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CD82 is a useful marker to isolate b cell precursors from human iPS-derived cells and plays a role for the maturation of b cells

ABSTRACT: CD82 is a useful marker to isolate b cell precursors from human iPS-derived cells and plays a role for the maturation of b cells

PROVIDER: PRJNA596768 | ENA |

REPOSITORIES: ENA

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CD82 is a useful marker to isolate b cell precursors from human iPS-derived cells and plays a role for the maturation of b cells

Project description:Gene expression analysis of the differentiation process of iPS cells to pancreatic islet cells has revealed that expression of CD82 defines a subset of iPS cell-derived pancreatic endocrine progenitors (EP). While some cell surface proteins such as CD142, CD200 and SUSD2 have been reported as markers of pancreatic progenitor (PP) and EP, CD82+ EP cells are distinct from those PP and EP characterized by the previously identified markers. CD82+ cells isolated from EP cells efficiently differentiated into pancreatic endocrine cells, particularly β cells. Also, CD82+ cells isolated from human cadaver pancreases secreted insulin in response to a high glucose concentration. Furthermore, blocking of CD82 expression by siRNA or inhibition of CD82 in EP by monoclonal antibodies suppressed maturation of β cells, indicating that CD82 plays a role for maturation of EP to β cells. In conclusion, this study identified CD82 not only as a useful marker to isolate β cell precursors but also as an important molecule for functional maturation of β cells.

2022-03-01 | GSE142367 | GEO

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CD82 is a marker to isolate β cell precursors from human iPS cells and plays a role for the maturation of β cells.

Project description:Generation of pancreatic β cells from pluripotent stem cells is a key technology to develop cell therapy for insulin-dependent diabetes and considerable efforts have been made to produce β cells. However, due to multiple and lengthy differentiation steps, production of β cells is often unstable. It is also desirable to eliminate undifferentiated cells to avoid potential risks of tumorigenesis. To isolate β cell precursors from late stage pancreatic endocrine progenitor (EP) cells derived from iPS cells, we have identified CD82, a member of the tetraspanin family. CD82+ cells at the EP stage differentiated into endocrine cells more efficiently than CD82- EP stage cells. We also show that CD82+ cells in human islets secreted insulin more efficiently than CD82- cells. Furthermore, knockdown of CD82 expression by siRNA or inhibition of CD82 by monoclonal antibodies in NGN3+ cells suppressed the function of β cells with glucose-stimulated insulin secretion, suggesting that CD82 plays a role in maturation of EP cells to β cells.

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