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BTG1 regulates glucocorticoid receptor autoinduction in acute lymphoblastic leukemia

ABSTRACT: RNAi mediated knockdown of BTG1 in the acute lymphoblastic cell line RS4;11 causes this cell line to become resistant to prednisolone treatment when compared to control cells. In this experiment we treated BTG1 knockdown RS4;11 cells and control RS4;11 cells either with prednisolone or a vehicle control and compared the gene expression patterns of these cell lines. 8 samples were analyzed: we treated RS4;11 control or RS4;11 shRNA BTG1 cells with either prednisolone or vehicle control, the experiment was performed in duplicate. Genes with a > 2-fold change in expression after prednisolone treatment when compared to vehicle treatment were selected. Expression changes in BTG1 knockdown cells were compared to those in control vector transduced cells.

ORGANISM(S): Homo sapiens

SUBMITTER: Simon van Reijmersdal 

PROVIDER: E-GEOD-18027 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Resistance to glucocorticoids (GCs) is a major clinical problem in the treatment of acute lymphoblastic leukemia (ALL), but the underlying mechanisms are not well understood. Although mutations in the glucocorticoid receptor (GR) gene can give rise to therapy resistance in vitro, acquired somatic mutations in the GR are rarely encountered in patients. Here we report that the protein encoded by the BTG1 gene, which is frequently deleted in (pediatric) ALL, is a key determinant of GC responsivenes  ...[more]

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