Evidence map›Paper›PMID 30271148›Full record

ArticleInternational journal of nanomedicine2018

PPARγ agonist-loaded PLGA-PEG nanocarriers as a potential treatment for Alzheimer's disease: in vitro and in vivo studies.

Marcelle Silva-Abreu, Ana Cristina Calpena, Pol Andrés-Benito, Ester Aso, Ignacio A Romero, David Roig-Carles, Radka Gromnicova, Marta Espina, Isidre Ferrer, María Luisa García and 1 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2018. 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 37 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
37citing papers in PubMed, 1 pooled it
2.6field-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

37 citing papers in PubMed, 1 synthesis or guideline pooled it, 85 citations in OpenAlex.

  1. Pooled it
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  5. Optimized PLGA encapsulated SA-2 nanosuspension exhibits sustained intraocular pressure reduction in the mouse microbead occlusion model of ocular hypertension.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2025
    Article
  6. Development of Polymeric Nanoparticles Loaded withInternational journal of molecular sciences · 2025
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  17. Polarization of Microglia and Its Therapeutic Potential in Sepsis.International journal of molecular sciences · 2022
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors at 3 institutions in 2 countries.

Marcelle Silva-AbreuDepartment of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Ana Cristina CalpenaDepartment of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Pol Andrés-BenitoServei d'Anatomia Patològica, Institut d'Investigació Biomèdica de Bellvitge-Hospital Universitari de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Spain.
Ester AsoServei d'Anatomia Patològica, Institut d'Investigació Biomèdica de Bellvitge-Hospital Universitari de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Spain.
Ignacio A RomeroSchool of Life, Health and Chemical Sciences, Faculty of Science, The Open University, Walton Hall, Milton Keynes, UK, david.male@open.ac.uk.
David Roig-CarlesSchool of Life, Health and Chemical Sciences, Faculty of Science, The Open University, Walton Hall, Milton Keynes, UK, david.male@open.ac.uk.
Radka GromnicovaSchool of Life, Health and Chemical Sciences, Faculty of Science, The Open University, Walton Hall, Milton Keynes, UK, david.male@open.ac.uk.
Marta EspinaDepartment of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
Isidre FerrerServei d'Anatomia Patològica, Institut d'Investigació Biomèdica de Bellvitge-Hospital Universitari de Bellvitge, Universitat de Barcelona, L'Hospitalet de Llobregat, Spain.
María Luisa GarcíaDepartment of Pharmacy, Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Barcelona, Spain.
David MaleSchool of Life, Health and Chemical Sciences, Faculty of Science, The Open University, Walton Hall, Milton Keynes, UK, david.male@open.ac.uk.
The Open University · GBInstitut de Nanociència i Nanotecnologia de la Universitat de BarcelonaInstituto de Salud Carlos III · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThe first aim of this study was to develop a nanocarrier that could transport the peroxisome proliferator-activated receptor agonist, pioglitazone (PGZ) across brain endothelium and examine the mechanism of nanoparticle transcytosis. The second aim was to determine whether these nanocarriers could successfully treat a mouse model of Alzheimer's disease (AD).

methodsPGZ-loaded nanoparticles (PGZ-NPs) were synthesized by the solvent displacement technique, following a factorial design using poly (lactic-co-glycolic acid) polyethylene glycol (PLGA-PEG). The transport of the carriers was assessed in vitro, using a human brain endothelial cell line, cytotoxicity assays, fluorescence-tagged nanocarriers, fluorescence-activated cell sorting, confocal and transmission electron microscopy. The effectiveness of the treatment was assessed in APP/PS1 mice in a behavioral assay and by measuring the cortical deposition of β-amyloid.

resultsIncorporation of PGZ into the carriers promoted a 50x greater uptake into brain endothelium compared with the free drug and the carriers showed a delayed release profile of PGZ in vitro. In the doses used, the nanocarriers were not toxic for the endothelial cells, nor did they alter the permeability of the blood-brain barrier model. Electron microscopy indicated that the nanocarriers were transported from the apical to the basal surface of the endothelium by vesicular transcytosis. An efficacy test carried out in APP/PS1 transgenic mice showed a reduction of memory deficit in mice chronically treated with PGZ-NPs. Deposition of β-amyloid in the cerebral cortex, measured by immunohistochemistry and image analysis, was correspondingly reduced.

conclusionPLGA-PEG nanocarriers cross brain endothelium by transcytosis and can be loaded with a pharmaceutical agent to effectively treat a mouse model of AD.

Indexed as

Disease Models, AnimalAlzheimer DiseaseAmyloid beta-Protein PrecursorAnimalsBlood-Brain BarrierCells, CulturedDrug CarriersHumansHypoglycemic AgentsIn Vitro TechniquesMaleMemory DisordersMiceMice, Inbred C57BLMice, TransgenicNanoparticlesAmyloid beta-Protein PrecursorAPP protein, humanDrug CarriersHypoglycemic AgentsPioglitazonePolyesterspolyethylene glycol-poly(lactide-co-glycolide)Polyethylene GlycolsPPAR gammaPresenilin-1PSEN1 protein, humanThiazolidinedionesAlzheimer’s diseaseAPP/PS1 transgenic mouseblood-brain barrierbrain endotheliumnanoparticlepioglitazone

Identifiers

PMID30271148
PMCPMC6154713
OpenAlexW2891728857

What OpenQuestion holds

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LicenceCC BY-NC
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.