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- W1983606906 abstract "Purpose of review Deletion of the α1,3-galactosyltransferase (GalT) gene in pigs has removed a major xenoantigen but has not eliminated the problem of dysregulated coagulation and vascular injury. Rejecting GalT knockout organ xenografts almost invariably show evidence of thrombosis and platelet sequestration, and primate recipients frequently develop consumptive coagulopathy. This review examines recent findings that illuminate potential mechanisms of this current barrier to successful xenotransplantation. Recent findings The coagulation response to xenotransplantation differs depending on the type of organ and quite likely the distinct vasculatures. Renal xenografts appear more likely to initiate consumptive coagulopathy than cardiac xenografts, possibly reflecting differential transcriptional responses. Liver xenografts induce rapid and profound thrombocytopenia resulting in recipient death within days due to bleeding; ex-vivo data suggest that liver endothelial cells and hepatocytes are responsible for platelet consumption by a coagulation-independent process. It has been proposed that expression of recipient tissue factor on platelets and monocytes is an important trigger of consumptive coagulopathy. Finally, pigs transgenic for human anticoagulants and antithrombotics are slowly but surely coming on line, but have not yet been rigorously tested to date. Summary Successful control of coagulation dysregulation in xenotransplantation may require different combinatorial pharmacological and genetic strategies for different organs." @default.
- W1983606906 created "2016-06-24" @default.
- W1983606906 creator A5039238202 @default.
- W1983606906 creator A5041621533 @default.
- W1983606906 creator A5067910050 @default.
- W1983606906 date "2011-04-01" @default.
- W1983606906 modified "2023-10-03" @default.
- W1983606906 title "Controlling coagulation dysregulation in xenotransplantation" @default.
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- W1983606906 doi "https://doi.org/10.1097/mot.0b013e3283446c65" @default.
- W1983606906 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3094512" @default.
- W1983606906 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/21415824" @default.
- W1983606906 hasPublicationYear "2011" @default.
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