Evidence map›Paper›PMID 22689955›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2012

Independent regulation of tumor cell migration by matrix stiffness and confinement.

Amit Pathak, Sanjay Kumar

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 285 papers.

0numbers the graph read from it
0cells of the map it votes in
285citing 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

285 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
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  7. Review
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  9. Review
  10. Article
  11. Amoeboid-mesenchymal transition and the proteolytic control of cancer invasion plasticity.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  12. Article
  13. The Nemp1-Nesprin complex mediates cellular responses to matrix mechanics.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  14. Article
  15. Review
  16. Fraternal cooperation of hierarchical cancer parallels metazoan multicellularity and eusociality.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  17. Modulation of the Mechanosensory Matrisome by Serotonergic Signaling.Results and problems in cell differentiation · 2026
    Review
  18. Article
  19. Review
  20. Measurement of cellular traction forces during confined migration.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article

225 more citing papers are in PubMed but not listed here.

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

2 authors.

Amit PathakDepartment of Bioengineering, University of California, Berkeley, CA 94720-1762, USA.
Sanjay Kumar

Funding

TRANS-NETWORK PROJECTSU54CA143836 · NCI · UNIVERSITY OF CALIFORNIA BERKELEY · PI LIPHARDT, JAN T. · 2009 to 2014
$15.1M
Cellular mechanobiology: Biophysics and therapeuticsDP2OD004213 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI KUMAR, SANJAY · 2008 to 2008
$2.3M
NCI NIH HHS 1U54CA143836NCI NIH HHS U54 CA143836NIH HHS 1DP2OD004213NIH HHS DP2 OD004213
6 · The paper itself

Abstract

Tumor invasion and metastasis are strongly regulated by biophysical interactions between tumor cells and the extracellular matrix (ECM). While the influence of ECM stiffness on cell migration, adhesion, and contractility has been extensively studied in 2D culture, extension of this concept to 3D cultures that more closely resemble tissue has proven challenging, because perturbations that change matrix stiffness often concurrently change cellular confinement. This coupling is particularly problematic given that matrix-imposed steric barriers can regulate invasion speed independent of mechanics. Here we introduce a matrix platform based on microfabrication of channels of defined wall stiffness and geometry that allows independent variation of ECM stiffness and channel width. For a given ECM stiffness, cells confined to narrow channels surprisingly migrate faster than cells in wide channels or on unconstrained 2D surfaces, which we attribute to increased polarization of cell-ECM traction forces. Confinement also enables cells to migrate increasingly rapidly as ECM stiffness rises, in contrast with the biphasic relationship observed on unconfined ECMs. Inhibition of nonmuscle myosin II dissipates this traction polarization and renders the relationship between migration speed and ECM stiffness comparatively insensitive to matrix confinement. We test these hypotheses in silico by devising a multiscale mathematical model that relates cellular force generation to ECM stiffness and geometry, which we show is capable of recapitulating key experimental trends. These studies represent a paradigm for investigating matrix regulation of invasion and demonstrate that matrix confinement alters the relationship between cell migration speed and ECM stiffness.

Indexed as

Cell MovementNeoplasm MetastasisCytoskeletonExtracellular MatrixHumansMyosin Type IITumor Cells, CulturedMyosin Type II

Identifiers

PMID22689955
PMCPMC3387066

What OpenQuestion holds

Textmetadata
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.