期刊
EXPERIMENTAL CELL RESEARCH
卷 315, 期 11, 页码 1791-1797出版社
ELSEVIER INC
DOI: 10.1016/j.yexcr.2009.03.019
关键词
Neutrophils; NF-kappa B; NFAT; PHD; Cytokines; ROS; NO
资金
- Deutsche Forschungsgemeinschaft [815]
- Deutsche Krebshilfe, Sander Foundation, LOEWE (LiFF) program
- European Community (PROLIGEN)
Hypoxia-inducible factor (HIF) is a transcriptional activator that coordinates adaptive responses to hypoxia. All increased activity is recognized in the majority of clinical relevant hypoxic/ischemic episodes and human cancers. However, studies with HIF-1 alpha knockout mice revealed all important role of HIF-1 lot physiology such as embryogenesis or glycolytic energy production. The discovery that HIF-1 activity is not only restricted to pathological conditions of reduced oxygen availability but also is needed for the normal O-2-homeostasis by regulating O-2-delivery and consumption opens a diverse spectrum of so far unappreciated HIF-1 functions in several organs, including the immune system. Innate immune responses are orchestrated by macrophages. These cells respond to environmental input signals and ill turn generate appropriate answers to initiate resolution Of inflammation. It appears that multiple pathways in the inflammatory microenvironment are Used to adjust HIF-1 a levels to affect macrophage biology. This review summarizes mechanisms of HIF activation in mammalian immune cells, especially in macrophages and neutrophils, and outlines how HIF moderates inflammation. (C) 2009 Elsevier Inc. All rights reserved.
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