Overview
Interleukin-10 is the primary anti-inflammatory cytokine, produced by Treg cells, macrophages, dendritic cells, and B cells. It suppresses pro-inflammatory cytokine production (IL-6, TNF-alpha, IL-1β), inhibits antigen presentation, and maintains immune tolerance. IL-10 deficiency or dysfunction is the immunological substrate of chronic inflammatory disease — IL-10 knockout mice develop spontaneous colitis, making it the foundational model for IBD research.
Microbiome Connection
- SCFA-driven IL-10: butyrate from gut commensals promotes Treg differentiation → IL-10 production. Dysbiosis-driven butyrate loss reduces IL-10, shifting the th17 treg balance toward inflammation.
- COVID-19: IL-10 elevation relative to IL-6 (e.g., via Dialister enrichment) may support recovery; restoring IL-10:IL-6 ratio is a therapeutic target Chen2023 gut microbiota inflammatory mendelian covid.
- ASD: IL-10 paradoxically elevated (9.64 vs. 6.04 pg/ml) alongside pro-inflammatory cytokines, suggesting compensatory anti-inflammatory response cao 2021 dysbiotic gut microbiota cytokine profile asd.
- Endometriosis: IL-10 elevated in peritoneal fluid (compensatory to TNF-alpha/IL-6 excess) wang 2018 inflammatory cytokines peritoneal flora endometriosis infertility.
- Schizophrenia: Reduced IL-10 contributes to Th17/Treg imbalance ermakov 2022 immune system abnormalities schizophrenia.
Cross-References
- th17 treg balance — IL-10 as Treg effector cytokine
- butyrate — drives Treg → IL-10 production
- interleukin 6 — IL-10 antagonizes IL-6 signaling
- tnf alpha — IL-10 suppresses TNF-alpha production
- immune balance — IL-10 as tolerance mediator