Subsequently, we compared the expression of the miRNAs between TAL1-positive and -negative T-ALL cell lines and verified that they were (miR-101, 520d-5p) or tended to be (miR-140-5p and miR-448; not reaching statistical significance), more expressed in the TAL1-negative cell lines. The gene discussed is TAL1; the disease is acute lymphoblastic leukemia.