Evidence map›Paper›PMID 19435897›Full record

ArticleCancer research2009

The mechanical rigidity of the extracellular matrix regulates the structure, motility, and proliferation of glioma cells.

Theresa A Ulrich, Elena M de Juan Pardo, Sanjay Kumar

Abstract read
In one paragraph

Article in Cancer research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 468 papers.

0numbers the graph read from it
0cells of the map it votes in
468citing 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

468 citing papers in PubMed.

  1. Article
  2. Article
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  4. Article
  5. Review
  6. Article
  7. Article
  8. Understanding Glioblastoma Dynamics Using 3D Organoids and Engineered Extracellular Matrix.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2026
    Article
  9. Review
  10. Article
  11. Mechanotherapeutic Potential of Survivin in Glioblastoma.bioRxiv : the preprint server for biology · 2026
    Article
  12. Cell confinement initiates a delayed but heritable loss of chromosomes.bioRxiv : the preprint server for biology · 2026
    Article
  13. Mechanobiology of the Nucleolus.Biology of the cell · 2026
    Review
  14. Article
  15. Article
  16. Review
  17. Review
  18. Review
  19. Article
  20. Article

408 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

3 authors.

Theresa A UlrichDepartment of Bioengineering, University of California Berkeley and University of California San Francisco/University of California Berkeley Joint Graduate Group in Bioengineering, Berkeley, CA 94720-1762, USA.
Elena M de Juan Pardo
Sanjay Kumar

Funding

Cellular mechanobiology: Biophysics and therapeuticsDP2OD004213 · OD · UNIVERSITY OF CALIFORNIA BERKELEY · PI KUMAR, SANJAY · 2008 to 2008
$2.3M
NIH HHS 1DP2OD004213NIH HHS DP2 OD004213
6 · The paper itself

Abstract

Glioblastoma multiforme (GBM) is a malignant astrocytoma of the central nervous system associated with a median survival time of 15 months, even with aggressive therapy. This rapid progression is due in part to diffuse infiltration of single tumor cells into the brain parenchyma, which is thought to involve aberrant interactions between tumor cells and the extracellular matrix (ECM). Here, we test the hypothesis that mechanical cues from the ECM contribute to key tumor cell properties relevant to invasion. We cultured a series of glioma cell lines (U373-MG, U87-MG, U251-MG, SNB19, C6) on fibronectin-coated polymeric ECM substrates of defined mechanical rigidity and investigated the role of ECM rigidity in regulating tumor cell structure, migration, and proliferation. On highly rigid ECMs, tumor cells spread extensively, form prominent stress fibers and mature focal adhesions, and migrate rapidly. As ECM rigidity is lowered to values comparable with normal brain tissue, tumor cells appear rounded and fail to productively migrate. Remarkably, cell proliferation is also strongly regulated by ECM rigidity, with cells dividing much more rapidly on rigid than on compliant ECMs. Pharmacologic inhibition of nonmuscle myosin II-based contractility blunts this rigidity-sensitivity and rescues cell motility on highly compliant substrates. Collectively, our results provide support for a novel model in which ECM rigidity provides a transformative, microenvironmental cue that acts through actomyosin contractility to regulate the invasive properties of GBM tumor cells.

Indexed as

ActomyosinAnimalsCell AdhesionCell DivisionCell Line, TumorCell MovementCuesExtracellular MatrixFibronectinsGlioblastomaGliomaHumansMuscle ContractionNeoplasm InvasivenessStress, MechanicalActomyosinFibronectins

Identifiers

PMID19435897
PMCPMC2727355

What OpenQuestion holds

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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.