PMID- 2175590 OWN - NLM STAT- MEDLINE DCOM- 19910128 LR - 20190815 IS - 0304-8608 (Print) IS - 0304-8608 (Linking) VI - 115 IP - 3-4 DP - 1990 TI - Establishment of transformed swine fibroblast cell lines using SV40 large T antigen. PG - 227-37 AB - Swine testicle cell lines were established by transformation of primary swine testicle (PST) cells with an SV40 plasmid (pSV3-neo), which contains genes conferring resistance to neomycin and expressing SV40 large T antigen. Plasmid DNA was transfected into PST cells using a lipofection system. Two related plasmids, pSV2-neo and pSV5-neo, failed to induce transformed cells. Cells transformed with pSV3-neo formed single colonies that were resistant to the antibiotic, G418, and expressed large T antigen. Upon two cycles of cloning by endpoint dilution method, three transformed clones, designated transformed swine testicle (tST)-3, tST-14 and tST-18, were selected and characterized in regards to cell replication and susceptibility to swine viruses. The resultant clones were compared with a counterpart non-transformed ST cell line (ATCC-ST). The three tST cell lines showed longer or the same doubling times and higher saturation densities compared to ATCC-ST cells. These cells were free from a range of adventitious agents and supported the replication of porcine parvovirus (PPV), pseudorabies virus (PRV) and transmissible gastroenteritis virus (TGEV), comparable to ATCC-ST cells. All three cell lines have been maintained in continuous cultures for over 60 passages with no changes in growth characteristics. These findings indicate that lipofection with pSV3-neo is an efficient means for the introduction of exogenous DNA into porcine cells and for establishment of transformed immortalized cell lines. FAU - Choi, C S AU - Choi CS AD - Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Minnesota, St. Paul. FAU - Murtaugh, M P AU - Murtaugh MP FAU - Molitor, T W AU - Molitor TW LA - eng PT - Journal Article PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (Antigens, Polyomavirus Transforming) SB - IM MH - Animals MH - *Antigens, Polyomavirus Transforming MH - Cell Division MH - *Cell Line, Transformed MH - *Cell Transformation, Viral MH - Clone Cells MH - Fibroblasts MH - Male MH - Plasmids MH - Simian virus 40 MH - Swine MH - Testis/cytology MH - Transfection MH - Viruses/isolation & purification EDAT- 1990/01/01 00:00 MHDA- 1990/01/01 00:01 CRDT- 1990/01/01 00:00 PHST- 1990/01/01 00:00 [pubmed] PHST- 1990/01/01 00:01 [medline] PHST- 1990/01/01 00:00 [entrez] AID - 10.1007/BF01310532 [doi] PST - ppublish SO - Arch Virol. 1990;115(3-4):227-37. doi: 10.1007/BF01310532.