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DMEM – high glucose, 4500 mg/L glucose

Dulbecco''s Modified Eagle''s Medium - 高葡萄糖

公司名称: Sigma-Aldrich
产品编号: D5796
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Isolation, Culture, and Differentiation of Primary Myoblasts Derived from Muscle Satellite Cells
Author:
Date:
2020-07-20
[Abstract]  The skeletal muscle is key for body mobility and motor performance, but aging and diseases often lead to progressive loss of muscle mass due to wasting or degeneration of muscle cells. Muscle satellite cells (MuSCs) represent a population of tissue stem cells residing in the skeletal muscles and are responsible for homeostatic maintenance and regeneration of skeletal muscles. Growth, injury, and degenerative signals activate MuSCs, which then proliferate (proliferating MuSCs are called myoblasts), differentiate and fuse with existing multinuclear muscle cells (myofibers) to mediate muscle ... [摘要]  [摘要] 骨骼肌是身体活动和运动表现的关键,但是衰老和疾病通常会由于肌肉细胞的浪费或变性而导致肌肉质量的逐步丧失。肌卫星细胞(MuSCs)代表的组织STE群体米细胞小号居住在骨骼肌和负责骨骼肌的体内平衡维持和再生。生长,损伤和变性信号激活MuSC,然后增殖(增殖的MuSC被称为成肌细胞),分化并与现有的多核肌肉细胞(肌纤维)融合,以介导肌肉的生长和修复。在这里,我们描述了从小鼠骨骼肌中分离MuSC的体外实验方案分析。此外,我们提供了有关如何将原代成肌细胞培养和分化成肌管的详细协议,以及用于表征细胞的免疫荧光染色程序。这些方法对于在体外模拟再生肌生成以了解MuSC 的动力学,功能和分子调控至关重要。

[背景] 通过多种细胞功能维持肌肉的动态平衡,对于保持肌肉的完整性至关重要。组织特异性成体干细胞能够在整个生命中连续不断地再生局部组织。在成年骨骼肌中,称为肌肉卫星细胞(MuSC)的干细胞群具有强大的再生能力,这是肌肉动态平衡的关键(Yin 等人,2013; Dumont 等人,2016)。静态MuSC位于与肌肉纤维并列的基底层下方的壁iche中,负责肌肉的生长和再生(Yin 等人,2013; Dumont 等人,2016)。

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Spatial Image Correlation Spectroscopy (ICS): A Technique for Average Size Determination of Subcellular Accumulated Structures from Fluorescence Microscopic Images
Author:
Date:
2020-05-20
[Abstract]  Size determination of subcellular structures such as inclusion bodies (IBs) and granules from fluorescent images is important for identification and structural characterization. However, it is often time-consuming just for the comparison of the average size of the structures. Here, we introduce a high-throughput procedure to represent the average size of structures in fluorescent images using Spatial Image Correlation Spectroscopy (SICS). This procedure provides an easier comparison of bodies and granular structures such as inclusion bodies (IBs) including misfolded protein aggregation, ... [摘要]  [摘要] 从荧光图像中确定亚细胞结构(如包涵体(IBs)和颗粒)的尺寸确定对于鉴定和结构表征很重要。然而,它往往是耗费时间只是在结构的平均尺寸的比较。在这里,我们介绍了一种高通量程序,可以使用空间图像相关光谱(SICS)表示荧光图像中结构的平均大小。该程序使物体和颗粒结构的比较容易,例如包含错误折叠的蛋白质聚集的包涵体(IBs),包含RNA的颗粒(例如,应力颗粒和加工体)。

[背景] 包涵体(IBs)经常在神经退行性疾病患者的神经元中,甚至在健康生物体的细胞中也观察到(Ross和Poirier,2004; Anderson和Kedersha,2006; Kitamura 等,2015)。包括错误折叠的蛋白质聚集的IB是神经退行性疾病的标志。确定此类IB的大小对于识别和表征IB非常重要。通常使用荧光蛋白和/或免疫荧光来观察IB和亚细胞结构,因为荧光标记针对感兴趣的结构提供了理想的特异性以对抗背景中的低信号(Kitamura和Kinjo,2018)。为了确定荧光图像中亚细胞结构(如IB)的大小,已使用图像分析软件(例如ImageJ,Fiji,Metamorph 等)直接测量了结构的半径和面积。在此过程中,有必要设计一种能够准确反映特定结构尺寸的遮罩,对于研究人员来说,设计能够正确区分结构边缘的遮罩有时并不容易。ALTH Ô ...

Analysis of the Effect of Sphingomyelinase on Rubella Virus Infectivity in Two Cell Lines
Author:
Date:
2018-09-05
[Abstract]  Rubella is a mildly contagious disease characterized by low-grade fever and a morbilliform rash caused by the rubella virus (RuV). Viruses often use cellular phospholipids for infection. We studied the roles of cellular sphingomyelin in RuV infection. Treatment of cells with sphingomyelinase (SMase) inhibited RuV infection in rabbit kidney-derived RK13 cells and African green monkey (Cercopithecus aethiops) kidney-derived Vero cells. Our data further demonstrated that RuV used cellular sphingomyelin and cholesterol for its binding to cells and membrane fusion at the step of virus ... [摘要]  风疹是一种轻度传染性疾病,其特征是低风热和由风疹病毒(RuV)引起的麻疹样皮疹。 病毒通常使用细胞磷脂进行感染。 我们研究了细胞鞘磷脂在RuV感染中的作用。 用鞘磷脂酶(SMase)处理细胞抑制兔肾衍生的RK13细胞和非洲绿猴( Cercopithecus aethiops )肾源性Vero细胞中的RuV感染。 我们的数据进一步证明RuV在病毒进入的步骤中使用细胞鞘磷脂和胆固醇来结合细胞和膜融合。 描述了我们的测定的详细方案,其评估了SMase处理对RK13和Vero细胞中RuV感染性的影响。

【背景】风疹病毒(RuV)是一种正链RNA病毒,属于 Togaviridae 家族中的 Rubivirus 属。该家族有两个属, Rubivirus 和 Alphavirus 。风疹病毒是属的鞋底构件的风疹病毒,而许多病毒,例如塞姆利基森林病毒(SFV)和辛德毕斯病毒(SINV),是归类于甲病毒属。 RuV是风疹和先天性风疹综合征(CRS)的致病因子。风疹的特征是低烧,麻疹样皮疹和淋巴结肿大。它通常是一种轻微的疾病。然而,CRS是一种严重的疾病。 CRS导致在怀孕早期患有风疹的母亲所生的新生儿出现多器官缺陷。白内障,感音神经性听力损失和心血管缺陷在CRS中很常见。

以前的研究表明,细胞膜脂质作为RuV感染的结合或进入因子(Mastromarino ...

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