Link to Pubmed [PMID] – 32641395
Link to DOI – 10.1681/ASN.2020030306
J Am Soc Nephrol. 2020 Sep;31(9):2168-2183
Donor-specific anti-HLA antibodies (HLA-DSAs) are often not detectable in serum of kidney allograft recipients whose biopsies display histology of antibody-mediated rejection (ABMR), which creates uncertainty in clinical decision making. The authors show that ABMR histology associates with a distinct transcriptional profile that is independent of the presence of HLA-DSAs, although the presence of HLA-DSAs is also an independent risk factor for graft failure after ABMR histology. However, molecular assessment of allograft biopsy specimens does not elucidate the underlying cause of ABMR histology, and these findings indicate that therapeutic decisions should not be based solely on the histologic and molecular presentation. Future studies should work toward identifying and targeting the underlying stimulus of ABMR histology.