell count. Afterwards, the corresponding wild-type control was subtracted from the samples and all negative values were set to 0.

We could see that only 20, 40 and 80 µM CoCl2 showed a steeper slope in our samples than the 0 µM control.

24.09.17

PEI transfection of HEK cells for lenvirus production

Constructs used: pIG17_134, CRE 4x
transfection_pei_lentivirus_24.9.17.xlsx

24.09.17

HRE testing with stable HEK cell lines


04.10.17

PEI transfection of HEK cells for lenvirus production

Constructs used: pIG17_133, Suiside plasmid transfection_pei_4.10.17.xlsx

09.10.17

CFP test

Due to the problems with our GFP readout we performed a search in BLAST and found out that our eGFP was wrongly annotate and is a eCFP. We also could see that in the FACS. For this we tested our Jurkat knockdown 130 cells, that stably express CFP then. On the left these cells are measured in the CFP channel and on the right in the GFP channel. The depicted cells are gated for living and single cells:

There is a clear shift and our cells are really CFP positive and not GFP positive

CRE Test in Jurkat cells

With Forskolin and IBMX, the cAMP pathway in the cell is activated.

  • Cell lines: WT Jurkat, stable CRE4X Jurkat
  • Conditions: untreated, induction with 100 µM Forskolin, induction with 100 µM IBMX, induction with 100 µM Forskolin and 100 µM IBMX.

FACS:
Cells were gated for living, single, mCherry positive cells and then the amount of CFP positive cells was measured:

''

10.10.17

HRE Test in Jurkat cells

HRE Test in HEK cells

12.10.17

CRE Test in HEK cells

  • On 11th of Oct.: PEI transfection with CMV-TDAG8 plasmid.

CRE Test in Jurkat cells

We obtained the following results after gating for living, single, mCherry positive cells:

VEGF Test in HEK cells

Lab Notebook Modeling

06.06.17

Titration RPMI 1640 vs. lactic acid

Aim: setup of pH in the Medium for pCRE-tests

stock-solutions:
c(lactic acid, conc.) = 12.09 mol/l
c(lactic acid, 1:20) = 0.6 mol/l (diluted with RPMI 1640)

Execution:

  1. add lactic acid (0.6 M) to medium (Table)
  2. measure pH with pH-Meter
  3. repeat each measurement 3 times
V(RPMI 1640) [µl]V(lactic acid, 0.6 M) [µl]c(lactic acid) [µmol/mL]s(c ) [µmol/ml]pH 1pH 2pH 3pHs(pH)
2000205.990.27.147.187.167.160.01
20004011.90.36.906.916.886.900.01
20006017.60.56.576.616.666.610.03
20008023.30.66.356.316.276.310.02
200010028.80.85.915.655.755.770.08
200012034.20.94.994.964.934.960.02
20001404014.414.374.364.380.02
20001604514.314.124.104.180.07
20001805013.983.953.983.970.01


Resulting Titration curve for lactic acid in RPMI 1640:

Titration curve with pH vs. c(lactic acid)Titration curve with pH vs. V(lactic acid 0.6 M) per ml

13.06.17

Cell survival and CFP-stability at different pH-values

used cells: Jurkat with CMV_CFP
cell density: 1 mio cells/ml
incubation times: 3 h, 6 h, 12 h

Execution:

  1. count cells
  2. centrifuge cells
  3. resuspend cell pellet in RPMI 1640 (target-concentration: 2 mio cells/ml)
  4. mix 1.5 ml RPMI 1640 + calculated volume of lactic acid (0.6 M) + 500 µl cell suspension on 12-well-plate (Table 1)
  5. incubate for defined time in the CO2-incubator
  6. centrifuge samples
  7. resuspend cell pellets in PBS FACS buffer (500 µl)
  8. FACS analysis
  9. used medium was stored at 4°C for pH-test next day
pHV(lactic acid, 0.6 M) [µl]RPMI 1640 [µl]
5.01202000
5.51072000
6.0922000
6.5682000
7.002000


Results:

→ Jurkat cells can survive in medium with pH ≥ 6.0

cell survival

after 3hafter 6hafter 12h

CFP fluorescence

after 3hafter 6hafter 12h

14.06.17

pH-measurement of used medium (13.06.17)

set pH6 h12 h
pH = 5.04.674.78
pH = 5.55.195.43
pH = 6.06.266.33
pH = 6.56.956.76
untreated (pH = 7.25)7.737.47

Result: pH in incubation medium is rising over the time! Expected was a lowering, as the cells secrete lactic acid.

17.06.17

Investigation of the pH-changes

test of pH-change of RPMI 1640 at different conditions

tested conditions:

  • incubation in stock RPMI 1640 or RPMI 1640 with lactic acid (pH = 6.0)
  • medium with/without Jurkat cells (500k/ml)
  • incubation at 37°C in incubator with CO2 (5%) atmosphere or incubated with cap
  • incubation at atmospheric conditions
  • incubation time: 6 h
  1. make aliquots of RPMI 1640 (15 ml, pH = 6.0) and untreated RPMI 1640 (15 ml)
  2. aliquot 1: measure pH before incubation
  3. other aliquots: incubate at conditions described above

Results

6 h, 37 °C, 5% CO2RPMI 1640 (pH = 6.0)stock RPMI 1640
pH before incubation5.877.45
pH after incubation6.467.68


6 h, 37 °C, 5% CO2, Jurkat cellsRPMI 1640 (pH = 6.0)stock RPMI 1640
pH before incubation5.877.45
pH after incubation6.487.70


6 h, 37 °C, with capRPMI 1640 (pH = 6.0)stock RPMI 1640
pH before incubation5.877.45
pH after incubation6.638.46


6 h, 25 °C, atmospheric conditionsRPMI 1640 (pH = 6.0)stock RPMI 1640
pH before incubation5.877.45
pH after incubation6.247.79

19.06.17

pH change vs. incubation time

  1. set pH to 6.3
  2. prepare 2 ml aliquots of RPMI 1640 in falcon tubes
  3. incubate in CO2 incubator for t (min) = 0, 10, 20, 30, 50
  4. measure pH directly after taking sample out of incubator
  5. measure pH one minute later
time /minpH directpH after 1 min
06.326.32
106.036.25
206.066.28
305.886.36
506.366.65

pH is strongly rising after taking the sample out of the incubator. This may be caused by the solved CO2, that lowers the pH in the incubator. After taking the sample out of the incubator, the CO2 goes to the gas phase which causes a rising of the pH. Additionally, the bicarbonate buffer is destabilized as the addition of lactic acid moves the equilibrium of the buffer to CO2 + H2O. That leads to a higher pH than before the incubation.

04.07.17

VEGF dilution

m0 = 10 µg start concentration: solid state target concentration: 1 µg/ml

  1. resuspend pellet in 100 µl ddH2O (stock solution, 100 µg/ml)
  2. dilute 1 µl of stock solution with 99 µl ddH2O (aliquots, 1 µg/ml)
  3. store aliquots at -20 °C

06.07.17

pCTLA4 vs. [VEGF]

Aim: determination of suitable [VEGF] and incubation time

tested cells: HEK with transient pCTLA4-CFP (pIG17_022 (330 bp); pIG17_023 (380 bp)),PEI transfected
[VEGF](ng/ml) = 0.0, 0.5, 5.0, 10.0
t (h) = 3, 8, 24
controls: CMV_CFP (pIG_009), untransfected cells

Execution:

  1. cells were PEI transfected by cell culture on 05.07.17
  2. 24h after PEI transfection: replace old medium by RPMI 1640 (2 ml / well), add VEGF (1 µg/ml)
  3. after incubation time: analysis via fluorescence microscope and FACS

Results:

