Pepsinogen-Like Immunoreactivity in Ascidian Stomach and Intestine : Immunohistochemical and Biochemical Study : Biochemistry

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概要

• 論文の詳細を見る

• The reactivity of epithelial cells of digestive tract of 5 species of ascidians against antisera to an adult chicken pepsinogen (ACPg) and to an embryonic chicken pepsinogen (ECPg) was examined by indirect immunofluorescence. Stomach and intestinal epithelial cells were reactive to anti-ECPg antiserum. The localization of reactive cells in the stomach coincided with that of chief cell population which was alkaline phosphatase-positive. The protease activity of ascidian stomach was so weak that we could not conceive that immunoreactive substances possess peptic activity. From the results, it was suggested that the substances fulfill a function different from that of digestive enzyme, and in the course of evolution to vertebrates, the substances acquired the active site in the molecule and came to work as digestive enzyme.

• 社団法人日本動物学会の論文
• 1989-04-15

著者

• Yasugi S

  Tokyo Metropolitan Univ. Tokyo Jpn

• MIZUNO TAKEO

  Zoological Institute, Faculty of Science, University of Tokyo

• YASUGI SADAO

  Zoological Institute, Faculty of Science, University of Tokyo

• MATSUNAGA TAKASHI

  Zoological Institute, Faculty of Science, University of Tokyo

• Matsunaga T

  Univ. Tokyo Chiba Jpn

• Mizuno Takeo

  Zoological Institute Faculty Of Science University Of Tokyo:misaki Marine Biological Station Faculty

関連論文

• Glandular Epithelium Induced from Urinary Bladder Epithelium of the Adult Rat Does Not Show Full Prostatic Cytodifferentiation : Developmental Biology
• Pepsinogen-Like Immunoreactivity in Ascidian Stomach and Intestine : Immunohistochemical and Biochemical Study : Biochemistry
• Mesenchymal-Epithelial Interactions in the Organogenesis of Digestive Tract

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