In vitro growth of functional islets of Langerhans
First Claim
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1. A method for the production of islet cells comprising culturing mammalian pancreatic stem cells in a nutrient medium supplemented with serum from the same mammalian species, growing the stem cells for at least three weeks allowing for the establishment of mature stromal cells and initiating the differentiation of said stromal cells into islet cells by adding serum from the same mammalian species.
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Abstract
The subject invention concerns new methods which make it possible, for the first time, to grow functional islet cells in in vitro cultures. The ability to grow these cells opens up important new avenues for research and therapy relating to diabetes.
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10 Claims
- 1. A method for the production of islet cells comprising culturing mammalian pancreatic stem cells in a nutrient medium supplemented with serum from the same mammalian species, growing the stem cells for at least three weeks allowing for the establishment of mature stromal cells and initiating the differentiation of said stromal cells into islet cells by adding serum from the same mammalian species.
- 7. A method for producing insulin comprising culturing mammalian pancreatic stem cells in a nutrient medium supplemented with serum from the same mammalian species, growing the stem cells for at least three weeks allowing for the establishment of mature stromal cells, initiating the differentiation of said stromal cells into islet cells by adding serum from the same mammalian species and recovering the insulin.
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