Evidence map›Paper›PMID 24936153›Full record

ArticleJournal of inflammation (London, England)2014

Early effects of Staphylococcus aureus biofilm secreted products on inflammatory responses of human epithelial keratinocytes.

Amy Tankersley, Mark Barton Frank, Melissa Bebak, Robert Brennan

Open access · goldAbstract read
In one paragraph

Article in Journal of inflammation (London, England), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.5field-weighted citation impact, top 8% 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

20 citing papers in PubMed, 43 citations in OpenAlex.

  1. Article
  2. Review
  3. Investigation ofMicroorganisms · 2024
    Article
  4. Antibiotics (Basel, Switzerland) · 2023
    Review
  5. Review
  6. GMI, an Immunomodulatory Peptide fromInternational journal of molecular sciences · 2021
    Article
  7. Article
  8. The effects ofFEMS microbes · 2021
    Article
  9. AnFrontiers in cellular and infection microbiology · 2021
    Article
  10. Virulence factors and clonal diversity of Staphylococcus aureus in colonization and wound infection with emphasis on diabetic foot infection.European journal of clinical microbiology & infectious diseases : official publication of the European Society of Clinical Microbiology · 2020
    Review
  11. Article
  12. Review
  13. Review
  14. Review
  15. Article
  16. Staphylococcal Biofilms in Atopic Dermatitis.Current allergy and asthma reports · 2017
    Review
  17. Article
  18. Review
  19. Article
  20. Article
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

4 authors at 2 institutions in 1 country.

Amy TankersleyBiology Department, University of Central Oklahoma, 100 North University Drive, Edmond, Oklahoma 73034, USA.
Mark Barton FrankMicroarray Research Facility, Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA.
Melissa BebakMicroarray Research Facility, Arthritis and Clinical Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma, USA.
Robert BrennanBiology Department, University of Central Oklahoma, 100 North University Drive, Edmond, Oklahoma 73034, USA.
Oklahoma Medical Research Foundation · USUniversity of Central Oklahoma · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundChronic wounds such as diabetic foot ulcers, pressure ulcers, and venous leg ulcers contribute to a considerable amount of mortality in the U.S. annually. The inability of these wounds to heal has now been associated with the presence of microbial biofilms. The aim of this study was to determine if products secreted by S. aureus biofilms play an active role in chronic wounds by promoting inflammation, which is a hallmark of chronic wounds.

methodsIn vitro experiments were conducted to examine changes in gene expression profiles and inflammatory response of human epithelial keratinocytes (HEKa) exposed to products secreted by S. aureus grown in biofilms or products secreted by S. aureus grown planktonically.

resultsAfter only two hours of exposure, gene expression microarray data showed marked differences in inflammatory, apoptotic, and nitric oxide responses between HEKa cells exposed to S. aureus biofilm conditioned media (BCM) and HEKa cells exposed to S. aureus planktonic conditioned media (PCM). As early as 4 hours post exposure, ELISA results showed significant increases in IL-6, IL-8, TNFα, and CXCL2 production by HEKa cells exposed to BCM compared to HEKa cells exposed to PCM or controls. Nitric oxide assay data also showed significant increases in nitric oxide production by HEKa cells treated with BCM compared to HEKa cells treated with PCM, or controls.

conclusionsTaken together, these results support and extend previous findings that indicate products secreted by S. aureus biofilms directly contribute to the chronic inflammation associated with chronic wounds.

Indexed as

BiofilmsGene expression microarrayInflammationKeratinocytesNitric oxideStaphylococcus aureus

Identifiers

PMID24936153
PMCPMC4059087
OpenAlexW2119447287

What OpenQuestion holds

Textmetadata
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.