Related Experiment Video
Updated: Jun 7, 2026

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions
Published on: November 1, 2024
High-efficiency siRNA-based gene knockdown in human embryonic stem cells
Yinghong Ma1, Jianyu Jin, Chunsheng Dong
1Yale Stem Cell Center, New Haven, Connecticut 06520, USA.
Abstract:
Loss-of-function studies in human embryonic stem cells (hESCs) and induced pluripotent stem cells (iPSCs) via nonviral approaches have been largely unsuccessful. Here we report a simple and cost-effective method for high-efficiency delivery of plasmids and siRNAs into hESCs and iPSCs. Using this method for siRNA delivery, we achieve >90% reduction in the expression of the stem cell factors Oct4 and Lin28, and observe cell morphological and staining pattern changes, characteristics of hESC differentiation, as a result of Oct4 knockdown.

