Evidence map›Paper›PMID 37886531›Full record

ArticleResearch square2023

Local Volume Concentration, Packing Domains and Scaling Properties of Chromatin.

Marcelo Carignano, Martin Kröger, Luay Almassalha, Vasundhara Agrawal, Wing Shun Li, Emily M Pujadas, Rikkert J Nap, Vadim Backman, Igal Szleifer

Abstract readPreprint
In one paragraph

Article in Research square, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors.

Marcelo CarignanoDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
Martin KrögerMagnetism and Interface Physics & Computational Polymer Physics, Department of Materials, ETH Zurich, CH-8093 Zurich, Switzerland.
Luay AlmassalhaDepartment of Gastroenterology and Hepatology, Northwestern Memorial Hospital, Chicago IL 60611, USA.
Vasundhara AgrawalDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
Wing Shun LiApplied Physics Program, Northwestern University, Evanston, IL 60208, USA.
Emily M PujadasDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
Rikkert J NapDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
Vadim BackmanDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.
Igal SzleiferDepartment of Biomedical Engineering, Northwestern University, Evanston, IL 60208, USA.

Funding

Technology Development UnitU54CA268084 · NCI · NORTHWESTERN UNIVERSITY · PI Vadim Backman, Daniela E Matei · 2022 to 2026
$10.0M
Studying E-cadherin dynamics during extravasation and metastatic colonizationU54CA261694 · NCI · MASSACHUSETTS INSTITUTE OF TECHNOLOGY · PI ROGER D KAMM, Vivek Shenoy · 2021 to 2026
$9.1M
Translating buccal nanocytology for lung cancer screening into clinical practiceR01CA225002 · NCI · NORTHWESTERN UNIVERSITY · PI Vadim Backman, HARIHARAN SUBRAMANIAN · 2018 to 2026
$5.0M
Northwestern University Allergy Immunology Research Program (NUAIR)T32AI083216 · NIAID · NORTHWESTERN UNIVERSITY AT CHICAGO · PI Stephanie Caroline Eisenbarth, ADAM WILLIAMS · 2010 to 2026
$4.1M
Microvasculature in Colon Field Carcinogenesis: Clinical-Biological ImplicationsR01CA224911 · NCI · BOSTON MEDICAL CENTER · PI BACKMAN, VADIM, ROY, HEMANT K. · 2018 to 2022
$3.3M
Reducing Cancer Transcriptional Heterogeneity through Regulation of Chromatin StructureR01CA228272 · NCI · NORTHWESTERN UNIVERSITY · PI BACKMAN, VADIM, ROY, HEMANT K. · 2018 to 2022
$3.2M
Physical Genomics and Engineering Training ProgramT32GM142604 · NIGMS · NORTHWESTERN UNIVERSITY · PI BACKMAN, VADIM · 2021 to 2025
$1.9M
NCI NIH HHS R01 CA224911NCI NIH HHS R01 CA225002NCI NIH HHS R01 CA228272NCI NIH HHS U54 CA261694NCI NIH HHS U54 CA268084NIAID NIH HHS T32 AI083216NIGMS NIH HHS T32 GM142604
6 · The paper itself

Abstract

We propose the Self Returning Excluded Volume (SR-EV) model for the structure of chromatin based on stochastic rules and physical interactions that is able to capture the observed behavior across imaging and sequencing based measures of chromatin organization. The SR-EV model takes the return rules of the Self Returning Random Walk, incorporates excluded volume interactions, chain connectivity and expands the length scales range from 10 nm to over 1 micron. The model is computationally fast and we created thousands of configurations that we grouped in twelve different ensembles according to the two main parameters of the model. The analysis of the configurations was done in a way completely analogous to the experimental treatments used to determine chromatin volume concentration, contact probability, packing domain identification and size characterization, and packing scaling behavior. We find a robust agreement between the theoretical and experimental results. The overall organization of the model chromatin is corrugated, with dense packing domains alternating with a very dilute regions in a manner that resembles the mixing of two disordered bi-continuous phases. The return rules combined with excluded volume interactions lead to the formation of packing domains. We observed a transition from a short scale regime to a long scale regime occurring at genomic separations of ~ 4 × 10

Identifiers

PMID37886531
PMCPMC10602155

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Registered trials

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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.