FIG. 4.

Actin microfilaments of Wish cells incubated for 3 h at 37°C in 5% CO₂ atmosphere with RPMI medium (A), with cRPMI for 3 h (C) and 6 h (D), or with RPMI containing 20 μM ADP₀ for 3 h (F) and 6 h (G) and nuclei of Wish cells incubated for 3 h at 37°C in a 5% CO₂ atmosphere with RPMI medium (B), with cRPMI (E), or with RPMI containing 20 μM ADP₀ (H). Magnifications: A, C, D, F, and G, ×420; B, H, and F, ×350.