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Anti-Insulin Immune Responses Are Detectable in Dogs with Spontaneous Diabetes
Jong-Hyuk Kim1,2,3, Eva Furrow1, Michelle G Ritt1
1Department of Veterinary Clinical Sciences, University of Minnesota College of Veterinary Medicine, St. Paul, MN, United States of America.
Plos One
|April 1, 2016
Summary
Canine diabetes shows immune responses against insulin, similar to human type-1 diabetes. This research supports using diabetic dogs to explore new immune tolerance therapies.
Area of Science:
- Veterinary immunology
- Endocrinology
- Canine health
Background:
- Canine diabetes mellitus shares similarities with human type-1 diabetes, but its immunologic origin is debated.
- Investigating immune responses in diabetic dogs is crucial for understanding disease mechanisms and potential treatments.
Purpose of the Study:
- To determine if peripheral immune responses against islet antigens are present in dogs with diabetes.
- To assess the potential of using diabetic dogs as a model for studying antigen-specific tolerance therapies.
Main Methods:
- Serum samples from diabetic and non-diabetic dogs were analyzed for antibodies against islet antigens using radioassays.
- Interferon-gamma production from T cells stimulated by insulin was measured using Elispot assays.
Main Results:
- Antibodies against insulin were found in some diabetic dogs undergoing insulin therapy.
- Both non-diabetic and diabetic dogs exhibited T cells reactive to insulin, indicating cellular immune responses.
- Humoral and cellular immune responses to insulin are detectable in dogs with diabetes.
Conclusions:
- The study provides evidence for immune responses against insulin in diabetic dogs.
- These findings support the ethical use of diabetic dogs to investigate therapeutic antigen-specific tolerance.
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