Evidence map›Paper›PMID 15715906›Full record

ArticleBMC cell biology2005

Contribution of gap junctional communication between tumor cells and astroglia to the invasion of the brain parenchyma by human glioblastomas.

Roxane Oliveira, Christo Christov, Jean Sébastien Guillamo, Sophie de Boüard, Stéphane Palfi, Laurent Venance, Marcienne Tardy, Marc Peschanski

Open access · goldAbstract read
In one paragraph

Article in BMC cell biology, 2005. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed, 1 pooled it
2.6field-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

70 citing papers in PubMed, 1 synthesis or guideline pooled it, 151 citations in OpenAlex.

  1. Pooled it
  2. Connexin-Pannexin duality in glioblastoma.Cell and tissue research · 2026
    Review
  3. Breaking Down Glioma-Microenvironment Crosstalk.The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry · 2025
    Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Advances in Research of Adult Gliomas.International journal of molecular sciences · 2021
    Review
  13. Review
  14. Article
  15. Article
  16. Epigenetic dynamics in cancer stem cell dormancy.Cancer metastasis reviews · 2020
    Review
  17. Cx43 in Neural Progenitors Promotes Glioma Invasion in a 3D Culture System.International journal of molecular sciences · 2020
    Article
  18. Article
  19. Review
  20. Review

10 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Roxane OliveiraINSERM/UPVM 421, Plasticité cellulaire et thérapeutique, Faculté de Médecine, 94010 Créteil cedex France. oliveira@im3.inserm.fr
Christo Christov
Jean Sébastien Guillamo
Sophie de Boüard
Stéphane Palfi
Laurent Venance
Marcienne Tardy
Marc Peschanski
Inserm · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundGliomas are "intraparenchymally metastatic" tumors, invading the brain in a non-destructive way that suggests cooperation between glioma cells and their environment. Recent studies using an engineered rodent C6 tumor cell line have pointed to mechanisms of invasion that involved gap junctional communication (GJC), with connexin 43 as a substrate. We explored whether this concept may have clinical relevance by analyzing the participation of GJC in human glioblastoma invasion.

resultsThree complementary in vitro assays were used: (i) seeding on collagen IV, to analyze homocellular interactions between tumor cells (ii) co-cultures with astrocytes, to study glioblastoma/astrocytes relationships and (iii) implantation into organotypic brain slice cultures, that mimic the three-dimensional parenchymal environment. Carbenoxolone, a potent blocker of GJC, inhibited cell migration in the two latter models. It paradoxically increased it in the first one. These results showed that homocellular interaction between tumor cells supports intercellular adhesion, whereas heterocellular glioblastoma/astrocytes interactions through functional GJC conversely support tumor cell migration. As demonstrated for the rodent cell line, connexin 43 may be responsible for this heterocellular functional coupling. Its levels of expression, high in astrocytes, correlated positively with invasiveness in biopsied tumors.

conclusionsour results underscore the potential clinical relevance of the concept put forward by other authors based on experiments with a rodent cell line, that glioblastoma cells use astrocytes as a substrate for their migration by subverting communication through connexin 43-dependent gap junctions.

Indexed as

AstrocytesBrain NeoplasmsCell AdhesionCell CommunicationCell MovementCoculture TechniquesConnexin 43Gap JunctionsGlioblastomaHumansNeoplasm InvasivenessTumor Cells, CulturedConnexin 43

Identifiers

PMID15715906
PMCPMC553963
OpenAlexW1660686599

What OpenQuestion holds

Textmetadata
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.