Antigen-Antibody Complex
Complement System Proteins
Glomerulonephritis
Glomerulonephritis, Membranoproliferative
Hematuria

C3 Glomerulopathy

C3 glomerulopathy (C3G) is a rare glomerular disease stemming from dysregulation of the complement system’s alternative pathway, resulting in excessive C3 protein deposits in the kidney s glomeruli. Characterized by dominant C3 deposits without or with minimal immunoglobulin deposition, C3G primarily includes 2 subtypes: C3 glomerulonephritis and dense deposit disease. These subtypes are differentiated based on electron microscopy findings, with C3 glomerulonephritis showing scattered electron-dense deposits and dense deposit disease exhibiting a linear pattern within the glomerular basement membrane. C3G manifests with nephritic and nephrotic features, such as proteinuria, hematuria, and kidney function decline. This disease is often challenging to diagnose, as it shares overlapping features with other glomerulopathies, such as post-infectious or immune complex-mediated glomerulonephritis. Understanding the underlying mechanisms, particularly the genetic mutations and autoantibodies affecting complement regulation, is crucial to accurate diagnosis and targeted treatment. In this course, healthcare professionals understand C3G from pathophysiology to treatment, focusing on advancements in complement-targeting therapies. This knowledge enables clinicians to differentiate C3G from similar kidney disorders and apply evidence-based strategies, including anti-proteinuric and immunosuppressive therapies. Collaborating within an interprofessional team, including nephrologists, pathologists, and genetic counselors, fosters more accurate diagnoses and optimized treatment planning, improving patient outcomes. Effective interprofessional collaboration ensures that the diagnostic process incorporates complementary expertise and supports holistic patient care, reducing the likelihood of misdiagnosis and facilitating access to novel treatments in this evolving field.

Credit & MOC Details

Credit information is provided by the course provider. We recommend confirming credit eligibility with the provider or your licensing board before starting the activity.