2019 Fiscal Year Final Research Report
Vaccine development utilizing gnotobiotic pig model for controlling viral gastroenteritis(Fostering Joint International Research)
Project/Area Number |
16KK0178
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Research Category |
Fund for the Promotion of Joint International Research (Fostering Joint International Research)
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Allocation Type | Multi-year Fund |
Research Field |
Hygiene and public health
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Research Institution | The University of Tokyo |
Principal Investigator |
Takanashi Sayaka 東京大学, 大学院医学系研究科(医学部), 助教 (20645709)
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Project Period (FY) |
2017 – 2019
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Keywords | 胃腸炎 / Gnotobiotic pig model / ロタウイルス / ワクチン / 栄養 / 腸内細菌叢 |
Outline of Final Research Achievements |
By using malnourished-human infant fecal microbiota transplanted neonatal pig models, we demonstrated that protein malnutrition hampered the efficacy of an oral attenuated human rotavirus vaccine by altering adaptive and innate immune responses. Our findings on lower level of IL-22 and higher amount of LPS in protein-deficient diet pigs would provide novel insights on intestinal membrane regeneration and possible interactions among nutrition, microbiota and host immunity.
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Free Research Field |
小児感染症
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Academic Significance and Societal Importance of the Research Achievements |
研究代表者が博士研究員として留学したネットワークを活かし、オハイオ州立大学で長年実績のあるgnotobiotic pigを用いて、日本で近々定期接種化が計画されているHRVワクチンの国際共同研究を行った。ヒト乳児由来糞便細菌叢移植gnotobiotic pigsの系は、腸内細菌叢、栄養と免疫との相互作用解明に有用な動物モデルであり、HRV感染症対策には、ワクチンの活用に加えて、衛生や栄養も考慮した包括的な取り組みが必要なことが示唆された。
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