Transcriptomics

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Engineered stomach tissue as a renewable source of functional beta-cells for blood glucose regulation


ABSTRACT: The gastrointestinal (GI) epithelium is a highly regenerative tissue with the potential to provide a renewable source of insulin+ cells using cellular reprogramming. Here, we describe the antral stomach as a previously unrecognized source highly amenable to conversion into functional insulin-secreting cells. Native antral endocrine cells share a surprising degree of transcriptional similarity with pancreatic beta-cells. Expression of beta-cell reprogramming factors in vivo converts antral cells efficiently into insulin+ cells with close molecular and functional resemblance to beta-cells. Our data further indicate that the intestine-expressed Cdx2 acts as a molecular barrier for beta-cell conversion. Induced GI insulin+ cells can suppress hyperglycemia over at least 6 months and they regenerate rapidly after ablation from the native stem-cell compartment. Transplantation of bioengineered stomach mini-organs also produced insulin+ cells and suppressed hyperglycemia. These studies demonstrate the potential of developing engineered stomach tissue as a renewable source of functional beta-cells for glycemic control.

ORGANISM(S): Mus musculus

PROVIDER: GSE76686 | GEO | 2016/01/09

SECONDARY ACCESSION(S): PRJNA308316

REPOSITORIES: GEO

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