Regulatory T cells
FoxP3+ immune self-tolerance
Also searched as FoxP3+ immune self-tolerance.
You want them working: tolerance is not the absence of an immune system, it is a functioning one that knows what to leave alone.
In depth
FoxP3+ regulatory T cells — the immune system's brake on itself. They are what stops an immune response from turning on your own tissue, and in type 1 diabetes their number or function is reduced before the disease appears.
What drives it
The Long Tenant increases it.
Chronic cestode infection expands FoxP3+ regulatory T cells that dampen host effector responses. doi 10.3389/fimmu.2020.00798
Roundworm burden increases it.
Chronic nematode infection expands regulatory T cells that suppress bystander immune responses. doi 10.1038/s41467-017-01886-6
Parasite burden increases it.
Regulatory T cell expansion is how chronic parasite burden establishes host tolerance. doi 10.1038/s41467-017-01886-6
Reduces scarring increases it.
TGF-beta together with IL-2 induces FoxP3 and drives peripheral regulatory T-cell differentiation. PMID 26886923
What it drives
It reduces Islet inflammation.
Verbatim: 'The maturation of regulatory T cells (Tregs) expressing Foxp3 transcription factor is crucial for immune homeostasis and induction of tolerance... Numerous studies have revealed that reduced frequency OR function of FoxP3+ Tregs in NOD mice is a major susceptibility factor for T1D' (PMC7105744). The link runs inversely: Treg function up means insulitis down. murine susceptibility evidence; no supplement on this blend has been shown to raise human Treg function, so this edge explains the disease, it does not license a claim. PMC7105744
It reduces Type 1 diabetes.
Tolerance is the counterweight to the whole disease process. Gut-primed Tregs 'contribute to systemic immune regulation through migration and compartmental redistribution', and microbial tryptophan metabolites activating AHR 'supports pTreg differentiation and interleukin-22-mediated epithelial barrier maintenance' (doi 10.3390/ijms27114789). mechanistic and largely murine; the human Treg literature in type 1 is observational. doi 10.3390/ijms27114789
Blends that modulate it
Each blend page names this pathway and carries the study behind its claim.
See it on the map
Open the causal map to follow this pathway upstream and downstream, arrow by arrow, each with its study.