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마우스배아줄기세포의 in vitro 시험계 활용을 위한 신경세포 분화프로토콜의 비교
김해림 ( Hae Rim Kim ),남기환 ( Ki Hoan Nam ),김은경 ( Eun Kyoung Kim ),윤원기 ( Won Ki Yoon ),원영석 ( Young Suk Won ),문옥성 ( Ok Seong Moon ),정의배 ( Eu Bae Joung ),안병우 ( Byeong Woo Ahn ),김형진 ( Hyoung Chin Kim ) 한국동물실험대체법학회 2008 동물실험대체법학회지 Vol.2 No.1
Mouse embryonic stem cells are pluripotent stem cells that can be differentiate into all the cell types derived from three germ layers in vitro. We aimed to confirm the neuronal cell types derived from the embryonic stem cells by two different differentiation protocols, which would guide us which protocol is useful for in vitro neuronal toxicity test. The mouse embryonic stem cells derived from 129 mouse strain, TC-1 cells, were differentiated according to 30-day differentiation protocol or 15-day differentiation protocol. At the end of the differentiation period, neuronal cells (neuron, astrocyte and oligodendrocyte) were identified by immunocytochemistry using marker antibodies. According to the results, the numbers of astrocytes and oligodendrocytes were much higher than that of neurons in 30-day differntiation protocol. However, oligodendrocytes were overwhelming compared to astrocytes and neurons in the 15-day differntiation protocol. These results indicated that the neuronal cell types and the cell numbers derived from the embryonic stem cells should be considered when selecting in vitro neuronal cell toxicity models using embryonic stem.