Evidence map›Paper›PMID 25634994›Full record

ArticleClinical cancer research : an official journal of the American Association for Cancer Research2015

Loss of SOD3 (EcSOD) Expression Promotes an Aggressive Phenotype in Human Pancreatic Ductal Adenocarcinoma.

Brianne R O'Leary, Melissa A Fath, Andrew M Bellizzi, Jennifer E Hrabe, Anna M Button, Bryan G Allen, Adam J Case, Sean Altekruse, Brett A Wagner, Garry R Buettner and 9 more

Open access · greenAbstract read
In one paragraph

Article in Clinical cancer research : an official journal of the American Association for Cancer Research, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.5field-weighted citation impact, top 4% 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

45 citing papers in PubMed, 71 citations in OpenAlex.

  1. Targeting the Barriers Driving Immune Exclusion.Pharmaceuticals (Basel, Switzerland) · 2026
    Review
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Overexpression of Extracellular Superoxide Dismutase 3 Inhibits Cancer Cell Growth and Migration in Colorectal Cancer.The Turkish journal of gastroenterology : the official journal of Turkish Society of Gastroenterology · 2024
    Article
  9. Review
  10. Article
  11. Review
  12. Article
  13. Copper in the tumor microenvironment and tumor metastasis.Journal of clinical biochemistry and nutrition · 2022
    Article
  14. Review
  15. Article
  16. Impact of EcSOD Perturbations in Cancer Progression.Antioxidants (Basel, Switzerland) · 2021
    Review
  17. ROS and TGFβ: from pancreatic tumour growth to metastasis.Journal of experimental & clinical cancer research : CR · 2021
    Review
  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

19 authors at 3 institutions in 1 country.

Brianne R O'LearyDepartment of Surgery, University of Iowa, Iowa City, Iowa.
Melissa A FathDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Andrew M BellizziDepartment of Pathology, University of Iowa, Iowa City, Iowa.
Jennifer E HrabeDepartment of Surgery, University of Iowa, Iowa City, Iowa.
Anna M ButtonDepartment of Biostatistics, University of Iowa, Iowa City, Iowa.
Bryan G AllenDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Adam J CaseDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Sean AltekruseNational Cancer Institute, Bethesda, Maryland.
Brett A WagnerDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Garry R BuettnerDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Charles F LynchDepartment of Epidemiology, University of Iowa, Iowa City, Iowa.
Brenda Y HernandezUniversity of Hawaii Cancer Center, Honolulu, Hawaii.
Wendy CozenUniversity of Southern California, Los Angeles, California.
Robert A BeardsleyGalera Therapeutics, Malvern, Pennsylvania.
Jeffery KeeneGalera Therapeutics, Malvern, Pennsylvania.
Michael D HenryDepartment of Microbiology, University of Iowa, Iowa City, Iowa.
Frederick E DomannDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
Douglas R SpitzDepartment of Radiation Oncology, University of Iowa, Iowa City, Iowa.
James J MezhirDepartment of Surgery, University of Iowa, Iowa City, Iowa. Department of Radiation Oncology, University of Iowa, Iowa City, Iowa. james-mezhir@uiowa.edu.
National Cancer Institute · USUniversity of Iowa · USUniversity of Southern California · US

