1
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Guo Q, Qian X, Chen J, Wu Y, Fu K, Sun Z, Zheng Z, Liu Y, Zhou Y. Synthesis and nitroxyl (HNO) donating properties of benzoxadiazole-based Piloty's acids. Nitric Oxide 2023:S1089-8603(23)00048-4. [PMID: 37217001 DOI: 10.1016/j.niox.2023.05.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 05/16/2023] [Accepted: 05/19/2023] [Indexed: 05/24/2023]
Abstract
Developing functional nitroxyl (HNO) donors play a significant role in the further exploration of endogenous HNO in biochemistry and pharmacology. In this work, two novel Piloty's acids (SBD-D1 and SBD-D2) were proposed by incorporating benzoxadiazole-based fluorophores, in order to achieve the dual-function of releasing both HNO and a fluorophore in situ. Under physiological conditions, both SBD-D1 and SBD-D2 efficiently donated HNO (t1/2 = 10.96 and 8.18 min, respectively). The stoichiometric generation of HNO was determined by both vitamin B12 and phosphine compound traps. Interestingly, due to the different substitution groups on the aromatic ring, SBD-D1 with the chlorine showed no fluorescence emission, but SBD-D2 was strongly fluorescent due to the presence of the dimethylamine group. Specifically, the fluorescent signal would decrease during the release process of HNO. Moreover, theoretical calculations were performed to understand the emission difference. A strong radiation derived from benzoxadiazole with dimethylamine group due to the large transition dipole moment (∼4.3 Debye), while the presence of intramolecular charge transfer process in the donor with chlorine group caused a small transition dipole moment (<0.1 Debye). Finally, these studies would contribute to the future design and application of novel functional HNO donors for the exploration of HNO biochemistry and pharmacology.
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Affiliation(s)
- Qingwei Guo
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228, China
| | - Xin Qian
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
| | - Jiajun Chen
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228, China
| | - Yangyang Wu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228, China
| | - Kun Fu
- Department of Joint Surgery, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, 570102, China
| | - Zhicheng Sun
- Beijing Engineering Research Center of Printed Electronics, Beijing Institute of Graphic Communication, Beijing, 102600, China
| | - Zilong Zheng
- Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing, 100124, China
| | - Yuanyuan Liu
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228, China.
| | - Yang Zhou
- Key Laboratory of Advanced Materials of Tropical Island Resources of Ministry of Education and School of Chemical Engineering and Technology, Hainan University, Haikou, Hainan, 570228, China.
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2
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Kelly SS, Ni X, Yuen V, Radford MN, Xian M. C-Nitrosothioformamide: A Donor Template for Dual Release of HNO and H2S. Chembiochem 2022; 23:e202200101. [PMID: 35344248 DOI: 10.1002/cbic.202200101] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 03/25/2022] [Indexed: 11/09/2022]
Abstract
C-Nitrosothioformamide was demonstrated to be a donor template for dual release of HNO and COS triggered by a retro-Diels-Alder reaction. COS is an H2S precursor in the presence of carbonic anhydrase. This process produces HNO and H2S in a slow but steady manner. As such, the direct reaction between HNO and H2S under this situation appears to be minor. This may provide a useful tool to study the synergistic effects of HNO and H2S.
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Affiliation(s)
- Shane S Kelly
- Washington State University, Chemistry, UNITED STATES
| | - Xiang Ni
- Brown University, Chemistry, UNITED STATES
| | | | | | - Ming Xian
- Brown University, Department of Chemistry, 324 Brook Street, 02912, Providence, UNITED STATES
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3
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Bharadwaj V, Rahman MS, Sampson P, Seed AJ, Brasch NE. Exploring the Potential of 2-(2-Nitrophenyl)ethyl-Caged N-Hydroxysulfonamides for the Photoactivated Release of Nitroxyl (HNO). J Org Chem 2021; 86:16448-16463. [PMID: 34797664 DOI: 10.1021/acs.joc.1c01800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The emergence of nitroxyl (HNO) as a biological signaling molecule is attracting increasing attention. HNO-based prodrugs show considerable potential in treating congestive heart failure, with HNO reacting rapidly with metal centers and protein-bound and free thiols. A new class of 2-(2-nitrophenyl)ethyl (2-NPE)-photocaged N-hydroxysulfonamides has been developed, and the mechanisms of photodecomposition have been investigated. Three photodecomposition pathways are observed: the desired concomitant C-O/N-S bond cleavage to generate HNO, sulfinate, and 2-nitrostyrene, C-O bond cleavage to give the parent sulfohydroxamic acid and 2-nitrostyrene, and O-N bond cleavage to release a sulfonamide and 2-nitrophenylacetaldehyde. Laser flash photolysis experiments provide support for a Norrish type II mechanism involving 1,5-hydrogen atom abstraction to generate an aci-nitro species. A mechanism is proposed in which the (Z)-aci-nitro intermediate undergoes either C-O bond cleavage to release RSO2NHO(H), concerted C-O/N-S bond cleavage to generate sulfinate and HNO, or isomerization to the (E)-isomer prior to O-N bond cleavage. The pKa of the N(H) of the N-hydroxysulfonamide plays a key role in determining whether C-O or concerted C-O/N-S bond cleavage occurs. Deprotonating this site favors the desired C-O/N-S bond cleavage at the expense of an increased level of undesired O-N bond cleavage. Triplet state quenchers have no effect on the observed photoproducts.
