Evidence map›Paper›PMID 38900237›Full record

ArticleJournal of neuro-oncology2024

Effects of tumor treating fields (TTFields) on human mesenchymal stromal cells.

Maren Strack, Jan Kückelhaus, Martin Diebold, Patrick Wuchter, Peter E Huber, Oliver Schnell, Roman Sankowski, Marco Prinz, Anca-Ligia Grosu, Dieter Henrik Heiland and 2 more

Abstract read
In one paragraph

Article in Journal of neuro-oncology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing 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

4 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. 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

12 authors.

Maren StrackDepartment of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK), partner site DKTK-Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Jan KückelhausDepartment of Neurosurgery, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Martin DieboldInstitute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Patrick WuchterInstitute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, German Red Cross Blood Service Baden- Württemberg- Hessen, Heidelberg University, Mannheim, Germany.
Peter E HuberDepartment of Molecular Radiation Oncology, German Cancer Research Center (dkfz), Heidelberg, Germany.
Oliver SchnellDepartment of Neurosurgery, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Roman SankowskiInstitute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Marco PrinzInstitute of Neuropathology, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Anca-Ligia GrosuDepartment of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK), partner site DKTK-Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Dieter Henrik HeilandDepartment of Neurosurgery, Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
Nils H NicolayDepartment of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK), partner site DKTK-Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany.
Alexander RühleDepartment of Radiation Oncology, Medical Center, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK), partner site DKTK-Freiburg, Robert-Koch-Str. 3, 79106, Freiburg, Germany. alexander.ruehle@uniklinik-freiburg.de.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeMesenchymal stromal cells (MSCs) within the glioblastoma microenvironment have been shown to promote tumor progression. Tumor Treating Fields (TTFields) are alternating electric fields with low intensity and intermediate frequency that exhibit anti-tumorigenic effects. While the effects of TTFields on glioblastoma cells have been studied previously, nothing is known about the influence of TTFields on MSCs.

methodsSingle-cell RNA sequencing and immunofluorescence staining were employed to identify glioblastoma-associated MSCs in patient samples. Proliferation and clonogenic survival of human bone marrow-derived MSCs were assessed after TTFields in vitro. MSC' characteristic surface marker expression was determined using flow cytometry, while multi-lineage differentiation potential was examined with immunohistochemistry. Apoptosis was quantified based on caspase-3 and annexin-V/7-AAD levels in flow cytometry, and senescence was assessed with ß-galactosidase staining. MSCs' migratory potential was evaluated with Boyden chamber assays.

resultsSingle-cell RNA sequencing and immunofluorescence showed the presence of glioblastoma-associated MSCs in patient samples. TTFields significantly reduced proliferation and clonogenic survival of human bone marrow-derived MSCs by up to 60% and 90%, respectively. While the characteristic surface marker expression and differentiation capacity were intact after TTFields, treatment resulted in increased apoptosis and senescence. Furthermore, TTFields significantly reduced MSCs' migratory capacity.

conclusionWe could demonstrate the presence of tumor-associated MSCs in glioblastoma patients, providing a rationale to study the impact of TTFields on MSCs. TTFields considerably increase apoptosis and senescence in MSCs, resulting in impaired survival and migration. The results provide a basis for further analyses on the role of MSCs in glioblastoma patients receiving TTFields.

Indexed as

ApoptosisBrain NeoplasmsCell DifferentiationCell ProliferationGlioblastomaMesenchymal Stem CellsCell MovementElectric Stimulation TherapyHumansTumor MicroenvironmentGliomaMesenchymal stem cellsMesenchymal stromal cellsTumor microenvironment

Identifiers

PMID38900237
PMCPMC11341748

What Socratic holds

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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 Socratic graph.