Low-dose nano-gel incorporated with bile acids enhanced pharmacology of surgical implants

Ther Deliv. 2023 Jan;14(1):17-29. doi: 10.4155/tde-2022-0037. Epub 2023 Mar 15.

Abstract

Aim: Major challenges to islet transplantation in Type 1 diabetes include host-inflammation, which results in failure to maintain survival and functions of transplanted islets. Therefore, this study investigated the applications of encapsulating the bile acid ursodeoxycholic acid (UDCA) with transplanted islets within improved nano-gel systems for Type 1 diabetes treatment. Materials & methods: Islets were harvested from healthy mice, encapsulated using UDCA-nano gel and transplanted into the diabetic mice, while the control group was transplanted encapsulated islets without UDCA. The two groups' survival plot, blood glucose, and inflammation and bile acid profiles were analyzed. Results & conclusion: UDCA-nano gel enhanced survival, glycemia and normalized bile acids' profile, which suggests improved islets functions and potential adjunct treatment for insulin therapy.

Keywords: bile acids; diabetes; graft; nano gel; pharmaceutical sciences; surfactant; transplantation.

Plain language summary

In this study, we explore the delivery of insulin producing cells that may benefit those with Type 1 diabetes. Cells were delivered to mice in a protective matrix. The matrix contained unique components, such as bile acids, that allowed for sustained reduction in glucose levels. This process may represent a novel diabetes treatment that could be an alternative to traditional insulin therapies.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Bile Acids and Salts / therapeutic use
  • Blood Glucose
  • Diabetes Mellitus, Experimental* / drug therapy
  • Diabetes Mellitus, Type 1* / drug therapy
  • Diabetes Mellitus, Type 1* / surgery
  • Insulin / therapeutic use
  • Islets of Langerhans Transplantation* / methods
  • Mice

Substances

  • Bile Acids and Salts
  • Insulin
  • Blood Glucose