Evidence map›Paper›PMID 22833345›Full record

ArticleClinical & experimental metastasis2013

Attenuation of reactive oxygen species by antioxidants suppresses hypoxia-induced epithelial-mesenchymal transition and metastasis of pancreatic cancer cells.

Yoshihide Shimojo, Miho Akimoto, Tsunehiro Hisanaga, Tsuneo Tanaka, Yoshitsugu Tajima, Yoshio Honma, Keizo Takenaga

Abstract read
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In one paragraph

Article in Clinical & experimental metastasis, 2013. 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
3.4field-weighted citation impact, top 8% 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, 73 citations in OpenAlex.

  1. Article
  2. Revisiting reactive oxygen species production in hypoxia.Pflugers Archiv : European journal of physiology · 2024
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  12. [A Review of High-altitude Hypoxia Adaptation and Hypoxic Solid Tumor].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2021
    Review
  13. Review
  14. Dihydroartemisinin Prevents Distant Metastasis of Laryngeal Carcinoma by Inactivating STAT3 in Cancer Stem Cells.Medical science monitor : international medical journal of experimental and clinical research · 2020
    Article
  15. Review
  16. Article
  17. Article
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  19. Mitochondrial Involvement in Migration, Invasion and Metastasis.Frontiers in cell and developmental biology · 2019
    Review
  20. How do cancer cells replenish their fuel supply?Cancer reports (Hoboken, N.J.) · 2018
    Review
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.

Yoshihide ShimojoDepartment of Digestive and General Surgery, Faculty of Medicine, Shimane University, 89-1 Enya, Izumo, Shimane, Japan.
Miho Akimoto
Tsunehiro Hisanaga
Tsuneo Tanaka
Yoshitsugu Tajima
Yoshio Honma
Keizo Takenaga
Shimane University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hypoxia has been shown to promote metastasis of cancer cells through induction of epithelial-mesenchymal transition (EMT). It is also known to cause generation of reactive oxygen species (ROS). We investigated here the role of ROS in hypoxia-induced EMT and whether attenuation of ROS by antioxidants suppresses hypoxia-induced EMT and metastasis of human pancreatic cancer cells in a xenograft nude mouse model. PANC-1 and MiaPaCa-2 cells exposed to hypoxia (1 % O(2)) showed increased ROS generation and characteristic changes of EMT such as morphological changes, enhanced invasiveness, and upregulation of EMT regulators, SLUG, SNAI1 and TWIST. The antioxidants N-acetylcysteine (NAC) and ebselen significantly suppressed EMT and the expression of EMT regulators during hypoxia. NAC abrogated activation of HIF-1α and NF-κB, both of which were found to play an active role in hypoxia-induced EMT. Administration of NAC to nude mice with orthotopic tumors suppressed the expression of EMT regulators in hypoxic areas and significantly inhibited hepatic metastasis. Together, the present findings demonstrate that attenuation of ROS by antioxidants suppresses hypoxia-induced EMT and metastatic phenotype, suggesting that antioxidants may be of therapeutic value in treating pancreatic cancers.

Indexed as

AcetylcysteineAnimalsAntioxidantsApoptosisBlotting, WesternCell AdhesionCell MovementCell ProliferationEpithelial-Mesenchymal TransitionFemaleFluorescent Antibody TechniqueHumansHypoxiaHypoxia-Inducible Factor 1, alpha SubunitLiver NeoplasmsMiceAcetylcysteineAntioxidantsHypoxia-Inducible Factor 1, alpha SubunitNF-kappa BReactive Oxygen SpeciesRNA, MessengerRNA, Small InterferingSNAI1 protein, humanSnai1 protein, mouseSnai2 protein, mouseSnail Family Transcription FactorsTranscription FactorsTwist-Related Protein 1

Identifiers

PMID22833345
OpenAlexW1968455142

What OpenQuestion holds

Textmetadata
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.