Evidence map›Paper›PMID 22578167›Full record

ArticleCancer science2012

PDE5 inhibitors, sildenafil and vardenafil, reverse multidrug resistance by inhibiting the efflux function of multidrug resistance protein 7 (ATP-binding Cassette C10) transporter.

Jun-Jiang Chen, Yue-Li Sun, Amit K Tiwari, Zhi-Jie Xiao, Kamlesh Sodani, Dong-Hua Yang, Saraubh G Vispute, Wen-Qi Jiang, Si-Dong Chen, Zhe-Sheng Chen

Open access · bronzeAbstract read
In one paragraph

Article in Cancer science, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
6.4field-weighted citation impact, top 4% 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

24 citing papers in PubMed, 43 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

10 authors at 4 institutions in 2 countries.

Jun-Jiang ChenDepartment of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, St John's University, Jamaica, New York, USA.
Yue-Li Sun
Amit K Tiwari
Zhi-Jie Xiao
Kamlesh Sodani
Dong-Hua Yang
Saraubh G Vispute
Wen-Qi Jiang
Si-Dong Chen
Zhe-Sheng Chen
St. John's University · USFox Chase Cancer Center · USGuangdong Pharmaceutical University · CNSun Yat-sen University · CN

Funding

Targeting MRP7 to Overcome Drug Resistance for Ovarian Cancer Therapy by TaxanesR15CA143701 · NCI · ST. JOHN'S UNIVERSITY · PI CHEN, ZHE-SHENG · 2010 to 2010
$245k
NCI NIH HHS 1R15CA143701NCI NIH HHS R15 CA143701
6 · The paper itself

Abstract

Phosphodiesterase type 5 (PDE5) inhibitors are widely used in the treatment of male erectile dysfunction and pulmonary hypertension. Recently, several groups have evaluated the ability of PDE5 inhibitors for their anticancer activities. Previously, we had shown that sildenafil, vardenafil and tadalafil could reverse P-glycoprotein (ATP-binding cassette B1)-mediated MDR. In the present study, we determined whether these PDE5 inhibitors have the potential to reverse multidrug resistance protein 7 (MRP7; ATP-binding cassette C10)-mediated MDR. We found that sildenafil and vardenafil dose-dependently enhanced the sensitivity of MRP7-transfected HEK293 cells to paclitaxel, docetaxel and vinblastine, while tadalafil had only a minimal effect. Accumulation and efflux experiments demonstrated that sildenafil and vardenafil increased the intracellular accumulation of [(3)H]-paclitaxel by inhibiting the efflux of [(3 H]-paclitaxel in HEK/MRP7 cells. In addition, immunoblot and immunofluorescence analyses indicated that no significant alterations of MRP7 protein expression and localization in plasma membranes were found after treatment with sildenafil, vardenafil or tadalafil. These results demonstrate that sildenafil and vardenafil reverse MRP7-mediated a MDR through inhibition of the drug efflux function of MRP7. Our findings indicate a potentially novel use of PDE5 inhibitors as an adjuvant chemotherapeutic agent in clinical practice.

Indexed as

Antineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsDrug Resistance, MultipleFluorescent Antibody TechniqueHEK293 CellsHumansImidazolesImmunoblottingPhosphodiesterase 5 InhibitorsPiperazinesPurinesSildenafil CitrateSulfonesTriazinesVardenafil DihydrochlorideABCC10 protein, humanAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsImidazolesPhosphodiesterase 5 InhibitorsPiperazinesPurinesSildenafil CitrateSulfonesTriazinesVardenafil Dihydrochloride

Identifiers

PMID22578167
PMCPMC3407321
OpenAlexW1997742764

What OpenQuestion holds

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LicenceTDM
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.