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Development of smart lactic acid bacteria

Research Project

Project/Area Number 20K20656
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Studies on the Super-Aging Society
Research InstitutionShinshu University

Principal Investigator

Shimosato Takeshi  信州大学, 学術研究院農学系, 教授 (00467200)

Co-Investigator(Kenkyū-buntansha) 荻田 佑  信州大学, 学術研究院農学系, 助教 (50738010)
佐藤 隆  信州大学, 先鋭領域融合研究群バイオメディカル研究所, 特任教授 (70510436)
重盛 駿  信州大学, 先鋭領域融合研究群バイオメディカル研究所, 助教(特定雇用) (90803487)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
Keywords乳酸菌 / 機能強化 / 育種 / リボソーム工学 / 遺伝子組換え / プロバイオティクス / スマート乳酸菌 / スマート
Outline of Research at the Start

本研究では、「限界まで健康機能を引き出す」「個人に最適化」という意味を “スマート”という単語に込め、革新的な健康効果を生み出すスマート乳酸菌の提唱を目指す。具体的には、プロバイオティック乳酸菌を用いて、乳酸菌機能の脆弱性を克服する育種技術の開発の他、ゲノム編集による機能強化に取り組む。機能強化乳酸菌=スマート乳酸菌の概念を打ち立て、超高齢社会に貢献する乳酸菌研究を創出する。

Outline of Final Research Achievements

Health promotion and prevention of disorders through daily diet is an ideal approach. The use of probiotics, whose safety is well-established, has been increasing annually for this purpose. Much research about probiotic properties has been performed, however, it is pointed out that even the effectiveness of the same probiotic strain varies depending on the individual host because of the environmental background and gut microbiota. In this context, developmental research on probiotics based on designing and/or breeding technology is gaining attention. In this study, we provided an application of genetic engineering and ribosome engineering to lactic acid bacteria to propose probiotics with robust functionality.

Academic Significance and Societal Importance of the Research Achievements

人々のQOL(Quality of Life)の増進や健康寿命の延伸が望まれる中、プロバイオティクスはその利用機会を増やしている。本研究では、強力で安定した生体調節作用を有する乳酸菌の取得を目的として、遺伝子工学を用いた機能性乳酸菌の創出と、リボソーム工学を用いた乳酸菌の育種研究を実行した。日頃の食生活が、疾患の予防・軽減や健康の増進を担うライフスタイルはまさに理想的であり、機能強化乳酸菌の創出は学術的、社会的意義の高い研究として位置づけられる。

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (5 results)

All 2022 2021

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) (of which Invited: 1 results)

  • [Journal Article] 機能強化乳酸菌の創製研究2022

    • Author(s)
      生井楓,下里剛士
    • Journal Title

      日本乳酸菌学会誌

      Volume: 33 Pages: 5-11

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] 腸内常在性乳酸菌におけるイムノバイオティック機能の強化2021

    • Author(s)
      金山理佐, 生井楓,重盛駿,下里剛士
    • Organizer
      酪農科学シンポジウム2021
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bacterial changes associated with the rpsL gene mutation in Lacticaseibacillus rhamnosus GG2021

    • Author(s)
      Masami Tsukagoshi, Fu Namai, Suguru Shigemori, Takeshi Shimosato
    • Organizer
      The 11th Asian Conference on Lactic Acid Bacteria
    • Related Report
      2021 Annual Research Report
  • [Presentation] 機能強化乳酸菌の創製研究2021

    • Author(s)
      下里剛士
    • Organizer
      日本乳酸菌学会設立30周年記念シンポジウム
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] A breeding strategy of ribosome engineering for probiotics enhances the adhesion to human colonic mucin in Lacticaseibacillus rhamnosus GG2021

    • Author(s)
      Namai Fu, Shigemori Suguru, Shimosato Takeshi
    • Organizer
      日本農芸化学会 2021年度大会
    • Related Report
      2020 Research-status Report

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Published: 2020-08-03   Modified: 2023-01-30  

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