18.07.17

PEI transfection of plasmids pIG17_022/23/37/86

used cells: HEK cells

Plasmid numbercomponent
pIG17_022Ctla4(380bp)-CFP
pIG17_023Ctla4(330bp)-CFP
pIG17_037Ctla4(330bp)-CFP-CMV-mCherry
pIG17_086Ctla4(380bp)-CFP-CMV-mCherry
  1. Split the cells 1:5 into 10 cm plate (on 21.04.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

19.07.17

VEGF test

used cells: PEI transfected cells from 19.07.17 with pIG17_022/023/037/086

  1. add following VEGF concentrations to the cells: 0 ng/ml, 0.5 ng/ml, 5 ng/ml, 10 ng/ml, 50 ng/ml
  2. incubate for 24 h

fluorescence microscope:

constructbright fieldCFP
positive control
CMV-CFP
negative control

05.08.17

Interlab Study transformation

- heat shock transformation of DH5-α with plasmids from Kit plate 7

wellapproach
21Bpositive control
21Dnegative control
21FDevice 1
21HDevice 2
21JDevice 3
21LDevice 4
21NDevice 5
21PDevice 6

Interlab Study OD600 calibration measurements

- measure absorbance at 600 nm of H20 (100 µl) and LUDOX-S40 (100 µl) - each four replicates

replicateLUDOX-S40H2O
10,043 0,035
20,049 0,036
30,047 0,035
40,052 0,035

Interlab Study fluorescein standard curve measurements

- centrifuge fluorescein
- dilute fluorescein in PBS to a final concentration of 50 µM
- add PBS (100 µl) into well A2-A12, B2-B12, C2-C12, D2-D12 of a 96-well-plate
- add fluorescein stock solution (200 µl, 50µM) into well A1, B1, C1, D1
- transfer 100 µl from well A1 into well A2, pipett up and down
- transfer 100 µl from well A2 into well A3, pipett up and down
- do the same till the end of the row
- transfer 100 µl from every last well into the liquid waste
- repeat these steps for rpw B, C and D
- measure the fluorescence intensity in the plate reader

uM Fluorescein50,002512,56,253,1251,56250,781250,3906250,19531250,097656250,0488281250
Replicate 1 41550 28587 15976 9537 5674 2712 1357 639 348 160 91 0
Replicate 2 42434 29060 17592 10169 5250 2705 1155 581 302 160 67 11
Replicate 3 42066 29363 17743 9882 5015 2671 1303 665 314 187 87 0
Replicate 4 40538 28766 17808 9934 5127 2818 1344 662 366 176 113 13

06.08.17

pick colonies from Interlab Study

- pick 2 colonies from each plate
- incubation overnight at 37°C

07.08.17

Interlab Study cell measurements

- measure OD600 of the overnight cultures
- dilute the bacteria in medium with Chloramphenicol to a final OD = 0.02
- incubation at 37°C and 220 rpm
- take 500 µl of the cultures after 0h, 2h, 4h and 6h and place samples on ice
- transfer four replicates of 100 µl of each sample into a well of a 96-well-plate
- measure OD600 and fluorescence intensity in the plate reader (settings: excitation: 485 nm; emission: 530/30)

Abs600 after 0h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 0,044 0,042 0,045 0,045 0,046 0,045 0,052 0,043 0,041
Colony 1, Replicate 2 0,046 0,047 0,045 0,045 0,047 0,048 0,046 0,064 0,041
Colony 1, Replicate 3 0,044 0,045 0,047 0,044 0,054 0,046 0,045 0,045 0,043
Colony 1, Replicate 4 0,045 0,045 0,045 0,058 0,045 0,046 0,044 0,046 0,046
Colony 2, Replicate 1 0,046 0,047 0,047 0,05 0,046 0,044 0,044 0,044 0,043
Colony 2, Replicate 2 0,046 0,05 0,045 0,045 0,045 0,046 0,05 0,046 0,046
Colony 2, Replicate 3 0,049 0,049 0,046 0,045 0,053 0,046 0,047 0,047 0,044
Colony 2, Replicate 4 0,046 0,051 0,043 0,043 0,044 0,049 0,048 0,05 0,042

Fluorescence intensity after 0h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 30032 29468 47522 30425 37202 30859 38967 39848 40167
Colony 1, Replicate 2 38825 32134 33823 37326 38129 41631 37103 40926 383
Colony 1, Replicate 3 33426 38291 40791 38829 35103 35503 39082 38194 40506
Colony 1, Replicate 4 30451 31664 40586 40661 37774 40046 38716 42854 39830
Colony 2, Replicate 1 31429 32597 33648 34085 40700 31595 28914 36532 40434
Colony 2, Replicate 2 39464 32361 39432 40150 39543 41282 38247 33320 39231
Colony 2, Replicate 3 32329 31485 34366 36754 39980 41296 33348 33391 39612
Colony 2, Replicate 4 31225 36435 37063 38806 42787 40222 36968 36323 38492

Abs600 after 2h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 0,046 0,045 0,045 0,065 0,047 0,047 0,046 0,044 0,041
Colony 1, Replicate 2 0,047 0,047 0,046 0,048 0,048 0,046 0,047 0,046 0,043
Colony 1, Replicate 3 0,046 0,047 0,046 0,045 0,053 0,047 0,048 0,045 0,044
Colony 1, Replicate 4 0,047 0,047 0,055 0,058 0,047 0,046 0,045 0,046 0,043
Colony 2, Replicate 1 0,078 0,048 0,048 0,049 0,048 0,047 0,046 0,047 0,043
Colony 2, Replicate 2 0,048 0,055 0,048 0,049 0,047 0,046 0,049 0,049 0,041
Colony 2, Replicate 3 0,047 0,048 0,048 0,048 0,047 0,049 0,048 0,05 0,045
Colony 2, Replicate 4 0,046 0,049 0,047 0,046 0,045 0,048 0,048 0,049 0,047

Fluorescence intensity after 2h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 32478 41305 33618 42435 34249 34205 34202 34949 29069
Colony 1, Replicate 2 34345 42706 38570 43860 36547 44267 45267 47187 37138
Colony 1, Replicate 3 38418 39069 38866 44974 36631 43986 46760 39103 39152
Colony 1, Replicate 4 36379 42391 36129 45361 39003 44229 32123 33637 41422
Colony 2, Replicate 1 36339 36658 36464 35639 43270 42121 34385 44627 40854
Colony 2, Replicate 2 40618 43596 36428 44147 44768 43257 45151 46402 39718
Colony 2, Replicate 3 39505 36517 43094 44747 36790 40034 44931 40597 39712
Colony 2, Replicate 4 36751 41857 35023 41187 35201 43423 32927 35063 37786

Abs600 after 4h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 0,056 0,055 0,055 0,052 0,058 0,052 0,053 0,046 0,042
Colony 1, Replicate 2 0,054 0,056 0,054 0,052 0,055 0,054 0,055 0,048 0,041
Colony 1, Replicate 3 0,055 0,061 0,055 0,052 0,057 0,052 0,055 0,049 0,043
Colony 1, Replicate 4 0,055 0,056 0,05 0,053 0,053 0,052 0,05 0,049 0,043
Colony 2, Replicate 1 0,053 0,059 0,057 0,061 0,053 0,059 0,053 0,059 0,043
Colony 2, Replicate 2 0,054 0,056 0,058 0,062 0,053 0,059 0,055 0,059 0,043
Colony 2, Replicate 3 0,054 0,056 0,058 0,063 0,057 0,059 0,055 0,06 0,043
Colony 2, Replicate 4 0,054 0,056 0,056 0,058 0,049 0,058 0,056 0,061 0,042

