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C57BL\/6 female mice were infected with<jats:italic>S. aureus<\/jats:italic>ATCC 51650, which produces toxic shock syndrome toxin 1 (TSST-1+) or<jats:italic>S. aureus<\/jats:italic>ATCC 43300, which does not produce toxins (TOX-). Three days later, the animals were subjected to EAE induction by immunization with myelin oligodendrocyte glycoprotein (MOG). The weight variation, disease incidence and clinical score were recorded daily. Cytokines and Foxp3+ regulatory T cells in the brain were evaluated during the acute disease phase. Cytokines and Foxp3+ regulatory T cells in the spleen and histopathological analysis of the CNS were assessed during the chronic stage.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Previous infection with both strains similarly decreased the clinical score; however, only the TSST-1+ strain clearly diminished inflammation in the CNS. The infections also modulated cytokine production in the spleen and CNS. Reduced production of IL-5 and IL-10 was detected in MOG-stimulated spleen cultures in the TOX- and TSST-1+ infected groups, respectively. In<jats:italic>S. aureus<\/jats:italic>stimulated cultures, there was an increased production of IFN-\u03b3 and IL-10 in both infected groups and an increased level of IL-5 in the TSST-1+ group. CNS infiltrating cell cultures from previously infected mice produced less IL-17 in response to MOG and more IFN-\u03b3 in response to<jats:italic>S. aureus<\/jats:italic>stimulation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>These results indicated that both strains attenuated clinical EAE manifestations, but only TSST-1 clearly decreased CNS inflammation.<\/jats:p><\/jats:sec>","DOI":"10.1186\/1471-2202-15-8","type":"journal-article","created":{"date-parts":[[2014,1,9]],"date-time":"2014-01-09T02:02:51Z","timestamp":1389232971000},"update-policy":"http:\/\/dx.doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Previous infection with Staphylococcus aureusstrains attenuated experimental encephalomyelitis"],"prefix":"10.1186","volume":"15","author":[{"given":"Thais Graziela Doneg\u00e1","family":"Fran\u00e7a","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Fernanda","family":"Chiuso-Minicucci","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sofia Fernanda Gon\u00e7alves","family":"Zorzella-Pezavento","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Larissa Lumi Watanabe","family":"Ishikawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Larissa Camargo","family":"da Rosa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Priscila Maria","family":"Colavite","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Camila","family":"Marques","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maura Rosane Val\u00e9rio","family":"Ikoma","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maria de Lourdes Ribeiro de Souza","family":"da Cunha","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alexandrina","family":"Sartori","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2014,1,9]]},"reference":[{"key":"3459_CR1","doi-asserted-by":"publisher","first-page":"397","DOI":"10.1177\/1352458510391343","volume":"17","author":"MR Mulvey","year":"2011","unstructured":"Mulvey MR, Doupe M, Prout M, Leong C, Hizon R, Grossberndt A, et al: Staphylococcus aureus harbouring Enterotoxin A as a possible risk factor for multiple sclerosis exacerbations. 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