A method for the multiplication of normal diploid cells from animals is described, comprising cultivating the cells in a culture medium containing an amine derivative or derivatives represented by the general formula: NR1R2R3 (wherein R1, R2 and R3 represents a straigh, branched or cyclic alkyl group or a hydrogen atom, provided that R1, R2 and R3 are not hydrogen atoms at the same time. Addition of these specific amine derivatives permits multiplication of normal diploid cells in a culture medium containing no serum or only a limited concentration of serum. These amine derivatives are inexpensive and can be stored for a long period of time, and their storage and handling are easy. The use of these amine derivatives overcomes various problems encountered in using serum in the multiplication of normal diploid cells according to conventional methods.
本发明描述了一种用于繁殖动物正常二倍体细胞的方法,该方法包括在含有胺衍
生物或由通式表示的衍
生物的
培养基中培养细胞:NR1R2R3(其中 R1、R2 和 R3 代表直链、支链或环状烷基或氢原子,但 R1、R2 和 R3 不能同时为氢原子)。添加这些特定的胺衍
生物可以使正常的二倍体细胞在不含血清或仅含有限浓度血清的
培养基中繁殖。这些胺衍
生物价格低廉,可长期保存,而且易于储存和处理。这些胺衍
生物的使用克服了按照传统方法使用血清繁殖正常二倍体细胞时遇到的各种问题。