1
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Liang R, Li Y, Lo KC, Yan Z, Tang W, Du L, Phillips DL. Transient Absorption Spectroscopic Investigation of the Photocyclization-Deprotection Reaction of 3',5'-Dimethoxybenzoin Fluoride. Molecules 2024; 29:842. [PMID: 38398594 PMCID: PMC10892591 DOI: 10.3390/molecules29040842] [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: 01/08/2024] [Revised: 02/07/2024] [Accepted: 02/12/2024] [Indexed: 02/25/2024] Open
Abstract
The 3',5'-dimethoxybenzoin (DMB) system has been widely investigated as a photoremovable protecting group (PRPG) for the elimination of various functional groups and has been applied in many fields. The photolysis of DMB fluoride leads to a highly efficient photocyclization-deprotection reaction, resulting in a high yield of 3',5'-dimethoxybenzofuran (DMBF) in a MeCN solution, while there is a competitive reaction that produces DMB in an aqueous solution. The yield of DMB increased as the volume ratio of water increased. To understand the solvent effect of the photolysis of selected DMB-based compounds, a combination of femtosecond to nanosecond transient absorption spectroscopies (fs-TA and ns-TA), nanosecond time-resolved resonance Raman spectroscopy (ns-TR3) and quantum chemical calculation was employed to study the photophysical and photochemical reaction mechanisms of DMB fluoride in different solutions. Facilitated by the bichromophoric nature of DMB fluoride with electron-donating and -withdrawing chromophores, the cyclized intermediates could be found in a pure MeCN solution. The deprotection of a cyclic biradical intermediate results in the simultaneous formation of DMBF and a cyclic cation species. On the other hand, in aqueous solution, fs-TA experiments revealed that α-keto cations could be observed after excitation directly, which could easily produce the DMB through the addition of a hydroxyl within 8.7 ps. This work provides comprehensive photo-deactivation mechanisms of DMB fluoride in MeCN and aqueous conditions and provides critical insights regarding the biomedical application of DMB-based PRPG compounds.
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Affiliation(s)
- Runhui Liang
- Tech X Academy, Shenzhen Polytechnic University, Shenzhen 518055, China
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Yuanchun Li
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Kin Cheung Lo
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR 999077, China
| | - Zhiping Yan
- Institute of Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Wenjian Tang
- School of Pharmacy, Anhui Medical University, Hefei 230032, China
| | - Lili Du
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR 999077, China
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Hong Kong SAR 999077, China
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2
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Hamerla C, Mondal P, Hegger R, Burghardt I. Controlled destabilization of caged circularized DNA oligonucleotides predicted by replica exchange molecular dynamics simulations. Phys Chem Chem Phys 2023; 25:26132-26144. [PMID: 37740309 DOI: 10.1039/d3cp02961a] [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: 09/24/2023]
Abstract
Spatiotemporal control is a critical issue in the design of strategies for the photoregulation of oligonucleotide activity. Efficient uncaging, i.e., activation by removal of photolabile protecting groups (PPGs), often necessitates multiple PPGs. An alternative approach is based on circularization strategies, exemplified by intrasequential circularization, also denoted photo-tethering, as introduced in [Seyfried et al., Angew. Chem., Int. Ed., 2017, 56, 359]. Here, we develop a computational protocol, relying on replica exchange molecular dynamics (REMD), in order to characterize the destabilization of a series of circularized, caged DNA oligonucleotides addressed in the aforementioned study. For these medium-sized (32 nt) oligonucleotides, melting temperatures are computed, whose trend is in good agreement with experiment, exhibiting a large destabilization and, hence, reduction of the melting temperature of the order of ΔTm ∼ 30 K as compared with the native species. The analysis of free energy landscapes confirms the destabilization pattern experienced by the circularized oligonucleotides. The present study underscores that computational protocols that capture controlled destabilization and uncaging of oligonucleotides are promising as predictive tools in the tailored photocontrol of nucleic acids.
