Monogenic lupus: Tracing the therapeutic implications from single gene mutations

Area of Science:

• Immunology
• Genetics
• Rheumatology

Background:

• Monogenic lupus is a severe SLE variant with early onset and familial clustering.
• Over thirty genetic variations are linked to single-gene etiology of SLE and lupus-like phenotypes.
• Gene mutations critically disrupt immune pathways, particularly innate immunity.

Purpose of the Study:

• To provide a comprehensive overview of single gene mutations in monogenic lupus.
• To elucidate the pathogenic mechanisms driven by immune dysregulation.
• To discuss recent therapeutic advances for monogenic lupus.

Main Methods:

• Review of scientific literature on monogenic lupus.
• Analysis of genetic variations and their impact on immune pathways.
• Synthesis of current knowledge on pathogenic mechanisms and treatments.

Main Results:

• Single gene mutations cause deficiencies in complement system, impairing nucleic acid and immune complex degradation.
• Dysfunctional innate immunity leads to pro-inflammatory microenvironment and cytokine surge.
• Defects in adaptive immunity result in autoreactive T cells, hyperactivated B cells, and autoimmune antibodies.
• Systemic manifestations include kidney, skin, and central nervous system phenotypes.

Conclusions:

• Monogenic lupus pathogenesis involves complex interplay between genetic defects and immune dysregulation.
• Understanding these mechanisms is crucial for developing targeted therapies.
• Recent therapeutic interventions show promise for managing monogenic lupus.