“…Because the investment cost and time for phase 1 cGMP manufacturing of plant expression system are comparatively cost-effective (7.5- to 10-fold) and faster (<6 months) than mammalian expression system, the plant-production platform might be an alternative platform for the production of many biopharmaceutical products. The use of plant expression systems for the production of pharmaceutically important proteins ( Bulaon et al, 2020 ; Hanittinan et al, 2020 ), vaccines ( Marsian et al, 2017 ; Rosales-Mendoza et al, 2017 ), diagnostic reagents ( Rattanapisit et al, 2021 ), and antibodies ( Kopertekh et al, 2019 ; Hurtado et al, 2020 ; Rattanapisit et al, 2020 ) were documented. In addition, the prior studies reported that the generation of plant-made protective immunogen and therapeutic antibodies ( Dent et al, 2016 ; Rattanapisit et al, 2019a , b ; Nessa et al, 2020 ; Yiemchavee et al, 2021 ).…”