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Tang N, Xu K, Sun R, Ding H, Zeng Y, Ji Y, Fan C, Liu G, Pu S. A turn-off xanthene-based fluorescent probe for detection of cysteine and its practical application in bioimaging and food samples. Anal Chim Acta 2024; 1329:343193. [PMID: 39396283 DOI: 10.1016/j.aca.2024.343193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 08/27/2024] [Accepted: 08/31/2024] [Indexed: 10/15/2024]
Abstract
BACKGROUND Cys, as an essential amino acid that can be ingested from daily food, plays an important role in maintaining the oxidative balance in cells. Abnormal Cys levels in organisms will lead to various diseases. Therefore, it is of great significance to construct a fluorescent probe that can detect Cys levels in food and biological systems. RESULTS Here, a turn-off type probe TA had been successfully synthesized, which attached diethylamine as the strong electron donor, acrylate as the weak electron donor, and xanthene as the π-bridge. TA showed wonderful selectivity, low detection limit, good photostability and well live-cell compatibility for Cys by reducing acrylate group to hydroxyl group of TAOH. The reaction mechanism was demonstrated by 1H NMR, ESI-MS spectra, pH-dependent response experiments, and DFT calculations. Importantly, the reason why TAOH exhibited no fluorescence was the disappearance of the ICT effect in the molecule due to the dominant existence of spirocyclic state of TAOH. In addition, the probe can be used not only for the imaging detection of Cys in A549 cells and zebrafish, but also for the detection of Cys levels in food samples. SIGNIFICANCE This work provides a new idea for the design of Cys fluorescent probe, which may be beneficial to the comprehension of the potential mechanism of novel fluorescent probe.
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Affiliation(s)
- Na Tang
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Kangshuo Xu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Ruian Sun
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Haichang Ding
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China.
| | - Yuling Zeng
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Yuan Ji
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Congbin Fan
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China
| | - Gang Liu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China.
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, PR China; Department of Ecology and Environment, Yuzhang Normal University, Nanchang, 330103, PR China.
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Huo W, Miki K, Tokunaga D, Mu H, Oe M, Harada H, Ohe K. Dual-Stimuli-Responsive Probes for Detection of Ovarian Cancer Cells and Quantification of Both pH and Enzyme Activity. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2021. [DOI: 10.1246/bcsj.20210168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Wenting Huo
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Koji Miki
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Daisuke Tokunaga
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Huiying Mu
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masahiro Oe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Hiroshi Harada
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto 615-8510, Japan
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Strom A, Shah R, Wagner CR. "Switching On" Enzyme Substrate Specificity Analysis with a Fluorescent Competitive Inhibitor. Biochemistry 2021; 60:440-450. [PMID: 33513008 DOI: 10.1021/acs.biochem.0c00954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Enzymatically driven change to the spectroscopic properties of a chemical substrate or product has been a linchpin in the development of continuous enzyme kinetics assays. These assays inherently necessitate substrates or products that naturally comply with the constraints of the spectroscopic technique being used, or they require structural changes to the molecules involved to make them observable. Here we demonstrate a new analytical kinetics approach with enzyme histidine triad nucleotide binding protein 1 (HINT1) that allows us to extract both useful kcat values and a rank-ordered list of substrate specificities without the need to track substrates or products directly. Instead, this is accomplished indirectly using a "switch on" competitive inhibitor that fluoresces maximally only when bound to the HINT1 enzyme active site. Kinetic information is extracted from the duration of the diminished fluorescence when the monitorable inhibitor-bound enzyme is challenged with saturating concentrations of a nonfluorescent substrate. We refer to the loss of fluorescence, while the substrate competes for the fluorescent probe in the active site, as the substrate's residence transit time (RTT). The ability to assess kcat values and substrate specificity by monitoring the RTTs for a set of substrates with a competitive "switch on" inhibitor should be broadly applicable to other enzymatic reactions in which the "switch on" inhibitor has sufficient binding affinity over the enzymatic product.
