Cited by 129Advanced Drug Delivery SystemsNanoparticle-Based Drug DeliveryAdvancements in Transdermal Drug Delivery

In vivo distribution of surface-modified PLGA nanoparticles following intravaginal delivery

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Cu, Yen, Booth, Carmen J., Saltzman, W. Mark·2011·Journal of Controlled Release

Abstract

Intravaginal (ivag) delivery, which is a proven way to confer local protection against STDs contracted via the reproductive tract, is complicated by the mucus gel barrier, the hormone cycle, and the harsh mucosal environment that leads to low residence-time for administered agents. Polymer delivery vehicles may be useful in overcoming these barriers. In this study, we explored the fate of nanoparticles (NP) made from poly(lactide-co-glycolide) (PLGA) in the mouse reproductive tract after ivag delivery. The nanoparticles were modified to display avidin (Avid-NP) or 2 kDa PEG (PEG-NP) on their surface. Vaginal retention fractions for both muco-adhesive Avid-NP and stealthy PEG-NP were 5× higher than unmodified PLGA particles (NP). The amount of particles associated with mucus differed across formulations (Avid-NP>NP>PEG-NP). PEG-NP was found at higher concentration in the tissue than Avid-NP and NP up to 6h after delivery, and particles were found within epithelial cells, the underlying submucosal stromal and fibroblast cells of the vaginal tissue. Our results demonstrate that surface properties of nanoparticles can impact their fates following ivag delivery. Moreover, we show that the muco-evasive PEG-modified nanoparticles are the most effective among the delivery vehicles tested for this application.

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Crossref · 10.1016/j.jconrel.2011.06.036

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  • In that study, the highest tissue uptake was achieved with PEG-coated nanoparticles; however, tissue uptake was limited to the lower reproductive tract.

    “The highest tissue uptake was achieved with PEG-coated nanoparticles; however, tissue uptake was limited to the lower reproductive tract.”

    From Nanotechnology approaches for global infectious diseases (2021) · cites this paper as [23]

  • In a study from the Saltzman group, leakage out of the vaginal tract was highest for uncoated PLGA nanoparticles (~13% of the dose within 0.5 h).

    “Leakage out of the vaginal tract was highest for uncoated nanoparticles (~13% of the dose within 0.5 h).”

    From Nanotechnology approaches for global infectious diseases (2021) · cites this paper as [23]

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Authors
Cu, Y., Booth, C. J., & Saltzman, W. M.
Affiliations
Yale University (US)
Corresponding author
Saltzman, W. Mark
Venue
Journal of Controlled Release
Publisher
Elsevier BV
Published
2011-12
Volume
156
Issue
2
Pages
258-264
ISSN
0168-3659 (ISSN-L)
OpenAlex
W1967527831
Cited by
129
References
33
Citations by year
2026: 1 · 2025: 5 · 2024: 7 · 2023: 9 · 2022: 5 · 2021: 6 · 2020: 8 · 2019: 6 · 2018: 9 · 2017: 12 · 2016: 11 · 2015: 16 · 2014: 15 · 2013: 11 · 2012: 8
FWCI
6.68
Type
journal article
Language
en
Open access
Locations
  • Journal of Controlled Release (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Biomedical Imaging and Bioengineering (EB000487, R56EB000487, R01EB000487)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advancements in Transdermal Drug Delivery
Keywords
PLGA nanoparticles, surface modification, avidin, PEGylation, vaginal mucus, mucoadhesion, nanoparticle biodistribution, vaginal tissue, mucosal drug delivery, STD prevention, polymeric nanoparticles
MeSH terms
Administration, Intravaginal, Animals, Avidin, Coumarins, Drug Carriers, Female, Mice, Inbred C57BL, Polyethylene Glycols, Polyglactin 910, Thiazoles, Vagina, Mice, Nanoparticles

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