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Ma Q, Song Z, Hu W, Li B, Zhang M, Ding C, Chen H. Effects of discharge plasma on seed germination and volatile compounds content of Agropyron Mongolicum. Free Radic Biol Med 2024; 222:467-477. [PMID: 38969272 DOI: 10.1016/j.freeradbiomed.2024.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Revised: 06/19/2024] [Accepted: 07/01/2024] [Indexed: 07/07/2024]
Abstract
To investigate the effects of discharge plasma on Agropyron mongolicum seeds, various treatments including direct exposure to discharge plasma, combined treatment with discharge plasma and plasma-activated water (PAW) were applied to the seeds. The changes in germination rate, MDA content, and volatile compound levels of Agropyron mongolicum seeds after different treatments were examined. The results showed that the direct effect of plasma had no significant effect on the MDA content or germination rate of Agropyron mongolicum seeds due to the limited penetration depth. However, the combined effect of plasma and activated water could cause active nitrogen and oxygen particles to enter the seeds and cause oxidative stress damage. After 18 h of combined treatment, the MDA content increased significantly, and the germination rate decreased to below the semilethal dose, which was 33.44 %. After plasma treatment, 55 volatile compounds, mainly alcohols, aldehydes and ketones, were identified from the seeds of Agropyron mongolicum. Due to the oxidation and modification of the plasma, the content of most aldehydes increased with increasing reaction time. After screening, 13 volatile organic compounds could be used as potential markers to distinguish between different treatment methods. These results reveal the mechanism underlying the biological effects of plasma treatment on Agropyron mongolicum seeds.
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Affiliation(s)
- Qingjie Ma
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Zhiqing Song
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China; College of Electric Power, Inner Mongolia University of Technology, Hohhot, 010080, China.
| | - Wenhao Hu
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Bufan Li
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China
| | - Mingjie Zhang
- College of Electric Power, Inner Mongolia University of Technology, Hohhot, 010080, China
| | - Changjiang Ding
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China; College of Electric Power, Inner Mongolia University of Technology, Hohhot, 010080, China
| | - Hao Chen
- College of Science, Inner Mongolia University of Technology, Hohhot, 010051, China; Application Laboratory for Discharge Plasma & Functional Materials, Inner Mongolia University of Technology, Hohhot, 010051, China
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Faria RL, Prado FM, Junqueira HC, Fabiano KC, Diniz LR, Baptista MS, Di Mascio P, Miyamoto S. Plasmalogen oxidation induces the generation of excited molecules and electrophilic lipid species. PNAS NEXUS 2024; 3:pgae216. [PMID: 38894877 PMCID: PMC11184980 DOI: 10.1093/pnasnexus/pgae216] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Accepted: 05/24/2024] [Indexed: 06/21/2024]
Abstract
Plasmalogens are glycerophospholipids with a vinyl ether linkage at the sn-1 position of the glycerol backbone. Despite being suggested as antioxidants due to the high reactivity of their vinyl ether groups with reactive oxygen species, our study reveals the generation of subsequent reactive oxygen and electrophilic lipid species from oxidized plasmalogen intermediates. By conducting a comprehensive analysis of the oxidation products by liquid chromatography coupled to high-resolution mass spectrometry (LC-HRMS), we demonstrate that singlet molecular oxygen [O2 (1Δg)] reacts with the vinyl ether bond, producing hydroperoxyacetal as a major primary product (97%) together with minor quantities of dioxetane (3%). Furthermore, we show that these primary oxidized intermediates are capable of further generating reactive species including excited triplet carbonyls and O2 (1Δg) as well as electrophilic phospholipid and fatty aldehyde species as secondary reaction products. The generation of excited triplet carbonyls from dioxetane thermal decomposition was confirmed by light emission measurements in the visible region using dibromoanthracene as a triplet enhancer. Moreover, O2 (1Δg) generation from dioxetane and hydroperoxyacetal was evidenced by detection of near-infrared light emission at 1,270 nm and chemical trapping experiments. Additionally, we have thoroughly characterized alpha-beta unsaturated phospholipid and fatty aldehydes by LC-HRMS analysis using two probes that specifically react with aldehydes and alpha-beta unsaturated carbonyls. Overall, our findings demonstrate the generation of excited molecules and electrophilic lipid species from oxidized plasmalogen species unveiling the potential prooxidant nature of plasmalogen-oxidized products.
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Affiliation(s)
- Rodrigo L Faria
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Fernanda M Prado
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Helena C Junqueira
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Karen C Fabiano
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Larissa R Diniz
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Mauricio S Baptista
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
| | - Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, SP 05508-000, Brazil
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Terao J. Revisiting carotenoids as dietary antioxidants for human health and disease prevention. Food Funct 2023; 14:7799-7824. [PMID: 37593767 DOI: 10.1039/d3fo02330c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Humans are unique indiscriminate carotenoid accumulators, so the human body accumulates a wide range of dietary carotenoids of different types and to varying concentrations. Carotenoids were once recognized as physiological antioxidants because of their ability to quench singlet molecular oxygen (1O2). In the 1990s, large-scale intervention studies failed to demonstrate that supplementary β-carotene intake reduces the incidence of lung cancer, although its antioxidant activity was supposed to contribute to the prevention of oxidative stress-induced carcinogenesis. Nevertheless, the antioxidant activity of carotenoids has attracted renewed attention as the pathophysiological role of 1O2 has emerged, and as the ability of dietary carotenoids to induce antioxidant enzymes has been revealed. This review focuses on six major carotenoids from fruit and vegetables and revisits their physiological functions as biological antioxidants from the standpoint of health promotion and disease prevention. β-Carotene 9',10'-oxygenase-derived oxidative metabolites trigger increases in the activities of antioxidant enzymes. Lutein and zeaxanthin selectively accumulate in human macular cells to protect against light-induced macular impairment by acting as antioxidants. Lycopene accumulates exclusively and to high concentrations in the testis, where its antioxidant activity may help to eliminate oxidative damage. Dietary carotenoids appear to exert their antioxidant activity in photo-irradiated skin after their persistent deposition in the skin. An acceptable level of dietary carotenoids for disease prevention should be established because they can have deleterious effects as prooxidants if they accumulate to excess levels. Finally, it is expected that the reason why humans are indiscriminate carotenoid accumulators will be understood soon.
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Affiliation(s)
- Junji Terao
- Faculty of Medicine, Tokushima University, 3-18-15 Kuramoto-cho, Tokushima 770-8503, Japan.
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4
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Valgimigli L. Lipid Peroxidation and Antioxidant Protection. Biomolecules 2023; 13:1291. [PMID: 37759691 PMCID: PMC10526874 DOI: 10.3390/biom13091291] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
Lipid peroxidation (LP) is the most important type of oxidative-radical damage in biological systems, owing to its interplay with ferroptosis and to its role in secondary damage to other biomolecules, such as proteins. The chemistry of LP and its biological consequences are reviewed with focus on the kinetics of the various processes, which helps understand the mechanisms and efficacy of antioxidant strategies. The main types of antioxidants are discussed in terms of structure-activity rationalization, with focus on mechanism and kinetics, as well as on their potential role in modulating ferroptosis. Phenols, pyri(mi)dinols, antioxidants based on heavy chalcogens (Se and Te), diarylamines, ascorbate and others are addressed, along with the latest unconventional antioxidant strategies based on the double-sided role of the superoxide/hydroperoxyl radical system.
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Affiliation(s)
- Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Piero Gobetti 85, 40129 Bologna, Italy
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Liu Y, Dong W, Jiang X, Xu J, Yang K, Zhu L, Lin D. Efficient Degradation of Intracellular Antibiotic Resistance Genes by Photosensitized Erythrosine-Produced 1O 2. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:12105-12116. [PMID: 37531556 DOI: 10.1021/acs.est.3c03103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/04/2023]
Abstract
Intracellular antibiotic resistance genes (iARGs) constitute the important part of wastewater ARGs and need to be efficiently removed. However, due to the dual protection of intracellular DNA by bacterial membranes and the cytoplasm, present disinfection technologies are largely inefficient in iARG degradation. Herein, we for the first time found that erythrosine (ERY, an edible dye) could efficiently degrade iARGs by producing abundant 1O2 under visible light. Seven log antibiotic-resistant bacteria were inactivated within only 1.5 min, and 6 log iARGs were completely degraded within 40 min by photosensitized ERY (5.0 mg/L). A linear relationship was established between ARG degradation rate constants and 1O2 concentrations in the ERY photosensitizing system. Surprisingly, a 3.2-fold faster degradation of iARGs than extracellular ARGs was observed, which was attributed to the unique indirect oxidation of iARGs induced by 1O2. Furthermore, ERY photosensitizing was effective for iARG degradation in real wastewater and other photosensitizers (including Rose Bengal and Phloxine B) of high 1O2 yields could also achieve efficient iARG degradation. The findings increase our knowledge of the iARG degradation preference by 1O2 and provide a new strategy of developing technologies with high 1O2 yield, like ERY photosensitizing, for efficient iARG removal.
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Affiliation(s)
- Yi Liu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Wenhua Dong
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Xunheng Jiang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Jiang Xu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kun Yang
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Lizhong Zhu
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Ecological Civilization Academy, Anji 313300, China
| | - Daohui Lin
- Zhejiang Provincial Key Laboratory of Organic Pollution Process and Control, Department of Environmental Science, Zhejiang University, Hangzhou, Zhejiang 310058, China
- Zhejiang Ecological Civilization Academy, Anji 313300, China
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6
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Fujii J, Soma Y, Matsuda Y. Biological Action of Singlet Molecular Oxygen from the Standpoint of Cell Signaling, Injury and Death. Molecules 2023; 28:molecules28104085. [PMID: 37241826 DOI: 10.3390/molecules28104085] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/11/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
Energy transfer to ground state triplet molecular oxygen results in the generation of singlet molecular oxygen (1O2), which has potent oxidizing ability. Irradiation of light, notably ultraviolet A, to a photosensitizing molecule results in the generation of 1O2, which is thought to play a role in causing skin damage and aging. It should also be noted that 1O2 is a dominant tumoricidal component that is generated during the photodynamic therapy (PDT). While type II photodynamic action generates not only 1O2 but also other reactive species, endoperoxides release pure 1O2 upon mild exposure to heat and, hence, are considered to be beneficial compounds for research purposes. Concerning target molecules, 1O2 preferentially reacts with unsaturated fatty acids to produce lipid peroxidation. Enzymes that contain a reactive cysteine group at the catalytic center are vulnerable to 1O2 exposure. Guanine base in nucleic acids is also susceptible to oxidative modification, and cells carrying DNA with oxidized guanine units may experience mutations. Since 1O2 is produced in various physiological reactions in addition to photodynamic reactions, overcoming technical challenges related to its detection and methods used for its generation would allow its potential functions in biological systems to be better understood.
