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Activated immune system in patients with Huntington's disease
F Leblhuber1, J Walli, K Jellinger
1Abteilung für Gerontologie, Landesnervenklinik Wagner-Jauregg, Linz, Austria.
Clinical Chemistry and Laboratory Medicine
|December 16, 1998
Summary
Huntington's disease patients show immune system activation, with elevated immunoglobulin A (IgA), soluble tumor necrosis factor receptor (sTNF-R), and neopterin. Lower serum tryptophan levels correlate with cognitive decline and disease severity in this neurodegenerative disorder.
Area of Science:
- Neuroimmunology
- Immunology
- Neurology
Background:
- Huntington's disease (HD) is a neurodegenerative disorder with complex pathophysiology.
- The role of immune system dysregulation in HD pathogenesis is increasingly recognized.
Purpose of the Study:
- To investigate immune system compartment abnormalities in Huntington's disease patients.
- To identify correlations between immune markers, cognitive function, and disease progression.
Main Methods:
- Serum samples from 12 HD patients and 11 controls were analyzed.
- Measurements included neopterin, sTNF-R, sIL-2R, kynurenine, tryptophan, immunoglobulins (IgA, IgM, IgG), C3, circulating immune complexes, and cardiolipin antibodies.
- Cognitive function was assessed using the mini-mental state examination.
Main Results:
- HD patients exhibited significantly higher serum levels of IgA, sTNF-R, sIL-2R, neopterin, and C3 compared to controls.
- Serum tryptophan levels were significantly decreased in HD patients.
- Elevated levels of circulating immune complexes, IgM, neopterin, and lower tryptophan were associated with cognitive impairment.
- Higher IgM, immune complexes, neopterin, and lower tryptophan were observed in non-survivors.
Conclusions:
- The findings indicate activation of multiple immune system compartments in Huntington's disease.
- Systemic immunological alterations appear to play a significant role in the disease course and progression.
- Immune markers may serve as potential indicators of disease severity and prognosis in HD.