Related Experiment Video
Updated: Aug 19, 2026

CRISPR-Cas9 Mediated Gene Deletion in Human Pluripotent Stem Cells Cultured Under Feeder-Free Conditions
Published on: November 1, 2024
Highly efficient mRNA-based gene transfer in feeder-free cultured H9 human embryonic stem cells
Peter Ponsaerts1, Sjaak van der Sar, Viggo F I Van Tendeloo
1Laboratory of Experimental Hematology, Faculty of Medicine, Antwerp University Hospital, University of Antwerp, Antwerp, Belgium. Peter.Ponsaerts@ua.ac.be
Abstract:
Several protocols have been described for virus-based gene transfer in human embryonic stem (hES) cells, while efficient non-viral methods are currently non-existing. In this study, we investigated the efficiency of mRNA-based gene transfer in feeder-free cultured H9 hES cells, based on electroporation of in vitro transcribed mRNA encoding the enhanced green fluorescent protein (EGFP). Optimisation of culture and electroporation conditions for feeder-free cultured H9 hES cells resulted a highly pure, transgene-expressing (90% positive cells) H9 hES cell population.

