Cited by 540Skin Protection and AgingFacial Rejuvenation and Surgery TechniquesDermatologic Treatments and Research

Looking Older: Fibroblast Collapse and Therapeutic Implications

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Fisher, Gary J., Varani, James, Voorhees, John J.·2008·Archives of Dermatology

Abstract

Skin appearance is a primary indicator of age. During the last decade, substantial progress has been made toward understanding underlying mechanisms of human skin aging. This understanding provides the basis for current use and new development of antiaging treatments. Our objective is to review present state-of-the-art knowledge pertaining to mechanisms involved in skin aging, with specific focus on the dermal collagen matrix. A major feature of aged skin is fragmentation of the dermal collagen matrix. Fragmentation results from actions of specific enzymes (matrix metalloproteinases) and impairs the structural integrity of the dermis. Fibroblasts that produce and organize the collagen matrix cannot attach to fragmented collagen. Loss of attachment prevents fibroblasts from receiving mechanical information from their support, and they collapse. Stretch is critical for normal balanced production of collagen and collagen-degrading enzymes. In aged skin, collapsed fibroblasts produce low levels of collagen and high levels of collagen-degrading enzymes. This imbalance advances the aging process in a self-perpetuating, never-ending deleterious cycle. Clinically proven antiaging treatments such as topical retinoic acid, carbon dioxide laser resurfacing, and intradermal injection of cross-linked hyaluronic acid stimulate production of new, undamaged collagen. Attachment of fibroblasts to this new collagen allows stretch, which in turn balances collagen production and degradation and thereby slows the aging process. Collagen fragmentation is responsible for loss of structural integrity and impairment of fibroblast function in aged human skin. Treatments that stimulate production of new, nonfragmented collagen should provide substantial improvement to the appearance and health of aged skin.

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Crossref · 10.1001/archderm.144.5.666

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  • Skin aging is characterized by impaired wound healing, atrophy, reduced tensile strength and wrinkle formation, marked loss in skin structural integrity and in collagen and elastic fibres, with weakening in the fibre network, due to dysfunctional fibroblasts.

    “Particularly for skin aging, an event characterized by impaired wound healing, atrophy, reduced tensile strength and wrinkle formation, a marked loss in skin structural integrity and in collagen and elastic fibres, with weakening in the fibre network, has been reported, due to dysfunctional fibroblasts [34,35].”

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Research works printed but not linked: 2

  1. [4]Scharffetter-Kochanek K. Skin aging. Clin Exp Dermatol. 2001;26(7):561. doi: 10.1046/j.1365-2230.2001.00906.x. [DOI] [PubMed] [Google Scholar] · DOI
  2. [22]Siegel RC. Lysyl oxidase. Int Rev Connect Tissue Res. 1979;8:73–118. doi: 10.1016/b978-0-12-363708-6.50009-6. [DOI] [PubMed] [Google Scholar] · DOI

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Authors
Fisher, G. J., Varani, J., & Voorhees, J. J.
Affiliations
University of Michigan (US)
Venue
Archives of Dermatology
Published
2008-05-01
Volume
144
Issue
5
Pages
666-72
ISSN
0003-987X (ISSN-L)
OpenAlex
W2155238230
Cited by
540
References
51
Citations by year
2026: 26 · 2025: 39 · 2024: 41 · 2023: 36 · 2022: 21 · 2021: 20 · 2020: 36 · 2019: 31 · 2018: 20 · 2017: 26 · 2016: 38 · 2015: 51 · 2014: 25 · 2013: 25 · 2012: 29
FWCI
26.43
Type
journal article
Language
en
Open access
Locations
  • Archives of Dermatology (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute on Aging (AG025186, R01AG019364, R01AG025186, AG019364)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Health Sciences › Medicine › Dermatology › Facial Rejuvenation and Surgery Techniques
  • Health Sciences › Medicine › Dermatology › Dermatologic Treatments and Research
Keywords
skin aging, collagen fragmentation, matrix metalloproteinases, fibroblast adhesion, collagen degradation, collagen synthesis, topical retinoic acid, carbon dioxide laser resurfacing, cross-linked hyaluronic acid, skin appearance
MeSH terms
Aging, Collagen, Fibroblasts, Humans, Hyaluronic Acid, Stress, Mechanical, Sunlight, Skin Aging, Collagen Type I

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