Evidence map›Paper›PMID 34982146›Full record

ArticleInvestigative ophthalmology & visual science2022

Axonal Protection by Netarsudil, a ROCK Inhibitor, Is Linked to an AMPK-Autophagy Pathway in TNF-Induced Optic Nerve Degeneration.

Yasushi Kitaoka, Kana Sase, Chihiro Tsukahara, Naoki Fujita, Ibuki Arizono, Jiro Kogo, Naoto Tokuda, Hitoshi Takagi

Open access · goldAbstract read
In one paragraph

Article in Investigative ophthalmology & visual science, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
2.5field-weighted citation impact, top 11% 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

12 citing papers in PubMed, 17 citations in OpenAlex.

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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

8 authors at 1 institution in 1 country.

Yasushi KitaokaDepartment of Molecular Neuroscience, St. Marianna University Graduate School of Medicine, Kanagawa, Japan.
Kana SaseDepartment of Ophthalmology, St. Marianna University School of Medicine, Kanagawa, Japan.
Chihiro TsukaharaDepartment of Molecular Neuroscience, St. Marianna University Graduate School of Medicine, Kanagawa, Japan.
Naoki FujitaDepartment of Molecular Neuroscience, St. Marianna University Graduate School of Medicine, Kanagawa, Japan.
Ibuki ArizonoDepartment of Molecular Neuroscience, St. Marianna University Graduate School of Medicine, Kanagawa, Japan.
Jiro KogoDepartment of Ophthalmology, St. Marianna University School of Medicine, Kanagawa, Japan.
Naoto TokudaDepartment of Ophthalmology, St. Marianna University School of Medicine, Kanagawa, Japan.
Hitoshi TakagiDepartment of Ophthalmology, St. Marianna University School of Medicine, Kanagawa, Japan.
St. Marianna University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Purpose: Netarsudil, a Rho kinase inhibitor with norepinephrine transport inhibitory effect, lowers intraocular pressure, however, its effect on axon damage remains to be elucidated. The aim of the current study was to investigate the effect of netarsudil on TNF-induced axon loss and to examine whether it affects phosphorylated-AMP-activated kinase (p-AMPK) and autophagy in the optic nerve. Methods: Intravitreal administration of TNF or TNF with netarsudil was carried out on rats and quantification of axon number was determined. Electron microscopy determined autophagosome numbers. Localization of p-AMPK expression was examined by immunohistochemistry. The changes in p62, LC3-II, and p-AMPK levels were estimated in the optic nerve by immunoblot analysis. The effect of an AMPK activator A769662 or an AMPK inhibitor dorsomorphin on axon number was evaluated. Results: Morphometric analysis revealed apparent protection by netarsudil against TNF-induced axon degeneration. Netarsudil increased autophagosome numbers inside axons. Netarsudil treatment significantly upregulated optic nerve LC3-II levels in both the TNF-treated eyes and the control eyes. Increased p62 protein level induced by TNF was significantly ameliorated by netarsudil. The netarsudil administration alone lessened p62 levels. Netarsudil significantly upregulated the optic nerve p-AMPK levels. A769662 exhibited obvious axonal protection against TNF-induced damage. A769662 treatment upregulated LC3-II levels and the increment of p62 level induced by TNF was significantly ameliorated by A769662. Immunohistochemical analysis revealed that p-AMPK is present in axons. Netarsudil-mediated axonal protection was significantly suppressed by dorsomorphin administration. Conclusions: Netarsudil upregulated p-AMPK and autophagy. Netarsudil-mediated axonal protection may be associated with upregulated p-AMPK.

Indexed as

AMP-Activated Protein KinasesAnimalsAutophagyAxonsBenzoatesbeta-AlanineBiphenyl CompoundsEnzyme InhibitorsImmunohistochemistryIntravitreal InjectionsMaleMicroscopy, ElectronMicrotubule-Associated ProteinsNerve DegenerationOptic NerveProtein Kinase Inhibitors4-hydroxy-3-(4-(2-hydroxyphenyl)phenyl)-6-oxo-7H-thieno(2,3-b)pyridine-5-carbonitrileAMP-Activated Protein KinasesAnxa3 protein, ratBenzoatesbeta-AlanineBiphenyl CompoundsdorsomorphinEnzyme InhibitorsMicrotubule-Associated ProteinsnetarsudilProtein Kinase InhibitorsPyrazolesPyrimidinesPyronesrho-Associated KinasesSequestosome-1 ProteinThiophenesTumor Necrosis Factor-alpha

Identifiers

PMID34982146
PMCPMC8742515
OpenAlexW4206040247

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LicenceCC BY
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Registered trials

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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.