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Updated: Jan 24, 2026
08:35
In Vitro Pancreas Organogenesis from Dispersed Mouse Embryonic Progenitors
Published on: July 19, 2014
14.2K
A transcriptomic roadmap to α- and β-cell differentiation in the embryonic pancreas
Léon van Gurp1, Mauro J Muraro1,2, Tim Dielen1
1Hubrecht Institute/KNAW and University Medical Center Utrecht, Uppsalalaan 8, 3584CT Utrecht, The Netherlands.
Development (Cambridge, England)
|June 5, 2019
Summary
This study maps the single-cell gene expression changes during mouse pancreas development. It reveals new genes controlling the differentiation of alpha and beta cells, crucial for understanding diabetes.
Area of Science:
- Developmental Biology
- Endocrinology
- Genomics
Background:
- Pancreatic endocrine cells differentiate from epithelial progenitors during development.
- The precise molecular mechanisms governing alpha and beta cell differentiation remain incompletely understood.
Purpose of the Study:
- To characterize temporal and lineage-specific developmental programs during mouse pancreatic development.
- To identify novel gene signatures involved in alpha and beta cell fate transitions.
Main Methods:
- Single-cell RNA sequencing of thousands of individual pancreatic cells from embryonic day 12.5 to 18.5 in mice.
- Enrichment of MIP-GFP reporter to focus on alpha and beta cell differentiation.
- Transcriptomic heterogeneity analysis and pseudotime analysis of endocrine precursor clusters (Neurog3, Fev).
Main Results:
- Identification of all known embryonic pancreatic cell types with a focus on alpha and beta cell development.
- Characterization of transcriptomic heterogeneity in the tip domain and two distinct endocrine precursor clusters.
- Pseudotime analysis revealed specific gene regulatory patterns, including novel genes, associated with alpha and beta cell differentiation.
Conclusions:
- This study provides a dynamic, single-cell resolution resource for embryonic pancreas development.
- Novel gene signatures critical for pancreatic alpha and beta cell differentiation have been identified.
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