Evidence map›Paper›PMID 33882318›Full record

ArticleCell reports2021

Mechanosensitive smooth muscle cell phenotypic plasticity emerging from a null state and the balance between Rac and Rho.

Shefali Talwar, Aayush Kant, Tina Xu, Vivek B Shenoy, Richard K Assoian

Open access · goldAbstract read
In one paragraph

Article in Cell reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.7field-weighted citation impact, top 10% of its field
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

24 citing papers in PubMed, 33 citations in OpenAlex.

  1. Review
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  8. Decoding Vascular Senescence: Cellular Insights and Therapeutic Strategies.International journal of biological sciences · 2026
    Review
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  15. Biophysical control of plasticity and patterning in regeneration and cancer.Cellular and molecular life sciences : CMLS · 2023
    Review
  16. Article
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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

5 authors at 2 institutions in 1 country.

Shefali TalwarCenter for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA 19104, USA; Departments of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA.
Aayush KantCenter for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA 19104, USA; Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
Tina XuDepartments of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA.
Vivek B ShenoyCenter for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA 19104, USA; Materials Science and Engineering, University of Pennsylvania, Philadelphia, PA 19104, USA.
Richard K AssoianCenter for Engineering MechanoBiology, University of Pennsylvania, Philadelphia, PA 19104, USA; Departments of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Philadelphia, PA 19104, USA. Electronic address: assoian@pennmedicine.upenn.edu.
Translational Therapeutics (United States) · USUniversity of Pennsylvania · US

Funding

ECM stiffness, mechanotransduction, and cell cyclingR01HL137232 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI ASSOIAN, RICHARD · 2018 to 2021
$1.7M
NHLBI NIH HHS R01 HL137232
6 · The paper itself

Abstract

Reversible differentiation of vascular smooth muscle cells (VSMCs) plays a critical role in vascular biology and disease. Changes in VSMC differentiation correlate with stiffness of the arterial extracellular matrix (ECM), but causal relationships remain unclear. We show that VSMC plasticity is mechanosensitive and that both the de-differentiated and differentiated fates are promoted by the same ECM stiffness. Differential equations developed to model this behavior predicted that a null VSMC state generates the dual fates in response to ECM stiffness. Direct measurements of cellular forces, proliferation, and contractile gene expression validated these predictions and showed that fate outcome is mediated by Rac-Rho homeostasis. Rac, through distinct effects on YAP and TAZ, is required for both fates. Rho drives the contractile state alone, so its level of activity, relative to Rac, drives phenotypic choice. Our results show how the cellular response to a single ECM stiffness generates bi-stability and VSMC plasticity.

Indexed as

Adaptation, PhysiologicalActinsAdaptor Proteins, Signal TransducingAnimalsCell DifferentiationCell ProliferationGene Expression RegulationMaleMechanotransduction, CellularMiceMice, Inbred C57BLMuscle, Smooth, VascularMyocytes, Smooth MuscleNeuropeptidesPhenotypePrimary Cell CultureActinsAdaptor Proteins, Signal Transducingalpha-smooth muscle actin, mouseNeuropeptidesrac1 GTP-Binding ProteinRac1 protein, mouserhoA GTP-Binding ProteinRhoA protein, mouseWwtr1 protein, mouseYap1 protein, mouseYAP-Signaling Proteinscomputational simulationcontractile forcedifferentiationemergent behaviormathematical modelingmechanotransductionMKLproliferationYAP/TAZ

Identifiers

PMID33882318
PMCPMC8142933
OpenAlexW3154483924

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

None linked

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.