Fluorescence intensity after 4h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 39398 41211 43472 34629 40024 37129 34265 40517 38102
Colony 1, Replicate 2 39957 41499 44252 43313 44778 36906 43865 42985 38644
Colony 1, Replicate 3 39198 41382 35548 45574 47239 39866 44132 44431 37943
Colony 1, Replicate 4 35352 41590 26466 44768 45637 44736 29248 37825 38618
Colony 2, Replicate 1 41468 42577 34717 39284 40334 42558 46026 41271 39053
Colony 2, Replicate 2 43892 40143 36619 42028 41878 43940 38303 47567 37978
Colony 2, Replicate 3 43598 43486 44578 44449 44828 44235 42442 37273 39116
Colony 2, Replicate 4 43048 43193 42421 38871 34908 41518 43876 44582 37838

Abs600 after 6h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 0,098 0,093 0,084 0,084 0,087 0,078 0,083 0,062 0,048
Colony 1, Replicate 2 0,09 0,094 0,082 0,076 0,089 0,083 0,091 0,064 0,041
Colony 1, Replicate 3 0,091 0,09 0,92 0,082 0,089 0,08 0,086 0,066 0,043
Colony 1, Replicate 4 0,086 0,084 0,09 0,079 0,086 0,078 0,084 0,063 0,043
Colony 2, Replicate 1 0,081 0,093 0,094 0,076 0,075 0,097 0,087 0,097 0,043
Colony 2, Replicate 2 0,079 0,092 0,091 0,099 0,073 0,095 0,085 0,107 0,043
Colony 2, Replicate 3 0,08 0,086 0,101 0,13 0,073 0,1 0,088 0,107 0,042
Colony 2, Replicate 4 0,078 0,092 0,089 0,108 0,073 0,093 0,09 0,105 0,042

Fluorescence intensity after 6h:

Neg. Control Pos. Control Device 1 Device 2 Device 3 Device 4 Device 5 Device 6 LB + Chlor (blank)
Colony 1, Replicate 1 44819 43197 34990 39952 35312 44026 44108 34395 41891
Colony 1, Replicate 2 35745 41624 42712 36773 38191 39327 36222 38684 44486
Colony 1, Replicate 3 43503 43470 38934 39338 39338 47418 46563 41520 40216
Colony 1, Replicate 4 40336 39507 37827 41517 41517 46271 47662 42298 38353
Colony 2, Replicate 1 34982 34672 46394 18665 18665 36165 36374 40293 40211
Colony 2, Replicate 2 43791 37273 44467 41079 41079 41516 44327 38827 38014
Colony 2, Replicate 3 39248 40869 38169 48933 48933 44903 41210 38643 40437
Colony 2, Replicate 4 38078 38846 41889 49892 49892 42376 46132 38525 39913

19.07.-27.07.17

pH change over time in incubator with RPMI1640 and acid

compositionstart pHincubation timetrend
2ml RPMI16407.1493 min
2ml RPMI16407.1667 min
2ml RPMI16407.15104 min
2ml RPMI1640 + 65µl lactic acid (0.6 M)6.295 min
2ml RPMI1649 + 65µl lactic acid (0.6 M)6.390 min
2ml RPMI1640 + 20µl HCl(1.2 M)6.6105 min
2ml RPMI1640 + 30µl HCl(1.2 M)6.6100 min
7.5 ml RPMI1640 + 250.000 HEK cells / ml7.324 h
7.5 ml RPMI1640 + 500.000 HEK cells / ml7.1726 h

10.08.17

Transformation of pWHE-644

- transformation in DH5-α

12.08.17

Miniprep of pWHE-644 in DH3-α

- miniprep with Zymo kit

Test digest of pWHE-644

1µl NcoI
2µl DNA
1.5µl FD-buffer 10x
10.5µl H20
Excepted bands could be observed.

13.08.17

Miniprep of CMV-VEGFR2 (pIG_138)

- 7x miniprep of CMV-VEGFR2

Test digest of CMV-VEGFR2 (pIG_138)

2µl DNA
1.5µl buffer
1µl BamHI
0.5µl H20
Only one of the expected bands could be oberserved.

13.08.17

Test digest of CMV-VEGFR2 (pIG_138)

2µl DNA
1.5µl FD-buffer
1µl SmaI
Only one of the expected bands could be oberserved.

16.08.17

pH test with Jurkat cells

- centrifuge Jurkatt cells, dilute in RPMI1640
- count cells
- incubation of Jurkat cells and lactic acid
- pH measurements after 0h, 30min, 1h and 1h30min
- 1) only RPMI1640 with cells, start pH at 7.2
- 2) RPMI1640 with cells and 100µl lactic acid, start pH at 6.8

after 0h:

cell concentration (cells/ml)pH of 1)pH of 2)
3mio7.466.81
2mio7.416.82
1.5mio7.476.86
1mio7.496.79
500k7.456.78
100k7.456.77

after 30min:

cell concentration (cells/ml)pH of 1)pH of 2)
3mio7.527.18
2mio7.517.13
1.5mio7.537.14
1mio7.527.11
500k7.547.07
100k7.557.12

after 1h:

cell concentration (cells/ml)pH of 1)pH of 2)
3mio7.487.26
2mio7.577.22
1.5mio7.607.24
1mio7.607.22
500k7.607.18
100k7.637.21

after 1h30min:

cell concentration (cells/ml)pH of 1)pH of 2)
3mio7.427.14
2mio7.557.27
1.5mio7.467.35
1mio7.627.18
500k7.517.23
100k7.597.26

16.08.17

Test digest of CMV-VEGFR2 (pIG_138)

2µl DNA
1.5µl FD-buffer
2µl BamHI
9,5µl H20

Ctla4 induction

- Jurkat cells transiently transfected with Ctla4-CFP-CMV-mCherry
- positive control: cotransfected with CMV-CFP and CMV mCherry
- add VEGF
- incubation for 24h at 37°C

17.08.17

PEI transfection of HEK cells

- CMV-CFP from iGEM
- CMV-CFP from tool box

Flow cytometry

- Ctla4-CFP-CMV-mCherry

18.08.17

BioRad electroporation

Cell lines: Jurkat
Plasmids: pIG_037, pIG_031, contransfection CMV-CFP

  1. Count the cells
  2. Transfer 1 mio. cells into falcons and centrifuge with 100g for 3 min
  3. Resuspend the cell pellet with 100 µl P3 Buffer
  4. Add 9 µg pIG17_009
  5. Transfer the mixture into cuvette
  6. BioRad setting: 250 V, 960 µF, 35 sec.
  7. Add 500 µl RPMI medium to the cells immediately after electroporation
  8. Plate the cells into 12-well plate with 2 ml Medium
  9. Over night culturing
  10. Wash the cuvettes for reusing

Calcium test

- incubation of cells at 37°C in FACS tubes for 5min - pre-FACS after 3min - add VEGF (30ng/ml, 70ng/ml) - FACS afer 7min: no signal

20.08.17

Biorad electroporation

Cell lines: Jurkat
Plasmids: pIG_034, cotransfection CMV-CFP and CMV-mCherry, negative control (no DNA)

  1. Count the cells
  2. Transfer 1 mio. cells into falcons and centrifuge with 100g for 3 min
  3. Resuspend the cell pellet with 100 µl P3 Buffer
  4. Add 6 µg pIG17_009
  5. Transfer the mixture into cuvette
  6. BioRad setting: 250 V, 960 µF, 35 sec.
  7. Add 500 µl RPMI medium to the cells immediately after electroporation
  8. Plate the cells into 12-well plate with 2 ml Medium
  9. Over night culturing
  10. Wash the cuvettes for reusing

pH tests with Jurkat

V(ges) [ml]V(RPMI1640) [ml]V(cells) [ml]c(cells) [cells/ml]
7.55.32.2250.000

- incubation for 24h

Miniprep of pIG_034

- miniprep 8x

21.08.17

sequencing of pIG_138

- plasmid: CMV-VEGFR2 (pIG_138)
- DNA concentration: 80ng/ml
- Oligo: 2µl DNA, 18µl H2O
- V(ges): 20µl

22.08.17

Miniprep of pIG_017, pIG_031, pIG_034, pIG_037

- Zymo kit

up-concentration of pIG_017, pIG_031, pIG_034, pIG_037

- add isopropanol to plasmid suspension in H2O
- -20°C for 20min
- centrifugate for 30min at maximal speed and 4°C
- remove isopropanol
- wash with EtOH (70%)
- centrifugate for 30min att maximal speed and 4°C
- remove EtOH
- open eppis to dry overnight
- eluate with H2O
Up-conentration did not work, DNA concentration decreased.

