Episomal dsDNA-mediated gene repair. (A) Dose-curve for molar ratios of plasmid/1000 ds DNA Rep. Total protein content (black diamonds) is shown on the right y-axis (B) HEK293T cells were transfected with Luc dsDNA fragments and the target vector peGFPLucMut using the molar ratio plasmid/gene repair agent of 1/10 (plain bars). Two days after, cell samples were submitted to luciferase activity measurement to quantify the gene repair efficiency (left y-axis). Total protein content (black squares) is shown on the right y-axis. (C) Similar experiments than in (B) were conducted with the GFP targeted dsDNA fragment and the pmeGFP vector using the molar ratio plasmid/gene repair agent of 1/10 (plain bars). The repair efficiency was measured by eGFP positive cells counting using flow cytometry. For each dsDNA fragments: Ctr, non-correcting control fragment; Rep, repair dsDNA fragment.