Hijacking of stress response machinery by oncogenes in acute leukaemia [ChIP-seq]

HSF1 orchestrates the heat shock response pathway. This pathway is co-opted in cancer and provides critical stress relief from oncogenic stress. HSF1 has a diverse occupancy signature depending on the cell type. In this study, we performed HSF1 ChIP-seq analysis using the human T-ALL cell line CUTLL1 and P12. These results revealed the HSF1 chromatin binding signature in CUTLL1 and P12 cells. MYC is a driving oncogene in T-ALL. The non-oncogene addiction pathways that act downstream of this transcription factor to support anabolic pathways are not well-understood. For this reason, we performed MYC ChIP-seq analysis using the human T-ALL cell line CUTLL1. These results revealed that HSF1 and HSF1 targets are included in the MYC binding signature. Twenty million cells were used for the ChIP and precipitated using 5 micrograms of antibody (cell signaling, 4356) against human HSF1. Twenty million cells were used for the ChIP and precipitated using 5 micrograms of antibody (santa cruz biotechnology, N-262) against human MYC