1. Herpes Simplex Virus-Mediated Expression of Pax3 and MyoD in Embryoid Bodies Results in Lineage-Related Alterations in Gene Expression Profiles
- Author
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Ying Jiang, Darren Wolfe, David Krisky, April M. Craft, James B. Wechuck, Edward K. Lobenhofer, and Joseph C. Glorioso
- Subjects
Green Fluorescent Proteins ,PAX3 ,Embryoid body ,Biology ,MyoD ,Cell Line, Tumor ,Chlorocebus aethiops ,Gene expression ,Animals ,Humans ,Paired Box Transcription Factors ,Simplexvirus ,Cell Lineage ,Muscle, Skeletal ,PAX3 Transcription Factor ,Vero Cells ,Embryonic Stem Cells ,MyoD Protein ,Regulation of gene expression ,Expression vector ,Gene Expression Profiling ,Gene Transfer Techniques ,Cell Biology ,Embryonic stem cell ,Molecular biology ,Gene expression profiling ,Gene Expression Regulation ,Molecular Medicine ,Developmental Biology - Abstract
The ability of embryonic stem cells to develop into multiple cell lineages provides a powerful resource for tissue repair and regeneration. Gene transfer offers a means to dissect the complex events in lineage determination but is limited by current delivery systems. We designed a high-efficiency replication-defective herpes simplex virus gene transfer vector (JDββ) for robust and transient expression of the transcription factors Pax3 and MyoD, which are known to be involved in skeletal muscle differentiation. JDββ-mediated expression of each gene in day 4 embryoid bodies (early-stage mesoderm) resulted in the induction of unique alterations in gene expression profiles, including the upregulation of known target genes relevant to muscle and neural crest development, whereas a control enhanced green fluorescent protein expression vector was relatively inert. This vector delivery system holds great promise for the use of gene transfer to analyze the impact of specific genes on both regulatory genetic events and commitment of stem cells to particular lineages. Disclosure of potential conflicts of interest is found at the end of this article.
- Published
- 2008
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