Reprogramming of cells to a new fate
First Claim
Patent Images
1. A method of converting an animal cell from a first non-pluripotent cell fate to a second non-pluripotent cell fate, the method comprising:
- (a) introducing a polynucleotide encoding an Oct4 polypeptide, and optionally one or more reprogramming factors comprising polynucleotides encoding a Klf4 polypeptide, a Sox2 polypeptide, or a c-Myc polypeptide, into a first non-pluripotent cell, orcontacting a first non-pluripotent cell with an Oct4 polypeptide, and optionally one or more reprogramming factors comprising a Klf4 polypeptide, a Sox2 polyeptide, or a c-Myc polypeptide,(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell and(c) inducing differentiation of the cell under conditions to generate a cell having a second non-pluripotent cell fate.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods and compositions for transdifferentiation of an animal cell from (i) a first pluripotent cell fate to a second nonpluripotent cell fate or (ii) from a non-pluripotent mesodermal, endodermal, or ectodermal cell fate to a different non-pluripotent mesodermal, endodermal, or ectodermal cell fate.
45 Citations
23 Claims
-
1. A method of converting an animal cell from a first non-pluripotent cell fate to a second non-pluripotent cell fate, the method comprising:
-
(a) introducing a polynucleotide encoding an Oct4 polypeptide, and optionally one or more reprogramming factors comprising polynucleotides encoding a Klf4 polypeptide, a Sox2 polypeptide, or a c-Myc polypeptide, into a first non-pluripotent cell, or contacting a first non-pluripotent cell with an Oct4 polypeptide, and optionally one or more reprogramming factors comprising a Klf4 polypeptide, a Sox2 polyeptide, or a c-Myc polypeptide, (b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell and (c) inducing differentiation of the cell under conditions to generate a cell having a second non-pluripotent cell fate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A method of differentiating an animal cell into a cardiomyocyte, the method comprising:
-
(a) generating a non-pluripotent intermediate cell by (i) introducing a first non-pluripotent animal cell having a first non-pluripotent cell fate a polynucleotide encoding Oct4, and optionally, one more reprogramming factors comprising polynucleotides encoding a Klf4 polypeptide, a Sox2 polyeptide, or a c-Myc polypeptide;
or (ii) contacting a first non-pluripotent animal cell having a first non-pluripotent cell fate with Oct4, and optionally, one or more reprogramming factors comprising a Klf4 polypeptide, a Sox2 polypeptide, or a c-Myc polypeptide;(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell; and (c) contacting the non-pluripotent intermediate cell with a GSK-3 inhibitor and/or a BMP protein under conditions sufficient to generate a cardiomyocyte. - View Dependent Claims (13, 14)
-
-
15. A method of transdifferentiating an animal cell into a cardiomyocyte, comprising:
-
(a) introducing into a first non-pluripotent animal cell having a first non-pluripotent cell fate a polynucleotide encoding Oct4, and optionally, one or more reprogramming factors comprising polynucleotides encoding a Klf4 polypeptide, a Sox2 polypeptide, or a c-Myc polypeptide;
or contacting a non-pluripotent animal cell having a first non-pluripotent cell fate with an Oct4 polypeptide, and optionally, one or more reprogramming factors comprising a Klf4 polypeptide, a Sox2 polypeptide, or a c-Myc polypeptide;(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell; and (c) contacting the non-pluripotent intermediate cell with a GSK-3 inhibitor, a calcium channel agonist, a Gα
s activating agent, a cAMP analog, and/or a BMP protein under conditions to generate the cardiomyocyte;thereby differentiating the non-pluripotent intermediate cell into the cardiomyocyte. - View Dependent Claims (16, 17)
-
-
18. A method of transdifferentiating an animal cell into a neural progenitor cell, the method comprising:
-
(a) introducing into a non-pluripotent animal cell having a first non-pluripotent cell fate a polynucleotide encoding an Oct4 polypeptide, and optionally, one or more polynucleotides encoding one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;
or contacting a non-pluripotent animal cell having a first non-pluripotent cell fate with an Oct4 polypeptide, and optionally, one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell; and (c) contacting the non-pluripotent intermediate cell with FGF2, FGF4, and EGF under conditions to generate the neural progenitor cell; thereby differentiating the non-pluripotent animal cell into the neural progenitor cell. - View Dependent Claims (19, 20)
-
-
21. A method of transdifferentiating an animal cell into an induced definitive endoderm (iDE) cell, the method comprising:
-
(a) introducing into a non-pluripotent animal cell having a first non-pluripotent cell fate a polynucleotide encoding an Oct4 polypeptide, and optionally, one or more polynucleotides encoding one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;
or contacting a non-pluripotent animal cell having a first non-pluripotent cell fate with an Oct4 polypeptide, and optionally, one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell; and (c) contacting the non-pluripotent intermediate cell with a GSK-3 inhibitor, an HDAC inhibitor, and a TGFβ
/Activin/Nodal family member under conditions to generate the iDE cell;thereby differentiating the non-pluripotent animal cell into the iDE cell.
-
-
22. A method of transdifferentiating an animal cell into a pancreatic beta cell, the method comprising:
-
(a) introducing into a non-pluripotent animal cell having a first non-pluripotent cell fate a polynucleotide encoding an Oct4 polypeptide, and optionally, one or more polynucleotides encoding one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;
or contacting a non-pluripotent animal cell having a first non-pluripotent cell fate with an Oct4 polypeptide, and optionally, one or more polypeptides selected from the group consisting of a Klf4 polypeptide, a Sox2 polypeptide and a c-Myc polypeptide;(b) limiting the expression of endogenous Nanog in the cells from step (a) to a level substantially lower than the level of expression of endogenous Nanog in an induced pluripotent cell (iPSC), thereby generating a non-pluripotent intermediate cell; (c) contacting the non-pluripotent intermediate cell with a GSK-3 inhibitor, an HDAC inhibitor, and a TGFβ
/Activin/Nodal family member under conditions to generate an iDE cell; and(d) under conditions to generate the pancreatic beta cell, (1) contacting the iDE cell with FGF7, RA, a Hedgehog pathway inhibitor, a BMP inhibitor, and a TGFβ
/ALK5 receptor inhibitor;(2) contacting the cell of step (d)(1) with EGF and a Notch inhibitor; and (3) contacting the cell of step (d)(2) with bFGF and nicotinamide;
thereby differentiating the non-pluripotent animal cell into the pancreatic beta cell. - View Dependent Claims (23)
-
Specification