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2020 Fiscal Year Final Research Report

Elucidation of effectiveness and mechanism of new water-soluble glycolipids in bacterial pneumonia control

Research Project

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Project/Area Number 18H02657
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 49050:Bacteriology-related
Research InstitutionKyoto Pharmaceutical University

Principal Investigator

Oda Masataka  京都薬科大学, 薬学部, 教授 (00412403)

Co-Investigator(Kenkyū-buntansha) 加藤 伸一  京都薬科大学, 薬学部, 教授 (90281500)
栄田 敏之  京都薬科大学, 薬学部, 教授 (00304098)
林 直樹  京都薬科大学, 薬学部, 助教 (70707463)
Project Period (FY) 2018-04-01 – 2021-03-31
Keywords薬剤耐性菌 / 水溶性糖脂質 / 緑膿菌 / ベン毛
Outline of Final Research Achievements

The emergence of drug-resistant bacteria, have a significant impact on Japan's medical system, which has been dependent on antibiotics. In particular, the infection of drug resistant bacteria is widespread in hospitals for the elderly. Therefore, in this study, we analyzed the effects of water-soluble glycolipids (original compound) on pneumonia-causing bacteria, especially Pseudomonas aeruginosa, which is a problem in nosocomial pneumonia. It was found that the water-soluble glycolipid suppresses the movement of flagella by reducing the expression of genes involved in cell motility without killing Pseudomonas aeruginosa. In the future, we will proceed with in vivo experiments and analysis of the effects of water-soluble glycolipids on other bacterial species.

Free Research Field

細菌学

Academic Significance and Societal Importance of the Research Achievements

高齢化社会が進む我が国では、肺炎が死因の上位となっている。また、肺炎起因菌の薬剤耐性化が進んでいるため、これまで使用してきた抗菌薬が効かないといった問題が起きている。特に高齢者で多く見られる誤嚥性肺炎や病院内で拡がる院内肺炎は、大きな社会問題である。今回我々が開発した水溶性糖脂質は、これまでに無い作用メカニズムで肺炎起因菌である緑膿菌の動きを制御出来ることが明らかとなった。本化合物は、免疫賦活作用なども有しているため、緑膿菌以外の肺炎起因菌による炎症反応を抑制できると予想され、細菌性肺炎の予防や治療につながる研究に発展できると考える。

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Published: 2022-01-27  

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