LL and directed immune vaccines?

I know LL is being tested in a GBM murine model and it makes sense that LL could be effective via inhibiting ccr5. Would anyone have input on this: am I missing something or would LL be potentially synergistic with something like NWBO's DC-Vax vaccine made to direct immune cells to the cancer antigens? In research updates it looks like DC-Vax is highly synergistic with PD-1 inhibitors (keytruda I think).