25.08.17

Miniprep of pIG_017, pIG_037

07.09.17

PEI transfection of HEK cells

used cells: HEK cells

Plasmid numbercomponent
pIG17_034pCRE-CFP-CMV-mCherry
pIG17_008 + pIG17_009CMV-CFP + CMV-mCherry
pIG17_034 + β2-receptorpCRE-CFP-CMV-mCherry + β2-receptor
no DNAnegative control
  1. Split the cells 1:5 into 10 cm plate
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

Gel extraction of M1-receptor without CFP

50 ng DNA
1 µl T4 Ligase
2 µl Buffer 10x
13 µl H2O

08.09.17

Colony PCR of M1

Buffer 10x2.5µl12.5 µl
dNTP 10 mM0.5 µl2.5 µl
Template1 µl
Primer0.5 µl2.5 µl
DreamTaq Thermo Fisher0.25 µl1.25 µl
H2O20 µl100 µl

20.08.17

pCRE induction

- treatment in 6-well-plate
- add Forskolin and β2-inductor to the cells

Cells transfected with pIG17_034 (pCRE-CFP-CMV-mCherry):

approachForskolinβ2-inductor
negative control--
old Forskolin10 µM (old)-
new Forskolin10 µM (new)-
new Forskolin100 µM new Forskolin
β2-inductor-10 µM
β2-inductor-100 µM

Cells transfected with pIG17_034 (pCRE-CFP-CMV-mCherry) and β2-receptor:

approachForskolinβ2-inductor
negative control--
β2-inductor-10 µM
β2-inductor-100 µM

10.09.17

PEI transfection of plasmids pIG17_022/23/37/86

used cells: HEK cells

Plasmid numbercomponent
pIG17_031HRE-CFP-CMV-mCherry
  1. Split the cells 1:2 into 10 cm plate
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

HRE induction

- add CoCl2 (end concentrations: 0 µM, 5 µM, 10 µM, 20 µM, 50 µM, 100 µM, 200 µM, 400 µM, 800 µM)
- fluoresence microscopy

Repetition of the Interlab Study

- transformation of DH5-α with plasmids from Kit 7 (21B, 21D, 21F, 21H, 21L, 21N, 21P)
- incubation at 37 °C

PEI transfection of HEK cells

Plasmid numbercomponent
pIG17_034 + L3 (Luciferase)pCRE-CFP-CMV-mCherry + L3
pIG17_034 + TDAG8pCRE-CFP-CMV-mCherry + TDAG8
pIG17_008 + pIG17_009CMV-CFP + CMV-mCherry

16.09.17

Pick colonies of Interlab Study

- 2 colonies per plate
- incubation at 37°C

pCRE induction in HEK cells

- plate out cells on 24-well-dish
- treatment with Forskolin

Plasmid numbercomponentForskolin treatment
pIG17_008 + pIG17_009CMV-CFP + CMV-mCherry-
pIG17_034 + TDAG8pCRE-CFP-CMV-mCherry + TDAG8+
no DNA--
no DNA-+
pIG17_034pCRE-CFP-CMV-mCherry-
pIG17_034pCRE-CFP-CMV-mCherry+

- after 10 hours: pH change to 6.5, 7.0, 7.5
- plate reader after 1h, 3h, 6h, 12h, 24h
- FACS analysis after 24h

17.09.17

PEI transfection of plasmid pIG17_031

used cells: HEK cells

Plasmid numbercomponent
pIG17_031HRE-CFP-CMV-mCherry
pIG17_008 + pIG17_009CMV-CFP + CMV-mCherry
  1. Split the cells 1:2 into 10 cm plate (on 16.09.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

18.09.17

HRE induction

- induction cancelled because cells were contaminated with bacteria

19.09.17

overnights of overnights (HRE4x, CRE4x)

20.09.17

Midiprep of cultures from overnights

PEI transfection

used cells: HEK cells

Plasmid numbercomponent
+ TDAG8CRE(4x)-CFP-CMV-mCherry + TDAG8
HRE(4x)-CFP-CMV-mCherry
pIG17_008 + pIF17_009CMV-CFP + CMV-mCherry
  1. Split the cells 1:2, transfer into 6-well-plate (on 16.09.17)
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

Filtration of DMEM, addition of FBS

- filter DMEM sterile
- add 2 % FBS
- set up pH of aliquots with HCl (4 M)
- final pH values: 6.7, 7.1, 7.4

22.09.17

induction of CRE and HRE in HEK cells

- indution in 96-wel-plates - cells transiently transfected with CRE-CFP-CMV-mCherry, add acid
- cells transiently transfected with HRE-CFP-CMV-mCherry, add CoCl2
- plate reader: no measurable induction of CFP

23.09.17

FACS analysis of HEK cells

- FACS analysis after CRE induction and HRE induction

24.09.17

Repetition of the Interlab Study

- transformation of DH5-α with plasmids from Kit 6 (20B, 20D, 20F, 20H, 20L, 20N, 20P)
- incubation at 37 °C

29.09.17

calibration of plate reader

- used cells: knockdown-cells + untransfected cells, compositions 1:0, 1:1, 1:2, 1:4, 0:1
- 96-well-plates, black, clear bottom, 100 000 cells per well
- different media: RPMI164, DMEM, DMEM and PBS (500 000 cells per well)

induction of HRE(4x)

- used cells: HEK stably transfected with HRE(4x)-CFP-CMV-mCherry, untransfected as a negative control
- induction in 24-well-plate
- add CoCl2: 0 µM, 20 µM, 40 µM, 80 µM, 100 µM, 320 µM, 640 µM
- FACS analysis

02.10.17

pH measurements with HEK cells

- 6-well-plate, 900 000 cells per well (90% confluency)
- DMEM (5 ml per well), pH set to 6.8
- after 6 h: pH=7.2

induction of HRE

- used cells: Jurkat and HEK, stably transfected with HRE(4x)-CFP-CMV-mCherry
- induction with CoCl2: 0 µM, 50 µM, 100 µM, 150 µM, 200 µM, 250 µM, 300 µM, 350 µM

pH measurements with HEK cells

- 6-well-plate, 900 000 cells per well
- DMEM (5 ml per well), pH set to 6.73

03.10.17

indcution of CRE(4x) in HEK cells

- HEK stably transfected with CRE-CFP-CMV-mCherry, induction with acid (pH 6.7, 7.4, 8.1)
- FACS measurement failed

FACS analysis of CoCl2 treated HEK cells

14.10.17

Repetition of the Interlab Study

- transformation of positive control, negative control, Device 1-6

15.10.17

pick colonies of the Interlab Study

17.10.17

cell measurements of the Interlab Study

- OD600 and fluorescence intensity of each device after 0h, 2h, 4h and 6h
- again random fluorescence values

PEI transfection of CMV-VEGFR2, SV40-TDAG8

plasmid
CMV-VEGFR2
SV40-TDAG8
  1. Split the cells 1:2 into 10 cm plate
  2. Thaw PEI reagent at RT
  3. Dilute plasmid in 1 ml serum free DMEM (2.5 µg from each plasmid)
  4. Add 15 µl PEI(1 µg/µl) to the mix while vortexing (PEI:DNA = 3:1)
  5. incubate 15 min at RT
  6. Add the mix to the culture
  7. incubate for 24 h

