Cited by 15Erythrocyte Function and PathophysiologyRedox biology and oxidative stressAntioxidant Activity and Oxidative Stress

Angiotensin II-Induced Erythrocyte Senescence Contributes to Oxidative Stress

Huang, Chenglin, Gao, Jing, Wei, Tong, Shen, Weili·2022·Rejuvenation Research

Abstract

Oxidative stress may be an important cause of erythrocyte senescence. Angiotensin II (Ang II) has recently been shown to promote vascular cell senescence. However, its effects on erythrocytes remain unclear. This study aims at investigating the role of Ang II in regulating erythrocyte lifespan through oxidative stress. Experiments were performed in C57/BL6J mice infused with Ang II (1500 ng/kg per minute) or saline for 7 days. After Ang II infusion, we found that Ang II increased erythrocyte number, hemoglobin, and red blood cell distribution width. These differences were accompanied by a decrease in glutathione (GSH) and an increase in malondialdehyde (MDA) concentration. In vitro , after 24 hours of Ang II treatment, erythrocytes showed reduced surface expression of CD47 and increased phosphatidylserine exposure. In parallel, Ang II reduced the levels of antioxidant enzymes, including Cu/ZnSOD, catalase, and peroxidase 2 (PRDX2). These effects were reversed by the addition of the antioxidant N-acetyl-L-cysteine or the Ang II type 1 (AT1) receptor blocker losartan. In addition, Ang II treatment increased pro-inflammatory oxylipin, including hydroxyeicosatetraenoic acids (HETEs) and dihydroxyoctadecenoic acids (DiHOMEs), in the erythrocyte membranes. Collectively, Ang II induced erythrocyte senescence and susceptibility to eryptosis, partially due to enhanced oxidative stress.

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Crossref · 10.1089/rej.2021.0054

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38 of 38 references verified0 citation errors · 0 not checkable

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Authors
Huang, C., Gao, J., Wei, T., & Shen, W.
Affiliations
Shanghai Jiao Tong University (CN)
Corresponding author
Shen, Weili
Venue
Rejuvenation Research
Published
2022-02
Volume
25
Issue
1
Pages
30-38
ISSN
  • 1094-5458 (ISSN-L)
  • 1549-1684
  • 1557-8577
OpenAlex
W4205395647
Cited by
15
References
38
Citations by year
2026: 3 · 2025: 2 · 2024: 5 · 2023: 2 · 2022: 3
FWCI
1.57
Type
journal article
Language
en
Open access
closed
Locations
  • Rejuvenation Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Erythrocyte Function and Pathophysiology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
Keywords
angiotensin II, erythrocyte senescence, oxidative stress, eryptosis, erythrocyte lifespan, CD47, phosphatidylserine exposure, antioxidant enzymes, N-acetylcysteine, losartan, angiotensin II type 1 receptor, oxylipins, hydroxyeicosatetraenoic acids, glutathione, malondialdehyde, erythrocyte membrane
MeSH terms
Angiotensin II, Animals, Erythrocytes, Cellular Senescence, Oxidative Stress, Losartan, Mice

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