IL-11-Engineered Macrophage Membrane-Coated Reactive Oxygen Species-Responsive Nanoparticles for Targeted Delivery of Doxorubicin to Osteosarcoma.

ABSTRACT: Osteosarcoma (OS) is a lethal malignant orthotopic bone tumor that primarily affects children and adolescents. Biomimetic nanocarriers have attracted wide attention as a new strategy for delivering chemotherapy agents to the OS. However, challenges such as rapid clearance and limited targeting hinder the effectiveness of OS chemotherapy. In this study, we designed reactive oxygen species (ROS)-responsive nanoparticles (NPs) coated with an interleukin (IL)11-engineered macrophage membrane (MM). The camouflage by MMs prevents clearance of IL-11-engineered MM-coated NPs loaded with doxorubicin (IL-11/MM@NPs/Dox) by the immune system. Moreover, the macrophage membrane combined with surface-expressed IL-11 not only directed IL-11/MM@NPs/Dox to OS tissues but also selectively identified IL-11 re

SUBMITTER: Jiang H 

PROVIDER: S-EPMC11493053 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature