机构：[1]Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China,[2]Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China,首都医科大学附属天坛医院[3]Shanxi University of Traditional Chinese Medicine, Taiyuan, China,[4]Department of Neurology, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ, United States
Astrocyte loss induced by neuromyelitis optica (NMO)-IgG and complement-dependent cytotoxicity (CDC) is the hallmark of NMO pathology. The survival of astrocytes is thought to reflect astrocyte exposure to environmental factors in the CNS and the response of astrocytes to these factors. However, still unclear are how astrocytes respond to NMO-IgG and CDC, and what CNS environmental factors may impact the survival of astrocytes. In a murine model of NMO induced by intracerebral injection of NMO-IgG and human complement, we found dramatic upregulation of IL-15 in astrocytes. To study the role of astrocytic IL-15 in NMO, we generated a transgenic mouse line with targeted expression of IL-15 in astrocytes (IL-15(tg)), in which the expression of IL-15 is controlled by a glial fibrillary acidic protein promoter. We showed that astrocyte-targeted expression of IL-15 attenuates astrocyte injury and the loss of aquaporin-4 in the brain. Reduced blood-brain barrier leakage and immune cell infiltration are also found in the lesion of IL-15(tg) mice subjected to NMO induction. IL-15(tg) astrocytes are less susceptible to NMO-IgG-mediated CDC than their wild-type counterparts. The enhanced resistance of IL-15(tg) astrocytes to cytotoxicity and cell death involves NF-kappa B signaling pathway. Our findings suggest that IL-15 reduces astrocyte loss and NMO pathology.
基金：
National Science Foundation of ChinaNational Natural Science Foundation of China [91642205, 81471535, 81701176]; Science and Technology Development Fund of Tianjin Education Commission for higher Education [2016YD04]; National Multiple Sclerosis SocietyNational Multiple Sclerosis Society [RG-1507-05318]
第一作者机构：[1]Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China,[2]Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China,
通讯作者：
通讯机构：[1]Department of Neurology, Tianjin Neurological Institute, Tianjin Medical University General Hospital, Tianjin, China,[2]Center for Neuroinflammation, Beijing Tiantan Hospital, Capital Medical University, Beijing, China,
推荐引用方式(GB/T 7714)：
Li Zhiguo,Han Jinrui,Ren Honglei,et al.Astrocytic Interleukin-15 Reduces Pathology of Neuromyelitis Optica in Mice[J].FRONTIERS IN IMMUNOLOGY.2018,9(MAR):-.doi:10.3389/fimmu.2018.00523.
APA：
Li, Zhiguo,Han, Jinrui,Ren, Honglei,Ma, Cun-Gen,Shi, Fu-Dong...&Li, Minshu.(2018).Astrocytic Interleukin-15 Reduces Pathology of Neuromyelitis Optica in Mice.FRONTIERS IN IMMUNOLOGY,9,(MAR)
MLA：
Li, Zhiguo,et al."Astrocytic Interleukin-15 Reduces Pathology of Neuromyelitis Optica in Mice".FRONTIERS IN IMMUNOLOGY 9..MAR(2018):-
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