in contrast , calcium ionophores at concentrations of 0.4-1.6 micrograms/ml ionomycin and 0.2-0.8 micrograms/ml a23187 , in the presence of 0.05-4 ng/ml tpa , induced marked dna synthesis and b-cell proliferation , as shown by analyses of incorporation of [ 3h ] thymidine , growth kinetics , and the percentage of cells in the s and g2 + m phases of the cell cycle .
C0007634
the
C0079396
g2