Cited by 95Telomeres, Telomerase, and SenescenceGenetics, Aging, and Longevity in Model OrganismsInflammatory mediators and NSAID effects

COX2 regulates senescence secretome composition and senescence surveillance through PGE2

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Gonçalves, Susana, Yin, Kelvin, Ito, Yoko, Chan, Adelyne, Olan, Ioana, Gough, Sarah, Cassidy, Liam, Serrao, Eva +4 more·2021·Cell Reports

Abstract

Senescent cells trigger their own immune-mediated destruction, termed senescence surveillance. This is dependent on the inflammatory senescence-associated secretory phenotype (SASP), which includes COX2, an enzyme with complex roles in cancer. The role COX2 plays during senescence surveillance is unknown. Here, we show that during RAS-induced senescence (RIS), COX2 is a critical regulator of SASP composition and senescence surveillance in vivo . COX2 regulates the expression of multiple inflammatory SASP components through an autocrine feedback loop involving its downstream product, prostaglandin E2 (PGE 2 ), binding to EP4. During in vivo hepatocyte RIS, Cox2 is critical to tumor suppression, Cxcl1 expression, and immune-mediated senescence surveillance, partially through PGE 2 . Loss of Cox2 in RIS dysregulates the intrahepatic immune microenvironment, with enrichment of immunosuppressive immature myeloid cells and CD4 + regulatory T lymphocytes. Therefore, COX2 and PGE 2 play a critical role in senescence, shaping SASP composition, promoting senescence surveillance and tumor suppression in the earliest stages of tumorigenesis.

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  • These prostaglandins promote senescence and the SASP.

    “These prostaglandins are known to promote senescence and the SASP135–137.”

    From COVID-19 and cellular senescence (2023) · cites this paper as [136]

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Authors
Gonçalves, S., Yin, K., Ito, Y., Chan, A., Olan, I., Gough, S., Cassidy, L., Serrao, E., Smith, S., Young, A., Narita, M., & Hoare, M.
Affiliations
  • University of Cambridge (GB)
  • Tokyo Institute of Technology (JP)
Corresponding author
Hoare, Matthew
Venue
Cell Reports
Publisher
Elsevier BV
Published
2021-03
Volume
34
Issue
11
Pages
108860
ISSN
2211-1247 (ISSN-L)
OpenAlex
W3136839549
Cited by
95
References
48
Citations by year
2026: 16 · 2025: 15 · 2024: 32 · 2023: 11 · 2022: 14 · 2021: 6
FWCI
9.90
Type
journal article
Language
en
Open access
Locations
  • Cell Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Apollo (University of Cambridge) (submittedVersion)
  • Apollo
Funders
  • Medical Research Council (MR/R010013/1)
  • Biotechnology and Biological Sciences Research Council (BB/S013466/1)
  • Cancer Research UK (C52489/A19924)
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 › Pharmacology › Inflammatory mediators and NSAID effects
Keywords
cyclooxygenase-2, senescence-associated secretory phenotype, prostaglandin E2, EP4 receptor, Ras-induced senescence, hepatocyte senescence, tumor suppression, CXCL1, regulatory T cells, myeloid-derived suppressor cells, tumor immune microenvironment, carcinogenesis
MeSH terms
Senescence-Associated Secretory Phenotype, Secretome, Animals, Female, Fibroblasts, Humans, Mice, Inbred C57BL, Dinoprostone, Up-Regulation, Cellular Senescence, Mice, Cyclooxygenase 2, Cyclooxygenase 2 Inhibitors, Receptors, Prostaglandin E, EP4 Subtype, Tumor Microenvironment

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