18.10.17

input tests in HEK and Jurkat cells

CRE(4x)-CFP-CMV-mCherry (stable), SV40-TDAG8 (transient):

conditions:

pHForskolin + IBMXother
6.5--
7.1--
7.7--
no acidForskolin (100 µM) + IBMX (100 µM)-
no acid-untransfected
no acid-without TDAG8

Ctla4(4x)-CFP-CMV-mCherry (stable), CMV-VEGFR2 (transient):

conditions:

VEGF (ng/ml)Ionomycin (µmol/l)
0-
25-
50-
100-
-1.25
-2.5
-5.0
-10.0

HRE(4x)-CFP-CMV-mCherry (stable):

conditions:

CoCl2 (µmol/ml)
50
100
200
400
600

- fluorescence measurement after 0h, 1h, 2h, 4h, 6h, 9h, 16, 24h

19.10.17

HRE, Ctla4 and HRE induction

- medium change for Ctla4 and HRE cells:
- medium change for CRE:
- fluorescence measurement after 0h, 3h, 6h

Lab Notebook Cloning

19.4.17

Miniprep of pIG17_003/4

Miniprep was performed with QIAprep Spin Miniprep Kit.

Test Digestion of pIG17_003/4

Reaction conditions

pIG17_003 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14
EcoRI-HF20U/µl1
CS-Buffer10x2
DNA264 ng/µl3

pIG17_004 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-15
EcoRI-HF20U/µl0.5
XbaI20U/µl0.5
CS-Buffer10x2
DNA334 ng/µl2

Electrophoresis failed and was repeated.

20.4.17

Miniprep of pIG17_001/2

Miniprep was performed with QIAprep Spin Miniprep Kit.

21.4.17

Test Digestion of pIG17_001/2/3/4

Reaction conditions

pIG17_001 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14
EcoRI-HF20U/µl1
CS-Buffer10x2
DNA178 ng/µl3

pIG17_002 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-15
EcoRI-HF20U/µl0.5
XbaI20U/µl0.5
CS-Buffer10x2
DNA246 ng/µl2

pIG17_003 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14
EcoRI-HF20U/µl1
CS-Buffer10x2
DNA156ng/µl3

pIG17_004 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14
EcoRI-HF20U/µl1
CS-Buffer10x2
DNA155ng/µl3

22.4.17

Miniprep of pIG17_001/2

Miniprep was performed with QIAprep Spin Miniprep Kit.

Sequencing of pIG17_001/2

sequencing returned successful

23.4.17

Miniprep of pIG17_001/2

Miniprep was performed with QIAprep Spin Miniprep Kit.
Plasmids were used for PEI transfection.

25.4.17

Miniprep of pIG17_008/9

Miniprep was performed with QIAprep Spin Miniprep Kit.

DNA concentrations:
pIG17_008: 1043 ng/µl and 167,4 ng/µl
pIG17_009: 1295,1 ng/µl and 504,3 ng/µl

6.5.17

Test Digestion of pIG17_008/9

Reaction conditions

pIG17_008 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17
ClaI20U/µl0,25
XbaI20U/µl0,25
CS-Buffer10x2
DNA896ng/µl0,5

pIG17_009 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17
PvuII20U/µl0,5
CS-Buffer10x2
DNA765ng/µl0,5

PCR of pIG17_009

pIG17_009 Total reaction volume 25µl

componentconcentrationvolume [µL]
H20-15,75
oIG17_009 (Primer fw)10µM1,25
oIG17_010 (Primer rv)10µM1,25
5x Q5 Reaction Buffer-5
dNTPs10mM0,5
Polymerase Q5 HF-0,25
DNA10ng/µl1

7.5.17

Test Digestion of pIG17_008

Reaction conditions

pIG17_008 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17
CalI20U/µl0,25
KpnI20U/µl0,25
CS-Buffer10X2
DNA798ng/µl0,5

pIG17_008 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17
PstI20U/µl0,5
CS-Buffer10x2
DNA886ng/µl0,5

pIG17_008 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17
XbaI20U/µl0,25
NdeI20U/µl0,25
CS-Buffer-2
DNAµl0,5

Gel Extraction of pIG17_009

Gel extraction was performed with QIAquick Gel Extraction Kit.

Concentration of pIG17_009: 51,5 ng/µl

9.5.17

Digestion of pIG17_002

Reaction conditions

pIG17_002 Total reaction volume 50µl

componentconcentrationvolume [µL]
H20-15
NdeI20U/µl1,5
AatII20U/µl1,5
CS-Buffer10x5
DNA2µg27

13.5.17

Gel Extraction of pIG17_002 --> SEAP and pA

Gel extraction was performed with QIAquick Gel Extraction Kit.

Concentration of pIG17_002: 84,5 ng/µl

Digestion of pIG17_001/002

Reaction conditions

pIG17_001 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13
NdeI20U/µl0,5
AatII20U/µl0,5
10x Fast Digest Green Buffer-2
DNA500ng4

undigested:

componentconcentrationvolume [µL]
H20-14
10x Fast Digest Green Buffer-2
DNA500ng4

pIG17_002 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13
NdeI20U/µl0,5
AatII20U/µl0,5
10x Fast Digest Green Buffer-2
DNA500ng4

undigested:

componentconcentrationvolume [µL]
H20-14
10x Fast Digest Green Buffer-2
DNA500ng4

PCR of pA/SEAP

pIG17_002 Total reaction volume 25µl

componentconcentrationvolume [µL]
H20-15,75
oIG17_012 (Primer fw)10µM1,25
oIG17_013 (Primer rv)10µM1,25
5x Q5 Reaction Buffer-5
dNTPs10mM0,5
Polymerase Q5 HF-0,25
DNA10ng/µl1

pIG17_002 Total reaction volume 25µl

componentconcentrationvolume [µL]
H20-15,75
oIG17_014 (Primer fw)10µM1,25
oIG17_015 (Primer rv)10µM1,25
5x Q5 Reaction Buffer-5
dNTPs10mM0,5
Polymerase Q5 HF-0,25
DNA10ng/µl1

Gel Ex of pA/SEAP

Gel extraction was performed with QIAquick Gel Extraction Kit.
Concentration of SEAP: 45,3 ng/µl
Concentration of pA: 49,1 ng/µl

15.5.17

Digestion of pIG17_002

Reaction conditions

pIG17_002 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-10
NdeI20U/µl1
AatII20U/µl1
CS-Buffer10x2
DNA105,3 ng/µl6

undigested: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-15,5
CS-Buffer-2
DNA-2,5

Because of the troubles to digest, the digestion was done for 2.5h by 37°C.

PCR of pIG17_009

pIG17_009 Total rection volume 25µl

componentconcentrationvolume [µL]
H20-15,75
oIG17_009 (Primer fw)10µM1,25
oIG17_010 (Primer rv)10µM1,25
5x Q5 Reaction Buffer-5
dNTPs10mM0,5
Polymerase Q5 HF-0,25
DNA10ng/µl1

18.5.17

Gibson Assembly of CMV, mCherry, pA and pSB1C3

pIG17_058 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,05pmol2
CMV0,05pmol1
mCherry0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

Gibson Assembly of pIG17_012, pIG17_013, pIG17_015, pIG17_016

pIG17_012 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
HRE0,05pmol1
SEAP0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

pIG17_013 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
HRE0,05pmol1
CFP0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

pIG17_015 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
CRE0,05pmol1
SEAP0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

pIG17_016 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
CRE0,05pmol1
eCFP0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

PCR of pIG17_027/028/029

PCR of extracted genomic DNA of Jurkat cells to amplify CTLA4

pIG17_027/028/029 Total rection volume 25µl

componentconcentrationvolume [µL]
H20-8
oIG17_048/049/050 (Primer fw) (1000bp/380bp/330bp)10µM1,25
oIG17_051 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl2

Annealing temperatures:
CTLA4 1000bp: 66°C
CTLA4 380bp: 64°C
CTLA4 330bp: 65°C

Gel picture



CTLA4 380bp and 330bp have the expected length. For CTLA4 1000bp we couldn't see any band on the gel.

