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Published on: June 20, 2014
Cardiac phenotype in mouse models of systemic autoimmunity
Chandan Sanghera1, Lok Man Wong1, Mona Panahi1
1National Heart and Lung Institute, Imperial College London, London, W12 0NN, UK.
Insights
Systemic autoimmune diseases heighten heart risks through inflammation and direct damage. This review aids researchers in selecting appropriate mouse models to study cardiac complications in autoimmunity.
Area of Science:
- Cardiovascular Medicine
- Immunology
- Rheumatology
Background:
- Systemic autoimmune diseases (SADs) significantly increase cardiovascular complication risks.
- Cardiac issues in SADs stem from inflammation-driven atherosclerosis and direct autoimmune attack.
- Existing knowledge on diagnosing and treating cardiac involvement in SADs requires enhancement.
Purpose of the Study:
- To systematically review cardiac phenotypes in common mouse models of systemic lupus erythematosus, rheumatoid arthritis, and systemic sclerosis.
- To provide a decision framework for researchers selecting mouse models for studying heart involvement in systemic autoimmunity.
- To highlight lesser-known but relevant models for mechanistic and therapeutic investigations.
Main Methods:
- Systematic collation of data on cardiac phenotypes.
- Analysis of inducible, spontaneous, and engineered mouse models.
- Focus on models of systemic lupus erythematosus, rheumatoid arthritis, and systemic sclerosis.
Main Results:
- Detailed characterization of cardiac involvement across various SAD mouse models.
- Identification of specific cardiac manifestations associated with different autoimmune diseases in models.
- Evaluation of the suitability of different models for specific research questions.
Conclusions:
- Mouse models are crucial for understanding cardiac complications in systemic autoimmune diseases.
- A structured approach to model selection is necessary for effective research.
- Further research using appropriate models can improve diagnosis and treatment strategies for cardiac issues in autoimmune patients.
Abstract:
Patients suffering from systemic autoimmune diseases are at significant risk of cardiovascular complications. This can be due to systemically increased levels of inflammation leading to accelerated atherosclerosis, or due to direct damage to the tissues and cells of the heart. Cardiac complications include an increased risk of myocardial infarction, myocarditis and dilated cardiomyopathy, valve disease, endothelial dysfunction, excessive fibrosis, and bona fide autoimmune-mediated tissue damage by autoantibodies or auto-reactive cells. There is, however, still a considerable need to better understand how to diagnose and treat cardiac complications in autoimmune patients. A range of inducible and spontaneous mouse models of systemic autoimmune diseases is available for mechanistic and therapeutic studies. For this Review, we systematically collated information on the cardiac phenotype in the most common inducible, spontaneous and engineered mouse models of systemic lupus erythematosus, rheumatoid arthritis and systemic sclerosis. We also highlight selected lesser-known models of interest to provide researchers with a decision framework to choose the most suitable model for their study of heart involvement in systemic autoimmunity.
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