Gata3 promotes Gfi1b expression in E2A^−/− lymphomas. QPCR analysis of (A) Gfi1b and (B) Gfi1 mRNA in 0531 cells 48 hours after infection with Banshee or Gata3siRNA retrovirus. (C) Western blot analysis of Gata3 expression in 1.F9 and 0531 cells 48 hours after infected with control (S003) or pXMI-Gata3 retrovirus. (D) QPCR analysis of Gfi1b and Gfi1 mRNA in 1.F9 (left graph) and 0531 (right graph) 48 hours after infection with control (▪) or Gata3-producing retrovirus ⊡. The standard error of triplicate measurements is shown for panels A, B, and D.