Transformed growth phenotype of mouse mammary epithelium in primary culture induced by specific fetal mesenchymes.

Abstract excerpt

When mesenchyme from fetal mammary or salivary gland is implanted into adult mouse mammary gland, adjacent epithelium responds with intense hyperplasia. The hyperplastic cells are more vulnerable than are non-stimulated cells to transformation in vivo by a chemical carcinogen or by mammary tumor virus. This system provides a potentially useful model for determining how stroma contributes to mammary tumorigenesis....

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