IL10 and myeloid sarcoma: In line with the latter, regulatory T (Treg) cells producing IL-10 have been detected in the MS CSF (Feger et al., 2007) although deficits of their regulatory functions and migratory properties have also been reported in MS (Viglietta et al., 2004; Astier et al., 2006; Martinez-Forero et al., 2008; Venken et al., 2008; Schneider-Hohendorf et al., 2010).