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Cao H, Xiong SF, Dong LL, Dai ZT. Study on the Mechanism of Lipid Peroxidation Induced by Carbonate Radicals. Molecules 2024; 29:1125. [PMID: 38474637 DOI: 10.3390/molecules29051125] [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: 01/30/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
Based on the reported research, hydroxyl radicals can be rapidly transformed into carbonate radicals in the carbonate-bicarbonate buffering system in vivo. Many of the processes considered to be initiated by hydroxyl radicals may be caused by carbonate radicals, which indicates that lipid peroxidation initiated by hydroxyl radicals can also be caused by carbonate radicals. To date, theoretical research on reactions of hydrogen abstraction from and radical addition to polyunsaturated fatty acids (PUFAs) of carbonate radicals has not been carried out systematically. This paper employs (3Z,6Z)-nona-3,6-diene (NDE) as a model for polyunsaturated fatty acids (PUFAs). Density functional theory (DFT) with the CAM-B3LYP method at the 6-311+g(d,p) level was used to calculate the differences in reactivity of carbonate radicals abstracting hydrogen from different positions of NDE and their addition to the double bonds of NDE under lipid solvent conditions with a dielectric constant of 4.0 (CPCM model). Grimme's empirical dispersion correction was taken into account through the D3 scheme. The energy barrier, reaction rate constants, internal energy, enthalpy and Gibbs free energy changes in these reactions were calculated With zero-point vibrational energy (ZPVE) corrections. The results indicated that carbonate radicals initiate lipid peroxidation primarily through hydrogen abstraction from diallyl carbon atoms. The reaction of hydrogen abstraction from diallyl carbon atoms exhibits the highest reaction rate, with a reaction rate constant approximately 43-fold greater than the second-ranked hydrogen abstraction from allyl carbon atoms. This process has the lowest energy barrier, internal energy, enthalpy, and Gibbs free energy changes, indicating that it is also the most spontaneous process.
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Affiliation(s)
- Heng Cao
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Sheng-Feng Xiong
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Li-Long Dong
- Department of Pharmaceutical Analysis, School of Pharmacy, Hebei Medical University, Shijiazhuang 050031, China
| | - Zhou-Tong Dai
- Department of Gynecological Oncology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- National Clinical Research Center for Obstetrics and Gynecology, Cancer Biology Research Center (Key Laboratory of the Ministry of Education), Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Olasz B, Fiser B, Szőri M, Viskolcz B, Owen MC. Computational Elucidation of the Solvent-Dependent Addition of 4-Hydroxy-2-nonenal (HNE) to Cysteine and Cysteinate Residues. J Org Chem 2022; 87:12909-12920. [PMID: 36148484 DOI: 10.1021/acs.joc.2c01487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The lipid peroxidation end product, 4-hydroxy-2-nonenal (HNE), is a secondary mediator of oxidative stress due to its strong ability to form adducts to the side chains of lysine, histidine, and cysteine residues (Cys) at increasing reactivities. This reaction can take place in various cellular environments and may be dependent on solvent. Moreover, approximately 10% of cysteine residues within the cells exist as the negatively charged cysteinate, which may also have a distinct reactivity toward HNE. In this study, quantum chemical calculations are used to investigate the reactivity of HNE toward Cys and cysteinate in three distinct solvent environments to mimic the aqueous, polar, and hydrophobic regions within the cell. Water enhances the reactivity of HNE to cysteine compared to that of the polar and hydrophobic solvents, and the reactivity of HNE is further augmented when Cys is first ionized to cysteinate. This is also confirmed by the transition state rate constant calculations. This study reveals the role of solvent polarity in these reactions and how cysteinate can account for the seemingly high reactivity of HNE toward Cys compared to other amino acid residues and demonstrates how a strong nucleophile can enhance the reactivity of an antioxidant analogue of the Cys residue.
