Modular surface display for porcine circovirus type 2 virus-like particles mediated by microbial transglutaminase

Akitsu Masuda, Kosuke Minamihata, Masato Hino, Daisuke Morokuma, Noriko Karasaki, Hiroaki Mon, Noriho Kamiya, Takahiro Kusakabe, Jae Man Lee

研究成果: Contribution to journalArticle査読

抄録

Virus-like particles (VLPs) are multi-protein complex, which mimic viral particles without viral genomes. Recently various applications of VLPs for medical and pharmaceutical fields are developed. Furthermore, surface modification of VLPs is expected to extend their functional versatility. As an enzymatic strategy for the modification, microbial transglutaminase (MTG) that catalyzes the covalent bond between a glutamine residue and a ly-sine residue or a primary amine is suitable for efficient protein ligation. In the previous study, we demonstrated the efficient production of immunogenic VLPs of porcine circovirus type 2 (PCV2) using silkworm-baculovirus expression vector system (silkworm-BEVS). Herein, we established the display system of exotic molecules to VLPs by enzymatic covalent cross-linking using MTG. For the target modification, Q-tag (YPLQMRG) that is MTG reactive sequence were introduced into the N-terminus, C-terminus, or loop BC of capsid protein of PCV2 and successfully expressed as VLPs in silkworm pupae. Of these, PCV2 VLPs with Q-tag at the loop BC and C-terminus were efficiently conjugated with FITC-cadaverine and K-tagged (MRHKGS) EGFP by MTG. These results showed that flexible surface modification of VLPs mediated by MTG could be used for development of several therapeutic tools such as multivalent vaccines.

本文言語英語
ページ(範囲)53-60
ページ数8
ジャーナルJournal of Insect Biotechnology and Sericology
87
2
DOI
出版ステータス出版済み - 2018

All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 応用微生物学とバイオテクノロジー
  • ビジネス、管理および会計(全般)
  • 農業および生物科学(全般)
  • 昆虫科学
  • 産業および生産工学

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