Bioengineered omental transplant site promotes pancreatic islet allografts survival in non-human primates.
Cell Rep Med
; 4(3): 100959, 2023 03 21.
Article
en En
| MEDLINE
| ID: mdl-36863336
ABSTRACT
The transplanting islets to the liver approach suffers from an immediate posttransplant loss of islets of more than 50%, progressive graft dysfunction over time, and precludes recovery of grafts should there be serious complications such as the development of teratomas with grafts that are stem cell-derived islets (SC-islets). The omentum features an attractive extrahepatic alternative site for clinical islet transplantation. We explore an approach in which allogeneic islets are transplanted onto the omentum, which is bioengineered with a plasma-thrombin biodegradable matrix in three diabetic non-human primates (NHPs). Within 1 week posttransplant, each transplanted NHP achieves normoglycemia and insulin independence and remains stable until termination of the experiment. Success was achieved in each case with islets recovered from a single NHP donor. Histology demonstrates robust revascularization and reinnervation of the graft. This preclinical study can inform the development of strategies for ß cell replacement including the use of SC-islets or other types of novel cells in clinical settings.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trasplante de Islotes Pancreáticos
/
Islotes Pancreáticos
Límite:
Animals
Idioma:
En
Revista:
Cell Rep Med
Año:
2023
Tipo del documento:
Article
País de afiliación:
Estados Unidos