PLCE1 suppresses p53 expression in esophageal cancer cells

Cancer Invest. 2014 Jul;32(6):236-40. doi: 10.3109/07357907.2014.905588. Epub 2014 Apr 25.

Abstract

The apoptotic mechanism dysfunction plays a critical role in cancer cell growth and escaping from cancer therapies; the underlying mechanisms are to be further elucidated. This study aims to investigate the role of phospholipase C epsilon 1 (PLCE1) in modulating the apoptosis mechanism in esophageal cancer (Eca) cells. The results showed that Eca cell lines, OE33 and CP-C cells expressed high levels of PLCE1. Knockdown of PLCE1 markedly increased 9.26 folds of the expression of p53 and 13.8 folds of the frequency of apoptotic CP-C cells via modulating the p53 promoter methylation.

Keywords: Apoptosis; Esophageal cancer; P53; Phospholipase C epsilon 1; Signal transducer and activator of transcription 3.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Apoptosis / genetics
  • Carcinoma, Squamous Cell / genetics*
  • Carcinoma, Squamous Cell / metabolism
  • Carcinoma, Squamous Cell / pathology
  • Cell Line, Tumor
  • DNA Methylation / genetics
  • Esophageal Neoplasms / genetics*
  • Esophageal Neoplasms / metabolism
  • Esophageal Neoplasms / pathology
  • Gene Expression Regulation, Neoplastic
  • Gene Knockdown Techniques
  • Humans
  • Phosphoinositide Phospholipase C / genetics
  • Phosphoinositide Phospholipase C / metabolism*
  • Promoter Regions, Genetic
  • Tumor Suppressor Protein p53 / biosynthesis*
  • Tumor Suppressor Protein p53 / genetics

Substances

  • TP53 protein, human
  • Tumor Suppressor Protein p53
  • Phosphoinositide Phospholipase C
  • phospholipase C epsilon