The following study was conducted by Scientists from Department of Genetics, Yale School of Medicine, Yale University, New Haven, CT, USA; Department of Pathology, Yale School of Medicine, Yale University, New Haven, CT, USA; Department of Cell Biology, Yale School of Medicine, Yale University, New Haven, CT, USA. Study is published in Nature Communications Journal as detailed below
Nature Communications; Volume 11, Article Number: 2907 (2020)
Multiplexed Imaging of Nucleome Architectures in Single Cells of Mammalian Tissue
Abstract
The three-dimensional architecture of the genome affects genomic functions. Multiple genome architectures at different length scales, including chromatin loops, domains, compartments, and lamina- and nucleolus-associated regions, have been discovered. However, how these structures are arranged in the same cell and how they are mutually correlated in different cell types in mammalian tissue are largely unknown. Here, we develop Multiplexed Imaging of Nucleome Architectures that measures multiscale chromatin folding, copy numbers of numerous RNA species, and associations of numerous genomic regions with nuclear lamina, nucleoli and surface of chromosomes in the same, single cells. We apply this method in mouse fetal liver, and identify de novo cell-type-specific chromatin architectures associated with gene expression, as well as cell-type-independent principles of chromatin organization. Polymer simulation shows that both intra-chromosomal self-associating interactions and extra-chromosomal interactions are necessary to establish the observed organization. Our results illustrate a multi-faceted picture and physical principles of chromatin organization.
Source:
Nature Communications
URL: https://www.nature.com/articles/s41467-020-16732-5
Citation:
Liu, M., Y. Lu, et al. (2020). “Multiplexed imaging of nucleome architectures in single cells of mammalian tissue.” Nature Communications 11(1): 2907.
