相关实验视频

Updated: May 10, 2025

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Genetic Analysis of Hereditary Transthyretin Ala97Ser Related Amyloidosis

Published on: June 9, 2018

在ATTR Tyr114Cys氨基粉症中细胞内信号的动态变化

Kenta Ouchi¹, Takeshi Masuda², Kou Yonemaru¹

¹Department of Clinical Pharmaceutical Sciences, Graduate School of Pharmaceutical Sciences, Kumamoto University, 2-2-1 Honjo, Chuo Ward, Kumamoto City, Kumamoto Prefecture, 860-8556, Japan.

Biochemistry and biophysics reports

|April 25, 2025

概括

由Tyr114Cys突变引起的遗传性转基因氨基粉症 (ATTRv氨基粉症) 的预后不佳. 这项研究使用患者衍生细胞来揭示特定的分子变化和参与其致病发生的信号通路.

科学领域:

分子生物学分子生物学
遗传学是一个遗传学.
细胞生物学细胞生物学

背景情况:

遗传性转基因氨基粉症 (ATTRv氨基粉症) 是一种自体主导性疾病.
ATTR Tyr114Cys氨基粉症呈现出严重的预后和未知的分子病原体.
晶氨酸 (TTR) 突变驱动疾病,其中TTR Tyr114Cys特别具有攻击性.

研究的目的:

为了阐明ATTR Tyr114Cys amyloidosis的分子病原性.
为了确定ATTR Tyr114Cys amyloidosis中的特定细胞信号通路和蛋白质变化.
为了利用患者衍生的诱导多能干细胞用于疾病建模.

主要方法:

产生ATTR Tyr114Cys粉症特异性诱导多能干细胞 (iPSC).
将iPSCs分化为类似肝细胞的细胞 (HLC).
对Y114C-HLCs的蛋白质组分析与疾病控制V30M-HLCs相比.

主要成果:

在Y114C-HLCs中发现了特定的蛋白质和细胞内信号通路的改变.
检测到细胞应激反应和细胞外矩阵组织途径的显著激活.
由于特定的TTR点突变,证明了细胞反应的动态变化.

结论:

蛋白质组分析揭示了ATTR Tyr114Cys氨基粉症病原发生过程中涉及的特定细胞内信号.
这项研究是第一个报告ATTRv粉样化症突变特异性细胞反应的研究.
了解这些途径可能会导致针对ATTR Tyr114Cys Amyloidosis的向治疗策略.

关键词:

在ATTR的氨基粉症.诱导的多能干细胞干细胞蛋白质组分析蛋白质组分析转甲基素是一种转甲基素.

更多相关视频

Purification and Aggregation of the Amyloid Precursor Protein Intracellular Domain

Purification and Aggregation of the Amyloid Precursor Protein Intracellular Domain

Published on: August 28, 2012

Primary Cultures of Rat Astrocytes and Microglia and Their Use in the Study of Amyotrophic Lateral Sclerosis

Primary Cultures of Rat Astrocytes and Microglia and Their Use in the Study of Amyotrophic Lateral Sclerosis

Published on: June 23, 2022

相关概念视频

Intracellular Signaling Affects Focal Adhesions

Intracellular Signaling Affects Focal Adhesions

Integrins act both as extracellular input receivers and as intracellular processing activators. As their name suggests, integrins are entirely integrated into the membrane structure. Their hydrophobic membrane-spanning regions interact with the phospholipid bilayer's hydrophobic region. These membrane receptors provide extracellular attachment sites for effectors like hormones and growth factors. They activate intracellular response cascades when their effectors are bound and active.
Some...

Amyloid Fibrils

Amyloid Fibrils

Amyloid fibrils are aggregates of misfolded proteins. Under most circumstances, misfolded proteins are either refolded by chaperone proteins or degraded by the proteasome. However, in the case of a mutation or a disease, these proteins can accumulate to form large clusters and often further assemble to form elongated fibers, called fibrils.
Amyloid deposits were observed as early as 1639 in the liver and the spleen. In 1854, Rudolph Virchow performed iodine staining,...

Enzyme-linked Receptors

Enzyme-linked Receptors

Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...