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National Institute of Immunology, New Delhi

Hsp molecular chaperones function in antigen presentation to T lymphocytes

Published in Law and Health Weekly, June 17th, 2006

According to research from India, heat shock protein 90 (Hsp90) molecular chaperone family function in antigen presentation to T lymphocytes via major histocompatibility complex class II molecules.

"Hsp90 is known to chaperone cytosolic peptides for MHC class I (MHCI)-restricted antigen presentation to T lymphocytes. We now demonstrate a role for Hsp90 activity in presentation of antigens on MHCII," wrote D. Rajagopal and colleagues, National Institute of Immunology.

"Treatment of mouse antigen-presenting cells (APC) with the pharmacological Hsp90 inhibitor, geldanamycin, inhibited MHCII-mediated presentation of endocytosed and cytosolic proteins as...

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