PMID- 8393415 OWN - NLM STAT- MEDLINE DCOM- 19930902 LR - 20190512 IS - 0378-1097 (Print) IS - 0378-1097 (Linking) VI - 109 IP - 2-3 DP - 1993 May 15 TI - Large scale production and purification of human retrovirus-like particles related to the mouse mammary tumor virus. PG - 289-96 AB - Human retrovirus-like particles related to mouse mammary tumor virus (MMTV) are secreted in a steroid-dependent manner by the breast cancer cell line T47D. We report the successful large scale production and purification of these particles from culture supernatants of T47D cells and describe the experimental conditions established for this purpose. Thus, mg amounts of particles were produced by large scale culturing of T47D cells in an autoharvesting roller bottle system and purified by differential centrifugation and continuous flow ultracentrifugation on density gradients with a 50% recovery and a 350-fold enrichment. FAU - Faff, O AU - Faff O AD - Medizinische Poliklinik, Universitat Munchen, FRG. FAU - Murray, B A AU - Murray BA FAU - Erfle, V AU - Erfle V FAU - Hehlmann, R AU - Hehlmann R LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - FEMS Microbiol Lett JT - FEMS microbiology letters JID - 7705721 SB - IM MH - Animals MH - Breast Neoplasms MH - Cell Division MH - Humans MH - Mammary Tumor Virus, Mouse/growth & development/isolation & purification MH - Microscopy, Electron MH - Retroviridae/*growth & development/isolation & purification MH - Tumor Cells, Cultured MH - *Virus Cultivation EDAT- 1993/05/15 00:00 MHDA- 1993/05/15 00:01 CRDT- 1993/05/15 00:00 PHST- 1993/05/15 00:00 [pubmed] PHST- 1993/05/15 00:01 [medline] PHST- 1993/05/15 00:00 [entrez] AID - 10.1016/0378-1097(93)90035-z [doi] PST - ppublish SO - FEMS Microbiol Lett. 1993 May 15;109(2-3):289-96. doi: 10.1016/0378-1097(93)90035-z.