desferrioxamine ( dfoa ) enhanced tfr expression when added in the dose range of 10 ( -5 ) -10 ( -4 ) to ccrf-cem cells , but was toxic to these cells , the lower concentrations producing a slowing of cell growth with a build up in s-phase , while higher concentrations caused cell death with a block at the g1/s-phase interface .
C0007634
cells
C0079395
g1