PNAB and IAB have totally different action on BCM. PNAB inhibit the contractile function of BCM by producing a reversible standstill and by disturbing the synchronization of the BCM-monolayer. IAB are cytotoxic and depend on the presence of complement.
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iScience
March 2023
Hematology Research Unit, Groupe Interdisciplinaire de Génoprotéomique Appliquée (GIGA)-I³, University of Liège, Liège 4000, Belgium.
Graft-versus-host disease (GVHD) remains a serious limitation of allogeneic hematopoietic cell transplantation (allo-HCT). While post-transplant administration of cyclophosphamide (PTCy) is increasingly used as GVHD prophylaxis, its precise mechanisms of action and its impact on graft-versus-leukemia effects have remained debated. Here, we studied the mechanisms of xenogeneic GVHD (xGVHD) prevention by PTCy in different humanized mouse models.
View Article and Find Full Text PDFBiopolymers
July 2011
Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.
Carbohydrate-antibody interactions mediate many cellular processes and immune responses. Carbohydrates expressed on the surface of cells serve as recognition elements for particular cell types, for example, in the ABO(H) blood group system. Antibodies that recognize host-incompatible ABO(H) system antigens exist in the bloodstream of all individuals (except AB individuals), preventing blood transfusion and organ transplantation between incompatible donors and recipients.
View Article and Find Full Text PDFMol Immunol
December 2009
Medicinal Chemistry and Drug Action, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC 3052, Australia.
Antibody-carbohydrate interactions play central roles in stimulating adverse immune reactions. The most familiar example of such a process is the reaction observed in ABO-incompatible blood transfusion and organ transplantation. The ABO blood groups are defined by the presence of specific carbohydrates expressed on the surface of red blood cells.
View Article and Find Full Text PDFXenotransplantation
January 2007
INSERM U643, Nantes, ITERT, Nantes, Univ Nantes, UFR of Medicine, Nantes, France.
Background: In heart allograft in the rat, a sustained costimulation blockade with CTLA4Ig prevents alloreactive T-cell activation and promotes a long-term graft survival through the action of tolerogeneic dendritic cells. It is unclear whether similar mechanisms might occur after xenotransplantation. To test that hypothesis, we have analyzed the action of CTLA4Ig in a model of CD4(+)T cell-mediated xenograft rejection.
View Article and Find Full Text PDFTransplantation
January 2005
Laboratory for Experimental Transplantation, University of Leuven, Herestraat 49, Leuven, B-3000, Belgium.
Background: Leflunomide is a novel immunosuppressive agent with promising activity for xenotransplantation. It is not clear yet which mechanisms of action of leflunomide are responsible for that.
Methods: In a hamster-to-C57BL/6 nude mouse heart transplantation model, a 2-week course of leflunomide was used after transplantation or for pretreating donors.
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