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Updated: Sep 23, 2025

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MicroRNA-19a-3p Acts as an Oncogene in Gastric Cancer and Exerts the Effect by Targeting SMOC2

Hui Xu1, Guochun Lu1, Shengkun Zhou1

  • 1Department of General Surgery, Tonglu First People's Hospital, No.338 Xuesheng Road, Hangzhou, Zhejiang, 311500, People's Republic of China.

Applied Biochemistry and Biotechnology
|May 11, 2022
PubMed

Insights

MicroRNA-19a-3p promotes gastric cancer growth and spread. This study reveals that microRNA-19a-3p targets SMOC2, driving aggressive cell behaviors in gastric cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • MicroRNAs play a role in cancer development.
  • Understanding specific microRNAs in gastric cancer is crucial.

Purpose of the Study:

  • To investigate the functions and mechanisms of microRNA-19a-3p in gastric cancer.
  • To identify the molecular targets and pathways regulated by microRNA-19a-3p.

Main Methods:

  • TCGA data analysis and qRT-PCR for microRNA expression.
  • MTT and Transwell assays for cell proliferation, migration, and invasion.
  • Bioinformatic prediction and dual-luciferase assays to confirm target interaction.

Main Results:

  • MicroRNA-19a-3p was significantly overexpressed in gastric cancer tissues.
  • Overexpression of microRNA-19a-3p enhanced gastric cancer cell proliferation, migration, and invasion.
  • SMOC2 was identified as a direct target of microRNA-19a-3p.

Conclusions:

  • MicroRNA-19a-3p acts as an oncogene in gastric cancer.
  • The microRNA-19a-3p/SMOC2 axis promotes aggressive phenotypes in gastric cancer cells.
Keywords:
Cell proliferation rateGastric cancer (GC)InvasionMicroRNA-19a-3pMigrationSMOC2

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