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ABBS: Squalene epoxidase induces EMT through miR-133b

已有 670 次阅读 2018-9-20 11:04 |个人分类:期刊新闻|系统分类:论文交流| squalene, epoxidase, miR-133b

SQLE induces epithelial-to-mesenchymal transition by regulating of miR-133b in esophageal squamous cell carcinoma

Yi Qin , Yi Zhang , Qinting Tang , Li Jin , and Yong’an Chen

Department of Gastroenterology, First People’s Hospital of Yancheng City, Yancheng 224001, China,

Acta Biochim Biophys Sin 2017, 49: 138–148; doi: 10.1093/abbs/gmw127

Increasing evidence suggests that microRNAs, which control gene expression at the post-transcriptional level, are aberrantly expressed in cancers and play significant roles in carcinogenesis and cancer progression. In this study, we show differential miR-133b down-expression in human esophageal squamous cell carcinoma (ESCC) cells and tissues. In addition, squalene epoxidase (SQLE), a key enzyme of cholesterol synthesis, is identified as the direct downstream target gene of miR-133b by luciferase gene reporter assay. Furthermore, ectogenic miR-133b expression and SQLE knockdown can inhibit proliferation, invasion, and metastasis, and diminish epithelial-to-mesenchymal transition (EMT) traits of ESCC in vitro, implying that miR-133b-dependent SQLE can induce tumorigenicity and that SQLE is an EMT inducer. Xenograft experiment results also proved the biological function of SQLE in vivo. Therefore, we conclude that miR-133b-dependent SQLE plays a critical role in the potential metastasis mechanisms in ESCC.


EMT is regulated by SQLE in ESCC cells




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