BCL6 and aneurysmal bone cyst: For example, although MCL1 is preferentially de-regulated in a fraction of ABC-DLBCLs and its expression is associated with response to obatoclax [34], our results showed that MCL1 up-regulation is a common feature upon BCL6 inhibition also in GCB-DLBCLs, making them more sensitive to obatoclax.