Cited by 550Diabetes Treatment and ManagementCardiovascular Function and Risk FactorsMitochondrial Function and Pathology

Empagliflozin rescues diabetic myocardial microvascular injury via AMPK-mediated inhibition of mitochondrial fission

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Zhou, Hao, Wang, Shuyi, Zhu, Pingjun, Hu, Shunying, Chen, Yundai, Ren, Jun·2018·Redox Biology

Abstract

Impaired cardiac microvascular function contributes to diabetic cardiovascular complications although effective therapy remains elusive. Empagliflozin, a sodium-glucose cotransporter 2 (SGLT2) inhibitor recently approved for treatment of type 2 diabetes, promotes glycosuria excretion and offers cardioprotective actions beyond its glucose-lowering effects. This study was designed to evaluate the effect of empagliflozin on cardiac microvascular injury in diabetes and the underlying mechanism involved with a focus on mitochondria. Our data revealed that empagliflozin improved diabetic myocardial structure and function, preserved cardiac microvascular barrier function and integrity, sustained eNOS phosphorylation and endothelium-dependent relaxation, as well as improved microvessel density and perfusion. Further study suggested that empagliflozin exerted its effects through inhibition of mitochondrial fission in an adenosine monophosphate (AMP)-activated protein kinase (AMPK)-dependent manner. Empagliflozin restored AMP-to-ATP ratio to trigger AMPK activation, suppressed Drp1 S616 phosphorylation, and increased Drp1 S637 phosphorylation, ultimately leading to inhibition of mitochondrial fission. The empagliflozin-induced inhibition of mitochondrial fission preserved cardiac microvascular endothelial cell (CMEC) barrier function through suppressed mitochondrial reactive oxygen species (mtROS) production and subsequently oxidative stress to impede CMEC senescence. Empagliflozin-induced fission loss also favored angiogenesis by promoting CMEC migration through amelioration of F-actin depolymerization. Taken together, these results indicated the therapeutic promises of empagliflozin in the treatment of pathological microvascular changes in diabetes.

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Crossref · 10.1016/j.redox.2017.12.019

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  • Empagliflozin exerted its protective roles via inhibition of AMPK-dependent mitochondrial fission.

    “Empagliflozin exerted its protective roles via inhibition of AMPK-dependent mitochondrial fission [229].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [229]

  • Empagliflozin recovered the AMP-to-ATP ratio that is necessary for triggering AMPK activation.

    “Empagliflozin recovered the AMP-to-ATP ratio that is necessary for triggering AMPK activation [229].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [229]

  • DRP1-S616 phosphorylation was decreased, while DRP1-S637 phosphorylation was increased, ultimately leading to mitochondrial fission.

    “In the meantime, DRP1-S616 phosphorylation was decreased, while DRP1-S637 phosphorylation was increased, ultimately leading to mitochondrial fission [229].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [229]

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Authors
Zhou, H., Wang, S., Zhu, P., Hu, S., Chen, Y., & Ren, J.
Affiliations
  • Chinese PLA General Hospital (CN)
  • University of Wyoming (US)
Corresponding author
  • Zhou, Hao
  • Chen, Yundai
  • Ren, Jun
Venue
Redox Biology
Publisher
Elsevier BV
Published
2018-05
Volume
15
Pages
335-346
ISSN
2213-2317 (ISSN-L)
OpenAlex
W2777514005
Cited by
550
References
63
Citations by year
2026: 34 · 2025: 53 · 2024: 87 · 2023: 71 · 2022: 71 · 2021: 65 · 2020: 63 · 2019: 53 · 2018: 50 · 2013: 1
FWCI
35.91
Type
journal article
Language
en
Update notices
erratum (2024-05-01)
Open access
Locations
  • Redox Biology (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Natural Science Foundation of China (81441008, 81030002, 81102079, 81270186)
Topics
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diabetes Treatment and Management
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
Keywords
empagliflozin, SGLT2 inhibitors, diabetic cardiomyopathy, mitochondrial fission, AMPK, Drp1 phosphorylation, endothelial barrier function, endothelial cell senescence, mitochondrial reactive oxygen species, oxidative stress, angiogenesis, endothelial cell migration, F-actin depolymerization, eNOS phosphorylation, type 2 diabetes
MeSH terms
AMP-Activated Protein Kinase Kinases, Animals, Benzhydryl Compounds, Diabetes Mellitus, Type 2, Glucosides, Heart Injuries, Humans, Mitochondria, Protein Kinases, Endothelial Cells, Mice, Mitochondrial Dynamics

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