Evidence map›Paper›PMID 22049911›Full record

ArticleBritish journal of pharmacology2012

Apigenin, a plant-derived flavone, activates transient receptor potential vanilloid 4 cation channel.

Xin Ma, Dongxu He, Xiaochen Ru, Yun Chen, Yanfei Cai, Iain C Bruce, Qiang Xia, Xiaoqiang Yao, Jian Jin

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.

0numbers the graph read from it
0cells of the map it votes in
39citing papers in PubMed
1.9field-weighted citation impact, top 18% 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

39 citing papers in PubMed, 70 citations in OpenAlex.

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  11. Kinin BPharmaceutics · 2023
    Article
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  17. Secondary Metabolites of Plants as Modulators of Endothelium Functions.International journal of molecular sciences · 2021
    Review
  18. Review
  19. TRPV4: A Physio and Pathophysiologically Significant Ion Channel.International journal of molecular sciences · 2020
    Review
  20. Review
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

9 authors at 3 institutions in 2 countries.

Xin MaDepartment of Cellular and Molecular Pharmacology, Jiangnan University, Wuxi, China. maxin@jiangnan.edu.cn
Dongxu He
Xiaochen Ru
Yun Chen
Yanfei Cai
Iain C Bruce
Qiang Xia
Xiaoqiang Yao
Jian Jin
Jiangnan University · CNZhejiang University · CNHealth First · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

background and purposeTransient receptor potential vanilloid 4 (TRPV4) is a Ca(2+) -permeable channel with multiple modes of activation. Apigenin is a plant-derived flavone, which has potential preventive effects on the development of cardiovascular disease. We set out to explore the effects of apigenin on TRPV4 channel activity and its role in vasodilatation. EXPERIMENTAL APPROACH: The effects of apigenin (0.01-30 µM) on TPRV4 channels were investigated in HEK293 cells over-expressing TRPV4, rat primary cultured mesenteric artery endothelial cells (MAECs) and isolated small mesenteric arterial segments using whole-cell patch clamp, fluorescent Ca(2+) imaging, intracellular recording and pressure myography. KEY

resultsWhole-cell patch clamp and fluorescent Ca(2+) imaging in HEK cells over-expressing TRPV4 showed that apigenin concentration-dependently stimulated the TRPV4-mediated cation current and Ca(2+) influx. In MAECs, apigenin stimulated Ca(2+) influx in a concentration-dependent manner. These increases in cation current and Ca(2+) influx were markedly inhibited by TRPV4-specific blockers and siRNAs. Furthermore, pressure myography and intracellular recording in small third-order mesenteric arteries showed that apigenin dose-dependently evoked smooth muscle cell membrane hyperpolarization and subsequent vascular dilatation, which were significantly inhibited by TRPV4-specific blockers. TRPV4 blocker or charybdotoxin (200 nM) plus apamin (100 nM) diminished the apigenin-induced dilatation. CONCLUSION AND IMPLICATIONS: This is the first study to demonstrate the selective stimulation of TRPV4 by apigenin. Apigenin was found to activate TRPV4 channels in a dose-dependent manner in HEK cells over-expressing TRPV4 and in native endothelial cells. In rat small mesenteric arteries, apigenin acts on TRPV4 in endothelial cells to induce EDHF-mediated vascular dilatation.

Indexed as

AnimalsApigeninCalciumDose-Response Relationship, DrugEndothelial CellsHEK293 CellsHumansMaleMesenteric ArteriesMuscle, Smooth, VascularPatch-Clamp TechniquesRatsRats, Sprague-DawleyTRPV Cation ChannelsVasodilationApigeninCalciumTRPV4 protein, humanTrpv4 protein, ratTRPV Cation Channels

Identifiers

PMID22049911
PMCPMC3415659
OpenAlexW1837722041

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.