Evidence map›Paper›PMID 30232269›Full record

ArticleJCI insight2018

Leukotriene B4 promotes neovascularization and macrophage recruitment in murine wet-type AMD models.

Fumiyuki Sasaki, Tomoaki Koga, Mai Ohba, Kazuko Saeki, Toshiaki Okuno, Keijiro Ishikawa, Takahito Nakama, Shintaro Nakao, Shigeo Yoshida, Tatsuro Ishibashi and 6 more

Open access · goldAbstract read
In one paragraph

Article in JCI insight, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

23 citing papers in PubMed, 45 citations in OpenAlex.

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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

16 authors at 5 institutions in 4 countries.

Fumiyuki SasakiDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Tomoaki KogaDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Mai OhbaDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Kazuko SaekiDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Toshiaki OkunoDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Keijiro IshikawaDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Takahito NakamaDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Shintaro NakaoDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Shigeo YoshidaDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Tatsuro IshibashiDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Hamid AhmadiehOphthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Mozhgan Rezaei KanaviOcular Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Ali Hafezi-MoghadamMolecular Biomarkers Nano-Imaging Laboratory, Brigham & Women's Hospital, and Department of Radiology, Harvard Medical School, Boston, Massachusetts, USA.
Josef M PenningerInstitute of Molecular Biotechnology of the Austrian Academy of Sciences (IMBA), Vienna, Austria.
Koh-Hei SonodaDepartment of Ophthalmology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.
Takehiko YokomizoDepartment of Biochemistry, Juntendo University School of Medicine, Tokyo, Japan.
Juntendo University · JPKyushu University · JPShahid Beheshti University of Medical Sciences · IRBrigham and Women's Hospital · USInstitute of Molecular Biotechnology · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Age-related macular degeneration (AMD), a progressive chronic disease of the central retina, is associated with aging and is a leading cause of blindness worldwide. Here, we demonstrate that leukotriene B4 (LTB4) receptor 1 (BLT1) promotes laser-induced choroidal neovascularization (CNV) in a mouse model for wet-type AMD. CNV was significantly less in BLT1-deficient (BLT1-KO) mice compared with BLT1-WT controls. Expression of several proangiogenic and profibrotic factors was lower in BLT1-KO eyes than in BLT1-WT eyes. LTB4 production in the eyes was substantially increased in the early phase after laser injury. BLT1 was highly expressed in M2 macrophages in vitro and in vivo, and ocular BLT1+ M2 macrophages were increased in the aged eyes after laser injury. Furthermore, M2 macrophages were rapidly attracted by LTB4 and subsequently produced VEGF-A- through BLT1-mediated signaling. Consequently, intravitreal injection of M2 macrophages augmented CNV formation, which was attenuated by BLT1 deficiency. Thus, laser-induced injury to the retina triggered LTB4 production and attracted M2 macrophages via BLT1, leading to development of CNV. A selective BLT1 antagonist (CP105696) and 3 LTB4 inhibitors (zileuton, MK-886, and bestatin) reduced CNV in a dose-dependent manner. CP105696 also inhibited the accumulation of BLT1+ M2 macrophages in the laser-injured eyes of aged mice. Together, these results indicate that the LTB4-BLT1 axis is a potentially novel therapeutic target for CNV of wet-type AMD.

Indexed as

AnimalsBenzopyransCarboxylic AcidsChlorobenzenesChoroidal NeovascularizationDisease Models, AnimalEyeEye InjuriesHydroxyureaIndolesLasersLeucineLeukotriene B4MacrophagesMacular DegenerationMaleBenzopyransCarboxylic AcidsChlorobenzenesCP 105696HydroxyureaIndolesLeucineLeukotriene B4Ltb4r1 protein, mouseLtb4r2 protein, mouseMK-886Receptors, Leukotriene B4ubenimexzileutonAngiogenesisEicosanoidsG-protein coupled receptorsInflammationMacrophages

Identifiers

PMID30232269
PMCPMC6237215
OpenAlexW2889981326

What OpenQuestion holds

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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.