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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.12
- 수록면
- 112 - 129 (18page)
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Pathogen-associated molecular patterns (PAMPs) are highly conserved motifs originating from microorganisms that act as ligands for pattern recognition receptors (PRRs), which are crucial for defense against pathogens. Thus, PAMP-mimicking vaccines may induce potent immune activation and provide broad-spectrum protection against microbes. Dextran encapsulation can regulate the surface characteristics of nanoparticles (NPs) and induces their surface modification. To determine whether dextran-encapsulated NPs can be used to develop antiviral vaccines by mimicking viral PAMPs, we synthesized NPs in a cyclohexane inverse miniemulsion (Basic-NPs) and further encapsulated them with dextran or tetramethylrhodamine isothiocyanate (TRITC)-dextran (Dex-NPs or TDex-NPs). We hypothesized that these dextran encapsulated NPs could activate innate immunity through cell surface or cytosolic PRRs. In vitro and in vivo experiments were performed using RAW 264.7 and C57BL/6 mice to test different concentrations and routes of administration. Only TDex-NPs rapidly increased retinoic acid-inducible gene I (RIG-I) at 8 h and directly bound to it, producing 120–300 pg/ml of IFN-α via the ERK/NF-κB signaling pathway in both in vitro and in vivo models. The effect of TDex-NPs in mice was observed exclusively with footpad injections. Our findings suggest that TRITC-dextran encapsulated NPs exhibit surface properties for RIG-I binding, offering potential development as a novel antiviral and anticancer RIG-I agonist.
목차
ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES
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