2021 Fiscal Year Final Research Report
Examination of the inhibitory effect of H. suis-infected gastric MALT lymphoma formation using an immune checkpoint inhibitor
Project/Area Number |
19K07553
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Review Section |
Basic Section 49050:Bacteriology-related
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Research Institution | Hokkaido University |
Principal Investigator |
Yamamoto Koji 北海道大学, 医学研究院, 特任助教 (70608322)
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Project Period (FY) |
2019-04-01 – 2022-03-31
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Keywords | H. suis感染症 / 胃MALTリンパ腫 / 免疫チェックポイント阻害剤 / B細胞 / T細胞 |
Outline of Final Research Achievements |
Helicobacter suis (H. suis) is a causative agent of zoonotic infections and is implicated in gastric MALT lymphoma. Recently, the use of immune checkpoint inhibitors has been known to exert an antitumor effect. In this study, we found that treatment with an immune checkpoint inhibitor significantly reduced gastric MALT lymphoma formation in H. suis-infected mice. In the future, the relationship between gastric MALT lymphoma formation and immune chuck point-related gene expression will be clarified, and the utility of immune chuck point inhibitors for human MALT lymphoma patients is expected.
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Free Research Field |
感染症と粘膜免疫学
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Academic Significance and Societal Importance of the Research Achievements |
H. suis感染胃MALTリンパ腫形成メカニズムは未だ詳細に検討されておらず不明な点も多い。本研究成果では、免疫チェックポイント阻害薬の投与がH. suis感染胃MALTリンパ腫形成に有用な治療薬の候補であることが明らかとなった。今後、これまで明らかにされていない胃MALTリンパ腫形成と免疫チャックポイント関連遺伝子発現との関連性が明らかになるばかりでなく、ヒトMALTリンパ腫患者に対する免疫チャックポイント阻害剤の有用性が期待され、学術的独自性、ならびに、創造性の高い研究であると考えられる。
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