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11:22
Microbiota Analysis Using Two-step PCR and Next-generation 16S rRNA Gene Sequencing
Published on: October 15, 2019
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The microbiome and rheumatic heart disease: current knowledge and future perspectives
Gunavathy Nagarajan1, Ramajayam Govindan2, Maheshkumar Poomarimuthu2
1Department of Immunology, School of Biological Sciences, Madurai Kamaraj University, Madurai, India.
Acta Cardiologica
|May 12, 2023
Summary
Rheumatic heart disease (RHD) stems from an autoimmune reaction to Group A Streptococcus (GAS) infection, damaging heart valves. This review explores the microbiome
Area of Science:
- Cardiovascular Immunology
- Microbiome Research
- Autoimmune Disease Pathogenesis
Background:
- Rheumatic heart disease (RHD) is a significant global health issue, primarily affecting young individuals and causing heart valve damage due to autoimmune responses post-Group A Streptococcus (GAS) infection.
- The pathogenesis involves molecular mimicry, cytokines, antibodies, and T cells, leading to inflammation and loss of immunological tolerance, though precise mechanisms remain unclear.
- Emerging evidence links the human microbiome to various immune-mediated diseases, suggesting its potential role in RHD development.
Purpose of the Study:
- To review the intricate interactions between the human microbiome and the immune system.
- To investigate the potential role of microbiome dysbiosis in the development of autoimmune diseases.
- To specifically explore the causative links between dysbiosis and Rheumatic Heart Disease (RHD).
Main Methods:
- Literature review and synthesis of existing research on RHD pathogenesis.
- Analysis of studies investigating the microbiome's role in immune-mediated diseases.
- Focus on mechanisms like molecular mimicry, epitope spreading, and bystander activation in the context of RHD and dysbiosis.
Main Results:
- The human microbiome influences epithelial barrier integrity, immune system development, and inflammation.
- Microbiome dysbiosis may contribute to autoimmunity through mechanisms such as molecular mimicry and epitope spreading.
- Specific links between dysbiosis and RHD initiation and progression are suggested but require further elucidation.
Conclusions:
- The microbiome plays a critical role in immune system regulation and may be a key factor in the development of autoimmune diseases like RHD.
- Understanding microbiome-host interactions is crucial for unraveling RHD pathogenesis.
- Targeting microbiome dysbiosis could offer novel therapeutic strategies for RHD prevention and treatment.
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