Cited by 46Advanced Drug Delivery SystemsNanoparticle-Based Drug DeliveryOcular Oncology and Treatments

In Vitro Evaluation of a Targeted and Sustained Release System for Retinoblastoma Cells Using Doxorubicin as a Model Drug

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Boddu, Sai H.S., Jwala, Jwala, Chowdhury, Monica R., Mitra, Ashim K.·2010·Journal of Ocular Pharmacology and Therapeutics

Abstract

PURPOSE: The objective of this study was to develop a novel folate receptor-targeted drug delivery system for retinoblastoma cells using doxorubicin (DOX) as a model drug. METHODS: Biodegradable DOX-loaded poly(d,l-lactide-co-glycolide)-poly(ethylene glycol)-folate (PLGA-PEG-FOL) micelles (DOXM) were prepared with various solvents (dimethylsulfoxide, acetone, and dimethylformamide). The effects of solvents on entrapment efficiency, particle size, and polydispersity were examined. The effects of thermosensitive gel structure on the release of DOX from the DOXM were also studied. Qualitative and quantitative uptake studies of DOX and DOXM were carried out in Y-79 cell line. Cytotoxicity studies of DOXM were performed on Y-79 cells. RESULTS: Based on size, polydispersity, and entrapment efficiency, dimethylformamide was found to be the most suitable solvent for the preparation of DOXM. Dispersion of DOXM in PLGA-PEG-PLGA gel sustained drug release for a period of 2 weeks. Uptake of DOX was ∼4 times higher with DOXM than DOX in Y-79 cells overexpressing folate receptors. This was further confirmed from the quantitative uptake studies. DOXM exhibited higher cytotoxicity in Y-79 cells when compared with pure DOX. CONCLUSION: These polymeric micellar systems suspended in thermosensitive gels may provide sustained and targeted delivery of anticancer agents to retinoblastoma cells following intravitreal administration.

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Authors
Boddu, S. H. S., Jwala, J., Chowdhury, M. R., & Mitra, A. K.
Affiliations
University of Missouri–Kansas City (US)
Corresponding author
Mitra, Ashim K.
Venue
Journal of Ocular Pharmacology and Therapeutics
Published
2010-10
Volume
26
Issue
5
Pages
459-468
ISSN
  • 1080-7683 (ISSN-L)
  • 1557-7732
OpenAlex
W2035506230
Cited by
46
References
40
Citations by year
2025: 6 · 2024: 4 · 2023: 3 · 2022: 1 · 2021: 3 · 2020: 6 · 2019: 2 · 2018: 2 · 2017: 3 · 2016: 3 · 2015: 3 · 2014: 1 · 2013: 3 · 2012: 3
FWCI
1.79
Type
journal article
Language
en
Open access
Locations
  • Journal of Ocular Pharmacology and Therapeutics (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • Directorate for Biological Sciences
  • National Eye Institute (R01EY009171, R01EY10659-12, R01EY09171-16, R01EY010659)
Topics
  • Life Sciences › Pharmacology, Toxicology and Pharmaceutics › Pharmaceutical Science › Advanced Drug Delivery Systems
  • Physical Sciences › Materials Science › Biomaterials › Nanoparticle-Based Drug Delivery
  • Health Sciences › Medicine › Ophthalmology › Ocular Oncology and Treatments
Keywords
retinoblastoma, doxorubicin, folate receptor targeting, polymeric micelles, thermosensitive hydrogel, sustained drug release, targeted drug delivery, Y79 cells, intravitreal administration, cytotoxicity
MeSH terms
Polylactic Acid-Polyglycolic Acid Copolymer, Antibiotics, Antineoplastic, Cell Survival, Delayed-Action Preparations, Doxorubicin, Drug Carriers, Folic Acid, Gels, Humans, Micelles, Particle Size, Polyethylene Glycols, Polyglycolic Acid, Polymers, Retinoblastoma, Solvents, Drug Delivery Systems, Lactic Acid, Cell Line, Tumor, Molecular Targeted Therapy

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