on the other hand , when g0-arrested gc-7 cells were stimulated with serum for 23 h up to a late s/g2 phase and then cultured in the presence of cytochalasin d , or when an exponentially growing culture was treated with the drug , the cells were growth arrested at a point 15 h , not 6 h , before the next s phase .
C0007634
cells
C0080129
s phase