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Zhang L, Zhang T, Chen X, Wang F, Liu L, Yang Y, Zeng Y, Si Y, Yang N. Overexpression of CuZn superoxide dismutase improves high-density lipoprotein function in swine. Prostaglandins Other Lipid Mediat 2024; 172:106817. [PMID: 38331090 DOI: 10.1016/j.prostaglandins.2024.106817] [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: 10/12/2023] [Revised: 02/01/2024] [Accepted: 02/04/2024] [Indexed: 02/10/2024]
Abstract
Cardiovascular disease (CVD) has been the leading cause of death worldwide. As a chronic inflammatory disease, atherosclerosis (AS) acts as the initiating factor for CVD and reactive oxygen species (ROS) play a vital role in its development. Superoxide dismutases (SOD) can alleviate the detrimental effects of ROS and serve as the first line of defense through detoxifying the products derived from oxidative stress in vivo. Considering the potential preventive effects of high-density lipoprotein (HDL) on AS and the close relationship between CuZn superoxide dismutase (CuZnSOD) and HDL, the present work investigated whether CuZnSOD overexpression in swine could improve the function of HDL. Seven CuZnSOD transgenic swine, constructed by sperm and magnetic nanoparticles, demonstrated overexpressed CuZnSOD in the liver (P < 0.01) but comparable level to control in plasma (P > 0.05). CuZnSOD overexpression significantly down-regulated the levels of triglyceride (TG), apolipoprotein A-I (apoA-I) (P < 0.05), and high-density lipoprotein cholesterol (HDL-C) (P < 0.01) in plasma. In the presence of CuZnSOD overexpression, HDL3 significantly inhibited levels of IL-6 and TNF-α induced by oxidized low-density lipoprotein (oxLDL) (P < 0.05), indicating enhanced anti-inflammatory activity of HDL. At the same time, HDL-mediated cholesterol efflux did not decrease (P > 0.05). CuZnSOD overexpression improves the anti-inflammatory function of HDL despite decreased levels of HDL-C. In Conclusion, CuZnSOD overexpression improves HDL function in swine.
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Affiliation(s)
- Lichun Zhang
- Medical Laboratory Animal Center, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, China
| | - Tianliang Zhang
- Experimental Center for Medical Research, Weifang Medical University, Weifang, Shandong, China
| | - Xiaofeng Chen
- Beijing Chest Hospital, Capital Medical University, Beijing, China
| | - Fengjiao Wang
- Medical Laboratory Animal Center, School of Public Health, Weifang Medical University, Weifang, Shandong, China
| | - Li Liu
- Medical Laboratory Animal Center, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, China
| | - Yanmei Yang
- Medical Laboratory Animal Center, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, China
| | - Yongqing Zeng
- Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, College of Animal Science and Technology, Shandong Agricultural University, Taian, Shandong, China.
| | - Yanhong Si
- Basic Medical College, Shandong First Medical University, Taian, Shandong, China.
| | - Nana Yang
- Medical Laboratory Animal Center, School of Life Science and Technology, Weifang Medical University, Weifang, Shandong, China; Weifang Key Laboratory of Animal Model Research on Cardiovascular and Cerebrovascular Diseases, Weifang, Shandong, China.
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Li L, Chen D, Lin X, Luo J, Tan J, Ding D, Li P. Antioxidative Stress-Induced Destruction to Cochlear Cells Caused by Blind Antioxidant Therapy. Otolaryngol Head Neck Surg 2024; 170:1421-1429. [PMID: 38314899 DOI: 10.1002/ohn.659] [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: 06/17/2023] [Revised: 11/21/2023] [Accepted: 01/06/2024] [Indexed: 02/07/2024]
Abstract
OBJECTIVE Verification that blind and excessive use of antioxidants leads to antioxidant stress which exacerbates cochlear cell damage. STUDY DESIGN Basic research. SETTING The Third Affiliated Hospital of Sun Yat-Sen University. METHODS We compared and quantified hair cell-like house ear institute-organ of corti 1 (HEI-OC1) cell density, cell viability, and apoptosis caused by different concentrations of N-acetylcysteine (NAC) via Hoechst staining, Cell Counting Kit 8, Hoechst with propidium iodide staining, and Annexin V with propidium iodide (PI) staining. Apoptosis induced by high concentrations of M40403 and coenzyme Q10 in cochlear explants was analyzed and compared by cochlear dissection and activated caspase 3 labeling. RESULTS With the increase of NAC concentration (0-1000 μmol/L), cell density decreased consequently and reached the lowest at 1000 μmol/L (****P ≤ .0001). Cell viability is also declining (**P < .01). The number of Annexin V-fluorescein isothiocyanate-labeled cells and PI-labeled cells increased with increasing NAC concentration after treatment of HEI-OC1 cells for 48 hours. The proportion of apoptotic cells also rose (*P < .05, **P < .01). Cochlear hair cells (HCs) treated with low concentrations of M40403 and coenzyme Q10 for 48 hours showed no damage. When the concentrations of M40403 and coenzyme Q10 were increased (concentrations>30 μmol/L), HC damage began, followed by a dose-dependent increase in HC loss (*P < .001, **P < .0001). Activated caspase-3 was clearly apparent in cochlear explants treated with 50 μmol/L M40403 and coenzyme Q10 compared with cochlear explants without added M40403 and coenzyme Q10. CONCLUSION These experimental results suggest that inappropriate application of antioxidants can cause severe damage to normal cochlear HCs.
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Affiliation(s)
- Liling Li
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
| | - Dan Chen
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
| | - Xuexin Lin
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
| | - Jia Luo
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
| | - Jingqian Tan
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
| | - Dalian Ding
- Center for Hearing and Deafness, Department of Communicative Disorders and Sciences, University at Buffalo, Buffalo, Amherst, New York, USA
| | - Peng Li
- Department of Otolaryngology-Head and Neck Surgery, The Third Affiliated Hospital of Sun Yat-Sen University, Guang Zhou, Guangdong, China
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Okazaki K, Nakamura S, Koyano K, Konishi Y, Kondo M, Kusaka T. Neonatal asphyxia as an inflammatory disease: Reactive oxygen species and cytokines. Front Pediatr 2023; 11:1070743. [PMID: 36776908 PMCID: PMC9911547 DOI: 10.3389/fped.2023.1070743] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/10/2023] [Indexed: 01/28/2023] Open
Abstract
Neonatologists resuscitate asphyxiated neonates by every available means, including positive ventilation, oxygen therapy, and drugs. Asphyxiated neonates sometimes present symptoms that mimic those of inflammation, such as fever and edema. The main pathophysiology of the asphyxia is inflammation caused by hypoxic-ischemic reperfusion. At birth or in the perinatal period, neonates may suffer several, hypoxic insults, which can activate inflammatory cells and inflammatory mediator production leading to the release of larger quantities of reactive oxygen species (ROS). This in turn triggers the production of oxygen stress-induced high mobility group box-1 (HMGB-1), an endogenous damage-associated molecular patterns (DAMPs) protein bound to toll-like receptor (TLR) -4, which activates nuclear factor-kappa B (NF-κB), resulting in the production of excess inflammatory mediators. ROS and inflammatory mediators are produced not only in activated inflammatory cells but also in non-immune cells, such as endothelial cells. Hypothermia inhibits pro-inflammatory mediators. A combination therapy of hypothermia and medications, such as erythropoietin and melatonin, is attracting attention now. These medications have both anti-oxidant and anti-inflammatory effects. As the inflammatory response and oxidative stress play a critical role in the pathophysiology of neonatal asphyxia, these drugs may contribute to improving patient outcomes.
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Affiliation(s)
- Kaoru Okazaki
- Department of Neonatology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Shinji Nakamura
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Kosuke Koyano
- Maternal Perinatal Center, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Yukihiko Konishi
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
| | - Masatoshi Kondo
- Department of Neonatology, Tokyo Metropolitan Children's Medical Center, Tokyo, Japan
| | - Takashi Kusaka
- Department of Pediatrics, Faculty of Medicine, Kagawa University, Kagawa, Japan
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Wang Y, Huang Q, Zhang L, Zheng C, Xu H. Biphenyls in Clusiaceae: Isolation, structure diversity, synthesis and bioactivity. Front Chem 2022; 10:987009. [PMID: 36531325 PMCID: PMC9751493 DOI: 10.3389/fchem.2022.987009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 11/14/2022] [Indexed: 12/05/2022] Open
Abstract
Clusiaceae plants contain a wide range of biologically active metabolites that have gotten a lot of interest in recent decades. The chemical compositions of these plants have been demonstrated to have positive effects on a variety of ailments. The species has been studied for over 70 years, and many bioactive compounds with antioxidant, anti-proliferative, and anti-inflammatory properties have been identified, including xanthones, polycyclic polyprenylated acylphloroglucinols (PPAPs), benzophenones, and biphenyls. Prenylated side chains have been discovered in many of these bioactive substances. To date, there have been numerous studies on PPAPs and xanthones, while no comprehensive review article on biphenyls from Clusiaceae has been published. The unique chemical architectures and growing biological importance of biphenyl compounds have triggered a flurry of research and interest in their isolation, biological evaluation, and mechanistic studies. In particular, the FDA-approved drugs such as sonidegib, tazemetostat, daclatasvir, sacubitril and trifarotene are closely related to their biphenyl-containing moiety. In this review, we summarize the progress and development in the chemistry and biological activity of biphenyls in Clusiaceae, providing an in-depth discussion of their structural diversity and medicinal potential. We also present a preliminary discussion of the biological effects with or without prenyl groups on the biphenyls.
