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Article Publish Status: FREE
Abstract Title:

MicroRNA-455-5p Contributes to Cholangiocarcinoma Growth and Mediates Galangin's Anti-Tumor Effects.

Abstract Source:

J Cancer. 2021 ;12(15):4710-4721. Epub 2021 Jun 4. PMID: 34149934

Abstract Author(s):

Xu Deng, Meiling Zuo, Zhifang Pei, Yuanlin Xie, Zhongbao Yang, Zhihui Zhang, Minna Jiang, Dabin Kuang

Article Affiliation:

Xu Deng

Abstract:

Fully understanding the mechanism of how Cholangiocarcinoma (CCA) development and discovering promising therapeutic drugs are important to improve patients' survival time. This study identifies that microRNA-455-5p (miR-455-5p) targets protein phosphatase 1 regulatory subunit 12A (PPP1R12A), an effect that represses mitogen-activated protein kinase (MAPK) and PI3K/AKT pathway activation, thereby controlling CCA cells survival and metastasis. Moreover, miR-455-5p expression is reduced in CCA tissues and negative correlation with PPP1R12A and PPP1R12A knockdown phenotypic mimics miR-455-5p' effects on CCA cells. Furthermore, we demonstrate that galangin inhibits CCA growth bothand, which is associated with increased miR-455-5p and repressed PPP1R12A expression. In support, overexpression of miR-455-5p abrogates those galangin-mediated anti-CCA effects. These findings establish an essential role of miR-455-5p in CCA development and galangin may provide a potential therapeutic adjuvant agent for anti-CCA treatment.

Study Type : In Vitro Study

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Sayer Ji
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