Evidence map›Paper›PMID 36645044›Full record

ArticleEMBO molecular medicine2023

HIF2α activation and mitochondrial deficit due to iron chelation cause retinal atrophy.

Yang Kong, Pei-Kang Liu, Yao Li, Nicholas D Nolan, Peter M J Quinn, Chun-Wei Hsu, Laura A Jenny, Jin Zhao, Xuan Cui, Ya-Ju Chang and 4 more

Open access · goldAbstract read
In one paragraph

Article in EMBO molecular medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
7.8field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Steap4 Promotes Senile Osteoporosis via FeAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  7. Article
  8. Article
  9. Review
  10. Why cells need iron: a compendium of iron utilisation.Trends in endocrinology and metabolism: TEM · 2024
    Review
  11. Article
  12. Article
  13. Article
  14. Medium Depth Influences O2 Availability and Metabolism in Human RPE Cultures.Investigative ophthalmology & visual science · 2023
    Article
  15. Review
  16. Lifting the iron curtain of vision.EMBO molecular medicine · 2023
    Article
  17. Article
  18. Article
  19. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 3 institutions in 2 countries.

Yang Kong *Department of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0003-3925-5572
Pei-Kang Liu *Department of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0002-6417-4363
Yao Li *Department of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Nicholas D NolanDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0002-9236-8309
Peter M J QuinnDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0001-9940-4264
Chun-Wei HsuDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Laura A JennyDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0001-8959-7074
Jin ZhaoDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0002-1934-6445
Xuan CuiDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Ya-Ju ChangDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Katherine J WertDepartments of Ophthalmology and Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.ORCID 0000-0002-8430-2916
Janet R SparrowDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.
Nan-Kai WangDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0002-6277-9879
Stephen H TsangDepartment of Ophthalmology, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, USA.ORCID 0000-0001-9082-2427
Columbia University · USNational Sun Yat-sen University · TWThe University of Texas Southwestern Medical Center · US

Funding

Tumor Biology and Microenvironment ProgramP30CA013696 · NCI · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI Anil K Rustgi · 1985 to 2026
$115.3M
Instrumentation, Fabrication, and Design CoreP30EY019007 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Xin Zhang · 2010 to 2026
$12.9M
Therapeutic gene editing and multimodal imaging in juvenile macular degeneration R24EY028758 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI AUDO , ISABELLE, SPARROW, JANET RUTHE · 2020 to 2024
$10.9M
The Jackson Laboratory Center for Precision Genetics: From New Models to Novel TherapeuticsU54OD020351 · OD · JACKSON LABORATORY · PI KORSTANJE, RONNY · 2015 to 2019
$10.2M
Translational Gene Therapy for CNGB1 Retinitis PigmentosaR24EY027285 · NEI · MICHIGAN STATE UNIVERSITY · PI HAUSWIRTH, WILLIAM W, MICHALAKIS, STYLIANOS · 2018 to 2022
$8.6M
Toward mechanism- and gene-based therapies for retinal degenerationR01EY018213 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Stephen H Tsang · 2008 to 2026
$6.6M
Gene Silencing and Gene Editing in PhototransductionR01EY024698 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI Stephen H Tsang · 2015 to 2026
$4.7M
Retinal Disease Promoted by Iron-Induced Bisretinoid OxidationR01EY028131 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI SPARROW, JANET RUTHE · 2018 to 2022
$2.6M
Enhancing cone survival in retinitis pigmentosa through cell-specific therapeutic CRISPR editing of a roxadustat targetR01EY033770 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI JAMES Bryant HURLEY, Stephen H Tsang · 2022 to 2026
$2.6M
Reprogramming the metabolome to overcome the genetic heterogeneity in retinitis pigmentosaR01EY031354 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI WANG, NAN-KAI · 2020 to 2024
$2.0M
Mechanistic Studies on Regenerative Medicine Approaches to Childhood BlindnessR01EY026682 · NEI · UNIVERSITY OF IOWA · PI BASSUK, ALEXANDER G, MAHAJAN, VINIT B · 2016 to 2019
$1.6M
Identification of the specific risk allele responsible for oxidative stress in ARMS2/HTRA1-related AMDU01EY034590 · NEI · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI MCFALINE-FIGUEROA, JOSE LUIS, TSANG, STEPHEN H · 2022 to 2024
$1.2M
NCI NIH HHS P30 CA013696NEI NIH HHS P30 EY019007NEI NIH HHS R01 EY018213NEI NIH HHS R01 EY024698NEI NIH HHS R01 EY026682NEI NIH HHS R01 EY028131NEI NIH HHS R01 EY031354NEI NIH HHS R01 EY033770NEI NIH HHS R24 EY027285NEI NIH HHS R24 EY028758NEI NIH HHS U01 EY030580NEI NIH HHS U01 EY034590NIA NIH HHS R21 AG050437NIH HHS S10 OD028637NIH HHS U54 OD020351
6 · The paper itself

Abstract

Iron accumulation causes cell death and disrupts tissue functions, which necessitates chelation therapy to reduce iron overload. However, clinical utilization of deferoxamine (DFO), an iron chelator, has been documented to give rise to systemic adverse effects, including ocular toxicity. This study provided the pathogenic and molecular basis for DFO-related retinopathy and identified retinal pigment epithelium (RPE) as the target tissue in DFO-related retinopathy. Our modeling demonstrated the susceptibility of RPE to DFO compared with the neuroretina. Intriguingly, we established upregulation of hypoxia inducible factor (HIF) 2α and mitochondrial deficit as the most prominent pathogenesis underlying the RPE atrophy. Moreover, suppressing hyperactivity of HIF2α and preserving mitochondrial dysfunction by α-ketoglutarate (AKG) protects the RPE against lesions both in vitro and in vivo. This supported our observation that AKG supplementation alleviates visual impairment in a patient undergoing DFO-chelation therapy. Overall, our study established a significant role of iron deficiency in initiating DFO-related RPE atrophy. Inhibiting HIF2α and rescuing mitochondrial function by AKG protect RPE cells and can potentially ameliorate patients' visual function.

Indexed as

Iron Chelating AgentsRetinal DiseasesAtrophyCell DeathHumansIron Chelating AgentsHIF2α upregulationiron deficiencymitochondrial deficitRPE atrophyα-ketoglutarate

Identifiers

PMID36645044
PMCPMC9906391
OpenAlexW4316468912

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.