ST6GAL1 and acute lymphoblastic leukemia: As shown in Figure S7, over a period of 15 days, the steady-state growth of two BCP-ALLs, JFK125 and JFK125R, was comparable, irrespective of the OP9 stromal support (Galectin-3 or Galectin-1 knockout) or the absence or presence of ST6Gal1 activity in the BCP-ALL cells.