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Biochemical and biophysical research communications

Localization of cyclooxygenases-1 and -2, and prostaglandin F synthase in human kidney and renal cell carcinoma.


PMID 16157291

Abstract

Prostaglandin (PG)F2alpha is one of the major prostanoids produced by the kidney, and its renal synthesis is regulated by sodium depletion, potassium depletion, and adrenal steroids. PGF synthase activity is detected in kidney of various mammals. Herein, we demonstrated immunochemically that PGF synthase was localized in proximal tubule of human kidney, together with cyclooxygenase (COX)-1, and that it was localized in human renal cell carcinoma, together with COX-2. These results suggest that PGF synthesized through COX-1 and PGF synthase plays an important physiological role in the kidney and that the expression of COX-2 in kidney is a useful maker for tumorigenesis of the renal call carcinoma in vivo.

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