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Glass slides (75 mm x 25 mm)

公司名称: Thermo Fisher Scientific
产品编号: 421-004T
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Characterization of Immunological Niches within Peyer’s Patches by ex vivo Photoactivation and Flow Cytometry Analysis
Author:
Date:
2020-03-20
[Abstract]  T follicular helper (Tfh) cells regulate B cell selection for entry into the germinal center (GC) reaction or for differentiation into antibody forming cells. This process takes place at the border between the T and B zones in lymphoid organs and involves physical contacts between T and B cells. During these interactions, T cells endow the B cells with selection signals that promote GC seeding or plasmablast differentiation based on their B cell receptor affinity. In Peyer’s patches (PPs), T cells promote B cell colonization of the subepithelial dome (SED) without effective affinity-based ... [摘要]  [摘要] T卵泡辅助细胞(Tfh )调节B细胞的选择,使其进入生发中心(GC)反应或分化为抗体形成细胞。此过程发生在淋巴器官的T和B区之间的边界,涉及T和B细胞之间的物理接触。在这些相互作用中,T细胞赋予B细胞选择信号,这些信号根据其B细胞受体亲和力促进GC接种或成浆细胞分化。在Peyer氏斑(PPs)中,T细胞在没有有效亲和力的情况下促进上皮下穹sub (SED)的B细胞定殖。 ed克隆选择。为了具体表征驻留在SED利基空间中的T细胞群体,我们按照本方案中所述对SED隔室进行了离体光激活,然后进行了标记细胞的流式细胞仪分析。该技术将空间和细胞信息整合到了免疫小生境研究中,可以适应各种实验系统。

【背景技术】亲和力成熟是血清抗体对特定抗原的亲和力随时间而增加的过程,这是通过在生发中心(GC)中选择带有高亲和力BCR的B细胞来实现的。增加抗体亲和力通过体细胞超突变和基于亲和力的选择,这由T滤泡辅助(编排的处理的反复循环介导的TFH )细胞奥普雷亚;(开普勒和Perelson,1993 和Perelson,1997; Victora和Nussenzweig, 2012)。GC由两个微观解剖部位组成;暗区(B细胞增殖并获得体细胞超突变)和亮区(B细胞与相关抗原和T细胞相互作用)。尽管活体成像技术能够确定GC中的免疫细胞动力学(Allen 等,2007; ...

Live Imaging of Myogenesis in Indirect Flight Muscles in Drosophila
Author:
Date:
2017-07-05
[Abstract]  The indirect flight muscles (IFMs) are the largest muscles in the fly, making up the bulk of the adult thorax. IFMs in Drosophila are generated during pupariation by fusion of hundreds of muscle precursor cells (myoblasts) with larval muscle templates (myotubes). Prominent features, including the large number of fusion events, the structural similarity to vertebrate muscles, and the amenability to the powerful genetic techniques of the Drosophila system make the IFMs an attractive system to study muscle cell fusion. Here we describe methods for live imaging of IFMs, both in ... [摘要]  间接飞行肌肉(IFM)是飞行中最大的肌肉,构成成年胸部的大部分。 通过将数百种肌肉前体细胞(成肌细胞)与幼虫肌肉模板(肌管)融合,在果蝇中产生IFMs 。 突出的特征,包括大量的融合事件,与脊椎动物肌肉的结构相似性,以及对果蝇系统强大的遗传技术的适应性使得IFM成为研究肌肉细胞融合的有吸引力的系统。 在这里,我们描述了在完整的蛹中和在离体的独立的IFM中实时成像IFM的方法。 (Segal等人,2016年)在手稿中使用了这里阐述的方案。
【背景】胚胎肌肉长期以来一直是肌肉发育研究的建立模型系统(Volk,1999; Chen和Olson,2004; Abmayr等人,2008; Richardson pup biological(Dutta,2006; Oas等人,2014; Weitkunat等人,2014; Shwartz等人,2016) ...

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