Somatic mutations in autoinflammatory and autoimmune disease

Area of Science:

• Immunology
• Genetics
• Pathology

Background:

• Somatic mutations, or acquired mutations, are common age-related changes in body cells.
• While historically linked to cancer, somatic mutations are increasingly implicated in benign and rheumatic diseases.
• These mutations play a role in both monogenic and complex immunological disorders.

Purpose of the Study:

• To review the contribution of somatic mutations to immunological diseases.
• To detail unique aspects of somatic mutations in causing and influencing disease.
• To explore the implications of somatic mutations in genetic testing and counseling.

Main Methods:

• Literature review of somatic mutations in immunological diseases.
• Analysis of pathogenic mechanisms and clinical relevance.
• Discussion of clonal dynamics and variant allele fraction.

Main Results:

• Somatic mutations can cause early- or late-onset monogenic rheumatic diseases.
• They contribute to the pathogenesis and progression of complex inflammatory and immune-mediated diseases.
• Clonal dynamics and variant allele fraction impact pathogenicity and phenotypic consequences.

Conclusions:

• Somatic mutations are significant contributors to a spectrum of immunological diseases.
• Recognition of somatic mutations is expanding due to improved diagnostics.
• An increasing number of gene mutations causing inflammatory conditions, especially late-onset diseases, are anticipated.