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-  2015 

过表达microRNA-7对人肺癌95D细胞凋亡的影响

DOI: 10.3971/j.issn.1000-8578.2015.02.002

Keywords: A Meta-analysis,Effect of GANT61 on Apoptosis of Esophageal Squamous Carcinoma Cells and Its Mechanism,Effect of Rap2a on Invasion and Metastasis of Lung Cancer Cells and Its Related Mechanism,NSCLC的疫苗治疗研究进展,Immune Killing Effect of Silencing TIPE2 Expression on T Lymphocytes Against Lung Adenocarcinoma Cells LA795,Clinical Investigation on Qingfei Mixture Combined with Chemotherapy on Middle and Advanced Non-small Cell Lung Cancer,Effect of Vascular Endothelial Cadherin on Invasion and Metastasis of Non-small Cell Lung Cancer Cells and Related Mechanism,Advances of FGF/FGFR Signaling Pathway in Targeted Therapy for Squamous Cell Lung Cancer,Sulforaphane Suppressed Proliferation of Lung Cancer Stem Cells in vitro,Experiment of Different Administration Sequences of Apatinib and Paclitaxel on Lung Cancer

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Abstract:

摘要 目的 探讨过表达microRNA-7对人肺癌95D细胞体内外凋亡的作用。方法 将miR-7真核表达载体(命名为p-miR-7)体外瞬时转染人肺癌95D细胞,利用TUNEL法观察95D细胞凋亡的变化;免疫荧光技术检测各组细胞磷酸化Caspase3和Caspase9蛋白的表达;建立人肺癌裸鼠模型,肿瘤局部注射p-miR-7后利用TUNEL法检测肿瘤局部细胞凋亡变化,同时,免疫组织化学法检测凋亡相关的磷酸化Caspase3和Caspase9蛋白的表达变化。结果 体外转染p-miR-7后可导致人肺癌细胞的凋亡(P<0.05)。同时,细胞中磷酸化Caspase3和Caspase9蛋白水平显著增加(P<0.05);肿瘤局部注射p-miR-7后,肿瘤局部miR-7表达水平及细胞凋亡也明显增强(P<0.05),磷酸化Caspase3和Caspase9蛋白水平也显著增加。结论 过表达miR-7可以导致肿瘤细胞凋亡,这与凋亡相关蛋白Caspase3和Caspase9磷酸化水平增加有关

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