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Sorafenib regulating ERK signals pathway in gastric cancer cell

Liu Wei Juan1, Lin Ming En2, Lin Hao3

  • 1Department of Plastic Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou, PR China.

Environmental Toxicology and Pharmacology
|August 20, 2014
PubMed

Insights

Sorafenib effectively inhibits gastric cancer cell growth and spread by reducing ERK pathway activation. This mechanism involves promoting apoptosis and altering key protein expressions, offering a new therapeutic strategy for gastric carcinoma.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Gastric carcinoma is a significant global health concern.
  • The Extracellular signal-Regulated Kinase (ERK) signaling pathway plays a crucial role in cancer development.
  • Understanding the molecular mechanisms of targeted therapies is vital for improving gastric cancer treatment.

Purpose of the Study:

  • To investigate the role of the ERK signaling pathway in gastric carcinoma.
  • To elucidate the mechanism by which sorafenib inhibits gastric cancer cell progression.

Main Methods:

  • Utilized cultured human gastric adenocarcinoma cells (SGC7901).
  • Employed Western blot, MTT assay, and flow cytometric analysis.
  • Assessed protein expression levels, including phosphorylated ERK, caspase-3, bax, cytochrome c, and bcl-2.

Main Results:

  • Sorafenib significantly inhibited proliferation, migration, and invasion of SGC7901 cells.
  • Sorafenib treatment dose-dependently decreased ERK phosphorylation.
  • Sorafenib increased the expression of pro-apoptotic proteins (caspase-3, bax, cytochrome c) and decreased anti-apoptotic protein (bcl-2).

Conclusions:

  • The ERK signaling pathway is closely associated with the development of gastric cancer.
  • Inhibition of gastric cancer progression by sorafenib is partly mediated by the deactivation of ERK phosphorylation.
  • These findings highlight the therapeutic potential of targeting the ERK pathway in gastric cancer treatment.
Keywords:
Cell cycleERK signal pathwayGastric cancerSGC7901

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