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Etude ultrastructurale des effets de la neuraminidase sur des processus palatins de rat
Renard, Ariane; Heinen, Ernst; Baeckeland, E.
1981In Bulletin de l'Association des Anatomistes, 65 (190), p. 329-39
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Keywords :
Animals; Epithelium/drug effects; Microscopy, Electron; Microscopy, Electron, Scanning; Neuraminidase/pharmacology; Palate/drug effects/embryology/ultrastructure; Rats; Rats, Inbred Strains
Abstract :
[en] In a previous work, we demonstrated that palatine processes treated with 10 micrograms/ml neuraminidase for 30 minutes at 37 degrees C show a delayed fusion in vitro. In order to investigate the effects of neuraminidase, the treated palatine processes were observed with the aid of transmission and scanning electron microscopy. The effect of neuraminidase is exclusively detectable on superficial flat cells of the palatine processes, especially the cells of the medial edge of the process. The epithelial basal cells remain unchanged. Observed with the S.E.M., the superficial epithelial cells show bubbles, become spherical and detached. To explain these observations, we namely propose the following hypothesis: the action of neuraminidase prevents the fusion of the palatine processes because it denudes basal cells bearing a too immature cell coat for ensuring sufficient adherence between the palatine processes.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Author, co-author :
Renard, Ariane ;  Centre Hospitalier Universitaire de Liège - CHU > HOSPITALISATION - CHIR. ABDOMINALE (SI +4CD)
Heinen, Ernst ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Histologie humaine
Baeckeland, E.
Language :
French
Title :
Etude ultrastructurale des effets de la neuraminidase sur des processus palatins de rat
Alternative titles :
[en] Ultrastructural study of the effects of neuraminidase on the palatine process of the rat
Publication date :
1981
Journal title :
Bulletin de l'Association des Anatomistes
ISSN :
0376-6160
Publisher :
Association des Anatomistes, Nancy, France
Volume :
65
Issue :
190
Pages :
329-39
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 September 2009

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