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Foetal calf serum

胎牛血清

Company: Thermo Fisher Scientific
Catalog#: 10500064
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Dual Fluorescence Reporter Based Analytical Flow Cytometry for miRNA Induced Regulation in Mammalian Cells
Author:
Date:
2018-09-05
[Abstract]  MicroRNA-induced gene regulation is a growing field in basic and translational research. Examining this regulation directly in cells is necessary to validate high-throughput data originated from RNA sequencing technologies. For this several studies employ luciferase-based reporters that usually measure the whole cell population, which comes with low resolution for the complexity of the miRNA-induced regulation. Here, we provide a protocol using a dual-fluorescence reporter and flow cytometry reaching single cell resolution; the protocol contains a simplified workflow that includes: vector generation, data acquisition, processing, and analysis using the R environment. Our protocol enables high-resolution measurements of miRNA induced post-transcriptional gene regulation and combined with ... [摘要]  MicroRNA诱导的基因调控是基础和转化研究中不断增长的领域。 直接在细胞中检查该调节对于验证源自RNA测序技术的高通量数据是必要的。 对于这一研究,一些研究采用基于荧光素酶的报告基因,通常测量全细胞群,其具有低分辨率的miRNA诱导调节的复杂性。 在这里,我们提供使用双荧光报告基因和流式细胞仪达到单细胞分辨率的方案; 该协议包含一个简化的工作流程,包括:使用R环境进行矢量生成,数据采集,处理和分析。 我们的协议可实现miRNA诱导的转录后基因调控的高分辨率测量,并结合系统生物学,可用于估计miRNA的熟练程度。

【背景】MicroRNAs(miRNA)是高度保守的小型非蛋白质编码RNA(21-22nt),可调节转录后基因表达并调节基因生物学过程,如发育和细胞稳态(Lagos-Quintana et al。,2001; Fabian et al。,2010; Bartel,2018),包括miRNA表达与肿瘤进展和侵袭性相关的几种病理(Lu et al。, 2005; Di Leva和Croce,2013; Krishnan et al。,2015; Bertoli et ...

Generation of Human Mesenchymal Stem Cell 3D Spheroids Using Low-binding Plates
Author:
Date:
2018-08-20
[Abstract]  The 3D culture of human mesenchymal stem cells (hMSCs) represents a more physiological environment than classical 2D culture and has been used to enhance the MSC secretome or extend cell survival after transplantation. Here we describe a simple and affordable method to generate 3D spheroids of hMSCs by seeding them at high density in a low-binding 96-well plate.

Spheroids of hMSCs cultured in low-binding 96-well plates can be used to study the basic biology of the cells and to generate conditioned media or spheroids to be used in transplantation therapeutic approaches. These MSCs or their secretome can be used as a regenerative therapy and for tissue repair across multiple disease areas, including neurodegeneration.

In comparison to other methods (hanging drop, use ...
[摘要]  人间充质干细胞(hMSC)的3D培养代表比经典2D培养更生理的环境,并且已经用于增强MSC分泌组或移植后延长细胞存活。 在这里,我们描述了一种简单且经济实惠的方法,通过在低密度96孔板中高密度接种hMSC来生成三维球状体。

在低结合96孔板中培养的hMSC的球状体可用于研究细胞的基本生物学并产生用于移植治疗方法的条件培养基或球状体。 这些MSC或其分泌蛋白组可用作再生疗法和用于多个疾病区域的组织修复,包括神经变性。

与其他方法(悬滴,使用凝胶或生物材料,磁悬浮,等)相比,此处描述的方法简单且经济实惠,无需使用专用设备,昂贵材料或复杂试剂。

【背景】 间充质干细胞(MSCs)是开发针对中风或肌萎缩侧索硬化等疾病的新型再生疗法的有吸引力的候选者(Chen et al。,2001; Bang et al。,2005; Boido et al。,2014)。它们的多功能性使得技术的优化和标准化对于确保MSC疗法可以提供尽可能多的益处是必不可少的。使MSC的治疗潜力(例如,增强的抗炎介质分泌)最大化的一种可能方式是以3D方式培养它们(Bartosh ...

Differentiation of Human Induced Pluripotent Stem Cells (iPS Cells) and Embryonic Stem Cells (ES Cells) into Dendritic Cell (DC) Subsets
Author:
Date:
2017-08-05
[Abstract]  Induced pluripotent stem cells (iPS cells) are engineered stem cells, which exhibit properties very similar to embryonic stem cells (ES cells; Takahashi and Yamanaka, 2016). Both iPS cells and ES cells have an extraordinary self-renewal capacity and can differentiate into all cell types of our body, including hematopoietic stem/progenitor cells and dendritic cells (DC) derived thereof. This makes iPS cells particularly well suited for studying molecular mechanisms of diseases, drug discovery and regenerative therapy (Grskovic et al., 2011; Bellin et al., 2012; Robinton and Daley, 2012).

DC are the major antigen presenting cells of the immune system and thus they are key players in modulating and directing immune responses (Merad et al., 2013). DC ...
[摘要]  诱导的多能干细胞(iPS细胞)是工程干细胞,其表现出与胚胎干细胞(ES细胞,Takahashi和Yamanaka,2016)非常相似的性质。 iPS细胞和ES细胞都具有非凡的自我更新能力,可以分化成我们身体的所有细胞类型,包括造血干细胞/祖细胞和源自其的树突状细胞(DC)。这使得iPS细胞特别适用于研究疾病,药物发现和再生治疗的分子机制(Grskovic等人,2011; Bellin等人,2012; Robinton和Daley,2012)。
  DC是免疫系统的主要抗原呈递细胞,因此它们是调节和引导免疫应答的关键参与者(Merad等人,2013)。 DC巡逻外周和界面组织(例如,肺,肠和皮肤)以检测入侵的病原体,并且在激活时,它们迁移到淋巴结以激活和引发淋巴细胞。
  DC包含具有功能专门子集的表型异质家族(Schlitzer和Ginhoux,2014)。通常,经典DC(cDC)和浆细胞样DC(pDC)是分别表现出典型的和等离子体细胞样的DC形态。 cDC识别许多病原体并在激活后分泌促炎细胞因子,而pDC专门检测细胞内病原体并分泌I型干扰素(Merad等,2013; Schlitzer和Ginhoux,2014)。在被称为CD141 Clec9a + cDC1和CD1c + ...

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