microRNA-34a-Upregulated Retinoic Acid-Inducible Gene-I Promotes Apoptosis and Delays Cell Cycle Transition in Cervical Cancer Cells.

DNA and Cell Biology
Jing-Hua WangHua Tang

Abstract

The function of retinoic acid-inducible gene-I (RIG-I) in viral replication is well documented, but its function in carcinogenesis and malignancies as well as relationship with microRNAs (miRNAs) remain poorly understood. miR-34a is an antioncogene in multiple tumors. In our study, RIG-I and miR-34a suppressed cell growth, proliferation, migration, and invasion in cervical cancer cells in vitro. miR-34a was validated as a new regulator of RIG-I by binding to its 3' untranslated region and upregulating its expression level. Furthermore, we revealed that RIG-I and miR-34a enhanced apoptosis, delayed the G1/S/G2 transition of the cell cycle, and inhibited the epithelial-mesenchymal transition process to modulate malignancies in cervical cancer cells. Phenotypic rescue experiments indicated that RIG-I mediates the effects of miR-34a in HeLa and C33A cells. These findings provide new insights into the mechanisms that underlie carcinogenesis and may provide new biomarkers for the diagnosis and therapy of cervical cancer.

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Citations

Feb 22, 2017·International Journal of Molecular Sciences·Angelica Judith Granados-LópezJesús Adrián López
May 31, 2019·Arthritis Research & Therapy·Lu ZhangGuochun Wang
Dec 18, 2019·Molecular Therapy : the Journal of the American Society of Gene Therapy·Jing XiaoHua Tang

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Methods Mentioned

BETA
transfection
Fluorescence
flow cytometry

Software Mentioned

CellQuest
PicTar
miRBase
Lab Works Image Acquisition and Analysis UVP
TargetScan

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