Publication:
Alkaline phosphatase, 5'-nucleotidase and magnesium-dependent adenosine triphosphatase activities in the transitional epithelium of the rat urinary bladder

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Alkaline phosphatase 5nucleotidase and magnesiumdependent adenosine triphosphatase activities.pdf(4.13 MB)
Date
1991
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Authors
Zhang, S.X. ; Kobayahsi, T. ; Okada, T. ; García del Saz, E. ; Seguchi, H.
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Publisher
Murcia : F. Hernández
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DOI
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info:eu-repo/semantics/article
Description
Abstract
The cerium-based method was used to demonstrate cytochemically the ultrastructural localization of alkaline phosphatase (ALPase), 5'- nucleotidase (5'-Nase) and magnesium-dependent adenosine triphosphatase (Mg-ATPase) on the transitional epithelium of the rat urinary bladder. The reaction product for ALPase was found on the plasma membrane of al1 epithelial cells, except the luminal surface of superficial cells. The activity of 5'-Nase appeared on the plasma membrane of al1 bladder transitional epithelial cells, including the free surface of superficial cells. The Mg-ATPase reaction product was seen on the plasma membrane of superficial, intermediate and basal cells, but never on the luminal surface of superficial cells and it was only occasionally seen on the basal surface. The possible functions of these phosphatases have been discussed, and it was emphasized that the 5'-Nase activity present on the luminal surface of superficial cells may play a special role in the membrane movement of these cells in the transitional epithelium.
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Transitional epithelium , Cerium
Citation
URI
http://hdl.handle.net/10201/18248
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Histology and histopathology Vol. 6, nº 3 (1991)
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