title: Proliferation of 3T3-L1 preadipocytes in a completely defined serum-free medium.
abstract: We have developed a completely defined serum-free medium that supports the growth of Swiss 3T3-L1 fibroblasts to nearly the same extent as Dulbecco's modified Eagle's medium supplemented with 10% fetal calf serum. With ASF301 medium [former name, RITC 80-7; Yamane et al. Exp. Cell Res. 134, 470 (1981)], most of the 3T3-L1 cells survived for at least 10 days, but did not grow. ASF301 medium contains insulin and mouse-epidermal growth factor as growth factors, which are termed "progression factors". So we examined the effects of "competent factors" on the proliferation of 3T3-L1 preadipocytes. Growth in the medium supplemented with competent factors reached a confluent monolayer in 6-7 days. Furthermore, it was confirmed that 3T3-L1 cells grown in the serum-free medium retained the properties of differentiation into adipocytes. Our serum-free medium should be a useful tool for research on the growth and differentiation of 3T3-L1 preadipocytes.
authors.affiliation: Department of Food Science and Technology, Faculty of Agriculture, Kyoto University, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Kawada
authors.forename: N
authors.initials: N
authors.lastname: Aoki
authors.forename: R
authors.initials: R
authors.lastname: Kawai
authors.forename: E
authors.initials: E
authors.lastname: Sugimoto
mesh_terms: D000273:Adipose Tissue / Q000166:cytology*; D000818:Animals; D002454:Cell Differentiation; D002455:Cell Division; D002460:Cell Line; D002470:Cell Survival; D003470:Culture Media; D004247:DNA / Q000096:biosynthesis; D006133:Growth Substances / Q000502:physiology
chemical_list: D003470:Culture Media; D006133:Growth Substances; D004247:DNA