Evidence map›Paper›PMID 27765722›Full record

ArticleThe Journal of investigative dermatology2017

Staphylococcus aureus Induces Increased Serine Protease Activity in Keratinocytes.

Michael R Williams, Teruaki Nakatsuji, James A Sanford, Alison F Vrbanac, Richard L Gallo

Abstract read
In one paragraph

Article in The Journal of investigative dermatology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 95 papers.

0numbers the graph read from it
0cells of the map it votes in
95citing papers in PubMed
14.8field-weighted citation impact, top 1% 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

95 citing papers in PubMed, 161 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Review
  6. An Ex Vivo 'Microorganisms · 2026
    Article
  7. Review
  8. Review
  9. Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Deletion of the Epidermal ProteaseInternational journal of molecular sciences · 2025
    Article
  16. Article
  17. Host-Microbiome Interactions in Chronic Itch.Journal of clinical medicine · 2025
    Review
  18. Activatable Photosensitizers: From Fundamental Principles to Advanced Designs.Angewandte Chemie (International ed. in English) · 2025
    Review
  19. Review
  20. Review

35 more citing papers are in PubMed but not listed here.

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

5 authors at 1 institution in 1 country.

Michael R WilliamsDepartment of Dermatology, University of California, San Diego, California, USA.
Teruaki NakatsujiDepartment of Dermatology, University of California, San Diego, California, USA.
James A SanfordDepartment of Dermatology, University of California, San Diego, California, USA.
Alison F VrbanacDepartment of Dermatology, University of California, San Diego, California, USA.
Richard L GalloDepartment of Dermatology, University of California, San Diego, California, USA. Electronic address: rgallo@ucsd.edu.
University of California San Diego · US

Funding

Targeted Microbiome Transplant in Atopic DermatitisU19AI117673 · NIAID · NATIONAL JEWISH HEALTH · PI LEUNG, DONALD YM · 2015 to 2019
$30.6M
SEAL (Stopping Atopic dermatitis and ALlergy) Study: Prevent allergy by enhancing the skin barrierU01AI147462 · NIAID · STANFORD UNIVERSITY · PI Mary Johnson, GIDEON LACK · 2020 to 2026
$14.0M
Cathelicidins in Skin ImmunityR01AI052453 · NIAID · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI GALLO, RICHARD L, NIZET, VICTOR · 2002 to 2017
$5.3M
Cathelicidin in Skin ImmunityR37AI052453 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI Richard L Gallo, Victor Nizet · 2019 to 2026
$4.6M
Skin Defense by Dermal AdipocytesR01AR069653 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALLO, RICHARD L · 2016 to 2020
$1.9M
Skin Barrier and the MicrobiomeR01AR064781 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALLO, RICHARD L, HATA, TISSA R · 2014 to 2018
$1.8M
Skin barrier function and the microbiomeR01AI116576 · NIAID · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALLO, RICHARD L, NAKATSUJI, TERUAKI · 2015 to 2019
$1.7M
UCSD Dermatologist Investigator Training ProgramT32AR062496 · NIAMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI GALLO, RICHARD L · 2012 to 2016
$982k
NIAID NIH HHS R01 AI052453NIAID NIH HHS R01 AI116576NIAID NIH HHS R37 AI052453NIAID NIH HHS U01 AI147462NIAID NIH HHS U19 AI117673NIAMS NIH HHS R01 AR064781NIAMS NIH HHS R01 AR069653NIAMS NIH HHS T32 AR062496
6 · The paper itself

Abstract

Bacteria that reside on the skin can influence the behavior of the cutaneous immune system, but the mechanisms responsible for these effects are incompletely understood. Colonization of the skin by Staphylococcus aureus (S. aureus) is increased in atopic dermatitis and can result in increased severity of the disease. In this study, we show that S. aureus stimulates human keratinocytes to increase their endogenous protease activity, including specific increases in trypsin activity. This increased protease activity coincided with increased expression of mRNA for kallikreins (KLKs), with KLK6, 13, and 14 showing the greatest induction after exposure to S. aureus. Suppression of mRNA for these KLKs in keratinocytes by targeted small interfering RNA silencing before S. aureus exposure blocked the increase in protease activity. Keratinocytes exposed to S. aureus showed enhanced degradation of desmoglein-1 and filaggrin, whereas small interfering RNA for KLK6, KLK13, and KLK14 partially blocked this degradation. These data illustrate how S. aureus directly influences the skin barrier integrity by stimulating endogenous proteolytic activity and defines a previously unknown mechanism by which S. aureus may influence skin diseases.

Indexed as

AnimalsCells, CulturedDesmoglein 1FemaleFilaggrin ProteinsHumansIntermediate Filament ProteinsKallikreinsKeratinocytesMiceMice, Inbred C57BLSerine ProteasesStaphylococcus aureusDesmoglein 1Filaggrin ProteinsFLG protein, humanIntermediate Filament ProteinsKallikreinsSerine Proteases

Identifiers

PMID27765722
PMCPMC5258850
OpenAlexW2537139861

What OpenQuestion holds

Textmetadata
LicenceTDM
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.