Trimetaphosphatase activity in rat incisor odontoblasts during early dentinogenesis.
The ultrastructural localization of trimetaphosphatase activity have been investigated in early stages of dentinogenesis in the rat incisor. Extracellular reactive structures were present in between the odontoblasts during early secretion and absent later on. Tubular lysosomes were observed for the first time in odontoblasts and seemed to be involved with other elements of the lysosomal system in endocytosis of extracellular substances.
Oral Biology Department, Faculty of Oral & Dental Medicine, Cairo University, Egypt.
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Salama
D017766:Acid Anhydride Hydrolases / Q000378:metabolism*; D000818:Animals; D002454:Cell Differentiation; D003810:Dentinogenesis / Q000502:physiology*; D008247:Lysosomes / Q000201:enzymology*; D008854:Microscopy, Electron; D009804:Odontoblasts / Q000201:enzymology / Q000648:ultrastructure*; D051381:Rats; D017207:Rats, Sprague-Dawley
D017766:Acid Anhydride Hydrolases; C022768:trimetaphosphatase