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Affiliation(s)
- Junichi Fujii
- Department of Biochemistry and Molecular Biology, Graduate School of Medical Science, Yamagata University, Yamagata 990-9585, Japan
| | - Yuya Soma
- Graduate School of Nursing, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
| | - Yumi Matsuda
- Graduate School of Nursing, Yamagata University Faculty of Medicine, Yamagata 990-9585, Japan
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Murotomi K, Umeno A, Shichiri M, Tanito M, Yoshida Y. Significance of Singlet Oxygen Molecule in Pathologies. Int J Mol Sci 2023; 24:ijms24032739. [PMID: 36769060 PMCID: PMC9917472 DOI: 10.3390/ijms24032739] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2022] [Revised: 01/22/2023] [Accepted: 01/26/2023] [Indexed: 02/04/2023] Open
Abstract
Reactive oxygen species, including singlet oxygen, play an important role in the onset and progression of disease, as well as in aging. Singlet oxygen can be formed non-enzymatically by chemical, photochemical, and electron transfer reactions, or as a byproduct of endogenous enzymatic reactions in phagocytosis during inflammation. The imbalance of antioxidant enzymes and antioxidant networks with the generation of singlet oxygen increases oxidative stress, resulting in the undesirable oxidation and modification of biomolecules, such as proteins, DNA, and lipids. This review describes the molecular mechanisms of singlet oxygen production in vivo and methods for the evaluation of damage induced by singlet oxygen. The involvement of singlet oxygen in the pathogenesis of skin and eye diseases is also discussed from the biomolecular perspective. We also present our findings on lipid oxidation products derived from singlet oxygen-mediated oxidation in glaucoma, early diabetes patients, and a mouse model of bronchial asthma. Even in these diseases, oxidation products due to singlet oxygen have not been measured clinically. This review discusses their potential as biomarkers for diagnosis. Recent developments in singlet oxygen scavengers such as carotenoids, which can be utilized to prevent the onset and progression of disease, are also described.
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Affiliation(s)
- Kazutoshi Murotomi
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8566, Japan
| | - Aya Umeno
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan
| | - Mototada Shichiri
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda 563-8577, Japan
- Correspondence: ; Tel.: +81-72-751-8234
| | - Masaki Tanito
- Department of Ophthalmology, Shimane University Faculty of Medicine, Izumo 693-8501, Japan
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8
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Analysis of Oxidized 1-Palmitoyl-2-Arachidonoyl-Sn-Glycero-3 Phosphocholine Products in Uremic Patients by LC-ESI/MS. SEPARATIONS 2022. [DOI: 10.3390/separations9080192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A simple liquid chromatography-electrospray ionization-mass spectrometry (LC-ESI/MS) method has been developed to analyze oxidized 1-palmitoyl-2-arachidonoyl-sn-glycero-3-phosphocholine (ox-PAPC) products on the lipoproteins of uremic patients. The native PAPC standard was in vitro oxidized by the Fenton reaction, and the ox-PAPC products were analyzed by LC- ESI/MS. For LC, a C8 column and a mobile phase (acetonitrile-isopropanol containing 0.1% formic acid (70:30, v/v)) were selected. For ESI/MS, the optimal conditions included sheath gas pressure (10 psi), capillary temperature (270 °C), and injection time (1000 ms). The identification of ox-PAPC products on human lipoproteins was based on the extracted ion chromatograms (EICs) and the ESI-MS spectra of the in vitro oxidation products of PAPC standard. The EICs and ESI-MS spectra showed good repeatability and sensitivity. A total of 21 ox-PAPC products was determined. Linear analysis has been performed for the phospholipid standard, 1, 2-Di-O-hexadecyl-sn-glycero-3-phosphocholine (PC(O-16:0/O-16:0)). The linear range was 5.0–100.0 µg/mL, and the coefficient of determination (R2) was 0.989. The concentration limit of detection (LOD) was 1.50 µg/mL, and the concentration limit of quantitation (LOQ) was 4.54 µg/mL. The selected 21 ox-PAPC products have been identified and quantified in very low-density lipoprotein (VLDL), low-density lipoprotein (LDL), and high-density lipoprotein (HDL) of uremic and healthy subjects. Interestingly, the results showed that the levels of 18 products in VLDL, one product in LDL, and 19 products in HDL were significantly higher for uremic patients than healthy controls. This simple LC-ESI/MS method might accelerate the searching for biomarkers of uremia in the future.
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9
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Snell JA, Jandova J, Wondrak GT. Hypochlorous Acid: From Innate Immune Factor and Environmental Toxicant to Chemopreventive Agent Targeting Solar UV-Induced Skin Cancer. Front Oncol 2022; 12:887220. [PMID: 35574306 PMCID: PMC9106365 DOI: 10.3389/fonc.2022.887220] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Accepted: 03/31/2022] [Indexed: 12/15/2022] Open
Abstract
A multitude of extrinsic environmental factors (referred to in their entirety as the 'skin exposome') impact structure and function of skin and its corresponding cellular components. The complex (i.e. additive, antagonistic, or synergistic) interactions between multiple extrinsic (exposome) and intrinsic (biological) factors are important determinants of skin health outcomes. Here, we review the role of hypochlorous acid (HOCl) as an emerging component of the skin exposome serving molecular functions as an innate immune factor, environmental toxicant, and topical chemopreventive agent targeting solar UV-induced skin cancer. HOCl [and its corresponding anion (OCl-; hypochlorite)], a weak halogen-based acid and powerful oxidant, serves two seemingly unrelated molecular roles: (i) as an innate immune factor [acting as a myeloperoxidase (MPO)-derived microbicidal factor] and (ii) as a chemical disinfectant used in freshwater processing on a global scale, both in the context of drinking water safety and recreational freshwater use. Physicochemical properties (including redox potential and photon absorptivity) determine chemical reactivity of HOCl towards select biochemical targets [i.e. proteins (e.g. IKK, GRP78, HSA, Keap1/NRF2), lipids, and nucleic acids], essential to its role in innate immunity, antimicrobial disinfection, and therapeutic anti-inflammatory use. Recent studies have explored the interaction between solar UV and HOCl-related environmental co-exposures identifying a heretofore unrecognized photo-chemopreventive activity of topical HOCl and chlorination stress that blocks tumorigenic inflammatory progression in UV-induced high-risk SKH-1 mouse skin, a finding with potential implications for the prevention of human nonmelanoma skin photocarcinogenesis.
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Affiliation(s)
| | | | - Georg T. Wondrak
- Department of Pharmacology and Toxicology, R.K. Coit College of Pharmacy & UA Cancer Center, University of Arizona, Tucson, AZ, United States
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Sun Q, Wang Z, Liu B, He F, Gai S, Yang P, Yang D, Li C, Lin J. Recent advances on endogenous/exogenous stimuli-triggered nanoplatforms for enhanced chemodynamic therapy. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2021.214267] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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11
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Zhang X, Ma Y, Wan J, Yuan J, Wang D, Wang W, Sun X, Meng Q. Biomimetic Nanomaterials Triggered Ferroptosis for Cancer Theranostics. Front Chem 2021; 9:768248. [PMID: 34869212 PMCID: PMC8635197 DOI: 10.3389/fchem.2021.768248] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 10/04/2021] [Indexed: 01/17/2023] Open
Abstract
Ferroptosis, as a recently discovered non-apoptotic programmed cell death with an iron-dependent form, has attracted great attention in the field of cancer nanomedicine. However, many ferroptosis-related nano-inducers encountered unexpected limitations such as immune exposure, low circulation time, and ineffective tumor targeting. Biomimetic nanomaterials possess some unique physicochemical properties which can achieve immune escape and effective tumor targeting. Especially, certain components of biomimetic nanomaterials can further enhance ferroptosis. Therefore, this review will provide a comprehensive overview on recent developments of biomimetic nanomaterials in ferroptosis-related cancer nanomedicine. First, the definition and character of ferroptosis and its current applications associated with chemotherapy, radiotherapy, and immunotherapy for enhancing cancer theranostics were briefly discussed. Subsequently, the advantages and limitations of some representative biomimetic nanomedicines, including biomembranes, proteins, amino acids, polyunsaturated fatty acids, and biomineralization-based ferroptosis nano-inducers, were further spotlighted. This review would therefore help the spectrum of advanced and novice researchers who are interested in this area to quickly zoom in the essential information and glean some provoking ideas to advance this subfield in cancer nanomedicine.
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Affiliation(s)
- Xinyu Zhang
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
| | - Yanling Ma
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore, Singapore
| | - Jipeng Wan
- School of Chemistry and Pharmaceutical Engineering, Institute of Optical Functional Materials for Biomedical Imaging, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Jia Yuan
- School of Chemistry and Pharmaceutical Engineering, Institute of Optical Functional Materials for Biomedical Imaging, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Diqing Wang
- School of Chemistry and Pharmaceutical Engineering, Institute of Optical Functional Materials for Biomedical Imaging, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Weiyi Wang
- School of Chemistry and Pharmaceutical Engineering, Institute of Optical Functional Materials for Biomedical Imaging, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Xiao Sun
- School of Chemistry and Pharmaceutical Engineering, Institute of Optical Functional Materials for Biomedical Imaging, Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Qingwei Meng
- Department of Medical Oncology, Harbin Medical University Cancer Hospital, Harbin, China
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12
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Guo C, Yang M, He J, Kan G, Yu K, Liu Z, Lin S, Jiang J, Zhang H. Hypochlorous acid initiated lipid chlorination at air-water interface. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 798:149320. [PMID: 34340067 DOI: 10.1016/j.scitotenv.2021.149320] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 06/24/2021] [Accepted: 07/24/2021] [Indexed: 06/13/2023]
Abstract
There has been a surge of interest in interfacial hypochlorous acid (HOCl) chemistry for indoor air quality and public health. Here we combined nanoelectrospray mass spectrometry (nESI-MS) and acoustic levitation (AL) techniques to study the chlorination chemistry of three model lipids (DPPE, POPG, DOPG) mediated by HOCl at the air-water interface of levitated water droplet. For DPPE with no CC double bonds, HOCl was insensitive to the alkane chains, and showed considerable delay directing to head amino groups compared to that in aqueous environment. Chlorination chemistry, for POPG and DOPG with CC double bonds, preferentially reacted with double bonds of one chain. The mechanism was discussed in light of these observations, and it is concluded that the increased hydrophilicity of the chlorinated chain disturbed the lipid packing and attracted it toward the water phase. In addition, the reaction rate constant and reactive uptake coefficient suggested that the chlorination of lipids exposed to HOCl at the air-water interface is likely to occur rapidly. These results gain the knowledge of HOCl mediated lipid interface reaction at the molecule level, and would better understand the adverse health effects associated with elevated indoor pollutants.
