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Morlière P, Hug GL, Patterson LK, Mazière JC, Ausseil J, Dupas JL, Ducroix JP, Santus R, Filipe P. Chemistry of free radicals produced by oxidation of endogenous α-aminoketones. A study of 5-aminolevulinic acid and α-aminoacetone by fast kinetics spectroscopy. Biochim Biophys Acta Gen Subj 2014; 1840:3190-7. [PMID: 25018004 DOI: 10.1016/j.bbagen.2014.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2014] [Revised: 06/24/2014] [Accepted: 07/02/2014] [Indexed: 10/25/2022]
Abstract
BACKGROUND Excess 5-aminolevulinic acid (ALA) and α-aminoacetone (AA) are implicated in ketosis, porphyrinpathies and diabetes. Pathologic manifestations involve O₂⁻, H₂O₂, OH, enoyl radicals (ALA and AA) and their oxidation end products. METHODS To characterize enoyl radicals resulting from reaction of OH radicals with ALA and AA, micromolar OH concentrations were produced by pulse radiolysis of ALA and AA in aqueous solutions. RESULTS ALA and AA react with OH at k=1.5 × 10⁹ M⁻¹s⁻¹. At pH7.4, the ALA absorbance spectrum has a maximum at 330 nm (ε=750 M⁻¹cm⁻¹). This band appears as a shoulder at pH8.3 where two ALA species are present: (NH3)⁺-CH₂-CO-CH₂-CH₂-COO⁻ and NH₂-CH₂-CO-CH₂-CH₂-COO⁻ (pKa=8.3). At pH8.3, ALA reacts with oxygen (k=1.4 × 10⁸ M⁻¹s⁻¹) but not with O₂⁻. At pH8.3, AA oxidation produces two AA species characterized by an absorbance spectrum with maxima at 330 and 450 nm. ALA and AA are repaired by antioxidants (quercetin (QH), catechin, trolox, ascorbate) which are semi-oxidized (k>10(8)M⁻¹s⁻¹). QH bound to HSA or to apoferritin and ferritin repairs ALA and AA. In O₂-saturated apoferritin solutions, Q, O₂⁻, AA and reaction product(s) react with QH. CONCLUSIONS The optical absorption properties and the time evolution of ALA and AA were established for the first time. These radicals and their reaction products may be neutralized by antioxidants free in solution or bound to proteins. GENERAL SIGNIFICANCE Adjuvant antioxidant administration may be of interest in pathologies related to excess ALA or AA production.
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Affiliation(s)
- P Morlière
- INSERM, U1088, 80054 Amiens, France; CHU Amiens, Pôle Biologie, Pharmacie et Santé des Populations, Centre de Biologie Humaine, Laboratoire de Biochimie, 80054 Amiens, France; Université de Picardie Jules Verne, UFR de Pharmacie, 80036 Amiens, France.
| | - G L Hug
- University of Notre Dame, Radiation Laboratory, Notre Dame, IN 46556, USA
| | - L K Patterson
- CHU Amiens, Pôle Biologie, Pharmacie et Santé des Populations, Centre de Biologie Humaine, Laboratoire de Biochimie, 80054 Amiens, France; University of Notre Dame, Radiation Laboratory, Notre Dame, IN 46556, USA
| | - J-C Mazière
- INSERM, U1088, 80054 Amiens, France; CHU Amiens, Pôle Biologie, Pharmacie et Santé des Populations, Centre de Biologie Humaine, Laboratoire de Biochimie, 80054 Amiens, France; Université de Picardie Jules Verne, UFR de Médecine, 80036 Amiens, France
| | - J Ausseil
- INSERM, U1088, 80054 Amiens, France; CHU Amiens, Pôle Biologie, Pharmacie et Santé des Populations, Centre de Biologie Humaine, Laboratoire de Biochimie, 80054 Amiens, France; Université de Picardie Jules Verne, UFR de Médecine, 80036 Amiens, France
| | - J-L Dupas
- Université de Picardie Jules Verne, UFR de Médecine, 80036 Amiens, France; CHU Amiens, Service d'Hépato-Gastroentérologie, 80054 Amiens, France
| | - J-P Ducroix
- Université de Picardie Jules Verne, UFR de Médecine, 80036 Amiens, France; CHU Amiens, Service de Médecine Interne et Maladies Systémiques, 80054 Amiens, France
| | - R Santus
- CHU Amiens, Pôle Biologie, Pharmacie et Santé des Populations, Centre de Biologie Humaine, Laboratoire de Biochimie, 80054 Amiens, France; Muséum National d'Histoire Naturelle, Département RDDM, 75231 Paris, France
| | - P Filipe
- Hospital de Santa Maria, Faculdade de Medicina de Lisboa, Clínica Dermatologica Universitaria and Unidade de Investigação em Dermatologia, Instituto de Medicina Molecular, 1699 Lisboa Codex, Portugal
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Silva AMS, Filipe P, Seixas RSGR, Pinto DCGA, Patterson LK, Hug GL, Cavaleiro JAS, Mazière JC, Santus R, Morlière P. One-Electron Reduction of Superoxide Radical-Anions by 3-Alkylpolyhydroxyflavones in Micelles. Effect of Antioxidant Alkyl Chain Length on Micellar Structure and Reactivity. J Phys Chem B 2008; 112:11456-61. [DOI: 10.1021/jp805889g] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Artur M. S. Silva
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Paulo Filipe
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Raquel S. G. R. Seixas
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Diana C. G. A. Pinto
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Larry K. Patterson
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Gordon L. Hug
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - José A. S. Cavaleiro
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Jean-Claude Mazière
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - René Santus
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
| | - Patrice Morlière
- Department of Chemistry and OOPNA, University of Aveiro, 3810-193 Aveiro, Portugal, Faculdade de Medicina de Lisboa, Clínica de Dermatologia, 1699 Lisboa, Portugal, Radiation Laboratory, University of Notre Dame, Notre Dame, Indiana 46556, INSERM, ERI 12, 80054 Amiens, France, Faculté de Médecine et de Pharmacie, Université de Picardie Jules Verne, 80036 Amiens, France, Laboratoire de Biochimie, CHU Amiens Nord, 80054 Amiens, France, INSERM, U 697, 75475 Paris, France, and Département RDDM, Muséum
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