Evidence map›Paper›PMID 23629652›Full record

ArticleThe Journal of biological chemistry2013

Kallikrein-related peptidase 5 functions in proteolytic processing of profilaggrin in cultured human keratinocytes.

Jun-ichi Sakabe, Mami Yamamoto, Satoshi Hirakawa, Akira Motoyama, Isao Ohta, Kazuki Tatsuno, Taisuke Ito, Kenji Kabashima, Toshihiko Hibino, Yoshiki Tokura

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
7.1field-weighted citation impact, top 3% of its field
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

26 citing papers in PubMed, 75 citations in OpenAlex.

  1. Functional properties and skin care effects of sodium trehalose sulfate.Skin research and technology : official journal of International Society for Bioengineering and the Skin (ISBS) [and] International Society for Digital Imaging of Skin (ISDIS) [and] International Society for Skin Imaging (ISSI) · 2024
    Trial
  2. Article
  3. Proton-activated chloride channel PACC1 as acid sensor in epidermal desquamation.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  4. Article
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  9. Frontiers in molecular biosciences · 2023
    Article
  10. Skin barrier dysfunction and filaggrin.Archives of pharmacal research · 2021
    Review
  11. On the surface: Skin microbial exposure contributes to allergic disease.Annals of allergy, asthma & immunology : official publication of the American College of Allergy, Asthma, & Immunology · 2020
    Review
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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

10 authors at 3 institutions in 1 country.

Jun-ichi SakabeDepartment of Dermatology, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu 431-3192, Japan. jsakabe@hama-med.ac.jp
Mami Yamamoto
Satoshi Hirakawa
Akira Motoyama
Isao Ohta
Kazuki Tatsuno
Taisuke Ito
Kenji Kabashima
Toshihiko Hibino
Yoshiki Tokura
Hamamatsu University School of Medicine · JPKyoto University · JPTokyo Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Filaggrin protein is synthesized in the stratum granulosum of the skin and contributes to the formation of the human skin barrier. Profilaggrin is cleaved by proteolytic enzymes and converted to functional filaggrin, but its processing mechanism remains not fully elucidated. Kallikrein-related peptidase 5 (KLK5) is a major serine protease found in the skin, which is secreted from lamellar granules following its expression in the stratum granulosum and activated in the extracellular space of the stratum corneum. Here, we searched for profilaggrin-processing protease(s) by partial purification of epidermal extracts and found KLK5 as a possible candidate. We used high performance liquid chromatography coupled with electrospray tandem mass spectrometry to show that KLK5 cleaves profilaggrin. Furthermore, based on a proximity ligation assay, immunohistochemistry, and immunoelectron microscopy analysis, we reveal that KLK5 and profilaggrin co-localize in the stratum granulosum in human epidermis. KLK5 knockdown in normal cultured human epidermal keratinocytes resulted in higher levels of profilaggrin, indicating that KLK5 potentially functions in profilaggrin cleavage.

Indexed as

ProteolysisAmino Acid SequenceAmino Acid SubstitutionAnimalsCells, CulturedFilaggrin ProteinsGene Knockdown TechniquesHumansIntermediate Filament ProteinsKallikreinsKeratinocytesMiceMice, Inbred C57BLProtein Processing, Post-TranslationalProtein Structure, TertiaryProtein TransportFilaggrin ProteinsFLG protein, humanIntermediate Filament ProteinsKallikreinsKLK5 protein, humanRNA, Small InterferingDifferentiationEpidermisRNA Interference (RNAi)Serine ProteaseSkin

Identifiers

PMID23629652
PMCPMC3682523
OpenAlexW2002791213

What OpenQuestion holds

Textmetadata
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.