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Affiliation(s)
- Carsten Hamerla
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany.
| | - Padmabati Mondal
- Department of Chemistry and Center for Atomic, Molecular, and Optical Sciences and Technologies (CAMOST), Indian Institute of Science Education and Research (IISER) Tirupati, Panguru (G.P), Yerpedu Mandal, 517619 - Tirupati Dist., Andhra Pradesh, India
| | - Rainer Hegger
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany.
| | - Irene Burghardt
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue-Str. 7, 60438 Frankfurt am Main, Germany.
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3
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Tian H, You S, Xiong T, Ji M, Zhang K, Jiang L, Du T, Li Y, Liu W, Lin S, Chen X, Xu H. Discovery of a Novel Photocaged PI3K Inhibitor Capable of Real-Time Reporting of Drug Release. ACS Med Chem Lett 2023; 14:1100-1107. [PMID: 37583818 PMCID: PMC10424311 DOI: 10.1021/acsmedchemlett.3c00240] [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: 05/30/2023] [Accepted: 07/18/2023] [Indexed: 08/17/2023] Open
Abstract
A novel photocaged PI3K inhibitor 2 was designed and synthesized by introducing a cascade photocaging group to block its key interaction with the kinase. Upon UV light irradiation, the photocaged compound released a highly potent PI3K inhibitor to recover its anticancer properties and a fluorescent dye for real-time reporting of drug release, providing a new approach for studying the PI3K signaling transduction pathway as well as developing precisely controlled cancer therapeutics.
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Affiliation(s)
- Hua Tian
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Shen You
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Tianning Xiong
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Ming Ji
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Kehui Zhang
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Lin Jiang
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Tingting Du
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Ying Li
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Wenqian Liu
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Songwen Lin
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Xiaoguang Chen
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
| | - Heng Xu
- State
Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing
Key Laboratory of Active Substances Discovery and Drugability Evaluation, Institute of Materia Medica, Chinese Academy of Medical
Sciences and Peking Union Medical College, Beijing 100050, China
- Key
Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences and Peking Union
Medical College, Beijing 100050, China
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4
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Weber R, Chok K, Junek S, Glaubitz C, Heckel A. Rhodamine-Sensitized Two-Photon Activation of a Red Light-Absorbing BODIPY Photocage. Chemistry 2023; 29:e202300149. [PMID: 36785982 DOI: 10.1002/chem.202300149] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/08/2023] [Accepted: 02/13/2023] [Indexed: 02/15/2023]
Abstract
Two-photon (2P) activatable probes are of high value in biological and medical chemistry since near infrared (NIR) light can penetrate deeply even in blood-perfused tissue and due to the intrinsic three-dimensional activation properties. Designing two-photon chromophores is challenging. However, the two-photon absorption qualities of a photocage can be improved with an intramolecular sensitizer, which transfers the absorbed light onto the cage. We herein present the synthesis and photophysical characterization of a 2P-sensitive uncaging dyad based on rhodamine 101 as donor fluorophore and a redshifted BODIPY as acceptor photocage. Liberation of p-nitroaniline (PNA) upon one-photon photolysis was confirmed by HPLC analysis. The photoreaction was found to be accompanied by a considerable change of the fluorescence properties of the chromophores. The possibility of a fluorescent read-out enabled the detection of two-photon induced uncaging by confocal fluorescence microscopy.
