Abstract
To observe the effect of the blood cooling and detoxification formula and its dismantled formulae on activated T lymphocytes-induced keratinocyte proliferation and cytokine secretion. Rat drug-containing serum was prepared. PDB-stimulated T lymphocytes and Colo-16 cells were co-cultured, then added with the drug-containing serum, and laid aside for 24 h. The cell proliferation was detected by MTT assay. Cytokines TNF-alpha, sICAM-1 and IFN-gamma were detected by ELISA. The blood cooling and detoxification formula has a notable inhibitory effect on activated T lymphocyte-induced Colo-16 keratinocyte proliferation, with a significant difference between the whole formula group and the blood cooling group (P < 0.01). After activated T lymphocytes had added into Colo-16 cells for 24 hour, sICAM-1, TNF-alpha and IFN-gamma significantly increased. Though the whole blood cooling and detoxification formula, the blood cooling formula and the detoxification formula could notably reduce sICAM-1, TNF-alpha, IFN-gamma, the whole formula group showed the most significant effect. The blood cooling and detoxification formula, as an effective traditional Chinese medicine compound for clinical treatment of psoriasis, can significantly inhibit activated T lymphocyte-induced keratinocyte proliferation and cytokine secretion.
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