2022 Fiscal Year Final Research Report
Elucidation of Age-Related Changes in Enteroendocrine Cell Subtype Composition and Their Regulatory Mechanisms
Project/Area Number |
20K16143
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Research Category |
Grant-in-Aid for Early-Career Scientists
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Allocation Type | Multi-year Fund |
Review Section |
Basic Section 48040:Medical biochemistry-related
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Research Institution | Kyoto University |
Principal Investigator |
Nakajima-Koyama May (中島明) 京都大学, iPS細胞研究所, 特別研究員(RPD) (80868026)
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Keywords | 幹細胞 / 小腸 / 加齢 / 老化 / オルガノイド / 腸内分泌 / トランスクリプトーム解析 / シグナル伝達 |
Outline of Final Research Achievements |
In this study, we conducted histological analysis and comprehensive gene expression analysis using naturally aged mice to investigate the effects of aging on various intestinal epithelial cell types, including enteroendocrine cells. As a result, we revealed changes in cellular composition and cell type-specific gene expression alterations associated with aging. Furthermore, we identified multiple signaling pathways that regulate the aging-related changes in intestinal epithelium. Based on these findings, we successfully established an in vitro intestinal organoid culture system that mimics the aging changes in the small intestine.
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Free Research Field |
幹細胞
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Academic Significance and Societal Importance of the Research Achievements |
本研究により、小腸上皮の加齢変化を制御するメカニズムの一端を解明することができた。さらに、小腸上皮の加齢変化が代謝異常の要因となる可能性が示唆された。この研究成果が、加齢性代謝疾患の予防法・治療法の開発につながることが期待される。さらに、in vitroにおいて小腸上皮の加齢変化を模倣する小腸オルガノイド培養系の構築に成功したことから、臓器老化研究におけるオルガノイド培養系の有用性が示され、本研究成果が、健康長寿社会の実現に貢献できると期待される。
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