期刊
FRONTIERS IN MOLECULAR BIOSCIENCES
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmolb.2022.959688
关键词
genome architecture; epigenetic regulation; spatial omics; DNA folding; chromatin structure
资金
- Major Research Plan of the National Natural Science Foundation of China [92049110]
- Walter V. and Idun Berry Postdoctoral Fellowship from Stanford University
- Undergraduate Summer Research Fellowship in Chemistry from Stanford University
The three-dimensional structure of chromosomes has significant effects on biological processes, and single-cell Hi-C has emerged as a new method to reveal the actual 3D structure of individual genomes.
The three-dimensional (3D) structure of chromosomes influences essential biological processes such as gene expression, genome replication, and DNA damage repair and has been implicated in many developmental and degenerative diseases. In the past two centuries, two complementary genres of technology-microscopy, such as fluorescence in situ hybridization (FISH), and biochemistry, such as chromosome conformation capture (3C or Hi-C)-have revealed general principles of chromosome folding in the cell nucleus. However, the extraordinary complexity and cell-to-cell variability of the chromosome structure necessitate new tools with genome-wide coverage and single-cell precision. In the past decade, single-cell Hi-C emerges as a new approach that builds upon yet conceptually differs from bulk Hi-C assays. Instead of measuring population-averaged statistical properties of chromosome folding, single-cell Hi-C works as a proximity-based biochemical microscope that measures actual 3D structures of individual genomes, revealing features hidden in bulk Hi-C such as radial organization, multi-way interactions, and chromosome intermingling. Single-cell Hi-C has been used to study highly dynamic processes such as the cell cycle, cell-type-specific chromosome architecture ( structure types ), and structure-expression interplay, deepening our understanding of DNA organization and function.
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