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van Wilderen LJGW, Kern-Michler D, Neumann C, Reinfelds M, von Cosel J, Horz M, Burghardt I, Heckel A, Bredenbeck J. Choose your leaving group: selective photodeprotection in a mixture of pHP-caged compounds by VIPER excitation. Chem Sci 2023; 14:2624-2630. [PMID: 36908963 PMCID: PMC9993852 DOI: 10.1039/d2sc06259c] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Accepted: 02/07/2023] [Indexed: 02/11/2023] Open
Abstract
Photocages are light-triggerable molecular moieties that can locally release a pre-determined leaving group (LG). Finding a suitable photocage for a particular application may be challenging, as the choice may be limited by for instance the optical or physicochemical properties of the system. Using more than one photocage to release different LGs in a reaction mixture may even be more difficult. In this work an experimental strategy is presented that allows us to hand-pick the release of different LGs, and to do so in any order. This is achieved by using isotopologue photocage-LG mixtures in combination with ultrafast VIbrationally Promoted Electronic Resonance (VIPER) excitation. The latter provides the required molecular selectivity simply by tuning the wavenumber of the used IR pulses to the resonance of a specific photocage isotopologue, as is demonstrated here for the para-hydroxyphenacyl (pHP) photocage. For spectroscopic convenience, we use isotopologues of the infrared (IR) spectroscopic marker -SCN as different LGs. Especially for applications where fast LG release is required, pHP is found to be an excellent candidate, as free LG formation is observed to occur with a 10 ps lifetime. The devised strategy may open up new complex uncaging applications, where multiple LGs can be formed locally on a short time scale and in any sequence.
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Affiliation(s)
- Luuk J G W van Wilderen
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Daniela Kern-Michler
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Carsten Neumann
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
| | - Matiss Reinfelds
- Johann Wolfgang Goethe-University, Institute of Organic Chemistry and Chemical Biology Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Jan von Cosel
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Maximiliane Horz
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Irene Burghardt
- Johann Wolfgang Goethe-University, Institute of Physical and Theoretical Chemistry Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Alexander Heckel
- Johann Wolfgang Goethe-University, Institute of Organic Chemistry and Chemical Biology Max-von-Laue-Str. 7 60438 Frankfurt am Main Germany
| | - Jens Bredenbeck
- Johann Wolfgang Goethe-University, Institute of Biophysics Max-von-Laue-Str. 1 60438 Frankfurt am Main Germany
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2
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Aggarwal SC, Khodade VS, Porche S, Pharoah BM, Toscano JP. Photochemical Release of Hydropersulfides. J Org Chem 2022; 87:12644-12652. [PMID: 36084133 DOI: 10.1021/acs.joc.2c01049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydropersulfides (RSSH) have received significant interest in the field of redox biology because of their intriguing biochemical properties. However, because RSSH are inherently unstable, their study is challenging, and as a result, the details of their physiological roles remain ill-defined. Herein, we report strategies to release RSSH utilizing photoremovable protecting groups. RSSH protection with the well-established p-hydroxyphenacyl (pHP) photoprotecting group resulted in inefficient RSSH photorelease along with complex chemistry. Therefore, an alternative precursor was examined in which a self-immolative linker was inserted between the pHP group and RSSH, providing nearly quantitative RSSH release following photolysis at 365 nm. Inspired by these results, we also synthesized an analogous precursor derivatized with 7-diethylaminocoumarin (DEACM), a visible light-cleavable photoprotecting group. Photolysis of this precursor at 420 nm led to efficient RSSH release, and in vitro experiments demonstrated intracellular RSSH delivery in breast cancer MCF-7 cells.
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Affiliation(s)
- Sahil C Aggarwal
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Vinayak S Khodade
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Sarah Porche
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Blaze M Pharoah
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - John P Toscano
- Department of Chemistry, Johns Hopkins University, Baltimore, Maryland 21218, United States
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3
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Somalo-Barranco G, Serra C, Lyons D, Piggins HD, Jockers R, Llebaria A. Design and Validation of the First Family of Photo-Activatable Ligands for Melatonin Receptors. J Med Chem 2022; 65:11229-11240. [PMID: 35930058 PMCID: PMC9421648 DOI: 10.1021/acs.jmedchem.2c00717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
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Melatonin is a neurohormone released in a circadian manner
with
peak levels at night. Melatonin mediates its effects mainly through
G protein-coupled MT1 and MT2 receptors. Drugs
acting on melatonin receptors are indicated for circadian rhythm-
and sleep-related disorders. Tools to study the activation of these
receptors with high temporal resolution are lacking. Here, we synthesized
a family of light-activatable caged compounds by attaching o-nitrobenzyl (o-NB) or coumarin photocleavable
groups to melatonin indolic nitrogen. All caged compounds showed the
expected decrease in binding affinity for MT1 and MT2. The o-NB derivative MCS-0382 showed the
best uncaging and biological properties, with 250-fold increase in
affinity and potency upon illumination. Generation of melatonin from
MCS-0382 was further demonstrated by its ability to modulate the excitation
of SCN neurons in rat brain slices. MCS-0382 is available to study
melatonin effects in a temporally controlled manner in cellular and
physiological settings.
