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	<title>Comments on: Merck abandons HIV vaccine trials</title>
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	<link>http://www.senduq.com/2007/merck-abandons-hiv-vaccine-trials/</link>
	<description>mind entropy of the ethiofrican</description>
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		<title>By: Dinich</title>
		<link>http://www.senduq.com/2007/merck-abandons-hiv-vaccine-trials/comment-page-1/#comment-471</link>
		<dc:creator>Dinich</dc:creator>
		<pubDate>Thu, 30 Apr 2009 15:17:14 +0000</pubDate>
		<guid isPermaLink="false">http://senduq.wordpress.com/2007/09/26/merck-abandons-hiv-vaccine-trials/#comment-471</guid>
		<description>I never never trust those drug companies.  

They are under a lot of pressure to make HIV/AIDS medication cheaper because the vast majority of HIV/AIDS patients are in Africa and other developing countries around the world.   Those people can&#039;t afford to buy those medications and that is what kills the motivation of these drug companies to work on finding a solution.

At the end of the day,  these companies&#039; existence is determined by the money they make.  They are under a lot of political and moral pressure to provide medications they produce to african countries for free or a cheap price.  Something is missing in the whole picture.  May be government funding,  I dunno.

Right now,  no one seems to have the incentive to solve this problem except the poor countries and of course organization like WHO,  who don&#039;t really have much power to do anything.

The Research facilities,  the money, the expertise etc...are in the hands of those big companies.  Unfortunately,  the motivations seems to be missing.

God help us</description>
		<content:encoded><![CDATA[<p>I never never trust those drug companies.  </p>
<p>They are under a lot of pressure to make HIV/AIDS medication cheaper because the vast majority of HIV/AIDS patients are in Africa and other developing countries around the world.   Those people can&#8217;t afford to buy those medications and that is what kills the motivation of these drug companies to work on finding a solution.</p>
<p>At the end of the day,  these companies&#8217; existence is determined by the money they make.  They are under a lot of political and moral pressure to provide medications they produce to african countries for free or a cheap price.  Something is missing in the whole picture.  May be government funding,  I dunno.</p>
<p>Right now,  no one seems to have the incentive to solve this problem except the poor countries and of course organization like WHO,  who don&#8217;t really have much power to do anything.</p>
<p>The Research facilities,  the money, the expertise etc&#8230;are in the hands of those big companies.  Unfortunately,  the motivations seems to be missing.</p>
<p>God help us</p>
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		<title>By: Fausto Intilla</title>
		<link>http://www.senduq.com/2007/merck-abandons-hiv-vaccine-trials/comment-page-1/#comment-77</link>
		<dc:creator>Fausto Intilla</dc:creator>
		<pubDate>Wed, 17 Oct 2007 19:25:30 +0000</pubDate>
		<guid isPermaLink="false">http://senduq.wordpress.com/2007/09/26/merck-abandons-hiv-vaccine-trials/#comment-77</guid>
		<description>Source: http://www.sciencedaily.com/releases/2007/10/071012080135.htm

Science Daily — The search for a vaccination against HIV has been in progress since 1984, with very little success. Traditional methods used for identifying potential cellular targets can be very costly and time-consuming.
The key to creating a vaccination lies in knowing which parts of the pathogen to target with which antibodies. A new study by David Heckerman and colleagues from Massachusetts General Hospital, publishing in PLoS Computational Biology, has come up with a way to match pathogens to their antibodies.
At the core of the human immune response is the train-to-kill mechanism in which specialized immune cells are sensitized to recognize small peptides from foreign pathogens (e.g., HIV). Following this sensitization, these cells are then activated to kill cells that display this same peptide. However, for sensitization and killing to occur, the pathogen peptide must be &quot;paired up&quot; with one of the infected person&#039;s other specialized immune molecules--an HLA (human leukocyte antigen) molecule. The way in which pathogen peptides interact with these HLA molecules defines if and how an immune response will be generated.
Heckerman&#039;s model uses ELISpot assays to identify HLA-restricted epitopes, and which HLA alleles are responsible for which reactions towards which pathogens. The data generated about the immune response to pathogens fills in missing information from previous studies, and can be used to solve a variety of similar problems.
The model was applied to data from donors with HIV, and made 12 correct predictions out of 16. This study, says David Heckerman, has &quot;significant implications for the understanding of...vaccine development.&quot; The statistical approach is unusual in the study of HLA molecules, and could lead the way to developing an HIV vaccine.
Citation: Listgarten J, Frahm N, Kadie C, Brander C, Heckerman D (2007) A statistical framework for modeling HLA-dependent T cell response data. PLoS Comput Biol 3(10): e188. doi:10.1371/journal.pcbi.0030188
Note: This story has been adapted from material provided by Public Library of Science.

Fausto Intilla
www.oloscience.com</description>
		<content:encoded><![CDATA[<p>Source: <a href="http://www.sciencedaily.com/releases/2007/10/071012080135.htm" rel="nofollow">http://www.sciencedaily.com/releases/2007/10/071012080135.htm</a></p>
<p>Science Daily — The search for a vaccination against HIV has been in progress since 1984, with very little success. Traditional methods used for identifying potential cellular targets can be very costly and time-consuming.<br />
The key to creating a vaccination lies in knowing which parts of the pathogen to target with which antibodies. A new study by David Heckerman and colleagues from Massachusetts General Hospital, publishing in PLoS Computational Biology, has come up with a way to match pathogens to their antibodies.<br />
At the core of the human immune response is the train-to-kill mechanism in which specialized immune cells are sensitized to recognize small peptides from foreign pathogens (e.g., HIV). Following this sensitization, these cells are then activated to kill cells that display this same peptide. However, for sensitization and killing to occur, the pathogen peptide must be &#8220;paired up&#8221; with one of the infected person&#8217;s other specialized immune molecules&#8211;an HLA (human leukocyte antigen) molecule. The way in which pathogen peptides interact with these HLA molecules defines if and how an immune response will be generated.<br />
Heckerman&#8217;s model uses ELISpot assays to identify HLA-restricted epitopes, and which HLA alleles are responsible for which reactions towards which pathogens. The data generated about the immune response to pathogens fills in missing information from previous studies, and can be used to solve a variety of similar problems.<br />
The model was applied to data from donors with HIV, and made 12 correct predictions out of 16. This study, says David Heckerman, has &#8220;significant implications for the understanding of&#8230;vaccine development.&#8221; The statistical approach is unusual in the study of HLA molecules, and could lead the way to developing an HIV vaccine.<br />
Citation: Listgarten J, Frahm N, Kadie C, Brander C, Heckerman D (2007) A statistical framework for modeling HLA-dependent T cell response data. PLoS Comput Biol 3(10): e188. doi:10.1371/journal.pcbi.0030188<br />
Note: This story has been adapted from material provided by Public Library of Science.</p>
<p>Fausto Intilla<br />
<a href="http://www.oloscience.com" rel="nofollow">http://www.oloscience.com</a></p>
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