Cited by 515Skin and Cellular Biology ResearchCell death mechanisms and regulationGenetic and rare skin diseases.

Cell death by cornification

Open access
Eckhart, Leopold, Lippens, Saskia, Tschachler, Erwin, Declercq, Wim·2013·Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

Abstract

Epidermal keratinocytes undergo a unique form of terminal differentiation and programmed cell death known as cornification. Cornification leads to the formation of the outermost skin barrier, i.e. the cornified layer, as well as to the formation of hair and nails. Different genes are expressed in coordinated waves to provide the structural and regulatory components of cornification. Differentiation-associated keratin intermediate filaments form a complex scaffold accumulating in the cytoplasm and, upon removal of cell organelles, fill the entire cell interior mainly to provide mechanical strength. In addition, a defined set of proteins is cross-linked by transglutamination in the cell periphery to form the so-called cornified envelope. Extracellular modifications include degradation of the tight linkages between corneocytes by excreted proteases, which allows corneocyte shedding by desquamation, and stacking and modification of the excreted lipids that fill the intercellular spaces between corneocytes to provide a water-repellant barrier. In hard skin appendages such as hair and nails these tight intercorneocyte connections remain permanent. Various lines of evidence exist for a role of organelle disintegration, proteases, nucleases, and transglutaminases contributing to the actual cell death event. However, many mechanistic aspects of kearatinocyte death during cornification remain elusive. Importantly, it has recently become clear that keratinocytes activate anti-apoptotic and anti-necroptotic pathways to prevent premature cell death during terminal differentiation. This review gives an overview of the current concept of cornification as a mode of programmed cell death and the anti-cell death mechanisms in the epidermis that secure epidermal homeostasis. This article is part of a Special Section entitled: Cell Death Pathways.

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 · 10.1016/j.bbamcr.2013.06.010

Cites

118 of 118 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?

  • Exon 26A is rarely expressed and is detected under pathological conditions affecting keratinocyte differentiation, called parakeratosis, characterized by early cell death with retention of nuclear debris in corneocytes and an increase in keratin.

    “Exon 26A, for example, is rarely expressed and is detected under pathological conditions that affect the process of keratinocyte differentiation, which is called parakeratosis and is characterized by early cell death with retention of nuclear debris in corneocytes and an increase in keratin [62].”

    From Elastin structure and its involvement in skin photoageing (2017) · cites this paper as [62]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    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
Eckhart, L., Lippens, S., Tschachler, E., & Declercq, W.
Affiliations
  • Medical University of Vienna (AT)
  • Vlaams Instituut voor Biotechnologie (BE)
Corresponding author
Declercq, Wim
Venue
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research
Publisher
Elsevier BV
Published
2013-12
Volume
1833
Issue
12
Pages
3471-3480
ISSN
0167-4889 (ISSN-L)
OpenAlex
W2031363300
Cited by
515
References
118
Citations by year
2026: 18 · 2025: 34 · 2024: 60 · 2023: 47 · 2022: 40 · 2021: 54 · 2020: 45 · 2019: 46 · 2018: 40 · 2017: 36 · 2016: 39 · 2015: 35 · 2014: 20 · 2013: 1
FWCI
3.65
Type
journal article
Language
en
Open access
Locations
  • Biochimica et Biophysica Acta (BBA) - Molecular Cell Research (publishedVersion)
  • PubMed (publishedVersion)
  • Ghent University Academic Bibliography (Ghent University) (submittedVersion)
Funders
  • VIB, Ghent University (BELSPO IAP 7/32)
  • Stichting tegen Kanker (2010-162)
  • FWO-Vlaanderen (G.0226.09N, 1.5.169.08, 1.5.058.12N)
  • Methusalem grant (BOF09/01M00709)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Skin and Cellular Biology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and rare skin diseases.
Keywords
keratinization, keratinocyte differentiation, programmed cell death, cornified envelope, keratin intermediate filaments, desquamation, skin barrier, anti-apoptotic pathways, epidermal homeostasis, corneocytes, proteolytic enzymes, nucleases
MeSH terms
Epidermal Cells, Filaggrin Proteins, Animals, Cell Differentiation, Humans, Models, Biological, Keratinocytes, Cell Death

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