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Li Y, Jin C, Xu H, Wu W, Wang Y, Wu J, Liu T, Wan G, Yue X, Bu X. Identification of 2-Benzylidene-tetralone Derivatives as Highly Potent and Reversible Firefly Luciferase Inhibitors. ACS Med Chem Lett 2022; 13:304-311. [PMID: 35178187 PMCID: PMC8842144 DOI: 10.1021/acsmedchemlett.1c00671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 01/14/2022] [Indexed: 11/28/2022] Open
Abstract
The extensive applications of Firefly luciferase (Fluc) in numerous biological, biomedical, and clinical investigations rendered an urgent need for efficient and biocompatible Fluc inhibitors for the construction of novel assay platforms. Herein we describe the identification of 2-benzylidene-tetralone derivatives as highly potent and reversible Firefly luciferase inhibitors by competing with d-luciferin. The most active compound 48 was found to have >7000 fold higher potency (IC50 = 0.25 nM) than that of the well-known luciferase inhibitor resveratrol (IC50 = 1.9 μM) biochemically with sub- to low nanomolar IC50 values, and it can efficiently block the Fluc generated bioluminescence in vivo.
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Affiliation(s)
- Yunzhi Li
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Chaoying Jin
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Huiying Xu
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Weijian Wu
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Youqiao Wang
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Jiaxin Wu
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Tingyu Liu
- State
Key Laboratory of Oncology in South China, Collaborative Innovation
Center for Cancer Medicine, Sun Yat-sen
University Cancer Center, Guangzhou 510060, China
| | - Guohui Wan
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
| | - Xin Yue
- Department
of Radiation Oncology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
- Institute
of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Xianzhang Bu
- School
of Pharmaceutical Sciences, Sun Yat-sen
University, Guangzhou 510006, China
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Nakad EA, Chaud J, Morville C, Bolze F, Specht A. Monitoring of uncaging processes by designing photolytical reactions. Photochem Photobiol Sci 2020; 19:1122-1133. [PMID: 32756690 DOI: 10.1039/d0pp00169d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The use of photolabile protecting groups (PPGs) has been growing in emphasis for decades, and nowadays they enable cutting-edge results in numerous fields ranging from organic synthesis to neurosciences. PPGs are chemical entities that can be conjugated to a biomolecule to hide its biological activity, forming a stable so called "caged compound". This conjugate can be simply cleaved by light and therefore, the functionality of the biomolecule is restored with the formation of a PPG by-product. However, there is a sizeable need for PPGs that are able to quantify the "uncaging" process. In this review, we will discuss several strategies leading to an acute quantification of the uncaging events by fluorescence. In particular, we will focus on how molecular engineering of PPG could open new opportunities by providing easy access to photoactivation protocols.
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Affiliation(s)
- E Abou Nakad
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000, Strasbourg, France
| | - J Chaud
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000, Strasbourg, France
| | - C Morville
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000, Strasbourg, France
| | - F Bolze
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000, Strasbourg, France.
| | - A Specht
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000, Strasbourg, France
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Meng L, Ngai KY, Chang X, Lin Z, Wang J. Cu(I)-Catalyzed Enantioselective Alkynylation of Thiochromones. Org Lett 2020; 22:1155-1159. [PMID: 31961693 DOI: 10.1021/acs.orglett.0c00005] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
A highly efficient asymmetric synthesis of chiral thiochromanones is developed via Cu(I)/phosphoramidite catalyzed asymmetric alkynylation of thiochromones under mild reaction conditions. The catalyst system is tolerant of various thiochromone precursors and terminal alkynes. The established asymmetric transformation provides different enatiomeric-enriched thiochromanones with more molecular complexity and enables access to chiral thioflavanones, a subgroup of flavonoid by further functionalization.
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Affiliation(s)
- Ling Meng
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China.,Department of Chemistry , The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon , Hong Kong
| | - Ka Yan Ngai
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Xiaoyong Chang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
| | - Zhenyang Lin
- Department of Chemistry , The Hong Kong University of Science & Technology , Clear Water Bay, Kowloon , Hong Kong
| | - Jun Wang
- Shenzhen Grubbs Institute and Department of Chemistry , Southern University of Science and Technology , Shenzhen 518055 , China
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Abou Nakad E, Bolze F, Specht A. o-Nitrobenzyl photoremovable groups with fluorescence uncaging reporting properties. Org Biomol Chem 2019; 16:6115-6122. [PMID: 30094422 DOI: 10.1039/c8ob01330f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
o-Nitrobenzyl (o-NB) derivatives are the most widely applied photoremovable groups for the study of dynamic biological processes. By introducing different substituents to the benzylic position we were able to generate a fluorescence signal upon irradiation. This signal originates from the formation of a nitrosoketone by-product able to achieve a keto-enol tautomerism leading to pi-conjugated α-hydroxystilbene derivatives. These o-NB caging groups can be used to directly monitor the uncaging event by the release of a detectable fluorescent side-product.
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Affiliation(s)
- E Abou Nakad
- Laboratoire de Conception et Application de Molécules Bioactives, Equipe de Chimie et Neurobiologie Moléculaire, Université de Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France.
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