Biomaterial Applications in Islet Encapsulation and Transplantation

Julia S Caserto1, Daniel T Bowers1, Kaavian Shariati1

  • 1Department of Biological and Environmental Engineering, Cornell University, Ithaca, New York 14853, United States.

ACS Applied Bio Materials
|January 12, 2022
PubMed

The worldwide prevalence of type 1 diabetes motivates the development of different treatment options for the disease. Current clinical treatments typically require patient involvement, often resulting in stress or inconvenience to the patient due to frequent blood glucose measurements and insulin injections or infusions. Islet transplantation, a potentially curative treatment, is limited by donor availability and the need for long-term administration of immunosuppressants. Cell encapsulation may prevent graft rejection without immunosuppression, however, foreign body responses, mass transfer limitations, scalability, and safety are all significant challenges. This Spotlight paper summarizes our recent efforts to address these challenges including developing biomaterials to mitigate foreign body responses and fibrosis, engineering scalable and retrievable encapsulation devices, as well as designing oxygen supplementation and vascularization strategies.

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