Biomaterial Database

Regulation of prostaglandin D2 and E2 receptor binding in the central nervous system. 1993

H Morii, and Y Watanabe

Department of Neuroscience, Osaka Bioscience Institute, Japan.

Prostaglandin (PG) D2 and PGE2 receptor binding activities are regulated in various fashions. The protein phosphorylation by exogenous cAMP-dependent protein kinase or calmodulin-dependent protein kinase II significantly increased PGE2 binding activity through an increase in the apparent amount of the maximal binding, suggesting that the PGE2 receptor may be regulated through protein phosphorylation-dephosphorylation. Other possible regulatory mechanisms were found as the result of studies on functional modification of glycoconjugates. Pretreatment with glycoprotein-specific endoglycosidases (peptide N-glycohydrolase F, endo-alpha-N-acetylgalactosaminidase) decreased both PGD2 and PGE2 receptor binding activities and consequently these activities became nonspecific ones. In addition, these binding activities were increased by the addition of a ganglioside or cerebroside mixture, but not ceramide. The addition of separate purified glycolipids showed more specifically their effect on each PG binding. PGD2 binding activity was increased by GD1a and GQ1b and decreased by GM1 and GT1a, while PGE2 binding activity was increased by GQ1b and galactocerebroside. In such a way, PG receptors may require some specific microenvironment for their maximal binding activity.

UI	MeSH Term	Description	Entries
D010766	Phosphorylation	The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety.	Phosphorylations
D011506	Proteins	Linear POLYPEPTIDES that are synthesized on RIBOSOMES and may be further modified, crosslinked, cleaved, or assembled into complex proteins with several subunits. The specific sequence of AMINO ACIDS determines the shape the polypeptide will take, during PROTEIN FOLDING, and the function of the protein.	Gene Products, Protein,Gene Proteins,Protein,Protein Gene Products,Proteins, Gene
D011971	Receptors, Immunologic	Cell surface molecules on cells of the immune system that specifically bind surface molecules or messenger molecules and trigger changes in the behavior of cells. Although these receptors were first identified in the immune system, many have important functions elsewhere.	Immunologic Receptors,Immunologic Receptor,Immunological Receptors,Receptor, Immunologic,Receptors, Immunological
D011982	Receptors, Prostaglandin	Cell surface receptors that bind prostaglandins with high affinity and trigger intracellular changes which influence the behavior of cells. Prostaglandin receptor subtypes have been tentatively named according to their relative affinities for the endogenous prostaglandins. They include those which prefer prostaglandin D2 (DP receptors), prostaglandin E2 (EP1, EP2, and EP3 receptors), prostaglandin F2-alpha (FP receptors), and prostacyclin (IP receptors).	Prostaglandin Receptors,Prostaglandin Receptor,Receptor, Prostaglandin,Receptors, Prostaglandins,Prostaglandins Receptors
D001921	Brain	The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM.	Encephalon
D002241	Carbohydrates	A class of organic compounds composed of carbon, hydrogen, and oxygen in a ratio of Cn(H2O)n. The largest class of organic compounds, including STARCH; GLYCOGEN; CELLULOSE; POLYSACCHARIDES; and simple MONOSACCHARIDES.	Carbohydrate
D006017	Glycolipids	Any compound containing one or more monosaccharide residues bound by a glycosidic linkage to a hydrophobic moiety such as an acylglycerol (see GLYCERIDES), a sphingoid, a ceramide (CERAMIDES) (N-acylsphingoid) or a prenyl phosphate. (From IUPAC's webpage)	Glycolipid
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D015230	Prostaglandin D2	The principal cyclooxygenase metabolite of arachidonic acid. It is released upon activation of mast cells and is also synthesized by alveolar macrophages. Among its many biological actions, the most important are its bronchoconstrictor, platelet-activating-factor-inhibitory, and cytotoxic effects.	11-Dehydroprostaglandin F2alpha,PGD2,11-Dehydroprostaglandin F2 alpha,11 Dehydroprostaglandin F2 alpha,11 Dehydroprostaglandin F2alpha,D2, Prostaglandin,F2 alpha, 11-Dehydroprostaglandin,F2alpha, 11-Dehydroprostaglandin,alpha, 11-Dehydroprostaglandin F2
D015232	Dinoprostone	The most common and most biologically active of the mammalian prostaglandins. It exhibits most biological activities characteristic of prostaglandins and has been used extensively as an oxytocic agent. The compound also displays a protective effect on the intestinal mucosa.	PGE2,PGE2alpha,Prostaglandin E2,Prostaglandin E2alpha,PGE2 alpha,Prepidil Gel,Prostaglandin E2 alpha,Prostenon,E2 alpha, Prostaglandin,E2, Prostaglandin,E2alpha, Prostaglandin,Gel, Prepidil,alpha, PGE2,alpha, Prostaglandin E2