title: Bioreactor design for successive culture of anchorage-dependent cells operated in an automated manner.
abstract: A novel bioreactor system was designed to perform a series of batchwise cultures of anchorage-dependent cells by means of automated operations of medium change and passage for cell transfer. The experimental data on contamination frequency ensured the biological cleanliness in the bioreactor system, which facilitated the operations in a closed environment, as compared with that in flask culture system with manual handlings. In addition, the tools for growth prediction (based on growth kinetics) and real-time growth monitoring by measurement of medium components (based on small-volume analyzing machinery) were installed into the bioreactor system to schedule the operations of medium change and passage and to confirm that culture proceeds as scheduled, respectively. The successive culture of anchorage-dependent cells was conducted with the bioreactor running in an automated way. The automated bioreactor gave a successful culture performance with fair accordance to preset scheduling based on the information in the latest subculture, realizing 79- fold cell expansion for 169 h. In addition, the correlation factor between experimental data and scheduled values through the bioreactor performance was 0.998. It was concluded that the proposed bioreactor with the integration of the prediction and monitoring tools could offer a feasible system for the manufacturing process of cultured tissue products.
authors.affiliation: Division of Chemical Engineering, Graduate School of Engineering Science, Osaka University, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kino-Oka
authors.forename: Natsuki
authors.initials: N
authors.lastname: Ogawa
authors.forename: Ryota
authors.initials: R
authors.lastname: Umegaki
authors.forename: Masahito
authors.initials: M
authors.lastname: Taya
mesh_terms: D000465:Algorithms; D019149:Bioreactors; D002448:Cell Adhesion / Q000502:physiology; D018929:Cell Culture Techniques / Q000295:instrumentation* / Q000379:methods; D002460:Cell Line; D049109:Cell Proliferation; D002470:Cell Survival; D003198:Computer Simulation; D003470:Culture Media / Q000737:chemistry / Q000378:metabolism; D004847:Epithelial Cells / Q000166:cytology* / Q000502:physiology*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D017022:Flow Injection Analysis / Q000295:instrumentation / Q000379:methods; D005947:Glucose / Q000378:metabolism*; D007700:Kinetics; D008954:Models, Biological; D012371:Robotics / Q000295:instrumentation* / Q000379:methods; D013048:Specimen Handling / Q000295:instrumentation / Q000379:methods; D023822:Tissue Engineering / Q000295:instrumentation* / Q000379:methods
chemical_list: D003470:Culture Media; D005947:Glucose