Difference between revisions of "Team:Evry"

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     <h1>Welcome!</h1> <!--  to our project homepage -->
 
     <h1>Welcome!</h1> <!--  to our project homepage -->
 
     </div>
 
     </div>
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<section class="page-section">
 
<h2>Abstract</h2>
 
<h2>Abstract</h2>
 
<p class="lead">Reshaping immunotherapy landscape.</p>
 
<p class="lead">Reshaping immunotherapy landscape.</p>
 
<p class="text-justify">Cancer thrives by preventing the immune system from targeting tumor cells. While current immunotherapies use dendritic cells to activate T-cells towards specific tumor antigens, they remain expensive and of variable efficiency against tumor immunosuppressive environment. To address these issues, our team mainly focused on engineering a <em>S. cerevisiae</em> yeast immunotherapy that was ultimately tested <strong>in vivo</strong> on mice presenting melanoma.</p>  
 
<p class="text-justify">Cancer thrives by preventing the immune system from targeting tumor cells. While current immunotherapies use dendritic cells to activate T-cells towards specific tumor antigens, they remain expensive and of variable efficiency against tumor immunosuppressive environment. To address these issues, our team mainly focused on engineering a <em>S. cerevisiae</em> yeast immunotherapy that was ultimately tested <strong>in vivo</strong> on mice presenting melanoma.</p>  
 
<p class="text-justify">Three complementary strategies were combined: First, in order to modulate the tumor environment, yeast secreting immune modulators, GM-CSF and IFNgamma, were encapsulated into alginate beads and injected in tumors. Secondly, to break the immune tolerance against cancer cells, T4 and T8 lymphocytes were elicited by a yeast antigen display system. Last, to deliver cytotoxic compounds solely in the tumor environment, a yeast hypoxia bio-sensor was designed. A side project consisted in engineering E. coli to drive MAIT lymphocytes against cancer cells instead of their original targets, parasitized cells.</p>
 
<p class="text-justify">Three complementary strategies were combined: First, in order to modulate the tumor environment, yeast secreting immune modulators, GM-CSF and IFNgamma, were encapsulated into alginate beads and injected in tumors. Secondly, to break the immune tolerance against cancer cells, T4 and T8 lymphocytes were elicited by a yeast antigen display system. Last, to deliver cytotoxic compounds solely in the tumor environment, a yeast hypoxia bio-sensor was designed. A side project consisted in engineering E. coli to drive MAIT lymphocytes against cancer cells instead of their original targets, parasitized cells.</p>
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</section>
 
<!--div id="img-div"><img src="https://static.igem.org/mediawiki/2015/8/8a/Shcema_immune_syst.jpg" class="img-rounded img-responsive"></img></div-->
 
<!--div id="img-div"><img src="https://static.igem.org/mediawiki/2015/8/8a/Shcema_immune_syst.jpg" class="img-rounded img-responsive"></img></div-->
 
<!--p class="lead">Dendritic cells can orchestrate the immune response. By acting on them using engineered micro-organisms,
 
<!--p class="lead">Dendritic cells can orchestrate the immune response. By acting on them using engineered micro-organisms,

Revision as of 20:40, 31 August 2015

Abstract

Reshaping immunotherapy landscape.

Cancer thrives by preventing the immune system from targeting tumor cells. While current immunotherapies use dendritic cells to activate T-cells towards specific tumor antigens, they remain expensive and of variable efficiency against tumor immunosuppressive environment. To address these issues, our team mainly focused on engineering a S. cerevisiae yeast immunotherapy that was ultimately tested in vivo on mice presenting melanoma.

Three complementary strategies were combined: First, in order to modulate the tumor environment, yeast secreting immune modulators, GM-CSF and IFNgamma, were encapsulated into alginate beads and injected in tumors. Secondly, to break the immune tolerance against cancer cells, T4 and T8 lymphocytes were elicited by a yeast antigen display system. Last, to deliver cytotoxic compounds solely in the tumor environment, a yeast hypoxia bio-sensor was designed. A side project consisted in engineering E. coli to drive MAIT lymphocytes against cancer cells instead of their original targets, parasitized cells.

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