1
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Daddi-Moussa-Ider A, Tjhung E, Richter T, Menzel AM. Hydrodynamics of a disk in a thin film of weakly nematic fluid subject to linear friction. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2024; 36:445101. [PMID: 39029503 DOI: 10.1088/1361-648x/ad65ad] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Accepted: 07/19/2024] [Indexed: 07/21/2024]
Abstract
To make progress towards the development of a theory on the motion of inclusions in thin structured films and membranes, we here consider as an initial step a circular disk in a two-dimensional, uniaxially anisotropic fluid layer. We assume overdamped dynamics, incompressibility of the fluid, and global alignment of the axis of anisotropy. Motion within this layer is affected by additional linear friction with the environment, for instance, a supporting substrate. We investigate the induced flows in the fluid when the disk is translated parallel or perpendicular to the direction of anisotropy. Moreover, expressions for corresponding mobilities and resistance coefficients of the disk are derived. Our results are obtained within the framework of a perturbative expansion in the parameters that quantify the anisotropy of the fluid. Good agreement is found for moderate anisotropy when compared to associated results from finite-element simulations. At pronounced anisotropy, the induced flow fields are still predicted qualitatively correctly by the perturbative theory, although quantitative deviations arise. We hope to stimulate with our investigations corresponding experimental analyses, for example, concerning fluid flows in anisotropic thin films on uniaxially rubbed supporting substrates.
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Affiliation(s)
- Abdallah Daddi-Moussa-Ider
- School of Mathematics and Statistics, The Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom
| | - Elsen Tjhung
- School of Mathematics and Statistics, The Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom
| | - Thomas Richter
- Institut für Analysis und Numerik, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
| | - Andreas M Menzel
- Institut für Physik, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, 39106 Magdeburg, Germany
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2
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Tamura I, Sakamoto DM, Yi B, Saito Y, Yamada N, Morimoto J, Takakusagi Y, Kuroda M, Kubota SI, Yatabe H, Kobayashi M, Harada H, Tainaka K, Sando S. Click3D: Click reaction across deep tissues for whole-organ 3D fluorescence imaging. SCIENCE ADVANCES 2024; 10:eado8471. [PMID: 39018410 PMCID: PMC466963 DOI: 10.1126/sciadv.ado8471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2024] [Accepted: 06/11/2024] [Indexed: 07/19/2024]
Abstract
Click chemistry offers various applications through efficient bioorthogonal reactions. In bioimaging, pretargeting strategies have often been used, using click reactions between molecular probes with a click handle and reporter molecules that make them observable. Recent efforts have integrated tissue-clearing techniques with fluorescent labeling through click chemistry, allowing high-resolution three-dimensional fluorescence imaging. Nevertheless, these techniques have faced a challenge in limited staining depth, confining their use to imaging tissue sections or partial organs. In this study, we introduce Click3D, a method for thoroughly staining whole organs using click chemistry. We identified click reaction conditions that improve staining depth with our custom-developed assay. The Click3D protocol exhibits a greater staining depth compared to conventional methods. Using Click3D, we have successfully achieved whole-kidney imaging of nascent RNA and whole-tumor imaging of hypoxia. We have also accomplished whole-brain imaging of hypoxia by using the clickable hypoxia probe, which has a small size and, therefore, has high permeability to cross the blood-brain barrier.
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Affiliation(s)
- Iori Tamura
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Daichi M. Sakamoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Bo Yi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yutaro Saito
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Naoki Yamada
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Jumpei Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yoichi Takakusagi
- Quantum Hyperpolarized MRI Research Team, Institute for Quantum Life Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
- Institute for Quantum Medical Science, National Institutes for Quantum Science and Technology, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555, Japan
| | - Masafumi Kuroda
- International Research Center for Neurointelligence (WPI-IRCN), The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shimpei I. Kubota
- Division of Molecular Psychoimmunology, Institute for Genetic Medicine, Graduate School of Medicine, Hokkaido University, Kita-15, Nishi-7, Kita-ku, Sapporo, Hokkaido 060-0815, Japan
| | - Hiroyuki Yatabe
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Minoru Kobayashi
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroshi Harada
- Laboratory of Cancer Cell Biology, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
- Department of Genome Dynamics, Radiation Biology Center, Graduate School of Biostudies, Kyoto University, Yoshida Konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazuki Tainaka
- Department of System Pathology for Neurological Disorders, Brain Research Institute, Niigata University, 1-757 Asahimachidori, Chuo-ku, Niigata 951-8585, Japan
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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3
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Gao M, Sun Q, Zhang H, Liu M, Peng R, Qin W, Wang Q, Yang T, Zhou M, He X, Sun G. Bioinspired Nano-Photosensitizer-Activated Caspase-3/GSDME Pathway Induces Pyroptosis in Lung Cancer Cells. Adv Healthc Mater 2024:e2401616. [PMID: 38895987 DOI: 10.1002/adhm.202401616] [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: 05/01/2024] [Revised: 06/09/2024] [Indexed: 06/21/2024]
Abstract
Noninflammatory apoptosis is transformed into inflammatory pyroptosis by activating caspase-3 to lyse gasdermin E (GSDME), and this process can be used as an effective therapeutic strategy. Thus, a selective and powerful inducer of activated caspase-3 plays a vital role in pyroptosis-based cancer therapy. Herein, a human cell membrane vesicle-based nanoplatform (HCNP) is designed for photodynamic therapy (PDT). HCNP is modified with vesicular stomatitis virus G-protein (VSVG) to anchor nano-photosensitizers on the tumor cell membrane. Photosensitizers are bonded to HCNP by clicking chemical reaction as pyroptosis inducers. The results show that HCNP effectively disrupts the mitochondrial function of cells by generating reactive oxygen species (ROS) upon laser irradiation; concomitantly, GSDME is cleaved by activated caspase-3 and promotes pyroptosis of lung cancer cells. Here an effective intervention strategy is proposed to induce pyroptosis based on light-activated PDT.
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Affiliation(s)
- Min Gao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Qiuting Sun
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Huiru Zhang
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Mengyu Liu
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Rui Peng
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Weiji Qin
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Qian Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
| | - Tianhao Yang
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Man Zhou
- College of Pharmacy, Gannan Medical University, Ganzhou, 341000, China
| | - Xiaoyan He
- School of Life Sciences, Anhui Medical University, Hefei, 230032, China
| | - Gengyun Sun
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China
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4
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Işık M, Kısaçam MA. Readily Accessible and Brightly Fluorogenic BODIPY/NBD-Tetrazines via S NAr Reactions. J Org Chem 2024; 89:6513-6519. [PMID: 38598957 PMCID: PMC11077493 DOI: 10.1021/acs.joc.3c02864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 03/25/2024] [Accepted: 03/27/2024] [Indexed: 04/12/2024]
Abstract
We describe SNAr reactions of some commercial amino-tetrazines and halo-dyes, which give efficiently quenched BODIPY/NBD-tetrazines (ΦFl < 0.01) in high yields and, importantly, with high purities affordable via simple silica gel chromatography only. The dyes exhibit large Stokes shifts, moderate environmental sensitivity, and emission enhancements (up to 193-fold) upon Tz ligation with BCN─a strained dienophile. They successfully serve as labels for HSA protein premodified with BCN, resulting in bright blue-green emission upon ligation.
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Affiliation(s)
- Murat Işık
- Department
of Food Engineering, Bingöl University, 12000 Bingöl, Türkiye
| | - Mehmet Ali Kısaçam
- Department
of Biochemistry, Faculty of Veterinary Medicine, Mustafa Kemal University, 31060 Hatay, Türkiye
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5
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Pereira A, Baron L, Bucci R, Plays M, Bonasegale G, Picard-Bernes A, Bibrowski M, Morris N, Marynberg S, Sindikubwabo F, Cañeque T, Müller S, Colombeau L, Solier S, Bono Y, Gaillet C, Johannes L, Puisieux A, Rodriguez R. PSL Chemical Biology Symposia: Recent Progress in Ferroptosis. Chembiochem 2024; 25:e202400211. [PMID: 38530090 DOI: 10.1002/cbic.202400211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Indexed: 03/27/2024]
Abstract
This symposium is the 5th PSL (Paris Sciences & Lettres) Chemical Biology meeting (2015, 2016, 2019, 2023, 2024) held at Institut Curie. This initiative originally started at Institut de Chimie des Substances Naturelles (ICSN) in Gif-sur-Yvette, with a strong focus on chemistry. It was then continued at the Institut Curie (2015) covering a larger scope, before becoming the official PSL Chemical Biology meeting. This latest edition hosted around 150 participants and was focused on the burgeoning field of ferroptosis, its mechanism and implications in health and disease. While not initially planned, it was felt that the next large Ferroptosis venue (CSHA, China) would not happen before late 2024. A discussion involving Conrad, Birsoy, Ubellacker, Brabletz and Rodriguez next to lake Como in Italy sponsored by the DKFZ, prompted us to fill in this gap and to organize a Ferroptosis meeting in Paris beforehand.
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Affiliation(s)
- Arthur Pereira
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Leeroy Baron
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Romain Bucci
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Marina Plays
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Giulia Bonasegale
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Armel Picard-Bernes
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Manuel Bibrowski
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Nolwenn Morris
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Sacha Marynberg
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Fabien Sindikubwabo
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Tatiana Cañeque
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Sebastian Müller
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Ludovic Colombeau
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Stéphanie Solier
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Yannick Bono
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Christine Gaillet
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Ludger Johannes
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Alain Puisieux
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
| | - Raphaël Rodriguez
- Institut Curie, Department of Cellular and Chemical Biology, UMR 3666 CNRS, U1143 INSERM, PSL Université Paris, 75005, Paris, France
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6
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Kawaguchi M, Yonetani Y, Mizuguchi T, Spratt SJ, Asanuma M, Shimizu H, Sasaki M, Ozeki Y. Visualization of Modified Bisarylbutadiyne-Tagged Small Molecules in Live-Cell Nuclei by Stimulated Raman Scattering Microscopy. Anal Chem 2024; 96:6643-6651. [PMID: 38626411 DOI: 10.1021/acs.analchem.3c05946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Visualizing the distribution of small-molecule drugs in living cells is an important strategy for developing specific, effective, and minimally toxic drugs. As an alternative to fluorescence imaging using bulky fluorophores or cell fixation, stimulated Raman scattering (SRS) imaging combined with bisarylbutadiyne (BADY) tagging enables the observation of small molecules closer to their native intracellular state. However, there is evidence that the physicochemical properties of BADY-tagged analogues of small-molecule drugs differ significantly from those of their parent drugs, potentially affecting their intracellular distribution. Herein, we developed a modified BADY to reduce deviations in physicochemical properties (in particular, lipophilicity and membrane permeability) between tagged and parent drugs, while maintaining high Raman activity in live-cell SRS imaging. We highlight the practical application of this approach by revealing the nuclear distribution of a modified BADY-tagged analogue of JQ1, a bromodomain and extra-terminal motif inhibitor with applications in targeted cancer therapy, in living HeLa cells. The modified BADY, methoxypyridazyl pyrimidyl butadiyne (MPDY), revealed intranuclear JQ1, while BADY-tagged JQ1 did not show a clear nuclear signal. We anticipate that the present approach combining MPDY tagging with live-cell SRS imaging provides important insight into the behavior of intracellular drugs and represents a promising avenue for improving drug development.
