Evidence map›Paper›PMID 9423832›Full record

ArticleInfection and immunity1998

Mannose induces the release of cytopathic factors from Acanthamoeba castellanii.

H Leher, R Silvany, H Alizadeh, J Huang, J Y Niederkorn

Open access · bronzeAbstract read
In one paragraph

Article in Infection and immunity, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
2.0field-weighted citation impact, top 14% 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

28 citing papers in PubMed, 96 citations in OpenAlex.

  1. β-1,3-Glucan recognition byApplied and environmental microbiology · 2024
    Article
  2. Proteases of Acanthamoeba.Parasitology research · 2023
    Review
  3. Biological characteristics and pathogenicity ofFrontiers in microbiology · 2023
    Review
  4. Microorganisms · 2022
    Article
  5. Article
  6. The biology of Acanthamoeba keratitis.Experimental eye research · 2021
    Review
  7. Review
  8. Article
  9. 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

5 authors at 1 institution in 1 country.

H LeherDepartment of Ophthalmology, University of Texas Southwestern Medical Center, Dallas 75235-9057, USA.
R Silvany
H Alizadeh
J Huang
J Y Niederkorn
The University of Texas Southwestern Medical Center · US

Funding

BIOLOGY, IMMUNOLOGY &THERAPY OF ACANTHAMOEBA KERATITISR01EY009756 · NEI · UT SOUTHWESTERN MEDICAL CENTER · PI ALIZADEH, HASSAN · 1995 to 2013
$3.9M
NEI NIH HHS EY09756NEI NIH HHS R01 EY009756
6 · The paper itself

Abstract

Acanthamoeba keratitis is a chronic inflammatory disease of the cornea which is highly resistant to many antimicrobial agents. The pathogenic mechanisms of this disease are poorly understood. However, it is believed that the initial phases in the pathogenesis of Acanthamoeba keratitis involve parasite binding and lysis of the corneal epithelium. These processes were examined in vitro, using Acanthamoeba castellanii trophozoites. Parasites readily adhered to Chinese hamster corneal epithelial cells in vitro; however, parasite binding was strongly inhibited by mannose but not by lactose. Although mannose prevented trophozoite binding, it did not affect cytolysis of corneal epithelial cells. Moreover, mannose treatment induced trophozoites to release cytolytic factors that lysed corneal epithelial cells in vitro. These factors were uniquely induced by mannose because supernatants collected from either untreated trophozoites or trophozoites treated with other sugars failed to lyse corneal cells. The soluble factors were size fractionated in centrifugal concentrators and found to be > or = 100 kDa. Treatment of the supernatants with the serine protease inhibitor phenylmethylsulfonyl fluoride inhibited most, but not all, of the cytopathic activity. These data suggest that the binding of Acanthamoeba to mannosylated proteins on the corneal epithelium may exacerbate the pathogenic cascade by initiating the release of cytolytic factors.

Indexed as

AcanthamoebaAcanthamoeba KeratitisAnimalsCells, CulturedCulture Media, ConditionedCytotoxinsEpithelial CellsEpithelium, CornealGalactoseLactoseMannosePhenylmethylsulfonyl FluorideCulture Media, ConditionedCytotoxinsGalactoseLactoseMannosePhenylmethylsulfonyl Fluoride

Identifiers

PMID9423832
PMCPMC107851
OpenAlexW2148790418

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.