Evidence map›Paper›PMID 23884568›Full record

ArticlePharmaceutical research2014

Pharmacological modulation of cytotoxicity and cellular uptake of anti-cancer drugs by PDE5 inhibitors in lung cancer cells.

Qing Li, Yan Shu

Abstract read
In one paragraph

Article in Pharmaceutical research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 28 papers.

0numbers the graph read from it
0cells of the map it votes in
28citing papers in PubMed
0.7field-weighted citation impact, top 29% 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

28 citing papers in PubMed, 36 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

2 authors at 1 institution in 1 country.

Qing LiDepartment of Pharmaceutical Sciences, School of Pharmacy, University of Maryland at Baltimore, 20 Penn Street, HSFII Room 555, Baltimore, Maryland, 21201, USA.
Yan Shu
University of Maryland, Baltimore · US

Funding

University of Maryland Center of Excellence in Regulatory Science and InnovationU01FD004320 · FDA · UNIV OF MARYLAND, COLLEGE PARK · PI BENTLEY, WILLIAM E., POLLI, JAMES E · 2011 to 2016
$3.8M
Xenobiotic Transporter Regulation and IRIP FunctionR01GM099742 · NIGMS · UNIVERSITY OF MARYLAND BALTIMORE · PI SHU, YAN · 2012 to 2016
$1.6M
FDA HHS U01 FD004320FDA HHS U01FD004320NIGMS NIH HHS R01 GM099742NIGMS NIH HHS R01GM099742
6 · The paper itself

Abstract

purposePrevious research has led to the recognition of a cGMP signaling pathway governing drug transport. This study is to investigate whether inhibitors of phosphodiesterase type 5 (PDE5), which increase intracellular cGMP levels, modulate the cytotoxicity and uptake of anti-cancer drugs in cancer cells.

methodsThe experiments were conducted with and without PDE5 inhibitors: dipyridamole, vardenafil, and/or sildenafil. The cytotoxicity of doxorubicin, cisplatin and oxaliplatin was determined in multiple cancer cell lines derived from different tissues. The cellular uptake of structurally diverse compounds was further examined in lung cancer cells with and without various endocytotic inhibitors. The tumor accumulation and the anti-tumor effect of trastuzumab were examined in a lung cancer xenograft mouse model.

resultsDipyridamole could modulate the cytotoxicity of doxorubicin, cisplatin, and oxaliplatin in cancer cells. Particularly, PDE5 inhibitors increased cellular uptake of structurally diverse compounds into lung cancer cells both in vitro and in vivo. The effect of vardenafil on drug uptake could be blocked by endocytotic inhibitors. The growth of lung cancer xenograft in nude mice was significantly suppressed by addition of vardenafil to trastuzumab treatment.

conclusionPDE5 inhibitors may increase the efficacy of anti-cancer drugs by increasing endocytosis-mediated cellular drug uptake, and thus serve as adjuvant therapy for certain cancers such as lung cancer.

Indexed as

AnimalsAntineoplastic AgentsCell Line, TumorCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 5EndocytosisHeLa CellsHep G2 CellsHumansLung NeoplasmsMCF-7 CellsMiceMice, NudePhosphodiesterase 5 InhibitorsAntineoplastic AgentsCyclic GMPCyclic Nucleotide Phosphodiesterases, Type 5Phosphodiesterase 5 Inhibitors

Identifiers

PMID23884568
PMCPMC3864614
OpenAlexW1977308107

What OpenQuestion holds

Textmetadata
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.