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Affiliation(s)
| | - Yuki Yonetani
- Future Technology R&D Center, Canon Inc., Tokyo 146-8501, Japan
| | - Takaha Mizuguchi
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
| | - Spencer J Spratt
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
| | - Masato Asanuma
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan
| | - Hiroki Shimizu
- Organic & Biomolecular Chemistry Department, Daiichi Sankyo RD Novare Co., Ltd., Tokyo 134-8630, Japan
| | - Masato Sasaki
- Organic & Biomolecular Chemistry Department, Daiichi Sankyo RD Novare Co., Ltd., Tokyo 134-8630, Japan
| | - Yasuyuki Ozeki
- Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Tokyo 153-8904, Japan
- Department of Electrical Engineering and Information Systems, The University of Tokyo, Tokyo 113-8656, Japan
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7
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Ramos R, Karaiskou A, Botuha C, Amhaz S, Trichet M, Dingli F, Forté J, Lam F, Canette A, Chaumeton C, Salome M, Chenuel T, Bergonzi C, Meyer P, Bohic S, Loew D, Salmain M, Sobczak-Thépot J. Identification of Cellular Protein Targets of a Half-Sandwich Iridium(III) Complex Reveals Its Dual Mechanism of Action via Both Electrophilic and Oxidative Stresses. J Med Chem 2024; 67:6189-6206. [PMID: 38577779 DOI: 10.1021/acs.jmedchem.3c02000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024]
Abstract
Identification of intracellular targets of anticancer drug candidates provides key information on their mechanism of action. Exploiting the ability of the anticancer (C∧N)-chelated half-sandwich iridium(III) complexes to covalently bind proteins, click chemistry with a bioorthogonal azido probe was used to localize a phenyloxazoline-chelated iridium complex within cells and profile its interactome at the proteome-wide scale. Proteins involved in protein folding and actin cytoskeleton regulation were identified as high-affinity targets. Upon iridium complex treatment, the folding activity of Heat Shock Protein HSP90 was inhibited in vitro and major cytoskeleton disorganization was observed. A wide array of imaging and biochemical methods validated selected targets and provided a multiscale overview of the effects of this complex on live human cells. We demonstrate that it behaves as a dual agent, inducing both electrophilic and oxidative stresses in cells that account for its cytotoxicity. The proposed methodological workflow can open innovative avenues in metallodrug discovery.
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Affiliation(s)
- Robin Ramos
- Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, 184 rue du Faubourg Saint Antoine, F-75012 Paris, France
| | - Anthi Karaiskou
- Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, 184 rue du Faubourg Saint Antoine, F-75012 Paris, France
| | - Candice Botuha
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, F-75005 Paris, France
| | - Sadek Amhaz
- Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, 184 rue du Faubourg Saint Antoine, F-75012 Paris, France
| | - Michaël Trichet
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Service d'imagerie cellulaire, F-75005 Paris, France
| | - Florent Dingli
- Institut Curie, PSL Research University, CurieCoreTech Mass Spectrometry Proteomics, F-75248 Paris, France
| | - Jérémy Forté
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, F-75005 Paris, France
| | - France Lam
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Service d'imagerie cellulaire, F-75005 Paris, France
| | - Alexis Canette
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Service d'imagerie cellulaire, F-75005 Paris, France
| | - Chloé Chaumeton
- Sorbonne Université, CNRS, Institut de Biologie Paris-Seine, Service d'imagerie cellulaire, F-75005 Paris, France
| | - Murielle Salome
- ESRF, The European Synchrotron Research Facility, F-38043 Grenoble cedex 9, France
| | - Thomas Chenuel
- Sorbonne Université, PSL, CNRS, UMR8226, Institut de Biologie Physico-Chimique, Laboratoire de Biologie Moléculaire et Cellulaire des Eucaryotes, F-75005 Paris, France
| | - Céline Bergonzi
- Sorbonne Université, PSL, CNRS, UMR8226, Institut de Biologie Physico-Chimique, Laboratoire de Biologie Moléculaire et Cellulaire des Eucaryotes, F-75005 Paris, France
| | - Philippe Meyer
- Sorbonne Université, PSL, CNRS, UMR8226, Institut de Biologie Physico-Chimique, Laboratoire de Biologie Moléculaire et Cellulaire des Eucaryotes, F-75005 Paris, France
| | - Sylvain Bohic
- Université Grenoble Alpes, INSERM, UA7 STROBE, Synchrotron Radiation for Biomedicine, F-38400 Saint Martin d'Hères, France
| | - Damarys Loew
- Institut Curie, PSL Research University, CurieCoreTech Mass Spectrometry Proteomics, F-75248 Paris, France
| | - Michèle Salmain
- Sorbonne Université, CNRS, Institut Parisien de Chimie Moléculaire, 4 place Jussieu, F-75005 Paris, France
| | - Joëlle Sobczak-Thépot
- Sorbonne Université, INSERM, Centre de Recherche Saint Antoine, 184 rue du Faubourg Saint Antoine, F-75012 Paris, France
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8
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Deng Y, Shen T, Yu X, Li J, Zou P, Gong Q, Zheng Y, Sun H, Liu X, Wu H. Tetrazine-Isonitrile Bioorthogonal Fluorogenic Reactions Enable Multiplex Labeling and Wash-Free Bioimaging of Live Cells. Angew Chem Int Ed Engl 2024; 63:e202319853. [PMID: 38242857 DOI: 10.1002/anie.202319853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 01/21/2024]
Abstract
Developing fluorogenic probes for simultaneous live cell labeling of multiple targets is crucial for understanding complex cellular events. The emerging [4+1] cycloaddition between tetrazine and isonitriles holds promise as a bioorthogonal tool, yet existing tetrazine probes lack reactivity and fluorogenicity. Here, we present the development of a series of tetrazine-functionalized bioorthogonal probes. By incorporating pyrazole adducts into the fluorophore scaffolds, the post-reacted probes displayed remarkable fluorescence turn-on ratios, up to 3184-fold. Moreover, these modifications are generalizable to various fluorophores, enabling a broad emission range from 473 to 659 nm. Quantum chemical calculations further elucidate the turn-on mechanisms. These probes enable the simultaneous labeling of multiple targets in live cells, without the need for a washing step. Consequently, our findings pave the way for advanced multiplex imaging and detection techniques for cellular studies.
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Affiliation(s)
- Yingqiao Deng
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
| | - Tianruo Shen
- Science, Mathematics and Technology Cluster, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore, Singapore
| | - Xinyu Yu
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
| | - Jie Li
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
| | - Peixuan Zou
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, No.17 People's South Road, 610041, Chengdu, China
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, No.17 People's South Road, 610041, Chengdu, China
| | - Qiyong Gong
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
| | - Yongxiang Zheng
- Department of Biopharmaceutics, West China School of Pharmacy, Sichuan University, No.17 People's South Road, 610041, Chengdu, China
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, No.17 People's South Road, 610041, Chengdu, China
| | - Hongbao Sun
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
| | - Xiaogang Liu
- Science, Mathematics and Technology Cluster, Singapore University of Technology and Design, 8 Somapah Road, 487372, Singapore, Singapore
| | - Haoxing Wu
- Department of Radiology and Huaxi MR Research Center (HMRRC), Functional and Molecular Imaging Key Laboratory of Sichuan Province and Frontiers Science Center for Disease Related Molecular Network, West China Hospital, Sichuan University, Huaxi Research Building, 001 4th Keyuan Road, 610041, Chengdu, China
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry, Sichuan Engineering Laboratory for Plant-Sourced Drug and Sichuan Research Center for Drug Precision Industrial Technology, West China School of Pharmacy, Sichuan University, No.17 People's South Road, 610041, Chengdu, China
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9
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D’Avino C, Gutiérrez S, Feldhaus MJ, Tomás-Gamasa M, Mascareñas JL. Intracellular Synthesis of Indoles Enabled by Visible-Light Photocatalysis. J Am Chem Soc 2024; 146:2895-2900. [PMID: 38277674 PMCID: PMC10859955 DOI: 10.1021/jacs.3c13647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/14/2024] [Accepted: 01/22/2024] [Indexed: 01/28/2024]
Abstract
Performing abiotic synthetic transformations in live cell environments represents a new, promising approach to interrogate and manipulate biology and to uncover new types of biomedical tools. We now found that photocatalytic bond-forming reactions can be added to the toolbox of bioorthogonal synthetic chemistry. Specifically, we demonstrate that exogenous styryl aryl azides can be converted into indoles inside living mammalian cells under photocatalytic conditions.
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Affiliation(s)
- Cinzia D’Avino
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS),
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain
| | - Sara Gutiérrez
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS),
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain
| | - Max J. Feldhaus
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS),
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain
| | - María Tomás-Gamasa
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS),
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain
| | - José Luis Mascareñas
- Centro Singular de Investigación
en Química Biolóxica e Materiais Moleculares (CIQUS),
and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15705 Santiago de Compostela, Spain
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10
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Šlachtová V, Bellová S, Vrabel M. Synthesis of C 3-Substituted N1- tert-Butyl 1,2,4-Triazinium Salts via the Liebeskind-Srogl Reaction for Fluorogenic Labeling of Live Cells. J Org Chem 2024. [PMID: 38224304 DOI: 10.1021/acs.joc.3c02454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
We recently described the development and application of a new bioorthogonal conjugation, the triazinium ligation. To explore the wider application of this reaction, in this work, we introduce a general method for synthesizing C3-substituted triazinium salts based on the Liebeskind-Srogl cross-coupling reaction and catalytic thioether reduction. These methods enabled the synthesis of triazinium derivatives for investigating the effect of different substituents on the ligation kinetics and stability of the compounds under biologically relevant conditions. Finally, we demonstrate that the combination of a coumarin fluorophore attached to position C3 with a C5-(4-methoxyphenyl) substituent yields a fluorogenic triazinium probe suitable for no-wash, live-cell labeling. The developed methodology represents a promising synthetic approach to the late-stage modification of triazinium salts, potentially widening their applications in bioorthogonal reactions.
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Affiliation(s)
- Veronika Šlachtová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000 Prague, Czech Republic
| | - Simona Bellová
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000 Prague, Czech Republic
| | - Milan Vrabel
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences, Flemingovo nám. 2, 16000 Prague, Czech Republic
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11
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Permingeat Squizatto C, Bianchini MA, Delpiccolo CML. Synthesis of 2,3-Dihydropyrroles by Rhodium(II)-Catalyzed Transannulation of N-Sulfonyl-1,2,3-triazoles: Diversity Generation by One-Pot Methodologies. J Org Chem 2023; 88:16091-16103. [PMID: 37910436 DOI: 10.1021/acs.joc.3c01337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
A versatile one-pot strategy for the generation of compounds of synthetic interest has been presented, promoting the development of practical processes. First, the transannulation of N-sulfonyltriazoles through alkenes and rhodium catalysis was described, giving 2,3-dihydropyrroles in 13-76% yield. As contributions of the strategy, the evaluation of alkenes with different properties, and the use of only drops of solvent (0.40 M) was highlighted. In addition, we described a methodology for the modulation of the N-sulfonyltriazoles, to obtain selectively cyclopropyl tosylimines or 2,3-dihydropyrroles. For the latter products, neat conditions were also included. Finally, the potential of the methodology was demonstrated by the synthesis of six structurally different analogues starting from the same substrates and late-stage transformation of bioactive molecules. These compounds were generated in 38-63% yield, after two or more conversion steps carried out in the same reaction vessel.
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Affiliation(s)
- Caterina Permingeat Squizatto
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Maira A Bianchini
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
| | - Carina M L Delpiccolo
- Instituto de Química Rosario, Facultad de Ciencias Bioquímicas y Farmacéuticas, Universidad Nacional de Rosario-CONICET, Suipacha 531, Rosario S2002LRK, Argentina
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12
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Lejault P, Prudent L, Terrier MP, Perreault JP. Small molecule chaperones facilitate the folding of RNA G-quadruplexes. Biochimie 2023; 214:83-90. [PMID: 37666291 DOI: 10.1016/j.biochi.2023.08.016] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 08/21/2023] [Accepted: 08/31/2023] [Indexed: 09/06/2023]
Abstract
RNA G-quadruplexes (rG4) have recently emerged as major regulatory elements in both mRNA and non-coding RNA. In order to investigate the biological roles of rG4 structures, chemists have developed a variety of highly specific and potent ligands. All of these ligands bind to the rG4s by stacking on top of them. The binding specificity is demonstrated by comparison to other structures such as duplex or three-way junctions. It remains unclear whether rG4-ligands merely stabilize fully formed rG4 structures, or if they actively participate in the folding of the rG4 structure through their association with an unfolded RNA sequence. In order to elucidate the innate steps of ligand-rG4 associations and mechanisms robust in vitro techniques, including FRET, electrophoretic mobility shift assays and reverse transcriptase stalling assays, were used to examine the capacity of five well-known G4 ligands to induce rG4 structures derived from either long non-coding RNAs or from synthetic RNAs. It was found that both PhenDC3 and PDS induce rG4 formation in single RNA strands. This discovery has important implications for the interpretation of RNA-seq experiments. Overall, in vitro data that can assist biochemists in selecting the optimal G4-ligands for their RNA cellular experiments are presented, and the effects induced by these ligands on the rG4s are also considered.
