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单细胞RNA测序(scRNA-seq)分析以单个细胞的分辨率表征基因表达,能够发现散点图转录组学中无法察觉的细胞类型、状态和转变。从原始测序读数开始,工作流程会生成一个细胞-基因计数矩阵,并经过质量控制、标准化、降维、无监督聚类、细胞类型注释以及一系列下游分析,如轨迹推断和细胞群体间的差异表达。

散点图RNA测序(Bulk RNA-seq)可以告诉你跨越数千个细胞的平均基因表达水平——这很有用,但稀有或特化细胞的信号会被大多数细胞淹没。单细胞RNA测序(scRNA-seq)为每个细胞提供其自身的转录组清单。想象一下按类型对一袋混合硬币进行分类,然后单独计算每种面额,而不是称量整袋硬币。一旦细胞被单独分析并按转录相似性聚类,你就可以识别肿瘤中的稀有免疫亚型,重建干细胞如何分化为神经元,或者比较单个细胞对同一药物治疗的不同反应。

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来源

  1. Satija, R., Farrell, J. A., Gennert, D., Schier, A. F., & Regev, A. (2015). Spatial reconstruction of single-cell gene expression data. Nature Biotechnology, 33(5), 495–502. DOI: 10.1038/nbt.3192
  2. Macosko, E. Z., Basu, A., Satija, R., Nemesh, J., Shekhar, K., Goldman, M., ... & McCarroll, S. A. (2015). Highly parallel genome-wide expression profiling of individual cells using nanoliter droplets. Cell, 161(5), 1202–1214. DOI: 10.1016/j.cell.2015.05.002

如何引用本页

ScholarGate. (2026, June 3). Single-cell RNA Sequencing Analysis. ScholarGate. https://scholargate.app/zh/bioinformatics/single-cell-rna-seq-analysis

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被引用于

ScholarGateSingle-cell RNA-seq analysis (Single-cell RNA Sequencing Analysis). 于 2026-06-15 检索自 https://scholargate.app/zh/bioinformatics/single-cell-rna-seq-analysis · 数据集: https://doi.org/10.5281/zenodo.20539026