Funding

Viral VectorP30CA086862 · NCI · UNIVERSITY OF IOWA · PI Douglas Robert Spitz · 2000 to 2026
$70.0M
University of Hawaii Cancer Center CCSGP30CA071789 · NCI · UNIVERSITY OF HAWAII AT MANOA · PI Xin Chen · 1996 to 2026
$56.2M
Pulmonary Toxicology Facility CoreP30ES005605 · NIEHS · UNIVERSITY OF IOWA · PI Brandi Janssen · 1990 to 2026
$40.5M
TRAINING PROGRAM IN FREE RADICAL AND RADIATION BIOLOGYT32CA078586 · NCI · UNIVERSITY OF IOWA · PI SPITZ, DOUGLAS ROBERT · 1999 to 2024
$5.7M
University of Iowa Surgical Oncology Training GrantT32CA148062 · NCI · UNIVERSITY OF IOWA · PI WEIGEL, RONALD J · 2010 to 2020
$3.8M
Enhancing Metabolic Oxidative Stress and Therapy Responses in Cancer Stem CellsR01CA182804 · NCI · UNIVERSITY OF IOWA · PI SPITZ, DOUGLAS ROBERT · 2014 to 2018
$1.7M
Role of Dystroglycan in Prostate Cancer ProgressionR01CA130916 · NCI · UNIVERSITY OF IOWA · PI HENRY, MICHAEL D · 2008 to 2012
$1.6M
The chemical biology of pharmacological ascorbate in cancer treatmentR01CA169046 · NCI · UNIVERSITY OF IOWA · PI BUETTNER, GARRY R · 2013 to 2017
$1.6M
The Use of 2-Deoxyglucose in Head and Neck Cancer TherapyR01CA133114 · NCI · UNIVERSITY OF IOWA · PI SPITZ, DOUGLAS ROBERT · 2009 to 2013
$1.5M
Molecular Species Responsible for Tumor Supressive Effect of MnSODR01CA115438 · NCI · UNIVERSITY OF IOWA · PI DOMANN, FREDERICK E · 2007 to 2011
$1.2M
Using Ketogenic Diets to Enhance Radio-Chemo-Therapy Response: A Phase I TrialR21CA161182 · NCI · UNIVERSITY OF IOWA · PI BERG, DANIEL J, BUATTI, JOHN M · 2011 to 2012
$340k
Redox Regulation of T-lymphocytes in Sympathoexcitation-associated HypertensionK99HL123471 · NHLBI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI CASE, ADAM J · 2015 to 2015
$108k
NCI NIH HHS N01 PC035137NCI NIH HHS N01 PC035139NCI NIH HHS N01 PC035143NCI NIH HHS N01-PC-35137NCI NIH HHS N01-PC-35139NCI NIH HHS N01-PC-35143NCI NIH HHS P30 CA071789NCI NIH HHS P30 CA086862NCI NIH HHS R01 CA115438NCI NIH HHS R01 CA130916NCI NIH HHS R01 CA133114NCI NIH HHS R01CA133114NCI NIH HHS R01 CA169046NCI NIH HHS R01 CA182804NCI NIH HHS R21 CA161182NCI NIH HHS R21CA161182NCI NIH HHS T32 CA078586NCI NIH HHS T32 CA148062NCI NIH HHS T32CA148062NHLBI NIH HHS F32 HL122021NHLBI NIH HHS K99 HL123471NIEHS NIH HHS P30 ES005605
6 · The paper itself

Abstract

purposePancreatic ductal adenocarcinoma (PDA) cells are known to produce excessive amounts of reactive oxygen species (ROS), particularly superoxide, which may contribute to the aggressive and refractory nature of this disease. Extracellular superoxide dismutase (EcSOD) is an antioxidant enzyme that catalyzes the dismutation of superoxide in the extracellular environment. This study tests the hypothesis that EcSOD modulates PDA growth and invasion by modifying the redox balance in PDA. EXPERIMENTAL

designWe evaluated the prognostic significance of EcSOD in a human tissue microarray (TMA) of patients with PDA. EcSOD overexpression was performed in PDA cell lines and animal models of disease. The impact of EcSOD on PDA cell lines was evaluated with Matrigel invasion in combination with a superoxide-specific SOD mimic and a nitric oxide synthase (NOS) inhibitor to determine the mechanism of action of EcSOD in PDA.

resultsLoss of EcSOD expression is a common event in PDA, which correlated with worse disease biology. Overexpression of EcSOD in PDA cell lines resulted in decreased invasiveness that appeared to be related to reactions of superoxide with nitric oxide. Pancreatic cancer xenografts overexpressing EcSOD also demonstrated slower growth and peritoneal metastasis. Overexpression of EcSOD or treatment with a superoxide-specific SOD mimic caused significant decreases in PDA cell invasive capacity.

conclusionsThese results support the hypothesis that loss of EcSOD leads to increased reactions of superoxide with nitric oxide, which contributes to the invasive phenotype. These results allow for the speculation that superoxide dismutase mimetics might inhibit PDA progression in human clinical disease.

Indexed as

AnimalsBlotting, WesternCarcinoma, Pancreatic DuctalHeterograftsHumansImmunohistochemistryMiceNeoplasm InvasivenessPancreatic NeoplasmsPhenotypeReactive Oxygen SpeciesReal-Time Polymerase Chain ReactionSEER ProgramSuperoxide DismutaseTissue Array AnalysisReactive Oxygen SpeciesSOD3 protein, humanSuperoxide Dismutase

Identifiers

PMID25634994
PMCPMC4383686
OpenAlexW2101566082

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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.