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2021 Fiscal Year Final Research Report

Development of plastic antibodies that inhibit intestinal absorption of target molecules

Research Project

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Project/Area Number 19H04450
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 90110:Biomedical engineering-related
Research InstitutionUniversity of Shizuoka

Principal Investigator

Koide Hiroyuki  静岡県立大学, 薬学部, 講師 (60729177)

Co-Investigator(Kenkyū-buntansha) 浅井 知浩  静岡県立大学, 薬学部, 教授 (00381731)
奥 直人  帝京大学, 薬学部, 教授 (10167322)
星野 友  九州大学, 工学研究院, 准教授 (40554689)
Project Period (FY) 2019-04-01 – 2022-03-31
Keywordsナノ粒子 / 合成高分子 / 糖尿病 / 腎疾患 / 分子認識
Outline of Final Research Achievements

This study aims to develop orally administered plastic antibodies that specifically adsorb target molecules in the intestine and inhibit the intestinal absorption, and demonstrate their usefulness in the treatment of various diseases. In the development of plastic antibodies that specifically adsorb indole and glucose, we have succeeded in inhibiting their gastrointestinal absorption by oral administration of indole or glucose and plastic antibodies. Furthermore, oral administration of a plastic antibody that binds to α-glucosidase, a disaccharide-degrading enzyme that is abundantly expressed in the microvilli of the small intestine, successfully inhibited the increase in blood glucose levels even when maltose, a disaccharide, was administered orally. These results demonstrate the usefulness of plastic antibodies as orally administered agents.

Free Research Field

薬物送達

Academic Significance and Societal Importance of the Research Achievements

現在臨床では活性炭などが経口吸着剤として使用されている。しかし、服用量の膨大さや、非特異的な吸着が問題となっており、新規薬剤の開発が望まれている。本研究では、消化管で標的分子を吸着してその消化管吸収を阻害するプラスチック抗体の有用性をin vivoで証明した。これまで開発されてきた合成高分子は、in vitroでの研究が殆どであり、in vivoで合成高分子の有用性を示した例は殆どない。そのため、in vivoでその有用性を証明した本研究の学術的意義は高い。さらに、本研究で開発したプラスチック抗体は、これまでの経口吸着剤の問題点を克服できることからその社会的意義は高い。

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Published: 2023-01-30  

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