| Protocol for Establishing a Multiplex Image-based Autophagy RNAi Screen in Cell Cultures
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Author:
Date:
2017-09-05
[Abstract] Autophagy is a recycling pathway, in which intracellular cargoes including protein aggregates and bacteria are engulfed by autophagosomes and subsequently degraded after fusion with lysosomes. Dysregulation of this process is involved in several human diseases such as cancer or neurodegeneration. Hence, advancing our understanding of how autophagy is regulated provides an opportunity to explore druggable targets and subsequently develop treatment strategies for these diseases. To identify novel autophagy regulators, we developed an image-based phenotypic RNAi screening approach using autophagic marker proteins at endogenous levels (Jung et al., 2017). In contrast to previously performed autophagy screens, this approach does not use overexpressed, tagged autophagy marker proteins ...
[摘要] 自噬是一种循环途径，其中细胞内货物包括蛋白质聚集体和细菌被自噬吞噬，随后与溶酶体融合后降解。这种过程的失调涉及几种人类疾病，如癌症或神经退行性疾病。因此，提高我们对自噬如何监管的理解提供了探索可药用靶标的机会，并随后制定了这些疾病的治疗策略。为了鉴定新的自噬调节因子，我们开发了一种基于图像的表型RNAi筛选方法，在内源水平上使用自噬标记蛋白（Jung et al。，2017）。与以前进行的自噬屏幕相比，该方法不使用过表达标记的自噬标记蛋白，而是在内源水平检测自噬结构。此外，我们同时监测自噬的早期和晚期阶段，而其他筛选仅使用单个自噬体标志物大多为GFP-LC3B。在这里，我们详细描述了这种多重筛选方案，并讨论了如何建立基于图像的siRNA筛选的一般考虑。
【背景】自噬是一种细胞内质量和数量控制途径，通过这种途径，多种细胞溶质材料如病原体，细胞器或其部分，蛋白质和其他大分子被双重膜结构所吞噬，造成自噬体，并在自噬体与溶酶体融合后进行大量溶酶体降解。自体吞噬体的形成及其对自体溶酶体的成熟是一个高度规范的过程。在酵母中最初鉴定的AuTophaGy相关（ATG）基因是泛蛋白样蛋白Atg8，其通过与位于受体自噬体中的磷脂磷脂酰乙醇胺（PE）的可逆缀合以高度局部化的方式发挥其功能。人类细胞含有六个ATG8家族成员，可以分为两个亚科：i）微管相关蛋白1A / ...
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| Organotypic Spinal Cord Slice Cultures and a Method to Detect Cell Proliferation in These Slices
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Author:
Date:
2016-10-05
[Abstract] In these culture models, the normal cytoarchitecture and local neuronal circuits of the spinal cord are preserved, offering a compromise between dissociated cell cultures and complete animal studies. The addition of 5-ethynyl-2’-deoxyuridine (EdU) to the culture medium allows for the detection of proliferating cells.
[摘要] 在这些文化模型中，保留了脊髓的正常细胞结构和局部神经元回路，提供了解离的细胞培养物和完全动物研究之间的折衷。 向培养基中加入5-乙炔基-2'-脱氧尿苷（EdU）允许检测增殖细胞。
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