Evidence map›Paper›PMID 31530935›Full record

ArticleOncogene2020

ABC-transporter upregulation mediates resistance to the CDK7 inhibitors THZ1 and ICEC0942.

Georgina P Sava, Hailing Fan, Rosemary A Fisher, Sabrina Lusvarghi, Sunil Pancholi, Suresh V Ambudkar, Lesley-Ann Martin, R Charles Coombes, Lakjaya Buluwela, Simak Ali

Open access · hybridAbstract read
In one paragraph

Article in Oncogene, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 20% 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

15 citing papers in PubMed, 25 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Super enhancer lncRNAs: a novel hallmark in cancer.Cell communication and signaling : CCS · 2024
    Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Pleiotropic Roles of ABC Transporters in Breast Cancer.International journal of molecular sciences · 2021
    Review
  15. CDK7 inhibitors as anticancer drugs.Cancer metastasis reviews · 2020
    Review
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 3 institutions in 2 countries.

Georgina P SavaDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
Hailing FanDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
Rosemary A FisherDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
Sabrina LusvarghiLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.
Sunil PancholiThe Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.ORCID http://orcid.org/0000-0002-0880-1588
Suresh V AmbudkarLaboratory of Cell Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, 20892, USA.ORCID http://orcid.org/0000-0002-2639-4955
Lesley-Ann MartinThe Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK.
R Charles CoombesDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
Lakjaya BuluwelaDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK.
Simak AliDivision of Cancer, Department of Surgery & Cancer, Imperial College London, Hammersmith Hospital Campus, London, UK. simak.ali@imperial.ac.uk.ORCID http://orcid.org/0000-0002-1320-0816
Hammersmith Hospital · GBInstitute of Cancer Research · GBNational Cancer Institute · US

Funding

Biochemical Analysis of Multidrug Resistance-linked Transport ProteinsZIABC010030 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI AMBUDKAR, SURESH · 2009 to 2025
$21.6M
Cancer Research UK 12011Cancer Research UK 18784Cancer Research UK A12011
6 · The paper itself

Abstract

The CDK7 inhibitors (CDK7i) ICEC0942 and THZ1, are promising new cancer therapeutics. Resistance to targeted drugs frequently compromises cancer treatment. We sought to identify mechanisms by which cancer cells may become resistant to CDK7i. Resistant lines were established through continuous drug selection. ABC-transporter copy number, expression and activity were examined using real-time PCR, immunoblotting and flow cytometry. Drug responses were measured using growth assays. ABCB1 was upregulated in ICEC0942-resistant cells and there was cross-resistance to THZ1. THZ1-resistant cells upregulated ABCG2 but remained sensitive to ICEC0942. Drug resistance in both cell lines was reversible upon inhibition of ABC-transporters. CDK7i response was altered in adriamycin- and mitoxantrone-resistant cell lines demonstrating ABC-transporter upregulation. ABCB1 expression correlated with ICEC0942 and THZ1 response, and ABCG2 expression with THZ2 response, in a panel of cancer cell lines. We have identified ABCB1 upregulation as a common mechanism of resistance to ICEC0942 and THZ1, and confirmed that ABCG2 upregulation is a mechanism of resistance to THZ1. The identification of potential mechanisms of CDK7i resistance and differences in susceptibility of ICEC0942 and THZ1 to ABC-transporters, may help guide their future clinical use.

Indexed as

ATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily G, Member 2Breast NeoplasmsCell Line, TumorCyclin-Dependent Kinase-Activating KinaseCyclin-Dependent KinasesDrug Resistance, NeoplasmFemaleGene Expression Regulation, NeoplasticGene Knockdown TechniquesHumansMCF-7 CellsNeoplasm ProteinsPatient SelectionPhenylenediaminesProtein Kinase InhibitorsABCB1 protein, humanABCG2 protein, humanATP Binding Cassette Transporter, Subfamily BATP Binding Cassette Transporter, Subfamily G, Member 2CDK7 protein, humanCyclin-Dependent Kinase-Activating KinaseCyclin-Dependent KinasesNeoplasm ProteinsPhenylenediaminesProtein Kinase InhibitorsPyrimidinesRNA, Small InterferingTHZ1 compound

Identifiers

PMID31530935
PMCPMC6962093
OpenAlexW2974581080

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.