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Affiliation(s)
- Youyi Wang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qing Huang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Li Zhang
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Changwu Zheng
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
| | - Hongxi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China,*Correspondence: Changwu Zheng, ; Hongxi Xu,
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Chang S, Tat J, China SP, Kalyanaraman H, Zhuang S, Chan A, Lai C, Radic Z, Abdel-Rahman EA, Casteel DE, Pilz RB, Ali SS, Boss GR. Cobinamide is a strong and versatile antioxidant that overcomes oxidative stress in cells, flies, and diabetic mice. PNAS NEXUS 2022; 1:pgac191. [PMID: 36276587 PMCID: PMC9578022 DOI: 10.1093/pnasnexus/pgac191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/12/2022] [Indexed: 01/29/2023]
Abstract
Increased oxidative stress underlies a variety of diseases, including diabetes. Here, we show that the cobalamin/vitamin B12 analog cobinamide is a strong and multifaceted antioxidant, neutralizing superoxide, hydrogen peroxide, and peroxynitrite, with apparent rate constants of 1.9 × 108, 3.7 × 104, and 6.3 × 106 M-1 s-1, respectively, for cobinamide with the cobalt in the +2 oxidation state. Cobinamide with the cobalt in the +3 oxidation state yielded apparent rate constants of 1.1 × 108 and 8.0 × 102 M-1 s-1 for superoxide and hydrogen peroxide, respectively. In mammalian cells and Drosophila melanogaster, cobinamide outperformed cobalamin and two well-known antioxidants, imisopasem manganese and manganese(III)tetrakis(4-benzoic acid)porphyrin, in reducing oxidative stress as evidenced by: (i) decreased mitochondrial superoxide and return of the mitochondrial membrane potential in rotenone- and antimycin A-exposed H9c2 rat cardiomyocytes; (ii) reduced JNK phosphorylation in hydrogen-peroxide-treated H9c2 cells; (iii) increased growth in paraquat-exposed COS-7 fibroblasts; and (iv) improved survival in paraquat-treated flies. In diabetic mice, cobinamide administered in the animals' drinking water completely prevented an increase in lipid and protein oxidation, DNA damage, and fibrosis in the heart. Cobinamide is a promising new antioxidant that has potential use in diseases with heightened oxidative stress.
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Affiliation(s)
| | | | | | | | - Shunhui Zhuang
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Adriano Chan
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Cassandra Lai
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Zoran Radic
- Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California, San Diego, La Jolla, CA 92093, USA
| | - Engy A Abdel-Rahman
- Tumor Biology Research Program, Children’s Cancer Hospital, Cairo 57357, Egypt,Pharmacology Department, Faculty of Medicine, Assuit University, Assuit 71515, Egypt
| | - Darren E Casteel
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
| | - Renate B Pilz
- Department of Medicine, University of California, San Diego, La Jolla, CA 92093, USA
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Impact of MnTBAP and Baricitinib Treatment on Hutchinson–Gilford Progeria Fibroblasts. Pharmaceuticals (Basel) 2022; 15:ph15080945. [PMID: 36015093 PMCID: PMC9415676 DOI: 10.3390/ph15080945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/11/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023] Open
Abstract
Hutchinson–Gilford progeria syndrome (HGPS) is a rare premature aging disease. It is caused by a mutation in the LMNA gene, which results in a 50-amino-acid truncation of prelamin A. The resultant truncated prelamin A (progerin) lacks the cleavage site for the zinc-metallopeptidase ZMPSTE24. Progerin is permanently farnesylated, carboxymethylated, and strongly anchored to the nuclear envelope. This leads to abnormalities, such as altered nuclear shape, mitochondrial dysfunction, and inflammation. HGPS patients display symptoms of physiological aging, including atherosclerosis, alopecia, lipodystrophy, and arthritis. Currently, no cure for HGPS exists. Here we focus on a drug combination consisting of the superoxide dismutase mimetic MnTBAP and JAK1/2 inhibitor baricitinib (Bar) to restore phenotypic alterations in HGPS fibroblasts. Treating HGPS fibroblasts with the MnTBAP/Bar combination improved mitochondrial functions and sustained Bar’s positive effects on reducing progerin and pro-inflammatory factor levels. Collectively, MnTBAP/Bar combination treatment ameliorates the aberrant phenotype of HGPS fibroblasts and is a potential treatment strategy for patients with HGPS.
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Oliveira FMS, Kraemer L, Cavalcanti da Silva C, Nogueira DS, Gazzinelli-Guimarães AC, Gazzinelli-Guimarães PH, Barbosa FS, Resende NM, Caliari MV, Gaze ST, Bartholomeu DC, Fujiwara RT, Bueno LL. Nitric oxide contributes to liver inflammation and parasitic burden control in Ascaris suum infection. Exp Parasitol 2022; 238:108267. [PMID: 35550886 DOI: 10.1016/j.exppara.2022.108267] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 11/04/2022]
Abstract
BACKGROUND Human ascariasis is one of the most prevalent neglected tropical diseases worldwide. The immune response during human ascariasis is characterized by Th2 polarization and a mixed Th2/Th17 response during the pathogenesis of experimental larval ascariasis. Cytokines and other pro-inflammatory mediators, such as nitric oxide (NO), are involved in helminthic infections. However, the role of NO in ascariasis remains unclear. OBJECTIVES Given the importance of NO in inflammation, we aimed to determine the immunological and histopathological alterations in the livers of C57BL/6 iNOS-/- mice during A. suum infection. METHODS In this study, parasitic load was evaluated in the livers of wild type C57BL/6 and C57BL/6 iNOS-/- mice infected with A. suum. Histopathological and morphometric analyses and analysis of serum cytokines via Cytometric Bead Array were performed, and the activity of eosinophil peroxidase and myeloperoxidase of neutrophils in the tissues were determined. RESULTS The results showed that NO is important for controlling parasitic load during infection by A. suum. C57BL/6iNOS-/- mice showed reduced inflammatory processes and less tissue damage during liver larval migration of A. suum, which is associated with a reduction in serum levels of pro-inflammatory cytokines. CONCLUSIONS We demonstrated that NO is a crucial inflammatory molecule during Ascaris sp. infection and controls the establishment of the parasite and the development of the host immune response in the liver.
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Affiliation(s)
- Fabrício Marcus Silva Oliveira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Lucas Kraemer
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Caroline Cavalcanti da Silva
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Denise Silva Nogueira
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Ana Clara Gazzinelli-Guimarães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Pedro Henrique Gazzinelli-Guimarães
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | | | - Nathalia Maria Resende
- Laboratory of Sciences Applied to Immunology and Biochemistry of Health and Sport. Department of of Physical Education, Universidade Federal de Lavras, Brazil
| | - Marcelo Vidigal Caliari
- Laboratory of Protozooses, Department of Pathology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Soraya Torres Gaze
- Cellular and Molecular Immunology Group, René Rachou Institute, Oswaldo Cruz Foundation - FIOCRUZ, Brazil
| | - Daniella Castanheira Bartholomeu
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Ricardo Toshio Fujiwara
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil
| | - Lilian Lacerda Bueno
- Laboratory of Immunology and Genomics of Parasites, Department of Parasitology, Institute of Biological Sciences, Universidade Federal de Minas Gerais, Brazil.
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Squillace S, Salvemini D. Nitroxidative stress in pain and opioid-induced adverse effects: therapeutic opportunities. Pain 2022; 163:205-213. [PMID: 34145168 DOI: 10.1097/j.pain.0000000000002347] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Accepted: 05/17/2021] [Indexed: 11/25/2022]
Affiliation(s)
- Silvia Squillace
- Department of Pharmacology and Physiology, Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, MO, United States
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Chen Y, Liu L, Xia L, Wu N, Wang Y, Li H, Chen X, Zhang X, Liu Z, Zhu M, Liao Q, Wang J. TRPM7 silencing modulates glucose metabolic reprogramming to inhibit the growth of ovarian cancer by enhancing AMPK activation to promote HIF-1α degradation. J Exp Clin Cancer Res 2022; 41:44. [PMID: 35101076 PMCID: PMC8802454 DOI: 10.1186/s13046-022-02252-1] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Accepted: 01/11/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Tumor cell metabolic reprogramming is crucial for the malignant behavior of cancer cells by promoting their proliferation. However, little is known on how transient receptor potential 7 (TRPM7) modulates metabolic reprogramming in ovarian cancer. METHODS The effects of TRPM7 silencing on transcriptome profile, glucose uptake, lactic acid production, extracellular acidification rate (ECAR), oxygen consumption rate (OCR), intracellular ROS and ATP levels, and NAD+/NADH ratios in ovarian cancer cells were examined. The impacts of TRPM7 silencing on the levels of glycolysis-related HK2, PDK1 and oxidative phosphorylation (OXPHOS)-related IDH3B and UQCRC1, HIF-1α expression and AMPK phosphorylation were determined in ovarian cancer. The effect of AMPK activity on HIF-1α ubiquitination degradation was investigated in ovarian cancer cells. RESULTS Compared with the control, TRPM7 silencing suppressed the proliferation of ovarian cancer cells by shifting preferable glycolysis to OXPHOS. In parallel, TRPM7 silencing decreased the glucose uptake of tumor-bearing mice and TRPM7 levels were negatively correlated with IDH3B and UQCRC1, but positively with HK2 and PDK1 expression in ovarian cancer tissues. Mechanistically, TRPM7 silencing significantly increased AMPK phosphorylation and decreased HIF-1α protein levels in ovarian cancer, particularly in HIF-1α silencing cells. The shifting from glycolysis to OXPHOS by TRPM7 silencing was abrogated by HIF-1α over-expression and impaired by inhibiting AMPK activity in ovarian cancer cells. Moreover, enhanced AMPK activation inhibited glycolysis, which was abrogated by HIF-1α over-expression in ovarian cancer cells. Moreover, the enhanced AMPK activation promoted HIF-1α ubiquitination degradation. CONCLUSIONS TRPM7 silencing enhanced AMPK activation to shift glycolysis to oxidative phosphorylation by promoting HIF-1α ubiquitination degradation in ovarian cancer. Hence, TRPM7 may be a therapeutic target for intervention of ovarian cancer.
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Affiliation(s)
- Yongchang Chen
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
- University of South China, Hengyang, 421001, Hunan, China
| | - Lu Liu
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Longzheng Xia
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Nayiyuan Wu
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Ying Wang
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - He Li
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Xue Chen
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Xiaoye Zhang
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Zhaoyi Liu
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
| | - Miaochen Zhu
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China
- University of South China, Hengyang, 421001, Hunan, China
| | - Qianjin Liao
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China.
| | - Jing Wang
- Hunan clinicaI research center in gynecologic cancer, Hunan Key Laboratory of Cancer Metabolism, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University and Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, Hunan, China.
