相关实验视频

Updated: Feb 28, 2026

Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging

Imaging Amyloid Tissues Stained with Luminescent Conjugated Oligothiophenes by Hyperspectral Confocal Microscopy and Fluorescence Lifetime Imaging

Published on: October 20, 2017

易溶性红色光探针用于精确的溶酶体白蛋白成像在帕金森病

Qisheng Zhang¹, Bingxue Li¹, Xueqiong Li²

¹School of Basic Medical Sciences, School of Pharmacy, School of Public Health, Shandong Second Medical University, Weifang 261000, China.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|February 25, 2026

概括

研究人员开发了SQ-1,一种新型的光探针,用于检测 lysosomes 内的人类血清白蛋白 (HSA) 的变化. 这种工具有助于了解帕金森病 (PD) 的机制,并为新的诊断策略提供了潜在的可能性.

科学领域:

神经科学是一个神经科学.
生物化学生物化学
医学诊断医学诊断医学诊断

背景情况:

人类血清白蛋白 (HSA) 通过调节质神经信号传递和抗氧化活性,在帕金森病 (PD) 中提供神经保护.
溶解体对于维持神经元平衡至关重要,使溶解体HSA动态与PD病理生理学相关.
目前用于溶解体HSA成像的光探针在速度,灵敏度,可溶性和发射波长方面存在局限性.

研究的目的:

开发一种新型的光探针,用于灵敏和快速地检测 lysosomes 内的人类血清白蛋白 (HSA).
在帕金森病 (PD) 模型中研究 lysosomal HSA 变化的作用.
建立基于 lysosomal HSA 水平的神经系统疾病的潜在诊断工具.

主要方法:

开发SQ-1,一种具有快速响应 (<60秒),高灵敏度 (LOD=82nM),水溶性优异,辐射波长长 (>600nm),检测范围广 (0-60μM) 的光探针.
在细胞PD模型中评估SQ-1,以检测 lysosomalalbumin水平的变化.
在PD大鼠模型中的体内成像,以评估大脑白蛋白水平.
使用SQ-1从PD模型动物的生物流体 (尿液,脑脊液) 中量化检测白蛋白.

主要成果:

SQ-1 显示出快速响应,高灵敏度和适用于水环境和长波长成像的适用性.
探测器在细胞PD模型中成功检测出 lysosomalalbumin 的特定下降.
在体内成像显示了PD模型大鼠大脑中的白蛋白水平升高.
SQ-1 能够从PD模型动物的尿液和CSF中定量检测白蛋白,表明了临床相关性.

结论:

SQ-1是一种可靠和先进的光探针,用于检测 lysosomal HSA,与现有方法相比有显著的改进.
该探针有助于研究在PD病变发生过程中的溶解体HSA动态.
SQ-1显示出作为神经生物学研究和神经疾病诊断的强大工具的前景.

关键词:

对生物流体进行分析.光探测器探测器可以发光.溶酶体成像检测溶酶体成像检测帕金森病 (PD) 是一种疾病.血清中白蛋白的使用.

更多相关视频

Human Peripheral Blood Neutrophil Isolation for Interrogating the Parkinson's Associated LRRK2 Kinase Pathway by Assessing Rab10 Phosphorylation

Human Peripheral Blood Neutrophil Isolation for Interrogating the Parkinson's Associated LRRK2 Kinase Pathway by Assessing Rab10 Phosphorylation

Published on: March 21, 2020

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis

Real-Time Fluorescent Measurement of Synaptic Functions in Models of Amyotrophic Lateral Sclerosis

Published on: July 16, 2021

相关概念视频

Lysosomal Hydrolases

Lysosomal Hydrolases

Lysosomes are the site for the degradation of macromolecules and biological polymers released during membrane trafficking events such as secretory, endocytic, autophagic, and phagocytic pathways. The membrane-enclosed area of the lysosome, called the lumen, contains hydrolytic enzymes active in an acidic environment. These acid hydrolases are functional at a pH between 4.5 and 5 and are involved in cellular processes such as cell signaling, energy metabolism, restoration of the plasma membrane,...