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Biotech / Medical : ADVR: BULLS AND BEARS! -- Ignore unavailable to you. Want to Upgrade?


To: Steve D. who wrote (8723)2/16/2000 2:10:00 PM
From: KAKALAK  Read Replies (5) | Respond to of 8902
 
ADVR NEWS!!!

Human Genome Sciences Receives
Patent On AIDS Virus Entry Point

ROCKVILLE, Md., Feb. 16 /PRNewswire/ -- Human Genome Sciences, Inc. (Nasdaq: HGSI -
news) announced today that it was issued a U.S. patent on a human gene that produces what is
believed to be the critical entry point for the AIDS virus. The gene, known as the CCR5 receptor
gene, gives rise in human cells to a protein that functions as a receptor or docking site for the human
immunodeficiency virus (HIV).


Scientists learned some years ago that people who lack a functional CCR5 receptor gene are
resistant to infection with HIV. The discovery suggested that drugs that interfere with the receptor
might be effective treatment for AIDS and triggered a global race to identify suitable compounds.
HGS has provided several of its partners with licenses for the use of the CCR5 receptor gene in
drug discovery. For example, on February 8, 2000, HGS concluded an agreement with Praecis
Pharmaceuticals under which Praecis will seek to develop therapies for AIDS by employing the
CCR5 receptor gene.
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YONKERS, N.Y.--(BW HealthWire)--Feb. 25, 1999--Advanced Viral
Research Corp. (OTC BB:ADVR) announced Thursday that its scientists
have discovered that its lead antiviral drug, Reticulose, inhibited the
production of a key cellular receptor for HIV.

Using CD4 positive T-lymphocytes, the scientists found that Reticulose
markedly decreased the number of cellular CCR5 receptors. The CCR5
receptor is one of the three most important cell receptors needed by the
AIDS virus, HIV, to attach to its target cells and initiate infection.

Interference with the function of the CCR5 cellular chemokine receptor is
known to increase the resistance of T-lymphocytes and macrophages to
HIV infection. A mutation in the CCR5 gene, especially prevalent in
individuals of northern European descent, appears to render these
individuals resistant to infection by HIV.

Commenting on this research, Dr. Shalom Z. Hirschman, president and
CEO of Advanced Viral Research Corp., stated: "The exciting discovery by
our scientists that the immunomodulator, Reticulose, interferes with the
production of the CCR5 receptor, offers a novel approach to the
development of therapeutic agents for HIV infection. This new finding may
account, in part, for the beneficial effects of Reticulose in the treatment of
HIV infected individuals observed in preliminary clinical trials.
Furthermore, this new pathway of inhibiting HIV infection suggests that
combination therapy with Reticulose may enhance the therapeutic
effectiveness of the AIDS cocktails currently in use."

Reticulose is a peptide nucleic acid preparation produced by Advanced
Viral Research Corp., which, based on previous history, has been shown
to be effective against a number of viral diseases. For further information,
contact Mark Amster at 954/458-7636.