ArticleTherapeutic delivery2025
Development and evaluation of targeted liposomes for improved doxorubicin and quercetin delivery for MDR breast cancer.
Article in Therapeutic delivery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.
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Corrections and comments
- Erratum issuedCorrection.2026
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionBreast cancer remains one of the leading causes of cancer-related deaths among women worldwide. Despite the availability of chemotherapeutics, such as doxorubicin, treatment efficacy, is often hampered by multidrug resistance, largely driven by efflux transporters like P-glycoprotein. AIM &
objectivesThis study aimed to develop and evaluate a targeted liposomal system for the co-delivery of doxorubicin and quercetin to overcome multidrug resistance in breast cancer cells. The objective was to enhance therapeutic efficacy while minimizing systemic toxicity.
methodLiposomes were prepared using the thin-film hydration method and optimized via Box-Behnken Design. Two formulations, doxorubicin and quercetin liposomes (DOX-QCT-LIPO) and Trastuzumab conjugated (TmAb-DOX-QCT-LIPO), were characterized for vesicle size, PDI, and entrapment efficiency. Their cytotoxicity (MTT assay) and cellular uptake (FACS) were tested in MCF-7 and MCF-7/ADR cell lines.
resultsOptimized formulations exhibited nanoscale size, uniform distribution, and high drug encapsulation. Tmab-DOX-QCT-LIPO showed significantly enhanced cytotoxicity and uptake in MDR breast cancer cells compared to free DOX and non-targeted liposomes, indicating effective bypass of efflux mechanisms via HER2-mediated endocytosis.
conclusionTmAb-DOX-QCT-LIPO demonstrated superior anticancer potential by integrating dual-drug loading, P-gp inhibition, and HER2-targeted uptake, offering a promising therapeutic strategy against MDR breast cancer.
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