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Goat α-rat IgG

Company: Thermo Fisher Scientific
Catalog#: A-11006
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Estimation of the Minimum Number of Replication Origins Per Chromosome in any Organism
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Date:
2020-10-20
[Abstract]  Eukaryote nuclear genomes predominantly replicate through multiple replication origins. The number of replication origins activated per chromosome during the S-phase duration may vary according to many factors, but the predominant one is replication stress. Several studies have applied different approaches to estimate the number and map the positions of the replication origins in various organisms. However, without a parameter to restrict the minimum of necessary origins, less sensitive techniques may suggest conflicting results. The estimation of the minimum number of replication origins (MO) per chromosome is an innovative method that allows the establishment of a threshold, which serves as a parameter for genomic approaches that map origins. For this, the MO can be easily ... [摘要]  [摘要] 比率可能因多种因素而变化,但最主要的因素是复制应力。一些研究应用了不同的方法来估计复制源在不同生物体中的数量和位置。然而,如果没有一个参数来限制必要起源的最小值,那么不太敏感的技术可能会产生相互矛盾的结果。估计每个染色体的最小复制源数量(MO)是一种创新的方法,它允许建立一个阈值,作为绘制起源的基因组方法的参数。为此,MO可以很容易地通过一个公式得到,这个公式需要作为参数:染色体大小、S期持续时间和复制率。在基因组数据库(如NCBI)中可以获得任何生物体的染色体大小,通过监测DNA复制来估计S期的持续时间,并通过DNA组合方法获得复制率。 提供了一种简单、快速的估算MO的方法一个新的方法学框架来协助研究任何有机体。
关键词: DNA复制,复制来源,复制率,S期持续时间,染色体大小

[背景] ...

Mouse Model of Immune Complex-mediated Vasculitis in Dorsal Skin and Assessment of the Neutrophil-mediated Tissue Damage
Author:
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; ...

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