Evidence map›Paper›PMID 25552257›Full record

ArticleCurrent cancer drug targets2015

Procyanidin B2 3,3″-di-O-gallate inhibits endothelial cells growth and motility by targeting VEGFR2 and integrin signaling pathways.

Rahul Kumar, Gagan Deep, Michael F Wempe, Rajesh Agarwal, Chapla Agarwal

Open access · greenAbstract read
In one paragraph

Article in Current cancer drug targets, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
0.6field-weighted citation impact, top 30% 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

12 citing papers in PubMed, 19 citations in OpenAlex.

  1. Article
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  6. Review
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  8. Article
  9. PKM2 is the target of proanthocyanidin B2 during the inhibition of hepatocellular carcinoma.Journal of experimental & clinical cancer research : CR · 2019
    Article
  10. Review
  11. Article
  12. 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

5 authors at 1 institution in 1 country.

Rahul Kumar
Gagan Deep
Michael F Wempe
Rajesh Agarwal
Chapla AgarwalUniversity of Colorado Denver, 12850 E. Montview Blvd, C238, Aurora, CO 80045, USA. Chapla.agarwal@ucdenver.edu.
University of Colorado Denver · US

Funding

University of Colorado Cancer Center Support Grant - Lung Cancer Patient-Derived Xenografts with Autologous Human Immune SystemsP30CA046934 · NCI · UNIVERSITY OF COLORADO DENVER · PI James V Degregori · 1988 to 2026
$117.0M
Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
Prostate Cancer Prevention by Procyanidins in Grape Seed ExtractR01CA091883 · NCI · UNIVERSITY OF COLORADO DENVER · PI AGARWAL, CHAPLA · 2003 to 2012
$3.3M
NCATS NIH HHS UL1 TR001082NCI NIH HHS P30 CA046934NCI NIH HHS P30CA046934NCI NIH HHS R01 CA091883NCI NIH HHS R01 CA91883
6 · The paper itself

Abstract

Targeting angiogenesis, one of the hallmarks of carcinogenesis, using non-toxic phytochemicals has emerged as a translational opportunity for angioprevention and to control advanced stages of malignancy. Herein, we investigated the inhibitory effects and associated mechanism/s of action of Procyanidin B2-3,3″-di- O-gallate (B2G2), a major component of grape seed extract, on human umbilical vein endothelial cells (HUVECs) and human prostate microvascular endothelial cells (HPMECs). Our results showed that B2G2 (10-40 μM) inhibits growth and induces death in both HUVECs and HPMECs. Additional studies revealed that B2G2 causes a G1 arrest in cell cycle progression of HUVECs by down-regulating cyclins (D1 and A), CDKs (Cdk2 and Cdc2) and Cdc25c phosphatase and up-regulating CDK inhibitors (p21 and p27) expression. B2G2 also induced strong apoptotic death in HUVECs through increasing p53, Bax and Smac/Diablo expression while decreasing Bcl-2 and survivin levels. Additionally, B2G2 inhibited the growth factors-induced capillary tube formation in HUVECs and HPMECs. Interestingly, conditioned media (CCM) from prostate cancer (PCA) cells (LNCaP and PC3) grown under normoxic (~21% O2) and hypoxic (1% O2) conditions significantly enhanced the tube formation in HUVECs, which was compromised in presence of conditioned media from B2G2-treated PCA cells. B2G2 also inhibited the motility and invasiveness of both HUVECs and HPMECs. Mechanistic studies showed that B2G2 targets VEGFR2/PI3K/Akt and integrin signaling molecules which are important for endothelial cells survival, proliferation, tube formation and motility. Overall, we report that B2G2 inhibits several attributes of angiogenesis in cell culture; therefore, it warrants further investigation for efficacy for angioprevention and cancer control.

Indexed as

AnthocyaninsApoptosisCell CycleCell MovementCell ProliferationCell SurvivalEndothelial CellsHumansHuman Umbilical Vein Endothelial CellsImmunoblottingIntegrinsMaleNeovascularization, PathologicProstateProstatic NeoplasmsSignal TransductionAnthocyaninsIntegrinsprocyanidin B2-3,3'-di-O-gallateVascular Endothelial Growth Factor Receptor-2

Identifiers

PMID25552257
PMCPMC4586152
OpenAlexW2171120324

What OpenQuestion holds

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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.