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Effect of PNA-peptide conjugate on [3H] thymidine incorporation into cellular DNA in CEM cells: CEM cells were grown in the absence and presence of PNAPBS-penetratin (1 μM, 5 μM and 10 μM). The culture media was supplemented with 10 μCi of [methyl-3H] Thymidine/mL. The cells were harvested at 6, 12, 18, 24, 48, 72 and 96 h. The cells were assayed for the amount of [3H]-Thymidine (TdR) incorporated into DNA by using TCA precipitation assay.
