Influence of biomateriai on focal adhesion kinase of platelet: ex vivo study / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 350-352, 2006.
Article
de Zh
| WPRIM
| ID: wpr-249602
Bibliothèque responsable:
WPRO
ABSTRACT
This study was aimed to detect the biomaterial-induced phosphorylation level of platelet focal adhesion kinase, a key component of signal transduction pathways. Flat tubings, made from 5 biomaterials: organotin-PVC, PU50, PU60, PU70, and PTFE,were connected to an ex vivo flow circuit with canine femoral artery and vein. After 5 min, the adherent platelets on the inner surface of the tubing were lysed, then FAK and phospho-FAK were examined, using immunoprecipitation and Western blot. The results showed a significant increase in the FAK value on the PVC and PTFE surface,compared to the PUs; among the PUs, the FAK value decreased in the following order: PU70/PU60/PU50. The phospho-FAK value on the five groups of surface decreased in the following order: PVC/PTFE/PU70, PU60, PU50; there was no significant difference among the PUs with regard to the phospho-FAK value. In conclusion, after platelet-material interaction, biomateriais may lead to the phosphorylation of FAK of platelets;the level of phosphorylation of FAK has been positively linked to the thrombogenicity of materials; the phospho-FAK value may be a valid molecular parameter of the haemocompatibility assessment; the FAK value may supply references to the haemocompatibility assessment.
Texte intégral:
1
Indice:
WPRIM
Sujet Principal:
Phosphorylation
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Chirurgie générale
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Matériaux biocompatibles
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Plaquettes
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Test de matériaux
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Chimie
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Focal adhesion protein-tyrosine kinases
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Artère fémorale
/
Veine fémorale
Limites du sujet:
Animals
langue:
Zh
Texte intégral:
Journal of Biomedical Engineering
Année:
2006
Type:
Article