Evidence map›Paper›PMID 30439473›Full record

ArticleThe ocular surface2019

A novel murine model for contact lens wear reveals clandestine IL-1R dependent corneal parainflammation and susceptibility to microbial keratitis upon inoculation with Pseudomonas aeruginosa.

Matteo M E Metruccio, Stephanie J Wan, Hart Horneman, Abby R Kroken, Aaron B Sullivan, Tan N Truong, James J Mun, Connie K P Tam, Robin Frith, Laurence Welsh and 4 more

Abstract readVideo-Audio Media
In one paragraph

Article in The ocular surface, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

24 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. ThemBio · 2025
    Article
  6. Article
  7. Article
  8. Contact Lens Wear Alters Transcriptional Responses tobioRxiv : the preprint server for biology · 2024
    Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Microbial Adherence to Contact Lenses andPathogens (Basel, Switzerland) · 2022
    Review
  16. Bacteria and Dry Eye: A Narrative Review.Journal of clinical medicine · 2022
    Review
  17. Article
  18. Review
  19. Review
  20. American Academy of Optometry Microbial Keratitis Think Tank.Optometry and vision science : official publication of the American Academy of Optometry · 2021
    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

14 authors at 2 institutions in 1 country.

Matteo M E MetruccioSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Stephanie J WanGraduate Group in Vision Science, University of California, Berkeley, CA, 94720, USA.
Hart HornemanSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Abby R KrokenSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Aaron B SullivanSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Tan N TruongSchool of Optometry, University of California, Berkeley, CA, 94720, USA; Graduate Group in Vision Science, University of California, Berkeley, CA, 94720, USA.
James J MunSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Connie K P TamSchool of Optometry, University of California, Berkeley, CA, 94720, USA.
Robin FrithCooperVision UK R & D Facility, Chandlers Ford, Eastleigh, Hants, SO534LY, UK.
Laurence WelshCooperVision UK R & D Facility, Chandlers Ford, Eastleigh, Hants, SO534LY, UK.
Melanie D GeorgeCooperVision Inc, Advanced Development Center, Pleasanton, CA, 94588, USA.
Carol A MorrisCooperVision Inc, Advanced Development Center, Pleasanton, CA, 94588, USA.
David J EvansSchool of Optometry, University of California, Berkeley, CA, 94720, USA; College of Pharmacy, Touro University California, Vallejo, CA, 94592, USA.
Suzanne M J FleiszigSchool of Optometry, University of California, Berkeley, CA, 94720, USA; Graduate Group in Vision Science, University of California, Berkeley, CA, 94720, USA; Graduate Groups in Microbiology, Infectious Diseases & Immunity, University of California, Berkeley, CA, 94720, USA. Electronic address: fleiszig@berkeley.edu.
University of California, Berkeley · USBioInVision (United States) · US

Funding

Corneal Infection: Role of Bacterial AdaptationR01EY024060 · NEI · UNIVERSITY OF CALIFORNIA BERKELEY · PI FLEISZIG, SUZANNE MJ · 2014 to 2018
$2.0M
NEI NIH HHS R01 EY024060
6 · The paper itself

Abstract

purposeContact lens wear carries a risk of complications, including corneal infection. Solving these complications has been hindered by limitations of existing animal models. Here, we report development of a new murine model of contact lens wear.

methodsC57BL/6 mice were fitted with custom-made silicone-hydrogel contact lenses with or without prior inoculation with Pseudomonas aeruginosa (PAO1-GFP). Contralateral eyes served as controls. Corneas were monitored for pathology, and examined ex vivo using high-magnification, time-lapse imaging. Fluorescent reporter mice allowed visualization of host cell membranes and immune cells. Lens-colonizing bacteria were detected by viable counts and FISH. Direct-colony PCR was used for bacterial identification.

resultsWithout deliberate inoculation, lens-wearing corneas remained free of visible pathology, and retained a clarity similar to non-lens wearing controls. CD11c-YFP reporter mice revealed altered numbers, and distribution, of CD11c-positive cells in lens-wearing corneas after 24 h. Worn lenses showed bacterial colonization, primarily by known conjunctival or skin commensals. Corneal epithelial cells showed vacuolization during lens wear, and after 5 days, cells with phagocyte morphology appeared in the stroma that actively migrated over resident keratocytes that showed altered morphology. Immunofluorescence confirmed stromal Ly6G-positive cells after 5 days of lens wear, but not in MyD88 or IL-1R gene-knockout mice. P. aeruginosa-contaminated lenses caused infectious pathology in most mice from 1 to 13 days.

conclusionsThis murine model of contact lens wear appears to faithfully mimic events occurring during human lens wear, and could be valuable for experiments, not possible in humans, that help solve the pathogenesis of lens-related complications.

Indexed as

Contact LensesAnimalsColony Count, MicrobialCorneaDisease Models, AnimalEye Infections, BacterialKeratitisMiceMice, Inbred C57BLMice, KnockoutMicroscopy, ConfocalPseudomonas aeruginosaPseudomonas InfectionsReceptors, Interleukin-1 Type ITomography, Optical CoherenceIL1R1 protein, mouseReceptors, Interleukin-1 Type ICD11c-positive cellsIL-1RLy6G-positive cellsMurine contact lensNeutrophilsParainflammationPseudomonas aeruginosa keratitis

Identifiers

PMID30439473
PMCPMC6365008
OpenAlexW2901781343

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.