Significance of Bcl-xL in Human Colon Carcinoma

Overview

Journal World J Gastroenterol

Publisher Baishideng Publishing Group

Specialty Gastroenterology

Date 2008 May 22

PMID 18494061

Citations 28

Authors

You-Li Zhang

Li-Qun Pang

Ying Wu

Xiao-Yan Wang

Chong-Qiang Wang

Yu Fan

Affiliations

Soon will be listed here.

Abstract

Aim: To investigate the clinical significance of Bcl-xL gene in the pathogenesis of human colon carcinoma.

Methods: Fifty-six pair tissue samples from patients with colon cancer were collected, and protein level of the Bcl-xL gene was measured by immunohistochemistry method. The correlation of Bcl-xL expression with clinical index was evaluated. After human colon cancer cell line HT29 was transfected with Bcl-xL small interfering RNA (siRNA), the anchorage-independent growth of cancer cells was detected by colony formation in soft agar and invasion ability of cancer cells was determined by a transwell model.

Results: The Bcl-xL expression was higher in cancerous tissue samples than in normal tissue samples (38.78 +/-11.36 vs 0.89 +/- 0.35, P < 0.001), and was associated with the pathological grade, lymph node metastasis and Duke's stage of colorectal carcinoma. Transfection with Bcl-xL siRNA inhibited the colony formation and invasion ability of human colon cancer cell line HT29 in vitro.

Conclusion: Bcl-xL gene plays an important role in carcinogenesis of human colorectal carcinoma and is associated with malignant biological behaviors of human colorectal carcinoma.

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