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論文
- タイトル
- タイトル（英）
- Dipeptide repeat proteins are present in the p62 positive inclusions in patients with frontotemporal lobar degeneration and motor neurone disease associated with expansions in C9ORF72
- 参照URL
- https://researchmap.jp/masamisuzukake/published_papers/16528179
- 著者
- 著者（英）
- David M.A. Mann,Sara Rollinson,Andrew Robinson,Janis Bennion Callister,Jennifer C. Thompson,Julie S. Snowden,Tania Gendron,Leonard Petrucelli,Masami Masuda-Suzukake,Masato Hasegawa,Yvonne Davidson,Stuart Pickering-Brown
- 担当区分
- 概要
- 概要（英）
- Background: Cases of Frontotemporal Lobar Degeneration (FTLD) and Motor Neurone Disease (MND) associated with expansions in C9ORF72 gene are characterised pathologically by the presence of TDP-43 negative, but p62 positive, inclusions in granule cells of the cerebellum and in cells of dentate gyrus and area CA4 of the hippocampus. Results: We screened 84 cases of pathologically confirmed FTLD and 23 cases of MND for the presence of p62 positive inclusions in these three brain regions, and identified 13 positive cases of FTLD and 3 of MND. All cases demonstrated expansions in C9ORF72 by Southern blotting where frozen tissues were available. The p62 positive inclusions in both cerebellum and hippocampus were immunostained by antibodies to dipeptide repeat proteins (DPR), poly Gly-Ala (poly-GA), poly Gly-Pro (poly-GP) and poly Gly-Arg (poly-GR), these arising from a putative non-ATG initiated (RAN) sense translation of the GGGGCC expansion. There was also some slight, but variable, immunostaining with poly-AP antibody implying some antisense translation might also occur, though the relative paucity of immunostaining could reflect poor antigen avidity on the part of the antisense antibodies. Of the FTLD cases with DPR, 6 showed TDP-43 type A and 6 had TDP-43 type B histology one had FTLD-tau with the pathology of corticobasal degeneration. There were no qualitative or quantitative differences in the pattern of immunostaining with antibodies to DPR, or p62, proteins between TDP-43 type A and type B cases. Ratings for frequency of inclusions immunostained by these poly-GA, poly-GP and poly-GR antibodies broadly correlated with those for immunolabelled by p62 antibody in all three regions. Conclusion: We conclude that DPR are a major component of p62 positive inclusions in FTLD and MND.
- 出版者・発行元
- 出版者・発行元（英）
- BioMed Central Ltd.
- 誌名
- 誌名（英）
- Acta Neuropathologica Communications
- 巻
- 2
- 号
- 1
- 開始ページ
- 68
- 終了ページ
- 出版年月
- 2014年1月27日
- 査読の有無
- 査読有り
- 招待の有無
- 掲載種別
- 研究論文（学術雑誌）
- ISSN
- 2051-5960
- DOI URL
- https://doi.org/10.1186/20515960168
- 共同研究・競争的資金等の研究課題
研究者
鈴掛 雅美
(スズカケ マサミ)