空间表观基因组,转录基因组和细胞系的统一分子方法
Yung-Hsin Huang1, Julia A Belk1, Ruochi Zhang2,3,4
1Department of Dermatology, Center for Personal Dynamic Regulomes and Program in Epithelial Biology, Stanford University School of Medicine, Stanford, CA 94305.
概括
SPACE-seq使用标准试剂实现了空间多组学,克服了定制方法的局限性. 这项新技术揭示了瘤微环境状态和质母细胞瘤的遗传变异.
科学领域:
- 基因组学就是基因组学.
- 表观基因组学是指表观基因组学.
- 分子生物学分子生物学
背景情况:
- 空间表观基因组学和多基因组学提供了详细的细胞洞察力.
- 目前的方法需要专门的幻灯片和化学物质,限制了可访问性.
- 需要一个统一的空间多元经济学的方法.
研究的目的:
- 介绍SPACE-seq,这是一个新的空间多态学方法.
- 使用标准试剂实现简单的空间多组学.
- 使用空间多组学来描述质母细胞瘤.
主要方法:
- 开发了SPACE-seq使用聚氨酸尾状表观遗传学图书馆.
- 使用标准的全转录组试剂用于图书馆的准备.
- 应用了SPACE-seq对人类质母细胞瘤样本.
主要成果:
- 揭示了质母细胞瘤瘤微环境中的细胞状态.
- 在空间上确定了染色体外DNA拷贝数.
- 标识了样本内的潜在的线粒体DNA变体.
结论:
- SPACE-seq为现有试剂的空间多组学提供了便利.
- 该方法为复杂的生物样本提供了全面的见解.
- SPACE-seq是研究质母细胞瘤等疾病的强大工具.
相关概念视频
01:30Structure of a Gene
A gene is the fundamental unit of heredity. Every individual has two copies of each gene, one inherited from each parent. Although most people contain the same genes, there is a small fraction that is slightly different amongst people. A gene with a small difference in its sequence of DNA bases forms different alleles, contributing to different phenotypes.
However, only 1% of the DNA is composed of genes that encode proteins; the rest, 99% is non-coding DNA. This non-coding DNA performs...
However, only 1% of the DNA is composed of genes that encode proteins; the rest, 99% is non-coding DNA. This non-coding DNA performs...
01:58Cell Specific Gene Expression
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
01:58Cell Specific Gene Expression
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
02:07Organization of Genes
Overview
02:07Organization of Genes
Overview
02:33Combinatorial Gene Control
Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...