Methods of reprogramming cells
First Claim
1. A method for reprogramming a first differentiated cell of exocrine origin to a second differentiated cell that exhibits at least two characteristics of a pancreatic β
- -cell, does not express pancreatic hormones other than insulin and does not express amylase, the method comprising increasing protein expression of transcription factors Pdx-1, Ngn3 and MaFA in the first differentiated cell of exocrine origin, thereby reprogramming the first differentiated cell of exocrine origin to a second differentiated cell that exhibits at least two characteristics of a pancreatic β
-cell, does not express pancreatic hormones other than insulin and does not express amylase, wherein the first differentiated cell of exocrine origin is isolated from a subject or located in vivo within the subject.
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Abstract
The present invention provides methods of reprogramming cells, for example, directly reprogramming a somatic cell of a first cell type into a somatic cell of a second cell type, are described herein. In particular, the present invention generally relates to methods for reprogramming a cell of an endoderm origin to a cell having pancreatic β-cell characteristics. The present invention also relates to an isolated population comprising reprogrammed cells, compositions and their use in the treatment of diabetes mellitus. In particular, the present invention relates to reprogramming a cell of an endoderm origin to a cell having pancreatic β-cell characteristics by increasing the protein expression of at least one transcription factor selected from Pdx1, Ngn3 or MafA in the cell of endoderm origin to reprogram the cell of an endoderm cell to a cell which exhibits at least one or at least two characteristics of an endogenous pancreatic β-cell.
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Citations
12 Claims
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1. A method for reprogramming a first differentiated cell of exocrine origin to a second differentiated cell that exhibits at least two characteristics of a pancreatic β
- -cell, does not express pancreatic hormones other than insulin and does not express amylase, the method comprising increasing protein expression of transcription factors Pdx-1, Ngn3 and MaFA in the first differentiated cell of exocrine origin, thereby reprogramming the first differentiated cell of exocrine origin to a second differentiated cell that exhibits at least two characteristics of a pancreatic β
-cell, does not express pancreatic hormones other than insulin and does not express amylase, wherein the first differentiated cell of exocrine origin is isolated from a subject or located in vivo within the subject. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- -cell, does not express pancreatic hormones other than insulin and does not express amylase, the method comprising increasing protein expression of transcription factors Pdx-1, Ngn3 and MaFA in the first differentiated cell of exocrine origin, thereby reprogramming the first differentiated cell of exocrine origin to a second differentiated cell that exhibits at least two characteristics of a pancreatic β
Specification