Evidence map›Paper›PMID 25105301›Full record

ArticleMolecular medicine (Cambridge, Mass.)2014

Lapatinib antagonizes multidrug resistance-associated protein 1-mediated multidrug resistance by inhibiting its transport function.

Shao-lin Ma, Ya-peng Hu, Fang Wang, Zhen-cong Huang, Yi-fan Chen, Xiao-kun Wang, Li-wu Fu

Open access · goldAbstract read
In one paragraph

Article in Molecular medicine (Cambridge, Mass.), 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

20 citing papers in PubMed, 44 citations in OpenAlex.

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  10. Increased [EJNMMI research · 2021
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  14. Review
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  17. Detection approaches for multidrug resistance genes of leukemia.Drug design, development and therapy · 2017
    Review
  18. Article
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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

7 authors at 2 institutions in 1 country.

Shao-lin MaCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Ya-peng HuCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Fang WangCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Zhen-cong HuangCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Yi-fan ChenCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Xiao-kun WangCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Li-wu FuCollaborative Innovation Center for Cancer Medicine, State Key Laboratory of Oncology in South China, Cancer Center of Sun Yat-Sen University, Guangzhou, China.
Sun Yat-sen University · CNSun Yat-sen University Cancer Center · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lapatinib, a tyrosine kinase inhibitor, is used in the treatment of advanced or metastatic breast cancer overexpressing human epidermal receptor 2 (HER2). Lapatinib can modulate the function of ATP-binding cassette (ABC) transporters (ABCB1 and ABCG2), which are the major mechanism responsible for multidrug resistance (MDR) in cancer. In this study, we investigated the effect of lapatinib on multidrug resistance-associated protein 1 (MRP1 [ABCC1]), MRP2 (ABCC2), MRP4 (ABCC4) and lung relative resistance protein (LRP) drug efflux pumps. We demonstrated that lapatinib could enhance the efficacy of conventional chemotherapeutic agents in MRP1-overexpressing cells in vitro and in vivo, but no effect in MRP2-, MPR4- and LRP-overexpressing cells. Furthermore, lapatinib significantly increased the accumulation of rhodamine 123 (Rho123) and doxorubicin (DOX) in MRP1-overexpressing cells. However, lapatinib did not alter the protein or mRNA expression levels of MRP1. Further studies showed that the level of phosphorylation of AKT and extracellular signal-regulated protein kinases 1 and 2 (ERK1/2) were not altered at the indicated concentrations of lapatinib. In conclusion, lapatinib enhanced the efficacy of conventional chemotherapeutic agents in MRP1-overexpressing cells by inhibiting MRP1 transport function without altering the level of AKT or ERK1/2 phosphorylation. These findings will encourage the clinical research of lapatinib combined with conventional chemotherapeutic drugs in MRP1-overexpressing cancer patients.

Indexed as

AnimalsAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsBiological TransportCell Line, TumorCell SurvivalCisplatinDoxorubicinDrug Resistance, MultipleDrug Resistance, NeoplasmDrug SynergismExtracellular Signal-Regulated MAP KinasesHEK293 CellsHumansLapatinibMiceABCC2 protein, humanAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsCisplatinDoxorubicinExtracellular Signal-Regulated MAP KinasesLapatinibmultidrug resistance-associated protein 1Multidrug Resistance-Associated Protein 2Proto-Oncogene Proteins c-aktQuinazolinesVincristine

Identifiers

PMID25105301
PMCPMC4212010
OpenAlexW1802025420

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.