PATHOLOGY & ONCOLOGY RESEARCHVol. 8 No. 3, 2002

 Article

Expression of CD44s in Human Colorectal Cancer

Mousa KHOURSHEED1, T C MATHEW2, R R MAKAR3, L SONIA1, H ABUL2, S ASFAR1, H AL-SAYER1, H M DASHTI1, A AL-BADER3

1Department of Surgery, Kuwait University, Faculty of Medicine, Safat, Kuwait
2Faculty of Allied Health Sciences, Kuwait University, Faculty of Medicine, Safat, Kuwait
3Department of Pathology, Kuwait University, Faculty of Medicine, Safat, Kuwait

 

CD44s is a cell adhesion molecule, which belongs to the family of hyaluronan binding proteins. Anti-body to CD44s is used to establish the association of its expression with the clinicopathological characteristics of colorectal cancer using immunohistochemical methods. The aim of this study is to investigate the expression of the standard form of CD44 (CD44s) in colorectal cancer tissues as compared to adjacent normal colonic tissues. Furthermore, the level of expression of CD44s in colorectal cancer tissues was correlated with the degree of histological differentiation, Duke’s classification, sex, size and site of the tumor. Immunohistochemical analysis for CD44s was carried out in 49 paraffin-fixed sections of neoplastic colorectal tissues and non-neoplastic ones adjacent to the lesion, by the standard peroxidase-antiperoxidase method. Expression of these antigens were compared in normal and malignant epithelium and stromal cells. The results show that the level of CD44s in the epithelial and stromal cells was significantly higher in the colorectal cancer tissues than the normal ones. However, there was no association between the percentages of expressions of CD44s and the degree of histological differentiation, Duke’s classification, sex or size of the tumor. There was however, a significantly higher expression of CD44s in the epithelium of rectal cancer than that of colonic cancer. This study indicates that the expression of CD44s is significantly higher in colorectal cancer tissues. However, further studies are required to understand its role in tumor progression and metastasis of this disease. Pathology & Oncology Research, Vol 8, Nr 3, 170-174, 2002


Received: Jun 12, 2002; accepted: Aug 5, 2002
Correspondence: Mousa KHOURSHEED, Department of Surgery, Kuwait University, Faculty of Medicine, Safat 13110, Kuwait; Tel: 00965 5319475, Fax: 00965 5319597; E-mail: khoursheed@hsc.kuniv.edu.kw

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