Gut microbiota and short-chain fatty acid (SCFA) production (SCFA production)

The gut microbiota and short-chain fatty acid (SCFA) production system represents a critical metabolic interface between the host and its symbiotic microbial community. This process involves the anaerobic fermentation of non-digestible dietary fibers by specific bacterial taxa, resulting in the generation of acetate, propionate, and butyrate, which serve as vital signaling molecules (Koh et al., 2016, Cell). These SCFAs exert systemic effects by activating host G protein-coupled receptors such as FFAR2 (GPR43) and FFAR3 (GPR41), and by inhibiting histone deacetylases (HDACs), thereby modulating inflammation, glucose metabolism, and appetite (Blaak et al., 2020, Nature Reviews Endocrinology). While not a single molecular target, the modulation of SCFA production is a major therapeutic objective in treating obesity, type 2 diabetes, and inflammatory bowel diseases. Current pharmacological and nutritional interventions, including prebiotics and certain antidiabetic drugs like metformin, aim to optimize the microbial landscape to restore healthy SCFA levels (Silva et al., 2020, Frontiers in Endocrinology). Understanding this system is essential for developing next-generation microbiome-targeted therapies and personalized nutrition strategies.

Other names

Gut microbiome fermentationMicrobial SCFA synthesisIntestinal SCFA productionMicrobiota-derived short-chain fatty acid signaling

Modulation of gut microbial fermentation to increase the production of acetate, propionate, and butyrate, which subsequently activate host G protein-coupled receptors (FFAR2, FFAR3) and inhibit histone deacetylases (HDACs).