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Generation of functional human pancreatic ? cells in vitro.

ABSTRACT: The generation of insulin-producing pancreatic ? cells from stem cells in vitro would provide an unprecedented cell source for drug discovery and cell transplantation therapy in diabetes. However, insulin-producing cells previously generated from human pluripotent stem cells (hPSC) lack many functional characteristics of bona fide ? cells. Here, we report a scalable differentiation protocol that can generate hundreds of millions of glucose-responsive ? cells from hPSC in vitro. These stem-cell-derived ? cells (SC-?) express markers found in mature ? cells, flux Ca(2+) in response to glucose, package insulin into secretory granules, and secrete quantities of insulin comparable to adult ? cells in response to multiple sequential glucose challenges in vitro. Furthermore, these cells secrete human insulin into the serum of mice shortly after transplantation in a glucose-regulated manner, and transplantation of these cells ameliorates hyperglycemia in diabetic mice.


PROVIDER: S-EPMC4617632 | BioStudies | 2014-01-01

REPOSITORIES: biostudies

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