Evidence map›Paper›PMID 19776017›Full record

ArticleThe Journal of biological chemistry2009

Interleukin-25 expressed by brain capillary endothelial cells maintains blood-brain barrier function in a protein kinase Cepsilon-dependent manner.

Yoshifumi Sonobe, Hideyuki Takeuchi, Kunio Kataoka, Hua Li, Shijie Jin, Maya Mimuro, Yoshio Hashizume, Yasuteru Sano, Takashi Kanda, Tetsuya Mizuno and 1 more

Erratum issuedOpen access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 49 papers.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed
4.7field-weighted citation impact, top 6% 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

49 citing papers in PubMed, 98 citations in OpenAlex.

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  6. Type 2 immunity in the brain and brain borders.Cellular & molecular immunology · 2023
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 1 country.

Yoshifumi SonobeDepartment of Neuroimmunology, Research Institute of Environmental Medicine, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, USA. sonobe@riem.nagoya-u.ac.jp
Hideyuki Takeuchi
Kunio Kataoka
Hua Li
Shijie Jin
Maya Mimuro
Yoshio Hashizume
Yasuteru Sano
Takashi Kanda
Tetsuya Mizuno
Akio Suzumura
Nagoya University · JPAichi Medical University · JPYamaguchi University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Interleukin (IL)-25, a member of the IL-17 family of cytokines, is expressed in the brains of normal mice. However, the cellular source of IL-25 and its function in the brain remain to be elucidated. Here, we show that IL-25 plays an important role in preventing infiltration of the inflammatory cells into the central nervous system. Brain capillary endothelial cells (BCECs) express IL-25. However, it is down-regulated by inflammatory cytokines, including tumor necrosis factor (TNF)-alpha, IL-17, interferon-gamma, IL-1beta, and IL-6 in vitro, and is also reduced in active multiple sclerosis (MS) lesions and in the inflamed spinal cord of experimental autoimmune encephalomyelitis, an animal model of MS. Furthermore, IL-25 restores the reduced expression of tight junction proteins, occludin, junction adhesion molecule, and claudin-5, induced by TNF-alpha in BCECs and consequently repairs TNF-alpha-induced blood-brain barrier (BBB) permeability. IL-25 induces protein kinase Cepsilon (PKCepsilon) phosphorylation, and up-regulation of claudin-5 is suppressed by PKCepsilon inhibitor peptide in the IL-25-stimulated BCECs. These results suggest that IL-25 is produced by BCECs and protects against inflammatory cytokine-induced excessive BBB collapse through a PKCepsilon-dependent pathway. These novel functions of IL-25 in maintaining BBB integrity may help us understand the pathophysiology of inflammatory brain diseases such as MS.

Indexed as

AnimalsAnimals, NewbornBlood-Brain BarrierBlotting, WesternBrainCD4-Positive T-LymphocytesCell Membrane PermeabilityEndothelial CellsImmunoenzyme TechniquesInflammationInterleukin-17Interleukin-1betaInterleukin-6Membrane ProteinsMiceMice, Inbred C57BLInterleukin-17Interleukin-1betaInterleukin-6Membrane ProteinsOccludinOcln protein, mouseProtein Kinase C-epsilonRNA, MessengerTumor Necrosis Factor-alpha

Identifiers

PMID19776017
PMCPMC2797254
OpenAlexW1982011202

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.