Evidence map›Paper›PMID 19552816›Full record

ArticleBMC urology2009

Expression of multidrug resistance markers ABCB1 (MDR-1/P-gp) and ABCC1 (MRP-1) in renal cell carcinoma.

Naomi Walsh, Annemarie Larkin, Susan Kennedy, Lisa Connolly, Jo Ballot, Wei Ooi, Giuseppe Gullo, John Crown, Martin Clynes, Lorraine O'Driscoll

Open access · goldAbstract read
In one paragraph

Article in BMC urology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed
1.9field-weighted citation impact, top 14% 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

38 citing papers in PubMed, 90 citations in OpenAlex.

  1. Article
  2. Review
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  4. miRNAs as short non-coding RNAs in regulating doxorubicin resistance.Journal of cell communication and signaling · 2023
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  9. Landscape of Immunotherapy in Genitourinary Malignancies.Advances in experimental medicine and biology · 2021
    Review
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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 2 institutions in 1 country.

Naomi WalshNational Institute for Cellular Biotechnology, Dublin City University, Glasnevin, Dublin 9, Ireland. naomi.walsh@dcu.ie
Annemarie Larkin
Susan Kennedy
Lisa Connolly
Jo Ballot
Wei Ooi
Giuseppe Gullo
John Crown
Martin Clynes
Lorraine O'Driscoll
Dublin City University · IESt. Vincent's University Hospital · IE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRenal cell carcinoma patients respond poorly to conventional chemotherapy, this unresponsiveness may be attributable to multidrug resistance (MDR). The mechanisms of MDR in renal cancer are not fully understood and the specific contribution of ABC transporter proteins which have been implicated in the chemoresistance of various cancers has not been fully defined in this disease.

methodsIn this retrospective study the expression of two of these transporter efflux pumps, namely MDR-1 P-gp (ABCB1) and MRP-1 (ABCC1) were studied by immunohistochemistry in archival material from 95 renal cell carcinoma patients.

resultsIn the first study investigating MDR-1 P-gp and MRP-1 protein expression patterns in renal cell carcinoma patients, high levels of expression of both efflux pumps are observed with 100% of tumours studied showing MDR-1 P-gp and MRP-1 positivity.

conclusionAlthough these findings do not prove a causal role, the high frequency of tumours expressing these efflux pumps suggests that they may be important contributors to the chemoresistance of this tumour type.

Indexed as

AgedAged, 80 and overAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1Biomarkers, TumorCarcinoma, Renal CellFemaleGene Expression Regulation, NeoplasticHumansKidney NeoplasmsMaleMiddle AgedNeoplasm ProteinsTumor Cells, CulturedABCB1 protein, humanAntineoplastic AgentsATP-Binding Cassette, Sub-Family C ProteinsATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily B, Member 1Biomarkers, Tumormultidrug resistance-associated protein 1Neoplasm Proteins

Identifiers

PMID19552816
PMCPMC2723136
OpenAlexW2125905978

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.