Survival of baboon biotin-X-N-hydroxysuccinimide and (111)In-oxine-labelled autologous fresh and lyophilized reconstituted platelets
UMass Chan Affiliations
Department of PediatricsDocument Type
Journal ArticlePublication Date
2005-02-01Keywords
AnimalsBiotin
Blood Platelets
Blood Preservation
*Blood Transfusion, Autologous
Cell Survival
*Freeze Drying
Male
Organometallic Compounds
Oxyquinoline
P-Selectin
Papio
Platelet Activation
Platelet Glycoprotein GPIb-IX Complex
*Platelet Transfusion
Succinimides
Hematology
Oncology
Pediatrics
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BACKGROUND AND OBJECTIVES: In accordance with Food and Drug Administration (FDA) regulations, platelets can be stored in the liquid state at 22 degrees C for only 5 days. Platelets frozen with 6% dimethylsulphoxide (DMSO) can be stored at -80 degrees C for 2 years, and platelets frozen with 5% DMSO can be stored at -150 degrees C for 3 years. Studies are being conducted to determine the effects of lyophilization of platelets. In the present study, we assessed the survival of autologous lyophilized-reconstituted platelets in the baboon. MATERIALS AND METHODS: We studied fresh baboon platelets and baboon platelets that had been treated with paraformaldehyde, frozen, lyophilized, thawed and reconstituted. Aliquots of these platelets were labelled with (111)In-oxine or biotin-X-N-hydroxysuccinimide (biotin-X-NHS) before autotransfusion, and measurements were made of the in vivo recovery and lifespan. We also evaluated the response of fresh and lyophilized platelets to in vitro agonists by measuring the level of platelet surface markers and heterotypic aggregates in the peripheral blood following the autotransfusions. RESULTS: The (111)In-oxine- or biotin-X-NHS-labelled lyophilized, reconstituted platelets exhibited survival times of less than 15 min. These platelets did not respond to stimulation with agonists to decrease platelet GPIb and increase platelet P-selectin and platelet GPIIb-IIIa levels 1 min post-transfusion and they accumulated more procoagulant factor V than did the fresh platelets. CONCLUSIONS: Lyophilized reconstituted baboon platelets labelled with (111)In-oxine or biotin-X-NHS before autotransfusion exhibited an in vivo circulation time of less than 15 min. Further study of the lyophilized, reconstituted platelets is required to evaluate their haemostatic function.Source
Vox Sang. 2005 Feb;88(2):122-9. doi: 10.1111/j.1423-0410.2005.00592.xDOI
10.1111/j.1423-0410.2005.00592.xPermanent Link to this Item
http://hdl.handle.net/20.500.14038/43392PubMed ID
15720610Related Resources
Link to article in PubMedae974a485f413a2113503eed53cd6c53
10.1111/j.1423-0410.2005.00592.x
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In vitro testing of fresh and lyophilized reconstituted human and baboon plateletsValeri, C. Robert; Macgregor, Hollace; Barnard, Marc R.; Summaria, L.; Michelson, Alan D.; Ragno, G. (2004-10-01)BACKGROUND: Studies have been performed on human fresh, liquid-preserved, and cryopreserved platelets (PLTs) to assess PLT-adhesive surface receptors, PLT membrane procoagulant activity, PLT aggregation, and thromboxane production. Lyophilization has been developed as a method to preserve PLTs. This study was performed to evaluate these measurements on human and baboon fresh and lyophilized reconstituted PLTs. STUDY DESIGN AND METHODS: In both human and baboon fresh and lyophilized PLTs, aggregation response and PLT production of thromboxane A2 were measured after stimulation, and PLT surface markers P-selectin, glycoprotein (GP) Ib, GPIIb-IIIa, and factor (F) V were measured before and after stimulation. RESULTS: Fresh PLTs responded to the dual agonists arachidonic acid and adenosine diphosphate (ADP) to aggregate and produce thromboxane A2, and in both the PLT surface markers P-selectin and GPIIb-IIIa increased and GPIb decreased after stimulation. Neither human nor baboon lyophilized reconstituted PLTs aggregated to dual agonists, and neither produced thromboxane A2, increased PLT surface markers P-selectin or GPIIb-IIIa, or decreased PLT GPIb after stimulation. Nevertheless, after recalcification the lyophilized reconstituted PLTs accumulated FV to a significantly greater degree than fresh PLTs. CONCLUSIONS: Lyophilized reconstituted PLTs exhibited modification of the PLT membrane that interfered with aggregation and thromboxane production, prevented increases in PLT P-selectin and GPIIb-IIIa and decreases in GPIb after stimulation, and increased FV accumulation after recalcification. The in vitro data suggest that lyophilized PLTs may have reduced in vivo survival. In vivo studies are needed to determine the survival and function of lyophilized PLTs.