血小板活化因子对气道平滑肌细胞的增殖及核因子NFκB表达的影响
血小板活化因子,,血小板活化因子;气道;平滑肌细胞;核因子NFκB,0引言,1材料和方法,2结果,3讨论,【参考文献】
Effects of plateletactivating factor on proliferation of airway smooth muscle cells and expression of nuclear factorκBSONG YingFang, LI HuanZhang, SU MingQuan, WU ChangGui
1Department of Respiratory Medicine, 2Department of Clinical Laboratory, Xijing Hospital, Fourth Military Medical University, Xi’an 710033, China
【Abstract】 AIM: To investigate the effects of plateletactivating factor (PAF) on the proliferation of rat airway smooth muscle cells (ASMCs) and the expression of nuclear factorκB (NFκB). METHODS: MTT assay and flow cytometry were used to analyze the effects of PAF on the proliferation of ASMCs in vitro and NFκB activity change of the ASMCs stimulated by PAF was examined by electrophoretic mobility shift assay (EMSA). The effects of Nacetylcysteine (NAC) on the function of PAF were also studied. RESULTS: PAF (1×10-6-1×10-9 mol/L) stimulated the cell proliferation and reached its maximal effect at 1×10-7 mol/L. The proliferative index (PI) of the ASMCs significantly increased(P<0.05)and the NFκB activity was enhanced obviously(P<0.01) following stimulation of PAF (10-7 mol/L). NAC (20 mmol/L) partly inhibited the cell proliferation and the increased NFκB activity induced by PAF (P<0.05). CONCLUSION: PAF can stimulate the proliferation of ASMCs, which may be achieved partly through the activation of NFκB pathway. ......
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