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Decreased Srcasm expression in esophageal squamous cell carcinoma in a Chinese population

Yu Qi1, Xin Li, Liang Zhao

  • 1Department of Thoracic Surgery, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, PRC. ekansqy@gmail.com

Anticancer Research
|October 15, 2010
PubMed
Abstract

Insights

Srcasm protein expression is decreased in esophageal squamous cell carcinoma (SCC) compared to normal tissue. This suggests Srcasm may function as a negative regulator in esophageal SCC cell signaling.

Area of Science:

  • Oncology
  • Molecular Biology
  • Cell Signaling

Background:

  • Src-family tyrosine kinases (SFKs) are crucial for cell differentiation and proliferation.
  • Src-activating and signaling molecule (Srcasm) down-regulates SFK activity and promotes cell differentiation.

Purpose of the Study:

  • To investigate alterations in Srcasm expression in esophageal squamous cell carcinoma (SCC) versus normal esophageal epithelium in a Chinese population.

Main Methods:

  • Immunohistochemical staining was used to examine Srcasm expression.
  • 30 paired samples of normal esophageal epithelium and SCC from the same patient were analyzed.

Main Results:

  • Srcasm protein expression levels were significantly decreased in esophageal SCC tissues.
  • A notable reduction in Srcasm was observed when compared to adjacent normal esophageal epithelium.

Conclusions:

  • The diminished Srcasm expression in esophageal SCC suggests a potential role as a tumor suppressor.
  • Srcasm may act as a negative regulator in esophageal SCC cell signaling pathways.

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