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Chernyavskij DA, Lyamzaev KG, Pletjushkina OY, Chen F, Karpukhina A, Vassetzky YS, Chernyak BV, Popova EN. Mitochondrial fragmentation in early differentiation of human MB135 myoblasts: Role of mitochondrial ROS production in the absence of depolarization. Life Sci 2024; 354:122941. [PMID: 39098595 DOI: 10.1016/j.lfs.2024.122941] [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: 02/15/2024] [Revised: 07/15/2024] [Accepted: 08/01/2024] [Indexed: 08/06/2024]
Abstract
AIMS Study of the role of mitochondria-generated reactive oxygen species (mtROS) and mitochondrial polarization in mitochondrial fragmentation at the initial stages of myogenesis. MAIN METHODS Mitochondrial morphology, Drp1 protein phosphorylation, mitochondrial electron transport chain components content, mtROS and mitochondrial lipid peroxidation levels, and mitochondrial polarization were evaluated on days 1 and 2 of human MB135 myoblasts differentiation. A mitochondria-targeted antioxidant SkQ1 was used to elucidate the effect of mtROS on mitochondria. KEY FINDINGS In immortalized human MB135 myoblasts, mitochondrial fragmentation began on day 1 of differentiation before the myoblast fusion. This fragmentation was preceded by dephosphorylation of p-Drp1 (Ser-637). On day 2, an increase in the content of some mitochondrial proteins was observed, indicating mitochondrial biogenesis stimulation. Furthermore, we found that myogenic differentiation, even on day 1, was accompanied both by an increased production of mtROS, and lipid peroxidation of the inner mitochondrial membrane. SkQ1 blocked these effects and partially reduced the level of mitochondrial fragmentation, but did not affect the dephosphorylation of p-Drp1 (Ser-637). Importantly, mitochondrial fragmentation at early stages of MB135 differentiation was not accompanied by depolarization, as an important stimulus for mitochondrial fragmentation. SIGNIFICANCE Mitochondrial fragmentation during early myogenic differentiation depends on mtROS production rather than mitochondrial depolarization. SkQ1 only partially inhibited mitochondrial fragmentation, without significant effects on mitophagy or early myogenic differentiation.
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Affiliation(s)
| | - Konstantin G Lyamzaev
- Belozersky Institute of Physico-Chemical Biology, 119992 Moscow, Russia; The "Russian Clinical Research Center for Gerontology" of the Ministry of Healthcare of the Russian Federation, Pirogov Russian National Research Medical University, Moscow, Russia
| | | | - Fei Chen
- CNRS UMR9018, Institut Gustave Roussy, Université Paris-Saclay, 94805 Villejuif, France
| | - Anna Karpukhina
- Koltzov Institute of Developmental Biology, 117334 Moscow, Russia; CNRS UMR9018, Institut Gustave Roussy, Université Paris-Saclay, 94805 Villejuif, France
| | - Yegor S Vassetzky
- Koltzov Institute of Developmental Biology, 117334 Moscow, Russia; CNRS UMR9018, Institut Gustave Roussy, Université Paris-Saclay, 94805 Villejuif, France
| | - Boris V Chernyak
- Belozersky Institute of Physico-Chemical Biology, 119992 Moscow, Russia.
| | - Ekaterina N Popova
- Belozersky Institute of Physico-Chemical Biology, 119992 Moscow, Russia.
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2
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Wang Y. The interplay of exercise and polyphenols in cancer treatment: A focus on oxidative stress and antioxidant mechanisms. Phytother Res 2024; 38:3459-3488. [PMID: 38690720 DOI: 10.1002/ptr.8215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 04/12/2024] [Accepted: 04/14/2024] [Indexed: 05/02/2024]
Abstract
Exercise has been demonstrated to induce an elevated production of free radicals, leading to the onset of oxidative stress. Numerous studies highlight the positive impacts of aerobic exercise, primarily attributed to the increase in overall antioxidant capacity. The evidence suggests that engaging in aerobic exercise contributes to a reduction in the likelihood of advanced cancer and mortality. Oxidative stress occurs when there is an imbalance between the generation of free radicals and the collective antioxidant defense system, encompassing both enzymatic and nonenzymatic antioxidants. Typically, oxidative stress triggers the formation of reactive oxygen or nitrogen species, instigating or advancing various issues in cancers and other diseases. The pro-oxidant-antioxidant balance serves as a direct measure of this imbalance in oxidative stress. Polyphenols contain a variety of bioactive compounds, including flavonoids, flavanols, and phenolic acids, conferring antioxidant properties. Previous research highlights the potential of polyphenols as antioxidants, with documented effects on reducing cancer risk by influencing processes such as proliferation, angiogenesis, and metastasis. This is primarily attributed to their recognized antioxidant capabilities. Considering the extensive array of signaling pathways associated with exercise and polyphenols, this overview will specifically focus on oxidative stress, the antioxidant efficacy of polyphenols and exercise, and their intricate interplay in cancer treatment.
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Affiliation(s)
- Yubing Wang
- College of Physical Education, Qilu Normal University, Jinan, Shandong, China
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3
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Sun Y, Sheng R, Cao Z, Liu C, Li J, Zhang P, Du Y, Mo Q, Yao Q, Chen J, Zhang W. Bioactive fiber-reinforced hydrogel to tailor cell microenvironment for structural and functional regeneration of myotendinous junction. SCIENCE ADVANCES 2024; 10:eadm7164. [PMID: 38657071 PMCID: PMC11042749 DOI: 10.1126/sciadv.adm7164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Accepted: 03/18/2024] [Indexed: 04/26/2024]
Abstract
Myotendinous junction (MTJ) injuries are prevalent in clinical practice, yet the treatment approaches are limited to surgical suturing and conservative therapy, exhibiting a high recurrence rate. Current research on MTJ tissue engineering is scarce and lacks in vivo evaluation of repair efficacy. Here, we developed a three-dimensional-printed bioactive fiber-reinforced hydrogel containing mesenchymal stem cells (MSCs) and Klotho for structural and functional MTJ regeneration. In a rat MTJ defect model, the bioactive fiber-reinforced hydrogel promoted the structural restoration of muscle, tendon, and muscle-tendon interface and enhanced the functional recovery of injured MTJ. In vivo proteomics and in vitro cell cultures elucidated the regenerative mechanisms of the bioactive fiber-reinforced hydrogel by modulating oxidative stress and inflammation, thus engineering an optimized microenvironment to support the survival and differentiation of transplanted MSCs and maintain the functional phenotype of resident cells within MTJ tissues, including tendon/muscle cells and macrophages. This strategy provides a promising treatment for MTJ injuries.
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Affiliation(s)
- Yuzhi Sun
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
| | - Renwang Sheng
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Zhicheng Cao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
| | - Chuanquan Liu
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Jiaxiang Li
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
| | - Po Zhang
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
| | - Yan Du
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Qingyun Mo
- School of Medicine, Southeast University, 210009 Nanjing, China
| | - Qingqiang Yao
- Department of Orthopaedic Surgery, Institute of Digital Medicine, Nanjing First Hospital, Nanjing Medical University, 210006 Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), 310000 Hangzhou, China
| | - Jialin Chen
- School of Medicine, Southeast University, 210009 Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), 310000 Hangzhou, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China
| | - Wei Zhang
- School of Medicine, Southeast University, 210009 Nanjing, China
- China Orthopedic Regenerative Medicine Group (CORMed), 310000 Hangzhou, China
- Jiangsu Key Laboratory for Biomaterials and Devices, Southeast University, 210096 Nanjing, China
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Motta JVDO, Carneiro LS, Martínez LC, Bastos DSS, Resende MTCS, Castro BMC, Neves MM, Zanuncio JC, Serrão JE. Midgut Cell Damage and Oxidative Stress in Partamona helleri (Hymenoptera: Apidae) Workers Caused by the Insecticide Lambda-Cyhalothrin. Antioxidants (Basel) 2023; 12:1510. [PMID: 37627505 PMCID: PMC10451733 DOI: 10.3390/antiox12081510] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 07/19/2023] [Accepted: 07/26/2023] [Indexed: 08/27/2023] Open
Abstract
The stingless bee Partamona helleri plays a role in pollinating both native and cultivated plants in the Neotropics. However, its populations can be reduced by the pyrethroid insecticide lambda-cyhalothrin. This compound may cross the intestinal barrier and circulate through the hemolymph, affecting various non-target bee organs. The aim of the present study was to assess the extent of cellular damage in the midgut and the resulting oxidative stress caused by lambda-cyhalothrin in P. helleri workers. Bees were orally exposed to lambda-cyhalothrin. The lethal concentration at which 50% of the bees died (LC50) was 0.043 mg a.i. L-1. The P. helleri workers were fed this concentration of lambda-cyhalothrin and their midguts were evaluated. The results revealed signs of damage in the midgut epithelium, including pyknotic nuclei, cytoplasm vacuolization, changes in the striated border, and the release of cell fragments, indicating that the midgut was compromised. Furthermore, the ingestion of lambda-cyhalothrin led to an increase in the activity of the detoxification enzyme superoxide dismutase and the levels of the NO2/NO3 markers, indicating oxidative stress. Conversely, the activities of the catalase and glutathione S-transferase enzymes decreased, supporting the occurrence of oxidative stress. In conclusion, the ingestion of lambda-cyhalothrin by P. helleri workers resulted in damage to their midguts and induced oxidative stress.
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Affiliation(s)
- João Victor de Oliveira Motta
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Lenise Silva Carneiro
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | | | - Daniel Silva Sena Bastos
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Matheus Tudor Candido Santos Resende
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - Bárbara Monteiro Castro Castro
- Department of Entomology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (B.M.C.C.); (J.C.Z.)
| | - Mariana Machado Neves
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
| | - José Cola Zanuncio
- Department of Entomology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (B.M.C.C.); (J.C.Z.)
| | - José Eduardo Serrão
- Department of General Biology, Institute of Biotechnology Applied to Agriculture, Federal University of Viçosa, Viçosa 36570-900, Brazil; (J.V.d.O.M.); (L.S.C.); (D.S.S.B.); (M.T.C.S.R.); (M.M.N.)
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Buhr TJ, Reed CH, Wee OM, Lee JH, Yuan LL, Fleshner M, Valentine RJ, Clark PJ. The persistence of stress-induced physical inactivity in rats: an investigation of central monoamine neurotransmitters and skeletal muscle oxidative stress. Front Behav Neurosci 2023; 17:1169151. [PMID: 37273279 PMCID: PMC10237271 DOI: 10.3389/fnbeh.2023.1169151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Accepted: 04/24/2023] [Indexed: 06/06/2023] Open
Abstract
Introduction Sedentary lifestyles have reached epidemic proportions world-wide. A growing body of literature suggests that exposures to adverse experiences (e.g., psychological traumas) are a significant risk factor for the development of physically inactive lifestyles. However, the biological mechanisms linking prior stress exposure and persistent deficits in physical activity engagement remains poorly understood. Methods The purpose of this study was twofold. First, to identify acute stress intensity thresholds that elicit long-term wheel running deficits in rats. To that end, young adult male rats were exposed to a single episode of 0, 50, or 100 uncontrollable tail shocks and then given free access to running wheels for 9 weeks. Second, to identify stress-induced changes to central monoamine neurotransmitters and peripheral muscle physiology that may be maladaptive to exercise output. For this study, rats were either exposed to a single episode of uncontrollable tail shocks (stress) or left undisturbed in home cages (unstressed). Eight days later, monoamine-related neurochemicals were quantified by ultra-high performance liquid chromatography (UHPLC) across brain reward, motor, and emotion structures immediately following a bout of graded treadmill exercise controlled for duration and intensity. Additionally, protein markers of oxidative stress, inflammation, and metabolic activity were assessed in the gastrocnemius muscle by Western blot. Results For experiment 1, stress exposure caused a shock number-dependent two to fourfold decrease in wheel running distance across the entire duration of the study. For experiment 2, stress exposure curbed an exercise-induced increase of dopamine (DA) turnover measures in the prefrontal cortex and hippocampus, and augmented serotonin (5HT) turnover in the hypothalamus and remaining cortical area. However, stress exposure also caused several monoaminergic changes independent of exercise that could underlie impaired motivation for physical activity, including a mild dopamine deficiency in the striatal area. Finally, stress potently increased HSP70 and lowered SOD2 protein concentrations in the gastrocnemius muscle, which may indicate prolonged oxidative stress. Discussion These data support some of the possible central and peripheral mechanisms by which exposure to adverse experiences may chronically impair physical activity engagement.
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Affiliation(s)
- Trevor J. Buhr
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
- Interdepartmental Neuroscience Program, Iowa State University, Ames, IA, United States
| | - Carter H. Reed
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
- Department of Kinesiology, Iowa State University, Ames, IA, United States
| | - Olivia M. Wee
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
| | - Ji Heun Lee
- Department of Kinesiology, Iowa State University, Ames, IA, United States
| | - Li-Lian Yuan
- Physiology and Pharmacology, Des Moines University, Des Moines, IA, United States
| | - Monika Fleshner
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, United States
| | - Rudy J. Valentine
- Department of Kinesiology, Iowa State University, Ames, IA, United States
| | - Peter J. Clark
- Department of Food Science and Human Nutrition, Iowa State University, Ames, IA, United States
- Interdepartmental Neuroscience Program, Iowa State University, Ames, IA, United States
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6
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Smooth Muscle Cells from a Rat Model of Obesity and Hyperleptinemia Are Partially Resistant to Leptin-Induced Reactive Oxygen Species Generation. Antioxidants (Basel) 2023; 12:antiox12030728. [PMID: 36978976 PMCID: PMC10045401 DOI: 10.3390/antiox12030728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/05/2023] [Accepted: 03/11/2023] [Indexed: 03/18/2023] Open
Abstract
The aim of this study was to evaluate the effect of leptin on reactive oxygen species’ (ROS) generation of smooth muscle cells (SMCs) from a rat model of obesity and hyperleptinemia. Obesity and hyperleptinemia were induced in rats by a sucrose-based diet for 24 weeks. ROS generation was detected by using dichloro-dihydrofluorescein (DCF), a fluorescent ROS probe in primary SMCs culture. An increase in plasma leptin and oxidative stress markers was observed in sucrose-fed (SF) rats. At baseline SMCs from SF rats showed a more than twofold increase in fluorescence intensity (FI) compared to that obtained in control (C) cells. When the C cells were treated with 20 ng leptin, the FI increased by about 200%, whereas the leptin-induced FI in the SF cells increased only by 60%. In addition, sucrose feeding increased the levels of p22phox and gp91phox, subunits of Nox as an O2•− source in SMCs. Treatment of cells with leptin significantly increased p22phox and gp91phox levels in C cells and did not affect SF cells. Regarding STAT3 phosphorylation and the content of PTP1B and SOCS3 as protein markers of leptin resistance, they were found to be significantly increased in SF cells. These results suggest that SF aortic SMCs are partially resistant to leptin-induced ROS generation.
