PMID- 26398903 OWN - NLM STAT- MEDLINE DCOM- 20160419 LR - 20220321 IS - 1557-7430 (Electronic) IS - 1044-5498 (Linking) VI - 34 IP - 12 DP - 2015 Dec TI - The Endoribonuclease Activity Essential for the Nonstructural Protein 11 of Porcine Reproductive and Respiratory Syndrome Virus to Inhibit NLRP3 Inflammasome-Mediated IL-1beta Induction. PG - 728-35 LID - 10.1089/dna.2015.2929 [doi] AB - NLRP3 inflammasome, which is multiprotein complex that induces the maturity and secretion of proinflammatory interleukin-1beta (IL-1beta), takes a bridge between the innate and adaptive immune responses to the invading pathogens. It has been shown that porcine reproductive and respiratory syndrome virus (PRRSV) could activate the NLRP3 inflammasome but induce the host's immunosuppression. This study aims to explore whether PRRSV could encode the component to antagonize the NLRP3 inflammasome. The obtained results showed that PRRSV could induce the expression and secretion of IL-1beta in early infection through the pathway of NLRP3 inflammasome in porcine alveolar macrophages (PAMs), but the levels of pro-IL-1beta mRNA and IL-1beta protein decreased to a degree that was similar to the level of the mock-infected group in later infection. This work also found that PRRSV nonstructural protein (nsp) 11 could inhibit the expression of pro-IL-1beta mRNA induced by lipopolysaccharide (LPS) and the secretion of IL-1beta induced by LPS plus nigericin in PAMs. Furthermore, the mutation studies showed that the endoribonuclease activity was essential for nsp11 to inhibit the secretion of IL-1beta. Therefore, it could be indicated that PRRSV could induce the activation of NLRP3 inflammasome, but the virus encoded nsp11 to inhibit this action. FAU - Wang, Chao AU - Wang C AD - 1 College of Veterinary Medicine, Northwest A&F University , Yangling, China . AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . FAU - Shi, Xibao AU - Shi X AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . AD - 3 College of Life Sciences, Henan Normal University , Xinxiang, China . FAU - Zhang, Xiaozhuan AU - Zhang X AD - 3 College of Life Sciences, Henan Normal University , Xinxiang, China . FAU - Wang, Aiping AU - Wang A AD - 4 Department of Bioengineering, Zhengzhou University , Zhengzhou, China . FAU - Wang, Li AU - Wang L AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . FAU - Chen, Jing AU - Chen J AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . FAU - Deng, Ruiguang AU - Deng R AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . FAU - Zhang, Gaiping AU - Zhang G AD - 1 College of Veterinary Medicine, Northwest A&F University , Yangling, China . AD - 2 Henan Provincial Key Laboratory of Animal Immunology , Henan Academy of Agricultural Sciences, Zhengzhou, China . AD - 5 College of Animal Science and Veterinary Medicine, Henan Agricultural University , Zhengzhou, China . LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20150923 PL - United States TA - DNA Cell Biol JT - DNA and cell biology JID - 9004522 RN - 0 (Carrier Proteins) RN - 0 (Inflammasomes) RN - 0 (Interleukin-1beta) RN - 0 (NLR Family, Pyrin Domain-Containing 3 Protein) RN - 0 (NLRP3 protein, human) RN - 0 (RNA, Messenger) RN - 0 (Viral Nonstructural Proteins) RN - EC 3.1.- (Endoribonucleases) SB - IM MH - Animals MH - Arterivirus/metabolism/*physiology MH - Carrier Proteins/*metabolism MH - Endoribonucleases/*metabolism MH - Inflammasomes/*metabolism MH - Interleukin-1beta/*biosynthesis/genetics MH - NLR Family, Pyrin Domain-Containing 3 Protein MH - Porcine Reproductive and Respiratory Syndrome/*virology MH - RNA, Messenger/genetics MH - Swine MH - Viral Nonstructural Proteins/*metabolism EDAT- 2015/09/24 06:00 MHDA- 2016/04/20 06:00 CRDT- 2015/09/24 06:00 PHST- 2015/09/24 06:00 [entrez] PHST- 2015/09/24 06:00 [pubmed] PHST- 2016/04/20 06:00 [medline] AID - 10.1089/dna.2015.2929 [doi] PST - ppublish SO - DNA Cell Biol. 2015 Dec;34(12):728-35. doi: 10.1089/dna.2015.2929. Epub 2015 Sep 23.