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Updated: May 31, 2026

Establishment of Genome-edited Human Pluripotent Stem Cell Lines: From Targeting to Isolation
Published on: February 2, 2016
Genetic engineering of human pluripotent cells using TALE nucleases
Dirk Hockemeyer1, Haoyi Wang, Samira Kiani
1The Whitehead Institute for Biomedical Research, Cambridge, Massachusetts, USA.
Transcription activator-like effector nucleases (TALENs) precisely engineer human pluripotent cells. This study demonstrates TALENs
Area of Science:
- Genomic engineering
- Stem cell biology
- Molecular biology
Background:
- Targeted genetic engineering of human pluripotent cells is crucial for their applications.
- Site-specific nucleases are key tools for precise genome modification.
Purpose of the Study:
- To engineer transcription activator-like effector nucleases (TALENs) for targeted genetic modification.
- To evaluate TALENs' efficiency and precision in human embryonic stem cells (ESCs) and induced pluripotent stem cells (iPSCs).
Main Methods:
- Engineered TALENs targeting five distinct genomic loci.
- Applied TALENs to human ESCs and iPSCs.
- Selected and analyzed clones with successful genetic modifications.
Main Results:
- Achieved site-specific integration of transgenic cassettes at all tested genomic loci.
- Obtained human ESC and iPSC clones with modifications exclusively at TALEN-specified locations.
- Demonstrated TALENs' efficiency and precision comparable to zinc-finger nucleases (ZFNs).
Conclusions:
- TALENs are effective tools for site-specific genome engineering in human pluripotent cells.
- The described TALEN architectures provide a reliable method for precise genetic manipulation.
- TALENs offer an alternative to ZFNs for advancing stem cell engineering.
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