Renal xenografts from triple-transgenic pigs are not hyperacutely rejected but cause coagulopathy in non-immunosuppressed baboons

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dc.contributor.authorCowan, P.
dc.contributor.authorCowan, A.
dc.contributor.authorBarlow, H.
dc.contributor.authorBrown, A.
dc.contributor.authorChen, C.
dc.contributor.authorFisicaro, N.
dc.contributor.authorFrancis, D.
dc.contributor.authorGoodman, D.
dc.contributor.authorHan, W.
dc.contributor.authorKurek, M.
dc.contributor.authorNottle, M.
dc.contributor.authorPearse, M.
dc.contributor.authorSalvoris, E.
dc.contributor.authorShinkel, T.
dc.contributor.authorStainsby, G.
dc.contributor.authorStewart, A.
dc.contributor.authord'Apice, A.
dc.date.issued2000
dc.description.abstract<h4>Background</h4>The genetic modification of pigs is a powerful strategy that may ultimately enable successful xenotransplantation of porcine organs into humans.<h4>Methods</h4>Transgenic pigs were produced by microinjection of gene constructs for human complement regulatory proteins CD55 and CD59 and the enzyme alpha1,2-fucosyltransferase (H-transferase, HT), which reduces expression of the major xenoepitope galactose-alpha1,3-galactose (alphaGal). Kidneys from CD55/HT and CD55/CD59/HT transgenic pigs were transplanted into nephrectomised, nonimmunosuppressed adult baboons.<h4>Results</h4>In several lines of transgenic pigs, CD55 and CD59 were expressed strongly in all tissues examined, whereas HT expression was relatively weak and did not significantly reduce alphaGal. Control nontransgenic kidneys (n=4) grafted into baboons were hyperacutely rejected within 1 hr. In contrast, kidneys from CD55/HT pigs (n=2) were rejected after 30 hr, although kidneys from CD55/CD59/HT pigs (n=6) maintained function for up to 5 days. In the latter grafts, infiltration by macrophages, T cells, and B cells was observed at days 3 and 5 posttransplantation. The recipients developed thrombocytopenia and abnormalities in coagulation, manifested in increased clotting times and an elevation in the plasma level of the fibrin degradation product D-dimer, within 2 days of transplantation. Treatment with low molecular weight heparin prevented profound thrombocytopenia but not the other aspects of coagulopathy.<h4>Conclusions</h4>Strong expression of CD55 and CD59 completely protected porcine kidneys from hyperacute rejection and allowed a detailed analysis of xenograft rejection in the absence of immunosuppression. Coagulopathy appears to be a common feature of pig-to-baboon renal transplantation and represents yet another major barrier to its clinical application.
dc.description.statementofresponsibilityCowan, Peter J.; Aminian, Atousa; Barlow, Helen; Brown, Ainslie A.; Chen, Chao-Guang; Fisicaro, Nella; Francis, David M. A.; Goodman, David J.; Han, Wenruo; Kurek, Margarita; Nottle, Mark B.; Pearse, Martin J.; Salvaris, Evelyn; Shinkel, Trixie A.; Stainsby, Gerard V.; Stewart, Andrew B.; d’Apice, Anthony J. F.
dc.identifier.citationTransplantation, 2000; 69(12):2504-2515
dc.identifier.doi10.1097/00007890-200006270-00008
dc.identifier.issn0041-1337
dc.identifier.issn1534-6080
dc.identifier.orcidNottle, M. [0000-0001-7625-5542]
dc.identifier.urihttp://hdl.handle.net/2440/8524
dc.language.isoen
dc.publisherLippincott Williams & Wilkins
dc.rightsCopyright: © 2000 Lippincott Williams & Wilkins, Inc.
dc.source.urihttps://doi.org/10.1097/00007890-200006270-00008
dc.subjectKidney
dc.subjectAnimals
dc.subjectSwine
dc.subjectPapio
dc.subjectMice
dc.subjectBlood Coagulation Disorders
dc.subjectFucosyltransferases
dc.subjectKidney Transplantation
dc.subjectTransplantation, Heterologous
dc.subjectImmunohistochemistry
dc.subjectGraft Rejection
dc.subjectCD59 Antigens
dc.subjectImmunosuppression Therapy
dc.subjectGalactoside 2-alpha-L-fucosyltransferase
dc.titleRenal xenografts from triple-transgenic pigs are not hyperacutely rejected but cause coagulopathy in non-immunosuppressed baboons
dc.typeJournal article
pubs.publication-statusPublished

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