TF and acute myeloid leukemia: A more recent in vivo and in vitro study found that the human acute myelogenous leukemia cell line FFMA-AML and TF (v-SRC) cells displayed resistance to standard retinoid (including trans-retinoic acid, 9-cis-retinoic acid, and the synthetic retinoid TTNPB) induced apoptosis but showed sensitivity to 3-Cl-AHPC and AHPN mediated apoptosis.