著者
Fujita Mari Sasanuma Hiroyuki Yamamoto Kimiyo N. Harada Hiroshi Kurosawa Aya Adachi Noritaka Omura Masato Hiraoka Masahiro Takeda Shunichi Hirota Kouji
出版者
Public Library of Science
雑誌
PLoS ONE (ISSN:19326203)
巻号頁・発行日
vol.8, no.4, 2013-04-03
被引用文献数
19

DNAが切れていないのに発生する染色体断裂の発見 -ヒトの被爆線量を測定する手法に異議あり-. 京都大学プレスリリース. 2013-04-04.
著者
Uemura Norihito Koike Masato Ansai Satoshi Kinoshita Masato Ishikawa-Fujiwara Tomoko Matsui Hideaki Naruse Kiyoshi Sakamoto Naoaki Uchiyama Yasuo Todo Takeshi Takeda Shunichi Yamakado Hodaka Takahashi Ryosuke
出版者
Public Library of Science
雑誌
PLOS genetics (ISSN:15537404)
巻号頁・発行日
vol.11, no.4, 2015-04-02
被引用文献数
59

パーキンソン病の解明に役立つメダカの作製に成功 -メダカが神経変性疾患の研究に貢献できる可能性- 京都大学プレスリリース. 2015-04-09.Homozygous mutations in the glucocerebrosidase (GBA) gene result in Gaucher disease (GD), the most common lysosomal storage disease. Recent genetic studies have revealed that GBA mutations confer a strong risk for sporadic Parkinson's disease (PD). To investigate how GBA mutations cause PD, we generated GBA nonsense mutant (GBA-/-) medaka that are completely deficient in glucocerebrosidase (GCase) activity. In contrast to the perinatal death in humans and mice lacking GCase activity, GBA-/- medaka survived for months, enabling analysis of the pathological progression. GBA-/- medaka displayed the pathological phenotypes resembling human neuronopathic GD including infiltration of Gaucher cell-like cells into the brains, progressive neuronal loss, and microgliosis. Detailed pathological findings represented lysosomal abnormalities in neurons and alpha-synuclein (α-syn) accumulation in axonal swellings containing autophagosomes. Unexpectedly, disruption of α-syn did not improve the life span, formation of axonal swellings, neuronal loss, or neuroinflammation in GBA-/- medaka. Taken together, the present study revealed GBA-/- medaka as a novel neuronopathic GD model, the pahological mechanisms of α-syn accumulation caused by GCase deficiency, and the minimal contribution of α-syn to the pathogenesis of neuronopathic GD.
著者
Ninagawa Satoshi Okada Tetsuya Sumitomo Yoshiki Kamiya Yukiko Kato Koichi Horimoto Satoshi Ishikawa Tokiro Takeda Shunichi Sakuma Tetsushi Yamamoto Takashi Mori Kazutoshi
出版者
Rockefeller University Press
雑誌
The Journal of cell biology (ISSN:15408140)
巻号頁・発行日
vol.206, no.3, pp.347-356, 2014-08-04
被引用文献数
126

構造異常糖タンパク質の分解に必須な糖鎖刈り込み機構を解明 -最新ゲノム編集解析により醜いアヒルの子が美しい白鳥に変身-. 京都大学プレスリリース. 2014-09-02.