CYTOCHEMISTRY OF CA^<2+>-ATPASE ACTIVITY IN THE RAT SPINAL CORD DURING EMBRYONIC DEVELOPMENT
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概要
- 論文の詳細を見る
Some metabolic activities in the spinal cord of the rat during embryonic development were investigated by using cytochemical techniques for calcium-dependent adenosinc triphosphatase (Ca^<2+>-ATPase) and alkaline phosphatase (AlPase) . Under light microscopy, the roof and floor plates of the primitive spinal cord at embryonic day (E) 12 clearly showed high Ca^<2+>-ATPase activity, whereas the lateral plates, in contrast, had marked AIPase activity. In the later stages of development, the lateral walls also exhibited Ca^<2+>-ATPase activity. Under electron microscopy, reaction products for the Ca^<2+>-ATPase activity in the roof and floor plates were mainly localized in the lateral plasma membranes, including many cytoplasmic processes, of these plate-forming cells. These findings indicate that the roof and floor plate-forming cells are different in enzyme activity from the proliferative cells of the lateral walls during embryonic development. The possible roles of Ca^<2+>-ATPase in the membrane activity of early differentiated neuroepithelial cells during the embryonic development of the spinal cord are discussed.
- 日本組織細胞化学会の論文
著者
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Tanaka O
Institute Of Pharmaceutical Sciences Faculty Of Medicine Hiroshima University
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鎌田 喜一郎
長岡技術科学大学化学系
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Tanaka Osamu
Department Of Anatomy Shimane Medical University
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Yoshioka Takafumi
Department Of Anatomy Shimane Medical University
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Tanaka O
Institute Of Pharmaceutical Sciences Hiroshima University School Of Medicine
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Inomata Kenichirou
Department Of Anatomy School Of Medicine Toho University
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