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Singh, S.P.* ; Janjuha, S. ; Hartmann, T.* ; Kayisoglu, O.* ; Konantz, J.* ; Birke, S.* ; Murawala, P.* ; Alfar, E.A.* ; Murata, K.* ; Eugster, A.* ; Tsuji, N.* ; Morrissey, E.R.* ; Brand, M.* ; Ninov, N.

Different developmental histories of beta-cells generate functional and proliferative heterogeneity during islet growth.

Nat. Commun. 8:664 (2017)
Verlagsversion Forschungsdaten DOI
Open Access Gold
Creative Commons Lizenzvertrag
The proliferative and functional heterogeneity among seemingly uniform cells is a universal phenomenon. Identifying the underlying factors requires single-cell analysis of function and proliferation. Here we show that the pancreatic beta-cells in zebrafish exhibit different growth-promoting and functional properties, which in part reflect differences in the time elapsed since birth of the cells. Calcium imaging shows that the beta-cells in the embryonic islet become functional during early zebrafish development. At later stages, younger beta-cells join the islet following differentiation from post-embryonic progenitors. Notably, the older and younger beta-cells occupy different regions within the islet, which generates topological asymmetries in glucose responsiveness and proliferation. Specifically, the older beta-cells exhibit robust glucose responsiveness, whereas younger beta-cells are more proliferative but less functional. As the islet approaches its mature state, heterogeneity diminishes and beta-cells synchronize function and proliferation. Our work illustrates a dynamic model of heterogeneity based on evolving proliferative and functional beta-cell states.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Pancreatic Endocrine Progenitors; Alpha Cell; Characteristic Features; Fluorescent Proteins; Insulin-secretion; Expressing Cells; Zebrafish; Mouse; Morphogenesis; Regeneration
ISSN (print) / ISBN 2041-1723
e-ISSN 2041-1723
Zeitschrift Nature Communications
Quellenangaben Band: 8, Heft: , Seiten: , Artikelnummer: 664 Supplement: ,
Verlag Nature Publishing Group
Verlagsort London
Begutachtungsstatus Peer reviewed
Institut(e) Institute for Pancreatic Beta Cell Research (IPI)