Evidence map›Paper›PMID 28756742›Full record

ArticleNanomedicine (London, England)2017

Pentablock copolymer dexamethasone nanoformulations elevate MYOC: in vitro liberation, activity and safety in human trabecular meshwork cells.

Vibhuti Agrahari, Guorong Li, Vivek Agrahari, Iris Navarro, Kristin Perkumas, Abhirup Mandal, W Daniel Stamer, Ashim K Mitra

Open access · greenAbstract read
In one paragraph

Article in Nanomedicine (London, England), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

7 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. The role of EPThe British journal of ophthalmology · 2021
    Article
  4. Article
  5. Review
  6. In vivo measurement of trabecular meshwork stiffness in a corticosteroid-induced ocular hypertensive mouse model.Proceedings of the National Academy of Sciences of the United States of America · 2019
    Article
  7. 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

8 authors at 2 institutions in 1 country.

Vibhuti AgrahariSchool of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Guorong LiDepartment of Ophthalmology, Duke University, Durham, NC 27710, USA.
Vivek AgrahariSchool of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Iris NavarroDepartment of Ophthalmology, Duke University, Durham, NC 27710, USA.
Kristin PerkumasDepartment of Ophthalmology, Duke University, Durham, NC 27710, USA.
Abhirup MandalSchool of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
W Daniel StamerDepartment of Ophthalmology, Duke University, Durham, NC 27710, USA.
Ashim K MitraSchool of Pharmacy, University of Missouri-Kansas City, Kansas City, MO 64108, USA.
Duke University · USUniversity of Missouri–Kansas City · US

Funding

VISION RESEARCHP30EY005722 · NEI · DUKE UNIVERSITY · PI Vadim Y Arshavsky · 1985 to 2026
$19.3M
Ocular Disposition of Antimicrobial AgentsR01EY009171 · NEI · UNIVERSITY OF MISSOURI KANSAS CITY · PI MITRA, ASHIM K. · 1992 to 2010
$3.0M
NEI NIH HHS P30 EY005722NEI NIH HHS R01 EY009171
6 · The paper itself

Abstract

aimThe aim of this study is to examine the elevation of MYOC in long-term treatment of human trabecular meshwork (HTM) cells using dexamethasone (DEX) encapsulated pentablock (PB) copolymer-based nanoparticles (NPs) (DEX-PB-NPs). MATERIALS &

methodsPB copolymers and DEX-PB-NPs were synthesized and characterized using nuclear magnetic resonance, gel permeation chromatography, and X-ray diffraction analyses. MYOC levels secreted from HTM cells were measured by western blot (WB) analysis.

resultsDEX-PB-NPs were formulated in the size range of 109 ± 3.77 nm (n = 3). A long term DEX release from the NPs was observed over three months. Cell viability and cytotoxicity were not affected up to 12 weeks of treatment with PB-copolymer or DEX-PB-NPs. WB data from five HTM cell strains showed that MYOC levels increased by 5.2 ± 1.3, 7.4 ± 4.3, and 2.8 ± 1.1-fold in the presence of DEX-PB-NPs compared with 9.2 ± 3.8, 2.2 ± 0.5, and 1.5 ± 0.3-fold at 4, 8 and 12 weeks in control-DEX treatment group, respectively (n = 5). Based on the decline in MYOC levels after withdrawal of DEX from control wells, DEX-PB-NPs released the DEX for at least 10 weeks.

conclusionThe treatment of HTM cells using DEX-PB-NPs were analyzed in this study. The in vitro cell-based system developed here is a valuable tool for determining the safety and effects of steroids released from polymeric NPs.

Indexed as

Adrenal Cortex HormonesCells, CulturedCell SurvivalCytoskeletal ProteinsDexamethasoneDrug CarriersDrug CompoundingDrug LiberationEye ProteinsGlycoproteinsHumansMyocilinNanoparticlesParticle SizePolyestersPolyethylene GlycolsAdrenal Cortex HormonesCytoskeletal ProteinsDexamethasoneDrug CarriersEye ProteinsGlycoproteinsMyocilinpolycaprolactonePolyestersPolyethylene GlycolsProstaglandins Ablock copolymerMYOCnanoparticlesteroidssustained releasetrabecular meshwork cellswestern blot

Identifiers

PMID28756742
PMCPMC5551562
OpenAlexW2741560315

What OpenQuestion holds

Textmetadata
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.