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7
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Mitochondrial Oxidative Stress and Mitophagy Activation Contribute to TNF-Dependent Impairment of Myogenesis. Antioxidants (Basel) 2023; 12:antiox12030602. [PMID: 36978858 PMCID: PMC10044935 DOI: 10.3390/antiox12030602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/16/2023] [Accepted: 02/24/2023] [Indexed: 03/06/2023] Open
Abstract
Many muscular pathologies are associated with oxidative stress and elevated levels of the tumor necrosis factor (TNF) that cause muscle protein catabolism and impair myogenesis. Myogenesis defects caused by TNF are mediated in part by reactive oxygen species (ROS), including those produced by mitochondria (mitoROS), but the mechanism of their pathological action is not fully understood. We hypothesized that mitoROS act by triggering and enhancing mitophagy, an important tool for remodelling the mitochondrial reticulum during myogenesis. We used three recently developed probes—MitoTracker Orange CM-H2TMRos, mito-QC, and MitoCLox—to study myogenesis in human myoblasts. Induction of myogenesis resulted in a significant increase in mitoROS generation and phospholipid peroxidation in the inner mitochondrial membrane, as well as mitophagy enhancement. Treatment of myoblasts with TNF 24 h before induction of myogenesis resulted in a significant decrease in the myoblast fusion index and myosin heavy chain (MYH2) synthesis. TNF increased the levels of mitoROS, phospholipid peroxidation in the inner mitochondrial membrane and mitophagy at an early stage of differentiation. Trolox and SkQ1 antioxidants partially restored TNF-impaired myogenesis. The general autophagy inducers rapamycin and AICAR, which also stimulate mitophagy, completely blocked myogenesis. The autophagy suppression by the ULK1 inhibitor SBI-0206965 partially restored myogenesis impaired by TNF. Thus, suppression of myogenesis by TNF is associated with a mitoROS-dependent increase in general autophagy and mitophagy.
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Korenevskiy NA, Al-Kasasbeh RT, Al-Kasasbeh ET, Al-Smadi MM, Aikeyeva AA, Al-Jundi M, Rodionova SN, Al-Habahbeh OM, Filist S, Alshamasin MS, Maksim I. Method for Determining the Body's Level of Protection According to Oxidant Status in Assessing the Influence of Industrial Risk Factors on Health. Crit Rev Biomed Eng 2023; 51:1-17. [PMID: 37551905 DOI: 10.1615/critrevbiomedeng.2023047224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
Abstract
This work aims at improving the quality of health assessments, specifically under the influence of occupational risk factors. For this purpose, additional informative indicators are utilized in prognostic and diagnostic models. The models are used to characterize the level of body protection based on oxidative status. A quantitative method is proposed to assess the body's level of protection by means of the levels of lipid peroxidation and antioxidant activity, which characterize the body's oxidative status. A mechanism is developed for integrating the proposed method into prognostic and diagnostic decision rules. The developed rules are in the form of mathematical models used to synthesize hybrid fuzzy decision rules, which are then used to quantify the level of body protection (LBP) against external risk factors, based on the use of protection level functions in terms of lipid peroxidation and antioxidant activity. A mechanism for embedding LBP into predictive and diagnostic decision rules has been proposed. The proposed method is used to predict the occurrence and development of coronary heart disease in railroad locomotive drivers. It was found that to improve the predicting and diagnosing of diseases caused by external pathogenic factors, quantitative assessments of LBP, determined by oxidative status, can be implemented. It has been established that the use of the protection level indicator in predictive decision rules makes it possible to increase the efficiency of the prediction while simultaneously increasing its accuracy.
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Affiliation(s)
| | - Riad Taha Al-Kasasbeh
- Department of Mechatronics Engineering, School of Engineering, The University of Jordan, Amman, Jordan
| | | | | | - Altyn A Aikeyeva
- Eurasian National University named after L.N. Gumilyov, Nur-Sultan, Kazakhstan
| | - Mohammad Al-Jundi
- Department of Endocrinology, Eunice Kennedy Shriver National Institute of Child and Human Development, National Institutes of Health, Bethesda, MD, USA
| | - Sofia N Rodionova
- Eurasian National University named after L.N. Gumilyov, Nur-Sultan, Kazakhstan; South-West State University, Kursk, Russia
| | - Osama M Al-Habahbeh
- Department of Mechatronics Engineering, School of Engineering, The University of Jordan, Amman, Jordan
| | | | - Mahdi Salman Alshamasin
- Department of Mechatronics Engineering, Faculty of Engineering Technology, Al-Balqa Applied University, Amman, Jordan
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Powers SK, Schrager M. Redox signaling regulates skeletal muscle remodeling in response to exercise and prolonged inactivity. Redox Biol 2022; 54:102374. [PMID: 35738088 PMCID: PMC9233275 DOI: 10.1016/j.redox.2022.102374] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 06/12/2022] [Accepted: 06/14/2022] [Indexed: 12/23/2022] Open
Abstract
Skeletal muscle fibers are malleable and undergo rapid remodeling in response to increased contractile activity (i.e., exercise) or prolonged periods of muscle inactivity (e.g., prolonged bedrest). Exploration of the cell signaling pathways regulating these skeletal muscle adaptations reveal that redox signaling pathways play a key role in the control of muscle remodeling during both exercise and prolonged muscle inactivity. In this regard, muscular exercise results in an acute increase in the production of reactive oxygen species (ROS) in the contracting fibers; however, this contraction-induced rise in ROS production rapidly declines when contractions cease. In contrast, prolonged muscle disuse results in a chronic elevation in ROS production within the inactive fibers. This difference in the temporal pattern of ROS production in muscle during exercise and muscle inactivity stimulates divergent cell-signaling pathways that activate both genomic and nongenomic mechanisms to promote muscle remodeling. This review examines the role that redox signaling plays in skeletal muscle adaptation in response to both prolonged muscle inactivity and endurance exercise training. We begin with a summary of the sites of ROS production in muscle fibers followed by a review of the cellular antioxidants that are responsible for regulation of ROS levels in the cell. We then discuss the specific redox-sensitive signaling pathways that promote skeletal muscle adaptation in response to both prolonged muscle inactivity and exercise. To stimulate future research, we close with a discussion of unanswered questions in this exciting field.
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Affiliation(s)
- Scott K Powers
- Department of Health Sciences, Stetson University, Deland, FL, 32723, USA.
| | - Matthew Schrager
- Department of Health Sciences, Stetson University, Deland, FL, 32723, USA
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10
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Murotomi K, Tawara H, Sutoh M, Yasunaga M. Iron-accumulating splenocytes may exacerbate non-alcoholic steatohepatitis through the production of proinflammatory cytokines and reactive oxygen species. Exp Biol Med (Maywood) 2022; 247:848-855. [PMID: 35187967 PMCID: PMC9160938 DOI: 10.1177/15353702221077218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 01/12/2022] [Indexed: 11/16/2022] Open
Abstract
Non-alcoholic steatohepatitis (NASH) results from non-alcoholic fatty liver disease (NAFLD) via multiple-parallel events, including hepatic triglyceride accumulation, oxidative stress, and inflammation. The complex interaction between the liver and multiple other organs is involved in NASH development. Although spleen-derived humoral factors can directly contribute to NAFLD/NASH onset via the portal vein, the status of the spleen in the early stage of NASH remains unknown. Here, our aim was to investigate whether splenocytes may exacerbate NASH via the generations of reactive oxygen species (ROS) and proinflammatory cytokines. Iron accumulation was observed in the spleen but not the liver, and the proportion of phagocytic macrophages increased in the spleen of Tsumura Suzuki Obese Diabetes (TSOD) mice showing histological characteristics of NASH in the early stage. The splenocytes generated moderate amounts of ROS and released high amounts of tumor necrosis factor (TNF)-α in response to lipopolysaccharide, indicating excessive inflammatory cytokine released by activated macrophages in iron-accumulating spleens. Our results suggest that iron-accumulating splenocytes can easily induce inflammation and contribute to exacerbate NASH via the portal vein. Thus, the regulation of iron metabolism in the spleen should be considered in the development of novel therapeutic targets against NASH.
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Affiliation(s)
- Kazutoshi Murotomi
- Biomedical Research Institute,
National Institute of Advanced Industrial Science and Technology (AIST),
Tsukuba 305-8566, Japan
| | - Hirosuke Tawara
- Institute for Animal
Reproduction, Kasumigaura 300-0134, Japan
| | - Mitsuko Sutoh
- Institute for Animal
Reproduction, Kasumigaura 300-0134, Japan
| | - Mayu Yasunaga
- Health and Medical Research
Institute, National Institute of Advanced Industrial Science and Technology
(AIST), Tsukuba 305-8566, Japan
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11
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The Role of Oxidative Stress in Skeletal Muscle Myogenesis and Muscle Disease. Antioxidants (Basel) 2022; 11:antiox11040755. [PMID: 35453440 PMCID: PMC9026549 DOI: 10.3390/antiox11040755] [Citation(s) in RCA: 54] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/28/2022] [Accepted: 03/28/2022] [Indexed: 02/06/2023] Open
Abstract
The contractile activity, high oxygen consumption and metabolic rate of skeletal muscle cause it to continuously produce moderate levels of oxidant species, such as reactive oxygen species (ROS) and reactive nitrogen species (RNS). Under normal physiological conditions, there is a dynamic balance between the production and elimination of ROS/RNS. However, when the oxidation products exceed the antioxidant defense capacity, the body enters a state of oxidative stress. Myogenesis is an important process to maintain muscle homeostasis and the physiological function of skeletal muscle. Accumulating evidence suggests that oxidative stress plays a key role in myogenesis and skeletal muscle physiology and pathology. In this review, we summarize the sources of reactive oxygen species in skeletal muscle and the causes of oxidative stress and analyze the key role of oxidative stress in myogenesis. Then, we discuss the relationship between oxidative stress and muscle homeostasis and physiopathology. This work systematically summarizes the role of oxidative stress in myogenesis and muscle diseases and provides targets for subsequent antioxidant therapy and repair of inflammatory damage in noninflammatory muscle diseases.
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12
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Jordan AC, Perry CGR, Cheng AJ. Promoting a pro-oxidant state in skeletal muscle: Potential dietary, environmental, and exercise interventions for enhancing endurance-training adaptations. Free Radic Biol Med 2021; 176:189-202. [PMID: 34560246 DOI: 10.1016/j.freeradbiomed.2021.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/06/2021] [Accepted: 09/16/2021] [Indexed: 12/17/2022]
Abstract
Accumulating evidence now shows that supplemental antioxidants including vitamin C, vitamin E and N-Acetylcysteine consumption can suppress adaptations to endurance-type exercise by attenuating reactive oxygen and nitrogen species (RONS) formation within skeletal muscle. This emerging evidence points to the importance of pro-oxidation as an important stimulus for endurance-training adaptations, including mitochondrial biogenesis, endogenous antioxidant production, insulin signalling, angiogenesis and growth factor signaling. Although sustained oxidative distress is associated with many chronic diseases, athletes have, on average, elevated levels of certain endogenous antioxidants to maintain redox homeostasis. As a result, trained athletes may have a better capacity to buffer oxidants during and after exercise, resulting in a reduced oxidative eustress stimulus for adaptations. Thus, higher levels of RONS input and exercise-induced oxidative stress may benefit athletes in the pursuit of continuous endurance training redox adaptations. This review addresses why athletes should be looking to enhance exercise-induced oxidative stress and how it can be accomplished. Methods covered include high-intensity interval training, hyperthermia and heat stress, dietary antioxidant restriction and modified antioxidant timing, dietary antioxidants and polyphenols as adjuncts to exercise, and vitamin C as a pro-oxidant.
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Affiliation(s)
- Adam C Jordan
- Muscle Health Research Centre, School of Kinesiology and Health Sciences, Faculty of Health, York University, M3J 1P3, Toronto, Canada
| | - Christopher G R Perry
- Muscle Health Research Centre, School of Kinesiology and Health Sciences, Faculty of Health, York University, M3J 1P3, Toronto, Canada
| | - Arthur J Cheng
- Muscle Health Research Centre, School of Kinesiology and Health Sciences, Faculty of Health, York University, M3J 1P3, Toronto, Canada.
