Cited by 85Skin Protection and AgingMitochondrial Function and Pathologymelanin and skin pigmentation

Partial depletion of mitochondrial DNA from human skin fibroblasts induces a gene expression profile reminiscent of photoaged skin

Open access
Schroeder, Peter, Gremmel, Tobias, Berneburg, Mark, Krutmann, Jean·2008·Journal of Investigative Dermatology

Abstract

In photoaged skin, wrinkles result from an increased degradation and a decreased de novo synthesis of collagen fibers. At the molecular level, photoaged skin is characterized by increased amounts of large-scale deletions of the mitochondrial (mt) genome such as the 4,977 bp common deletion. The common deletion can be generated in dermal fibroblasts through repetitive ultraviolet (UV) A irradiation, and this was found to be associated with an increased expression of the collagen-degrading enzyme matrix metalloproteinase-1 (MMP-1). These studies did not clarify whether increased MMP-1 expression was caused by a disturbance of mtDNA integrity or whether it occurred independently. We have therefore generated a phenocopy of cells bearing large-scale deletions of mtDNA by gradually depleting the mtDNA from unirradiated human skin fibroblasts. Gradual depletion of mtDNA caused a gene expression profile, which was reminiscent of that observed in photoaged skin. Accordingly, in these cells an increased expression of MMP-1 without a concomitant change in tissue inhibitor metalloproteinase-1 as well as a decreased expression of collagen type 1 alpha-1, that is, a gene involved in collagen de novo synthesis, was observed. This altered gene expression resulted from intracellular, mitochondria-derived oxidative stress. Our results support the concept that disruption of mt integrity, for example, by UV-induced mtDNA mutagenesis, is of pathogenetic relevance for photoaging of human skin.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/jid.2008.57

Cites

40 of 40 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Oxidative stress and damage elicited by mtDNA mutations lead to mitochondrial dysfunction and increase the susceptibility of affected skin tissue cells to apoptosis upon UV irradiation.

    “Taken together, the results from the other investigators and our laboratory indicate that oxidative stress and damage elicited by mtDNA mutations not only lead to mitochondrial dysfunction but also increase the susceptibility of affected skin tissue cells to apoptosis upon UV irradiation [54–56].”

    From Molecular Mechanisms of UV-Induced Apoptosis and Its Effects on Skin Residential Cells: The Implication in UV-Based Phototherapy (2013) · cites this paper as [56]

    The Introduction (page unavailable) reports that UVA-induced mtDNA mutations in human dermal fibroblasts were associated with reduced measures of mitochondrial function, and that antioxidants normalized both the mutations and their functional consequences. The Discussion (page unavailable) also reports decreased mitochondrial function after partial mtDNA depletion. Neither passage shows that affected skin cells become more susceptible to apoptosis upon UV irradiation. (LLM, conf=0.87)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Schroeder, P., Gremmel, T., Berneburg, M., & Krutmann, J.
Affiliations
  • Heinrich Heine University Düsseldorf (DE)
  • University of Tübingen (DE)
Corresponding author
Krutmann, Jean
Venue
Journal of Investigative Dermatology
Publisher
Elsevier BV
Published
2008-09
Volume
128
Issue
9
Pages
2297-2303
ISSN
0022-202X (ISSN-L)
OpenAlex
W2035825200
Cited by
85
References
40
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 5 · 2019: 4 · 2018: 3 · 2017: 2 · 2016: 4 · 2015: 6 · 2014: 6 · 2013: 7 · 2012: 6
FWCI
8.58
Type
journal article
Language
en
Open access
Locations
  • Journal of Investigative Dermatology (publishedVersion)
  • PubMed (publishedVersion)
Funders
Deutsche Forschungsgemeinschaft (SFB728, GRK 1033)
Topics
  • Health Sciences › Medicine › Dermatology › Skin Protection and Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › melanin and skin pigmentation
Keywords
mitochondrial DNA depletion, photoaging, dermal fibroblasts, MMP-1, mitochondrial oxidative stress, gene expression profiles, collagen degradation, phenocopy
MeSH terms
Collagen Type I, alpha 1 Chain, Cell Line, DNA Damage, DNA, Mitochondrial, Enzyme Inhibitors, Ethidium, Fibroblasts, Humans, Models, Biological, Skin, Skin Aging, Gene Deletion, Reactive Oxygen Species, Oxidative Stress, Matrix Metalloproteinase 1, Gene Expression Profiling, Collagen Type I

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review