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Affiliation(s)
- Vinay Bharadwaj
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand
| | - Mohammad S Rahman
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Paul Sampson
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Alexander J Seed
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Nicola E Brasch
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand.,The Maurice Wilkins Centre for Molecular Biodiscovery, Private Bag 92019, Auckland 1142, New Zealand
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4
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Muniz Carvalho E, Silva Sousa EH, Bernardes‐Génisson V, Gonzaga de França Lopes L. When NO
.
Is not Enough: Chemical Systems, Advances and Challenges in the Development of NO
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and HNO Donors for Old and Current Medical Issues. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100527] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Edinilton Muniz Carvalho
- Bioinorganic Group Department of Organic and Inorganic Chemistry Center of Sciences Federal University of Ceará Pici Campus Fortaleza 60455-760 Brazil
- CNRS Laboratoire de Chimie de Coordination LCC UPR 8241 205 Route de Narbonne, 44099 31077 Toulouse, Cedex 4 France
- Université de Toulouse Université Paul Sabatier UPS 118 Route de Narbonne 31062 Toulouse, Cedex 9 France
| | - Eduardo Henrique Silva Sousa
- Bioinorganic Group Department of Organic and Inorganic Chemistry Center of Sciences Federal University of Ceará Pici Campus Fortaleza 60455-760 Brazil
| | - Vania Bernardes‐Génisson
- CNRS Laboratoire de Chimie de Coordination LCC UPR 8241 205 Route de Narbonne, 44099 31077 Toulouse, Cedex 4 France
- Université de Toulouse Université Paul Sabatier UPS 118 Route de Narbonne 31062 Toulouse, Cedex 9 France
| | - Luiz Gonzaga de França Lopes
- Bioinorganic Group Department of Organic and Inorganic Chemistry Center of Sciences Federal University of Ceará Pici Campus Fortaleza 60455-760 Brazil
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5
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Cink RB, Zhou Y, Du L, Rahman MS, Phillips DL, Simpson MC, Seed AJ, Sampson P, Brasch NE. Mechanistic Insights into Rapid Generation of Nitroxyl from a Photocaged N-Hydroxysulfonamide Incorporating the (6-Hydroxynaphthalen-2-yl)methyl Chromophore. J Org Chem 2021; 86:8056-8068. [PMID: 34107217 DOI: 10.1021/acs.joc.1c00457] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
HNO is a highly reactive molecule that shows promise in treating heart failure. Molecules that rapidly release HNO with precise spatial and temporal control are needed to investigate the biology of this signaling molecule. (Hydroxynaphthalen-2-yl)methyl-photocaged N-hydroxysulfonamides are a new class of photoactive HNO generators. Recently, it was shown that a (6-hydroxynaphthalen-2-yl)methyl (6,2-HNM)-photocaged derivative of N-hydroxysulfonamide incorporating the trifluoromethanesulfonamidoxy group (1) quantitatively generates HNO. Mechanistic studies have now been carried out on this system and reveal that the ground state protonation state plays a key role in whether concerted heterolytic C-O/N-S bond cleavage to release HNO occurs versus undesired O-N bond cleavage. N-Deprotonation of 1 can be achieved by adding an aqueous buffer or a carboxylate salt to an aprotic solvent. Evidence is presented for C-O/N-S bond heterolysis occurring directly from the singlet excited state of the N-deprotonated parent molecule on the picosecond time scale, using femtosecond time-resolved transient absorption spectroscopy, to give a carbocation and 1NO-. This is consistent with the observation of significant fluorescence quenching when HNO is generated. The carbocation intermediate reacts rapidly with nucleophiles including water, MeOH, or even (H)NO in the absence of a molecule that reacts rapidly with (H)NO to give an oxime.
