AXL and B-cell chronic lymphocytic leukemia: Indeed, we detected substantial increase of tyrosine phosphorylation levels on several proteins in H2O2-treated CLL cells (Fig. 5B) including AXL (Fig. 5C) and FGFR (Fig. 5D), but not on Tyro3 (data not shown) or other RTKs like c-MET or IGF1Rβ (Fig. 5D).