Fig. 6. Basic FGF and LIF synergistically enhance the clonal growth of round cells. Myogenic cell clones derived from satellite cells in gastrocnemius muscle were cultured in pmGM alone (B,C), or in pmGM supplemented with bFGF plus LIF (A,D), for 7 days. Images were obtained by phase-contrast microscopy. Scale bars: 1 mm in A,B, 100 µm in C,D.