5). Taken together, these HM781-36B data suggest that astrocytes might be able to develop into antigen-presenting cells during the late phase of EAE, thereby contributing to lymphocyte-mediated disease pathogenesis and resulting in severe presentation

of disease. CNS factors have been shown to contribute equally (with immune cells) to MS disease progression [4]. Data presented in this report demonstrate that astrocytes act both as suppressors and promoters of MOG35–55-specific lymphocyte responses; these are associated closely with the disease stage and the local microenvironment. Therefore, targeting of astrocytes during the optimal time-points in the course of disease progression may be used to develop novel EAE therapeutic strategies. This research was supported by the Master Innovation Research Foundation of Hei Longjiang Province (YJSCX2011-325HLJ), the Natural Science Foundation for Youth of China (30901330; 81000512; 81100883), the Natural Science Foundation of China (81171121), the Doctoral Fund of the Ministry of Education of China (20102307110013) and Open project of key laboratory of Myocardical Ischemia Mechanism and Treatment (KF201013). The authors have declared that no competing

interests exist. “
“Acute graft versus host disease (aGVHD) remains a life-threatening complication of bone marrow transplantation. Here we show that IL-27, a member of the IL-12 cytokine family, plays an essential role in a parent-to-F1 murine aGVHD model, using B6 mice as parents and B6D2 mice as F1 recipients. IL-27 is transiently detectable PF-02341066 manufacturer in the serum

of B6D2 recipients of B6 spleen cells, with a peak at day 10. Treatment with anti-IL-27p28 mAb MM27.7B1 (αp28Ab), at the time of and six days after B6 cell transfer, Adenosine triphosphate blocked GVHD. Protection was associated with host cell survival and undiminished engraftment of donor cells, lack of host B-cell depletion, increased Th2-type immunoglobulin production, a decrease in serum IFN-γ, a drop in anti-H-2Dd cytotoxic T lymphocyte activity and an increase in Foxp3+ T cells. We therefore conclude that IL-27 plays a critical role in the parent-to-F1 model of aGVHD and that blocking IL-27 could have therapeutic relevance. “
“According to the hygiene hypothesis, the increased incidence of allergic and autoimmune diseases in developed countries is mainly explained by the decreased contact between the human population and certain environmental agents as lactobacillus, mycobacteria and helminths. In this study, we evaluated the effect of multiple infections with Strongyloides venezuelensis on the development of experimental autoimmune encephalomyelitis (EAE) in Lewis rats. Multiple infections before EAE induction were not able to change the evolution of the disease. No alterations were observed in weight loss, clinical score and inflammation intensity at the central nervous system. The presence of significant levels of parasite-specific IgG1 but not IgG2b suggested a Th2 polarization.