Chemistry: molecular biology and microbiology – Animal cell – per se ; composition thereof; process of... – Method of co-culturing cells
Reexamination Certificate
2004-03-31
2010-02-23
Ton, Thaian N (Department: 1632)
Chemistry: molecular biology and microbiology
Animal cell, per se ; composition thereof; process of...
Method of co-culturing cells
C435S325000, C435S366000, C435S383000, C435S384000, C435S392000
Reexamination Certificate
active
07666673
ABSTRACT:
The present invention provides a method of growing spermatogonial stem cells of mammals and the like in vitro, which is characterized in that glial cell-derived neurotrophic factor (GDNF) or an equivalent thereto, and leukemia inhibitory factor (LIF) are contained in a medium (culture broth) for culturing spermatogonial stem cells. According to the method of the present invention, spermatogonial stem cells can be grown in vitro to the extent that enables use thereof for developmental engineering.
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Shinohara Mito
Shinohara Takashi
Kyoto University
Leydig , Voit & Mayer, Ltd.
Ton Thaian N
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