Gel Extraction of pIG17_028/029

CTLA4 1000bp was not extracted because it couldn't be seen on the gel.
Gel extraction was performed with QIAquick Gel Extraction Kit.

19.5.17

Gibson Assembly of CMV, mCherry delta PstI, pA and pSB1C3

pIG17_058 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,05pmol2
CMV0,05pmol1
mCherry delta PstI0,05pmol1
pA0,05pmol1

Placed at 50°C for 1h

21.5.17

Subcloning of CTLA4_330/380

330 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
pJET2.150ng/µl1
DNA5ng/µl5

380 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
pJET2.150ng/µl1
DNA5ng/µl5

Sequencing of pIG17_012/13/15/16

Sequencing returned positive

22.5.17

Test digestion of mCherry and the Gibson Assembly G1.1

Digestion of the constructs was performed to test the function of the enzymes.

Reaction conditions

mCherry Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
KpnI20U/µl0,25
CS-Buffer10x2
DNA-4

undigested: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14
CS-Buffer-2
DNA-4

undigested without CS-Buffer: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-16
DNA-4

Gibson Assembly G1.1 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-12,25
HindIII20U/µl0,25
AflII20U/µl0,25
ClaI20U/µl0,25
CS-Buffer10x2
DNA-5

undigested: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13
CS-Buffer-2
DNA-5

Gel picture

Because of the lack of an AafII restriction site in the G1.1 construct there are only two bands to be seen.
All bands have the expected length and the enzymes still work.

23.5.17

Test digestion of CTLA4 380bp and 330bp

Reaction conditions

CTLA4 330 (3,4) and CTLA4 380 (1) Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-12,5
NotI20U/µl0,25
NcoI-HF20U/µl0,25
CS-Buffer-2
DNA500ng5

CTLA4 330 (1,2) and CTLA4 380 (3,4) Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,5
NotI20U/µl0,25
NcoI-HF20U/µl0,25
CS-Buffer-2
DNA500ng4

CTLA4 380 (2) Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-14,5
NotI20U/µl0,25
NcoI-HF20U/µl0,25
CS-Buffer-2
DNA500ng3

Undigested samples were done, respectively.

Gel picture


CTLA4 330bp number 1 and also number 1 of CTLA4 380bp were chosen for further procedures.

30.5.17

Obtaining pSAM200 and pMF111 form AG Weber

31.5.17

Test digestion of pSAM200/pMF111

pSAM200 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,5
XbaI20U/µl0,25
XhoI20U/µl0,25
CS-Buffer10x2
DNA170,3ng/µl4

pMF200 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,5
XbaI20U/µl0,25
XhoI20U/µl0,25
CS-Buffer10x2
DNA133,7ng/µl4

3.6.17

Midiprep of pIG17_003/082

Midiprep was performed with the Promega PureYield Plasmid Midiprep System Kit.

Miniprep of CTLA4 (330bp, 380bp)

Miniprep was performed with QIAprep Spin Miniprep Kit.

Extension PCR of CTLA4 (330bp, 380bp)

CTLA4 (330bp)
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_105 (Primer fw)10µM1,25
oIG17_106 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

CTLA4 (380bp)
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_107 (Primer fw)10µM1,25
oIG17_106 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

Annealing temperatures:
CTLA4 380bp: 59°C
CTLA4 330bp: 65°C

4.6.17

Extension PCR of CTLA4 (330bp, 380bp)

Because the extension PCR didn't work the day before, we performed another one.

CTLA4 (330bp)
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_105 (Primer fw)10µM1,25
oIG17_106 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

CTLA4 (380bp)
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_107 (Primer fw)10µM1,25
oIG17_106 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

Annealing temperatures:
CTLA4 380bp: 59°C
CTLA4 330bp: 65°C

Gel Extraction of CTLA4 (330bp, 380bp) of the extension PCR

Gel extraction was performed with QIAquick Gel Extraction Kit.

Gibson Assembly of CTLA4, GFP/SEAP, pA and BB - pIG17_019/020/022/023

CTLA4 (330bp) and GFP - pIG17_023
Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,06pmol0,75
CTLA4 (330bp)0,06pmol1
GFP0,06pmol0,5
pA0,06pmol1
H2O-1,75

CTLA4 (330bp) and SEAP - pIG17_020
Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,06pmol0,75
CTLA4 (330bp)0,06pmol1
SEAP0,06pmol0,75
pA0,06pmol1
H2O-1,5

CTLA4 (380bp) and GFP - pIG17_022
Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,06pmol0,75
CTLA4 (380bp)0,06pmol0,5
GFP0,06pmol0,5
pA0,06pmol1
H2O-2,25

CTLA4 (380bp) and SEAP - pIG17_019
Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pSB1C3 Backbone0,06pmol0,75
CTLA4 (380bp)0,06pmol0,5
SEAP0,06pmol0,75
pA0,06pmol1
H2O-2

Placed at 50°C for 1h

Transformation pIG17_019/020/022/023/030

Transformation was done with DH5alpha Z-competent cells for all CTLA4-GFP/SEAP Gibson assemblies.
pIG17_030 was done again because there were no colonies on the dish.

5.6.17

Midiprep of pIG17_004/008/009

Midiprep was performed with the Promega PureYield Plasmid Midiprep System Kit.

Gel

Because of the trouble to get a transformation of pIG17_030, the Gibson assembly and the used constructs were loaded on a gel, in order to find out where the problem lies.

Result of Gibson assembly

CTLA4 330 with GFP did growth
CTLA4 380 with GFP did growth
CTLA4 330 with SEAP did not growth
CTLA4 380 with SEAP did not growth

6.6.17

Extention PCR of LUC

Extention PCR made to get rid of unwanted the cutting site

Miniprep of CTLA4_GFP (pIG17.022, pIG17.023)

Miniprep with JenaBioscience. The yield was too poor to work with. New cultures are needed. o/n are done.

Sequencing of SEAP

SEAP construct (19, 20) are send to sequencing.

Sequencing analysis of pCRE and pHRE (pIG17.006, pIG17.007)

The results:

Pick of CTLA4 330_SEAP (pIG17.020)

Test digest of CTLA4 330 and 380 SEAP & GFP (pIG17.019, pIG17.020, pIG17.022, pIG17.023)

Construct Enzym Size Size undigested
CTLA4 330 GFP HindI II 2210bp, 925bp 3127pb
SEAP HindI II 2210pb, 1726pb3928pb
CTLA4 380 GFP HindI II2260pb, 929pb 3177pb
SEAP HindI II 2260pb, 1726pb3978pb

Transformation of HRE_SEAP (pIG17.030)

Transformation made with 5μl. Did not worked.

Test digest of Luceferase

Concentration: 462ng/μl

Volumina for digest Volumina for negative control
DNA1,1μl 1,1μl
Buffer2μl 2μl
Water16,4μl16,9μl
Enzyme 10,25μl
Enzyme 20,25μl
Total20μl 20μl

Used enzyme: 1:XbaI: 37°C, 2:NotI:37°C Buffer: NEBuffer 3.1 DNA used: 500ng

Test digest of pIG17.019, pIG17.020, pIG17.022, pIG17.023

330 GFP330 SEAP 380 GFP 330 SEAP 380 SEAP
DNA 250ng 250ng 250ng 250ng 250ng
Water
Enzyme 0,5μl 0,5μl 0,5μl 0,5μl 0,5μl
Buffer 2μl 2μl 2μl 2μl 2μl
Total20μl20μl20μl20μl20μl

On the gel: Loading dye: 5μl

Midi Prep of CMV (pIG17.008, pIG17.009)

Midiprep done with Promega PureYield™ Plasmid Midiprep System kit

1.elution2.elution
pIG17.008142,1ng/μl50,1ng/μl
pIG17.00989,3ng/μl64,1ng/μl

7.6.17

Miniprep of pIG17_019/020/022/023

Miniprep was performed with Jena Bioscience Kit.

