Posttranscriptional Regulation of Cyclooxygenase 2 Expression in Colorectal Cancer

Abstract excerpt

Cyclooxygenase (COX)-2 enzyme catalyzes the rate-limiting step of prostaglandin formation in pathogenic states, and overexpression of COX-2 occurs at multiple stages of colon carcinogenesis, allowing elevated prostaglandin synthesis to occur in the tumor microenvironment. In normal cells, COX-2 expression levels are potently regulated at the posttranscriptional level through various RNA sequence elements present...

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