Porcine antiviral activity is increased by CRISPRa-SAM system
文献类型: 外文期刊
第一作者: Jiang, Jinhe
作者: Jiang, Jinhe;Sun, Yumei;Wai, Kai;Ahmad, Muhammad Jamil;Zhang, Shujun;Xiao, Rong;Zhou, Hongbo;Khan, Faheem Ahmed;Li, Zhiyong;Zhang, Yong;Zhou, Ao;Zhou, Ao
作者机构:
期刊名称:BIOSCIENCE REPORTS ( 影响因子:3.84; 五年影响因子:4.059 )
ISSN: 0144-8463
年卷期: 2019 年 39 卷
页码:
收录情况: SCI
摘要: Clustered Regularly Interspaced Short Palindromic Repeat activation-synergistic activation mediator system (CRISPRa-SAM) has been efficiently used to up-regulate the targeted genes in human and mouse. But it is not known whether the CRISPRa-SAM system can be used against porcine disease because its two important transcriptional activation domains (P65 and heat shock transcription factor 1 (HSF1)) are from mouse and human, respectively. Pig is one of the most important meat sources, porcine viral infectious diseases cause massive economic losses to the swine industry and threaten the public health. We aimed to investigate whether the CRISPRa-SAM system could increase porcine antiviral activity by mediating two pig-specific target genes (Mx2 and beta 1,4 N-acetylgalactosaminyltransferase (B4galnt2)). First, we constructed PK-15 and IPEC-J2 cell lines expressing nuclease-deficient Cas9 (dCas9)-vp64 and MS2-P65-HSF1 stably. Next, in these two cell models, we activated Mx2 and B4galnt2 expression through CRISPRa-SAM system. Antiviral activity to PRV or H9N2 was improved in PK-15 cells where Mx2 or B4galnt2 was activated. Altogether, our results demonstrated the potential of CRISPRa-SAM system as a powerful tool for activating pig genes and improving porcine antiviral activity.
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