CDG and immune response: From bedside to bench and back

Area of Science:

• Glycosylation
• Immunology
• Genetics

Background:

• Glycosylation is vital for immune function, mediating cell interactions and pathogen recognition.
• Abnormal glycosylation is linked to immune system dysfunction.
• Congenital disorders of glycosylation (CDG) are rare genetic diseases affecting multiple systems, including immunity.

Purpose of the Study:

• To review CDG with immunological involvement.
• To identify specific CDG types associated with immune defects.
• To explore the mechanisms and therapeutic potential for glycoimmunological disorders.

Main Methods:

• Literature review of CDG and immunological involvement.
• Identification of CDG types with infectious, inflammatory, or autoimmune complications.
• Analysis of proposed mechanisms for immune dysregulation in CDG.

Main Results:

• 23 CDG types exhibit immunological involvement, primarily increased susceptibility to infection.
• 7 CDG types present with inflammatory and autoimmune complications.
• Pathophysiological mechanisms involve altered pathogen recognition and intracellular signaling pathways.

Conclusions:

• CDG significantly impacts immune responses, leading to severe health consequences.
• Further research in glycoimmunology is essential to understand CDG pathophysiology.
• Developing targeted therapies for CDG-related immune defects can improve patient quality of life.