Biomod/2013/Todai: Difference between revisions

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     <h1 class="title"><a name="Oligomeric Cell Killer">&nbsp;Oligomeric Cell Killer</a></h1>
     <h1 class="title"><a name="Oligomeric Cell Killer">&nbsp;Oligomeric Cell  
     <p class="paragraph">Team Todai nanORFEVRE tried to make cancer-specific pore-forming DNA origami drug.</p>
 
     <p class="paragraph">We named this DNA nanostructure "Oligomeric Cell Killer".</p>   
Killer</a></h1>
     <p class="paragraph">Team Todai nanORFEVRE tried to make cancer-specific  
 
pore-forming DNA origami drug.</p>
     <p class="paragraph">We named this DNA nanostructure "Oligomeric Cell  
 
Killer".</p>   
   </article>
   </article>


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       <h1 class="title"><a name="Abstract">&nbsp;Abstract</a></h1>
       <h1 class="title"><a name="Abstract">&nbsp;Abstract</a></h1>
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   <p class="paragraph">
   <p class="paragraph">
Cancer is one of the most common diseases in the world, causing about 13 percent of the all human deaths worldwide (WHO 2007). Chemotherapy is a popular medical treatments for the cancer, however, it often attacks normal cells in addition to the cancer cells, leading severe side effects. Recently the drug delivery system (DDS) has been developed to improve cancer-specificity, but it isn't easy to optimize delivery system for each drug.
Cancer is one of the most common diseases in the world. Chemotherapy is a  
 
popular treatment for cancer, however, it attacks normal cells in addition to  
 
cancer cells, causing severe side effects in some cases. Recently drug  
 
delivery system (DDS) has developed to improve cancer-specificity, but it is
 
difficult to optimize delivery system for each drug.  
   </p>
   </p>
    <br>
   <p class="paragraph">
   <p class="paragraph">
Here, we propose a “drug delivery system (DDS) free" anti-cancer drug: <span style="color:#e00000;">cancer-specific pore-forming DNA origami drug</span>. Inspired by a toxin produced by an animal and a mechanism existing in the human immune system, we designed DNA origami subunit, which coordinately kills a cell. The process of killing is as follows. 1) Subunits stick in the cell membrane with cholesterol site. 2) Then they oligomerize so that they form a pore on the membrane. 3) This pore disrupts the phospholipid bilayer of the cells, inducing cell lysis and death of the cancer cell. Furthermore, recent advancement of DNA nano technology, allowing our DNA drug to compute in <i>in situ</i>, may improve the cancer-specificity.
Here, we tried to make a prototype of <span style="color:#e00000">oligomeric
  </p>
 
  <p class="paragraph">
cancer specific pore-forming DNA origami</span>, termed  <span
  Our general idea can be divided into two steps, <span style="color:#e00000">cancer-recognition</span> and <span style="color:#e00000">killing</span>. Since DNA computing circuit for recognition has already reported, we set our summer goal of the biomod 2013 to <span style="color:#e00000">develop pore-forming DNA origami for the killing system</span>.  
 
style="color:#e00000"><b>Oligomeric Cell Killer (OCK)</b></span>, which might
 
be a side effects free anti-cancer drug.
   </p>
   </p>
   <br>
   <br>
  <p class="paragraph">
  <p class="paragraph">
In Japan meeting for biomod2013, we will report the interaction between DNA nanostructures and cell membrane and several methods for oligomerizing.
OCKs exist in a monomeric form in solution and penetrate into the cell
 
randomly. Cancer specific molecules on the membrane of cancer cell trigger
 
the oligomerization of OCK, resulting in the pore-forming and <span
 
style="color:#e00000">subsequent death of cancer cell</span>. In contrast,  
 
the OCKs keep monomeric form in the normal cell, allowing <span
 
style="color:#e00000">the normal cell to keep alive</span>.
Our study might be the basis for cancer specific drug.  
   </p>
   </p>
   <br>
   <br>


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Latest revision as of 17:45, 26 October 2013

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    <li><a href="http://openwetware.org/wiki/Biomod/2013/Todai">Home</a>
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    <li><a href="http://openwetware.org/wiki/Biomod/2013/Todai/Project">Project</a>
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  <h1 class="big-title"><a name="Home">&nbsp;Home</a></h1>
  <br>


  <article>
   <h1 class="title"><a name="Oligomeric Cell Killer">&nbsp;Oligomeric Cell 

Killer</a></h1>

    <p class="paragraph">Team Todai nanORFEVRE tried to make cancer-specific 

pore-forming DNA origami drug.</p>

   <p class="paragraph">We named this DNA nanostructure "Oligomeric Cell 

Killer".</p>

  </article>
  <br>
  <article>
     <h1 class="title"><a name="Abstract">&nbsp;Abstract</a></h1>
     <br>
  <center><iframe width="480" height="360" src="//www.youtube.com/embed/E4RaZ41hJ7w" frameborder="0" allowfullscreen></iframe>
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<br>

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  <img src="http://openwetware.org/images/4/46/Todai_home.png" width="450px" 

height="350px" >

  </center>
  </figure>
  <br>
  <p class="paragraph">

Cancer is one of the most common diseases in the world. Chemotherapy is a

popular treatment for cancer, however, it attacks normal cells in addition to

cancer cells, causing severe side effects in some cases. Recently drug

delivery system (DDS) has developed to improve cancer-specificity, but it is

difficult to optimize delivery system for each drug.

  </p>
   <br>
 <p class="paragraph">

Here, we tried to make a prototype of <span style="color:#e00000">oligomeric

cancer specific pore-forming DNA origami</span>, termed <span

style="color:#e00000"><b>Oligomeric Cell Killer (OCK)</b></span>, which might

be a side effects free anti-cancer drug.

  </p>
  <br>
 <p class="paragraph">

OCKs exist in a monomeric form in solution and penetrate into the cell

randomly. Cancer specific molecules on the membrane of cancer cell trigger

the oligomerization of OCK, resulting in the pore-forming and <span

style="color:#e00000">subsequent death of cancer cell</span>. In contrast,

the OCKs keep monomeric form in the normal cell, allowing <span

style="color:#e00000">the normal cell to keep alive</span>.

Our study might be the basis for cancer specific drug. 
  </p>
  <br>


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