Evidence map›Paper›PMID 28925755›Full record

ArticleDrug delivery2017

Toward smart design of retinal drug carriers: a novel bovine retinal explant model to study the barrier role of the vitreoretinal interface.

Karen Peynshaert, Joke Devoldere, Valérie Forster, Serge Picaud, Christian Vanhove, Stefaan C De Smedt, Katrien Remaut

Abstract read
In one paragraph

Article in Drug delivery, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

27 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Nanomedicine in Ophthalmology: From Bench to Bedside.Journal of clinical medicine · 2024
    Review
  8. Review
  9. Article
  10. Article
  11. Glaucoma Animal Models beyond Chronic IOP Increase.International journal of molecular sciences · 2024
    Review
  12. Review
  13. The Bovine Ex Vivo Retina: A Versatile Model for Retinal Neuroscience.Investigative ophthalmology & visual science · 2023
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Review
  20. Article
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

7 authors.

Karen Peynshaerta Lab of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.
Joke Devolderea Lab of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.
Valérie Forsterc Institut de la Vision , INSERM, Université Paris 6 , Paris , France.
Serge Picaudc Institut de la Vision , INSERM, Université Paris 6 , Paris , France.
Christian Vanhoved Department of Respiratory Medicine , Ghent University , Ghent , Belgium.
Stefaan C De Smedta Lab of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.
Katrien Remauta Lab of General Biochemistry and Physical Pharmacy, Faculty of Pharmaceutical Sciences , Ghent University , Ghent , Belgium.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Retinal gene delivery via intravitreal injection is hampered by various physiological barriers present in the eye of which the vitreoretinal (VR) interface represents the most serious hurdle. In this study, we present a retinal explant model especially designed to study the role of this interface as a barrier for the penetration of vectors into the retina. In contrast to all existing explant models, the developed model is bovine-derived and more importantly, keeps the vitreous attached to the retina at all times to guarantee an intact VR interface. After ex vivo intravitreal injection into the living retinal explant, the route of fluorescent carriers across the VR interface can be tracked. By applying two different imaging methods on this model, we discovered that the transfer through the VR barrier is size-dependent since 40 nm polystyrene particles are more easily taken up in the retina than 100 and 200 nm sized particles. In addition, we found that removing the vitreous, as commonly done for culture of conventional explants, leads to an overestimation of particle uptake, and conclude that the ultimate barrier to overcome for retinal uptake is undoubtedly the inner limiting membrane. Damaging this matrix resulted in a massive increase in particle transfer into the retina. In conclusion, we have developed a highly relevant ex vivo model that maximally mimics the human in vivo physiology which can be applied as a representative test set-up to assess the potential of promising drug delivery carriers to cross the VR interface.

Indexed as

RetinaAnimalsCattleDrug CarriersGenetic TherapyGene Transfer TechniquesHumansDrug Carriersex vivoinner limiting membranelarge animalnanoparticleretinal explantretinal gene deliveryVitreoretinal interfacevitreous

Identifiers

PMID28925755
PMCPMC8241179

What OpenQuestion holds

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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.