Evidence map›Paper›PMID 24493792›Full record

ArticleOtolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery2014

Aquaporin-1 promoter hypermethylation is associated with improved prognosis in salivary gland adenoid cystic carcinoma.

Marietta Tan, Chunbo Shao, Justin A Bishop, Zhaoyong Feng, Bruce J Trock, William H Westra, Patrick K Ha

Abstract read
In one paragraph

Article in Otolaryngology--head and neck surgery : official journal of American Academy of Otolaryngology-Head and Neck Surgery, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
2.9field-weighted citation impact, top 10% 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

21 citing papers in PubMed, 34 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Article
  5. Review
  6. Aquaporin-mediated dysregulation of cell migration in disease states.Cellular and molecular life sciences : CMLS · 2023
    Review
  7. Review
  8. Ion Channel Dysregulation in Head and Neck Cancers: Perspectives for Clinical Application.Reviews of physiology, biochemistry and pharmacology · 2021
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Genomics of mucoepidermoid and adenoid cystic carcinomas.Laryngoscope investigative otolaryngology · 2018
    Review
  17. Article
  18. Article
  19. Review
  20. 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

7 authors at 1 institution in 1 country.

Marietta TanDepartment of Otolaryngology-Head and Neck Surgery, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA.
Chunbo Shao
Justin A Bishop
Zhaoyong Feng
Bruce J Trock
William H Westra
Patrick K Ha
Johns Hopkins University · US

Funding

Translational Research Central ServicesP30CA006973 · NCI · JOHNS HOPKINS UNIVERSITY · PI Rosalie Wollett · 1985 to 2026
$208.6M
The role of promoter hypermethylation in adenoid cystic carcinomaK08DE018463 · NIDCR · JOHNS HOPKINS UNIVERSITY · PI HA, PATRICK KYONGMIN · 2007 to 2011
$674k
NCI NIH HHS P30 CA006973NIDCR NIH HHS K08 DE018463PHS HHS K08-018463
6 · The paper itself

Abstract

objectivesAquaporin-1 (AQP1) is a candidate oncogene that is epigenetically modified in adenoid cystic carcinoma (ACC). We sought to (1) assess AQP1 promoter methylation and expression in an ACC cohort, (2) identify correlations between AQP1 and clinical outcomes, and (3) explore the role of AQP1 in tumor progression in vitro. STUDY

designLaboratory study, retrospective chart review.

settingAcademic medical center.

methodsDNA and RNA were isolated from ACC tumors and control salivary gland tissues. Quantitative methylation-specific polymerase chain reaction (PCR) was performed on bisulfite-treated DNA. Quantitative reverse transcription PCR was performed after cDNA synthesis. Cell lines stably overexpressing an AQP1 plasmid or empty vector were generated. Cell scratch and Matrigel invasion assays were performed. Retrospective chart review was performed for collection of clinical information.

resultsMethylation results from 77 tumors and 30 controls demonstrated that AQP1 was hypomethylated in tumors (P < .0001). Fifty-eight tumors (75.3%) displayed AQP1 hypomethylation compared with controls. AQP1 expression levels assessed in 58 tumors and 23 controls demonstrated a trend toward increased expression in tumors (P = .08). Univariate analysis revealed that AQP1 hypermethylation was associated with increased overall survival. No associations between AQP1 expression level and survival were found. AQP1 overexpression did not affect cell migratory or invasive capacities in vitro.

conclusionAQP1 promoter hypomethylation is common in ACC, and AQP1 tends to be overexpressed in these tumors. Increased AQP1 methylation is associated with improved prognosis on univariate analysis, but expression is not associated with outcomes. Further in vitro studies are necessary to clarify the role of AQP1 in ACC.

Indexed as

AdolescentAdultAgedAged, 80 and overAquaporin 1Carcinoma, Adenoid CysticDNA MethylationFemaleHumansMaleMiddle AgedPrognosisRetrospective StudiesReverse Transcriptase Polymerase Chain ReactionSalivary Gland NeoplasmsAquaporin 1adenoid cystic carcinomaepigeneticspromoter methylation

Identifiers

PMID24493792
PMCPMC4318231
OpenAlexW2040257419

What OpenQuestion holds

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LicenceTDM
Read underepoch 390

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.