Evidence map›Paper›PMID 41013666›Full record

ArticleGenome biology2025

Differential regulation of mesoscale chromosome conformations in osteoblasts and osteosarcoma.

Madhoolika Bisht, Yu-Chieh Chung, Siou-Luan He, Sydney Willey, Benjamin D Sunkel, Meng Wang, Benjamin Z Stanton, Li-Chun Tu

Abstract read
In one paragraph

Article in Genome biology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

8 authors.

Madhoolika Bisht *Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA.
Yu-Chieh Chung *Department of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA.
Siou-Luan HeDepartment of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA.
Sydney WilleyDepartment of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA.
Benjamin D SunkelCenter for Childhood Cancer, Nationwide Children's Hospital, Columbus, OH, 43205, USA.
Meng WangCenter for Childhood Cancer, Nationwide Children's Hospital, Columbus, OH, 43205, USA.
Benjamin Z StantonDepartment of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA.
Li-Chun TuDepartment of Biological Chemistry and Pharmacology, The Ohio State University, Columbus, OH, 43210, USA. Tu.277@osu.edu.

Funding

Translational Therapeutics Research Program (TT)P30CA016058 · NCI · OHIO STATE UNIVERSITY · PI Daniel G. Stover · 1985 to 2026
$132.3M
Gene positioning and dynamic chromatin organization of the human genomeR35GM151095 · NIGMS · OHIO STATE UNIVERSITY · PI Li-Chun Tu · 2023 to 2026
$1.5M
Deciphering real-time dynamics of the human genome organization in response to DNA damage and gene expressionR00GM126810 · NIGMS · OHIO STATE UNIVERSITY · PI TU, LI-CHUN · 2019 to 2021
$747k
NCI NIH HHS P30 CA016058NIGMS NIH HHS R00 GM126810NIGMS NIH HHS R35 GM151095
6 · The paper itself

Abstract

backgroundChromosome conformation within the nucleus is essential for genome function. These have primarily been studied at the scale of loops and compartments, or at lower spatial resolution using traditional in situ hybridization in chemically fixed samples. However, the mesoscale organization of single chromosomes in vivo, shaped by the interplay between chromatin architectural proteins and histone modifications, remains partially understood. In this study, we interrogated the mesoscale conformations of interphase chromosomes in live human osteoblasts and transformed osteosarcoma cells, focusing on chromosome 19.

resultsChromosome conformations were quantified by the aspect ratio of the principal axes of gyration tensors. In osteoblasts, approximately 81% of chromosome 19 are observed to consist of regions characterized by highly extended organizations, with aspect ratios approximately four times greater than those of spheres. In contrast, in osteosarcoma cells, the chromosome displays an extensively collapsed conformation, with aspect ratios more closely approximately that of a sphere. In both cell types, the chromosome's conformation is bimodal and the balance between these two modes differs very significantly between the two cell types. While the mesoscopic conformation is considerably stable, it is superimposed on dynamic, smaller scale regions. Additional results reveal that this significant conformational shift is independent of the cell cycle but co-regulated by CTCF, cohesion, and H3K27 modifications.

conclusionsOur findings provide new insights into the coordinated complex regulatory mechanisms governing mesoscale chromosome organization in normal and transformed osteogenic tissues.

Indexed as

Nucleic Acid ConformationOsteoblastsOsteosarcomaBone NeoplasmsCCCTC-Binding FactorCell Line, TumorChromatinHistonesHumansInterphaseCCCTC-Binding FactorChromatinHistonesChromosome conformationChromosome dynamicsCRISPRLive-cell imagingOsteosarcoma

Identifiers

PMID41013666
PMCPMC12465978

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.