Publications

Dernière publication 15/05/2012

Cutting Edge- Neuronal Recognition by CD8 T Cells Elicits Central Diabetes Insip

An increasing number of neurologic diseases is associated with autoimmunity. The immune effectors contributing to the pathogenesis of such diseases...

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    [title] => Cutting Edge- Neuronal Recognition by CD8 T Cells Elicits Central Diabetes Insip
    [paragraph] => Cutting Edge: Neuronal Recognition by CD8 T Cells Elicits Central Diabetes Insipidus. 
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Authors
T. Scheikl, B. Pignolet, C. Dalard, S. Desbois, D. Raison et al.

 Lab
INSERM, U1043, Toulouse, France.
Journal
The Journal of Immunology
Abstract
An increasing number of neurologic diseases is associated with autoimmunity. The immune effectors contributing to the pathogenesis of such diseases are often unclear. To explore whether self-reactive CD8 T cells could attack CNS neurons in vivo, we generated a mouse model in which the influenza virus hemagglutinin (HA) is expressed specifically in CNS neurons. Transfer of cytotoxic anti-HA CD8 T cells induced an acute but reversible encephalomyelitis in HA-expressing recipient mice. Unexpectedly, diabetes insipidus developed in surviving animals. This robust phenotype was associated with preferential accumulation of cytotoxic CD8 T cells in the hypothalamus, upregulation of MHC class I molecules, and destruction of vasopressin-expressing neurons. IFN-_ production by the pathogenic CD8 T cells was necessary for MHC class I upregulation by hypothalamic neurons and their destruction. This novel mouse model, in combination with related human data, supports the concept that autoreactive CD8 T cells can trigger central diabetes insipidus.
BIOSEB Instruments Used
Aron Test or Four Plates Test (LE830),Rotarod (BX-ROD)

Keywords/Topics
Diabète, Insuline & Glucose; Métabolisme
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Un outil rapide pour l'évaluation de substances anxiolytiques putatives chez l'animal naïf. Un "must" pour l'étude de l'anxiété, le screening des drogues et le phénotypage.
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