Chromosomes distribute randomly to, but not within, human neutrophil nuclear lobes
Details
Publication Year 2021-03-19, Volume 24, Issue #3, Page 102161
Journal Title
iScience
Abstract
The proximity pattern and radial distribution of chromosome territories within spherical nuclei are random and non-random, respectively. Whether this distribution pattern is conserved in the partitioned or lobed nuclei of polymorphonuclear cells is unclear. Here we use chromosome paint technology to examine the chromosome territories of all 46 chromosomes in hundreds of single human neutrophils - an abundant and famously polymorphonuclear immune cell. By comparing the distribution of chromosomes to randomly shuffled controls and validating with orthogonal chromosome conformation capture technology, we show for the first time that human chromosomes randomly distribute to neutrophil nuclear lobes, while maintaining a non-random radial distribution within these lobes. Furthermore, we demonstrate that chromosome length correlates with three-dimensional volume not only in neutrophils but other human immune cells. This work demonstrates that chromosomes are largely passive passengers during the neutrophil lobing process but are able to subsequently maintain their macro-level organization within lobes.
Publisher
Cell Press
Keywords
chromosome organization; immunology; optical imaging; organizational aspects of cell biology
WEHI Research Division(s)
Immunology; Bioinformatics; Advanced Technology And Biology; Blood Cells And Blood Cancer; Population Health And Immunity
PubMed ID
33665577
Open Access at Publisher's Site
https://doi.org/10.1016/j.isci.2021.102161
Rights Notice
Refer to copyright notice on published article.


Creation Date: 2021-05-13 09:20:18
Last Modified: 2021-05-13 09:31:50
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