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PABPC1 exerts carcinogenesis in gastric carcinoma by targeting miR-34c

Jie Zhu1, Hao Ding1, Xiaohong Wang1

  • 1Department of General Surgery, Huadong Hospital Shanghai 200040.

International Journal of Clinical and Experimental Pathology
|June 23, 2015
PubMed

Insights

Poly(A)-binding protein 1 (PABPC1) acts as an oncogene in gastric cancer, promoting tumor growth and survival. Its upregulation in gastric carcinoma tissues correlates with poor patient prognosis and is linked to miR-34c regulation.

Area of Science:

  • Molecular Oncology
  • Gastrointestinal Cancer Research

Background:

  • Gastric carcinoma is a leading cause of cancer death globally, with its underlying mechanisms incompletely understood.
  • Poly(A)-binding protein 1 (PABPC1) is crucial for mRNA processing, including translation and decay, and has been implicated in carcinogenesis.

Purpose of the Study:

  • To investigate the role of PABPC1 as an oncogenic protein in gastric carcinoma.
  • To elucidate the functional mechanisms by which PABPC1 influences gastric cancer progression and survival.

Main Methods:

  • Analysis of PABPC1 expression levels in gastric carcinoma tissues.
  • In vitro and in vivo studies to assess the impact of PABPC1 on cell proliferation, transformation, and apoptosis.
  • Investigation of the regulatory relationship between PABPC1 and microRNA-34c (miR-34c).

Main Results:

  • PABPC1 expression is significantly upregulated in gastric carcinoma tissues.
  • High PABPC1 expression is associated with poor patient survival.
  • PABPC1 knockdown inhibits gastric cancer cell proliferation and transformation, and induces apoptosis by modulating pro- and anti-apoptotic proteins.
  • PABPC1 directly targets and regulates miR-34c, which is essential for PABPC1's oncogenic functions.

Conclusions:

  • PABPC1 functions as an oncogenic protein in gastric carcinoma.
  • PABPC1 promotes gastric cancer cell growth and survival, partly through its regulation of miR-34c.
  • Targeting PABPC1 may represent a therapeutic strategy for gastric cancer.
Keywords:
PABPC1carcinogenesisgastric carcinomamiR-34c

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