Host-parasite interactions in the pathogenesis of experimental renal candidiasis.
Lab Invest
; 49(4): 460-7, 1983 Oct.
Article
en En
| MEDLINE
| ID: mdl-6353061
ABSTRACT
To study the pathogenesis of renal candidiasis, viable Candida albicans blastospores were injected directly into the left renal artery of New Zealand white rabbits. The progression of the disease was followed by light and electron microscopy over a 6-day period. Within 5 minutes after injection of the yeasts, the organisms localized within glomerular and peritubular capillaries of the cortex. Localization of yeasts within the capillaries occurred through adherence, demonstrated by the presence of surface fibrils originating from the yeast cells. Two to 10 hours later, inflammatory nodules comprised of polymorphonuclear leukocytes formed within capillary lumina. Many of the entrapped yeasts remained viable and extended through adjacent endothelium and epithelium by the formation of germ tubes which penetrated between or directly through intact host cells. After 24 hours, numerous hyphal forms were observed within tubules of the cortex, and some necrotic host cells were noted at sites of penetration. Abscesses replaced renal parenchyma in focal areas during subsequent time intervals. These studies indicate that attachment of Candida albicans to endothelium within capillaries of the cortex is a key event in the disease process. Also, growth of germ tubes into renal tubules provides a temporal advantage for amplification of Candida organisms.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Pielonefritis
/
Candidiasis
Tipo de estudio:
Etiology_studies
Límite:
Animals
/
Humans
Idioma:
En
Revista:
Lab Invest
Año:
1983
Tipo del documento:
Article