Evidence map›Paper›PMID 21189132›Full record

ReviewAnti-cancer agents in medicinal chemistry2010

ABC transporters: unvalidated therapeutic targets in cancer and the CNS.

Robert W Robey, Paul R Massey, Laleh Amiri-Kordestani, Susan E Bates

Open access · greenAbstract readReview
In one paragraph

Review in Anti-cancer agents in medicinal chemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
4.4field-weighted citation impact, top 5% 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

50 citing papers in PubMed, 101 citations in OpenAlex.

  1. Article
  2. Review
  3. Multidrug Resistance: Are We Still Afraid of the Big Bad Wolf.Pharmaceuticals (Basel, Switzerland) · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. ABCG2 Expression as a Potential Survival Predictor in Human Gliomas.International journal of molecular sciences · 2024
    Article
  9. Review
  10. Metabolomic Analyses to Identify Candidate Biomarkers of Cystinosis.International journal of molecular sciences · 2023
    Article
  11. Article
  12. Article
  13. Review
  14. Article
  15. Review
  16. Article
  17. Article
  18. Reversible inhibition of efflux transporters by hydrogel microdevices.European journal of pharmaceutics and biopharmaceutics : official journal of Arbeitsgemeinschaft fur Pharmazeutische Verfahrenstechnik e.V · 2019
    Article
  19. Article
  20. Article
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

4 authors at 1 institution in 1 country.

Robert W RobeyMedical Oncology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD 20892, USA.
Paul R Massey
Laleh Amiri-Kordestani
Susan E Bates
National Institutes of Health · US

Funding

Investigation of the ABC Half-Transporter ABCG2ZIABC010622 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI BATES, SUSAN · 2009 to 2015
$2.3M
Intramural NIH HHS Z99 CA999999
6 · The paper itself

Abstract

The discovery of the multidrug transporter P-glycoprotein (Pgp) over 35 years ago in drug resistant cells prompted several decades of work attempting to overcome drug resistance by inhibition of drug efflux. Despite convincing laboratory data showing that drug transport can be inhibited in vitro, efforts to translate this discovery to the clinic have not succeeded. Since overexpression of Pgp and related transporters including ABCG2 and members of the ABCC family have been linked with poor outcome, it remains a reasonable hypothesis that this poor outcome is linked to reduction of drug exposure by efflux, and thus to drug resistance. In this review, we will discuss the question of whether ABC transporters mediate drug resistance in cancer through a reduction in drug accumulation in tumors, and whether the "Pgp inhibition hypothesis" might be wrong. The hypothesis, which holds that increased chemotherapy effectiveness can be achieved by inhibiting Pgp-mediated drug efflux has only been validated in model systems. Possible explanations for the failure to validate this clinically include the existence of other modulators of drug accumulation and uptake in tumors. Despite these difficulties, a potential role has emerged for drug transporters as therapeutic targets in the central nervous system (CNS). Both lines of investigation point to the need for imaging agents to facilitate the study of drug accumulation in human cancer. This is a critical need for targeted therapies where an important dose-response relationship is likely to exist, and where drug resistance renders many of the novel targeted agents ineffective in a subset of patients.

Indexed as

Drug Resistance, NeoplasmMolecular Targeted TherapyAnimalsAntineoplastic AgentsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1Blood-Brain BarrierCentral Nervous SystemClinical Trials as TopicDrug Resistance, MultipleHumansNeoplasmsPolymorphism, Single NucleotideTreatment OutcomeAntineoplastic AgentsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily B, Member 1

Identifiers

PMID21189132
PMCPMC3119022
OpenAlexW1967104159

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.