Evidence map›Paper›PMID 32548640›Full record

ArticleBlood2020

Heme induces rapid endothelial barrier dysfunction via the MKK3/p38MAPK axis.

Joel James, Anup Srivastava, Mathews Valuparampil Varghese, Cody A Eccles, Marina Zemskova, Olga Rafikova, Ruslan Rafikov

Open access · bronzeAbstract read
In one paragraph

Article in Blood, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
1.7field-weighted citation impact, top 15% 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

26 citing papers in PubMed, 33 citations in OpenAlex.

  1. Trial
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  8. Review
  9. Circulating free heme induces cytokine storm and pulmonary hypertension through the MKK3/p38 axis.American journal of physiology. Lung cellular and molecular physiology · 2024
    Article
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  13. Review
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  17. Cortactin loss protects against hemin-induced acute lung injury in sickle cell disease.American journal of physiology. Lung cellular and molecular physiology · 2022
    Article
  18. Article
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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.

Joel JamesDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Anup SrivastavaDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Mathews Valuparampil VargheseDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Cody A EcclesDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Marina ZemskovaDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Olga RafikovaDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
Ruslan RafikovDivision of Endocrinology, Department of Medicine, College of Medicine, University of Arizona, Tucson, AZ.
University of Arizona · US

Funding

Anaplerotic reprogramming of endothelial cells in pulmonary hypertension.R01HL132918 · NHLBI · UNIVERSITY OF ARIZONA · PI RAFIKOV, RUSLAN · 2016 to 2025
$4.5M
Hemolysis and Free Heme Signaling in Pulmonary HypertensionR01HL151447 · NHLBI · UNIVERSITY OF ARIZONA · PI Ruslan Rafikov · 2020 to 2026
$4.3M
HMGBG1 and Gender Difference in Pulmonary Arterial HypertensionR01HL133085 · NHLBI · UNIVERSITY OF ARIZONA · PI RAFIKOVA, OLGA · 2016 to 2020
$1.9M
NHLBI NIH HHS R01 HL132918NHLBI NIH HHS R01 HL133085NHLBI NIH HHS R01 HL151447
6 · The paper itself

Abstract

Several studies demonstrate that hemolysis and free heme in circulation cause endothelial barrier dysfunction and are associated with severe pathological conditions such as acute respiratory distress syndrome, acute chest syndrome, and sepsis. However, the precise molecular mechanisms involved in the pathology of heme-induced barrier disruption remain to be elucidated. In this study, we investigated the role of free heme in the endothelial barrier integrity and mechanisms of heme-mediated intracellular signaling of human lung microvascular endothelial cells (HLMVECs). Heme, in a dose-dependent manner, induced a rapid drop in the endothelial barrier integrity of HLMVECs. An investigation into barrier proteins revealed that heme primarily affected the tight junction proteins zona occludens-1, claudin-1, and claudin-5, which were significantly reduced after heme exposure. The p38MAPK/HSP27 pathway, involved in the regulation of endothelial cytoskeleton remodeling, was also significantly altered after heme treatment, both in HLMVECs and mice. By using a knockout (KO) mouse for MKK3, a key regulator of the p38MAPK pathway, we showed that this KO effectively decreased heme-induced endothelial barrier dysfunction. Taken together, our results indicate that targeting the p38MAPK pathway may represent a crucial treatment strategy in alleviating hemolytic diseases.

Indexed as

AnimalsAntigens, CDCadherin 5CadherinsCapillary PermeabilityCells, CulturedClaudinsEndothelial CellsHeat-Shock ProteinsHemeHemolysisHSP27 Heat-Shock ProteinsHumansLungMAP Kinase Kinase 3MAP Kinase Signaling SystemAntigens, CDCadherin 5CadherinsClaudinsHeat-Shock ProteinsHemeHSP27 Heat-Shock ProteinsHSPB1 protein, humanHspb2 protein, mouseMAP2K3 protein, humanMap2k3 protein, mouseMAP Kinase Kinase 3Molecular Chaperonesp38 Mitogen-Activated Protein KinasesTJP1 protein, humanZonula Occludens-1 Protein

Identifiers

PMID32548640
PMCPMC7414589
OpenAlexW3034292236

What Socratic 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 Socratic graph.