CD62, thromboxane B2, and beta-thromboglobulin: A comparison between different markers of platelet activation after contact with biomaterials

Autor: Donatella Granchi, Elisabetta Cenni, S. Gamberini, E. Verri, G. Falsone, D. Cavedagna, Arturo Pizzoferrato
Rok vydání: 1997
Předmět:
Zdroj: Journal of Biomedical Materials Research. 36:289-294
ISSN: 1097-4636
0021-9304
DOI: 10.1002/(sici)1097-4636(19970905)36:3<289::aid-jbm3>3.0.co;2-a
Popis: The authors examined the modifications of some markers of platelet activation after contact with biomaterials. Glycoprotein GMP-140 (CD62) was evaluated by flow cytometry; β-thromboglobulin (β-TG) and thromboxane B2 (TXB2) were determined by radioimmunoassay. Polyethylene terephthalate (PET) induced a remarkable platelet adhesion and a significant increase in β-TG and TXB2, with no increase in CD62 on the nonadherent platelets. Pyrolytic carbon-coated PET (PC) did not induce platelet adhesion after 15 min of contact, but a significant increase in CD62 was detected. After 30 min a significant increase in platelet adhesion as well as the release of β-TG and TXB2 were noted. The increase was lower than that observed for uncoated PET, and after 30 min of contact with PC the increase no longer was observed. © 1997 John Wiley & Sons, Inc. J Biomed Mater Res, 36, 289–294, 1997.
Databáze: OpenAIRE