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AGAR, Bacteriological Grade

琼脂

Company: BioShop Canada
Catalog#: AGR001
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Lipidomic Analysis of Caenorhabditis elegans Embryos
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Date:
2017-09-20
[Abstract]  Metabolomic is an emerging field of system biology. Lipidomic, a branch of metabolomic, aims to characterize lipophilic metabolites in biological systems. Caenorhabditis elegans (C. elegans) is a genetically tractable and versatile animal model for novel discovery of lipid metabolism. In addition, C. elegans embryo is simple and homogeneous. Here, we demonstrate detailed procedures of C. elegans culture, embryo isolation, lipid extraction and metabolomic data analysis. [摘要]  在心肌梗死(MI)中,许多心肌细胞凋亡。 这些凋亡心肌细胞被吞噬细胞迅速吞噬。 如果死细胞没有被吞没,其有害物质被释放到外面,导致炎症的诱导。 因此,需要去除这些死细胞。 然而,每个吞噬细胞类型对梗塞心脏中凋亡细胞的去除的贡献仍未解决。 在这里,我们描述了吞噬作用测定的体外方案来比较心脏巨噬细胞和心脏肌成纤维细胞的吞噬能力。
【背景】长期以来一直认为,心脏巨噬细胞消除了在失败的心脏中产生的凋亡细胞。 然而,我们发现负责组织纤维化的心脏肌成纤维细胞也具有在MI后吞噬凋亡细胞的能力(Nakaya等,2017)。 这一发现促使我们比较心脏巨噬细胞和心脏肌成纤维细胞的吞噬能力。 在这里,我们提供了一个详细的体外吞噬试验方案来评估吞噬吞噬的程度。

Cell-based Assays to Monitor AID Activity
Author:
Date:
2016-02-05
[Abstract]  The enzyme Activation induced deaminase (AID) underpins antibody affinity maturation and isotype switching through its mutagenic activity of deaminating deoxycytidine to deoxyuridine in DNA. Subsequent processing of the deoxyuridine initiates the processes of somatic hypermutation (SHM) and class switch recombination (CSR) in B cells. Structure-function analysis of AID requires sensitive and biologically relevant methods to measure its various activities. Here we describe simple but effective methods to measure 1) the ability of AID to mutate the Escherichia coli genome, which provides an indication of its catalytic activity; 2) the capacity of AID to perform SHM by complementing a derivative of the DT40 chicken B cell line; 3) the ability of AID to perform CSR by complementing ... [摘要]  酶活化诱导的脱氨酶(AID)通过其将脱氧胞苷脱氨基到DNA中的脱氧尿苷的诱变活性来支持抗体亲和力成熟和同种型转换。脱氧尿苷的后续加工引发B细胞中体细胞超突变(SHM)和类型转换重组(CSR)的过程。 AID的结构功能分析需要灵敏和生物相关的方法来测量其各种活动。在这里我们描述简单但有效的方法来测量1)AID突变大肠杆菌基因组的能力,其提供其催化活性的指示; 2)AID通过补充DT40鸡B细胞系的衍生物来进行SHM的能力; 3)AID通过补充AID缺乏的原代小鼠B细胞来进行CSR的能力。三种方法的组合,伴随着AID亚细胞定位和蛋白质表达水平和稳定性的必要分析作为对照,允许AID的详细结构功能研究。

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