Light-up lipid droplets for the visualization of lipophagy and atherosclerosis by coumarin-derived bioprobe

Jinrong Zheng; Shuheng Qin; Lijuan Gui; Hua Li; Lixue Fan; Yifei Yang; Haiyan Chen; Hui Xu; Zhenwei Yuan

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Light-up lipid droplets for the visualization of lipophagy and atherosclerosis by coumarin-derived bioprobe

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Lipid droplets(LDs) are intracellular lipid-metabolism organelles that involved in many physiological processes,metabolic disorders as well as diseases such as atherosclerosis.However,the specific probes that can visually locate abnormal LDs-rich tissues and track LDs-associated behavior to the naked eye with adequate biosafety still are rare.Herein,we develop a new design strategy of LDs-targeted probe based on the solvatochromism of coumarin derivatives.The results revealed that the emission wavelength of coumarin fluorophores gradually red shift in different solvents with increasing polarity,while absorption wavelength almost unchanged.As a result,the enlarged stokes shift of coumarin was emerged from oil to water.Furthermore,properly reducing water solubility and adding electronic donor at the structure of coumarins can enlarge this type of solvatochromism.This discovery was utilized to develop suitable probe for the image of LDs and LDs-rich tissues with high resolution and biosafety.Therefore,LDs-associated behavior was visible to the naked eye during the process of lipophagy and atherosclerosis.We deem that the developed probe here offers a new possibility to accurately diagnosis and analyse LDs-related diseases in clinic and preclinical study.

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《中国化学快报：英文版》 |2021年第8期|2385-2389|共5页
作者
Jinrong Zheng; Shuheng Qin; Lijuan Gui; Hua Li; Lixue Fan; Yifei Yang; Haiyan Chen; Hui Xu; Zhenwei Yuan;
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作者单位

Department of Biomedical Engineering;

School of Engineering;

China Pharmaceutical University;

Nanjing 210009;

China;

School of Pharmacy;

Key Laboratory of Molecular Pharmacology and Drug Evaluation(Yantai University);

Ministry of Education;

Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong;

Yantai University;

Yantai 264005;

China;

Department of Food Quality and Safety;

College of Food Science and Engineering/Collaborative Innovation Center for Modern Grain Circulation and Safety/Key Laboratory of Grains and Oils Quality Control and Processing;

Nanjing University of Finance and Economics;

Nanjing 210023;

China;

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原文格式 PDF
正文语种 chi
中图分类生物医学工程;光化学分析法（光谱分析法）;
关键词
Lipid droplets; Probe; Lipophagy; Atherosclerosis;

Light-up lipid droplets for the visualization of lipophagy and atherosclerosis by coumarin-derived bioprobe

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