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Iranian Journal of Basic Medical Sciences، جلد ۲۳، شماره ۳، صفحات ۳۲۹-۳۳۶
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عنوان انگلیسی Inhibition of miR-22 enhanced the efficacy of icotinib plus pemetrexed in a rat model of non-small cell lung cancer
چکیده انگلیسی مقاله Objective(s): To investigate the role of miR-22 in the efficacy of combined icotinib (BPI-2009H) and pemetrexed (LY-231514) on tumor growth and apoptosis in rats with non-small cell lung cancer (NSCLC).Materials and Methods: Rats were injected with HCC827 cells, which were transfected with anti-miR-22, followed by the treatment of BPI-2009H and/or LY-231514. MTT assay was used to detect the inhibition rate of HCC827 cells. qRT-PCR was performed to examine miR-22 expression in HCC827 cells and lung tumor tissues. Moreover, immunohistochemistry and Western blotting were performed to detect the related-molecule expressions, while TUNEL staining was used to observe cell apoptosis of lung tumor tissues.Results: MiR-22 expression was decreased in HCC827 cells after the treatment of BPI-2009H or LY-231514 in a dose-dependent manner. Both BPI-2009H and LY-231514 increased the inhibition rate of HCC827 cells, which was enhanced by anti-miR-22 with decreased IC50 values. Furthermore, the decreased expression of miR-22 was found after the treatment of BPI-2009H or/and LY-231514 in lung tumor tissues. In addition, the expressions of PCNA, Ki67, and Bcl-2 were reduced, but Bax and Caspase-3 were increased in treated rats, typically in those rats treated with the combination of anti-miR-22, BPI-2009H, and LY-231514. Conclusion: Inhibition of miR-22 could enhance the efficacy of icotinib combined with pemetrexed in rats with NSCLC, providing a new perspective for NSCLC therapy.
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نویسندگان مقاله | Jing Zhang
Department of Thoracic Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China


| Zhi-Qiang Xue
Department of Thoracic Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China


| Bin Wang
Department of Thoracic Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China


| Jia-Xin Wen
Department of Thoracic Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China


| Yun-Xi Wang
Department of Thoracic Surgery, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
نشانی اینترنتی http://ijbms.mums.ac.ir/article_14466.html
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