The platelet receptor for type III collagen (TIIICBP) is present in platelet membrane lipid microdomains (rafts)
Abstract Platelet interactions with collagen are orchestrated by the presence or the migration of platelet receptor(s) for collagen into lipid rafts, which are specialized lipid microdomains from the platelet plasma membrane enriched in signalling proteins. Electron microscopy shows that in resting platelets, TIIICBP, a receptor specific for type III collagen, is present on the platelet membrane and associated with the open canalicular system, and redistributes to the platelet membrane upon platelet activation. After platelet lysis by 1% Triton X-100 and the separation of lipid rafts on a discontinuous sucrose gradient, TIIICBP is recovered in lipid raft-containing fractions and Triton X-100 insoluble fractions enriched in cytoskeleton proteins. Platelet aggregation, induced by type III collagen, was inhibited after disruption of the lipid rafts by cholesterol depletion, whereas platelet adhesion under static conditions did not require lipid raft integrity. These results indicate that TIIICBP, a platelet receptor involved in platelet interaction with type III collagen, is localized within platelet lipid rafts where it could interact with other platelet receptors for collagen (GP VI and α2β1 integrin) for efficient platelet activation..
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2005 |
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| Erschienen: |
2005 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:125 |
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| Enthalten in: |
Histochemistry and cell biology - 125(2005), 4 vom: 05. Okt., Seite 407-417 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Maurice, Pascal [VerfasserIn] |
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| Links: |
Volltext [lizenzpflichtig] |
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| Anmerkungen: |
© Springer-Verlag 2005 |
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| doi: |
10.1007/s00418-005-0076-y |
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| PPN (Katalog-ID): |
OLC2105547729 |
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| 100 | 1 | |a Maurice, Pascal |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a The platelet receptor for type III collagen (TIIICBP) is present in platelet membrane lipid microdomains (rafts) |
| 264 | 1 | |c 2005 | |
| 336 | |a Text |b txt |2 rdacontent | ||
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| 520 | |a Abstract Platelet interactions with collagen are orchestrated by the presence or the migration of platelet receptor(s) for collagen into lipid rafts, which are specialized lipid microdomains from the platelet plasma membrane enriched in signalling proteins. Electron microscopy shows that in resting platelets, TIIICBP, a receptor specific for type III collagen, is present on the platelet membrane and associated with the open canalicular system, and redistributes to the platelet membrane upon platelet activation. After platelet lysis by 1% Triton X-100 and the separation of lipid rafts on a discontinuous sucrose gradient, TIIICBP is recovered in lipid raft-containing fractions and Triton X-100 insoluble fractions enriched in cytoskeleton proteins. Platelet aggregation, induced by type III collagen, was inhibited after disruption of the lipid rafts by cholesterol depletion, whereas platelet adhesion under static conditions did not require lipid raft integrity. These results indicate that TIIICBP, a platelet receptor involved in platelet interaction with type III collagen, is localized within platelet lipid rafts where it could interact with other platelet receptors for collagen (GP VI and α2β1 integrin) for efficient platelet activation. | ||
| 650 | 4 | |a Platelets | |
| 650 | 4 | |a Lipid rafts | |
| 650 | 4 | |a Collagen | |
| 650 | 4 | |a Platelet receptors | |
| 700 | 1 | |a Waeckel, Ludovic |4 aut | |
| 700 | 1 | |a Pires, Viviane |4 aut | |
| 700 | 1 | |a Sonnet, Pascal |4 aut | |
| 700 | 1 | |a Lemesle, Monique |4 aut | |
| 700 | 1 | |a Arbeille, Brigitte |4 aut | |
| 700 | 1 | |a Vassy, Jany |4 aut | |
| 700 | 1 | |a Rochette, Jacques |4 aut | |
| 700 | 1 | |a Legrand, Chantal |4 aut | |
| 700 | 1 | |a Fauvel-Lafève, Françoise |4 aut | |
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| 952 | |d 125 |j 2005 |e 4 |b 05 |c 10 |h 407-417 | ||