

Acta Veterinaria et Zootechnica Sinica ›› 2025, Vol. 56 ›› Issue (9): 4593-4603.doi: 10.11843/j.issn.0366-6964.2025.09.037
• Preventive Veterinary Medicine • Previous Articles Next Articles
					
													WANG Ziyi1,2,3(
), RU Yi1,2, LU Bingzhou1,2, YANG Yang1,2, ZHAO Longhe1,2, LI Yajun1,2, LI Jianbin1,2, LI Minggui1,2, MA Kun1,2, LENG Feifan3, HAO Rongzeng1,2,*(
), ZHENG Haixue1,2,3,*(
)
												  
						
						
						
					
				
Received:2024-12-12
															
							
															
							
															
							
																	Online:2025-09-23
															
							
																	Published:2025-09-30
															
						Contact:
								HAO Rongzeng, ZHENG Haixue   
																	E-mail:215391193@qq.com;haorongzeng@163.com;zhenghaixue@caas.cn
																					CLC Number:
WANG Ziyi, RU Yi, LU Bingzhou, YANG Yang, ZHAO Longhe, LI Yajun, LI Jianbin, LI Minggui, MA Kun, LENG Feifan, HAO Rongzeng, ZHENG Haixue. Prolyl Oligopeptidase Promotes the Replication of Foot and Mouth Disease Virus in PK15 Cells[J]. Acta Veterinaria et Zootechnica Sinica, 2025, 56(9): 4593-4603.
Table 1
Sequences of primer and siRNA used in this study"
| 引物名称 Primer names  |  正向序列(5′→3′) Sense  |  反向序列(5′→3′) Antisense  |  
| POP | GAATTCTACCCATACGATGTTCCAGATTACGCT CTGTCCTTCCAGTACCCCGA  |  GGTACCACATCGACTGGATTCCGTAA | 
| FMDV-SYBR | TGGGACCATACAGGAGAAGT | GTAGCTTGGAATCTCGAAGAGG | 
| SusGAPDH | ACTGAGGACCAGGTTGTGT | AGGAAATGAGCTTGACGAAGTG | 
| POPsiRNA-112 | GGAUUAUCAUGGACAUAAATT | UUUAUGUCCAUGAUAAUCCTT | 
| POPsiRNA-563 | CUUGAAAGAGUCAAGUUCATT | UGAACUUGACUCUUUCAAGTT | 
| POPsiRNA-1404 | CAAAGAUCCCCAUGUUCAUTT | AUGAACAUGGGGAUCUUUGTT | 
| NC-siRNA | UUCUCCGAACGUGUCACGUTT | ACGUGACACGUUCGGAGAATT | 
Fig. 1
Impact of FMDV infection on POP expression in PK15 Cells A. Detection of POP protein expression in PK15 cells after FMDV infection by Western blot; B. Quantification of POP mRNA expression in PK15 cells after FMDV infection using RT-qPCR; C. Quantification of FMDV mRNA level in PK15 cells after FMDV infection using RT-qPCR. ns. P>0.05; **. P < 0.01; ***. P < 0.001"
														Fig. 3
Enhancement of FMDV replication in PK15 cells by overexpression of POP protein A. Dose-dependent effect of POP overexpression on the expression level of FMDV VP1 protein detected by Western blot; B. Detection of viral titers infected with FMDV after POP protein overexpression in PK15 cells; C. Quantification of FMDV mRNA level after overexpression of POP protein in PK15 cells using RT-qPCR. ns. P>0.05; *.P < 0.05; ***. P < 0.001"
														Fig. 4
The effect of POP overexpression on FMDV replication at different time points A. Detection of FMDV VP1 protein expression levels by Western blot after POP overexpression in PK15 cells; B. Detection of viral titers infected with FMDV after POP protein overexpression in PK15 cells in different timepoint; C. Quantification of FMDV mRNA level after overexpression of POP protein in PK15 cells using RT-qPCR. ns. P>0.05; ***. P < 0.001"
														Fig. 6
Effect of interfering with POP endogenous expression on the replication of FMDV in PK15 cells A. Detection of FMDV VP1 protein expression by Western blot after transfected siRNA in PK15 cells; B. Detection of viral titers after POP knockdown expression in PK15 cells; C. Quantification of FMDV mRNA level after transfected siRNA in PK15 cells using RT-qPCR. ***. P < 0.001"
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