CSPG4 and acute lymphoblastic leukemia: A total of 105 NG2+ MLLr-B-ALL cells (n = 4 patients) were i.v. transplanted and, once PB engraftment reached >0.5%, mice were daily i.p. treated with the NG2 antagonist Ch’ase (0.06 U/mouse) or anti-NG2 7.1 MoAb (10 mg/kg/mouse) for 7 days (Fig. 1b).