Affiliation:
1. Shenzhen Key Laboratory of Smart Healthcare Engineering Guangdong Provincial Key Laboratory of Advanced Biomaterials Department of Biomedical Engineering Southern University of Science and Technology Shenzhen Guangdong 518055 P.R. China
2. Division of Liver Surgery and Organ Transplantation Center Shenzhen Third People's Hospital Second Affiliated Hospital Southern University of Science and Technology Shenzhen Guangdong 518112 P.R. China
Abstract
AbstractMulti‐component nanoparticles (mNPs) hold great potential for disease prevention and treatment. However, a major barrier is the lack of versatile platforms to accommodate steps of assembly processes of mNPs. Here the microfluidics‐enabled serial assembly (MESA) of mNPs is presented. The microfluidic chip, as a mini‐conveyor of initial materials, sequentially enables the assembly of sorafenib supramolecule, electrostatic adsorption of siRNA, and surface assembly of protective lipids. The produced lipid‐siRNA‐sorafenib nanoparticles (LSS NPs) have ultrahigh encapsulation efficiencies for sorafenib (≈100%) and siRNA (≈95%), which benefit from the accommodation of both fast and slow processes on the chip. Although carrying negative charges, LSS NPs enable cytosolic delivery of agents and high gene silencing efficiency within tumor cells. In vivo, the LSS NPs delivering hypoxia‐induced factor (HIF1α)‐targeted siRNA efficiently regress tumors of Hep3B xenograft and hepatocellular carcinoma patient‐derived primary cells xenograft (PDCX) and finally extend the average survival of PDCX mice to 68 days. Thus, this strategy is promising as a sorafenib/siRNA combination therapy, and MESA can be a universal platform for fabricating complex nanosystems.
Funder
National Natural Science Foundation of China
Guangdong Innovative and Entrepreneurial Research Team Program
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Cited by
3 articles.
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