To clarify the effect of fibroblast growth factor-21 (FGF-21) on islet transplantation, a suboptimal number of islets were transplanted into streptozotocin (STZ)-induced diabetic mice with or without FGF-21 treatment. Three-day treatment with FGF-21 contributed to restoration of normoglycemia by suppressing islet graft loss. The FGF-21-treated mice showed lower glycemic levels despite similar insulin content in the graft than that in untreated mice on day 3, indicating that FGF-21 not only has a cytoprotective effect but also decreases β-cell load by increasing insulin sensitivity. These results suggest that FGF-21 may be useful as a treatment to improve islet engraftment rates in clinical islet transplantation.
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http://dx.doi.org/10.4161/isl.2.4.12402 | DOI Listing |
Pharmacol Rep
January 2025
Department of Pharmacy, The First People's Hospital of Changzhou/The Third Affiliated Hospital of Soochow University, Changzhou, 213003, Jiangsu, China.
Tacrolimus (TAC) is an immunosuppressant widely utilized in organ transplantation. One of its primary adverse effects is glucose metabolism disorder, which significantly increases the risk of diabetes. Investigating the molecular mechanisms underlying TAC-induced diabetes is essential for developing effective prevention and treatment strategies for these adverse effects.
View Article and Find Full Text PDFCell Transplant
January 2025
Department of Translational Research and Cellular Therapeutics, Arthur Riggs Diabetes & Metabolism Research Institute, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA, USA.
Islet transplantation (IT) is a successful natural cell therapy. But the benefits are known mostly to individuals with severe type 1 diabetes who undergo IT and the health care professionals that work to make the therapy available, reproducible, and safe. Data linking IT to overall survival in T1D might alter this situation and frame the therapy in a more positive light.
View Article and Find Full Text PDFJ Diabetes
January 2025
State Key Laboratory of Female Fertility Promotion, Department of Obstetrics and Gynecology, Clinical Stem Cell Research Center, Peking University Third Hospital, Beijing, China.
Pancreatic islet transplantation is a crucial treatment for managing type 1 diabetes (T1D) in clinical settings. However, the limited availability of human cadaveric islet donors and the need for ongoing administration of immunosuppressive agents post-transplantation hinder the widespread use of this treatment. Stem cell-derived islet organoids have emerged as an effective alternative to primary human islets.
View Article and Find Full Text PDFTransplantation
January 2025
Department of Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA.
Nano Lett
January 2025
Department of Radiology, Interventional Radiology Innovation at Stanford (IRIS), Stanford University School of Medicine, Palo Alto, California 94304, United States.
In this study, we designed a nanoscale platform for sustained amino acid delivery to support transplanted pancreatic islets. The platform features mesoporous silica nanoparticles (MSNPs) loaded with glutamine (G), an essential amino acid required for islet survival and function, and coated with polydopamine (PD). We investigated various PD concentrations (0.
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