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Genome-based screening approach to vaccine development designed.

Vaccine Weekly

| September 10, 2003 | COPYRIGHT 2003 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

2003 SEP 10 - (NewsRx.com & NewsRx.net) -- Researchers have designed a genome-based functional screening approach to vaccine development that combines in vitro assays and DNA immunization.

"A two-step screening strategy was developed to identify strong immunogenic polypeptides with putative vaccine and/or adjuvant activity," scientists in New Zealand report.

"In the first step, a mycobacterial genomic DNA library was screened in vitro to identify plasmids encoding polypeptides that stimulate splenocytes from mycobacteria-immunized mice and T cells from PPD-positive healthy donors to produce interferon-gamma," stated Alain Delcayre and colleagues at Genesis Research and Development. "In the second step, plasmids were selected for their ability to induce protective immunity in a mouse model of tuberculosis following DNA immunization. The potential of this approach is ...

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