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Mitochondrial Oxidative Stress-A Causative Factor and Therapeutic Target in Many Diseases. Int J Mol Sci 2021; 22:ijms222413384. [PMID: 34948180 PMCID: PMC8707347 DOI: 10.3390/ijms222413384] [Citation(s) in RCA: 94] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 12/09/2021] [Accepted: 12/09/2021] [Indexed: 02/07/2023] Open
Abstract
The excessive formation of reactive oxygen species (ROS) and impairment of defensive antioxidant systems leads to a condition known as oxidative stress. The main source of free radicals responsible for oxidative stress is mitochondrial respiration. The deleterious effects of ROS on cellular biomolecules, including DNA, is a well-known phenomenon that can disrupt mitochondrial function and contribute to cellular damage and death, and the subsequent development of various disease processes. In this review, we summarize the most important findings that implicated mitochondrial oxidative stress in a wide variety of pathologies from Alzheimer disease (AD) to autoimmune type 1 diabetes. This review also discusses attempts to affect oxidative stress as a therapeutic avenue.
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Yim SK, Kim KM, Lee CH, Song EK, Lee SO, Kim SW, Kim IH, Kim SH, Seo SY, Lee ST. The Superoxide Dismutase Mimetic M40403, Improves 5-Fluorouracil-induced Small Intestinal Mucositis in a Mouse Model. In Vivo 2021; 35:1485-1497. [PMID: 33910826 DOI: 10.21873/invivo.12401] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 03/07/2021] [Accepted: 03/11/2021] [Indexed: 02/07/2023]
Abstract
BACKGROUND/AIM Intestinal mucositis with diarrhea is a dose-limiting toxicity of 5-fluorouracil (5-FU). M40403, a superoxide dismutase mimetic, was evaluated on whether it improves the mucositis with diarrhea. MATERIALS AND METHODS BALB/c mice were treated with daily intraperitoneal injections of 5-FU±M40403 for five consecutive days. Following treatment, light microscopy (apoptosis), electron microscopy (autophagy), and analyses for the expression of apoptosis/autophagy-related proteins were performed in analysing small intestinal samples. Body weight, diarrhea score, blood cytokine levels, complete blood count, and blood chemistries were measured. The in vivo anti-tumor activity of 5-FU±M40403 was also evaluated. RESULTS M40403 improved 5-FU-induced intestinal mucositis (apoptosis and autophagy) and attenuated 5-FU-induced changes in the expression of apoptosis/autophagy-related proteins, weight loss, diarrhea score, and serum TNF-α levels. M40403 neither added further adverse effects nor compromised the anti-tumor activity during 5-FU treatment. CONCLUSION M40403 can be useful in improving 5-FU-induced intestinal mucositis with diarrhea.
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Affiliation(s)
- Sung Kyun Yim
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Kyoung Min Kim
- Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea.,Department of Pathology, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea
| | - Chang-Hoon Lee
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Eun-Kee Song
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Seung Ok Lee
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Sang Wook Kim
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - In Hee Kim
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Seong-Hun Kim
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Seung Young Seo
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea.,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
| | - Soo Teik Lee
- Department of Internal Medicine, Jeonbuk National University Medical School and Hospital, Jeollabukdo, Republic of Korea; .,Research Institute of Clinical Medicine, Jeonbuk National University, Jeollabukdo, Republic of Korea
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12
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Sonis ST. Superoxide Dismutase as an Intervention for Radiation Therapy-Associated Toxicities: Review and Profile of Avasopasem Manganese as a Treatment Option for Radiation-Induced Mucositis. DRUG DESIGN DEVELOPMENT AND THERAPY 2021; 15:1021-1029. [PMID: 33716500 PMCID: PMC7944116 DOI: 10.2147/dddt.s267400] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 02/19/2021] [Indexed: 11/23/2022]
Abstract
Toxicities associated with radiation therapy are common, symptomatically devastating, and costly. The best chance to effectively mitigate radiation-associated normal tissue side effects are interventions aimed at disrupting the biological cascade, which is the basis for toxicity development, while simultaneously not reducing the beneficial impact of radiation on tumor. Oxidative stress is a key initiator of radiation-associated normal tissue injury as physiologic antioxidant mechanisms are overwhelmed by the accumulation of effects produced by fractionated treatment regimens. And fundamental to this is the generation of superoxide, which is normally removed by superoxide dismutases (SODs). Attempts to supplement the activity of endogenous SOD to prevent radiation-induced normal tissue injury have included the administration of bovine-derived SOD and increasing SOD production using gene transfer, neither of which has resulted in a clinically acceptable therapy. A third approach has been to develop synthetic small molecule dismutase mimetics. This approach has led to the creation and development of avasopasem manganese, a unique and specific dismutase mimetic that, in clinical trials, has shown promising potential to reduce the incidence, severity and duration of severe oral mucositis amongst patients being treated with concomitant chemoradiation for cancers of the head and neck. Further, avasopasem and related analogues have demonstrated mechanism-related antitumor synergy in combination with high dose per fraction radiotherapy, an observation that is also being tested in clinical trials. An ongoing Phase 3 trial seeks to confirm avasopasem manganese as an effective intervention for severe oral mucositis associated with chemoradiation in head and neck cancer patients.
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Affiliation(s)
- Stephen T Sonis
- Primary Endpoint Solutions, Waltham, MA, 02451, USA.,Brigham and Women's Hospital and the Dana-Farber Cancer Institute, Boston, MA, 02215, USA
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13
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Forman HJ, Zhang H. Targeting oxidative stress in disease: promise and limitations of antioxidant therapy. Nat Rev Drug Discov 2021; 20:689-709. [PMID: 34194012 PMCID: PMC8243062 DOI: 10.1038/s41573-021-00233-1] [Citation(s) in RCA: 868] [Impact Index Per Article: 289.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2021] [Indexed: 02/06/2023]
Abstract
Oxidative stress is a component of many diseases, including atherosclerosis, chronic obstructive pulmonary disease, Alzheimer disease and cancer. Although numerous small molecules evaluated as antioxidants have exhibited therapeutic potential in preclinical studies, clinical trial results have been disappointing. A greater understanding of the mechanisms through which antioxidants act and where and when they are effective may provide a rational approach that leads to greater pharmacological success. Here, we review the relationships between oxidative stress, redox signalling and disease, the mechanisms through which oxidative stress can contribute to pathology, how antioxidant defences work, what limits their effectiveness and how antioxidant defences can be increased through physiological signalling, dietary components and potential pharmaceutical intervention.
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Affiliation(s)
- Henry Jay Forman
- University of California Merced, Merced, CA, USA. .,Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA, USA.
| | - Hongqiao Zhang
- grid.42505.360000 0001 2156 6853Leonard Davis School of Gerontology, University of Southern California, Los Angeles, CA USA
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14
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Bassous NJ, Garcia CB, Webster TJ. A Study of the Chemistries, Growth Mechanisms, and Antibacterial Properties of Cerium- and Yttrium-Containing Nanoparticles. ACS Biomater Sci Eng 2020; 7:1787-1807. [PMID: 33966381 DOI: 10.1021/acsbiomaterials.0c00776] [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] [Indexed: 01/31/2023]
Abstract
Under the current climate, physicians prescribe antibiotics for treating bacterial infections, and such a limitation to a single class of drugs is disadvantageous since antibiotic-resistant bacteria have adapted to withstanding their stresses. Antibiotic alternatives are sought, and herein metal nanoparticles comprised of the rare earth elements cerium and yttrium were determined to invoke toxicity on methicillin-resistant Staphylococcus aureus (MRSA) and a multi-drug-resistant strain of Escherichia coli (MDR E. coli). Ceria nanoparticles, yttrium-doped ceria nanoparticles, and cerium-doped yttria nanoparticles were fabricated by a wet chemical route, homogeneous precipitation in hexamethylenetetramine (HMT). To demonstrate the drastic variations in nanoparticle structure and toxicity that occur when the synthesis method and solvent are substituted, two additional approaches involving solvothermal and hydrothermal reactions were pursued in the production of yttrium-containing nanoparticles. Intrinsic nanoparticle features of size, morphology, and composition were construed by physiochemical characterizations, which aided in the elaboration of chemical reaction and growth mechanisms. It was determined by in vitro plate count assays that ceria nanoparticles which had been doped using the yttrium metal precursor after 30 min of the HMT reaction, at 500 μg/mL, were the most effective at inhibiting MRSA growth without imposing significant cytotoxicity on human dermal fibroblast cells. A total of 500 μg/mL of cerium- and yttrium-containing nanoparticles, prepared in a 1:1 molar ratio, were similarly biocompatible and antimicrobial, in the case of MDR E. coli. Indeed, as this study showed, nanoalternatives to antibiotics are feasible, adaptable, and can be facilely produced. The possible clinical applications of the rare earth metal nanoparticles are variegated, and ceria and yttria nanoparticles are additionally credited in the literature as dynamic antioxidants, regulators of tissue regeneration, and anticancer agents.
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Affiliation(s)
- Nicole J Bassous
- Department of Chemical Engineering, Northeastern University, Boston Massachusetts 02115, United States
| | - Caterina Bartomeu Garcia
- Department of Chemical Engineering, Northeastern University, Boston Massachusetts 02115, United States
| | - Thomas J Webster
- Department of Chemical Engineering, Northeastern University, Boston Massachusetts 02115, United States
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15
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Mai N, Prifti V, Lim K, O'Reilly MA, Kim M, Halterman MW. Lung SOD3 limits neurovascular reperfusion injury and systemic immune activation following transient global cerebral ischemia. J Stroke Cerebrovasc Dis 2020; 29:104942. [PMID: 32807413 DOI: 10.1016/j.jstrokecerebrovasdis.2020.104942] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 04/21/2020] [Accepted: 05/05/2020] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Studies implicate the lung in moderating systemic immune activation via effects on circulating leukocytes. In this study, we investigated whether targeted expression of the antioxidant extracellular superoxide dismutase (SOD3) within the lung would influence post-ischemic peripheral neutrophil activation and CNS reperfusion injury. METHODS Adult, male mice expressing human SOD3 within type II pneumocytes were subjected to 15 min of transient global cerebral ischemia. Three days post-reperfusion, lung and brain tissue was collected and analyzed by immunohistochemistry for inflammation and injury markers. In vitro motility and neurotoxicity assays were conducted to ascertain the direct effects of hSOD3 on PMN activation. Results were compared against C57BL/6 age and sex-matched controls. RESULTS Relative to wild-type controls, hSOD3 heterozygous mice exhibited a reduction in lung inflammation, blood-brain barrier damage, and post-ischemic neuronal injury within the hippocampus and cortex. PMNs harvested from hSOD3 mice were also resistant to LPS priming, slower-moving, and less toxic to primary neuronal cultures. CONCLUSIONS Constitutive, focal expression of hSOD3 is neuroprotective in a model of global cerebral ischemia-reperfusion injury. The underlying mechanism of SOD3-dependent protection is attributable in part to effects on the activation state and toxic potential of circulating neutrophils. These results implicate lung-brain coupling as a determinant of cerebral ischemia-reperfusion injury and highlight post-stroke lung inflammation as a potential therapeutic target in acute ischemic cerebrovascular injuries.
