Journal: bioRxiv
Article Title: TFU72 is a novel and potent DNA-PKcs inhibitor for enhancing homology-directed repair gene editing
doi: 10.64898/2026.03.10.710954
Figure Lengend Snippet: HSPCs were edited at HBB locus using RNP, AAV6 (Hifi or WT Cas9) with AZD7648 (A, 0.5 µM) or TFU72 (T, 0.5 µM) or no treatment (U). Mock electroporated cells (M) were used as a negative control. GT denotes gene targeting (HDR) with RNP, AAV6. A . At D3 post editing, a previously characterized off-target site at Chr9 (OT1) was PCR amplified from genomic DNA and sequenced by NGS. Bar graphs show INDEL frequency at the OT1 site as determined by the CRISPResso2 tool analysis of the NGS data (n=2). WT Cas9 edited samples were assessed for the INDELs using Sanger Sequencing and ICE analysis. B . Translocation between on-target (HBB) site and OT1 off-target site was assessed by ddPCR analysis and data is shown as percentage of translocation which is the sum of 4 different translocation outcomes (n=2). C . HSPCs edited at HBB loci with Hifi Cas9 were assessed for the frequency of large deletions at the on-target site using Nanopore sequencing of a 10-kb PCR amplicon. Bar graph shows the frequency of reads with deletions of the sizes 50-1000, 1000-3000, 3000-5000 and above 5000 bp (n=3). D-E. HSPCs edited at HBB locus using RNP, AAV6 with different incubation times of AAV6 (U), AZD7648+AAV6 (A) and TFU72+AAV6 (T) were assessed for the off-target INDELs at the OT1 site as described above. D. Bar graphs show the INDEL frequency at the OT1 site at D3 post editing in samples with 12h, 24h and 72h incubation times (n=1). E. Bar graphs show the frequency of reads with deletions of the sizes 50-1000, 1000-3000, 3000-5000 and above 5000 bp as determined by Nanopore sequencing described above (n=1).
Article Snippet: AAV6 vectors were produced in-house or acquired through Vigene, Signagen, or Vectorbuilder.
Techniques: Negative Control, Amplification, Sequencing, Translocation Assay, Nanopore Sequencing, Incubation