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            <li><a href="http://openwetware.org/wiki/Biomod/2013/BITS" >Home</a></li></u1>
 
            <li><a href="http://openwetware.org/wiki/Biomod/2013/BITS/background" >Background</a></li>
 
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<li><a href="http://openwetware.org/wiki/Biomod/2013/BITS/design">Design</a></li>
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            <li><a href="http://openwetware.org/wiki/Biomod/2013/BITS/notebook">Lab Notes</a></li>
                                       
 
 
            <li><a href="http://openwetware.org/wiki/Biomod/2013/BITS/team">Team</a></li>
 
 
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  <h1 class="title">Biomimetics at nanoscale: DNA origami to deliver IRES aptamers using HCV as a template</h1>
 
<div class="line"></div>
 
<iframe width="560" height="315" align:center src="#" frameborder="0" allowfullscreen></iframe>
 
<div class="line"></div>
<h2>Abstract</h2>
<div class="intro">With its worldwide distribution, Hepatitis C Virus (HCV) infects about 3-4 million people every year of which the chronically infected ones are at a
 
risk of developing liver cirrhosis, hepatic failure or hepatocellular carcinoma. The limited availability and poor tolerance towards antiviral therapy and interferon
 
with ribavirin (nucleoside inhibitor) demands a different approach towards targeting the HCV infection. Research indicates that the HCV genome translation is under the
 
control of the Internal Ribosomal Entry Site (IRES) which mediates cap-independent internal initiation of HCV polyprotein translation thereby making it a
 
quintessential target to halt and thereby curb the infection. Nucleic acid ligands generated using SELEX (Systematic Evolution of Ligands by EXponential enrichment)
 
called aptamers, are the recent class of molecules showing immense potential to be crafted for binding to multiple different targets. First proposed by Seeman and
 
started by Rothemund, DNA origami is based on the principle that a long ssDNA scaffold can be molded into any desired shape using staples. With this method of
 
tailoring DNA nanostructures, the self assembling property of nucleic acids would be exploited for the delivery of IRES specific aptamers to the HCV infected cells. We
 
designed a cylindrical nanostructure mimicking HCV by attaching E1-E2 conjugate peptide sequences, facilitating the entry via endosomal pathway; and by using pH
 
sensitive detachable lids to release the IRES aptamers packed inside the nanostructure to the infected cells. The aptamer based silencing of viral translation will in
 
turn prevent the assembly of new viroids and serve as a mechanism to control the HCV infection.</div>
   
   
     
   
   
       
   
 
   
     
   
 
<div class="line"></div>
 
   
         
   
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Revision as of 14:25, 13 October 2013

[[<!DOCTYPE HTML>

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            <li><a href="http://openwetware.org/wiki/Biomod/2013/BITS" >Home</a></li></u1>
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 <h1 class="title">Biomimetics at nanoscale: DNA origami to deliver IRES aptamers using HCV as a template</h1>

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<h2>Abstract</h2>

<div class="intro">With its worldwide distribution, Hepatitis C Virus (HCV) infects about 3-4 million people every year of which the chronically infected ones are at a

risk of developing liver cirrhosis, hepatic failure or hepatocellular carcinoma. The limited availability and poor tolerance towards antiviral therapy and interferon

with ribavirin (nucleoside inhibitor) demands a different approach towards targeting the HCV infection. Research indicates that the HCV genome translation is under the

control of the Internal Ribosomal Entry Site (IRES) which mediates cap-independent internal initiation of HCV polyprotein translation thereby making it a

quintessential target to halt and thereby curb the infection. Nucleic acid ligands generated using SELEX (Systematic Evolution of Ligands by EXponential enrichment)

called aptamers, are the recent class of molecules showing immense potential to be crafted for binding to multiple different targets. First proposed by Seeman and

started by Rothemund, DNA origami is based on the principle that a long ssDNA scaffold can be molded into any desired shape using staples. With this method of

tailoring DNA nanostructures, the self assembling property of nucleic acids would be exploited for the delivery of IRES specific aptamers to the HCV infected cells. We

designed a cylindrical nanostructure mimicking HCV by attaching E1-E2 conjugate peptide sequences, facilitating the entry via endosomal pathway; and by using pH

sensitive detachable lids to release the IRES aptamers packed inside the nanostructure to the infected cells. The aptamer based silencing of viral translation will in

turn prevent the assembly of new viroids and serve as a mechanism to control the HCV infection.</div>








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