Abstract
L particles, composed of the L protein of the hepatitis B virus surface antigen, are candidates for a specific gene and drug delivery system. We previously constructed stably transfected insect cells for L particle production. In this study, the cells were successfully immobilized within porous biomass support particles (BSPs) in shake-flask culture. The immobilized cells showed a high specific productivity, comparable to the maximum productivities in static and shake-flask cultures of nonimmobilized cells.
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