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Title: Therapeutic targeting of oxygen-sensing prolyl hydroxylases abrogates ATF4-dependent neuronal death and improves outcomes after brain hemorrhage in several rodent models

Journal Article · · Science Translational Medicine
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  1. Burke Medical Research Inst., White Plains, NY (United States). Sperling Center for Hemorrhagic Stroke Recovery; Weill Medical Collage of Cornell Univ., New York, NY (United States). Feil Family Brain and Mind Research Inst.
  2. Univ. of Alberta, Edmonton, AB (Canada)
  3. Univ. of Oxford (United Kingdom)
  4. Phillips-Univ. Marburg, Marburg (Germany). Inst. fuer Pharmakologie and Klinische Pharmazie
  5. Weill Medical Collage of Cornell Univ., New York, NY (United States). Dept. of Biochemistry
  6. Children’s Hospital of Oakland, Oakland, CA (United States)
  7. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Neurology
  8. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Neurosurgery
  9. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Neurosurgery
  10. Univ. of Texas, Austin, TX (United States). Dept. of Psychology
  11. Brookhaven National Lab. (BNL), Upton, NY (United States). Photon Sciences Directorate
  12. Univ. of California, Santa Cruz, CA (United States). Dept. of Chemistry and Biochemistry
  13. Univ. of Connecticut Health Center, Farmington, CT (United States). Center for Vascular Biology
  14. Johns Hopkins Univ. School of Medicine, Baltimore, MD (United States). Inst.for Cell Engineering
  15. Univ. of California, Los Angeles, CA (United States). Dept. of Psychiatry

Disability or death due to intracerebral hemorrhage (ICH) is attributed to blood lysis, liberation of iron and consequent oxidative stress. Iron chelators bind to free iron and prevent neuronal death induced by oxidative stress and disability due to ICH, but the mechanisms for this effect remain unclear. Here we show that the hypoxia-inducible factor prolyl-hydroxylase (HIF- PHD) family of iron-dependent oxygen sensing enzymes are effectors of iron chelation. Molecular reduction of the three HIF-PHD enzyme isoforms in mouse striatum improved functional recovery following ICH. A low molecular weight hydroxyquinoline inhibitor of the HIF-PHDs, adaptaquin, reduced neuronal death and behavioral deficits following ICH in several rodent models without affecting total iron or zinc distribution in the brain. Unexpectedly, protection from oxidative death in vitro or from ICH in vivo by adaptaquin was associated with suppression of expression of the prodeath factor ATF4 rather than activation of a HIF-dependent prosurvival pathway. In conclusion, together these findings demonstrate that brain-specific inactivation of the HIF-PHD metalloenzymes with the blood-brain barrier permeable inhibitor adaptaquin can improve functional outcomes following ICH in multiple rodent species.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1340386
Report Number(s):
BNL-112574-2016-JA
Journal Information:
Science Translational Medicine, Vol. 8, Issue 328; ISSN 1946-6234
Publisher:
AAASCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 93 works
Citation information provided by
Web of Science

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Cited By (11)

The Potential Role of Ferroptosis in Neonatal Brain Injury journal February 2019
Sex differences in neonatal mouse brain injury after hypoxia‐ischemia and adaptaquin treatment journal July 2019
Nogo-A/Pir-B/TrkB Signaling Pathway Activation Inhibits Neuronal Survival and Axonal Regeneration After Experimental Intracerebral Hemorrhage in Rats journal July 2019
3-Nitrotyrosine: a versatile oxidative stress biomarker for major neurodegenerative diseases journal January 2020
N-acetylcysteine targets 5 lipoxygenase-derived, toxic lipids and can synergize with prostaglandin E 2 to inhibit ferroptosis and improve outcomes following hemorrhagic stroke in mice: NAC Synergizes With PGE 2 to Improve Outcomes After ICH journal November 2018
Current and emerging avenues for Alzheimer's disease drug targets journal June 2019
Syringe-injectable mesh electronics integrate seamlessly with minimal chronic immune response in the brain journal May 2017
CD163 Expression in Neurons After Experimental Intracerebral Hemorrhage journal May 2017
Neuroprotective action of PHD inhibitors is predominantly HIF‐1‐independent: An Editorial for ‘Sex differences in neonatal mouse brain injury after hypoxia‐ischemia and adaptaquin treatment’ on page 759. journal July 2019
Rehabilitation following hemorrhagic stroke: building the case for stroke-subtype specific recovery therapies journal November 2017
Ferroptosis in Neurons and Cancer Cells Is Similar But Differentially Regulated by Histone Deacetylase Inhibitors journal January 2019

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