Table 4.
Table for the gene therapy.
| Method | Medicinal product | Targeted | Results | Research status |
|---|---|---|---|---|
| Genome editing | CRISPR/Cas9 | mutated gene | repaired by homology-directed repair with a repair template | genetic correction in HCM hiPSC1-3 (55–57), and correct HCM caused by a GAGT-deletion in exon 16 of the MYBPC3 gene (58). |
| Exonskipping | antisense oligonucleotide | exonic splicing enhancer sequences of an inframe mutated exon | preventing binding of proteins involved in the splicing process | in newborn mice abolished cardiac dysfunction and prevented the development of leftventricularhypertrophy (59). |
| CRISPR/Cas9 | mutated DNA sequence | Permanently cut in-frame the mutated exon. | ||
| Allele-specific silencing | specific RNA interferene molecule | mutant mRNA | knocked-down mutant mRNA | eliminate the mutant allele and delay the progression of cardiomyopathy in Myh6-targeted knock-in mice (63). |
| RNA trans-splicing | specific RNA interferene molecule | pre-mRNA | competes with cis-splicing | successful 5′trans-splicing in the context of HCM in cardiomyocytes and in vivo in Mybpc3-targeted knock-in mice and hiPSC (61, 62, 64). |
| Gene replacement | full-length cDNA | mutated DNA | functional full-length protein | in Mybpc3-targeted knock-in mice/hiPSCs, which were retrieved from an HCM patient carrying a truncating MYBPC3 muta -tion (49, 65, 66). |