PMID- 32075688 OWN - NLM STAT- MEDLINE DCOM- 20200825 LR - 20210110 IS - 1297-9716 (Electronic) IS - 0928-4249 (Print) IS - 0928-4249 (Linking) VI - 51 IP - 1 DP - 2020 Feb 19 TI - Effect of polymorphisms in porcine guanylate-binding proteins on host resistance to PRRSV infection in experimentally challenged pigs. PG - 14 LID - 10.1186/s13567-020-00745-5 [doi] LID - 14 AB - Guanylate-binding proteins (GBP1 and GBP5) are known to be important for host resistance against porcine reproductive and respiratory syndrome virus (PRRSV) infection. In this study, the effects of polymorphisms in GBP1 (GBP1E2 and WUR) and GBP5 on host immune responses against PRRSV were investigated to elucidate the mechanisms governing increased resistance to this disease. Seventy-one pigs [pre-genotyped based on three SNP markers (GBP1E2, WUR, and GBP5)] were assigned to homozygous (n = 36) and heterozygous (n = 35) groups and challenged with the JA142 PRRSV strain. Another group of nineteen pigs was kept separately as a negative control group. Serum and peripheral blood mononuclear cells (PBMCs) were collected at 0, 3, 7, 14, 21 and 28 days post-challenge (dpc). Viremia and weight gain were measured in all pigs at each time point, and a flow cytometry analysis of PBMCs was performed to evaluate T cell activation. In addition, 15 pigs (5 pigs per homozygous, heterozygous and negative groups) were sacrificed at 3, 14 and 28 dpc, and the local T cell responses were evaluated in the lungs, bronchoalveolar lavage cells (BALc), lymph nodes and tonsils. The heterozygous pigs showed lower viral loads in the serum and lungs and higher weight gains than the homozygous pigs based on the area under the curve calculation. Consistently, compared with the homozygous pigs, the heterozygous pigs exhibited significantly higher levels of IFN-alpha in the serum, proliferation of various T cells (gammadeltaT, Th1, and Th17) in PBMCs and tissues, and cytotoxic T cells in the lungs and BALc. These results indicate that the higher resistance in the pigs heterozygous for the GBP1E2, WUR and GBP5 markers could be mediated by increased antiviral cytokine (IFN-alpha) production and T cell activation. FAU - Khatun, Amina AU - Khatun A AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. AD - Department of Pathology, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, 1207, Bangladesh. FAU - Nazki, Salik AU - Nazki S AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Jeong, Chang-Gi AU - Jeong CG AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Gu, Suna AU - Gu S AD - College of Environmental & Biosource Science, Division of Biotechnology, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Mattoo, Sameer Ul Salam AU - Mattoo SUS AD - College of Environmental & Biosource Science, Division of Biotechnology, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Lee, Sim-In AU - Lee SI AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Yang, Myun-Sik AU - Yang MS AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Lim, Byeonghwi AU - Lim B AD - College of Agriculture, Life & Environment Sciences, Department of Animal Science, Chungbuk National University, Cheongju, South Korea. FAU - Kim, Kwan-Suk AU - Kim KS AD - College of Agriculture, Life & Environment Sciences, Department of Animal Science, Chungbuk National University, Cheongju, South Korea. FAU - Kim, Bumseok AU - Kim B AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. FAU - Lee, Kyoung-Tae AU - Lee KT AD - National Institute of Animal Science, Rural Development Administration, Cheonan, South Korea. FAU - Park, Choi-Kyu AU - Park CK AD - College of Veterinary Medicine, Kyoungpook National University, Daegu, South Korea. FAU - Lee, Sang-Myeong AU - Lee SM AD - College of Environmental & Biosource Science, Division of Biotechnology, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. leesangm@jbnu.ac.kr. FAU - Kim, Won-Il AU - Kim WI AUID- ORCID: 0000-0002-0465-0794 AD - College of Veterinary Medicine, Jeonbuk National University, Iksan, Jeollabuk-do, 54596, South Korea. kwi0621@jbnu.ac.kr. LA - eng GR - 315029-3/The Ministry of Food, Agriculture, Forestry and Fisheries in the Republic of Korea/ GR - PJ01181601/The Rural Development Administration, the Republic of Korea/ PT - Journal Article DEP - 20200219 PL - England TA - Vet Res JT - Veterinary research JID - 9309551 RN - EC 3.6.1.- (GTP-Binding Proteins) SB - IM MH - Animals MH - *Disease Resistance MH - Female MH - GTP-Binding Proteins/*genetics/metabolism MH - Male MH - *Polymorphism, Genetic MH - Porcine Reproductive and Respiratory Syndrome/*virology MH - Porcine respiratory and reproductive syndrome virus/*genetics MH - Swine PMC - PMC7031929 COIS- The authors declare that they have no competing interests. EDAT- 2020/02/23 06:00 MHDA- 2020/08/26 06:00 PMCR- 2020/02/19 CRDT- 2020/02/21 06:00 PHST- 2019/09/04 00:00 [received] PHST- 2020/01/14 00:00 [accepted] PHST- 2020/02/21 06:00 [entrez] PHST- 2020/02/23 06:00 [pubmed] PHST- 2020/08/26 06:00 [medline] PHST- 2020/02/19 00:00 [pmc-release] AID - 10.1186/s13567-020-00745-5 [pii] AID - 745 [pii] AID - 10.1186/s13567-020-00745-5 [doi] PST - epublish SO - Vet Res. 2020 Feb 19;51(1):14. doi: 10.1186/s13567-020-00745-5.