| RRC ID |
69165
|
| 著者 |
Nakanishi T, Maekawa A, Suzuki M, Tabata H, Sato K, Mori M, Saito I.
|
| タイトル |
Construction of adenovirus vectors simultaneously expressing four multiplex, double-nicking guide RNAs of CRISPR/Cas9 and in vivo genome editing.
|
| ジャーナル |
Sci Rep
|
| Abstract |
Simultaneous expression of multiplex guide RNAs (gRNAs) is valuable for knockout of multiple genes and also for effective disruption of a gene by introducing multiple deletions. We developed a method of Tetraplex-guide Tandem for construction of cosmids containing four and eight multiplex gRNA-expressing units in one step utilizing lambda in vitro packaging. Using this method, we produced an adenovirus vector (AdV) containing four multiplex-gRNA units for two double-nicking sets. Unexpectedly, the AdV could stably be amplified to the scale sufficient for animal experiments with no detectable lack of the multiplex units. When the AdV containing gRNAs targeting the H2-Aa gene and an AdV expressing Cas9 nickase were mixed and doubly infected to mouse embryonic fibroblast cells, deletions were observed in more than 80% of the target gene even using double-nicking strategy. Indels were also detected in about 20% of the target gene at two sites in newborn mouse liver cells by intravenous injection. Interestingly, when one double-nicking site was disrupted, the other was simultaneously disrupted, implying that two genes in the same cell may simultaneously be disrupted in the AdV system. The AdVs expressing four multiplex gRNAs could offer simultaneous knockout of four genes or two genes by double-nicking cleavages with low off-target effect.
|
| 巻・号 |
11(1)
|
| ページ |
3961
|
| 公開日 |
2021-2-17
|
| DOI |
10.1038/s41598-021-83259-0
|
| PII |
10.1038/s41598-021-83259-0
|
| PMID |
33597562
|
| PMC |
PMC7889857
|
| MeSH |
Adenoviridae / genetics*
Animals
CRISPR-Cas Systems
Cosmids
Fibroblasts / metabolism
Gene Editing / methods
Genetic Engineering / methods*
Genetic Vectors / genetics
HEK293 Cells
Hep G2 Cells
Humans
INDEL Mutation / genetics
Mice, Inbred C57BL
Plasmids / genetics
RNA, Guide, Kinetoplastida / genetics*
RNA, Guide, Kinetoplastida / metabolism
|
| IF |
3.998
|
| リソース情報 |
| 遺伝子材料 |
AxCBCas9 (RDB19290)
AxCBNC9 (RDB19291) |
| ヒト・動物細胞 |
293(RCB1637)
Hep G2 |
