Autoimmunity in Primary Immunodeficiencies (PID)

Area of Science:

• Immunology
• Genetics
• Clinical Medicine

Background:

• Primary immunodeficiency (PID) encompasses a growing number of immune system disorders.
• Advances in genetic detection are expanding the characterization of PID.
• PID are increasingly recognized for non-infectious manifestations, particularly autoimmunity.

Purpose of the Study:

• To review the relationship between primary immunodeficiency and autoimmunity.
• To highlight specific PIDs frequently associated with autoimmune conditions.
• To discuss diagnostic and management strategies for these intertwined disorders.

Main Methods:

• Literature review focusing on PIDs and associated autoimmune phenomena.
• Analysis of genetic underpinnings linking immune defects to autoimmunity.
• Synthesis of current diagnostic and management approaches.

Main Results:

• Immune system defects in PID can predispose individuals to both infections and autoimmunity.
• Autoimmune complications like cytopenia, enteropathy, endocrinopathies, and arthritis are reported in PID.
• Non-infectious autoimmune manifestations can be the primary presenting sign of PID.

Conclusions:

• The spectrum of PID is broadening beyond infections to include significant autoimmune components.
• Understanding the genetic basis is key to recognizing the dual role of immune defects.
• Targeted diagnosis and management are crucial for PIDs presenting with autoimmunity.