دورية أكاديمية
Phospholipids in oxidized LDL not adducted to apoB are recognized by the CD36 scavenger receptor.
العنوان: | Phospholipids in oxidized LDL not adducted to apoB are recognized by the CD36 scavenger receptor. |
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المؤلفون: | Podrez EA; Department of Cell Biology, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, OH 44195, USA., Hoppe G, O'Neil J, Hoff HF |
المصدر: | Free radical biology & medicine [Free Radic Biol Med] 2003 Feb 01; Vol. 34 (3), pp. 356-64. |
نوع المنشور: | Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S. |
اللغة: | English |
بيانات الدورية: | Publisher: Elsevier Science Country of Publication: United States NLM ID: 8709159 Publication Model: Print Cited Medium: Print ISSN: 0891-5849 (Print) Linking ISSN: 08915849 NLM ISO Abbreviation: Free Radic Biol Med Subsets: MEDLINE |
أسماء مطبوعة: | Publication: Tarrytown, NY : Elsevier Science Original Publication: New York : Pergamon, c1987- |
مواضيع طبية MeSH: | Apolipoproteins B/*metabolism , Lipoproteins, LDL/*chemistry , Lipoproteins, LDL/*metabolism , Receptors, Immunologic/*metabolism, Animals ; Apolipoprotein B-100 ; Cells, Cultured ; Female ; Macrophages, Peritoneal/metabolism ; Mice ; Mice, Inbred C57BL ; Oxidation-Reduction ; Protein Binding ; Receptors, Scavenger ; Scavenger Receptors, Class A |
مستخلص: | Previous studies have shown that oxidation of low-density lipoprotein (oxLDL) results in its recognition by scavenger receptors on macrophages. Whereas blockage of lysyl residues on apoB-100 of oxLDL by lipid peroxidation products appears to be critical for recognition by the scavenger receptor class A (SR-A), modification of the lipid moiety has been suggested to be responsible for recognition by the scavenger class B receptor, CD36. We studied the recognition by scavenger receptors of oxidized LDL in which lysyl residues are blocked prior to oxidation through methylation [ox(m)LDL]. This permits us to minimize any contribution of modified apoB-100 to the recognition of oxLDL, but does not disrupt the native configuration of lipids in the particle. We found that ox(m)LDL was recognized by receptors on mouse peritoneal macrophages (MPM) almost as well as oxLDL. Ox(m)LDL was recognized by CD36-transfected cells but not by SR-A-transfected cells. Oxidized phospholipids (oxPC) transferred from oxLDL or directly from oxPC to LDL, conveyed recognition by CD36-transfected cells, confirming that CD36 recognized unbound oxidized phospholipids in ox(m)LDL. Collectively, these results suggest that oxPC not adducted to apoB within the intact oxLDL particle are recognized by the macrophage scavenger receptor CD36, that these lipids are not recognized by SR-A, and that they can transfer from oxidized to unoxidized LDL and induce CD36 recognition. |
معلومات مُعتمدة: | HL 53315 United States HL NHLBI NIH HHS |
المشرفين على المادة: | 0 (Apolipoprotein B-100) 0 (Apolipoproteins B) 0 (Lipoproteins, LDL) 0 (Msr1 protein, mouse) 0 (Receptors, Immunologic) 0 (Receptors, Scavenger) 0 (Scavenger Receptors, Class A) 0 (oxidized low density lipoprotein) |
تواريخ الأحداث: | Date Created: 20030125 Date Completed: 20031218 Latest Revision: 20190826 |
رمز التحديث: | 20231215 |
DOI: | 10.1016/s0891-5849(02)01294-7 |
PMID: | 12543251 |
قاعدة البيانات: | MEDLINE |
تدمد: | 0891-5849 |
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DOI: | 10.1016/s0891-5849(02)01294-7 |