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Reprogrammed Stomach Tissue as a Renewable Source of Functional β Cells for Blood Glucose Regulation
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Feb 18 2016
Source: Cell Stem Cell. 18(3):410-421. -
Alternative Title:Cell Stem Cell
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Description:The gastrointestinal (GI) epithelium is a highly regenerative tissue with the potential to provide a renewable source of insulin(+) cells after undergoing cellular reprogramming. Here, we show that cells of the antral stomach have a previously unappreciated propensity for conversion into functional insulin-secreting cells. Native antral endocrine cells share a surprising degree of transcriptional similarity with pancreatic β cells, and expression of β cell reprogramming factors in vivo converts antral cells efficiently into insulin(+) cells with close molecular and functional similarity to β cells. Induced GI insulin(+) cells can suppress hyperglycemia in a diabetic mouse model for at least 6 months and regenerate rapidly after ablation. Reprogramming of antral stomach cells assembled into bioengineered mini-organs in vitro yielded transplantable units that also suppressed hyperglycemia in diabetic mice, highlighting the potential for development of engineered stomach tissues as a renewable source of functional β cells for glycemic control.
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Pubmed ID:26908146
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Pubmed Central ID:PMC4779391
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