New mammary epithelial and fibroblastic cell clones in coculture form structures competent to differentiate functionally

Abstract

We have established and characterized a spontaneously immortalized, nontumorigenic mouse mammary cell line, designated IM-2. IM-2 cells synthesize large amounts of the milk protein beta-casein upon addition of lactogenic hormones. The induction of beta-casein occurs rapidly and does not require any exogenous extracellular matrix components. The IM-2 cell… (More)

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