在同一个单细胞中对染色质可访问性和基因表达的联合分析揭示了癌症特异性调节程序
Lei Tang1, Jinsong Zhang1, Yanqiu Shao1
1State Key Laboratory of Membrane Biology, Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, School of Life Sciences, Tsinghua University, Beijing 100084, China; MOE Key Laboratory of Bioinformatics, Center for Synthetic and Systems Biology, School of Life Sciences, Tsinghua University, Beijing 100084, China; Tsinghua-Peking Center for Life Sciences, Beijing 100084, China.
平行-seq同时测量单细胞中的染色质可访问性和基因表达. 这种具有成本效益的技术揭示了导致癌症进展的遗传和表观遗传因素,并确定了潜在的治疗点.
科学领域:
- 单细胞生物学 单细胞生物学
- 基因组学就是基因组学.
- 表观遗传学 在表观遗传学中,表观遗传学是指表观遗传学.
- 癌症研究 癌症研究
背景情况:
- 单细胞水平的生物分析揭示了染色质和基因表达异质性对生理学和癌症的影响.
- 了解细胞类型特定的表观遗传和遗传变化对于癌症研究至关重要.
研究的目的:
- 开发一种具有成本效益和高通量技术,用于同时测量单细胞中的染色质可访问性和基因表达.
- 将这项技术应用于肺瘤样本,以表征分子异质性并确定癌症进展的驱动因素.
主要方法:
- 开发了Parallel-seq,这是一种结合组合细胞索引和滴滴过载的新技术.
- 应用了Parallel-seq对40个肺瘤和相邻的临床样本.
- 产生了超过20万个联合单细胞ATAC和单细胞RNA测序配置文件.
主要成果:
- 平行-seq提供高质量的数据,成本明显低于现有方法.
- 在瘤细胞中,特征是拷贝数变异 (CNV) 和染色体外圆形DNA (eccDNA) 异质性.
- 预测了细胞类型特定的调节事件和确定了影响瘤进展的增强器突变.
结论:
- Parallel-seq是一个强大的工具,用于研究单细胞分辨率的癌症发展中的表观遗传和遗传因素.
- 该技术有助于识别细胞类型特定的调节事件和癌症潜在的治疗点.
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