2D-immunomics may be useful in the identification of autoantigens in neurological autoimmune diseases, but its application may be limited by denaturation of target proteins. Here we compared the capacity of a single or multiple antigens to elicit autoantibodies targeting multiple neural autoantigens by ELISA and 2D-immunomics. We induced experimental autoimmune encephalomyelitis (EAE) with MBP peptide(89-104), total MBP or spinal cord homogenate. Both techniques showed anti-MBP IgG only after immunization with total MBP. In addition, 2D-immunomics revealed the presence in EAE mice of autoantibodies targeting other neural proteins, some displaying partial sequence homology with MBP. The present finding by 2D-immunomics of multiple neural proteins targeted by autoantibodies generated by a single antigen may help to explain the complex autoimmune response observed in multiple sclerosis.

2D immunomic approach for the study of IgG autoantibodies in the experimental model of multiple sclerosis.

FARINAZZO, Alessia;GINI, Beatrice;MARCONI, Silvia;TURANO, Ermanna;ANGHILERI, Elena;CECCONI, Daniela;BONETTI, Bruno
2011

Abstract

2D-immunomics may be useful in the identification of autoantigens in neurological autoimmune diseases, but its application may be limited by denaturation of target proteins. Here we compared the capacity of a single or multiple antigens to elicit autoantibodies targeting multiple neural autoantigens by ELISA and 2D-immunomics. We induced experimental autoimmune encephalomyelitis (EAE) with MBP peptide(89-104), total MBP or spinal cord homogenate. Both techniques showed anti-MBP IgG only after immunization with total MBP. In addition, 2D-immunomics revealed the presence in EAE mice of autoantibodies targeting other neural proteins, some displaying partial sequence homology with MBP. The present finding by 2D-immunomics of multiple neural proteins targeted by autoantibodies generated by a single antigen may help to explain the complex autoimmune response observed in multiple sclerosis.
Immunomics; 2D-PAGE; Autoantibodies; Molecular mimicry; Experimental autoimmune encephalomyelitis; ELISA
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11562/346487
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