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Affiliation(s)
- Rebekka Weber
- Goethe University Frankfurt, Institute for Organic Chemistry and Chemical Biology, Max-von-Laue-Str. 7, 60438, Frankfurt am Main, Germany
| | - Kerby Chok
- Goethe University Frankfurt, Institute for Biophysical Chemistry, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Stephan Junek
- Max Planck Institute for Brain Research, Max-von-Laue-Str. 4, 60438, Frankfurt am Main, Germany
| | - Clemens Glaubitz
- Goethe University Frankfurt, Institute for Biophysical Chemistry, Max-von-Laue-Str. 9, 60438, Frankfurt am Main, Germany
| | - Alexander Heckel
- Goethe University Frankfurt, Institute for Organic Chemistry and Chemical Biology, Max-von-Laue-Str. 7, 60438, Frankfurt am Main, Germany
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5
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Puppala M, Carrothers JE, Asad N, Bernard MA, Kim DS, Widegren MB, Dore TM. Sensitized 1-Acyl-7-nitroindolines with Enhanced Two-Photon Cross Sections for Release of Neurotransmitters. ACS Chem Neurosci 2022; 13:3578-3596. [PMID: 36484374 DOI: 10.1021/acschemneuro.2c00492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Precise photochemical control, using two-photon excitation (2PE), of the timing and location of activation of glutamate is useful for studying the molecular and cellular physiology of the brain. Antenna-based light harvesting strategies represent a general method to increase the sensitivity to 2PE of otherwise insensitive photoremovable protecting groups (PPGs). This was applied to the most commonly used form of "caged" glutamate, MNI-Glu. Computational investigation showed that a four- or six-carbon linker attached between the 4-position of thioxanthone (THX) and the 4-position of the 5-methyl derivative of MNI-Glu (MMNI-Glu) would position the antenna and PPG close to one another to enable Dexter energy transfer. Nine THX-MMNI-Glu conjugates were prepared and their photochemical properties determined. Installation of the THX antenna resulted in a red shift of the absorption (λmax = 385-405 nm) along with increased quantum yield compared to the parent compound MNI-Glu (λmax = 347 nm). The THX-MMNI-Glu conjugate with a four-carbon linker and attachment to the 4-position of THX underwent photolysis via 1PE at 405 and 430 nm and via 2PE at 770 and 860 nm, yielding glutamate. The two-photon uncaging action cross section (δu) was 0.11 and 0.29 GM at 770 and 860, respectively, which was greater than for MNI-Glu (0.06 and 0.072 GM at 720 and 770 nm, respectively). The THX sensitizer harvested the light via 2PE and transferred its resulting triplet energy to MMNI-Glu. Release of glutamate through 2PE at 860 nm from the compound (100 μM) activated iGluSnFR, a genetically encoded, fluorescent glutamate sensor, on the surface of cells in culture, portending its usefulness in studies of neurophysiology in acute brain slice.
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Affiliation(s)
- Manohar Puppala
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Jasmine E Carrothers
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Nadeem Asad
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Mark A Bernard
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Daniel S Kim
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Magnus B Widegren
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
| | - Timothy M Dore
- New York University Abu Dhabi, Saadiyat Island, P.O. Box 129188, Abu Dhabi, United Arab Emirates
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6
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Klimek R, Asido M, Hermanns V, Junek S, Wachtveitl J, Heckel A. Inactivation of Competitive Decay Channels Leads to Enhanced Coumarin Photochemistry. Chemistry 2022; 28:e202200647. [PMID: 35420716 PMCID: PMC9320935 DOI: 10.1002/chem.202200647] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Indexed: 11/30/2022]
Abstract
In the development of photolabile protecting groups, it is of high interest to selectively modify photochemical properties with structural changes as simple as possible. In this work, knowledge of fluorophore optimization was adopted and used to design new coumarin‐ based photocages. Photolysis efficiency was selectively modulated by inactivating competitive decay channels, such as twisted intramolecular charge transfer (TICT) or hydrogen‐bonding, and the photolytic release of the neurotransmitter serotonin was demonstrated. Structural modifications inspired by the fluorophore ATTO 390 led to a significant increase in the uncaging cross section that can be further improved by the simple addition of a double bond. Ultrafast transient absorption spectroscopy gave insights into the underlying solvent‐dependent photophysical dynamics. The chromophores presented here are excellently suited as new photocages in the visible wavelength range due to their simple synthesis and their superior photochemical properties.