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Affiliation(s)
- Ruth B Cink
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Photon Factory, School of Chemical Sciences and Department of Physics, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand
| | - Yang Zhou
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Lili Du
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR 99077, P. R. China
| | - Mohammad S Rahman
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - David Lee Phillips
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR 99077, P. R. China
| | - M Cather Simpson
- The Photon Factory, School of Chemical Sciences and Department of Physics, The University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,The MacDiarmid Institute for Advanced Materials and Nanotechnology, Wellington 6012, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand
| | - Alexander J Seed
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Paul Sampson
- Department of Chemistry and Biochemistry, Kent State University, Kent, Ohio 44242, United States
| | - Nicola E Brasch
- School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.,The Dodd-Walls Centre for Quantum and Photonic Technologies, Dunedin 9054, New Zealand.,The Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
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6
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7
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Möller MN, Rios N, Trujillo M, Radi R, Denicola A, Alvarez B. Detection and quantification of nitric oxide-derived oxidants in biological systems. J Biol Chem 2019; 294:14776-14802. [PMID: 31409645 DOI: 10.1074/jbc.rev119.006136] [Citation(s) in RCA: 96] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The free radical nitric oxide (NO•) exerts biological effects through the direct and reversible interaction with specific targets (e.g. soluble guanylate cyclase) or through the generation of secondary species, many of which can oxidize, nitrosate or nitrate biomolecules. The NO•-derived reactive species are typically short-lived, and their preferential fates depend on kinetic and compartmentalization aspects. Their detection and quantification are technically challenging. In general, the strategies employed are based either on the detection of relatively stable end products or on the use of synthetic probes, and they are not always selective for a particular species. In this study, we describe the biologically relevant characteristics of the reactive species formed downstream from NO•, and we discuss the approaches currently available for the analysis of NO•, nitrogen dioxide (NO2 •), dinitrogen trioxide (N2O3), nitroxyl (HNO), and peroxynitrite (ONOO-/ONOOH), as well as peroxynitrite-derived hydroxyl (HO•) and carbonate anion (CO3 •-) radicals. We also discuss the biological origins of and analytical tools for detecting nitrite (NO2 -), nitrate (NO3 -), nitrosyl-metal complexes, S-nitrosothiols, and 3-nitrotyrosine. Moreover, we highlight state-of-the-art methods, alert readers to caveats of widely used techniques, and encourage retirement of approaches that have been supplanted by more reliable and selective tools for detecting and measuring NO•-derived oxidants. We emphasize that the use of appropriate analytical methods needs to be strongly grounded in a chemical and biochemical understanding of the species and mechanistic pathways involved.
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Affiliation(s)
- Matías N Möller
- Laboratorio de Fisicoquímica Biológica, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay.,Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Natalia Rios
- Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay.,Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Madia Trujillo
- Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay.,Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Rafael Radi
- Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay.,Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Ana Denicola
- Laboratorio de Fisicoquímica Biológica, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay.,Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay
| | - Beatriz Alvarez
- Centro de Investigaciones Biomédicas (CEINBIO), Universidad de la República, Montevideo, Uruguay .,Laboratorio de Enzimología, Facultad de Ciencias, Universidad de la República, 11400 Montevideo, Uruguay
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8
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Zhou Y, Cink RB, Seed AJ, Simpson MC, Sampson P, Brasch NE. Stoichiometric Nitroxyl Photorelease Using the (6-Hydroxy-2-naphthalenyl)methyl Phototrigger. Org Lett 2019; 21:1054-1057. [PMID: 30694069 DOI: 10.1021/acs.orglett.8b04099] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The design and synthesis of a photoactivatable HNO donor incorporating the (6-hydroxynaphthalen-2-yl)methyl (6,2-HNM) photocage coupled to the trifluoromethanesulfonamidoxy analogue of the well-established HNO generator Piloty's acid is described. The photoactive HNO donor stoichiometrically generates HNO (∼98%) at neutral pH conditions, and evidence for concerted C-O and N-S bond cleavage was obtained. The methanesulfonamidoxy analogue primarily undergoes undesired N-O bond cleavage.
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Affiliation(s)
- Yang Zhou
- Department of Chemistry and Biochemistry , Kent State University , Kent , Ohio 44242 , United States
| | - Ruth B Cink
- School of Science , Auckland University of Technology , Auckland 1142 , New Zealand.,Dodd-Walls Centre for Quantum and Photonic Technologies , Dunedin 9054 , New Zealand.,The Photon Factory, School of Chemical Sciences , The University of Auckland , Auckland 1142 , New Zealand
| | - Alexander J Seed
- Department of Chemistry and Biochemistry , Kent State University , Kent , Ohio 44242 , United States
| | - M Cather Simpson
- Dodd-Walls Centre for Quantum and Photonic Technologies , Dunedin 9054 , New Zealand.,The Photon Factory, School of Chemical Sciences , The University of Auckland , Auckland 1142 , New Zealand.,The Department of Physics , The University of Auckland, The MacDiarmid Institute for Advanced Materials and Nanotechnology , Auckland 1142 , New Zealand
| | - Paul Sampson
- Department of Chemistry and Biochemistry , Kent State University , Kent , Ohio 44242 , United States
| | - Nicola E Brasch
- School of Science , Auckland University of Technology , Auckland 1142 , New Zealand.,Dodd-Walls Centre for Quantum and Photonic Technologies , Dunedin 9054 , New Zealand
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9
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Smulik-Izydorczyk R, Rostkowski M, Gerbich A, Jarmoc D, Adamus J, Leszczyńska A, Michalski R, Marcinek A, Kramkowski K, Sikora A. Decomposition of Piloty's acid derivatives – Toward the understanding of factors controlling HNO release. Arch Biochem Biophys 2019; 661:132-144. [DOI: 10.1016/j.abb.2018.11.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 10/11/2018] [Accepted: 11/14/2018] [Indexed: 01/21/2023]
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10
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Smulik-Izydorczyk R, Dębowska K, Pięta J, Michalski R, Marcinek A, Sikora A. Fluorescent probes for the detection of nitroxyl (HNO). Free Radic Biol Med 2018; 128:69-83. [PMID: 29704623 DOI: 10.1016/j.freeradbiomed.2018.04.564] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2017] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 11/19/2022]
Abstract
Nitroxyl (HNO), which according to the IUPAC recommended nomenclature should be named azanone, is the protonated one-electron reduction product of nitric oxide. Recently, it has gained a considerable attention due to the interesting pharmacological effects of its donors. Although there has been great progress in the understanding of HNO chemistry and chemical biology, it still remains the most elusive reactive nitrogen species, and its selective detection is a real challenge. The development of reliable methodologies for the direct detection of azanone is essential for the understanding of important signaling properties of this reactive intermediate and its pharmacological potential. Over the last decade, there has been considerable progress in the development of low-molecular-weight fluorogenic probes for the detection of HNO, and therefore, in this review, we have focused on the challenges and limitations of and perspectives on nitroxyl detection based on the use of such probes.
