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Updated: May 9, 2026
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Generation of Scaffold-free, Three-dimensional Insulin Expressing Pancreatoids from Mouse Pancreatic Progenitors In Vitro
Published on: June 2, 2018
Mouse muscle as an ectopic permissive site for human pancreatic development
Carmen Capito1, Marie-Thérèse Simon, Virginie Aiello
1INSERM U845, Research Center Growth and Signalling, Faculté de Médecine Cochin, Université Paris Descartes, Paris, France.
Diabetes
|July 10, 2013
Summary
Human pancreatic development in mice is slower than in rodents. A new skeletal muscle graft model allows gene transfer for studying human pancreatic development regulation.
Area of Science:
- Developmental Biology
- Regenerative Medicine
- Endocrinology
Background:
- Limited experimental models hinder detailed study of human pancreatic development.
- Previous xenograft models showed human pancreatic beta-cell development under kidney capsule.
Purpose of the Study:
- Compare human and murine fetal pancreatic graft development in different locations.
- Establish a new model for longitudinal studies and localized manipulation of human pancreatic development.
Main Methods:
- Xenografting of human and murine fetal pancreas under kidney capsule and skeletal muscle epimysium.
- Comparison of differentiation and proliferation rates of human and murine pancreatic beta-cells.
- In vivo lentivirus-mediated gene transfer into skeletal muscle grafts.
Main Results:
- Human pancreatic beta-cell development is significantly slower (weeks) than murine pancreas (days).
- Skeletal muscle epimysium allows for easier in vivo gene transfer targeting specific cell types.
- The skeletal muscle graft model facilitates longitudinal studies and localized manipulation.
Conclusions:
- The skeletal muscle epimysium xenograft model provides a novel approach for studying human pancreatic development.
- This model allows for detailed examination of regulatory mechanisms governing human pancreatic beta-cell development.
- The slower developmental timeline in humans compared to murine models is highlighted.
