GATA3 and acute lymphoblastic leukemia: Moreover, Jurkat cells as well as our LMO1-expressing T-ALL primagraft sample showed high expression of GATA3 and SCL/TAL1, and bioinformatic analysis of expression data for 92 T-ALL patient samples demonstrated that the TAL1 subcategory of patients showed the highest levels of LMO1 expression (P=0.02; Mann–Whitney test) with GATA3 expression high across all T-ALL subtypes (see Supplementary Figure S6B).