AS expression and t(12;21) status.

mRNA expression of AS relative to GAPDH in t(12;21)⁻ and t(12;21)⁺ ALL and in healthy controls. Lines indicate the median value, open circles (○) represent bone marrow of individual patients, and closed circles (●) represent peripheral blood of individual patients.P = .008 relates to the comparison between the t(12;21)⁻ and t(12;21)⁺ patient groups; P = .019 relates to the comparison between the t(12;21)⁺ patient group and healthy controls.