Objective: To investigate the intervention effect and potential mechanism of Qingre Huashi decoction(QHD) for preventing the onset of colon cancer by observing SGC-7901 cell proliferation and apoptosis along with the expression of CD14 gene, tumor necrosis factor alpha and interleukin 1 beta. Method: SGC-7901 cells were divided into control group, intervention group. In vitro, the control group was offered fetal calf serum. The intervention group was fed with serum containing QHD for 5%,10%,15%,20%,30%. The multiplication, proliferation and apoptosis of SGC-7901 cell were detected by MTT and flow cytometry respectively. The expression of CD14, TNF-α and IL-1β gene was assayed by immunohistochemistry and real-time PCR. Result: Compared with control group, the survival of SGC-7901 cell was decreased in QHD group(P<0.05). In QHD group, the cells in G0/G1 phase were increased but the S phase cell was on the decline. Those changes were correlated with the culturing content. There is a significant difference between QHD group and control group in those changes as mentioned above(P<0.05). Especially, the effect of middle concentration serum containing QHD on inducing cell apoptosis and down regulating the expression of CD14, TNF-α, IL-1β was obvious (P<0.05). Conclusion: QHD exerts a distinct effect on preventing the onset of colon cancer by mediating SGC-7901 cell S time, cell composition and regulating the expression of CD14, TNF-α and IL-1β and inducing cell apoptosis.
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