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Cancer arises from mutations in the critical genes that allow healthy cells to escape cell cycle regulation and acquire the ability to proliferate indefinitely. Though originating from a single mutation event in one of the originator cells, cancer progresses when the mutant cell lines continue to gain more and more mutations, and finally, become malignant. For example, chronic myelogenous leukemia (CML) develops initially as a non-lethal increase in white blood cells, which progressively...
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Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
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癌症亚克隆检测基于单细胞和空间欧米测序数据中的DNA拷贝数.

Chi-Yun Wu1,2, Jiazhen Rong1,2, Anuja Sathe3

  • 1Graduate Group in Genomics and Computational Biology, University of Pennsylvania, Philadelphia, PA, USA.

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概括

克隆镜可以使用单细胞和空间转录组学数据中的副本编号配置文件来识别不同的癌症亚克隆. 这种方法有助于理解瘤的演变,并通过揭示子克隆特征和空间分布来改善癌症治疗.

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科学领域:

  • 基因组学就是基因组学.
  • 计算生物学 计算生物学
  • 癌症研究 癌症研究

背景情况:

  • 身体突变,包括拷贝数的改变,驱动癌症的进展和瘤内异质性.
  • 了解瘤亚克隆的遗传构成和空间布局对于有效的癌症治疗和解开瘤进化至关重要.

研究的目的:

  • 介绍Clonalscope,一种用于检测和表征瘤亚克隆的新型计算方法.
  • 将Clonalscope应用于空间转录组学和单细胞测序数据,以进行全面的亚克隆分析.

主要方法:

  • 克隆镜利用副本编号配置文件和嵌套的中国餐厅流程来进行新的子克隆识别.
  • 该方法可以整合来自大量DNA测序的先前信息,以增强亚克隆检测和恶性细胞标记.
  • 它适用于单细胞RNA测序 (scRNA-seq),使用测序 (scATAC-seq) 测定转化酶可访问性染色质的单细胞测定和空间转录组学数据.

主要成果:

  • 克隆纳斯科普成功标记了恶性细胞,并使用scRNA-seq和scATAC-seq数据在胃肠道瘤中识别了不同的亚克隆.
  • 在各种瘤的空间转录学数据中,Clonalscope识别了具有不同分化水平的空间分离子克隆.
  • 该方法揭示了表达与抗药性和初级和转移性瘤生存相关的基因的子克隆.

结论:

  • 克隆镜是一种有效的工具,可以使用副本编号配置文件来剖析内异质性.
  • 该方法提供了关于瘤演变,空间结构和潜在的治疗漏洞的见解.
  • 克隆望远镜能够分析多样化的单细胞和空间数据,这提高了其在癌症研究和精准医学中的实用性.