Evidence map›Paper›PMID 25813210›Full record

ArticleWorld journal of urology2015

GPX2 underexpression indicates poor prognosis in patients with urothelial carcinomas of the upper urinary tract and urinary bladder.

I-Wei Chang, Victor Chia-Hsiang Lin, Chih-Hsin Hung, Hua-Pin Wang, Yung-Yao Lin, Wen-Jeng Wu, Chun-Nung Huang, Ching-Chia Li, Wei-Ming Li, Jui-Yu Wu and 1 more

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Article in World journal of urology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

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0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

24 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
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  10. The beginning of GPX2 and 30 years later.Free radical biology & medicine · 2022
    Review
  11. Cell journal · 2022
    Article
  12. Redox signaling by glutathione peroxidase 2 links vascular modulation to metabolic plasticity of breast cancer.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Selenoproteins and Metastasis.Advances in cancer research · 2017
    Review
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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

11 authors.

I-Wei ChangInstitute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan.
Victor Chia-Hsiang LinInstitute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan.
Chih-Hsin HungInstitute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan.
Hua-Pin WangDepartment of Urology, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan.
Yung-Yao LinDepartment of Urology, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan.
Wen-Jeng WuDepartment of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Chun-Nung HuangDepartment of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Ching-Chia LiDepartment of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Wei-Ming LiDepartment of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
Jui-Yu WuCollege of Medicine, Taipei Medical University, Taipei, Taiwan.
Chien-Feng LiGraduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. angelo.p@yahoo.com.tw.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeOxidative stress is believed to be one of the important etiologies in carcinogenesis that has not been systemically investigated in urothelial carcinoma (UC). Through data mining from a published transcriptomic database of UC of urinary bladders (UBUCs) (GSE31684), glutathione peroxidase 2 (GPX2) was identified as the most significant downregulated gene among those response to oxidative stress (GO:0006979). We therefore analyze GPX2 transcript and protein expressions and its clinicopathological significance.

methodsReal-time RT-PCR assay was used to detect GPX2 mRNA level in 20 fresh UBUC specimens. Immunohistochemistry was used to determine GPX2 protein expression in 340 urothelial carcinomas of upper tracts (UTUCs) and 295 UBUCs with mean/median follow-up of 44.7/38.9 and 30.8/23.1 months, respectively. Its expression status was further correlated with clinicopathological features and evaluated for its impact on disease-specific survival and metastasis-free survival (MeFS).

resultsDecrease in GPX2 transcript level was associated with both higher pT and positive nodal status in 20 UBUCs (all p < 0.05). GPX2 protein underexpression was also significantly associated with advanced pT status, nodal metastasis, high histological grade, vascular invasion, and frequent mitoses in both groups of UCs (all p < 0.05). GPX2 underexpression not only predicted dismal DDS and MeFS at univariate analysis, but also implicated worse DDS (UTUC, p = 0.002; UBUC, p = 0.029) and MeFS (UTUC, p = 0.001; UBUC, p = 0.032) in multivariate analysis.

conclusionsGPX2 underexpression is associated with advanced tumor status and implicated unfavorable clinical outcome of UCs, suggesting its role in tumor progression and may serve as a theranostic biomarker of UCs.

Indexed as

Gene Expression Regulation, NeoplasticBiomarkers, TumorCarcinoma, Transitional CellChinaDisease-Free SurvivalDisease ProgressionGlutathione PeroxidaseHumansImmunohistochemistryNeoplasm StagingOxidative StressPrognosisReal-Time Polymerase Chain ReactionRNA, NeoplasmSurvival RateUrinary Bladder NeoplasmsBiomarkers, TumorGlutathione PeroxidaseGPX2 protein, humanRNA, NeoplasmGlutathione peroxidase 2GPX2PrognosisUrothelial carcinoma

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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.