Evidence map›Paper›PMID 26298201›Full record

ArticleRedox biology2015

Complex I dysfunction underlies the glycolytic switch in pulmonary hypertensive smooth muscle cells.

Ruslan Rafikov, Xutong Sun, Olga Rafikova, Mary Louise Meadows, Ankit A Desai, Zain Khalpey, Jason X-J Yuan, Jeffrey R Fineman, Stephen M Black

Open access · goldAbstract read
In one paragraph

Article in Redox biology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed
3.8field-weighted citation impact, top 6% 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

64 citing papers in PubMed, 100 citations in OpenAlex.

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  11. Restoration of pp60International journal of molecular sciences · 2025
    Article
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  15. Article
  16. Metabolic Responses to Redox Stress in Vascular Cells.Antioxidants & redox signaling · 2024
    Review
  17. Article
  18. Review
  19. Article
  20. Article

4 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 3 institutions in 1 country.

Ruslan RafikovDivision of Translational and Regenerative Medicine, The University of Arizona, Tucson, AZ, USA; Department of Medicine, The University of Arizona, Tucson, AZ, USA. Electronic address: ruslanrafikov@deptofmed.arizona.edu.
Xutong SunDivision of Translational and Regenerative Medicine, The University of Arizona, Tucson, AZ, USA; Department of Medicine, The University of Arizona, Tucson, AZ, USA.
Olga RafikovaDivision of Translational and Regenerative Medicine, The University of Arizona, Tucson, AZ, USA; Department of Medicine, The University of Arizona, Tucson, AZ, USA.
Mary Louise MeadowsVascular Biology Center, Georgia Regents University, Augusta, GA, USA.
Ankit A DesaiDepartment of Medicine, The University of Arizona, Tucson, AZ, USA.
Zain KhalpeyDepartment of Surgery, The University of Arizona, Tucson, AZ, USA.
Jason X-J YuanDivision of Translational and Regenerative Medicine, The University of Arizona, Tucson, AZ, USA; Department of Medicine, The University of Arizona, Tucson, AZ, USA.
Jeffrey R FinemanDepartment of Pediatrics and the University of California San Francisco, San Francisco, CA, USA; Cardiovascular Research Institute, University of California San Francisco, San Francisco, CA, USA.
Stephen M BlackDivision of Translational and Regenerative Medicine, The University of Arizona, Tucson, AZ, USA; Department of Medicine, The University of Arizona, Tucson, AZ, USA. Electronic address: steveblack@email.arizona.edu.
University of Arizona · USGeorgia Regents Medical Center · USUniversity of California, San Francisco · US

Funding

Therapeutic Mechanisms of RhoA Inhibition In Acute Lung InjuryP01HL101902 · NHLBI · AUGUSTA UNIVERSITY · PI BLACK, STEPHEN M · 2011 to 2016
$11.2M
PERINATAL PULMONARY HYPERTENSION: DEVELOPMENT MEDIATORSR01HL061284 · NHLBI · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI FINEMAN, JEFFREY R · 1999 to 2016
$8.3M
PERINATAL REGULATION OF THE ENDOTHELIAL NOS GENER01HL060190 · NHLBI · UNIVERSITY OF MONTANA · PI Stephen M Black · 1998 to 2026
$7.1M
Anaplerotic reprogramming of endothelial cells in pulmonary hypertension.R01HL132918 · NHLBI · UNIVERSITY OF ARIZONA · PI RAFIKOV, RUSLAN · 2016 to 2025
$4.5M
Research Training in Pediatric Critical Care MedicineT32HD049303 · NICHD · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI JEFFREY R FINEMAN · 2006 to 2026
$3.1M
ROS in Pulmonary Hypertension: Role of ADMAR01HL067841 · NHLBI · UNIVERSITY OF MONTANA · PI BLACK, STEPHEN M · 2002 to 2011
$2.6M
THE ROLE (S) OF PYK2 IN CARDIAC HYPERTROPHYF32HL010313 · NHLBI · LOYOLA UNIVERSITY CHICAGO · PI BAYER, ALLISON LORAYNE · 2000 to 2002
$84k
American Heart Association-American Stroke Association 14SDG20480354NHLBI NIH HHS F32 HL010313NHLBI NIH HHS F32HL10313NHLBI NIH HHS HL60190NHLBI NIH HHS HL61284NHLBI NIH HHS HL67841NHLBI NIH HHS P01HL0101902NHLBI NIH HHS P01 HL101902NHLBI NIH HHS R01 HL060190NHLBI NIH HHS R01 HL061284NHLBI NIH HHS R01 HL067841NHLBI NIH HHS R01 HL132918NICHD NIH HHS T32 HD049303
6 · The paper itself

Abstract

ATP is essential for cellular function and is usually produced through oxidative phosphorylation. However, mitochondrial dysfunction is now being recognized as an important contributing factor in the development cardiovascular diseases, such as pulmonary hypertension (PH). In PH there is a metabolic change from oxidative phosphorylation to mainly glycolysis for energy production. However, the mechanisms underlying this glycolytic switch are only poorly understood. In particular the role of the respiratory Complexes in the mitochondrial dysfunction associated with PH is unresolved and was the focus of our investigations. We report that smooth muscle cells isolated from the pulmonary vessels of rats with PH (PH-PASMC), induced by a single injection of monocrotaline, have attenuated mitochondrial function and enhanced glycolysis. Further, utilizing a novel live cell assay, we were able to demonstrate that the mitochondrial dysfunction in PH-PASMC correlates with deficiencies in the activities of Complexes I-III. Further, we observed that there was an increase in mitochondrial reactive oxygen species generation and mitochondrial membrane potential in the PASMC isolated from rats with PH. We further found that the defect in Complex I activity was due to a loss of Complex I assembly, although the assembly of Complexes II and III were both maintained. Thus, we conclude that loss of Complex I assembly may be involved in the switch of energy metabolism in smooth muscle cells to glycolysis and that maintaining Complex I activity may be a potential therapeutic target for the treatment of PH.

Indexed as

AnimalsElectron TransportElectron Transport Complex IElectron Transport Complex IIElectron Transport Complex IIIGene Expression RegulationGlycolysisHypertension, PulmonaryLungMaleMembrane Potential, MitochondrialMitochondriaMonocrotalineMyocytes, Smooth MuscleOxidative PhosphorylationPrimary Cell CultureElectron Transport Complex IElectron Transport Complex IIElectron Transport Complex IIIMonocrotalineReactive Oxygen SpeciesElectron transport chainMitochondriaPulmonary hypertensionWarburg effect

Identifiers

PMID26298201
PMCPMC4556771
OpenAlexW2202999240

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.