Defining lineage potential and fate behavior of precursors during pancreas development Journal Article


Author(s): Sznurkowska, Magdalena K; Hannezo, Edouard; Azzarelli, Roberta; Rulands, Steffen; Nestorowa, Sonia; Hindley, Christopher J; Nichols, Jennifer; Göttgens, Berthold; Huch, Meritxell; Philpott, Anna; Simons, Benjamin D
Article Title: Defining lineage potential and fate behavior of precursors during pancreas development
Affiliation IST Austria
Abstract: Pancreas development involves a coordinated process in which an early phase of cell segregation is followed by a longer phase of lineage restriction, expansion, and tissue remodeling. By combining clonal tracing and whole-mount reconstruction with proliferation kinetics and single-cell transcriptional profiling, we define the functional basis of pancreas morphogenesis. We show that the large-scale organization of mouse pancreas can be traced to the activity of self-renewing precursors positioned at the termini of growing ducts, which act collectively to drive serial rounds of stochastic ductal bifurcation balanced by termination. During this phase of branching morphogenesis, multipotent precursors become progressively fate-restricted, giving rise to self-renewing acinar-committed precursors that are conveyed with growing ducts, as well as ductal progenitors that expand the trailing ducts and give rise to delaminating endocrine cells. These findings define quantitatively how the functional behavior and lineage progression of precursor pools determine the large-scale patterning of pancreatic sub-compartments.
Keywords: Animals; Cell Differentiation; Cell Proliferation; Gene Expression Regulation; Physiology; specification; morphogenesis; animal; Genetics; Differentiation; Organogenesis; Development; Cell Lineage; stem cell; metabolism; branching morphogenesis; pancreas; acini; ducts; islets; tubulogenesis; acinar cell; endocrine cell; growth, development and aging; Acinar Cells
Journal Title: Developmental Cell
Volume: 46
Issue 3
ISSN: 18781551
Publisher: Cell Press  
Date Published: 2018-08-06
Start Page: 360
End Page: 375
DOI: 10.1016/j.devcel.2018.06.028
Notes: E.H. is funded by a Junior Research Fellowship from Trinity College, Cam-bridge, a Sir Henry Wellcome Fellowship from the Wellcome Trust, and theBettencourt-Schueller Young Researcher Prize for support.
Open access: no