Polymyositis and dermatomyositis biomarkers.
Shuyue Xu1, Xiaowei Hu2, Jing Wang3
1Wuxi No. 2 People's Hospital Affiliated to Nanjing Medical University, Wuxi, China.
Summary
This review highlights classic and novel biomarkers for polymyositis (PM) and dermatomyositis (DM). Understanding these biomarkers, like anti-aminoacyl tRNA synthetases (ARS) antibodies, aids in diagnosing and managing these inflammatory muscle diseases.
Area of Science:
- Immunology
- Rheumatology
- Biomarker Discovery
Background:
- Polymyositis (PM) and dermatomyositis (DM) are idiopathic inflammatory myopathies causing progressive muscle weakness.
- These conditions can affect multiple organ systems, necessitating accurate diagnostic tools.
- Understanding biomarkers is crucial for diagnosis, treatment, and prognosis of PM/DM.
Purpose of the Study:
- To review and summarize established and emerging biomarkers for PM and DM.
- To discuss the diagnostic and prognostic potential of these biomarkers.
- To highlight the clinical utility of current biomarkers and future research directions.
Main Methods:
- Literature review of classic and novel biomarkers for PM/DM.
- Analysis of the diagnostic and clinical significance of identified biomarkers.
- Discussion of research prospects for potential new biomarkers.
Main Results:
- Classic biomarkers, including anti-aminoacyl tRNA synthetases (ARS) antibodies, anti-Mi-2, anti-MDA5, anti-TIF1-γ, and anti-NXP2 antibodies, are widely used in clinical diagnosis.
- Novel potential biomarkers such as anti-HSC70 antibody, YKL-40, interferons, and various interleukins and microRNAs were identified.
- Classic biomarkers are currently mainstream due to their early discovery and extensive application.
Conclusions:
- Classic PM/DM biomarkers are essential for current clinical practice.
- Novel biomarkers show significant promise for future research, classification, and expanded applications.
- Further investigation into novel biomarkers will enhance diagnostic accuracy and therapeutic strategies for PM/DM.
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