期刊
CANCER CELL
卷 12, 期 6, 页码 542-558出版社
CELL PRESS
DOI: 10.1016/j.ccr.2007.11.012
关键词
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资金
- NCI NIH HHS [U01 CA105423, U01 CA105423-04, N01CN43308, U01 CA105423-03, R01-CA-101227, R01 CA101227, N01-CN43308] Funding Source: Medline
To better understand the cellular origin of breast cancer, we developed a mouse model that recapitulates expression of the ETV6-NTRK3 (EN) fusion oncoprotein, the product of the t(12;1 5)(p13;q25) translocation characteristic of human secretory breast carcinoma. Activation of EN expression in mammary tissues by Wap-Cre leads to fully penetrant, multifocal malignant breast cancer with short latency. We provide genetic evidence that, in nulliparous Wap-Cre;EN females, committed alveolar bipotent or CD61* luminal progenitors are targets of tumorigenesis. Furthermore, EN transforms these otherwise transient progenitors through activation of the AP1 complex. Given the increasing relevance of chromosomal translocations in epithelial cancers, such mice serve as a paradigm for the study of their genetic pathogenesis and cellular origins, and generation of preclinical models.
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