Evidence map›Paper›PMID 31496691›Full record

ArticleInternational journal of nanomedicine2019

Poly(lactic-co-glycolic acid) nanoparticle-mediated interleukin-12 delivery for the treatment of diabetic retinopathy.

Lina Zeng, Wenbei Ma, Lingyu Shi, Xiaohong Chen, Rong Wu, Yingying Zhang, Huaiwen Chen, Hui Chen

Open access · goldAbstract read
In one paragraph

Article in International journal of nanomedicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
3.5field-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

20 citing papers in PubMed, 40 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Review
  8. Review
  9. Review
  10. Biodegradable Polymer-Based Drug-Delivery Systems for Ocular Diseases.International journal of molecular sciences · 2023
    Review
  11. Article
  12. Review
  13. Article
  14. Review
  15. Article
  16. Review
  17. Review
  18. Nano-engineered tools in the diagnosis, therapeutics, prevention, and mitigation of SARS-CoV-2.Journal of controlled release : official journal of the Controlled Release Society · 2021
    Review
  19. Review
  20. Review
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.

Lina Zeng *Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Wenbei Ma *Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Lingyu ShiDepartment of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Xiaohong ChenDepartment of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Rong WuDepartment of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Yingying ZhangSunlipo Biotech Research Center for Nanomedicine, Shanghai 201507, People's Republic of China.
Huaiwen ChenSunlipo Biotech Research Center for Nanomedicine, Shanghai 201507, People's Republic of China.
Hui ChenDepartment of Ophthalmology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, People's Republic of China.
Zhujiang Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDiabetic retinopathy (DR) is a complication of diabetes that affects the eyes and vision. It is a leading cause of visual impairment and blindness in working-age people. Vascular endothelial growth factor-A (VEGF-A) is a primary initiator and potential mediator of DR. Matrix metalloproteinase-9 (MMP-9) plays a progressive role in the onset and severity of DR. Interleukin-12 (IL-12) is a cytokine of the chemokine family that could reduce the levels of MMP-9 and VEGF-A and suppress tumor angiogenesis. We hypothesize that IL-12 may also have superior therapeutic efficacy against DR. However, protein drugs are prone to degradation by various proteases after drug injection. Therefore, they have short half-lives and low blood concentrations. The objective of this study was to develop IL-12-loaded nanoparticles for long-term and sustained DR treatment.

methodsIL-12-loaded poly(lactic-co-glycolic acid) (PLGA) nanoparticles (IL-12-PNP) were developed by double emulsion. The characteristics, anti-DR activity, and mechanisms of IL-12-PNP were examined in vitro and in vivo.

resultsThe nanoparticles had suitable particle size (~132.8 nm), drug encapsulation efficiency (~34.7%), and sustained drug release profile. Compared with IL-12 and blank nanoparticles, IL-12-PNP showed better inhibitory efficacy against VEGF-A and MMP-9 expression in rat endothelial cells and DR mouse retina. Intraocular IL-12-PNP administration significantly reduced retinal damage in DR mice as they presented with increased thickness and decreased neovascularization after treatment.

conclusionThese data indicate that IL-12-PNP is an effective drug delivery platform for DR therapy. It restores the thickness and reduces neovascularization of the retinas of DR mice.

Indexed as

Drug Delivery SystemsAnimalsDelayed-Action PreparationsDiabetic RetinopathyEndothelial CellsInterleukin-12Intravitreal InjectionsMaleMatrix Metalloproteinase 9MiceNanoparticlesNeovascularization, PathologicPolylactic Acid-Polyglycolic Acid CopolymerRats, Sprague-DawleyRetinaVascular Endothelial Growth Factor ADelayed-Action PreparationsInterleukin-12Matrix Metalloproteinase 9Polylactic Acid-Polyglycolic Acid CopolymerVascular Endothelial Growth Factor Aangiogenesiscontrolled releasediabetic retinopathyinterleukin-12nanoparticles

Identifiers

PMID31496691
PMCPMC6690602
OpenAlexW2964557546

What OpenQuestion holds

Textmetadata
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.