Development of Gonadotropes in the Chicken Embryonic Pituitary Gland(Endocrinology)
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概要
- 論文の詳細を見る
Although a number of immunohistochemical studies have been carried out on the differentiation of chicken gonadotropes during embryogenesis, the temporal and spatial properties of appearance of gonadotropes are not clear. In this study, we studied the appearance and morphological characteristics of gonadotropes in the embryonic and adult chicken anterior pituitary glands using RT-PCR, in situ hybridization and immunohistochemistry. For this purpose, we raised specific antisera against chicken follicle-stimulating hormone β-subunit (cFSHβ) and chicken luteinizing hormone β-subunit (cLHβ) based on each putative amino acid sequence. RT-PCR analysis revealed that cFSHβ mRNA was expressed from embryonic day 7 (E7). Chicken FSHβ mRNA-expressing (-ex) and -immunopositive (-ip) cells started to appear in the ventral part of the caudal lobe in the anterior pituitary gland at E8. Chicken LHβ-ip cells were also first observed there at E8, but cLH mRNA expression was confirmed from E4 by RT-PCR analysis. The distribution of these chicken gonadotropin-ex and -ip cells spread from the ventral part to dorsal part in the caudal lobe around E10 and subsequently expanded to the cephalic lobe from E12 to E20. These cells were morphologically classified into two types (round- and club-shaped cells). It was found that the density of gonadotropin-ip cells in the caudal lobe was always higher than that in the cephalic lobe throughout the period of development. To the best of our knowledge, this is the first report focusing on the differentiation of chicken gonadotropes by assessment of both protein and mRNA of chicken gonadotropin.
- 社団法人日本動物学会の論文
- 2004-04-25
著者
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ZHENG Jun
Department of Regulation-Biology, Faculty of Science, Saitama University
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SAKAI Takafumi
Department of Regulation-Biology, Faculty of Science, Saitama University
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Zheng Jun
Area Of Regulatory Biology Division Of Life Science Graduate School Of Science And Engineering Saita
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Zheng Jun
Department Of Regulation-biology Faculty Of Science Saitama University
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IWASAWA Atsushi
Department of Animal Resource Production, United Graduate School of Agricultural Science, Gifu Unive
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INOUE Kinji
Department of Regulation Biology, Faculty of Science, Saitama University
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Zheng Jun
Department Of Computer Science And Technology Harbin Institute Of Technology
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Maseki Yoko
Department of Regulation Biology, Faculty of Science, Saitama University
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Nakamura Kazuaki
Tokyo Metropolitan Institute for Neuroscience
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Inoue Kinji
Department Of Regulation-biology Faculty Of Science Saitama University
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Nakamura Kazuaki
Department of Regulation-Biology, Faculty of Science, Saitama University
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Sakai Takehiko
Institute Of Biological Sciences University Of Tsukuba
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Maseki Yoko
Department Of Regulation Biology Faculty Of Science Saitama University
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Iwasawa Atsushi
Department Of Animal Science And Technology Faculty Of Agriculture Gifu University
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Iwasawa Atsushi
Department Of Animal Resource Production United Graduate School Of Agricultural Science Gifu Univers
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Inoue Kinji
Department Of Cell Biology Faculty Of Science Saitama University
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Nakamura Kenta
Life And Environmental Sciences University Of Tsukuba
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Nakamura K
Life And Environmental Sciences University Of Tsukuba
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Nakamura Kazuaki
Department Of Molecular Neurobiology Tokyo Metropolitan Institute For Neuroscience
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Nakamura Kenta
Institute Of Biological Sciences University Of Tsukuba
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Sakai Takafumi
Department Of Cell Biology Faculty Of Science Saitama University
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Nakamura Kazuaki
Department Of Regulation Biology Faculty Of Science Saitama University
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Sakai Takafumi
Area Of Regulatory Biology Division Of Life Science Graduate School Of Science And Engineering Saita
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SAKAI Takafumi
Department of Applied Microbial Technology, The Kumamoto Institute of Technology
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ZHENG Jun
Department of Computer Science and Engineering, Harbin Institute of Technology (HIT)
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