Anti-insulin immune responses are detectable in dogs with spontaneous diabetes

Jong Hyuk Kim, Eva Furrow, Michelle G Ritt, Paul J. Utz, William H. Robinson, Liping Yu, Andrea Eckert, Kathleen Stuebner, Timothy D O'Brien, Lawrence Steinman, Jaime Modiano

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Abstract

Diabetes mellitus occurs spontaneously in dogs. Although canine diabetes shares many features with human type-1 diabetes, there are differences that have cast doubt on the immunologic origin of the canine disease. In this study, we examined whether peripheral immune responses directed against islet antigens were present in dogs with diabetes. Routine diagnostics were used to confirm diabetic status, and serum samples from dogs with (N = 15) and without (N = 15) diabetes were analyzed for the presence of antibodies against islet antigens (insulin, glutamic acid decarboxylase, insulinoma-associated protein tyrosine phosphatase, and islet beta-cell zinc cation efflux transporter) using standard radioassays. Interferon-γ production from peripheral blood T cells stimulated by porcine insulin and by human insulin was tested using Elispot assays. Anti-insulin antibodies were detectable in a subset of diabetic dogs receiving insulin therapy. Pre-activated T cells and incipient insulin-reactive T cells in response to porcine or human insulin were identified in non-diabetic dogs and in dogs with diabetes. The data show that humoral and cellular anti-insulin immune responses are detectable in dogs with diabetes. This in turn provides support for the potential to ethically use dogs with diabetes to study the therapeutic potential of antigen-specific tolerance.

Original languageEnglish (US)
Article numbere0152397
JournalPloS one
Volume11
Issue number3
DOIs
StatePublished - Mar 1 2016

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Medical problems
diabetes
insulin
immune response
Dogs
Insulin
dogs
T-cells
T-lymphocytes
T-Lymphocytes
Antigens
antigens
Insulin, Regular, Pork
Dog Diseases
Insulin Antibodies
Insulinoma
Protein Tyrosine Phosphatases
Glutamate Decarboxylase
protein-tyrosine-phosphatase
swine

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Anti-insulin immune responses are detectable in dogs with spontaneous diabetes. / Kim, Jong Hyuk; Furrow, Eva; Ritt, Michelle G; Utz, Paul J.; Robinson, William H.; Yu, Liping; Eckert, Andrea; Stuebner, Kathleen; O'Brien, Timothy D; Steinman, Lawrence; Modiano, Jaime.

In: PloS one, Vol. 11, No. 3, e0152397, 01.03.2016.

Research output: Contribution to journalArticle

Kim, JH, Furrow, E, Ritt, MG, Utz, PJ, Robinson, WH, Yu, L, Eckert, A, Stuebner, K, O'Brien, TD, Steinman, L & Modiano, J 2016, 'Anti-insulin immune responses are detectable in dogs with spontaneous diabetes', PloS one, vol. 11, no. 3, e0152397. https://doi.org/10.1371/journal.pone.0152397
Kim, Jong Hyuk ; Furrow, Eva ; Ritt, Michelle G ; Utz, Paul J. ; Robinson, William H. ; Yu, Liping ; Eckert, Andrea ; Stuebner, Kathleen ; O'Brien, Timothy D ; Steinman, Lawrence ; Modiano, Jaime. / Anti-insulin immune responses are detectable in dogs with spontaneous diabetes. In: PloS one. 2016 ; Vol. 11, No. 3.
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