• 1.Department of General Surgery, Qingdao Municipal Hospital, Qingdao 266011, Shandong Province, China;;
  • 2.Department of Pathology, Qingdao Municipal Hospital, Qingdao 266011, Shandong Province, China;
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Objective To study hepatocyte growth factor (HGF) and its receptor (c-met) expressions in human colorectal cancer and non-neoplasm colorectal mucosa, and the relationship with tumor angiogenesis.
Methods Tissue microarrays (TMAs) were made up of 80 cases of colorectal cancer and 80 cases of nonneoplasm colorectal mucosa. The expressions of HGF and c-met were detected by immunohistochemistry (SP). CD105 was used as a marker to account microvessel density (MVD) in tumor tissue.
Results HGF was over expressed in 48 cases and c-met was over expressed in 63 cases of colorectal cancer tissue, and the correlation between HGF and c-met positive expression was significant (r=0.231, P lt;0.05). The high expression rate of HGF and cmet in colorectal cancer were significantly higher than that in non-neoplasm colorectal mucosa (χ2=35.387, P lt;0.05; χ2=59.854, P lt;0.05) of colorectal cancer. The overexpression of HGF was correlated with lymph node metastasis (χ2=4.743, P lt;0.05) and TNM staging (χ2=5.576, P lt;0.05). The overexpression of c-met was correlated with differentiation (χ2=15.767, P lt;0.05) and lymph node metastasis (χ2=5.765, P lt;0.05) of colorectal cancer. MVD was different between overexpression and lowexpression colorectal cancer tissues of HGF and cmet (t=2.150, P lt;0.05; t=2.052, P lt;0.05). There was statistical correlation between HGF and cmet overexpression (r=0.259, P lt;0.05). The overexpressions of HGF and cmet were correlated with lymph metastasis in moderate differentiation cancer (χ2=13.154, P lt;0.05; χ2=5.371, P lt;0.05). Conclusions The overexpressions of HGF and c-met in colorectal cancer may be related with tumor angiogenesis. Detecting the expressions of HGF and c-met is valuable to estimate the biological character of colorectal cancer.

Citation: LIANG Yibo ,CUI Lin,YU Jianxian,JI Ping. Expression of HGF and c-met Detected by Tissue Microarray and Relationship with Tumor Angiogenesis in Human Colorectal Cancer. CHINESE JOURNAL OF BASES AND CLINICS IN GENERAL SURGERY, 2010, 17(7): 713-718. doi: Copy