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Affiliation(s)
- Changlu Guo
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Miao Yang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Jing He
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Guangfeng Kan
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Kai Yu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Zhuo Liu
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Sifan Lin
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China
| | - Jie Jiang
- State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin, Heilongjiang 150090, China.
| | - Hong Zhang
- School of Marine Science and Technology, Harbin Institute of Technology at Weihai, Weihai, Shandong 264209, China.
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13
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Zhang K, Jiang N, Sang X, Feng Y, Chen R, Chen Q. Trypanosoma brucei Lipophosphoglycan Induces the Formation of Neutrophil Extracellular Traps and Reactive Oxygen Species Burst via Toll-Like Receptor 2, Toll-Like Receptor 4, and c-Jun N-Terminal Kinase Activation. Front Microbiol 2021; 12:713531. [PMID: 34394064 PMCID: PMC8355521 DOI: 10.3389/fmicb.2021.713531] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 07/06/2021] [Indexed: 01/21/2023] Open
Abstract
Trypanosoma brucei brucei is the causative agent of African animal trypanosomosis, which mainly parasitizes the blood of the host. Lipophosphoglycan (LPG), a polymer anchored to the surface of the parasites, activates the host immune response. In this study, we revealed that T. brucei LPG stimulated neutrophils to form neutrophil extracellular traps (NETs) and release the reactive oxygen species (ROS). We further analyzed the involvement of toll-like receptor 2 (TLR2) and toll-like receptor 4 (TLR4) and explored the activation of signaling pathway enzymes in response to LPG stimulation. During the stimulation of neutrophils by LPG, the blockade using anti-TLR2 and anti-TLR4 antibodies reduced the phosphorylation of c-Jun N-terminal kinase (JNK), the release of DNA from the NETs, and the burst of ROS. Moreover, the addition of JNK inhibitor and nicotinamide adenine dinucleotide phosphate (NADPH) oxidase inhibitor exhibited similar effects. Our data suggest that T. brucei LPG activates the phosphorylation of JNK through TLR2 and TLR4 recognition, which causes the formation of NETs and the burst of ROS.
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Affiliation(s)
- Kai Zhang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Ning Jiang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Xiaoyu Sang
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Ying Feng
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Ran Chen
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
| | - Qijun Chen
- Key Laboratory of Livestock Infectious Diseases in Northeast China, Key Laboratory of Zoonosis, Ministry of Education, College of Animal Science and Veterinary Medicine, Shenyang Agricultural University, Shenyang, China.,The Research Unit for Pathogenic Mechanisms of Zoonotic Parasites, Chinese Academy of Medical Sciences, Shenyang, China
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14
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Stanley CP, Stocker R. Regulation of vascular tone and blood pressure by singlet molecular oxygen in inflammation. Curr Opin Nephrol Hypertens 2021; 30:145-150. [PMID: 33427761 DOI: 10.1097/mnh.0000000000000679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
PURPOSE OF REVIEW The principle aim of this review is to prompt vascular researchers interested in vascular inflammation and oxidative stress to consider singlet molecular oxygen (1O2) as a potentially relevant contributor. A secondary goal is to propose novel treatment strategies to address haemodynamic complications associated with septic shock. RECENT FINDINGS Increased inflammation and oxidative stress are hallmarks of a range of vascular diseases. We recently showed that in systemic inflammation and oxidative stress associated with models of inflammation including sepsis, the tryptophan catabolizing enzyme indoleamine 2,3-dioxygenase-1 (Ido1) contributes to hypotension and decreased blood pressure through production of singlet molecular oxygen (1O2). Once formed, 1O2 converts tryptophan bound to Ido1 to a vasoactive hydroperoxide which decreases arterial tone and blood pressure via oxidation of a specific cysteine residue of protein kinase G1α. SUMMARY These works show, for the first time, that 1O2 contributes to arterial redox signalling and that Ido1 contributes to the regulation of blood pressure through production of a novel tryptophan-derived hydroperoxide, thus presenting a new signalling pathway as novel target in the treatment of blood pressure disorders such as sepsis.
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Affiliation(s)
- Christopher P Stanley
- Heart Research Institute, Newtown
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
| | - Roland Stocker
- Heart Research Institute, Newtown
- Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales, Australia
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15
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Miyamoto S, Lima RS, Inague A, Viviani LG. Electrophilic oxysterols: generation, measurement and protein modification. Free Radic Res 2021; 55:416-440. [PMID: 33494620 DOI: 10.1080/10715762.2021.1879387] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Cholesterol is an essential component of mammalian plasma membranes. Alterations in sterol metabolism or oxidation have been linked to various pathological conditions, including cardiovascular diseases, cancer, and neurodegenerative disorders. Unsaturated sterols are vulnerable to oxidation induced by singlet oxygen and other reactive oxygen species. This process yields reactive sterol oxidation products, including hydroperoxides, epoxides as well as aldehydes. These oxysterols, in particular those with high electrophilicity, can modify nucleophilic sites in biomolecules and affect many cellular functions. Here, we review the generation and measurement of reactive sterol oxidation products with emphasis on cholesterol hydroperoxides and aldehyde derivatives (electrophilic oxysterols) and their effects on protein modifications.
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Affiliation(s)
- Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Rodrigo S Lima
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Alex Inague
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Lucas G Viviani
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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16
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Shao J, Yan ZY, Tang M, Huang CH, Sheng ZG, Chen J, Shao B, Zhu BZ. Potent oxidation of DNA by Ru(ii) tri(polypyridyl) complexes under visible light irradiation via a singlet oxygen-mediated mechanism. Inorg Chem Front 2021. [DOI: 10.1039/d0qi01518k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The irradiation of Ru(ii) tri(polypridyl) complexes with visible light can induce potent oxidation of DNA mediated by 1O2via a type II photosensitization mechanism.
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Affiliation(s)
- Jie Shao
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Zhu-Ying Yan
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Miao Tang
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Chun-Hua Huang
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Zhi-Guo Sheng
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Jing Chen
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Bo Shao
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
| | - Ben-Zhan Zhu
- State Key Laboratory of Environmental Chemistry and Eco-toxicology
- Research Centre for Eco-environmental Sciences and University of the Chinese Academy of Sciences
- the Chinese Academy of Sciences
- Beijing 100085
- PR China
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17
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Ambaw YA, Fuchs D, Raida M, Mazengia NT, Torta F, Wheelock CE, Wenk MR, Tong L. Changes of tear lipid mediators after eyelid warming or thermopulsation treatment for meibomian gland dysfunction. Prostaglandins Other Lipid Mediat 2020; 151:106474. [PMID: 32783924 DOI: 10.1016/j.prostaglandins.2020.106474] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/26/2020] [Accepted: 07/14/2020] [Indexed: 01/17/2023]
Abstract
Meibomian gland dysfunction (MGD) represents a major cause of dry eye and ocular discomfort. Lipid mediators, often termed oxylipins, can be produced enzymatically or non-enzymatically, and may modulate inflammatory processes in MGD. Here, we aimed to assess the longitudinal changes of lipid mediators after various eyelid treatments (eyelid warming and thermopulsation) over 12 weeks. Secondly, we aimed to assess the chirality of mono-hydroxyl lipid mediators from tears of MGD and healthy participants. Tears lipid mediators were extracted from Schirmer's strips and levels were quantified by liquid chromatography mass spectrometry (LC-MS) techniques. We quantified 33 lipid mediators in the tear, 18 of which (including 11-HETE, 20-OH-LTB4, and 15-oxoETE) were reduced significantly after treatment. Changes in concentrations of 10-HDoHE (r = 0.54) and 15-oxoETE (r = 0.54) were correlated to the number of meibomian gland plugs at baseline, so increased severity of MGD was associated with treatment-induced change in lipid mediators. The chiral analysis demonstrated that 5(S)-HETE, 12(S)-HETE, 15(S)-HETE, 14(S)-HDoHE, 17(S)-HDoHE and 11(R)-HETE were produced with significant enantiomeric excess (ee %) in controls compared to patients, due to enantiomer selective enzymatic action, whereas most lipid mediators were racemates in patients, due to dominance of oxidative effects which have no enantiomeric preference. Treatment of MGD restored the concentrations of 15(S)-HETE, 14(S)-HDoHE and 17(S)-HDoHE with significant ee values, suggesting reduction in oxidative action. Overall, MGD therapy reduced pro-inflammatory molecules generated by lipoxygenase and oxidative stress.
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Affiliation(s)
- Yohannes Abere Ambaw
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore; Department of Molecular Metabolism, Harvard T.H. Chan School of Public Health, Harvard University, USA
| | - David Fuchs
- Department of Medicine Debre, Berhan University, Ethiopia
| | - Manfred Raida
- Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore
| | | | - Federico Torta
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore
| | - Craig E Wheelock
- Division of Physiological Chemistry II Department of Medical Biochemistry and Biophysics Karolinska Institutet, Sweden
| | - Markus R Wenk
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Singapore Lipidomics Incubator, Life Sciences Institute, National University of Singapore, Singapore
| | - Louis Tong
- Department of Ophthalmology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Department of Cornea and External Eye Disease, Singapore National Eye Center, Singapore; Duke-NUS Medical School, Singapore; Ocular Surface Research Group, Singapore Eye Research Institute, Singapore.
