Evidence map›Paper›PMID 25719830›Full record

ArticleBritish journal of cancer2015

Androgen receptor expression in circulating tumour cells from castration-resistant prostate cancer patients treated with novel endocrine agents.

M Crespo, G van Dalum, R Ferraldeschi, Z Zafeiriou, S Sideris, D Lorente, D Bianchini, D N Rodrigues, R Riisnaes, S Miranda and 6 more

Open access · hybridAbstract read
In one paragraph

Article in British journal of cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
10.3field-weighted citation impact, top 1% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

  1. Guideline
  2. Pharmacodynamic and Clinical Results from a Phase I/II Study of the HSP90 Inhibitor Onalespib in Combination with Abiraterone Acetate in Prostate Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2019
    Trial
  3. A Phase II Trial of Abiraterone Combined with Dutasteride for Men with Metastatic Castration-Resistant Prostate Cancer.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    Trial
  4. Article
  5. Circulating tumor cellsTranslational breast cancer research : a journal focusing on translational research in breast cancer · 2024
    Review
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  19. Observational
  20. Integrated Analysis of Multiple Biomarkers from Circulating Tumor Cells Enabled by Exclusion-Based Analyte Isolation.Clinical cancer research : an official journal of the American Association for Cancer Research · 2017
    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

16 authors at 3 institutions in 2 countries.

M CrespoSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
G van DalumDepartment of Medical Cell BioPhysics, MIRA Institute, University of Twente, 7522ND, Enschede, The Netherlands.
R Ferraldeschi1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
Z Zafeiriou1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
S Sideris1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
D Lorente1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
D Bianchini1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
D N RodriguesSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
R RiisnaesSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
S MirandaSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
I FigueiredoSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
P FlohrSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
K NowakowskaSection of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK.
J S de Bono1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
L W M M TerstappenDepartment of Medical Cell BioPhysics, MIRA Institute, University of Twente, 7522ND, Enschede, The Netherlands.
G Attard1] Section of Medicine, The Institute of Cancer Research, Sutton, Surrey, SM2 5NG, UK [2] Prostate Cancer Targeted Therapy Group and Drug Development Unit, The Royal Marsden NHS Foundation Trust, Sutton, Surrey, SM2 5NG, UK.
Institute of Cancer Research · GBUniversity of Twente · NLRoyal Marsden NHS Foundation Trust · GB

Funding

Cancer Research UK 13239Cancer Research UK A13239Prostate Cancer UK PG12-49Wellcome Trust
6 · The paper itself

Abstract

backgroundAbiraterone and enzalutamide are novel endocrine treatments that abrogate androgen receptor (AR) signalling in castration-resistant prostate cancer (CRPC). Here, we developed a circulating tumour cells (CTCs)-based assay to evaluate AR expression in real-time in CRPC and investigated nuclear AR expression in CTCs in patients treated with enzalutamide and abiraterone.

methodsCTCs were captured and characterised using the CellSearch system. An automated algorithm to identify CTCs and quantify AR expression was employed. The primary aim was to evaluate the association between CTC AR expression and prior treatment with abiraterone or enzalutamide.

resultsAR expression in CTCs was evaluated in 94 samples from 48 metastatic CRPC patients. We observed large intra-patient heterogeneity of AR expression in CTCs. Prior exposure to abiraterone or enzalutamide was not associated with a change in CTCs AR expression (median intensity and distribution of AR-positive classes). In support of this, we also confirmed maintained nuclear AR expression in tissue samples collected after progression on abiraterone. AR staining also identified additional AR-positive CD45-negative circulating cells that were CK-negative/weak and therefore missed using standard protocols. The number of these events correlated with traditional CTCs and was associated with worse outcome on univariate analysis.

conclusionsWe developed a non-invasive method to monitor AR nuclear expression in CTCs. Our studies confirm nuclear AR expression in CRPC patients progressing on novel endocrine treatments. Owing to the significant heterogeneity of AR expression in CTCs, studies in larger cohorts of patients are required to identify associations with outcome.

Indexed as

AdultAgedAged, 80 and overAndrostenesBenzamidesCell Line, TumorDisease ProgressionHumansMaleMiddle AgedNeoplasm MetastasisNeoplastic Cells, CirculatingNitrilesPhenylthiohydantoinProstatic Neoplasms, Castration-ResistantReceptors, AndrogenabirateroneAndrostenesAR protein, humanBenzamidesenzalutamideNitrilesPhenylthiohydantoinReceptors, Androgen

Identifiers

PMID25719830
PMCPMC4385957
OpenAlexW2060311843

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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.