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Affiliation(s)
- Robin Klimek
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Marvin Asido
- Institute of Physical and Theoretical Chemistry Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Volker Hermanns
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Stephan Junek
- Max Planck Institute for Brain Research Max-von-Laue Str. 4 60438 Frankfurt Germany
| | - Josef Wachtveitl
- Institute of Physical and Theoretical Chemistry Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
| | - Alexander Heckel
- Institute for Organic Chemistry and Chemical Biology Goethe University Frankfurt Max-von-Laue Str. 9 60438 Frankfurt Germany
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7
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Asido M, Hamerla C, Weber R, Horz M, Niraghatam MS, Heckel A, Burghardt I, Wachtveitl J. Ultrafast and efficient energy transfer in a one- and two-photon sensitized rhodamine-BODIPY dyad: a perspective for broadly absorbing photocages. Phys Chem Chem Phys 2022; 24:1795-1802. [PMID: 34985062 DOI: 10.1039/d1cp04528h] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In view of the demand for photoactivatable probes that operate in the visible (VIS) to near infrared (NIR) region of the spectrum, we designed a bichromophoric system based on a rhodamine fluorophore and a BODIPY photocage. Two-photon excited fluorescence (TPEF) measurements and quantum chemical calculations reveal excellent two-photon properties of the employed rhodamine derivative. Excitation of the rhodamine unit via a one- or two-photon process leads to excitation energy transfer (EET) onto the BODIPY part, which is followed by the liberation of the leaving group. Ultrafast transient absorption spectroscopy provides evidence for a highly efficient EET dynamics on a sub-500 femtosecond scale. Complementary quantum dynamical calculations using the multi-layer multiconfiguration time-dependent Hartree (ML-MCTDH) approach highlight the quantum coherent character of the EET transfer. Photorelease of p-nitroaniline (PNA) was investigated by UV/vis absorption spectroscopy by either excitation of the rhodamine or the BODIPY moiety. Even though a quantitative assessment of the PNA yield could not be achieved for this particular BODIPY cage, the present study provides a design principle for a class of photocages that can be broadly activated between 500 and 900 nm.
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Affiliation(s)
- Marvin Asido
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Carsten Hamerla
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Rebekka Weber
- Institute of Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Maximiliane Horz
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Madhava Shyam Niraghatam
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Alexander Heckel
- Institute of Organic Chemistry and Chemical Biology, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Irene Burghardt
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
| | - Josef Wachtveitl
- Institute of Physical and Theoretical Chemistry, Goethe University Frankfurt, Max-von-Laue Straße 7, 60438 Frankfurt am Main, Germany.
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8
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Mangubat-Medina AE, Ball ZT. Triggering biological processes: methods and applications of photocaged peptides and proteins. Chem Soc Rev 2021; 50:10403-10421. [PMID: 34320043 DOI: 10.1039/d0cs01434f] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
There has been a significant push in recent years to deploy fundamental knowledge and methods of photochemistry toward biological ends. Photoreactive groups have enabled chemists to activate biological function using the concept of photocaging. By granting spatiotemporal control over protein activation, these photocaging methods are fundamental in understanding biological processes. Peptides and proteins are an important group of photocaging targets that present conceptual and technical challenges, requiring precise chemoselectivity in complex polyfunctional environments. This review focuses on recent advances in photocaging techniques and methodologies, as well as their use in living systems. Photocaging methods include genetic and chemical approaches that require a deep understanding of structure-function relationships based on subtle changes in primary structure. Successful implementation of these ideas can shed light on important spatiotemporal aspects of living systems.
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Affiliation(s)
| | - Zachary T Ball
- Department of Chemistry, Rice University, Houston, TX, 77005, USA.
