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EMD Millipore Millex Sterile Syringe PVDF Filter Pore size: 0.22 μm

Company: Thermo Fisher Scientific
Catalog#: SLGV033RS
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Mouse Model of Immune Complex-mediated Vasculitis in Dorsal Skin and Assessment of the Neutrophil-mediated Tissue Damage
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Date:
2017-12-20
[Abstract]  Neutrophils are the most abundant leukocytes in the blood. In the recent decades, their crucial roles in host defense, immune regulation and tissue damage have been studied in a deeper dimension. In this protocol, we described a mouse model of immune complex-mediated vasculitis in the dorsal skin induced by Arthus reaction, and the subsequent analysis of edema, hemorrhage and tissue damage due to neutrophil activation by means of Evans blue area analysis, histology, and immunofluorescence. This protocol could facilitate the investigation of cellular therapy strategy against over-activated neutrophil-mediated tissue damage. [摘要]  嗜中性粒细胞是血液中最丰富的白细胞。 近几十年来,它们在宿主防御,免疫调节和组织损伤方面的关键作用已经得到了更深入的研究。 在这个协议中,我们描述了Arthus反应诱导的背部皮肤中的免疫复合物介导的血管炎的小鼠模型,以及随后通过伊文思蓝区域分析,组织学和分析由于嗜中性粒细胞活化引起的水肿,出血和组织损伤免疫荧光。 该协议可以促进细胞治疗策略对过度活化的嗜中性粒细胞介导的组织损伤的调查。

【背景】嗜中性粒细胞构成循环白细胞的最大的进化保守部分。他们引导第一波主机防御感染或组织损伤。嗜中性粒细胞介导的细胞毒性的体外模型已被充分证实(Incani等人,1981; Dallegri等人,1984; Saffarzadeh等人,等人,2012年)。但是,为了剖析中性粒细胞介导的无菌组织损伤的复杂性,“体内”模型是必不可少的。

免疫复合物(IC)介导的血管炎是由抗原 - 抗体复合物在血管中沉积引发的疾病,其随后导致补体激活,嗜中性粒细胞募集和活化。活化的嗜中性粒细胞释放的大量活性氧和蛋白酶损害血管壁的内皮衬里并导致水肿和出血(Sindrilaru等人,2007; Goerge等人, ,2008; ...

Organotypic Brain Cultures: A Framework for Studying CNS Infection by Neurotropic Viruses and Screening Antiviral Drugs
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Date:
2017-11-20
[Abstract]  According to the World Health Organization (WHO), at least 50% of emerging viruses endowed with pathogenicity in humans can infect the Central Nervous System (CNS) with induction of encephalitis and other neurologic diseases (Taylor et al., 2001; Olival and Daszak, 2005). While neurological diseases are progressively documented, the underlying cellular and molecular mechanisms involved in virus infection and dissemination within the CNS are still poorly understood (Swanson and McGavern, 2015; Ludlow et al., 2016). For example, measles virus (MeV) can infect neural cells, and cause a persistent brain infections leading to lethal encephalitis from several months to years after primary infection with no available treatment (Reuter and Schneider-Schaulies, 2010; Laksono et ... [摘要]  根据世界卫生组织(WHO)的统计,至少有50%的新发病毒具有致病性,可感染中枢神经系统(CNS),并诱发脑炎和其他神经系统疾病(Taylor et al。 >,2001; Olival和Daszak,2005)。虽然神经系统疾病逐渐被记录下来,但涉及病毒感染和在CNS内传播的潜在细胞和分子机制仍然知之甚少(Swanson and McGavern,2015; Ludlow等人,2016)。例如,麻疹病毒(MeV)可以感染神经细胞,并在原发感染后几个月至数年导致持续的脑感染,导致致死性脑炎,而没有可用的治疗(Reuter和Schneider-Schaulies,2010; Laksono等人。,2016)。器官型脑文化(OBC)是病毒学领域的一个合适的模型,以更好地理解中枢神经系统感染。实际上,它不仅可以研究中枢神经系统内嗜神经病毒的感染和传播,而且还可以作为创新性抗病毒策略或分子的筛选模型,如我们最近发表的有关融合抑制肽和HSP90伴侣蛋白活性抑制剂的研究, 17-DMAG(Welsch等人,2013; ...

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