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Dong F, Xue C, Wang Y, Peng Y, Zhang Y, Jin M, Zang B. Hydroxysafflor yellow A attenuates the expression of inflammatory cytokines in acute soft tissue injury. Sci Rep 2017; 7:40584. [PMID: 28074914 PMCID: PMC5225459 DOI: 10.1038/srep40584] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 12/08/2016] [Indexed: 11/24/2022] Open
Abstract
We examined the effect of hydroxysafflor yellow A (HSYA) on the inflammatory response to strike-induced acute soft tissue injury in rats. Soft tissue injury was induced in rat leg muscles using a strike hammer, followed by intraperitoneal administration of HSYA at 16, 32, or 64 mg/kg. After 24 h, the rats were anaesthetized, blood and muscle samples were taken. Plasma levels of interleukin (IL)-6, IL-1β, and tumour necrosis factor (TNF)-αwere measured by enzyme-linked immunosorbent assay. Total RNA and protein were isolated from muscle tissue to determine the mRNA levels of IL-6, IL-1β, TNF-α, vascular cell adhesion molecule (VCAM)-1, and intercellular adhesion molecule (ICAM)-1, and the protein level of phosphorylated p38 mitogen-activated protein kinase (MAPK). Nuclear factor (NF)-κB expression was determined by muscle histopathology and immunohistochemistry. HSYA attenuated pathologic changes instrike-induced soft tissue inflammation. Treatment with HSYA also alleviated strike-induced increases in TNF-α, IL-1β, IL-6, VCAM-1, and ICAM-1mRNA levels and inhibited the increased activation of NF-κB and phosphorylation of p38 MAPK in muscle tissue. These findings suggest that HSYA effectively inhibits strike-induced inflammatory signal transduction in rats.
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Affiliation(s)
- Fang Dong
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Changjiang Xue
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Yu Wang
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Yuanyuan Peng
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Yadan Zhang
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Ming Jin
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
| | - Baoxia Zang
- Department of Pharmacology, Beijing Anzhen Hospital, Capital Medical University, Beijing Institute of Heart Lung and Blood Vessel Disease, Beijing, P.R. China
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Kozakowska M, Pietraszek-Gremplewicz K, Jozkowicz A, Dulak J. The role of oxidative stress in skeletal muscle injury and regeneration: focus on antioxidant enzymes. J Muscle Res Cell Motil 2016; 36:377-93. [PMID: 26728750 PMCID: PMC4762917 DOI: 10.1007/s10974-015-9438-9] [Citation(s) in RCA: 183] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 12/07/2015] [Indexed: 12/20/2022]
Abstract
Reactive oxygen species (ROS) are generated in skeletal muscle both during the rest and contractile activity. Myogenic cells are equipped with antioxidant enzymes, like superoxide dismutase, catalase, glutathione peroxidase, γ-glutamylcysteine synthetase and heme oxygenase-1. These enzymes not only neutralise excessive ROS, but also affect myogenic regeneration at several stages: influence post-injury inflammatory reaction, enhance viability and proliferation of muscle satellite cells and myoblasts and affect their differentiation. Finally, antioxidant enzymes regulate also processes accompanying muscle regeneration-induce angiogenesis and reduce fibrosis. Elevated ROS production was also observed in Duchenne muscular dystrophy (DMD), a disease characterised by degeneration of muscle tissue and therefore-increased rate of myogenic regeneration. Antioxidant enzymes are consequently considered as target for therapies counteracting dystrophic symptoms. In this review we present current knowledge regarding the role of oxidative stress and systems of enzymatic antioxidant defence in muscular regeneration after both acute injury and persistent muscular degeneration.
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Affiliation(s)
- Magdalena Kozakowska
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
| | - Katarzyna Pietraszek-Gremplewicz
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
| | - Alicja Jozkowicz
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland.
| | - Jozef Dulak
- Department of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387, Kraków, Poland. .,Malopolska Centre of Biotechnology, Jagiellonian University, Kraków, Poland.
