期刊
JOURNAL OF THE RENIN-ANGIOTENSIN-ALDOSTERONE SYSTEM
卷 17, 期 3, 页码 -出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1470320316663327
关键词
Olmesartan; miR-205; VEGF-A; cervical cancer; proliferation
Objective: The renin-angiotensin-aldosterone system has become known as a prerequisite for tumor angiogenesis that is now recognized as a crucial step in the development of tumors, including cervical cancer. The Ang II-AT1R pathway is known to play an important role in tumor angiogenesis. MicroRNAs (miRNAs) are a class of small, regulating RNAs that participate in tumor genesis, differentiation and proliferation. The current study focused on the anti-tumor mechanism of olmesartan, a novel angiotensin II antagonist, on cervical cancer cells. Materials and methods: qRT-PCR and Western blot were used to demonstrate the effect of olmesartan on miR-205 and VEGF-A expression. miR-205 mimics and VEGF-A shRNA plasmid were separately transfected into HeLa and Siha cells to further validate the function of miR-205 and VEGF-A in cervical cancer cell proliferation. Results: It was found that olmesartan could upregulate miR-205 and inhibit VEGF-A expression in HeLa and Siha cells. In addition, VEGF-A was proven to be a target gene of miR-205. Conclusion: This result provides a new idea on the anti-tumor mechanism of olmesartan, which may be used as a novel therapeutic target of cervical cancer.
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