PMID- 23220338 OWN - NLM STAT- MEDLINE DCOM- 20130701 LR - 20191210 IS - 1872-7492 (Electronic) IS - 0168-1702 (Linking) VI - 171 IP - 1 DP - 2013 Jan TI - Generation and characterization of a porcine endometrial endothelial cell line susceptible to porcine reproductive and respiratory syndrome virus. PG - 209-15 LID - S0168-1702(12)00460-1 [pii] LID - 10.1016/j.virusres.2012.11.015 [doi] AB - Previous studies on the underlying mechanism for porcine reproductive and respiratory syndrome virus (PRRSV)-induced reproductive failure have been focused on the viral replication in the endothelial macrophages, and the susceptibility of porcine endometrial endothelial (PEE) cells to PRRSV has not yet been investigated. Therefore, in the present study we generated a PEE cell line by transfection of the primary cells with a SV40 large T antigen expression vector. The PEE cell line maintained the endothelial morphology with a significantly faster growth rate, shorter population doubling time and higher plating efficiency than the primary cells. The endothelial origination of the cell line was confirmed by detection of the endothelial cell-specific markers. The PEE cell line had been passed successively for 60 generations with an unlimited growth potential. To further characterize the PEE cell line, cells of different passages were infected with different PRRSV strains and analyzed for the viral antigen and replication. Overt cytopathic effect was observed from 36h postinfection (HPI) and the viral antigen detected as early as 12 HPI. The infectious virus was recovered from the infected PEE cells with a titer higher than that in MARC-145 cells. Since the data presented indicate a high susceptibility of PEE cells to PRRSV, we conclude that the PEE cell line generated will be useful for growth of PRRSV and further studies on the underlying mechanism for PRRSV infection of PEE cells. The finding of the susceptibility of PEE cells to PRRSV may provide an alternative explanation for PRRSV-induced reproductive failure. CI - Copyright (c) 2012 Elsevier B.V. All rights reserved. FAU - Feng, Lili AU - Feng L AD - College of Veterinary Medicine, Yangzhou University, 48 Wenhui Road, Yangzhou 225009, Jiangsu, PR China. FAU - Zhang, Xinyu AU - Zhang X FAU - Xia, Xiaoli AU - Xia X FAU - Li, Yangyang AU - Li Y FAU - He, Shan AU - He S FAU - Sun, Huaichang AU - Sun H LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20121205 PL - Netherlands TA - Virus Res JT - Virus research JID - 8410979 SB - IM MH - Animals MH - Cell Line MH - Chlorocebus aethiops MH - Endometrium/*virology MH - Endothelial Cells/*virology MH - Female MH - Porcine respiratory and reproductive syndrome virus/growth & development/*physiology MH - *Swine MH - Virus Replication EDAT- 2012/12/12 06:00 MHDA- 2013/07/03 06:00 CRDT- 2012/12/11 06:00 PHST- 2012/09/21 00:00 [received] PHST- 2012/11/23 00:00 [revised] PHST- 2012/11/26 00:00 [accepted] PHST- 2012/12/11 06:00 [entrez] PHST- 2012/12/12 06:00 [pubmed] PHST- 2013/07/03 06:00 [medline] AID - S0168-1702(12)00460-1 [pii] AID - 10.1016/j.virusres.2012.11.015 [doi] PST - ppublish SO - Virus Res. 2013 Jan;171(1):209-15. doi: 10.1016/j.virusres.2012.11.015. Epub 2012 Dec 5.