Amyloid fibrils in FTLD-TDP are composed of TMEM106B and not TDP-43.
Amyloid fibrils in FTLD-TDP are composed of TMEM106B and not TDP-43.
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DOI:
10.1038/s41586-022-04670-9
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发表时间:
2022-05
期刊:
影响因子:
64.8
通讯作者:
中科院分区:
文献类型:
--
作者:
Frontotemporal lobar degeneration (FTLD) is the third most common neurodegenerative condition, following only Alzheimer’s and Parkinson’s diseases. FTLD typically presents in 45–64-year-olds with behavioral changes or progressive decline of language skills. The subtype FTLD-TDP is characterized by certain clinical symptoms and pathological neuronal inclusions detected by TAR DNA-binding protein (TDP-43) immunoreactivity. Here, we extracted amyloid fibrils from brains of four patients, representing four out of five FTLD-TDP subclasses and determined their near-atomic resolution structures by cryogenic electron-microscopy (cryo-EM). Unexpectedly, all amyloid fibrils examined are composed of a 135-residue C-terminal fragment of transmembrane protein 106B (TMEM106B), a lysosomal membrane protein previously implicated as a genetic risk factor for FTLD-TDP. In addition to TMEM106B fibrils, abundant non-fibrillar aggregated TDP-43 is present, as revealed by immunogold labeling. Our observations confirm that FTLD-TDP is an amyloid-involved disease and suggest that amyloid involvement in FTLD-TDP is of protein TMEM106B, rather than of TDP-43.
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影响因子:
64.8
作者:
Arseni D;Hasegawa M;Murzin AG;Kametani F;Arai M;Yoshida M;Ryskeldi-Falcon B
通讯作者:
Ryskeldi-Falcon B
影响因子:
4.7
作者:
Nicholson, Alexandra M.;Finch, NiCole A.;Rademakers, Rosa
通讯作者:
Rademakers, Rosa
DOI:
10.1107/s2059798318006551
发表时间:
2018-06-01
期刊:
Acta crystallographica. Section D, Structural biology
影响因子:
--
作者:
Afonine PV;Poon BK;Read RJ;Sobolev OV;Terwilliger TC;Urzhumtsev A;Adams PD
通讯作者:
Adams PD
影响因子:
1.2
作者:
Goldman, JS;Farmer, JM;Grossman, M
通讯作者:
Grossman, M
DOI:
10.1107/s0907444909042073
发表时间:
2010-01
期刊:
Acta crystallographica. Section D, Biological crystallography
影响因子:
--
作者:
Chen VB;Arendall WB 3rd;Headd JJ;Keedy DA;Immormino RM;Kapral GJ;Murray LW;Richardson JS;Richardson DC
通讯作者:
Richardson DC