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…

Share
Targeted nanoparticles home in on specific breast cancer receptors to improve paclitaxel delivery.

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

Read more