Evidence map›Paper›PMID 26585467›Full record

SynthesisBMC cancer2015

Aberrant GSTP1 promoter methylation is associated with increased risk and advanced stage of breast cancer: a meta-analysis of 19 case-control studies.

Cheng Fang, Xue-Mei Wei, Xian-Tao Zeng, Fu-Bing Wang, Hong Weng, Xinghua Long

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMC cancer, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–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

19 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Transcriptional Activation ofFrontiers in oncology · 2019
    Article
  11. Article
  12. Methylation Profiles of BRCA1, RASSF1A and GSTP1 in Vietnamese Women with Breast CancerAsian Pacific journal of cancer prevention : APJCP · 2018
    Article
  13. DNA methylation profiles in cancer diagnosis and therapeutics.Clinical and experimental medicine · 2018
    Review
  14. Article
  15. Article
  16. Clinical epigenetics · 2017
    Article
  17. Article
  18. Article
  19. 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

6 authors.

Cheng FangDepartment of Laboratory Medicine, Center for Gene Diagnosis, Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P.R. China. pinky_cici@163.com.
Xue-Mei WeiDepartment of Nursing, Affiliated Hospital of North Sichuan Medical College, Nanchong, 637000, P.R. China. weixuemei750324@163.com.
Xian-Tao ZengDepartment of Laboratory Medicine, Center for Gene Diagnosis, Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P.R. China. zengxiantao1128@163.com.
Fu-Bing WangDepartment of Laboratory Medicine, Center for Gene Diagnosis, Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P.R. China. wfb20042002@sina.com.
Hong WengDepartment of Laboratory Medicine, Center for Gene Diagnosis, Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P.R. China. wengh92@163.com.
Xinghua LongDepartment of Laboratory Medicine, Center for Gene Diagnosis, Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan, 430071, P.R. China. longxinghuanwhu@163.com.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlutathione S-transferase P1 (GSTP1) has been reported to function as a tumor suppressor gene in various types of human cancers. Aberrant methylation of tumor-related genes at the promoter regions can inactivate genes, which is important in the carcinogenesis of breast cancer. However, the role of GSTP1 promoter methylation in the occurrence of breast cancer and its relationship with tumor stage and histological grade has not been fully elucidated. Thus, we carried out a meta-analysis to yield a more accurate association.

methodsA systematically literature search was made on PubMed, EMBASE and Web of Science databases for eligible studies. The odds ratio (OR) and 95 % confidence interval (95 % CI) were calculated by RevMan 5.2 software. Subgroup and sensitivity analyses were conducted to explore the source of heterogeneity.

resultsEventually, 17 articles involving 19 case-control studies were included in the present meta-analysis. Overall, the pooled results indicated that aberrant GSTP1 promoter methylation was significantly associated with the risk of breast cancer (OR = 7.85, 95 % CI = 5.12-12.01; Caucasians OR = 7.23, 95 % CI = 3.76-13.90 and Asians OR = 11.71, 95 % CI = 5.69-24.07). Furthermore, our results revealed that GSTP1 promoter methylation was more often observed in late-stage breast cancer patients compared with early-stage ones (OR = 1.84, 95 % CI = 1.32-2.58). However, no significant association was identified between GSTP1 promoter methylation and histological grade (OR = 0.74, 95 % CI = 0.43-1.26).

conclusionsThe results indicated that GSTP1 promoter methylation probably plays an important role in breast carcinogenesis, which could serve as an effective biomarker for the diagnosis and monitor of breast cancer.

Indexed as

DNA MethylationAsian PeopleBreast NeoplasmsCase-Control StudiesFemaleGenetic Predisposition to DiseaseGlutathione S-Transferase piHumansPromoter Regions, GeneticWhite PeopleGlutathione S-Transferase piGSTP1 protein, human

Identifiers

PMID26585467
PMCPMC4653831

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.