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J Immunol. 2000 Dec 1;165(11):6029-35.

Cutting edge: heat shock protein gp96 induces maturation and migration of CD11c+ cells in vivo.

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Center for Immunotherapy of Cancer and Infectious Diseases, University of Connecticut School of Medicine, Farmington, CT 06030, USA.


Immunization of mice with the heat shock protein (HSP) gp96 but not control proteins leads to 5- to 7-fold enlargement of draining lymph nodes (LNs) resulting from accumulation of large numbers of mature CD11c(+) cells, but not T or B lymphocytes in them. The increase in size and cellularity is time-dependent; the draining LNs reach their peak size between 12 and 24 h after injection and regress to their normal size between 48 and 72 h after injection. The increment is elicited specifically in the draining LN but not in other LNs. This observation uncovers a novel aspect of HSP-APC interaction and adds to the mechanistic explanation for the unusually high immunogenicity of HSP-peptide complexes.

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