Neuron type-specific increase in lamin B1 contributes to nuclear dysfunction in Huntington's disease.
Neuron type-specific increase in lamin B1 contributes to nuclear dysfunction in Huntington's disease.
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神经元类型特异性核纤层蛋白B1增加导致亨廷顿病的核功能障碍
DOI:
10.15252/emmm.202012105
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发表时间:
2021-02-05
影响因子:
11.1
通讯作者:
Pérez-Navarro E
中科院分区:
文献类型:
--
作者:
Alcalá-Vida R;Garcia-Forn M;Castany-Pladevall C;Creus-Muncunill J;Ito Y;Blanco E;Golbano A;Crespí-Vázquez K;Parry A;Slater G;Samarajiwa S;Peiró S;Di Croce L;Narita M;Pérez-Navarro E
Lamins are crucial proteins for nuclear functionality. Here, we provide new evidence showing that increased lamin B1 levels contribute to the pathophysiology of Huntington’s disease (HD), a CAG repeat‐associated neurodegenerative disorder. Through fluorescence‐activated nuclear suspension imaging, we show that nucleus from striatal medium‐sized spiny and CA1 hippocampal neurons display increased lamin B1 levels, in correlation with altered nuclear morphology and nucleocytoplasmic transport disruption. Moreover, ChIP‐sequencing analysis shows an alteration of lamin‐associated chromatin domains in hippocampal nuclei, accompanied by changes in chromatin accessibility and transcriptional dysregulation. Supporting lamin B1 alterations as a causal role in mutant huntingtin‐mediated neurodegeneration, pharmacological normalization of lamin B1 levels in the hippocampus of the R6/1 mouse model of HD by betulinic acid administration restored nuclear homeostasis and prevented motor and cognitive dysfunction. Collectively, our work points increased lamin B1 levels as a new pathogenic mechanism in HD and provides a novel target for its intervention. The study shows that increased lamin B1 levels contribute to altered nuclear function of specific neurons in Huntington's disease (HD) brain. Results highlight this alteration as a new pathogenic mechanism for HD and provide a novel target for HD intervention.
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影响因子:
3.3
作者:
Gratacòs, E;Checa, N;Alberch, J
通讯作者:
Alberch, J
影响因子:
2.9
作者:
Francelle L;Lotz C;Outeiro T;Brouillet E;Merienne K
通讯作者:
Merienne K
影响因子:
3.3
作者:
Freund A;Laberge RM;Demaria M;Campisi J
通讯作者:
Campisi J
DOI:
10.1083/jcb.123.6.1671
发表时间:
1993-12
期刊:
The Journal of cell biology
影响因子:
--
作者:
Belmont AS;Zhai Y;Thilenius A
通讯作者:
Thilenius A
影响因子:
11.4
作者:
Barascu, Aurelia;Le Chalony, Catherine;Bertrand, Pascale
通讯作者:
Bertrand, Pascale