A novel H2O2-activated NIR fluorescent probe for imaging β-amyloid fibrils and mitochondrial viscosity

Y Guo, H Leng, Y Wang, WJ Shi, L Zhang, J Yan - Dyes and Pigments, 2022 - Elsevier
Alzheimer's disease (AD) is an incurable chronic neurodegenerative disease. Until now, β-
amyloid, mitochondrial viscosity and the relatively high concentration of hydrogen peroxide …

GFP-based red-emissive fluorescent probes for dual imaging of β-amyloid plaques and mitochondrial viscosity

H Leng, J Yang, L Long, Y Yan, WJ Shi, L Zhang… - Bioorganic …, 2023 - Elsevier
Abstract Alzheimer's disease (AD), with incurable neurodegenerative damage, has attracted
growing interest in exploration of better AD biomarkers in its early diagnosis. Among various …

Rational construction and evaluation of a dual-functional near-infrared fluorescent probe for the imaging of Amyloid-β and mitochondrial viscosity

Y Cao, S Xu, J Liu, S Zhao, J Yan - … Acta Part A: Molecular and Biomolecular …, 2024 - Elsevier
Alzheimer's disease is a fatal, incurable, chronic neurodegenerative disease. Diagnosis in
its early and even preclinical stages will be beneficial for its prevention and treatment. In the …

A quinolinium-based dual-functional NIR fluorescent probe for the imaging of Aβ aggregation and mitochondrial pH

Y He, J Liu, L Zhang, J Yan - Talanta, 2024 - Elsevier
Mitochondria are the most important energy supply centers in the cell, the changes in
function and structure are implicated in many diseases. Among them, Aβ peptide, one of the …

Enhanced β-Amyloid Aggregation in Living Cells Imaged with Quinolinium-Based Spontaneous Blinking Fluorophores

H Liu, Y Cao, Y Deng, L Wei, J Yan… - Chemical & Biomedical …, 2023 - ACS Publications
Abnormal accumulation of intracellular and extracellular β-amyloid (Aβ) aggregates is
closely related to the pathogenesis of Alzheimer's disease (AD). In this work, we use …

Amyloid-β oligomer targeted theranostic probes for in vivo NIR imaging and inhibition of self-aggregation and amyloid-β induced ROS generation

X Wang, C Wang, HN Chan, I Ashok… - Talanta, 2021 - Elsevier
To enable the early detection and intervention of Alzheimer's disease (AD), it is highly
desirable to develop novel theranostic agents for simultaneous detection of toxic and …

Rofecoxib derivatives as NIR fluorescent probes for mitochondrial viscosity and in vivo imaging of Aβ plaques

G Anwar, D Chen, Q Chen, C Xia, J Yan - Spectrochimica Acta Part A …, 2024 - Elsevier
Alzheimer's disease (AD) is a multifaceted neurodegenerative disorder for which the
underlying causes remain largely unknown. Therefore, the development of imaging agents …

Real-time detection and visualization of amyloid-β aggregates induced by hydrogen peroxide in cell and mouse models of Alzheimer's disease

X Wang, A Iyaswamy, D Xu… - … Applied Materials & …, 2022 - ACS Publications
Oxidative stress, caused by an imbalance between the production and the accumulation of
reactive oxygen species (ROS), is a prominent cause of the neurotoxicity induced by …

Length-dependent distinct cytotoxic effect of amyloid fibrils beyond optical diffraction limit revealed by nanoscopic imaging

Z Ye, X Geng, L Wei, Z Li, S Lin, L Xiao - ACS nano, 2020 - ACS Publications
Fibrillar species have been proposed to play an essential role in the cytotoxicity of amyloid
peptide and the pathogenesis of neurodegenerative diseases. Discrimination of Aβ …

Simultaneous imaging of mitochondrial viscosity and hydrogen peroxide in Alzheimer's disease by a single near-infrared fluorescent probe with a large Stokes shift

S Li, P Wang, W Feng, Y Xiang, K Dou… - Chemical …, 2020 - pubs.rsc.org
It has been speculated that both the intracellular viscosity and H2O2 level in Alzheimer's
disease (AD) brains are higher than that in healthy brains, but direct evidence from living …