Ehmann U K, Peterson W D, Misfeldt D S
J Cell Biol. 1984 Mar;98(3):1026-32. doi: 10.1083/jcb.98.3.1026.
Normal mouse mammary epithelial cells from Balb/c mice were successfully cultivated on tissue culture plastic with lethally irradiated LA7 feeder cells. The feeder cells also promoted colony formation from single mouse mammary cells, and the fraction of cells that formed colonies was proportional to the density of feeder cells. The mouse mammary cells could be passaged at least 8-12 times as long as new feeder cells were added at each passage. The cells now in culture have doubled in number at least 30 times, but the in vitro lifespan is not yet known. The cultures of mouse cells maintained by this technique never became overgrown with fibroblasts and numerous domes formed in the cultures.
来自Balb/c小鼠的正常乳腺上皮细胞在经致死剂量照射的LA7饲养细胞存在的情况下,成功地在组织培养塑料板上培养出来。饲养细胞还促进了单个小鼠乳腺细胞的集落形成,并且形成集落的细胞比例与饲养细胞的密度成正比。只要在每次传代时添加新的饲养细胞,小鼠乳腺细胞就可以传代至少8 - 12次。目前培养的细胞数量至少已经翻倍30次,但体外寿命尚不清楚。用这种技术维持的小鼠细胞培养物从未被成纤维细胞过度生长,并且在培养物中形成了许多圆顶状结构。