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Affiliation(s)
- Renata Smulik-Izydorczyk
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Karolina Dębowska
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Jakub Pięta
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Radosław Michalski
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Andrzej Marcinek
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland
| | - Adam Sikora
- Institute of Applied Radiation Chemistry, Lodz University of Technology, Zeromskiego 116, 90-924 Lodz, Poland.
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11
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Xu WL, Zhang H, Hu YL, Yang H, Chen J, Zhou L. Metal-Free Dehydrogenative Diels-Alder Reactions of Prenyl Derivatives with Dienophiles via a Thermal Reversible Process. Org Lett 2018; 20:5774-5778. [PMID: 30182721 DOI: 10.1021/acs.orglett.8b02469] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An efficient dehydrogenative Diels-Alder reaction of prenyl derivatives with dienophiles has been developed. The reaction exhibits broad substrate scope and provides efficient access to cyclohexene derivatives with good to excellent yields. A reasonable mechanism involving a metal-free thermal reversible process is proposed.
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Affiliation(s)
- Wen-Lei Xu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Heng Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Yu-Long Hu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Hui Yang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, Department of Chemistry & Materials Science , Northwest University , Xi'an 710127 , P.R. China
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12
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Bojadzic D, Chen J, Alcazar O, Buchwald P. Design, Synthesis, and Evaluation of Novel Immunomodulatory Small Molecules Targeting the CD40⁻CD154 Costimulatory Protein-Protein Interaction. Molecules 2018; 23:E1153. [PMID: 29751636 PMCID: PMC5978685 DOI: 10.3390/molecules23051153] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 05/02/2018] [Accepted: 05/09/2018] [Indexed: 12/31/2022] Open
Abstract
We report the design, synthesis, and testing of novel small-molecule compounds targeting the CD40⁻CD154 (CD40L) costimulatory interaction for immunomodulatory purposes. This protein-protein interaction (PPI) is a TNF-superfamily (TNFSF) costimulatory interaction that is an important therapeutic target since it plays crucial roles in the activation of T cell responses, and there is resurgent interest in its modulation with several biologics in development. However, this interaction, just as all other PPIs, is difficult to target by small molecules. Following up on our previous work, we have now identified novel compounds such as DRI-C21091 or DRI-C21095 that show activity (IC50) in the high nanomolar to low micromolar range in the binding inhibition assay and more than thirty-fold selectivity versus other TNFSF PPIs including OX40⁻OX40L, BAFFR-BAFF, and TNF-R1-TNFα. Protein thermal shift (differential scanning fluorimetry) assays indicate CD154 and not CD40 as the binding partner. Activity has also been confirmed in cell assays and in a mouse model (alloantigen-induced T cell expansion in a draining lymph node). Our results expand the chemical space of identified small-molecule CD40⁻CD154 costimulatory inhibitors and provide lead structures that have the potential to be developed as orally bioavailable immunomodulatory therapeutics that are safer and less immunogenic than corresponding biologics.
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Affiliation(s)
- Damir Bojadzic
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
| | - Jinshui Chen
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
| | - Oscar Alcazar
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
| | - Peter Buchwald
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
- Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA.
