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Tuberculosis Vaccine

Cellular response insufficient for long-term survival in TB patients

Published in Vaccine Weekly, September 1st, 2004

A limited antigen-specific cellular response is sufficient for the early control of Mycobacterium tuberculosis in the lung but is insufficient for long-term survival.

"Mice that were transgenic for a T-cell receptor (TCR) specific for ovalbumin peptide323-339 (DO11.10) were able to survive an infection with Mycobacterium tuberculosis for approximately 80 days. This limited early control of infection was associated with gamma interferon production, inducible nitric oxide synthase expression within the lung, and an influx of clonotypic lymphocytes. The control of M. tuberculosis was lost in DO11.10 mice bred in a rag mutant background,...

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