Abstract:
BACKGROUND:Mouse experimental autoimmune encephalomyelitis (EAE) is widely used model of multiple sclerosis (MS). The role of autoreactive CD4+ and CD8+ T cells in the development of mouse EAE has been demonstrated. However, little information is available about the relation between the frequency and reactivity of myelin antigen-reactive CD4+ and CD8+ T cells in secondary lymphoid organs and their relevance with the inflammation and pathological lesion of CNS during the course of EAE mouse model. METHODS:In this study, an EAE model with a clinical course containing acute onset, peak and chronic remission stages was established in C57BL/6J mice by myelin oligodendrocyte protein (MOG)35-55 peptide immunization, and followed by the monitoring of clinical and pathological parameters and autoreactive T cells at different stages during the course. RESULTS:The dynamic changes of inflammatory infiltration, myelin loss, and astrocyte proliferation in brain and spinal cord were highly consistent with clinical severity observed in EAE course. However, the frequencies of both MOG-specific CD4+ and CD8+ T cells in secondary lymphoid organs presented different dynamic trends from the IFN-γ production by MOG-reactive T cells. Meanwhile, the IL-17 production by MOG-reactive CD4+ T cells was consistent with the proliferation of MOG-specific CD4+ T cells. CONCLUSIONS:Both CD4+ and CD8+ T cells were most sensitive to MOG antigen stimulation for IFN-γ production during the early stage of EAE, but then rapidly lost the function despite their vigorous proliferation at the peak stage and later.
journal_name
Immunol Investjournal_title
Immunological investigationsauthors
Wan X,Pei W,Zhang Y,Zhang L,Shahzad KA,Xu T,Shen Cdoi
10.1080/08820139.2017.1367008subject
Has Abstractpub_date
2018-01-01 00:00:00pages
1-17issue
1eissn
0882-0139issn
1532-4311journal_volume
47pub_type
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