c-Met Expression in Colorectal Carcinoma and Adenomas: Correlation with Clinicopathologic Parameters
Journal of the Korean Society of Coloproctology
; : 205-210, 2004.
Article
in Ko
| WPRIM
| ID: wpr-113834
Responsible library:
WPRO
ABSTRACT
PURPOSE: Hepatocyte growth factor (HGF) stimulates proliferation, migration, and morphogenesis of epithelial cells by specifically binding to its receptor c-met. Abnomalities of the c-met oncogene have been studied in cancers of many organs including thyroid, lung, pancreas, and stomach. However, little is known about the clinical significance of c-met oncogene abnormalities in colorectal carcinomas. In this study, we investigated over- expression of the c-met protein in colorectal adenomas and adenocarcinomas, and analyzed the clinicopathologic significance of this over-expression. METHODS: Expression of the c-met protein localized in colorectal adenoma and adenocarcinoma tissues was analyzed by using immunohistochemistry. The results were compared with clinicopathologic parameters to find clinical correlation. RESULTS: c-met protein was detected in 42.5% (17/40) of colorectal cancers and in 10.0% (4/40) of colorectal adenomas (P= 0.001). In colorectal cancer, the proportion of expression of c-met protein was 0% (0/40) in stage I, 47.6% (10/40) in stage II, 53.8% (7/40) in stage III and, 0% (0/40) in stage IV. c-met protein expression was 18.8% (3/40) in tumors with invasion into the muscularis propria (MP), and 58.3% (14/40) in tumors with invasion beyond the MP. The depth of tumor invasion was a statistically significant factor (P=0.022) for c-met expression. CONCLUSIONS: The c-met protein expression was related to the depth of invasion of colorectal cancer and showed a significant difference in its rate of expression between adenoma and adenocarcinomas.
Key words
Full text:
1
Index:
WPRIM
Main subject:
Oncogenes
/
Pancreas
/
Stomach
/
Thyroid Gland
/
Immunohistochemistry
/
Colorectal Neoplasms
/
Adenocarcinoma
/
Adenoma
/
Hepatocyte Growth Factor
/
Epithelial Cells
Language:
Ko
Journal:
Journal of the Korean Society of Coloproctology
Year:
2004
Type:
Article