Turning immune cells into cancer killers
Tumors often contain a hodgepodge of cells. Some cells have genetic glitches, others don’t; some obey normal growth rules, others divide out of control. Immune cells enter the mix as well, initially swooping in to reject the tumor as they would other foreign substances. Later, however, these same cellular sentinels may inexplicably let down their guard, allowing the cancer to gain a foothold.