Pancreatic autoimmunity induction with insulin B:9-23 peptide and viral mimics in the NZB mouse

Ann N Y Acad Sci. 2006 Oct:1079:135-7. doi: 10.1196/annals.1375.020.

Abstract

To create a new experimental model of diabetes, we used the New Zealand Black (NZB) mouse as a potential model. NZB mice were immunized with B:9-23 insulin peptide in IFA and the viral mimic, poly(A:U). No diabetes was observed but blood glucose was significantly higher in the B:9-23 peptide group compared to controls. Insulin autoantibodies (IAA) were only induced in groups given the B:9-23 peptide. B:9-23 alone induced peri-insulitis. We demonstrate insulin autoimmunity in the NZB mouse using the insulin peptide B:9-23 and viral mimics. The reason for the protection from diabetes despite the presence of autoimmunity is currently not established.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adjuvants, Immunologic / administration & dosage
  • Adjuvants, Immunologic / pharmacology*
  • Animals
  • Autoimmunity / drug effects*
  • Blood Glucose / analysis
  • Diabetes Mellitus, Experimental / blood
  • Diabetes Mellitus, Experimental / genetics*
  • Diabetes Mellitus, Experimental / immunology*
  • Diabetes Mellitus, Experimental / pathology
  • Disease Models, Animal
  • Female
  • Follow-Up Studies
  • Insulin / administration & dosage
  • Insulin / chemistry
  • Insulin / pharmacology*
  • Islets of Langerhans / immunology
  • Islets of Langerhans / pathology
  • Mice
  • Mice, Mutant Strains
  • Peptide Fragments / administration & dosage
  • Peptide Fragments / chemistry
  • Peptide Fragments / pharmacology*
  • Poly A-U / administration & dosage
  • Poly A-U / pharmacology*
  • Time Factors

Substances

  • Adjuvants, Immunologic
  • Blood Glucose
  • Insulin
  • Peptide Fragments
  • Poly A-U