A stress-free strategy to correct point mutations in patient iPS cells.
A stress-free strategy to correct point mutations in patient iPS cells.
复制标题
纠正患者 iPS 细胞点突变的无压力策略。
DOI:
10.1016/j.scr.2021.102332
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发表时间:
2021-05
影响因子:
1.2
通讯作者:
Iacovitti L
中科院分区:
文献类型:
--
作者:
Cai J;Kropf E;Hou YM;Iacovitti L
When studying patient specific induced pluripotent stem cells (iPS cells) as a disease model, the ideal control is an isogenic line that has corrected the point mutation, instead of iPS cells from siblings or other healthy subjects. However, repairing a point mutation in iPS cells even with the newly developed CRISPR-Cas9 technique remains difficult and time-consuming. Here we report a strategy that makes the Cas9 “knock-in” methodology both hassle-free and error-free. Instead of selecting a Cas9 recognition site close to the point mutation, we chose a site located in the nearest intron. We constructed a donor template with the fragment containing the corrected point mutation as one of the homologous recombination arms flanking a PGK-PuroR cassette. After selection with puromycin, positive clones were identified and further transfected with a CRE vector to remove the PGK-PuroR cassette. Using this methodology, we successfully repaired the point mutation G2019S of the LRRK2 gene in a Parkinson Disease (PD) patient iPS line and the point mutation R329H of the AARS1 gene in a Charcot-Marie-Tooth disease (CMT) patient iPS line. These isogenic iPS lines are ideal as a control in future studies.
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影响因子:
4
作者:
Goldwurm, S;Di Fonzo, A;Bonifati, V
通讯作者:
Bonifati, V
影响因子:
14.9
作者:
Harmsen T;Klaasen S;van de Vrugt H;Te Riele H
通讯作者:
Te Riele H
影响因子:
64.8
作者:
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通讯作者:
Liu DR
DOI:
10.1073/pnas.0507360102
发表时间:
2005-11-15
影响因子:
11.1
作者:
West, AB;Moore, DJ;Dawson, TM
通讯作者:
Dawson, TM
影响因子:
3.7
作者:
Armstrong GA;Liao M;You Z;Lissouba A;Chen BE;Drapeau P
通讯作者:
Drapeau P