Evidence map›Paper›PMID 25300205›Full record

ArticleBMC research notes2014

Association between acquired resistance to PLX4032 (vemurafenib) and ATP-binding cassette transporter expression.

Martin Michaelis, Florian Rothweiler, Thomas Nerreter, Marijke van Rikxoort, Richard Zehner, Wilhelm G Dirks, Michael Wiese, Jindrich Cinatl

Open access · goldAbstract readComparative Study
In one paragraph

Article in BMC research notes, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-weighted citation impact, top 27% 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

7 citing papers in PubMed, 15 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

8 authors at 3 institutions in 2 countries.

Martin Michaelis
Florian Rothweiler
Thomas Nerreter
Marijke van Rikxoort
Richard Zehner
Wilhelm G Dirks
Michael Wiese
Jindrich CinatlInstitut für Medizinische Virologie, Klinikum der Goethe-Universität, Paul Ehrlich-Str, 40, Frankfurt am Main 60596, Germany. Cinatl@em.uni-frankfurt.de.
Goethe University Frankfurt · DELeibniz Institute DSMZ – German Collection of Microorganisms and Cell Cultures · DEUniversity of Bonn · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundVarious kinase inhibitors are known to be ATP-binding cassette (ABC) transporter substrates and resistance acquisition to kinase inhibitors has been associated to increased ABC transporter expression. Here, we investigated the role of the ABC transporters ABCB1, ABCC1, and ABCG2 during melanoma cell resistance acquisition to the V600-mutant BRAF inhibitors PLX4032 (vemurafenib) and PLX4720. PLX4032 had previously been shown to interfere with ABCB1 and ABCG2. PLX4720 had been demonstrated to interact with ABCB1 but to a lower extent than PLX4032.

findingsPLX4032 and PLX4720 affected ABCC1- and ABCG2-mediated drug transport in a similar fashion. In a panel of 16 V600E BRAF-mutated melanoma cell lines consisting of four parental cell lines and their sub-lines with acquired resistance to PLX4032, PLX4720, vincristine (cytotoxic ABCB1 and ABCC1 substrate), or mitoxantrone (cytotoxic ABCG2 substrate), we detected enhanced ABC transporter expression in 4/4 cytotoxic ABC transporter substrate-resistant, 3/4 PLX4720-resistant, and 1/4 PLX4032-resistant melanoma cell lines.

conclusionPLX4032 has the potential to induce ABC transporter expression but this potential is lower than that of PLX4720 or cytotoxic ABC transporter substrates. Since ABC transporters confer multi-drug resistance, this is of relevance for the design of next-line therapies.

Indexed as

Drug Resistance, MultipleDrug Resistance, NeoplasmAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily G, Member 2Cell Line, TumorDose-Response Relationship, DrugHumansIndolesMelanomaMutationNeoplasm ProteinsProtein Kinase InhibitorsProto-Oncogene Proteins B-rafABCB1 protein, humanABCG2 protein, humanAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily G, Member 2BRAF protein, humanIndolesmultidrug resistance-associated protein 1Neoplasm ProteinsPLX 4720Protein Kinase InhibitorsProto-Oncogene Proteins B-rafSulfonamidesVemurafenib

Identifiers

PMID25300205
PMCPMC4197243
OpenAlexW2151731835

What OpenQuestion holds

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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.