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Affiliation(s)
- Pauline Lejault
- Department of Biochemistry and Functional Genomics, Pavillon de Recherche Appliquée sur le Cancer, Université de Sherbrooke, Sherbrooke, Québec, J1E 4K8, Canada.
| | - Louis Prudent
- Department of Biochemistry and Functional Genomics, Pavillon de Recherche Appliquée sur le Cancer, Université de Sherbrooke, Sherbrooke, Québec, J1E 4K8, Canada
| | - Michel-Pierre Terrier
- Department of Biochemistry and Functional Genomics, Pavillon de Recherche Appliquée sur le Cancer, Université de Sherbrooke, Sherbrooke, Québec, J1E 4K8, Canada
| | - Jean-Pierre Perreault
- Department of Biochemistry and Functional Genomics, Pavillon de Recherche Appliquée sur le Cancer, Université de Sherbrooke, Sherbrooke, Québec, J1E 4K8, Canada.
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13
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Matos-Rodrigues G, Hisey JA, Nussenzweig A, Mirkin SM. Detection of alternative DNA structures and its implications for human disease. Mol Cell 2023; 83:3622-3641. [PMID: 37863029 DOI: 10.1016/j.molcel.2023.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/01/2023] [Accepted: 08/16/2023] [Indexed: 10/22/2023]
Abstract
Around 3% of the genome consists of simple DNA repeats that are prone to forming alternative (non-B) DNA structures, such as hairpins, cruciforms, triplexes (H-DNA), four-stranded guanine quadruplexes (G4-DNA), and others, as well as composite RNA:DNA structures (e.g., R-loops, G-loops, and H-loops). These DNA structures are dynamic and favored by the unwinding of duplex DNA. For many years, the association of alternative DNA structures with genome function was limited by the lack of methods to detect them in vivo. Here, we review the recent advancements in the field and present state-of-the-art technologies and methods to study alternative DNA structures. We discuss the limitations of these methods as well as how they are beginning to provide insights into causal relationships between alternative DNA structures, genome function and stability, and human disease.
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Affiliation(s)
| | - Julia A Hisey
- Department of Biology, Tufts University, Medford, MA, USA
| | - André Nussenzweig
- Laboratory of Genome Integrity, National Cancer Institute, NIH, Bethesda, MD, USA.
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14
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Li Y, Ling Y, Loehr MO, Chaabane S, Cheng OW, Zhao K, Wu C, Büscher M, Weber J, Stomakhine D, Munker M, Pientka R, Christ SB, Dobbelstein M, Luedtke NW. DNA templated Click Chemistry via 5-vinyl-2'-deoxyuridine and an acridine-tetrazine conjugate induces DNA damage and apoptosis in cancer cells. Life Sci 2023; 330:122000. [PMID: 37541577 DOI: 10.1016/j.lfs.2023.122000] [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: 04/02/2023] [Revised: 07/31/2023] [Accepted: 08/01/2023] [Indexed: 08/06/2023]
Abstract
AIMS Click Chemistry is providing valuable tools to biomedical research, but its direct use in therapies remains nearly unexplored. For cancer treatment, nucleoside analogues (NA) such as 5-vinyl-2'-deoxyuridine (VdU) can be metabolically incorporated into cancer cell DNA and subsequently "clicked" to form a toxic product. The inverse electron-demand Diels-Alder (IEDDA) reaction between VdU and an acridine-tetrazine conjugate (PINK) has previously been used to label cell nuclei of cultured cells. Here, we report tandem usage of VdU and PINK to induce cytotoxicity. MAIN METHODS Cell lines were subsequently treated with VdU and PINK, and cell viability was measured via well confluency and 3D tumor spheroid assays. DNA damage and apoptosis were evaluated using Western Blotting and cell cycle analysis by flow cytometry. Double stranded DNA break (DSB) formation was measured using the comet assay. Apoptosis was assessed by fluorescent detection of externalized phosphatidylserine residues. KEY FINDINGS We report that the combination of VdU and PINK synergistically induces cytotoxicity in cultured human cells. The combination of VdU and PINK strongly reduced cell viability in 2D and 3D cultured cancer cells. Mechanistically, the compounds induced DNA damage through DSB formation, which leads to S-phase accumulation and apoptosis. SIGNIFICANCE The combination of VdU and PINK represents a novel and promising DNA-templated "click" approach for cancer treatment via selective induction of DNA damage.
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Affiliation(s)
- Yizhu Li
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany.
| | - Yurong Ling
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Morten O Loehr
- Department of Chemistry, McGill University, 845 Sherbrooke St W, Montreal, Quebec H3A 0G4, Canada
| | - Sabrina Chaabane
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Oh Wan Cheng
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Kaifeng Zhao
- Department of Chemistry, McGill University, 845 Sherbrooke St W, Montreal, Quebec H3A 0G4, Canada
| | - Chao Wu
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Moritz Büscher
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Jana Weber
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Daria Stomakhine
- Department of Chemistry, McGill University, 845 Sherbrooke St W, Montreal, Quebec H3A 0G4, Canada
| | - Marina Munker
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Ronja Pientka
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Sarah B Christ
- 2(nd) Medical Clinic, Klinikum rechts der Isar, Technical University of Munich, Ismaninger Str. 22 81675 Munich, Germany
| | - Matthias Dobbelstein
- Department of Molecular Oncology, Göttingen Center of Molecular Biosciences (GZMB), University Medical Center Göttingen, 37077 Göttingen, Germany
| | - Nathan W Luedtke
- Department of Chemistry, McGill University, 845 Sherbrooke St W, Montreal, Quebec H3A 0G4, Canada; Department of Pharmacology and Therapeutics, McGill University, Montréal H3G 1Y6, Canada
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15
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Wang T, Wu M, Cao L, Liu B. Organic functional substance engineered living materials for biomedical applications. Biomaterials 2023; 301:122248. [PMID: 37487360 DOI: 10.1016/j.biomaterials.2023.122248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 07/09/2023] [Accepted: 07/16/2023] [Indexed: 07/26/2023]
Abstract
Modifying living materials with organic functional substances (OFS) is a convenient and effective strategy to control and monitor the transport, engraftment, and secretion processes in living organisms. OFSs, including small organic molecules and organic polymers, own the merit of design flexibility, satisfying performance, and excellent biocompatibility, which allow for living materials functionalization to realize real-time sensing, controlled drug release, enhanced biocompatibility, accurate diagnosis, and precise treatment. In this review, we discuss the different principles of OFS modification on living materials and demonstrate the applications of engineered living materials in health monitoring, drug delivery, wound healing, and tissue regeneration.
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Affiliation(s)
- Tongtong Wang
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Min Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China.
| | - Lei Cao
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore
| | - Bin Liu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China; Department of Chemical and Biomolecular Engineering, National University of Singapore, 4 Engineering Drive 4, 117585, Singapore.
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16
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Nicolau I, Hădade ND, Matache M, Funeriu DP. Synthetic Approaches of Epoxysuccinate Chemical Probes. Chembiochem 2023; 24:e202300157. [PMID: 37096389 DOI: 10.1002/cbic.202300157] [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: 02/26/2023] [Revised: 04/21/2023] [Accepted: 04/23/2023] [Indexed: 04/26/2023]
Abstract
Synthetic chemical probes are powerful tools for investigating biological processes. They are particularly useful for proteomic studies such as activity-based protein profiling (ABPP). These chemical methods initially used mimics of natural substrates. As the techniques gained prominence, more and more elaborate chemical probes with increased specificity towards given enzyme/protein families and amenability to various reaction conditions were used. Among the chemical probes, peptidyl-epoxysuccinates represent one of the first types of compounds used to investigate the activity of the cysteine protease papain-like family of enzymes. Structurally derived from the natural substrate, a wide body of inhibitors and activity- or affinity-based probes bearing the electrophilic oxirane unit for covalent labeling of active enzymes now exists. Herein, we review the literature regarding the synthetic approaches to epoxysuccinate-based chemical probes together with their reported applications, from biological chemistry and inhibition studies to supramolecular chemistry and the formation of protein arrays.
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Affiliation(s)
- Ioana Nicolau
- University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry, 90 Panduri Street, 050663, Bucharest, Romania
| | - Niculina D Hădade
- Babes-Bolyai University, Faculty of Chemistry and Chemical Engineering, Supramolecular and Organometallic Chemistry Centre, 11 Arany Janos Street, 400028, Cluj-Napoca, Romania
| | - Mihaela Matache
- University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry, 90 Panduri Street, 050663, Bucharest, Romania
| | - Daniel P Funeriu
- University of Bucharest, Faculty of Chemistry, Department of Organic Chemistry, Biochemistry and Catalysis, Research Centre of Applied Organic Chemistry, 90 Panduri Street, 050663, Bucharest, Romania
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17
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Auvray M, Naud-Martin D, Fontaine G, Bolze F, Clavier G, Mahuteau-Betzer F. Ultrabright two-photon excitable red-emissive fluorogenic probes for fast and wash-free bioorthogonal labelling in live cells. Chem Sci 2023; 14:8119-8128. [PMID: 37538830 PMCID: PMC10395273 DOI: 10.1039/d3sc01754k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 07/03/2023] [Indexed: 08/05/2023] Open
Abstract
Fluorogenic bioorthogonal reactions are promising tools for tracking small molecules or biomolecules in living organisms. Two-photon excitation, by shifting absorption towards the red, significantly increases the signal-to-noise ratio and decreases photodamage, while allowing imaging about 10 times deeper than with a confocal microscope. However, efficient two-photon excitable fluorogenic probes are currently lacking. We report here the design and synthesis of fluorogenic probes based on a two-photon excitable fluorophore and a tetrazine quenching moiety. These probes react with bicyclo[6.1.0]no-4-yn-9ylmethanol (BCN) with a good to impressive kinetic rate constant (up to 1.1 × 103 M-1 s-1) and emit in the red window with moderate to high turn-on ratios. TDDFT allowed the rationalization of both the kinetic and fluorogenic performance of the different probes. The best candidate displays a 13.8-fold turn-on measured by quantifying fluorescence intensities in live cells under one-photon excitation, whereas a value of 3 is sufficient for high contrast live-cell imaging. In addition, live-cell imaging under two-photon excitation confirmed that there was no need for washing to monitor the reaction between BCN and this probe since an 8.0-fold turn-on was measured under two-photon excitation. Finally, the high two-photon brightness of the clicked adduct (>300 GM) allows the use of a weak laser power compatible with in vivo imaging.
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Affiliation(s)
- Marie Auvray
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Delphine Naud-Martin
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Gaëlle Fontaine
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
| | - Frédéric Bolze
- UMR7199, Faculté de Pharmacie 67401 Illkirch-Graffenstaden France
| | | | - Florence Mahuteau-Betzer
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer Institut Curie, Université PSL 91400 Orsay France
- CNRS UMR9187, Inserm U1196, Chemistry and Modeling for the Biology of Cancer, Université Paris-Saclay 91400 Orsay France
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18
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Rota Sperti F, Mitteaux J, Zell J, Pipier A, Valverde IE, Monchaud D. The multivalent G-quadruplex (G4)-ligands MultiTASQs allow for versatile click chemistry-based investigations. RSC Chem Biol 2023; 4:456-465. [PMID: 37415864 PMCID: PMC10320843 DOI: 10.1039/d3cb00009e] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 05/12/2023] [Indexed: 07/08/2023] Open
Abstract
Chemical biology hinges on multivalent molecular tools that can specifically interrogate and/or manipulate cellular circuitries from the inside. The success of many of these approaches relies on molecular tools that make it possible to visualize biological targets in cells and then isolate them for identification purposes. To this end, click chemistry has become in just a few years a vital tool in offering practically convenient solutions to address highly complicated biological questions. We report here on two clickable molecular tools, the biomimetic G-quadruplex (G4) ligands MultiTASQ and azMultiTASQ, which benefit from the versatility of two types of bioorthogonal chemistry, CuAAC and SPAAC (the discovery of which was very recently awarded the Nobel Prize of chemistry). These two MultiTASQs are used here to both visualize G4s in and identify G4s from human cells. To this end, we developed click chemo-precipitation of G-quadruplexes (G4-click-CP) and in situ G4 click imaging protocols, which provide unique insights into G4 biology in a straightforward and reliable manner.
