Figure 6.
Time course and stability of gene repair. (A) FACS analysis was used to follow GFP protein expression over time. GFP was detected as early as 1 day after ssODN transfection and did not increase significantly after 2 days. Cells transfected with m5CpGGFP showed a significantly greater number of GFP-positive cells as compared with cultures treated with targeting ssODNs, but lacking the methyl-CpG modification. *P ≤ 0.008. (B) FACS dot-plots of myoblasts treated with ssODNs 2 and 7 days after transfection of oligonucleotides. (C) Analysis of cultures by fluorescence microscopy after treatment with the m5CpGGFP ssODN and maintained in culture for 4 days. Bright fluorescence intensity was detected in a subset of replicating cells.