Beyond Donor-Specific Antibodies: Molecular Characterization of Antibody-Mediated Rejection Using Tissue-Based Transcriptomics in Heart Transplantation.
BACKGROUND Antibody-mediated rejection (AMR) contributes to graft dysfunction after heart transplantation, yet histopathology and circulating donor-specific antibodies (DSA) may incompletely capture intragraft biology. We characterized molecular ABMR by HLA-DSA status and, within DSA-negative cases, non-HLA antibody st...