Results 21 to 30 of about 3,715 (174)

Encystment Induces Down-Regulation of an Acetyltransferase-Like Gene in Acanthamoeba castellanii

open access: yesPathogens, 2020
Acanthamoeba castellanii is a ubiquitous free-living amoeba. Pathogenic strains are causative agents of Acanthamoeba keratitis and granulomatous amoebic encephalitis. In response to adverse conditions, A.
Steven Rolland   +7 more
doaj   +1 more source

Growth and Encystation of Acanthamoeba castellanii [PDF]

open access: yesJournal of General Microbiology, 1974
SUMMARY: Complete encystment of Acanthamoeba occurred in peptone-yeast extract-glucose medium supplemented with 50 mM-magnesium chloride. There was an increase in the RNA, protein and DNA contents of the cells which coincided with an increase in the proportion of binucleate amoebae and commitment to encystation, suggesting that encystation could be a ...
A H, Chagla, A J, Griffiths
openaire   +2 more sources

Phagocytosis and Pinocytosis in Acanthamoeba castellanii [PDF]

open access: yesJournal of General Microbiology, 1976
Endocytotic activity of Acanthamoeba trophozoites attenuates once the cells enter stationary phase in liquid culture. Phagocytosis, monitored by the ingestion of polystyrene latex beads, essentially ceases and the uptake of [3H]inulin, known to be mediated by pinocytosis, is reduced by about half.
J A, Chambers, J E, Thompson
openaire   +2 more sources

The cytochromes of Acanthamoeba castellanii [PDF]

open access: yesBiochemical Journal, 1977
1. Low-temperature difference spectra of gradient-purified mitochondria of Acanthamoeba castellanii reveal the presence of cytochromes b-555, b-562 and c-549, with a-type cytochromes having a broad asymmetrical maximum at 602 nm; these components were also observed in specta of whole cells. 2.
S W, Edwards   +3 more
openaire   +2 more sources

Survival of Bordetella bronchiseptica in Acanthamoeba castellanii

open access: yesMicrobiology Spectrum, 2023
The pathogenic bacterium Bordetella bronchiseptica , which causes respiratory diseases in various mammals, exhibits distinct Bvg + and Bvg − phenotypes. The former represents the virulent phase, in which the bacteria express a set of virulence factors, while the role ...
Dendi Krisna Nugraha   +5 more
openaire   +2 more sources

Acanthamoeba castellanii Genotype T4: Inhibition of Proteases Activity and Cytopathic Effect by Bovine Apo-Lactoferrin

open access: yesMicroorganisms, 2023
Acanthamoeba castellanii genotype T4 is a clinically significant free-living amoeba that causes granulomatous amoebic encephalitis and amoebic keratitis in human beings.
Gerardo Ramírez-Rico   +7 more
doaj   +1 more source

RETRACTED ARTICLE: Establishment of an Acanthamoeba keratitis mouse model confirmed by amoebic DNA amplification

open access: yesScientific Reports, 2021
Acanthamoeba castellanii, the causative agent of Acanthamoeba keratitis (AK), occurs mainly in contact lens users with poor eye hygiene. The findings of many in vitro studies of AK, as well as the testing of therapeutic drugs, need validation in in vivo ...
Heekyoung Kang   +12 more
doaj   +1 more source

Chorismate mutase peptide antibody enables specific detection of Acanthamoeba.

open access: yesPLoS ONE, 2021
Accurate and rapid diagnosis of Acanthamoeba keratitis (AK) is difficult. Although the diagnostic procedure for AK has improved, further development and effective diagnostic tool utilization for AK need to continue.
Hae-Ahm Lee   +5 more
doaj   +1 more source

Antiamoeboid activity of squamins C–F, cyclooctapeptides from Annona globifora

open access: yesInternational Journal for Parasitology: Drugs and Drug Resistance, 2021
Free-living amoebae of Acanthamoeba spp. are causative agents of human infections such as granulomatous amoebic encephalitis (GAE) and Acanthamoeba keratitis (AK). The exploration of innovative chemical entities from natural sources that induce intrinsic
Rubén L. Rodríguez-Expósito   +9 more
doaj   +1 more source

Phragmites australis (Cav.) Trin. ex Steud. Extract Induces Apoptosis-like Programmed Cell Death in Acanthamoeba castellanii Trophozoites

open access: yesPlants, 2022
Acanthamoeba keratitis (AK) is an infectious ocular disease which is difficult to diagnose correctly and cure. Development of an effective and safe therapeutic drug for AK is needed.
Hương-Giang Lê   +11 more
doaj   +1 more source

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