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Related Experiment Video

Updated: Feb 16, 2026

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Genetically Engineered Liposome-like Nanovesicles as Active Targeted Transport Platform.

Pengfei Zhang1, Long Zhang1,2, Zainen Qin1,3

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Advanced Materials (Deerfield Beach, Fla.)
|December 28, 2017
PubMed
Summary

Biofunctionalized liposome-like nanovesicles (BLNs) offer enhanced drug delivery by displaying targeting ligands. These engineered BLNs show superior targeting and antitumor efficacy compared to conventional treatments.

Keywords:
biofunctionalized nanovesiclesbiomimetic synthesisexosomesligand-targeted deliverytheranostics

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Area of Science:

  • Biomedical Engineering
  • Nanotechnology
  • Drug Delivery

Background:

  • Ligand-targeted drug delivery to tumors is a significant challenge in precision medicine.
  • Natural exosomes inspire biomimetic strategies for creating nanovesicles for drug delivery.
  • Developing synthetic nanovesicles with specific targeting capabilities is crucial for advanced therapeutics.

Purpose of the Study:

  • To develop biofunctionalized liposome-like nanovesicles (BLNs) for targeted cancer therapy.
  • To engineer BLNs displaying specific ligands (hEGF, anti-HER2 Affibody) for targeting distinct tumor cells.
  • To compare the efficacy of biosynthetically displayed ligands with covalently coupled ligands.

Main Methods:

  • Genetically engineered BLNs were created to display human epidermal growth factor (hEGF) or anti-HER2 Affibody.
  • Targeting capabilities and biological activities of BLNs were evaluated.
  • Doxorubicin-loaded BLNs were tested in HER2-overexpressing BT474 tumor xenograft models.
  • Therapeutic outcomes were compared to clinically approved liposomal doxorubicin (Doxil).

Main Results:

  • Biosynthetically displayed hEGF ligands on BLNs showed higher biological activity and targeting capability than covalently coupled ligands.
  • Doxorubicin-loaded BLNs with Affibody ligands demonstrated superior antitumor therapeutic outcomes in xenograft models.
  • BLNs exhibited excellent targeting capacities and facile production.

Conclusions:

  • Biofunctionalized liposome-like nanovesicles (BLNs) are effective for targeted drug delivery.
  • BLNs represent a potent surrogate for conventional proteoliposomes and immunoliposomes.
  • This approach facilitates enhanced drug delivery and improved antitumor therapy.