Cited by 84Telomeres, Telomerase, and SenescenceSkin Protection and AgingTGF-β signaling in diseases

Recent advances in dermal fibroblast senescence and skin aging: unraveling mechanisms and pioneering therapeutic strategies

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Nan, Li, Guo, Pengchao, Hui, Wang, Xia, Fang, Yi, Chenggang·2025·Frontiers in Pharmacology

Abstract

Aging is a multifactorial process that affects skin integrity through the progressive decline of dermal fibroblast function. Dermal fibroblasts are key regulators of extracellular matrix (ECM) composition, wound healing, and tissue homeostasis. However, their dysfunction contributes to structural deterioration, chronic inflammation, and impaired regenerative capacity. Cellular senescence, a fundamental characteristic of aging, results in the buildup of senescent fibroblasts that release growth factors, matrix-degrading enzymes, and pro-inflammatory cytokines, known as the senescence-associated secretory phenotype (SASP). This study examines the impact of fibroblast senescence on dermal aging, highlighting mechanisms such as DNA damage, mitochondrial dysfunction, oxidative stress, and telomere attrition. The role of SASP-driven ECM degradation, matrix metalloproteinases (MMPs) activation, and fibroblast-keratinocyte communication breakdown are explored, demonstrating their collective contribution to skin aging. Additionally, key signaling pathways, including p16INK4a/RB, p53, NF-κB, mTOR, and TGF-β, are implicated in fibroblast senescence and chronic inflammation. Recent advancements in therapeutic strategies targeting fibroblast aging, such as senolytics, extracellular vesicle-based interventions, and metabolic reprogramming, offer promising avenues for skin rejuvenation. This review delves into the molecular and cellular dynamics of dermal fibroblast aging, emphasizing their relevance for developing novel anti-aging interventions.

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Crossref · 10.3389/fphar.2025.1592596

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  • Chronic exposure to UVB radiation induces inflammation-mediated skin aging by upregulating pro-inflammatory cytokines such as TNF-α and IL-6, which accelerate matrix degradation and impair skin homeostasis.

    “Chronic exposure to UVB radiation induces inflammation-mediated skin aging by upregulating pro-inflammatory cytokines such as TNF-α and IL-6, which accelerate matrix degradation and impair skin homeostasis [33].”

    From Oral Centella asiatica Extract Attenuates UVB-Induced Skin Photoaging via Antioxidant, Anti-Inflammatory, and Extracellular Matrix-Preserving Effects in Hairless Mice (2025) · cites this paper as [33]

    Section 3.4 identifies TNF-α and IL-6 as inflammatory cytokines in aging skin and links senescent-fibroblast secretions to extracellular-matrix degradation and tissue dysfunction. It also reports a pro-inflammatory response in UVB-induced fibroblast models, while section 3.2 links chronic UV exposure to matrix degradation. The copy does not establish the claim’s specific sequence that chronic UVB exposure upregulates TNF-α and IL-6, which then impair skin homeostasis. (LLM, conf=0.85)

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Authors
Nan, L., Guo, P., Hui, W., Xia, F., & Yi, C.
Affiliations
Second Affiliated Hospital of Zhejiang University (CN)
Corresponding author
Yi, Chenggang
Venue
Frontiers in Pharmacology
Published
2025-06-18
Volume
16
Pages
1592596-1592596
ISSN
1663-9812 (ISSN-L)
OpenAlex
W4411394747
Cited by
84
References
172
Citations by year
2026: 68 · 2025: 16
FWCI
10.99
Type
journal article
Language
en
Open access
Locations
  • Frontiers in Pharmacology (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Topics
  • Health Sciences › Medicine › Physiology › Telomeres, Telomerase, and Senescence
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
dermal fibroblasts, cellular senescence, skin aging, senescence-associated secretory phenotype, extracellular matrix degradation, matrix metalloproteinases, chronic inflammation, DNA damage, mitochondrial dysfunction, oxidative stress, telomere shortening, p53, NF-κB, mTOR, TGF-beta, senolytics, extracellular vesicles, metabolic reprogramming, anti-aging therapy

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