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Affiliation(s)
- Nguyen Mai
- Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States
| | - Viollandi Prifti
- Neuroscience, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States
| | - Kihong Lim
- Microbiology & Immunology, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States
| | - Michael A O'Reilly
- Pediatrics, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States
| | - Minsoo Kim
- Microbiology & Immunology, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States
| | - Marc W Halterman
- Departments of Neurology & Neuroscience, University of Rochester Medical Center, 601 Elmwood Avenue, Rochester, NY 14642 United States; Departments of Neurology, University of Rochester School of Medicine and Dentistry, Rochester NY 14642 United States.
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16
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De Lazzari F, Bubacco L, Whitworth AJ, Bisaglia M. Superoxide Radical Dismutation as New Therapeutic Strategy in Parkinson's Disease. Aging Dis 2018; 9:716-728. [PMID: 30090659 PMCID: PMC6065289 DOI: 10.14336/ad.2017.1018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Accepted: 10/18/2017] [Indexed: 12/18/2022] Open
Abstract
Aging is the biggest risk factor for developing many neurodegenerative disorders, including idiopathic Parkinson's disease (PD). PD is still an incurable disorder and the available medications are mainly directed to the treatment of symptoms in order to improve the quality of life. Oxidative injury has been identified as one of the principal factors involved in the progression of PD and several indications are now reported in the literature highlighting the prominent role of the superoxide radical in inducing neuronal toxicity. It follows that superoxide anions represent potential cellular targets for new drugs offering a novel therapeutic approach to cope with the progression of the disease. In this review we first present a comprehensive overview of the most common cellular reactive oxygen and nitrogen species, describing their cellular sources, their potential physiological roles in cell signalling pathways and the mechanisms through which they could contribute to the oxidative damage. We then analyse the potential therapeutic use of SOD-mimetic molecules, which can selectively remove superoxide radicals in a catalytic way, focusing on the classes of molecules that have therapeutically exploitable properties.
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Affiliation(s)
- Federica De Lazzari
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy.
| | - Luigi Bubacco
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy.
| | - Alexander J Whitworth
- Medical Research Council Mitochondrial Biology Unit, University of Cambridge, Cambridge Biomedical Campus, Cambridge, CB2 0XY, UK.
| | - Marco Bisaglia
- Molecular Physiology and Biophysics Unit, Department of Biology, University of Padova, 35131 Padova, Italy.
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17
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Hamdy MM, Elbadr MM, Barakat A. Fluoxetine uses in nociceptive pain management: a promising adjuvant to opioid analgesics. Fundam Clin Pharmacol 2018; 32:532-546. [DOI: 10.1111/fcp.12383] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 03/17/2018] [Accepted: 05/04/2018] [Indexed: 01/20/2023]
Affiliation(s)
- Mostafa M. Hamdy
- Department of Medical Pharmacology; Faculty of Medicine; Assiut University; Assiut 71526 Egypt
| | - Mohamed M. Elbadr
- Department of Medical Pharmacology; Faculty of Medicine; Assiut University; Assiut 71526 Egypt
| | - Ahmed Barakat
- Department of Medical Pharmacology; Faculty of Medicine; Assiut University; Assiut 71526 Egypt
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18
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Antonenko T, Shpakovsky D, Vorobyov M, Gracheva Y, Kharitonashvili E, Dubova L, Shevtsova E, Tafeenko V, Aslanov L, Iksanova A, Shtyrlin Y, Milaeva E. Antioxidative vs
cytotoxic activities of organotin complexes bearing 2,6-di-tert
-butylphenol moieties. Appl Organomet Chem 2018. [DOI: 10.1002/aoc.4381] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T.A. Antonenko
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - D.B. Shpakovsky
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - M.A. Vorobyov
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - Yu.A. Gracheva
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - E.V. Kharitonashvili
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - L.G. Dubova
- Institute of Physiologically Active Compounds of Russian Academy of Sciences; Chernogolovka 142432 Russia
| | - E.F. Shevtsova
- Institute of Physiologically Active Compounds of Russian Academy of Sciences; Chernogolovka 142432 Russia
| | - V.A. Tafeenko
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - L.A. Aslanov
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
| | - A.G. Iksanova
- Kazan (Volga Region) Federal University; Kazan 420008 Russia
| | - Yu.G. Shtyrlin
- Kazan (Volga Region) Federal University; Kazan 420008 Russia
| | - E.R. Milaeva
- Department of Medicinal Chemistry and Fine Organic Synthesis; Lomonosov Moscow State University; Moscow 119991 Russia
- Kazan (Volga Region) Federal University; Kazan 420008 Russia
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19
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Heer CD, Davis AB, Riffe DB, Wagner BA, Falls KC, Allen BG, Buettner GR, Beardsley RA, Riley DP, Spitz DR. Superoxide Dismutase Mimetic GC4419 Enhances the Oxidation of Pharmacological Ascorbate and Its Anticancer Effects in an H₂O₂-Dependent Manner. Antioxidants (Basel) 2018; 7:antiox7010018. [PMID: 29351198 PMCID: PMC5789328 DOI: 10.3390/antiox7010018] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2017] [Revised: 01/12/2018] [Accepted: 01/16/2018] [Indexed: 01/17/2023] Open
Abstract
Lung cancer, together with head and neck cancer, accounts for more than one-fourth of cancer deaths worldwide. New, non-toxic therapeutic approaches are needed. High-dose IV vitamin C (aka, pharmacological ascorbate; P-AscH−) represents a promising adjuvant to radiochemotherapy that exerts its anti-cancer effects via metal-catalyzed oxidation to form H2O2. Mn(III)-porphyrins possessing superoxide dismutase (SOD) mimetic activity have been shown to increase the rate of oxidation of AscH−, enhancing the anti-tumor effects of AscH− in several cancer types. The current study demonstrates that the Mn(II)-containing pentaazamacrocyclic selective SOD mimetic GC4419 may serve as an AscH−/O2•− oxidoreductase as evidenced by the increased rate of oxygen consumption, steady-state concentrations of ascorbate radical, and H2O2 production in complete cell culture media. GC4419, but not CuZnSOD, was shown to significantly enhance the toxicity of AscH− in H1299, SCC25, SQ20B, and Cal27 cancer cell lines. This enhanced cancer cell killing was dependent upon the catalytic activity of the SOD mimetic and the generation of H2O2, as determined using conditional overexpression of catalase in H1299T cells. GC4419 combined with AscH− was also capable of enhancing radiation-induced cancer cell killing. Currently, AscH− and GC4419 are each being tested separately in clinical trials in combination with radiation therapy. Data presented here support the hypothesis that the combination of GC4419 and AscH− may provide an effective means by which to further enhance radiation therapy responses.
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Affiliation(s)
- Collin D Heer
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - Andrew B Davis
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - David B Riffe
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - Brett A Wagner
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - Kelly C Falls
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - Bryan G Allen
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | - Garry R Buettner
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
| | | | | | - Douglas R Spitz
- Free Radical and Radiation Biology Program, Department of Radiation Oncology, Holden Comprehensive Cancer Center, The University of Iowa College of Medicine, Iowa City, IA 52242, USA.
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20
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Weekley CM, Kenkel I, Lippert R, Wei S, Lieb D, Cranwell T, Wedding JL, Zillmann AS, Rohr R, Filipovic MR, Ivanović-Burmazović I, Harris HH. Cellular Fates of Manganese(II) Pentaazamacrocyclic Superoxide Dismutase (SOD) Mimetics: Fluorescently Labeled MnSOD Mimetics, X-ray Absorption Spectroscopy, and X-ray Fluorescence Microscopy Studies. Inorg Chem 2017; 56:6076-6093. [DOI: 10.1021/acs.inorgchem.6b03073] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Claire M. Weekley
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Isabell Kenkel
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Rainer Lippert
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Shengwei Wei
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Dominik Lieb
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Tiffanny Cranwell
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Jason L. Wedding
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Annika S. Zillmann
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Robin Rohr
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Milos R. Filipovic
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Ivana Ivanović-Burmazović
- Department of Chemistry
and Pharmacy, University of Erlangen−Nuremberg, Egerlandstrasse 1, 91058 Erlangen, Germany
| | - Hugh H. Harris
- Department of Chemistry, The University of Adelaide, Adelaide, South Australia 5005, Australia
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21
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Early energy metabolism-related molecular events in skeletal muscle of diabetic rats: The effects of l-arginine and SOD mimic. Chem Biol Interact 2017; 272:188-196. [PMID: 28483572 DOI: 10.1016/j.cbi.2017.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 04/20/2017] [Accepted: 05/03/2017] [Indexed: 01/17/2023]
Abstract
Considering the vital role of skeletal muscle in control of whole-body metabolism and the severity of long-term diabetic complications, we aimed to reveal the molecular pattern of early diabetes-related skeletal muscle phenotype in terms of energy metabolism, focusing on regulatory mechanisms, and the possibility to improve it using two redox modulators, l-arginine and superoxide dismutase (SOD) mimic. Alloxan-induced diabetic rats (120 mg/kg) were treated with l-arginine or the highly specific SOD mimic, M40403, for 7 days. As appropriate controls, non-diabetic rats received the same treatments. We found that l-arginine and M40403 restored diabetes-induced impairment of phospho-5'-AMP-activated protein kinase α (AMPKα) signaling by upregulating AMPKα protein itself and its downstream effectors, peroxisome proliferator-activated receptor-γ coactivator-1α and nuclear respiratory factor 1. Also, there was a restitution of the protein levels of oxidative phosphorylation components (complex I, complex II and complex IV) and mitofusin 2. Furthermore, l-arginine and M40403 induced translocation of glucose transporter 4 to the membrane and upregulation of protein of phosphofructokinase and acyl coenzyme A dehydrogenase, diminishing negative diabetic effects on limiting factors of glucose and lipid metabolism. Both treatments abolished diabetes-induced downregulation of sarcoplasmic reticulum calcium-ATPase proteins (SERCA 1 and 2). Similar effects of l-arginine and SOD mimic treatments suggest that disturbances in the superoxide/nitric oxide ratio may be responsible for skeletal muscle mitochondrial and metabolic impairment in early diabetes. Our results provide evidence that l-arginine and SOD mimics have potential in preventing and treating metabolic disturbances accompanying this widespread metabolic disease.
