Lysosomal biothiols play critical roles in numerous cellular processes and diseases. Researching an effective method for real-time labeling biothiols in lysosomes is of great significance and urgency, as it could provide essential information for the diagnosis of relevant diseases. In this study, we developed a lysosome-targeted fluorescent probe (LY-DCM-P) with a large Stokes shift of 150 nm for the sensitive and selective detection of biothiols and . Additionally, LY-DCM-P showed low cytotoxicity and excellent lysosome-targeted ability. The probe was successfully employed to monitor fluctuations in lysosomal biothiols in various living systems, enabling enormous potential to accurately monitor the occurrence and progress of biothiol-related diseases.
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http://dx.doi.org/10.1016/j.isci.2024.111334 | DOI Listing |
iScience
December 2024
Hubei Key Laboratory for Precision Synthesis of Small Molecule Pharmaceuticals & Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan 430062, P.R. China.
Lysosomal biothiols play critical roles in numerous cellular processes and diseases. Researching an effective method for real-time labeling biothiols in lysosomes is of great significance and urgency, as it could provide essential information for the diagnosis of relevant diseases. In this study, we developed a lysosome-targeted fluorescent probe (LY-DCM-P) with a large Stokes shift of 150 nm for the sensitive and selective detection of biothiols and .
View Article and Find Full Text PDFLuminescence
November 2024
College of Chemistry & Chemical Engineering, Central South University, Changsha, Hunan, China.
Abnormal lysosomal viscosity is closely associated with cancer progression, underscoring the need for bifunctional fluorescent probes and photosensitizers (PSs) that can both monitor viscosity and facilitate imaging-guided therapy for simultaneous cancer diagnosis and treatment. Despite advances in lysosome-targeted PSs development, few have demonstrated the ability to generate both Type I and Type II reactive oxygen species (ROS). In this study, we present BTTPA, a lysosome-targeted fluorescent probe and photosensitizer, designed to integrate cancer diagnosis via viscosity imaging and cancer treatment through photodynamic therapy (PDT).
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
October 2023
College of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China.
Smartphone-assisted visual assay not only expands quantitative analysis but also enhance real-time on-site sensing capabilities. Herein, lysosome-targeted dual-emissive carbon dots (L-CDs) can not only recognize Hg and SO by ratiometric fluorescence and ratiometric absorption, but also visually quantify Hg and SO by smartphone-assisted method. With monitoring of intrinsic ratiometric fluorescent variation (I/I), L-CDs are developed as an effective sensing platform for ratiometric fluorescent successive identification of Hg and SO accompanying with continuous fluorescence variation of blue, purplish pink, pink, and light yellow.
View Article and Find Full Text PDFNatl Sci Rev
November 2024
CAS Key Laboratory of Interfacial Physics and Technology, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China.
Abnormal levels of zinc ions within endo-lysosomes have been implicated in the progression of Alzheimer's disease (AD), yet the detection of low-concentration zinc ions at the organelle level remains challenging. Here we report the design of an endo-lysosome-targeted fluorescent reporter, Znluor, for imaging endogenous zinc ions. Znluor is constructed from an amphiphilic DNA framework (DNF) with programmable size and shape, which can encapsulate zinc-responsive fluorophores within its hydrophobic nanocavity.
View Article and Find Full Text PDFInorg Chem
October 2024
Department of Chemistry, National Institute of Technology, 769008 Rourkela, Odisha, India.
Developing new anticancer agents can be useful, with the ability to diagnose and treat cancer worldwide. Previously, we focused on examining the effects of nonoxidovanadium(IV) complexes on insulin mimetic and cytotoxicity activity. In this study, in addition to the cytotoxic activity, we evaluated their bioimaging properties.
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