Name: induction of experimental autoimmune encephalomyelitis in mice and evaluation of the disease-dependent distribution of immune cells in various tissues
Uploaded: 2016-05-08T14:00:00
Description: Watch this Scientific Journal Video about Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues at JoVE

This work was supported by the Else Kr&#246;ner-Fresenius Foundation (EKFS) Research Training Group Translational Research Innovation - Pharma (TRIP) and by the "Landesoffensive zur Entwicklung wissenschaftlich-&#246;konomischer Exzellenz (LOEWE), Schwerpunkt: Anwendungsorientierte Arzneimittelforschung" of the State of Hesse.

道德守则：我们的实验过程由Regierungspräsidium达姆施塔特（德国）的伦理委员会批准并确认国家和欧洲法规。所有作出了努力，以尽量减少动物的痛苦，减少使用动物的数量。 1. EAE模型<ol><li> EAE模型的感应<ol><li>使用10至13周龄的雌性129S4 / SvJae×C57BL / 6小鼠为EAE的诱导。 </li><li>给小鼠皮下注射，到上部和下背部，所述致脑炎MOG 35 - 55（髓鞘少突胶质糖蛋白）的肽（200?...

这里所描述的EAE模型得到最多关注，MS的模式，并在测试的治疗策略为MS 32是经常使用。鼠标疾病具有MS的许多临床和组织学特征，是由自身免疫诱导神经元抗原引起的。致敏髓鞘抗原与血脑屏障功能障碍，因此，免疫细胞浸润到中枢神经系统有关。我们的研究结果显示，免疫细胞在急性期淋巴结瞬时增加。脾T细胞和B细胞减少的疾病的临床前阶段。在循环血液，T细胞，B细胞，树突细胞和?...

多发性硬化症（MS）及其相应的动物模型，实验性自身免疫性脑脊髓炎（EAE），显示出在中枢神经系统（CNS）的自身免疫性神经炎症的变化。早期主动MS和EAE的病变被浸润免疫细胞的存在表征。 MS的病因至今不明，但市场普遍认为涉及髓鞘由自身反应性T细胞介导的​​破坏。这些自身反应性T细胞分泌促炎性细胞因子和趋化因子，以吸引其他免疫细胞诸如B细胞，单核细胞和嗜中性粒细胞从循环。单核细胞分化成巨噬细胞。由自身反应性T细胞分泌干扰素γ（IFNγ）的极化将巨噬细胞促炎巨噬细胞。促进少突胶质细胞的细胞凋亡的促炎性巨噬细胞释放细胞因子和活性氧。少突胶质细胞的死亡导致脱髓鞘。此外，B细胞分化为plasma细胞和针对髓鞘释放的自身抗体，最终导致髓鞘退化。髓鞘的丧失导致轴突和神经元的退化和由此在CNS代表MS 1的主要特征的病变部位的形成。在外围，T细胞和B细胞中的淋巴结被激活，它们在脾增殖并通过循环迁移到中枢神经系统。单核细胞和嗜中性粒细胞增殖的骨髓和也通过循环迁移到中枢神经系统。 从骨髓，脾和淋巴结进入血液或从血流进入CNS白细胞外渗是一个多步骤的过程，依赖于几个因素，包括白细胞和内皮趋化因子和趋化因子受体介导的分子间的相互作用。由各种细胞类型产生的趋化因子可免疫reactio期间被诱导通过像肿瘤坏死因子α（TNFα），IFNγ和白细胞介素-6（IL-6），随后募集免疫细胞炎症2,3的部位的细胞因子Ñ。免疫细胞呈现在其表面上的趋化因子受体的子集，这取决于细胞类型和迁移途径的炎症部位。因此，CXCR2，CCR1和CXCR1是在骨髓和血液4成熟嗜中性粒细胞中表达，和它的配体，CXCL2，CCL5或CXCL6结合，分别激活嗜中性粒细胞，并促进其粘附到内皮和随后的细胞的迁移进入组织5-9。 CCL2和CCL20吸引单核细胞和Th1 / Th17细胞10，其分别表示CCR2 11和CCR6 12。 CCR1和CCR5，通过不同的细胞类型，包括T细胞，单核细胞和巨噬细胞13表示，结合CCL3，CCL5和CCL7和MS 14期间上调。 CXCR3表达于T细胞结合CCL9，CCL10和CCL11 15。 以MS治疗的一个主要策略是免疫细胞的耗竭或预防免疫细胞浸润进入CNS。因此，具体的趋化因子受体的阻断已经在EAE影响。拮抗或CCR1 16，CCR2 17的基因缺失，CCR7 18或CXCR2 19降低EAE病理学，而拮抗或CCR1 20的基因缺失，CCR5 20或CXCR3 21没有降低的病理学。因此，具体的趋化因子受体的白细胞上表达为后者的浸润进入CNS关键和决定EAE的过程。 免疫细胞的耗竭为MS患者的有效治疗策略，因为渗透免疫细胞释放细胞因子，如TNFα，IL-6和IL-1β，这反过来，促进炎症过程或神经元22的降解。此外，自动反应性Th1细胞释放IFNγ，这反过来又刺激巨噬细胞释放的TNFα，IL-1β和IL-23。 这个手稿描述的EAE，免疫细胞分布以及在EAE小鼠的各种组织中的细胞因子水平（mRNA）的测定的诱导。细胞在不同时间点的疾病过程中被分离，以提供所述炎性过程并最终导致在CNS损伤形成的时间依赖性的概述。

