Evidence map›Paper›PMID 26542214›Full record

ArticleCancer research2016

Connexin 43 Inhibition Sensitizes Chemoresistant Glioblastoma Cells to Temozolomide.

Susan F Murphy, Robin T Varghese, Samy Lamouille, Sujuan Guo, Kevin J Pridham, Pratik Kanabur, Alyssa M Osimani, Shaan Sharma, Jane Jourdan, Cara M Rodgers and 3 more

Open access · greenAbstract read
In one paragraph

Article in Cancer research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 109 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
109citing papers in PubMed, 1 pooled it
6.5field-weighted citation impact, top 3% 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

109 citing papers in PubMed, 1 synthesis or guideline pooled it, 160 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Review
  5. Beyond the gap: moonlighting functions of connexins in cancer.Cell communication and signaling : CCS · 2026
    Review
  6. Review
  7. Article
  8. Review
  9. Review
  10. Connexin-Pannexin duality in glioblastoma.Cell and tissue research · 2026
    Review
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Innovative Therapeutic Strategies Targeting the Network Architecture of Glioblastoma.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025
    Review
  20. Article

49 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

13 authors at 4 institutions in 1 country.

Susan F MurphyVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Robin T VargheseVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Samy LamouilleVirginia Tech Carilion Research Institute, Roanoke, Virginia. FirstString Research Inc., Mount Pleasant, South Carolina.
Sujuan GuoVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Kevin J PridhamVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Pratik KanaburVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Alyssa M OsimaniVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Shaan SharmaVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Jane JourdanVirginia Tech Carilion Research Institute, Roanoke, Virginia.
Cara M RodgersDepartment of Neurosurgery, Carilion Clinic, Roanoke, Virginia.
Gary R SimondsDepartment of Neurosurgery, Carilion Clinic, Roanoke, Virginia.
Robert G GourdieVirginia Tech Carilion Research Institute, Roanoke, Virginia. Faculty of Health Science, Virginia Tech, Blacksburg, Virginia. Virginia Tech-Wake Forest University School of Biomedical Engineering and Sciences, Blacksburg, Virginia. Department of Emergency Medicine, Virginia Tech Carilion School of Medicine, Roanoke, Virginia. zhisheng@vtc.vt.edu gourdier@vtc.vt.edu.
Zhi ShengVirginia Tech Carilion Research Institute, Roanoke, Virginia. Faculty of Health Science, Virginia Tech, Blacksburg, Virginia. Department of Biological Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia. Department of Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, Virginia. zhisheng@vtc.vt.edu gourdier@vtc.vt.edu.
Carilion Clinic · USFirstString Research (United States) · USVirginia–Maryland College of Veterinary Medicine · USVirginia Tech - Wake Forest University School of Biomedical Engineering & Sciences · US

Funding

PATTERNING OF GAP JUNCTION COUPLING IN DEVELOPING HEARTR01HL056728 · NHLBI · VIRGINIA POLYTECHNIC INST AND ST UNIV · PI GOURDIE, ROBERT G · 1997 to 2021
$5.6M
NHLBI NIH HHS R01 HL056728NHLBI NIH HHS R01HL56728
6 · The paper itself

Abstract

Resistance of glioblastoma (GBM) to the front-line chemotherapeutic agent temozolomide (TMZ) continues to challenge GBM treatment efforts. The repair of TMZ-induced DNA damage by O-6-methylguanine-DNA methyltransferase (MGMT) confers one mechanism of TMZ resistance. Paradoxically, MGMT-deficient GBM patients survive longer despite still developing resistance to TMZ. Recent studies indicate that the gap junction protein connexin 43 (Cx43) renders GBM cells resistant to TMZ through its carboxyl terminus (CT). In this study, we report insights into how Cx43 promotes TMZ resistance. Cx43 levels were inversely correlated with TMZ sensitivity of GBM cells, including GBM stem cells. Moreover, Cx43 levels inversely correlated with patient survival, including as observed in MGMT-deficient GBM patients. Addition of the C-terminal peptide mimetic αCT1, a selective inhibitor of Cx43 channels, sensitized human MGMT-deficient and TMZ-resistant GBM cells to TMZ treatment. Moreover, combining αCT1 with TMZ-blocked AKT/mTOR signaling, induced autophagy and apoptosis in TMZ-resistant GBM cells. Our findings suggest that Cx43 may offer a biomarker to predict the survival of patients with MGMT-independent TMZ resistance and that combining a Cx43 inhibitor with TMZ could enhance therapeutic responses in GBM, and perhaps other TMZ-resistant cancers.

Indexed as

AnimalsAntineoplastic Combined Chemotherapy ProtocolsBiomimetic MaterialsBrain NeoplasmsCell Line, TumorConnexin 43DacarbazineDrug SynergismGlioblastomaHumansMiceMice, Inbred BALB CMice, NudePeptidesSignal TransductionTemozolomideConnexin 43DacarbazinePeptidesTemozolomide

Identifiers

PMID26542214
PMCPMC5113032
OpenAlexW2162383874

What OpenQuestion holds

Textmetadata
LicenceTDM
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.