Korean J Pathol.
2004 Feb;38(1):8-14.
Expression of CD43 in Colorectal Adenocarcinom
- Affiliations
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- 1Department of Pathology, Kangwon National University College of Medicine, Korea.
- 2Department of Pathology, Hallym University College of Medicine, Korea.
- 3Department of Surgery, Kangwon National University College of Medicine, Korea.
- 4Clinical Research Institute, Kangwon National University Hospital, Chuncheon, Korea.
Abstract
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BACKGROUND: CD43 is a sialoglycoprotein that is highly expressed on most leukocytes, except on B lymphocytes and dendritic cells. CD43 has been reported to be involved in the adhesion and apoptosis of lymphocytes. Although the aberrant expression of CD43 antigen in non-lymphoid tissues has been reported, the expression of the CD43 antigen in gastrointestinal malignancies is not well studied. Here, we studied the expression of CD43 in colon adenocarcinoma using the anti-CD43 monoclonal antibody developed in our laboratory.
METHODS
Thirty patients who had undergone surgical resection for colorectal carcinoma were recruited. The expression of CD43 molecule was determined by analyzing the formalin-fixed, paraffin-embedded specimens immunohistochemically using our newly developed anti-CD43 mAb (K06). The results obtained by the immunohistochemical analysis correlated to the clinicopatho-logical parameters.
RESULTS
The expression of CD43 were found in 20 out of 30 colorectal carcinoma cases. The expression of CD43 antigen is higher in well differentiated adenocarcinomas than poorly or moderately differentiated adenocarcinomas.
CONCLUSIONS
The new anti-CD43 mAb might be helpful for the detection of the expression of CD43 on colorectal carcinoma cells. Further studies are required to assess the relationship between the CD43 expression and the colorectal carcinogenesis.
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