Antibody-Mediated Rejection—An Ounce of Prevention Is Worth a Pound of Cure

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The presence of preformed, donor-specific alloantibodies inpatients undergoing renal transplantation is associated with a high risk of hyperacute and acute antibody-mediated rejection (ABMR), and often limits potential recipients’ access to organs from living and deceased donors. Over the last decade, understanding of ABMR has improved markedly and given rise to numerous, diverse strategies for the transplantation of allosensitized recipients. Antibody desensitization programs have been developed to allow renal transplant recipients with a willing but antibody-incompatible living donor to undergo successful transplantation, whereas kidney paired exchange schemes circumvent the antibody incompatibility altogether by finding suitable pairs to donors and recipients. Recognizing the complexity of ABMR and the recent developments that have occurred in this important clinical research field, the Roche Organ Transplantation Research Foundation (ROTRF) organized a symposium during the XXIII Congress of The Transplantation Society in Vancouver, Canada, to discuss current understanding in ABMR and ways to prevent it. This Meeting Report summarizes the presentations of the symposium, which addressed key areas that included the interactions between alloantibodies and the complement system in mediating graft injury, technological advancements for assessing antibody-mediated immune responses to HLA antigens, and the potential benefits and challenges of desensitization and kidney paired donation schemes.This meeting report summarizes the presentations of the ROTRF Sunrise Symposium at the XXIII Congress of The Transplantation Society, which addressed key areas relevant to the treatment and prevention of antibody-mediated rejection.

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