PMID- 24965453 OWN - NLM STAT- MEDLINE DCOM- 20150122 LR - 20211021 IS - 1098-5514 (Electronic) IS - 0022-538X (Print) IS - 0022-538X (Linking) VI - 88 IP - 18 DP - 2014 Sep TI - Modulation of CD163 expression by metalloprotease ADAM17 regulates porcine reproductive and respiratory syndrome virus entry. PG - 10448-58 LID - 10.1128/JVI.01117-14 [doi] AB - As a consequence of their effects on ectodomain shedding, members of the A disintegrin and metalloprotease (ADAM) family have been implicated in the control of various cellular processes. Although ADAM family members are also involved in cancer, inflammation, and other pathologies, it is unclear whether they affect porcine reproductive and respiratory syndrome virus (PRRSV) infection. Here, we demonstrate for the first time that inhibition of ADAM17 enhances PRRSV entry in Marc-145 and porcine alveolar macrophages (PAMs). We also demonstrate that the inhibition of ADAM17 upregulates membrane CD163 expression, a putative PRRSV receptor that is exogenously expressed in BHK-21 and endogenously expressed in Marc-145 and PAMs. Furthermore, overexpression of ADAM17 induced downregulation of CD163 expression and a reduction in PRRSV infection, whereas ablation of ADAM17 expression using specific small interfering RNA resulted in upregulation of CD163 expression with a corresponding increase in PRRSV infection. These ADAM17-mediated effects were confirmed with PRRSV nonpermissive BHK-21 cells transfected with CD163 cDNA. Overall, these findings indicate that ADAM17 downregulates CD163 expression and hinders PRRSV entry. Hence, downregulation of ADAM17 particular substrates may be an additional component of the anti-infection defenses. IMPORTANCE: ADAM17 is one of the important membrane-associated metalloproteases that mediate various cellular events, as well as inflammation, cancer, and other pathologies. Here, we investigate for the first time the role of the metalloprotease ADAM17 in PRRSV infection. By using inhibitor and genetic modification methods, we demonstrate that ADAM17 negatively regulate PRRSV entry by regulating its substrate(s). More specifically, ADAM 17 mediates the downregulation of the PRRSV cellular receptor CD163. The reduction in CD163 expression represents another component of the anti-infection response initiated by ADAM17. CI - Copyright (c) 2014, American Society for Microbiology. All Rights Reserved. FAU - Guo, Longjun AU - Guo L AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Niu, Junwei AU - Niu J AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Yu, Haidong AU - Yu H AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Gu, Weihong AU - Gu W AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Li, Ren AU - Li R AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Luo, Xiaolei AU - Luo X AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Huang, Mingming AU - Huang M AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Tian, Zhijun AU - Tian Z AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Feng, Li AU - Feng L AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China. FAU - Wang, Yue AU - Wang Y AD - State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, China wangyue@hvri.ac.cn. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140625 PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 0 (Antigens, CD) RN - 0 (Antigens, Differentiation, Myelomonocytic) RN - 0 (CD163 antigen) RN - 0 (Receptors, Cell Surface) RN - 0 (Receptors, Virus) RN - EC 3.4.24.- (ADAM Proteins) RN - EC 3.4.24.86 (ADAM17 Protein) SB - IM EIN - J Virol. 2016 May 12;90(11):5532. PMID: 27174637 MH - ADAM Proteins/genetics/*metabolism MH - ADAM17 Protein MH - Animals MH - Antigens, CD/*genetics/metabolism MH - Antigens, Differentiation, Myelomonocytic/*genetics/metabolism MH - Cell Line MH - Porcine Reproductive and Respiratory Syndrome/enzymology/*genetics/metabolism/virology MH - Porcine respiratory and reproductive syndrome virus/*physiology MH - Receptors, Cell Surface/*genetics/metabolism MH - Receptors, Virus/genetics/metabolism MH - Swine MH - *Virus Internalization PMC - PMC4178901 EDAT- 2014/06/27 06:00 MHDA- 2015/01/23 06:00 PMCR- 2015/03/01 CRDT- 2014/06/27 06:00 PHST- 2014/06/27 06:00 [entrez] PHST- 2014/06/27 06:00 [pubmed] PHST- 2015/01/23 06:00 [medline] PHST- 2015/03/01 00:00 [pmc-release] AID - JVI.01117-14 [pii] AID - 01117-14 [pii] AID - 10.1128/JVI.01117-14 [doi] PST - ppublish SO - J Virol. 2014 Sep;88(18):10448-58. doi: 10.1128/JVI.01117-14. Epub 2014 Jun 25.