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Full-Text Articles in Cancer Biology
The Cellular Origin And Molecular Drivers Of Claudin-Low Mammary Cancer, Patrick D. Raedler
The Cellular Origin And Molecular Drivers Of Claudin-Low Mammary Cancer, Patrick D. Raedler
Theses & Dissertations
Breast cancers of the claudin-low subtype make up a substantial portion of triple-negative breast cancers and have stem cell-like and mesenchymal features. Although it has been recognized for some time that this breast cancer subtype is highly aggressive and difficult to treat, the molecular drivers and cellular origin of claudin-low breast cancer have been poorly defined. The lack of suitable in vivo models has prohibited the study of tumor initiation and progression of this subtype. In this work, we report two novel mouse models that, upon expression of oncogenic RAS in the mammary epithelium, develop highly metastatic triple-negative mammary tumors …
The Role Of Yes-Associated Protein 1 In Ovarian Physiology And Pathology, Xiangmin Lv
The Role Of Yes-Associated Protein 1 In Ovarian Physiology And Pathology, Xiangmin Lv
Theses & Dissertations
Ovarian granulosa cells are the major somatic components of the ovarian follicle. Proper proliferation and differentiation of ovarian granulosa cells are essential for successful follicle development. Accumulating evidence indicates that the Hippo-YAP signaling pathway plays critical roles in both development and tumorigenesis of several organs. The present study aims to investigate the role of Yes-associated protein 1 (YAP) in ovarian granulosa cell proliferation, differentiation, and malignant transformation. At first, we found that nuclear YAP (active) was highly expressed in proliferative granulosa cells, whereas cytoplasmic YAP (inactive) was detected mainly in terminally-differentiated luteal cells. Further studies suggested that endogenous YAP activity …