Evidence map›Paper›PMID 41511042›Full record

ArticleThe Journal of cell biology2026

Keratin 15 promotes a progenitor cell state in basal keratinocytes of skin epidermis.

Catherine J Redmond, Sarah N Steiner, Erez Cohen, Craig N Johnson, Nurhan Özlü, Pierre A Coulombe

Abstract read
In one paragraph

Article in The Journal of cell biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors.

Catherine J RedmondDepartment of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA.ORCID 0000-0001-9474-2803
Sarah N SteinerDepartment of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA.ORCID 0000-0003-1269-3900
Erez CohenDepartment of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA.ORCID 0000-0003-2390-3707
Craig N JohnsonDepartment of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA.ORCID 0000-0003-3955-7394
Nurhan ÖzlüDepartment of Molecular Biology and Genetics, Science Faculty, Koç University, Istanbul, Turkey.ORCID 0000-0002-5157-8780
Pierre A CoulombeDepartment of Cell & Developmental Biology, University of Michigan Medical School, Ann Arbor, MI, USA.ORCID 0000-0003-0680-2373

Funding

TRAINING PROGRAM IN CELL AND MOLECULAR DERMATOLOGYT32AR007197 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI JAMES TILFORD ELDER, Sunny Y Wong · 1986 to 2026
$4.2M
Role of keratin intermediate filaments in skin epithelial differentiation.R01AR079418 · NIAMS · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI COULOMBE, PIERRE · 2021 to 2025
$2.1M
Keratin and filament cell-cell junction cooperation in developmental and tumorigenic fate decisionsK00CA274517 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Catherine Julia Redmond · 2025 to 2026
$180k
Keratin-dependent regulation of progenitor keratinocyte identity and commitment to differentiationF99CA274517 · NCI · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI REDMOND, CATHERINE JULIA · 2022 to 2023
$89k
National Psoriasis FoundationNCI NIH HHS F99 CA274517NCI NIH HHS K00 CA274517NIAMS NIH HHS R01 AR079418NIAMS NIH HHS T32 AR007197NIH HHS F31 AR038249NIH HHS F99 CA274517NIH HHS R01 AR079418NIH HHS T32 AR007197
6 · The paper itself

Abstract

The type I intermediate filament proteins keratin 14 (K14) and keratin 15 (K15) are common to all complex epithelia. K14 is highly expressed by progenitor keratinocytes, in which it provides essential mechanical integrity and gates keratinocyte entry into differentiation by sequestering YAP1, a transcriptional effector of Hippo signaling, to the cytoplasm. K15 has long been used as a marker of hair bulge stem cells, though its specific role in skin epithelia is unknown. Here, we show that the lack of two biochemical determinants, a cysteine residue within the stutter motif of the central rod domain and a 14-3-3 binding site in the N-terminal head domain, renders K15 unable to effectively sequester YAP1 in the cytoplasm like K14 does. We combine insight obtained from cell culture and transgenic mouse models with computational analyses of transcriptomics data and propose a model in which a higher K15:K14 ratio promotes a progenitor state and antagonizes differentiation in keratinocytes of the epidermis.

Indexed as

Epidermal CellsEpidermisKeratin-15KeratinocytesStem Cells14-3-3 ProteinsAdaptor Proteins, Signal TransducingAnimalsCell Cycle ProteinsCell DifferentiationHumansKeratin-14MiceMice, TransgenicPhosphoproteinsSignal Transduction14-3-3 ProteinsAdaptor Proteins, Signal TransducingCell Cycle ProteinsKeratin-14Keratin-15Krt14 protein, mouseKrt15 protein, mousePhosphoproteinsYap1 protein, mouseYAP-Signaling Proteins

Identifiers

PMID41511042
PMCPMC12784932

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.