Targeted nanoparticles home in on specific breast cancer receptors to improve paclitaxel delivery.
This review focuses on surface-functionalized polymeric nanoparticles for active targeting of breast cancer cells. Ligands like folic acid (folate receptor), hyaluronic acid (CD44), aptamers, and peptides (HER2) enable receptor-mediated endocytosis, improving drug delivery to cancer cells while…
Targeted nanoparticles home in on specific breast cancer receptors to improve paclitaxel delivery.
This review focuses on surface-functionalized polymeric nanoparticles for active targeting of breast cancer cells. Ligands like folic acid (folate receptor), hyaluronic acid (CD44), aptamers, and peptides (HER2) enable receptor-mediated endocytosis, improving drug delivery to cancer cells while reducing systemic toxicity. Key design considerations include ligand density, nanoparticle architecture, and multifunctionality.
Key Findings
- Surface functionalization enables receptor-targeted paclitaxel delivery to breast cancer cells
- Target receptors include folate receptor, CD44, and HER2—all overexpressed in BC
- Receptor-mediated endocytosis increases intracellular drug delivery
- Next-generation designs incorporate multifunctionality and optimized ligand density
- Addresses paclitaxel's clinical limitations of poor solubility and systemic toxicity
Implications
Surface-engineered nanoparticles could improve breast cancer treatment by delivering higher drug concentrations to tumors with fewer side effects.
Caveats
Review article; abstract-only. Most supporting studies in cell lines or animal models. Clinical translation is a major challenge.
Source: AAPS PharmSciTech — 2026-04-10