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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Modulation of experimental arthritis by vagal sensory and central brain stimulation

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Bassi, Gabriel Shimizu ; Martins Dias, Daniel Penteado ; Franchin, Marcelo ; Talbot, Jhimmy ; Reis, Daniel Gustavo ; Menezes, Gustavo Batista ; Castania, Jaci Airton ; Garcia-Cairasco, Norberto ; Moraes Resstel, Leonardo Barbosa ; Salgado, Helio Cesar ; Cunha, Fernando Queiroz ; Cunha, Thiago Mattar ; Ulloa, Luis ; Kanashiro, Alexandre
Total Authors: 14
Document type: Journal article
Source: BRAIN BEHAVIOR AND IMMUNITY; v. 64, p. 330-343, AUG 2017.
Web of Science Citations: 15

Articular inflammation is a major clinical burden in multiple inflammatory diseases, especially in rheumatoid arthritis. Biological anti-rheumatic drug therapies are expensive and increase the risk of systemic immunosuppression, infections, and malignancies. Here, we report that vagus nerve stimulation controls arthritic joint inflammation by inducing local regulation of innate immune response. Most of the previous studies of neuromodulation focused on vagal regulation of inflammation via the efferent peripheral pathway toward the viscera. Here, we report that vagal stimulation modulates arthritic joint inflammation through a novel ``afferent{''} pathway mediated by the locus coeruleus (LC) of the central nervous system. Afferent vagal stimulation activates two sympatho-excitatory brain areas: the paraventricular hypothalamic nucleus (PVN) and the LC. The integrity of the LC, but not that of the PVN, is critical for vagal control of arthritic joint inflammation. Afferent vagal stimulation suppresses articular inflammation in the ipsilateral, but not in the contralateral knee to the hemispheric LC lesion. Central stimulation is followed by subsequent activation of joint sympathetic nerve terminals inducing articular norepinephrine release. Selective adrenergic beta-blockers prevent the effects of articular norepinephrine and thereby abrogate vagal control of arthritic joint inflammation. These results reveals a novel neuro-immune brain map with afferent vagal signals controlling side-specific articular inflammation through specific inflammatory-processing brain centers and joint sympathetic innervations. (C) 2017 Elsevier Inc. All rights reserved. (AU)

FAPESP's process: 13/20549-7 - New insights in cardiovascular regulation under physiological and pathophysiological condition
Grantee:Helio Cesar Salgado
Support type: Research Projects - Thematic Grants
FAPESP's process: 12/04237-2 - Antiinflammatory Cholinergic Pathway: The role of neuroimmunomodulation in the control of inflammatory response.
Grantee:Alexandre Kanashiro
Support type: Scholarships in Brazil - Young Researchers
FAPESP's process: 11/20343-4 - Antiinflammatory cholinergic pathway: the role of neuroimmunomodulation in the control of inflammatory response
Grantee:Alexandre Kanashiro
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 15/20463-0 - New insights in cardiovascular regulation under physiological and pathophysiological condition
Grantee:Daniel Penteado Martins Dias
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 13/08216-2 - CRID - Center for Research in Inflammatory Diseases
Grantee:Fernando de Queiroz Cunha
Support type: Research Grants - Research, Innovation and Dissemination Centers - RIDC