Evidence map›Paper›PMID 24824595›Full record

ArticlePloS one2014

Cyclic strain alters the expression and release of angiogenic factors by human tendon cells.

Rouhollah Mousavizadeh, Shahram Khosravi, Hayedeh Behzad, Robert G McCormack, Vincent Duronio, Alex Scott

Abstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing 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

19 citing papers in PubMed.

  1. Article
  2. Tendinopathy: The Interplay between Mechanical Stress, Inflammation, and Vascularity.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Review
  3. Article
  4. Article
  5. Article
  6. Research perspectives-Pipelines to human tendon transcriptomics.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2022
    Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Biofabrication of thick vascularized neo-pedicle flaps for reconstructive surgery.Translational research : the journal of laboratory and clinical medicine · 2019
    Review
  15. Article
  16. Review
  17. Article
  18. Review
  19. Tendon extracellular matrix damage, degradation and inflammation in response to in vitro overload exercise.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2015
    Article
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.

Rouhollah MousavizadehDepartment of Medicine, University of British Columbia, Vancouver, Canada; Department of Physical Therapy, University of British Columbia, Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, Vancouver, Canada.
Shahram KhosraviDepartment of Dermatology and Skin Science, University of British Columbia, Vancouver, Canada.
Hayedeh BehzadDepartment of Physical Therapy, University of British Columbia, Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, Vancouver, Canada.
Robert G McCormackDepartment of Orthopedic Surgery, University of British Columbia, Vancouver, Canada.
Vincent DuronioDepartment of Medicine, University of British Columbia, Vancouver, Canada.
Alex ScottDepartment of Physical Therapy, University of British Columbia, Centre for Hip Health and Mobility, Vancouver Coastal Health Research Institute, Vancouver, Canada.

Funding

Canadian Institutes of Health Research MOP-102476
6 · The paper itself

Abstract

Angiogenesis is associated with the tissue changes underlying chronic overuse tendinopathy. We hypothesized that repetitive, cyclic loading of human tendon cells would lead to increased expression and activity of angiogenic factors. We subjected isolated human tendon cells to overuse tensile loading using an in vitro model (1 Hz, 10% equibiaxial strain). We found that mechanically stimulated human tendon cells released factors that promoted in vitro proliferation and tube formation by human umbilical vein endothelial cells (HUVEC). In response to cyclic strain, there was a transient increase in the expression of several angiogenic genes including ANGPTL4, FGF-2, COX-2, SPHK1, TGF-alpha, VEGF-A and VEGF-C, with no change in anti-angiogenic genes (BAI1, SERPINF1, THBS1 and 2, TIMP1-3). Cyclic strain also resulted in the extracellular release of ANGPTL4 protein by tendon cells. Our study is the first report demonstrating the induction of ANGPTL4 mRNA and release of ANGPTL4 protein in response to cyclic strain. Tenocytes may contribute to the upregulation of angiogenesis during the development of overuse tendinopathy.

Indexed as

Analysis of VarianceAngiogenesis Inducing AgentsAngiopoietin-Like Protein 4AngiopoietinsBiomechanical PhenomenaBlotting, WesternCumulative Trauma DisordersCyclooxygenase 2DNA PrimersEnzyme-Linked Immunosorbent AssayFibroblast Growth Factor 2Flow CytometryGene Expression ProfilingGene Expression RegulationHumansHuman Umbilical Vein Endothelial CellsAngiogenesis Inducing AgentsAngiopoietin-Like Protein 4AngiopoietinsANGPTL4 protein, humanCyclooxygenase 2DNA PrimersFibroblast Growth Factor 2Phosphotransferases (Alcohol Group Acceptor)PTGS2 protein, humanSphingosine KinaseTransforming Growth Factor alphaVascular Endothelial Growth Factor AVascular Endothelial Growth Factor C

Identifiers

PMID24824595
PMCPMC4019633

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Registered trials

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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.