| Ex vivo Assessment of Mitochondrial Function in Human Peripheral Blood Mononuclear Cells Using XF Analyzer
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Author:
Date:
2021-04-05
[Abstract] Cellular health and function, as we know today, depend on a large extent on mitochondrial function. The essential function of mitochondria is the energy production, more precisely ATP production, via oxidative phosphorylation. Mitochondrial energy production parameters therefore represent important biomarkers. Studies on human cells have mainly been performed on in vitro cell cultures. However, peripheral blood mononuclear cells (PBMCs) are particularly suitable for such examinations. That’s why this protocol describes a method to measure key parameters of mitochondrial function in freshly isolated PBMCs with the latest technology, the XF Analyzer. For this ex vivo approach PBMCs are first isolated out of human anticoagulated blood. Next, they are attached to the surface of special ...
[摘要] [摘要]正如我们今天所知，细胞的健康和功能在很大程度上取决于线粒体的功能。线粒体的基本功能是ENER GY生产，更精确的LY ATP生产，通过氧化磷酸化。因此，线粒体能量产生参数代表重要的生物标记。对人类细胞的研究主要是在体外细胞培养中进行的。然而，外周血单核细胞（PBMC）是特别升ý适于这样的检查。这就是为什么这个协议描述测量与最新的技术，新鲜分离的PBMC线粒体功能的关键参数的方法的XF分析。对于这个离体PBMC首先是从人抗凝血液中分离出来的。接下来，将它们附着到预先涂有Poly-D-Lysine的特殊微孔板的表面上。期间的氧消耗速率（OCR）以及细胞外酸化率（ECAR）的应力试剂寡，羰氰化物随后的测量4 - （三氟甲氧基）苯腙（FCCP），鱼藤酮和抗霉素A被注入。可以从获得的结果中计算出几个线粒体参数。该协议的应用允许分析对人体细胞的各种影响，例如药物或环境因素。
[背景]线粒体在维持正常细胞功能中起关键作用。现在众所周知，它们不仅通过氧化磷酸化产生ATP，而且还参与氨基酸，脂质和核苷酸的代谢，潜水信号转导和氧化还原过程以及质量控制和降解过程，包括线粒体和磷酸化。细胞凋亡（Pfanner等，2019）。然而，线粒体代表正常细胞中ATP合成的主要位点（Akbari等人，2019）。为此，通过多亚基酶复合物I – ...
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| Low-cost and High-throughput RNA-seq Library Preparation for Illumina Sequencing from Plant Tissue
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Author:
Date:
2020-10-20
[Abstract] Transcriptome analysis can provide clues to biological processes affected in different genetic backgrounds or/and under various conditions. The price of RNA sequencing (RNA-seq) has decreased enough so that medium- to large-scale transcriptome analyses in a range of conditions are feasible. However, the price and variety of options for library preparation of RNA-seq can still be daunting to those who would like to use RNA-seq for their first time or for a single experiment. Among the criteria for selecting a library preparation protocol are the method of RNA isolation, nucleotide fragmentation to obtain desired size range, and library indexing to pool sequencing samples for multiplexing. Here, we present a high-quality and a high-throughput option for preparing libraries from ...
[摘要] [摘要] 转录组分析可以为不同遗传背景或不同条件下的生物学过程提供线索。RNA测序（RNA-seq）的价格已经下降到足够低的程度，因此在各种条件下进行中大规模转录组分析是可行的。然而，对于那些希望第一次使用RNA-seq或进行单个实验的人来说，RNA-seq库制备的价格和各种选择仍然是令人望而生畏的。选择文库制备方案的标准包括RNA分离方法、核苷酸片段化以获得所需的大小范围，以及文库索引以汇集测序样本进行多路复用。在这里，我们提出了一个高质量和高通量的选择，从多聚腺苷酸mRNA制备文库用于转录组分析。高质量和高通量的方案选择都包括通过磁珠使poly-A尾部沉淀，cDNA合成，然后通过Tn5介导的“标记”同时裂解和添加适配器的步骤。该方案的所有步骤均已通过拟南芥叶片和幼苗组织的验证，并简化为协同工作，在资金和时间上成本最低，因此旨在为转录组分析提供一个初学者友好的从开始到完成的RNA序列库制备。
[背景] 通过Southern印迹、expressed sequence ...
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