Evidence map›Paper›PMID 36291557›Full record

ArticleBiomolecules2022

Tumor Treating Fields (TTFields) Reversibly Permeabilize the Blood-Brain Barrier In Vitro and In Vivo.

Ellaine Salvador, Almuth F Kessler, Dominik Domröse, Julia Hörmann, Clara Schaeffer, Aiste Giniunaite, Malgorzata Burek, Catherine Tempel-Brami, Tali Voloshin, Alexandra Volodin and 6 more

Open access · goldAbstract read
In one paragraph

Article in Biomolecules, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
3.3field-weighted citation impact, top 7% 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

33 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Post-recurrence management of malignant glial brain tumors: therapeutic strategies, evidence and limitations, palliative care, terminal sedation, and end-of-life considerations.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2026
    Review
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  7. Review
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  11. Tumor-treating fields in cancer therapy: advances of cellular and molecular mechanisms.Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico · 2025
    Review
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  19. Review
  20. Glioblastoma Therapy: Past, Present and Future.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

16 authors at 1 institution in 1 country.

Ellaine SalvadorDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.ORCID 0000-0003-2127-4548
Almuth F KesslerDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Dominik DomröseDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Julia HörmannDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Clara SchaefferDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Aiste GiniunaiteDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Malgorzata BurekDepartment of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University of Würzburg, D-97080 Würzburg, Germany.ORCID 0000-0001-6148-2195
Catherine Tempel-BramiNovocure Ltd., Haifa 3190500, Israel.
Tali VoloshinNovocure Ltd., Haifa 3190500, Israel.
Alexandra VolodinNovocure Ltd., Haifa 3190500, Israel.
Adel ZeidanNovocure Ltd., Haifa 3190500, Israel.
Moshe GiladiNovocure Ltd., Haifa 3190500, Israel.ORCID 0000-0003-1489-4175
Ralf-Ingo ErnestusDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Mario LöhrDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.
Carola Y FörsterDepartment of Anaesthesiology, Intensive Care, Emergency and Pain Medicine, University of Würzburg, D-97080 Würzburg, Germany.ORCID 0000-0002-3878-247X
Carsten HagemannDepartment of Neurosurgery, Section Experimental Neurosurgery, University of Würzburg, D-97080 Würzburg, Germany.ORCID 0000-0001-9759-8149
University of Würzburg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the availability of numerous therapeutic substances that could potentially target CNS disorders, an inability of these agents to cross the restrictive blood-brain barrier (BBB) limits their clinical utility. Novel strategies to overcome the BBB are therefore needed to improve drug delivery. We report, for the first time, how Tumor Treating Fields (TTFields), approved for glioblastoma (GBM), affect the BBB's integrity and permeability. Here, we treated murine microvascular cerebellar endothelial cells (cerebEND) with 100-300 kHz TTFields for up to 72 h and analyzed the expression of barrier proteins by immunofluorescence staining and Western blot. In vivo, compounds normally unable to cross the BBB were traced in healthy rat brain following TTFields administration at 100 kHz. The effects were analyzed via MRI and immunohistochemical staining of tight-junction proteins. Furthermore, GBM tumor-bearing rats were treated with paclitaxel (PTX), a chemotherapeutic normally restricted by the BBB combined with TTFields at 100 kHz. The tumor volume was reduced with TTFields plus PTX, relative to either treatment alone. In vitro, we demonstrate that TTFields transiently disrupted BBB function at 100 kHz through a Rho kinase-mediated tight junction claudin-5 phosphorylation pathway. Altogether, if translated into clinical use, TTFields could represent a novel CNS drug delivery strategy.

Indexed as

Blood-Brain BarrierGlioblastomaAnimalsClaudin-5Endothelial CellsMicePaclitaxelRatsrho-Associated KinasesClaudin-5Paclitaxelrho-Associated Kinasesblood–brain barrierCNS disordersTTFields

Identifiers

PMID36291557
PMCPMC9599321
OpenAlexW4296849018

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.