Epigenetics and methylation in the rheumatic diseases

Area of Science:

• Rheumatology
• Epigenetics
• Genomics

Background:

• Rheumatic diseases have complex etiopathologies with genetic and environmental factors.
• Epigenetic studies, including DNA methylation, are crucial for understanding disease pathogenesis.
• Recent literature reviews focus on DNA methylation studies in rheumatology.

Purpose of the Study:

• To review recent DNA methylation studies in rheumatic diseases.
• To discuss epigenome-wide and candidate gene approaches.
• To highlight methodological considerations in epigenetic research.

Main Methods:

• A comprehensive PubMed search was conducted using keywords related to methylation, epigenetics, and various rheumatic conditions.
• The search included articles published up to April 2013.
• Reference lists of identified articles were also reviewed.

Main Results:

• Several genome-wide methylation studies have been reported, primarily in autoimmune rheumatic diseases.
• These studies identified methylation signatures associated with disease, subgroup clustering, and epigenetic links.
• Many findings are preliminary due to methodological issues and small sample sizes.

Conclusions:

• Recent epigenetic research has significantly advanced the understanding of rheumatic diseases.
• New technologies and epigenome-wide association studies promise novel insights into disease etiology.
• Epigenetic findings may impact the diagnosis, classification, and treatment of rheumatic conditions.