Evidence map›Paper›PMID 25063801›Full record

ArticleAmerican journal of physiology. Lung cellular and molecular physiology2014

Glucose-6-phosphate dehydrogenase plays a critical role in hypoxia-induced CD133+ progenitor cells self-renewal and stimulates their accumulation in the lungs of pulmonary hypertensive rats.

Sukrutha Chettimada, Sachindra Raj Joshi, Abdallah Alzoubi, Sarah A Gebb, Ivan F McMurtry, Rakhee Gupte, Sachin A Gupte

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Lung cellular and molecular physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
1.1field-weighted citation impact, top 23% 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

22 citing papers in PubMed, 30 citations in OpenAlex.

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  15. Mitochondrial dysfunction and pulmonary hypertension: cause, effect, or both.American journal of physiology. Lung cellular and molecular physiology · 2018
    Review
  16. Review
  17. Review
  18. American journal of physiology. Heart and circulatory physiology · 2017
    Article
  19. Cyp2c44-mediated decrease of 15-HETE exacerbates pulmonary hypertension.American journal of physiology. Heart and circulatory physiology · 2017
    Article
  20. Review
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

7 authors at 1 institution in 1 country.

Sukrutha ChettimadaDepartment of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama;
Sachindra Raj JoshiDepartment of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama;
Abdallah AlzoubiDepartment of Pharmacology, College of Medicine, University of South Alabama, Mobile, Alabama;
Sarah A GebbDepartment of Cell Biology and Neuroscience, University of South Alabama, Mobile, Alabama; and.
Ivan F McMurtryDepartment of Pharmacology, College of Medicine, University of South Alabama, Mobile, Alabama; Center for Lung Biology, University of South Alabama, Mobile, Alabama.
Rakhee GupteDepartment of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama; sachin_gupte@yahoo.com s_gupte@nymc.edu.
Sachin A GupteDepartment of Biochemistry and Molecular Biology, University of South Alabama, Mobile, Alabama; Center for Lung Biology, University of South Alabama, Mobile, Alabama.
University of South Alabama · US

Funding

Regulation of Vascular Smooth Muscle Calcium by NADPH RedoxR01HL085352 · NHLBI · UNIVERSITY OF SOUTH ALABAMA · PI GUPTE, SACHIN A · 2008 to 2012
$1.9M
NHLBI NIH HHS R01 HL085352
6 · The paper itself

Abstract

Although hypoxia is detrimental to most cell types, it aids survival of progenitor cells and is associated with diseases like cancer and pulmonary hypertension in humans. Therefore, understanding the underlying mechanisms that promote survival of progenitor cells in hypoxia and then developing novel therapies to stop their growth in hypoxia-associated human diseases is important. Here we demonstrate that the proliferation and growth of human CD133(+) progenitor cells, which contribute to tumorigenesis and the development of pulmonary hypertension, are increased when cultured under hypoxic conditions. Furthermore, glucose-6-phosphate dehydrogenase (G6PD) activity was increased threefold in hypoxic CD133(+) cells. The increased G6PD activity was required for CD133(+) cell proliferation, and their growth was arrested by G6PD inhibition or knockdown. G6PD activity upregulated expression of HIF1α, cyclin A, and phospho-histone H3, thereby promoting CD133(+) cell dedifferentiation and self-renewal and altering cell cycle regulation. When CD133(+) cells were cocultured across a porous membrane from pulmonary artery smooth muscle cells (PASMCs), G6PD-dependent H2O2 production and release by PASMCs recruited CD133(+) cells to the membrane, where they attached and expressed smooth muscle markers (α-actin and SM22α). Inhibition of G6PD reduced smooth muscle marker expression in CD133(+) cells under normoxia but not hypoxia. In vivo, CD133(+) cells colocalized with G6PD(+) cells in the perivascular region of lungs from rats with hypoxia-induced pulmonary hypertension. Finally, inhibition of G6PD by dehydroepiandrosterone in pulmonary arterial hypertensive rats nearly abolished CD133(+) cell accumulation around pulmonary arteries and the formation of occlusive lesions. These observations suggest G6PD plays a key role in increasing hypoxia-induced CD133(+) cell survival in hypertensive lungs that differentiate to smooth muscle cells and contribute to pulmonary arterial remodeling during development of pulmonary hypertension.

Indexed as

Cell ProliferationAC133 AntigenAdministration, OralAnimalsAntigens, CDCell DifferentiationCell HypoxiaCoculture TechniquesDehydroepiandrosteroneGlucosephosphate DehydrogenaseGlycoproteinsHumansHypertension, PulmonaryHypoxia-Inducible Factor 1, alpha SubunitLungMaleAC133 AntigenAntigens, CDDehydroepiandrosteroneGlucosephosphate DehydrogenaseGlycoproteinsHif1a protein, ratHypoxia-Inducible Factor 1, alpha SubunitPeptidesPROM1 protein, humanProm1 protein, ratReactive Oxygen SpeciesTransforming Growth Factor betacell cyclecyclin AdedifferentiationHIFNotchpentose phosphate pathwayphenotypephospho-histone H3pulmonary artery smooth muscle cellspulmonary hypertension

Identifiers

PMID25063801
PMCPMC7199226
OpenAlexW2151681636

What OpenQuestion holds

Textmetadata
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.