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Pubmed ID :28620692
Publication Date : //

The enteric nervous system is a potential autoimmune target in multiple sclerosis.


Multiple sclerosis (MS) is a chronic autoimmune disease of the central nervous system (CNS) in young adults that has serious negative socioeconomic effects. In addition to symptoms caused by CNS pathology, the majority of MS patients frequently exhibit gastrointestinal dysfunction, which was previously either explained by the presence of spinal cord lesions or not directly linked to the autoimmune etiology of the disease. Here, we studied the enteric nervous system (ENS) in a B cell- and antibody-dependent mouse model of MS by immunohistochemistry and electron microscopy at different stages of the disease. ENS degeneration was evident prior to the development of CNS lesions and the onset of neurological deficits in mice. The pathology was antibody mediated and caused a significant decrease in gastrointestinal motility, which was associated with ENS gliosis and neuronal loss. We identified autoantibodies against four potential target antigens derived from enteric glia and/or neurons by immunoprecipitation and mass spectrometry. Antibodies against three of the target antigens were also present in the plasma of MS patients as confirmed by ELISA. The analysis of human colon resectates provided evidence of gliosis and ENS degeneration in MS patients compared to non-MS controls. For the first time, this study establishes a pathomechanistic link between the well-established autoimmune attack on the CNS and ENS pathology in MS, which might provide a paradigm shift in our current understanding of the immunopathogenesis of the disease with broad diagnostic and therapeutic implications.

Authors : Wunsch Marie , Jabari Samir , Voussen Barbara , Enders Michael , Srinivasan Shanthi , Cossais François , Wedel Thilo , Boettner Martina , Schwarz Anna , Weyer Linda , Göcer Oktay , Schroeter Michael , Maeurer Mathias , Woenckhaus Matthias , Pollok Karolin , Radbruch Helena , Klotz Luisa , Scholz Claus-Jürgen , Nickel Joachim , Friebe Andreas , Addicks Klaus , Ergün Süleyman , Lehmann Paul V , Kuerten Stefanie ,

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