CCN2 and acute lymphoblastic leukemia: High CCN2 mRNA expression is frequently observed in the lymphoblasts of B-ALL, but rarely in T-ALL (Advani et al. 2010; Boag et al. 2007; Gandemer et al. 2007; Kang et al. 2010; Lu et al. 2014; Sala-Torra et al. 2007; Tesfai et al. 2012; Vorwerk et al. 2002, 2000; Welch et al. 2013, 2015).