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PMID:18579729

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Citation

Li, Z, McKercher, SR, Cui, J, Nie, Z, Soussou, W, Roberts, AJ, Sallmen, T, Lipton, JH, Talantova, M, Okamoto, S and Lipton, SA (2008) Myocyte enhancer factor 2C as a neurogenic and antiapoptotic transcription factor in murine embryonic stem cells. J. Neurosci. 28:6557-68

Abstract

Cell-based therapies require a reliable source of cells that can be easily grown, undergo directed differentiation, and remain viable after transplantation. Here, we generated stably transformed murine ES (embryonic stem) cells that express a constitutively active form of myocyte enhancer factor 2C (MEF2CA). MEF2C has been implicated as a calcium-dependent transcription factor that enhances survival and affects synapse formation of neurons as well as differentiation of cardiomyocytes. We now report that expression of MEF2CA, both in vitro and in vivo, under regulation of the nestin enhancer effectively produces "neuronal" progenitor cells that differentiate into a virtually pure population of neurons. Histological, electrophysiological, and behavioral analyses demonstrate that MEF2C-directed neuronal progenitor cells transplanted into a mouse model of cerebral ischemia can successfully differentiate into functioning neurons and ameliorate stroke-induced behavioral deficits.

Links

PubMed PMC2679693 Online version:10.1523/JNEUROSCI.0134-08.2008

Keywords

Animals; Apoptosis/genetics; Brain Ischemia/therapy; Brain Tissue Transplantation/methods; Cell Differentiation/physiology; Cell Line, Transformed; Cell Proliferation; Cell Survival/genetics; Cells, Cultured; Embryonic Stem Cells/cytology; Embryonic Stem Cells/metabolism; Embryonic Stem Cells/transplantation; Gene Expression Regulation/genetics; Intermediate Filament Proteins/genetics; Intermediate Filament Proteins/metabolism; Male; Mice; Mice, Inbred C57BL; Myogenic Regulatory Factors/genetics; Nerve Degeneration/etiology; Nerve Degeneration/physiopathology; Nerve Degeneration/therapy; Nerve Tissue Proteins/genetics; Nerve Tissue Proteins/metabolism; Neurons/cytology; Neurons/metabolism; Organ Culture Techniques; Stem Cell Transplantation/methods; Stem Cells/cytology; Stem Cells/metabolism; Transcription Factors/genetics

Significance

Annotations

Gene product Qualifier GO Term Evidence Code with/from Aspect Extension Notes Status

MOUSE:MEF2C

involved_in

GO:0043524: negative regulation of neuron apoptotic process

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

MOUSE:MEF2C

involved_in

GO:0010628: positive regulation of gene expression

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

MOUSE:MEF2C

involved_in

GO:0045666: positive regulation of neuron differentiation

ECO:0000314: direct assay evidence used in manual assertion

P

Seeded From UniProt

complete

MOUSE:MEF2C

involved_in

GO:2000987: positive regulation of behavioral fear response

ECO:0000315: mutant phenotype evidence used in manual assertion

P

Seeded From UniProt

complete


See also

References

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