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Single-Cell Transcriptome Profiling Reveals ? Cell Maturation in Stem Cell-Derived Islets after Transplantation.


ABSTRACT: Human pluripotent stem cells differentiated to insulin-secreting ? cells (SC-? cells) in islet organoids could provide an unlimited cell source for diabetes cell replacement therapy. However, current SC-? cells generated in vitro are transcriptionally and functionally immature compared to native adult ? cells. Here, we use single-cell transcriptomic profiling to catalog changes that occur in transplanted SC-? cells. We find that transplanted SC-? cells exhibit drastic transcriptional changes and mature to more closely resemble adult ? cells. Insulin and IAPP protein secretions increase upon transplantation, along with expression of maturation genes lacking with differentiation in vitro, including INS, MAFA, CHGB, and G6PC2. Other differentiated cell types, such as SC-? and SC-enterochromaffin (SC-EC) cells, also exhibit large transcriptional changes. This study provides a comprehensive resource for understanding human islet cell maturation and provides important insights into maturation of SC-? cells and other SC-islet cell types to enable future differentiation strategy improvements.

SUBMITTER: Augsornworawat P 

PROVIDER: S-EPMC7491368 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Single-Cell Transcriptome Profiling Reveals β Cell Maturation in Stem Cell-Derived Islets after Transplantation.

Augsornworawat Punn P   Maxwell Kristina G KG   Velazco-Cruz Leonardo L   Millman Jeffrey R JR  

Cell reports 20200801 8


Human pluripotent stem cells differentiated to insulin-secreting β cells (SC-β cells) in islet organoids could provide an unlimited cell source for diabetes cell replacement therapy. However, current SC-β cells generated in vitro are transcriptionally and functionally immature compared to native adult β cells. Here, we use single-cell transcriptomic profiling to catalog changes that occur in transplanted SC-β cells. We find that transplanted SC-β cells exhibit drastic transcriptional changes and  ...[more]

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