期刊
FEBS LETTERS
卷 584, 期 9, 页码 1879-1886出版社
WILEY
DOI: 10.1016/j.febslet.2009.11.089
关键词
Glycosphingolipid; Lipid raft; Vero/Shiga toxin; Gp120
资金
- CIHR
- Canfar
- Ontario HIV Treatment Network
The glycosphingolipid globotriaosyl ceramide, (Gal alpha 1-4Gal beta 1-4 glucosyl ceramide-Gb(3)) also known as CD77 and the P-k blood group antigen, is bound by both verotoxins and by the HIV adhesin, gp120. Gb(3) plays an important receptor role in VT induced hemolytic uremic syndrome (HUS) and HIV infection. The organization of glycolipids, including Gb(3), into lipid rafts is central to both pathologies. The fatty acid heterogeneity within the Gb(3) lipid moiety plays a central role in assembly within such ordered domains. Differential binding of verotoxins and gp120 to such Gb(3) isoforms in model and cell membranes indicates a significant role in the eventual pathogenic outcome. HUS may provide the first example whereby membrane Gb(3) organization provides a predictor for tissue selective in vivo pathology. (C) 2009 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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