PMID- 25546605 OWN - NLM STAT- MEDLINE DCOM- 20151208 LR - 20220316 IS - 1097-4644 (Electronic) IS - 0730-2312 (Linking) VI - 116 IP - 5 DP - 2015 May TI - Regulation of hypoxia-inducible factor-1a by reactive oxygen species: new developments in an old debate. PG - 696-703 LID - 10.1002/jcb.25074 [doi] AB - Hypoxia-Inducible Factor-1 (HIF-1) has been largely studied for its role in cell survival in hypoxic conditions. The regulation of HIF-1 is a complex process and involves a number of molecules and pathways. Among these mechanisms a direct regulatory role of reactive oxygen species (ROS) on HIF-1 alpha subunit has received a great deal of attention and the existing body of literature includes many contradictory findings. Other intermediates such as nitric oxide (NO), specific microRNAs (miR), and transcriptional and post-translational modification have also been implicated as players in ROS mediated HIF-1a regulation. The focus of this review is to present the past conflicting evidence along with more recent findings in order to relate various aspects of this complex process. Aside from the direct role of ROS on HIF-1a regulation under hypoxia and normoxia, we analyzed the effect of different sources and concentrations of NO and the interplay between superoxide (SO) and NO in this process. We also present findings on transcriptional and translational regulation of HIF-1a via ROS and the interplay with microRNAs in this process. This review further provides insight on ERK and PI3K/AKT signaling as a common mechanism relating several pathways of ROS mediated HIF-1a regulation. Ultimately further research and discovery regarding HIF-1 regulation by oxidative stress is warranted for better understanding of disease development and potential therapeutics for pathologies such as cancer, inflammatory diseases, and ischemia-reperfusion injury. CI - (c) 2014 Wiley Periodicals, Inc. FAU - Movafagh, Shahrzad AU - Movafagh S AD - Department of Pharmacogenomics, Bernard J. Dunn School of Pharmacy, Shenandoah University, Ashburn, Virginia. FAU - Crook, Sean AU - Crook S FAU - Vo, Kim AU - Vo K LA - eng PT - Journal Article PT - Review PL - United States TA - J Cell Biochem JT - Journal of cellular biochemistry JID - 8205768 RN - 0 (Hypoxia-Inducible Factor 1, alpha Subunit) RN - 0 (MicroRNAs) RN - 0 (Reactive Oxygen Species) RN - 11062-77-4 (Superoxides) RN - 31C4KY9ESH (Nitric Oxide) RN - EC 2.7.1.- (Phosphatidylinositol 3-Kinases) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) SB - IM MH - Cell Hypoxia MH - Humans MH - Hypoxia-Inducible Factor 1, alpha Subunit/genetics/*metabolism MH - MAP Kinase Signaling System MH - MicroRNAs/metabolism MH - Mitochondria/metabolism MH - Nitric Oxide/metabolism MH - Phosphatidylinositol 3-Kinases/metabolism MH - Proto-Oncogene Proteins c-akt/metabolism MH - Reactive Oxygen Species/*metabolism MH - Signal Transduction MH - Superoxides/metabolism OTO - NOTNLM OT - ERK OT - HIF-1 OT - HYPOXIA OT - MICRORNA OT - NITRIC OXIDE OT - PI3K/AKT OT - SUPEROXIDE EDAT- 2014/12/30 06:00 MHDA- 2015/12/15 06:00 CRDT- 2014/12/30 06:00 PHST- 2014/12/17 00:00 [received] PHST- 2014/12/18 00:00 [accepted] PHST- 2014/12/30 06:00 [entrez] PHST- 2014/12/30 06:00 [pubmed] PHST- 2015/12/15 06:00 [medline] AID - 10.1002/jcb.25074 [doi] PST - ppublish SO - J Cell Biochem. 2015 May;116(5):696-703. doi: 10.1002/jcb.25074.