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18
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Hoshioka Y, Abe H, Yajima D, Makino Y, Yamaguchi R, Saitoh H, Inokuchi G, Motomura A, Nagasawa S, Iwase H. The composition of chlorinated or oxidized phosphatidylcholine products changes with hypochlorite concentration: Application to abscess lipid analysis. Leg Med (Tokyo) 2020; 46:101724. [PMID: 32516737 DOI: 10.1016/j.legalmed.2020.101724] [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: 01/07/2020] [Revised: 05/12/2020] [Accepted: 05/31/2020] [Indexed: 10/24/2022]
Abstract
Hypochlorous acid, produced by myeloperoxidase upon neutrophil activation, can oxidize various compounds and exert antimicrobial activity in vivo. To elucidate the mechanisms underlying the reactions of the unsaturated phosphatidylcholines, which abound in cell membranes, with hypochlorous acid, we identified and examined phosphatidylcholine chlorination and oxidation products formed under various reaction conditions. We first investigated the products of unsaturated phosphatidylcholine and hypochlorous acid reaction with respect to hypochlorite concentration and reaction time. Next, we examined the lipids extracted postmortem from human abscesses. For all the analyses, we used liquid chromatography-quadrupole time-of-flight mass spectrometry. Various compounds, including phosphatidylcholine chlorohydrin and phosphatidylcholine hydroxide/epoxide, were detected. Oxidized phosphatidylcholines were mainly detectable upon reaction with low concentrations of sodium hypochlorite, whereas chlorinated phosphatidylcholines formed in the presence of higher concentrations. In human abscesses, oxidized phosphatidylcholines were detected in the cases with high procalcitonin concentration, whereas chlorinated phosphatidylcholines were undetected. The detections of oxidized phosphatidylcholines in human tissues might indicate previous exposure to hypochlorous acid in septic cases. Our results provide insight into the mechanisms underlying pathogen survival following inflammation associated with neutrophil activation and topical myeloperoxidase release and show postmortem biomarkers candidates for sepsis.
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Affiliation(s)
- Yumi Hoshioka
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Hiroko Abe
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Daisuke Yajima
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, School of Medicine, International University of Health and Welfare, 4-3 Kozunomori, Narita City, Chiba 286-8686, Japan.
| | - Yohsuke Makino
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Rutsuko Yamaguchi
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Hisako Saitoh
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Go Inokuchi
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
| | - Ayumi Motomura
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, School of Medicine, International University of Health and Welfare, 4-3 Kozunomori, Narita City, Chiba 286-8686, Japan.
| | - Sayaka Nagasawa
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan.
| | - Hirotaro Iwase
- Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba City, Chiba 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan.
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19
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Panasenko OM, Torkhovskaya TI, Gorudko IV, Sokolov AV. The Role of Halogenative Stress in Atherogenic Modification of Low-Density Lipoproteins. BIOCHEMISTRY (MOSCOW) 2020; 85:S34-S55. [PMID: 32087053 DOI: 10.1134/s0006297920140035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
This review discusses formation of reactive halogen species (RHS) catalyzed by myeloperoxidase (MPO), an enzyme mostly present in leukocytes. An imbalance between the RHS production and body's ability to remove or neutralize them leads to the development of halogenative stress. RHS reactions with proteins, lipids, carbohydrates, and antioxidants in the content of low-density lipoproteins (LDLs) of the human blood are described. MPO binds site-specifically to the LDL surface and modifies LDL properties and structural organization, which leads to the LDL conversion into proatherogenic forms captured by monocytes/macrophages, which causes accumulation of cholesterol and its esters in these cells and their transformation into foam cells, the basis of atherosclerotic plaques. The review describes the biomarkers of MPO enzymatic activity and halogenative stress, as well as the involvement of the latter in the development of atherosclerosis.
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Affiliation(s)
- O M Panasenko
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia.
| | - T I Torkhovskaya
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia.,Orekhovich Institute of Biomedical Chemistry, Moscow, 119121, Russia
| | - I V Gorudko
- Belarusian State University, Minsk, 220030, Belarus
| | - A V Sokolov
- Federal Research and Clinical Center of Physico-Chemical Medicine, Federal Medical Biological Agency, Moscow, 119435, Russia. .,Institute of Experimental Medicine, St. Petersburg, 197376, Russia
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20
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Long L, Han Y, Liu W, Chen Q, Yin D, Li L, Yuan F, Han Z, Gong A, Wang K. Simultaneous Discrimination of Hypochlorite and Single Oxygen during Sepsis by a Dual-Functional Fluorescent Probe. Anal Chem 2020; 92:6072-6080. [DOI: 10.1021/acs.analchem.0c00492] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Lingliang Long
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Yuanyuan Han
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Weiguo Liu
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Qian Chen
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Dandan Yin
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - LuLu Li
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Fang Yuan
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Zhixiang Han
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Aihua Gong
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, School of Medicine, School of the Environment and Safety Engineering, Key Laboratory of Modern Agriculture Equipment and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, P. R. China
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21
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Jiang J, Chen HY, Zhou XT, Chen YJ, Xue C, Ji HB. Biomimetic Aerobic Epoxidation of Alkenes Catalyzed by Cobalt Porphyrin under Ambient Conditions in the Presence of Sunflower Seeds Oil as a Co-Substrate. ACS OMEGA 2020; 5:4890-4899. [PMID: 32201774 PMCID: PMC7081295 DOI: 10.1021/acsomega.9b03714] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2019] [Accepted: 02/19/2020] [Indexed: 05/04/2023]
Abstract
In this work, a mild and sustainable catalytic aerobic epoxidation of alkenes catalyzed by cobalt porphyrin was performed in the presence of sunflower seeds oil. Under ambient conditions, the conversion rate of trans-stilbene reached 99%, and selectivity toward epoxide formation was 88%. The kinetic studies showed that the aerobic epoxidation followed the Michaelis-Menten kinetics. Mass spectroscopy and in situ electron spin resonance indicated that linoleic acid was converted to fatty aldehydes via hydroperoxide intermediates. A plausible mechanism of epoxidation of alkenes was accordingly proposed.
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Affiliation(s)
- Jun Jiang
- Fine
Chemical Industry Research Institute, the Key Laboratory of Low-carbon
Chemistry & Energy Conservation of Guangdong Province, School
of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Hong-Yu Chen
- Fine
Chemical Industry Research Institute, the Key Laboratory of Low-carbon
Chemistry & Energy Conservation of Guangdong Province, School
of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
| | - Xian-Tai Zhou
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
- E-mail: (X.-T. Zhou)
| | - Ya-Ju Chen
- School
of Chemical Engineering, Guangdong University
of Petrochemical Technology, Maoming 525000, P.R. China
| | - Can Xue
- School
of Chemical Engineering and Technology, Sun Yat-sen University, Zhuhai 519082, China
| | - Hong-Bing Ji
- Fine
Chemical Industry Research Institute, the Key Laboratory of Low-carbon
Chemistry & Energy Conservation of Guangdong Province, School
of Chemistry, Sun Yat-sen University, Guangzhou 510275, China
- School
of Chemical Engineering, Guangdong University
of Petrochemical Technology, Maoming 525000, P.R. China
- E-mail: . Tel.: +86-20-84113658. Fax: +86-20-84113654 (H.-B. Ji)
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22
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Prado FM, Scalfo AC, Miyamoto S, Medeiros MHG, Di Mascio P. Generation of Singlet Molecular Oxygen by Lipid Hydroperoxides and Nitronium Ion †. Photochem Photobiol 2020; 96:560-569. [PMID: 32108956 DOI: 10.1111/php.13236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 12/23/2019] [Indexed: 11/29/2022]
Abstract
Singlet molecular oxygen is a reactive species involved in biological oxidative processes. The major cellular targets of singlet molecular oxygen are unsaturated fatty acids in the membrane, as well as nucleic acids and proteins. The aim of this study was to investigate whether lipids and commercial hydroperoxides generate singlet molecular oxygen, in presence of nitronium and activated nitronium ion. For this purpose, monomol light emitted in the near-infrared region (λ = 1270 nm) was used to monitor singlet molecular oxygen decay in different solvents, with different hydroperoxides and in the presence of azide. Direct measurements of the singlet molecular oxygen spectrum at 1270 nm recorded during the reaction between lipids and commercial hydroperoxides and nitronium ions unequivocally demonstrated the formation of this excited species.
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Affiliation(s)
- Fernanda M Prado
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Alexsandra C Scalfo
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Marisa H G Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
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23
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Oliveira MS, Chorociejus G, Angeli JPF, Vila Verde G, Aquino GLB, Ronsein GE, Oliveira MCBD, Barbosa LF, Medeiros MHG, Greer A, Di Mascio P. Heck reaction synthesis of anthracene and naphthalene derivatives as traps and clean chemical sources of singlet molecular oxygen in biological systems. Photochem Photobiol Sci 2020; 19:1590-1602. [DOI: 10.1039/d0pp00153h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Our study shows that new anthracene and naphthalene derivatives function as compounds for trapping and chemically generating singlet molecular oxygen [O2(1Δg)], respectively. The syntheses of these derivatives are described, as well as some localization testing in cells.
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Affiliation(s)
| | - Gabriel Chorociejus
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - José Pedro F. Angeli
- Rudolf Virchow Center for Translational Bioimaging
- University of Würzburg
- 97080 Würzburg
- Germany
| | - Giuliana Vila Verde
- Campus Anápolis de Ciências Exatas e Tecnológicas Henrique Santillo
- Universidade Estadual de Goiás
- 75001-970 Anápolis
- Brazil
| | - Gilberto L. B. Aquino
- Campus Anápolis de Ciências Exatas e Tecnológicas Henrique Santillo
- Universidade Estadual de Goiás
- 75001-970 Anápolis
- Brazil
| | - Graziella E. Ronsein
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | | | - Livea F. Barbosa
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Marisa H. G. Medeiros
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
| | - Alexander Greer
- Department of Chemistry
- Brooklyn College
- City University of New York
- Brooklyn
- USA
| | - Paolo Di Mascio
- Departamento de Bioquímica
- Instituto de Química
- Universidade de São Paulo
- São Paulo
- Brazil
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Chen Y, Deng J, Liu F, Dai P, An Y, Wang Z, Zhao Y. Energy-Free, Singlet Oxygen-Based Chemodynamic Therapy for Selective Tumor Treatment without Dark Toxicity. Adv Healthc Mater 2019; 8:e1900366. [PMID: 31365192 DOI: 10.1002/adhm.201900366] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 07/16/2019] [Indexed: 11/08/2022]
Abstract
Traditional singlet oxygen-based antitumor therapies have been burdened with the necessity of external energy (e.g., light and ultrasound) and harmful dark toxicity. Ascorbate at the pharmacological concentration could accumulate hydrogen peroxide only in the tumor site. It is postulated that the concurrent delivery of ascorbate and nanoparticulate hypochlorous ion (ClO- ) could produce singlet oxygen at the tumor site as an energy-free, tumor-specific therapy. The ClO- is loaded in a hybrid core-shell nanocarrier consisting of a zeolitic imidazolate framework and amphiphilic poloxamer 188. Intracellular singlet oxygen production is verified in 4T1 cells by the cooperation between hybrid nanocarriers and ascorbate, which induces significant apoptotic cell death. Upon intravenous nanocarriers delivery plus intraperitoneal ascorbate administration to xenograft mice, the in vivo antitumor efficacy of this cooperative nanomedicine is demonstrated without noticeable side-effects. This work demonstrates a proof-of-concept of singlet oxygen-based chemodynamic therapy for selective tumor eradication, which produces a novel trigger-free, singlet oxygen-based cancer therapy without the side effects of traditional photodynamic and sonodynamic therapy.
