Evidence map›Paper›PMID 29394091›Full record

ArticleAmerican journal of respiratory cell and molecular biology2018

Hypoxia Upregulates Estrogen Receptor β in Pulmonary Artery Endothelial Cells in a HIF-1α-Dependent Manner.

Andrea L Frump, Mona Selej, Jordan A Wood, Marjorie Albrecht, Bakhtiyor Yakubov, Irina Petrache, Tim Lahm

Open access · greenAbstract read
In one paragraph

Article in American journal of respiratory cell and molecular biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

31 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
  4. Review
  5. Article
  6. Lung endothelial cell heterogeneity in health and pulmonary vascular disease.American journal of physiology. Lung cellular and molecular physiology · 2025
    Review
  7. Article
  8. Article
  9. Rapamycin Increases the Development Competence of Yak (Animals : an open access journal from MDPI · 2025
    Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Sex and gender in pulmonary arterial hypertension.European respiratory review : an official journal of the European Respiratory Society · 2021
    Review
  18. Review
  19. Genetic Delivery and Gene Therapy in Pulmonary Hypertension.International journal of molecular sciences · 2021
    Review
  20. Article
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 2 institutions in 1 country.

Andrea L Frump1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Mona Selej1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Jordan A Wood1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Marjorie Albrecht1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Bakhtiyor Yakubov1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Irina Petrache1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Tim Lahm1 Division of Pulmonary, Critical Care, Sleep and Occupational Medicine, Department of Medicine.
Pulmonary and Critical Care Associates · USRichard L. Roudebush VA Medical Center · US

Funding

Ceramide-induced Lung Destruction in EmphysemaR01HL077328 · NHLBI · NATIONAL JEWISH HEALTH · PI PETRACHE, IRINA · 2006 to 2024
$8.0M
IU Training Program in Molecular Physiology and Clinical Mechanisms of Lung DiseaseT32HL091816 · NHLBI · INDIANA UNIVERSITY INDIANAPOLIS · PI Erick Forno, Roberto F. Machado · 2009 to 2026
$4.3M
Indiana Clinical and Translational Sciences InstituteTL1TR001107 · NCATS · INDIANA UNIVERSITY INDIANAPOLIS · PI DENNE, SCOTT C., SHEKHAR, ANANTHA · 2013 to 2017
$2.0M
Hypoxia-mediated protective estrogen receptor signaling in pulmonary hypertensionI01BX002042 · VA · VA EASTERN COLORADO HEALTH CARE SYSTEM · PI Tim Lahm · 2014 to 2026
–
BLRD VA I01 BX002042NCATS NIH HHS TL1 TR001107NHLBI NIH HHS R01 HL077328NHLBI NIH HHS T32 HL091816
6 · The paper itself

Abstract

17β-Estradiol (E2) attenuates hypoxia-induced pulmonary hypertension (HPH) through estrogen receptor (ER)-dependent effects, including inhibition of hypoxia-induced endothelial cell proliferation; however, the mechanisms responsible for this remain unknown. We hypothesized that the protective effects of E2 in HPH are mediated through hypoxia-inducible factor 1α (HIF-1α)-dependent increases in ERβ expression. Sprague-Dawley rats and ERα or ERβ knockout mice were exposed to hypobaric hypoxia for 2-3 weeks. The effects of hypoxia were also studied in primary rat or human pulmonary artery endothelial cells (PAECs). Hypoxia increased expression of ERβ, but not ERα, in lungs from HPH rats as well as in rat and human PAECs. ERβ mRNA time dependently increased in PAECs exposed to hypoxia. Normoxic HIF-1α/HIF-2α stabilization increased PAEC ERβ, whereas HIF-1α knockdown decreased ERβ abundance in hypoxic PAECs. In turn, ERβ knockdown in hypoxic PAECs increased HIF-2α expression, suggesting a hypoxia-sensitive feedback mechanism. ERβ knockdown in hypoxic PAECs also decreased expression of the HIF inhibitor prolyl hydroxylase 2 (PHD2), whereas ERβ activation increased PHD2 and decreased both HIF-1α and HIF-2α, suggesting that ERβ regulates the PHD2/HIF-1α/HIF-2α axis during hypoxia. Whereas hypoxic wild-type or ERα knockout mice treated with E2 demonstrated less pulmonary vascular remodeling and decreased HIF-1α after hypoxia compared with untreated hypoxic mice, ERβ knockout mice exhibited increased HIF-2α and an attenuated response to E2 during hypoxia. Taken together, our results demonstrate a novel and potentially therapeutically targetable mechanism whereby hypoxia, via HIF-1α, increases ERβ expression and the E2-ERβ axis targets PHD2, HIF-1α, and HIF-2α to attenuate HPH development.

Indexed as

Up-RegulationAnimalsBasic Helix-Loop-Helix ProteinsCell HypoxiaCells, CulturedEndothelial CellsEndothelial PAS Domain-Containing Protein 1EstradiolEstrogen Receptor alphaEstrogen Receptor betaHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitHypoxia-Inducible Factor-Proline DioxygenasesLungMale2,3-bis(4-hydroxyphenyl)-propionitrileBasic Helix-Loop-Helix ProteinsEgln1 protein, ratEndothelial PAS Domain-Containing Protein 1EstradiolEstrogen Receptor alphaEstrogen Receptor betaHypoxia-Inducible Factor 1, alpha SubunitHypoxia-Inducible Factor-Proline DioxygenasesNitrilesProcollagen-Proline DioxygenasePropionates17β-estradiolhypoxia-inducible factor 1αhypoxia-inducible factor 2αprolyl hydroxylase 2pulmonary hypertension

Identifiers

PMID29394091
PMCPMC6039879
OpenAlexW2792424835

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.