Cited by 86Atherosclerosis and Cardiovascular DiseasesAntioxidant Activity and Oxidative StressNeutrophil, Myeloperoxidase and Oxidative Mechanisms

Increased ROS production and DNA damage in monocytes are biomarkers of aging and atherosclerosis

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Jacinto, Thais A., Meireles, Giselle S., Dias, Ananda T., Aires, Rafaela, Porto, Marcella L., Gava, Agata L., Vasquez, Elisardo C., Pereira, Thiago Melo C. +2 more·2018·Biological Research

Abstract

New evidence demonstrates that aging and dyslipidemia are closely associated with oxidative stress, DNA damage and apoptosis in some cells and extravascular tissues. However, in monocytes, which are naturally involved in progression and/or resolution of plaque in atherosclerosis, this concurrence has not yet been fully investigated. In this study, we evaluated the influence of aging and hypercholesterolemia on serum pro-inflammatory cytokines, oxidative stress, DNA damage and apoptosis in monocytes from apolipoprotein E-deficient (apoE −/− ) mice compared with age-matched wild-type C57BL/6 (WT) mice. Experiments were performed in young (2-months) and in old (18-months) male wild-type (WT) and apoE −/− mice. Besides the expected differences in serum lipid profile and plaque formation, we observed that atherosclerotic mice exhibited a significant increase in monocytosis and in serum levels of pro-inflammatory cytokines compared to WT mice. Moreover, it was observed that the overproduction of ROS, led to an increased DNA fragmentation and, consequently, apoptosis in monocytes from normocholesterolemic old mice, which was aggravated in age-matched atherosclerotic mice. In this study, we demonstrate that a pro-inflammatory systemic status is associated with an impairment of functionality of monocytes during aging and that these parameters are fundamental extra-arterial contributors to the aggravation of atherosclerosis. The present data open new avenues for the development of future strategies with the purpose of treating atherosclerosis.

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  1. [59]Woollard KJ Geissmann F Monocytes in atherosclerosis: subsets and functions Nat Rev Cardiol 2010 20065951 PMC2813241
  2. [82]Tabas I Macrophage death and defective inflammation resolution in atherosclerosis Nat Rev Immunol 2010 10 1 36 46 10.1038/nri2675 19960040 PMC2854623 · DOI · Paper page
  3. [89]Tacke F Alvarez D Kaplan TJ Jakubzick C Spanbroek R Llodra J Garin A Liu J Mack M van Rooijen N Lira SA Habenicht AJ Randolph GJ Monocyte subsets differentially employ CCR2, CCR5, and CX3CR1 to accumulate within atherosclerotic plaques J Clin Invest 2007 17200718 PMC1716202

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Authors
Jacinto, T. A., Meireles, G. S., Dias, A. T., Aires, R., Porto, M. L., Gava, A. L., Vasquez, E. C., Pereira, T. M. C., Campagnaro, B. P., & Meyrelles, S. S.
Affiliations
  • Universidade Federal do Espírito Santo (BR)
  • Universidade Vila Velha (BR)
  • Instituto Federal do Espírito Santo (BR)
Corresponding author
Campagnaro, Bianca P.
Venue
Biological Research
Published
2018-09-05
Volume
51
Issue
1
Pages
33-33
ISSN
  • 0716-9760 (ISSN-L)
  • 0717-6287
OpenAlex
W2891747209
Cited by
86
References
90
Citations by year
2026: 2 · 2025: 10 · 2024: 15 · 2023: 8 · 2022: 10 · 2021: 19 · 2020: 13 · 2019: 9
FWCI
4.40
Type
journal article
Language
en
Open access
Locations
  • Biological Research (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, cc-by-nc)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
Conselho Nacional de Desenvolvimento Científico e Tecnológico (307584/2015-1, 303001/2015-1, 445080/2014-0, 445736/2014-3)
Topics
  • Life Sciences › Immunology and Microbiology › Immunology › Atherosclerosis and Cardiovascular Diseases
  • Health Sciences › Medicine › Biochemistry › Antioxidant Activity and Oxidative Stress
  • Life Sciences › Immunology and Microbiology › Immunology › Neutrophil, Myeloperoxidase and Oxidative Mechanisms
Keywords
aging, atherosclerosis, monocytes, reactive oxygen species, oxidative stress, DNA damage, apoptosis, hypercholesterolemia, inflammatory cytokines, monocytosis, ApoE-deficient mice, dyslipidemia, biomarkers
MeSH terms
Aging, Animals, Disease Models, Animal, DNA Damage, Hyperlipidemias, Male, Mice, Inbred C57BL, Monocytes, Biomarkers, Apoptosis, Reactive Oxygen Species, Oxidative Stress, Atherosclerosis, Mice, Plaque, Atherosclerotic

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