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Affiliation(s)
- Francesco Rota Sperti
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
| | - Jérémie Mitteaux
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
| | - Joanna Zell
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
| | - Angélique Pipier
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
| | - Ibai E Valverde
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
| | - David Monchaud
- ICMUB, CNRS UMR6302, Université de Bourgogne 9 Avenue Alain Savary 21078 Dijon France
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19
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Bustin KA, Shishikura K, Chen I, Lin Z, McKnight N, Chang Y, Wang X, Li JJ, Arellano E, Pei L, Morton PD, Gregus AM, Buczynski MW, Matthews ML. Phenelzine-based probes reveal Secernin-3 is involved in thermal nociception. Mol Cell Neurosci 2023; 125:103842. [PMID: 36924917 PMCID: PMC10247460 DOI: 10.1016/j.mcn.2023.103842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 03/05/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
Chemical platforms that facilitate both the identification and elucidation of new areas for therapeutic development are necessary but lacking. Activity-based protein profiling (ABPP) leverages active site-directed chemical probes as target discovery tools that resolve activity from expression and immediately marry the targets identified with lead compounds for drug design. However, this approach has traditionally focused on predictable and intrinsic enzyme functionality. Here, we applied our activity-based proteomics discovery platform to map non-encoded and post-translationally acquired enzyme functionalities (e.g. cofactors) in vivo using chemical probes that exploit the nucleophilic hydrazine pharmacophores found in a classic antidepressant drug (e.g. phenelzine, Nardil®). We show the probes are in vivo active and can map proteome-wide tissue-specific target engagement of the drug. In addition to engaging targets (flavoenzymes monoamine oxidase A/B) that are associated with the known therapeutic mechanism as well as several other members of the flavoenzyme family, the probes captured the previously discovered N-terminal glyoxylyl (Glox) group of Secernin-3 (SCRN3) in vivo through a divergent mechanism, indicating this functional feature has biochemical activity in the brain. SCRN3 protein is ubiquitously expressed in the brain, yet gene expression is regulated by inflammatory stimuli. In an inflammatory pain mouse model, behavioral assessment of nociception showed Scrn3 male knockout mice selectively exhibited impaired thermal nociceptive sensitivity. Our study provides a guided workflow to entangle molecular (off)targets and pharmacological mechanisms for therapeutic development.
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Affiliation(s)
- Katelyn A Bustin
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Kyosuke Shishikura
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Irene Chen
- School of Neuroscience, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA
| | - Zongtao Lin
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Nate McKnight
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yuxuan Chang
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Xie Wang
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jing Jing Li
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Eric Arellano
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Liming Pei
- Center for Mitochondrial and Epigenomic Medicine, Children's Hospital of Philadelphia, Philadelphia, PA 19104, USA
| | - Paul D Morton
- Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Polytechnic and State University, Blacksburg, VA, 24060, USA
| | - Ann M Gregus
- School of Neuroscience, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA.
| | - Matthew W Buczynski
- School of Neuroscience, Virginia Polytechnic and State University, Blacksburg, VA 24061, USA.
| | - Megan L Matthews
- Department of Chemistry, University of Pennsylvania, Philadelphia, PA 19104, USA.
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20
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Solier S, Müller S, Cañeque T, Versini A, Mansart A, Sindikubwabo F, Baron L, Emam L, Gestraud P, Pantoș GD, Gandon V, Gaillet C, Wu TD, Dingli F, Loew D, Baulande S, Durand S, Sencio V, Robil C, Trottein F, Péricat D, Näser E, Cougoule C, Meunier E, Bègue AL, Salmon H, Manel N, Puisieux A, Watson S, Dawson MA, Servant N, Kroemer G, Annane D, Rodriguez R. A druggable copper-signalling pathway that drives inflammation. Nature 2023; 617:386-394. [PMID: 37100912 PMCID: PMC10131557 DOI: 10.1038/s41586-023-06017-4] [Citation(s) in RCA: 72] [Impact Index Per Article: 72.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 03/27/2023] [Indexed: 04/28/2023]
Abstract
Inflammation is a complex physiological process triggered in response to harmful stimuli1. It involves cells of the immune system capable of clearing sources of injury and damaged tissues. Excessive inflammation can occur as a result of infection and is a hallmark of several diseases2-4. The molecular bases underlying inflammatory responses are not fully understood. Here we show that the cell surface glycoprotein CD44, which marks the acquisition of distinct cell phenotypes in the context of development, immunity and cancer progression, mediates the uptake of metals including copper. We identify a pool of chemically reactive copper(II) in mitochondria of inflammatory macrophages that catalyses NAD(H) redox cycling by activating hydrogen peroxide. Maintenance of NAD+ enables metabolic and epigenetic programming towards the inflammatory state. Targeting mitochondrial copper(II) with supformin (LCC-12), a rationally designed dimer of metformin, induces a reduction of the NAD(H) pool, leading to metabolic and epigenetic states that oppose macrophage activation. LCC-12 interferes with cell plasticity in other settings and reduces inflammation in mouse models of bacterial and viral infections. Our work highlights the central role of copper as a regulator of cell plasticity and unveils a therapeutic strategy based on metabolic reprogramming and the control of epigenetic cell states.
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Affiliation(s)
- Stéphanie Solier
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Sebastian Müller
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Tatiana Cañeque
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Antoine Versini
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Arnaud Mansart
- Paris Saclay University, UVSQ, INSERM, 2I, Montigny-le-Bretonneux, France
| | - Fabien Sindikubwabo
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Leeroy Baron
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Laila Emam
- Paris Saclay University, UVSQ, INSERM, 2I, Montigny-le-Bretonneux, France
| | - Pierre Gestraud
- CBIO-Centre for Computational Biology, Institut Curie, INSERM, Mines ParisTech, Paris, France
| | - G Dan Pantoș
- Department of Chemistry, University of Bath, Bath, UK
| | - Vincent Gandon
- Institut de Chimie Moléculaire et des Matériaux d'Orsay, CNRS, Paris Saclay University, Orsay, France
- Laboratoire de Chimie Moléculaire, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Christine Gaillet
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Ting-Di Wu
- Institut Curie, PSL Research University, Paris, France
- Multimodal Imaging Center, Paris Saclay University, CNRS, INSERM, Orsay, France
| | - Florent Dingli
- CurieCoreTech Mass Spectrometry Proteomic, Institut Curie, PSL Research University, Paris, France
| | - Damarys Loew
- CurieCoreTech Mass Spectrometry Proteomic, Institut Curie, PSL Research University, Paris, France
| | - Sylvain Baulande
- ICGex Next-Generation Sequencing Platform, Institut Curie, PSL Research University, Paris, France
| | - Sylvère Durand
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
| | - Valentin Sencio
- Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, CIIL, Lille, France
| | - Cyril Robil
- Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, CIIL, Lille, France
| | - François Trottein
- Université de Lille, CNRS, INSERM, CHU Lille, Institut Pasteur de Lille, CIIL, Lille, France
| | - David Péricat
- Institut of Pharmacology and Structural Biology, University of Toulouse, CNRS, Toulouse, France
| | - Emmanuelle Näser
- Institut of Pharmacology and Structural Biology, University of Toulouse, CNRS, Toulouse, France
- Cytometry and Imaging Core facility, Institute of Pharmacology and Structural Biology, University of Toulouse, CNRS, Toulouse, France
| | - Céline Cougoule
- Institut of Pharmacology and Structural Biology, University of Toulouse, CNRS, Toulouse, France
| | - Etienne Meunier
- Institut of Pharmacology and Structural Biology, University of Toulouse, CNRS, Toulouse, France
| | | | - Hélène Salmon
- Institut Curie, INSERM, PSL Research University, Paris, France
| | - Nicolas Manel
- Institut Curie, INSERM, PSL Research University, Paris, France
| | - Alain Puisieux
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France
| | - Sarah Watson
- Department of Medical Oncology, Institut Curie, PSL Research University, Paris, France
| | - Mark A Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, Melbourne, Victoria, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Nicolas Servant
- CBIO-Centre for Computational Biology, Institut Curie, INSERM, Mines ParisTech, Paris, France
| | - Guido Kroemer
- Metabolomics and Cell Biology Platforms, Institut Gustave Roussy, Villejuif, France
- Centre de Recherche des Cordeliers, University of Paris, Sorbonne University, INSERM, Institut Universitaire de France, Paris, France
- Institut du Cancer Paris CARPEM, Department of Biology, Hôpital Européen Georges Pompidou, AP-HP, Paris, France
| | - Djillali Annane
- Paris Saclay University, UVSQ, INSERM, 2I, Montigny-le-Bretonneux, France
- Department of Intensive Care, Hôpital Raymond Poincaré, AP-HP, Garches, France
| | - Raphaël Rodriguez
- Equipe Labellisée Ligue Contre le Cancer, Institut Curie, CNRS, INSERM, PSL Research University, Paris, France.
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21
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Zhao Z, Wang D, Li Y. Versatile biomimetic nanomedicine for treating cancer and inflammation disease. MEDICAL REVIEW (2021) 2023; 3:123-151. [PMID: 37724085 PMCID: PMC10471090 DOI: 10.1515/mr-2022-0046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Accepted: 02/11/2023] [Indexed: 09/20/2023]
Abstract
Nanosized drug delivery systems (NDDSs) have emerged as a powerful tool to optimize drug delivery in complex diseases, including cancer and inflammation. However, the therapeutic effect of NDDSs is still far from satisfactory due to their poor circulation time, low delivery efficiency, and innate toxicity. Fortunately, biomimetic approaches offer new opportunities to develop nanomedicine, which is derived from a variety of native biomolecules including cells, exosomes, bacteria, and so on. Since inheriting the superior biocompatibility and versatile functions of natural materials, biomimetic nanomedicine can mimic biological processes, prolong blood circulation, and lower immunogenicity, serving as a desired platform for precise drug delivery for treating cancer and inflammatory disease. In this review, we outline recent advances in biomimetic NDDSs, which consist of two concepts: biomimetic exterior camouflage and bioidentical molecule construction. We summarize engineering strategies that further functionalized current biomimetic NDDSs. A series of functional biomimetic NDDSs created by our group are introduced. We conclude with an outlook on remaining challenges and possible directions for biomimetic NDDSs. We hope that better technologies can be inspired and invented to advance drug delivery systems for cancer and inflammation therapy.
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Affiliation(s)
- Zhiwen Zhao
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Dangge Wang
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai, China
| | - Yaping Li
- State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
- University of Chinese Academy of Sciences, Beijing, China
- Shandong Laboratory of Yantai Drug Discovery, Bohai Rim Advanced Research Institute for Drug Discovery, Yantai, China
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22
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Monchaud D. Template-Assembled Synthetic G-Quartets (TASQs): multiTASQing Molecular Tools for Investigating DNA and RNA G-Quadruplex Biology. Acc Chem Res 2023; 56:350-362. [PMID: 36662540 DOI: 10.1021/acs.accounts.2c00757] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Biomimetics is defined as a "practice of making technological design that copies natural processes", with the idea that "nature has already solved the challenges we are trying to solve" (Cambridge Dictionary). The challenge we decided to address several years ago was the selective targeting of G quadruplexes (G4s) by small molecules (G4 ligands). Why? Because G4s, which are four-stranded DNA and RNA structures that fold from guanine (G)-rich sequences, are suspected to play key biological roles in human cells and diseases. Selective G4 ligands can thus be used as small-molecule modulators to gain a deep understanding of cell circuitry where G4s are involved, thus complying with the very definition of chemical biology (Stuart Schreiber) applied here to G4 biology. How? Following a biomimetic approach that hinges on the observation that G4s are stable secondary structures owing to the ability of Gs to self-associate to form G quartets, and then of G quartets to self-stack to form the columnar core of G4s. Therefore, using a synthetic G quartet as a G4 ligand represents a unique example of biomimetic recognition of G4s.We formulated this hypothesis more than a decade ago, stepping on years of research on Gs, G4s, and G4 ligands. Our approach led to the design, synthesis, and use of a broad family of synthetic G quartets, also referred to as TASQs for template-assembled synthetic G quartets (John Sherman). This quest led us across various chemical lands (organic and supramolecular chemistry, chemical biology, and genetics), along a route on which every new generation of TASQ was a milestone in the growing portfolio of ever smarter molecular tools to decipher G4 biology. As discussed in this Account, we detail how and why we successively develop the very first prototypes of (i) biomimetic ligands, which interact with G4s according to a bioinspired, like-likes-like interaction between two G quartets, one from the ligand, the other from the G4; (ii) smart ligands, which adopt their active conformation only in the presence of their G4 targets; (iii) twice-as-smart ligands, which act as both smart ligands and smart fluorescent probes, whose fluorescence is triggered (turned on) upon interaction with their G4 targets; and (iv) multivalent ligands, which display additional functionalities enabling the detection, isolation, and identification of G4s both in vitro and in vivo. This quest led us to gather a panel of 14 molecular tools which were used to investigate the biology of G4s at a cellular level, from basic optical imaging to multiomics studies.
