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Methods to recover cells from ELISPOT immunoassay developed.

Vaccine Weekly

| September 01, 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 SEP 1 - (NewsRx.com & NewsRx.net) -- Researchers have developed methods to recover cells from the ELISPOT immunoassay.

"The enzyme-linked immunospot (ELISPOT) assay is a highly sensitive and reproducible method for quantifying T cell-mediated immune responses, and has been used to measure antigen-specific responses post-vaccination. While there are several advantages of the ELISPOT assay for use in field settings for large-scale vaccination trials, blood draw volumes are often limited, and the number of antigen-specific responses that can be measured is constrained by the limited cell number. We reasoned that it should be possible to salvage and rescue viable cells from a completed ELISPOT assay post-incubation, to use for further experimentation," scientists in the United States report.

"Here, we show that cells rescued from an ELISPOT plate after assay are viable, and may be used in a second cytokine-producing assay, in a proliferation assay, or to provide a source of DNA for genetic studies such as human leukocyte antigen (HLA) typing," said ...

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