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22
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Shanmugapriya A, Jain R, Sabarinathan D, Kalaiarasi G, Dallemer F, Prabhakaran R. Structurally different mono-, bi- and trinuclear Pd(ii) complexes and their DNA/protein interaction, DNA cleavage, and anti-oxidant, anti-microbial and cytotoxic studies. NEW J CHEM 2017. [DOI: 10.1039/c7nj01556a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of new structurally different Pd(ii) complexes was obtained by the reactions between K2[PdCl4], 3-methoxysalicylaldehyde-4(N)-substituted thiosemicarbazone [H2L1–H2L4] and bis(diphenylphosphino)ethane [dppe].
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Affiliation(s)
- A. Shanmugapriya
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - Ruchi Jain
- Department of MRDG
- Indian Institute of Science
- Bangalore 560012
- India
| | - D. Sabarinathan
- Department of Microbial Biotechnology
- Bharathiar University
- Coimbatore – 641 046
- India
| | - G. Kalaiarasi
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
| | - F. Dallemer
- Lab MADIREL CNRS UMR 7246
- Aix Marseille University
- 13397 Marseille Cedex 20
- France
| | - R. Prabhakaran
- Department of Chemistry
- Bharathiar University
- Coimbatore 641 046
- India
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23
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Di Paola R, Marzocco S, Mazzon E, Dattola F, Rotondo F, Britti D, De Majo M, Genovese T, Cuzzocrea S. Effect of Aminoguanidine in Ligature-induced Periodontitis in Rats. J Dent Res 2016; 83:343-8. [PMID: 15044511 DOI: 10.1177/154405910408300414] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The role of nitric oxide and reactive oxygen species is well-demonstrated in inflammation. In this study, we evaluated the effect of aminoguanidine, a nitric oxide synthase inhibitor, in a rat model of periodontitis. We induced periodontitis in rats by placing a piece of 2/0 braided silk around the lower left 1st molar. At day 8, the gingivomucosal tissue encircling the mandibular 1st molar was removed for biochemical and histological analysis. Ligation significantly increased inducible nitric oxide synthase activity and expression, and damaged tissue revealed increased neutrophil infiltration, lipid peroxidation, and positive staining for nitrotyrosine formation and poly (ADP-ribose) polymerase activation. Ligation significantly increased Evans blue extravasation in gingivomucosal tissue and alveolar bone destruction. Aminoguanidine (100 mg/kg i.p., daily for 8 days) treatment significantly reduced all these inflammatory parameters, indicating that it protects against the tissue damage associated with periodontitis by reducing nitric oxide production and oxidative stress.
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Affiliation(s)
- R Di Paola
- Institute of Pharmacology, School of Medicine, University of Messina, Torre Biologica, Policlinico Universitario, Via C. Valeria, Gazzi, 98100 Messina, Italy
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Das S, Dowding JM, Klump KE, McGinnis JF, Self W, Seal S. Cerium oxide nanoparticles: applications and prospects in nanomedicine. Nanomedicine (Lond) 2014; 8:1483-508. [PMID: 23987111 DOI: 10.2217/nnm.13.133] [Citation(s) in RCA: 283] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Promising results have been obtained using cerium (Ce) oxide nanoparticles (CNPs) as antioxidants in biological systems. CNPs have unique regenerative properties owing to their low reduction potential and the coexistence of both Ce(3+)/Ce(4+) on their surfaces. Defects in the crystal lattice due to the presence of Ce(3+) play an important role in tuning the redox activity of CNPs. The surface Ce(3+):Ce(4+) ratio is influenced by the microenvironment. Therefore, the microenvironment and synthesis method adopted also plays an important role in determining the biological activity and toxicity of CNPs. The presence of a mixed valance state plays an important role in scavenging reactive oxygen and nitrogen species. CNPs are found to be effective against pathologies associated with chronic oxidative stress and inflammation. CNPs are well tolerated in both in vitro and in vivo biological models, which makes CNPs well suited for applications in nanobiology and regenerative medicine.
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Affiliation(s)
- Soumen Das
- Advanced Materials Processing Analysis Center, Nanoscience Technology Center, University of Central Florida, Orlando, FL, USA
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Butturini E, Di Paola R, Suzuki H, Paterniti I, Ahmad A, Mariotto S, Cuzzocrea S. Costunolide and Dehydrocostuslactone, two natural sesquiterpene lactones, ameliorate the inflammatory process associated to experimental pleurisy in mice. Eur J Pharmacol 2014; 730:107-15. [PMID: 24625594 DOI: 10.1016/j.ejphar.2014.02.031] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 02/19/2014] [Accepted: 02/28/2014] [Indexed: 12/31/2022]
Abstract
The aim of this study was to investigate the effect of costunolide (CS) and dehydrocostuslactone (DCE) a well-known sesquiterpene lactones contained in many plants, in a model of lung injury induced by carrageenan administration in the mice. Injection of carrageenan into the pleural cavity of mice elicited an acute inflammatory response characterized by fluid accumulation in the pleural cavity which contained a large number of polymorphonuclear cells (PMNs) as well as an infiltration of PMNs in lung tissues and increased production of tumour necrosis factor α (TNF-α). All parameters of inflammation were attenuated by CS and DCE (15mg/kg 10% DMSO i.p.) administered 1h before carrageenan. Carrageenan induced an up regulation of the intracellular adhesion molecules-1 (ICAM-1) and P-selectin, as well as nitrotyrosine and poly (ADP-ribose) (PAR) as determined by immunohistochemical analysis of lung tissues. The degree of staining for the ICAM-1, P-selectin, nitrotyrosine and PAR was reduced by CS and DCE. Additionally we show that this inflammatory events were associated with NF-κB and STAT3 activation and these sesquiterpenes down-regulated it. Taken together, ours results clearly shown that CS and DCE may offer a novel therapeutic approach for the management of inflammatory diseases.
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Affiliation(s)
- Elena Butturini
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Rosanna Di Paola
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Hisanori Suzuki
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy
| | - Irene Paterniti
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Akbar Ahmad
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy
| | - Sofia Mariotto
- Department of Life and Reproduction Sciences, Section of Biochemistry, University of Verona, Verona, Italy.
| | - Salvatore Cuzzocrea
- Department of Biological and Environmental Sciences, University of Messina, 98166 Messina, Italy; Manchester University, Manchester, United Kingdom.
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Mitchell T, Chacko BK, Darley-Usmar V. Controlling radicals in the powerhouse: development of MitoSOD. ACTA ACUST UNITED AC 2013; 19:1217-8. [PMID: 23102214 DOI: 10.1016/j.chembiol.2012.10.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Investigators in the redox biology field have long recognized the unique role mitochondrial superoxide generation plays in physiological signaling and in dysregulated bioenergetic dysfunction. Pharmacological manipulation has been challenging, and in this issue of Chemistry & Biology, Kelso and colleagues present the synthesis and characterization of a novel mitochondrial-targeted SOD mimetic, MitoSOD.
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Fang JS, Angelov SN, Simon AM, Burt JM. Compromised regulation of tissue perfusion and arteriogenesis limit, in an AT1R-independent fashion, recovery of ischemic tissue in Cx40(-/-) mice. Am J Physiol Heart Circ Physiol 2013; 304:H816-27. [PMID: 23292716 PMCID: PMC3602768 DOI: 10.1152/ajpheart.00719.2012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Accepted: 01/02/2013] [Indexed: 11/22/2022]
Abstract
Recently, we reported that recovery of tissue perfusion in the ischemic hindlimb was reduced, inflammatory response increased, and survival of distal limb tissue compromised in connexin 40 (Cx40)-deficient (Cx40(-/-)) mice. Here we evaluate whether genotype-specific differences in tissue perfusion, native vascular density, arteriogenesis, blood pressure, and chronic ANG II type 1 receptor (AT1R) activation contribute to poor recovery of ischemic hindlimb tissue in Cx40(-/-) mice. Hindlimb ischemia was induced in wild-type (WT), Cx40(-/-), and losartan-treated Cx40(-/-) mice by using surgical procedures that either maintained (mild surgery) or compromised (severe surgery) perfusion of major collateral vessels supplying the distal limb. Pre- and postsurgical hindlimb perfusion was evaluated, and tissue survival, microvascular density, and macrophage infiltration were documented during recovery. Hindlimb perfusion was compromised in presurgical Cx40(-/-) versus WT mice despite comparable native microvascular density. Hindlimb perfusion 24 h postsurgery in Cx40(-/-) and WT mice was comparable after mild surgery (collateral vessels maintained), but compromised arteriogenesis in Cx40(-/-) animals nevertheless limited subsequent recovery of tissue perfusion and compromised tissue survival. Prolonged pre- and postsurgical treatment of Cx40(-/-) mice with losartan (an AT1R antagonist) normalized blood pressure but did not improve tissue perfusion or survival, despite reduced macrophage infiltration. Thus it appears Cx40 is necessary for normal tissue perfusion and for recovery of perfusion, arteriogenesis, and tissue survival in the ischemic hindlimb. Our data suggest that Cx40(-/-) mice are at significantly greater risk for poor recovery from ischemic insult due to compromised regulation of tissue perfusion, vascular remodeling, and prolonged inflammatory response.
