Evidence map›Paper›PMID 31288377›Full record

ArticleCells2019

Detection of AR-V7 in Liquid Biopsies of Castrate Resistant Prostate Cancer Patients: A Comparison of AR-V7 Analysis in Circulating Tumor Cells, Circulating Tumor RNA and Exosomes.

Mohammed Nimir, Yafeng Ma, Sarah A Jeffreys, Thomas Opperman, Francis Young, Tanzila Khan, Pei Ding, Wei Chua, Bavanthi Balakrishnar, Adam Cooper and 2 more

Abstract readComparative StudyEvaluation Study
In one paragraph

Article in Cells, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

49 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Review
  5. Review
  6. Review
  7. Review
  8. Review
  9. Biomarkers in Localized Prostate Cancer: From Diagnosis to Treatment.International journal of molecular sciences · 2025
    Review
  10. The RNA content of extracellular vesicles from gene-editedMolecular therapy. Methods & clinical development · 2025
    Article
  11. Review
  12. Review
  13. Article
  14. Review
  15. Review
  16. Liquid Biopsy in the Clinical Management of Cancers.International journal of molecular sciences · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Liquid biopsy to personalize treatment for metastatic prostate cancer.American journal of translational research · 2024
    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

12 authors.

Mohammed NimirCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.ORCID 0000-0001-8215-6882
Yafeng MaCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.ORCID 0000-0002-0522-8771
Sarah A JeffreysCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Thomas OppermanCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Francis YoungCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Tanzila KhanCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Pei DingCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Wei ChuaLiverpool Hospital, Elizabeth St & Goulburn St, Liverpool, NSW 2170, Australia.
Bavanthi BalakrishnarLiverpool Hospital, Elizabeth St & Goulburn St, Liverpool, NSW 2170, Australia.
Adam CooperCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.
Paul De SouzaCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia.ORCID 0000-0002-7380-1170
Therese M BeckerCentre for Circulating Tumour Cell Diagnostics and Research, Ingham Institute for Applied Medical Research, 1 Campbell St, Liverpool, NSW 2170, Australia. t.becker@unsw.edu.au.ORCID 0000-0002-5636-9902

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Detection of androgen receptor (AR) variant 7 (AR-V7) is emerging as a clinically important biomarker in castrate resistant prostate cancer (CRPC). Detection is possible from tumor tissue, which is often inaccessible in the advanced disease setting. With recent progress in detecting AR-V7 in circulating tumor cells (CTCs), circulating tumor RNA (ctRNA) and exosomes from prostate cancer patients, liquid biopsies have emerged as an alternative to tumor biopsy. Therefore, it is important to clarify whether these approaches differ in sensitivity in order to achieve the best possible biomarker characterization for the patient. In this study, blood samples from 44 prostate cancer patients were processed for CTCs and ctRNA with subsequent AR-V7 testing, while exosomal RNA was isolated from 16 samples and tested. Detection of AR and AR-V7 was performed using a highly sensitive droplet digital PCR-based assay. AR and AR-V7 RNA were detectable in CTCs, ctRNA and exosome samples. AR-V7 detection from CTCs showed higher sensitivity and has proven specificity compared to detection from ctRNA and exosomes. Considering that CTCs are almost always present in the advanced prostate cancer setting, CTC samples should be considered the liquid biopsy of choice for the detection of this clinically important biomarker.

Indexed as

AgedAged, 80 and overAlternative SplicingBiomarkers, TumorCell-Free Nucleic AcidsExosomesHumansLiquid BiopsyMaleMiddle AgedNeoplastic Cells, CirculatingProstatic Neoplasms, Castration-ResistantProtein IsoformsReceptors, AndrogenRNA, NeoplasmSensitivity and SpecificityAR protein, humanBiomarkers, TumorCell-Free Nucleic AcidsProtein IsoformsReceptors, AndrogenRNA, NeoplasmARAR-V7CTCctRNAexosomeprostate cancer

Identifiers

PMID31288377
PMCPMC6678978

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.