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Updated: Jun 3, 2025

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions
Published on: November 1, 2024
Generation of a PDK-1 knockout human embryonic stem cell line by CRISPR/(WAe009-A-2K) Cas9 editing
Amina Saleem1, Mingyu Wei2, Muhammad Khawar Abbas3
1Anzhen Hospital, Capital Medical University, Beijing 100029, China; Beijing Institute of Heart, Lung, and Blood Vessel Diseases, Beijing 100029, China.
Abstract:
Pyruvate Dehydrogenase Kinase1 (PDK1) belongs to the family of kinases, regulates diverse metabolic processes. PDK1 is a susceptibility locus for heart failure via thinning of ventricle walls, and enlarged atria and ventricles. We successfully developed a PDK1 knockout (PDK1-/-) human embryonic stem cell (hESC) line using an episomal vector-based CRISPR/Cas9 system explore the role of PDK in human heart development. This PDK1-KO hESC line-maintained stem cell-like morphology, pluripotency, and normal karyotype and can differentiate into all three germ layers in vivo. This cell line will be a valuable tool for future research on the role of PDK1 in heart development.
Insights
Researchers created a knockout human embryonic stem cell line lacking Pyruvate Dehydrogenase Kinase1 (PDK1). This PDK1-KO hESC line is a valuable tool for studying PDK1
Area of Science:
- Biochemistry and Molecular Biology
- Stem Cell Biology
- Cardiovascular Research
Background:
- Pyruvate Dehydrogenase Kinase1 (PDK1) is a kinase regulating metabolic processes.
- PDK1 is implicated in heart failure, associated with ventricular thinning and atrial/ventricular enlargement.
Purpose of the Study:
- To explore the role of PDK1 in human heart development.
- To generate a PDK1 knockout (PDK1-/-) human embryonic stem cell (hESC) line for research.
Main Methods:
- Utilized an episomal vector-based CRISPR/Cas9 system for gene editing.
- Developed a PDK1 knockout (PDK1-/-) human embryonic stem cell (hESC) line.
Main Results:
- The PDK1-KO hESC line maintained stem cell-like morphology.
- The cell line retained pluripotency and a normal karyotype.
- Confirmed differentiation potential into all three germ layers in vivo.
Conclusions:
- Successfully generated a viable PDK1-KO hESC line.
- This cell line serves as a valuable tool for investigating PDK1's function in human heart development and related pathologies.