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Affiliation(s)
- Jennifer S Fang
- Department of Physiology, University of Arizona, Tucson, AZ 85718, USA
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Finley A, Chen Z, Esposito E, Cuzzocrea S, Sabbadini R, Salvemini D. Sphingosine 1-phosphate mediates hyperalgesia via a neutrophil-dependent mechanism. PLoS One 2013; 8:e55255. [PMID: 23372844 PMCID: PMC3555820 DOI: 10.1371/journal.pone.0055255] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 12/21/2012] [Indexed: 01/12/2023] Open
Abstract
Novel classes of pain-relieving molecules are needed to fill the void between non-steroidal anti-inflammatory agents and narcotics. We have recently shown that intraplantar administration of sphingosine 1-phosphate (S1P) in rats causes peripheral sensitization and hyperalgesia through the S1P(1) receptor subtype (S1PR(1)): the mechanism(s) involved are largely unknown and were thus explored in the present study. Intraplantar injection of carrageenan in rats led to a time-dependent development of thermal hyperalgesia that was associated with pronounced edema and infiltration of neutrophils in paw tissues. Inhibition of 1) S1P formation with SK-I, a sphingosine kinase inhibitor, 2) S1P bioavailability with the S1P blocking antibody Sphingomab, LT1002 (but not its negative control, LT1017) or 3) S1P actions through S1PR(1) with the selective S1PR(1) antagonist, W146 (but not its inactive enantiomer, W140) blocked thermal hyperalgesia and infiltration of neutrophils. Taken together, these findings identify S1P as an important contributor to inflammatory pain acting through S1PR(1) to elicit hyperalgesia in a neutrophil-dependant manner. In addition and in further support, we demonstrate that the development of thermal hyperalgesia following intraplantar injection of S1P or SEW2871 (an S1PR(1) agonist) was also associated with neutrophilic infiltration in paw tissues as these events were attenuated by fucoidan, an inhibitor of neutrophilic infiltration. Importantly, FTY720, an FDA-approved S1P receptor modulator known to block S1P-S1PR(1) signaling, attenuated carrageenan-induced thermal hyperalgesia and associated neutrophil infiltration. Targeting the S1P/S1PR(1) axis opens a therapeutic strategy for the development of novel non-narcotic anti-hyperalgesic agents.
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Affiliation(s)
- Amanda Finley
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, St. Louis, Missouri, United States of America
| | - Zhoumou Chen
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, St. Louis, Missouri, United States of America
| | - Emanuela Esposito
- Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy
| | - Salvatore Cuzzocrea
- Department of Clinical and Experimental Medicine and Pharmacology, University of Messina, Messina, Italy
| | - Roger Sabbadini
- Lpath, Inc., and Department of Biology, San Diego State University, San Diego, California, United States of America
| | - Daniela Salvemini
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, St. Louis, Missouri, United States of America
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Milaeva ER, Shpakovsky DB, Gracheva YA, Orlova SI, Maduar VV, Tarasevich BN, Meleshonkova NN, Dubova LG, Shevtsova EF. Metal complexes with functionalised 2,2′-dipicolylamine ligand containing an antioxidant 2,6-di-tert-butylphenol moiety: synthesis and biological studies. Dalton Trans 2013; 42:6817-28. [DOI: 10.1039/c3dt50160d] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Karakus E, Halici Z, Albayrak A, Bayir Y, Aydin A, Unal D, Cadirci E, Ferah I, Odaci E. Beneficial Pharmacological Effects of Levosimendan on Antioxidant Status of Acute Inflammation Induced in Paw of Rat: Involvement in Inflammatory Mediators. Basic Clin Pharmacol Toxicol 2012; 112:156-63. [DOI: 10.1111/bcpt.12004] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2012] [Accepted: 08/21/2012] [Indexed: 12/20/2022]
Affiliation(s)
- Emre Karakus
- Department of Pharmacology and Toxicology; Ataturk University School of Veterinary; Erzurum; Turkey
| | - Zekai Halici
- Department of Pharmacology; Ataturk University School of Medicine; Erzurum; Turkey
| | - Abdulmecit Albayrak
- Department of Pharmacology; Ataturk University School of Medicine; Erzurum; Turkey
| | - Yasin Bayir
- Department of Biochemistry; Ataturk University School of Pharmacy; Erzurum; Turkey
| | - Ali Aydin
- Department of Histology and Embryology; Ataturk University School of Pharmacy; Erzurum; Turkey
| | - Deniz Unal
- Department of Orthopedic and Traumatology; Ataturk University School of Pharmacy; Erzurum; Turkey
| | - Elif Cadirci
- Department of Pharmacology; Ataturk University School of Pharmacy; Erzurum; Turkey
| | - Irmak Ferah
- Department of Pharmacology; Ataturk University School of Medicine; Erzurum; Turkey
| | - Ersan Odaci
- Department of Histology and Embryology; Karadeniz Technical University School of Medicine; Trabzon; Turkey
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IvanoviĆ-BurmazoviĆ I, FilipoviĆ MR. Reactivity of manganese superoxide dismutase mimics toward superoxide and nitric oxide. ADVANCES IN INORGANIC CHEMISTRY 2012. [DOI: 10.1016/b978-0-12-396462-5.00003-9] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Mao YW, Tseng HW, Liang WL, Chen IS, Chen ST, Lee MH. Anti-inflammatory and free radial scavenging activities of the constituents isolated from Machilus zuihoensis. Molecules 2011; 16:9451-66. [PMID: 22075574 PMCID: PMC6264439 DOI: 10.3390/molecules16119451] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2011] [Revised: 11/01/2011] [Accepted: 11/02/2011] [Indexed: 11/16/2022] Open
Abstract
A new biflavonol glycoside, quercetin-3-O-β-D-glucopyranoside-(3'→O-3''')-quercetin-3-O-β-D-galactopyranoside (9), together with eight known compounds was isolated for the first time from the leaves of Machilus zuihoensis Hayata (Lauraceae). The structure of compound 9 was elucidated by various types of spectroscopic data analysis. Analysis of the biological activity assay found that compound 9 showed significant superoxide anion scavenging activity (IC₅₀ is 30.4 μM) and markedly suppressed LPS-induced high mobility group box 1 (HMGB-1) protein secretion in RAW264.7 cells. In addition, the HMGB-1 protein secretion was also inhibited by quercitrin (3), ethyl caffeate (6), and ethyl 3-O-caffeoylquinate (7) treatment. In the LPS-stimulated inducible nitric oxide synthase (iNOS) activation analysis, two known compounds, quercetin (1) and ethyl caffeate (6), were found to markedly suppress nitric oxide (NO) production (IC₅₀ value, 27.6 and 42.9 μM, respectively) in RAW264.7 cells. Additionally, it was determined that ethyl caffeate (6) down-regulated mRNA expressions of iNOS, IL-1β, and IL-10 in the LPS-treatment of RAW264.7 cells via a suppressed NF-kB pathway. These results suggested for the first time that the new compound 9 and other constituents isolated from M. zuihoensis have potential anti-inflammatory and superoxide anion scavenging effects. These constituents may be useful for treating various inflammatory diseases.
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Affiliation(s)
- Yi-Wen Mao
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan; (Y.-W.M.); (W.-L.L.)
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Hsiang-Wen Tseng
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu 300, Taiwan; (H.-W.T.)
| | - Wen-Li Liang
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan; (Y.-W.M.); (W.-L.L.)
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Ih-Sheng Chen
- Graduate Institute of Pharmaceutical Sciences, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan; (I.-S.C.)
| | - Shui-Tein Chen
- Institute of Biological Chemistry, Academia Sinica, Taipei 115, Taiwan
- Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 106, Taiwan
- Authors to whom correspondence should be addressed; (S.-T.C.); (M.-H.L.); Tel.: +886-(2)-2732-6752 (S.-T.C.); +886-(2)-2736-1661 (ext. 6151) (M.-H.L.); Fax: +886-(2)-27883473 (S.-T.C.); +886-(2)-27357983(M.-H.L.)
| | - Mei-Hsien Lee
- Graduate Institute of Pharmacognosy, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Center for Reproductive Medicine & Sciences, Taipei Medical University Hospital, Taipei 110, Taiwan
- Authors to whom correspondence should be addressed; (S.-T.C.); (M.-H.L.); Tel.: +886-(2)-2732-6752 (S.-T.C.); +886-(2)-2736-1661 (ext. 6151) (M.-H.L.); Fax: +886-(2)-27883473 (S.-T.C.); +886-(2)-27357983(M.-H.L.)
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Calabrese V, Cornelius C, Dinkova-Kostova AT, Iavicoli I, Di Paola R, Koverech A, Cuzzocrea S, Rizzarelli E, Calabrese EJ. Cellular stress responses, hormetic phytochemicals and vitagenes in aging and longevity. Biochim Biophys Acta Mol Basis Dis 2011; 1822:753-83. [PMID: 22108204 DOI: 10.1016/j.bbadis.2011.11.002] [Citation(s) in RCA: 280] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 10/31/2011] [Accepted: 11/01/2011] [Indexed: 12/30/2022]
Abstract
Modulation of endogenous cellular defense mechanisms represents an innovative approach to therapeutic intervention in diseases causing chronic tissue damage, such as in neurodegeneration. This paper introduces the emerging role of exogenous molecules in hormetic-based neuroprotection and the mitochondrial redox signaling concept of hormesis and its applications to the field of neuroprotection and longevity. Maintenance of optimal long-term health conditions is accomplished by a complex network of longevity assurance processes that are controlled by vitagenes, a group of genes involved in preserving cellular homeostasis during stressful conditions. Vitagenes encode for heat shock proteins (Hsp) Hsp32, Hsp70, the thioredoxin and the sirtuin protein systems. Dietary antioxidants, such as polyphenols and L-carnitine/acetyl-L-carnitine, have recently been demonstrated to be neuroprotective through the activation of hormetic pathways, including vitagenes. Hormesis provides the central underpinning of neuroprotective responses, providing a framework for explaining the common quantitative features of their dose response relationships, their mechanistic foundations, their relationship to the concept of biological plasticity as well as providing a key insight for improving the accuracy of the therapeutic dose of pharmaceutical agents within the highly heterogeneous human population. This paper describes in mechanistic detail how hormetic dose responses are mediated for endogenous cellular defense pathways including sirtuin, Nrfs and related pathways that integrate adaptive stress responses in the prevention of neurodegenerative diseases. This article is part of a Special Issue entitled: Antioxidants and Antioxidant Treatment in Disease.
