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Updated: Jun 18, 2026

In Vivo Augmentation of Gut-Homing Regulatory T Cell Induction
Published on: January 22, 2020
Immunomodulation of gut-associated lymphoid tissue: current perspectives
Diomira Luongo1, Rossana D'Arienzo, Paolo Bergamo
1Institute of Food Sciences, CNR, Avellino, Italy.
Researchers explored mucosal adjuvants to improve gut immune responses and tolerance. New strategies include modified cholera toxin, probiotics, and regulatory T cell expansion for conditions like celiac disease.
Area of Science:
- Immunology
- Gastroenterology
- Microbiology
Background:
- The gut-associated lymphoid tissue (GALT) balances protection against pathogens and immune tolerance.
- Effective immune responses at mucosal surfaces require specific adjuvants.
- Developing safe and effective mucosal adjuvants is crucial for treating immune-mediated diseases.
Purpose of the Study:
- To review current and novel mucosal adjuvants for modulating gut immunity.
- To explore strategies for inducing immune tolerance in the gut.
- To discuss therapeutic approaches for immune-mediated diseases like celiac disease.
Main Methods:
- Review of existing literature on mucosal adjuvants and immune tolerance induction.
- Analysis of novel adjuvant candidates, including modified toxins, nanoparticles, and probiotics.
- Examination of strategies targeting regulatory T cells and antigen entry.
Main Results:
- Cholera toxin variants depleted of toxicity have been developed as mucosal adjuvants.
- Lipid colloidal particles, bacterial DNA, and probiotics show potential as adjuvants.
- The B subunit of cholera toxin is used for tolerance induction; new strategies are emerging.
Conclusions:
- Mucosal adjuvants are essential for both protective immunity and immune tolerance in the gut.
- Novel strategies involving probiotics and regulatory T cell modulation offer promising avenues for therapeutic interventions.
- Understanding antigen-specific immune responses is key to developing targeted therapies for diseases such as celiac disease.
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