Enterocolitis induced by autoimmune targeting of enteric glial cells: a possible mechanism in Crohn's disease?

A Cornet, TC Savidge, J Cabarrocas… - Proceedings of the …, 2001 - National Acad Sciences
A Cornet, TC Savidge, J Cabarrocas, WL Deng, JF Colombel, H Lassmann, P Desreumaux…
Proceedings of the National Academy of Sciences, 2001National Acad Sciences
Early pathological manifestations of Crohn's disease (CD) include vascular disruption, T cell
infiltration of nerve plexi, neuronal degeneration, and induction of T helper 1 cytokine
responses. This study demonstrates that disruption of the enteric glial cell network in CD
patients represents another early pathological feature that may be modeled after CD8+ T
cell-mediated autoimmune targeting of enteric glia in double transgenic mice. Mice
expressing a viral neoself antigen in astrocytes and enteric glia were crossed with specific T …
Early pathological manifestations of Crohn's disease (CD) include vascular disruption, T cell infiltration of nerve plexi, neuronal degeneration, and induction of T helper 1 cytokine responses. This study demonstrates that disruption of the enteric glial cell network in CD patients represents another early pathological feature that may be modeled after CD8+ T cell-mediated autoimmune targeting of enteric glia in double transgenic mice. Mice expressing a viral neoself antigen in astrocytes and enteric glia were crossed with specific T cell receptor transgenic mice, resulting in apoptotic depletion of enteric glia to levels comparable in CD patients. Intestinal and mesenteric T cell infiltration, vasculitis, T helper 1 cytokine production, and fulminant bowel inflammation were characteristic hallmarks of disease progression. Immune-mediated damage to enteric glia therefore may participate in the initiation and/or the progression of human inflammatory bowel disease.
National Acad Sciences