Inhibitory effects of quercetin on porcine epidemic diarrhea virus in vitro and in vivo

This study aimed to explore the therapeutic effects of quercetin in PEDV infections in vitro (Vero cells) and in vivo (suckling piglets). Using transmission electron microscopy and laser confocal microscopy, we found that PEDV infection promotes the accumulation of lipid droplets (LDs). In vitro, studies showed that quercetin inhibits LD accumulation by down-regulating NF-κB signaling and IL-1β, IL-8, and IL-6 levels, thereby inhibiting viral replication. In vivo, studies in pigs demonstrated that quercetin can effectively relieve the clinical symptoms and intestinal injury caused by PEDV. Collectively, our findings suggest that quercetin inhibits PEDV replication both in vivo and in vitro, which provides a new direction for the development of PED antiviral drugs.PMID:37977082 | DOI:10.1016/j.virol.2023.109923

Source: Virology - November 17, 2023 Category: Virology Authors: Ting Gong Dongdong Wu Yongzhi Feng Xing Liu Qi Gao Xiaoyu Zheng Zebu Song Heng Wang Guihong Zhang Lang Gong Source Type: research