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Tan SM, Deliyanti D, Figgett WA, Talia DM, de Haan JB, Wilkinson-Berka JL. Ebselen by modulating oxidative stress improves hypoxia-induced macroglial Müller cell and vascular injury in the retina. Exp Eye Res 2015; 136:1-8. [PMID: 25912997 DOI: 10.1016/j.exer.2015.04.015] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/31/2015] [Accepted: 04/22/2015] [Indexed: 01/08/2023]
Abstract
Oxidative stress is an important contributor to glial and vascular cell damage in ischemic retinopathies. We hypothesized that ebselen via its ability to reduce reactive oxygen species (ROS) and augment nuclear factor-like 2 (Nrf2) anti-oxidants would attenuate hypoxia-induced damage to macroglial Müller cells and also lessen retinal vasculopathy. Primary cultures of rat Müller cells were exposed to normoxia (21% O2), hypoxia (0.5% O2) and ebselen (2.5 μM) for up to 72 h. Oxygen-induced retinopathy (OIR) was induced in C57BL/6J mice while control mice were housed in room air. Mice received vehicle (saline, 5% dimethyl sulfoxide) or ebselen (10 mg/kg) each day between postnatal days 6-18. In cultured Müller cells, flow cytometry for dihydroethidium revealed that ebselen reduced the hypoxia-induced increase in ROS levels, whilst increasing the expression of Nrf2-regulated anti-oxidant genes, heme oxygenase 1, glutathione peroxidase-1, NAD(P)H dehydrogenase quinone oxidoreductase 1 and glutamate-cysteine ligase. Moreover, in Müller cells, ebselen reduced the hypoxia-induced increase in protein levels of pro-angiogenic and pro-inflammatory factors including vascular endothelial growth factor, interleukin-6, monocyte chemoattractant-protein 1 and intercellular adhesion molecule-1, and the mRNA levels of glial fibrillary acidic protein (GFAP), a marker of Müller cell injury. Ebselen improved OIR by attenuating capillary vaso-obliteration and neovascularization and a concomitant reduction in Müller cell gliosis and GFAP. We conclude that ebselen protects against hypoxia-induced injury of retinal Müller cells and the microvasculature, which is linked to its ability to reduce oxidative stress, vascular damaging factors and inflammation. Agents such as ebselen may be potential treatments for retinopathies that feature oxidative stress-mediated damage to glia and the microvasculature.
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Affiliation(s)
- Sih Min Tan
- Oxidative Stress Laboratory, Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia
| | - Devy Deliyanti
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - William A Figgett
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Dean M Talia
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Judy B de Haan
- Oxidative Stress Laboratory, Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia.
| | - Jennifer L Wilkinson-Berka
- Oxidative Stress Laboratory, Diabetic Complications Division, Baker IDI Heart and Diabetes Institute, Melbourne, Victoria, Australia; Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Victoria, Australia
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Lee B, Benyajati S, Woods JA, Jan YK. Effect of local cooling on pro-inflammatory cytokines and blood flow of the skin under surface pressure in rats: feasibility study. J Tissue Viability 2014; 23:69-77. [PMID: 24513091 DOI: 10.1016/j.jtv.2014.01.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2013] [Revised: 12/18/2013] [Accepted: 01/16/2014] [Indexed: 01/11/2023]
Abstract
The primary purpose of this feasibility study was to establish a correlation between pro-inflammatory cytokine accumulation and severity of tissue damage during local pressure with various temperatures. The secondary purpose was to compare skin blood flow patterns for assessing the efficacy of local cooling on reducing skin ischemia under surface pressure. Eight Sprague-Dawley rats were assigned to two protocols, including pressure with local cooling (Δt = -10 °C) and pressure with local heating (Δt = 10 °C). Pressure of 700 mmHg was applied to the right trochanter area of rats for 3 h. Skin perfusion quantified by laser Doppler flowmetry and TNF-∗ and IL-1β levels were measured. Our results showed that TNF-α concentrations were increased more significantly with local heating than with local cooling under pressure whereas IL-1β did not change. Our results support the notion that weight bearing soft tissue damage may be reduced through temperature modulation and that non-invasive perfusion measurements using laser Doppler flowmetry may be capable of assessing viability. Furthermore, these results show that perfusion response to loading pressure may be correlated with changes in local pro-inflammatory cytokines. These relationships may be relevant for the development of cooling technologies for reducing risk of pressure ulcers.
