Indoleamine 2,3 dioxygenase and metabolic control of immune responses.

Indoleamine 2,3 dioxygenase and metabolic control of immune responses.
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DOI:
10.1016/j.it.2012.10.001
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发表时间:
2013-03
影响因子:
16.8
通讯作者:
Mellor AL
Mellor AL
中科院分区:
医学1区
文献类型:
--
作者:
Munn DH;Mellor AL

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持续获得营养是一种基本的生物学需求,特别是对于增殖细胞,控制营养供应是调节细胞对刺激反应的古老策略。通过分解代谢必需氨基酸色氨酸,表达吲哚胺2,3双加氧酶(IDO)的细胞可以介导对炎症损伤的先天性和适应性免疫应答的有效局部作用。在这里,我们讨论了阐明IDO活性如何促进局部代谢变化的最新进展,这些变化影响细胞和全身对炎症和免疫信号的反应。这些最新的发展确定了在一系列临床环境中治疗的潜在新靶点,包括癌症、慢性感染、自身免疫和过敏综合征以及移植。
Sustained access to nutrients is a fundamental biological need, especially for proliferating cells, and controlling nutrient supply is an ancient strategy to regulate cellular responses to stimuli. By catabolizing the essential amino acid tryptophan, cells expressing the enzyme indoleamine 2,3 dioxygenase (IDO) can mediate potent local effects on innate and adaptive immune responses to inflammatory insults. Here, we discuss recent progress in elucidating how IDO activity promotes local metabolic changes that impact cellular and systemic responses to inflammatory and immunologic signals. These recent developments identify potential new targets for therapy in a range of clinical settings, including cancer, chronic infections, autoimmune and allergic syndromes, and transplantation.
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