BID and acute promyelocytic leukemia: The latter have been found to partially induce leukemic cell apoptosis through activation of intrinsic and extrinsic apoptosis pathways in an acute promyelocytic leukemia cell line NB4 by significantly increasing the expression of pro‐apoptotic genes BID and BAX, while decreasing the expression of the anti‐apoptotic gene BCL2 [56].