{{'Search' | translate}}
 

90 mm Petri dish

公司名称: Thermo Fisher Scientific
产品编号: 101R20
Bio-protocol()
Company-protocol()
Other protocol()

Ligand and Carbohydrate Engagement (LACE) Assay and Fluorescence Quantification on Murine Neural Tissue
Author:
Date:
2021-03-20
[Abstract]  

The interaction between cell surface heparan sulphate and diffusible ligands such as FGFs is of vital importance for downstream signaling, however, there are few techniques that can be used to investigate this binding event. The ligand and carbohydrate engagement (LACE) assay is a powerful tool which can be used to probe the molecular interaction between heparan sulphate and diffusible ligands and can detect changes in binding that may occur following genetic or pharmacological intervention. In this protocol we describe an FGF17:FGFR1 LACE assay performed on embryonic mouse brain tissue. We

...
[摘要]  [摘要]细胞表面硫酸乙酰肝素与可扩散配体(例如FGFs)之间的相互作用对于下游信号传导至关重要,但是,很少有技术可用于研究这种结合事件。配体和碳水化合物结合(LACE)分析是一种功能强大的工具,可用于探测硫酸乙酰肝素与可扩散配体之间的分子相互作用,并可检测在遗传或药理学干预后可能发生的结合变化。在此协议中,我们描述了在胚胎小鼠脑组织上进行的FGF17:FGFR1 LACE分析。我们还描述了我们用来量化荧光LACE信号响应HS硫酸盐改变的变化的方法。


[背景]硫酸乙酰肝素(HS)是一种细胞外基质和细胞表面糖胺聚糖分子,可通过硫酸化进行广泛修饰。HS与包括FGF,Wnt,BMP和Slits在内的多种具有重要发展意义的信号分子相互作用。例如,在FGF信号传导期间,HS充当共受体,促进FGF配体与细胞表面FGFR受体的结合。此形成HS:FGF:FGFR需要复杂的对FGF信号发生(阿伦等人,2001) 。已显示HS的差异硫酸化会影响FGF配体与其FGFR细胞表面受体的结合。在我们最近的论文中,我们使用了配体和碳水化合物结合(LACE)分析方法来检测HS和FGF蛋白之间的相互作用(Clegg et ...

Using 14C-acetate Pulse-chase Labeling to Study Fatty Acid and Glycerolipid Metabolism in Plant Leaves
Author:
Date:
2021-02-05
[Abstract]  

Lipids metabolism is comprised of networks of reactions occurred in different subcellular compartments. Isotopic labeling is a good way to track the transformations and movements of metabolites without perturbing overall cellular metabolism. Fatty acids, the building blocks of membrane lipids and storage triacylglycerols, are synthesized in plastids. The immediate precursor for fatty acid synthesis is acetyl-CoA. Exogenous acetate is rapidly incorporated into fatty acids in leaves and isolated plastids because it can diffuse freely through cellular membranes, enter the plastid where it is

...
[摘要]  [摘要]脂质代谢由发生在不同亚细胞区室的反应网络组成。同位素标记是跟踪代谢物的转化和运动的好方法,而不会干扰整个细胞的新陈代谢。发TTY酸,膜脂和存储的构建块的三酰基甘油,在质体中合成的。脂肪酸合成的直接前体是乙酰辅酶A。外源乙酸盐可快速掺入叶片和分离的质体中的脂肪酸中,因为它可以通过细胞膜自由扩散,进入质体,然后迅速代谢成乙酰辅酶A。 因此,同位素标记的乙酸盐通常用作研究植物和其他生物中脂肪酸合成和复杂脂质代谢的示踪剂。同位素标记的基本原理及其最新技术进展已得到综述(Allen等,2015)。本协议描述了使用 的14 C标记的乙酸,以确定的脂肪酸合成和降解速率和跟踪的代谢甘油脂中的叶子。该方法通常被称为醋酸酯脉冲追踪标记法,已被广泛用于探查脂质代谢的各个方面(Allen等,2015),包括自噬在膜脂质更新中的作用(Fan等,2015)。,2019)和脂质与淀粉代谢途径之间的相互作用(Yu et al。,2018)。

Isolation and High Throughput Flow Cytometric Apoptosis Assay of Human Neutrophils to Enable Compound Library Screening
Author:
Date:
2020-06-05
[Abstract]  The study of human neutrophils in vitro is challenging due to their short half-life and propensity for activation. However, with careful handling and manipulation in the laboratory, they can be a powerful tool to investigate immune responses in health and disease. Here we describe a method for the isolation of human neutrophils from peripheral blood samples, followed by a high-throughput screen to assess the efficacy of a library of compounds in inducing neutrophil apoptosis, which may have therapeutic potential in neutrophil-driven diseases. This protocol is based on ... [摘要]  [摘要] 人类嗜中性粒细胞的研究 由于其半衰期短且易于活化,因此体外具有挑战性,然而,通过在实验室中的仔细处理和操纵,它们可以成为研究健康和疾病中免疫反应的有力工具。在此,我们介绍了一种分离方法外周血样本中的人类嗜中性粒细胞,然后进行高通量筛选,以评估化合物库诱导嗜中性粒细胞凋亡的功效,该化合物在嗜中性粒细胞驱动的疾病中可能具有治疗潜力。此规程基于先前发表的嗜中性粒细胞分离方法利用红细胞的葡聚糖沉降,接着用等离子体/粒细胞的分离的Percoll 〜1×10个的不连续梯度centrifugation.Yields 6 每嗜中性粒细胞毫升的血液,和>的纯度95个%嗜中性粒细胞是典型的。嗜中性粒细胞与经处理的激酶抑制剂文库,然后通过流式细胞仪评估中性粒细胞凋亡的速率。低通量用于高通量筛选人类原代免疫细胞,以鉴定具有修饰嗜中性粒细胞功能的化合物,并可根据需要进行修饰以评估其他表型。

[背景] 中性粒细胞是重要的先天免疫细胞与键的角色防御抵抗infection.They是短暂的细胞中,在感染和inflammat部位延长6-8小时循环典型的半衰期离子(萨默斯等人。 。,2010 ; Hidalgo。Et Al ...

产品评论