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- W1898265514 abstract "Tumorigenic potential of glioblastoma multiforme (GBM) cells is, in part, attributable to their undifferentiated (neural stem cell-like) phenotype. Astrocytic differentiation of GBM cells is associated with transcriptional induction of Glial Fibrillary Acidic Protein (GFAP) and repression of Nestin, whereas the reciprocal transcription program operates in undifferentiated GBM cells. The molecular mechanisms underlying the regulation of these transcription programs remain elusive. Here, we show that the transcriptional co-activator p300 was expressed in GBM tumors and cell lines and acted as an activator of the GFAP gene and a repressor of the Nestin gene. On the other hand, Myc (formerly known as c-Myc overrode these p300 functions by repressing the GFAP gene and inducing the Nestin gene in GBM cells. Moreover, RNAi-mediated inhibition of p300 expression significantly enhanced the invasion potential of GBM cells in vitro. Taken together, these data suggest that dedifferentiated/undifferentiated GBM cells are more invasive than differentiated GBM cells. Because invasion is a major cause of GBM morbidity, differentiation therapy may improve the clinical outcome." @default.
- W1898265514 created "2016-06-24" @default.
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- W1898265514 date "2010-08-01" @default.
- W1898265514 modified "2023-09-22" @default.
- W1898265514 title "p300- and Myc-mediated regulation of glioblastoma multiforme cell differentiation." @default.
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- W1898265514 doi "https://doi.org/10.18632/oncotarget.100801" @default.
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- W1898265514 hasPublicationYear "2010" @default.
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