High-level expression and purification of biologically active human IL-2 using silkworm-baculovirus expression vector system

Masato Hino, Takuji Kawanami, Jian Xu, Daisuke Morokuma, Kazuma Hirata, Mami Yamashita, Noriko Karasaki, Tuneyuki Tatsuke, Hiroaki Mon, Kazuhiro Iiyama, Noriho Kamiya, Yutaka Banno, Takahiro Kusakabe, Jae Man Lee

研究成果: Contribution to journalArticle査読

8 被引用数 (Scopus)

抄録

Interleukin 2 (IL-2) is a pharmacologically vital cytokine secreted mainly by activated CD4+ T lymphocyte. Recombinant human IL-2 (rhIL-2) protein has already been globally applied as an immune-therapeutic reagent for various diseases. Therefore, there is great interest in developing an active form of rhIL-2 in very large amounts and with excellent purity for clinical use. In this study, we successfully mass-expressed and purified N- or C-terminal tandem tag-fused rhIL-2 in a baculovirus expression vector system (BEVS) using silkworm larvae as factories. We confirmed that the intrinsic instability of hIL-2 causes the loss and low recovery of N-tagged rhIL-2 and that C-tagged rhIL-2 is more suitable for mass production. Furthermore, the activity of purified rhIL-2s was further validated by a cell proliferation assay of a human natural killer cell line, and both rhIL-2 proteins produced in the silkworm-BEVS exhibited comparable activity to that of the commercial E.coli-derived rhIL-2. Taken together, our results and strategies could contribute greatly to the mass production of active rhIL-2.

本文言語英語
ページ(範囲)313-317
ページ数5
ジャーナルJournal of Asia-Pacific Entomology
19
2
DOI
出版ステータス出版済み - 6 1 2016

All Science Journal Classification (ASJC) codes

  • Insect Science

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