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The bm12 Inducible Model of Systemic Lupus Erythematosus (SLE) in C57BL/6 Mice
Published on: November 1, 2015
Defensins in systemic lupus erythematosus
1Institute of Biochemistry, Food Science and Nutrition, Faculty of Agricultural, Food and Environmental Quality, The Hebrew University of Jerusalem, Israel. froy@agri.huji.ac.il
Annals of the New York Academy of Sciences
|September 18, 2009
Summary
Alpha-defensins, released by neutrophils, are elevated in systemic lupus erythematosus (SLE) patients. This suggests alpha-defensins may play a role in SLE pathogenesis and immune system stimulation.
Area of Science:
- Immunology
- Autoimmune Diseases
Background:
- Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by inflammation and tissue damage.
- The exact cause of SLE remains unknown, but innate immunity is implicated in its pathogenesis.
- Defensins are antimicrobial and immunomodulatory substances secreted by the innate immune system.
Purpose of the Study:
- To investigate the potential role of alpha-defensins in the pathogenesis of SLE.
- To explore the relationship between alpha-defensin levels and SLE activity.
Main Methods:
- Analysis of alpha-defensin mRNA and protein levels in SLE patients.
- Measurement of anti-defensin antibodies in SLE patient sera.
- Observation of changes in antibody levels after corticosteroid therapy.
Main Results:
- Alpha-defensins were found to be upregulated at both mRNA and protein levels in SLE patients.
- Elevated levels of anti-defensin antibodies were detected in SLE patient sera.
- Anti-defensin antibody levels decreased following corticosteroid treatment.
Conclusions:
- These findings suggest that alpha-defensins are involved in the pathogenesis of SLE.
- Neutrophil activation and subsequent alpha-defensin secretion may contribute to SLE.
- Alpha-defensin's immunomodulatory properties might activate the adaptive immune system, exacerbating SLE manifestations.
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