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Ajoolabady A, Pratico D, Ren J. Angiotensin II: Role in oxidative stress, endothelial dysfunction, and diseases. Mol Cell Endocrinol 2024; 592:112309. [PMID: 38852657 DOI: 10.1016/j.mce.2024.112309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 06/11/2024]
Abstract
Angiotensin II (Ang II) is a protein hormone capable of physiologically regulating blood pressure through diverse mechanisms. Ang II is mainly produced by the liver at homeostatic levels. However, excessive production of Ang II is closely associated with a series of pathological events in the body. The endothelial dysfunction is one of these pathological events that can drive vascular anomalies. The excessive exposure of endothelial cells (ECs) to Ang II may induce endothelial dysfunction via diverse mechanisms. One of these mechanisms is Ang II-mediated mitochondrial oxidative stress. In this mini-review, we aimed to discuss the molecular mechanisms of Ang II-mediated endothelial dysfunction through mitochondrial oxidative stress and the protective role of nitric oxide in ECs. Deciphering these mechanisms may disclose novel therapeutic strategies to prevent endothelial dysfunction and associated diseases induced by elevated leves of Ang II in the blood.
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Affiliation(s)
- Amir Ajoolabady
- Department of Biomedical Engineering, University of Alabama at Birmingham, Birmingham, AL, 35294, USA
| | - Domenico Pratico
- Alzheimer's Center at Temple, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA
| | - Jun Ren
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China; National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
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2
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Allen MF, Park SY, Kwak YS. Oxidative stress and vascular dysfunction: Potential therapeutic targets and therapies in peripheral artery disease. Microvasc Res 2024; 155:104713. [PMID: 38914307 DOI: 10.1016/j.mvr.2024.104713] [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: 11/13/2023] [Revised: 06/19/2024] [Accepted: 06/21/2024] [Indexed: 06/26/2024]
Abstract
Peripheral artery disease (PAD) is the manifestation of atherosclerosis characterized by the accumulation of plaques in the arteries of the lower limbs. Interestingly, growing evidence suggests that the pathology of PAD is multifaceted and encompasses both vascular and skeletal muscle dysfunctions, which contributes to blunted physical capabilities and diminished quality of life. Importantly, it has been suggested that many of these pathological impairments may stem from blunted reduction-oxidation (redox) handling. Of note, in those with PAD, excessive production of reactive oxygen species (ROS) outweighs antioxidant capabilities resulting in oxidative damage, which may have systemic consequences. It has been suggested that antioxidant supplementation may be able to assist in handling ROS. However, the activation of various ROS production sites makes it difficult to determine the efficacy of these antioxidant supplements. Therefore, this review focuses on the common cellular mechanisms that facilitate ROS production and discusses how excessive ROS may impair vascular and skeletal muscle function in PAD. Furthermore, we provide insight for current and potential antioxidant therapies, specifically highlighting activation of the Kelch-like ECH-associated protein 1 (Keap1) - Nuclear Factor Erythroid 2-related factor 2 (Nrf2) pathway as a potential pharmacological therapy to combat ROS accumulation and aid in vascular function, and physical performance in patients with PAD. Altogether, this review provides a better understanding of excessive ROS in the pathophysiology of PAD and enhances our perception of potential therapeutic targets that may improve vascular function, skeletal muscle function, walking capacity, and quality of life in patients with PAD.
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Affiliation(s)
- Michael F Allen
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, United States of America
| | - Song-Young Park
- School of Health and Kinesiology, University of Nebraska at Omaha, Omaha, NE, United States of America; Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE, United States of America
| | - Yi-Sub Kwak
- Department of Physical Education, College of Arts, Design, and Sports Science, Dong-Eui University, Busan, Republic of Korea.
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Ogurlu B, Hamelink TL, Van Tricht IM, Leuvenink HGD, De Borst MH, Moers C, Pool MBF. Utilizing pathophysiological concepts of ischemia-reperfusion injury to design renoprotective strategies and therapeutic interventions for normothermic ex vivo kidney perfusion. Am J Transplant 2024; 24:1110-1126. [PMID: 38184242 DOI: 10.1016/j.ajt.2024.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 12/13/2023] [Accepted: 01/01/2024] [Indexed: 01/08/2024]
Abstract
Normothermic machine perfusion (NMP) has emerged as a promising tool for the preservation, viability assessment, and repair of deceased-donor kidneys prior to transplantation. These kidneys inevitably experience a period of ischemia during donation, which leads to ischemia-reperfusion injury when NMP is subsequently commenced. Ischemia-reperfusion injury has a major impact on the renal vasculature, metabolism, oxygenation, electrolyte balance, and acid-base homeostasis. With an increased understanding of the underlying pathophysiological mechanisms, renoprotective strategies and therapeutic interventions can be devised to minimize additional injury during normothermic reperfusion, ensure the safe implementation of NMP, and improve kidney quality. This review discusses the pathophysiological alterations in the vasculature, metabolism, oxygenation, electrolyte balance, and acid-base homeostasis of deceased-donor kidneys and delineates renoprotective strategies and therapeutic interventions to mitigate renal injury and improve kidney quality during NMP.
