4.2 Article

MicroRNA-373-3p inhibits the growth of cervical cancer by targeting AKT1 both in vitro and in vivo

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ACTA BIOCHIMICA POLONICA
卷 68, 期 4, 页码 611-617

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ACTA BIOCHIMICA POLONICA
DOI: 10.18388/abp.2020_5446

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microRNA-373-3p; AKT1; cervical cancer; cell proliferation

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miR-373-3p functions as a novel anti-tumor microRNA in cervical cancer by targeting AKT1, leading to decreased cell proliferation and inhibited tumor growth.
Objective: In this study, we aimed to investigate the function of microRNA-373-3p (miR-373-3p) in the pathogenesis of cervical cancer. Methods: Human and mouse cervical cancer cell lines were transfected with miR-3733p mimic and inhibitor. Cell proliferation and viability were evaluated with Cell Counting Kit-8 (CCK-8) assay and Lactate Dehydrogenase (LDH) assay, respectively. The AKT1-targeting role of miR-373-3p was analyzed by qPCR and Western blot. Finally, a mouse xenograft cervical tumor model was adopted to study the in vivo effect of miR-373-3p on tumor growth and the expression of AKT1. Results: Over-expression of miR-373-3p significantly reduced the proliferation of cervical carcinoma cell line in vitro. In addition, miR-373-3p overexpression also inhibited cervical cancer growth in tumor-bearing mice. Mechanistically, we found that AKT1 gene can be targeted by miR-373-3p. MiR-373-3p mimic decreased the mRNA and protein expression of AKT1, while the miR-373-3p inhibitor increased the level of AKT1 in cervical cancer cells. AKT1 overexpression rescued the proliferation of cervical cancer cells transfected with miR-3733p. Conclusion: MiR-373-3p can serve as a novel anti -tumor microRNA in cervical cancer by targeting AKT1.

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