Key result
CRISPR-Cas9 successfully generates 3 IRX5-modified human induced pluripotent stem cell lines.
Why the study?
IRX5 plays a key role in cardiac development and ventricular repolarization, with mutations linked to human cardiac conduction defects, necessitating detailed functional characterization.
IRX5-edited human iPSC lines enable functional studies of conduction defects; extends animal data but leaves clinical translation open pending validation.
Studies on animal models have shown that Irx5 is an important regulator of cardiac development and that it regulates ventricular electrical repolarization gradient in the adult heart. Mutations in IRX5 have also been linked in humans to cardiac conduction defects. In order to fully characterize the role of IRX5 during cardiac development and in cardiomyocyte function, we generated three genetically-modified human induced pluripotent stem cell lines: two knockout lines (heterozygous and homozygous) and a knockin HA-tagged line (homozygous).
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Canac et al. (2021) studied Cardiac conduction defects. CRISPR-Cas9 genetic editing (IRX5 knockout and knockin) was evaluated on Generation of genetically-modified human induced pluripotent stem cell lines. Three genetically-modified human induced pluripotent stem cell lines (two IRX5 knockout lines and one knockin HA-tagged line) were successfully generated using the CRISPR-Cas9 system.
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