• Login
    View Item 
    •   Repository Home
    • Journal Articles
    • Department of Medical Sciences
    • View Item
    •   Repository Home
    • Journal Articles
    • Department of Medical Sciences
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Lack of Fetuin-A ( 2-HS-Glycoprotein) Reduces Mammary Tumor Incidence and Prolongs Tumor Latency via the Transforming Growth Factor-Signaling Pathway in a Mouse Model of Breast Cancer

    Thumbnail
    View/Open
    Awadh.pdf (596.8Kb)
    Date
    2015-10-21
    Author
    Awadh Binhazim
    Metadata
    Show full item record
    Abstract
    The present analyses were done to define the role of fetuin-A (Fet) in mammary tumorigenesis using the polyoma middle T antigen (PyMT) transgenic mouse model. We crossed Fet-null mice in the C57BL/6 background with PyMT mice in the same background and after a controlled breeding protocol obtained PyMT/Fet / , PyMT/Fet / , and PyMT/Fet / mice that were placed in control and experimental groups. Whereas the control group (PyMT/Fet / ) formed mammary tumors 90 days after birth, tumor latency was prolonged in the PyMT/Fet and PyMT/Fet mice. The majority of the PyMT/Fet mice were tumor-free at the end of the study, at approximately 40 weeks. The pathology of the mammary tumors in the Fet-null mice showed extensive fibrosis, necrosis, and squamous metaplasia. The preneoplastic mammary tissues of the PyMT/Fet / mice showed intense phopho-Smad2/3 staining relative to control tissues, indicating that transforming growth factor- signaling is enhanced in these tissues in the absence of Fet. Likewise, p19ARF and p53 were highly expressed in tumor tissues of PyMT/Fet mice relative to the controls in the absence of Fet. The phosphatidylinositol 3-kinase/Akt signaling pathway that we previously showed to be activated by Fet, on the other hand, was unaffected by the absence of Fet.
    URI
    http://hdl.handle.net/123456789/5231
    Collections
    • Department of Medical Sciences

    Technical University of Mombasa copyright © 2020  University Library
    Contact Us | Send Feedback
    Maintained by  Systems Librarian
     

     

    Browse

    All of RepositoryCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    Technical University of Mombasa copyright © 2020  University Library
    Contact Us | Send Feedback
    Maintained by  Systems Librarian