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Affiliation(s)
- David Monchaud
- ICMUB, CNRS UMR6302, Université de Bourgogne, 21078 Dijon, France
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23
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Bustin KA, Shishikura K, Chen I, Lin Z, McKnight N, Chang Y, Wang X, Li JJ, Arellano E, Pei L, Morton PD, Gregus AM, Buczynski MW, Matthews ML. Phenelzine-based probes reveal Secernin-3 is involved in thermal nociception. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.02.526866. [PMID: 36778412 PMCID: PMC9915563 DOI: 10.1101/2023.02.02.526866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Chemical platforms that facilitate both the identification and elucidation of new areas for therapeutic development are necessary but lacking. Activity-based protein profiling (ABPP) leverages active site-directed chemical probes as target discovery tools that resolve activity from expression and immediately marry the targets identified with lead compounds for drug design. However, this approach has traditionally focused on predictable and intrinsic enzyme functionality. Here, we applied our activity-based proteomics discovery platform to map non-encoded and post-translationally acquired enzyme functionalities (e.g. cofactors) in vivo using chemical probes that exploit the nucleophilic hydrazine pharmacophores found in a classic antidepressant drug (e.g. phenelzine, Nardil ® ). We show the probes are in vivo active and can map proteome-wide tissue-specific target engagement of the drug. In addition to engaging targets (flavoenzymes monoamine oxidase A/B) that are associated with the known therapeutic mechanism as well as several other members of the flavoenzyme family, the probes captured the previously discovered N -terminal glyoxylyl (Glox) group of Secernin-3 (SCRN3) in vivo through a divergent mechanism, indicating this functional feature has biochemical activity in the brain. SCRN3 protein is ubiquitously expressed in the brain, yet gene expression is regulated by inflammatory stimuli. In an inflammatory pain mouse model, behavioral assessment of nociception showed Scrn3 male knockout mice selectively exhibited impaired thermal nociceptive sensitivity. Our study provides a guided workflow to entangle molecular (off)targets and pharmacological mechanisms for therapeutic development.
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24
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Li L, Li J, Ma L, Shang H, Zou Z. SAR-guided development of indole-matrine hybrids as potential anticancer agents via mitochondrial stress/cytochrome c/caspase 3 signaling pathway. Bioorg Chem 2023; 134:106341. [PMID: 36842321 DOI: 10.1016/j.bioorg.2023.106341] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 12/31/2022] [Accepted: 01/02/2023] [Indexed: 01/06/2023]
Abstract
Matrine is a clinically used adjuvant anticancer drug, yet its mild potency limited its application. To improve the anticancer activity of matrine, a total of 31 indole-matrine hybrids were constructed in four rounds of SAR-guided iterative structural optimization process. All of the synthesized compounds were evaluated for their antiproliferative activities against a panel of four human cancer cell lines (Hela, MCF-7, SGC-7901, HepG2) and two normal cell lines (GES-1, LO2). The most active hybrid 8g exhibited the anticancer IC50 values of 0.9 to 1.2 μM, which was 3-magnitude of orders more potent than matrine. 8g also showed better selectivity towards cancer cells with the selectivity index value raised from 1.5 to 6.2. Mechanistic studies demonstrated a mitochondrial distribution for 8g by intracellular click chemistry approaches, which led to the discovery that 8g strongly induced mitochondrial stress, as evidenced by impaired energy metabolism, depolarized mitochondrial membrane potential, overload of mitochondrial calcium and escalated ROS production. 8g-induced mitochondrial stress further led to the release of cytochrome c and subsequent activation of caspase 3, which significantly promoted cellular death and inhibited colony formation.
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Affiliation(s)
- Lingyu Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Jingrong Li
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Liyan Ma
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
| | - Hai Shang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
| | - Zhongmei Zou
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, China; State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China.
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25
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McQuaid K, Pipier A, Cardin C, Monchaud D. Interactions of small molecules with DNA junctions. Nucleic Acids Res 2022; 50:12636-12656. [PMID: 36382400 PMCID: PMC9825177 DOI: 10.1093/nar/gkac1043] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 10/13/2022] [Accepted: 10/23/2022] [Indexed: 11/17/2022] Open
Abstract
The four natural DNA bases (A, T, G and C) associate in base pairs (A=T and G≡C), allowing the attached DNA strands to assemble into the canonical double helix of DNA (or duplex-DNA, also known as B-DNA). The intrinsic supramolecular properties of nucleobases make other associations possible (such as base triplets or quartets), which thus translates into a diversity of DNA structures beyond B-DNA. To date, the alphabet of DNA structures is ripe with approximately 20 letters (from A- to Z-DNA); however, only a few of them are being considered as key players in cell biology and, by extension, valuable targets for chemical biology intervention. In the present review, we summarise what is known about alternative DNA structures (what are they? When, where and how do they fold?) and proceed to discuss further about those considered nowadays as valuable therapeutic targets. We discuss in more detail the molecular tools (ligands) that have been recently developed to target these structures, particularly the three- and four-way DNA junctions, in order to intervene in the biological processes where they are involved. This new and stimulating chemical biology playground allows for devising innovative strategies to fight against genetic diseases.
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Affiliation(s)
- Kane T McQuaid
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - Angélique Pipier
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), CNRS UMR 6302, UBFC Dijon, 21078 Dijon, France
| | - Christine J Cardin
- Department of Chemistry, University of Reading, Whiteknights, Reading RG6 6AD, UK
| | - David Monchaud
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), CNRS UMR 6302, UBFC Dijon, 21078 Dijon, France
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26
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Ko J, Wilkovitsch M, Oh J, Kohler RH, Bolli E, Pittet MJ, Vinegoni C, Sykes DB, Mikula H, Weissleder R, Carlson JCT. Spatiotemporal multiplexed immunofluorescence imaging of living cells and tissues with bioorthogonal cycling of fluorescent probes. Nat Biotechnol 2022; 40:1654-1662. [PMID: 35654978 PMCID: PMC9669087 DOI: 10.1038/s41587-022-01339-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 04/28/2022] [Indexed: 02/07/2023]
Abstract
Cells in complex organisms undergo frequent functional changes, but few methods allow comprehensive longitudinal profiling of living cells. Here we introduce scission-accelerated fluorophore exchange (SAFE), a method for multiplexed temporospatial imaging of living cells with immunofluorescence. SAFE uses a rapid bioorthogonal click chemistry to remove immunofluorescent signals from the surface of labeled cells, cycling the nanomolar-concentration reagents in seconds and enabling multiple rounds of staining of the same samples. It is non-toxic and functional in both dispersed cells and intact living tissues. We demonstrate multiparameter (n ≥ 14), non-disruptive imaging of murine peripheral blood mononuclear and bone marrow cells to profile cellular differentiation. We also show longitudinal multiplexed imaging of bone marrow progenitor cells as they develop into neutrophils over 6 days and real-time multiplexed cycling of living mouse hepatic tissues. We anticipate that SAFE will find broad utility for investigating physiologic dynamics in living systems.
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Affiliation(s)
- Jina Ko
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | | | - Juhyun Oh
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Rainer H Kohler
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - Evangelia Bolli
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Mikael J Pittet
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
- Ludwig Institute for Cancer Research, Lausanne Branch, Zurich, Switzerland
- AGORA Cancer Center, Lausanne, Switzerland
| | - Claudio Vinegoni
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | - David B Sykes
- Center for Regenerative Medicine, Massachusetts General Hospital, Boston, MA, USA
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Hannes Mikula
- Institute of Applied Synthetic Chemistry, TU Wien, Vienna, Austria
| | - Ralph Weissleder
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Department of Systems Biology, Harvard Medical School, Boston, MA, USA.
| | - Jonathan C T Carlson
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA.
- Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.
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27
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Li L, Li M, Wang M, Zhang L, Yu Y, Zhang J, Ma B, Wang W. A "Cell Space Station" for Spatiotemporal Molecular Manipulation of Immune Checkpoint. ACS NANO 2022; 16:16332-16342. [PMID: 36194211 DOI: 10.1021/acsnano.2c05483] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Spatiotemporal manipulation of protein distributions, abundances, and functions based on molecular level remains a significant challenge in studying biological systems and developing therapeutics. Particularly, such a nanotherapeutic platform though both specific and internal way is extremely lacking. Herein, we put forward a click chemistry-driven protein sorting (PROCLISORT) strategy, which acted in a cell space station (CSS) to achieve the sequential regulation of specific protein along the entire PD-1 immune checkpoint axis. From the spatial dimension, CSS could achieve comprehensive recognition, anchoring and blocking PD-L1/PD-L2 as well as transport PD-L1 among organelles at the subcellular level. From the time dimension, through the booting control via click reaction, the occurrence of these biological regulatory events became controllable and sequential, thus resulting in rapid and durable down-regulation of PD-L1. Through these smart tasks, this CSS stimulated a satisfactory tumor-immune-therapy effect both in vitro and in vivo. With a rational design, this multistage booting nanoplatform holds promise for molecular manipulation along the disease-related pathway in various living systems.
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Affiliation(s)
- Lingyun Li
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Mengzhen Li
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Minxuan Wang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Limin Zhang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Yao Yu
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Jiatao Zhang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Bing Ma
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
| | - Weizhi Wang
- Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering, Ministry of Industry and Information Technology, Key Laboratory of Cluster Science of Ministry of Education, Beijing Key laboratory of Photoelectronic/Electro-photonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 100081, People's Republic of China
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28
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Jin G, Sun D, Xia X, Jiang Z, Cheng B, Ning Y, Wang F, Zhao Y, Chen X, Zhang J. Bioorthogonal Lanthanide Molecular Probes for Near‐Infrared Fluorescence and Mass Spectrometry Imaging. Angew Chem Int Ed Engl 2022; 61:e202208707. [DOI: 10.1002/anie.202208707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Guo‐Qing Jin
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
| | - De‐en Sun
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
- Synthetic and Functional Biomolecules Center Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Peking University Beijing 100871 P. R. China
| | - Xiaoqian Xia
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
- Synthetic and Functional Biomolecules Center Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Peking University Beijing 100871 P. R. China
| | - Zhi‐Fan Jiang
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
| | - Bo Cheng
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
- Synthetic and Functional Biomolecules Center Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Peking University Beijing 100871 P. R. China
| | - Yingying Ning
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
| | - Fuyi Wang
- Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences National Centre for Mass Spectrometry in Beijing CAS Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Yao Zhao
- Beijing National Laboratory for Molecular Sciences CAS Research/Education Center for Excellence in Molecular Sciences National Centre for Mass Spectrometry in Beijing CAS Key Laboratory of Analytical Chemistry for Living Biosystems Institute of Chemistry Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Xing Chen
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
- Synthetic and Functional Biomolecules Center Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education Peking University Beijing 100871 P. R. China
- Peking-Tsinghua Center for Life Sciences Beijing 100871 P. R. China
| | - Jun‐Long Zhang
- College of Chemistry and Molecular Engineering Beijing National Laboratory for Molecular Sciences Peking University Beijing 100871 P. R. China
- Chemistry and Chemical Engineering Guangdong Laboratory Shantou 515031 P. R. China
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29
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Jin GQ, Sun DE, Xia X, Jiang ZF, Cheng B, Ning Y, Wang F, Zhao Y, Chen X, Zhang JL. Bioorthogonal Lanthanide Molecular Probes for Near‐Infrared Fluorescence and Mass Spectrometry Imaging. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202208707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guo-Qing Jin
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - De-en Sun
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Xiaoqian Xia
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Zhi-Fan Jiang
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Bo Cheng
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Yingying Ning
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Fuyi Wang
- Institute of Chemistry Chinese Academy of Sciences Beijing National Laboratory for Molecular Sciences CHINA
| | - Yao Zhao
- Institute of Chemistry Chinese Academy of Sciences Beijing National Laboratory for Molecular Sciences CHINA
| | - Xing Chen
- Peking University College of Chemistry and Molecular Engineering CHINA
| | - Jun-Long Zhang
- Peking University College of Chemistry and Molecular Engineering Chengfu Road 202 100871 Beijing CHINA
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30
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Peng M, Wang Z, Sun X, Guo X, Wang H, Li R, Liu Q, Chen M, Chen X. Deep Learning-Based Label-Free Surface-Enhanced Raman Scattering Screening and Recognition of Small-Molecule Binding Sites in Proteins. Anal Chem 2022; 94:11483-11491. [PMID: 35968807 DOI: 10.1021/acs.analchem.2c01158] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Identification of small-molecule binding sites in proteins is of great significance in analysis of protein function and drug design. Modified sites can be recognized via proteolytic cleavage followed by liquid chromatography-mass spectrometry (LC-MS); however, this has always been impeded by the complexity of peptide mixtures and the elaborate synthetic design for tags. Here, we demonstrate a novel technique for identifying protein binding sites using a deep learning-based label-free surface-enhanced Raman scattering (SERS) screening (DLSS) strategy. In DLSS, the deep learning model that was trained with large SERS signals could detect signal features of small molecules with high accuracy (>99%). Without any secondary tag, the small molecules are directly complexed with proteins. After proteolysis and LC, SERS signals of all LC fractions are collected and input into the model, whereby the fractions containing the small-molecule-modified peptides can be recognized by the model and sent to MS/MS to identify the binding site(s). By using an automated DLSS system, we successfully identified the modification sites of fomepizole in alcohol dehydrogenase, which is coordinated with zinc along with three peptides. We also showed that the DLSS strategy works for identification of amino-acid residues that covalently bond with ibrutinib in Bruton tyrosine kinase. These results suggest that the DLSS strategy, which provides high molecular recognition capability to LC-MS analysis, has potential in drug discovery, proteomics, and metabolomics.