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13
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Singh E, Matada GSP, Abbas N, Dhiwar PS, Ghara A, Das A. Management of COVID-19-induced cytokine storm by Keap1-Nrf2 system: a review. Inflammopharmacology 2021; 29:1347-1355. [PMID: 34373972 PMCID: PMC8352144 DOI: 10.1007/s10787-021-00860-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Accepted: 07/27/2021] [Indexed: 12/17/2022]
Abstract
The natural pathway of antioxidant production is mediated through Kelch-like erythroid cell-derived protein with Cap and collar homology [ECH]-associated protein 1 (Keap1)-Nuclear factor erythroid 2-related factor 2 (Nrf2) system. Keap1 maintains a low level of Nrf2 by holding it in its protein complex. Also, Keap1 facilitates the degradation of Nrf2 by ubiquitination. In other words, Keap1 is a down-regulator of Nrf2. To boost the production of biological antioxidants, Keap1 has to be inhibited and Nrf2 has to be released. Liberated Nrf2 is in an unbound state, so it travels to the nucleus to stimulate the antioxidant response element (ARE) present on the antioxidant genes. AREs activate biosynthesis of biological antioxidants through genes responsible for the production of antioxidants. In some cases of coronavirus disease 2019 (COVID-19), there is an enormous release of cytokines. The antioxidant defense mechanism in the body helps in counteracting symptoms induced by the cytokine storm in COVID-19. So, boosting the production of antioxidants is highly desirable in such a condition. In this review article, we have compiled the role of Keap1-Nrf2 system in antioxidant production. We further propose its potential therapeutic use in managing cytokine storm in COVID-19.
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Affiliation(s)
- Ekta Singh
- Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, Karnataka, 560107, India
| | | | - Nahid Abbas
- Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, Karnataka, 560107, India
| | - Prasad Sanjay Dhiwar
- Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, Karnataka, 560107, India
| | - Abhishek Ghara
- Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, Karnataka, 560107, India
| | - Arka Das
- Department of Pharmaceutical Chemistry, Acharya and BM Reddy College of Pharmacy, Bengaluru, Karnataka, 560107, India
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Lin J, Liu D, Wang X, Ahmed S, Li M, Kovinich N, Sui S. Transgene CpNAC68 from Wintersweet ( Chimonanthus praecox) Improves Arabidopsis Survival of Multiple Abiotic Stresses. PLANTS 2021; 10:plants10071403. [PMID: 34371606 PMCID: PMC8309309 DOI: 10.3390/plants10071403] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/05/2021] [Accepted: 07/05/2021] [Indexed: 12/15/2022]
Abstract
The NAC (NAM, ATAFs, CUC) family of transcription factors (TFs) play a pivotal role in regulating all processes of the growth and development of plants, as well as responses to biotic and abiotic stresses. Yet, the functions of NACs from non-model plant species remains largely uncharacterized. Here, we characterized the stress-responsive effects of a NAC gene isolated from wintersweet, an ornamental woody plant that blooms in winter when temperatures are low. CpNAC68 is clustered in the NAM subfamily. Subcellular localization and transcriptional activity assays demonstrated a nuclear protein that has transcription activator activities. qRT-PCR analyses revealed that CpNAC68 was ubiquitously expressed in old flowers and leaves. Additionally, the expression of CpNAC68 is induced by disparate abiotic stresses and hormone treatments, including drought, heat, cold, salinity, GA, JA, and SA. Ectopic overexpression of CpNAC68 in Arabidopsis thaliana enhanced the tolerance of transgenic plants to cold, heat, salinity, and osmotic stress, yet had no effect on growth and development. The survival rate and chlorophyll amounts following stress treatments were significantly higher than wild type Arabidopsis, and were accompanied by lower electrolyte leakage and malondialdehyde (MDA) amounts. In conclusion, our study demonstrates that CpNAC68 can be used as a tool to enhance plant tolerance to multiple stresses, suggesting a role in abiotic stress tolerance in wintersweet.
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Affiliation(s)
- Jie Lin
- Chongqing Engineering Research Center for Floriculture, Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; (J.L.); (D.L.); (X.W.); (M.L.)
- Department of Biology, Faculty of Science, York University, Toronto, ON M3J 1P3, Canada;
| | - Daofeng Liu
- Chongqing Engineering Research Center for Floriculture, Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; (J.L.); (D.L.); (X.W.); (M.L.)
| | - Xia Wang
- Chongqing Engineering Research Center for Floriculture, Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; (J.L.); (D.L.); (X.W.); (M.L.)
| | - Sajjad Ahmed
- Department of Biology, Faculty of Science, York University, Toronto, ON M3J 1P3, Canada;
| | - Mingyang Li
- Chongqing Engineering Research Center for Floriculture, Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; (J.L.); (D.L.); (X.W.); (M.L.)
| | - Nik Kovinich
- Department of Biology, Faculty of Science, York University, Toronto, ON M3J 1P3, Canada;
- Correspondence: (N.K.); (S.S.); Tel.: +1-416-736-2100 (N.K.); +86-23-6825-0086 (S.S.)
| | - Shunzhao Sui
- Chongqing Engineering Research Center for Floriculture, Key Laboratory of Horticulture Science for Southern Mountainous Regions of Ministry of Education, College of Horticulture and Landscape Architecture, Southwest University, Chongqing 400715, China; (J.L.); (D.L.); (X.W.); (M.L.)
- Correspondence: (N.K.); (S.S.); Tel.: +1-416-736-2100 (N.K.); +86-23-6825-0086 (S.S.)
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15
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Hernández-Fernández J, Pinzón-Velasco A, López EA, Rodríguez-Becerra P, Mariño-Ramírez L. Transcriptional Analyses of Acute Exposure to Methylmercury on Erythrocytes of Loggerhead Sea Turtle. TOXICS 2021; 9:70. [PMID: 33805397 PMCID: PMC8066450 DOI: 10.3390/toxics9040070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 03/11/2021] [Accepted: 03/17/2021] [Indexed: 01/09/2023]
Abstract
To understand changes in enzyme activity and gene expression as biomarkers of exposure to methylmercury, we exposed loggerhead turtle erythrocytes (RBCs) to concentrations of 0, 1, and 5 mg L-1 of MeHg and de novo transcriptome were assembled using RNA-seq. The analysis of differentially expressed genes (DEGs) indicated that 79 unique genes were dysregulated (39 upregulated and 44 downregulated genes). The results showed that MeHg altered gene expression patterns as a response to the cellular stress produced, reflected in cell cycle regulation, lysosomal activity, autophagy, calcium regulation, mitochondrial regulation, apoptosis, and regulation of transcription and translation. The analysis of DEGs showed a low response of the antioxidant machinery to MeHg, evidenced by the fact that genes of early response to oxidative stress were not dysregulated. The RBCs maintained a constitutive expression of proteins that represented a good part of the defense against reactive oxygen species (ROS) induced by MeHg.
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Affiliation(s)
- Javier Hernández-Fernández
- Department of Natural and Environmental Science, Marine Biology Program, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group–GENBIMOL, Jorge Tadeo Lozano University, Cra. 4 No 22-61, Bogotá 110311, Colombia;
- Faculty of Sciences, Department of Biology, Pontificia Universidad Javeriana, Calle 45, Cra. 7, Bogotá 110231, Colombia
| | - Andrés Pinzón-Velasco
- Bioinformática y Biología de Sistemas, Universidad Nacional de Colombia, Calle 45, Cra. 30, Bogotá 111321, Colombia;
| | - Ellie Anne López
- IDEASA Research Group-Environment and Sustainability, Institute of Environmental Studies and Services, Sergio Arboleda University, Bogotá 111711, Colombia;
| | - Pilar Rodríguez-Becerra
- Department of Natural and Environmental Science, Marine Biology Program, Faculty of Science and Engineering, Genetics, Molecular Biology and Bioinformatic Research Group–GENBIMOL, Jorge Tadeo Lozano University, Cra. 4 No 22-61, Bogotá 110311, Colombia;
| | - Leonardo Mariño-Ramírez
- NCBI, NLM, NIH Computational Biology Branch, Building 38A, Room 6S614M 8600 Rockville Pike, MSC 6075, Bethesda, MD 20894-6075, USA;
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16
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Effect of Dietary Methionine Deficiency Followed by a Re-Feeding Phase on the Hepatic Antioxidant Activities of Lambs. Animals (Basel) 2020; 11:ani11010007. [PMID: 33374518 PMCID: PMC7822206 DOI: 10.3390/ani11010007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 12/14/2020] [Accepted: 12/17/2020] [Indexed: 12/18/2022] Open
Abstract
Our objective was to investigate the effect of methionine restriction and resuming supply on liver antioxidant response in lambs. The concentrations of methionine and its metabolites and the expression of the nuclear factor erythroid 2-related factor 2 (Nrf2), a redox sensitive factor, were detected after methionine restriction treatment for 50 days and methionine supply recovery for 29 days. The expression of glutathione (GSH) S-transferase (GST), superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) were characterized at the level of transcription and translation. Methionine restriction can directly change the content of methionine and its metabolites in plasma and liver, and affect the redox state of lambs by activating the Nrf2 signaling pathway. Liver tissue can adapt to oxidative environment by upregulating the expression of antioxidant enzymes such as GSH-Px and SOD. Moreover, it was found that there was a lag effect in the recovery of metabolism after methionine supplementation.
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17
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Liu X, Heras G, Lauschke VM, Mi J, Tian G, Gastaldello S. High glucose-induced oxidative stress accelerates myogenesis by altering SUMO reactions. Exp Cell Res 2020; 395:112234. [DOI: 10.1016/j.yexcr.2020.112234] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 08/08/2020] [Accepted: 08/10/2020] [Indexed: 01/05/2023]
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18
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Abstract
Significance: The selenium-containing Glutathione peroxidases (GPxs)1-4 protect against oxidative challenge, inhibit inflammation and oxidant-induced regulated cell death. Recent Advances: GPx1 and GPx4 dampen phosphorylation cascades predominantly via prevention of inactivation of phosphatases by H2O2 or lipid hydroperoxides. GPx2 regulates the balance between regeneration and apoptotic cell shedding in the intestine. It inhibits inflammation-induced carcinogenesis in the gut but promotes growth of established cancers. GPx3 deficiency facilitates platelet aggregation likely via disinhibition of thromboxane biosynthesis. It is also considered a tumor suppressor. GPx4 is expressed in three different forms. The cytosolic form proved to inhibit interleukin-1-driven nuclear factor κB activation and leukotriene biosynthesis. Moreover, it is a key regulator of ferroptosis, because it reduces hydroperoxy groups of complex lipids and silences lipoxygenases. By alternate substrate use, the nuclear form contributes to chromatin compaction. Mitochondrial GPx4 forms the mitochondrial sheath of spermatozoa and, thus, guarantees male fertility. Out of the less characterized GPxs, the cysteine-containing GPx7 and GPx8 are unique in contributing to oxidative protein folding in the endoplasmic reticulum by reacting with protein isomerase as an alternate substrate. A yeast 2-Cysteine glutathione peroxidase equipped with CP and CR was reported to sense H2O2 for inducing an adaptive response. Critical Issues: Most of the findings compiled are derived from tissue culture and/or animal studies only. Their impact on human physiology is sometimes questionable. Future Directions: The expression of individual GPxs and GPx-dependent regulatory phenomena are to be further investigated, in particular in respect to human health.
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Affiliation(s)
- Regina Brigelius-Flohé
- Department of Biochemistry of Micronutrients, German Institute of Human Nutrition-Potsdam-Rehbrücke (DIfE), Nuthetal, Germany
| | - Leopold Flohé
- Depatamento de Biochímica, Universidad de la República, Montevideo, Uruguay.,Dipartimento di Medicina Moleculare, Università degli Studi di Padova, Padova, Italy
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19
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Riane K, Ouled-Haddar H, Alyane M, Sifour M, Espinosa C, Angeles Esteban M. Assessment of Streptococcus salivarius sp thermophiles Antioxidant Efficiency and its Role in Reducing Paracetamol Hepatotoxicity. IRANIAN JOURNAL OF BIOTECHNOLOGY 2020; 17:e2061. [PMID: 32671120 PMCID: PMC7357701 DOI: 10.30498/ijb.2019.91761] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Background: Probiotics have attracted a great attention aiming to develop natural non-toxic antioxidants, because of their role in decreasing the risk of reactive oxygen species [ROS] accumulation. Objectives: The purpose of this study was to assess the antioxidant activity of a probiotic Streptococcus salivarius ssp thermophillus [St.sa] and to evaluate its protective effect against the oxidative stress induced by a toxic dose of paracetamol in Wistar rats. Materials and Methods: Several assays were used to investigate the in vitro antioxidant capacity of the strain. To evaluate the protective effect against oxidative stress induced by paracetamol in liver, hepatic marker enzymes, the antioxidant enzyme activities, malondialdehyde [MDA] and glutathione [GSH] content in liver tissues were investigated. Results: The strain has shown a considerable ability to scavenge DPPH free radical [89.43%],a good resistance to hydroxyl radicals [47%], a considerable ability to chelate iron ions [33.21%] and a good inhibitory effect against plasma lipid peroxidation [54.36%]. Significant changes in liver function tests, antioxidant enzyme activities, MDA and GSH levels in paracetamol treated group were obtained compared to control group. Pretreatment with probiotic removed significantly the inhibition of antioxidant enzymes and suppressed MDA increase and GSH depletion. The analysis of the level of mRNA expression of antioxidant enzymes showed no significant differences in the expression of the enzymes in treated or non-treated groups. Conclusion: This finding emphasizes the protective role of probiotics against ROS generated during the treatment with paracetamol
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Affiliation(s)
- Karima Riane
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University Mohamed Seddik Benyahia of Jijel, Algeria
| | - Houria Ouled-Haddar
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University Mohamed Seddik Benyahia of Jijel, Algeria
| | - Mohamed Alyane
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University Mohamed Seddik Benyahia of Jijel, Algeria.,Ecole Nationale Supérieure de Biotechnologie, Constantine, Algeria
| | - Mohamed Sifour
- Laboratory of Molecular Toxicology, Faculty of Nature and Life Sciences, University Mohamed Seddik Benyahia of Jijel, Algeria
| | - Cristobal Espinosa
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
| | - Maria Angeles Esteban
- Fish Innate Immune System Group, Department of Cell Biology and Histology, Faculty of Biology, Campus Regional de Excelencia Internacional "Campus Mare Nostrum", University of Murcia, 30100 Murcia, Spain
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20
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Gupta P, Dutt V, Kaur N, Kalra P, Gupta S, Dua A, Dabur R, Saini V, Mittal A. S-allyl cysteine: A potential compound against skeletal muscle atrophy. Biochim Biophys Acta Gen Subj 2020; 1864:129676. [PMID: 32649980 DOI: 10.1016/j.bbagen.2020.129676] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 06/03/2020] [Accepted: 06/25/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Oxidative stress is crucial player in skeletal muscle atrophy pathogenesis. S-allyl cysteine (SAC), an organosulfur compound of Allium sativum, possesses broad-spectrum properties including immuno- and redox-modulatory impact. Considering the role of SAC in regulating redox balance, we hypothesize that SAC may have a protective role in oxidative-stress induced atrophy. METHODS C2C12 myotubes were treated with H2O2 (100 μM) in the presence or absence of SAC (200 μM) to study morphology, redox status, inflammatory cytokines and proteolytic systems using fluorescence microscopy, biochemical analysis, real-time PCR and immunoblotting approaches. The anti-atrophic potential of SAC was confirmed in denervation-induced atrophy model. RESULTS SAC pre-incubation (4 h) could protect the myotube morphology (i.e. length/diameter/fusion index) from atrophic effects of H2O2. Lower levels of ROS, lipid peroxidation, oxidized glutathione and altered antioxidant enzymes were observed in H2O2-exposed cells upon pre-treatment with SAC. SAC supplementation also suppressed the rise in cytokines levels (TWEAK/IL6/myostatin) caused by H2O2. SAC treatment also moderated the degradation of muscle-specific proteins (MHCf) in the H2O2-treated myotubes supported by lower induction of diverse proteolytic systems (i.e. cathepsin, calpain, ubiquitin-proteasome E3-ligases, caspase-3, autophagy). Denervation-induced atrophy in mice illustrates that SAC administration alleviates the negative effects (i.e. mass loss, decreased cross-sectional area, up-regulation of proteolytic systems, and degradation of total/specific protein) of denervation on muscles. CONCLUSIONS SAC exerts significant anti-atrophic effects to protect myotubes from H2O2-induced protein loss and myofibers from denervation-induced muscle loss, due to the prevention of elevated proteolytic systems and inflammatory/oxidative molecules. GENERAL SIGNIFICANCE The results signify the potential of SAC against muscle atrophy.