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Klausen M, Blanchard-Desce M. Two-photon uncaging of bioactive compounds: Starter guide to an efficient IR light switch. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C: PHOTOCHEMISTRY REVIEWS 2021. [DOI: 10.1016/j.jphotochemrev.2021.100423] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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10
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Joest EF, Winter C, Wesalo JS, Deiters A, Tampé R. Light-guided intrabodies for on-demand in situ target recognition in human cells. Chem Sci 2021; 12:5787-5795. [PMID: 35342543 PMCID: PMC8872839 DOI: 10.1039/d1sc01331a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Accepted: 03/22/2021] [Indexed: 01/18/2023] Open
Abstract
Due to their high stability and specificity in living cells, fluorescently labeled nanobodies are perfect probes for visualizing intracellular targets at an endogenous level. However, intrabodies bind unrestrainedly and hence may interfere with the target protein function. Here, we report a strategy to prevent premature binding through the development of photo-conditional intrabodies. Using genetic code expansion, we introduce photocaged amino acids within the nanobody-binding interface, which, after photo-activation, show instantaneous binding of target proteins with high spatiotemporal precision inside living cells. Due to the highly stable binding, light-guided intrabodies offer a versatile platform for downstream imaging and regulation of target proteins.
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Affiliation(s)
- Eike F Joest
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt Max-von-Laue-Str. 9 60438 Frankfurt Germany
| | - Christian Winter
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt Max-von-Laue-Str. 9 60438 Frankfurt Germany
| | - Joshua S Wesalo
- Department of Chemistry, University of Pittsburgh 219 Parkman Avenue Pittsburgh Pennsylvania 15260 USA
| | - Alexander Deiters
- Department of Chemistry, University of Pittsburgh 219 Parkman Avenue Pittsburgh Pennsylvania 15260 USA
| | - Robert Tampé
- Institute of Biochemistry, Biocenter, Goethe University Frankfurt Max-von-Laue-Str. 9 60438 Frankfurt Germany
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11
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Becker Y, Roth S, Scheurer M, Jakob A, Gacek DA, Walla PJ, Dreuw A, Wachtveitl J, Heckel A. Selective Modification for Red-Shifted Excitability: A Small Change in Structure, a Huge Change in Photochemistry. Chemistry 2021; 27:2212-2218. [PMID: 32955154 PMCID: PMC7898321 DOI: 10.1002/chem.202003672] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 09/18/2020] [Indexed: 01/13/2023]
Abstract
We developed three bathochromic, green-light activatable, photolabile protecting groups based on a nitrodibenzofuran (NDBF) core with D-π-A push-pull structures. Variation of donor substituents (D) at the favored ring position enabled us to observe their impact on the photolysis quantum yields. Comparing our new azetidinyl-NDBF (Az-NDBF) photolabile protecting group with our earlier published DMA-NDBF, we obtained insight into its excitation-specific photochemistry. While the "two-photon-only" cage DMA-NDBF was inert against one-photon excitation (1PE) in the visible spectral range, we were able to efficiently release glutamic acid from azetidinyl-NDBF with irradiation at 420 and 530 nm. Thus, a minimal change (a cyclization adding only one carbon atom) resulted in a drastically changed photochemical behavior, which enables photolysis in the green part of the spectrum.
