Acta Veterinaria et Zootechnica Sinica ›› 2024, Vol. 55 ›› Issue (10): 4542-4552.doi: 10.11843/j.issn.0366-6964.2024.10.025

• Preventive Veterinary Medicine • Previous Articles     Next Articles

Suppressive Effect of Histone Deacetylase Inhibitor MGCD0103 on Peste Des Petits Rumants Virus Replication in vitro

Ruixue DENG1,2,3(), Chunrong PAN1,2,3, Xueliang ZHU2, Linjie HU2, Yuefeng SUN2, Qiaoying ZENG1,*(), Xuelian MENG2,*()   

  1. 1. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China
    2. State Key Laboratory for Animal Disease Control and Prevention, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
    3. China Agricultural Vet Biology and Technology Co., Ltd, Lanzhou 730046, China
  • Received:2023-12-11 Online:2024-10-23 Published:2024-11-04
  • Contact: Qiaoying ZENG, Xuelian MENG E-mail:drxd1@163.com;zengqy@gsau.edu.cn;mengxuelian@caas.cn

Abstract:

In this study, the effect of MGCD0103 (Mocetinostat), a selective HDACi, on the replication of peste des petits ruminants virus (PPRV) in goat endometrial epithelial cells (EEC cells) was investigated, aiming to clarify the role and activity of MGCD0103 in PPRV multiplication. The transcription levels of HDACs and PPRV N gene in different treated cells were determined by RT-qPCR, and the action stage of MGCD0103 in the viral proliferation cycle of PPRV was determined by the time of addition assay. The effect of MGCD0103 on the expression level of PPRV N protein and viral titer were further analyzed by Western blot and TCID50, respectively. The results showed that the mRNA expression levels of HDAC1 (P < 0.001) and HDAC2 (P < 0.002) were increased significantly in PPRV-infected EEC cells. Although MGCD0103 has an excellent inhibitory effect on PPRV multiplication, its inhibitory effect in the virus entry is limited. MGCD0103 significantly reduced the transcription and expression levels of PPRV N gene, as well as the viral titer (P < 0.002). The half-maximal effective concentration (EC50) and selectivity index (SI) of MGCD0103 against PPRV were 0.43 μmol·L-1 and 4.35, respectively. These results indicated that MGCD0103 significantly inhibited PPRV replication, which is of great significance for the development of anti-PPRV drugs and provides a new idea for constructing sensitive cell lines for PPRV proliferation.

Key words: histone deacetylase inhibitor, MGCD0103, inhibit, peste des petits ruminants virus, replication

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