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Affiliation(s)
- Prachi Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Vikas Dutt
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Nirmaljeet Kaur
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Priya Kalra
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Sanjeev Gupta
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Anita Dua
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India
| | - Rajesh Dabur
- Biochemistry Department, MD University, Rohtak, Haryana 124001, India
| | - Vikram Saini
- Laboratory of Infection Biology and Translational Research, Department of Biotechnology, All India Institute of Medical Sciences, New Delhi 110029, India
| | - Ashwani Mittal
- Skeletal Muscle Laboratory, Institute of Integrated and Honors Studies, Kurukshetra University, Kurukshetra, Haryana 136119, India.
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21
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Wen C, Li F, Guo Q, Zhang L, Duan Y, Wang W, Li J, He S, Chen W, Yin Y. Protective effects of taurine against muscle damage induced by diquat in 35 days weaned piglets. J Anim Sci Biotechnol 2020; 11:56. [PMID: 32514342 PMCID: PMC7268319 DOI: 10.1186/s40104-020-00463-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 04/24/2020] [Indexed: 12/12/2022] Open
Abstract
Background Oxidative stress is a key factor that influences piglets’ health. Taurine plays an imperative role in keeping the biological system from damage. This study was conducted to investigate the protective effect of taurine against muscle injury due to the secondary effect of diquat toxicity. Results Our study found that taurine effectively and dose-dependently alleviated the diquat toxicity induced rise of feed/gain, with a concurrent improvement of carcass lean percentage. The plasma content of taurine was considerably increased in a dose-dependent manner. Consequently, dietary taurine efficiently improved the activity of plasma antioxidant enzymes. Furthermore, taurine attenuated muscle damage by restoring mitochondrial micromorphology, suppressing protein degradation and reducing the percentage of apoptotic cells in the skeletal muscle. Taurine supplementation also suppressed the genes expression levels of the antioxidant-, mitochondrial biogenesis-, and muscle atrophy-related genes in the skeletal muscle of piglets with oxidative stress. Conclusions These results showed that the dose of 0.60% taurine supplementation in the diet could attenuate skeletal muscle injury induced by diquat toxicity. It is suggested that taurine could be a potential nutritional intervention strategy to improve growth performance.
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Affiliation(s)
- Chaoyue Wen
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China.,Laboratory of Animal Nutrition and Human Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Science, Hunan Normal University, Changsha, 410081 Hunan China
| | - Fengna Li
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China
| | - Qiuping Guo
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China.,University of Chinese Academy of Sciences, Beijing, 100039 China
| | - Lingyu Zhang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China.,University of Chinese Academy of Sciences, Beijing, 100039 China
| | - Yehui Duan
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China
| | - Wenlong Wang
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China.,Laboratory of Animal Nutrition and Human Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Science, Hunan Normal University, Changsha, 410081 Hunan China
| | - Jianzhong Li
- Laboratory of Animal Nutrition and Human Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Science, Hunan Normal University, Changsha, 410081 Hunan China
| | - Shanping He
- Laboratory of Animal Nutrition and Human Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan International Joint Laboratory of Animal Intestinal Ecology and Health, Hunan Normal University, Changsha, 410081 Hunan China.,Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, College of Life Science, Hunan Normal University, Changsha, 410081 Hunan China
| | - Wen Chen
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China
| | - Yulong Yin
- Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Changsha, 410125 China.,Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125 China.,Hunan Provincial Engineering Research Center for Healthy Livestock and Poultry Production, Changsha, 410125 China.,National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Changsha, 410125 China.,Scientific Observing and Experimental Station of Animal Nutrition and Feed Science in South-Central, Ministry of Agriculture, Changsha, 410125 China
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22
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Muscular Dystrophy and Rehabilitation Interventions with Regenerative Treatment. CURRENT PHYSICAL MEDICINE AND REHABILITATION REPORTS 2020. [DOI: 10.1007/s40141-019-00255-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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23
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Kojić D, Purać J, Čelić TV, Jović D, Vukašinović EL, Pihler I, Borišev I, Djordjevic A. Effect of fullerenol nanoparticles on oxidative stress induced by paraquat in honey bees. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:6603-6612. [PMID: 31873898 DOI: 10.1007/s11356-019-07385-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/10/2019] [Indexed: 06/10/2023]
Abstract
The enormous progress in nanomaterials development and their use, followed by their inevitable environmental print, has arisen the emerging questions concerning their influence to the living systems. Honey bees are considered to be quite a suitable model system for the risk assessment and prediction of various external influences. To the best of our knowledge, this is the first study dealing with the influence of fullerenol nanoparticles (FNP), a biodegradable carbon nanomaterials' representative, to honey bees. This investigation was conducted with an aim to merge two different open-ended questions: the potential toxic effect of FNP to the bees on the one hand and antioxidative effect of FNP on the other hand. Since FNP antioxidative properties were proved in a number of in vivo models, we hypothesized the similar outcomes, and according to this assumption, we opted for paraquat as a well-known oxidative stress inducer. FNP did not have toxic effect in none of investigated concentrations. The results also confirmed the potential of FNP to reduce oxidative stress through the gene expression of antioxidative enzymes and the change in the redox state of the cells. Additional experiments are needed for a better understanding of the exact mechanism and complex patterns of FNP's activity.
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Affiliation(s)
- Danijela Kojić
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
| | - Jelena Purać
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia.
| | - Tatjana V Čelić
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
| | - Danica Jović
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
| | - Elvira L Vukašinović
- Faculty of Sciences, Department of Biology and Ecology, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
| | - Ivan Pihler
- Faculty of Agriculture, University of Novi Sad, Trg Dositeja Obradovića 8, Novi Sad, Serbia
| | - Ivana Borišev
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
| | - Aleksandar Djordjevic
- Faculty of Sciences, Department of Chemistry, Biochemistry and Environmental Protection, University of Novi Sad, Trg Dositeja Obradovića 3, Novi Sad, Serbia
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24
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Faes C, Juban G, Aufradet E, Desgeorges T, Charrin E, Connes P, Mury P, Mattè A, De Franceschi L, Martin C, Pialoux V. Effects of hypoxia-reoxygenation stimuli on renal redox status and nuclear factor erythroid 2-related factor 2 pathway in sickle cell SAD mice. Exp Physiol 2019; 105:357-369. [PMID: 31805612 DOI: 10.1113/ep087969] [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: 06/27/2019] [Accepted: 12/02/2019] [Indexed: 11/08/2022]
Abstract
NEW FINDINGS What is the central question of this study? What are the effects of repeated subclinical vaso-occlusions on nuclear factor erythroid 2 related factor 2 (Nrf2) and oxidative stress balance regulation in the kidney of transgenic SAD mice? What is the main finding and its importance? In response to hypoxia-reoxygenation, nuclear Nrf2 protein expression decreased in the kidney of SAD mice while haem oxygenase transcripts were increased. This suggest that in SAD mice, other transcription factors than Nrf2 could be involved in renal antioxidant gene regulation in response to hypoxia-reoxygenation. ABSTRACT Hypoxia-reoxygenation (H/R) stress is known to increase oxidative stress in transgenic sickle mice and can cause organ failure. Here we described the effects of H/R on nuclear factor erythroid 2-related factor 2 (Nrf2) as a putative regulator of redox status in the kidneys of SAD mice investigating Nrf2-regulated antioxidant enzymes. Transgenic SAD mice and healthy C57Bl/6J mice were exposed to 4 h of hypoxia followed by various times of reoxygenation at ambient air (2 or 6 h). Regardless of the conditions (i.e. normoxia or H/R), SAD mice expressed higher renal oxidative stress levels. Nuclear Nrf2 protein expression decreased after 2 h post-hypoxia only in the medulla region of the kidney and only in SAD mice. Simultaneously, haem oxygenase transcripts were affected by H/R stimulus with a significant enhancement after 2 h post-hypoxia. Similarly, hypoxia inducible factor-1α staining increased after 2 h post-hypoxia in SAD mice in both cortex and medulla areas. Our data confirm that the kidneys are organs that are particularly sensitive to H/R stimuli in sickle cell SAD mice. Also, these results suggest an effect of the duration of recovery period (short vs. long) and specific responses according to kidney areas, medulla vs. cortex, on Nrf2 expression in response to H/R stimuli in SAD mice.
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Affiliation(s)
- Camille Faes
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France
| | - Gaëtan Juban
- Institut NeuroMyoGène CNRS UMR 5510, INSERM U1217, Univ Lyon - University Claude Bernard Lyon 1, Lyon, France
| | - Emeline Aufradet
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France
| | - Thibaut Desgeorges
- Institut NeuroMyoGène CNRS UMR 5510, INSERM U1217, Univ Lyon - University Claude Bernard Lyon 1, Lyon, France
| | - Emmanuelle Charrin
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France
| | - Philippe Connes
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France.,Institut Universitaire de France, Paris, France
| | - Pauline Mury
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France
| | - Alessandro Mattè
- Department of Medicine, University of Verona and AOUI-Verona, Verona, Italy
| | | | - Cyril Martin
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France
| | - Vincent Pialoux
- Interuniversity Laboratory of Human Movement Biology EA7424, Univ Lyon - University Claude Bernard Lyon 1, Villeurbanne, France.,Labex GR-Ex, Paris, France.,Institut Universitaire de France, Paris, France
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25
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Baechler BL, Bloemberg D, Quadrilatero J. Mitophagy regulates mitochondrial network signaling, oxidative stress, and apoptosis during myoblast differentiation. Autophagy 2019; 15:1606-1619. [PMID: 30859901 DOI: 10.1080/15548627.2019.1591672] [Citation(s) in RCA: 138] [Impact Index Per Article: 27.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Macroautophagy/autophagy is a degradative process essential for various cellular processes. We previously demonstrated that autophagy-deficiency causes myoblast apoptosis and impairs myotube formation. In this study, we continued this work with particular emphasis on mitochondrial remodelling and stress/apoptotic signaling. We found increased (p < 0.05) autophagic (e.g., altered LC3B levels, increased ATG7, decreased SQSTM1) and mitophagic (e.g., BNIP3 upregulation, mitochondrial localized GFP-LC3 puncta, and elevated mitochondrial LC3B-II) signaling during myoblast differentiation. shRNA-mediated knockdown of ATG7 (shAtg7) decreased these autophagic and mitophagic responses, while increasing CASP3 activity and ANXA5/annexin V staining in differentiating myoblasts; ultimately resulting in dramatically impaired myogenesis. Further confirming the importance of mitophagy in these responses, CRISPR-Cas9-mediated knockout of Bnip3 (bnip3-/-) resulted in increased CASP3 activity and DNA fragmentation as well as impaired myoblast differentiation. In addition, shAtg7 myoblasts displayed greater endoplasmic reticulum (e.g., increased CAPN activity and HSPA) and mitochondrial (e.g., mPTP formation, reduced mitochondrial membrane potential, elevated mitochondrial 4-HNE) stress. shAtg7 and bnip3-/- myoblasts also displayed altered mitochondria-associated signaling (e.g., PPARGC1A, DNM1L, OPA1) and protein content (e.g., SLC25A4, VDAC1, CYCS). Moreover, shAtg7 myoblasts displayed CYCS and AIFM1 release from mitochondria, and CASP9 activation. Similarly, bnip3-/- myoblasts had significantly higher CASP9 activation during differentiation. Importantly, administration of a chemical inhibitor of CASP9 (Ac-LEHD-CHO) or dominant-negative CASP9 (ad-DNCASP9) partially recovered differentiation and myogenesis in shAtg7 myoblasts. Together, these data demonstrate an essential role for autophagy in protecting myoblasts from mitochondrial oxidative stress and apoptotic signaling during differentiation, as well as in the regulation of mitochondrial network remodelling and myogenesis. Abbreviations: 3MA: 3-methyladenine; 4-HNE: 4-hydroxynonenal; ACT: actin; AIFM1/AIF: apoptosis-inducing factor, mitochondrion-associated 1; ANXA5: annexin V; ATG7: autophagy related 7; AU: arbitrary units; BAX: BCL2-associated X protein; BCL2: B cell leukemia/lymphoma 2; BECN1: beclin 1, autophagy related; BNIP3: BCL2/adenovirus E1B interacting protein 3; CAPN: calpain; CASP: caspase; CASP3: caspase 3; CASP8: caspase 8; CASP9: caspase 9; CASP12: caspase 12; CAT: catalase; CQ: chloroquine; CYCS: cytochrome c, somatic; DCF; 2',7'-dichlorofluorescein; DNM1L/DRP1: dynamin 1-like; DM: differentiation media; DMEM: Dulbecco's modified Eagle's medium; ER: endoplasmic reticulum; GAPDH: glyceraldehyde-3-phosphate dehydrogenase; GFP: green fluorescent protein; GM: growth media; p-H2AFX: phosphorylated H2A histone family, member X; H2BFM: H2B histone family, member M; HBSS: Hanks balanced salt solution; HSPA/HSP70: heat shock protein family A; JC-1: tetraethylbenzimidazolylcarbocyanine iodide; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; mPTP: mitochondrial permeability transition pore; MYH: myosin heavy chain; MYOG: myogenin; OPA1: OPA1, mitochondrial dynamin like GTPase; PI: propidium iodide; PINK1: PTEN induced putative kinase 1; PPARGC1A/PGC1α: peroxisome proliferative activated receptor, gamma, coactivator 1 alpha; ROS: reactive oxygen species; SLC25A4/ANT1: solute carrier family 25 (mitochondrial carrier, adenine nucleotide translocator), member 4; SOD1: superoxide dismutase 1, soluble; SOD2: superoxide dismutase 2, mitochondrial; SQSTM1/p62: sequestosome 1; VDAC1: voltage-dependent anion channel 1.
