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Over-regulation of microRNA-133b inhibits cell proliferation of cisplatin-induced non-small cell lung cancer cells through PI3K/Akt and JAK2/STAT3 signaling pathway by targeting EGFR

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机构: [1]Department of Respiratory Medicine, Fourth Hospital of Hebei Medical University [2]Department of Respiratory Medicine, First Hospital of Shijiazhuang, Hebei 050011, P.R. China
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关键词: microRNA-133b non-small cell lung cancer cells Akt STAT3 EGFR

摘要:
The present study determined the anticancer activity and its mechanism of microRNA-133b on cell proliferation of cisplatin-induced non-small cell lung cancer cells. The expression of microRNA-133b cisplatin-induced non-small cell lung cancer (NSCLC) tissue was lower than that of para-carcinoma tissue in patients. Overall survival of higher expression in cisplatin-induced NSCLC patients was higher than that of lower expression in cisplatin-induced NSCLC patients. Over-regulation of microRNA-133b inhibited cell proliferation and LDH activity, induced apoptosis and caspase-3 activity, suppressed the protein expression of EGFR, PI3K, p-Akt, p-JAK2 and p-STAT3, decreased cyclin D1 and increased Bax protein expression in cisplatin-induced A549 cells. EGFR inhibitor (lapatinib) suppressed EGFR protein expression, inhibited cell proliferation and LDH activity, and induced apoptosis and caspase-3 activity in cisplatin-induced A549 cells by over-regulation of microRNA-133b. When EGFR protein expression was suppressed, PI3K, p-Akt, p-JAK2 and p-STAT3, decreased cyclin D1 and increased Bax protein expression in cisplatin-induced A549 cells by over-regulation of microRNA-133b. Altogether, our results indicated that over-regulation of microRNA-133b inhibits cell proliferation of cisplatin-induced NSCLC by PI3K/Akt and JAK2/STAT3 signaling pathway by targeting EGFR.

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出版当年[2018]版:
大类 | 3 区 医学
小类 | 4 区 肿瘤学
最新[2025]版:
大类 | 3 区 医学
小类 | 4 区 肿瘤学
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出版当年[2018]版:
Q2 ONCOLOGY
最新[2024]版:
Q2 ONCOLOGY

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第一作者机构: [1]Department of Respiratory Medicine, Fourth Hospital of Hebei Medical University [*1]Department of Respiratory Medicine, Fourth Hospital of Hebei Medical University, 12 Jiankang Road, Hebei 050011, P.R. China
通讯作者:
通讯机构: [1]Department of Respiratory Medicine, Fourth Hospital of Hebei Medical University [*1]Department of Respiratory Medicine, Fourth Hospital of Hebei Medical University, 12 Jiankang Road, Hebei 050011, P.R. China
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