Table 2.
Strategy | Mutation | Nuclease | Target Region | DMD Model | Delivery | Reference |
---|---|---|---|---|---|---|
Double-cut exon exicision |
ΔEx46-51 | SpCas9 | i44, i55 | human iPSCs | electroporation | [38] |
ΔEx52 | SpCas9 | i50, i51 | human iPSCs | AAV6 | [39] | |
ΔEx49-50, ΔEx50-52, ΔEx51-53, ΔEx51-56 |
SaCas9 | Ex47, Ex58 | human myoblasts | lentivirus | [40] | |
Dup Ex18-30 | SpCas9 | i27 | human myoblasts | lentivirus | [122] | |
Dup Ex55-59 | SpCas9 | i54 | human iPSCs | nucleofection | [150] | |
Dup Ex2 | SpCas9 | i2 | human myoblasts | lentivirus | [151] | |
Dup Ex3-16 | SpCas9 | i9 | human myoblasts | lentivirus | [152] | |
Dup Ex18-25 | SpCas9 | i25 | human myoblasts | lentivirus | [153] | |
ΔEx48-50 | SpCas9 | i50, i51 | human myoblasts | electroporation | [154] | |
ΔEx48-50 | SpCas9 | i44, i55 | human myoblasts | electroporation | [154] | |
ΔEx51 | SpCas9, AsCas12a |
i44, i55; i45, i54 |
human myoblasts | electroporation | [155] | |
ΔEx45-52 | SpCas9 | i52, i53 | human myoblasts | adenovirus | [156,157] | |
ΔEx45-52, ΔEx48-50 |
SpCas9, eSpCas9(1.1) |
i43, i54 | human myoblasts | adenovirus | [156,157,158] | |
ΔEx8-9 | SpCas9 | i2, i7; i5, i7; i6, i11 |
human iPSCs | nucleofection | [159] | |
ΔEx3-7 | SpCas9 | i7, i9 | human iPSCs | nucleofection | [159] | |
Ex23 mut | SpCas9 | i22, i23 | mouse myoblasts | lipotransfection | [160] | |
Single-cut exon skipping and reframing |
ΔEx44 | SpCas9 | Ex45 | human iPSCs | nucleofection | [132] |
ΔEx48-50 | SaCas9-KKH | Ex51 | human iPSCs | nucleofection | [133] | |
ΔEx43, ΔEx45 |
SpCas9 | Ex44 | human iPSCs | nucleofection | [134] | |
ΔEx52 | SpCas9 | Ex51 | human iPSCs | nucleofection | [134] | |
ΔEx48-50 | SpCas9-VRQR | Ex51 | human iPSCs | nucleofection | [135] | |
ΔEx48-50 | LbCas12a, AsCas12a |
Ex51 | human iPSCs | nucleofection | [142] | |
ΔEx48-50 | SpCas9 | Ex51 | human iPSCs | nucleofection | [150] | |
Pseudo Ex47 | SpCas9 | i47 | human iPSCs | nucleofection | [150] | |
ΔEx48-50 | eSpCas9(1.1) | Ex51 | human myoblasts | adenovirus | [158] | |
HDR-based knockin |
i6 mut | SpCas9 | i6 | canine myoblasts | nucleofection | [143] |
ΔEx44 | SpCas9 | Ex44 | human iPSCs | electroporation | [161] | |
Base editing | ΔEx51 | ABEmax-nSpCas9 | Ex50 | human iPSCs | nucleofection | [146] |
ΔEx51 | CBE-nSaCas9 | Ex50 | human iPSCs | lipotransfection | [162] | |
Prime editing | ΔEx51 | PE2-dSpCas9 | Ex52 | human iPSCs | nucleofection | [146] |
Ex6 mut | PE2-nSpCas9 | Ex6 | human myoblasts | electroporation | [163] |
Δ, deletion; Ex, exon; i, intron; iPSC, induced pluripotent stem cell; AAV, adeno-associated viral vector; Dup, duplication; mut, mutation.