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Calabrese V, Cornelius C, Cuzzocrea S, Iavicoli I, Rizzarelli E, Calabrese EJ. Hormesis, cellular stress response and vitagenes as critical determinants in aging and longevity. Mol Aspects Med 2011; 32:279-304. [PMID: 22020114 DOI: 10.1016/j.mam.2011.10.007] [Citation(s) in RCA: 163] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Accepted: 10/11/2011] [Indexed: 12/14/2022]
Abstract
Understanding mechanisms of aging and determinants of life span will help to reduce age-related morbidity and facilitate healthy aging. Average lifespan has increased over the last centuries, as a consequence of medical and environmental factors, but maximal life span remains unchanged. Extension of maximal life span is currently possible in animal models with measures such as genetic manipulations and caloric restriction (CR). CR appears to prolong life by reducing reactive oxygen species (ROS)-mediated oxidative damage. But ROS formation, which is positively implicated in cellular stress response mechanisms, is a highly regulated process controlled by a complex network of intracellular signaling pathways. By sensing the intracellular nutrient and energy status, the functional state of mitochondria, and the concentration of ROS produced in mitochondria, the longevity network regulates life span across species by co-ordinating information flow along its convergent, divergent and multiply branched signaling pathways, including vitagenes which are genes involved in preserving cellular homeostasis during stressful conditions. Vitagenes encode for heat shock proteins (Hsp) Hsp32, Hsp70, the thioredoxin and the sirtuin protein systems. Dietary antioxidants, such as carnosine, carnitines or polyphenols, have recently been demonstrated to be neuroprotective through the activation of hormetic pathways, including vitagenes. The hormetic dose-response, challenges long-standing beliefs about the nature of the dose-response in a lowdose zone, having the potential to affect significantly the design of pre-clinical studies and clinical trials as well as strategies for optimal patient dosing in the treatment of numerous diseases. Given the broad cytoprotective properties of the heat shock response there is now strong interest in discovering and developing pharmacological agents capable of inducing stress responses. In this review we discuss the most current and up to date understanding of the possible signaling mechanisms by which caloric restriction, as well hormetic caloric restriction-mimetics compounds by activating vitagenes can enhance defensive systems involved in bioenergetic and stress resistance homeostasis with consequent impact on longevity processes.
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Affiliation(s)
- Vittorio Calabrese
- Department of Chemistry, University of Catania, Viale Andrea Doria, 95100 Catania, Italy.
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Anti-inflammatory, antinociceptive and antioxidant activities of the endemic Soqotraen Boswellia elongata Balf. f. and Jatropha unicostata Balf. f. in different experimental models. Food Chem Toxicol 2011; 49:2594-9. [DOI: 10.1016/j.fct.2011.06.079] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2011] [Revised: 06/15/2011] [Accepted: 06/17/2011] [Indexed: 11/24/2022]
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Vircheva S, Nenkova G, Georgieva A, Alexandrova A, Tzvetanova E, Mateeva P, Zamfirova R, Kirkova M. Effects of desipramine on the antioxidant status in rat tissues at carrageenan-induced paw inflammation. Cell Biochem Funct 2011; 30:18-23. [PMID: 21953526 DOI: 10.1002/cbf.1812] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 08/15/2011] [Accepted: 08/24/2011] [Indexed: 12/28/2022]
Abstract
The pathogenesis of many diseases and different pathological conditions, including inflammation, is associated with excess production of reactive oxygen species (ROS). The present study aimed to investigate the effects of the antidepressant desipramine (DES) on carrageenan (CG)-induced inflammation, as well as on the endogenous levels of cell enzyme and non-enzyme antioxidants in rat liver and spleen, 4 and 24 h after CG injection. The intra-plantar CG injection into the right hind paw resulted in a time-dependent increase in the paw volume; the maximum of CG-induced edema peak was in 2-4 h. A single DES dose of 20 mg · kg(-1) , administered 30 min before CG, had no effect on paw edema, whereas the higher drug dose used (50 mg · kg(-1) ) suppressed the edematous response to CG. The latter drug dose protected CG-induced decrease of glutathione (non-enzyme antioxidant) in the liver; it did not affect CG-unchanged activities of superoxide dismutase, glutathione peroxidase (enzyme antioxidants) and glucose-6-phosphate dehydrogenase (enzyme, important for the activity of glutathione-conjugated antioxidant enzymes) in both liver and spleen. The drug showed an efficient antioxidant capacity in ROS-generating chemical systems; it was higher than that of fluoxetine (another type of antidepressant). The present results suggest that the good antioxidant activity of DES might contribute to its beneficial effects in liver injuries.
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Affiliation(s)
- Stefani Vircheva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria.
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Moniczewski A, Librowski T, Lochyński S, Strub D. Evaluation of the irritating influence of carane derivatives and their antioxidant properties in a deoxyribose degradation test. Pharmacol Rep 2011; 63:120-9. [PMID: 21441619 DOI: 10.1016/s1734-1140(11)70406-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2010] [Revised: 09/15/2010] [Indexed: 01/18/2023]
Abstract
Previous studies of the propranolol monoterpene derivative (-)-4-[2-hydroxy-3-(N-isopropylamino)-propoxyimino]-cis-carane hydrochloride (KP-23) and its diastereoisomers, KP-23R and KP-23S, demonstrated different effects on the cyclic AMP generating system as well as anti-inflammatory, analgesic, antihistaminic and antioxidant activity. The present study examined the influence of KP-23 and its diastereoisomers KP-23R and KP-23S on the skin-irritating activity and the mucous membrane-irritating activity as well as their influence on a late-type contact allergy in the in vivo tests. The hydroxyl radical scavenging potential of the three analogues was evaluated using their ability to inhibit Fe(II)/H2O2-induced oxidative degradation of 2-deoxyribose (2-DR) in the in vitro tests. The results obtained indicated that the hydroxyamine carane derivative did not evoke irritative changes and did not induce a late-type contact allergy in the guinea-pig. Diastereoisomers of KP-23 exhibit antioxidant properties in a dose-dependent manner and protected against OH-radicals generated from the Fenton reaction.
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Affiliation(s)
- Andrzej Moniczewski
- Department of Toxicology, Jagiellonian University, Medical College, Faculty of Pharmacy, Medyczna 9, PL 30-688 Kraków, Poland
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Oxidative stress and redox modulation potential in type 1 diabetes. Clin Dev Immunol 2011; 2011:593863. [PMID: 21647409 PMCID: PMC3102468 DOI: 10.1155/2011/593863] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2011] [Accepted: 03/09/2011] [Indexed: 12/21/2022]
Abstract
Redox reactions are imperative to preserving cellular metabolism yet must be strictly regulated. Imbalances between reactive oxygen species (ROS) and antioxidants can initiate oxidative stress, which without proper resolve, can manifest into disease. In type 1 diabetes (T1D), T-cell-mediated autoimmune destruction of pancreatic β-cells is secondary to the primary invasion of macrophages and dendritic cells (DCs) into the islets. Macrophages/DCs, however, are activated by intercellular ROS from resident pancreatic phagocytes and intracellular ROS formed after receptor-ligand interactions via redox-dependent transcription factors such as NF-κB. Activated macrophages/DCs ferry β-cell antigens specifically to pancreatic lymph nodes, where they trigger reactive T cells through synapse formation and secretion of proinflammatory cytokines and more ROS. ROS generation, therefore, is pivotal in formulating both innate and adaptive immune responses accountable for islet cell autoimmunity. The importance of ROS/oxidative stress as well as potential for redox modulation in the context of T1D will be discussed.
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Vircheva S, Alexandrova A, Georgieva A, Mateeva P, Zamfirova R, Kubera M, Kirkova M. In vivo effects of pentoxifylline on enzyme and non-enzyme antioxidant levels in rat liver after carrageenan-induced paw inflammation. Cell Biochem Funct 2011; 28:668-72. [PMID: 21104934 DOI: 10.1002/cbf.1705] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The present study aimed to investigate the effects of pentoxifylline (PTX) on the carrageenan (CG)-induced paw oedema and on the endogenous levels of cell enzyme and non-enzyme antioxidants in rat liver, 4 and 24 h after CG injection. PTX (50 mg kg(-1) , i.p.), administered 30 min before CG, decreased the paw oedema, 2-4 h after CG administration. The drug protected CG-induced decrease of glutathione (non-enzyme antioxidant) and had no effect on CG-unchanged activities of superoxide dismutase, glutathione peroxidase (enzyme antioxidants) and glucose-6-phosphate dehydrogenase (enzyme, important for the activity of GSH-conjugated antioxidant enzymes). The drug showed a good antioxidant capacity in chemical systems, generating reactive oxygen species. The present results suggest that the antioxidant activity of PTX might contribute to its beneficial effects in liver injuries.
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Affiliation(s)
- Stefani Vircheva
- Institute of Neurobiology, Bulgarian Academy of Sciences, Sofia, Bulgaria
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Doyle T, Finley A, Chen Z, Salvemini D. Role for peroxynitrite in sphingosine-1-phosphate-induced hyperalgesia in rats. Pain 2011; 152:643-648. [PMID: 21239112 DOI: 10.1016/j.pain.2010.12.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 11/05/2010] [Accepted: 12/06/2010] [Indexed: 12/22/2022]
Abstract
Sphingosine-1-phosphate (S1P) is an important mediator of inflammation recently shown in in vitro studies to increase the excitability of small-diameter sensory neurons, at least in part, via activation of the S1P(1) receptor subtype. Activation of S1PR(1) has been reported to increase the formation of nicotinamide adenine dinucleotide phosphate (NADPH) oxidase-derived superoxide (O(2)(·-)) and nitric oxide synthase (NOS)-derived nitric oxide (NO). This process favors the formation of peroxynitrite (ONOO(-) [PN]), a potent mediator of hyperalgesia associated with peripheral and central sensitization. The aims of our study were to determine whether S1P causes peripheral sensitization and thermal hyperalgesia via S1PR(1) activation and PN formation. Intraplantar injection of S1P in rats led to a time-dependent development of thermal hyperalgesia that was blocked by the S1PR(1) antagonist W146, but not its inactive enantiomer W140. The hyperalgesic effects of S1P were mimicked by intraplantar injection of the well-characterized S1PR(1) agonist SEW2871. The development of S1P-induced hyperalgesia was blocked by apocynin, a NADPH oxidase inhibitor; N(G)-nitro-l-arginine methyl ester, a nonselective NOS inhibitor; and by the potent PN decomposition catalysts (FeTM-4-PyP(5+) and MnTE-2-PyP(5+)). Our findings provide mechanistic insight into the signaling pathways engaged by S1P in the development of hyperalgesia and highlight the contribution of the S1P(1) receptor-to-PN signaling in this process. Sphingosine-1-phosphate (S1P)-induced hyperalgesia is mediated by S1P1 receptor activation and mitigated by inhibition or decomposition of peroxynitrite, providing a target pathway for novel pain management strategies.
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Affiliation(s)
- Tim Doyle
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, 1402 South Grand Blvd, St. Louis, MO 63104, USA
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Filipović MR, Koh ACW, Arbault S, Niketić V, Debus A, Schleicher U, Bogdan C, Guille M, Lemaître F, Amatore C, Ivanović-Burmazović I. Striking inflammation from both sides: manganese(II) pentaazamacrocyclic SOD mimics act also as nitric oxide dismutases: a single-cell study. Angew Chem Int Ed Engl 2010; 49:4228-32. [PMID: 20446321 DOI: 10.1002/anie.200905936] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Milos R Filipović
- Department of Chemistry and Pharmacy, University of Erlangen-Nürnberg, Egerlandstrasse 1, 91058 Erlangen, Germany.