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Affiliation(s)
- Brittany L Baechler
- a Department of Kinesiology, University of Waterloo , Waterloo , Ontario , Canada
| | - Darin Bloemberg
- a Department of Kinesiology, University of Waterloo , Waterloo , Ontario , Canada
| | - Joe Quadrilatero
- a Department of Kinesiology, University of Waterloo , Waterloo , Ontario , Canada
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26
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Toms M, Burgoyne T, Tracey-White D, Richardson R, Dubis AM, Webster AR, Futter C, Moosajee M. Phagosomal and mitochondrial alterations in RPE may contribute to KCNJ13 retinopathy. Sci Rep 2019; 9:3793. [PMID: 30846767 PMCID: PMC6405871 DOI: 10.1038/s41598-019-40507-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2018] [Accepted: 02/18/2019] [Indexed: 12/29/2022] Open
Abstract
Mutations in KCNJ13 are associated with two retinal disorders; Leber congenital amaurosis (LCA) and snowflake vitreoretinal degeneration (SVD). We examined the retina of kcnj13 mutant zebrafish (obelixtd15, c.502T > C p.[Phe168Leu]) to provide new insights into the pathophysiology underlying these conditions. Detailed phenotyping of obelixtd15 fish revealed a late onset retinal degeneration at 12 months. Electron microscopy of the obelixtd15 retinal pigment epithelium (RPE) uncovered reduced phagosome clearance and increased mitochondrial number and size prior any signs of retinal degeneration. Melanosome distribution was also affected in dark-adapted 12-month obelixtd15 fish. At 6 and 12 months, ATP levels were found to be reduced along with increased expression of glial fibrillary acidic protein and heat shock protein 60. Quantitative RT-PCR of polg2, fis1, opa1, sod1/2 and bcl2a from isolated retina showed expression changes consistent with altered mitochondrial activity and retinal stress. We propose that the retinal disease in this model is primarily a failure of phagosome physiology with a secondary mitochondrial dysfunction. Our findings suggest that alterations in the RPE and photoreceptor cellular organelles may contribute to KCNJ13-related retinal degeneration and provide a therapeutic target.
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Affiliation(s)
- Maria Toms
- UCL Institute of Ophthalmology, London, UK
| | | | | | | | - Adam M Dubis
- UCL Institute of Ophthalmology, London, UK.,Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | - Andrew R Webster
- UCL Institute of Ophthalmology, London, UK.,Moorfields Eye Hospital NHS Foundation Trust, London, UK
| | | | - Mariya Moosajee
- UCL Institute of Ophthalmology, London, UK. .,Moorfields Eye Hospital NHS Foundation Trust, London, UK. .,Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK.
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27
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Kovacikova E, Kovacik A, Halenar M, Tokarova K, Chrastinova L, Ondruska L, Jurcik R, Kolesar E, Valuch J, Kolesarova A. Potential toxicity of cyanogenic glycoside amygdalin and bitter apricot seed in rabbits-Health status evaluation. J Anim Physiol Anim Nutr (Berl) 2019; 103:695-703. [PMID: 30698299 DOI: 10.1111/jpn.13055] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/26/2018] [Accepted: 12/17/2018] [Indexed: 12/20/2022]
Abstract
Amygdalin is one of the most studied secondary metabolites of Prunus genus. It is a cyanogenic glycoside which was initially obtained from the bitter almonds seeds and is a major component of the seeds of plants, such as apricots, almonds, peaches, apples and other rosaceous plants. The views of scientists on the use of amygdalin have been contradictory for many years, partly because toxicokinetics and metabolism of amygdalin still have not been adequately explored. The present in vivo study was designed to reveal whether pure amygdalin intramuscularly injected or apricot seeds oral consumption induce changes in overall health status of rabbit as a biological model. A total of 60 adult rabbits were randomly divided into five groups. The control group received no amygdalin while the two experimental groups E1 and E2 received a daily intramuscular injection of amygdalin at doses 0.6 and 3.0 mg/kg bw. The experimental groups E3 and E4 were fed crushed bitter apricot seeds (Prunus armeniaca L.), at doses 60 and 300 mg/kg bw, mixed with commercial feed for rabbits. Blood collection was carried out after 14 days. Biochemical, haematological and antioxidant enzymes activity analysis were performed and statistically evaluated. A short-term amygdalin administration had negligible impact on biochemical parameters-mainly level of urea, bilirubin, cholesterol. Haematological profile of rabbits was influenced very slightly-non-significant platelet count and platelet percentage increase, erythrocytes count and haemoglobin decrease. SOD activity of rabbits decreased significantly (p > 0.05) after apricot seeds consumption (102.3 U/ml) in comparison to control (117.4 U/ml). Differences might be connected to diverse metabolism by different administration routes and at the same time by the presence of other substances in apricot seeds (phytosterols, polyphenols, fatty acids). However, a short-term consumption had only slight effect on health status of rabbits and at recommended doses did not represent risk for their health.
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Affiliation(s)
- Eva Kovacikova
- AgroBioTech Research Centre, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Anton Kovacik
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Marek Halenar
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Katarina Tokarova
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Lubica Chrastinova
- Animal Production Research Centre Nitra, National Agricultural and Food Centre, Lužianky, Slovak Republic
| | - Lubomir Ondruska
- Animal Production Research Centre Nitra, National Agricultural and Food Centre, Lužianky, Slovak Republic
| | - Rastislav Jurcik
- Animal Production Research Centre Nitra, National Agricultural and Food Centre, Lužianky, Slovak Republic
| | - Eduard Kolesar
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
| | - Jozef Valuch
- Health Care Surveillance Authority, Bratislava, Slovak Republic
| | - Adriana Kolesarova
- Faculty of Biotechnology and Food Sciences, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic
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28
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Tseng C, Sinha K, Pan H, Cui Y, Guo P, Lin CY, Yang F, Deng Z, Eltzschig HK, Lu A, Huard J. Markers of Accelerated Skeletal Muscle Regenerative Response in Murphy Roths Large Mice: Characteristics of Muscle Progenitor Cells and Circulating Factors. Stem Cells 2019; 37:357-367. [PMID: 30537304 DOI: 10.1002/stem.2957] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 11/06/2018] [Accepted: 11/14/2018] [Indexed: 12/19/2022]
Abstract
The "super-healing" Murphy Roths Large (MRL/MpJ) mouse possesses a superior regenerative capacity for repair of many tissues, which makes it an excellent animal model for studying molecular and cellular mechanisms during tissue regeneration. As the role of muscle progenitor cells (MPCs) in muscle-healing capacity of MRL/MpJ mice has not been previously studied, we investigated the muscle regenerative capacity of MRL/MpJ mice following muscle injury, and the results were compared to results from C57BL/6J (B6) age-matched control mice. Our results show that muscle healing upon cardiotoxin injury was accelerated in MRL/MpJ mice and characterized by reduced necrotic muscle area, reduced macrophage infiltration, and more regenerated myofibers (embryonic myosin heavy chain+/centronucleated fibers) at 3, 5, and 12 days postinjury, when compared to B6 age-matched control mice. These observations were associated with enhanced function of MPCs, including improved cell proliferation, differentiation, and resistance to stress, as well as increased muscle regenerative potential when compared to B6 MPCs. Mass spectrometry of serum proteins revealed higher levels of circulating antioxidants in MRL/MpJ mice when compared to B6 mice. Indeed, we found relatively higher gene expression of superoxide dismutase 1 (Sod1) and catalase (Cat) in MRL/MpJ MPCs. Depletion of Sod1 or Cat by small interfering RNA impaired myogenic potential of MRL/MpJ MPCs, indicating a role for these antioxidants in muscle repair. Taken together, these findings provide evidence that improved function of MPCs and higher levels of circulating antioxidants play important roles in accelerating muscle-healing capacity of MRL/MpJ mice. Stem Cells 2019;37:357-367.
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Affiliation(s)
- Chieh Tseng
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Krishna Sinha
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Haiying Pan
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Yan Cui
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Ping Guo
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Chih Yi Lin
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Fan Yang
- Department of Traumatic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, People's Republic of China
| | - Zhenhan Deng
- Department of Sports Medicine, Shenzhen Second People's Hospital, Shenzhen, Guangzhou, People's Republic of China
| | - Holger K Eltzschig
- Department of Anesthesiology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Aiping Lu
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
| | - Johnny Huard
- Department of Orthopaedic Surgery, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA.,Center for Regenerative Sports Medicine, Steadman Philippon Research Institute, Vail, Colorado, USA
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29
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Tremblay-Laganière C, Garneau L, Mauger JF, Peshdary V, Atlas E, Nikolla AS, Chapados NA, Aguer C. Polychlorinated biphenyl 126 exposure in rats alters skeletal muscle mitochondrial function. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2019; 26:2375-2386. [PMID: 30467749 DOI: 10.1007/s11356-018-3738-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 11/12/2018] [Indexed: 05/20/2023]
Abstract
In the past few years, polychlorinated biphenyls (PCBs), a class of environmental pollutants, have been associated with metabolism dysregulation. Muscle is one of the key regulators of metabolism because of its mass and its important role in terms of glucose consumption and glucose storage. It has been shown that muscle alterations, such as oxidative stress and mitochondrial dysfunction, contribute significantly to the development of metabolic diseases. No study has yet investigated the toxicological effect of PCBs on muscle mitochondrial function and oxidative stress in vivo. The aim of this study was to assess the effect of PCB126 in vivo exposure (single dose of 1.05 μmol/kg) on muscle mitochondrial function and oxidative stress in rats. PCB126-treated rats showed a marked increase in Cyp1a1 mRNA levels in skeletal muscles in association with a 40% reduction in state 3 oxygen consumption rate measured with complex I substrates in permeabilized muscle fibers. Furthermore, PCB126 exposure altered the expression of some enzymes involved in ROS detoxification such as catalase and glutaredoxin 2. Our results highlight for the first time a toxic effect of coplanar PCBs on skeletal muscle mitochondrial function and oxidative stress. This suggests that acute PCB exposure, by affecting muscle metabolism, could contribute to the development of metabolic disorders. Studies are needed to determine if lower-level but longer-term PCB exposure exhibits the same effect.
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MESH Headings
- Animals
- Catalase/genetics
- Catalase/metabolism
- Cytochrome P-450 CYP1A1/genetics
- Cytochrome P-450 CYP1A1/metabolism
- Environmental Pollutants/toxicity
- Female
- Gene Expression Regulation, Enzymologic/drug effects
- Glutaredoxins/genetics
- Glutaredoxins/metabolism
- Inactivation, Metabolic/drug effects
- Inactivation, Metabolic/genetics
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/metabolism
- Muscle Fibers, Skeletal/drug effects
- Muscle Fibers, Skeletal/metabolism
- Muscle, Skeletal/drug effects
- Muscle, Skeletal/metabolism
- Oxidative Stress/drug effects
- Oxygen/metabolism
- Polychlorinated Biphenyls/toxicity
- Rats, Sprague-Dawley
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Affiliation(s)
- Camille Tremblay-Laganière
- Institut du Savoir Montfort - Recherche, 713 Montreal Rd, Ottawa, ON, K1K 0T2, Canada
- Faculty of Sciences, University of Ottawa, Ottawa, ON, K1N 6N5, Canada
| | - Léa Garneau
- Institut du Savoir Montfort - Recherche, 713 Montreal Rd, Ottawa, ON, K1K 0T2, Canada
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
| | - Jean-François Mauger
- Institut du Savoir Montfort - Recherche, 713 Montreal Rd, Ottawa, ON, K1K 0T2, Canada
| | - Vian Peshdary
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | - Ella Atlas
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, K1A 0K9, Canada
| | | | - Natalie Ann Chapados
- Institut du Savoir Montfort - Recherche, 713 Montreal Rd, Ottawa, ON, K1K 0T2, Canada
- Faculty of Health Sciences, School of Human Kinetics, University of Ottawa, Ottawa, ON, K1S 5N5, Canada
| | - Céline Aguer
- Institut du Savoir Montfort - Recherche, 713 Montreal Rd, Ottawa, ON, K1K 0T2, Canada.
