Evidence map›Paper›PMID 25907040›Full record

ArticleBiomaterials2015

Stiffening and unfolding of early deposited-fibronectin increase proangiogenic factor secretion by breast cancer-associated stromal cells.

Karin Wang, Roberto C Andresen Eguiluz, Fei Wu, Bo Ri Seo, Claudia Fischbach, Delphine Gourdon

Open access · hybridAbstract read
In one paragraph

Article in Biomaterials, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
5.7field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 81 citations in OpenAlex.

  1. Mechanical interplay between adipose tissues and disease progression.Bioengineering & translational medicine · 2026
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  18. The interactions between integrin αInternational journal of biological sciences · 2022
    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

6 authors at 1 institution in 1 country.

Karin WangDepartment of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA; Department of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA.
Roberto C Andresen EguiluzDepartment of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA.
Fei WuDepartment of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA.
Bo Ri SeoDepartment of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA.
Claudia FischbachDepartment of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA; Kavli Institute at Cornell for Nanoscale Science, Cornell University, Ithaca, NY 14853, USA.
Delphine GourdonDepartment of Materials Science and Engineering, Cornell University, Ithaca, NY 14853, USA; Department of Biomedical Engineering, Cornell University, Ithaca, NY 14853, USA. Electronic address: dg434@cornell.edu.
Cornell University · US

Funding

TRANS-NETWORK PROJECTSU54CA143876 · NCI · CORNELL UNIVERSITY · PI SHULER, MICHAEL L · 2009 to 2014
$12.6M
(PQA2) Interstitial stiffness as a physicochemical modulator of obesity-induced bR01CA185293 · NCI · CORNELL UNIVERSITY · PI FISCHBACH, CLAUDIA · 2014 to 2017
$1.3M
Zeiss LSM710 Confocal Microscope for Shared Imaging FacilityS10RR025502 · NCRR · CORNELL UNIVERSITY · PI WILLIAMS, REBECCA M · 2009 to 2009
$500k
NCI NIH HHS R01 CA185293NCI NIH HHS U54 CA143876NCRR NIH HHS 1S10RR025502-01NCRR NIH HHS S10 RR025502
6 · The paper itself

Abstract

Fibronectin (Fn) forms a fibrillar network that controls cell behavior in both physiological and diseased conditions including cancer. Indeed, breast cancer-associated stromal cells not only increase the quantity of deposited Fn but also modify its conformation. However, (i) the interplay between mechanical and conformational properties of early tumor-associated Fn networks and (ii) its effect on tumor vascularization remain unclear. Here, we first used the Surface Forces Apparatus to reveal that 3T3-L1 preadipocytes exposed to tumor-secreted factors generate a stiffer Fn matrix relative to control cells. We then show that this early matrix stiffening correlates with increased molecular unfolding in Fn fibers, as determined by Förster Resonance Energy Transfer. Finally, we assessed the resulting changes in adhesion and proangiogenic factor (VEGF) secretion of newly seeded 3T3-L1s, and we examined altered integrin specificity as a potential mechanism of modified cell-matrix interactions through integrin blockers. Our data indicate that tumor-conditioned Fn decreases adhesion while enhancing VEGF secretion by preadipocytes, and that an integrin switch is responsible for such changes. Collectively, our findings suggest that simultaneous stiffening and unfolding of initially deposited tumor-conditioned Fn alters both adhesion and proangiogenic behavior of surrounding stromal cells, likely promoting vascularization and growth of the breast tumor. This work enhances our knowledge of cell - Fn matrix interactions that may be exploited for other biomaterials-based applications, including advanced tissue engineering approaches.

Indexed as

3T3-L1 CellsAnimalsBreast NeoplasmsCell Line, TumorElastic ModulusExtracellular MatrixFibronectinsHumansMechanotransduction, CellularMiceNeovascularization, PathologicProtein DenaturationProtein FoldingStromal CellsVascular Endothelial Growth Factor AFibronectinsVascular Endothelial Growth Factor AIntegrin switchMatrix stiffnessMolecular unfoldingProangiogenic factor secretionTumor-conditioned fibronectin

Identifiers

PMID25907040
PMCPMC4659482
OpenAlexW1986242787

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.