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    •   MOspace Home
    • University of Missouri-Columbia
    • Graduate School - MU Theses and Dissertations (MU)
    • Theses and Dissertations (MU)
    • Dissertations (MU)
    • 2008 Dissertations (MU)
    • 2008 MU dissertations - Freely available online
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    Large scale CpG island methylation profiling of small B cell lymphoma

    Rahmatpanah, Farahnaz B.
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    [PDF] research.pdf (4.017Mb)
    Date
    2008
    Format
    Thesis
    Metadata
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    Abstract
    DNA methylation plays a significant role in cellular differentiation and biologic activity through silencing of gene expression and also appears to be a factor in the progression of different types of cancer, including Small B cell Lymphomas (SBCL). In this work we utilized three different microarray platforms (9K, 12K and 244K) for the genome wide characterization of DNA methylation in Mantle Cell Lymphoma (MCL), Chronic Lymphocytic Leukemia (CLL), and Follicular lymphoma. The DNA methylation analysis revealed differential methylation patterns in SBCLs. Furthermore, the analysis of DNA methylation profiles suggests that the patterns in CLL may not be homogenous. We demonstrated that the heterogeneity in DNA methylation can be explained, at least in a part, by the CD38 expression levels which is a biomarker to predict the prognosis of the disease in CLL patients. We found alterations in DNA methylation of multiple genes, including SFRP2, Groucho/TLEs, DKK1, SOX genes and APC2 that are members of the WNT signaling pathway in CLL patient samples and CLL cell lines. These genes are viewed as WNT antagonists because of their ability to down regulate WNT signaling. Quantitative real time PCR revealed reactivation of these genes in CLL cell lines after treatment with epigenetic modifying drugs which implies the functional impact of DNA methylation and /or histone deacetylase inhibitors on the mRNA expression of these genes.
    URI
    https://hdl.handle.net/10355/6863
    https://doi.org/10.32469/10355/6863
    Degree
    Ph. D.
    Thesis Department
    Veterinary pathobiology area program (MU)
    Rights
    OpenAccess.
    This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
    Collections
    • 2008 MU dissertations - Freely available online
    • Veterinary Pathobiology electronic theses and dissertations (MU)

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