Multistaged Nanovaccines Based on Porous Silicon@Acetalated Dextran@Cancer Cell Membrane for Cancer Immunotherapy.

Fontana, Flavia; Shahbazi, Mohammad-Ali; Liu, Dongfei; Zhang, Hongbo; Mäkilä, Ermei; Salonen, Jarno; Hirvonen, Jouni T; Santos, Hélder A · Adv Mater · 2017

basic_science · Level V

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Abstract

Immunoadjuvant porous silicon (PSi)-based nanovaccines are prepared by nanoprecipitation in a glass capillary microfluidics device. Vesicles, derived from cancer cell membranes encapsulating thermally oxidized PSi nanoparticles or PSi-polymer nanosystems binding a model antigen, are biocompatible over a wide range of concentrations, and show immunostimulant properties in human cells, promoting the expression of co-stimulatory signals and the secretion of pro-inflammatory cytokines.

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