Evidence map›Paper›PMID 33795696›Full record

ArticleNPJ aging and mechanisms of disease2021

Human skin aging is associated with increased expression of the histone variant H2A.J in the epidermis.

Claudia E Rübe, Caroline Bäumert, Nadine Schuler, Anna Isermann, Zoé Schmal, Matthias Glanemann, Carl Mann, Harry Scherthan

Abstract read
In one paragraph

Article in NPJ aging and mechanisms of disease, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.

0numbers the graph read from it
0cells of the map it votes in
46citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

46 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Claudia E RübeSaarland University Hospital, Department of Radiation Oncology, Homburg/Saar, Germany. claudia.ruebe@uks.eu.ORCID http://orcid.org/0000-0003-3882-7903
Caroline BäumertSaarland University Hospital, Department of Radiation Oncology, Homburg/Saar, Germany.
Nadine SchulerSaarland University Hospital, Department of Radiation Oncology, Homburg/Saar, Germany.
Anna IsermannSaarland University Hospital, Department of Radiation Oncology, Homburg/Saar, Germany.ORCID http://orcid.org/0000-0001-9931-8286
Zoé SchmalSaarland University Hospital, Department of Radiation Oncology, Homburg/Saar, Germany.ORCID http://orcid.org/0000-0003-0012-177X
Matthias GlanemannSaarland University Hospital, Department of Visceral Surgery, Homburg/Saar, Germany.
Carl MannUniversité Paris-Saclay, CEA, CNRS, Institute for Integrative Biology of the Cell (I2BC), Gif-sur-Yvette Cedex, France.
Harry ScherthanBundeswehr Inst. of Radiobiology affiliated to the Univ. of Ulm, München, Germany.

Funding

Agence Nationale de la Recherche (French National Research Agency) 17-CE12-0008-02
6 · The paper itself

Abstract

Cellular senescence is an irreversible growth arrest that occurs as a result of damaging stimuli, including DNA damage and/or telomere shortening. Here, we investigate histone variant H2A.J as a new biomarker to detect senescent cells during human skin aging. Skin biopsies from healthy volunteers of different ages (18-90 years) were analyzed for H2A.J expression and other parameters involved in triggering and/or maintaining cellular senescence. In the epidermis, the proportions of H2A.J-expressing keratinocytes increased from ≈20% in young to ≈60% in aged skin. Inverse correlations between Ki67- and H2A.J staining in germinative layers may reflect that H2A.J-expressing cells having lost their capacity to divide. As cellular senescence is triggered by DNA-damage signals, persistent 53BP1-foci, telomere lengths, and telomere-associated damage foci were analyzed in epidermal keratinocytes. Only slight age-related telomere attrition and few persistent nuclear 53BP1-foci, occasionally colocalizing with telomeres, suggest that unprotected telomeres are not a significant cause of senescence during skin aging. Quantification of integrin-α6+ basal cells suggests that the number and function of stem/progenitor cells decreased during aging and their altered proliferation capacities resulted in diminished tissue renewal with epidermal thinning. Collectively, our findings suggest that H2A.J is a sensitive marker of epidermal aging in human skin.

Identifiers

PMID33795696
PMCPMC8016850

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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.