DAMP-ing IBD: Extinguish the Fire and Prevent Smoldering.

Area of Science:

• Gastroenterology and Immunology
• Inflammation Research
• Environmental Health

Background:

• Current therapies for inflammatory bowel diseases (IBD) targeting cytokines or immune cell trafficking achieve only ~40% efficacy.
• IBD is a multifactorial condition influenced by genetics, immune responses, and environmental factors like diet and pollution.
• Existing treatments often fail to resolve the underlying inflammatory microenvironment, leading to chronic disease.

Purpose of the Study:

• To propose a comprehensive therapeutic strategy for IBD that addresses its multifactorial nature.
• To highlight the importance of environmental factors in IBD pathogenesis and treatment.
• To advocate for a multi-scalar approach targeting innate immunity, adaptive immunity, and the microenvironment.

Main Methods:

• Review of current IBD therapeutic strategies and their limitations.
• Analysis of the interplay between genetic background, immune cells, and environmental factors in IBD.
• Hypothesis formulation for a multi-target intervention strategy.

Main Results:

• Single-target therapies are insufficient due to the complexity and variability of IBD.
• Environmental factors, including diet and pollution, significantly contribute to the inflammatory milieu.
• Activation of pathways like the NLRP3 inflammasome is amplified by danger- and microbe-associated molecular patterns (D/MAMPs).

Conclusions:

• Successful IBD interventions require simultaneous targeting of innate immunity, adaptive immunity, microbiota, and environmental factors.
• A holistic approach addressing inflammation across nano-, meso-, and microscales is necessary.
• Adapting the 'DAMPing' (micro)environment is crucial for comprehensive IBD treatment.