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Published on: May 21, 2018
Cardio-Rheumatic Diseases: Inflammasomes Behaving Badly
Farah Issa1, Marah Abdulla1, Faizah D Retnowati1
1Department of Biomedical Sciences, College of Health Sciences, QU Health Sector, Qatar University, Doha 2713, Qatar.
Insights
Inflammasomes, key immune activators, contribute to cardiovascular diseases (CVDs) in rheumatic conditions. Understanding inflammasome pathways offers potential new therapies for these inflammatory and cardiovascular complications.
Area of Science:
- Cardio-rheumatology
- Immunology
- Cardiovascular Medicine
Background:
- Cardio-rheumatology integrates rheumatology and cardiovascular medicine, highlighting increased cardiovascular disease (CVD) risk in autoimmune/inflammatory rheumatic conditions.
- Inflammasomes are immune system multiprotein complexes crucial for innate immunity, involving NF-κB, caspase 1, and pro-inflammatory cytokines like IL-18 and IL-1β.
- Dysregulated inflammasome activation is linked to various inflammatory diseases.
Purpose of the Study:
- To review inflammasome activation mechanisms.
- To explore the role of inflammasomes in the pathogenesis of cardiovascular diseases (CVDs).
- To illustrate inflammasome involvement in specific rheumatic diseases and their cardiovascular implications.
Main Methods:
- Literature review focusing on inflammasome activation pathways.
- Analysis of studies investigating inflammasomes in cardiovascular disease.
- Examination of inflammasome roles in rheumatic heart disease, Kawasaki disease, familial Mediterranean fever, ankylosing spondylitis, and rheumatoid arthritis.
Main Results:
- Inflammasomes are implicated in the inflammatory cascades driving CVD pathogenesis.
- Specific rheumatic conditions demonstrate the link between inflammasome activation and cardiovascular complications.
- Targeting inflammasomes presents a potential therapeutic strategy for managing inflammatory CVDs.
Conclusions:
- Inflammasome dysregulation is a significant factor in the development of cardiovascular diseases, particularly in the context of rheumatic conditions.
- Understanding inflammasome pathways provides insights into the pathobiology of various inflammatory and cardiovascular diseases.
- Targeting inflammasomes may offer novel therapeutic avenues for cardio-rheumatologic disorders.
Abstract:
Cardio-rheumatology is an evolving and interdisciplinary field lying at the intersection of rheumatology and cardiovascular medicine that recognizes that individuals with autoimmune and inflammatory rheumatic complications have a much higher likelihood of developing cardiovascular diseases (CVDs). Inflammasomes are multiprotein complexes stimulated by the immune system after the detection of pathogens or cellular injury. Inflammasomes undergo a two-stage activation process initiated by nuclear factor (NF)-κB, subsequently playing a crucial role in innate immunity through activation of caspase 1 and the consequent release of proinflammatory cytokines such as IL-18 and IL-1β. However, a loss of control of inflammasome activation can cause inflammatory diseases in humans. Recent studies have focused on the role of inflammasomes in inflammatory cascades implicated in the pathogenesis of several diseases. Here, we review inflammasome activation, its mechanism of action, and its role in CVD. In particular, we describe the role of inflammasomes in rheumatic heart disease, Kawasaki disease, familial Mediterranean fever, ankylosing spondylitis, and rheumatoid arthritis as exemplars to illustrate pathobiological mechanisms and the potential for targeting inflammasomes for therapeutic benefit.
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