Evidence map›Paper›PMID 32321535›Full record

ArticleFluids and barriers of the CNS2020

Serum-derived factors of breast cancer patients with brain metastases alter permeability of a human blood-brain barrier model.

Carolin J Curtaz, Constanze Schmitt, Saskia-Laureen Herbert, Jonas Feldheim, Nicolas Schlegel, Fabien Gosselet, Carsten Hagemann, Norbert Roewer, Patrick Meybohm, Achim Wöckel and 1 more

Open access · goldAbstract read
In one paragraph

Article in Fluids and barriers of the CNS, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
3.4field-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

38 citing papers in PubMed, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
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  7. Review
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  11. Article
  12. Anti-HER2-targeted therapies: effects on humanFrontiers in drug delivery · 2025
    Article
  13. Article
  14. Cell-cell communication characteristics in breast cancer metastasis.Cell communication and signaling : CCS · 2024
    Review
  15. Article
  16. Article
  17. The origin of brain malignancies at the blood-brain barrier.Cellular and molecular life sciences : CMLS · 2023
    Review
  18. Review
  19. Review
  20. 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

11 authors at 2 institutions in 2 countries.

Carolin J CurtazDepartment of Gynecology and Obstetrics, University of Würzburg, Würzburg, Germany.
Constanze SchmittDepartment of Anaesthesia and Critical Care, University of Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany.
Saskia-Laureen HerbertDepartment of Gynecology and Obstetrics, University of Würzburg, Würzburg, Germany.
Jonas FeldheimDepartment of Neurosurgery, Tumour Biology Laboratory, University of Würzburg, Würzburg, Germany.
Nicolas SchlegelDepartment of Surgery I, University of Würzburg, Würzburg, Germany.
Fabien GosseletBlood-Brain Barrier Laboratory, Université d'Artois, UR, 2465, Lens, France.
Carsten HagemannDepartment of Neurosurgery, Tumour Biology Laboratory, University of Würzburg, Würzburg, Germany.
Norbert RoewerDepartment of Anaesthesia and Critical Care, University of Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany.
Patrick MeybohmDepartment of Anaesthesia and Critical Care, University of Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany.
Achim WöckelDepartment of Gynecology and Obstetrics, University of Würzburg, Würzburg, Germany.
Malgorzata BurekDepartment of Anaesthesia and Critical Care, University of Würzburg, Oberdürrbacher Straße 6, 97080, Würzburg, Germany. Burek_M@ukw.de.
University of Würzburg · DEUniversité d'Artois · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe most threatening metastases in breast cancer are brain metastases, which correlate with a very poor overall survival, but also a limited quality of life. A key event for the metastatic progression of breast cancer into the brain is the migration of cancer cells across the blood-brain barrier (BBB).

methodsWe adapted and validated the CD34

resultsThe BLECs cultured together with brain pericytes in transwells developed a tight monolayer with a correct localization of claudin-5 at the tight junctions (TJ). Several BBB marker proteins such as the TJ proteins claudin-5 and occludin, the glucose transporter GLUT-1 or the efflux pumps PG-P and BCRP were upregulated in these cultures. This was accompanied by a reduced paracellular permeability for fluorescein (400 Da). We then used this model for the treatment with the patient sera. Only the sera of breast cancer patients with cerebral metastases had significantly increased levels of the cytokines fractalkine (CX3CL1) and BCA-1 (CXCL13). The increased levels of fractalkine were associated with the estrogen/progesterone receptor status of the tumour. The treatment of BLECs with these sera selectively increased the expression of CXCL13 and TJ protein occludin. In addition, the permeability of fluorescein was increased after serum treatment.

conclusionWe demonstrate that the CD34

Indexed as

Models, BiologicalAgedBlood-Brain BarrierBrain NeoplasmsBreast NeoplasmsCells, CulturedChemokine CX3CL1Chemokine CXCL13FemaleHumansMiddle AgedNeoplasm MetastasisChemokine CX3CL1Chemokine CXCL13CX3CL1 protein, humanCXCL13 protein, humanBlood–brain barrierCX3CL1CXCL13In vitro modelsMetastatic breast cancer

Identifiers

PMID32321535
PMCPMC7178982
OpenAlexW3020093841

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.