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    • Graduate School - MU Theses and Dissertations (MU)
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    • 2006 MU theses - Freely available online
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    Characterization and functional analysis of the P2Y₂R gene promoter

    Jain, Nishant Rajkumar
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    Date
    2006
    Format
    Thesis
    Metadata
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    Abstract
    Extracellular nucleotides can bind to the P2Y₂R and modulate proliferation and migration of smooth muscle cells, which is known to be involved in intimal hyperplasia that accompanies atherosclerosis and post-angioplasty restenosis. Moreover, the P2Y₂R is upregulated in vascular smooth muscle cells and endothelial cells in response to tissue injury. These findings suggest that the P2Y₂R is a potential target for the pharmacological control of progression of atherosclerosis and post-angioplasty restenosis. However, the mechanisms governing P2Y₂R up-regulation remain unknown. In this study, we have cloned a 2071 bp 5'-flanking region of the P2Y₂R gene in a reporter vector and carried out a serial deletion analysis. The deletion of a 175 bp region completely abolished promoter function and results further indicate that the P2Y₂R gene promoter uses an array of positive and negative response elements in the regulation of gene expression. Furthermore, other results show that the cytokine IL-1[beta] may be involved in down-regulation of P2Y₂R activity in human coronary artery endothelial cells. Further studies will potentially lead to the identification of novel pathways involved in the regulation of P2Y₂R gene expression, information that might be useful to suppress neointimal hyperplasia in atherosclerosis and the restenosis of angioplasty.
    URI
    http://hdl.handle.net/10355/4629
    Degree
    M.S.
    Thesis Department
    Biochemistry (Agriculture) (MU)
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    • 2006 MU theses - Freely available online
    • Biochemistry electronic theses and dissertations (MU)
    • Biochemistry electronic theses and dissertations (MU)

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