Antiviral immunity in chronic glomerulonephritis

Area of Science:

• Immunology
• Nephrology
• Virology

Background:

• Chronic glomerulonephritis (GN) is a significant kidney disease with complex etiologies.
• Systemic Lupus Erythematosus (SLE) patients often exhibit altered immune responses, including to viral infections.

Purpose of the Study:

• To investigate the prevalence and levels of antiviral antibodies in patients with chronic glomerulonephritis (GN).
• To compare antiviral antibody profiles in GN patients with those in Systemic Lupus Erythematosus (SLE) patients and healthy controls.

Main Methods:

• Sera from 65 chronic GN patients, 58 SLE patients, and 59 healthy controls were analyzed.
• Antibody detection and geometric mean antibody titers against influenza A2, influenza B, parainfluenza I-II-III, and measles viruses were quantified.

Main Results:

• Antiviral antibodies against influenza A2, B, and parainfluenza I-II-III viruses were significantly more frequent in GN patients compared to healthy controls.
• Elevated geometric mean antibody titers to measles, influenza A2, B, and parainfluenza I-II-III viruses were observed in GN patients.
• The frequency and levels of antiviral antibodies in GN patients were comparable to those found in SLE patients.

Conclusions:

• Increased antiviral activity in the sera of chronic GN patients suggests a potential role for persistent latent viral infections in the disease's pathogenesis.
• The findings in GN patients mirror those in SLE patients, highlighting potential shared mechanisms involving viral interactions.