Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (9): 4213-4225.doi: 10.11843/j.issn.0366-6964.2024.09.045

• Clinical Veterinary Medicine • Previous Articles     Next Articles

Inhibitory Effect of Resveratrol on Rotavirus-infected Porcine Intestinal Epithelial Cells IPEC-J2

Ning PENG(), Yaxu LIANG, Fei LONG, Dongming YU, Xiang ZHONG*()   

  1. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
  • Received:2023-10-24 Online:2024-09-23 Published:2024-09-27
  • Contact: Xiang ZHONG E-mail:pn17111254@163.com;zhongxiang@njau.edu.cn

Abstract:

The aim of this study was to investigate the antiviral effect of resveratrol on porcine rotavirus (PoRV) infected porcine intestinal epithelial cells(IPEC-J2). In this experiment, IPEC-J2 cells were used as research object. Firstly, the effect of different concentration of resveratrol on the cell viability of IPEC-J2 was determined. Then experimental groups including negative control group, PoRV-infected group and PoRV-infected group with the addition of resveratrol at different time points were set up depending on whether the IPEC-J2 cells were treated with PoRV or resveratrol (100 μmol·L-1). The replication and proliferation of PoRV in IPEC-J2 cells were detected by real-time fluorescence quantitative PCR, viral titer assay and Western blot. The results showed that: 1) The addition of resveratrol (100 μmol·L-1) significantly inhibited PoRV replication and infection at the late and full phases of viral infection of PoRV infection with IPEC-J2 (P < 0.05); 2) Compared with the PoRV-infected group, the addition of resveratrol (100 μmol·L-1) during the full phase of PoRV-infected IPEC-J2 extremely significantly suppressed the levels of inflammatory cytokines IL-1β, IL-10, TNF-α and IFN-β in the supernatant fluid of IPEC-J2 cells (P < 0.01), while significantly suppressed the IL-10 and IFN-β levels during the late phase (P < 0.05); Extremely significantly suppressed the relative expression of immune-related factors MDA5, RIG-I, TRIF, MAVS, LGALS9, EIF2AK2, IRF9 and IFI44L in IPEC-J2 cells (P < 0.01) during late and full phases; Extremely significantly suppressed the relative mRNA expression of variable splicing factors SRPK1, SRPK2, HNRNPC and HNRNPR in IPEC-J2 cells (P < 0.01) during late and full phases; 3) Compared with the negative control group, PoRV infection significantly promoted exon jumps in exon 5 of LGALS9 and exon 2 of EF2AK2 in IPEC-J2 cells, while the addition of resveratrol (100 μmol·L-1) significantly inhibited the exon skipping of target genes in the late and full phases of PoRV infection IPEC-J2 cells. In conclusion, this study confirmed that the addition of 100 μmol·L-1 resveratrol could inhibit the infection and replication of PoRV in IPEC-J2 cells and play a role in the late phases of PoRV replication, which can provide a new basis and reference for the prevention and treatment of viral diarrhea in piglets.

Key words: resveratrol, porcine rotavirus, antiviral, alternative splicing

CLC Number: