SEKINE Hidekazu
   Department   Graduate School of Medical Science, Graduate School of Medical Science
   Position   Associate Professor
Article types Original article
Language English
Peer review Peer reviewed
Title Densely vascularized thick 3D tissue shows enhanced protein secretion constructed with intermittent positive pressure.
Journal Formal name:Communications biology
Abbreviation:Commun Biol
ISSN code:23993642/23993642
Domestic / ForeginForegin
Volume, Issue, Page 8(1),pp.201
Author and coauthor KATSUURA Misako†, HOMMA Jun*, SEKINE Hidekazu*, SHIMIZU Tatsuya
Authorship Corresponding author
Publication date 2025/02/08
Summary Constructing a dense vascular endothelial network within engineered tissue is crucial for successful engraftment. The present study investigated the effects of air-compressing intermittent positive pressure (IPP) on co-cultured mesenchymal stem cells and vascular endothelial cells and evaluated the potential of IPP-cultured cell sheets for transplantation therapy. The results demonstrated that the IPP (+) group exhibited a denser vascular endothelial network and significantly increased cell sheet thickness compared to the IPP (-) group. Furthermore, in vivo experiments showed that IPP-cultured cell sheets enhanced the secretion of Gaussian luciferase by genetically modified mesenchymal stem cells. These findings highlight the IPP method as a technique that simultaneously enables the thickening of planar tissues and the construction of vascular networks. This approach demonstrates promise for fabricating functional, transplantable, and thick tissues with dense vascularization and a high capacity for protein secretion, paving the way for novel applications in regenerative medicine.
DOI 10.1038/s42003-025-07627-6
PMID 39922952