Evidence map›Paper›PMID 32782617›Full record

ArticleOncology letters2020

Inhibition of Rac1 reverses enzalutamide resistance in castration-resistant prostate cancer.

Xiaoliang Chen, Lili Yin, Gan Qiao, Yanhua Li, Baoyuan Li, Yunfeng Bai, Feng Feng

Erratum issuedOpen access · diamondAbstract read
In one paragraph

Article in Oncology letters, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.3field-weighted citation impact, top 17% 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

10 citing papers in PubMed, 15 citations in OpenAlex.

  1. Article
  2. Review
  3. Review
  4. Early diagnosis and prognostic potential of RAC3 in bladder tumor.International urology and nephrology · 2024
    Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Xiaoliang ChenSchool of Medicine, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Lili YinSchool of Life Sciences, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Gan QiaoSchool of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China.
Yanhua LiSchool of Medicine, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Baoyuan LiSchool of Life Sciences, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Yunfeng BaiDepartment of Chemistry, School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Feng FengDepartment of Chemistry, School of Chemistry and Environmental Engineering, Shanxi Datong University, Datong, Shanxi 037009, P.R. China.
Shanxi Datong University · CNSouthwest Medical University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Enzalutamide, an androgen receptor inhibitor, has been clinically approved for the treatment of metastatic castration-resistant prostate cancer (CRPC) in the United States. However, patients only benefit from enzalutamide for a short period of time as resistance may develop. Therefore, it is vital to develop a novel strategy to overcome enzalutamide resistance. Ras-related C3 botulinum toxin substrate 1 (Rac1), which is commonly upregulated in human cancer types, has been recognized as a key molecular component in tumorigenesis, invasion and metastasis. However, the role of Rac1 in enzalutamide-resistance in prostate cancer (PCa) remains unknown. In the present study, Rac1 was demonstrated to be upregulated in enzalutamide-resistant PCa cells, and Rac1 knockdown inhibited enzalutamide-resistant cell proliferation and colony formation. Western blotting results indicated that enzalutamide treatment downregulated the expression levels of JNK and activated transcription factor 2, as well as enhanced the Bax/Bcl-2 ratio and induced cleavage of poly-ADP ribose polymerase. Moreover, knockdown of Rac1 in MR49F cells significantly inhibited cell migration and invasion via the downregulation of Snail and the upregulation of E-cadherin. The results of a nude mouse xenograft tumor model using 22RV1 cells demonstrated that enzalutamide inhibited tumor growth after Rac1 knockdown dramatically, compared to vehicle and single treatment groups. Therefore, the present study provided novel evidence that Rac1 may serve a crucial role in enzalutamide resistance, and that targeting Rac1 may be a potential approach for the treatment of CRPC.

Indexed as

castration-resistant prostate cancerenzalutamide resistanceepithelial-mesenchymal transitionRas-related C3 botulinum toxin substrate 1

Identifiers

PMID32782617
PMCPMC7400968
OpenAlexW3042179145

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

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.