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Visualization of the elevated levels of hypochlorous acid in Alzheimer's disease with a ruthenium(II) complex-based luminescence probe.
Liu, Chaolong; Li, Zhipeng; Zhang, Hao; Yu, Hongli; Yan, Jianqin; Wei, Dengshuai; Song, Zhenhua; Cao, Jie; Sun, Yong.
Afiliação
  • Liu C; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China. Electronic address: clliu@qdu.edu.cn.
  • Li Z; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Zhang H; Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Yu H; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Yan J; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Wei D; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Song Z; Department of Pharmacology, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Cao J; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China.
  • Sun Y; Department of Pharmaceutics, School of Pharmacy, Qingdao University, Qingdao, 266071, China. Electronic address: sunyong@qdu.edu.cn.
Anal Chim Acta ; 1279: 341779, 2023 Oct 23.
Article em En | MEDLINE | ID: mdl-37827677
ABSTRACT
Alzheimer's disease (AD) is an age-related neurodegenerative disorder that devastatingly affects people's lives. Accumulating evidence indicates that the pathological progression of AD is inseparably connected with hypochlorous acid (HClO). However, further exploring the biological function remains an open challenging due to a lack of effective tools to image HClO in AD brains. To this end, a ruthenium(II) luminescence probe, Ru-HClO, is developed for quantitative detection and visualization of HClO in nerve cells and AD brains. Ru-HClO shows quenched luminescence due to the PET process (excited electron transfer from Ru(II) center to diaminomaleonitrile) and the CN bond isomerization in the excited state. The HClO-triggered specific cleavage reaction with Ru-HClO cleaves the CN bond to form highly luminescent Ru-COOH. Ru-HClO shows rapid response speed, high sensitivity and selectivity, excellent biocompatibility, which makes the probe to be applied to semi-quantitative analysis of HClO in nerve cells and high-throughput screening of anti-AD drugs in the AD cell model. Moreover, using Ru-HClO as a probe, present work further validated that the elevated levels of HClO secretion were accompanied by the AD progressed. These findings may provide valuable results for figuring out the biological roles that HClO played in AD but also for accelerating anti-AD therapeutic discovery.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Rutênio / Doença de Alzheimer Idioma: En Ano de publicação: 2023 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Rutênio / Doença de Alzheimer Idioma: En Ano de publicação: 2023 Tipo de documento: Article