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Falcon® Pipet Controller US Version with two 0.2µm and two 0.45µm Filters, 2-Position Charging Stand, Universal Power Supply, Battery (Set of 3)

Company: Corning
Catalog#: 357471
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Differentiation of Myeloid-derived Suppressor Cells from Murine Bone Marrow and Their Co-culture with Splenic Dendritic Cells
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Date:
2017-09-20
[Abstract]  Myeloid-derived suppressor cells (MDSCs) possess the ability to suppress the immune response, and to amplify the regulatory properties of other immune cells, i.e., dendritic cells. Here we describe a protocol in which MDSCs were differentiated from murine bone marrow cells, and CD11c+ dendritic cells were purified from murine spleens. MDSCs and CD11c dendritic cells can be co-cultured and the immunoregulatory phenotype of the MDSCs-conditioned dendritic cells could be assessed by means of a specific functional in vivo experiment, i.e., a skin test as a measure of the delayed-type hypersensitivity reaction toward a poorly immunogenic antigen. [摘要]  骨髓来源的抑制细胞(MDSCs)具有抑制免疫应答的能力,并扩增其他免疫细胞即树突状细胞的调节特性。 在这里,我们描述了MDSC与鼠骨髓细胞分化的方案,并且从鼠脾中纯化CD11c +树突状细胞。 可以共培养MDSC和CD11c树突状细胞,并且可以通过特定的功能体内实验来评估MDSCs条件树突细胞的免疫调节表型,即皮肤试验作为延迟型超敏反应的量度 抗免疫原性较差的抗原。
【背景】骨髓来源的抑制细胞(MDSCs)是由早期分化阶段的巨噬细胞,粒细胞,树突状细胞和骨髓细胞的前体组成的骨髓细胞组(Youn等人,2008),其在肿瘤的淋巴组织中大量积累感染性小鼠以及感染性疾病,败血症和创伤的小鼠。这些细胞的主要特征是它们以Ag特异性和/或非特异性方式抑制T细胞应答的能力。这些细胞现在被认为是负责肿瘤相关免疫缺陷的主要细胞类型之一;涉及MDSC介导的免疫抑制的主要因素包括Arg1的高表达(Marvel和Gabrilovich,2015)。精氨酸酶1(Arg1)和吲哚胺2,3-双加氧酶1(IDO1)分别是催化L-精氨酸(L-Arg)和L-色氨酸(L-Trp)降解的免疫调节酶,导致局部氨基酸剥夺。此外,与Arg1不同,IDO1在树突细胞(DC)中也具有非酶信号传导活性(Mondanelli等,2017)。除了其固有的免疫抑制活性外,MDSC还可能扩增其他免疫细胞的调节特性,特别是在肿瘤微环境中。虽然建立了MDSC-巨噬细胞相互作用的一些机制(Ugel等,2015),MDSCs和DCs之间的串扰仍然不清楚(Ostrand-Rosenberg等,2012);为弥补这一差距,我们已经制定了该方案,并且我们证明了Arg1 ...

EAE Induction by Passive Transfer of MOG-specific CD4+ T Cells
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Date:
2017-07-05
[Abstract]  Experimental autoimmune encephalomyelitis (EAE) is an animal model of multiple sclerosis (MS), which is a chronic inflammatory disease of the central nervous system (CNS). It is characterized by focal demyelination and inflammatory responses mediated by myelin-specific autoreactive CD4+ T cells. Using a passive transfer model of EAE in mice, we have demonstrated that regional specific neural signals by sensory-sympathetic communications create gateways for immune cells at specific blood vessels of the CNS, a phenomenon known as the gateway reflex (Arima et al., 2012; Tracey, 2012; Arima et al., 2013; Sabharwal et al., 2014; Arima et al., 2015b). Here we describe protocols for passive transfer model of EAE using freshly isolated (MOG)-specific ... [摘要]  实验性自身免疫性脑脊髓炎(EAE)是多发性硬化症(MS)的动物模型,其是中枢神经系统(CNS)的慢性炎性疾病。其特征在于由髓磷脂特异性自身反应性CD4 + T细胞介导的局灶性脱髓鞘和炎症反应。在小鼠中使用EAE的被动转移模型,我们已经证明,通过感觉交感通信的区域特异性神经信号在CNS的特定血管上产生免疫细胞的网关,这被称为网关反射(Arima等, ,2012; Tracey,2012; Arima等人,2013; Sabharwal等人,2014; Arima等人。 >,2015b)。在这里,我们描述了使用新鲜分离的(MOG)特异性CD4 + T细胞或周期性再刺激的MOG特异性CD4 + T细胞系的EAE的被动转移模型的方案,其是适用于体内追踪致病性CD4 T细胞,特别是CNS(Ogura等人,2008; Arima等人) 。,2012和2015b)。
【背景】广泛接受的是,自身反应性CD4 + T细胞在MS和EAE的发病机理中起重要作用(Reboldi,2009; International Multiple Sclerosis Genetics,et al。,2011; Steinman,2014),它们是CNS的慢性炎性疾病。 ...

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