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Affiliation(s)
- Alexander Strom
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Rachit Shah
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Carston R Wagner
- Department of Medicinal Chemistry, University of Minnesota, Minneapolis, Minnesota 55455, United States
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Liu SY, Xiong H, Li RR, Yang WC, Yang GF. Activity-Based Near-Infrared Fluorogenic Probe for Enabling in Vitro and in Vivo Profiling of Neutrophil Elastase. Anal Chem 2019; 91:3877-3884. [DOI: 10.1021/acs.analchem.8b04455] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Shi-Yu Liu
- Key Laboratory
of Pesticide and Chemical Biology of Ministry of Education, International
Joint Research Center for Intelligent Biosensor Technology and Health,
and Chemical Biology Center, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Hao Xiong
- Key Laboratory
of Pesticide and Chemical Biology of Ministry of Education, International
Joint Research Center for Intelligent Biosensor Technology and Health,
and Chemical Biology Center, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Rong-Rong Li
- Key Laboratory
of Pesticide and Chemical Biology of Ministry of Education, International
Joint Research Center for Intelligent Biosensor Technology and Health,
and Chemical Biology Center, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Wen-Chao Yang
- Key Laboratory
of Pesticide and Chemical Biology of Ministry of Education, International
Joint Research Center for Intelligent Biosensor Technology and Health,
and Chemical Biology Center, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
| | - Guang-Fu Yang
- Key Laboratory
of Pesticide and Chemical Biology of Ministry of Education, International
Joint Research Center for Intelligent Biosensor Technology and Health,
and Chemical Biology Center, College of Chemistry, Central China Normal University, Wuhan 430079, People’s Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 30071, People’s Republic of China
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Wang J, Xu W, Yang Z, Yan Y, Xie X, Qu N, Wang Y, Wang C, Hua J. New Diketopyrrolopyrrole-Based Ratiometric Fluorescent Probe for Intracellular Esterase Detection and Discrimination of Live and Dead Cells in Different Fluorescence Channels. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31088-31095. [PMID: 30129745 DOI: 10.1021/acsami.8b11365] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
A new diketopyrrolopyrrole-based fluorescent probe (DPP-AM) was designed and synthesized for ratiometric detection of esterase and for imaging of live and dead cells in different modes. DPP-AM showed red fluorescence because of the intramolecular charge transfer (ICT) process from the DPP moiety to the pyridinium cation and gave remarkable ratio changes (about 70 folds), with the fluorescence changing from red to yellow, after treating with esterase because of the broken ICT process. Besides, the detection limit of DPP-AM toward esterase in vitro was 9.51 × 10-5 U/mL. After pretreating with H2O2 and ultraviolet light radiation, the health status of TPC1 cells was successfully imaged. More importantly, DPP-AM showed yellow fluorescence in live cells and a red fluorescent signal in dead cells, indicating that DPP-AM has great potential applications for assessing esterase activity as well as for discriminating live and dead cells.
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Affiliation(s)
- Jian Wang
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Weibo Xu
- Department of Oncology , Shanghai Medical College, Fudan University , Shanghai 200032 , China
- Department of Head and Neck Surgery , Fudan University Shanghai Cancer Center , Shanghai 200032 , China
| | - Zhicheng Yang
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Yongchao Yan
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Xiaoxu Xie
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Ning Qu
- Department of Oncology , Shanghai Medical College, Fudan University , Shanghai 200032 , China
- Department of Head and Neck Surgery , Fudan University Shanghai Cancer Center , Shanghai 200032 , China
| | - Yu Wang
- Department of Oncology , Shanghai Medical College, Fudan University , Shanghai 200032 , China
- Department of Head and Neck Surgery , Fudan University Shanghai Cancer Center , Shanghai 200032 , China
| | - Chengyun Wang
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
| | - Jianli Hua
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, College of Chemistry and Molecular Engineering , East China University of Science and Technology , 130 Meilong Road , Shanghai 200237 , China
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