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13
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Zhou Y, Cink RB, Fejedelem ZA, Cather Simpson M, Seed AJ, Sampson P, Brasch NE. Development of Photoactivatable Nitroxyl (HNO) Donors Incorporating the (3‐Hydroxy‐2‐naphthalenyl)methyl Phototrigger. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800092] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Yang Zhou
- Department of Chemistry and Biochemistry Kent State University 44242 Kent OH USA
| | - Ruth B. Cink
- School of Science Auckland University of Technology Private Bag 92006 1142 Auckland New Zealand
| | - Zachary A. Fejedelem
- Department of Chemistry and Biochemistry Kent State University 44242 Kent OH USA
| | - M. Cather Simpson
- The Photon Factory School of Chemical Sciences The University of Auckland Private Bag 92019 Auckland New Zealand
| | - Alexander J. Seed
- Department of Chemistry and Biochemistry Kent State University 44242 Kent OH USA
| | - Paul Sampson
- Department of Chemistry and Biochemistry Kent State University 44242 Kent OH USA
| | - Nicola E. Brasch
- School of Science Auckland University of Technology Private Bag 92006 1142 Auckland New Zealand
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14
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Kawaguchi M, Tani T, Hombu R, Ieda N, Nakagawa H. Development and cellular application of visible-light-controllable HNO releasers based on caged Piloty's acid. Chem Commun (Camb) 2018; 54:10371-10374. [DOI: 10.1039/c8cc04954h] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Novel visible-light-controllable HNO releasers was developed based on a caged form of Piloty's acid, and applied for cellular systems.
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Affiliation(s)
| | - Takuma Tani
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Nagoya
- Japan
| | - Ryoma Hombu
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Nagoya
- Japan
| | - Naoya Ieda
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Nagoya
- Japan
| | - Hidehiko Nakagawa
- Graduate School of Pharmaceutical Sciences
- Nagoya City University
- Nagoya
- Japan
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15
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Chen J, Song Y, Bojadzic D, Tamayo-Garcia A, Landin AM, Blomberg BB, Buchwald P. Small-Molecule Inhibitors of the CD40-CD40L Costimulatory Protein-Protein Interaction. J Med Chem 2017; 60:8906-8922. [PMID: 29024591 PMCID: PMC5823691 DOI: 10.1021/acs.jmedchem.7b01154] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Costimulatory interactions are required for T cell activation and development of an effective immune response; hence, they are valuable therapeutic targets for immunomodulation. However, they, as all other protein-protein interactions, are difficult to target by small molecules. Here, we report the identification of novel small-molecule inhibitors of the CD40-CD40L interaction designed starting from the chemical space of organic dyes. For the most promising compounds such as DRI-C21045, activity (IC50) in the low micromolar range has been confirmed in cell assays including inhibition of CD40L-induced activation in NF-κB sensor cells, THP-1 myeloid cells, and primary human B cells as well as in murine allogeneic skin transplant and alloantigen-induced T cell expansion in draining lymph node experiments. Specificity versus other TNF-superfamily interactions (TNF-R1-TNF-α) and lack of cytotoxicity have also been confirmed at these concentrations. These novel compounds provide proof-of-principle evidence for the possibility of small-molecule inhibition of costimulatory protein-protein interactions, establish the structural requirements needed for efficient CD40-CD40L inhibition, and serve to guide the search for such immune therapeutics.
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Affiliation(s)
- Jinshui Chen
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Yun Song
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
- Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Damir Bojadzic
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Alejandro Tamayo-Garcia
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Ana Marie Landin
- Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Bonnie B. Blomberg
- Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
| | - Peter Buchwald
- Diabetes Research Institute, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
- Molecular and Cellular Pharmacology, Miller School of Medicine, University of Miami, Miami, Florida 33136, USA
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16
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Joshi BP, Memeo MG, Quadrelli P. Solid-phase supported nitrosocarbonyl intermediates: Old scope and new limitations in the organic synthesis. Tetrahedron Lett 2017. [DOI: 10.1016/j.tetlet.2017.07.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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17
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Zhao Y, Bolton SG, Pluth MD. Light-Activated COS/H 2S Donation from Photocaged Thiocarbamates. Org Lett 2017; 19:2278-2281. [PMID: 28414240 DOI: 10.1021/acs.orglett.7b00808] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Hydrogen sulfide (H2S) is an important biomolecule, and responsive chemical tools for its delivery are needed. Here, we utilize the photocleavable o-nitrobenzyl group to unmask caged thiocarbamates and to access photoactivated H2S releasing molecules. These donors function by the initial release of carbonyl sulfide (COS), which is quickly hydrolyzed to H2S by carbonic anhydrase (CA). Our investigations demonstrate that o-nitrobenzyl-caged thiocarbamates can serve as a donor platform for the bio-orthogonal stimulated release of COS/H2S.
