Novel fluorinated polycationic delivery of anti-VEGF siRNA for tumor therapy
Source abstract
Abstract
Abstract Small-interfering RNA (siRNA) can specifically silence disease gene expression, bringing hope for the effective treatment of gene-related diseases. However, its use in vivo is limited due to the lack of efficient carriers. Therefore, it is necessary to construct carriers with high efficiency, low toxicity and serum stability. As a promising polycation carrier, polyethylenimine (PEI) can be further modified with a fluorine-containing alkyl chain that brings hydrophobic and oleophobic characteristics to its surface. In this study, low molecular weight PEI 1.8 kDa was selected and fluorinated through an anhydride reaction, and the product was named PEIF. In vitro experiments have shown that PEIF/siRNA polyplexes have suitable and stable particle size and potential, compress nucleic acids at a very low w/w ratio, and have the ability to effectively silence specific genes with low cytotoxicity. Compared with the polyplexes prepared using PEI 25 kDa, the PEIF/siRNA polyplexes were more stable in serum, showed a better antiangiogenic ability in in vivo experiments, and had a better tumor inhibition effect. The above results indicate that fluoropolymers based on the fluorine effect have great potential as gene delivery carriers for tumor therapy.
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Research context
OpenAlex topics: RNA Interference and Gene Delivery · Advanced biosensing and bioanalysis techniques · Dendrimers and Hyperbranched Polymers
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (40)
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