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Affiliation(s)
- Bernard Lee
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Siribhinya Benyajati
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Jeffrey A Woods
- Rehabilitation Engineering Laboratory, Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Champaign, IL, USA
| | - Yih-Kuen Jan
- Rehabilitation Engineering Laboratory, Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Champaign, IL, USA.
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Fernandes AP, Wallenberg M, Gandin V, Misra S, Tisato F, Marzano C, Rigobello MP, Kumar S, Björnstedt M. Methylselenol formed by spontaneous methylation of selenide is a superior selenium substrate to the thioredoxin and glutaredoxin systems. PLoS One 2012; 7:e50727. [PMID: 23226364 PMCID: PMC3511371 DOI: 10.1371/journal.pone.0050727] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2012] [Accepted: 10/24/2012] [Indexed: 12/22/2022] Open
Abstract
Naturally occurring selenium compounds like selenite and selenodiglutathione are metabolized to selenide in plants and animals. This highly reactive form of selenium can undergo methylation and form monomethylated and multimethylated species. These redox active selenium metabolites are of particular biological and pharmacological interest since they are potent inducers of apoptosis in cancer cells. The mammalian thioredoxin and glutaredoxin systems efficiently reduce selenite and selenodiglutathione to selenide. The reactions are non-stoichiometric aerobically due to redox cycling of selenide with oxygen and thiols. Using LDI-MS, we identified that the addition of S-adenosylmethionine (SAM) to the reactions formed methylselenol. This metabolite was a superior substrate to both the thioredoxin and glutaredoxin systems increasing the velocities of the nonstoichiometric redox cycles three-fold. In vitro cell experiments demonstrated that the presence of SAM increased the cytotoxicity of selenite and selenodiglutathione, which could neither be explained by altered selenium uptake nor impaired extra-cellular redox environment, previously shown to be highly important to selenite uptake and cytotoxicity. Our data suggest that selenide and SAM react spontaneously forming methylselenol, a highly nucleophilic and cytotoxic agent, with important physiological and pharmacological implications for the highly interesting anticancer effects of selenium.
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Affiliation(s)
- Aristi P Fernandes
- Division of Pathology F46, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden.