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Affiliation(s)
- Yanrui Chen
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Jian Deng
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Fang Liu
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Peipei Dai
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Yang An
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Zheng Wang
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
| | - Yanjun Zhao
- School of Pharmaceutical Science & TechnologyTianjin Key Laboratory for Modern Drug Delivery & High EfficiencyCollaborative Innovation Center of Chemical Science and Engineering (Tianjin)Tianjin University Tianjin 300072 P. R. China
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Niedźwiedzka-Rystwej P, Repka W, Tokarz-Deptuła B, Deptuła W. "In sickness and in health" - how neutrophil extracellular trap (NET) works in infections, selected diseases and pregnancy. J Inflamm (Lond) 2019; 16:15. [PMID: 31297037 PMCID: PMC6599315 DOI: 10.1186/s12950-019-0222-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Accepted: 06/24/2019] [Indexed: 12/30/2022] Open
Abstract
The discovery of the NET network (neutrophil extracellular trap) has revolutionized the perception of defense mechanisms used by neutrophils in infections and non-infectious states, as this mechanism proves the complexity of the ways in which neutrophils can act in the organism. The paper describes the NET network and its participation in bacterial, viral, fungal and parasitic infections, both in a positive and a negative aspect. In addition, attention was paid to the participation of NETs in the course of autoimmune diseases, cancer, as well as its impact on pregnancy and fertility in mammals.
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Affiliation(s)
| | - Weronika Repka
- Scientific Student’s Association for Microbiology, University of Szczecin, Szczecin, Poland
| | - Beata Tokarz-Deptuła
- Department of Immunology, Faculty of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland
| | - Wiesław Deptuła
- Department of Microbiology, Faculty of Biology, University of Szczecin, Felczaka 3c, 71-412 Szczecin, Poland
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Robinson-Duggon J, Mariño-Ocampo N, Barrias P, Zúñiga-Núñez D, Günther G, Edwards AM, Greer A, Fuentealba D. Mechanism of Visible-Light Photooxidative Demethylation of Toluidine Blue O. J Phys Chem A 2019; 123:4863-4872. [DOI: 10.1021/acs.jpca.9b03588] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- José Robinson-Duggon
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
- Departamento de Bioquímica, Facultad de Ciencias Naturales, Exactas y Tecnología, Universidad de Panamá, Panamá 0824, Panamá
| | - Nory Mariño-Ocampo
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Pablo Barrias
- Laboratorio de Cinética y Fotoquímica, Facultad de Química y Biología, Universidad de Santiago de Chile, Alameda 3363, Estación Central, Santiago, Chile
| | - Daniel Zúñiga-Núñez
- Laboratorio de Cinética y Fotoquímica, Facultad de Química y Biología, Universidad de Santiago de Chile, Alameda 3363, Estación Central, Santiago, Chile
| | - Germán Günther
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Casilla 233, Santiago, Chile
| | - Ana María Edwards
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
| | - Alexander Greer
- Department of Chemistry, Brooklyn College, City University of New York, Brooklyn, New York 11210, United States
- Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, New York 10016, United States
| | - Denis Fuentealba
- Laboratorio de Química Biosupramolecular, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago, Chile
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Dong H, Fan Y, Zhang W, Gu N, Zhang Y. Catalytic Mechanisms of Nanozymes and Their Applications in Biomedicine. Bioconjug Chem 2019; 30:1273-1296. [PMID: 30966739 DOI: 10.1021/acs.bioconjchem.9b00171] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The research on nanozymes has increased dramatically in recent years and a new interdiscipline, nanozymology, has emerged. A variety of nanomaterials have been designed to mimic the characteristics of natural enzymes, which connects an important bridge between nanotechnology and biological science. Unlike natural enzymes, the nanoscale properties of nanozymes endow them with the potential to regulate their enzymatic-like activity from different perspectives. The mechanisms behind those methods are intriguing. In this Review, we introduce these mechanisms from the aspects of surface chemistry, surface modification, molecular imprinting, and hybridization and then focus attention on some specific catalytic mechanisms of several representative nanozymes. The applications of nanozymes ranging from bioassay, imaging, to disease therapy are also discussed in detail to prove the fact that the inherent physicochemical properties of nanomaterials not only make nanozymes the analogues of biological enzymes, but also endow them with incomparable advantages and broad prospects in biomedical fields. Finally, four characteristics and some challenges of nanozymes are summarized.
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Affiliation(s)
- Haijiao Dong
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Yaoyao Fan
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Wei Zhang
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China.,The Jiangsu Province Research Institute for Clinical Medicine , The First Affiliated Hospital of Nanjing Medical University , Nanjing 210029 , P.R. China
| | - Ning Gu
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
| | - Yu Zhang
- School of Biological Science and Medical Engineering , Southeast University, State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices , Nanjing , Jiangsu 210096 , P.R. China
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Shumaev KB, Gorudko IV, Kosmachevskaya OV, Grigorieva DV, Panasenko ОM, Vanin AF, Topunov AF, Terekhova MS, Sokolov AV, Cherenkevich SN, Ruuge EK. Protective Effect of Dinitrosyl Iron Complexes with Glutathione in Red Blood Cell Lysis Induced by Hypochlorous Acid. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2798154. [PMID: 31089406 PMCID: PMC6476047 DOI: 10.1155/2019/2798154] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/15/2018] [Accepted: 01/27/2019] [Indexed: 01/05/2023]
Abstract
Hypochlorous acid (HOCl), one of the major precursors of free radicals in body cells and tissues, is endowed with strong prooxidant activity. In living systems, dinitrosyl iron complexes (DNIC) with glutathione ligands play the role of nitric oxide donors and possess a broad range of biological activities. At micromolar concentrations, DNIC effectively inhibit HOCl-induced lysis of red blood cells (RBCs) and manifest an ability to scavenge alkoxyl and alkylperoxyl radicals generated in the reaction of HOCl with tert-butyl hydroperoxide. DNIC proved to be more effective cytoprotective agents and organic free radical scavengers in comparison with reduced glutathione (GSH). At the same time, the kinetics of HOCl-induced oxidation of glutathione ligands in DNIC is slower than in the case of GSH. HOCl-induced oxidative conversions of thiolate ligands cause modification of DNIC, which manifests itself in inclusion of other ligands. It is suggested that the strong inhibiting effect of DNIC with glutathione on HOCl-induced lysis of RBCs is determined by their antioxidant and regulatory properties.
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Affiliation(s)
- Konstantin B. Shumaev
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
| | | | - Olga V. Kosmachevskaya
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Оleg M. Panasenko
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Anatoly F. Vanin
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow 119991, Russia
| | - Alexey F. Topunov
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Alexey V. Sokolov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Institute of Experimental Medicine, Saint Petersburg 197376, Russia
| | | | - Enno K. Ruuge
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
- Lomonosov Moscow State University, Faculty of Physics, Moscow 119234, Russia
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Comprehensive measurements of hydroxylinoleate and hydroxyarachidonate isomers in blood samples from primary open-angle glaucoma patients and controls. Sci Rep 2019; 9:2171. [PMID: 30778084 PMCID: PMC6379359 DOI: 10.1038/s41598-018-36952-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Accepted: 11/27/2018] [Indexed: 12/12/2022] Open
Abstract
We previously reported that lower systemic antioxidant capacity is involved in primary open-angle glaucoma (POAG) and exfoliation syndrome pathogeneses as measured by ferric-reducing activity. In the present study, we measured hydroxylinoleate (HODE) and hydroxyarachidonate (HETE) isomer serum levels after sample reduction and saponification to investigate POAG pathogenesis. POAG patients (n = 198) were recruited and divided into normal- and high-tension glaucoma groups (n = 84 and 114, respectively) depending on intraocular pressure. Total HODE (/linoleic acid) and HETE (/arachidonic acid) serum levels were significantly higher in the POAG group (211.9 ± 143.0 and 181.0 ± 164.1 µmol/mol, respectively) than in controls (167.1 ± 105.2 and 132.5 ± 139.7 µmol/mol, p = 0.0025 and 0.0101, respectively). The associations between HODEs/HETEs and glaucoma were further confirmed by multivariate analyses after adjusting for differences in demographic parameters. Among the HODE isomers, the levels of 9- and 13-(Z,E)-HODEs (p = 0.0014) and singlet oxygen-specific products (i.e., 10- and 12-(Z,E)-HODEs, p = 0.0345) were higher in the POAG group than in controls, while free radical-mediated oxidation-specific products (i.e., 9- and 13-(E,E)-HODEs, p = 0.0557) demonstrated a marginal difference. Enzymatic and singlet oxygen-mediated fatty acid oxidation may be major pathways of oxidation process in glaucoma subjects.
