Evidence map›Paper›PMID 31883012›Full record

ArticleNeuro-oncology2020

Connexin43 peptide, TAT-Cx43266-283, selectively targets glioma cells, impairs malignant growth, and enhances survival in mouse models in vivo.

Myriam Jaraíz-Rodríguez, Rocío Talaverón, Laura García-Vicente, Sara G Pelaz, Marta Domínguez-Prieto, Andrea Álvarez-Vázquez, Raquel Flores-Hernández, Wun Chey Sin, John Bechberger, José M Medina and 2 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in Neuro-oncology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
2.2field-weighted citation impact, top 11% 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

32 citing papers in PubMed, 52 citations in OpenAlex.

  1. Review
  2. Article
  3. Beyond the gap: moonlighting functions of connexins in cancer.Cell communication and signaling : CCS · 2026
    Review
  4. Article
  5. Connexin-Pannexin duality in glioblastoma.Cell and tissue research · 2026
    Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Breaking Down Glioma-Microenvironment Crosstalk.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2025
    Review
  11. Article
  12. Review
  13. Article
  14. Article
  15. Small Molecule Tyrosine Kinase Inhibitors (TKIs) for Glioblastoma Treatment.International journal of molecular sciences · 2024
    Review
  16. Article
  17. Article
  18. Review
  19. Review
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 2 institutions in 2 countries.

Myriam Jaraíz-RodríguezDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Rocío TalaverónDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Laura García-VicenteDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Sara G PelazDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Marta Domínguez-PrietoDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Andrea Álvarez-VázquezDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Raquel Flores-HernándezDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Wun Chey SinDepartment of Cellular and Physiological Sciences, The Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.
John BechbergerDepartment of Cellular and Physiological Sciences, The Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.
José M MedinaDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Christian C NausDepartment of Cellular and Physiological Sciences, The Life Sciences Institute, University of British Columbia, Vancouver, British Columbia, Canada.
Arantxa TaberneroDepartment of Biochemistry and Molecular Biology, Institute of Neurosciences Castilla y León (INCYL), University of Salamanca, Salamanca, Spain.
Universidad de Salamanca · ESUniversity of British Columbia · CA

Funding

CIHR
6 · The paper itself

Abstract

backgroundMalignant gliomas are the most frequent primary brain tumors and remain among the most incurable cancers. Although the role of the gap junction protein, connexin43 (Cx43), has been deeply investigated in malignant gliomas, no compounds have been reported with the ability to recapitulate the tumor suppressor properties of this protein in in vivo glioma models.

methodsTAT-Cx43266-283 a cell-penetrating peptide which mimics the effect of Cx43 on c-Src inhibition, was studied in orthotopic immunocompetent and immunosuppressed models of glioma. The effects of this peptide in brain cells were also analyzed.

resultsWhile glioma stem cell malignant features were strongly affected by TAT-Cx43266-283, these properties were not significantly modified in neurons and astrocytes. Intraperitoneally administered TAT-Cx43266-283 decreased the invasion of intracranial tumors generated by GL261 mouse glioma cells in immunocompetent mice. When human glioma stem cells were intracranially injected with TAT-Cx43266-283 into immunodeficient mice, there was reduced expression of the stemness markers nestin and Sox2 in human glioma cells at 7 days post-implantation. Consistent with the role of Sox2 as a transcription factor required for tumorigenicity, TAT-Cx43266-283 reduced the number and stemness of human glioma cells at 30 days post-implantation. Furthermore, TAT-Cx43266-283 enhanced the survival of immunocompetent mice bearing gliomas derived from murine glioma stem cells.

conclusionTAT-Cx43266-283 reduces the growth, invasion, and progression of malignant gliomas and enhances the survival of glioma-bearing mice without exerting toxicity in endogenous brain cells, which suggests that this peptide could be considered as a new clinical therapy for high-grade gliomas.

Indexed as

Brain NeoplasmsGliomaAnimalsCell Line, TumorConnexin 43Disease Models, AnimalMicePeptidesConnexin 43Peptidescell-penetrating peptidesconnexingliomaSrc

Identifiers

PMID31883012
PMCPMC7158688
OpenAlexW2997049714

What OpenQuestion holds

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LicenceCC BY
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.