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Affiliation(s)
- Balázs Olasz
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Béla Fiser
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Ferenc Rákóczi II Transcarpathian Hungarian College of Higher Education, UA-90200 Beregszász, Transcarpathia, Ukraine
| | - Milán Szőri
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Béla Viskolcz
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
| | - Michael C Owen
- Institute of Chemistry, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary.,Higher Education and Industrial Cooperation Centre, University of Miskolc, Miskolc-Egyetemváros, H-3515 Miskolc, Hungary
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Faragó EP, Szőri M, Owen MC, Fittschen C, Viskolcz B. Critical evaluation of the potential energy surface of the CH3 + HO2reaction system. J Chem Phys 2015; 142:054308. [DOI: 10.1063/1.4907014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- E. P. Faragó
- Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged 6725, Hungary
- PhysicoChimie des Processus de Combustion et de l’Atmosphère (PC2A) UMR 8522 CNRS/Lille 1, Université Lille 1, Cité Scientifique, 59655 Villeneuve d’Ascq Cedex, France
| | - M. Szőri
- Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged 6725, Hungary
- Drug Discovery Research Center, H-6725 Szeged, Hungary
| | - M. C. Owen
- Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged 6725, Hungary
- Drug Discovery Research Center, H-6725 Szeged, Hungary
- Institute of Complex Systems: Structural Biochemistry, Forschungszentrum Jülich, 42525 Jülich, Germany
| | - C. Fittschen
- PhysicoChimie des Processus de Combustion et de l’Atmosphère (PC2A) UMR 8522 CNRS/Lille 1, Université Lille 1, Cité Scientifique, 59655 Villeneuve d’Ascq Cedex, France
| | - B. Viskolcz
- Department of Chemical Informatics, Faculty of Education, University of Szeged, Boldogasszony sgt. 6, Szeged 6725, Hungary
- Drug Discovery Research Center, H-6725 Szeged, Hungary
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Tzeng YZ, Hu CH. Radical-induced Cis-Trans isomerization of fatty acids: a theoretical study. J Phys Chem A 2014; 118:4554-64. [PMID: 24911614 DOI: 10.1021/jp502434t] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Trans fatty acids (TFAs) create deleterious effects; thus their existence in humans is a great health concern. TFAs can be obtained through diet, or they can be formed endogenously by radical-induced cis to trans isomerization. The mechanism of isomerization of fatty acid catalyzed by radicals including nitrogen dioxide (NO2(•)), thiyl (RS(•)), and peroxide (ROO(•)) radicals were investigated using density functional theory. With linoleic acid, a fatty acid consisting of two homoconjugated C═C bonds, we found that the radical addition mechanism is more favorable than the hydrogen abstraction mechanism. For all investigated radicals, the isomerization catalyzed by RS(•) radical involves the smallest reaction barrier. We found that NO2(•) reactions through the N-terminus are more favorable than reactions through the O-terminus. The reaction barriers for NO2(•) catalyzed isomerizations were found to be lowered to a larger extent in polar solvent. β-carotene and lycopene were shown to protect fatty acids from isomerization by intercepting the isomerization-causing radicals.
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Affiliation(s)
- Yu-Zan Tzeng
- Department of Chemistry, National Changhua University of Education , Changhua 50058, Taiwan
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Han L, Li L, Li B, Zhao D, Li Y, Xu Z, Liu G. Hydroxyl radical induced by lipid in Maillard reaction model system promotes diet-derived N(ε)-carboxymethyllysine formation. Food Chem Toxicol 2013; 60:536-41. [PMID: 23959106 DOI: 10.1016/j.fct.2013.07.081] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/20/2013] [Accepted: 07/22/2013] [Indexed: 10/26/2022]
Abstract
N(ε)-carboxymethyllysine (CML) is commonly found in food, and is considered as a potential hazard to human health. However, the effect of lipids on CML formation in Maillard reaction is still not clarified. In this study, the content of diet-derived CML and its key intermediates, epsilon-fructoselysine (FL) and glyoxal (GO), is determined with high performance liquid chromatography mass spectrum (HPLC-MS) in model system containing lipid compounds. According to the results, hydroxyl radical (OH) induced by Fenton reagent can promote the three pathways of CML formation. Moreover, in the Maillard reaction system, linoleic acid (Lin), oleic acid (Ole) and glycerol trioleate (Tri) can induce more OH·, which promotes CML formation. Their level of promoting CML formation is in the order of Ole>Lin>Tri. On the contrary, glycerol (Gly) can scavenge OH·, which inhibit the CML formation. Finally, it is proved that FL content and GO content decreases with heating time in model system, while CML content increases with heating time. Thus, it is concluded that in the Maillard reaction system lipids can induce more OH·, which promotes the conversion from FL and GO to CML. Our research may contribute to the development of inhibitory methods for diet-derived CML by scavenging OH·.
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Affiliation(s)
- Lipeng Han
- College of Light Industry and Food Sciences, South China University of Technology, 381# Wushan Road, Tianhe District, Guangzhou 510640, China; School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
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