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김형진,조서영,박민혜,김홍진 대한약학회 2018 Archives of Pharmacal Research Vol.41 No.5
Insect and yeast cells are considered theexpression systems of choice for producing virus-likeparticles (VLPs), and numerous types of VLPs have beenproduced in these systems. However, previous studies wererestricted to identifying the characteristics of individualVLP preparations. No direct comparison of the structuresand immunogenic properties of insect and yeast-derivedVLPs has so far been made. In the present study, the sizedistribution and immunogenic properties of human papillomavirustype 16 (HPV16) L1 VLPs produced in Spodopterafrugipedra-9 insect cells and Saccharomycescerevisiae were compared. The insect cell-derived VLPswere larger than the yeast ones (P\0.0001), with mediansizes of 34 and 26 nm, respectively. In addition, the insectderivedVLPs appeared to be more diverse in size than theyeast-derived VLPs. Immunization of mice with 30 ng perdose of VLPs elicited 2.7- and 2.4-fold higher anti-HPV16L1 IgG and anti-HPV16 neutralizing antibody titers thanimmunization with the same amounts of the yeast-derivedVLPs after the 4th immunizations, respectively. Our resultssuggest that the choice of expression system criticallyaffects the particle size and immunogenic property ofHPV16 L1 VLPs.