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Bar graphs showing the production of MCP-1 (A) and RANTES (B) proteins by T84 cells in response to treatment with 50% conditioned medium from SEB-activated PBMC (SEB-CM), TNF-α (5 ng/ml), or TNF-α plus IFN-γ (both at 5 ng/ml) (mean ± SEM; n = 3 to 6; ∗, P < 0.05 compared to other groups).
