Establishment of a simple and rapid method for assessing amyloid polymorphism for pathophysiological diagnosis
Project/Area Number |
20K21396
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Research Category |
Grant-in-Aid for Challenging Research (Exploratory)
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Allocation Type | Multi-year Fund |
Review Section |
Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
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Research Institution | Kobe University |
Principal Investigator |
Chatani Eri 神戸大学, 理学研究科, 准教授 (00432493)
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Project Period (FY) |
2020-07-30 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥6,370,000 (Direct Cost: ¥4,900,000、Indirect Cost: ¥1,470,000)
Fiscal Year 2022: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2021: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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Keywords | 蛋白質 / ミスフォールディング / アミロイド / 多形 |
Outline of Research at the Start |
一種類のタンパク質から様々なアミロイド線維構造が形成するという「アミロイド多形」は、アミロイドーシスにおいて異なる病態や感染性をもたらすと考えられる。しかし、これを簡便かつ鋭敏に識別できる手法は十分に確立されていない。そこで本研究では、アミロイド線維がヨウ素で染まる現象に着眼し、ヨウ素をプローブとしてアミロイド多形を評価する方法を構築する。さらにこれを利用し、アミロイド多形の毒性への関わりと感染時の構造伝播の様子を調べる。同時に、病態診断への応用も目指してアミロイド多形のイメージングにも挑戦する。
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Outline of Final Research Achievements |
This study has been conducted aiming to construct a simple and rapid method for identifying amyloid polymorphism. Through the analysis of insulin amyloid fibrils, we have demonstrated that iodine staining is useful for distinguishing amyloid polymorphs. Furthermore, as an application example of this method, we tracked the preservation and changes of the structure of amyloid fibrils during seeding reactions. We also tried iodine staining of multiple types of amyloid fibrils and confirmed the applicability of iodine staining to a wide range of proteins.
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Academic Significance and Societal Importance of the Research Achievements |
アミロイド多形は、異なる病態や感染性をもたらす構造的な要因であることが指摘されているものの、迅速かつ鋭敏に識別する方法は見出されていなかった。ヨウ素染色はアミロイド線維の構造多形を幅広く識別することが示されたことから、現状を打開し、アミロイド研究での活用だけでなく新たな病態診断法への展開が期待される。
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Report
(4 results)
Research Products
(80 results)
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[Journal Article] Cooperative Optical Trapping of Polystyrene Microparticle and Protein Forming a Submillimeter Linear Assembly of Microparticle2021
Author(s)
Po-Wei Yi,Wei-Hsiang Chiu,Tetsuhiro Kudo,Teruki Sugiyama,Roger Bresoli-Obach,Johan Hofkens,Eri Chatani,Ryohei Yasukuni,Yoichiroh Hosokawa,Shuichi Toyouchi,Hiroshi Masuhara
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Journal Title
J. Phys. Chem. C
Volume: 125
Issue: 34
Pages: 18988-18999
DOI
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Journal Article] Breakdown of supersaturation barrier links protein folding to amyloid formation.2021
Author(s)
Masahiro Noji,Tatsushi Samejima,Keiichi Yamaguchi,Masatomo So,Keisuke Yuzu,Eri Chatani,Yoko Akazawa-Ogawa,Yoshihisa Hagihara,Yasushi Kawata,Kensuke Ikenaka,Hideki Mochizuki,Jozsef Kardos,Daniel E Otzen,Vittorio Bellotti,Johannes Buchner,Yuji Goto
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Journal Title
Communications biology
Volume: 4
Issue: 1
Pages: 120-120
DOI
NAID
Related Report
Peer Reviewed / Open Access / Int'l Joint Research
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[Presentation] Optically Evolved Condensation of Lysozyme Study by Raman Microspectroscopy2021
Author(s)
Po-Wei Yi,Wei-Hsiang Chiu,Tetsuhiro Kudo,Roger Bresoli-Obach,Johan Hofkens,Eri Chatani,Ryohei Yasukuni,Yoichiroh Hosokawa,Teruki Sugiyama,Shuichi Toyouchi,Hiroshi Masuhara
Organizer
第82回応用学会秋季学術講演会
Related Report
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[Presentation] Optical force-induced three-dimensional protein assembly growing from solution2021
Author(s)
Roger Bresoli-Obach,Po-Wei Y,Wei-Hsiang Chiu,Tetsuhiro Kudo,Johan Hofkens,Eri Chatani,Ryohei Yasukuni,Yoichiroh Hosokawa,Teruki Sugiyama,Shuichi Toyouchi,Hiroshi Masuhara
Organizer
19th Congress of the European Society for Photobiology
Related Report
Int'l Joint Research
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[Presentation] Optical force-induced three-dimensional protein assembly growing from solution surface2021
Author(s)
Po-Wei Yi,Wei-Hisang Chiu,Tetsuhiro Kudo,Roger Bresoli-Obach,Johan Hofkens,Eri Chatani,Ryohei Yasukuni,Yoichiroh Hosokawa,Teruki Sugiyama,Shuichi Toyouchi,Hiroshi Masuhara
Organizer
International Conference on Photochemistry 2021
Related Report
Int'l Joint Research
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[Presentation] Single Sub-Millimeter Linear Assembly of Polystyrene Microparticles2021
Author(s)
Po-Wei. Yi,Wei-Hsiang Chiu,Tetsuhiro Kudo,Roger Bresoli-Obach,Johan Hofkens,Eri Chatani,Ryohei Yasukuni,Yoichiroh Hosokawa,Teruki Sugiyama,Shuichi Toyouchi,Hiroshi Masuhara
Organizer
第68回応用物理学会春季学術講演会
Related Report
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