“By contrast, STI571 is unique among c-Abl-specific tyrosine kinase inhibitors in modulating the pharmacologic activity of ATRA.”
“Whereas STI571 is not a cytodifferentiating agent by itself, the compound interacts with ATRA and enhances the myeloid maturation program set in motion by the retinoid in the PML-RARalpha(+) acute promyelocytic leukemia NB4 and the PML-RARalpha(-) myeloblastic HL60 and U937 cell lines.”