منابع مشابه
Prostaglandin E synthase, a terminal enzyme for prostaglandin E2 biosynthesis.
Biosynthesis of prostanoids is regulated by three sequential enzymatic steps, namely phospholipase A2 enzymes, cyclooxygenase (COX) enzymes, and various lineagespecific terminal prostanoid synthases. Prostaglandin E synthase (PGES), which isomerizes COX-derived PGH2 specifically to PGE2, occurs in multiple forms with distinct enzymatic properties, expressions, localizations and functions. Two o...
متن کاملCurcumin blocks prostaglandin E2 biosynthesis through direct inhibition of the microsomal prostaglandin E2 synthase-1.
Prostaglandin E(2) (PGE(2)) plays a crucial role in the apparent link between tumor growth and chronic inflammation. Cyclooxygenase (COX)-2 and microsomal PGE(2) synthase-1, which are overexpressed in many cancers, are functionally coupled and thus produce massive PGE(2) in various tumors. Curcumin, a polyphenolic beta-diketone from tumeric with anti-carcinogenic and anti-inflammatory activitie...
متن کاملLicofelone suppresses prostaglandin E2 formation by interference with the inducible microsomal prostaglandin E2 synthase-1.
The anti-inflammatory drug licofelone [=ML3000; 2-[6-(4-chlorophenyl)-2,2-dimethyl-7-phenyl-2,3-dihydro-1H-pyrrolizin-5-yl] acetic acid], currently undergoing phase III trials for osteoarthritis, inhibits the prostaglandin (PG) and leukotriene biosynthetic pathway. Licofelone was reported to suppress the formation of PGE(2) in various cell-based test systems, but the underlying molecular mechan...
متن کاملMicrosomal prostaglandin E synthase-1: the inducible synthase for prostaglandin E2
Microsomal prostaglandin E synthase-1 (mPGES-1) is an inducible enzyme that catalyzes the conversion of prostaglandin (PG)H2 to PGE2. Proinflammatory stimuli markedly increase levels of mPGES-1 expression both in vivo and in vitro. mPGES-1 knockout studies and animal models of inflammatory arthritis also provide a strong basis for the contribution of mPGES-1 in the increased local production of...
متن کاملDevelopmental regulation of prostaglandin E2 synthase in porcine ductus arteriosus.
The synthesis of PGE(2), the major vasodilator prostanoid of the ductus arteriosus (DA), is catalyzed by PGE(2) synthases (PGES). The factors implicated in increased PGE(2) synthesis in the perinatal DA are not known. We studied the developmental changes of PGES along with that of cyclooxygenase (COX)-2 and cytosolic phospholipase A(2) (cPLA(2)) in the DA of fetal (75-90% gestation) and immedia...
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ژورنال
عنوان ژورنال: Ensho Saisei
سال: 2000
ISSN: 1346-8022,1880-5795
DOI: 10.2492/jsir.21.577