Expression of Cyclophilin during the Embryonic Development of the Sea Urchin

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概要

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• The spatial and temporal expression pattern of cyclophilin(Cyp)was examined during the embryonic development of the sea urchins Anthocidaris crassispina and Hemicentrotus pulcherrimus using Western blot analysis and indirect immunofluorescence microscopy. In this study, affinity-purified anti-human Cyp A antibody was used as the primary antibody. Western blot analysis revealed that a single 17.5 kDa immunoreactive band of Cyp was present in unfertilized eggs, in embryos during several stages of development, and in ovaries and testes of adult sea urchins. Cyp was also recognized in unfertilized eggs and embryonic sea urchin cells by indirect immunofluorescence microscopy, but its concentrations within the embryonic tissues varied significantly during embryogenesis. Expression of Cyp during the cleavage stage was thought to be attributable to maternal Cyp products, with zygotic expression appearing after gastrulation. Cyp expression appears to increase depending on the Cyp concentration in the vegetal and apical plates and primary mesenchyme cells in mesenchyme blastulae, and in the oral ectodermal ridge, gut and skeletogenetic mesenchyme cells in pluteus larvae. These results suggest that widespread embryonic distribution and an increased Cyp content occur during the gastrulation in sea urchin development.

• 社団法人日本動物学会の論文

著者

• Ohta Kazumasa

  Department Of Biochemistry Tokyo Dental College

• Ohta Kazumasa

  Department Of Biology Faculty Of Science Toho University : Department Of Biochemistry Tokyo Dental C

• Nakazawa Tohru

  Biological Laboratory The University Of The Air

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