title: Cultivation of cottontail rabbit epidermal (Sf1Ep) cells on microcarrier beads and their use for suspension cultivation of Treponema pallidum subsp. pallidum.
abstract: In vitro propagation of Treponema pallidum can be achieved by cocultivation with Sf1Ep cells. This study had two objectives: (i) to achieve suspension cultivation of Sf1Ep cells and (ii) to develop procedures for achieving the replication of T. pallidum in those cell cultures. Seven suspension cultures of Sf1Ep cells yielded an average of 7.2 x 10(8) T. pallidum (36-fold increase) after 12 days.
authors.affiliation: Department of Microbiology and Immunology, Texas College of Osteopathic Medicine, Fort Worth 76107.
authors.forename: B S
authors.initials: BS
authors.lastname: Riley
authors.forename: D L
authors.initials: DL
authors.lastname: Cox
mesh_terms: D000818:Animals; D001431:Bacteriological Techniques; D002478:Cells, Cultured; D003470:Culture Media; D004817:Epidermis; D008855:Microscopy, Electron, Scanning; D008863:Microspheres; D011817:Rabbits; D014210:Treponema pallidum / Q000254:growth & development* / Q000648:ultrastructure
chemical_list: D003470:Culture Media