Evidence map›Paper›PMID 36475790›Full record

ArticleScience advances2022

A myocardial infarct border-zone-on-a-chip demonstrates distinct regulation of cardiac tissue function by an oxygen gradient.

Megan L Rexius-Hall, Natalie N Khalil, Sean S Escopete, Xin Li, Jiayi Hu, Hongyan Yuan, Sarah J Parker, Megan L McCain

Abstract read
In one paragraph

Article in Science advances, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
–field-weighted citation impact
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

27 citing papers in PubMed.

  1. Human cardiovascular organoids: Biomedical applications and ethical challenges.American heart journal plus : cardiology research and practice · 2026
    Review
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  7. In vitro sex-specific function-structure relationship in neonatal rat cardiac monolayers.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  8. Article
  9. Article
  10. Burn Progression in Human Skin-A Review of Current Knowledge and Opportunities for Future Research.Journal of burn care & research : official publication of the American Burn Association · 2025
    Review
  11. Article
  12. Review
  13. Spatial FAP Expression as Detected byMolecular imaging and biology · 2025
    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

8 authors.

Megan L Rexius-HallLaboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA.ORCID 0000-0003-3608-5125
Natalie N KhalilLaboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA.
Sean S EscopeteSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.
Xin LiDepartment of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.ORCID 0000-0002-2115-5031
Jiayi HuDepartment of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.ORCID 0000-0003-4263-9454
Hongyan YuanDepartment of Mechanics and Aerospace Engineering, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.ORCID 0000-0001-8225-0211
Sarah J ParkerSmidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, CA, USA.ORCID 0000-0001-8911-3615
Megan L McCainLaboratory for Living Systems Engineering, Department of Biomedical Engineering, USC Viterbi School of Engineering, University of Southern California, Los Angeles, CA, USA.ORCID 0000-0003-1908-6783

Funding

Engineering a Microphysiological System to Model the Infarct Border Zone and Interrogate Oxygen-Dependent Cell-Cell Communication in the MyocardiumR01HL153286 · NHLBI · UNIVERSITY OF SOUTHERN CALIFORNIA · PI Megan Laura McCain · 2020 to 2026
$3.4M
NHLBI NIH HHS R01 HL153286
6 · The paper itself

Abstract

After a myocardial infarction, the boundary between the injured, hypoxic tissue and the adjacent viable, normoxic tissue, known as the border zone, is characterized by an oxygen gradient. Yet, the impact of an oxygen gradient on cardiac tissue function is poorly understood, largely due to limitations of existing experimental models. Here, we engineered a microphysiological system to controllably expose engineered cardiac tissue to an oxygen gradient that mimics the border zone and measured the effects of the gradient on electromechanical function and the transcriptome. The gradient delayed calcium release, reuptake, and propagation; decreased diastolic and peak systolic stress; and increased expression of inflammatory cascades that are hallmarks of myocardial infarction. These changes were distinct from those observed in tissues exposed to uniform normoxia or hypoxia, demonstrating distinct regulation of cardiac tissue phenotypes by an oxygen gradient. Our border-zone-on-a-chip model advances functional and mechanistic insight into oxygen-dependent cardiac tissue pathophysiology.

Identifiers

PMID36475790
PMCPMC9728975

What Socratic holds

Textmetadata
LicenceCC BY-NC
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.