Chinese Journal of Tissue Engineering Research ›› 2014, Vol. 18 ›› Issue (19): 3105-3110.doi: 10.3969/j.issn.2095-4344.2014.19.025

Previous Articles     Next Articles

Biological axis of CXC chemokine ligand and expression of stem cell markers in human colorectal cancer tissues as well as their relationship with clinical and pathological characteristics

Huang Zhe   

  1. Department of Colorectal Surgery, Liaoning Cancer Hospital & Institute, Shenyang 110042, Liaoning Province, China
  • Revised:2014-04-08 Online:2014-05-07 Published:2014-05-07
  • Contact: Huang Zhe, M.D., Associate chief physician, Department of Colorectal Surgery, Liaoning Cancer Hospital & Institute, Shenyang 110042, Liaoning Province, China
  • About author:Huang Zhe, M.D., Associate chief physician, Department of Colorectal Surgery, Liaoning Cancer Hospital & Institute, Shenyang 110042, Liaoning Province, China

Abstract:

BACKGROUND: The biological axis of CXC chemokine ligand 12 (CXCL12)/CXC chemokine receptor 4 (CXCR4) plays an important role in the specific metastasis of tumors, whereas the mRNA expression of glycoprotein hormone receptor 5, a stem cell marker, exerts an important effects on tumor proliferation, invasion and metastasis.
OBJECTIVE: To investigate the expressions of CXCL12/CXCR4 and glycoprotein hormone receptor 5 in human colorectal cancer tissues as well as their relationship with clinical and pathological characteristics.
METHODS: Totally 100 colorectal cancer patients admitted at Liaoning Cancer Hospital & Institute from January to June 2013 were enrolled as experimental group, and another 100 healthy volunteers served as control group. Immunohistochemical SP method was used to detect the expression of CXCL12, CXCR4 and glycoprotein hormone receptor 5 mRNA in human colorectal cancer tissues. We analyzed the correlation of CXCL12, CXCR4 and glycoprotein hormone receptor 5 mRNA expression with colorectal cancer patients’ age, sex, tumor size and site, lymphatic metastasis and prognosis.
RESULTS AND CONCLUSION: There was a higher expression of CXCR4 and glycoprotein hormone receptor 5 mRNA, but lower expression of CXCL12 mRNA in the human colorectal cancer tissues. The mRNA expression of CXCR4, CXCL12 and glycoprotein hormone receptor 5 showed no correlation with age, gender, tumor size and site of colorectal cancer patients, but was related to lymphatic metastasis. For colorectal cancer patients with lymphatic metastasis, the expression of CXCR4 and glycoprotein hormone receptor 5 mRNA was higher, but no change was found in the expression of CXCL12 mRNA. The expression of CXCR4 was increased with the degree of tumor malignancy as well as glycoprotein hormone receptor 5 expressed on the surface of gastrointestinal cancer and brain tumor stem cells. These findings indicate that the growth and metastasis of human colorectal cancer tissues are promoted by increasing the expression of CXCR4 and glycoprotein hormone receptor 5 in human colorectal cancer tissues; the CXCL12/CXCR4 biological axis and glycoprotein hormone receptor 5 are expected to become a new target therapy for tumor diagnosis and treatment.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words: colorectal neoplasms, chemotactic factors, receptors, chemokine, chemokine CXCL12

CLC Number: