Cited by 1,478Hippo pathway signaling and YAP/TAZCellular Mechanics and InteractionsTGF-β signaling in diseases

Mechanotransduction and YAP-dependent matrix remodelling is required for the generation and maintenance of cancer-associated fibroblasts

Open access
Calvo, Fernando, Ege, Nil, Grande-Garcia, Araceli, Hooper, Steven, Jenkins, Robert P., Chaudhry, Shahid I., Harrington, Kevin, Williamson, Peter +3 more·2013·Nature Cell Biology

Abstract

To learn more about cancer-associated fibroblasts (CAFs), we have isolated fibroblasts from different stages of breast cancer progression and analysed their function and gene expression. These analyses reveal that activation of the YAP transcription factor is a signature feature of CAFs. YAP function is required for CAFs to promote matrix stiffening, cancer cell invasion and angiogenesis. Remodelling of the ECM and promotion of cancer cell invasion requires the actomyosin cytoskeleton. YAP regulates the expression of several cytoskeletal regulators, including ANLN and DIAPH3, and controls the protein levels of MYL9 (also known as MLC2). Matrix stiffening further enhances YAP activation, thus establishing a feed-forward self-reinforcing loop that helps to maintain the CAF phenotype. Actomyosin contractility and Src function are required for YAP activation by stiff matrices. Further, transient ROCK inhibition is able to disrupt the feed-forward loop, leading to a long-lasting reversion of the CAF phenotype.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1038/ncb2756

Cites

58 of 58 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Well-established activating signals for fibroblasts include TGFβ family ligands and LPA, which promote SMAD and SRF respectively, and converge to drive αSMA expression and increase contractile cytoskeleton activity.

    “Well-established activating signals for fibroblasts include TGFβ family ligands and the lipid mediator lysophosphatidic acid52–54, which promote the activity of the SMAD transcription factors and serum response factor (SRF), respectively, and converge to drive expression of the activated fibroblast marker αSMA as well as increase the activity of the contractile cytoskeleton6”

    From A framework for advancing our understanding of cancer-associated fibroblasts (2020) · cites this paper as [53]

    The Results section on actomyosin contractility (page unavailable) calls LPA and TGFβ pro-contractile stimuli and reports that they promote matrix remodelling in fibroblasts. The Results also reports increased SRF-associated gene expression in CAFs, but our copy does not establish the claimed TGFβ–SMAD and LPA–SRF pathways or show that these signals converge to induce αSMA expression. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Matricellular molecules such as CTGF and CYR61 and the contractile cytoskeleton cooperate to increase tissue stiffness, which further drives SRF-dependent and YAP1-dependent transcriptional programmes, locking CAFs into a self-sustaining positive-feedback loop.

    “Furthermore, matricellular molecules, such as CTGF and CYR61, and the contractile cytoskeleton cooperate to increase tissue stiffness, which further drives SRF-dependent and YAP1-dependent transcriptional programmes, locking CAFs into a self-sustaining positive-feedback loop53.”

    From A framework for advancing our understanding of cancer-associated fibroblasts (2020) · cites this paper as [53]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

    Experimental — accuracy not yet measured
  • In vitro studies have shown that fibroblast stretching can activate SRF-driven transcription and YAP1-TEAD-driven transcription.

    “In vitro studies have shown that fibroblast stretching, which may result from the hyperproliferation of transformed epithelial cells, can activate SRF-driven transcription and Yes-associated protein 1 (YAP1)–TEAD-driven transcription53,54,65,66.”

    From A framework for advancing our understanding of cancer-associated fibroblasts (2020) · cites this paper as [53]

    The Results section (“YAP is activated CAFs”; page unavailable) reports increased expression of genes associated with the mechanosensitive YAP/TAZ and SRF pathways in cultured fibroblasts. The Results section on actomyosin contractility also links matrix stiffness to YAP–TEAD association. The paper does not show that stretching fibroblasts activates both transcriptional pathways, or establish epithelial hyperproliferation as the cause of such stretching. (LLM, conf=0.84)

    Experimental — accuracy not yet measured
  • CAFs secrete MMPs including MMP-2, MMP-3, and MMP-9, or activate Yes-associated protein to promote ECM degradation and remodeling, EMT, and CSC stemness.

    “CAFs reportedly secrete matrix metalloproteinases (MMPs), including MMP-2, MMP-3, and MMP-9, or activate Yes-associated protein to promote ECM degradation and remodeling, EMT, and CSC stemness.283–287”

    From Drug repurposing for cancer therapy (2024) · cites this paper as [284]

    The Results section on YAP and the contractile actomyosin cytoskeleton reports that YAP enables CAF-driven ECM remodelling and cancer-cell invasion. The paper does not report secretion of MMP-2, MMP-3, or MMP-9, ECM degradation, or CAF-induced EMT; its Introduction associates YAP/TAZ activity with cancer stem-cell properties but does not establish that CAF YAP activation promotes CSC stemness. Page numbers were unavailable in our copy. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • Formation of context-dependent Yki/YAP-mediated signalling loops is a bona fide mechanism for tumour growth.

    “The biological significance of our findings is validated by other studies that show formation of context-dependent Yki/YAP-mediated signalling loops as a bona fide mechanism for tumour growth (68,69).”

    From A Tumour-Specific Molecular Network Promotes Tumour Growth in <i>Drosophila</i> by Enforcing a JNK-YKI Feedforward Loop (2023) · cites this paper as [68]

    The Results (‘A positive feedback loop involving actomyosin contractility sustains YAP activation’; page unavailable) and Discussion describe a YAP–matrix-stiffening feedback loop in cancer-associated fibroblasts. The Results (‘YAP is required for CAF function’; page unavailable) link YAP to tumour-promoting invasion and angiogenesis, but the copy does not establish that this loop drives tumour growth itself or examine Yki. (LLM, conf=0.86)

    Experimental — accuracy not yet measured

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. [30]Dupont S Role of YAP/TAZ in mechanotransduction Nature 474 179 183 21654799

Cited by

Sorted by citations

Authors
Calvo, F., Ege, N., Grande-Garcia, A., Hooper, S., Jenkins, R. P., Chaudhry, S. I., Harrington, K., Williamson, P., Moeendarbary, E., Charras, G., & Sahai, E.
Affiliations
  • Cancer Research UK (GB)
  • Queen Mary University of London (GB)
  • Institute of Cancer Research (GB)
  • St George's Hospital (GB)
  • London Centre for Nanotechnology (GB)
Corresponding author
Sahai, Erik
Venue
Nature Cell Biology
Published
2013-05-26
Volume
15
Issue
6
Pages
637-646
ISSN
  • 1465-7392 (ISSN-L)
  • 1476-4679
OpenAlex
W2033998652
Cited by
1,478
References
58
Citations by year
2026: 133 · 2025: 117 · 2024: 122 · 2023: 145 · 2022: 146 · 2021: 149 · 2020: 129 · 2019: 106 · 2018: 115 · 2017: 100 · 2016: 82 · 2015: 67 · 2014: 58 · 2013: 9
FWCI
41.66
Type
journal article
Language
en
Open access
Locations
  • Nature Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Cancer Research UK (15154, A5317)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hippo pathway signaling and YAP/TAZ
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
Keywords
cancer-associated fibroblasts, YAP, mechanotransduction, extracellular matrix remodeling, matrix stiffening, breast cancer progression, actomyosin contractility, Src kinase, ROCK inhibition, feed-forward loop, anillin, DIAPH3, MYL9, tumor invasion, angiogenesis
MeSH terms
YAP-Signaling Proteins, Actomyosin, Animals, Breast Neoplasms, Cells, Cultured, Enzyme Activation, Extracellular Matrix, Female, Fibroblasts, Humans, Actin Cytoskeleton, Microtubule-Associated Proteins, NADPH Dehydrogenase, Neoplasm Invasiveness, Neovascularization, Pathologic, Phosphoproteins, Phosphorylation, Disease Progression, Microscopy, Atomic Force, Cell Cycle Proteins, Myosin Light Chains, src-Family Kinases, Focal Adhesions, RNA Interference, RNA, Small Interfering, Mechanotransduction, Cellular, Adaptor Proteins, Signal Transducing, Mice, rho-Associated Kinases

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review