Methods for creating integration-free, virus-free, exogenous oncogene-free IPS cells and compositions for use in such methods
First Claim
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1. A method for reprogramming a somatic cell into an induced pluripotent stem (iPS) cell in vitro comprising:
- expressing exogenous sex determining region Y-box 2 (Sox-2), Kruppel-like factor 4 (Klf-4), and octamer-binding transcription factor 3/4 (Oct3/4) in the somatic cell from DNA that has not integrated into genomic DNA of the somatic cell; and
culturing the somatic cell in a reprogramming medium comprising an exogenous activating receptor-like kinase 5 (Alk-5) inhibitor, an exogenous histone deacetylase inhibitor, an exogenous activator of glycolysis, and ascorbic acid to obtain an iPS cell.
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Abstract
Methods are disclosed for reprogramming a somatic cell, including an adherent cell and a cell in suspension, into an induced pluripotent stem comprising expressing exogenous Sox-2, exogenous Klf-4, exogenous Oct3/4 from DNA that has not integrated into the genome of the somatic cell, suppressing p53 activity within the somatic cell, and exposing the somatic cell to reprogramming-assistance factors comprising an exogenous Alk-5 inhibitor, an exogenous histone deacetylase inhibitor, and an exogenous activator of glycolysis. Compositions and kits for use in such methods are also disclosed as are cells made by such a method.
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19 Claims
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1. A method for reprogramming a somatic cell into an induced pluripotent stem (iPS) cell in vitro comprising:
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expressing exogenous sex determining region Y-box 2 (Sox-2), Kruppel-like factor 4 (Klf-4), and octamer-binding transcription factor 3/4 (Oct3/4) in the somatic cell from DNA that has not integrated into genomic DNA of the somatic cell; and culturing the somatic cell in a reprogramming medium comprising an exogenous activating receptor-like kinase 5 (Alk-5) inhibitor, an exogenous histone deacetylase inhibitor, an exogenous activator of glycolysis, and ascorbic acid to obtain an iPS cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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