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Updated: Jul 16, 2026
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In vitro and in vivo Bioluminescence Reporter Gene Imaging of Human Embryonic Stem Cells
Published on: May 2, 2008
Efficient multicistronic expression of a transgene in human embryonic stem cells
Kouichi Hasegawa1, Aaron B Cowan, Norio Nakatsuji
1Laboratory of Embryonic Stem Cell Research, Stem Cell Research Center, Institute for Frontier Medical Sciences, Kyoto University, 53 Kawaharacho, Shogoin, Sakyo-ku, Kyoto 606-8507, Japan.
Stem Cells (Dayton, Ohio)
|March 31, 2007
Summary
Efficiently modifying human embryonic stem cells (hESCs) with multiple genes is now possible using a novel multicistronic expression system. This technique ensures reliable expression of transgenes in hESCs and their derivatives.
Area of Science:
- Biotechnology
- Stem Cell Biology
- Molecular Genetics
Background:
- Human embryonic stem cells (hESCs) hold great promise for regenerative medicine.
- Efficient genetic modification of hESCs with multiple genes is crucial for expanding their applications.
- Current methods for multicistronic expression in hESCs can be inefficient or lack precise control.
Purpose of the Study:
- To develop and validate a novel method for efficient multicistronic transgene expression in hESCs.
- To assess the reliability and consistency of multicistronic protein expression in hESCs and their differentiated progeny.
- To establish a robust genetic engineering tool for hESC applications requiring multiple transgene expression.
Main Methods:
- Utilized a single-promoter-driven system leveraging the foot-and-mouth disease virus (FMDV) 2A peptide for multicistronic expression.
- Introduced multiple transgenes into hESCs via the FMDV 2A-mediated system.
- Evaluated protein expression levels and ratios of multicistronic transgenes in hESCs.
- Assessed the functionality of multicistronic expression in hESC-derived differentiated cells through in vitro and in vivo assays.
Main Results:
- Achieved efficient multicistronic transgene expression in hESCs mediated by the FMDV 2A sequence.
- Demonstrated near-equal expression levels of all encoded proteins from the multicistronic construct.
- Confirmed successful multicistronic protein expression in hESC-derived cells following both in vitro and in vivo differentiation.
- Showcased the stability and reliability of the expression system across different cell types.
Conclusions:
- The FMDV 2A-mediated multicistronic expression system provides an efficient and reliable method for genetic engineering of hESCs.
- This technology facilitates the simultaneous expression of multiple transgenes in hESCs and their derivatives.
- This advancement offers significant potential for applications in genetic engineering, cell therapy, and disease modeling using hESCs.
