The effects of diffusates from the spores of Aspergillus fumigatus and A. terreus on human neutrophils, Naegleria gruberi and Acanthamoeba castellanii.
Med Mycol
; 38(2): 133-41, 2000 Apr.
Article
in En
| MEDLINE
| ID: mdl-10817230
ABSTRACT
Diffusates from dormant spores of Aspergillus fumigatus are inhibitory to certain functions of immune phagocytic cells and soil protozoa. An assay of human neutrophil phagocytosis and an in vitro method of measuring inhibition of the growth of free living amoebae are described. The anti-phagocytic and anti-amoebal effects of diffusates from clinical and environmental isolates of A. fumigatus and of A. terreus were measured using these methods. Spore diffusates from all isolates of A. fumigatus and A. terreus tested significantly inhibited neutrophil phagocytosis. Spore diffusates from A. fumigatus, but not A. terreus, significantly inhibited the growth of Naegleria gruberi. Spore diffusate from A. fumigatus did not inhibit the growth of Acanthamoeba castellanii. The relevance of these findings to the pathogenicity of A. fumigatus and A. terreus is discussed.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Aspergillus
/
Acanthamoeba
/
Naegleria
/
Mycotoxins
/
Neutrophils
Limits:
Animals
/
Humans
Language:
En
Journal:
Med Mycol
Journal subject:
MEDICINA VETERINARIA
/
MICROBIOLOGIA
Year:
2000
Document type:
Article
Affiliation country:
United kingdom