tissue
Gut Immune Ecosystem
Tolerance-dominant barrier system shaped by microbiome metabolites, epithelial alarmins, and antigen flux
barriermicrobiometoleranceTH17
Review layer
Last reviewed 2026-05-17
conceptualeducational
Systems teaching draft. Content is structured for education and graph expansion, with formal source tagging ready for the next review pass.
State signature
Systems profile
Inflammation52
Tolerance84
Metabolism82
Tissue88
Neuroimmune38
Chronicity48
Tissue ecosystem
Spatial immune niche
niche
Gut
Barrier
mucus layertight junctionssecretory IgA
Cells
macrophagesT cell subsetsmast cellsdendritic cells
Cytokines
IL-10TGF-betaIL-17IL-22
Neuroimmune
enteric nervous systemvagal anti-inflammatory reflexCRH-mast cell barrier effects
Graph neighborhood
Direct relationships
Gut macrophages maintain tolerance and barrier repair
SCFA-rich tolerance ecology
Resident immune niches adapt barrier responses to local microbiome, antigen, and tissue metabolism
Immune niche
Tissue Ecology
The gut immune system calibrates between food tolerance, microbial containment, epithelial repair, and TH17 barrier defense.
Dominant immune cells
Barrier systems
Microbiome interactions
SCFA induction of Tregssegmented filamentous bacteria and TH17 tonebile acid immune modulation
Neuroimmune interactions
enteric nervous systemvagal anti-inflammatory reflexCRH-mast cell barrier effects
Cytokine environment
Metabolic conditions
butyrate availabilityhypoxic mucosal surfaceamino acid sensingbile acid signaling