The systemic delivery of composite nanoparticles remains an outstanding challenge in cancer nanomedicine, and the principal reason is a complex interplay of biological barriers. In this regard, adaptive cell transfer may represent an alternative solution to circumvent these barriers down to the tumor microenvironment. Here, tumor-tropic macrophages are proposed as a tool to draw and vehiculate modular nanoparticles integrating magnetic and plasmonic components. The end result is a bionic shuttle that exhibits a plasmonic band within the so-called therapeutic window arising from as much as 40 pg Au per cell, magnetization in the order of 150 pemu per cell, and more than 90% of the pristine viability and chemotactic activity of its biological component, until at least two days of preparation. Its synergistic combination of plasmonic, magnetic and tumor-tropic functions is assessed in vitro for applications as magnetic guidance or sorting, with a propulsion around 4 mu m s(-1) for a magnetic gradient of 0.8 T m(-1), the optical hyperthermia of cancer, with stability of photothermal conversion to temperatures exceeding 50 degrees C, and the photoacoustic imaging of cancer under realistic conditions. These results collectively suggest that a bionic design may be a promising roadmap to reconcile the efforts for multifunctionality and targeted delivery, which are both key goals in nanomedicine.
A bionic shuttle carrying multi-modular particles and holding tumor-tropic features / Borri, Claudia; Albino, Martin; Innocenti, Claudia; Pineider, Francesco; Cavigli, Lucia; Centi, Sonia; Sangregorio, Claudio; Ratto, Fulvio; Pini, Roberto. - In: MATERIALS SCIENCE AND ENGINEERING. C, BIOMIMETIC MATERIALS, SENSORS AND SYSTEMS. - ISSN 0928-4931. - STAMPA. - 117:(2020), pp. 111338.0-111338.0. [10.1016/j.msec.2020.111338]
A bionic shuttle carrying multi-modular particles and holding tumor-tropic features
Albino, Martin;Innocenti, Claudia;Pineider, Francesco;Cavigli, Lucia;Centi, Sonia;Sangregorio, Claudio;Ratto, Fulvio;Pini, Roberto
2020
Abstract
The systemic delivery of composite nanoparticles remains an outstanding challenge in cancer nanomedicine, and the principal reason is a complex interplay of biological barriers. In this regard, adaptive cell transfer may represent an alternative solution to circumvent these barriers down to the tumor microenvironment. Here, tumor-tropic macrophages are proposed as a tool to draw and vehiculate modular nanoparticles integrating magnetic and plasmonic components. The end result is a bionic shuttle that exhibits a plasmonic band within the so-called therapeutic window arising from as much as 40 pg Au per cell, magnetization in the order of 150 pemu per cell, and more than 90% of the pristine viability and chemotactic activity of its biological component, until at least two days of preparation. Its synergistic combination of plasmonic, magnetic and tumor-tropic functions is assessed in vitro for applications as magnetic guidance or sorting, with a propulsion around 4 mu m s(-1) for a magnetic gradient of 0.8 T m(-1), the optical hyperthermia of cancer, with stability of photothermal conversion to temperatures exceeding 50 degrees C, and the photoacoustic imaging of cancer under realistic conditions. These results collectively suggest that a bionic design may be a promising roadmap to reconcile the efforts for multifunctionality and targeted delivery, which are both key goals in nanomedicine.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.