著者 成島 道樹| 小林 直哉| 興津 輝| 田中 斎仁| 李 順愛| 陳 勇| 三木 厚| 田中 公章| 中路 修平| 竹居 孝二| Alejandro, Soto Gutierrez| Jorge, David Rivas-Carrillo| Nalu, Navarro-Alvarez| Hee-Sook, Jun| Karen, A Westerman| 野口 洋文| Jonathan, R T Lakey| Philippe, Leboulch| 田中 紀章| Ji-Won, Yoon|
発行日 2007-05-01
出版物タイトル 岡山医学会雑誌
119巻
1号
資料タイプ 学術雑誌論文
著者 田邊 賢司| 竹居 孝二|
発行日 2010-08-02
出版物タイトル 岡山医学会雑誌
122巻
2号
資料タイプ 学術雑誌論文
著者 山田 浩司| Padilla-Parra, Sergi| 朴 宣奏| 伊藤 俊樹| Chaineau, Mathilde| Monaldi, Ilaria| Cremona, Ottavio| Benfenati, Fabio| Camilli, Pietro De| Coppey-Moisan, Maïté| Tramier, Marc| Galli, Thierry| 竹居 孝二|
発行日 2011-04-01
出版物タイトル 岡山医学会雑誌
123巻
1号
資料タイプ 学術雑誌論文
JaLCDOI 10.18926/AMO/48557
フルテキストURL 66_3_183.pdf
著者 Tanabe, Kenji| Takei, Kohji|
抄録 Charcot-Marie-Tooth disease (CMT) is an inherited neuronal disorder, and is induced by mutations of various genes associated with intracellular membrane traffic and cytoskeleton. A large GTPase, dynamin, which is known as a fission protein for endocytic vesicles, was identified as a gene responsible for dominant-intermediate CMT type 2B (DI-CMT2B). Of these mutants, the PH domain, which is required for interaction with phosphoinositides, was mutated in several families. Interestingly, the expression of a deletion mutant, 551Δ3, did not impair endocytosis, but induced abnormal accumulation of microtubules. Recent evidence has shown that dynamin 2 regulates the dynamic instability of microtubules, and 551Δ3 lacks this function. We propose a model for the regulation of the dynamic instability of microtubules by dynamin 2 and discuss the relationship between dynamin 2 and CMT.
キーワード neuropathy Charcot-Marie-Tooth disease membrane traffic dynamin microtubules
Amo Type Review
発行日 2012-06
出版物タイトル Acta Medica Okayama
66巻
3号
出版者 Okayama University Medical School
開始ページ 183
終了ページ 190
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
著作権者 CopyrightⒸ 2012 by Okayama University Medical School
論文のバージョン publisher
査読 有り
PubMed ID 22729098
Web of Sience KeyUT 000305669700001
JaLCDOI 10.18926/AMO/30954
フルテキストURL fulltext.pdf
著者 Nakanishi, Akira| Abe, Tadashi| Watanabe, Masami| Takei, Kohji| Yamada, Hiroshi|
抄録 <p>Testicular Sertoli cells highly express dynamin 2 and amphiphysin 1. Here we demonstrate that dynamin 2 is implicated in phosphatidylserine (PS)-dependent phagocytosis in Sertoli cells. Immunofluorescence and dual-live imaging revealed that dynamin 2 and amphiphysin 1 accumulate simultaneously at ruffles. These proteins are specifically bound <i>in vitro</i>. Over-expression of dominant negative dynamin 2 (K44A) inhibits liposome-uptake and leads to the mis-localization of amphiphysin 1. Thus, the cooperative function of dynamin 2 and amphiphysin 1 in PS-dependent phagocytosis is strongly suggested.</p>
キーワード dynamin amphiphysin phagocytosis testis
Amo Type Original Article
発行日 2008-12
出版物タイトル Acta Medica Okayama
62巻
6号
出版者 Okayama University Medical School
開始ページ 385
終了ページ 391
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
Web of Sience KeyUT 000262025000005
JaLCDOI 10.18926/AMO/32823
フルテキストURL fulltext.pdf
著者 Nakanishi, Akira| Kinuta, Keiko| Abe, Tadashi| Araki, Kenta| Yoshida, Yumi| Liang, Shuang| Li, Shun-Ai| Takei, Kohji| Kinuta, Masahiro|
抄録 <p>Administration of phenylhydrazine to rabbits resulted in the denaturation of hemoglobins in erythrocytes, causing the formation of intracellular precipitates known as Heinz bodies, severe hemolytic anemia, and reticulocytosis. To elucidate the molecular mechanism of the destabilization, we allowed human oxyhemoglobins to react aerobically with phenylhydrazine. After treatment with acetic acid/HCl and H2SO4/methanol, the chloroform extract contained blue-green pigments of major products accompanied by different minor products. Each product was isolated by column chromatography. By fast-atom-bombardment mass spectrometry (FAB-MS) and proton nuclear magnetic resonance (1H-NMR) spectrometry, dimethyl esters of N-phenylprotoporphyrin IX and meso, N-diphenylprotoporphyrin IX were determined. Other major products also were determined to be dimethyl esters of triphenyl-and tetraphenyl-substituted protoporphyrins by FAB-MS. The formation of meso, N-diphenylprotoporphyrin indicated that the addition of a phenyl radical to the meso-carbon atom of the protoporphyrin ring occurred. Triphenyl and tetraphenyl adducts also indicated the formation of phenyl radicals in the aerobic reaction of phenylhydrazine with oxyhemoglobins. From these results, we suggest that the formation of phenyl radicals and the replacement of heme with phenyl-substituted protoporphyrins cause the destabilization of hemoglobins to induce Heinz bodies and hemolytic anemia with phenylhydrazine.</p>
キーワード phenylhydrazine hemoglobin protoporphyrin fast-atom-bombardment mass spectrometry(FAB-MS) proton nuclear magnetic resonance(H-NMR)spectrometry
Amo Type Article
発行日 2003-10
出版物タイトル Acta Medica Okayama
57巻
5号
出版者 Okayama University Medical School
開始ページ 249
終了ページ 256
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 14679403
Web of Sience KeyUT 000186186000006