Evidence map›Paper›PMID 28549423›Full record

ArticleBMC cancer2017

Glyoxalase 1 expression is associated with an unfavorable prognosis of oropharyngeal squamous cell carcinoma.

Nele Kreycy, Christiane Gotzian, Thomas Fleming, Christa Flechtenmacher, Niels Grabe, Peter Plinkert, Jochen Hess, Karim Zaoui

Open access · goldAbstract read
In one paragraph

Article in BMC cancer, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.1field-weighted citation impact, top 25% 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

15 citing papers in PubMed, 18 citations in OpenAlex.

  1. Deciphering the mechanisms by which probioticCurrent research in food science · 2026
    Article
  2. Article
  3. Methylglyoxal Formation-Metabolic Routes and Consequences.Antioxidants (Basel, Switzerland) · 2025
    Review
  4. Article
  5. Review
  6. Review
  7. Review
  8. Review
  9. The possible role of methylglyoxal metabolism in cancer.Journal of enzyme inhibition and medicinal chemistry · 2021
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. 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

8 authors at 4 institutions in 1 country.

Nele KreycyDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, D-69120, Heidelberg, Germany.
Christiane GotzianDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, D-69120, Heidelberg, Germany.
Thomas FlemingDepartment of Medicine I and Clinical Chemistry, University Hospital Heidelberg, Heidelberg, Germany.
Christa FlechtenmacherInstitute of Pathology, University Hospital Heidelberg, Heidelberg, Germany.
Niels GrabeMedical Oncology, National Center for Tumor Diseases (NCT) and Hamamatsu Tissue Imaging and Analysis Center (TIGA), BIOQUANT, Heidelberg, Germany.
Peter PlinkertDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, D-69120, Heidelberg, Germany.
Jochen HessDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg and Research Group Molecular Mechanisms of Head and Neck Tumors, German Cancer Research Center (DKFZ), Heidelberg, Germany.
Karim ZaouiDepartment of Otolaryngology, Head and Neck Surgery, University Hospital Heidelberg, Im Neuenheimer Feld 400, D-69120, Heidelberg, Germany. karim.zaoui@med.uni-heidelberg.de.
Heidelberg University · DEUniversity Hospital Heidelberg · DEGerman Cancer Research Center · DENational Center for Tumor Diseases · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGlyoxalase 1 is a key enzyme in the detoxification of reactive metabolites such as methylglyoxal and induced Glyoxalase 1 expression has been demonstrated for several human malignancies. However, the regulation and clinical relevance of Glyoxalase 1 in the context of head and neck squamous cell carcinoma has not been addressed so far.

methodsArgpyrimidine modification as a surrogate for methylglyoxal accumulation and Glyoxalase 1 expression in tumor cells was assessed by immunohistochemical staining of tissue microarrays with specimens from oropharyngeal squamous cell carcinoma patients (n = 154). Prognostic values of distinct Glyoxalase 1 staining patterns were demonstrated by Kaplan-Meier, univariate and multivariate Cox proportional hazard model analysis. The impact of exogenous methylglyoxal or a Glyoxalase 1 inhibitor on the viability of two established tumor cell lines was monitored by a colony-forming assay in vitro.

resultsGlyoxalase 1 expression in tumor cells of oropharyngeal squamous cell carcinoma patients was positively correlated with the presence of Argpyrimidine modification and administration of exogenous methylglyoxal induced Glyoxalase 1 protein levels in FaDu and Cal27 cells in vitro. Cal27 cells with lower basal and methylglyoxal-induced Glyoxalase 1 expression were more sensitive to the cytotoxic effect at high methylgyoxal concentrations and both cell lines showed a decrease in colony formation with increasing amounts of a Glyoxalase 1 inhibitor. A high and nuclear Glyoxalase 1 staining was significantly correlated with shorter progression-free and disease-specific survival, and served as an independent risk factor for an unfavorable prognosis of oropharyngeal squamous cell carcinoma patients.

conclusionsInduced Glyoxalase 1 expression is a common feature in the pathogenesis of oropharyngeal squamous cell carcinoma and most likely represents an adaptive response to the accumulation of cytotoxic metabolites. Oropharyngeal squamous cell carcinoma patients with a high and nuclear Glyoxalase 1 staining pattern have a high risk for treatment failure, but might benefit from pharmacological targeting Glyoxalase 1 activity.

Indexed as

AdultAgedBiomarkers, TumorCarcinoma, Squamous CellDisease-Free SurvivalFemaleHead and Neck NeoplasmsHumansKaplan-Meier EstimateLactoylglutathione LyaseMaleMiddle AgedOropharyngeal NeoplasmsPrognosisProportional Hazards ModelsSquamous Cell Carcinoma of Head and NeckBiomarkers, TumorGLO1 protein, humanLactoylglutathione LyaseArgpyrimidineColony-forming assayDisease-specific survivalGlyoxalase 1Head and neck cancerMethylglyoxalOropharyngeal squamous cell carcinomaReactive metabolitesTissue microarray

Identifiers

PMID28549423
PMCPMC5446730
OpenAlexW2620444437

What OpenQuestion holds

Textmetadata
LicenceCC BY
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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.