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Rodriguez-Duarte J, Dapueto R, Galliussi G, Turell L, Kamaid A, Khoo NKH, Schopfer FJ, Freeman BA, Escande C, Batthyány C, Ferrer-Sueta G, López GV. Electrophilic nitroalkene-tocopherol derivatives: synthesis, physicochemical characterization and evaluation of anti-inflammatory signaling responses. Sci Rep 2018; 8:12784. [PMID: 30143727 PMCID: PMC6109136 DOI: 10.1038/s41598-018-31218-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Accepted: 08/14/2018] [Indexed: 12/26/2022] Open
Abstract
Inflammation plays a major role in the onset and development of chronic non-communicable diseases like obesity, cardiovascular diseases and cancer. Combined, these diseases represent the most common causes of death worldwide, thus development of novel pharmacological approaches is crucial. Electrophilic nitroalkenes derived from fatty acids are formed endogenously and exert anti-inflammatory actions by the modification of proteins involved in inflammation signaling cascades. We have developed novel nitroalkenes derived from α-tocopherol aiming to increase its salutary actions by adding anti-inflammatory properties to a well-known nutraceutical. We synthesized and characterized an α-tocopherol-nitroalkene (NATOH) and two hydrosoluble analogues derived from Trolox (NATxME and NATx0). We analyzed the kinetics of the Michael addition reaction of these compounds with thiols in micellar systems aiming to understand the effect of hydrophobic partition on the reactivity of nitroalkenes. We studied NATxME in vitro showing it exerts non-conventional anti-inflammatory responses by inducing Nrf2-Keap1-dependent gene expression and inhibiting the secretion of NF-κB dependent pro-inflammatory cytokines. NATxME was also effective in vivo, inhibiting neutrophil recruitment in a zebrafish model of inflammation. This work lays the foundation for the rational design of a new therapeutic strategy for the prevention and treatment of metabolic and inflammation-related diseases.
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Affiliation(s)
- Jorge Rodriguez-Duarte
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur de Montevideo, Montevideo, Uruguay.,Departmento de Química Orgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay.,INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Rosina Dapueto
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur de Montevideo, Montevideo, Uruguay.,Departmento de Química Orgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay.,INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Germán Galliussi
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur de Montevideo, Montevideo, Uruguay.,INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Lucía Turell
- Laboratorio de Enzimología, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay
| | - Andrés Kamaid
- INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay.,Analytical Biochemistry and Proteomics Unit, Montevideo, Uruguay
| | - Nicholas K H Khoo
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Francisco J Schopfer
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Bruce A Freeman
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Carlos Escande
- INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay.,Laboratory of Metabolic Diseases and Aging, Institut Pasteur de Montevideo, Montevideo, Uruguay
| | - Carlos Batthyány
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur de Montevideo, Montevideo, Uruguay. .,INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay. .,Analytical Biochemistry and Proteomics Unit, Montevideo, Uruguay.
| | - Gerardo Ferrer-Sueta
- Laboratorio de Fisicoquímica Biológica, Facultad de Ciencias, Universidad de la República, Montevideo, Uruguay.
| | - Gloria V López
- Laboratory of Vascular Biology and Drug Development, Institut Pasteur de Montevideo, Montevideo, Uruguay. .,Departmento de Química Orgánica, Facultad de Química, Universidad de la República, Montevideo, Uruguay. .,INDICYO Program, Institut Pasteur de Montevideo, Montevideo, Uruguay.
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Browne EC, Langford SJ, Abbott BM. Synthesis and effects of conjugated tocopherol analogues on peptide nucleic acid hybridisation. Org Biomol Chem 2013; 11:6744-50. [PMID: 23995261 DOI: 10.1039/c3ob41613e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To the N-terminus of a nonamer peptide nucleic acid sequence, H-GCACGACTT-NH2, was attached a number of lipophilic conjugate molecules including three synthetic tocopherol (vitamin E) analogues. Studies were then undertaken with complementary PNA and DNA sequences to explore the effects of the conjugates using the techniques of UV monitored melting curves and isothermal calorimetry. Duplex formation was observed when the benzopyran group of vitamin E was conjugated. However, in the presence of the phytyl chain of vitamin E, binding was found to be temperature dependent.
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Affiliation(s)
- Elisse C Browne
- Department of Chemistry, La Trobe University, Bundoora, Australia.
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