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Superantigen immune stimulation evokes epithelial monocyte chemoattractant protein 1 and RANTES production
S Jedrzkiewicz1, G Kataeva, C M Hogaboam
1Intestinal Disease Research Programme, McMaster University, Hamilton, Ontario, Canada.
Abstract:
Bacterial superantigens (SAgs) have been implicated in inflammatory disease, and SAg-treated mice have increased jejunal T cells. Here we show that T84 cells (a human epithelial cell line) display increased MCP-1 and RANTES mRNA expression and protein production in response to conditioned medium from Staphylococcus aureus enterotoxin B (SEB; a model SAg)-activated immune cells. Also, MCP-1 and RANTES mRNAs were increased in jejunal enterocytes isolated from SEB-treated mice. We suggest that T-cell recruitment to the gut following SAg immune activation could be partially due to epithelium-derived chemokines.