PMID- 28545736 OWN - NLM STAT- MEDLINE DCOM- 20180319 LR - 20220318 IS - 1879-0305 (Electronic) IS - 1359-6101 (Linking) VI - 35 DP - 2017 Jun TI - Amino-acid sensing and degrading pathways in immune regulation. PG - 37-45 LID - S1359-6101(17)30076-X [pii] LID - 10.1016/j.cytogfr.2017.05.004 [doi] AB - Indoleamine 2,3-dioxygenases (IDOs) - belonging in the heme dioxygenase family and degrading tryptophan - are responsible for the de novo synthesis of nicotinamide adenine dinucleotide (NAD(+)). As such, they are expressed by a variety of invertebrate and vertebrate species. In mammals, IDO1 has remarkably evolved to expand its functions, so to become a prominent homeostatic regulator, capable of modulating infection and immunity in multiple ways, including local tryptophan deprivation, production of biologically active tryptophan catabolites, and non-enzymatic cell-signaling activity. Much like IDO1, arginase 1 (Arg1) is an immunoregulatory enzyme that catalyzes the degradation of arginine. Here, we discuss the possible role of amino-acid degradation as related to the evolution of the immune systems and how the functions of those enzymes are linked by an entwined pathway selected by phylogenesis to meet the newly arising needs imposed by an evolving environment. CI - Copyright (c) 2017 The Authors. Published by Elsevier Ltd.. All rights reserved. FAU - Grohmann, Ursula AU - Grohmann U AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. Electronic address: ursula.grohmann@unipg.it. FAU - Mondanelli, Giada AU - Mondanelli G AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Belladonna, Maria L AU - Belladonna ML AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Orabona, Ciriana AU - Orabona C AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Pallotta, Maria T AU - Pallotta MT AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Iacono, Alberta AU - Iacono A AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Puccetti, Paolo AU - Puccetti P AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. FAU - Volpi, Claudia AU - Volpi C AD - Department of Experimental Medicine, University of Perugia, 06132 Perugia, Italy. LA - eng PT - Journal Article PT - Review DEP - 20170518 PL - England TA - Cytokine Growth Factor Rev JT - Cytokine & growth factor reviews JID - 9612306 RN - 0 (Amino Acids) RN - 0 (IDO1 protein, human) RN - 0 (Indoleamine-Pyrrole 2,3,-Dioxygenase) RN - 0 (Transforming Growth Factor beta1) RN - 207137-56-2 (Interleukin-4) RN - 82115-62-6 (Interferon-gamma) RN - 8DUH1N11BX (Tryptophan) RN - EC 3.5.3.1 (Arginase) SB - IM MH - Amino Acids/*metabolism MH - Animals MH - Arginase/metabolism MH - Dendritic Cells/enzymology/*immunology MH - Gene Expression Regulation MH - Humans MH - Indoleamine-Pyrrole 2,3,-Dioxygenase/genetics/metabolism MH - Interferon-gamma/immunology MH - Interleukin-4/immunology MH - Mice MH - Neoplasms/immunology/metabolism MH - Signal Transduction MH - Transforming Growth Factor beta1/immunology MH - Tryptophan/metabolism OTO - NOTNLM OT - Arg1 OT - Dendritic cell OT - IDO1 OT - Immune regulation EDAT- 2017/05/27 06:00 MHDA- 2018/03/20 06:00 CRDT- 2017/05/27 06:00 PHST- 2017/05/15 00:00 [received] PHST- 2017/05/15 00:00 [accepted] PHST- 2017/05/27 06:00 [pubmed] PHST- 2018/03/20 06:00 [medline] PHST- 2017/05/27 06:00 [entrez] AID - S1359-6101(17)30076-X [pii] AID - 10.1016/j.cytogfr.2017.05.004 [doi] PST - ppublish SO - Cytokine Growth Factor Rev. 2017 Jun;35:37-45. doi: 10.1016/j.cytogfr.2017.05.004. Epub 2017 May 18.