Search results
Results From The WOW.Com Content Network
Furthermore, the product of PTGS2 (COX-2), PGH 2 is converted by prostaglandin E 2 synthase into PGE 2, which in turn can stimulate cancer progression. Consequently, inhibiting PTGS2 (COX-2) may have benefit in the prevention and treatment of these types of cancer. [29] [30] COX-2 expression was found in human idiopathic epiretinal membranes. [31]
The COX-2 enzyme was discovered in 1988 by Daniel Simmons, a Brigham Young University researcher. [30] The mouse COX-2 gene was cloned by UCLA scientist Harvey Herschman, a finding published in 1991. [31] The basic research leading to the discovery of COX-2 inhibitors has been the subject of at least two lawsuits.
COX is a common target for anti-inflammatory drugs. The most significant difference between the isoenzymes, which allows for selective inhibition, is the substitution of isoleucine at position 523 in COX-1 with valine in COX-2. The smaller Val 523 residue in COX-2 allows access to a hydrophobic side-pocket in the enzyme (which Ile 523 ...
In 1991 the existence of the COX-2 enzyme was confirmed by being cloned by Dr. Dan Simmons at Brigham Young University. Before the confirmation of COX-2 existence, the Dupont company had developed a compound, DuP-697, that was potent in many anti-inflammatory assays but did not have the ulcerogenic effects of NSAIDs. Once the COX-2 enzyme was ...
Rofecoxib is a selective COX-2 inhibitor, or "coxib". Though the class of coxibs includes several agents, degrees of COX-2 selectivity vary among them, with celecoxib (Celebrex) being the least COX-2 selective, and rofecoxib (Vioxx), valdecoxib (Bextra), and etoricoxib (Arcoxia), being highly COX-2 selective. [10]
17709 Ensembl ENSG00000198712 ENSMUSG00000064354 UniProt P00403 P00405 RefSeq (mRNA) n/a n/a RefSeq (protein) n/a NP_904331 Location (UCSC) Chr M: 0.01 – 0.01 Mb Chr M: 0.01 – 0.01 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse Location of the MT-CO2 gene in the human mitochondrial genome. MT-CO2 is one of the three cytochrome c oxidase subunit mitochondrial genes (orange boxes ...
There are two isozymes of COX encoded by distinct gene products: a constitutive COX-1 (this enzyme) and an inducible COX-2, which differ in their regulation of expression and tissue distribution. The expression of these two transcripts is differentially regulated by relevant cytokines and growth factors. [9]
Although prostacyclin is considered an independent mediator, it is called PGI 2 (prostaglandin I 2) in eicosanoid nomenclature, and is a member of the prostanoids (together with the prostaglandins and thromboxane). PGI 2, derived primarily from COX-2 in humans, is the major arachidonate metabolite released from the vascular endothelium. This is ...