Leukotrien E4
Leukotrien E4 je cisteinilni leukotrien koji učestvuje u inflamaciji. Poznato je da ga proizvodi nekoliko tipova belih krvnih zrnaca, uključujući eozinofili, mastociti, tkivo makrofaga, i bazofili, i nedavno je utvrđeno da ga proizvode trombociti pričvšćeni za neutrofile.[4] On se formira putem sekvencijalne konverzije od LTC4 do LTD4 i zatim do LTE4, što je krajnji i najstabilniji cisteinilni leukotrien.[5] U poređenju sa kratkim poluživotima LTC4 i LTD4, LTE4 je relativno stabilan i akumulira se u kondenzatu daha, plazmi, i u urinu, što ga čini dominatnim cisteinil leukotrienom u biološkim fluidima.[6] Merenja LTE4, posebno u urinu, se često vrše u kliničkim ispitivanjima.
Nazivi | |
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Preferisani IUPAC naziv
Leukotrien E4 | |
Sistemski IUPAC naziv
6-[(2-amino-2-karboksietil)sulfanil]-5-hidroksikosa-7,9,11,14-tetraenoinska kiselina | |
Identifikacija | |
3D model (Jmol)
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ChEBI | |
ChemSpider | |
KEGG[1] | |
MeSH | Leukotriene+E4 |
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Svojstva | |
C23H37NO5S | |
Molarna masa | 439,61 |
Ukoliko nije drugačije napomenuto, podaci se odnose na standardno stanje materijala (na 25 °C [77 °F], 100 kPa). | |
Reference infokutije | |
Povišena produkcija i ekskrecija LTE4 je vezana za nekoliko respiratornih bolesti, i urinarni nivoi LTE4 su povišeni tokom ozbiljnih napada astme, a posebno su visoki kod ljudi sa aspirinom indukovanom astmom.[7]
Reference
уреди- ^ Joanne Wixon; Douglas Kell (2000). „Website Review: The Kyoto Encyclopedia of Genes and Genomes — KEGG”. Yeast. 17 (1): 48—55. doi:10.1002/(SICI)1097-0061(200004)17:1<48::AID-YEA2>3.0.CO;2-H.
- ^ Li Q, Cheng T, Wang Y, Bryant SH (2010). „PubChem as a public resource for drug discovery.”. Drug Discov Today. 15 (23-24): 1052—7. PMID 20970519. doi:10.1016/j.drudis.2010.10.003.
- ^ Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1.
- ^ Laidlaw TM, Kidder MS, Bhattacharyya N, Xing W, Shen S, Milne GL, Castells MC, Chhay H, Boyce JA. Cysteinyl leukotriene overproduction in aspirin exacerbated respiratory disease is driven by platelet-adherent leukocytes. Blood. 2012;119(16):3790-8
- ^ Lee CW, Lewis RA, Corey EJ, Austen KF. Conversion of leukotriene D4 to leukotriene E4 by a dipeptidase released from the specific granule of human polymorphonuclear leucocytes. Immunology 1983; 48:27-35
- ^ Sala A, Voelkel N, Maclouf J, Murphy RC. Leukotriene E4 elimination and metabolism in normal human subjects. J Biol Chem 1990; 265:21771-8
- ^ Lee TH, Christie PE. Leukotrienes and aspirin induced asthma. Thorax 1993; 48(12): 1189–1190
Literatura
уреди- Lipkowitz, Myron A. and Navarra, Tova (2001) The Encyclopedia of Allergies (2nd ed.) Facts on File, New York, p. 167, ISBN 0-8160-4404-X
- Samuelsson, Bengt (ed.) (2001) Advances in prostaglandin and leukotriene research: basic science and new clinical applications: 11th International Conference on Advances in Prostaglandin and Leukotriene Research: Basic Science and New Clinical Applications, Florence, Italy, June 4–8, 2000 Kluwer Academic Publishers, Dordrecht, ISBN 1-4020-0146-0
- Bailey, J. Martyn (1985) Prostaglandins, leukotrienes, and lipoxins: biochemistry, mechanism of action, and clinical applications Plenum Press, New York, ISBN 0-306-41980-7