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Updated: Jan 3, 2026

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions
Published on: November 1, 2024
Generation of two ERF gene knockout human embryonic stem cell lines using CRISPR/Cas9 system
Lihui Si1, Ruiqi Yang1, Jian Liu1
1Department of Obstetrics and Gynecology, The Second Hospital of Jilin University, China.
Abstract:
Human ERF gene is a transcription factor involved in development, trophoblast differentiation, apoptosis, and cancer progress. To further understand the exact roles of ERF in these processes, here we report that establishment of two ERF knockout human embryonic stem cell (hESC) lines by CRISPR/Cas9 mediated gene targeting. These cell lines exhibited classical hESC morphology and normal karyotype, and highly expressed pluripotent markers, and had differentiation potential in vitro. These cell lines provide good materials to understand the roles of ERF in development, trophoblast differentiation and craniosynostosis for further studies.
Insights
Researchers created two ERF gene knockout human embryonic stem cell lines using CRISPR/Cas9. These cell lines are vital for studying ERF
Area of Science:
- Developmental Biology
- Stem Cell Biology
- Gene Regulation
Background:
- The ERF gene is a transcription factor crucial for embryonic development, trophoblast differentiation, apoptosis, and cancer progression.
- Understanding ERF's precise functions requires experimental models that allow for its manipulation.
Purpose of the Study:
- To generate and characterize ERF knockout human embryonic stem cell (hESC) lines.
- To provide essential tools for investigating the roles of ERF in various biological processes.
Main Methods:
- CRISPR/Cas9 gene editing technology was employed to create two distinct ERF knockout hESC lines.
- Standard cell culture techniques were used to maintain and propagate the engineered hESC lines.
- Karyotyping and pluripotent marker expression analysis were performed to confirm cell line integrity.
Main Results:
- Two ERF knockout hESC lines were successfully established.
- These cell lines maintained classical hESC morphology and a normal karyotype.
- High expression of pluripotent markers and in vitro differentiation potential were observed.
Conclusions:
- The generated ERF knockout hESC lines are suitable for further research.
- These cell lines will facilitate the study of ERF's roles in human development, trophoblast differentiation, and craniosynostosis.