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Affiliation(s)
- Mei Peng
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Zi Wang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Xiaotong Sun
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Xiangwei Guo
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Haoyang Wang
- School of Life Sciences, Central South University, Changsha 410013, China
| | - Ruili Li
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Qi Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
| | - Miao Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.,School of Life Sciences, Central South University, Changsha 410013, China
| | - Xiaoqing Chen
- College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China
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31
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A versatile fluorescence-quenched substrate for quantitative measurement of glucocerebrosidase activity within live cells. Proc Natl Acad Sci U S A 2022; 119:e2200553119. [PMID: 35858317 PMCID: PMC9304032 DOI: 10.1073/pnas.2200553119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Loss of activity of the lysosomal glycosidase β-glucocerebrosidase (GCase) causes the lysosomal storage disease Gaucher disease (GD) and has emerged as the greatest genetic risk factor for the development of both Parkinson disease (PD) and dementia with Lewy bodies. There is significant interest into how GCase dysfunction contributes to these diseases, however, progress toward a full understanding is complicated by presence of endogenous cellular factors that influence lysosomal GCase activity. Indeed, such factors are thought to contribute to the high degree of variable penetrance of GBA mutations among patients. Robust methods to quantitatively measure GCase activity within lysosomes are therefore needed to advance research in this area, as well as to develop clinical assays to monitor disease progression and assess GCase-directed therapeutics. Here, we report a selective fluorescence-quenched substrate, LysoFQ-GBA, which enables measuring endogenous levels of lysosomal GCase activity within living cells. LysoFQ-GBA is a sensitive tool for studying chemical or genetic perturbations of GCase activity using either fluorescence microscopy or flow cytometry. We validate the quantitative nature of measurements made with LysoFQ-GBA using various cell types and demonstrate that it accurately reports on both target engagement by GCase inhibitors and the GBA allele status of cells. Furthermore, through comparisons of GD, PD, and control patient-derived tissues, we show there is a close correlation in the lysosomal GCase activity within monocytes, neuronal progenitor cells, and neurons. Accordingly, analysis of clinical blood samples using LysoFQ-GBA may provide a surrogate marker of lysosomal GCase activity in neuronal tissue.
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32
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Antoszczak M, Müller S, Cañeque T, Colombeau L, Dusetti N, Santofimia-Castaño P, Gaillet C, Puisieux A, Iovanna JL, Rodriguez R. Iron-Sensitive Prodrugs That Trigger Active Ferroptosis in Drug-Tolerant Pancreatic Cancer Cells. J Am Chem Soc 2022; 144:11536-11545. [PMID: 35696539 DOI: 10.1021/jacs.2c03973] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Persister cancer cells represent rare populations of cells resistant to therapy. Cancer cells can exploit epithelial-mesenchymal plasticity to adopt a drug-tolerant state that does not depend on genetic alterations. Small molecules that can interfere with cell plasticity or kill cells in a cell state-dependent manner are highly sought after. Salinomycin has been shown to kill cancer cells in the mesenchymal state by sequestering iron in lysosomes, taking advantage of the iron addiction of this cell state. Here, we report the chemo- and stereoselective synthesis of a series of structurally complex small molecule chimeras of salinomycin derivatives and the iron-reactive dihydroartemisinin. We show that these chimeras accumulate in lysosomes and can react with iron to release bioactive species, thereby inducing ferroptosis in drug-tolerant pancreatic cancer cells and biopsy-derived organoids of pancreatic ductal adenocarcinoma. This work paves the way toward the development of new cancer medicines acting through active ferroptosis.
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Affiliation(s)
- Michał Antoszczak
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Sebastian Müller
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Tatiana Cañeque
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Ludovic Colombeau
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Nelson Dusetti
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Patricia Santofimia-Castaño
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Christine Gaillet
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Alain Puisieux
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
| | - Juan Lucio Iovanna
- CRCM, CNRS UMR 7258, INSERM U1068, Aix-Marseille Université and Institut Paoli-Calmettes, Parc Scientifique et Technologique de Luminy, 163 Avenue de Luminy, 13288 Marseille, France
| | - Raphaël Rodriguez
- Department of Chemical Biology, Institut Curie, CNRS UMR 3666, INSERM U1143, PSL Université, 26 rue d'Ulm, 75005 Paris, France
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33
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Wang S, Li Y, Zhou H, Wang L, Wang R. Development of Biocompatible Ene-Ligation Enabled by Prenyl-Based β-Caryophyllene with Triazoline/Selectfluor under Physiological Conditions. J Org Chem 2022; 87:8648-8655. [PMID: 35708493 DOI: 10.1021/acs.joc.2c00841] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Here, we first report a rapid and highly selective biocompatible ligation that proceeds via a strain-promoted prenyl-involved [2, 3]-Ene rearrangement process. We demonstrate the usefulness of naturally occurring strain-promoted β-caryophyllene with triazoline (PTAD)/Selectfluor in the study of tagging molecule-of-interest. Experiments in peptide (Histone H3 (1-21) and Myhc (614-629)) and protein (BSA, βLG, and HSP40) models exemplified the utility of the Ene-ligation for in vivo imaging and tracking.
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Affiliation(s)
- Sheng Wang
- The Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Yuanyuan Li
- The Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Hongling Zhou
- The Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China
| | - Li Wang
- Wuhan No. 1 Hospital, Huazhong University of Science and Technology, Wuhan, Hubei 430022, China
| | - Rui Wang
- The Hubei Key Laboratory of Natural Medicinal Chemistry and Resource Evaluation, School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430030, China.,Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen, Guangdong 518057, China
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34
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Klier PEZ, Gest AMM, Martin JG, Roo R, Navarro MX, Lesiak L, Deal PE, Dadina N, Tyson J, Schepartz A, Miller EW. Bioorthogonal, Fluorogenic Targeting of Voltage-Sensitive Fluorophores for Visualizing Membrane Potential Dynamics in Cellular Organelles. J Am Chem Soc 2022; 144:12138-12146. [PMID: 35776693 DOI: 10.1021/jacs.2c02664] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Electrical potential differences across lipid bilayers play foundational roles in cellular physiology. Plasma membrane voltage is the most widely studied; however, the bilayers of organelles like mitochondria, lysosomes, nuclei, and the endoplasmic reticulum (ER) also provide opportunities for ionic compartmentalization and the generation of transmembrane potentials. Unlike plasma membranes, organellar bilayers, cloistered within the cell, remain recalcitrant to traditional approaches like patch-clamp electrophysiology. To address the challenge of monitoring changes in organelle membrane potential, we describe the design, synthesis, and application of the LUnAR RhoVR (Ligation Unquenched for Activation and Redistribution Rhodamine-based Voltage Reporter) for optically monitoring membrane potential changes in the ER of living cells. We pair a tetrazine-quenched RhoVR for voltage sensing with a transcyclooctene (TCO)-conjugated ceramide (Cer-TCO) for targeting to the ER. Bright fluorescence is observed only at the coincidence of the LUnAR RhoVR and TCO in the ER, minimizing non-specific, off-target fluorescence. We show that the product of the LUnAR RhoVR and Cer-TCO is voltage-sensitive and that the LUnAR RhoVR can be targeted to an intact ER in living cells. Using the LUnAR RhoVR, we use two-color, ER-localized, fast voltage imaging coupled with cytosolic Ca2+ imaging to validate the electroneutrality of Ca2+ release from internal stores. Finally, we use the LUnAR RhoVR to directly visualize functional coupling between the plasma-ER membranes in patch clamped cell lines, providing the first direct evidence of the sign of the ER potential response to plasma membrane potential changes. We envision that the LUnAR RhoVR, along with other existing organelle-targeting TCO probes, could be applied widely for exploring organelle physiology.
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Affiliation(s)
- Pavel E Z Klier
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Anneliese M M Gest
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Julia G Martin
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ryan Roo
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Marisol X Navarro
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Lauren Lesiak
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Parker E Deal
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Neville Dadina
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Jonathan Tyson
- Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Alanna Schepartz
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Department of Molecular & Cell Biology, University of California, Berkeley, California 94720, United States
| | - Evan W Miller
- Department of Chemistry, University of California, Berkeley, California 94720, United States.,Department of Molecular & Cell Biology, University of California, Berkeley, California 94720, United States.,Helen Wills Neuroscience Institute, University of California, Berkeley, California 94720, United States
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35
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Bachman JL, Wight CD, Bardo AM, Johnson AM, Pavlich CI, Boley AJ, Wagner HR, Swaminathan J, Iverson BL, Marcotte EM, Anslyn EV. Evaluating the Effect of Dye-Dye Interactions of Xanthene-Based Fluorophores in the Fluorosequencing of Peptides. Bioconjug Chem 2022; 33:1156-1165. [PMID: 35622964 DOI: 10.1021/acs.bioconjchem.2c00103] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A peptide sequencing scheme utilizing fluorescence microscopy and Edman degradation to determine the amino acid position in fluorophore-labeled peptides was recently reported, referred to as fluorosequencing. It was observed that multiple fluorophores covalently linked to a peptide scaffold resulted in a decrease in the anticipated fluorescence output and worsened the single-molecule fluorescence analysis. In this study, we report an improvement in the photophysical properties of fluorophore-labeled peptides by incorporating long and flexible (PEG)10 linkers at the peptide attachment points. Long linkers to the fluorophores were installed using copper-catalyzed azide-alkyne cycloaddition conditions. The photophysical properties of these peptides were analyzed in solution and immobilized on a microscope slide at the single-molecule level under peptide fluorosequencing conditions. Solution-phase fluorescence analysis showed improvements in both quantum yield and fluorescence lifetime with the long linkers. While on the solid support, photometry measurements showed significant increases in fluorescence brightness and 20 to 60% improvements in the ability to determine the amino acid position with fluorosequencing. This spatial distancing strategy demonstrates improvements in the peptide sequencing platform and provides a general approach for improving the photophysical properties in fluorophore-labeled macromolecules.
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Affiliation(s)
- James L Bachman
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Christopher D Wight
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Angela M Bardo
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Amber M Johnson
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Cyprian I Pavlich
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Alexander J Boley
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Holden R Wagner
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Jagannath Swaminathan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Brent L Iverson
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Edward M Marcotte
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Eric V Anslyn
- Department of Chemistry, The University of Texas at Austin, Austin, Texas 78712, United States
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36
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Liu F, Chen HM, Armstrong Z, Withers SG. Azido Groups Hamper Glycan Acceptance by Carbohydrate Processing Enzymes. ACS CENTRAL SCIENCE 2022; 8:656-662. [PMID: 35647280 PMCID: PMC9136970 DOI: 10.1021/acscentsci.1c01172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Indexed: 06/15/2023]
Abstract
Azido sugars have found frequent use as probes of biological systems in approaches ranging from cell surface metabolic labeling to activity-based proteomic profiling of glycosidases. However, little attention is typically paid to how well azide-substituted sugars represent the parent molecule, despite the substantial difference in size and structure of an azide compared to a hydroxyl. To quantitatively assess how well azides are accommodated, we have used glycosidases as tractable model enzyme systems reflecting what would also be expected for glycosyltransferases and other sugar binding/modifying proteins. In this vein, specificity constants have been measured for the hydrolysis of a series of azidodeoxy glucosides and N-acetylhexosaminides by a large number of glycosidases produced from expressed synthetic gene and metagenomic libraries. Azides at secondary carbons are not significantly accommodated, and thus, associated substrates are not processed, while those at primary carbons are productively recognized by only a small subset of the enzymes and often then only very poorly. Accordingly, in the absence of careful controls, results obtained with azide-modified sugars may not be representative of the situation with the natural sugar and should be interpreted with considerable caution. Azide incorporation can indeed provide a useful tool to monitor and detect glycosylation, but careful consideration should go into the selection of sites of azide substitution; such studies should not be used to quantitate glycosylation or to infer the absence of glycosylation activity.
