PMID- 32278861 OWN - NLM STAT- MEDLINE DCOM- 20210830 LR - 20210830 IS - 1879-0089 (Electronic) IS - 0145-305X (Linking) VI - 109 DP - 2020 Aug TI - Activation of Fc gamma receptor IIb up-regulates the production of interferon-alpha and interferon-gamma in porcine alveolar macrophages during PRRSV infection. PG - 103696 LID - S0145-305X(20)30098-7 [pii] LID - 10.1016/j.dci.2020.103696 [doi] AB - Porcine Fc gamma receptor IIb (FcgammaRIIb) has been cloned and characterized for many years. However, the role of FcgammaRIIb in innate antiviral response to porcine reproductive and respiratory syndrome virus (PRRSV) infection has not yet been well investigated. In current study, our results showed that specific activation of FcgammaRIIb in porcine alveolar macrophages (PAMs) significantly enhanced the production of interferon-alpha (IFN-alpha) and interferon-gamma (IFN-gamma), and significantly repressed the production of transforming growth factor beta 1 (TGF-beta1). In addition, our results showed that specific activation of FcgammaRIIb in PAMs cells in PRRSV infection not only significantly increased the production of IFN-alpha and IFN-gamma, but also significantly decreased the production of TGF-beta1, and significantly inhibited PRRSV replication level. In summary, our studies indicated that FcgammaRIIb signaling up-regulated the production of IFN-alpha and IFN-gamma in PAMs cells in vitro, in response to PRRSV infection. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Zhang, Liujun AU - Zhang L AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Xia, Yuhao AU - Xia Y AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Li, Wen AU - Li W AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Sun, Yangyang AU - Sun Y AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Kong, Linghao AU - Kong L AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Xu, Pengli AU - Xu P AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. FAU - Xia, Pingan AU - Xia P AD - College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, 450002, China. Electronic address: xpa88@163.com. FAU - Yue, Junming AU - Yue J AD - Department of Pathology and Laboratory Medicine, University of Tennessee Health Science Center, Memphis, TN, 38163, USA; Center for Cancer Research, University of Tennessee Health Science Center, Memphis, TN, 38163, USA. Electronic address: jyue@uthsc.edu. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20200409 PL - United States TA - Dev Comp Immunol JT - Developmental and comparative immunology JID - 7708205 RN - 0 (Fc gamma receptor IIB) RN - 0 (Interferon-alpha) RN - 0 (Receptors, IgG) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Cells, Cultured MH - Gene Expression Regulation/immunology MH - Host-Pathogen Interactions/immunology MH - Interferon-alpha/genetics/*immunology/metabolism MH - Interferon-gamma/genetics/*immunology/metabolism MH - Macrophages, Alveolar/*immunology/metabolism/virology MH - Porcine respiratory and reproductive syndrome virus/*immunology/physiology MH - Receptors, IgG/*immunology/metabolism MH - Reverse Transcriptase Polymerase Chain Reaction MH - Swine OTO - NOTNLM OT - FcgammaRIIb OT - IFN-alpha OT - IFN-gamma OT - PRRSV OT - TGF-beta1 COIS- Declaration of competing interest The authors declare that they have no competing interests. EDAT- 2020/04/13 06:00 MHDA- 2021/08/31 06:00 CRDT- 2020/04/13 06:00 PHST- 2020/02/22 00:00 [received] PHST- 2020/04/02 00:00 [revised] PHST- 2020/04/02 00:00 [accepted] PHST- 2020/04/13 06:00 [pubmed] PHST- 2021/08/31 06:00 [medline] PHST- 2020/04/13 06:00 [entrez] AID - S0145-305X(20)30098-7 [pii] AID - 10.1016/j.dci.2020.103696 [doi] PST - ppublish SO - Dev Comp Immunol. 2020 Aug;109:103696. doi: 10.1016/j.dci.2020.103696. Epub 2020 Apr 9.