gluconate in both G1 phase and S phase cells.The permeability of G1 phase cells to I-was higher than that in S phase cells,but to gluconate was lower than that in S phase cells.CONCLUSIONS: The density of the volume-activated Cl-current,the anion permeability of the channel and the sensitivity of the current to tamoxifen were different between the CNE-2Z cells in G1 phase and those in S phase.The results suggest that the expression of tamoxifen-sensitive,volume-activated chloride channels is differentiated at different stages of the cell cycle.
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