@article{Xie05082014,
author = {Xie, Fei and Ye, Lin and Chang, Judy C. and Beyer, Ashley I. and Wang, Jiaming and Muench, Marcus O. and Kan, Yuet Wai}, 
title = {Seamless gene correction of β-thalassemia mutations in patient-specific iPSCs using CRISPR/Cas9 and piggyBac},
year = {2014}, 
doi = {10.1101/gr.173427.114}, 
elocation-id = {gr.173427.114}, 
abstract ={β-thalassemia, one of the most common genetic diseases worldwide, is caused by mutations in the human hemoglobin beta (HBB) gene. Creation of human induced pluripotent stem cells (iPSCs) from β-thalassemia patients could offer an approach to cure this disease. Correction of the disease-causing mutations in iPSCs could restore normal function and provide a rich source of cells for transplantation. In this study, we used the latest gene-editing tool, CRISPR/Cas9 technology, combined with the piggyBac transposon to efficiently correct the HBB mutations in patient-derived iPSCs without leaving any residual footprint. No off-target effects were detected in the corrected iPSCs, and the cells retain full pluripotency and exhibit normal karyotypes. When differentiated into erythroblasts using a monolayer culture, gene-corrected iPSCs restored expression of HBB compared to the parental iPSCs line. Our study provides an effective approach to correct HBB mutations without leaving any genetic footprint in patient-derived iPSCs, thereby demonstrating a critical step toward the future application of stem cell-based gene therapy to monogenic diseases.}, 
URL = {http://genome.cshlp.org/content/early/2014/07/30/gr.173427.114.abstract}, 
eprint = {http://genome.cshlp.org/content/early/2014/07/30/gr.173427.114.full.pdf+html}, 
journal = {Genome Research} 
}