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Iranian Journal of Public Health، جلد ۵۰، شماره ۵، صفحات ۹۵۹-۹۶۹
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عنوان انگلیسی LncRNA MALAT1 Promote Cell Proliferation and Invasion by sponging miR-125b to Modulate HMGA1 Expression in Laryngocarcinoma
چکیده انگلیسی مقاله Background: Laryngocarcinoma is the most frequent head and neck malignant tumor. MALAT1 have a role in promoting cell proliferation and metastasis in several tumors. This research aimed to investigate the great roles of MALAT1in laryngocarcinoma. Methods: Overall, 54 cases of laryngocarcinoma tissues pathological specimens and paracancerous tissues were collected by surgical resection from the Department of Otolaryngology-Head and Neck Surgery at the Shandong Provincial Hospital affiliated to Shandong University, China from Jan 2012 to Oct 2015. The microRNA and protein levels of genes were evaluated by RT-qPCR and western blot. The proliferative and invasive ability were calculated usingCCK8 and transwell assays. Kaplan-Meier method was used to assess the survival of laryngocarcinoma patients. Results: In laryngocarcinoma tissues and cells, lncRNA MALAT1 expression was significantly increased compared to normal tissues and cells. LncRNA MALAT1 promotes proliferation and migration of laryngocarcinoma cells. LncRNA MALAT1 upregulates HMGA1 expression by acting as a competitive endogenous RNA (ceRNA) for miR-125b. Rescue experiments showed that microRNA-125b inhibitor reversed the change in cell viability and invasion induced by sh-MALAT1. Down regulation of lncRNA MALAT1 inhibits laryngocarcinoma proliferation and invasion by modulating miR-125b /HMGA1. Conclusion: LncRNA MALAT1 promotes the development of laryngocarcinoma by regulating the expression level of HMGA1 by acting as a miR-125b ceRNA and may be considered as a new strategy for the development of laryngocarcinoma.
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نویسندگان مقاله | Guangxin Zong
Department of Otorhinolaryngology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250021, China


| Xinrong Feng
Department of Otorhinolaryngology, Jinan Zhangqiu District Hospital of TCM, Jinan 250200, China


| Xiuhua Sun
Property Management Section, the People’s Hospital of Zhangqiu Area, Jinan 250200, China


| Jiexin Du
Department of Neurology, the People’s Hospital of Zhangqiu Area, Jinan 250200, China


| Guangsheng Wang
Department of Neurology, the People’s Hospital of Zhangqiu Area, Jinan 250200, China


| Tingting Song
No 2 Department of Oncology, Qingdao Tumor Hospital, Qingdao 266042, China
نشانی اینترنتی https://ijph.tums.ac.ir/index.php/ijph/article/view/22646
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