- Faculty of Medicine, Biochemistry, Microbiology and Immunology Department, University of Ottawa, Ottawa, ON, K1H 8L1, Canada.
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30
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Zhao H, Wang Y, Shao Y, Liu J, Wang S, Xing M. Oxidative stress-induced skeletal muscle injury involves in NF-κB/p53-activated immunosuppression and apoptosis response in copper (II) or/and arsenite-exposed chicken. CHEMOSPHERE 2018; 210:76-84. [PMID: 29986226 DOI: 10.1016/j.chemosphere.2018.06.165] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2018] [Revised: 06/25/2018] [Accepted: 06/27/2018] [Indexed: 06/08/2023]
Abstract
The adverse effects of environmental toxicants such as copper and arsenic occur due to the generation of reactive oxygen species. Recent study also reported that both copper (Cu) and arsenic (As) may alter muscle regeneration. In order to assess the toxic effects of copper and arsenic on chicken skeletal muscle, chickens were subjected by different toxicologically relevant concentrations of copper or arsenic and their combination in diets for 12 weeks. Upon comparative analysis, a significantly higher malondialdehyde (MDA) and hydroxy radical content were observed in Cu or/and As exposed chicken skeletal muscle, which confirmed the strong lipid peroxidation nature of these two heavy metals. In addition, the depleted activity of catalase and glutathione peroxidase suggested the strong association of copper and arsenic with oxidative stress. Moreover, the higher elevation of pro-inflammatory mediators (NF-κB et al.) and Th1 bias immune system, suggested that exposure to Cu or/and As induces inflammation via NF-κB mediated response pathway. These results further coincided with inflammatory infiltration and nuclear condensation. Further, the execution of apoptosis machinery were characterized by a considerably elevated pro-apoptotic response and apoptotic index. In conclusion, the increased p53 levels detected in Cu or/and As treated chickens suggest the possibility that the NF-kB/p53 axis might lead to the impairment of immune-apoptosis cross talk in the present model.
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Affiliation(s)
- Hongjing Zhao
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China
| | - Yu Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China
| | - Yizhi Shao
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China
| | - Juanjuan Liu
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China
| | - Sirui Wang
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China.
| | - Mingwei Xing
- College of Wildlife Resources, Northeast Forestry University, Harbin, 150040, Heilongjiang Province, China.
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Copper or/and arsenic induces autophagy by oxidative stress-related PI3K/AKT/mTOR pathways and cascaded mitochondrial fission in chicken skeletal muscle. J Inorg Biochem 2018; 188:1-8. [DOI: 10.1016/j.jinorgbio.2018.08.001] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 07/21/2018] [Accepted: 08/01/2018] [Indexed: 12/23/2022]
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Hughes DL, Richards RS, Lexis LA. Using chemiluminescence to determine whole blood antioxidant capacity in rheumatoid arthritis and Parkinson's disease patients. LUMINESCENCE 2018; 33:764-770. [PMID: 29644790 DOI: 10.1002/bio.3474] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/29/2018] [Accepted: 02/08/2018] [Indexed: 01/03/2023]
Abstract
The consequences of oxidative stress and inflammation are implicated in a wide range of diseases, including rheumatoid arthritis and Parkinson's disease. The status of antioxidant capacity in rheumatoid arthritis and Parkinson's disease remains unclear, in part due to common practice of assaying erythrocytes separately to plasma. This method removes any synergistic interactions between plasma and erythrocyte-based antioxidants. The experiments in this report tested antioxidant capacity in whole blood, erythrocytes and plasma by group and disease stage. Medically diagnosed patients were recruited along with appropriate control group participants. Fasting venous blood was assayed using chemiluminescence methods for: time to maximum light emitted, maximum light emitted, and plasma antioxidant capacity in vitamin E analogue units. Here we demonstrate that whole blood exhibits higher antioxidant capacity than either plasma or erythrocytes assayed separately. We report increased oxidative stress in the blood of rheumatoid arthritis patients by group (p = 0.018, p = 0.049). We show increased antioxidant capacity in Parkinson's disease patients by group (p < 0.001). For later stage Parkinson's disease patients, we report reduced oxidative stress (p = 0.025), and increased antioxidant capacity and for erythrocytes (p < 0.001, p = 0.004) and whole blood (p < 0.001, p = 0.003). Early stage Parkinson's disease showed higher antioxidant capacity on only one measure (p = 0.008). Whole blood chemiluminescence is a useful technique for determining redox status in disease and might help clarify the role of oxidative stress in rheumatoid arthritis and Parkinson's disease.
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Affiliation(s)
- Diane L Hughes
- Department of Pharmacy and Applied Science, School of Molecular Sciences, College of Science, Health and Engineering, La Trobe University, Bedigo, Victoria, Australia
| | - Ross S Richards
- School of Community Health, Faculty of Science, Charles Sturt University, Albury-Wodonga, New South Wales, Australia
| | - Louise A Lexis
- Department of Physiology, Anatomy and Microbiology, School of Life Sciences, College of Science, Health and Engineering, La Trobe University, Bundoora, Victoria, Australia
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Sharma M, Afolayan AJ. Redox Signaling and Persistent Pulmonary Hypertension of the Newborn. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 967:277-287. [PMID: 29047092 DOI: 10.1007/978-3-319-63245-2_16] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Reactive oxygen species (ROS) are redox-signaling molecules that are critically involved in regulating endothelial cell functions, host defense, aging, and cellular adaptation. Mitochondria are the major sources of ROS and important sources of redox signaling in pulmonary circulation. It is becoming increasingly evident that increased mitochondrial oxidative stress and aberrant signaling through redox-sensitive pathways play a direct causative role in the pathogenesis of many cardiopulmonary disorders including persistent pulmonary hypertension of the newborn (PPHN). This chapter highlights redox signaling in endothelial cells, antioxidant defense mechanism, cell responses to oxidative stress, and their contributions to disease pathogenesis.
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Affiliation(s)
- Megha Sharma
- Assistant Professor of Pediatrics, 999 N92nd Street, CCC suite 410, Milwaukee, WI, 53226, USA
| | - Adeleye J Afolayan
- Assistant Professor of Pediatrics, 999 N92nd Street, CCC suite 410, Milwaukee, WI, 53226, USA.
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Zajączkowski S, Ziółkowski W, Badtke P, Zajączkowski MA, Flis DJ, Figarski A, Smolińska-Bylańska M, Wierzba TH. Promising effects of xanthine oxidase inhibition by allopurinol on autonomic heart regulation estimated by heart rate variability (HRV) analysis in rats exposed to hypoxia and hyperoxia. PLoS One 2018; 13:e0192781. [PMID: 29432445 PMCID: PMC5809044 DOI: 10.1371/journal.pone.0192781] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Accepted: 01/30/2018] [Indexed: 12/31/2022] Open
Abstract
Background It has long been suggested that reactive oxygen species (ROS) play a role in oxygen sensing via peripheral chemoreceptors, which would imply their involvement in chemoreflex activation and autonomic regulation of heart rate. We hypothesize that antioxidant affect neurogenic cardiovascular regulation through activation of chemoreflex which results in increased control of sympathetic mechanism regulating heart rhythm. Activity of xanthine oxidase (XO), which is among the major endogenous sources of ROS in the rat has been shown to increase during hypoxia promote oxidative stress. However, the mechanism of how XO inhibition affects neurogenic regulation of heart rhythm is still unclear. Aim The study aimed to evaluate effects of allopurinol-driven inhibition of XO on autonomic heart regulation in rats exposed to hypoxia followed by hyperoxia, using heart rate variability (HRV) analysis. Material and methods 16 conscious male Wistar rats (350 g): control-untreated (N = 8) and pretreated with Allopurinol-XO inhibitor (5 mg/kg, followed by 50 mg/kg), administered intraperitoneally (N = 8), were exposed to controlled hypobaric hypoxia (1h) in order to activate chemoreflex. The treatment was followed by 1h hyperoxia (chemoreflex suppression). Time-series of 1024 RR-intervals were extracted from 4kHz ECG recording for heart rate variability (HRV) analysis in order to calculate the following time-domain parameters: mean RR interval (RRi), SDNN (standard deviation of all normal NN intervals), rMSSD (square root of the mean of the squares of differences between adjacent NN intervals), frequency-domain parameters (FFT method): TSP (total spectral power) as well as low and high frequency band powers (LF and HF). At the end of experiment we used rat plasma to evaluate enzymatic activity of XO and markers of oxidative stress: protein carbonyl group and 8-isoprostane concentrations. Enzymatic activity of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPx) were measures in erythrocyte lysates. Results Allopurinol reduced oxidative stress which was the result of hypoxia/hyperoxia, as shown by decreased 8-isoprostane plasma concentration. XO inhibition did not markedly influence HRV parameters in standard normoxia. However, during hypoxia, as well as hyperoxia, allopurinol administration resulted in a significant increase of autonomic control upon the heart as shown by increased SDNN and TSP, with an increased vagal contribution (increased rMSSD and HF), whereas sympathovagal indexes (LF/HF, SDNN/rMSSD) remained unchanged. Conclusions Observed regulatory effects of XO inhibition did not confirm preliminary hypothesis which suggested that an antioxidant such as allopurinol might activate chemoreflex resulting in augmented sympathetic discharge to the heart. The HRV regulatory profile of XO inhibition observed during hypoxia as well as post-hypoxic hyperoxia corresponds to reported reduced risk of sudden cardiovascular events. Therefore our data provide a new argument for therapeutical use of allopurinol in hypoxic conditions.
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Affiliation(s)
| | - Wiesław Ziółkowski
- Department of Bioenergetics and Nutrition, Faculty of Rehabilitation and Kinesiology, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Piotr Badtke
- Department of Physiology, Medical University of Gdansk, Gdansk, Poland
| | | | - Damian J. Flis
- Department of Bioenergetics and Nutrition, Faculty of Rehabilitation and Kinesiology, Gdansk University of Physical Education and Sport, Gdansk, Poland
| | - Adam Figarski
- Department of Medical Chemistry, Medical University of Gdansk, Gdansk, Poland
| | | | - Tomasz H. Wierzba
- Department of Physiology, Medical University of Gdansk, Gdansk, Poland
- * E-mail:
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Partial involvement of Nrf2 in skeletal muscle mitohormesis as an adaptive response to mitochondrial uncoupling. Sci Rep 2018; 8:2446. [PMID: 29402993 PMCID: PMC5799251 DOI: 10.1038/s41598-018-20901-4] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Accepted: 01/26/2018] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial dysfunction is usually associated with various metabolic disorders and ageing. However, salutary effects in response to mild mitochondrial perturbations have been reported in multiple organisms, whereas molecular regulators of cell-autonomous stress responses remain elusive. We addressed this question by asking whether the nuclear factor erythroid-derived-like 2 (Nrf2), a transcription factor and master regulator of cellular redox status is involved in adaptive physiological responses including muscle mitohormesis. Using a transgenic mouse model with skeletal muscle-specific mitochondrial uncoupling and oxidative phosphorylation (OXPHOS) inefficiency (UCP1-transgenic, TG) we show that additional genetic ablation of Nrf2 abolishes an adaptive muscle NAD(P)H quinone dehydrogenase 1 (NQO1) and catalase induction. Deficiency of Nrf2 also leads to decreased mitochondrial respiratory performance although muscle functional integrity, fiber-type profile and mitochondrial biogenesis were not significantly altered. Importantly, Nrf2 ablation did not abolish the induction of key genes and proteins of muscle integrated stress response including the serine, one-carbon cycle, and glycine synthesis (SOG) pathway in TG mice while further increasing glutathione peroxidase (GPX) activity linked to increased GPX1 protein levels. Conclusively, our results tune down the functions controlled by Nrf2 in muscle mitohormesis and oxidative stress defense during mitochondrial OXPHOS inefficiency.
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Haramizu S, Asano S, Butler DC, Stanton DA, Hajira A, Mohamed JS, Alway SE. Dietary resveratrol confers apoptotic resistance to oxidative stress in myoblasts. J Nutr Biochem 2017; 50:103-115. [PMID: 29053994 PMCID: PMC5694367 DOI: 10.1016/j.jnutbio.2017.08.008] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2016] [Revised: 01/14/2017] [Accepted: 08/17/2017] [Indexed: 11/18/2022]
Abstract
High levels of reactive oxygen species (ROS) contribute to muscle cell death in aging and disuse. We have previously found that resveratrol can reduce oxidative stress in response to aging and hindlimb unloading in rodents in vivo, but it was not known if resveratrol would protect muscle stem cells during repair or regeneration when oxidative stress is high. To test the protective role of resveratrol on muscle stem cells directly, we treated the C2C12 mouse myoblast cell line with moderate (100 μM) or very high (1 mM) levels of H2O2 in the presence or absence of resveratrol. The p21 promoter activity declined in myoblasts in response to high ROS, and this was accompanied a greater nuclear to cytoplasmic translocation of p21 in a dose-dependent matter in myoblasts as compared to myotubes. Apoptosis, as indicated by TdT-mediated dUTP nick-end labeling, was greater in C2C12 myoblasts as compared to myotubes (P<.05) after treatment with H2O2. Caspase-9, -8 and -3 activities were elevated significantly (P<.05) in myoblasts treated with H2O2. Myoblasts were more susceptible to ROS-induced oxidative stress than myotubes. We treated C2C12 myoblasts with 50 μM of resveratrol for periods up to 48 h to determine if myoblasts could be rescued from high-ROS-induced apoptosis by resveratrol. Resveratrol reduced the apoptotic index and significantly reduced the ROS-induced caspase-9, -8 and -3 activity in myoblasts. Furthermore, Bcl-2 and the Bax/Bcl-2 ratio were partially rescued in myoblasts by resveratrol treatment. Similarly, muscle stem cells isolated from mouse skeletal muscles showed reduced Sirt1 protein abundance with H2O2 treatment, but this could be reversed by resveratrol. Reduced apoptotic susceptibility in myoblasts as compared to myotubes to ROS is regulated, at least in part, by enhanced p21 promoter activity and nuclear p21 location in myotubes. Resveratrol confers further protection against ROS by improving Sirt1 levels and increasing antioxidant production, which reduces mitochondrial associated apoptotic signaling, and cell death in myoblasts.
