Evidence map›Paper›PMID 35280667›Full record

ArticleTranslational andrology and urology2022

Urinary exosome-based androgen receptor-variant 7 detection in metastatic castration-resistant prostate cancer patients.

Chao Wang, Xiang Liu, Hongyan Li, Libo Zhao, Guanyi Kong, Jing Chen, Zhi Li, Jianfei Qi, Ye Tian, Fengbo Zhang

Open access · diamondAbstract read
In one paragraph

Article in Translational andrology and urology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed, 1 pooled it
1.8field-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

5 citing papers in PubMed, 1 synthesis or guideline pooled it, 12 citations in OpenAlex.

  1. Pooled it
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  3. Review
  4. Article
  5. 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

10 authors at 3 institutions in 2 countries.

Chao WangDepartment of Urology, Beijing Pinggu Hospital, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Xiang LiuEcho Biotech Co., Ltd, Beijing, China.
Hongyan LiEcho Biotech Co., Ltd, Beijing, China.
Libo ZhaoEcho Biotech Co., Ltd, Beijing, China.
Guanyi KongEcho Biotech Co., Ltd, Beijing, China.
Jing ChenEcho Biotech Co., Ltd, Beijing, China.
Zhi LiEcho Biotech Co., Ltd, Beijing, China.
Jianfei QiDepartment of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD, USA.
Ye TianDepartment of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Fengbo ZhangDepartment of Urology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
Capital Medical University · CNBeijing Friendship Hospital · CNUniversity of Maryland, Baltimore · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Androgen receptor variant 7 (AR-V7) detection provides important information for the clinical management of abiraterone in metastatic castration-resistant prostate cancer (mCRPC). We performed a non-invasive urine-derived exosomal AR-V7 analysis of mCRPC patients. Methods: A total of 34 mCRPC patients were recruited including 16 patients treated with abiraterone (ABI) with stable prostate-specific antigen (PSA)/radiograph response (the ABI-Sta group) and 18 were resistant to abiraterone (the ABI-Res group). Urine was collected from patients and healthy control patients for the analysis. Exosomal ribonucleic acid was isolated from urine. Urinary exosome-based androgen receptor-variant 7 was detected by quantitative real-time polymerase chain reaction assay. Characteristics of patients and survival data were collected. The correlation between AR-V7 expression and the therapeutic effect/survival outcomes of abiraterone was analyzed. Results: Urine is the ideal biological sample for exosome separation and AR full-length analysis. Positive urine-derived exosomal AR-V7 was detected in 32.4% (11 of 34) of the mCRPC patients' urine samples. Positive AR-V7 was more common in the ABI-Res patients than the ABI-Sta patients (50.0% Conclusions: The present study showed that the detection of urine-derived exosomal AR-V7 provides a sensitive and feasible clinical workflow. The predicting role of urine-derived exosomal AR-V7 in mCRPC patients should be further verified using studies with greater sample sizes.

Indexed as

abirateroneAndrogen receptor (AR)castration-resistant prostate cancer (PCa)exosomesplicing variant

Identifiers

PMID35280667
PMCPMC8899142
OpenAlexW4212965150

What OpenQuestion holds

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Registered trials

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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.