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What and Who

Chasing the virus - Computer help for treating AIDS patients

Thomas Lengauer
Max-Planck-Institut für Informatik - D3
Senior Researcher Series
AG 1, AG 2, AG 3, AG 4, AG 5, SWS, RG1, RG2  
MPI Audience
English

Date, Time and Location

Wednesday, 3 September 2008
16:00
45 Minutes
E1 4
024
Saarbrücken

Abstract

Abstract: AIDS is the infectious disease that causes the most human deaths world-wide. AIDS is caused by the human immunodeficiency virus (HIV), which infects mostly cells of the immune system. Soon after the discovery of the virus antiviral drugs were developed that target specific proteins that are essential for virus replication. At first these drugs were quite effective. But after a few years it turned out that the virus inside a patient treated with these drugs changes to acquire resistance against them. Since then several drugs are administered simultaneously in order to make it difficult for the virus to escape to resistance. However, in the end the virus is always successful.


Before this background there are two main research challenges. First we have to continuously develop new drugs that are effective against (formerly) resistant virus forms. Second, we need to find for each patient a personalized therapy consisting of a drug combination that provides a high barrier for the virus’ escape to resistance.

Both challenges are increasingly addressed with bioinformatics methods. In drug development pharmaceutical industry uses computer-based docking methods that model the binding behavior of putative drugs against their target protein. For therapy selection there are internet-based servers that are used in clinical practice. The basis for some of these servers are statistical models that estimate the effectiveness of a considered therapy on the basis of the genome of the dominant viral variant prevalent inside the patient.

The talk introduces into the molecular basis of HIV infection and survey relevant bioinformatics solutions in this area.

Contact

Roxane Wetzel
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Roxane Wetzel, 12/20/2007 09:44 -- Created document.