The oncoprotein MYC has the dual capacity to drive cell cycle progression or induce apoptosis, depending on the cellular context. BAG1 was previously identified as a transcriptional target of MYC that functions as a critical determinant of this cell fate decision. | Interaction between the BAG1S isoform and HSP70 mediates the stability of antiapoptotic proteins and the survival of osteosarcoma cells expressing oncogenic MYC