Results

Transformation of HRE SEAP with mCherry didn't grow

Test digestof pIG17_019/020/022/023

Test diget with HindIII
DNA concentration of 500ng/μl (4μl of DNA) 10xPuffer (2μl) H2O till 20μl in the PCR tube.

GATC sequencing

3x HIF1-a with 30ng/μl with the primer oIG17_119 (3μl with 26μl H2O)

8.6.17

Trouble shooting of the Promega Midiprep kit

Extention PCR with mCherry and pIG17_012

9.6.17

Test Digestion of pIG17_019/020/022/023

Reaction conditions

pIG17_019/020: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17,5 - x
Nde I20U/µl0,25
Cla I20U/µl0,25
CS-Buffer-2
DNA500 ngx


pIG17_022/023: Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-17,5 - x
Nco I20U/µl0,25
Cla I20U/µl0,25
CS-Buffer-2
DNA500 ngx

Undigested:
Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-18 - x
CS-Buffer-2
DNA500 ngx


Incubation for 1h at 37 degrees

Gel extraction of pIG17_012 and mCherry

DNAGelQGIsopropanol
pIG17_0120,12g240μl81,16
mCherry0,08g360μl122,4μl

Midiprep of pIG17_008 and pIG17_009

2 bands on the gel : Contamination!

14.6.17

Test Digestion of SDM of LUC

SDM of LUC Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
Tango Buffer10x2
DNA151,7ng/µl4

Gibson assembly pIG17_31/34/37/86

pIG17_31 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
pIG17_0120,05pmol1
pIG17_0580,05pmol1

pIG17_34 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
pIG17_0130,05pmol1
pIG17_0580,05pmol1

pIG17_37 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
pIG17_0150,05pmol1
pIG17_0580,05pmol1

pIG17_86 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
pIG17_0160,05pmol1
pIG17_0580,05pmol1

12.6.17

Midiprep of pIG17_008/009

Midiprep was performed with the Promega Kit.

Gibson Assembly of Luciferase with SDM

Total rection volume 24µl

componentconcentrationvolume [µL]
2x Gibson MM-12
Luciferase Backbone0,06pmol7,5
PCR product 1 of Luciferase0,06pmol1
PCR product 2 of Luciferase0,06pmol2,5
PCR product 3 of Luciferase0,05pmol0,5
Water-0,5

Placed at 50°C for 1h

6.7.17

Mini Prep of HIF1 - alpha fusion proteins (pmf111/psb1c3/LUC delta BspEI)

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pmf11148,1ng/μl
psb1c3107,6ng/μl
LUC delta BspEI 289,6ng/μl

Miniprep of pIG17_003/4

Miniprep was not performed due to the fact that the overnight culture got spilled out.

PCR of HIF1 - alpha fusion proteins (psb1c3/LUC delta BspEI)

psb1c3
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_198 (Primer fw)10µM1,25
oIG17_197 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

LUC delta BspEI
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_101 (Primer fw)10µM1,25
oIG17_202 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

LUC delta BspEI
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_203 (Primer fw)10µM1,25
oIG17_100 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

17.6.17

Testdigestion of pIG17_31/34/37/86

pIG17_031 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA120,7ng/µl4

pIG17_034 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA130,5ng/µl4

pIG17_037 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA111,7ng/µl4

pIG17_087 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA101,9ng/µl4

Positive clones were send to sequencing

18.6.17

Gibson Assembly of pIG17_063/064/065

pIG17_063 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
HRE0,05pmol1
LUC0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

pIG17_064 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
CRE0,05pmol1
LUC0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

pIG17_065 Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
NFAT b.s.0,05pmol1
LUC0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

22.06.17

Test digestion of pIG17_063/064/065

pIG17_063 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA100,7ng/µl4

pIG17_064 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA120,5ng/µl4

pIG17_064 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
BspEI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA98,1ng/µl4

Positive clones were sent to sequencing

28.6.17

Digestion of pIG17_31/34/37/86 for ligation into Transferplasmid

pIG17_031 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
ClaI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA120,1ng/µl4

pIG17_034 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
ClaI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA160,8ng/µl4

pIG17_037 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
ClaI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA143,3ng/µl4

pIG17_086 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-13,75
ClaI20U/µl0,25
KpnI20U/µl0,25
Tango Buffer10x2
DNA198,5ng/µl4

Transferplasmid Total reaction volume 50µl

componentconcentrationvolume [µL]
H20-30,25
BspEI20U/µl0,5
KpnI20U/µl0,5
Tango Buffer10x2
DNA300,4ng/µl4

T4 Ligation of pIG17_31/34/37/87 into Transfer plasmid

pIG17_31 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
Transfer plasmid70ng/µl1
pIG17_03113ng/µl5

pIG17_34 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
Transfer plasmid70ng/µl1
pIG17_03415ng/µl5

pIG17_37 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
Transfer plasmid70ng/µl1
pIG17_03713ng/µl5

pIG17_87 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-2
T4 Ligase -2
T4 Ligase Reaction buffer2x10
Transfer plasmid70 ng/µl1
pIG17_0875ng/µl5

2.7.17

Gibson Assembly of HRE-GFP-pA-SV40-Neomycin/Zeozin

HRE-GFP-pA-SV40-Neomycin Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
pIg17_0130,05pmol1
SV400,05pmol1
Neomycin0,05pmol1
pA0,05pmol1

HRE-GFP-pA-SV40-Zeozinin Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
pIg17_0130,05pmol1
SV400,05pmol1
Zeocin0,05pmol1
pA0,05pmol1

03.07.17

Gibson assembly of SV40-TetR-pA

HRE-GFP-pA-SV40-Neomycin Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol2
SV400,05pmol1
VP16-TetR0,05pmol1
pA0,05pmol1

7.7.17

Mini Prep of pIG17_031/034/086/119

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pIG17.03146,6ng/μl
pIG17.03445,7ng/μl
pIG17.08647,9ng/μl
pIG17.119390,8ng/μl

PCR of HIF1 - alpha fusion proteins (pMF111/pSB1C3(standard part we got from iGEM))

pMF111 #1
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_177 (Primer fw)10µM1,25
oIG17_211 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

pMF111 #3
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_150 (Primer fw)10µM1,25
oIG17_176 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

pSB1C3 #2
Total rection volume 25µl

componentconcentrationvolume [µL]
H20-9
oIG17_198 (Primer fw)10µM1,25
oIG17_197 (Primer rv)10µM1,25
5x Q5 MM-12,5
DNA10ng/µl1

Gel picture

Midiprep of 31, 34, 86, 119

Midiprep with Promega Midiprep kit

pIG17_0316,0ng/μl
pIG17_0344,4ng/μl
pIG17_086 9,4ng/μl 6,9ng/μl
pIG17_119 156ng/μl 167ng/μl

8.7.17

Gibson Assembly of TetO/HRE/CRE/NFAT b.s.-HIF/HIF-LUC-CMV-mCherry

TetO-HIF-LUC-pA-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-6
pcDNA3.10,05pmol1
TetO0,05pmol1
HIF0,05pmol1
LUC0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

HRE-HIF-pA-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
HRE0,05pmol1
HIF0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

CRE-HIF-pA-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
CRE0,05pmol1
HIF0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

NFAT bs 330-HIF-pA-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
NFAT b.s. 3300,05pmol1
HIF0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

