Project description:Huge efforts are made to engineer safe and efficient genome editing tools. An alternative might be the harnessing of ADAR-mediated RNA editing. We now present the engineering of chemically optimized antisense oligonucleotides that recruit endogenous human ADARs to edit endogenous transcripts in a simple and programmable way, an approach we refer to as RESTORE. Notably, RESTORE was markedly precise, and there was no evidence for perturbation of the natural editing homeostasis. We applied RESTORE to a panel of standard human cell lines, but also to several human primary cells including hepatocytes. In contrast to other RNA and DNA editing strategies, this approach requires only the administration of an oligonucleotide, circumvents the ectopic expression of proteins, and thus represents an attractive platform for drug development. In this respect we have shown the repair of the PiZZ mutation causing α1-antitrypsin deficiency and the editing of phosphotyrosine 701 in STAT1.
2018-12-01 | GSE121573 | GEO
Project description:Novel Cas12a Orthologs for Highly Efficient Genome Editing in Plants
| PRJNA972439 | ENA
Project description:A circularly permuted CasRx platform for efficient and highly site-specific RNA editing
| PRJNA961345 | ENA
Project description:Harnessing DSB repair to promote efficient homology-dependent and -independent prime editing 1
| PRJNA803881 | ENA
Project description:Harnessing DSB repair to promote efficient homology-dependent and -independent prime editing 2
Project description:Base editors (BEs) shed new light on correcting disease-related T-to-C mutations. However, current rat APOBEC1-based BEs are less efficient in editing cytosines in highly-methylated regions or in GpC context. By screening a variety of APOBEC/AID deaminases, we showed that human APOBEC3A-conjugated BE and its engineered forms can mediate efficient C-to-T base editing in all examined contexts, including regions with high-methylation levels and GpC dinucleotides, which extends base editing scope.