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2016 Fiscal Year Final Research Report

Structure and dynamics of intermediate filament proteins

Research Project

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Project/Area Number 26293038
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypePartial Multi-year Fund
Section一般
Research Field General anatomy (including histology/embryology)
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Terada Sumio  東京医科歯科大学, 医歯(薬)学総合研究科, 教授 (00262022)

Co-Investigator(Kenkyū-buntansha) 川岸 将彦  東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (60323606)
齊藤 健太  東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (60374659)
佐藤 啓介  東京医科歯科大学, 医歯(薬)学総合研究科, 助教 (60644044)
Co-Investigator(Renkei-kenkyūsha) FUKUMA Takeshi  金沢大学, 理工学部, 教授 (90452094)
UESUGI Motonari  京都大学, 物質-細胞統合システム拠点, 教授 (10402926)
Research Collaborator TANI Tomomi  米国ウッズホール海洋生物学研究所, 研究員
SATO Fumiya  東京医科歯科大学, 大学院・医歯学総合研究科, 大学院学生
TAGUCHI Mie  東京医科歯科大学, 大学院・医歯学総合研究科, 医療技術職員
YUASA Mari  東京医科歯科大学, 生体材料工学研究所, 特任助教
KASAMA Kenji  東京医科歯科大学, 医歯学研究支援センター, 准教授
KOHDA Takashi  東京医科歯科大学, 難治疾患研究所, 准教授
Project Period (FY) 2014-04-01 – 2017-03-31
Keywords細胞骨格 / 中間径フィラメント
Outline of Final Research Achievements

In this study, we applied the modified ‘cells on glass sandwich’ method to exteriorize intracellular neurofilaments, reducing the risk of causing artefacts through sample preparation. The observed thin filaments, considered to retain native structures of the neurofilaments, exhibited an approximate periodicity of 50-60 nm along their length. Our success of semi- in situ atomic force microscopy of exposed bona fide assembled neurofilaments through separating the sandwich suggests that it can be an effective and alternative method for investigating cytoplasmic intermediate filaments under physiological conditions by atomic force microscopy. In addition, we could develop new methods to label cytoskeletal proteins for fluorescent polarization microscopic analysis.

Free Research Field

解剖学、細胞生物学

URL: 

Published: 2018-03-22  

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