Fig. 5

F-actin distribution in normal, dense, suspension cell cultures. At low cell densities, the F-actin in stress fibers is thick and abundant in HCC94 (a-c) and A431 (j-l) cells. At high cell densities, stress fibers were thin and less evident in HCC94 (d-f) and A431 (m-o) cells. No stress fiber were observed in suspension cultured HCC94 (g-i) and A431 (p-r) cells