Fig. 2.
sIL-11R induces differentiation of M1 cells in the presence of IL-11. May-Grünwald Giemsa Stain (×400 original magnification) of parental M1 cells after 5 days in liquid culture in the presence of (A) IL-11 500 pmol/L (B) sIL-11R 40 nmol/L (C) LIF 1,000 U/mL (D) IL-11 plus sIL-11R.