PMID- 17980465 OWN - NLM STAT- MEDLINE DCOM- 20080225 LR - 20081121 IS - 0264-410X (Print) IS - 0264-410X (Linking) VI - 25 IP - 49 DP - 2007 Nov 28 TI - Construction and immunogenicity of pseudotype baculovirus expressing GP5 and M protein of porcine reproductive and respiratory syndrome virus. PG - 8220-7 AB - Baculovirus, which is extensively utilized as an excellent tool for production of recombinant protein in insect cells, has recently emerged as a novel and attractive gene delivery vehicle for mammalian cells. In the present study, a pseudotype baculovirus (with the glycoprotein of vesicular stomatitis virus (VSV-G) on the envelope) was used as vector to construct recombinant baculovirus coexpressing GP5 and M protein of porcine reproductive and respiratory syndrome virus (PRRSV), under the transcriptional control of two independent cytomegalovirus immediate early (CMV-IE) enhancer/promoters. The resultant recombinant baculovirus (BV-G-5m6) efficiently expressed PRRSV GP5 and M protein in mammalian cells. Intramuscular injection of BV-G-5m6 with various doses (1 x 10(8), 1 x 10(9), and 1 x 10(10)PFU/mouse) induced the production of PRRSV-specific neutralizing antibodies and gamma interferon (IFN-gamma) under dose-dependent pattern. Furthermore, BV-G-5m6 performed better immunogenicity, even at low dose (10(8)PFU), than DNA construct (pCI-5m6) encoding the same antigens, as demonstrated by significantly enhanced neutralizing antibodies and IFN-gamma production. These results indicate that pseudotype baculovirus-mediated gene delivery can be utilized as an alternative strategy to develop new generation of vaccine against PRRSV infection. FAU - Wang, Shengping AU - Wang S AD - State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, Hubei, P.R.China. FAU - Fang, Liurong AU - Fang L FAU - Fan, Huiying AU - Fan H FAU - Jiang, Yunbo AU - Jiang Y FAU - Pan, Yongfei AU - Pan Y FAU - Luo, Rui AU - Luo R FAU - Zhao, Qian AU - Zhao Q FAU - Chen, Huanchun AU - Chen H FAU - Xiao, Shaobo AU - Xiao S LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20071022 PL - Netherlands TA - Vaccine JT - Vaccine JID - 8406899 RN - 0 (Antibodies, Viral) RN - 0 (M protein, porcine reproductive and respiratory syndrome virus) RN - 0 (Viral Envelope Proteins) RN - 0 (Viral Matrix Proteins) RN - 0 (Viral Vaccines) RN - 0 (glycoprotein 5, PRRSV) RN - 82115-62-6 (Interferon-gamma) SB - IM MH - Animals MH - Antibodies, Viral/*blood MH - Baculoviridae/*genetics/immunology/metabolism MH - Cell Line MH - Female MH - Interferon-gamma/biosynthesis MH - Mice MH - Mice, Inbred BALB C MH - Neutralization Tests MH - Porcine Reproductive and Respiratory Syndrome/prevention & control MH - Porcine respiratory and reproductive syndrome virus/genetics/immunology/metabolism MH - *Recombination, Genetic MH - Swine MH - *Viral Envelope Proteins/genetics/immunology/metabolism MH - *Viral Matrix Proteins/genetics/immunology/metabolism MH - Viral Vaccines/administration & dosage/genetics/immunology EDAT- 2007/11/06 09:00 MHDA- 2008/02/26 09:00 CRDT- 2007/11/06 09:00 PHST- 2007/07/03 00:00 [received] PHST- 2007/09/19 00:00 [revised] PHST- 2007/09/25 00:00 [accepted] PHST- 2007/11/06 09:00 [pubmed] PHST- 2008/02/26 09:00 [medline] PHST- 2007/11/06 09:00 [entrez] AID - S0264-410X(07)01106-1 [pii] AID - 10.1016/j.vaccine.2007.09.069 [doi] PST - ppublish SO - Vaccine. 2007 Nov 28;25(49):8220-7. doi: 10.1016/j.vaccine.2007.09.069. Epub 2007 Oct 22.