cyclopentenone prostaglandins ( pgs ) such as pga2 and delta 12-pgj2 act specifically on cells in the g1 phase and induce block of cell cycle progression ( ohno , k. , sakai , t. , fukushima , m. , narumiya , s. , and fujiwara , m. ( 1988 ) j. pharmacol . exp . ther . 245 , 294-298 ) .
C0007634
cells
C0079395
g1 phase