Research Project
Grant-in-Aid for Challenging Exploratory Research
To optimize the function of insulin-secreting cells for effective cell-based therapy for type 1 diabetics, we developed mixed multicellular spheroids using insulin-secreting MIN6 cells together with endothelial MAEC cells or with fibroblast NIH3T3 cells. Fluorescence microscopy imaging of spheroids consisting of fluorescently labeled cells showed that MIN6 and MAEC cells almost evenly distributed within the spheroids, whereas in MIN6/NIH3T3 spheroids, NIH3T3 cells were surrounded by MIN6 cells. Insulin secretion from MIN6 cells was upregulated by spheroid formation, and the MIN6/MAEC spheroid more efficiently secreted insulin upon glucose stimulation. Transplantation of the MIN6/MAEC spheroids showed a remarkable reduction in the blood glucose level of diabetic model mice.
All 2015 2014 2013
All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (9 results)
Journal of Controlled Release
Volume: 173 Pages: 119-124
10.1016/j.jconrel.2013.10.024
120005353503
J. Am. Chem. Soc.
Volume: 135 Issue: 30 Pages: 11032-11039
10.1021/ja4018682
J Biosci Bioeng
Volume: 印刷中 Issue: 6 Pages: 695-699
10.1016/j.jbiosc.2012.12.017