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37
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Loehr MO, Luedtke NW. A Kinetic and Fluorogenic Enhancement Strategy for Labeling of Nucleic Acids. Angew Chem Int Ed Engl 2022; 61:e202112931. [PMID: 35139255 DOI: 10.1002/anie.202112931] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 12/21/2022]
Abstract
Chemical modification of nucleic acids in living cells can be sterically hindered by tight packing of bioorthogonal functional groups in chromatin. To address this limitation, we report here a dual enhancement strategy for nucleic acid-templated reactions utilizing a fluorogenic intercalating agent capable of undergoing inverse electron-demand Diels-Alder (IEDDA) reactions with DNA containing 5-vinyl-2'-deoxyuridine (VdU) or RNA containing 5-vinyl-uridine (VU). Reversible high-affinity intercalation of a novel acridine-tetrazine conjugate "PINK" (KD =5±1 μM) increases the reaction rate of tetrazine-alkene IEDDA on duplex DNA by 60 000-fold (590 M-1 s-1 ) as compared to the non-templated reaction. At the same time, loss of tetrazine-acridine fluorescence quenching renders the reaction highly fluorogenic and detectable under no-wash conditions. This strategy enables live-cell dynamic imaging of acridine-modified nucleic acids in dividing cells.
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Affiliation(s)
- Morten O Loehr
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montréal, Québec, H3A 0B8, Canada
| | - Nathan W Luedtke
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montréal, Québec, H3A 0B8, Canada.,Department of Pharmacology and Therapeutics, McGill University, 3655 Prom. Sir William Osler, Montréal, Québec H3G 1Y6, Canada
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38
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Bijani S, Shaikh F, Mirza S, Weng In Siu S, Jain N, Rawal R, Richards NGJ, Shah A, Radadiya A. Novel Dihydropyrimidinone Derivatives as Potential P-Glycoprotein Modulators. ACS OMEGA 2022; 7:16278-16287. [PMID: 35601326 PMCID: PMC9118204 DOI: 10.1021/acsomega.1c05839] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Accepted: 04/15/2022] [Indexed: 05/22/2023]
Abstract
P-glycoprotein (Pgp), an ATP binding cassette (ABC) transporter, is an ATP-dependent efflux pump responsible for cancer multidrug resistance. As part of efforts to identify human Pgp (hPgp) inhibitors, we prepared a series of novel triazole-conjugated dihydropyrimidinones using a synthetic approach that is well suited for obtaining compound libraries. Several of these dihydropyrimidinone derivatives modulate human P-glycoprotein (hPgp) activity with low micromolar EC50 values. Molecular docking studies suggest that these compounds bind to the M-site of the transporter.
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Affiliation(s)
- Sabera Bijani
- Center
of Excellence, National Facility for Drug Discovery Complex, Department
of Chemistry, Saurashtra University, Rajkot 360005, India
- Department
of Chemistry, Marwadi University, Rajkot 360003, India
| | - Faraz Shaikh
- Center
of Excellence, National Facility for Drug Discovery Complex, Department
of Chemistry, Saurashtra University, Rajkot 360005, India
- Department
of Computer and Information Science, University
of Macau, Macau 999078, China
| | - Sheefa Mirza
- The
Gujarat Cancer & Research Institute, Ahmedabad 380009, India
- Department
of Internal Medicine, Faculty of Health Sciences, University of the Witwatersrand, Johannesburg 2193, South Africa
| | - Shirley Weng In Siu
- Department
of Computer and Information Science, University
of Macau, Macau 999078, China
| | - Nayan Jain
- Department
of Life Sciences, School of Sciences, Gujarat
University, Ahmedabad 380009, India
| | - Rakesh Rawal
- The
Gujarat Cancer & Research Institute, Ahmedabad 380009, India
- Department
of Life Sciences, School of Sciences, Gujarat
University, Ahmedabad 380009, India
| | | | - Anamik Shah
- Center
of Excellence, National Facility for Drug Discovery Complex, Department
of Chemistry, Saurashtra University, Rajkot 360005, India
- Astha, Saurashtra
University Karmachari Cooperative Society,
B/H Forensic Lab., Street
No. 2, University Road, Rajkot 360005, India
| | - Ashish Radadiya
- Center
of Excellence, National Facility for Drug Discovery Complex, Department
of Chemistry, Saurashtra University, Rajkot 360005, India
- School
of Chemistry, Cardiff University, Cardiff CF10 3AT, UK
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39
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In situ identification of cellular drug targets in mammalian tissue. Cell 2022; 185:1793-1805.e17. [PMID: 35483372 PMCID: PMC9106931 DOI: 10.1016/j.cell.2022.03.040] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 02/01/2022] [Accepted: 03/28/2022] [Indexed: 12/24/2022]
Abstract
The lack of tools to observe drug-target interactions at cellular resolution in intact tissue has been a major barrier to understanding in vivo drug actions. Here, we develop clearing-assisted tissue click chemistry (CATCH) to optically image covalent drug targets in intact mammalian tissues. CATCH permits specific and robust in situ fluorescence imaging of target-bound drug molecules at subcellular resolution and enables the identification of target cell types. Using well-established inhibitors of endocannabinoid hydrolases and monoamine oxidases, direct or competitive CATCH not only reveals distinct anatomical distributions and predominant cell targets of different drug compounds in the mouse brain but also uncovers unexpected differences in drug engagement across and within brain regions, reflecting rare cell types, as well as dose-dependent target shifts across tissue, cellular, and subcellular compartments that are not accessible by conventional methods. CATCH represents a valuable platform for visualizing in vivo interactions of small molecules in tissue.
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40
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Polák P, Cossy J. Ni-Catalyzed Cross-Coupling of 2-Iodoglycals and 2-Iodoribals with Grignard Reagents: A Route to 2-C-Glycosides and 2'-C-Nucleosides. Chemistry 2022; 28:e202104311. [PMID: 35238093 DOI: 10.1002/chem.202104311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Indexed: 12/17/2022]
Abstract
The synthesis of 2-C-glycals and 2-C-ribals was achieved in good yields using a nickel-catalyzed cross-coupling between 2-iodoglycals and 2-iodoribal respectively and Grignard reagents. The prepared 2-C-glycals and ribals were then transformed into 2-C-2-deoxyglycosides, 2-C-diglycosides and 2'-C-2'-deoxynucleosides. The developed method was applied to the synthesis of a 2-chloroadenine 2'-deoxyribonucleoside - a structural analogue of cladribine (Mavenclad®, Leustatin®) and clofarabine (Clolar®, Evoltra®), two compounds used in the treatment of relapsing-remitting multiple sclerosis and hairy cell leukemia.
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Affiliation(s)
- Peter Polák
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris, PSL University, CNRS, 10 rue Vauquelin, 75005, Paris, France
| | - Janine Cossy
- Molecular, Macromolecular Chemistry, and Materials, ESPCI Paris, PSL University, CNRS, 10 rue Vauquelin, 75005, Paris, France
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41
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Zhang Y, Lu Y, El Sayyed H, Bian J, Lin J, Li X. Transcription factor dynamics in plants: Insights and technologies for in vivo imaging. PLANT PHYSIOLOGY 2022; 189:23-36. [PMID: 35134239 PMCID: PMC9070795 DOI: 10.1093/plphys/kiac042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Accepted: 01/08/2022] [Indexed: 06/14/2023]
Abstract
Biochemical and genetic approaches have been extensively used to study transcription factor (TF) functions, but their dynamic behaviors and the complex ways in which they regulate transcription in plant cells remain unexplored, particularly behaviors such as translocation and binding to DNA. Recent developments in labeling and imaging techniques provide the necessary sensitivity and resolution to study these behaviors in living cells. In this review, we present an up-to-date portrait of the dynamics and regulation of TFs under physiologically relevant conditions and then summarize recent advances in fluorescent labeling strategies and imaging techniques. We then discuss future prospects and challenges associated with the application of these techniques to examine TFs' intricate dance in living plants.
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Affiliation(s)
- Yuan Zhang
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
| | - Yuqing Lu
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
| | - Hafez El Sayyed
- Department of Physics, University of Oxford, Oxford OX1 3PU, UK
| | - Jiahui Bian
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
| | - Jinxing Lin
- Key Laboratory of Genetics and Breeding in Forest Trees and Ornamental Plants Ministry of Education, College of Biological Sciences and Biotechnology, Beijing Forestry University, Beijing 100083, China
- Beijing Advanced Innovation Center for Tree Breeding by Molecular Design, Beijing Forestry University, Beijing 100083, China
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42
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Bissessar D, Egly J, Achard T, Steffanut P, Mauro M, Bellemin-Laponnaz S. A stable and photoreactive copper iodide cubane suitable for direct post‐functionalization. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202200101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Damien Bissessar
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Julien Egly
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | - Thierry Achard
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
| | | | - Matteo Mauro
- IPCMS: Institut de physique et chimie des materiaux de Strasbourg DMO FRANCE
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43
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Loehr MO, Luedtke NW. A Kinetic and Fluorogenic Enhancement Strategy for Labeling of Nucleic Acids. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202112931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Morten O. Loehr
- Department of Chemistry McGill University 801 Sherbrooke St. West Montréal Québec, H3A 0B8 Canada
| | - Nathan W. Luedtke
- Department of Chemistry McGill University 801 Sherbrooke St. West Montréal Québec, H3A 0B8 Canada
- Department of Pharmacology and Therapeutics McGill University 3655 Prom. Sir William Osler Montréal Québec H3G 1Y6 Canada
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44
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Garciaz S, Guirguis AA, Müller S, Brown FC, Chan YC, Motazedian A, Rowe CL, Kuzich JA, Chan KL, Tran K, Smith L, MacPherson L, Liddicoat B, Lam EY, Cañeque T, Burr ML, Litalien V, Pomilio G, Poplineau M, Duprez E, Dawson SJ, Ramm G, Cox AG, Brown KK, Huang DC, Wei AH, McArthur K, Rodriguez R, Dawson MA. Pharmacologic Reduction of Mitochondrial Iron Triggers a Noncanonical BAX/BAK-Dependent Cell Death. Cancer Discov 2022; 12:774-791. [PMID: 34862195 PMCID: PMC9390741 DOI: 10.1158/2159-8290.cd-21-0522] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 10/18/2021] [Accepted: 11/29/2021] [Indexed: 01/07/2023]
Abstract
Cancer cell metabolism is increasingly recognized as providing an exciting therapeutic opportunity. However, a drug that directly couples targeting of a metabolic dependency with the induction of cell death in cancer cells has largely remained elusive. Here we report that the drug-like small-molecule ironomycin reduces the mitochondrial iron load, resulting in the potent disruption of mitochondrial metabolism. Ironomycin promotes the recruitment and activation of BAX/BAK, but the resulting mitochondrial outer membrane permeabilization (MOMP) does not lead to potent activation of the apoptotic caspases, nor is the ensuing cell death prevented by inhibiting the previously established pathways of programmed cell death. Consistent with the fact that ironomycin and BH3 mimetics induce MOMP through independent nonredundant pathways, we find that ironomycin exhibits marked in vitro and in vivo synergy with venetoclax and overcomes venetoclax resistance in primary patient samples. SIGNIFICANCE Ironomycin couples targeting of cellular metabolism with cell death by reducing mitochondrial iron, resulting in the alteration of mitochondrial metabolism and the activation of BAX/BAK. Ironomycin induces MOMP through a different mechanism to BH3 mimetics, and consequently combination therapy has marked synergy in cancers such as acute myeloid leukemia. This article is highlighted in the In This Issue feature, p. 587.