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Aydemir O, Güler M, Kaya MK, Deniz N, Üstündağ B. Protective effects of ebselen on sodium-selenite-induced experimental cataract in rats. J Cataract Refract Surg 2012; 38:2160-6. [PMID: 22999516 DOI: 10.1016/j.jcrs.2012.07.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2012] [Revised: 05/24/2012] [Accepted: 07/02/2012] [Indexed: 11/17/2022]
Abstract
PURPOSE To determine whether ebselen has a protective effect or antioxidative potential in a sodium-selenite-induced experimental cataract model. SETTING Fırat University, Elazığ, Turkey. DESIGN Experimental study. METHODS Twenty-one Sprague-Dawley rat pups were randomly divided into a control group, a sodium-selenite-induced-cataract group, and an ebselen-treated group; each group contained 7 rat pups. Rats in the control group received dimethyl sulfoxide (DMSO) intraperitoneally only and rats in the sodium-selenite-induced-cataract group received 30 nmol/g body weight sodium selenite subcutaneously and DMSO intraperitoneally 10 days postpartum. Rats in the ebselen group received 30 nmol/g body weight sodium selenite subcutaneously 10 days postpartum and were treated with 5 mg/kg body weight ebselen once a day for 4 consecutive days. Cataract development was assessed weekly for 3 weeks by slitlamp examination and graded using a scale. Reduced glutathione (GSH), total nitrite, and malondialdehyde (MDA) levels in lens supernatants were measured at the end of 3 weeks. RESULTS In the control group, all lenses were clear. In the ebselen-treated group, the mean cataract stage was significantly lower than in the sodium-selenite-induced-cataract group (P = .022). The GSH levels were significantly lower in the sodium-selenite-induced-cataract group than in the control and ebselen groups (P < .001). The MDA levels were lower in the ebselen group than in the sodium-selenite-induced-cataract group (P < .001). The mean total nitrite level was significantly lower in the sodium-selenite-induced-cataract group than in the ebselen group (P = .001). CONCLUSIONS Ebselen had a protective effect on cataract development in a sodium-selenite-induced experimental model. The protective effect of ebselen appears to be due to inhibition of oxidative stress. FINANCIAL DISCLOSURE No author has a financial or proprietary interest in any material or method mentioned.
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Affiliation(s)
- Orhan Aydemir
- Department of Ophthalmology, School of Medicine, Fırat University, Elazığ, Turkey
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Zuo L, Nogueira L, Hogan MC. Reactive oxygen species formation during tetanic contractions in single isolated Xenopus myofibers. J Appl Physiol (1985) 2011; 111:898-904. [PMID: 21700897 DOI: 10.1152/japplphysiol.00398.2011] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Contracting skeletal muscle produces reactive oxygen species (ROS) that have been shown to affect muscle function and adaptation. However, real-time measurement of ROS in contracting myofibers has proven to be difficult. We used amphibian (Xenopus laevis) muscle to test the hypothesis that ROS are formed during contractile activity in isolated single skeletal muscle fibers and that this contraction-induced ROS formation affects fatigue development. Single myofibers were loaded with 5 μM dihydrofluorescein-DA (Hfluor-DA), a fluorescent probe that reacts with ROS and results in the formation of fluorescein (Fluor) to precisely monitor ROS generation within single myofibers in real time using confocal miscroscopy. Three identical periods of maximal tetanic contractions (1 contraction/3 s for 2 min, separated by 60 min of rest) were conducted by each myofiber (n = 6) at 20°C. Ebselen (an antioxidant) was present in the perfusate (10 μM) during the second contractile period. Force was reduced by ∼30% during each of the three contraction periods, with no significant difference in fatigue development among the three periods. The Fluor signal, indicative of ROS generation, increased significantly above baseline in both the first (42 ± 14%) and third periods (39 ± 10%), with no significant difference in the increase in fluorescence between the first and third periods. There was no increase of Fluor in the presence of ebselen during the second contractile period. These results demonstrated that, in isolated intact Xenopus myofibers, 1) ROS can be measured in real time during tetanic contractions, 2) contractile activity induced a significant increase above resting levels of ROS production, and 3) ebselen treatment reduced ROS generation to baseline levels but had no effect on myofiber contractility and fatigue development.
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Affiliation(s)
- Li Zuo
- Dept. of Medicine-0623A, Univ. of California, San Diego, 9500 Gilman Dr., La Jolla, CA 92093-0623, USA.
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Gehrig SM, Lynch GS. Emerging drugs for treating skeletal muscle injury and promoting muscle repair. Expert Opin Emerg Drugs 2011; 16:163-82. [DOI: 10.1517/14728214.2010.524743] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Rodeo SA, Delos D, Weber A, Ju X, Cunningham ME, Fortier L, Maher S. What's new in orthopaedic research. J Bone Joint Surg Am 2010; 92:2491-501. [PMID: 20962201 DOI: 10.2106/jbjs.j.01174] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Scott A Rodeo
- The Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA.
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