Insulin expression and C-peptide in type 1 diabetes subjects implanted with stem cell-derived pancreatic endoderm cells in an encapsulation device
Summary
These preliminary data from an ongoing first-in-human phase 1/2, open-label study provide proof-of-concept that pluripotent stem cell-derived pancreatic endoderm cells (PEC-01) engrafted in type 1 diabetes patients become islet cells releasing insulin in a physiologically regulated fashion. In this study of 17 subjects aged 22-57 with type 1 diabetes, PEC-01 cells were implanted subcutaneously in VC-02 macroencapsulation devices, allowing for direct vascularization of the cells. Engraftment and insulin expression were observed in 63% of VC-02 units explanted from subjects at 3-12 months post-implant. Six of 17 subjects (35.3%) demonstrated positive C-peptide as early as 6 months post-implant. Most reported adverse events were related to surgical implant or explant procedures (27.9%) or to side-effects of immunosuppression (33.7%). Initial data suggest that pluripotent stem cells, which can be propagated to the desired biomass and differentiated into pancreatic islet-like tissue, may offer a scalable, renewable alternative to pancreatic islet transplants. © 2021 The Authors.
| Authors | Shapiro AMJ, Thompson D, Donner TW, Bellin MD, Hsueh W, Pettus J, Wilensky J, Daniels M, Wang RM, Brandon EP, Jaiman MS, Kroon EJ, D'Amour KA, Foyt HL |
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| Journal | Cell reports. Medicine |
| Publication Date | 2021 Dec 21;2(12):100466 |
| PubMed | 35028608 |
| PubMed Central | PMC8714853 |
| DOI | 10.1016/j.xcrm.2021.100466 |
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