Imaging and quantification of amyloid fibrillation in the cell nucleus.
Imaging and quantification of amyloid fibrillation in the cell nucleus.
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细胞核中淀粉样纤维颤动的成像和定量
DOI:
10.1007/978-1-4939-1680-1_15
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发表时间:
2015
影响因子:
--
通讯作者:
von Mikecz A
中科院分区:
文献类型:
--
作者:
Arnhold F;Scharf A;von Mikecz A
Xenobiotics, as well as intrinsic processes such as cellular aging, contribute to an environment that constantly challenges nuclear organization and function. While it becomes increasingly clear that proteasome-dependent proteolysis is a major player, the topology and molecular mechanisms of nuclear protein homeostasis remain largely unknown. We have shown previously that (1) proteasome-dependent protein degradation is organized in focal microenvironments throughout the nucleoplasm and (2) heavy metals as well as nanoparticles induce nuclear protein fibrillation with amyloid characteristics. Here, we describe methods to characterize the landscape of intranuclear amyloid on the global and local level in different systems such as cultures of mammalian cells and the soil nematodeCaenorhabditis elegans. Application of discrete mathematics to imaging data is introduced as a tool to develop pattern recognition of intracellular protein fibrillation. Since stepwise fibrillation of otherwise soluble proteins to insoluble amyloid-like protein aggregates is a hallmark of neurodegenerative protein-misfolding disorders including Alzheimer’s disease, CAG repeat diseases, and the prion encephalopathies, investigation of intracellular amyloid may likewise aid to a better understanding of the pathomechanisms involved. We consider aggregate profiling as an important experimental approach to determine if nuclear amyloid has toxic or protective roles in various disease processes.
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影响因子:
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作者:
Erich E. Wanker;Eberhard Scherzinger;Volker Heiser;A. Sittler;Holger Eickhoff;H. Lehrach
通讯作者:
H. Lehrach
DOI:
10.1007/978-1-62703-438-8_1
发表时间:
2013
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
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作者:
Tsvetkov,AndreyS;Ando,DMichael;Finkbeiner,Steven
通讯作者:
Finkbeiner,Steven
DOI:
10.1007/978-1-62703-640-5_2
发表时间:
2013
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Kovalevich, Jane;Langford, Dianne
通讯作者:
Langford, Dianne
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
V. Uversky;Y. Lyubchenko
通讯作者:
Y. Lyubchenko
影响因子:
--
作者:
A. von Mikecz;A. Scharf
通讯作者:
A. Scharf