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Affiliation(s)
- Satoshi Haramizu
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - Shinichi Asano
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - David C Butler
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - David A Stanton
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - Ameena Hajira
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - Junaith S Mohamed
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV
| | - Stephen E Alway
- Laboratory of Muscle Biology and Sarcopenia, Dept. Exercise Physiology, West Virginia University School of Medicine, Morgantown, WV.
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Jiang J, Tang X, Xue Y, Lin G, Xiong YL. Dietary linseed oil supplemented with organic selenium improved the fatty acid nutritional profile, muscular selenium deposition, water retention, and tenderness of fresh pork. Meat Sci 2017; 131:99-106. [DOI: 10.1016/j.meatsci.2017.03.014] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Revised: 12/21/2016] [Indexed: 12/01/2022]
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Le Moal E, Pialoux V, Juban G, Groussard C, Zouhal H, Chazaud B, Mounier R. Redox Control of Skeletal Muscle Regeneration. Antioxid Redox Signal 2017; 27:276-310. [PMID: 28027662 PMCID: PMC5685069 DOI: 10.1089/ars.2016.6782] [Citation(s) in RCA: 122] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Revised: 12/24/2016] [Accepted: 12/27/2016] [Indexed: 12/12/2022]
Abstract
Skeletal muscle shows high plasticity in response to external demand. Moreover, adult skeletal muscle is capable of complete regeneration after injury, due to the properties of muscle stem cells (MuSCs), the satellite cells, which follow a tightly regulated myogenic program to generate both new myofibers and new MuSCs for further needs. Although reactive oxygen species (ROS) and reactive nitrogen species (RNS) have long been associated with skeletal muscle physiology, their implication in the cell and molecular processes at work during muscle regeneration is more recent. This review focuses on redox regulation during skeletal muscle regeneration. An overview of the basics of ROS/RNS and antioxidant chemistry and biology occurring in skeletal muscle is first provided. Then, the comprehensive knowledge on redox regulation of MuSCs and their surrounding cell partners (macrophages, endothelial cells) during skeletal muscle regeneration is presented in normal muscle and in specific physiological (exercise-induced muscle damage, aging) and pathological (muscular dystrophies) contexts. Recent advances in the comprehension of these processes has led to the development of therapeutic assays using antioxidant supplementation, which result in inconsistent efficiency, underlying the need for new tools that are aimed at precisely deciphering and targeting ROS networks. This review should provide an overall insight of the redox regulation of skeletal muscle regeneration while highlighting the limits of the use of nonspecific antioxidants to improve muscle function. Antioxid. Redox Signal. 27, 276-310.
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Affiliation(s)
- Emmeran Le Moal
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, INSERM U1217, CNRS UMR 5310, Villeurbanne, France
- Movement, Sport and Health Sciences Laboratory, M2S, EA1274, University of Rennes 2, Bruz, France
| | - Vincent Pialoux
- Laboratoire Interuniversitaire de Biologie de la Motricité, EA7424, Université Claude Bernard Lyon 1, Univ Lyon, Villeurbanne, France
- Institut Universitaire de France, Paris, France
| | - Gaëtan Juban
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, INSERM U1217, CNRS UMR 5310, Villeurbanne, France
| | - Carole Groussard
- Movement, Sport and Health Sciences Laboratory, M2S, EA1274, University of Rennes 2, Bruz, France
| | - Hassane Zouhal
- Movement, Sport and Health Sciences Laboratory, M2S, EA1274, University of Rennes 2, Bruz, France
| | - Bénédicte Chazaud
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, INSERM U1217, CNRS UMR 5310, Villeurbanne, France
| | - Rémi Mounier
- Institut NeuroMyoGène, Université Claude Bernard Lyon 1, INSERM U1217, CNRS UMR 5310, Villeurbanne, France
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Platelets redox balance assessment: Current evidence and methodological considerations. Vascul Pharmacol 2017; 93-95:6-13. [DOI: 10.1016/j.vph.2017.06.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 05/10/2017] [Accepted: 06/28/2017] [Indexed: 01/22/2023]
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40
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Chen Y, Huang X, Wang J, Li C. Effect of pure microcystin-LR on activity and transcript level of immune-related enzymes in the white shrimp (Litopenaeus vannamei). ECOTOXICOLOGY (LONDON, ENGLAND) 2017; 26:702-710. [PMID: 28466205 DOI: 10.1007/s10646-017-1802-7] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 04/01/2017] [Indexed: 06/07/2023]
Abstract
Microcystins (MCs) in freshwater and marine waters released by toxin-producing cyanobacteria have negative impacts to the aquatic environment. This study aimed to investigate the effect of pure microcystin-LR on activity and transcript level of immune-related enzymes in the white shrimp Litopenaeus vannamei. After exposed to varying concentrations of pure microcystin-LR (MC-LR) for 30 days, the activity of superoxide dismutase (SOD), lysozyme (LZM), glutathione peroxidase (GPx), peroxidase (POD), acid phosphatase (ACP), alkaline phosphatase (AKP) and transcript level of cMn-sod, lzm, gpx were investigated in the hepatopancreas of white shrimp (L. vannamei). Immune-related enzyme activities responded differently to MC-LR exposure. SOD, GPx, and POD activity in the hepatopancreas were activated in a concentration-dependent manner while LZM activity was significantly inhibited in the treatment groups. ACP and AKP activity showed an increase, followed by a decrease. The transcript levels of cMn-sod, lzm, and gpx were consistent with changes in their encoding enzyme activity. These results demonstrated that sub-chronical exposure to MC-LR induced the alteration of immune-related enzymes and corresponding genes in the hepatopancreas, which may help explain the presence of detoxification mechanisms in crustaceans and how they were protected from MC-LR stress for a long period of time.
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Affiliation(s)
- Yanyan Chen
- Department of Aquaculture, Fishery College, Guangdong Ocean University, East Huguangyan, Mazhang District, Zhanjiang, Guangdong, 524088, China
- Engineering Technology Research Center for Algae Breeding and Application, Zhanjiang, Guangdong, 524088, China
- Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, 518108, China
| | - Xianghu Huang
- Department of Aquaculture, Fishery College, Guangdong Ocean University, East Huguangyan, Mazhang District, Zhanjiang, Guangdong, 524088, China.
- Engineering Technology Research Center for Algae Breeding and Application, Zhanjiang, Guangdong, 524088, China.
- Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, 518108, China.
| | - Jianzhu Wang
- Collaborative Innovation Center for Geo-hazards and Eco-environment in Three Gorges Area, Hubei Province, The Three Gorges University, Yichang, 443002, China
| | - Changling Li
- Department of Aquaculture, Fishery College, Guangdong Ocean University, East Huguangyan, Mazhang District, Zhanjiang, Guangdong, 524088, China
- Engineering Technology Research Center for Algae Breeding and Application, Zhanjiang, Guangdong, 524088, China
- Shenzhen Research Institute of Guangdong Ocean University, Shenzhen, 518108, China
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Cytoprotective propensity of green tea polyphenols against citrinin-induced skeletal-myotube damage in C2C12 cells. Cytotechnology 2017; 69:681-697. [PMID: 28536872 DOI: 10.1007/s10616-017-0077-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Accepted: 03/02/2017] [Indexed: 01/08/2023] Open
Abstract
The mycotoxin citrinin, is produced by several species of Penicillium, Aspergillus and Monascus, and is capable of inducing cytotoxicity, oxidative stress and apoptosis. The aim of the present study was to investigate the effect of citrinin in mouse skeletal muscle cells (C2C12) and to overcome the cellular adverse effects by supplementing green tea extract (GTE) rich in polyphenols. C2C12 myoblasts were differentiated to myotubes and were exposed to citrinin in a dose dependent manner (0-100 µM) for 24 h and IC50 value was found to be 100 µM that resulted in decreased cell viability, increased LDH leakage and compromised membrane integrity. Mitochondrial membrane potential loss, increased accumulation of intracellular ROS and sub G1 phase of cell cycle was observed. To ameliorate the cytotoxic effects of CTN, C2C12 cells were pretreated with GTE (20, 40, 80 µg/ml) for 2 h followed by citrinin (100 µM) treatment for 24 h. GTE pretreatment combated citrinin-induced cytotoxicity and oxidative stress. GTE at 40 and 80 µg/ml significantly promoted cell survival and upregulated antioxidant enzyme activities (CAT, SOD, GPx) and endogenous antioxidant GSH, while the gene and protein expression levels were significantly restored through its effective antioxidant mechanism. Present study results suggested the antioxidant properties of GTE as a herbal source in ameliorating the citrinin-induced oxidative stress.
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Vieira GDLT, Lossie AC, Lay DC, Radcliffe JS, Garner JP. Preventing, treating, and predicting barbering: A fundamental role for biomarkers of oxidative stress in a mouse model of Trichotillomania. PLoS One 2017; 12:e0175222. [PMID: 28426681 PMCID: PMC5398524 DOI: 10.1371/journal.pone.0175222] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Accepted: 03/22/2017] [Indexed: 01/08/2023] Open
Abstract
Barbering, where a “barber” mouse plucks hair from its cagemates or itself, is both a spontaneously occurring abnormal behavior in mice and a well validated model of Trichotillomania (TTM). N-Acetylcysteine, (NAC) a cysteine derived food additive, is remarkably effective in treating TTM patients, but its mechanism of action is unknown. Reactive Oxygen Species (ROS), also known as free radicals, form as a natural byproduct of the normal metabolism of oxygen. Under normal circumstances, cells are able to defend themselves against ROS damage with antioxidant pathways. NAC is the precursor to the main antioxidant produced to defend the brain. Therefore, we hypothesized that barbering is a disease of oxidative stress, whereby ROS and/or a failure of antioxidant defenses leads to neuronal damage that induces barbering in susceptible animals. We tested this hypothesis in 32 female C57BL/6J mice by treating half with 1g/kg BW/day of NAC in their diet, and testing for protection against developing barbering behavior and curing of barbering behavior, and simultaneously testing for a panel of biomarkers of oxidative stress. NAC reduced the chance that mice would be barbers, and this effect did not differ between healthy (i.e. prevention) and affected animals (i.e. cure). Barbering animals had elevated urinary antioxidant capacity, indicative of oxidative stress, at all timepoints. Additionally, after treatment the risk of barbering increased with decreasing hydroxy-2′-deoxyguanosine (8-OHdG) levels, and with increasing glutathione (GSH) and oxidized glutathione (GSSG) levels, further indicating that barbering mice were under oxidative stress regardless of treatment with NAC. We did not find compelling evidence that urinary total antioxidant capacity, or urinary 8-OHdG, could predict response to NAC treatment. We conclude that NAC is effective in preventing and/or curing barbering at least in part by promoting GSH synthesis, thereby preventing oxidative damage.
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Affiliation(s)
- Giovana de L. T. Vieira
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, United States of America
| | - Amy C. Lossie
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, United States of America
| | - Donald C. Lay
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, United States of America
- Livestock Behavior Research Unit, Agricultural Research Service, United States Department of Agriculture, West Lafayette, Indiana, United States of America
| | - John S. Radcliffe
- Department of Animal Sciences, Purdue University, West Lafayette, Indiana, United States of America
| | - Joseph P. Garner
- Department of Comparative Medicine, Stanford University, Stanford, California, United States of America
- (By Courtesy) Department of Psychiatry and Behavioral Sciences, Stanford University, Stanford, California, United States of America
- * E-mail:
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Abstract
Oxidative stress is an imbalance of the oxidant-to-antioxidant ratio in the body. Increases in oxidative stress and changes in antioxidant status have been shown during endurance and intense exercise and eventing competition in horses. Antioxidants include vitamins, minerals, enzymes, and proteins that must be synthesized in the body or obtained from the diet. Therefore, exercise level and diet are both factors that play a role in influencing the oxidative stress and antioxidant status of the equine athlete. Along with exercise intensity and duration, diet, age, and training program can also affect oxidative stress in the horse. Several studies using exogenous supplementation of vitamin E, vitamin C, and alpha-lipoic acid have shown positive results in decreasing the effects of exercise (endurance and intense exercise)-induced oxidative stress and increasing the antioxidant status based on the markers and antioxidants measured, whereas other studies using superoxide dismutase showed little effects on the exercise horse. The "free radical theory of aging" states that long-term effects of the degenerative changes associated with aging may induce oxidative stress. However, in old horses (22 ± 2 yr), lipid peroxidation levels and blood antioxidant concentrations were similar to those found in younger but mature (12 ± 2 yr) horses both at rest and during exercise. Other studies found that yearlings (18 ± 2.4 mo) that are novel to forced exercise had less lipid peroxidation and greater antioxidant status than mature mares (13 ± 2.1 yr) prior to exercise training. Exercise training reduced oxidative stress markers and improved antioxidant status in mares, whereas few effects were seen in yearlings. This indicates that youth provided more defense against oxidative stress due to exercise than the exercise training program. Other studies during competition (endurance, jumping, eventing, and racing) have investigated the influence on oxidative stress with varying results. Despite the multitude of studies examining the levels of lipid peroxidation, antioxidant status, and other related metabolites in the horse during exercise, we still have a long way to go before we fully understand the large variation in results both with and without antioxidant supplementation.
