Summary
The mammary gland is unique in that most of its development occurs after birth with dramatic changes in proliferation and differentiation taking place during puberty and pregnancy. Different subsets of mammary-specific stem/progenitor cells have been shown to drive the individual stages of mammary gland development, and their regulation requires coordination between localized signals and systemic hormones. That sophisticated integration and control is achieved through the function of the stem cell niche. The goal of this chapter is to review why somatic stem cells are thought to exist in the mouse mammary gland, how they are being isolated and assayed, how their fate is influenced by the surrounding microenvironment, and how aberrant regulation of this process might contribute to breast cancer. If the components of the niche could be defined, each might then be targeted as a method to modify the fate of stem or progenitor cells during normal organ regeneration or repaired after tumorigenesis has been initiated.
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Mack, D.L., Smith, G.H., Booth, B.W. (2009). Mammary Glands, Stem Cells and Breast Cancer. In: Giordano, A., Normanno, N. (eds) Breast Cancer in the Post-Genomic Era. Current Clinical Oncology. Humana Press. https://doi.org/10.1007/978-1-60327-945-1_2
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