Cited by 21Renin-Angiotensin System StudiesWound Healing and TreatmentsHair Growth and Disorders

Critical role of the endogenous renin-angiotensin system in maintaining self-renewal and regeneration potential of epidermal stem cells

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Liao, Xuan, Xiao, Jing, Li, Sheng-Hong, Xiao, Li-Ling, Cheng, Biao, Fu, Xiao-Bing, Cui, Taixing, Liu, Hong-Wei·2019·Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease

Abstract

A tightly controlled activity of renin-angiotensin system (RAS) including renin, angiotensin-converting enzymes (ACEs), and angiotensin II (Ang II) receptors is critical not only for maintaining systemic hemodynamics and blood volume but also for controlling cell proliferation, differentiation, and tissue remodeling in target organs. ACE inhibitors or Ang II receptor type 1 (AT1R) blockers are widely used as first line drugs for the treatment of cardiovascular diseases that are caused by chronical activation of RAS. However, about 15% of patients using ACE inhibitors develop side effects in the skin and the underlying mechanisms have been poorly understood or even neglected. Herein we show an endogenous RAS in maintaining self-renewal and regeneration potential of epidermal stem cells (ESCs) thereby contributing to wound healing. Firstly, we found that ESCs may express ACE, and its members in wound edges were positively associated with wound healing in Captopril-treated rats. Secondly, we demonstrated that human ESCs had a functional RAS including ACE1, ACE2, Ang II, AT1R, and AT2R. ACE-Ang II axis maintains human ESC function via activation of both AT1R and AT2R, which are negatively regulated by each other. Ang II-induced activation of extracellular signal-regulated kinase (ERK) and signal transducers and activators of transcription (STAT)1 and STAT3 was mediated by the negative cross-talk between AT1R and AT2R in human ESCs. These results suggest that Ang II is a critical regulator of ESC function and ESC-mediated epidermal regeneration. Inappropriate interruption of Ang II-operated signaling may prejudice ESC function leading to impaired skin wound healing or even disease.

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  1. T. Hikaru, K. Yohtaro, H. Yutaka, K. Shigeo, Effects of angiotensin II recepter sig- naling during skin wound healing, Am. J. Pathol. 165 (2004) 1653-1662, https:// doi.org/10.1016/S0002-9440(10)63422-0. · DOI

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Authors
Liao, X., Xiao, J., Li, S.-H., Xiao, L.-L., Cheng, B., Fu, X.-B., Cui, T., & Liu, H.-W.
Affiliations
  • First Affiliated Hospital of Jinan University (CN)
  • University of South Carolina (US)
Corresponding author
Cui, Taixing
Venue
Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease
Publisher
Elsevier BV
Published
2019-10
Volume
1865
Issue
10
Pages
2647-2656
ISSN
0925-4439 (ISSN-L)
OpenAlex
W2961619793
Cited by
21
References
47
Citations by year
2026: 2 · 2025: 1 · 2024: 5 · 2023: 4 · 2021: 4 · 2020: 5
FWCI
1.63
Type
journal article
Language
en
Open access
Locations
  • Biochimica et Biophysica Acta (BBA) - Molecular Basis of Disease (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Fundamental Research Funds for the Central Universities
  • National Natural Science Foundation of China
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Health Sciences › Medicine › Rehabilitation › Wound Healing and Treatments
  • Health Sciences › Medicine › Urology › Hair Growth and Disorders
Keywords
renin-angiotensin system, epidermal stem cells, epidermal regeneration, wound healing, angiotensin II, angiotensin II type 1 receptor, angiotensin II type 2 receptor, ACE1, ACE2, captopril, ACE inhibitors, ERK signaling, STAT1, STAT3, skin
MeSH terms
Epidermal Cells, Angiotensin-Converting Enzyme 2, Angiotensin II, Angiotensin-Converting Enzyme Inhibitors, Animals, Captopril, Cardiovascular Diseases, Cell Movement, Humans, Peptidyl-Dipeptidase A, Regeneration, Renin-Angiotensin System, Skin, Stem Cells, Wound Healing, Rats, Wistar, Apoptosis, Receptor, Angiotensin, Type 1, Cell Proliferation, STAT1 Transcription Factor, STAT3 Transcription Factor, Rats

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