Filaments in the Cells of Frog Taste Organ : Cell Biology
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概要
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The filaments in the cells of frog taste organ were investigated by conventional electron microscopy, fluorescent microscopy using phalloidin, and immunohistochemistry using anti-keratin, anti-NSE and anti-S-100 protein antibodies. The apical cytoplasm of taste and supporting cells contained thin and straight filaments (6nm in diamter) which were composed of f-actin, as detected by fluorecein labeled phalloidin binding. Other regions of taste and supporting cells contained numerous bundles of filaments (10nm in diameter) extending from desmosomes. The 10nm filaments were also observed in the basal cells. The present immunohistochemical study using antikeratin antibodies verified that these 10nm filaments were composed of karatin protein. Polyclonal and KL-1 monoclonal antibodies against keratin reacted with the taste and basal cells, and EAB 902 reacted with the taste and supporting cells. These antibodies also reacted with the ciliated and epithelial cells surrounding the taste organ. PKK-1 antikeratin antibody reacted with the ciliated and epithelial cells, but did not react with the taste organ. Moreover, anti-NSE and anti-S-100 protein antisera reacted with the basal cells in the taste organ. We concluded that all types of cells in the frog taste organ, including basal cells, might originate from the epithelial cells rather than the nerual crest cells, because of the presence of keratin protein. It also appeared that keratin subtypes differed between taste organ cells and surrounding epithelial cells, and among each type of cell in the taste organ.
- 社団法人日本動物学会の論文
著者
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TAKEDA Masako
Department of Human Nutrition, School of Life Studies, Sugiyama Jogakuen University
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SUZUKI Yuko
Department of Dermatology, Asahikawa Medical College
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Takeda Masako
Department Of Human Nutrition School Of Life Studies Sugiyama Jogakuen University
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Takeda Masako
Department Of Oral Anatomy Higashi-nippon-gekuen University School Of Dentistry
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Suzuki Y
National Inst. Sericultural And Entomological Sci. Ibaraki Jpn
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Suzuki Yuko
Department Of Chemical And Biological Sciences Faculty Of Science Japan Women's University
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