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Functional analysis of prv-miR-LLT11a encoded by pseudorabies virus
Huimin Liu,Li Yang,Zhibin Shi,Ruiqi Lv,Xia Yang,Chuanqing Wang,Lu Chen,Hongtao Chang 대한수의학회 2019 Journal of Veterinary Science Vol.20 No.6
Viral-encoded microRNAs (miRNAs) play have vital roles in the regulations of virus replications and host immune responses. The results of previous studies have indicated that miRNA clusters are involved in the replication and virulence of the pseudorabies virus (PRV), which may potentially lead to the immune escape or facilitation of PRV replications. This study's previous research revealed that the prv-mirmiR-LLT11a was differentially expressed during PRV infections. The present study's results have demonstrated that the prv-miR-LLT11a could significantly inhibit PRV replications. It was further determined that SLA-1 was the target gene of the prv-miR-LLT11a, and simultaneously, thate overexpression of prv-miR-LLT11a could down-regulate the mRNA and protein levels of SLA-1 in a dose-independent manner. Furthermore, the present study also found observed that the prv-miR-LLT11a canhad also down-regulated the TAP1 expressions. Our findings provide a better understanding of the molecular mechanism involved in on the effects of prv-miR-LLT11a on SLA-1 and TAP1, as well as and its involvement in a potential immune system evasion of PRV.