相关实验视频

Updated: Jul 18, 2025

High-throughput Screening for Protein-based Inheritance in S. cerevisiae

High-throughput Screening for Protein-based Inheritance in S. cerevisiae

Published on: August 8, 2017

开发一种用于生物和结构研究的大规模生产子的方法

Luis Concha-Marambio^1,2, Fei Wang¹, Enrique Armijo¹

¹Department of Neurology, Mitchell Center for Alzheimer's Disease and Related Brain Disorders, University of Texas Health Science Center at Houston McGovern Medical School, Houston, TX, United States.

Frontiers in molecular biosciences

|August 28, 2023

概括

大规模的蛋白质错折循环放大 (LS-PMCA) 迅速产生传染性子. 这种可适应生物反应器的新方法允许持续生产用于关键研究的子.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
传染性疾病传染性疾病

背景情况:

子病源于正常的子蛋白 (PrP^C) 错误折叠成传染性PrP^Sc.
PrP^Sc复制发生在没有核酸的情况下,但转化机制仍然不清楚.
缺乏结构数据和可靠的体外系统阻碍了子研究.

研究的目的:

适应蛋白质错误折叠循环放大 (PMCA) 进行大规模,高效的子生成.
开发用于研究的连续子生产系统.

主要方法:

适应PMCA进行大规模子传播 (LS-PMCA),增加反应体积高达1000倍.
测试了LS-PMCA与各种菌株 (老鼠,仓鼠,鹿类,人类) 和物种.
开发了一个生物反应器格式,用于连续,无限制的PrP^Sc生产.

主要成果:

LS-PMCA有效地传播传染性子,保持菌株特征.
该方法在各种类型和物种中显示出广泛的适用性.
生物反应器每天可以产生相当于25只末期感染动物的子量.

结论:

LS-PMCA提供了一个可扩展和高效的方法来产生传染性子.
生物反应器格式使PrP^Sc的连续,大规模生产成为可能.
这项技术为子的结构和生物研究提供了有价值的工具.

关键词:

克鲁茨菲尔特 - 雅各布疾病慢性消耗性疾病慢性消耗性疾病在试验室内进行子复制.子是一种子.蛋白质错误折叠周期放大 (PMCA)

更多相关视频

Protein Misfolding Cyclic Amplification of Prions

Protein Misfolding Cyclic Amplification of Prions

Published on: November 7, 2012

Real-time Quaking-induced Conversion Assay for Detection of CWD Prions in Fecal Material

Real-time Quaking-induced Conversion Assay for Detection of CWD Prions in Fecal Material

Published on: September 29, 2017

相关概念视频

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,...