{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,29]],"date-time":"2026-09-29T07:38:56Z","timestamp":1790667536357,"version":"4.1.0"},"reference-count":75,"publisher":"MDPI AG","issue":"12","license":[{"start":{"date-parts":[[2021,12,9]],"date-time":"2021-12-09T00:00:00Z","timestamp":1639008000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Canc\u00e9rop\u00f4le, Grand Sud-D Ouest, France","award":["2020-E06"],"award-info":[{"award-number":["2020-E06"]}]},{"name":"Association les R\u00e9coltes de l\u2019Espoir","award":["RE-2021-1AD-F"],"award-info":[{"award-number":["RE-2021-1AD-F"]}]},{"name":"Association Cassandra contre les Leuc\u00e9mies et Cancers P\u00e9diatriques","award":["OPE-2018-0144"],"award-info":[{"award-number":["OPE-2018-0144"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Cells"],"abstract":"<jats:p>Metabolic rewiring in tumor cells is a major hallmark of oncogenesis. Some of the oncometabolites drive suppressive and tolerogenic signals from the immune system, which becomes complicit to the advent and the survival of neoplasia. Tryptophan (TRP) catabolism through the kynurenine (KYN) pathway was reported to play immunosuppressive actions across many types of cancer. Extensive debate of whether the culprit of immunosuppression was the depletion of TRP or rather KYN accumulation in the tumor microenvironment has been ongoing for years. Results from clinical trials assessing the benefit of inhibiting key limiting enzymes of this pathway such as indoleamine 2,3-dioxygenase (IDO1) or tryptophan 2,3-dioxygenase (TDO2) failed to meet the expectations. Bearing in mind the complexity of the tumoral terrain and the existence of different cancers with IDO1\/TDO2 expressing and non-expressing tumoral cells, here we present a comprehensive analysis of the TRP global metabolic hub and the driving potential of the process of oncogenesis with the main focus on liver cancers.<\/jats:p>","DOI":"10.3390\/cells10123469","type":"journal-article","created":{"date-parts":[[2021,12,9]],"date-time":"2021-12-09T21:52:32Z","timestamp":1639086752000},"page":"3469","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":21,"title":["Immuno-Metabolic Modulation of Liver Oncogenesis by the Tryptophan Metabolism"],"prefix":"10.3390","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2487-7571","authenticated-orcid":false,"given":"V\u00e9ronique","family":"Tr\u00e9z\u00e9guet","sequence":"first","affiliation":[{"name":"MiRCade Team, BMGIC, INSERM U1035, University of Bordeaux, F-33000 Bordeaux, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hala","family":"Fatrouni","sequence":"additional","affiliation":[{"name":"MiRCade Team, BMGIC, INSERM U1035, University of Bordeaux, F-33000 Bordeaux, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4030-4538","authenticated-orcid":false,"given":"Aksam J.","family":"Merched","sequence":"additional","affiliation":[{"name":"MiRCade Team, BMGIC, INSERM U1035, University of Bordeaux, F-33000 Bordeaux, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"222","DOI":"10.1038\/s41590-018-0044-z","article-title":"The Immunology of Hepatocellular Carcinoma","volume":"19","author":"Ringelhan","year":"2018","journal-title":"Nat. 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