Cultured meat produced through in vitro cell culture technology is regarded as a technical revolution.In this study,three-dimensional(3D)bioprinting technology was used to mimic the growth environment in vivo and cons...Cultured meat produced through in vitro cell culture technology is regarded as a technical revolution.In this study,three-dimensional(3D)bioprinting technology was used to mimic the growth environment in vivo and construct a 3D culture system in vilro.Hydroge1 bioinks,namely,sodium alginate-gelatin and gelatin-methacrylate(GelMA)-silk fbroin,produced using two different curing processes were blended,and their rheological properties,mechanical properties,and biocompatibilities were compared.The 4%GelMA-20%silk fibroin hydroge1(GS2)demonstrated good performance and was hybridized with porcine skeleta1 muscle satellite cells for 3D printing to construct network structures of size 15 mm×15 mm and porosity 1000 um in 4-,6-,and 8-1ayer struchures.After 16 days of culture,4-and 6-1ayer grid structures formed compact muscle fbers organized by multinucleated myotubes.These results suggested that 3D bioprinting and GeIMA-silk fbroin hydrogels have great potential in fabricating porcine skeleta1 muscle tissue for use as cultured meat.展开更多
文摘Cultured meat produced through in vitro cell culture technology is regarded as a technical revolution.In this study,three-dimensional(3D)bioprinting technology was used to mimic the growth environment in vivo and construct a 3D culture system in vilro.Hydroge1 bioinks,namely,sodium alginate-gelatin and gelatin-methacrylate(GelMA)-silk fbroin,produced using two different curing processes were blended,and their rheological properties,mechanical properties,and biocompatibilities were compared.The 4%GelMA-20%silk fibroin hydroge1(GS2)demonstrated good performance and was hybridized with porcine skeleta1 muscle satellite cells for 3D printing to construct network structures of size 15 mm×15 mm and porosity 1000 um in 4-,6-,and 8-1ayer struchures.After 16 days of culture,4-and 6-1ayer grid structures formed compact muscle fbers organized by multinucleated myotubes.These results suggested that 3D bioprinting and GeIMA-silk fbroin hydrogels have great potential in fabricating porcine skeleta1 muscle tissue for use as cultured meat.
