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    • Goldman School of Dental Medicine
    • GSDM: Historical Theses and Dissertations (BU access only)
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    •   OpenBU
    • Goldman School of Dental Medicine
    • GSDM: Historical Theses and Dissertations (BU access only)
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    Does LOXL2 and JNK MAP kinase activation mediate CCN2CTGF-induced collagen accumulation in gingival fibroblasts?

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    Date Issued
    2014
    Author(s)
    Cabrera, Vianca Elize
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    https://hdl.handle.net/2144/31768
    Abstract
    CCN2/CTGF is a member of the CCN family of matricellular proteins, functioning in collaboration with other factors and extracellular matrix components. CCN proteins bind receptors including low-density lipoprotein related proteins and integrins (Heng et al., 2006). Even after all that has been discovered about CCN2/CTGF over the last two decades, not everything is known today, for example the mechanism by which CCN2/CTGF stimulates collagen deposition (Crean et al., 2002). Gingival fibrosis is defined by accumulation of excess gingival tissue and is characterized by excess extracellular matrix accumulation and elevated levels of cytokines in the absence of periodontal bone loss. Drug-induced gingival fibrosis is the adverse effect of three types of medications: 1) calcium channel blockers, 2) immunosuppressive cyclosporine A, and 3) antiseizure drugs. After culturing gingival fibroblasts (GFs), evidence revealed notable levels of CCN2/CTGF up-regulated by TGF-beta1. CCN2/CTGF stimulated collagen deposition but not collagen synthesis; the collagen mRNA was not increased, suggesting the responsibility of posttranslational events for deposition. It is also important to state that lysyl oxidase activity is enhanced by CCN2/CTGF in cultures of GFs (Hong et al., 1999). Another important finding suggests that CCN2/CTGF effects can be regulated by the MAP kinase pathway, which showed ... [TRUNCATED]
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    PLEASE NOTE: This work is protected by copyright. Downloading is restricted to the BU community: please click Download and log in with a valid BU account to access. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.
     
    Thesis (MSD) --Boston University, Henry M. Goldman School of Dental Medicine, 2014 (Department of Molecular and Cell Biology).
     
    Includes bibliography: leaves 60-63.
     
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    This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.
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    • GSDM: Historical Theses and Dissertations (BU access only) [657]


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