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Author:
Date:
2021-02-20
[Abstract] RNA in situ hybridization is a method for visualizing spatiotemporal transcript accumulation in cells and tissues. The method provides clear resolution, is highly sensitive and specific, and can uncover gradients of transcript accumulation within a histologically-intact tissue, which is not possible currently with other methods for transcript detection. RNA in situ hybridization, however, is not a quantitative approach for gene expression. Protocols for RNA in situ hybridization have numerous steps that can span several days of work, complicating troubleshooting procedures. Here, we build on previously published RNA in situ hybridization protocols optimized for paraffin-embedded and sectioned maize tissue (Jackson, 1991; Long et al., 1996 ; ...
[摘要] [摘要] RNA原位杂交是一种可视化时空转录本在细胞和组织中积累的方法。该方法提供清晰的分辨率,高度灵敏和特异,并且可以揭示组织完整的组织内转录物积累的梯度,这是当前其他方法无法检测到转录物的方法。然而,RNA原位杂交不是用于基因表达的定量方法。RNA原位杂交的协议有许多步骤,可能需要花费数天的时间,从而使故障排除过程变得更加复杂。在这里,我们基于先前发布的RNA原位构建 杂交方案针对石蜡包埋和切片的玉米组织进行了优化(Jackson,1991; Long等,1996;Javelle等,2011),它提供了优化转录本检测的其他措施。
图形摘要:
RNA原位杂交的工作流程
[背景技术]在时间和空间差异基因表达允许具有相同的遗传物质的细胞呈现不同的身份。确实,基因表达的这种变化通常负责驱动整个生物体中模式或形态的进化变化(Carroll,2005)。因此,通过观察组织内天然背景下的基因表达,可以增强对发育过程的见识。诸如RT-qPCR和RNA- ...
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Author:
Date:
2020-09-20
[Abstract] Most organs and tissues are composed of many types of cells. To characterize cellular state, various transcription profiling approaches are currently available, including whole-tissue bulk RNA sequencing, single cell RNA sequencing (scRNA-Seq), and cell type-specific RNA sequencing. What is missing in this repertoire is a simple, versatile method for bulk transcriptional profiling of cell types for which cell type-specific genetic markers or antibodies are not readily available. We therefore developed Probe-Seq, which uses hybridization of gene-specific probes to RNA markers for isolation of specific types of cells, to enable downstream FACS isolation and bulk RNA sequencing. We show that this method can enable isolation and profiling of specific cell types from mouse retina, frozen human ...
[摘要] [摘要 ] 大多数器官和组织由许多类型的细胞组成。为了表征细胞状态,目前可以使用各种转录分析方法,包括全组织体RNA测序,单细胞RNA测序(scRNA -Seq)和特定于细胞类型的RNA测序。在此库中缺少的是一种简单,通用的方法,无法批量获得细胞类型的特定基因标记或抗体,因此无法批量转录。因此,我们开发了Probe-Seq,该探针使用基因特异性探针与RNA标记的杂交来分离特定类型的细胞,以实现下游FACS分离和大量RNA测序。我们表明,该方法可以实现从小鼠视网膜,冷冻人视网膜,果蝇中肠和发育中的雏鸡视网膜中分离和分析特定细胞类型的特征,这表明它对大多数生物很有用。
[背景技术 [ 0002 ] 在过去的二十年中,使用RNA-Seq和微阵列进行转录谱分析已在生物学研究中无处不在。分析现在是用来了解大多数生物体中细胞和细胞状态的主要工具之一。它被用于正常发育,异常发育和疾病的研究,并极大地扩展了我们对进化关系的理解。特别地,scRNA- Seq已经以前所未有的速度导致了新型细胞类型的鉴定(Picelli 等,2013;Jaitin 等,2014; Klein 等,2015; Macosko 等,2015)。为了更深入地了解这些新描述的细胞类型,一种无需转基因标记或特异性抗原即可将其分离的方法将大有裨益。尽管可以使用scRNA ...
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