抑制聚二磷酸腺苷核糖聚合酶1減輕尼古丁誘導的人支氣管上皮細胞炎癥反應(yīng)的研究
[Abstract]:Objective: to detect the changes of inflammatory factors in human bronchial epithelial cells stimulated by nicotine. The role and mechanism of inhibition of adenosine diphosphate polymerase 1 (PARP1) in nicotine-induced Toll-like receptor 4 (TLR4)-mediated inflammation of human bronchial epithelial cells was investigated. Materials and methods: human bronchial epithelial cells were cultured. By real-time quantification of RNA, Western blot, transfection of small interfering RNA and immunofluorescence, the expression of inflammatory factor-related genes and proteins in the nicotine stimulated group and its negative control group were detected, respectively. Results: compared with the control group, nicotine stimulation increased the protein expression of TLR4 and PARP1. TLR4 inhibited the up-regulation of ICAM-1 and PARP1 induced by nicotine. The inhibition of NF- 魏 B reduced the expression of iNOS and ICAM-1. Inhibition of PARP1 reduces nicotine-induced inflammatory factor expression by blocking nuclear translocation of NF-魏 B. Conclusion: our study shows that nicotine stimulates bronchial epithelial cells and induces the expression of ICAM-1 and iNOS through TLR 4 / PARP 1 / NF- 魏 B pathway. PARP-1 may be an indispensable factor in nicotine-induced TLR 4-mediated inflammatory response. Inhibition of PARP-1 may be an effective method for the treatment of nicotine-induced inflammatory factor expression in bronchial epithelial cells.
【學位授予單位】:山東大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:R363
【共引文獻】
相關(guān)期刊論文 前1條
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相關(guān)碩士學位論文 前10條
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