A NEW ASSAY SYSTEM FOR THE CELL-GROWTH PROMOTING EFFECTS OF INSULIN AND GROWTH-FACTORS

被引:0
|
作者
ZHANG, X [1 ]
XIA, SL [1 ]
TOMOOKA, Y [1 ]
SAKAKURA, T [1 ]
JING, NH [1 ]
机构
[1] ACAD SINICA, SHANGHAI INST BIOCHEM, SHANGHAI 200031, PEOPLES R CHINA
关键词
INSULIN; EPIDERMAL GROWTH FACTOR; INSULIN-LIKE GROWTH FACTOR I; BIOASSAY SYSTEM; SERUM-FREE MEDIUM;
D O I
暂无
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
GR2H6 is a fibroblast-like cell line cloned from a GR mouse strain mammary tumor, which can grow in a chemically defined serum-free medium. In this serum-free medium, we have found that GR2H6 cells require insulin or insulin-like growth factor I (IGF-I) and epidermal growth factor (EGF) and respond Oo these factors in a dose-related manner as measured by the increase of cell number and total DNA. Based on these observations, me have see up a bioassay system for the growth promoting activities of insulin, EGF and IGF-I. Compared with other bioassay systems this system has several advantages, such as higher sensitivity, better reproducibility and feasibility for different factors. It may provide a novel model system to study growth promoting activities of insulin and other growth factors.
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页码:487 / 492
页数:6
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