TWIST1 and lymphoma: To determine the potential role of TWIST-1 in leukemia, we quantified the mRNA and protein expression of TWIST-1 in the myeloid cell lines NB4, KG1a, J6–1, U937, HL-60, and K562, originally derived from patients with myeloid leukemia, as well as CEM, Ramos, Jurkat, and Namalwa derived from leukemia of lymphoid origin, or lymphoma patients.