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Experimental study on cryopreservation of platelets / 中国实验血液学杂志
Journal of Experimental Hematology ; (6): 408-411, 2007.
Artigo em Chinês | WPRIM | ID: wpr-230257
ABSTRACT
The study was purposed to develop a novel cryopreserved agent (CPA) for platelets, to investigate the morphology of cryopreserved platelets in different CPA and the CD62P expression on membrane of platelets after stimulating by thrombin, as well as to compare the effect of adding UDP-Gal on preserved efficiency of preservation solutions. A novel cryopreserved agent consisting of 2% DMSO, thrombosol and UDP-Gal was developed on basis of using higher concentration of DMSO. The morphology of chilled platelets was observed by transmission electron microscope and compared with fresh platelets. The expression of CD62P on the membrane of platelets was detected at 0, l, 3 months. The results indicated that the significant effect of cryopreservation on morphology of platelets was found according to percentages of round, dendritic and irregular shapes of cryopreserved platelets. The protective effects of 2% DMSO + thrombosol and 2% DMSO + thrombosol + UDP-Gal were better than that of 5% DMSO. Compared with fresh platelets, the expression of CD62P on platelet membrane decreased obviously after cryopreservation, but not observed difference at preservation for 1 month and 3 months, as well as among 3 kinds of different CPA. It is concluded that the protective effects of 2% DMSO + thrombosol and 2% DMSO + thrombosol + UDP-Gal on morphology of platelets are similar, but better than that 5% DMSO. The reaction of cryopreserved platelets to thrombin decreases, while the significant difference is not found among these 3 kinds of CPA. The addition of UDP-Gal to cryopreserved agents not show the protective effect on platelets.
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Farmacologia / Uridina Difosfato Galactose / Plaquetas / Preservação de Sangue / Criopreservação / Dimetil Sulfóxido / Selectina-P / Crioprotetores / Genética / Métodos Limite: Humanos Idioma: Chinês Revista: Journal of Experimental Hematology Ano de publicação: 2007 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Farmacologia / Uridina Difosfato Galactose / Plaquetas / Preservação de Sangue / Criopreservação / Dimetil Sulfóxido / Selectina-P / Crioprotetores / Genética / Métodos Limite: Humanos Idioma: Chinês Revista: Journal of Experimental Hematology Ano de publicação: 2007 Tipo de documento: Artigo