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Characterization and purification of oligonucleotides-polymer conjugates with higher-order structure

Research Project

Project/Area Number 18K04854
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 27040:Biofunction and bioprocess engineering-related
Research InstitutionYamaguchi University

Principal Investigator

Yoshimoto Noriko  山口大学, 大学院創成科学研究科, 准教授 (40432736)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2019: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsオリゴ核酸 / PEGylation / クロマトグラフィー分離 / イオン交換クロマトグラフィー / DNA / ハイブリダイゼーション / 蛍光法 / クロマトグラフィー / monolith / PEG / chromatography / PEG化DNA
Outline of Final Research Achievements

We synthesized PEGylated oligo DNA with defined PEG modification positions and numbers to characterize the structure and molecular properties as a candidate of bio-pharmaceuticals. The retention and elution behavior with these oligo and PEGylated oligo DNA were analyzed on the several type of ion-exchange chromatography, conventional particle resin and monolith column, and conventional ion exchange ligand and graft polymer ligand Furthermore, based on the efficiency of double-strand formation using fluorescent molecules and the circular dichroism spectrum, the effect of PEG chains on the structure of the molecular surface layer of PEGylated DNA and the internal higher-order structure was also investigated.

Academic Significance and Societal Importance of the Research Achievements

核酸医薬は次世代型医薬品として期待されており、核酸の安定性や機能を向上させるPEG化は医薬品化に向けた有望な技術の一つとして考えられている。しかし、PEG化核酸の生物学的機能の向上については検討された報告例が多く存在するものの、その実際の製造プロセスを構築する上で重要となる分子特性についてはあまり検討されておらず、高純度化するための分離技術についても報告例は少ない。本研究では、一般的な医薬品分離に用いられるクロマトグラフィー分離に着目し、これらにおける保持溶出特性に基づきPEG化核酸の構造解析を行い、その分子特性について明らかにした。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2021 2020 2019 2018

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Retention and diffusion characteristics of oligonucleotides in a solid phase with polymer grafted anion-exchanger2020

    • Author(s)
      Chyi-ShinChen, Joao C.Simoes-Cardoso, Yuka Ikezuki, Daichi Tanaka, Noriko Yoshimoto, ShuichiYamamoto
    • Journal Title

      Journal of chromatography A

      Volume: 1629 Pages: 1-7

    • DOI

      10.1016/j.chroma.2020.461495

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] グラフト型ポリマー鎖を導入したモノリス型シリカカラムの評価2021

    • Author(s)
      吉村裕輔, 吉本 則子
    • Organizer
      第23回化学工学会学生発表会
    • Related Report
      2020 Annual Research Report
  • [Presentation] モノリスクロマトグラフィーによる修飾オリゴ 核酸の構造解析2020

    • Author(s)
      田中 大智・Joao Cardoso・吉本 則子・山本 修一
    • Organizer
      化学工学会第85年会
    • Related Report
      2019 Research-status Report
  • [Presentation] Analysis of PEGylated DNAs Retention in Electrostatic Interaction Chromatography2019

    • Author(s)
      Noriko YOSHIMOTO, Yoshiatsu ONO, Shuichi YAMAMOTO
    • Organizer
      18th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Diffusion behavior of biopolymer in ion exchange carrier with graft type ligand2019

    • Author(s)
      Kenta NAKANO, Noriko YOSIMOTO, Syuichi YAMAMOTO
    • Organizer
      18th Asian Pacific Confederation of Chemical Engineering Congress (APCChE 2019)
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] 2本鎖PEG修飾DNAの作製とイオン交換クロマトグラフィー保持特性の解析2018

    • Author(s)
      尾野 慈厚・吉本 則子・山本 修一
    • Organizer
      化学工学会 第50回秋季大会
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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