PMID- 30046953 OWN - NLM STAT- MEDLINE DCOM- 20181127 LR - 20200324 IS - 1476-5535 (Electronic) IS - 1367-5435 (Print) IS - 1367-5435 (Linking) VI - 45 IP - 10 DP - 2018 Oct TI - Surface-displayed porcine reproductive and respiratory syndrome virus from cell culture onto gram-positive enhancer matrix particles. PG - 889-898 LID - 10.1007/s10295-018-2061-1 [doi] AB - Vaccine immunization is now one of the most effective ways to control porcine reproductive and respiratory syndrome virus (PRRSV) infection. Impurity is one of the main factors affecting vaccine safety and efficacy. Here we present a novel innovative PRRSV purification approach based on surface display technology. First, a bifunctional protein PA-GRFT (protein anchor-griffithsin), the crucial factor in the purification process, was successfully produced in Escherichia coli yielding 80 mg/L of broth culture. Then PRRSV purification was performed by incubation of PA-GRFT with PRRSV and gram-positive enhancer matrix (GEM) particles, followed by centrifugation to collect virions loaded onto GEM particles. Our results showed that most of the bulk impurities had been removed, and PA-GRFT could capture PRRSV onto GEM particles. Our lactic acid bacteria-based purification method, which is promising as ease of operation, low cost and easy to scale-up, may represent a candidate method for the large-scale purification of this virus for vaccine production. FAU - Li, Lan AU - Li L AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. FAU - Qiao, Xuwen AU - Qiao X AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. FAU - Chen, Jin AU - Chen J AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. FAU - Zhang, Yuanpeng AU - Zhang Y AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. FAU - Zheng, Qisheng AU - Zheng Q AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. njcvc1302@163.com. FAU - Hou, Jibo AU - Hou J AD - National Research, Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, Jiangsu, China. houjiboccvv@163.com. AD - Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, 225009, Jiangsu, China. houjiboccvv@163.com. LA - eng GR - 201303046/the Special Fund for Agro-scientific Research in the Public Interest/ GR - cx (14)2089/the Independent Innovation of Agricultural Sciences Program of Jiangsu Province/ PT - Journal Article DEP - 20180725 PL - Germany TA - J Ind Microbiol Biotechnol JT - Journal of industrial microbiology & biotechnology JID - 9705544 RN - 0 (Lectins) RN - 0 (Vaccines) RN - 0 (Viral Vaccines) RN - 9007-49-2 (DNA) SB - IM MH - Animals MH - Cells, Cultured MH - DNA/analysis MH - Dose-Response Relationship, Drug MH - Escherichia coli/metabolism MH - Genetic Engineering MH - Immunization MH - Lactobacillales/chemistry MH - Lectins MH - Microscopy, Fluorescence MH - Porcine Reproductive and Respiratory Syndrome/prevention & control MH - *Porcine respiratory and reproductive syndrome virus MH - Surface Properties MH - Swine MH - Temperature MH - Vaccines/chemistry MH - Viral Vaccines/*immunology MH - *Virus Cultivation PMC - PMC7088258 OTO - NOTNLM OT - GEM particles OT - Griffithsin OT - Lactic acid bacteria OT - PRRSV OT - Purification COIS- There is no conflict of interests. EDAT- 2018/07/27 06:00 MHDA- 2018/11/28 06:00 PMCR- 2020/03/23 CRDT- 2018/07/27 06:00 PHST- 2018/01/25 00:00 [received] PHST- 2018/07/13 00:00 [accepted] PHST- 2018/07/27 06:00 [pubmed] PHST- 2018/11/28 06:00 [medline] PHST- 2018/07/27 06:00 [entrez] PHST- 2020/03/23 00:00 [pmc-release] AID - 10.1007/s10295-018-2061-1 [pii] AID - 2061 [pii] AID - 10.1007/s10295-018-2061-1 [doi] PST - ppublish SO - J Ind Microbiol Biotechnol. 2018 Oct;45(10):889-898. doi: 10.1007/s10295-018-2061-1. Epub 2018 Jul 25.