Overexpression of Csk-binding protein decreases growth, invasion, and migration of esophageal carcinoma cells by controlling Src activation

World J Gastroenterol. 2015 Feb 14;21(6):1814-20. doi: 10.3748/wjg.v21.i6.1814.

Abstract

Aim: To investigate the mechanisms by which Csk-binding protein (CBP) inhibits tumor progression in esophageal carcinoma.

Methods: A CBP overexpressing esophageal carcinoma cell line (TE-1) was established. The growth, invasion, and migration of CBP-TE-1 cells, as well as the expression of Src were then determined and compared with those in normal TE-1 cells.

Results: The expression of Src was decreased by the overexpression of CBP in TE-1 cells. The growth, invasion, and migration of TE-1 cells were decreased by the overexpression of CBP.

Conclusion: This study indicates that CBP may decrease the metastasis of esophageal carcinoma by inhibiting the activation of Src. CBP may be a potential tumor suppressor and targeting the CBP gene may be an alternative strategy for the development of therapies for esophageal carcinoma.

Keywords: Cell growth; Csk-binding protein; Esophageal carcinoma; Invasion; Migration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adaptor Proteins, Signal Transducing / genetics
  • Adaptor Proteins, Signal Transducing / metabolism*
  • Carcinoma / enzymology*
  • Carcinoma / genetics
  • Carcinoma / secondary
  • Cell Line, Tumor
  • Cell Movement*
  • Cell Proliferation*
  • Enzyme Activation
  • Esophageal Neoplasms / enzymology*
  • Esophageal Neoplasms / genetics
  • Esophageal Neoplasms / pathology
  • Gene Expression Regulation, Enzymologic
  • Gene Expression Regulation, Neoplastic
  • Humans
  • Membrane Proteins / genetics
  • Membrane Proteins / metabolism*
  • Neoplasm Invasiveness
  • Signal Transduction
  • Time Factors
  • Transfection
  • Up-Regulation
  • src-Family Kinases / metabolism*

Substances

  • Adaptor Proteins, Signal Transducing
  • Membrane Proteins
  • PAG1 protein, human
  • src-Family Kinases