A novel and efficient regimen for producing chronic relapsing experimental autoimmune encephalomyelitis (CR‐EAE) in SJL mice

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Abstract
We report that SJL mice developed chronic relapsing experimental autoimmune encephalomyelitis (CR-EAE) when injected with a mixture of mouse spinal cord homogenate (MSCH), killed mycobacteria tuberculosis (M. tb), and mycobacteria butyricum (M. b) in PBS 2 months before a conventional acute experimental autoimmune encephalomyelitis (EAE) induction injection. The altered progression of the disease involved an accelerated but less severe acute attack and development of a chronic course with relapsing-remitting episodes. Histological examination revealed inflammatory cell infiltration and demyelination in the brain. The dose of neuroantigen as well as the anatomical sites of injections were found to be crucial for the development of the disease.