PMID- 36275018 OWN - NLM STAT- MEDLINE DCOM- 20221025 LR - 20221222 IS - 2235-2988 (Electronic) IS - 2235-2988 (Linking) VI - 12 DP - 2022 TI - Immunological evaluation of recombination PRRSV GP3 and GP5 DNA vaccines in vivo. PG - 1016897 LID - 10.3389/fcimb.2022.1016897 [doi] LID - 1016897 AB - The porcine reproductive and respiratory syndrome virus (PRRSV) is a threat to the health of pigs worldwide, but commercially available vaccines offer limited protection against PRRSV infection. It is necessary to develop a more effective DNA vaccine. The immunological effects of DNA vaccines with three adjuvants were examined in pigs (Susscrofa domestica) challenged with PRRSV. These DNA vaccines, which encoded PRRSV GP3 and GP5, were formulated with A1, A2, and A3. Serum specific and neutralizing antibodies, IL-4, IFN-gamma, IL-2, IL-10, CD4(+) and CD8(+)T-lymphocytes, health status, histopathology, and viral loads were determined. The results showed that the use of adjuvant A3 led to higher levels of neutralizing antibodies and a lower viral load in pigs compared to the other adjuvants. The neutralizing antibody titers of the pVAX-GP35+A1 and pVAX-GP35+A3 groups reached a peak of 1:19 at 35 dpi. The maximum concentration of IL-4 was 136.77 pg/mL in the pVAX-GP35+A3 group. At 35 dpi, the IFN-gamma concentration in the pVAX-GP35+A1 group was 227.4 pg/mL. pVAX-GP35+A3 group shows the highest IL-2 and IL-10 expression to the peak of 597.6 pg/mL and 189.1 pg/mL, respectively. We found a formulation demonstrated beneficial immune outcomes. This study provides an alternative vaccine to protect pigs from PRRSV. CI - Copyright (c) 2022 Zhao, Zhang, Sun, Xie, Zhang, Gao, Wen, Ha, Nan, Zhu, Feng, Cao, Zhang, Zhu, Jin and Lu. FAU - Zhao, Guanyu AU - Zhao G AD - College of Veterinary Medicine, College of Animal Science, Jilin University, Changchun, China. FAU - Zhang, Jiaqi AU - Zhang J AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Sun, Wenchao AU - Sun W AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Xie, Changzhan AU - Xie C AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Zhang, He AU - Zhang H AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Gao, Yan AU - Gao Y AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Wen, Shubo AU - Wen S AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Ha, Zhuo AU - Ha Z AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Nan, Fulong AU - Nan F AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Zhu, Xiangyu AU - Zhu X AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Feng, Sheng AU - Feng S AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Cao, Xinyu AU - Cao X AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Zhang, Ying AU - Zhang Y AD - College of Veterinary Medicine, College of Animal Science, Jilin University, Changchun, China. FAU - Zhu, Yanzhu AU - Zhu Y AD - Institute of Special Animal and Plant Sciences, Chinese Academy of Agricultural Sciences, Changchun, China. AD - Animal Science and Technology College, Jilin Agriculture Science and Technology University, Jilin, China. FAU - Jin, Ningyi AU - Jin N AD - College of Veterinary Medicine, College of Animal Science, Jilin University, Changchun, China. AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. FAU - Lu, Huijun AU - Lu H AD - Changchun Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Changchun, China. LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20221006 PL - Switzerland TA - Front Cell Infect Microbiol JT - Frontiers in cellular and infection microbiology JID - 101585359 RN - 0 (Vaccines, DNA) RN - 130068-27-8 (Interleukin-10) RN - 207137-56-2 (Interleukin-4) RN - 0 (Interleukin-2) RN - 0 (Antibodies, Viral) RN - 0 (Antibodies, Neutralizing) RN - 0 (Adjuvants, Immunologic) RN - 0 (Viral Vaccines) SB - IM MH - Swine MH - Animals MH - *Porcine respiratory and reproductive syndrome virus/genetics MH - *Vaccines, DNA MH - *Porcine Reproductive and Respiratory Syndrome/prevention & control MH - Interleukin-10/genetics MH - Interleukin-4 MH - Interleukin-2/genetics MH - Antibodies, Viral MH - Antibodies, Neutralizing MH - Adjuvants, Immunologic/pharmacology MH - Recombination, Genetic MH - *Viral Vaccines/genetics PMC - PMC9582230 OTO - NOTNLM OT - DNA vaccine OT - GP3 OT - GP5 OT - PRRSV OT - immune response OT - pig COIS- The authors state that there were no commercial or financial relationships that may be considered as a potential conflict of interest during the research. EDAT- 2022/10/25 06:00 MHDA- 2022/10/26 06:00 PMCR- 2022/01/01 CRDT- 2022/10/24 03:51 PHST- 2022/08/11 00:00 [received] PHST- 2022/09/05 00:00 [accepted] PHST- 2022/10/24 03:51 [entrez] PHST- 2022/10/25 06:00 [pubmed] PHST- 2022/10/26 06:00 [medline] PHST- 2022/01/01 00:00 [pmc-release] AID - 10.3389/fcimb.2022.1016897 [doi] PST - epublish SO - Front Cell Infect Microbiol. 2022 Oct 6;12:1016897. doi: 10.3389/fcimb.2022.1016897. eCollection 2022.