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Involvement of nitric oxide in a rat model of carrageenin-induced pleurisy. Mediators Inflamm 2010; 2010:682879. [PMID: 20592757 PMCID: PMC2879545 DOI: 10.1155/2010/682879] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2009] [Accepted: 03/24/2010] [Indexed: 11/18/2022] Open
Abstract
Some evidence indicates that nitric oxide (NO) contributes to inflammation, while other evidence supports the opposite conclusion. To clarify the role of NO in inflammation, we studied carrageenin-induced pleurisy in rats treated with an NO donor (NOC-18), a substrate for NO formation (L-arginine), and/or an NO synthase inhibitor (S-(2-aminoethyl) isothiourea or NG-nitro-L-arginine). We assessed inflammatory cell migration, nitrite/nitrate values, lipid peroxidation and pro-inflammatory mediators. NOC-18 and L-arginine reduced the migration of inflammatory cells and edema, lowered oxidative stress, and normalized antioxidant enzyme activities. NO synthase inhibitors increased the exudate formation and inflammatory cell number, contributed to oxidative stress, induced an oxidant/antioxidant imbalance by maintaining high O2−, and enhanced the production of pro-inflammatory mediators. L-arginine and NOC-18 reversed the proinflammatory effects of NO synthase inhibitors, perhaps by reducing the expression of adhesion molecules on endothelial cells. Thus, our results indicate that NO is involved in blunting—not enhancing—the inflammatory response.
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Filipović M, Koh A, Arbault S, Niketić V, Debus A, Schleicher U, Bogdan C, Guille M, Lemaître F, Amatore C, Ivanović-Burmazović I. Striking Inflammation from Both Sides: Manganese(II) Pentaazamacrocyclic SOD Mimics Act Also as Nitric Oxide Dismutases: A Single-Cell Study. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.200905936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Targeting peroxynitrite driven nitroxidative stress with synzymes: A novel therapeutic approach in chronic pain management. Life Sci 2010; 86:604-14. [DOI: 10.1016/j.lfs.2009.06.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 06/08/2009] [Accepted: 06/09/2009] [Indexed: 01/09/2023]
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In-vivo effects of nociceptin and its structural analogue [Orn9] nociceptin on the antioxidant status of rat blood and liver after carrageenan-induced paw inflammation. Open Med (Wars) 2010. [DOI: 10.2478/s11536-009-0117-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
AbstractThe production of reactive oxygen species (ROS) in cells is well balanced with their elimination by the antioxidant defence system. This balance is essential for maintenance of physiological conditions, and its disturbance (oxidative stress) has been suggested as a potential pathogenic mechanism in a variety of diseases, accompanied by inflammation. In this study, the in-vivo effects of nociceptin (N/OFQ(1–13)NH2) and its structure analogue [Orn9]N/OFQ(1–13)NH2 were studied on markers of oxidative stress in erythrocytes and liver of rats 4 hours after subplantar administration of carrageenan (CG) (1%, 100 µl) in the right hind paw. A considerable inflammatory oedema of the paw was observed. CG did not change blood haemoglobin content, hematocrit value, glutathione level and antioxidant enzyme activities in the erythrocytes, but there was an increase in lipid peroxidation. In liver, CG-induced imbalance was manifested by an increase in lipid peroxidation and a decrease in glutathione level. Both peptides (20 µg, i.p.), when administered alone, had no effect on all parameters tested. When either [Orn9]N/OFQ(1–13)NH2 or N/OFQ(1–13)NH2 was injected simultaneously with CG or 15 minutes before it, they did not affect the CG-induced changes in the antioxidant status of the erythrocytes and liver. Our results suggest that the peptides tested did not play a role in the free radical processes that accompany CG-induced paw inflammation.
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Comhair SAA, Erzurum SC. Redox control of asthma: molecular mechanisms and therapeutic opportunities. Antioxid Redox Signal 2010; 12:93-124. [PMID: 19634987 PMCID: PMC2824520 DOI: 10.1089/ars.2008.2425] [Citation(s) in RCA: 169] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An imbalance in reducing and oxidizing (redox) systems favoring a more oxidative environment is present in asthma and linked to the pathophysiology of the defining symptoms and signs including airflow limitation, hyper-reactivity, and airway remodeling. High levels of hydrogen peroxide, nitric oxide ((*)NO), and 15-F(2t)-isoprostane in exhaled breath, and excessive oxidative protein products in lung epithelial lining fluid, peripheral blood, and urine provide abundant evidence for pathologic oxidizing processes in asthma. Parallel studies document loss of reducing potential by nonenzymatic and enzymatic antioxidants. The essential first line antioxidant enzymes superoxide dismutases (SOD) and catalase are reduced in asthma as compared to healthy individuals, with lowest levels in those patients with the most severe asthma. Loss of SOD and catalase activity is related to oxidative modifications of the enzymes, while other antioxidant gene polymorphisms are linked to susceptibility to develop asthma. Monitoring of exhaled (*)NO has entered clinical practice because it is useful to optimize asthma care, and a wide array of other biochemical oxidative and nitrative biomarkers are currently being evaluated for asthma monitoring and phenotyping. Novel therapeutic strategies that target correction of redox abnormalities show promise for the treatment of asthma.
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Affiliation(s)
- Suzy A A Comhair
- Pathobiology, Lerner Research Institute, and the Respiratory Institute, Cleveland Clinic, Cleveland, Ohio 44195, USA.
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Esposito E, Cuzzocrea S. Role of nitroso radicals as drug targets in circulatory shock. Br J Pharmacol 2009; 157:494-508. [PMID: 19630831 DOI: 10.1111/j.1476-5381.2009.00255.x] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
A vast amount of circumstantial evidence implicates oxygen-derived free radicals (especially, superoxide and hydroxyl radical) and high-energy oxidants [such as peroxynitrite (OONO(-))] as mediators of shock and ischaemia/reperfusion injury. Reactive oxygen species can initiate a wide range of toxic oxidative reactions. These include initiation of lipid peroxidation, direct inhibition of mitochondrial respiratory chain enzymes, inactivation of glyceraldehyde-3 phosphate dehydrogenase, inhibition of membrane sodium/potassium adenosine 5'-triphosphate-ase activity, inactivation of membrane sodium channels and other oxidative modifications of proteins. All these toxicities are likely to play a role in the pathophysiology of shock and ischaemia and reperfusion. Moreover, various studies have clearly shown that treatment with either OONO(-) decomposition catalysts, which selectively inhibit OONO(-), or with superoxide dismutase (SOD) mimetics, which selectively mimic the catalytic activity of the human SOD enzymes, have been shown to prevent in vivo the delayed vascular decompensation and the cellular energetic failure associated with shock and ischaemia/reperfusion injury.
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Vajragupta O, Boonchoong P, Berliner LJ. Manganese Complexes of Curcumin Analogues: Evaluation of Hydroxyl Radical Scavenging Ability, Superoxide Dismutase Activity and Stability towards Hydrolysis. Free Radic Res 2009; 38:303-14. [PMID: 15129738 DOI: 10.1080/10715760310001643339] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
In order to improve the antioxidant property of curcumin and its analogue, diacetylcurcumin, manganese was incorporated into the structures in order to enhance superoxide dismutase (SOD) activity. Manganese (Mn) complexes of curcumin (CpCpx) and diacetylcurcumin (AcylCpCpx) were synthesized and firstly investigated for SOD activity and hydroxyl radical (HO*) scavenging ability. SOD activity was evaluated by both the nitroblue tetrazolium (NBT) reduction assay and electron paramagnetic resonance (EPR) with 5,5-dimethyl-1-pyrroline-N-oxide (DMPO) as a spin trapping agent. CpCpx and AcylCpCpx inhibited the NBT reduction and decreased the DMPO/OOH adduct much greater than corresponding antioxidants or ligands, with IC50 values of 29.9 and 24.7 microM (NBT), and 1.09 and 2.40 mM (EPR), respectively. For EPR, potassium superoxide (KO2) was used as a source of O2- where qualitative results suggested that CpCpx and AcylCpCpx were SOD mimics, which catalyze the conversion of O2- to dioxygen and hydrogen peroxide (H2O2). Additionally, CpCpx and AcylCpCpx exhibited the great inhibition of DMPO/OH adduct formation with an IC50 of 0.57 and 0.37mM, respectively, which were comparable to that of curcumin (IC50 of 0.64 mM), indicating that both Mn complexes are also an effective HO* scavenger. The stability against hydrolysis in water, various buffers and human blood/serum was carried out in vitro. It was found that both Mn complexes were pH and salt concentration dependent, being more stable in basic pH. In the human blood/serum test, CpCpx was more stable against hydrolysis than AcylCpCpx with about 10 and 20% of free Mn2+ releasing, respectively.
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Affiliation(s)
- Opa Vajragupta
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Mahidol University, 447 Sri-Ayudhya Road, Bangkok 10400, Thailand.
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Effect of exogenous epidermal growth factor (EGF) on nonenzymatic antioxidant capacities and MPO activity of wound tissue. Med Chem Res 2009. [DOI: 10.1007/s00044-009-9210-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Abstract
Reactive oxygen species (ROS) scavengers have been shown to relieve persistent pain; however, the mechanism is not clearly understood. Superoxide produced from mitochondrial oxidative phosphorylation is considered the major source of ROS in neurons during excitation where mitochondrial superoxide levels are normally controlled by superoxide dismutase (SOD-2). The present study hypothesizes that capsaicin-induced secondary hyperalgesia is a consequence of superoxide build-up in spinal dorsal horn neurons and SOD-2 is a major determinant. To test this hypothesis, the spinal levels of SOD-2 activity, inactivated SOD-2 proteins, and mitochondrial superoxide were measured and correlated to the levels of capsaicin-induced secondary hyperalgesia in mice with and without SOD-2 manipulations. The data suggest that superoxide accumulation is a culprit in the abnormal sensory processing in the spinal cord in capsaicin-induced secondary hyperalgesia. Our studies also support the notion that SOD-2 nitration is a critical mechanism that maintains elevated superoxide levels in the spinal cord after capsaicin treatment. Finally, our findings suggest a therapeutic potential for the manipulation of spinal SOD-2 activity in pain conditions.
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