4.5 Article

Dendritic lipopeptide liposomes decorated with dual-targeted proteins

Journal

BIOMATERIALS SCIENCE
Volume 10, Issue 24, Pages 7032-7041

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2bm00952h

Keywords

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Funding

  1. National Key R&D Program of China [2017YFA0701301]
  2. Natural Science Foundation of China [92163214, 51803089, 51690153, 21720102005]
  3. Natural Science Foundation of Jiangsu Province [BK20202002]
  4. Fundamental Research Funds for the Central Universities [0205-14380264]

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This study reports a novel tumor-targeted liposome based on the protein-anchored cell membrane architecture. The liposome, called dtDLP, was constructed through the electrostatic interaction between dendritic lipopeptide liposomes and a dual-targeted recombinant protein, and it demonstrated superior tumor homing, cellular endocytotic, and penetration abilities.
Due to their homing effects, cell and cell membrane-derived nanocarriers have been widely used to enhance drug target delivery. Inspired by the protein-anchored cell membrane architecture, we here report a tumor-targeted liposome, dtDLP, which was constructed through the electrostatic interaction between dendritic lipopeptide liposomes and a dual-targeted recombinant protein, achieving superior tumor homing, cellular endocytotic and penetration abilities. The dual-targeted recombinant protein consists of an anti-epidermal growth factor receptor single domain antibody and a peptide ligand for the integrin alpha(v)beta(3). dtDLPs substantially reduced macrophage phagocytosis and increased drug internalization in both 4T1 cells and HeLa cells by providing more endocytic pathways. In addition, the dtDLPs showed great penetration ability in both multicellular spheroids and tumor tissues. Due to the improved cancer cellular uptake and tumor penetration, the dtDLPs exhibited a superior anticancer effect in both HeLa and 4T1 tumor-bearing mice. This work will be helpful for the design of cell-specific liposomes with admirable tumor targeting, endocytotic and penetration abilities.

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