Cited by 247Kruppel-like factors researchAngiogenesis and VEGF in CancerBarrier Structure and Function Studies

KLF2 and KLF4 control endothelial identity and vascular integrity

Open access
Sangwung, Panjamaporn, Zhou, Guangjin, Nayak, Lalitha, Chan, E. Ricky, Kumar, Sandeep, Kang, Dong-Won, Zhang, Rongli, Liao, Xudong +10 more·2017·JCI Insight

Abstract

Maintenance of vascular integrity in the adult animal is needed for survival, and it is critically dependent on the endothelial lining, which controls barrier function, blood fluidity, and flow dynamics. However, nodal regulators that coordinate endothelial identity and function in the adult animal remain poorly characterized. Here, we show that endothelial KLF2 and KLF4 control a large segment of the endothelial transcriptome, thereby affecting virtually all key endothelial functions. Inducible endothelial-specific deletion of Klf2 and/or Klf4 reveals that a single allele of either gene is sufficient for survival, but absence of both (EC-DKO) results in acute death from myocardial infarction, heart failure, and stroke. EC-DKO animals exhibit profound compromise in vascular integrity and profound dysregulation of the coagulation system. Collectively, these studies establish an absolute requirement for KLF2/4 for maintenance of endothelial and vascular integrity in the adult animal.

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Integrity signals

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Crossref · 10.1172/jci.insight.91700

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  • Cells fated for the endothelial terminal state diverge at E10.5 activating regulators of angiogenesis, such as Tbx1 and Foxc2, as well as genes associated with blood flow-associated shear stress, including Klf2 and Klf4.

    “Cells fated for the endothelial terminal state diverge at E10.5 activating regulators of angiogenesis, such as Tbx1 and Foxc2, as well as genes associated with blood flow-associated shear stress, including Klf2 and Klf4”

    From Single-Cell Transcriptomics Reveals Early Emergence of Liver Parenchymal and Non-parenchymal Cell Lineages (2020) · cites this paper as Sangwung et al., 2017

    The Introduction (page unavailable) says KLF2 and KLF4 are enriched in endothelium and regulated by flow, supporting their association with blood-flow responses. It does not establish that endothelial-fated cells diverge at E10.5 or activate Klf2 and Klf4 at that stage, and it does not address Tbx1 or Foxc2. (LLM, conf=0.88)

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  • The endothelial cluster is enriched for mechanosensitive ion channels and transcription factors associated with flow-induced shear stress and angiogenesis, such as Piezo1/2, Klf2/4, Foxc2, and Tbx1.

    “the endothelial cluster is enriched for mechanosensitive ion channels and transcription factors associated with flow-induced shear stress and angiogenesis, such as Piezo1/2, Klf2/4, Foxc2, and Tbx1”

    From Single-Cell Transcriptomics Reveals Early Emergence of Liver Parenchymal and Non-parenchymal Cell Lineages (2020) · cites this paper as Sangwung et al., 2017

    The Introduction (page not specified) says KLF2 and KLF4 are enriched in the endothelium and regulated by flow. The paper does not support the citing sentence’s claims about Piezo1/2, Foxc2, Tbx1, or enrichment of those genes in the citing study’s endothelial cluster. (LLM, conf=0.87)

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Authors
Sangwung, P., Zhou, G., Nayak, L., Chan, E. R., Kumar, S., Kang, D.-W., Zhang, R., Liao, X., Lu, Y., Sugi, K., Fujioka, H., Shi, H., Lapping, S. D., Ghosh, C. C., Higgins, S. J., Parikh, S. M., Jo, H., & Jain, M. K.
Affiliations
  • Cardiovascular Institute Hospital (JP)
  • University Hospitals of Cleveland (US)
  • Case Western Reserve University (US)
  • Georgia Institute of Technology (US)
  • Beth Israel Deaconess Medical Center (US)
Venue
JCI Insight
Published
2017-02-23
Volume
2
Issue
4
Pages
e91700-e91700
ISSN
2379-3708 (ISSN-L)
OpenAlex
W2588645651
Cited by
247
References
33
Citations by year
2026: 31 · 2025: 24 · 2024: 32 · 2023: 31 · 2022: 29 · 2021: 23 · 2020: 31 · 2019: 20 · 2018: 16 · 2017: 10
FWCI
8.60
Type
journal article
Language
en
Open access
Locations
  • JCI Insight (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association (16POST31200017)
  • Case Western Reserve University
  • School of Medicine, Case Western Reserve University
  • National Institutes of Health (12SDG12070077)
  • National Heart, Lung, and Blood Institute (R01HL125275, R01HL110630, R01HL086548, K08HL121131, R01HL112486, R01HL119195, R01HL093234)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Kruppel-like factors research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Life Sciences › Neuroscience › Neurology › Barrier Structure and Function Studies
Keywords
KLF2, KLF4, vascular integrity, endothelial-specific knockout, endothelial transcriptome, endothelial barrier function, coagulation system, myocardial infarction, heart failure, stroke
MeSH terms
Kruppel-Like Factor 4, Animals, Blood Coagulation, Blood Coagulation Disorders, Capillary Permeability, Endothelium, Vascular, Gene Expression Regulation, Heart Failure, Myocardial Infarction, Mice, Knockout, Stroke, Mice, Kruppel-Like Transcription Factors

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