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Di Mascio P, Martinez GR, Miyamoto S, Ronsein GE, Medeiros MHG, Cadet J. Singlet Molecular Oxygen Reactions with Nucleic Acids, Lipids, and Proteins. Chem Rev 2019; 119:2043-2086. [DOI: 10.1021/acs.chemrev.8b00554] [Citation(s) in RCA: 253] [Impact Index Per Article: 50.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508-000, São Paulo, SP Brazil
| | - Glaucia R. Martinez
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, Universidade Federal do Paraná, 81531-990 Curitiba, PR, Brazil
| | - Sayuri Miyamoto
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508-000, São Paulo, SP Brazil
| | - Graziella E. Ronsein
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508-000, São Paulo, SP Brazil
| | - Marisa H. G. Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, CP 26077, CEP 05508-000, São Paulo, SP Brazil
| | - Jean Cadet
- Département de Médecine Nucléaire et Radiobiologie, Faculté de Médecine des Sciences de la Santé, Université de Sherbrooke, Sherbrooke, J1H 5N4 Québec, Canada
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31
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Zeinsteger PA, Barberón JL, Leaden PJ, Palacios A. Antioxidant properties of Calendula officinalis L. (Asteraceae) on Fe2+-initiated peroxidation of rat brain mitochondria. Med Chem Res 2018. [DOI: 10.1007/s00044-018-2254-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Martinez GR, Brum H, Sassaki GL, de Souza LM, Loureiro APDM, de Medeiros MHG, Di Mascio P. Oxidation of 1-N2-etheno-2'-deoxyguanosine by singlet molecular oxygen results in 2'-deoxyguanosine: a pathway to remove exocyclic DNA damage? Biol Chem 2018; 399:859-867. [PMID: 29664729 DOI: 10.1515/hsz-2017-0337] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 04/06/2018] [Indexed: 01/16/2023]
Abstract
Exocyclic DNA adducts are considered as potential tools for the study of oxidative stress-related diseases, but an important aspect is their chemical reactivity towards oxidant species. We report here the oxidation of 1-N2-etheno-2'-deoxyguanosine (1,N2-εdGuo) by singlet molecular oxygen (1O2) generated by a non-ionic water-soluble endoperoxide [N,N'-di(2,3-dihydroxypropyl)-1,4-naphthalenedipropanamide endoperoxide (DHPNO2)] and its corresponding oxygen isotopically labeled [18O]-[N,N'-di(2,3-dihydroxypropyl)-1,4- naphthalenedipropanamide endoperoxide (DHPN18O2)], and by photosensitization with two different photosensitizers [methylene blue (MB) and Rose Bengal (RB)]. Products detection and characterization were achieved using high performance liquid chromatography (HPLC) coupled to ultraviolet and electrospray ionization (ESI) tandem mass spectrometry, and nuclear magnetic resonance (NMR) analyses. We found that dGuo is regenerated via reaction of 1O2 with the ε-linkage, and we propose a dioxetane as an intermediate, which cleaves and loses the aldehyde groups as formate residues, or alternatively, it generates a 1,2-ethanediol adduct. We also report herein the quenching rate constants of 1O2 by 1,N2-εdGuo and other etheno modified nucleosides. The rate constant (kt) values obtained for etheno nucleosides are comparable to the kt of dGuo. From these results, we suggest a possible role of 1O2 in the cleanup of etheno adducts by regenerating the normal base.
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Affiliation(s)
- Glaucia Regina Martinez
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, UFPR, CP 19046, CEP 81531-980, Curitiba PR, Brazil
| | - Hulyana Brum
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, UFPR, CP 19046, CEP 81531-980, Curitiba PR, Brazil
| | - Guilherme Lanzi Sassaki
- Departamento de Bioquímica e Biologia Molecular, Setor de Ciências Biológicas, UFPR, CP 19046, CEP 81531-980, Curitiba PR, Brazil
| | - Lauro Mera de Souza
- Instituto de Pesquisa Pelé Pequeno Príncipe, Faculdades Pequeno Príncipe, Curitiba PR, Brazil
| | - Ana Paula de Melo Loureiro
- Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo (USP), CEP 05508-000, São Paulo SP, Brazil
| | - Marisa Helena Gennari de Medeiros
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo (USP), Av. Prof. Lineu Prestes, 748, CEP 05508-000, Brazil
| | - Paolo Di Mascio
- Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo (USP), Av. Prof. Lineu Prestes, 748, CEP 05508-000, Brazil
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Lima IAD, Khalil NM, Tominaga TT, Lechanteur A, Sarmento B, Mainardes RM. Mucoadhesive chitosan-coated PLGA nanoparticles for oral delivery of ferulic acid. ARTIFICIAL CELLS NANOMEDICINE AND BIOTECHNOLOGY 2018; 46:993-1002. [DOI: 10.1080/21691401.2018.1477788] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Isabela Angeli de Lima
- Department of Pharmacy, Laboratory of Pharmaceutical Nanotechnology, Universidade Estadual do Centro-Oeste/UNICENTRO, Guarapuava, Brazil
| | - Najeh Maissar Khalil
- Department of Pharmacy, Laboratory of Pharmaceutical Nanotechnology, Universidade Estadual do Centro-Oeste/UNICENTRO, Guarapuava, Brazil
| | - Tania Toyomi Tominaga
- Department of Physics, Universidade Estadual do Centro-Oeste/UNICENTRO, Guarapuava, PR, Brazil
| | - Anna Lechanteur
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- Laboratory of Pharmaceutical Technology and Biopharmacy (LPTB) CIRM, Department of Pharmacy, University of Liege, Liege, Belgium
| | - Bruno Sarmento
- INEB – Instituto de Engenharia Biomédica, Universidade do Porto, Porto, Portugal
- i3S – Instituto de Investigação and Inovação em Saúde, Universidade do Porto, Porto, Portugal
- CESPU – Instituto de Investigação e Formação Avançada em Ciências and Tecnologias da Saúde, Gandra, Portugal
| | - Rubiana Mara Mainardes
- Department of Pharmacy, Laboratory of Pharmaceutical Nanotechnology, Universidade Estadual do Centro-Oeste/UNICENTRO, Guarapuava, Brazil
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Dutta T, Chandra F, Koner AL. A rapid, naked-eye detection of hypochlorite and bisulfite using a robust and highly-photostable indicator dye Quinaldine Red in aqueous medium. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 191:217-220. [PMID: 29040926 DOI: 10.1016/j.saa.2017.10.037] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/29/2017] [Accepted: 10/10/2017] [Indexed: 06/07/2023]
Abstract
A "naked-eye" detection of health hazardous bisulfite (HSO3-) and hypochlorite (ClO-) using an indicator dye (Quinaldine Red, QR) in a wide range of pH is demonstrated. The molecule contains a quinoline moiety linked to an N,N-dimethylaniline moiety with a conjugated double bond. Treatment of QR with HSO3- and ClO-, in aqueous solution at near-neutral pH, resulted in a colorless product with high selectivity and sensitivity. The detection limit was 47.8μM and 0.2μM for HSO3- and ClO- respectively. However, ClO- was 50 times more sensitive and with 2 times faster response compared to HSO3-. The detail characterization and related analysis demonstrate the potential of QR for a rapid, robust and highly efficient colorimetric sensor for the practical applications to detect hypochlorite in water samples.
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Affiliation(s)
- Tanoy Dutta
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India
| | - Falguni Chandra
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India
| | - Apurba L Koner
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, Madhya Pradesh, India.
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Sun XM, Geng LJ, Ren LJ, Ji XJ, Hao N, Chen KQ, Huang H. Influence of oxygen on the biosynthesis of polyunsaturated fatty acids in microalgae. BIORESOURCE TECHNOLOGY 2018; 250:868-876. [PMID: 29174352 DOI: 10.1016/j.biortech.2017.11.005] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 11/03/2017] [Accepted: 11/05/2017] [Indexed: 05/02/2023]
Abstract
As one of the most important environmental factors, oxygen is particularly important for synthesis of n-3 polyunsaturated fatty acids (n-3 PUFA) in microalgae. In general, a higher oxygen supply is beneficial for cell growth but obstructs PUFA synthesis. The generation of reactive oxygen species (ROS) under aerobic conditions, which leads to the peroxidation of lipids and especially PUFA, is an inevitable aspect of life, but is often ignored in fermentation processes. Irritability, microalgal cells are able to activate a number of anti-oxidative defenses, and the lipid profile of many species is reported to be altered under oxidative stress. In this review, the effects of oxygen on the PUFA synthesis, sources of oxidative damage, and anti-oxidative defense systems of microalgae were summarized and discussed. Moreover, this review summarizes the published reports on microalgal biotechnology involving direct/indirect oxygen regulation and new bioreactor designs that enable the improved production of PUFA.
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Affiliation(s)
- Xiao-Man Sun
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - Ling-Jun Geng
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - Lu-Jing Ren
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China.
| | - Xiao-Jun Ji
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - Ning Hao
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - Ke-Quan Chen
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
| | - He Huang
- Jiangsu National Synergetic Innovation Center for Advanced Materials, State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, School of Pharmacy, Nanjing Tech University, No. 30 South Puzhu Road, Nanjing 211816, People's Republic of China
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Umeno A, Fukui T, Hashimoto Y, Kataoka M, Hagihara Y, Nagai H, Horie M, Shichiri M, Yoshino K, Yoshida Y. Early diagnosis of type 2 diabetes based on multiple biomarkers and non-invasive indices. J Clin Biochem Nutr 2017; 62:187-194. [PMID: 29610560 PMCID: PMC5874237 DOI: 10.3164/jcbn.17-81] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Accepted: 09/05/2017] [Indexed: 01/23/2023] Open
Abstract
We previously reported that type 2 diabetes risk, early impaired glucose tolerance and insulin resistance can be predicted by measuring the fasting levels of certain biomarkers. Here we validated these findings in randomly recruited healthy volunteers (n = 101) based on biomarker expression as well as various non-invasive indices. Weight, body mass index, waist circumference and visceral fat differed between individuals with impaired fasting glucose and/or impaired glucose tolerance, and normal subjects. Fasting plasma levels of glycated hemoglobin, leptin, pro-insulin and retinol binding protein 4 differed between impaired fasting glucose/impaired glucose tolerance and normal subjects group and between newly detected diabetes and normal subjects group. Insulin resistance was correlated with fasting levels of insulin and leptin/adiponectin (r = 0.913); of insulin, retinol binding protein 4 and leptin/adiponectin (r = 0.903); and of insulin, glycated albumin, and leptin/adiponectin (r = 0.913). Type 2 diabetes risk, early impaired glucose tolerance and insulin resistance were predicted with >98% specificity and sensitivity by comparing fasting glucose levels to the estimated Matsuda Index based on fasting levels of insulin, adiponectin and leptin with or without oxidative lineolate metabolites. Non-invasive indices are slightly correlated with glucose tolerance and insulin resistance but do not increase the accuracy of predicting type 2 diabetes risk.
