{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T19:38:06Z","timestamp":1791315486074,"version":"4.3.1"},"reference-count":146,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2025,7,23]],"date-time":"2025-07-23T00:00:00Z","timestamp":1753228800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Microbiol."],"abstract":"<jats:p>Colorectal cancer (CRC) is a growing public health concern due to its rising incidence and high rate of cancer-associated deaths. Emerging evidence suggests that gut microbiota and their metabolites are critically involved in the initiation and advancement of CRC. These metabolites, which originate from the breakdown of nutrients from food and host-related substances through microbial activity in the gut, can profoundly influence tumor formation. In addition to well-studied compounds such as short-chain fatty acids (SCFAs), bile acids (BAs), tryptophan metabolites, and polyamines, this review highlights emerging metabolites\u2014including hydrogen sulfide (H\u2082S) and formate\u2014that have recently drawn attention for their roles in colorectal carcinogenesis. We also incorporate recent mechanistic insights, such as butyrate-induced ferroptosis and H<jats:sub>2<\/jats:sub>S-mediated protein persulfidation, to illustrate how microbial metabolites influence cancer cell metabolism. Moreover, the potential of microbial metabolites as biomarkers for early diagnosis and prognosis of CRC is discussed. Therapeutic strategies targeting microbial metabolites\u2014such as dietary modulation, combination therapies, fecal microbiota transplantation (FMT), and phage therapy\u2014are also reviewed. By providing a comprehensive and up-to-date overview of microbial metabolic networks associated with CRC, this review underscores the critical functions of gut microbial metabolites in tumorigenesis, offering novel insights into their utility as diagnostic and prognostic biomarkers, as well as promising therapeutic targets.<\/jats:p>","DOI":"10.3389\/fmicb.2025.1611698","type":"journal-article","created":{"date-parts":[[2025,7,23]],"date-time":"2025-07-23T05:36:12Z","timestamp":1753248972000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":38,"title":["Metabolic interactions: how gut microbial metabolites influence colorectal cancer"],"prefix":"10.3389","volume":"16","author":[{"given":"Qinhan","family":"Cao","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Meiju","family":"Yang","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Min","family":"Chen","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1965","published-online":{"date-parts":[[2025,7,23]]},"reference":[{"key":"ref1","doi-asserted-by":"publisher","first-page":"680","DOI":"10.1016\/j.ccell.2025.03.013","article-title":"Diet-microbiome interactions in cancer","volume":"43","author":"Abdeen","year":"2025","journal-title":"Cancer Cell"},{"key":"ref2","doi-asserted-by":"publisher","first-page":"135320","DOI":"10.1016\/j.foodchem.2022.135320","article-title":"Diet as a modifiable factor in tumorigenesis: focus on microbiome-derived bile acid metabolites and short-chain fatty acids","volume":"410","author":"Ahmad","year":"2023","journal-title":"Food Chem."},{"key":"ref3","doi-asserted-by":"publisher","first-page":"826","DOI":"10.3389\/fmicb.2019.00826","article-title":"Identifying gut microbiota associated with colorectal cancer using a zero-inflated lognormal model","volume":"10","author":"Ai","year":"2019","journal-title":"Front. 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