Evidence map›Paper›PMID 21666233›Full record

ArticleInvestigative ophthalmology & visual science2011

VIP and growth factors in the infected cornea.

Xiaoyu Jiang, Sharon A McClellan, Ronald P Barrett, Elizabeth A Berger, Yunfan Zhang, Linda D Hazlett

Open access · bronzeAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 23% 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

25 citing papers in PubMed, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. PMToxicology and applied pharmacology · 2024
    Article
  4. Review
  5. Article
  6. Article
  7. Review
  8. Immunity and pain in the eye: focus on the ocular surface.Clinical and experimental immunology · 2022
    Review
  9. Review
  10. Role of vasoactive intestinal peptide inInternational journal of ophthalmology · 2018
    Article
  11. Article
  12. Article
  13. Review of clinical and basic approaches of fungal keratitis.International journal of ophthalmology · 2016
    Review
  14. Article
  15. Article
  16. HGF signaling impacts severity of Pseudomonas aeruginosa keratitis.Investigative ophthalmology & visual science · 2014
    Article
  17. Host defense at the ocular surface.International reviews of immunology · 2013
    Review
  18. Review
  19. Article
  20. The role of VIP in cornea.Investigative ophthalmology & visual science · 2012
    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

6 authors at 1 institution in 1 country.

Xiaoyu JiangDepartment of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan 48201, USA.
Sharon A McClellan
Ronald P Barrett
Elizabeth A Berger
Yunfan Zhang
Linda D Hazlett
Wayne State University · US

Funding

VISION RESEARCH--COREP30EY004068 · NEI · WAYNE STATE UNIVERSITY · PI LINDA D HAZLETT · 1985 to 2026
$13.2M
ALTERATION WITH AGE OF RESISTANCE TO EYE INFECTIONSR01EY002986 · NEI · WAYNE STATE UNIVERSITY · PI HAZLETT, LINDA D · 1985 to 2013
$6.2M
Role of Toll-Like Receptors in Bacterial KeratitisR01EY016058 · NEI · WAYNE STATE UNIVERSITY · PI HAZLETT, LINDA D · 2005 to 2023
$6.0M
NEI NIH HHS EY016058NEI NIH HHS P30 EY004068NEI NIH HHS P30 EY04068NEI NIH HHS R01 EY002986NEI NIH HHS R01 EY016058NEI NIH HHS R01EY02986
6 · The paper itself

Abstract

purposeVasoactive intestinal peptide (VIP) is an anti-inflammatory neuropeptide that downregulates proinflammatory cytokines and promotes healing in a susceptible model of P. aeruginosa keratitis. Growth factors also play a role in corneal healing and restoration of tissue homeostasis after wounding. However, whether VIP treatment modulates growth factors to promote healing in the infected cornea remains untested and is the purpose of this study.

methodsC57BL/6 (B6) mice were injected with VIP and mRNA and protein levels, and immunostaining for EGF, FGF, HGF, and VEGF-A were done. Exogenous treatment with a mixture of the growth factors also was tested and levels of cytokines, defensins, and bacterial counts were determined.

resultsReal-time RT-PCR, immunostaining, and ELISA data demonstrated that treatment with VIP enhanced levels of EGF, FGF, and HGF during disease, and that VEGF-A, and associated angiogenic molecules also were increased by VIP. Moreover, immunohistochemical studies confirmed that both epithelial and stromal cells participated in growth factor production. Most notably, treatment with a mixture of EGF, FGF, and HGF after disease onset, prevented corneal perforation when compared with controls. This outcome was associated with downregulation of proinflammatory cytokines such as macrophage inflammatory protein-2 (MIP-2), upregulation of anti-inflammatory cytokines such as TGF-β, and antimicrobials β-defensins 2 and 3, as well as decreased plate counts at 1 day postinfection (p.i.) (P = 0.0001).

conclusionsCollectively, the data provide evidence that VIP treatment modulates growth factors, angiogenic molecules, and defensins in the infected cornea and that this in turn promotes healing and restoration of tissue homeostasis.

Indexed as

AnimalsColony Count, MicrobialCorneaCorneal NeovascularizationCorneal PerforationCorneal UlcerCytokinesDefensinsEnzyme-Linked Immunosorbent AssayEye Infections, BacterialFemaleGene ExpressionIntercellular Signaling Peptides and ProteinsMiceMice, Inbred C57BLPseudomonas InfectionsCytokinesDefensinsIntercellular Signaling Peptides and ProteinsRNA, MessengerVascular Endothelial Growth Factor Avascular endothelial growth factor A, mouseVasoactive Intestinal Peptide

Identifiers

PMID21666233
PMCPMC3176011
OpenAlexW1988613579

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.