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Affiliation(s)
- Aya Umeno
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
| | - Toshiki Fukui
- Olive Takamatsu Medical Clinic. 649-8 Kankou-cho, Takamatsu, Kagawa 760-0076, Japan
| | - Yoshiko Hashimoto
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
| | - Masatoshi Kataoka
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
| | - Yoshihisa Hagihara
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-8-31 Midorigaoka. Ikeda, Osaka 563-8577, Japan
| | - Hidenori Nagai
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-8-31 Midorigaoka. Ikeda, Osaka 563-8577, Japan
| | - Masanori Horie
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
| | - Mototada Shichiri
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology, 1-8-31 Midorigaoka. Ikeda, Osaka 563-8577, Japan
| | - Kohzoh Yoshino
- School of Science and Technology, Kwansei Gakuin University, 2-1 Shigakuen, Sanda, Hyogo 669-1337, Japan
| | - Yasukazu Yoshida
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, 2217-14 Hayashi-cho, Takamatsu, Kagawa 761-0395, Japan
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Bauer G. Autoamplificatory singlet oxygen generation sensitizes tumor cells for intercellular apoptosis-inducing signaling. Mech Ageing Dev 2017; 172:59-77. [PMID: 29137940 DOI: 10.1016/j.mad.2017.11.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Revised: 09/01/2017] [Accepted: 11/01/2017] [Indexed: 11/16/2022]
Abstract
Tumor cells express NADPH oxidase-1 (NOX1) in their membrane and control NOX1-based intercellular reactive oxygen and nitrogen species (ROS/RNS)-dependent apoptosis-inducing signaling through membrane-associated catalase and superoxide dismutase. TREATMENT of tumor cells with high concentrations of H2O2, peroxnitrite, HOCl, or increasing the concentration of cell-derived NO causes initial generation of singlet oxygen and local inactivation of membrane-associated catalase. As a result, free peroxynitrite and H2O2 interact and generate secondary singlet oxygen. Inactivation of further catalase molecules by secondary singlet oxygen leads to auto-amplification of singlet oxygen generation and catalase inactivation. This allows reactivation of intercellular ROS/RNS-signaling and selective apoptosis induction in tumor cells. The initial singlet oxygen generation seems to be the critical point in this complex biochemical multistep mechanism. Initial singlet oxygen generation requires the interaction between distinct tumor cell-derived ROS and RNS and may also depend on either the induction of NO synthase expression or NOX1 activation through the FAS receptor. FAS receptor activation can be achieved by singlet oxygen. Autoamplificatory generation of singlet oxygen through the interaction between peroxynitrite and hydrogen peroxide inherits a rich potential for the establishment of synergistic effects that may be instrumental for novel approaches of tumor therapy with high selectivity towards malignant cells.
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Affiliation(s)
- Georg Bauer
- Institute of Virology, Medical Center - University of Freiburg, Germany; Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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38
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Wong JPS, Carslaw N, Zhao R, Zhou S, Abbatt JPD. Observations and impacts of bleach washing on indoor chlorine chemistry. INDOOR AIR 2017. [PMID: 28646605 DOI: 10.1111/ina.12402] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
Ambient levels of chlorinated gases and aerosol components were measured by online chemical ionization and aerosol mass spectrometers after an indoor floor were repeatedly washed with a commercial bleach solution. Gaseous chlorine (Cl2 , 10's of ppbv) and hypochlorous acid (HOCl, 100's of ppbv) arise after floor washing, along with nitryl chloride (ClNO2 ), dichlorine monoxide (Cl2 O), and chloramines (NHCl2 , NCl3 ). Much higher mixing ratios would prevail in a room with lower and more commonly encountered air exchange rates than that observed in the study (12.7 h-1 ). Coincident with the formation of gas-phase species, particulate chlorine levels also rise. Cl2 , ClNO2 , NHCl2 , and NCl3 exist in the headspace of the bleach solution, whereas HOCl was only observed after floor washing. HOCl decays away 1.4 times faster than the air exchange rate, indicative of uptake onto room surfaces, and consistent with the well-known chlorinating ability of HOCl. Photochemical box modeling captures the temporal profiles of Cl2 and HOCl very well and indicates that the OH, Cl, and ClO gas-phase radical concentrations in the indoor environment could be greatly enhanced (>106 and 105 cm-3 for OH and Cl, respectively) in such washing conditions, dependent on the amount of indoor illumination.
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Affiliation(s)
- J P S Wong
- School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA, USA
| | - N Carslaw
- Environment Department, University of York, York, UK
| | - R Zhao
- Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, CA, USA
| | - S Zhou
- Department of Chemistry, University of Toronto, Toronto, ON, Canada
| | - J P D Abbatt
- Department of Chemistry, University of Toronto, Toronto, ON, Canada
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A meta-analysis and review examining a possible role for oxidative stress and singlet oxygen in diverse diseases. Biochem J 2017; 474:2713-2731. [PMID: 28768713 DOI: 10.1042/bcj20161058] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 06/22/2017] [Accepted: 06/23/2017] [Indexed: 01/29/2023]
Abstract
From kinetic data (k, T) we calculated the thermodynamic parameters for various processes (nucleation, elongation, fibrillization, etc.) of proteinaceous diseases that are related to the β-amyloid protein (Alzheimer's), to tau protein (Alzheimer's, Pick's), to α-synuclein (Parkinson's), prion, amylin (type II diabetes), and to α-crystallin (cataract). Our calculations led to ΔG≠ values that vary in the range 92.8-127 kJ mol-1 at 310 K. A value of ∼10-30 kJ mol-1 is the activation energy for the diffusion of reactants, depending on the reaction and the medium. The energy needed for the excitation of O2 from the ground to the first excited state (1Δg, singlet oxygen) is equal to 92 kJ mol-1 So, the ΔG≠ is equal to the energy needed for the excitation of ground state oxygen to the singlet oxygen (1Δg first excited) state. The similarity of the ΔG≠ values is an indication that a common mechanism in the above disorders may be taking place. We attribute this common mechanism to the (same) role of the oxidative stress and specifically of singlet oxygen, (1Δg), to the above-mentioned processes: excitation of ground state oxygen to the singlet oxygen, 1Δg, state (92 kJ mol-1), and reaction of the empty π* orbital with high electron density regions of biomolecules (∼10-30 kJ mol-1 for their diffusion). The ΔG≠ for cases of heat-induced cell killing (cancer) lie also in the above range at 310 K. The present paper is a review and meta-analysis of literature data referring to neurodegenerative and other disorders.
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Pathak V, Prasad A, Pospíšil P. Formation of singlet oxygen by decomposition of protein hydroperoxide in photosystem II. PLoS One 2017; 12:e0181732. [PMID: 28732060 PMCID: PMC5521840 DOI: 10.1371/journal.pone.0181732] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 07/06/2017] [Indexed: 11/18/2022] Open
Abstract
Singlet oxygen (1O2) is formed by triplet-triplet energy transfer from triplet chlorophyll to O2 via Type II photosensitization reaction in photosystem II (PSII). Formation of triplet chlorophyll is associated with the change in spin state of the excited electron and recombination of triplet radical pair in the PSII antenna complex and reaction center, respectively. Here, we have provided evidence for the formation of 1O2 by decomposition of protein hydroperoxide in PSII membranes deprived of Mn4O5Ca complex. Protein hydroperoxide is formed by protein oxidation initiated by highly oxidizing chlorophyll cation radical and hydroxyl radical formed by Type I photosensitization reaction. Under highly oxidizing conditions, protein hydroperoxide is oxidized to protein peroxyl radical which either cyclizes to dioxetane or recombines with another protein peroxyl radical to tetroxide. These highly unstable intermediates decompose to triplet carbonyls which transfer energy to O2 forming 1O2. Data presented in this study show for the first time that 1O2 is formed by decomposition of protein hydroperoxide in PSII membranes deprived of Mn4O5Ca complex.
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Affiliation(s)
- Vinay Pathak
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Ankush Prasad
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
| | - Pavel Pospíšil
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic
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Zhou Z, Song J, Tian R, Yang Z, Yu G, Lin L, Zhang G, Fan W, Zhang F, Niu G, Nie L, Chen X. Activatable Singlet Oxygen Generation from Lipid Hydroperoxide Nanoparticles for Cancer Therapy. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201701181] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Zijian Zhou
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics; Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Jibin Song
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Rui Tian
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics; Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Zhen Yang
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Lisen Lin
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Guofeng Zhang
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Fuwu Zhang
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
| | - Liming Nie
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics; Center for Molecular Imaging and Translational Medicine; School of Public Health; Xiamen University; Xiamen 361102 China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine; National Institute of Biomedical Imaging and Bioengineering; National Institutes of Health; Bethesda MD 20892 USA
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42
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Zhou Z, Song J, Tian R, Yang Z, Yu G, Lin L, Zhang G, Fan W, Zhang F, Niu G, Nie L, Chen X. Activatable Singlet Oxygen Generation from Lipid Hydroperoxide Nanoparticles for Cancer Therapy. Angew Chem Int Ed Engl 2017; 56:6492-6496. [PMID: 28470979 DOI: 10.1002/anie.201701181] [Citation(s) in RCA: 272] [Impact Index Per Article: 38.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 03/07/2017] [Indexed: 12/11/2022]
Abstract
Reactive oxygen species (ROS)-induced apoptosis is a widely practiced strategy for cancer therapy. Although photodynamic therapy (PDT) takes advantage of the spatial-temporal control of ROS generation, the meticulous participation of light, photosensitizer, and oxygen greatly hinders the broad application of PDT as a first-line cancer treatment option. An activatable system has been developed that enables tumor-specific singlet oxygen (1 O2 ) generation for cancer therapy, based on a Fenton-like reaction between linoleic acid hydroperoxide (LAHP) tethered on iron oxide nanoparticles (IO NPs) and the released iron(II) ions from IO NPs under acidic-pH condition. The IO-LAHP NPs are able to induce efficient apoptotic cancer cell death both in vitro and in vivo through tumor-specific 1 O2 generation and subsequent ROS mediated mechanism. This study demonstrates the effectiveness of modulating biochemical reactions as a ROS source to exert cancer death.
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Affiliation(s)
- Zijian Zhou
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China.,Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Jibin Song
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Rui Tian
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China.,Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Zhen Yang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Guocan Yu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Lisen Lin
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Guofeng Zhang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wenpei Fan
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Fuwu Zhang
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Gang Niu
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Liming Nie
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Xiamen University, Xiamen, 361102, China
| | - Xiaoyuan Chen
- Laboratory of Molecular Imaging and Nanomedicine, National Institute of Biomedical Imaging and Bioengineering, National Institutes of Health, Bethesda, MD, 20892, USA
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Abramova I, Rudshteyn B, Liebman JF, Greer A. Computed Regioselectivity and Conjectured Biological Activity of Ene Reactions of Singlet Oxygen with the Natural Product Hyperforin. Photochem Photobiol 2017; 93:626-631. [PMID: 28052331 DOI: 10.1111/php.12706] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Accepted: 11/16/2016] [Indexed: 01/12/2023]
Abstract
Hyperforin is a constituent of St. John's wort and coexists with the singlet oxygen sensitizer hypericin. Density functional theory, molecular mechanics and Connolly surface calculations show that accessibility in the singlet oxygen "ene" reaction favors the hyperforin "southwest" and "southeast" prenyl (2-methyl-2-butenyl) groups over the northern prenyl groups. While the southern part of hyperforin is initially more susceptible to oxidation, up to 4 "ene" reactions of singlet oxygen can take place. Computational results assist in predicting the fate of adjacent hydroperoxides in hyperforin, where the loss of hydrogen atoms may lead to the formation of a hydrotrioxide and a carbonyl instead of a Russell reaction.
