Evidence map›Paper›PMID 24843171›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2014

Fluid shear stress threshold regulates angiogenic sprouting.

Peter A Galie, Duc-Huy T Nguyen, Colin K Choi, Daniel M Cohen, Paul A Janmey, Christopher S Chen

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 196 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
196citing papers in PubMed, 1 pooled it
–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

196 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
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  6. 4D force patterning enables spatial control of angiogenesis.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  7. Hemodynamic Metrics and Arterial Dysfunction: Insights From a Novel Microfluidic Device.International journal for numerical methods in biomedical engineering · 2026
    Article
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136 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

6 authors.

Peter A GalieDepartments of Bioengineering,Physiology, and.
Duc-Huy T NguyenChemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104;
Colin K ChoiDepartments of Bioengineering.
Daniel M CohenDepartments of Bioengineering.
Paul A JanmeyPhysiology, and.
Christopher S ChenDepartments of Bioengineering,Chemical and Biomolecular Engineering, University of Pennsylvania, Philadelphia, PA 19104;Department of Biomedical Engineering, Boston University, Boston, MA 02215; andThe Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA 02115 chencs@bu.edu.

Funding

Multidisciplinary Training in Cardiovascular BiologyT32HL007954 · NHLBI · UNIVERSITY OF PENNSYLVANIA · PI DAVIES, PETER FRANCIS · 2000 to 2019
$9.9M
Tissue Chips for Rare Disease: Adding Timothy Syndrome to the HeLIVaSkCa platformUH3EB017103 · NIBIB · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI VUNJAK-NOVAKOVIC, GORDANA · 2014 to 2016
$7.1M
REGULATION OF ANGIOGENESIS BY MICROENVIRONMENTAL CUESR01EB000262 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI CHEN, CHRISTOPHER S · 2002 to 2023
$6.2M
Engineering Multicellular Tissue Structure, Function, and VascularizationR01EB008396 · NIBIB · UNIVERSITY OF PENNSYLVANIA · PI BHATIA, SANGEETA N., CHEN, CHRISTOPHER S · 2009 to 2018
$5.8M
Integrated heart-liver-vascular systems for drug testing in human health and diseUH2EB017103 · NIBIB · COLUMBIA UNIV NEW YORK MORNINGSIDE · PI VUNJAK-NOVAKOVIC, GORDANA · 2012 to 2013
$1.7M
Using micropost arrays to measure traction forces during dendritic cell motilityR01GM104287 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI HAMMER, DANIEL A · 2013 to 2016
$1.4M
NHLBI NIH HHS HL007954NHLBI NIH HHS T32 HL007954NIBIB NIH HHS EB00262NIBIB NIH HHS EB017103NIBIB NIH HHS EB08396NIBIB NIH HHS R01 EB000262NIBIB NIH HHS R01 EB008396NIBIB NIH HHS UH2 EB017103NIBIB NIH HHS UH3 EB017103
6 · The paper itself

Abstract

The density and architecture of capillary beds that form within a tissue depend on many factors, including local metabolic demand and blood flow. Here, using microfluidic control of local fluid mechanics, we show the existence of a previously unappreciated flow-induced shear stress threshold that triggers angiogenic sprouting. Both intraluminal shear stress over the endothelium and transmural flow through the endothelium above 10 dyn/cm(2) triggered endothelial cells to sprout and invade into the underlying matrix, and this threshold is not impacted by the maturation of cell-cell junctions or pressure gradient across the monolayer. Antagonizing VE-cadherin widened cell-cell junctions and reduced the applied shear stress for a given transmural flow rate, but did not affect the shear threshold for sprouting. Furthermore, both transmural and luminal flow induced expression of matrix metalloproteinase 1, and this up-regulation was required for the flow-induced sprouting. Once sprouting was initiated, continuous flow was needed to both sustain sprouting and prevent retraction. To explore the potential ramifications of a shear threshold on the spatial patterning of new sprouts, we used finite-element modeling to predict fluid shear in a variety of geometric settings and then experimentally demonstrated that transmural flow guided preferential sprouting toward paths of draining interstitial fluid flow as might occur to connect capillary beds to venules or lymphatics. In addition, we show that luminal shear increases in local narrowings of vessels to trigger sprouting, perhaps ultimately to normalize shear stress across the vasculature. Together, these studies highlight the role of shear stress in controlling angiogenic sprouting and offer a potential homeostatic mechanism for regulating vascular density.

Indexed as

Models, BiologicalAdenoviridaeCapillariesCell MovementEndothelial CellsFinite Element AnalysisGene SilencingHumansHuman Umbilical Vein Endothelial CellsHydrophobic and Hydrophilic InteractionsMatrix Metalloproteinase 1Mechanotransduction, CellularMicrofluidicsMicroscopy, Electron, TransmissionNeovascularization, PhysiologicStress, MechanicalMatrix Metalloproteinase 1MMP1 protein, humanangiogenesisforcemechanotransductionmigrationmorphogenesis

Identifiers

PMID24843171
PMCPMC4050561

What OpenQuestion holds

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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.