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Affiliation(s)
- Yu Zhao
- Department of Chemistry and Biochemistry, Material Science Institute, Institute of Molecular Biology, University of Oregon , Eugene, Oregon 97403, United States
| | - Sarah G Bolton
- Department of Chemistry and Biochemistry, Material Science Institute, Institute of Molecular Biology, University of Oregon , Eugene, Oregon 97403, United States
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Material Science Institute, Institute of Molecular Biology, University of Oregon , Eugene, Oregon 97403, United States
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18
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Abstract
The nitrosocarbonyls (R-CONO) are highly reactive species and remarkable intermediates toward different synthetic targets. This review will cover a research area whose impact in current organic synthesis is constantly increasing in the chemical community. This review represents the first and comprehensive picture on the generation and trapping of nitrosocarbonyls and is solidly built on more than 380 papers. Six different classes of key starting materials such as hydroxamic acids, N-hydroxy carbamates, N-hydroxyureas, nitrile oxides, and 1,2,4-oxadiazole-4-oxides were highlighted. The content of the review surveys all the methods to generate the nitrosocarbonyls through different approaches (oxidative, thermal, photochemical, catalytic, aerobic, and the less common ones) in the light of efficiency, yields, and mildness. The most successful trapping agents employed to catch these fleeting intermediates are reviewed, exploiting their superior dienophilic, enophilic, and electrophilic power. The work is completed by paragraphs dedicated to the detection of the intermediates, theoretical studies, and insights about the challenges and future directions for the field.
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Affiliation(s)
- Misal Giuseppe Memeo
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
| | - Paolo Quadrelli
- Dipartimento di Chimica, Università degli Studi di Pavia , Viale Taramelli 12, 27100 Pavia, Italy
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19
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Zhou Y, Cink RB, Dassanayake RS, Seed AJ, Brasch NE, Sampson P. Rapid Photoactivated Generation of Nitroxyl (HNO) under Neutral pH Conditions. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201605160] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yang Zhou
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Ruth B. Cink
- School of Applied Sciences; Auckland University of Technology (AUT); Private Bag 92006 Auckland 1142 New Zealand
| | - Rohan S. Dassanayake
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Alexander J. Seed
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Nicola E. Brasch
- School of Applied Sciences; Auckland University of Technology (AUT); Private Bag 92006 Auckland 1142 New Zealand
| | - Paul Sampson
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
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20
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Zhou Y, Cink RB, Dassanayake RS, Seed AJ, Brasch NE, Sampson P. Rapid Photoactivated Generation of Nitroxyl (HNO) under Neutral pH Conditions. Angew Chem Int Ed Engl 2016; 55:13229-13232. [DOI: 10.1002/anie.201605160] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 08/03/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Yang Zhou
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Ruth B. Cink
- School of Applied Sciences; Auckland University of Technology (AUT); Private Bag 92006 Auckland 1142 New Zealand
| | - Rohan S. Dassanayake
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Alexander J. Seed
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
| | - Nicola E. Brasch
- School of Applied Sciences; Auckland University of Technology (AUT); Private Bag 92006 Auckland 1142 New Zealand
| | - Paul Sampson
- Department of Chemistry and Biochemistry; Kent State University (KSU); Kent OH 44240 USA
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21
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Miao Z, King SB. Recent advances in the chemical biology of nitroxyl (HNO) detection and generation. Nitric Oxide 2016; 57:1-14. [PMID: 27108951 PMCID: PMC4910183 DOI: 10.1016/j.niox.2016.04.006] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Accepted: 04/18/2016] [Indexed: 01/01/2023]
Abstract
Nitroxyl or azanone (HNO) represents the redox-related (one electron reduced and protonated) relative of the well-known biological signaling molecule nitric oxide (NO). Despite the close structural similarity to NO, defined biological roles and endogenous formation of HNO remain unclear due to the high reactivity of HNO with itself, soft nucleophiles and transition metals. While significant work has been accomplished in terms of the physiology, biology and chemistry of HNO, important and clarifying work regarding HNO detection and formation has occurred within the last 10 years. This review summarizes advances in the areas of HNO detection and donation and their application to normal and pathological biology. Such chemical biological tools allow a deeper understanding of biological HNO formation and the role that HNO plays in a variety of physiological systems.
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Affiliation(s)
- Zhengrui Miao
- Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109, USA
| | - S Bruce King
- Department of Chemistry, Wake Forest University, Winston-Salem, NC 27109, USA.
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22
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Kensy VK, Peterson GI, Church DC, Yakelis NA, Boydston AJ. Investigation of the dynamic nature of 1,2-oxazines derived from peralkylcyclopentadiene and nitrosocarbonyl species. Org Biomol Chem 2016; 14:5617-21. [PMID: 27143218 DOI: 10.1039/c6ob00400h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We have investigated the reversible hetero-Diels-Alder reaction of 1,2-oxazines derived from a peralkylcyclopentadiene and a series of nitrosocarbonyl dienophiles. The nature of the dienophile was found to impart broad tunability to the dynamic character of the oxazine adducts. The reversibility was also observed in polymeric systems. The fidelity of the reaction and tunable sensitivity toward elevated temperature and water signify potential applications in the development of dynamic covalent materials or delivery systems for small molecule payloads.
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Affiliation(s)
- Victoria K Kensy
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.
| | - Gregory I Peterson
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.
| | - Derek C Church
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.
| | - Neal A Yakelis
- Department of Chemistry, Pacific Lutheran University, Tacoma, Washington 98447, USA
| | - Andrew J Boydston
- Department of Chemistry, University of Washington, Seattle, Washington 98195, USA.