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Affiliation(s)
- Yvonne Becker
- Institute for Organic Chemistry and Chemical BiologyGoethe University FrankfurtMax-von-Laue-Str. 760438Frankfurt am MainGermany
| | - Sina Roth
- Institute for Physical and Theoretical ChemistryGoethe University FrankfurtMax-von-Laue-Str. 760438Frankfurt am MainGermany
| | - Maximilian Scheurer
- Interdisciplinary Center for Scientific Computing (IWR)Theoretical and Computational ChemistryIm Neuenheimer Feld 205A69120HeidelbergGermany
| | - Andreas Jakob
- Institute for Organic Chemistry and Chemical BiologyGoethe University FrankfurtMax-von-Laue-Str. 760438Frankfurt am MainGermany
| | - Daniel A. Gacek
- Institute for Physical and Theoretical ChemistryTechnical University BraunschweigGaußstr. 1738106BraunschweigGermany
| | - Peter J. Walla
- Institute for Physical and Theoretical ChemistryTechnical University BraunschweigGaußstr. 1738106BraunschweigGermany
| | - Andreas Dreuw
- Interdisciplinary Center for Scientific Computing (IWR)Theoretical and Computational ChemistryIm Neuenheimer Feld 205A69120HeidelbergGermany
| | - Josef Wachtveitl
- Institute for Physical and Theoretical ChemistryGoethe University FrankfurtMax-von-Laue-Str. 760438Frankfurt am MainGermany
| | - Alexander Heckel
- Institute for Organic Chemistry and Chemical BiologyGoethe University FrankfurtMax-von-Laue-Str. 760438Frankfurt am MainGermany
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Bojtár M, Németh K, Domahidy F, Knorr G, Verkman A, Kállay M, Kele P. Conditionally Activatable Visible-Light Photocages. J Am Chem Soc 2020; 142:15164-15171. [PMID: 32786783 PMCID: PMC7472520 DOI: 10.1021/jacs.0c07508] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
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The proof of concept for conditionally
activatable photocages is
demonstrated on a new vinyltetrazine-derivatized coumarin. The tetrazine
form is disabled in terms of light-induced cargo release, however,
bioorthogonal transformation of the modulating tetrazine moiety results
in fully restored photoresponsivity. Irradiation of such a “click-armed”
photocage with blue light leads to fast and efficient release of a
set of caged model species, conjugated via various linkages. Live-cell
applicability of the concept was also demonstrated by the conditional
release of a fluorogenic probe using mitochondrial pretargeting.
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Affiliation(s)
- Márton Bojtár
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Krisztina Németh
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Farkas Domahidy
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Gergely Knorr
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary.,Faculty of Chemistry and Earth Sciences, Friedrich-Schiller-Universität Jena, Lessingstraße 8, D-07743 Jena, Germany
| | - András Verkman
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary
| | - Mihály Kállay
- Department of Physical Chemistry and Materials Science, Budapest University of Technology and Economics, P.O. Box 91, H-1521 Budapest, Hungary
| | - Péter Kele
- "Lendület" Chemical Biology Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences. Magyar tudósok krt. 2, H-1117 Budapest, Hungary
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13
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Kaewchangwat N, Thanayupong E, Jarussophon S, Niamnont N, Yata T, Prateepchinda S, Unger O, Han BH, Suttisintong K. Coumarin-Caged Compounds of 1-Naphthaleneacetic Acid as Light-Responsive Controlled-Release Plant Root Stimulators. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6268-6279. [PMID: 32396350 DOI: 10.1021/acs.jafc.0c00138] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Six coumarin-caged compounds of 1-naphthaleneacetic acid (NAA) comprising different substituents on the coumarin moiety were synthesized and evaluated for their photophysical and chemical properties as light-responsive controlled-release plant root stimulators. The 1H NMR and HPLC techniques were used to verify the release of NAA from the caged compounds. After irradiation at 365 nm, the caged compounds exhibited the fastest release rate at t1/2 of 6.7 days and the slowest release rate at t1/2 of 73.7 days. Caged compounds at high concentrations (10-5 and 10-6 M) significantly stimulate secondary root germination while free NAA at the same level is toxic and leads to inhibition of secondary root germination. The cytotoxicity of the caged compounds against fibroblasts and vero cells were evaluated, and the results suggested that, at 10-5-10-6 M, caged compounds exhibited no significant cytotoxicity to the cells. Thus, the caged compounds of NAA in this study could be of great benefit as efficient agrochemicals.
