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Ancestral Dependence On Breast Stemness And Nucleotide Excision Repair In Breast Cancer Stem Cells In Novel Human Model Systems, Omar Ibrahim
Student Theses, Dissertations and Capstones
Precocious puberty, measured by thelarche or menarche, is a well-established breast cancer risk factor. Using a unique and patented tissue engineering system we established cell lines from 48 primary cultures of normal breast tissue from reduction mammoplasties and used them as an in vitro model of thelarche, quantifying episphere formation and ductal differentiation. Differential ductal formation was observed based on ancestry. In light of African American (AA) precocious thelarche both in vivo and as we observed in vitro, we hypothesized that AA women would exhibit an increased proportion of breast stem cells, with greater potency for differentiation. Five AA cell …