TDP-43 stabilizes G3BP1 mRNA: relevance to amyotrophic lateral sclerosis/frontotemporal dementia.
TDP-43 stabilizes G3BP1 mRNA: relevance to amyotrophic lateral sclerosis/frontotemporal dementia.
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TDP-43稳定G3 BP 1 mRNA:与肌萎缩侧索硬化/额颞叶痴呆的相关性
DOI:
10.1093/brain/awab217
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发表时间:
2021-12-16
期刊:
影响因子:
--
通讯作者:
Vande Velde C
中科院分区:
文献类型:
--
作者:
Sidibé H;Khalfallah Y;Xiao S;Gómez NB;Fakim H;Tank EMH;Di Tomasso G;Bareke E;Aulas A;McKeever PM;Melamed Z;Destroimaisons L;Deshaies JE;Zinman L;Parker JA;Legault P;Tétreault M;Barmada SJ;Robertson J;Vande Velde C
TDP-43 nuclear depletion and concurrent cytoplasmic accumulation in vulnerable neurons is a hallmark feature of progressive neurodegenerative proteinopathies such as amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Cellular stress signalling and stress granule dynamics are now recognized to play a role in ALS/FTD pathogenesis. Defective stress granule assembly is associated with increased cellular vulnerability and death. Ras-GAP SH3-domain-binding protein 1 (G3BP1) is a critical stress granule assembly factor. Here, we define that TDP-43 stabilizes G3BP1 transcripts via direct binding of a highly conserved cis regulatory element within the 3ʹ untranslated region. Moreover, we show in vitro and in vivo that nuclear TDP-43 depletion is sufficient to reduce G3BP1 protein levels. Finally, we establish that G3BP1 transcripts are reduced in ALS/FTD patient neurons bearing TDP-43 cytoplasmic inclusions/nuclear depletion. Thus, our data indicate that, in ALS/FTD, there is a compromised stress granule response in disease-affected neurons due to impaired G3BP1 mRNA stability caused by TDP-43 nuclear depletion. These data implicate TDP-43 and G3BP1 loss of function as contributors to disease. Sidibé et al. show that TDP-43 stabilizes transcripts encoding the key stress granule protein G3BP1. G3BP1 transcript levels are reduced in the neurons of ALS/FTD patients, suggesting that a reduction in nuclear TDP-43 levels leads to a compromised stress granule response.
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DOI:
10.1093/bioinformatics/btu638
发表时间:
2015-01-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Anders S;Pyl PT;Huber W
通讯作者:
Huber W
影响因子:
15.1
作者:
Aulas A;Stabile S;Vande Velde C
通讯作者:
Vande Velde C
影响因子:
3.7
作者:
Fung G;Ng CS;Zhang J;Shi J;Wong J;Piesik P;Han L;Chu F;Jagdeo J;Jan E;Fujita T;Luo H
通讯作者:
Luo H
影响因子:
4.1
作者:
Costessi, Luisa;Porro, Fabiola;Muro, Andres F.
通讯作者:
Muro, Andres F.
影响因子:
14.9
作者:
Bailey TL;Boden M;Buske FA;Frith M;Grant CE;Clementi L;Ren J;Li WW;Noble WS
通讯作者:
Noble WS