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[Different autoimmunity in Wegener's granulomatosis and microscopic polyangiitis]
O Hergesell1, R Kriszt, H P Seelig
1Medizinische Klinik, Universität Heidelberg.
Immunitat Und Infektion
|February 1, 1994
Summary
Microscopic polyangiitis (MP) patients show increased autoimmunity, indicated by elevated thyroid microsomal and cardiolipin antibodies. These autoantibodies were not correlated with each other in the study.
Area of Science:
- Rheumatology
- Immunology
- Internal Medicine
Background:
- Wegener's granulomatosis (WG) and microscopic polyangiitis (MP) are small vessel vasculitides.
- Autoantibodies against neutrophil cytoplasmic antigens (ANCA) are used to differentiate these conditions.
- Further immunological markers may aid in distinguishing and understanding these vasculitides.
Purpose of the Study:
- To investigate autoimmunity in patients with microscopic polyangiitis (MP).
- To evaluate the presence of thyroid microsomal and cardiolipin antibodies in MP patients.
- To determine correlations between different autoantibodies in small vessel vasculitis.
Main Methods:
- Measurement of autoantibodies, including thyroid microsomal and cardiolipin antibodies.
- Analysis of ANCA target antigens for serological discrimination.
- Statistical analysis to assess correlations between antibody levels.
Main Results:
- Patients with microscopic polyangiitis (MP) demonstrated increased levels of thyroid microsomal antibodies.
- Elevated cardiolipin antibodies were also observed in MP patients.
- No significant correlation was found between thyroid microsomal, myeloperoxidase (MPO)-ANCA, or cardiolipin antibodies.
Conclusions:
- Increased autoimmunity, specifically thyroid microsomal and cardiolipin antibodies, is present in microscopic polyangiitis (MP).
- These autoantibodies may serve as additional serological markers in MP.
- Further research is needed to clarify the role and interrelationships of these autoantibodies in small vessel vasculitis.