MicroRNA-182 Promotes Cell Migration by Targeting Programmed Cell Death 4 in Hepatocellular Carcinoma Cells

Junwei Hu1,2, Zeyu Wang1, Jinjun Wang3

  • 1Department of Gastroenterology, Shanghai University of Medicine & Health Sciences Affiliated Zhoupu Hospital, Shanghai 201318, People's Republic of China.

Oncotargets and Therapy
|September 28, 2020
PubMed
Abstract

Insights

MicroRNA-182 (miR-182) promotes liver cancer cell migration by downregulating the tumor suppressor programmed cell death 4 (PDCD4). This study confirms miR-182 targets PDCD4 in hepatocellular carcinoma.

Area of Science:

  • Oncology
  • Molecular Biology
  • Hepatology

Background:

  • Hepatocellular carcinoma (HCC) is a leading cause of cancer mortality globally.
  • Programmed cell death 4 (PDCD4) is a known tumor suppressor in liver cancer.
  • Mechanisms regulating PDCD4 expression in HCC remain largely unelucidated.

Purpose of the Study:

  • Investigate PDCD4 and miR-182 expression in HCC.
  • Determine if PDCD4 is a direct target of miR-182 in HCC cell lines.
  • Elucidate the role of miR-182 in hepatocarcinogenesis.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) and Western blotting for expression analysis.
  • Transwell and wound healing assays to assess cell migration.
  • Luciferase reporter assay to confirm direct target interaction.

Main Results:

  • PDCD4 expression was downregulated, while miR-182 was upregulated in HCC cell lines and tissues.
  • miR-182 significantly promoted migration of liver cancer cells.
  • PDCD4 was confirmed as a direct target of miR-182, with inverse expression correlation.

Conclusions:

  • miR-182 functions as an oncogene in HCC.
  • miR-182 promotes liver cancer progression by directly downregulating PDCD4.
  • Targeting the miR-182/PDCD4 axis may offer therapeutic strategies for HCC.

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