Nucleolar stress in C9orf72 and sporadic ALS spinal motor neurons precedes TDP-43 mislocalization.
Nucleolar stress in C9orf72 and sporadic ALS spinal motor neurons precedes TDP-43 mislocalization.
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DOI:
10.1186/s40478-021-01125-6
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发表时间:
2021-02-15
影响因子:
7.1
通讯作者:
Ravits J
中科院分区:
文献类型:
--
作者:
Aladesuyi Arogundade O;Nguyen S;Leung R;Wainio D;Rodriguez M;Ravits J
Nucleolar stress has been implicated in the pathology and disease pathogenesis of amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) from repeat expansions of GGGGCC in C9orf72 (C9-ALS/FTLD) but not in sporadic ALS (SALS). Previously we reported that antisense RNA transcripts are unique in C9-ALS because of their nucleolar localization in spinal motor neurons and correlation with TDP-43 mislocalization, the hallmark proteinopathy of ALS and FTLD. Here we report our further studies of 11 SALS, 11 C9-ALS and 11 control spinal cords. We find that nucleolar stress manifests specifically as shrinkage in nucleoli of C9-ALS spinal motor neurons. Nucleolar size reduction is greatest in similarly sized alpha motor neurons from C9-ALS cases and results are not skewed by the number of surviving neurons from each ALS spinal cord. Surprisingly, nucleolar shrinkage occurs before main pathological hallmarks—TDP-43 mislocalization or antisense RNA foci—appear and this suggest that nucleolar stress can precede pathology in C9-ALS, findings previously identified in C9-FTLD using sense RNA foci and dipeptide repeat proteins as pathological markers. Importantly, these observations are also seen in SALS motor neurons and thus nucleolar stress appears to be a significant and probably upstream problem in sporadic disease.
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影响因子:
17.1
作者:
Burberry A;Suzuki N;Wang JY;Moccia R;Mordes DA;Stewart MH;Suzuki-Uematsu S;Ghosh S;Singh A;Merkle FT;Koszka K;Li QZ;Zon L;Rossi DJ;Trowbridge JJ;Notarangelo LD;Eggan K
通讯作者:
Eggan K
DOI:
10.1126/science.1254917
发表时间:
2014-09-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Kwon I;Xiang S;Kato M;Wu L;Theodoropoulos P;Wang T;Kim J;Yun J;Xie Y;McKnight SL
通讯作者:
McKnight SL
影响因子:
3.7
作者:
Liu-Yesucevitz L;Bilgutay A;Zhang YJ;Vanderweyde T;Citro A;Mehta T;Zaarur N;McKee A;Bowser R;Sherman M;Petrucelli L;Wolozin B
通讯作者:
Wolozin B
DOI:
10.1083/jcb.201302044
发表时间:
2013-04-29
期刊:
The Journal of cell biology
影响因子:
--
作者:
Li YR;King OD;Shorter J;Gitler AD
通讯作者:
Gitler AD
影响因子:
12.7
作者:
Cooper-Knock J;Higginbottom A;Stopford MJ;Highley JR;Ince PG;Wharton SB;Pickering-Brown S;Kirby J;Hautbergue GM;Shaw PJ
通讯作者:
Shaw PJ