Human milk oligosaccharides as the bifidus factor: the mechanism underlying how bifidus flora is established in infant guts
Project/Area Number |
15H04481
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Applied microbiology
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Research Institution | Kyoto University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
日高 將文 東北大学, 農学研究科, 助教 (00584848)
栗原 新 石川県立大学, 生物資源環境学部, 寄附講座准教授 (20630966)
廣瀬 潤子 滋賀県立大学, 人間文化学部, 准教授 (40381917)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥10,790,000 (Direct Cost: ¥8,300,000、Indirect Cost: ¥2,490,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
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Keywords | 母乳オリゴ糖 / ビフィズス菌 / 共生 / 共進化 / 母乳 / 酵素解析 / 酵素合成 / 酵素 |
Outline of Final Research Achievements |
It has long been known that bifidobaceria-rich microbiota (bifidus flora) is formed in breast-fed infant intestines; however the underlying mechanism has not been elucidated. We have found that infant gut-associated bifidobacteria have an ability to assimilate human milk oligosaccharides (HMOs) that comprises the third most abundant solid component. In this study, we focused on lacto-N-biosidase, which hydrolyzes lacto-N-tetraose (the most abundant core HMO structure ), and revealed that the enzyme plays an important role in bifidus flora formation in infants. In addition, we succeeded in developing an efficient method to synthesize lacto-N-tetraose by mutating a relevant enzyme. The compound can be used for formula milk fortification.
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Report
(4 results)
Research Products
(35 results)
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[Journal Article] Molecular Insight into Evolution of Symbiosis between Breast-Fed Infants and a Member of the Human Gut Microbiome Bifidobacterium longum2017
Author(s)
Yamada C, Gotoh A, Sakanaka M, Hattie M, Stubbs KA, Katayama-Ikegami A, Hirose J, Kurihara S, Arakawa T, Kitaoka M, Okuda S, Katayama T and Fushinobu S.
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Journal Title
Cell Chemical Biology
Volume: 24
Issue: 4
Pages: 515-524
DOI
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Molecular insight into evolution of symbiosis between breast-fed infants and a member of the human gut microbiome Bifidobacterium longum2017
Author(s)
Yamada C, Gotoh A, Sakanaka M, Hattie M, Stubbs KA, Katayama-Ikegami A, Hirose J, Kurihara S, Arakawa T, Kitaoka M, Okuda S, Katayama T, and Fushinobu S.
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Journal Title
Cell Chemical Biology
Volume: 印刷中
Related Report
Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
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[Journal Article] Application study of 1,2-α-L-fucosynthase: Introduction of Fucα1-2Gal disaccharide structures on N-glycan, ganglioside, and xyloglucan oligosaccharide2016
Author(s)
Sugiyama Y, Katoh T, Honda Y, Gotoh A, Ashida H, Kurihara S, Yamamoto K, and Katayama T.
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Journal Title
Bioscience, Biotechnology, and Biochemistry
Volume: 81
Issue: 2
Pages: 283-291
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Introduction of H-antigens into oligosaccharides and sugar chains of glycoproteins using highly efficient 1,2-α-L-fucosynthase2016
Author(s)
Sugiyama Y, Gotoh A, Katoh T, Honda Y, Yoshida E, Kurihara S, Ashida H, Kumagai H, Yamamoto K, Kitaoka M, and Katayama T.
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Journal Title
Glycobiology
Volume: 26
Pages: 1235-1247
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Novel substrate specificities of two lacto-N-biosidases towards β-linked galacto-N-biose-containing oligosaccharides of globo H, Gb5, and GA1.2015
Author(s)
Gotoh A, Katoh T, Sugiyama Y, Kurihara S, Honda Y, Sakurama H, Kambe T, Ashida H, Kitaoka M, Yamamoto K, Katayama T
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Journal Title
Carbohydr Res
Volume: 408
Pages: 18-24
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Presentation] Physiological characterization of 2’-fucosyllactose transport systems from Bifidobacterium longum subsp. infantis2016
Author(s)
Sakanaka, M., Yachi, H., Kurihara, S., Fukiya, S., Yokota, A., Katayama, T.
Organizer
Probio-Bifido 2016
Place of Presentation
Cork, Ireland
Year and Date
2016-09-25
Related Report
Int'l Joint Research
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