Hyaluronic Acid鈥揋old Nanoparticle/Interferon 伪 Complex for Targeted Treatment of Hepatitis C Virus Infection
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文摘
Gold nanoparticles (AuNPs) have been extensively investigated as an emerging delivery carrier of various biopharmaceuticals. Instead of nonspecific polyethylene glycol (PEG) conjugated interferon 伪 (IFN伪) for the clinical treatment of hepatitis C virus (HCV) infection, in this work, a target-specific long-acting delivery system of IFN伪 was successfully developed using the hybrid materials of AuNP and hyaluronic acid (HA). The HA鈥揂uNP/IFN伪 complex was prepared by chemical binding of thiolated HA and physical binding of IFN伪 to AuNP. According to antiproliferation tests in Daudi cells, the HA鈥揂uNP/IFN伪 complex showed a comparable biological activity to PEG-Intron with a highly enhanced stability in human serum. Even 7 days postinjection, HA鈥揂uNP/IFN伪 complex was target-specifically delivered and remained in the murine liver tissue, whereas IFN伪 and PEG-Intron were not detected in the liver. Accordingly, HA鈥揂uNP/IFN伪 complex significantly enhanced the expression of 2鈥?5鈥?oligoadenylate synthetase 1 (OAS1) for innate immune responses to viral infection in the liver tissue, which was much higher than those by IFN伪, PEG-Intron, and AuNP/IFN伪 complex. Taken together, the target-specific HA鈥揂uNP/IFN伪 complex was thought to be successfully applied to the systemic treatment of HCV infection.

Keywords:

gold nanoparticle; hyaluronic acid; interferon 伪; targeted delivery; hepatitis C virus

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