Evidence map›Paper›PMID 22937733›Full record

SynthesisBMC cancer2012

The contribution of the ABCG2 C421A polymorphism to cancer susceptibility: a meta-analysis of the current literature.

Pin Chen, Lin Zhao, Peng Zou, Haitao Xu, Ailin Lu, Peng Zhao

Abstract readMeta-Analysis
In one paragraph

Synthesis in BMC cancer, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing 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

14 citing papers in PubMed.

  1. Article
  2. Tumor-acquired somatic mutation affects conformation to abolish ABCG2-mediated drug resistance.Drug resistance updates : reviews and commentaries in antimicrobial and anticancer chemotherapy · 2024
    Article
  3. Study of Breast Cancer Resistance Protein ABCG2 C421A Single Nucleotide Polymorphism RS2231142 in Multiple Myeloma.Indian journal of hematology & blood transfusion : an official journal of Indian Society of Hematology and Blood Transfusion · 2022
    Article
  4. Review
  5. Article
  6. Review
  7. The contribution ofOncoTargets and therapy · 2019
    Article
  8. Article
  9. Oncotarget · 2017
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. 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.

Pin ChenDepartment of neurosurgery, the First Affiliated Hospital, Nanjing Medical University, Nanjing, China.
Lin Zhao
Peng Zou
Haitao Xu
Ailin Lu
Peng Zhao

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundABCG2, also known as BCRP, is a half ATP-binding cassette (ABC) transporter that localizes to plasma membranes. Recently, a number of studies have investigated the relationship between the C421A polymorphism in ABCG2 and cancer risk in multiple populations and various types of cancers; however, this relationship remains unclear. Therefore, we performed a meta-analysis to further explore this association.

methodsThe meta-analysis incorporated 10 studies involving a total of 3593 cases and 5875 controls. Odds ratios (ORs) and 95% confidence intervals (CIs) were calculated based on the date extracted from the studies to evaluate the strength of association. We also analyzed the heterogeneity and sensitivity of each report and the publication bias of the studies.

resultsOverall, our results showed that there appeared to be a significant association between the ABCG2 C421A polymorphism and decreased cancer susceptibility (heterozygote-AC versus CC: OR = 0.759, 95%CI = 0.620-0.930; dominant effects model-AA/AC versus CC: OR = 0.771, 95%CI = 0.634-0.938; additive effects model-A allele versus C allele: OR = 0.809, 95%CI = 0.687-0.952). Similarly, decreased cancer risk was also found after stratification of the SNP data by cancer type, ethnicity and source of controls in heterozygote model, dominant effects model and additive effects model.

conclusionsWe found that the ABCG2 C421A polymorphism is a protective factor for developing cancer. The same relationship was found when the studies were stratified by cancer type, ethnicity and source of controls.

Indexed as

Genetic Predisposition to DiseasePolymorphism, Single NucleotideAllelesATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Genetic HeterogeneityHumansNeoplasm ProteinsNeoplasmsPublication BiasABCG2 protein, humanATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Neoplasm Proteins

Identifiers

PMID22937733
PMCPMC3488524

What OpenQuestion holds

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LicenceCC BY
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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.