Islet Encapsulation: New Developments for the Treatment of Type 1 Diabetes
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Aims/hypothesis Structural and functional imaging of the islets of Langerhans and the insulin-secreting beta cells represents a significant challenge and a long-lasting objective in diabetes research. In vivo microscopy offers a valuable insight into beta ...
Springer Verlag2009
Autoimmune diabetes mellitus in humans is characterized by immunological destruction of pancreatic beta islet cells. We investigated the circumstances under which CD8(+) T cells specific for pancreatic beta-islet antigens induce disease in mice expressing ...
Endocrine beta cells produce and release insulin in order to tightly regulate glucose homeostasis and prevent metabolic pathologies such as Diabetes Mellitus. Optical imaging has contributed greatly to our current understanding of beta cell structure and f ...
Bentham Science Publishers2010
Background. Fas ligand (FasL) mediates apoptosis of susceptible Fas-expressing lymphocytes, and may contribute to the maintenance of peripheral tolerance. In transplantation models, however, artificial expres- sion of FasL on cellular as well as islet tran ...
Lippincott, Williams & Wilkins2000
Immunosuppressive and antiviral prophylactic drugs are needed to prevent acute rejection and infection after transplantation. We assessed the efficacy and safety of the introduction of universal valganciclovir prophylaxis in combination with a tacrolimus/m ...
Swiss Medical Publishers Ltd / EMH Swiss Medical Publishers2007
A method has been defined to interfacially photopolymerize poly(ethylene glycol) diacrylates (PEG diacrylates) to form a crosslinked hydrogel membrane upon the surfaces of porcine islets of Langerhans to serve as an immune barrier for allo- and xenotranspl ...
AIMS/HYPOTHESIS: We examined a clinical model of ex vivo transdifferentiation of primary adult hepatocytes to insulin-secreting cells for the treatment of type 1 diabetes. MATERIALS AND METHODS: Isolated rat hepatocytes were transduced in primary culture w ...
Although expressed at very low levels in islets of NOD mice, GAD65 is a candidate islet autoantigen. Two transgenic lines of NOD/Lt mice expressing high levels of human GAD65 from a rat insulin promoter were generated. Transgenes were integrated on proxima ...
Allogeneic MHC-incompatible organ or cell grafts are usually promptly rejected by immunocompetent hosts. Here we tested allogeneic beta-islet cell graft acceptance by immune or naive C57BL/6 mice rendered diabetic with streptozotocin (STZ). Fully MHC-misma ...
The GABA-synthesizing enzyme glutamic acid decarboxylase (GAD) is expressed in pancreatic beta-cells and GABA has been suggested to play a role in islet cell development and function. Mouse beta-cells predominantly express the larger isoform of the enzyme, ...
