title: Japanese encephalitis virus production in Vero cells with serum-free medium using a novel oscillating bioreactor.
abstract: A novel oscillating bioreactor, BelloCell, was successfully applied for the cultivation of Vero cells using serum-free medium, and the production of Japanese encephalitis virus. The BelloCell requires no air sparging, pumping, or agitation, and thus provides a low shear environment. Owing to its simple design, BelloCell is extremely easy to handle and operate. Using this BelloCell (500 ml culture), Vero cells reached a maximum number of 2.8 x 10(9) cells and the Japanese encephalitis virus yield reached 6.91 x 10(11) PFU, versus 9.0 x 10(8) cells and 2.98 x 10(11) PFU using a spinner flask (500 ml) with microcarriers. The cell yield and virus production using BelloCell were markedly higher than with microcarrier culture. The neutralizing capacity of the Japanese encephalitis virus produced using BelloCell was equal to that using a microcarrier system. Therefore, these benefits should enable BelloCell to be adopted as a simple system for high population density cell culture and virus production.
authors.affiliation: Department of Research and Development, Research Center for Biologicals, The Kitasato Institute, 6-111 Arai, Kitamoto, Saitama, Japan.
authors.forename: Hiroko
authors.initials: H
authors.lastname: Toriniwa
authors.forename: Tomoyoshi
authors.initials: T
authors.lastname: Komiya
mesh_terms: D000818:Animals; D019149:Bioreactors / Q000821:virology*; D002522:Chlorocebus aethiops; D016895:Culture Media, Serum-Free; D004664:Encephalitis Virus, Japanese / Q000276:immunology / Q000302:isolation & purification* / Q000502:physiology*; D004867:Equipment Design; D005260:Female; D007114:Immunization; D022321:Japanese Encephalitis Vaccines / Q000008:administration & dosage / Q000302:isolation & purification; D051379:Mice; D009500:Neutralization Tests; D014709:Vero Cells; D014776:Virus Cultivation / Q000295:instrumentation / Q000379:methods*; D014779:Virus Replication
chemical_list: D016895:Culture Media, Serum-Free; D022321:Japanese Encephalitis Vaccines