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Tocotrienol-Rich Fraction Ameliorates Antioxidant Defense Mechanisms and Improves Replicative Senescence-Associated Oxidative Stress in Human Myoblasts. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2017; 2017:3868305. [PMID: 28243354 PMCID: PMC5294752 DOI: 10.1155/2017/3868305] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/22/2016] [Accepted: 12/18/2016] [Indexed: 12/16/2022]
Abstract
During aging, oxidative stress affects the normal function of satellite cells, with consequent regeneration defects that lead to sarcopenia. This study aimed to evaluate tocotrienol-rich fraction (TRF) modulation in reestablishing the oxidative status of myoblasts during replicative senescence and to compare the effects of TRF with other antioxidants (α-tocopherol (ATF) and N-acetyl-cysteine (NAC)). Primary human myoblasts were cultured to young, presenescent, and senescent phases. The cells were treated with antioxidants for 24 h, followed by the assessment of free radical generation, lipid peroxidation, antioxidant enzyme mRNA expression and activities, and the ratio of reduced to oxidized glutathione. Our data showed that replicative senescence increased reactive oxygen species (ROS) generation and lipid peroxidation in myoblasts. Treatment with TRF significantly diminished ROS production and decreased lipid peroxidation in senescent myoblasts. Moreover, the gene expression of superoxide dismutase (SOD2), catalase (CAT), and glutathione peroxidase (GPX1) was modulated by TRF treatment, with increased activity of superoxide dismutase and catalase and reduced glutathione peroxidase in senescent myoblasts. In comparison to ATF and NAC, TRF was more efficient in heightening the antioxidant capacity and reducing free radical insults. These results suggested that TRF is able to ameliorate antioxidant defense mechanisms and improves replicative senescence-associated oxidative stress in myoblasts.
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High concentration of vitamin E supplementation in sow diet during the last week of gestation and lactation affects the immunological variables and antioxidative parameters in piglets. J DAIRY RES 2016; 84:8-13. [PMID: 27834154 DOI: 10.1017/s0022029916000650] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An experiment was conducted to investigate the effects of a high concentration of vitamin E supplementation in sow diet during the last week of gestation and lactation on the performance, milk composition, and vital immunological variables and antioxidative parameters in sows and piglets. The experiment started on day 107 of gestation and lasted until the piglets were weaned on day 21 of lactation. 48 sows were divided into two groups and fed either a basal diet with 44 IU/kg of vitamin E or a basal diet supplemented with additional vitamin E, total content of 250 IU/kg. Sow milk and blood samples were obtained on day 0 (farrowing) and on day 21 of lactation. One 21-day-old piglet per litter was selected to collect plasma. Results showed that supplementation of the maternal diet with 250 IU/kg vitamin E improved the average daily gain (ADG) and weaning weight of piglets (P < 0·05), and the concentrations of immunoglobulin G (IgG) and immunoglobulin A (IgA) in sow plasma, colostrum and milk. The concentrations of fat in the colostrum and milk were significantly increased by supplementation with 250 IU/kg of vitamin E (P < 0·05). The level of plasma IgG, IgA, total antioxidant capacity (T-AOC) and catalase (CAT) were all higher (P < 0·05) in piglets from sows that were fed 250 IU/kg of vitamin E than in those from the control group. The high concentration of vitamin E supplementation to the sows enhanced the concentrations of α-tocopherol in the sow milk and plasma as well as piglet plasma (P < 0·05). In conclusion, the addition to the maternal diet of vitamin E at high concentration improved the weight of piglets at weaning, and enhanced humoral immune function and antioxidant activity in sows and piglets.
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Badgujar PC, Chandratre GA, Pawar NN, Telang AG, Kurade NP. Fipronil induced oxidative stress involves alterations in SOD1 and catalase gene expression in male mice liver: Protection by vitamins E and C. ENVIRONMENTAL TOXICOLOGY 2016; 31:1147-1158. [PMID: 25721553 DOI: 10.1002/tox.22125] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2014] [Revised: 01/22/2015] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
In the present investigation, hepatic oxidative stress induced by fipronil was evaluated in male mice. We also investigated whether pretreatment with antioxidant vitamins E and C could protect mice against these effects. Several studies conducted in cell lines have shown fipronil as a potent oxidant; however, no information is available regarding its oxidative stress inducing potential in an animal model. Out of 8 mice groups, fipronil was administered to three groups at low, medium, and high dose based on its oral LD50 (2.5, 5, and 10 mg/kg). All three doses of fipronil caused a significant increase in the serum aspartate aminotransferase (AST) and alanine aminotransferase (ALT) level with concomitant increase in the absolute and relative weight of liver. High dose of fipronil caused significant down-regulation in the hepatic mRNA expression of superoxide dismutase 1 (SOD1) and catalase (0.412 ± 0.01 and 0.376 ± 0.05-fold, respectively) as well as an increase in the lipid peroxidation (LPO). Also, decrease in the activity of antioxidant enzymes; SOD, catalase, and glutathione-S-transferase (GST) and the content of nonantioxidant enzymes; glutathione and total thiol were recorded. Histopathological examination of liver revealed dose dependant changes such as severe fatty degeneration and vacuolation leading to hepatocellular necrosis. Prior administration of vitamin E or vitamin C against fipronil high dose caused decrease in lipid peroxidation and increased activity of antioxidant enzymes. Severe reduction observed in functional activities of antioxidant enzymes was aptly substantiated by down-regulation seen in their relative mRNA expression. Thus results of the present study imply that liver is an important target organ for fipronil and similar to in vitro reports, it induces oxidative stress in the mice liver, which in turn could be responsible for its hepatotoxic nature. © 2015 Wiley Periodicals, Inc. Environ Toxicol 31: 1147-1158, 2016.
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Affiliation(s)
- Prarabdh C Badgujar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Gauri A Chandratre
- Division of Pathology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - Nitin N Pawar
- Division of Pharmacology and Toxicology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - A G Telang
- Toxicology Laboratory, Centre for Animal Disease Research and Diagnosis, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
| | - N P Kurade
- Division of Pathology, Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh, 243 122, India
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Santa-Gonzalez GA, Gomez-Molina A, Arcos-Burgos M, Meyer JN, Camargo M. Distinctive adaptive response to repeated exposure to hydrogen peroxide associated with upregulation of DNA repair genes and cell cycle arrest. Redox Biol 2016; 9:124-133. [PMID: 27479053 PMCID: PMC4971155 DOI: 10.1016/j.redox.2016.07.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 07/12/2016] [Accepted: 07/14/2016] [Indexed: 01/11/2023] Open
Abstract
Many environmental and physiological stresses are chronic. Thus, cells are constantly exposed to diverse types of genotoxic insults that challenge genome stability, including those that induce oxidative DNA damage. However, most in vitro studies that model cellular response to oxidative stressors employ short exposures and/or acute stress models. In this study, we tested the hypothesis that chronic and repeated exposure to a micromolar concentration of hydrogen peroxide (H2O2) could activate DNA damage responses, resulting in cellular adaptations. For this purpose, we developed an in vitro model in which we incubated mouse myoblast cells with a steady concentration of ~50 μM H2O2 for one hour daily for seven days, followed by a final challenge of a 10 or 20X higher dose of H2O2 (0.5 or 1 mM). We report that intermittent long-term exposure to this oxidative stimulus nearly eliminated cell toxicity and significantly decreased genotoxicity (in particular, a >5-fold decreased in double-strand breaks) resulting from subsequent acute exposure to oxidative stress. This protection was associated with cell cycle arrest in G2/M and induction of expression of nine DNA repair genes. Together, this evidence supports an adaptive response to chronic, low-level oxidative stress that results in genomic protection and up-regulated maintenance of cellular homeostasis. Repetitive stimulus with subtoxic H2O2 resulted in cellular adaptive response. Cells responded by abridged cytotoxicity and reduced intracellular ROS. Adaptive response mitigated the genotoxicity of acute oxidative insults. Adaption induced overexpression of selected genes of the BER, NER, MMR pathways. Chronic and repetitive H2O2 resulted in cell cycle checkpoint arrest.
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Affiliation(s)
- Gloria A Santa-Gonzalez
- University Research Center and Biology Institute, Genetics, Regeneration and Cancer Laboratory, SIU Lab 432, Universidad de Antioquia, Medellin, Colombia
| | - Andrea Gomez-Molina
- University Research Center and Biology Institute, Genetics, Regeneration and Cancer Laboratory, SIU Lab 432, Universidad de Antioquia, Medellin, Colombia
| | - Mauricio Arcos-Burgos
- Genome Biology Department, John Curtin School of Medical Research, The Australian National University, Canberra, ACT, Australia
| | - Joel N Meyer
- Nicholas School of the Environment, Duke University, Durham, NC 27708-0328, USA
| | - Mauricio Camargo
- University Research Center and Biology Institute, Genetics, Regeneration and Cancer Laboratory, SIU Lab 432, Universidad de Antioquia, Medellin, Colombia.
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Di Nunzio M, Valli V, Bordoni A. PUFA and oxidative stress. Differential modulation of the cell response by DHA. Int J Food Sci Nutr 2016; 67:834-43. [PMID: 27353954 DOI: 10.1080/09637486.2016.1201790] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Although an increased dietary intake of long-chain n-3 PUFA is considered an effective preventive strategy, a theoretical concern related to the possible increase of lipid peroxidation induced by a PUFA-rich diet still remains a problem. In this study, the effects of different PUFA (linoleic, α-linolenic, arachidonic, eicosapentaenoic and docosahexaenoic acid) on cytotoxicity, lipid oxidation, and modulation of antioxidant defenses were evaluated in HepG2 cells submitted to an oxidative stress (H2O2). Results clearly evidenced that all supplemented PUFA, but DHA, enhanced cell susceptibility to H2O2. Overall, our results underline that PUFA cannot be considered as a single category but as individual compounds, and research on mechanisms of action and preventive effects should deal with the individual fatty acids, particularly in the case of DHA.
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Affiliation(s)
- Mattia Di Nunzio
- a Interdepartmental Centre for Industrial Agri-Food Research , University of Bologna , Cesena (FC), Italy
| | - Veronica Valli
- b Department of Agri-Food Science and Technology , University of Bologna , Cesena (FC), Italy
| | - Alessandra Bordoni
- a Interdepartmental Centre for Industrial Agri-Food Research , University of Bologna , Cesena (FC), Italy ;,b Department of Agri-Food Science and Technology , University of Bologna , Cesena (FC), Italy
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Abstract
It is now well established that reactive oxygen species (ROS) play a dual role as both deleterious and beneficial species. In fact, ROS act as secondary messengers in intracellular signalling cascades; however, they can also induce cellular senescence and apoptosis. Aging is an intricate phenomenon characterized by a progressive decline in physiological functions and an increase in mortality, which is often accompanied by many pathological diseases. ROS are involved in age-associated damage to macromolecules, and this may cause derangement in ROS-mediated cell signalling, resulting in stress and diseases. Moreover, the role of oxidative stress in age-related sarcopenia provides strong evidence for the important contribution of physical activity to limit this process. Regular physical activity is considered a preventive measure against oxidative stress-related diseases. The aim of this review is to summarize the currently available studies investigating the effects of chronic and/or acute physical exercise on the oxidative stress process in healthy elderly subjects. Although studies on oxidative stress and physical activity are limited, the available information shows that acute exercise increases ROS production and oxidative stress damage in older adults, whereas chronic exercise could protect elderly subjects from oxidative stress damage and reinforce their antioxidant defences. The available studies reveal that to promote beneficial effects of physical activity on oxidative stress, elderly subjects require moderate-intensity training rather than high-intensity exercise.
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Mankowski RT, Anton SD, Buford TW, Leeuwenburgh C. Dietary Antioxidants as Modifiers of Physiologic Adaptations to Exercise. Med Sci Sports Exerc 2016; 47:1857-68. [PMID: 25606815 DOI: 10.1249/mss.0000000000000620] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Adaptive responses to exercise training (ET) are crucial in maintaining physiologic homeostasis and health span. Exercise-induced aerobic bioenergetic reactions in the mitochondria and cytosol increase production of reactive oxygen species, where excess of reactive oxygen species can be scavenged by enzymatic and nonenzymatic antioxidants (AO) to protect against deleterious oxidative stress. Free radicals, however, have recently been recognized as crucial signaling agents that promote adaptive mechanisms to ET, such as mitochondrial biogenesis, AO enzyme activity defense system upregulation, insulin sensitivity, and glucose uptake in the skeletal muscle. Commonly used nonenzymatic AO supplements, such as vitamins C and E, α-lipoic acid, and polyphenols, in combination with ET, have been proposed as ways to prevent exercise-induced oxidative stress and hence improve adaptation responses to endurance training. METHODS During the PubMed search, we selected studies that examined and compared ET effects with and without administration of commonly used AO supplements. RESULTS Preclinical and clinical studies to date have shown inconsistent results indicating either positive or negative effects of endurance training combined with different blends of AO supplements (mostly vitamins C and E and α-lipoic acid) on redox status, mitochondrial biogenesis pathways, and insulin sensitivity. Preclinical reports on ET combined with resveratrol, however, have shown consistent positive effects on exercise performance, mitochondrial biogenesis, and insulin sensitivity, with clinical trials reporting mixed effects. Relevant clinical studies have been few and have used inconsistent results and methodology (types of compounds, combinations, and supplementation time). CONCLUSIONS The future studies should investigate the effects of specific AO and other popular supplements, such as α-lipoic acid and resveratrol, on training effects in humans. Of particular importance are older adults who may be at higher risk of age-related increased oxidative stress, an impaired AO enzyme defense system, and comorbidities such as hypertension, insulin resistance, and diabetes.
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Affiliation(s)
- Robert T Mankowski
- 1Department of Aging and Geriatric Research, Institute on Aging, University of Florida, Gainesville, FL; and 2Department of Rehabilitation Medicine, Erasmus University Medical Centre, Rotterdam, THE NETHERLANDS
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