FTO Knockdown-Mediated Maturation of MiR-383-5p Inhibits Malignant Advancement of Pancreatic Cancer by Targeting ITGA3

Overview

Journal Biochem Genet

Specialty Molecular Biology

Date 2023 Nov 24

PMID 38001392

Authors

Wei Zhang

Shilong Han

Yifeng Yuan

Minjie Xu

Anle Ding

Maoquan Li

Affiliations

Soon will be listed here.

Abstract

m6A demethylase FTO is confirmed to be involved in pancreatic cancer progression. FTO regulates miRNA processing. To investigate the regulatory effect of FTO on miR-383-5p and its role in pancreatic cancer. The expression of miR-383-5p, ITGA3, and FTO was predicted using bioinformatic analysis in tissues and was measured using qPCR in cells. Cell biological functions were investigated using MTT assay, Transwell assay, sphere formation assay, and qPCR. The targeting relationship between miR-383-5p and ITGA3 was evaluated using the dual-luciferase reporter assay. The effect of FTO on miR-383-5p processing was evaluated using RIP and MeRIP assay. FTO expression was upregulated in pancreatic cancer and silencing of FTO promoted the processing of miR-383-5p in an m6A-dependent manner. m6A-modified miRNA processing was recognized by IGF2BP1. Downregulation of miR-383-5p reversed FTO knockdown-induced inhibition of cellular processes. The FTO/miR-383-5p/ITGA3 axis facilitated cell viability, metastasis, and stemness in pancreatic cancer.

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