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Affiliation(s)
- Gloria Somalo-Barranco
- Université de Paris, Institut Cochin, INSERM, CNRS, F-75014 Paris, France.,MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
| | - Carme Serra
- MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain.,SIMChem, Synthesis of High Added Value Molecules, Institute of Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
| | - David Lyons
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BS8 1TD Bristol, U.K
| | - Hugh D Piggins
- School of Physiology, Pharmacology and Neuroscience, Faculty of Life Sciences, University of Bristol, BS8 1TD Bristol, U.K
| | - Ralf Jockers
- Université de Paris, Institut Cochin, INSERM, CNRS, F-75014 Paris, France
| | - Amadeu Llebaria
- MCS, Laboratory of Medicinal Chemistry & Synthesis, Department of Biological Chemistry, Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), 08034 Barcelona, Spain
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4
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Field T, Peterson J, Ma C, Jagadesan P, Da Silva JP, Rubina M, Ramamurthy V, Givens RS. Competing pathways for photoremovable protecting groups: the effects of solvent, oxygen and encapsulation. Photochem Photobiol Sci 2020; 19:1364-1372. [DOI: 10.1039/d0pp00067a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photolysis of p-hydroxyphenacyloxy arenes releases free phenols in good yields governed by their pKa. At high pKa, new byproducts (Bvs. A) reveal a change in reaction mechanism.
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Affiliation(s)
- Thomas Field
- Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | | | - Chicheng Ma
- Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | | | - José P. Da Silva
- CCMAR - Centre of Marine Sciences
- University of Algarve
- Campus de Gambelas
- Portugal
| | - Marina Rubina
- Department of Chemistry
- University of Kansas
- Lawrence
- USA
| | - V. Ramamurthy
- Department of Chemistry
- University of Miami
- Coral Gables
- USA
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5
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Singh AK, Kundu M, Roy S, Roy B, Shah SS, Nair AV, Pal B, Mondal M, Singh NDP. A two-photon responsive naphthyl tagged p-hydroxyphenacyl based drug delivery system: uncaging of anti-cancer drug in the phototherapeutic window with real-time monitoring. Chem Commun (Camb) 2020; 56:9986-9989. [DOI: 10.1039/d0cc01903h] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A two-photon responsive drug delivery system having two-photon absorption (TPA) in the phototherapeutic window with a two-photon uncaging cross-section ≥10 GM and exhibiting real-time monitoring of anti-cancer drug release.
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Affiliation(s)
- Amit Kumar Singh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Moumita Kundu
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - Samrat Roy
- Department of Physical Sciences
- Indian Institute of Science Education and Research
- Kolkata, Mohanpur, Nadia 741246
- India
| | - Biswajit Roy
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Sk. Sheriff Shah
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Asha V Nair
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
| | - Bipul Pal
- Department of Physical Sciences
- Indian Institute of Science Education and Research
- Kolkata, Mohanpur, Nadia 741246
- India
| | - Mahitosh Mondal
- School of Medical Science and Technology
- Indian Institute of Technology Kharagpur
- Kharagpur
- India
| | - N. D. Pradeep Singh
- Department of Chemistry
- Indian Institute of Technology Kharagpur
- 721302 Kharagpur
- India
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6
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Light-triggered release of photocaged therapeutics - Where are we now? J Control Release 2019; 298:154-176. [PMID: 30742854 DOI: 10.1016/j.jconrel.2019.02.006] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 02/04/2019] [Accepted: 02/06/2019] [Indexed: 01/02/2023]
Abstract
The current available therapeutics face several challenges such as the development of ideal drug delivery systems towards the goal of personalized treatments for patients benefit. The application of light as an exogenous activation mechanism has shown promising outcomes, owning to the spatiotemporal confinement of the treatment in the vicinity of the diseased tissue, which offers many intriguing possibilities. Engineering therapeutics with light responsive moieties have been explored to enhance the bioavailability, and drug efficacy either in vitro or in vivo. The tailor-made character turns the so-called photocaged compounds highly desirable to reduce the side effects of drugs and, therefore, have received wide research attention. Herein, we seek to highlight the potential of photocaged compounds to obtain a clear understanding of the mechanisms behind its use in therapeutic delivery. A deep overview on the progress achieved in the design, fabrication as well as current and possible future applications in therapeutics of photocaged compounds is provided, so that novel formulations for biomedical field can be designed.
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