Systemic lupus erythematosus following HPV immunization or infection?

Area of Science:

• Immunology
• Rheumatology
• Vaccinology

Background:

• The association between infections and autoimmune diseases like lupus is well-documented.
• Reports suggest a potential link between immunizations and the onset or exacerbation of lupus syndromes.

Observation:

• This report details three distinct cases of patients developing new-onset systemic lupus erythematosus (SLE) or experiencing an SLE flare after receiving the human papillomavirus (HPV) vaccine.
• Case 1: A 17-year-old female developed lupus nephritis post-HPV vaccination. Case 2: A 45-year-old female with a history of rheumatoid arthritis experienced an SLE flare with neurological involvement after HPV immunization. Case 3: A 58-year-old female with established SLE experienced a fatal exacerbation following HPV vaccination.

Findings:

• The observed cases suggest a potential for adjuvant-induced autoimmunity following HPV immunization, leading to the development or worsening of SLE.
• Laboratory findings in these patients included positive anti-nuclear antibodies (ANA), anti-double-stranded DNA (anti-dsDNA) antibodies, hypocomplementemia, and varying degrees of organ involvement.
• One patient experienced a fatal outcome, highlighting the potential severity of such autoimmune responses.

Implications:

• These findings warrant further investigation into the immunomodulatory effects of HPV vaccines, particularly in individuals predisposed to or diagnosed with autoimmune conditions.
• While these cases raise concerns, the established benefits of HPV vaccination in preventing HPV-related cancers should be weighed against potential autoimmune risks.
• Further research is crucial to understand the mechanisms underlying potential vaccine-induced autoimmunity and to guide vaccination strategies in at-risk populations.