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Apoptosis

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Notch 1 Mediated Inhibition Of Nur77-Induced Apoptosis: Implications For T-Cell Leukemia, Jonathan George Rud May 2010

Notch 1 Mediated Inhibition Of Nur77-Induced Apoptosis: Implications For T-Cell Leukemia, Jonathan George Rud

Open Access Dissertations

It is widely accepted that activating mutations of genes encoding the Notch family of transmembrane receptors, specifically Notch1, are associated with oncogenic transformation. Previous data from our lab has shown that an active form of Notch1 (NICD) provides protection against apoptosis in D011.10 T cells; and that this effect may be attributed to NICD binding the pro-apoptotic protein Nur77. Nur77 is an immediate early gene that is upregulated during both negative selection of thymocytes and activation-induced apoptosis in D011.10 T cells. Nur77 upregulation is tightly regulated and requires MEF2D, NFAT, and the transcriptional co-activator, p300, to effectively respond ...