Cited by 63Angiogenesis and VEGF in CancerIon Channels and ReceptorsCalcium signaling and nucleotide metabolism

TRPV4 channel activation selectively inhibits tumor endothelial cell proliferation

Open access
Thoppil, Roslin J., Adapala, Ravi K., Cappelli, Holly C., Kondeti, Vinay, Dudley, Andrew C., Gary Meszaros, J., Paruchuri, Sailaja, Thodeti, Charles K.·2015·Scientific Reports

Abstract

Endothelial cell proliferation is a critical event during angiogenesis, regulated by both soluble factors and mechanical forces. Although the proliferation of tumor cells is studied extensively, little is known about the proliferation of tumor endothelial cells (TEC) and its contribution to tumor angiogenesis. We have recently shown that reduced expression of the mechanosensitive ion channel TRPV4 in TEC causes aberrant mechanosensitivity that result in abnormal angiogenesis. Here, we show that TEC display increased proliferation compared to normal endothelial cells (NEC). Further, we found that TEC exhibit high basal ERK1/2 phosphorylation and increased expression of proliferative genes important in the G1/S phase of the cell cycle. Importantly, pharmacological activation of TRPV4, with a small molecular activator GSK1016790A (GSK), significantly inhibited TEC proliferation, but had no effect on the proliferation of NEC or the tumor cells (epithelial) themselves. This reduction in TEC proliferation by TRPV4 activation was correlated with a decrease in high basal ERK1/2 phosphorylation. Finally, using a syngeneic tumor model revealed that TRPV4 activation, with GSK, significantly reduced endothelial cell proliferation in vivo. Our findings suggest that TRPV4 channels regulate tumor angiogenesis by selectively inhibiting tumor endothelial cell proliferation.

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/srep14257

Cites

30 of 30 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?

  • Using simple, direct modulation of TRPV4 with GSK101 in a 3D microfluidic system, vascular integrity can be tuned to recapitulate known TRPV4 physiological functions in vivo, especially in pulmonary edema, and achieve vascular leakiness comparable with previous MTM studies using tumor cells.

    “Using this simple, direct modulation of TRPV4 with GSK101 in a 3D micro fl uidic system, we can therefore tune the vascular integrity to recapitulate known TRPV4 physiological functions in vivo, especially in pulmonary edema, 28,30,51,52 and achieve vascular leakiness in a manner that is comparable with previous MTM studies using tumor cells. 2,53”

    From Rapid Assessment of Nanoparticle Extravasation in a Microfluidic Tumor Model (2019) · cites this paper as [51]

    The Discussion (page unavailable) reports that GSK activation of TRPV4 normalizes tumor vasculature, supporting the cited comparison to tumor-vessel studies in general. It does not report vascular leakiness or establish that the degree of leakiness is comparable to the citing study’s 3D microfluidic system. The pulmonary-edema portion is attached to other citations. (LLM, conf=0.82)

    Experimental — accuracy not yet measured
  • HUVECs may not entirely recapitulate all known roles for TRPV4 in tumor vasculature.

    “HUVECs may not entirely recapitulate all known roles for TRPV4 in tumor vasculature. 24,28,35,51,53,66”

    From Rapid Assessment of Nanoparticle Extravasation in a Microfluidic Tumor Model (2019) · cites this paper as [51]

    The Results (page unavailable) report that tumor endothelial cells proliferated more than normal endothelial cells and that TRPV4 activation did not affect normal endothelial-cell proliferation. This supports the caution that normal endothelial cells may not capture TRPV4's roles in tumor vasculature, but the study did not examine HUVECs specifically or establish the full range of those roles. (LLM, conf=0.83)

    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

Cited by

Sorted by citations

Authors
Thoppil, R. J., Adapala, R. K., Cappelli, H. C., Kondeti, V., Dudley, A. C., Gary Meszaros, J., Paruchuri, S., & Thodeti, C. K.
Affiliations
  • Kent State University (US)
  • University of Akron (US)
  • University of North Carolina at Chapel Hill (US)
Corresponding author
Thodeti, Charles K.
Venue
Scientific Reports
Published
2015-09-21
Volume
5
Issue
1
Pages
14257-14257
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2328403892
Cited by
63
References
30
Citations by year
2025: 4 · 2024: 8 · 2023: 4 · 2022: 7 · 2021: 9 · 2020: 7 · 2019: 10 · 2018: 7 · 2017: 5 · 2016: 2
FWCI
2.03
Type
journal article
Language
en
Open access
Locations
  • Scientific Reports (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Carolina Digital Repository (University of North Carolina at Chapel Hill) (submittedVersion)
  • UNC Libraries
Funders
  • American Heart Association (14GRNT20380935)
  • Northeast Ohio Medical University
  • National Cancer Institute (R01CA177875)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Life Sciences › Neuroscience › Sensory Systems › Ion Channels and Receptors
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Physiology › Calcium signaling and nucleotide metabolism
Keywords
TRPV4, tumor endothelial cells, endothelial cell proliferation, tumor angiogenesis, mechanosensitive ion channels, ERK1/2 phosphorylation, GSK1016790A, G1/S cell cycle, syngeneic mouse model
MeSH terms
Animals, Antineoplastic Agents, Leucine, Neoplasms, Neovascularization, Pathologic, Sulfonamides, Up-Regulation, MAP Kinase Signaling System, Endothelial Cells, Cell Proliferation, TRPV Cation Channels, Mice

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