ArticleMatrix biology plus2020
Alterations in extracellular matrix composition during aging and photoaging of the skin.
Article in Matrix biology plus, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 84 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
84 citing papers in PubMed, 164 citations in OpenAlex.
- Dermal fibroblasts cultured from aged human skin display a pro-inflammatory phenotype.Journal of cell communication and signaling · 2026Article
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- Genome-wide pQTL mapping in human skin identifies specific genetic regulators and mechanistic links to skin disorders.Nature communications · 2026Article
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- From ECM Aging to Mechanobiological Restoration: Injectable Fillers and Dermal Fibroblast Mechanotransduction-A Narrative Review.Gels (Basel, Switzerland) · 2026Review
- Skin aging: mechanisms, evaluation, and rejuvenation.The EMBO journal · 2026Review
- Vitamin D receptor signaling in inflammatory senescence-associated skin aging: Mechanisms and therapeutic potentials.Journal of cell communication and signaling · 2026Article
- Collagen gene expression is linked to aging and lifespan extension inMatrix biology plus · 2026Article
- Regenerative Approaches to Enhance the Skin Microenvironment and Boost Aesthetic Efficacy: A Narrative Review.International journal of molecular sciences · 2026Review
- Ageing was never a singular problem in biology: implications for mechanisms, measurements and interventions.Biogerontology · 2026Review
- Single-Cell Transcriptomics Reveal Human Skin Aging Pathways.Journal of cosmetic dermatology · 2026Article
- Review
- Sunscreen application substantially mitigates molecular perturbations induced by repetitive UV exposure and maintains healthy skin.Scientific reports · 2026Article
- Immunomodulatory functions of growth differentiation factor 15 in skin aging and inflammatory dermatoses.Frontiers in immunology · 2026Review
- New Proposal in the Approach to Brachial Remodeling: The Melfa-Anastasia Arm Laxity System (MAALS).Aesthetic surgery journal. Open forum · 2026Article
- Anti-Aging Efficacy of Low-Molecular-Weight Polydeoxyribonucleotide Derived fromInternational journal of molecular sciences · 2025Article
- Review
- Unraveling the Matrix: Proteomic Profiling Reveals Stromal ECM Dysregulation in Severe Early-Onset Fetal Growth Restriction.International journal of molecular sciences · 2025Article
- Nano-Encapsulated Spicule System Enhances Delivery of Wharton's Jelly MSC Secretome and Promotes Skin Rejuvenation: Preclinical and Clinical Evaluation.International journal of molecular sciences · 2025Article
- Light and metabolism: label-free optical imaging of metabolic activities in biological systems [Invited].Biomedical optics express · 2025Review
24 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Human skin is composed of the cell-rich epidermis, the extracellular matrix (ECM) rich dermis, and the hypodermis. Within the dermis, a dense network of ECM proteins provides structural support to the skin and regulates a wide variety of signaling pathways which govern cell proliferation and other critical processes. Both intrinsic aging, which occurs steadily over time, and extrinsic aging (photoaging), which occurs as a result of external insults such as solar radiation, cause alterations to the dermal ECM. In this study, we utilized both quantitative and global proteomics, alongside single harmonic generation (SHG) and two-photon autofluorescence (TPAF) imaging, to assess changes in dermal composition during intrinsic and extrinsic aging. We find that both intrinsic and extrinsic aging result in significant decreases in ECM-supporting proteoglycans and structural ECM integrity, evidenced by decreasing collagen abundance and increasing fibril fragmentation. Intrinsic aging also produces changes distinct from those produced by photoaging, including reductions in elastic fiber and crosslinking enzyme abundance. In contrast, photoaging is primarily defined by increases in elastic fiber-associated protein and pro-inflammatory proteases. Changes associated with photoaging are evident even in young (mid 20s) sun-exposed forearm skin, indicating that proteomic evidence of photoaging is present decades prior to clinical signs of photoaging. GO term enrichment revealed that both intrinsic aging and photoaging share common features of chronic inflammation. The proteomic data has been deposited to the ProteomeXchange Consortium via the PRIDE partner repository with the data set identifier PXD015982.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.