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Affiliation(s)
- Narongpol Kaewchangwat
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Eknarin Thanayupong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Suwatchai Jarussophon
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Nakorn Niamnont
- Organic Synthesis, Electrochemistry & Natural Product Research Unit, Department of Chemistry, Faculty of Science, King Mongkut's University of Technology Thonburi (KMUTT), Bangkok 10140, Thailand
| | - Teerapong Yata
- Biochemistry Unit, Department of Physiology, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sagaw Prateepchinda
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Onuma Unger
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
| | - Bao-Hang Han
- National Center for Nanoscience and Technology (NCNST), 11 Beiyitiao Zhongguancun, 100190 Beijing, P. R. China
| | - Khomson Suttisintong
- National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Thanon Phahonyothin, Tumbon Khlong Nueng, Amphoe Khlong Luang, Pathum Thani 12120, Thailand
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14
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Xu J, Zhang S, Yang H, Wen X, Peng T, Xu K, Wang G, Wang L. A chemoselective photolabile protecting group for aldehydes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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15
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Mangubat-Medina AE, Trial HO, Vargas RD, Setegne MT, Bader T, Distefano MD, Ball ZT. Red-shifted backbone N–H photocaging agents. Org Biomol Chem 2020; 18:5110-5114. [DOI: 10.1039/d0ob00923g] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A 3-nitrodibenzofuran cure provides blue-shifted reactivity in vinylogous photocleavage processes.
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Affiliation(s)
| | | | | | | | - Taysir Bader
- Department of Chemistry
- University of Minnesota
- Minneapolis
- USA
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16
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Hamerla C, Neumann C, Falahati K, von Cosel J, van Wilderen LJGW, Niraghatam MS, Kern-Michler D, Mielke N, Reinfelds M, Rodrigues-Correia A, Heckel A, Bredenbeck J, Burghardt I. Photochemical mechanism of DEACM uncaging: a combined time-resolved spectroscopic and computational study. Phys Chem Chem Phys 2020; 22:13418-13430. [DOI: 10.1039/c9cp07032j] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Combined spectroscopic and computational studies elucidate excited-state photocleavage in DEACM cages, explaining vastly different time scales for different leaving groups.
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17
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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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18
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Elamri I, Heumüller M, Herzig L, Stirnal E, Wachtveitl J, Schuman EM, Schwalbe H. A New Photocaged Puromycin for an Efficient Labeling of Newly Translated Proteins in Living Neurons. Chembiochem 2018; 19:2458-2464. [DOI: 10.1002/cbic.201800408] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/11/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Isam Elamri
- Center for Biomolecular Magnetic ResonanceInstitute of Organic Chemistry and Chemical BiologyGoethe-University Frankfurt am Main Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Maximilian Heumüller
- Department of Synaptic Plasticity, MPI for Brain ResearchGoethe-University Frankfurt am Main Max-von-Laue-Strasse 4 60438 Frankfurt am Mail Germany
| | - Lisa‐M. Herzig
- Institute of Physical and Theoretical ChemistryGoethe-University Frankfurt am Main Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Elke Stirnal
- Center for Biomolecular Magnetic ResonanceInstitute of Organic Chemistry and Chemical BiologyGoethe-University Frankfurt am Main Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Josef Wachtveitl
- Institute of Physical and Theoretical ChemistryGoethe-University Frankfurt am Main Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
| | - Erin M. Schuman
- Department of Synaptic Plasticity, MPI for Brain ResearchGoethe-University Frankfurt am Main Max-von-Laue-Strasse 4 60438 Frankfurt am Mail Germany
| | - Harald Schwalbe
- Center for Biomolecular Magnetic ResonanceInstitute of Organic Chemistry and Chemical BiologyGoethe-University Frankfurt am Main Max-von-Laue-Strasse 7 60438 Frankfurt am Main Germany
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19
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Dissection of Protein Kinase Pathways in Live Cells Using Photoluminescent Probes: Surveillance or Interrogation? CHEMOSENSORS 2018. [DOI: 10.3390/chemosensors6020019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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