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23
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Schultz KP, Spivey DW, Loya EK, Kellon JE, Taylor LM, McConville MR. Photochemical locking and unlocking of an acyl nitroso dienophile in the Diels–Alder reaction. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.02.044] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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HNO/Thiol Biology as a Therapeutic Target. OXIDATIVE STRESS IN APPLIED BASIC RESEARCH AND CLINICAL PRACTICE 2016. [DOI: 10.1007/978-3-319-30705-3_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Da Silva ACH, Da Silva JLF, Franco DW. Nitroxyl as a ligand in ruthenium tetraammine systems: a density functional theory study. Dalton Trans 2016; 45:4907-15. [DOI: 10.1039/c5dt03706a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The properties of the free nitroxyl molecule and the nitroxyl ligand in Ru(ii) tetraammines (trans-[Ru(NH3)4(nitroxyl)n(L)]2+n (n = nitroxyl charge; L = NH3, py, P(OEt)3, H2O, Cl− and Br−)) were studied using density functional theory.
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Affiliation(s)
| | | | - Douglas W. Franco
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
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26
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Affiliation(s)
- Ek Raj Thapaliya
- Laboratory for Molecular
Photonics, Department of Chemistry, University of Miami, 1301 Memorial
Drive, Coral Gables, Florida 33146-0431, United States
| | - Burjor Captain
- Laboratory for Molecular
Photonics, Department of Chemistry, University of Miami, 1301 Memorial
Drive, Coral Gables, Florida 33146-0431, United States
| | - Françisco M. Raymo
- Laboratory for Molecular
Photonics, Department of Chemistry, University of Miami, 1301 Memorial
Drive, Coral Gables, Florida 33146-0431, United States
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27
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Aizawa K, Nakagawa H, Matsuo K, Kawai K, Ieda N, Suzuki T, Miyata N. Piloty’s acid derivative with improved nitroxyl-releasing characteristics. Bioorg Med Chem Lett 2013; 23:2340-3. [DOI: 10.1016/j.bmcl.2013.02.062] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2012] [Revised: 02/06/2013] [Accepted: 02/13/2013] [Indexed: 10/27/2022]
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28
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Matsuo K, Nakagawa H, Adachi Y, Kameda E, Aizawa K, Tsumoto H, Suzuki T, Miyata N. Photoinduced upregulation of calcitonin gene-related peptide in A549 cells through HNO release from a hydrophilic photocontrollable HNO donor. Chem Pharm Bull (Tokyo) 2012; 60:1055-62. [PMID: 22863710 DOI: 10.1248/cpb.c12-00348] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Nitroxyl (HNO), a one-electron-reduced form of nitric oxide, has various biological activities, including a cardioprotective effect. Here, we first synthesized another, more hydrophilic photocontrollable HNO donor (3), which can release HNO in a spatially and temporally controlled manner, and then examined the properties of our series of compounds as practical HNO donors in a cellular system under photocontrol. We selected compound 2 as the preferred donor, and used it to show that calcitonin gene-related peptide (CGRP) can be upregulated in A549 cells via photocontrolled HNO release. This result demonstrates the suitability of this photocontrollable HNO donor for biological investigations.
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Affiliation(s)
- Kazuya Matsuo
- Department of Organic and Medicinal Chemistry, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Nagoya, Aichi 467-8603, Japan
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29
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Controlled release of HNO from chemical donors for biological applications. J Inorg Biochem 2012; 118:187-90. [PMID: 23140899 DOI: 10.1016/j.jinorgbio.2012.10.004] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 10/02/2012] [Accepted: 10/04/2012] [Indexed: 11/21/2022]
Abstract
Nitroxyl (HNO) is a small molecule with various pharmacological effects, including cardioprotective action. It is thought to serve as a modulator of various biochemical pathways. But, it is difficult to apply HNO directly for biological experiments or therapeutic treatment because it is highly reactive, readily dimerizing or reacting with biological targets under ambient conditions. Therefore, HNO donor molecules that release HNO under physiological conditions, especially those that allow precisely controllable release, would be useful to study the activities of HNO at the cellular level. This short review focuses on recently developed photocontrollable HNO-releasing compounds, which are expected to be suitable for achieving site-specific and temporally controlled HNO release in biomedical investigations. An illustrative application for the study of HNO-mediated upregulation of calcitonin gene-related peptide (CGRP) in A549 cells is described.
