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miR-1297 promotes cell proliferation by inhibiting RB1 in liver cancer

Chengyong Liu1, Chunying Wang2, Ji Wang2

  • 1Department of Clinical Laboratory, Xuzhou City Hospital For Infectious Diseases, Xuzhou, Jiangsu 221000, P.R. China.

Oncology Letters
|January 21, 2017
PubMed

Insights

MicroRNAs (miRNAs) play a role in liver cancer. This study identified miR-1297 as a promoter of liver cancer by downregulating the tumor suppressor gene RB1, suggesting it as a potential therapeutic target.

Area of Science:

  • Oncology
  • Molecular Biology
  • Genetics

Background:

  • Liver cancer is a leading cause of cancer mortality globally.
  • MicroRNAs (miRNAs) are implicated in the development of various cancers, including liver cancer.

Purpose of the Study:

  • To identify microRNAs involved in liver carcinogenesis.
  • To investigate the role of miR-1297 in liver cancer development and its molecular mechanisms.

Main Methods:

  • Analysis of miRNA expression profile data from the Gene Expression Omnibus database.
  • Utilized Fisher's exact test, t-test, and Wilcoxon test for differential expression analysis.
  • Performed cell proliferation assays (Cell Counting Kit-8), luciferase assays, and western blotting.

Main Results:

  • Identified five differentially expressed miRNAs, with miR-1297 showing significant involvement.
  • miR-1297 promoted HepG2 cell proliferation and directly targeted the 3'-untranslated region of retinoblastoma 1 (RB1).
  • miR-1297 suppressed RB1 protein expression, impacting cell cycle regulation.

Conclusions:

  • miR-1297 may contribute to liver carcinogenesis by downregulating the tumor suppressor gene RB1.
  • miR-1297 represents a potential therapeutic target for liver cancer treatment.
Keywords:
expressionliver cancermiRNApathway analysistarget genes

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