Evidence map›Paper›PMID 25935150›Full record

ArticleJournal of neuroinflammation2015

Amyloid β peptide-induced inhibition of endothelial nitric oxide production involves oxidative stress-mediated constitutive eNOS/HSP90 interaction and disruption of agonist-mediated Akt activation.

Folami Lamoke, Valeria Mazzone, Tiziana Persichini, Annamaria Maraschi, Michael Brennan Harris, Richard C Venema, Marco Colasanti, Micaela Gliozzi, Carolina Muscoli, Manuela Bartoli and 1 more

Open access · goldAbstract read
In one paragraph

Article in Journal of neuroinflammation, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 8% 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

40 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  7. Cerebrovascular Endothelial Dysfunction: Role of BACE1.Arteriosclerosis, thrombosis, and vascular biology · 2024
    Review
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  18. The Effect ofInternational journal of molecular sciences · 2021
    Article
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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

11 authors at 7 institutions in 2 countries.

Folami LamokeDepartment of Ophthalmology, Georgia Regents University, Health Sciences Campus, 1120 15th St., Augusta, GA, 30912, USA. flamoke@gru.edu.
Valeria MazzoneDepartment of Biology, University of Rome 'Roma Tre', Via Ostiense, 169, Rome, 00154, Italy. irc-fsh@hotmail.it.
Tiziana PersichiniDepartment of Biology, University of Rome 'Roma Tre', Via Ostiense, 169, Rome, 00154, Italy. tiziana.persichini@uniroma3.it.
Annamaria MaraschiDepartment of Neurology and Laboratory of Neuroscience, IRCCS Istituto Auxologico Italiano, Cusano Milanino 20095, Milan, Italy. mollace@hotmail.it.
Michael Brennan HarrisDepartment of Kinesiology, College of William and Mary, 200 Stadium Dr., Williamsburg, VA, 23186, USA. mbharr@wm.edu.
Richard C VenemaVascular Biology Center, Georgia Regents University, 1120 15th St., Augusta, GA, 30912, USA. rvenema@gru.edu.
Marco ColasantiDepartment of Biology, University of Rome 'Roma Tre', Via Ostiense, 169, Rome, 00154, Italy. marco.colasanti@uniroma3.it.
Micaela GliozziIRC-FSH, Department of Health Sciences, University of Catanzaro 'Magna Graecia', Catanzaro Complesso 'Ninì Barbieri', Roccelletta di Borgia, 88021, Italy. micaela.gliozzi@gmail.com.
Carolina MuscoliIRC-FSH, Department of Health Sciences, University of Catanzaro 'Magna Graecia', Catanzaro Complesso 'Ninì Barbieri', Roccelletta di Borgia, 88021, Italy. muscoli@unicz.it.
Manuela BartoliDepartment of Ophthalmology, Georgia Regents University, Health Sciences Campus, 1120 15th St., Augusta, GA, 30912, USA. mbartoli@gru.edu.
Vincenzo MollaceIRC-FSH, Department of Health Sciences, University of Catanzaro 'Magna Graecia', Catanzaro Complesso 'Ninì Barbieri', Roccelletta di Borgia, 88021, Italy. mollace@libero.it.
Roma Tre University · ITAugusta University · USMagna Graecia University · ITGeorgia Regents Medical Center · USIRCCS Istituto Auxologico Italiano · ITVita-Salute San Raffaele University · ITWilliam & Mary · US

Funding

Regulation of endogenous antioxidant systems in diabetic retinopathyR01EY022416 · NEI · AUGUSTA UNIVERSITY · PI BARTOLI, MANUELA · 2013 to 2017
$1.9M
Pin1 prolyl isomerase regulates endothelial nitric oxide synthaseR01HL108719 · NHLBI · AUGUSTA UNIVERSITY · PI VENEMA, RICHARD C · 2012 to 2015
$1.5M
NEI NIH HHS R01 EY022416NHLBI NIH HHS R01 HL108719
6 · The paper itself

Abstract

backgroundAmyloid β (Aβ)-induced vascular dysfunction significantly contributes to the pathogenesis of Alzheimer's disease (AD). Aβ is known to impair endothelial nitric oxide synthase (eNOS) activity, thus inhibiting endothelial nitric oxide production (NO).

methodIn this study, we investigated Aβ-effects on heat shock protein 90 (HSP90) interaction with eNOS and Akt in cultured vascular endothelial cells and also explored the role of oxidative stress in this process.

resultsTreatments of endothelial cells (EC) with Aβ promoted the constitutive association of HSP90 with eNOS but abrogated agonist (vascular endothelial growth factor (VEGF))-mediated HSP90 interaction with Akt. This effect resulted in blockade of agonist-mediated phosphorylation of Akt and eNOS at serine 1179. Furthermore, Aβ stimulated the production of reactive oxygen species in endothelial cells and concomitant treatments of the cells with the antioxidant N-acetyl-cysteine (NAC) prevented Aβ effects in promoting HSP90/eNOS interaction and rescued agonist-mediated Akt and eNOS phosphorylation.

conclusionsThe obtained data support the hypothesis that oxidative damage caused by Aβ results in altered interaction of HSP90 with Akt and eNOS, therefore promoting vascular dysfunction. This mechanism, by contributing to Aβ-mediated blockade of nitric oxide production, may significantly contribute to the cognitive impairment seen in AD patients.

Indexed as

AcetylcysteineAmyloid beta-PeptidesAnimalsCattleCells, CulturedDose-Response Relationship, DrugDrug InteractionsEndothelial CellsEndothelium, VascularFree Radical ScavengersHSP90 Heat-Shock ProteinsImmunoprecipitationNitric OxideNitric Oxide Synthase Type IIIOxidative StressPhosphorylationAcetylcysteineAmyloid beta-PeptidesFree Radical ScavengersHSP90 Heat-Shock ProteinsNitric OxideNitric Oxide Synthase Type IIIProto-Oncogene Proteins c-aktSerineVascular Endothelial Growth Factor A

Identifiers

PMID25935150
PMCPMC4438457
OpenAlexW2039274814

What OpenQuestion holds

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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.