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Affiliation(s)
- Inna Abramova
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
| | - Benjamin Rudshteyn
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
| | - Joel F Liebman
- Department of Chemistry and Biochemistry, University of Maryland, Baltimore County, Baltimore, MD
| | - Alexander Greer
- Department of Chemistry, Graduate Center, City University of New York, Brooklyn College, Brooklyn, NY
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Ohr plays a central role in bacterial responses against fatty acid hydroperoxides and peroxynitrite. Proc Natl Acad Sci U S A 2016; 114:E132-E141. [PMID: 28028230 DOI: 10.1073/pnas.1619659114] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Organic hydroperoxide resistance (Ohr) enzymes are unique Cys-based, lipoyl-dependent peroxidases. Here, we investigated the involvement of Ohr in bacterial responses toward distinct hydroperoxides. In silico results indicated that fatty acid (but not cholesterol) hydroperoxides docked well into the active site of Ohr from Xylella fastidiosa and were efficiently reduced by the recombinant enzyme as assessed by a lipoamide-lipoamide dehydrogenase-coupled assay. Indeed, the rate constants between Ohr and several fatty acid hydroperoxides were in the 107-108 M-1⋅s-1 range as determined by a competition assay developed here. Reduction of peroxynitrite by Ohr was also determined to be in the order of 107 M-1⋅s-1 at pH 7.4 through two independent competition assays. A similar trend was observed when studying the sensitivities of a ∆ohr mutant of Pseudomonas aeruginosa toward different hydroperoxides. Fatty acid hydroperoxides, which are readily solubilized by bacterial surfactants, killed the ∆ohr strain most efficiently. In contrast, both wild-type and mutant strains deficient for peroxiredoxins and glutathione peroxidases were equally sensitive to fatty acid hydroperoxides. Ohr also appeared to play a central role in the peroxynitrite response, because the ∆ohr mutant was more sensitive than wild type to 3-morpholinosydnonimine hydrochloride (SIN-1 , a peroxynitrite generator). In the case of H2O2 insult, cells treated with 3-amino-1,2,4-triazole (a catalase inhibitor) were the most sensitive. Furthermore, fatty acid hydroperoxide and SIN-1 both induced Ohr expression in the wild-type strain. In conclusion, Ohr plays a central role in modulating the levels of fatty acid hydroperoxides and peroxynitrite, both of which are involved in host-pathogen interactions.
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Chlorinated Phospholipids and Fatty Acids: (Patho)physiological Relevance, Potential Toxicity, and Analysis of Lipid Chlorohydrins. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:8386362. [PMID: 28090245 PMCID: PMC5206476 DOI: 10.1155/2016/8386362] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 10/24/2016] [Accepted: 11/06/2016] [Indexed: 12/17/2022]
Abstract
Chlorinated phospholipids are formed by the reaction of hypochlorous acid (HOCl), generated by the enzyme myeloperoxidase under inflammatory conditions, and the unsaturated fatty acyl residues or the head group. In the first case the generated chlorohydrins are both proinflammatory and cytotoxic, thus having a significant impact on the structures of biomembranes. The latter case leads to chloramines, the properties of which are by far less well understood. Since HOCl is also widely used as a disinfecting and antibacterial agent in medicinal, industrial, and domestic applications, it may represent an additional source of danger in the case of abuse or mishandling. This review discusses the reaction behavior of in vivo generated HOCl and biomolecules like DNA, proteins, and carbohydrates but will focus on phospholipids. Not only the beneficial and pathological (toxic) effects of chlorinated lipids but also the importance of these chlorinated species is discussed. Some selected cleavage products of (chlorinated) phospholipids and plasmalogens such as lysophospholipids, (chlorinated) free fatty acids and α-chloro fatty aldehydes, which are all well known to massively contribute to inflammatory diseases associated with oxidative stress, will be also discussed. Finally, common analytical methods to study these compounds will be reviewed with focus on mass spectrometric techniques.
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Ray RS, Katyal A. Myeloperoxidase: Bridging the gap in neurodegeneration. Neurosci Biobehav Rev 2016; 68:611-620. [PMID: 27343997 DOI: 10.1016/j.neubiorev.2016.06.031] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 06/20/2016] [Accepted: 06/21/2016] [Indexed: 10/21/2022]
Abstract
Neurodegenerative conditions present a group of complex disease pathologies mostly due to unknown aetiology resulting in neuronal death and permanent neurological disability. Any undesirable stress to the brain, disrupts homeostatic balance, through a remarkable convergence of pathophysiological changes and immune dysregulation. The crosstalk between inflammatory and oxidative mechanisms results in the release of neurotoxic mediators apparently spearheaded by myeloperoxidase derived from activated microglia, astrocytes, neurons as well as peripheral inflammatory cells. These isolated entities combinedly have the potential to flare up and contribute significantly to neuropathology and disease progression. Recent, clinicopathological evidence support the association of myeloperoxidase and its cytotoxic product, hypochlorous acid in a plethora of neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, Amyotrophic lateral sclerosis, Multiple sclerosis, Stroke, Epilepsy etc. But the biochemical and mechanistic insights into myeloperoxidase mediated neuroinflammation and neuronal death is still an uncharted territory. The current review outlines the emerging recognition of myeloperoxidase in neurodegeneration, which may offer novel therapeutic and diagnostic targets for neurodegenerative disorders.
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Affiliation(s)
- R S Ray
- Dr. B.R. Ambedkar Center for Biomedical Research (ACBR), University of Delhi, North Campus, Delhi 110 007, India.
| | - Anju Katyal
- Dr. B.R. Ambedkar Center for Biomedical Research (ACBR), University of Delhi, North Campus, Delhi 110 007, India.
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Kisic B, Miric D, Dragojevic I, Rasic J, Popovic L. Role of Myeloperoxidase in Patients with Chronic Kidney Disease. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1069743. [PMID: 27127544 PMCID: PMC4834151 DOI: 10.1155/2016/1069743] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 03/14/2016] [Indexed: 01/26/2023]
Abstract
Chronic kidney disease (CKD) is a worldwide public health problem. Patients with CKD have a number of disorders in the organism, and the presence of oxidative stress and systemic inflammation in these patients is the subject of numerous studies. Chronic inflammation joined with oxidative stress contributes to the development of numerous complications: accelerated atherosclerosis process and cardiovascular disease, emergence of Type 2 diabetes mellitus, development of malnutrition, anaemia, hyperparathyroidism, and so forth, affecting the prognosis and quality of life of patients with CKD. In this review we presented the potential role of the myeloperoxidase enzyme in the production of reactive/chlorinating intermediates and their role in oxidative damage to biomolecules in the body of patients with chronic kidney disease and end-stage renal disease. In addition, we discussed the role of modified lipoprotein particles under the influence of prooxidant MPO intermediates in the development of endothelial changes and cardiovascular complications in renal failure.
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Affiliation(s)
- Bojana Kisic
- Institute of Biochemistry, Medical Faculty Pristina, Kosovska Mitrovica 38220, Serbia
| | - Dijana Miric
- Institute of Biochemistry, Medical Faculty Pristina, Kosovska Mitrovica 38220, Serbia
| | - Ilija Dragojevic
- Institute of Biochemistry, Medical Faculty Pristina, Kosovska Mitrovica 38220, Serbia
| | - Julijana Rasic
- Institute of Pharmacology, Medical Faculty Pristina, Kosovska Mitrovica 38220, Serbia
| | - Ljiljana Popovic
- Institute of Pathophysiology, Medical Faculty Pristina, Kosovska Mitrovica 38220, Serbia
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48
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Di Mascio P, Martinez GR, Miyamoto S, Ronsein GE, Medeiros MH, Cadet J. Singlet molecular oxygen: Düsseldorf – São Paulo, the Brazilian connection. Arch Biochem Biophys 2016; 595:161-75. [DOI: 10.1016/j.abb.2015.11.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 07/28/2015] [Accepted: 11/10/2015] [Indexed: 12/12/2022]
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49
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Singlet oxygen production in Chlamydomonas reinhardtii under heat stress. Sci Rep 2016; 6:20094. [PMID: 26831215 PMCID: PMC4757480 DOI: 10.1038/srep20094] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2015] [Accepted: 12/17/2015] [Indexed: 11/16/2022] Open
Abstract
In the current study, singlet oxygen formation by lipid peroxidation induced by heat stress (40 °C) was studied in vivo in unicellular green alga Chlamydomonas reinhardtii. Primary and secondary oxidation products of lipid peroxidation, hydroperoxide and malondialdehyde, were generated under heat stress as detected using swallow-tailed perylene derivative fluorescence monitored by confocal laser scanning microscopy and high performance liquid chromatography, respectively. Lipid peroxidation was initiated by enzymatic reaction as inhibition of lipoxygenase by catechol and caffeic acid prevented hydroperoxide formation. Ultra-weak photon emission showed formation of electronically excited species such as triplet excited carbonyl, which, upon transfer of excitation energy, leads to the formation of either singlet excited chlorophyll or singlet oxygen. Alternatively, singlet oxygen is formed by direct decomposition of hydroperoxide via Russell mechanisms. Formation of singlet oxygen was evidenced by the nitroxyl radical 2,2,6,6-tetramethylpiperidine-1-oxyl detected by electron paramagnetic resonance spin-trapping spectroscopy and the imaging of green fluorescence of singlet oxygen sensor green detected by confocal laser scanning microscopy. Suppression of singlet oxygen formation by lipoxygenase inhibitors indicates that singlet oxygen may be formed via enzymatic lipid peroxidation initiated by lipoxygenase.
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Carotenoids from Marine Microalgae: A Valuable Natural Source for the Prevention of Chronic Diseases. Mar Drugs 2015; 13:5128-55. [PMID: 26287216 PMCID: PMC4557017 DOI: 10.3390/md13085128] [Citation(s) in RCA: 97] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2015] [Accepted: 08/03/2015] [Indexed: 12/12/2022] Open
Abstract
Epidemiological studies have shown a relation between antioxidants and the prevention of several chronic diseases. Microalgae are a potential novel source of bioactive molecules, including a wide range of different carotenoids that can be used as nutraceuticals, food supplements and novel food products. The objective of this review is (i) to update the research that has been carried out on the most known carotenoids produced by marine microalgae, including reporting on their high potentialities to produce other less known important compounds; (ii) to compile the work that has been done in order to establish some relationship between carotenoids and oxidative protection and treatment; (iii) to summarize the association of oxidative stress and the various reactive species including free radicals with several human diseases; and (iv) to provide evidence of the potential of carotenoids from marine microalgae to be used as therapeutics to treat or prevent these oxidative stress-related diseases.
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