Cytoplasmic phospholipase a2
WebOct 8, 2004 · Arachidonic acid is released from membrane phospholipids by phospholipase A2 (PLA2). Several types of PLA2 are expressed in human cells. Among them … WebMany different forms of phospholipase A2 are made for different functions. Secreted phospholipase A2 is small, whereas the cytoplasmic enzymes are larger, with separate domains that are involved with interaction with …
Cytoplasmic phospholipase a2
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WebCytosolic phospholipase A(2) (cPLA(2)) is identified as a central molecule in NKG2D-mediated cytolysis in cytotoxic T lymphocytes. cPLA2 and IIbbeta3 interact to reinforce each other's functions during IIbbeta3 signaling. the inhibition of cPLA(2)alpha activity affected many of the allergen-dependent, asthma-associated gene expression changes. Web"Cytoplasmic phospholipase A2 levels correlate with apoptosis in human colon tumorigenesis". Clin. Cancer Res. 11 (6): 2265–71. doi: 10.1158/1078-0432.CCR-04-1079. PMID 15788676. Yan W, Jenkins CM, Han X, et al. (2005).
Increased phospholipase A 2 has also been associated with neuropsychiatric disorders such as schizophrenia and pervasive developmental disorders (such as autism), though the mechanisms involved are not known. Isozymes. Human phospholipase A 2 isozymes include: Group I: PLA2G1B; Group II: … See more The enzyme phospholipase A2 (EC 3.1.1.4, PLA2, systematic name phosphatidylcholine 2-acylhydrolase) catalyse the cleavage of fatty acids in position 2 of phospholipids, hydrolyzing the bond between the … See more Phospholipases A2 include several unrelated protein families with common enzymatic activity. Two most notable families are secreted and cytosolic phospholipases A2. … See more PLA2 action can release histamine from rat peritoneal mast cells. It also causes histamine release in human basophils. See more In normal brain cells, PLA2 regulation accounts for a balance between arachidonic acid's conversion into proinflammatory mediators and its reincorporation into … See more The suggested catalytic mechanism of pancreatic sPLA2 is initiated by a His-48/Asp-99/calcium complex within the active site. The calcium ion polarizes the sn-2 carbonyl oxygen while also coordinating with a catalytic water molecule, w5. His … See more Due to the importance of PLA2 in inflammatory responses, regulation of the enzyme is essential. cPLA2 is regulated by phosphorylation and calcium concentrations. cPLA2 is phosphorylated by a MAPK at Serine-505. When phosphorylation is … See more Human phospholipase A2 isozymes include: • Group I: PLA2G1B • Group II: PLA2G2A, PLA2G2C, PLA2G2D, PLA2G2E, PLA2G2F • Group III: PLA2G3 See more WebMay 15, 1993 · Cytoplasmic phospholipase A2 activity and gene expression are stimulated by tumor necrosis factor: dexamethasone blocks the induced synthesis. PNAS Research Article Cytoplasmic phospholipase A2 activity and gene expression are stimulated by tumor necrosis factor: dexamethasone blocks the induced synthesis.
WebApr 1, 2005 · In the following study, we evaluated the influence of genetic deletion of a key intracellular phospholipase, cytoplasmic PLA (2) (cPLA (2)), on azoxymethane-induced colon tumorigenesis. WebDec 8, 2024 · Activation of phospholipase A2 (PLA2) is an essential prerequisite for GPVI stimulated thromboxane A2 (TXA2) generation that induces paracrine platelet activation …
WebJun 18, 1999 · We further show that MIF regulates cytosolic phospholipase A 2 activity via a protein kinase A and ERK dependent pathway and that the glucocorticoid suppression of cytokine-induced cytoplasmic phospholipase A2 activity and arachidonic acid release can be reversed by the addition of recombinant MIF. These studies indicate that the …
WebJan 15, 2000 · Sepsis is defined as the systemic inflammatory response to infection. Phospholipase A 2 (PLA 2) plays an important role in inflammation processes by initiating the production of inflammatory mediators.The role of cytosolic PLA (cPLA 2) has not yet been identified in inflammatory and infectious disease clinical settings.The aim of the … how many books did maurice sendak writeWebMultiple forms of phospholipase A2 may be associated with the production of these metabolites; this study focused on the molecular mechanism(s) by which glucocorticoids control expression of the arachidonyl-selective, … how many books did michael bond writeWebNational Center for Biotechnology Information how many books did maya angelou writeWebJun 19, 2007 · Purified rat Acot7 from brain cytoplasmic extracts ... Arachidonoyl-CoA is the precursor of archidonate in the plasma membrane, which is released by phospholipase A2. Acot7 overexpression might deplete the membrane of this eicosanoid precursor. Conversely, Acot7 itself might generate free arachidonic acid from arachidonoyl-CoA, or … how many books did mickey spillane sellWebPhospholipase A2s constitute a wide group of lipid-modifying enzymes which display a variety of functions in innate immune responses. In this work, we utilized mass spectrometry-based lipidomic approaches to investigate the action of Asp-49 Ca2+-dependent secreted phospholipase A2 (sPLA2) (MT-III) and Lys-49 sPLA2 (MT-II), two … how many books did mitch albom writeWebMay 8, 2024 · The supergroup of cytosolic PLA consists of 6 members that each contain 749 amino acids and share other structural similarities. The … how many books did mlk writeWebCytoplasmic phospholipase A2 metabolites play a critical role in pulmonary tumor metastasis in mice. This study demonstrates that cPLA(2) metabolites play critical roles … how many books did morris gleitzman make