NFAT bs 380-HIF-pA-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
pcDNA3.10,05pmol1
NFAT b.s. 3800,05pmol1
HIF0,05pmol1
pA0,05pmol1
pIG17_0580,05pmol1

9.7.17

Bacterial Glycerol Stocks for Long-term Storage of Plasmids

  • pIG17_037
  • pIG17_086
  • pIG17_119

Mini Prep of pIG17_118/120/121

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pIG17_11851,6ng/μl
pIG17_120 #150ng/μl
pIG17_120 #256ng/μl
pIG17_121 #1208,3ng/μl
pIG17_121 #256ng/μl

10.7.17

Mini Prep of pIG17_31 zeomycin and neomycin/pIG17_097

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pIG17_031 zeo107,9ng/μl
pIG17_031 neo25,7ng/μl
pIG17_097 1 #130,8ng/μl
pIG17_097 1 #234,2ng/μl
pIG17_097 2 #138,4ng/μl
pIG17_097 2 #240,0ng/μl
pIG17_097 2 #332,3ng/μl

12.7.17

Mini Prep of TetO-Luc-HIF/TetO-HIF-Luc/pIG17_031 TetR

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pIG17_031 TetR22,0ng/μl
TetO-Luc-HIF #132,4ng/μl
TetO-HIF-Luc #1174,5ng/μl

13.7.17

Mini Prep of pCRE-HIF/CTLA4-HIF

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pCRE-HIF #328,3ng/μl
pCRE-HIF #230,1ng/μl
pCRE-HIF #130,4ng/μl
CTLA4-HIF(380) #132,1ng/μl
CTLA4-HIF(380) #233,1ng/μl
CTLA4-HIF(380) #332,8ng/μl
CTLA4-HIF(330) #229,9ng/μl

15.7.17

Ligation of HRE*4/CRE*4/NFAT bs*4 into pIG17_031

HRE*4 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-6
T4 Ligase -2
T4 Ligase Reaction buffer2x10
pIG17_03165ng/µl1
HRE*410ng/µl1

CRE*4 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-6
T4 Ligase -2
T4 Ligase Reaction buffer2x10
pIG17_03165ng/µl1
CRE*410ng/µl1

NFAT bs*4 Total reaction volume 20µl

componentconcentrationvolume [µL]
H20-6
T4 Ligase -2
T4 Ligase Reaction buffer2x10
pIG17_03165ng/µl1
NFAT bs*410ng/µl1

16.7.17

Gibson Assembly of HRE*4/CRE*4/NFAT bs*4-CFP-CMV-mCherry

HRE*4-CFP-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
Transfer vector0,05pmol2
HRE*40,05pmol1
CFP0,05pmol1
pIG17_0580,05pmol1

CRE*4-CFP-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
Transfer vector0,05pmol2
CRE*40,05pmol1
CFP0,05pmol1
pIG17_0580,05pmol1

NFAT bs*4-CFP-CMV-mCherry Total rection volume 10µl

componentconcentrationvolume [µL]
2x Gibson MM-5
Transfer vector0,05pmol2
NFAT bs*40,05pmol1
CFP0,05pmol1
pIG17_0580,05pmol1

19.7.17

Mini Prep of pCRE-HIF/CTLA4-HIF/pIG17_096

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentration
pCRE-HIF26,7ng/μl
pCRE-HIF187,7ng/μl
pCRE-HIF153,0ng/μl
pCRE-HIF102,0ng/μl
CTLA4-HIF(380)32,4ng/μl
CTLA4-HIF(380)340,1ng/μl
CTLA4-HIF(380)273,5ng/μl
CTLA4-HIF(380)70,4ng/μl
CTLA4-HIF(380)88,81ng/μl
CTLA4-HIF(380)59,9ng/μl
CTLA4-HIF(330)29,0ng/μl
CTLA4-HIF(330)315,2ng/μl
CTLA4-HIF(330)98,8ng/μl
CTLA4-HIF(330)344,6ng/μl
CTLA4-HIF(330)135,1ng/μl
pIG17_096342,8ng/μl
pIG17_09631,3ng/μl
pIG17_09671,3ng/μl
pIG17_09699,7ng/μl
pIG17_09655,8ng/μl

Sequencing of pCRE-HIF/CTLA4-HIF 330/CTLA4-HIF 330/pIG17_096/pIG17_097/pIG17_118/pIG17_120

plasmid number primer
pCRE-HIFoIG17_166/018/164/174/175/119
CTLA4-HIF(380)oIG17_166/018/164/174/175/119
CTLA4-HIF(330)oIG17_166/018/164/174/175/119
pIG17_096oIG17_174/175/169/170/018
pIG17_097oIG17_054
pIG17_118oIG17_019
pIG17_120oIG17_019

21.7.17

Mini Prep of HRE x Mult-GFP-CMV-mCherry/CRE x Mult-GFP-CMV-mCherry/HRE ecFP zeo/TetR VP16 neo

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentrationcurve
HRE x Mult-GFP-CMV-mCherry #139,4ng/μl
HRE x Mult-GFP-CMV-mCherry #228,9ng/μl
HRE x Mult-GFP-CMV-mCherry #328,9ng/μl
HRE x Mult-GFP-CMV-mCherry #444,6ng/μl
CRE x Mult-GFP-CMV-mCherry #118,9ng/μl
CRE x Mult-GFP-CMV-mCherry #249,8ng/μl
CRE x Mult-GFP-CMV-mCherry #320,9ng/μl
CRE x Mult-GFP-CMV-mCherry #425,2ng/μl
HRE ecFP zeo #135,2ng/μl
HRE ecFP zeo #226,4ng/μl
HRE ecFP zeo #336,2ng/μl
HRE ecFP zeo #417,3ng/μl
TetR VP16 neo #121,7ng/μl
TetR VP16 neo #230,4ng/μl
TetR VP16 neo #366,7ng/μl
TetR VP16 neo #428,1ng/μl
  • we also went upstairs to check our concentrations with Toolbox Nanodrop but there wasn't much difference
  • Denis asked Nicole if she can do a Miniprep for us with her kit
  • Nicole suggested to try to use the buffer instead of water to see if it will change something

24.7.17

Mini Prep of pIG17_012/013/015/016

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit

concentrationcurve
pIG17_012187,1ng/μl
pIG17_01353,9ng/μl
pIG17_01549,1ng/μl
pIG17_01626,1ng/μl

29.7.17

Mini Prep of pIG17_003/031/119/

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit (in 40μl Wasser eluiert)

concentration
pIG17_00316,9ng/μl
pIG17_00390,8ng/μl
pIG17_003144,0ng/μl
pIG17_004154,9ng/μl
pIG17_004280,7ng/μl
pIG17_031541,1ng/μl (!)
pIG17_031257,1ng/μl (!)
pIG17_031336,1ng/μl (!)
pIG17_03423,0ng/μl (!)
pIG17_119318,6ng/μl (!)
pIG17_11919,3ng/μl
pIG17_11931,9ng/μl
pIG17_11912,1ng/μl
pIG17_11953,2ng/μl
pIG17_119314,0ng/μl (!)
HRE GFP109,9ng/μl
HRE GFP43,9ng/μl
HRE GFP89,9ng/μl
HRE GFP147,1ng/μl
HRE GFP104,3ng/μl
HRE GFP67,9ng/μl (!)
HRE GFP125,2ng/μl
HRE GFP153,1ng/μl
HRE GFP318,2ng/μl
HRE GFP294,9ng/μl
HRE GFP148,6ng/μl
HRE GFP82,1ng/μl
HRE GFP423,9ng/μl (!)
HRE GFP427,2ng/μl (!)

30.7.17

Mini Prep of pIG17_503/Tet-GFP

Miniprep done with Promega PureYield™ Plasmid Miniprep System kit (in 40μl Wasser eluiert)

concentrationcurve
pIG17_503242,6ng/μl
Tet-GFP255,1ng/μl