Cholinergic stimulation prevents the development of autoimmune diabetes: Evidence for the modulation of Th17 effector cells via an IFNgamma-dependent mechanism

Bibliographic Details
Title: Cholinergic stimulation prevents the development of autoimmune diabetes: Evidence for the modulation of Th17 effector cells via an IFNgamma-dependent mechanism
Authors: Junu George, Ghada Bashir, Mohammed M Qureshi, Yassir A Mohamed, Jamil Roumanos Azzi, Basel K al-Ramadi, Maria J Fernandez-Cabezudo
Source: Frontiers in Immunology, Vol 7 (2016)
Publisher Information: Frontiers Media S.A., 2016.
Publication Year: 2016
Collection: LCC:Immunologic diseases. Allergy
Subject Terms: Acetylcholine, Th17, IFNg, type I diabetes, Anti-inflammatory pathway, Inhibition of AChE, Immunologic diseases. Allergy, RC581-607
More Details: Type I diabetes (T1D) results from T cell-mediated damage of pancreatic β-cells and loss of insulin production. The cholinergic anti-inflammatory pathway represents a physiological link connecting the central nervous and immune systems via vagus nerve, and functions to control the release of proinflammatory cytokines. Using the multiple-low-dose streptozotocin (MLD-STZ) model to induce experimental autoimmune diabetes, we investigated the potential of regulating the development of hyperglycemia through administration of paraoxon, a highly specific acetylcholinesterase inhibitor (AChEI). We demonstrate that pretreatment with paraoxon prevented hyperglycemia in STZ-treated C57BL/6 mice. This correlated with a reduction in T cell infiltration into pancreatic islets and preservation of the structure and functionality of β-cells. Gene expression analysis of pancreatic tissue revealed that increased peripheral cholinergic activity prevented STZ-mediated loss of insulin production, this being associated with a reduction in IL-1β, IL-6, and IL-17 proinflammatory cytokines. Intracellular cytokine analysis in splenic T cells demonstrated that inhibition of AChE led to a shift in STZ-induced immune response from a predominantly disease-causing IL-17-expressing Th17 cells to IFNγ-positive Th1 cells. Consistent with this conclusion, inhibition of AChE failed to prevent STZ-induced hyperglycemia in IFNγ-deficient mice. Our results provide mechanistic evidence for the prevention of murine T1D by inhibition of AChE and suggest a promising strategy for modulating disease severity.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1664-3224
Relation: http://journal.frontiersin.org/Journal/10.3389/fimmu.2016.00419/full; https://doaj.org/toc/1664-3224
DOI: 10.3389/fimmu.2016.00419
Access URL: https://doaj.org/article/dd3ed4718ba843c49431a71798eb565b
Accession Number: edsdoj.3ed4718ba843c49431a71798eb565b
Database: Directory of Open Access Journals
More Details
ISSN:16643224
DOI:10.3389/fimmu.2016.00419
Published in:Frontiers in Immunology
Language:English