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Chlamydia infection up-regulates the expression of CD54 (ICAM-1) and CD80 (B7-1) on human monocyte-derived DC. DC were infected with C. trachomatis serovar L2 or E at a MOI of 10:1. Expression of cell surface markers CD54 and CD80 was determined by FACS analysis 24 h postinfection. Results are representative of four different donors.
