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Flow cytometric assay for responses to anthrax vaccine developed.

Vaccine Weekly

| January 21, 2004 | COPYRIGHT 2004 NewsRX. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

2004 JAN 21 - (NewsRx.com & NewsRx.net) -- Scientists have developed a flow cytometric assay using TNF-alpha detection to determine cellular responses to anthrax vaccine.

"This study describes a four-color flow cytometric assay that detects CD4+ T cell responses to the anthrax vaccine. Whole blood from seven volunteers who previously obtained the anthrax vaccine was inoculated in vitro with varying concentrations of the anthrax antigen. TNF-alpha and IFN-gamma production from memory CD4+ T cells were measured and compared to a control group who never received the anthrax vaccine," scientists in the United States report.

"The optimal antigen concentration for TNF-alpha was determined to be around 7.5 microgram/mL and IFN-gamma production was not detected," said Annie H. Shinn and collaborators at the University of the Pacific, Becton Dickinson Biosciences, and the Clinical Investigation Facility at Travis Air Force Base. "This assay will be used in future larger ...

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Source: HighBeam Research, Flow cytometric assay for responses to anthrax vaccine developed.

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