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Affiliation(s)
- Sylvain Garciaz
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Andrew A. Guirguis
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Sebastian Müller
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Fiona C. Brown
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Yih-Chih Chan
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Ali Motazedian
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Caitlin L. Rowe
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - James A. Kuzich
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Kah Lok Chan
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Kevin Tran
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Lorey Smith
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Laura MacPherson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Brian Liddicoat
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Enid Y.N. Lam
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Tatiana Cañeque
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Marian L. Burr
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
| | - Véronique Litalien
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Giovanna Pomilio
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Mathilde Poplineau
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Estelle Duprez
- Aix-Marseille University, INSERM U1068, CNRS, Institut Paoli-Calmettes, Marseille, France
| | - Sarah-Jane Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
| | - Georg Ramm
- Monash Ramaciotti Centre for Cryo Electron Microscopy, Monash University, Melbourne, Victoria, Australia
| | - Andrew G. Cox
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, Victoria, Australia
| | - Kristin K. Brown
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Department of Biochemistry and Pharmacology, University of Melbourne, Melbourne, Victoria, Australia
| | - David C.S. Huang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Victoria, Australia
| | - Andrew H. Wei
- Australian Centre for Blood Diseases, Monash University, Melbourne, Victoria, Australia
| | - Kate McArthur
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Victoria, Australia
| | - Raphaël Rodriguez
- Institut Curie, PSL Research University, CNRS UMR3666, INSERM U1143, Chemical Biology of Cancer, Paris, France
| | - Mark A. Dawson
- Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, Australia
- Centre for Cancer Research, University of Melbourne, Melbourne, Victoria, Australia
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45
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Vilé G, Di Liberto G, Tosoni S, Sivo A, Ruta V, Nachtegaal M, Clark AH, Agnoli S, Zou Y, Savateev A, Antonietti M, Pacchioni G. Azide-Alkyne Click Chemistry over a Heterogeneous Copper-Based Single-Atom Catalyst. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05610] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Gianvito Vilé
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Giovanni Di Liberto
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Sergio Tosoni
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
| | - Alessandra Sivo
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Vincenzo Ruta
- Department of Chemistry, Materials, and Chemical Engineering “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
| | - Maarten Nachtegaal
- Paul Scherrer Institute, Forschingsstrasse 111, 5232 Villigen, Switzerland
| | - Adam H. Clark
- Paul Scherrer Institute, Forschingsstrasse 111, 5232 Villigen, Switzerland
| | - Stefano Agnoli
- Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy
| | - Yajun Zou
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam-Golm Science Park, Am Muehlenberg 1 OT, Golm, Potsdam 14476, Germany
| | - Aleksandr Savateev
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam-Golm Science Park, Am Muehlenberg 1 OT, Golm, Potsdam 14476, Germany
| | - Markus Antonietti
- Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam-Golm Science Park, Am Muehlenberg 1 OT, Golm, Potsdam 14476, Germany
| | - Gianfranco Pacchioni
- Department of Materials Science, University of Milano-Bicocca, Via Roberto Cozzi 55, 20125 Milano, Italy
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46
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Jemas A, Xie Y, Pigga JE, Caplan JL, am Ende CW, Fox JM. Catalytic Activation of Bioorthogonal Chemistry with Light (CABL) Enables Rapid, Spatiotemporally Controlled Labeling and No-Wash, Subcellular 3D-Patterning in Live Cells Using Long Wavelength Light. J Am Chem Soc 2022; 144:1647-1662. [PMID: 35072462 PMCID: PMC9364228 DOI: 10.1021/jacs.1c10390] [Citation(s) in RCA: 33] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Described is the spatiotemporally controlled labeling and patterning of biomolecules in live cells through the catalytic activation of bioorthogonal chemistry with light, referred to as "CABL". Here, an unreactive dihydrotetrazine (DHTz) is photocatalytically oxidized in the intracellular environment by ambient O2 to produce a tetrazine that immediately reacts with a trans-cyclooctene (TCO) dienophile. 6-(2-Pyridyl)dihydrotetrazine-3-carboxamides were developed as stable, cell permeable DHTz reagents that upon oxidation produce the most reactive tetrazines ever used in live cells with Diels-Alder kinetics exceeding k2 of 106 M-1 s-1. CABL photocatalysts are based on fluorescein or silarhodamine dyes with activation at 470 or 660 nm. Strategies for limiting extracellular production of singlet oxygen are described that increase the cytocompatibility of photocatalysis. The HaloTag self-labeling platform was used to introduce DHTz tags to proteins localized in the nucleus, mitochondria, actin, or cytoplasm, and high-yielding subcellular activation and labeling with a TCO-fluorophore were demonstrated. CABL is light-dose dependent, and two-photon excitation promotes CABL at the suborganelle level to selectively pattern live cells under no-wash conditions. CABL was also applied to spatially resolved live-cell labeling of an endogenous protein target by using TIRF microscopy to selectively activate intracellular monoacylglycerol lipase tagged with DHTz-labeled small molecule covalent inhibitor. Beyond spatiotemporally controlled labeling, CABL also improves the efficiency of "ordinary" tetrazine ligations by rescuing the reactivity of commonly used 3-aryl-6-methyltetrazine reporters that become partially reduced to DHTzs inside cells. The spatiotemporal control and fast rates of photoactivation and labeling of CABL should enable a range of biomolecular labeling applications in living systems.
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Affiliation(s)
- Andrew Jemas
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Yixin Xie
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jessica E. Pigga
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
| | - Jeffrey L. Caplan
- Department of Plant and Soil Sciences and Delaware Biotechnology Institute, University of Delaware, Newark, DE 19716, USA
| | - Christopher W. am Ende
- Pfizer Worldwide Research and Development, Eastern Point Road, Groton, Connecticut 06340, United States
| | - Joseph M. Fox
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, USA
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Tang T, Liu X, Yuan Y, Kiya R, Shen Y, Zhang T, Suzuki K, Tanaka Y, Li M, Hosokawa Y, Yalikun Y. Dual-frequency impedance assays for intracellular components in microalgal cells. LAB ON A CHIP 2022; 22:550-559. [PMID: 35072196 DOI: 10.1039/d1lc00721a] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Intracellular components (including organelles and biomolecules) at the submicron level are typically analyzed in situ by special preparation or expensive setups. Here, a label-free and cost-effective approach of screening microalgal single-cells at a subcellular resolution is available based on impedance cytometry. To the best of our knowledge, it is the first time that the relationships between impedance signals and submicron intracellular organelles and biomolecules are shown. Experiments were performed on Euglena gracilis (E. gracilis) cells incubated under different incubation conditions (i.e., aerobic and anaerobic) and 15 μm polystyrene beads (reference) at two distinct stimulation frequencies (i.e., 500 kHz and 6 MHz). Based on the impedance detection of tens of thousands of samples at a throughput of about 900 cells per second, three metrics were used to track the changes in biophysical properties of samples. As a result, the electrical diameters of cells showed a clear shrinkage in cell volume and intracellular components, as observed under a microscope. The morphology metric of impedance pulses (i.e., tilt index) successfully characterized the changes in cell shape and intracellular composition distribution. Besides, the electrical opacity showed a stable ratio of the intracellular components to cell volume under the cellular self-regulation. Additionally, simulations were used to support these findings and to elucidate how submicron intracellular components and cell morphology affect impedance signals, providing a basis for future improvements. This work opens up a label-free and high-throughput way to analyze single-cell intracellular components by impedance cytometry.
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Affiliation(s)
- Tao Tang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Xun Liu
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yapeng Yuan
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ryota Kiya
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yigang Shen
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Tianlong Zhang
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
- School of Engineering, Macquarie University, Sydney, 2109, Australia
| | | | - Yo Tanaka
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
| | - Ming Li
- School of Engineering, Macquarie University, Sydney, 2109, Australia
| | - Yoichiroh Hosokawa
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
| | - Yaxiaer Yalikun
- Division of Materials Science, Nara Institute of Science and Technology, 8916-5 Takayama-cho, Ikoma, Nara 630-0192, Japan.
- Center for Biosystems Dynamics Research (BDR), RIKEN, 1-3 Yamadaoka, Suita, Osaka, 565-0871, Japan
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48
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Jiménez-Jiménez C, Moreno VM, Vallet-Regí M. Bacteria-Assisted Transport of Nanomaterials to Improve Drug Delivery in Cancer Therapy. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:288. [PMID: 35055305 PMCID: PMC8781131 DOI: 10.3390/nano12020288] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 01/08/2022] [Accepted: 01/11/2022] [Indexed: 12/12/2022]
Abstract
Currently, the design of nanomaterials for the treatment of different pathologies is presenting a major impact on biomedical research. Thanks to this, nanoparticles represent a successful strategy for the delivery of high amounts of drugs for the treatment of cancer. Different nanosystems have been designed to combat this pathology. However, the poor penetration of these nanomaterials into the tumor tissue prevents the drug from entering the inner regions of the tumor. Some bacterial strains have self-propulsion and guiding capacity thanks to their flagella. They also have a preference to accumulate in certain tumor regions due to the presence of different chemo-attractants factors. Bioconjugation reactions allow the binding of nanoparticles in living systems, such as cells or bacteria, in a simple way. Therefore, bacteria are being used as a transport vehicle for nanoparticles, facilitating their penetration and the subsequent release of the drug inside the tumor. This review would summarize the literature on the anchoring methods of diverse nanosystems in bacteria and, interestingly, their advantages and possible applications in cancer therapy.
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Affiliation(s)
- Carla Jiménez-Jiménez
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28040 Madrid, Spain;
| | - Víctor M. Moreno
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria, Hospital 12 de Octubre i+12, 28040 Madrid, Spain;
| | - María Vallet-Regí
- CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, 28040 Madrid, Spain;
- Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria, Hospital 12 de Octubre i+12, 28040 Madrid, Spain;
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49
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Sun H, Xue Q, Zhang C, Wu H, Feng P. Derivatization based on tetrazine scaffolds: synthesis of tetrazine derivatives and their biomedical applications. Org Chem Front 2022. [DOI: 10.1039/d1qo01324f] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
The recent advances in tetrazine scaffold-based derivatizations have been summarized. The advantages and limitations of derivatization methods and applications of the developed tetrazine derivatives in bioorthogonal chemistry have been highlighted.
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Affiliation(s)
- Hongbao Sun
- Huaxi MR Research Center (HMRRC), Department of Radiology, Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qinghe Xue
- Huaxi MR Research Center (HMRRC), Department of Radiology, Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chang Zhang
- Huaxi MR Research Center (HMRRC), Department of Radiology, Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Haoxing Wu
- Huaxi MR Research Center (HMRRC), Department of Radiology, Frontiers Science Center for Disease-related Molecular Network, National Clinical Research Center for Geriatrics, Functional and Molecular Imaging Key Laboratory of Sichuan Province, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Ping Feng
- Clinical Trial Center, West China Hospital of Sichuan University, Chengdu 610041, China
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50
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Jian Y, Jin Z, Qi S, Da X, Wang Z, Wang X, Zhou Q. An Alkynyl-Dangling Ru(II) Polypyridine Complex for Targeted Antimicrobial Photodynamic Therapy. Chemistry 2021; 28:e202103359. [PMID: 34890065 DOI: 10.1002/chem.202103359] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Indexed: 11/11/2022]
Abstract
To realize clinical application of antibacterial photodynamic therapy (aPDT), one of the most arduous challenges is how to render aPDT agents high selectivity against bacterial pathogens. In light of the fact that amino group-containing lipids are rich on the outer surfaces of Gram-positive bacteria, we herein constructed an alkynyl-dangling ruthenium(II) polypyridine complex (Ru2) to preferentially label Staphylococcus aureus (S. aureus) and methicillin-resistant Staphylococcus aureus (MRSA) over mammalian cells via the amino-yne bio-orthogonal click reaction. Thanks to the strong singlet oxygen generation ability, Ru2 could photo-inactivate S. aureus and MRSA effectively and specifically. Phosphatidylethanolamine (PE) molecules also exist in mammalian cells but are not accessible for Ru2, leading to its poor binding/uptake and negligible cytotoxicity in the dark and upon irradiation towards mammalian cells as well as low hemolysis, all favorable for aPDT application.
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Affiliation(s)
- Yao Jian
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhihui Jin
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shuang Qi
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuwen Da
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhanhua Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xuesong Wang
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China.,University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Qianxiong Zhou
- Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, P. R. China
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