title: Comparison of large-scale mammalian cell culture systems with egg culture for the production of influenza virus A vaccine strains.
abstract: Different types of microcarriers were assessed for the large-scale culture of influenza virus in the Madin-Darby canine kidney (MDCK) cells. Both porous and solid carriers were examined. A higher titre of influenza A/PR8/34 virus was recovered from cultures using solid (1.3x10(9) PFU per ml) rather than porous carriers (4.0x10(8) PFU per ml). High titres of virus (1.0x10(9) PFU per ml) were also obtained from roller bottle cultures of MDCK cells and the traditional culture technique using embryonated hens' eggs (3.9x10(9) PFU per ml). We found that solid carriers composed of dextran with a positive charge are the most suitable carriers for the large-scale growth of influenza A virus in MDCK cells using serum-free media.
authors.affiliation: Centre for Applied Microbiology and Research (CAMR), Salisbury, SP4 0JG, Wiltshire, UK. julia.tree@camr.org.uk
authors.forename: J A
authors.initials: JA
authors.lastname: Tree
authors.forename: C
authors.initials: C
authors.lastname: Richardson
authors.forename: A R
authors.initials: AR
authors.lastname: Fooks
authors.forename: J C
authors.initials: JC
authors.lastname: Clegg
authors.forename: D
authors.initials: D
authors.lastname: Looby
mesh_terms: D000818:Animals; D002460:Cell Line; D002642:Chick Embryo; D004285:Dogs; D006801:Humans; D009980:Influenza A virus / Q000254:growth & development* / Q000302:isolation & purification*; D007252:Influenza Vaccines / Q000302:isolation & purification*; D014776:Virus Cultivation / Q000379:methods*
chemical_list: D007252:Influenza Vaccines