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Antiphospholipid syndrome induced by HIV
A N Leder1, B Flansbaum, G Zandman-Goddard
1Division of Medicine, Long Island Jewish Medical Center, New York, USA.
Lupus
|June 14, 2001
Summary
This case highlights a rare instance of antiphospholipid syndrome (APS) linked to acute HIV infection. High IgG anticardiolipin antibodies were observed, suggesting a direct viral role in developing this condition.
Area of Science:
- Immunology
- Infectious Diseases
- Vascular Medicine
Background:
- Antiphospholipid antibodies (aPL) are known to occur in Human Immunodeficiency Virus (HIV) patients.
- The full presentation of antiphospholipid syndrome (APS) is uncommon in viral infections, potentially due to isotype differences (IgM vs. IgG).
- Thrombosis is a known complication in catastrophic APS (CAPS), but less so in classic APS.
Observation:
- A 24-year-old male presented with necrotic lower extremity lesions and testicular thrombosis requiring orchiectomy.
- The patient exhibited high levels of IgG anticardiolipin (aCL) antibodies.
- These clinical and serological findings were associated with acute HIV infection.
Findings:
- This case demonstrates a direct association between acute HIV infection and the development of classic antiphospholipid syndrome (APS).
- The presence of high IgG aCL antibodies, rather than IgM, may be crucial in manifesting APS during viral infections.
- This contrasts with the typical antibody profiles seen in HIV-associated aPL production.
Implications:
- This case expands the understanding of the relationship between viral infections and autoimmune thrombotic disorders.
- It suggests that acute HIV infection can trigger the classic antiphospholipid syndrome (APS) through specific antibody responses.
- Further research is warranted to explore the mechanisms linking viral triggers to IgG-mediated APS development.