2021 Fiscal Year Final Research Report
Elucidation of the pathophysiology of MAC pulmonary disease focusing on bacterial cell wall lipids
Project/Area Number |
19K08936
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 54030:Infectious disease medicine-related
|
Research Institution | Keio University |
Principal Investigator |
|
Co-Investigator(Kenkyū-buntansha) |
長谷川 直樹 慶應義塾大学, 医学部(信濃町), 教授 (20198724)
下田 将之 慶應義塾大学, 医学部(信濃町), 准教授 (70383734)
|
Project Period (FY) |
2019-04-01 – 2022-03-31
|
Keywords | 非結核性抗酸菌症 / 肺MAC症 |
Outline of Final Research Achievements |
To figure out the pathophysiology of Mycobacterium avium complex (MAC) pulmonary disease, which is a nontuberculous mycobacterial pulmonary disease, we studied about the biological activity of bacterial cell wall lipids, glycopeptidolipid (GPL), trehalose 6,6'-dimycolate (TDM), and trehalose 6-monomycolate (TMM). We conducted the experiments with GPL, TDM, and TMM extracted from MAC, and human macrophages. The experimental results suggested that these bacterial cell wall lipids were associated with the pathophysiology of MAC pulmonary disease.
|
Free Research Field |
感染症
|
Academic Significance and Societal Importance of the Research Achievements |
日本において、肺非結核性抗酸菌症の罹患率は増加の一途をたどっており、肺非結核性抗酸菌症の内、肺MAC症が約90%を占めている。しかし、肺MAC症はその病態において依然不明な点が多い、診断が困難かつ、難治性の慢性呼吸器感染症である。本研究で、菌細胞壁脂質であるGPL、TDM、TMMの肺MAC症の病態への関与が示唆されたことから、今後、菌細胞壁脂質に着目した精度の高い検査法や治療効果の高い薬物が開発され、より良い肺MAC症診療が可能になることが期待される。
|