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Chinese Journal of Biotechnology ; (12): 751-755, 2007.
Artículo en Chino | WPRIM | ID: wpr-327953

RESUMEN

Male germ stem cells (mGSCs), which is in testis after sex differentiation, derive from primordial germ cells. In this study, bovine mGSCs were isolated from testis of 20 weeks fetuses. Number of CD9 positive cells of the cells through two-steps adhering plates velocity different was 95.8% by flow cytometer. The carina-type cells clones and the plane-type cells clones appeared in co-cultured system. One cells lines had been successively maintained for 4 passages, and the cells clusters showed AKP positive staining. The cells clusters showed nest-shape in third passage showed SSEA1 and Oct-4 positive staining. These cells can also spontaneously differentiate into c-kit positive staining germ cells, and the cells were directional induced to formaactin positive staining cardiac-like cells cluster and NF positive staining neuron-like cells. The conclusion showed that male germ stem cells from 20 weeks bovine fetuses could be in vitro formed like embryonic stem cells.


Asunto(s)
Animales , Bovinos , Masculino , Diferenciación Celular , Fisiología , Células Cultivadas , Células Madre Embrionarias , Biología Celular , Feto , Biología Celular , Células Madre Pluripotentes , Biología Celular , Espermatozoides , Biología Celular
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