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induction of experimental autoimmune encephalomyelitis in mice and evaluation of the disease-dependent distribution of immune cells in various tissues

多发性硬化症是推定为炎症性自身免疫疾病，它在中枢神经系统（CNS），导致认知和运动功能障碍的特征是病变的形成。实验性自身免疫性脑脊髓炎（EAE）是MS的有用的动物模型，是因为它的特征还在于通过损伤形成在CNS，运动功能障碍，并且也由自身免疫和炎性反应驱动。一项所述的EAE模型被诱导与来自髓鞘少突胶质蛋白（MOG）35-55小鼠衍生的肽。在EAE小鼠制定一个渐进的病程。这当然分为三个阶段：临床前阶段（第0天 - 9），疾病发作（10天 - 11）和急性期（12天 - 14）。 MS和EAE是由渗透到中枢神经系统自身反应性T细胞诱导。这些T细胞分泌趋化因子和细胞因子而导致进一步的免疫细胞的募集。因此，在脊髓D中的免疫细胞的分布uring这三种疾病的阶段进行了研究。以突出的T细胞，B细胞和单核细胞的活化/增殖/累积开始时的疾病的时间点，在淋巴结，脾和血液中的免疫细胞的分布也被评估。此外，一些细胞因子（IL-1β，IL-6，IL-23，TNFα，IFNγ）的三种疾病相的水平进行测定，以深入了解该疾病的炎性过程。最后，该数据提供了免疫细胞的EAE病理过程中的功能信息的概述。

图1给出了本文中介绍的不同方法的示意图1）小鼠接受MOG 35-55抗原注射后10.7±0.3天28开发初期临床症状。 EAE小鼠的代表性疾病过程示于图1。2）各种组织（脾，淋巴结，脊髓）和血液从在不同时间点的控制和EAE小鼠中的临床前阶段（第2天，4天萃取6天），该疾病的发病过程中（10天）和在疾病（12天，14天?...

Watch this Scientific Journal Video about Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues at JoVE

Induction of Experimental Autoimmune Encephalomyelitis in Mice and Evaluation of the Disease-dependent Distribution of Immune Cells in Various Tissues

This manuscript describes the methods for induction and scoring of the experimental autoimmune encephalomyelitis (EAE) model, together with the assessment of immune cell distribution and mRNA cytokine levels in lymph nodes, spleen, blood and spinal cord using flow cytometry and quantitative PCR, respectively, at various disease phases.

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Preparation of Mouse Pituitary Immunogen for the Induction of Experimental Autoimmune Hypophysitis

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在实验性自身免疫性脑脊髓炎（EAE）抗性品系小鼠继转移和抗原挑战克服反应迟钝

Experimental autoimmune encephalomyelitis (EAE) is an inflammatory disease of the central nervous system (CNS) and has been used as an animal model for ...

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Drug-induced autoimmune hepatitis (DIH) is the most common hepatic drug-induced hypersensitization process observed in approximately 9 to 12% of patients ...

Visualizing Impairment of the Endothelial and Glial Barriers of the Neurovascular Unit during Experimental Autoimmune Encephalomyelitis In Vivo

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The central nervous system (CNS) is comprised of the brain and spinal cord and is enveloped by the meninges, membranous layers serving as a barrier ...