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Temporal induction of immunoregulatory processes coincides with age-dependent resistance to viral-induced Type 1 Diabetes
Journal article   Open access   Peer reviewed

Temporal induction of immunoregulatory processes coincides with age-dependent resistance to viral-induced Type 1 Diabetes

Yi-Guang Chen, John P Mordes, Elizabeth P Blankenhorn, Himala Kashmiri, Mary L Kaldunski, Shuang Jia, Rhonda Geoffrey, Xujing Wang and Martin J Hessner
Genes and immunity, v 14(6), pp 387-400
Sep 2013
PMID: 23739610
url
https://doi.org/10.1038/gene.2013.31View
Published, Version of Record (VoR) Open

Abstract

Type 1 Diabetes Immune Regulation Gene Expression Inflammation Cytokine Virus-induced diabetes
The dilute plasma cytokine milieu associated with Type 1 diabetes (T1D), while difficult to measure directly, is sufficient to drive transcription in a bioassay that uses healthy leukocytes as reporters. Previously, we reported disease-associated, partially IL-1 dependent, transcriptional signatures in both T1D patients and the BioBreeding (BB) rat model. Here we examine temporal signatures in congenic BBDR. lyp/lyp rats that develop spontaneous T1D, and BBDR rats where T1D progresses only after immunological perturbation in young animals. After weaning, the BBDR temporal signature showed early coincident induction of transcription related to innate inflammation as well as IL-10- and TGF-β-mediated regulation. BBDR plasma cytokine levels mirrored the signatures showing early inflammation, followed by induction of a regulated state that correlated with failure of virus to induce T1D in older rats. In contrast, the BBDR. lyp/lyp temporal signature exhibited asynchronous dynamics, with delayed induction of inflammatory transcription and later, weaker induction of regulatory transcription, consistent with their deficiency in regulatory T cells. Through longitudinal analyses of plasma induced signatures in BB rats and a human T1D progressor, we have identified changes in immunoregulatory processes that attenuate a preexisting innate inflammatory state in BBDR rats, suggesting a mechanism underlying the decline in T1D susceptibility with age.

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11 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Genetics & Heredity
Immunology
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