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논문 기본 정보

자료유형
학술저널
저자정보
Eun-Hye Hong (Kangwon National University) Jae-Hyoung Song (Kangwon National University) Seong-Ryeol Kim (Kangwon National University) Jaewon Cho (Kangwon National University) Birang Jeong (Kangwon National University) Heejung Yang (Kangwon National University) Jae-Hyeon Jeong (Kangwon National University) Jae-Hee Ahn (Kangwon National University) Hyunjin Jeong (Kangwon National University) Seong-Eun Kim (Kangwon National University) Sun-Young Chang (Ajou University) Hyun-Jeong Ko (Kangwon National University)
저널정보
대한면역학회 Immune Network Immune Network Vol.20 No.4
발행연도
2020.8
수록면
70 - 84 (15page)

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Influenza virus is the major cause of seasonal and pandemic flu. Currently, oseltamivir, a potent and selective inhibitor of neuraminidase of influenza A and B viruses, is the drug of choice for treating patients with influenza virus infection. However, recent emergence of oseltamivir-resistant influenza viruses has limited its efficacy. Morin hydrate (3,5,7,2′,4′-pentahydroxyflavone) is a flavonoid isolated from Morus alba L. It has antioxidant, anti-inflammatory, neuroprotective, and anticancer effects partly by the inhibition of the NF-кB signaling pathway. However, its effects on influenza virus have not been studied. We evaluated the antiviral activity of morin hydrate against influenza A/Puerto Rico/8/1934 (A/PR/8; H1N1) and oseltamivir-resistant A/PR/8 influenza viruses in vitro. To determine its mode of action, we carried out time course experiments, and time of addition, hemolysis inhibition, and hemagglutination assays. The effects of the co-administration of morin hydrate and oseltamivir were assessed using the murine model of A/PR/8 infection. We found that morin hydrate reduced hemagglutination by A/PR/8 in vitro. It alleviated the symptoms of A/PR/8-infection, and reduced the levels of pro-inflammatory cytokines and chemokines, such as TNF-α and CCL2, in infected mice. Co-administration of morin hydrate and oseltamivir phosphate reduced the virus titers and attenuated pulmonary inflammation. Our results suggest that morin hydrate exhibits antiviral activity by inhibiting the entry of the virus.

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ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
RESULTS
DISCUSSION
REFERENCES

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