A Dinucleotide Deletion in the CD24 Gene Is a Potential Risk Factor for Colorectal Cancer

The American Surgeon
Lior SegevShiran Shapira

Abstract

CD24 is a sialoglycoprotein anchored to the cell surface via glycosylphosphatidylinositol and is involved in intracellular signaling processes. It plays an important role in the early stages of the multistep process of colorectal carcinogenesis. Several single nucleotide polymorphisms in the CD24 gene are reported to exert a diverse effect on cancer risk. We aimed to elucidate whether CD24 TG/del genetic variants are associated with susceptibility to colorectal cancer (CRC). The study included 179 subjects, 36 with CRC (prior to surgery) and 143 healthy control subjects. Deoxyribonucleic acid was purified from peripheral blood leukocytes, and by using restriction fragment length polymorphism analysis, the CD24 gene was genotyped for the specific genetic variant, TG deletion. Additionally, CD24 protein expression levels were determined by Western blotting analysis. The incidence of the TG/del was higher among the CRC patients compared with healthy controls, 14% and 10%, respectively (P = .54). CD24 protein levels were significantly higher among CRC patients. There were no significant differences in CD24 expression between CRC patients at different stages of the disease or between patients who carry the mutation and those who did...Continue Reading

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Methods Mentioned

BETA
glycosylation
PCR
genotyping
electrophoresis

Software Mentioned

MedCalc

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