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30
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The effect of nitro substitution on the photochemistry of benzyl benozhydroxamate: Photoinduced release of benzohydroxamic acid. J Photochem Photobiol A Chem 2012. [DOI: 10.1016/j.jphotochem.2011.10.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Doctorovich F, Bikiel D, Pellegrino J, Suárez SA, Larsen A, Martí MA. Nitroxyl (azanone) trapping by metalloporphyrins. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.012] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Nakagawa H. Photocontrollable nitric oxide (NO) and nitroxyl (HNO) donors and their release mechanisms. Nitric Oxide 2011; 25:195-200. [DOI: 10.1016/j.niox.2010.12.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2010] [Revised: 12/06/2010] [Accepted: 12/11/2010] [Indexed: 01/25/2023]
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33
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34
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DuMond JF, King SB. The chemistry of nitroxyl-releasing compounds. Antioxid Redox Signal 2011; 14:1637-48. [PMID: 21235345 PMCID: PMC3113415 DOI: 10.1089/ars.2010.3838] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/13/2010] [Accepted: 01/14/2011] [Indexed: 01/11/2023]
Abstract
Nitroxyl (HNO) demonstrates a diverse and unique biological profile compared to nitric oxide, a redox-related compound. Although numerous studies support the use of HNO as a therapeutic agent, the inherent chemical reactivity of HNO requires the use of donor molecules. Two general chemical strategies currently exist for HNO generation from nitrogen-containing molecules: (i) the disproportionation of hydroxylamine derivatives containing good leaving groups attached to the nitrogen atom and (ii) the decomposition of nitroso compounds (X-N=O, where X represents a good leaving group). This review summarizes the synthesis and structure, the HNO-releasing mechanisms, kinetics and by-product formation, and alternative reactions of six major groups of HNO donors: Angeli's salt, Piloty's acid and its derivatives, cyanamide, diazenium diolate-derived compounds, acyl nitroso compounds, and acyloxy nitroso compounds. A large body of work exists defining these six groups of HNO donors and the overall chemistry of each donor requires consideration in light of its ability to produce HNO. The increasing interest in HNO biology and the potential of HNO-based therapeutics presents exciting opportunities to further develop HNO donors as both research tools and potential treatments.
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Affiliation(s)
- Jenna F DuMond
- Department of Chemistry, Wake Forest University, Winston-Salem, North Carolina 27109, USA
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35
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Matsuo K, Nakagawa H, Adachi Y, Kameda E, Tsumoto H, Suzuki T, Miyata N. Alternative photoinduced release of HNO or NO from an acyl nitroso compound, depending on environmental polarity. Chem Commun (Camb) 2010; 46:3788-90. [PMID: 20393655 DOI: 10.1039/c001502d] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hydrophilic hetero-Diels-Alder cycloadduct was synthesized as a novel photocontrollable donor of reactive nitrogen species. Production of either nitric oxide (NO) or nitroxyl (HNO) was photoinduced from this compound, depending on the environmental polarity.
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Affiliation(s)
- Kazuya Matsuo
- Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Aichi 467-8603, Japan
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36
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Switzer CH, Flores-Santana W, Mancardi D, Donzelli S, Basudhar D, Ridnour LA, Miranda KM, Fukuto JM, Paolocci N, Wink DA. The emergence of nitroxyl (HNO) as a pharmacological agent. BIOCHIMICA ET BIOPHYSICA ACTA-BIOENERGETICS 2009; 1787:835-40. [PMID: 19426703 DOI: 10.1016/j.bbabio.2009.04.015] [Citation(s) in RCA: 101] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2008] [Revised: 04/28/2009] [Accepted: 04/29/2009] [Indexed: 11/15/2022]
Abstract
Once a virtually unknown nitrogen oxide, nitroxyl (HNO) has emerged as a potential pharmacological agent. Recent advances in the understanding of the chemistry of HNO has led to the an understanding of HNO biochemistry which is vastly different from the known chemistry and biochemistry of nitric oxide (NO), the one-electron oxidation product of HNO. The cardiovascular roles of NO have been extensively studied, as NO is a key modulator of vascular tone and is involved in a number of vascular related pathologies. HNO displays unique cardiovascular properties and has been shown to have positive lusitropic and ionotropic effects in failing hearts without a chronotropic effect. Additionally, HNO causes a release of CGRP and modulates calcium channels such as ryanodine receptors. HNO has shown beneficial effects in ischemia reperfusion injury, as HNO treatment before ischemia-reperfusion reduces infarct size. In addition to the cardiovascular effects observed, HNO has shown initial promise in the realm of cancer therapy. HNO has been demonstrated to inhibit GAPDH, a key glycolytic enzyme. Due to the Warburg effect, inhibiting glycolysis is an attractive target for inhibiting tumor proliferation. Indeed, HNO has recently been shown to inhibit tumor proliferation in mouse xenografts. Additionally, HNO inhibits tumor angiogenesis and induces cancer cell apoptosis. The effects seen with HNO donors are quite different from NO donors and in some cases are opposite. The chemical nature of HNO explains how HNO and NO, although closely chemically related, act so differently in biochemical systems. This also gives insight into the potential molecular motifs that may be reactive towards HNO and opens up a novel field of pharmacological development.
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Affiliation(s)
- Christopher H Switzer
- Radiation Biology Branch, National Cancer Institute, National Institutes of Health, Building 10, Room B3-B35, Bethesda, MD 20892, USA
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