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A flexible polymer system for effective mRNA delivery in cancer immunotherapy
Updated
Abstract
PFHA-PEI--HP achieved ultra-high efficiency of >90% across multiple cancer cell types.
- Polymeric mRNA delivery platforms, like PFHA-PEI-mRNA-HP, may offer advantages over lipid nanoparticles in terms of safety, storage, and cost.
- Simultaneous fluorination and heparinization of low molecular weight polyethylenimine (PEI) significantly improved the delivery platform's properties.
- Enhanced physicochemical properties led to increased cellular uptake, endosomal escape capability, and biocompatibility.
- PFHA-PEI-mRNA-HP showed superior stability compared to Lipofectamine 2000 when stored above 0 °C for 15 days.
- When combined with anti-PD-L1 therapy, this platform effectively inhibited tumor growth in a triple-negative breast cancer mouse model without harming healthy tissues.
Simplified
Key numbers
>90%
Efficiency
Achieved across multiple cancer cell types.
4 of 6 mice tumor-free
Tumor Suppression
In a triple-negative breast cancer mouse model.
15 days
Storage Stability
Compared to Lipofectamine 2000.