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Antilactoferrin autoantibodies associated with HIV infection
M C Defer1, J Y Follézou, O Picard
1INSERM U. 313, CHU Pitié-Salpêtrière, Paris, France.
Summary
HIV patients frequently develop antilactoferrin antibodies (anti-LF Abs). While antibody prevalence was similar in asymptomatic and symptomatic individuals, symptomatic patients showed significantly higher autoantibody levels, suggesting a potential link to disease progression.
Area of Science:
- Immunology
- Virology
- Autoimmunity
Background:
- Antilactoferrin antibodies (anti-LF Abs) have been previously associated with specific pathologies.
- The presence and significance of anti-LF Abs in Human Immunodeficiency Virus (HIV) infection are not well-established.
Purpose of the Study:
- To investigate the prevalence and levels of anti-LF Abs in HIV-infected patients.
- To explore potential correlations between anti-LF Abs and clinical status in HIV infection.
Main Methods:
- Enzyme-linked immunosorbent assay (ELISA) was employed to detect anti-LF Abs in sera from 85 HIV-infected patients and 26 healthy controls.
- Patients were categorized into asymptomatic and symptomatic groups.
Main Results:
- Fifty-seven out of 85 (67%) HIV-infected patients tested positive for anti-LF Abs, compared to one of 26 (3.8%) controls.
- The frequency of anti-LF Abs was similar between asymptomatic (64.3%) and symptomatic (68.4%) HIV patients.
- Autoantibody levels were significantly higher in symptomatic HIV patients (mean O.D.: 0.82 +/- 0.15) than in asymptomatic patients (mean O.D.: 0.27 +/- 0.05) (p < 0.01).
- No correlation was observed between anti-LF Abs and polymorphonuclear cell counts or circulating lactoferrin levels.
- None of the patients exhibited clinical signs of vasculitis.
Conclusions:
- HIV infection is associated with a high prevalence of antilactoferrin antibodies.
- Symptomatic HIV patients exhibit significantly higher levels of anti-LF Abs compared to asymptomatic individuals.
- The clinical significance and role of these autoantibodies in HIV pathogenesis require further investigation.