Abstract
Aim: To investigate Prussian blue nanoparticles (PBNPs) coated with the synthetic analog of dsRNA polyinosinic-polycytidylic acid (polyIC) for their ability to function as HIV latency reversing agents. Methods: A layer-by-layer method was used to synthesize polyIC-coated PBNPs (polyIC-PBNPs). PolyIC-PBNPs were stable and monodisperse, maintained the native absorbance properties of both polyIC and PBNPs and were obtained with high nanoparticle collection yield and polyIC attachment efficiencies. Results: PolyIC-PBNPs were more effective in reactivating latent HIV than free polyIC in a cell model of HIV latency. Furthermore, polyIC-PBNPs were more effective in promoting immune activation than free polyIC in CD4 and CD8 T cells. Conclusion: PBNPs function as efficient carriers of nucleic acids to directly reverse HIV latency and enhance immune activation.
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