Pathogenesis of MHV-induced demyelination

描述(申请人提供)：C57B1/6(B6)小鼠感染小鼠 肝炎病毒JHM株(MHV)发展为急性脑炎或 慢性脱髓鞘疾病。这种脱髓鞘疾病是 人类疾病多发性硬化症。我们对免疫学很感兴趣 在这个模型中，脱髓鞘的介体。在我们的模型中，一定比例的小鼠 母源抗体预防急性脑炎的研究进展 我们以前在这个模型中观察到的脱髓鞘疾病 脱髓鞘，大约20%的淋巴细胞渗入 中枢神经系统是B细胞，尽管在这些小鼠中没有检测到血清抗体。 此外，裸鼠还会患上一种脱髓鞘疾病 中枢神经系统中70%的淋巴细胞是B细胞。这些B细胞的功能 还没有被描述出来。为了研究这些细胞在 脱髓鞘，将追求三个具体目标：1)表征 MHV感染中枢神经系统中B细胞反应的性质；2)调查 慢性脱髓鞘疾病的抗体产生失败；以及3) 确定MHV-JHM病在裸鼠体内的免疫效应。

DESCRIPTION (provided by applicant): C57B1/6 (B6) mice infected with mouse hepatitis virus, strain JHM (MHV) develop either an acute encephalitis or chronic demyelinating disease. This demyelinating disease is a model for the human disease multiple sclerosis. We are interested in the immunological mediators of demyelination in this model. In our model, a percentage of mice protected from the acute encephalitis by maternal antibody develop a demyelinating disease We have previously observed in this model of demyelination that roughly twenty percent of the lymphocytes infiltrating the CNS are B cells, although no serum antibody can be measured in these mice. Additionally, nude (athymic) mice develop a demyelinating disease in which some 70 percent of lymphocytes in the CNS are B cells. The function of these B cells has not been characterized. In order to investigate the role of these cells in demyelination, three specific aims will be pursued: 1) To characterize the nature of the B cell response in the MHV-infected CNS; 2) To investigate failure of antibody production in the chronic demyelinating disease; and 3) To determine the immunological effectors of MHV-JHM disease in nude mice.