Innate and adaptive immunity in celiac disease

Area of Science:

• Immunology
• Gastroenterology
• Celiac Disease Research

Background:

• Recent studies suggest adaptive immunity plays a key role in celiac disease.
• Adaptive immunity may explain both rapid and chronic gluten-induced symptoms.

Purpose of the Study:

• To review recent findings on the role of adaptive immunity in celiac disease.
• To explore the mechanisms behind gluten's effects on the immune system in celiac patients.

Main Methods:

• Review of recent clinical and immunological studies.
• Analysis of T-cell and B-cell responses to gluten.
• Investigation of cytokine release patterns.

Main Results:

• Gluten re-exposure triggers systemic cytokine release and T-cell activation within 2 hours.
• Long-lasting memory CD4+ T cells are responsible for acute digestive symptoms.
• Gluten-specific memory B cells and plasma cells, along with transglutaminase 2, act as antigen-presenting cells.
• Innate immune stimuli may initiate disease, but adaptive immunity mediates mucosal injury.
• Gut and blood gluten-specific adaptive immunity are linked, explaining extraintestinal manifestations.

Conclusions:

• Adaptive immunity is central to celiac disease pathogenesis.
• Cytokines show promise as biomarkers for gluten immunity, diagnosis, and therapeutic development.