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Toll样受体4和9基因在肺纤维化大鼠的表达和意义 被引量:3

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摘要 目的:观察Toll样受体9(TLR-9)及Toll样受体4(TLR-4)基因在肺成纤维细胞大鼠的动态演变及其在炎性反应中的作用。方法:博莱霉素诱导实验性大鼠肺纤维化模型,采用微波改良Masson染色、VG染色法、q RT-PCR等方法,观察实验性大鼠肺纤维化的发病过程及其肺组织中TLR-9和TLR-4基因表达水平的动态变化及其下游分子NF-KB和IFN-γ的表达。结果:实验性大鼠肺纤维化发病过程中,呈现典型的肺泡炎(7d)、纤维组织增生(14d)及稳定的肺纤维化(28~56d)等表现;与对照组相比,TLR-9、TLR-4、NF-KB和IFN-γ显著高于对照组,差异具有统计学意义(P<0.01);TLR-9与NF-KB和IFN-γ表达呈正相关(r=0.91、r=0.88,P<0.01);TLR-4与NF-KB和IFN-γ表达也呈正相关(r=0.96、r=0.98,P<0.01)。结论:TLR-9和TLR-4可能参与肺纤维化的发生发展及调控大鼠肺成纤维的炎症反应。
出处 《北方药学》 2017年第2期137-138,共2页 Journal of North Pharmacy
基金 湖南省教育厅基金资助项目(16C1395 16C1393 14B156) 衡阳市科技局基金资助项目(2016KJ47)
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