Evidence map›Paper›PMID 28413655›Full record

ArticleMolecular and clinical oncology2017

Functional analysis of polymorphisms in the COX-2 gene and risk of lung cancer.

Joyce L Moraes, Amanda B Moraes, Veronica Aran, Marcelo R Alves, Luciene Schluckbier, Mariana Duarte, Edson Toscano, Mauro Zamboni, Cinthya Sternberg, Emanuela de Moraes and 2 more

Open access · diamondAbstract read
In one paragraph

Article in Molecular and clinical oncology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 2 pooled it
1.0field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 11 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. COX-2 in lung cancer: Mechanisms, development, and targeted therapies.Chronic diseases and translational medicine · 2024
    Review
  4. Article
  5. Article
  6. 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

12 authors at 4 institutions in 2 countries.

Joyce L MoraesClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Amanda B MoraesClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Veronica AranClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Marcelo R AlvesEvandro Chagas Clinical Research Institute, Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil.
Luciene SchluckbierClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Mariana DuarteClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Edson ToscanoDepartment of Thoracic Surgery, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Mauro ZamboniDepartment of Thoracic Surgery, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Cinthya SternbergClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
Emanuela de MoraesClinical Research Division, Brazilian National Cancer Institute (INCA), Rio de Janeiro, Brazil.
José R Lapa E SilvaInstitute of Thoracic Medicine, Clementino Fraga Filho University Hospital, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
Carlos Gil FerreiraNational Clinical Cancer Research Network (RNPCC) SCTIE/MS, Rio de Janeiro, Brazil.
Instituto Nacional do Câncer · BRD’Or Institute for Research and Education · BRFundação Oswaldo Cruz · BRHospital Universitário Clementino Fraga Filho · BR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The enzyme cyclooxygenase 2 (COX-2) is known to be involved in tumorigenesis and metastasis in certain types of cancer. Nevertheless, the prognostic value of COX-2 overexpression and its polymorphisms in patients with non-small cell lung cancer (NSCLC) have yet to be fully elucidated. The aim of the present study was to investigate the association between the three most commonly studied COX-2 gene polymorphisms (-1195 G/A, -765 G/C and 8473 T/C) with COX-2 expression and lung cancer risk in a Brazilian cohort. In the present hospital based, case-control retrospective study, 104 patients with NSCLC and 202 cancer free control subjects were genotyped for -1195 G/A, -765 G/C and 8473 T/C polymorphisms using allelic discrimination with a reverse transcription quantitative polymerase chain reaction method. COX-2 mRNA expression was analyzed in surgically resected tumors from 34 patients with NSCLC. The results revealed that COX-2 expression levels were higher in tumor tissue compared with normal lung tissue. However, this overexpression of COX-2 was not associated with the patient outcome, and furthermore, none of the analyzed polymorphisms were associated with the risk of developing lung cancer, COX-2 overexpression, or the overall survival of the patients with NSCLC. Taken together, the findings described in the present study do not support a major role for COX-2 polymorphisms and COX-2 overexpression in lung carcinogenesis within the Brazilian population.

Indexed as

cohortcyclooxygenase 2lung cancerpolymorphismtumorigenesis

Identifiers

PMID28413655
PMCPMC5374939
OpenAlexW2587984825

What OpenQuestion holds

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LicenceCC BY-NC-ND
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Registered trials

None linked

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.