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AIDS researchers isolate new potent and broadly effective antibodies against HIV
Date:8/17/2011

bNAbs from separate blood samples using an entirely different approach.

Both the previous and current studies used Theraclone Science's highly sensitive I-STAR technology to isolate the antibodies. The new crop of bNAbs, like PG9 and PG16, was rescued from cell cultures derived from single antibody-producing B cells used for antibody discovery and development. Theraclone Sciences Executive Chair and Interim CEO, Steven Gillis commented, "We're delighted that I-STAR has provided essential support in identifying bNAbs that will contribute to advancing AIDS vaccine development. In this project, and in our own infectious disease and cancer programs, the I-STAR platform continues to demonstrate a remarkably powerful ability to isolate rare antibodies with unique properties. Theraclone values these collaborative opportunities in which I-STAR can be used to help improve treatment for critical diseases."

Monogram Biosciences, which also participated in the discovery of PG9 and PG16, conducted the neutralization assays essential to isolating the new bNAbs. The serum samples from which they were isolated represent the top 1% of all such samples gathered by IAVI and its partners, in terms of the number of HIV variants they neutralize and the potency with which they do so.

"Monogram has developed a highly skilled scientific team capable of taking on a variety of biomedical challenges," said Chris Petropoulos, Vice President, Laboratory Corporation of America Holdings, Research and Development, Monogram Biosciences. "Their expertise and innovation has been invaluable to the discovery of these new antibodies. This research illustrates the important role different sectors of the research and health care community can play in supporting global health initiatives."

The analysis of the new antibodies also hints at how future vaccines ought to be formulated to maximize their effectiveness. On the basis of their analyses, the authors of the report
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Contact: Lauren Wesolowski
lwesolowski@iavi.org
212-328-7420
International AIDS Vaccine Initiative
Source:Eurekalert

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