Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China.
Department of Gynecology, Shandong Provincial Hospital, Cheeloo College of Medicine, Shandong University, Jinan, China.
Bioengineered. 2021 Dec;12(2):10771-10781. doi: 10.1080/21655979.2021.2003662.
Ovarian cancer (OC) is one of the most common malignancies of the female reproductive system. The miRNA miR-582-3p is associated with a variety of tumors, and the aim of this study was to investigate the role and mechanisms of miR-582-3p specifically in ovarian carcinogenesis and progression. Low expression of miR-582-3p was noted in OC tissue and cell lines, and lower expression of miR-582-3p correlated with lower overall survival in OC patients. Knockdown of miR-582-3p promoted the proliferation and migration of OC cells, while overexpression inhibited them. TUG1, a long non-coding RNA, was found to bind to miR-582-3p, and inhibition of lncRNA TUG1 decreased viability and migration and weakened the effect of miR-582-3p knockdown in OC cells. Implantation of OC cells with reduced miR-582-3p caused increased tumor growth, while lncRNA TUG1 knockdown suppressed tumor growth and relieved the impact of reduced miR-582-3p . Phosphorylation of AKT and mTOR were significantly enhanced with decreased miR-582-3p expression, but lncRNA TUG1 knockdown attenuated this trend and . The novel miR-582-3p represses the malignant properties of OC the AKT/mTOR signaling pathway by targeting lncRNA TUG1. This axis may represent valuable prognostic biomarkers and therapeutic targets for OC.
卵巢癌(OC)是女性生殖系统最常见的恶性肿瘤之一。miRNA miR-582-3p 与多种肿瘤相关,本研究旨在探讨 miR-582-3p 在卵巢癌发生和进展中的作用和机制。研究发现 OC 组织和细胞系中 miR-582-3p 表达水平较低,OC 患者中 miR-582-3p 表达水平较低与总生存率降低相关。敲低 miR-582-3p 促进 OC 细胞的增殖和迁移,而过表达则抑制其增殖和迁移。长链非编码 RNA TUG1 被发现与 miR-582-3p 结合,抑制 lncRNA TUG1 降低了 OC 细胞的活力和迁移能力,并减弱了 miR-582-3p 敲低的作用。降低 miR-582-3p 的 OC 细胞的植入导致肿瘤生长增加,而 lncRNA TUG1 敲低则抑制肿瘤生长并减轻 miR-582-3p 减少的影响。miR-582-3p 表达降低显著增强 AKT 和 mTOR 的磷酸化,但 lncRNA TUG1 敲低减弱了这种趋势。miR-582-3p 通过靶向 lncRNA TUG1 抑制 OC 的恶性特性,即 AKT/mTOR 信号通路。该轴可能代表 OC 的有价值的预后生物标志物和治疗靶点。