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miRNA-335 and miRNA-182 affect the occurrence of tongue squamous cell carcinoma by targeting survivin.

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机构: [1]Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055 [2]Department of Stomatology, Central Hospital of Panyu, Guangzhou, Guangdong 511400 [3]Department of Stomatology, Foshan Hospital of Chinese Traditional Medicine, Foshan, Guangdong 528000 P.R. China
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关键词: miR‑335 miR‑182 tongue squamous cell carcinoma survivin

摘要:
The aim of the present study was to characterize the roles of two microRNAs (miRs) that have been reported to be differentially expressed in tongue squamous cell carcinoma (TSCC), miR-335 and miR-182. In total, 20 tumor tissue samples and 20 corresponding adjacent non-cancerous samples were collected from patients with TSCC to measure the expression of miR-335 and miR-182 and the potential shared target of these miRs, survivin, using reverse transcription-quantitative polymerase chain reaction and western blotting. In the TSCC tissue samples, significantly decreased expression of the two miRs and increased expression of survivin were detected compared with adjacent non-cancerous controls. Subsequently, it was confirmed that survivin was the target gene of miR-335 and miR-182 using a luciferase assay in TSCC cells. In order to examine the function of miR-335 and miR-182 in the development of TSCC, TSCC cells were transiently transfected with the mimics of the two miRs, and it was confirmed that the introduction of miR-335 and miR-182 to cells suppressed the expression of survivin and markedly inhibited the proliferation of the TSCC cells. Furthermore, miR-335 and miR-182 were found to induce cell cycle arrest by suppressing the expression of survivin. The present study revealed a negative regulatory role of miR-335 and miR-182 in the proliferation of TSCC cells by targeting survivin, and miR-335 and miR-182 may be novel therapeutic targets for the treatment of TSCC.

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出版当年[2015]版:
大类 | 4 区 医学
小类 | 4 区 肿瘤学
最新[2025]版:
大类 | 4 区 医学
小类 | 4 区 肿瘤学
第一作者:
第一作者机构: [1]Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055 [2]Department of Stomatology, Central Hospital of Panyu, Guangzhou, Guangdong 511400
通讯作者:
通讯机构: [1]Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, Guangzhou, Guangdong 510055 [*1]Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-Sen University, 56 Lingyuanxi Road, Guangzhou, Guangdong 510055, P.R. China
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