Effect of trastuzumab on the micellization properties, endocytic pathways and antitumor activities of polyurethane-based drug delivery system

Polyurethane micelles (PM)-based nanovehicles have shown great potential in targeted delivery of therapeutics and diagnostics into tumors. However, the pathways of PMs entering cancer cells and the action mechanism of targeting ligands have yet to be understood. In this contribution, the actively-targeted PM were developed using trastuzumab as a model targeting group. It was found that PM were mainly taken up by SKOV-3 tumor cells via a...