Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (7): 2307-2316.doi: 10.11843/j.issn.0366-6964.2022.07.027

• BASIC VETERINARY MEDICINE • Previous Articles     Next Articles

Effect of Histone Deacetylase Inhibitors on Peste Des Petits Ruminants Virus Replication

PAN Chunrong1,2, DENG Ruixue1,2, HU Linjie2, ZHU Xueliang2, SUN Yuefeng2, WANG Guirong1*, MENG Xuelian2*   

  1. 1. College of Veterinary Medicine, Gansu Agricultural University, Lanzhou 730070, China;
    2. State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
  • Received:2021-12-06 Online:2022-07-23 Published:2022-07-23

Abstract: The present study aimed to explore the effect of histone deacetylase(HDAC) inhibitors on peste des petits ruminants virus (PPRV) replication, and to determine the role of HDACs involved in the PPRV replication.The mRNA expression of HDACs (HDAC1-11) was examined by RT-qPCR assay in PPRV-infected Vero cells. To screen the inhibitors that affect PPRV replication, the expression level of N protein was evaluated in infected Vero cells by Western blot following treatment with the various inhibitors for different types of HDACs for 48 h. The selected inhibitors were used to treat PPRV-infected Vero cells, and the effects of inhibitors on PPRV N RNA, N protein and virus titer were further analyzed by RT-qPCR, Western blot and TCID50, respectively. The results showed that PPRV infection in Vero cells resulted in a significant increase of the mRNA expression level of HDAC2 (P<0.05). After treatment with SAHA, TMP269 and MGCD0103, the expression level of PPRV N protein was significantly reduced and negatively correlated with the doses of these inhibitors. SAHA, TMP269 and MGCD0103 also significantly reduced the expression level of PPRV N RNA (P<0.05, P<0.05, P<0.01) and virus titer (P<0.05, P<0.05, P<0.01), respectively. These results indicated that class IIa HDACs inhibitors and class I HDACs inhibitors significantly inhibited PPRV replication in Vero cells, suggesting that class I HDACs (HDAC1-3) and class IIa HDACs (HDAC4-5, HDAC7, HDAC9) may be involved in the regulation of PPRV infection.

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

CLC Number: