Evidence map›Paper›PMID 28961379›Full record

ArticleCNS neuroscience & therapeutics2017

Claudin-5 regulates blood-brain barrier permeability by modifying brain microvascular endothelial cell proliferation, migration, and adhesion to prevent lung cancer metastasis.

Shun-Chang Ma, Qi Li, Jia-Yi Peng, Jian-Long Zhouwen, Jin-Fu Diao, Jian-Xing Niu, Xi Wang, Xiu-Dong Guan, Wang Jia, Wen-Guo Jiang

Abstract read
In one paragraph

Article in CNS neuroscience & therapeutics, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 73 papers.

0numbers the graph read from it
0cells of the map it votes in
73citing papers in PubMed
4.2field-weighted citation impact, top 5% 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

73 citing papers in PubMed, 125 citations in OpenAlex.

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  10. The endothelium at the interface between tissues andClinical microbiology reviews · 2025
    Review
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  12. Review
  13. Review
  14. Article
  15. Article
  16. MicroRNAs in Lung Cancer Brain Metastasis.International journal of molecular sciences · 2024
    Review
  17. Review
  18. Article
  19. Review
  20. Article

13 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

10 authors at 2 institutions in 2 countries.

Shun-Chang MaDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.ORCID http://orcid.org/0000-0001-8694-1319
Qi LiCore Laboratory for Clinical Medical Research, Beijing Tian Tan Hospital, Capital Medical University, Beijing, China.
Jia-Yi PengDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Jian-Long ZhouwenDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Jin-Fu DiaoDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Jian-Xing NiuDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Xi WangDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Xiu-Dong GuanDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Wang JiaDepartment of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
Wen-Guo JiangMetastasis and Angiogenesis Research Group, University Department of Surgery, Cardiff University School of Medicine, Cardiff, UK.
Capital Medical University · CNCardiff University · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo investigate the roles of Claudin-5 (CLDN5) in regulating the permeability of the blood-brain barrier (BBB) during lung cancer brain metastasis.

resultsBy silencing and overexpressing the CLDN5 gene in human brain vascular endothelial (hCMEC/D3) cells, we demonstrated the attenuation of cell migration ability and CLDN5's significant positive role in cell proliferation in CLDN5-overexpressing hCMEC/D3 cells and observed the opposite result in the CLDN5 knockdown group. The reinforced CLDN5 expression reduced the paracellular permeability of hCMEC/D3 cells and decreased the invasion of lung adenocarcinoma A549 cells. Overall, 1685 genes were found to be differentially expressed between the CLDN5-overexpressing cells and the control cells using the Affymetrix Human Transcriptome Array 2.0 (HTA 2.0), and the function of these genes was determined by Gene Ontology and pathway analyses. The possible biological functions of the 1685 genes include cell proliferation, adhesion molecules, and the Jak-STAT, PI3K-Akt, Wnt, and Notch signaling pathways. The identified sets of mRNAs that were specific to CLDN5-overexpressing hCMEC/D3 cells were verified by a qRT-PCR experiment.

conclusionCLDN5 regulates the permeability of BBB by regulating the proliferation, migration, and permeability of hCMEC/D3 cells, especially through the cell adhesion molecule signaling pathway, to enhance the function of the tight junctions, which was involved in reducing the formation of lung cancer brain metastasis.

Indexed as

Blood-Brain BarrierCadherinsCell Adhesion MoleculesCell Line, TumorCell MovementCell ProliferationClaudin-5Endothelium, VascularGene Expression Regulation, NeoplasticHumansPermeabilityRNA, MessengerRNA, Small InterferingTransfectionCadherinsCell Adhesion MoleculesClaudin-5RNA, MessengerRNA, Small Interferingblood-brain barrierbrain metastasiscell adhesion molecules signalingclaudin-5permeability

Identifiers

PMID28961379
PMCPMC6492739
OpenAlexW2758828952

What OpenQuestion holds

Textmetadata
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.