Evidence map›Paper›PMID 22902327›Full record

ArticleThe Journal of nutritional biochemistry2013

Piperine, a dietary phytochemical, inhibits angiogenesis.

Carolyn D Doucette, Ashley L Hilchie, Robert Liwski, David W Hoskin

Open access · greenAbstract read
In one paragraph

Article in The Journal of nutritional biochemistry, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
9.9field-weighted citation impact, top 2% 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

40 citing papers in PubMed, 123 citations in OpenAlex.

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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

4 authors at 1 institution in 1 country.

Carolyn D DoucetteDepartment of Pathology, Dalhousie University, Halifax, PO Box 15000, Nova Scotia, Canada.
Ashley L Hilchie
Robert Liwski
David W Hoskin
Dalhousie University · CA

Funding

CIHR
6 · The paper itself

Abstract

Angiogenesis plays an important role in tumor progression. Piperine, a major alkaloid constituent of black pepper, has diverse physiological actions including killing of cancer cells; however, the effect of piperine on angiogenesis is not known. Here we show that piperine inhibited the proliferation and G(1)/S transition of human umbilical vein endothelial cells (HUVECs) without causing cell death. Piperine also inhibited HUVEC migration and tubule formation in vitro, as well as collagen-induced angiogenic activity by rat aorta explants and breast cancer cell-induced angiogenesis in chick embryos. Although piperine binds to and activates the cation channel transient receptor potential vanilloid 1 (TRPV1), its effects on endothelial cells did not involve TRPV1 since the antiproliferative effect of piperine was not affected by TRPV1-selective antagonists, nor did HUVECs express detectable TRPV1 mRNA. Importantly, piperine inhibited phosphorylation of Ser 473 and Thr 308 residues of Akt (protein kinase B), which is a key regulator of endothelial cell function and angiogenesis. Consistent with Akt inhibition as the basis of piperine's action on HUVECs, inhibition of the phosphoinositide-3 kinase/Akt signaling pathway with LY-294002 also inhibited HUVEC proliferation and collagen-induced angiogenesis. Taken together, these data support the further investigation of piperine as an angiogenesis inhibitor for use in cancer treatment.

Indexed as

AlkaloidsAngiogenesis InhibitorsAnimalsAortaBenzodioxolesBreast NeoplasmsCell MovementCell ProliferationChick EmbryoChromonesDrug Screening Assays, AntitumorFemaleHumansHuman Umbilical Vein Endothelial CellsIn Vitro TechniquesMale2-(4-morpholinyl)-8-phenyl-4H-1-benzopyran-4-oneAlkaloidsAngiogenesis InhibitorsBenzodioxolesChromonesMorpholinesPiperidinespiperinePolyunsaturated AlkamidesProto-Oncogene Proteins c-aktSerineThreonineTRPV1 protein, humanTRPV Cation Channels

Identifiers

PMID22902327
PMCPMC3524266
OpenAlexW2008742438

What OpenQuestion holds

Textmetadata
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.