Difference between revisions of "Team:UCLouvain/OurProject/Overview"

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<div class="big-title montserrat-text uppercase">Our Project</div>
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<div class="small-title montserrat-text uppercase">Overview of our Project</div>
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<span>the issue</span>
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<p>Although sunburns seem  quite ordinary to get tanned , it’s a real disaster for our skin… Indeed, for several years, our exposure  to UV rays has increased and scientists have noticed an upward trend in risks of developing skin cancers.</p>
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<p>Every year in Belgium we count approximately <b>2.000 new cases of melanoma</b> (CHU de Liège).</p>
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<p>Between 2005 and 2015 in Belgium, there has been a <b>77% increase of new cases of melanoma</b> (Belgian Cancer Registry).</p>
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<img src="https://static.igem.org/mediawiki/2017/8/8b/UCLouvain_Overview3.png" class="in_text_img" style="width: 500px;">
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<p>According to the WHO, there are  globally around <b>2 to 3 million skin cancers</b> each year, and around <b>132.000 melanoma</b> (World Health Organization).</p>
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<p>One American out of  five will develop a skin cancer in his lifetime. We are all affected by this dangerous problem, but some people with specific characteristics are much more concerned.</p>
 
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<p>PARAGRAPH</p>
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<span>bactasun</span>
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<p>That’s the reason why we, the 2017 UCLouvainiGEM Team, are participating in the international competition of synthetic biology, iGEM.</p>
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<p>Our innovative solution is BactaSun, a bio-badge changing color when exposed to UV rays.Its color gradually switches when exposed to UV rays. In a nutshell, you are quickly warned when you have to protect your skin.</p>
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<img src="https://static.igem.org/mediawiki/2017/9/9d/UCLouvain_Overview1.png" class="in_text_img" style="width: 500px;">
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<p>Actually, we have developed <b>two ways</b> to achieve our goal. Both are using a photocaged amino acid, the ONB-Tyrosine. The cage, the ONB group, is cleaved when exposed to UV rays, which releases the tyrosine amino acid, making it available for protein synthesis (see on the figure below).</p>
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<img src="https://static.igem.org/mediawiki/2017/a/a3/UCLouvain_Overview2.png" class="in_text_img" style="width: 500px;">
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<span>1. Auxotrophic</span>
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<p>Using the iGEM’s biobricks, we construct a plasmid containing a gene coding for a RFP. Arabinose activates this gene, thanks to its pBAD promoter.</p>
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<p>On the other hand, we knocked out (KO) a gene required for tyrosine synthesis in E. coli, TyrA. A medium containing photo-caged tyrosine (Ortho Nitro Benzyl-Tyrosine) is used to grow the bacteria: this special tyrosine is sensitive to UV’s, and will be only available for our KO E. coli once uncaged.</p>
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<a href="#" class="btn blue" style="float:right;"><span>learn more</span></a>
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<span>2. Com R/S</span>
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<p>ComS is a small peptide imported into the cytoplasm by the cell. Interacting with ComR, it will form a complex, that acts as a gene activator.</p>
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<p>ComS contains some tyrosine. Thanks to a collaboration with…, we synthetize ComS using the photo-caged Tyrosine instead of Tyrosine. This new ComS can’t interact with ComR, unless its Tyrosine have been uncaged by UV’s.</p>
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<p>The complex of ComR/ComS will simply activate a RFP gene, creating as previously a system responding to UV’s.</p>
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<a href="#" class="btn blue" style="float:right;"><span>learn more</span></a>
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<li style="font-style:italic;color:#999999;">Belgian Cancer Registry, n.d. Belgian Cancer Registry — Tableaux sur base annuelle [WWW Document]. URL http://www.kankerregister.org/Statistiques_tableaux%20annuelle (accessed 10.24.17).</li>
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<li style="font-style:italic;color:#999999;">CHU de Liège, n.d. Le mélanome [WWW Document]. URL http://www.chu.ulg.ac.be/jcms/c_8187263/le-melanome (accessed 10.24.17).</li>
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<li style="font-style:italic;color:#999999;">World Health Organization, n.d. WHO | Skin cancers [WWW Document]. WHO. URL http://www.who.int/uv/faq/skincancer/en/ (accessed 10.24.17).</li>
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Revision as of 00:06, 31 October 2017

iGEM UCLouvain Team iGEM UCLouvain Team

Our Project
Overview of our Project
the issue

Although sunburns seem quite ordinary to get tanned , it’s a real disaster for our skin… Indeed, for several years, our exposure to UV rays has increased and scientists have noticed an upward trend in risks of developing skin cancers.

Every year in Belgium we count approximately 2.000 new cases of melanoma (CHU de Liège).

Between 2005 and 2015 in Belgium, there has been a 77% increase of new cases of melanoma (Belgian Cancer Registry).

According to the WHO, there are globally around 2 to 3 million skin cancers each year, and around 132.000 melanoma (World Health Organization).

One American out of five will develop a skin cancer in his lifetime. We are all affected by this dangerous problem, but some people with specific characteristics are much more concerned.

bactasun

That’s the reason why we, the 2017 UCLouvainiGEM Team, are participating in the international competition of synthetic biology, iGEM.

Our innovative solution is BactaSun, a bio-badge changing color when exposed to UV rays.Its color gradually switches when exposed to UV rays. In a nutshell, you are quickly warned when you have to protect your skin.

Actually, we have developed two ways to achieve our goal. Both are using a photocaged amino acid, the ONB-Tyrosine. The cage, the ONB group, is cleaved when exposed to UV rays, which releases the tyrosine amino acid, making it available for protein synthesis (see on the figure below).

1. Auxotrophic

Using the iGEM’s biobricks, we construct a plasmid containing a gene coding for a RFP. Arabinose activates this gene, thanks to its pBAD promoter.

On the other hand, we knocked out (KO) a gene required for tyrosine synthesis in E. coli, TyrA. A medium containing photo-caged tyrosine (Ortho Nitro Benzyl-Tyrosine) is used to grow the bacteria: this special tyrosine is sensitive to UV’s, and will be only available for our KO E. coli once uncaged.

learn more
2. Com R/S

ComS is a small peptide imported into the cytoplasm by the cell. Interacting with ComR, it will form a complex, that acts as a gene activator.

ComS contains some tyrosine. Thanks to a collaboration with…, we synthetize ComS using the photo-caged Tyrosine instead of Tyrosine. This new ComS can’t interact with ComR, unless its Tyrosine have been uncaged by UV’s.

The complex of ComR/ComS will simply activate a RFP gene, creating as previously a system responding to UV’s.

learn more
  • Belgian Cancer Registry, n.d. Belgian Cancer Registry — Tableaux sur base annuelle [WWW Document]. URL http://www.kankerregister.org/Statistiques_tableaux%20annuelle (accessed 10.24.17).
  • CHU de Liège, n.d. Le mélanome [WWW Document]. URL http://www.chu.ulg.ac.be/jcms/c_8187263/le-melanome (accessed 10.24.17).
  • World Health Organization, n.d. WHO | Skin cancers [WWW Document]. WHO. URL http://www.who.int/uv/faq/skincancer/en/ (accessed 10.24.17).
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