Cited by 34Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsAsthma and respiratory diseases

Eotaxin-1/CCL11 promotes cellular senescence in human-derived fibroblasts through pro-oxidant and pro-inflammatory pathways

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Lavandoski, Patrícia, Pierdoná, Vinícius, Maurmann, Rafael Moura, Grun, Lucas Kich, Guma, Fatima T. C. R., Barbé-Tuana, Florencia María·2023·Frontiers in Immunology

Abstract

Introduction: Eotaxin-1/CCL11 is a pivotal chemokine crucial for eosinophil homing to the lungs of asthmatic patients. Recent studies also suggest that CCL11 is involved in the aging process, as it is upregulated in elderly, and correlated with shorter telomere length in leukocytes from asthmatic children. Despite its potential pro-aging effects, the precise contribution of CCL11 and the underlying mechanisms involved in the promotion of cellular senescence remains unclear. Therefore, the primary goal of this study was to explore the role of CCL11 on senescence development and the signaling pathways activated by this chemokine in lung fibroblasts. Methods: To investigate the targets potentially modulated by CCL11, we performed an in silico analysis using PseudoCell. We validated in vitro the activation of these targets in the human lung fibroblast cell line MRC-5 following rhCCL11 exposure. Finally, we performed differential gene expression analysis in human airway epithelial cells of asthmatic patients to assess CCL11 signaling and activation of additional senescent markers. Results: Our study revealed that eotaxin-1/CCL11 promote reactive oxygen secretion (ROS) production in lung fibroblasts, accompanied by increased activation of the DNA damage response (DDR) and p-TP53 and γH2AX. These modifications were accompanied by cellular senescence promotion and increased secretion of senescence-associated secretory phenotype inflammatory cytokines IL-6 and IL-8. Furthermore, our data show that airway epithelial lung cells from atopic asthmatic patients overexpress CCL11 along with aging markers such as CDKN2A (p16INK4a) and SERPINE1. Discussion: These findings provide new insights into the mechanisms underlying the pro-aging effects of CCL11 in the lungs of asthmatic patients. Understanding the role of CCL11 on senescence development may have important implications for the treatment of age-related lung diseases, such as asthma.

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  1. [29]Pierdoná V Lavandoski P Moura Maurmann R Borges GA Carlos J Mombach M. PseudoCell: A collaborative network for in silico prediction of regulatory pathways. bioRxiv. doi: 10.1101/2023.07.20.549793v2 · DOI

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Authors
Lavandoski, P., Pierdoná, V., Maurmann, R. M., Grun, L. K., Guma, F. T. C. R., & Barbé-Tuana, F. M.
Affiliations
  • Universidade Federal do Rio Grande do Sul (BR)
  • Pontifícia Universidade Católica do Rio Grande do Sul (BR)
Venue
Frontiers in Immunology
Published
2023-10-04
Volume
14
Pages
1243537-1243537
ISSN
1664-3224 (ISSN-L)
OpenAlex
W4387340994
Cited by
34
References
46
Citations by year
2026: 6 · 2025: 17 · 2024: 11
FWCI
6.04
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Immunology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-sa)
Funders
  • Coordenação de Aperfeiçoamento de Pessoal de Nível Superior
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
  • Universidade Federal do Rio Grande do Sul
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
  • Health Sciences › Medicine › Physiology › Asthma and respiratory diseases
Keywords
cellular senescence, chemokines, reactive oxygen species, DNA damage response, TP53, γH2AX, senescence-associated secretory phenotype, interleukin-6, interleukin-8, airway epithelial cells, asthma, aging, lung fibroblasts, p16INK4a, SERPINE1
MeSH terms
Aged, Asthma, Child, Fibroblasts, Humans, Lung, Cellular Senescence, Reactive Oxygen Species, Chemokine CCL11

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