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[C3 glomerulopathy]

Sophie Chauvet1, Aude Servais2, Véronique Frémeaux-Bacchi3

  • 1Service de néphrologie, hôpital Georges-Pompidou, 20, rue Leblanc, 75015 Paris, France.

Nephrologie & Therapeutique
|February 11, 2014
PubMed

Insights

C3 glomerulopathy involves complement alternative pathway (AP) abnormalities, leading to kidney damage and poor prognosis. Eculizumab may offer a new treatment option for this rare disease.

Area of Science:

  • Nephrology
  • Immunology
  • Complement System Biology

Context:

  • C3 glomerulopathy (C3G) is a rare kidney disease characterized by abnormal complement alternative pathway (AP) activation.
  • It presents with proteinuria, hematuria, hypertension, and renal failure, often leading to end-stage renal disease (ESRD).
  • Recurrence after kidney transplantation is common, highlighting the systemic nature of the disease.

Purpose:

  • To review the pathogenesis, clinical presentation, and current management of C3 glomerulopathy.
  • To explore the role of complement alternative pathway (AP) dysregulation in C3G.
  • To discuss potential therapeutic strategies, including novel complement inhibitors.

Summary:

  • C3 glomerulopathy is defined by dominant C3 deposition in glomeruli, resulting from complement AP dysregulation.
  • Patients often exhibit low serum C3 levels and have a poor renal prognosis, with high rates of progression to ESRD.
  • Current treatments include ACE inhibitors and ARBs, but novel therapies targeting complement activation are under investigation.

Impact:

  • Understanding C3G pathogenesis aids in developing targeted therapies.
  • Identifying effective treatments can improve patient outcomes and reduce the burden of kidney disease.
  • Research into complement-targeted therapies like eculizumab offers hope for patients with limited treatment options.

Keywords:
Activation de la voie alterneComplement alternative pathwayComplémentGlomerulopathyGlomérulopathie à C3

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