PMID- 28138774 OWN - NLM STAT- MEDLINE DCOM- 20170428 LR - 20181202 IS - 1432-8798 (Electronic) IS - 0304-8608 (Linking) VI - 162 IP - 5 DP - 2017 May TI - Effect of porcine circovirus type 2 (PCV2) on the function of splenic CD11c(+) dendritic cells in mice. PG - 1289-1298 LID - 10.1007/s00705-017-3221-8 [doi] AB - Porcine circovirus-associated disease (PCVAD) caused by porcine circovirus type 2 (PCV2) is an important disease in the global pig industry. Dendritic cells (DCs) are the primary immune cells capable of initiating adaptive immune responses as well as major target cells of PCV2. To determine whether PCV2 affects the immune functions of DCs, we evaluated the expression of endocytosis and co-stimulatory molecules on DCs (CD11c(+)) from PCV2-infected mouse spleen by flow cytometry (FCM). We also analyzed the main cytokines secreted by DCs (CD11c(+)) and activation of CD4(+) and CD8(+) T cells by DCs (CD11c(+)) through measurement of cytokine secretion, using ELISA. Compared with control mice, PCV2 did not affect the endocytic activity of DCs but it significantly enhanced TNF-alpha secretion and markedly decreased IFN-alpha secretion. Subsets of CD40(+), MHCII(+) CD40(+) and CD137L(+) CD86(+) DCs did not increase obviously, but MHCII(+) CD40(-) and CD137L(-) CD80(+)/CD86(+) DCs increased significantly in PCV2-infected mouse spleen. Under the stimulation of DCs from PCV2-infected mouse, secretion of IFN-gamma by CD4(+) and CD8(+) T cells and of IL-12 by CD8(+) T cells was significantly lower than in control mice, while secretion of IL-4 by CD4(+) T cells was remarkably higher. These results indicate that PCV2 modulates cytokine secretion and co-stimulatory molecule expression of DCs, and alters activation of CD4(+) and CD8(+) T cells by DCs. The immunomodulatory effects of PCV2 on DCs might be related to the host's immune dysfunction and persistent infection with this virus. FAU - Wang, Xiaobo AU - Wang X AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Chen, Ligong AU - Chen L AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Yuan, Wanzhe AU - Yuan W AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Li, Yanqin AU - Li Y AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Li, Limin AU - Li L AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Li, Tanqing AU - Li T AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. FAU - Li, Huanrong AU - Li H AD - College of Animal Science and Technology, Beijing University of Agriculture, No. 7 Beinong Road, Changping District, Beijing, 102206, China. lihuanrong1@126.com. FAU - Song, Qinye AU - Song Q AD - College of Veterinary Medicine, Hebei Agricultural University, No. 2596 Lekai Southern Street, Baoding, 071000, Hebei, China. songqinye@126.com. LA - eng PT - Journal Article DEP - 20170130 PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (CD11c Antigen) RN - 0 (Il12a protein, mouse) RN - 0 (Interferon-alpha) RN - 0 (Interleukin-12 Subunit p35) RN - 0 (Tumor Necrosis Factor-alpha) RN - 207137-56-2 (Interleukin-4) SB - IM MH - Animals MH - CD11c Antigen/*immunology MH - CD4-Positive T-Lymphocytes/immunology MH - CD8-Positive T-Lymphocytes/immunology MH - Circovirus/*immunology MH - Dendritic Cells/*immunology MH - Endocytosis/*immunology MH - Female MH - Interferon-alpha/metabolism MH - Interleukin-12 Subunit p35/metabolism MH - Interleukin-4/metabolism MH - Lymphocyte Activation/immunology MH - Mice MH - Mice, Inbred BALB C MH - Spleen/*cytology/immunology MH - Swine/virology MH - Swine Diseases/virology MH - Tumor Necrosis Factor-alpha/metabolism EDAT- 2017/02/01 06:00 MHDA- 2017/04/30 06:00 CRDT- 2017/02/01 06:00 PHST- 2016/08/03 00:00 [received] PHST- 2017/01/09 00:00 [accepted] PHST- 2017/02/01 06:00 [pubmed] PHST- 2017/04/30 06:00 [medline] PHST- 2017/02/01 06:00 [entrez] AID - 10.1007/s00705-017-3221-8 [pii] AID - 10.1007/s00705-017-3221-8 [doi] PST - ppublish SO - Arch Virol. 2017 May;162(5):1289-1298. doi: 10.1007/s00705-017-3221-8. Epub 2017 Jan 30.