Evidence map›Paper›PMID 32817494›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2020

The glutathione peroxidase 8 (GPX8)/IL-6/STAT3 axis is essential in maintaining an aggressive breast cancer phenotype.

Anees Khatib, Balakrishnan Solaimuthu, Michal Ben Yosef, Areej Abu Rmaileh, Mayur Tanna, Gidi Oren, Michal Schlesinger Frisch, Jonathan H Axelrod, Michal Lichtenstein, Yoav D Shaul

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
–field-weighted citation impact
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

50 citing papers in PubMed.

  1. Article
  2. GPX8Oncogene · 2026
    Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Article
  10. Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. GPX1 expression promotes stemness and aggressiveness in myxoid liposarcomas.International journal of biological sciences · 2025
    Article
  17. Article
  18. Review
  19. Article
  20. Glutathione-Dependent Pathways in Cancer Cells.International journal of molecular sciences · 2024
    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

10 authors.

Anees KhatibDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.ORCID 0000-0002-3985-5853
Balakrishnan SolaimuthuDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.ORCID 0000-0001-9920-7711
Michal Ben YosefDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.
Areej Abu RmailehDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.
Mayur TannaDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.ORCID 0000-0001-9645-1217
Gidi OrenDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.
Michal Schlesinger FrischDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.
Jonathan H AxelrodGoldyne Savad Institute of Gene Therapy, Hadassah Hebrew University Hospital, 91120 Jerusalem, Israel.
Michal LichtensteinDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel.
Yoav D ShaulDepartment of Biochemistry and Molecular Biology, The Institute for Medical Research Israel-Canada, The Hebrew University-Hadassah Medical School, 91120 Jerusalem, Israel; yoav.shaul@mail.huji.ac.il.ORCID 0000-0002-2987-7098

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

One of the emerging hallmarks of cancer illustrates the importance of metabolic reprogramming, necessary to synthesize the building blocks required to fulfill the high demands of rapidly proliferating cells. However, the proliferation-independent instructive role of metabolic enzymes in tumor plasticity is still unclear. Here, we provide evidence that glutathione peroxidase 8 (GPX8), a poorly characterized enzyme that resides in the endoplasmic reticulum, is an essential regulator of tumor aggressiveness. We found that GPX8 expression was induced by the epithelial-mesenchymal transition (EMT) program. Moreover, in breast cancer patients, GPX8 expression significantly correlated with known mesenchymal markers and poor prognosis. Strikingly, GPX8 knockout in mesenchymal-like cells (MDA-MB-231) resulted in an epithelial-like morphology, down-regulation of EMT characteristics, and loss of cancer stemness features. In addition, GPX8 knockout significantly delayed tumor initiation and decreased its growth rate in mice. We found that these GPX8 loss-dependent phenotypes were accompanied by the repression of crucial autocrine factors, in particular, interleukin-6 (IL-6). In these cells, IL-6 bound to the soluble receptor (sIL6R), stimulating the JAK/STAT3 signaling pathway by IL-6

Indexed as

AnimalsBreast NeoplasmsCell Line, TumorEpithelial-Mesenchymal TransitionFemaleHumansInterleukin-6Janus KinasesMiceMice, Inbred NODMice, SCIDPeroxidasesPhenotypeSignal TransductionSTAT3 Transcription FactorGPX8 protein, humanInterleukin-6Janus KinasesPeroxidasesSTAT3 Transcription Factorcancer metabolismepithelial–mesenchymal transitionGPX8JAK/STAT3 signaling

Identifiers

PMID32817494
PMCPMC7474634

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.