Viral-Associated GN: Hepatitis C and HIV

Area of Science:

• Nephrology
• Virology
• Immunology

Background:

• Viruses induce diverse glomerular disorders based on viremia duration (acute, subacute, chronic).
• Hepatitis C virus (HCV) and human immunodeficiency virus (HIV) infections are linked to distinct glomerular injury patterns.
• Coinfection with HCV and HIV presents diagnostic challenges in glomerular disease.

Purpose of the Study:

• To detail pathogenic mechanisms of viral-induced glomerular injury.
• To differentiate viral-associated glomerulonephritis (GN) from postinfectious GN.
• To highlight the role of active viral replication in sustaining renal injury.

Main Methods:

• Review of pathogenic mechanisms in HCV and HIV-associated glomerular injury.
• Analysis of immune system responses to varying viremia durations.
• Categorization of viral GN under infection-associated GN.

Main Results:

• Direct viral infection and immune complex deposition are key mechanisms.
• Glomerular injury depends on active viral replication, not latent viremia.
• HCV and HIV are classified as causes of infection-associated GN.

Conclusions:

• Early treatment with direct-acting antivirals (HCV) and antiretroviral therapy (HIV) can induce remission or regression of glomerular lesions.
• Understanding viral pathophysiology is crucial for managing dual-infected patients.
• Viral-associated glomerular diseases require active viral replication to persist.