Unknown,Transcriptomics,Genomics,Proteomics

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MRNA Profiling of cytoplasmic and polysome fractions from #483 T-ALL treated with 4EGI-1 or DMSO


ABSTRACT: High activation of the PI3K-AKT-mTOR pathway is characteristic for T-cell acute lymphoblastic leukemia (T-ALL). Here we investigated how 4EGI-1, a small inhibitor of cap-dependent translation, induces apoptosis in T-ALL clones displaying hyperactive PI3K-AKT-mTOR signaling. 4EGI-1 treatment reduced the ribosomal occupancy of transcripts that define the molecular difference between T-ALL blasts and normal thymocytes. These transcripts encoded proteins for the translational machinery, for mitochondrial metabolism as well as oncoproteins such as Cyclin D1, Bcl-2 and c-myc. Therefore, targeting translation initiation proves valuable in situations where mTOR is activated by multiple events. For each biological replicate 5 x 107 #483 T-ALL cells were treated with 100 M-NM-

ORGANISM(S): Mus musculus

SUBMITTER: Adrian Schwarzer 

PROVIDER: E-GEOD-56150 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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