Updates on C3 Glomerulopathy in Kidney Transplantation: Pathogenesis and Treatment Options

Giulia Bartoli1, Andrea Dello Strologo1, Giuseppe Grandaliano1,2

  • 1Department of Translational Medicine and Surgery, Università Cattolica dl Sacro Cuore, 00168 Rome, Italy.

Insights

C3 glomerulopathy, a rare kidney disease, often recurs after kidney transplants, impacting graft survival. New anti-complement therapies show promise for managing this condition in transplant recipients.

Area of Science:

  • Nephrology
  • Immunology
  • Transplantation

Background:

  • C3 glomerulopathy involves abnormal complement alternative pathway activation, leading to C3 deposition in kidneys.
  • Disease recurrence affects over 50% of kidney transplant recipients, significantly reducing graft survival.
  • Recurrence is a major cause of kidney graft loss, second only to organ rejection.

Purpose of the Study:

  • To review the impact of C3 glomerulopathy on kidney grafts.
  • To present current and emerging treatment options for C3 glomerulopathy in transplant patients.

Main Methods:

  • Literature review summarizing existing data on C3 glomerulopathy recurrence and treatment.
  • Analysis of ongoing clinical studies on novel therapeutic agents.

Main Results:

  • Identified risk factors for recurrence include delayed graft function, infection, and monoclonal gammopathy.
  • Standard treatments like corticosteroids and mycophenolate mofetil have limitations.
  • Emerging anti-complement drugs (eculizumab, Ravalizumab, avacopan) show encouraging preliminary results.

Conclusions:

  • C3 glomerulopathy poses a significant threat to kidney graft survival post-transplantation.
  • Novel anti-complement therapies are needed and demonstrate promising outcomes for managing C3 glomerulopathy recurrence.