Adams, David S.
Project UMass Medical School
Type I insulin dependent diabetes mellitus is an auto-immune disorder characterized by hyperglycemia due to insulin deficiency. The destruction of the insulin producing pancreatic -islet cells is proposed to be caused by the migration of auto-reactive T-cells to the pancreas, mediated by cytokines and chemokines. Diabetes can be induced in a susceptible rat model by injections of poly IC. Measurements of various cytokine levels by ELISA, after treatment of diabetes-resistant and susceptible rat strains with poly IC, allowed for the characterization of cytokine responses prior to the onset of diabetes. With the exception of MCP-1, all cytokines measured were produced in equivalent amounts by diabetes-resistant and susceptible rat strains. IL-2 appears not to be directly involved in the onset of diabetes. INF- and RANTES were necessary but not sufficient for the induction of diabetes. Decreased levels of MCP-1 were associated with diabetes resistance.
Worcester Polytechnic Institute
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Biology and Biotechnology