Enhanced proliferation and cluster formation of ▵716 cells grown in G-CSF.

Ba/F3 cells transfected with the wild-type (WT) (A, B) or Δ716 G-CSFR (C, D) were grown for 4 days in RPMI 1640 + 10% FBS containing either 10% WEHI-CM as a source of IL-3 (A, C) or 1.9 ng/mL G-CSF (B, D). Cells were examined by inverted microscopy at 200 × and photographed.