Evidence map›Paper›PMID 40527475›Full record

ArticleJournal of the Royal Society, Interface2025

Viscoelastic differences between isolated and live MCF7 cancer cell nuclei resolved with AFM microrheology.

Ellen Juel Pørtner, Anna Mularski, Tobias William Jarrett, Stine Lauritzen Sønder, Jesper Nylandsted, Adam Cohen Simonsen

Abstract read
In one paragraph

Article in Journal of the Royal Society, Interface, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing 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

2 citing papers in PubMed.

  1. Review
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Ellen Juel PørtnerDepartment of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense, Denmark.
Anna MularskiDepartment of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense, Denmark.
Tobias William JarrettDepartment of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense, Denmark.
Stine Lauritzen SønderDanish Cancer Institute, Membrane Integrity, Danish Cancer Society, Copenhagen, Denmark.
Jesper NylandstedDanish Cancer Institute, Membrane Integrity, Danish Cancer Society, Copenhagen, Denmark.
Adam Cohen SimonsenDepartment of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense, Denmark.ORCID 0000-0003-1937-8524

Funding

Novo Nordisk Fonden
6 · The paper itself

Abstract

Cell nuclei are commonly isolated for mechanobiology studies although isolated nuclei may display viscoelastic properties differing from those of live cells. Nuclear mechanics is generally dependent on the time scale of the applied load and cannot accurately be assessed by a simple elasticity parameter. Active microrheology with an atomic force microscope (AFMMR) is a versatile tool for probing nuclear mechanics and we employ the technique for exploring isolated and live-cell nuclei in MCF7 cells, including the significance of actin depolymerization. We successfully validate the method using polyacrylamide hydrogels with correction for cantilever drag in the fluid. The AFMMR results reveal that isolated and live-cell nuclei are equivalent to within a scaling factor, in their frequency-dependent modulus, with isolated nuclei being softer. The loss tangent reveals a transition from solid- to liquid-like behaviour occurring at higher frequency in isolated than in live-cell nuclei. Viscoelastic modelling using the Jeffreys model describes the frequency-dependent modulus of all measured nuclei. Model parameters display sensitivity to nuclei isolation and to actin depolymerization in live cells. Sections of the Jeffreys circuit can potentially be assigned to internal and external nucleus structures, respectively, thereby establishing a minimal mechanistic framework for interpreting microrheology data on cell nuclei.

Indexed as

Cell NucleusViscoelastic SubstancesAcrylic ResinsElastic ModulusHumansMCF-7 CellsMicroscopy, Atomic ForceRheologyAcrylic Resinspolyacrylamide gelsViscoelastic Substancesatomic force microscopycell nucleusMCF7microrheologyviscoelasticity

Identifiers

PMID40527475
PMCPMC12173521

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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.