New insights regarding chronic antibody-mediated rejection and its progression to transplant glomerulopathy

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Purpose of this review To discuss new insights regarding chronic antibody-mediated rejection (CAMR) and its progression to transplant glomerulopathy. We will describe the progression to transplant glomerulopathy from a histologic perspective and provide updates on what is known about its pathophysiology, prognosis, and potential therapy. Recent findings Transplant glomerulopathy is a major contributor to long-term renal allograft loss and is most often associated with CAMR. On the basis of protocol biopsies, we have found that 3.5% of conventional transplants and 27.5% of positive crossmatch kidney transplants have transplant glomerulopathy at 1 year. The pathophysiology of the process is largely unknown, but complement activation was previously thought to be essential. However, CAMR appears to develop despite terminal complement blockade and many C4d negative cases of CAMR have been identified. Thus, complement independent mechanisms, such as direct endothelial cell activation and the infiltration of natural killer cells and monocytes, are likely key to the development of transplant glomerulopathy. Summary Transplant glomerulopathy is often the result of CAMR and leads to allograft loss. It is characterized by distinctive histologic changes, and its pathophysiology is a multifaceted process involving both innate and adaptive immunity. Despite advances in the understanding of this condition, no effective therapy exists.

Original languageEnglish (US)
Pages (from-to)611-618
Number of pages8
JournalCurrent Opinion in Nephrology and Hypertension
Volume23
Issue number6
DOIs
StatePublished - 2014

    Fingerprint

Keywords

  • Antibody-mediated rejection
  • Donor-specific antibody
  • Positive crossmatch transplantation
  • Transplant glomerulopathy

ASJC Scopus subject areas

  • Nephrology
  • Internal Medicine

Cite this