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Affiliation(s)
- Baran Ogurlu
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands.
| | - Tim L Hamelink
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Isa M Van Tricht
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Henri G D Leuvenink
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Martin H De Borst
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Cyril Moers
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Merel B F Pool
- Department of Surgery - Organ Donation and Transplantation, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
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Etebar N, Naderpour S, Akbari S, Zali A, Akhlaghdoust M, Daghighi SM, Baghani M, Sefat F, Hamidi SH, Rahimzadegan M. Impacts of SARS-CoV-2 on brain renin angiotensin system related signaling and its subsequent complications on brain: A theoretical perspective. J Chem Neuroanat 2024; 138:102423. [PMID: 38705215 DOI: 10.1016/j.jchemneu.2024.102423] [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: 01/28/2024] [Revised: 04/08/2024] [Accepted: 04/18/2024] [Indexed: 05/07/2024]
Abstract
Cellular ACE2 (cACE2), a vital component of the renin-angiotensin system (RAS), possesses catalytic activity to maintain AngII and Ang 1-7 balance, which is necessary to prevent harmful effects of AngII/AT2R and promote protective pathways of Ang (1-7)/MasR and Ang (1-7)/AT2R. Hemostasis of the brain-RAS is essential for maintaining normal central nervous system (CNS) function. Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a viral disease that causes multi-organ dysfunction. SARS-CoV-2 mainly uses cACE2 to enter the cells and cause its downregulation. This, in turn, prevents the conversion of Ang II to Ang (1-7) and disrupts the normal balance of brain-RAS. Brain-RAS disturbances give rise to one of the pathological pathways in which SARS-CoV-2 suppresses neuroprotective pathways and induces inflammatory cytokines and reactive oxygen species. Finally, these impairments lead to neuroinflammation, neuronal injury, and neurological complications. In conclusion, the influence of RAS on various processes within the brain has significant implications for the neurological manifestations associated with COVID-19. These effects include sensory disturbances, such as olfactory and gustatory dysfunctions, as well as cerebrovascular and brain stem-related disorders, all of which are intertwined with disruptions in the RAS homeostasis of the brain.
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Affiliation(s)
- Negar Etebar
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Faculty of Pharmacy - Eastern Mediterranean University Famagusta, North Cyprus via Mersin 10, Turkey
| | - Saghi Naderpour
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Faculty of Pharmacy - Eastern Mediterranean University Famagusta, North Cyprus via Mersin 10, Turkey
| | - Setareh Akbari
- Neuroscience and Research Committee, School of Advanced Technology in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Zali
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Meisam Akhlaghdoust
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran; USERN Office, Functional Neurosurgery Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mojtaba Daghighi
- Pharmaceutical Sciences Research Center (PSRC), The Institute of Pharmaceutical Sciences (TIPS), Tehran University of Medical Sciences, Tehran, Iran
| | - Matin Baghani
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Farshid Sefat
- Department of Biomedical Engineering, School of Engineering, University of Bradford, Bradford, UK
| | - Seyed Hootan Hamidi
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Acharya BM Reddy College of Pharmacy, Rajiv Gandhi University of Health Sciences, Bangalore, India
| | - Milad Rahimzadegan
- Functional Neurosurgery Research Center, Shohada Tajrish Comprehensive Neurosurgical Center of Excellence, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Kosmachevskaya OV, Nasybullina EI, Pokidova OV, Sanina NA, Topunov AF. Effects of Nitrosyl Iron Complexes with Thiol, Phosphate, and Thiosulfate Ligands on Hemoglobin. Int J Mol Sci 2024; 25:7194. [PMID: 39000305 PMCID: PMC11241041 DOI: 10.3390/ijms25137194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/23/2024] [Accepted: 06/26/2024] [Indexed: 07/16/2024] Open
Abstract
Nitrosyl iron complexes are remarkably multifactorial pharmacological agents. These compounds have been proven to be particularly effective in treating cardiovascular and oncological diseases. We evaluated and compared the antioxidant activity of tetranitrosyl iron complexes (TNICs) with thiosulfate ligands and dinitrosyl iron complexes (DNICs) with glutathione (DNIC-GS) or phosphate (DNIC-PO4-) ligands in hemoglobin-containing systems. The studied effects included the production of free radical intermediates during hemoglobin (Hb) oxidation by tert-butyl hydroperoxide, oxidative modification of Hb, and antioxidant properties of nitrosyl iron complexes. Measuring luminol chemiluminescence revealed that the antioxidant effect of TNICs was higher compared to DNIC-PO4-. DNIC-GS either did not exhibit antioxidant activity or exerted prooxidant effects at certain concentrations, which might have resulted from thiyl radical formation. TNICs and DNIC-PO4- efficiently protected the Hb heme group from decomposition by organic hydroperoxides. DNIC-GS did not exert any protective effects on the heme group; however, it abolished oxoferrylHb generation. TNICs inhibited the formation of Hb multimeric forms more efficiently than DNICs. Thus, TNICs had more pronounced antioxidant activity than DNICs in Hb-containing systems.
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Affiliation(s)
- Olga V Kosmachevskaya
- Bach Institute of Biochemistry, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Elvira I Nasybullina
- Bach Institute of Biochemistry, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
| | - Olesya V Pokidova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Moscow Region, Chernogolovka 142432, Russia
| | - Natalia A Sanina
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Moscow Region, Chernogolovka 142432, Russia
| | - Alexey F Topunov
- Bach Institute of Biochemistry, Federal Research Center of Biotechnology, Russian Academy of Sciences, Moscow 119071, Russia
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Asadi K, Heidari R, Hamidi M, Ommati MM, Yousefzadeh-Chabok S, Samiraninezhad N, Khoshneviszadeh M, Hashemzaei M, Gholami A. Trinitroglycerin-loaded chitosan nanogels: Shedding light on cytotoxicity, antioxidativity, and antibacterial activities. Int J Biol Macromol 2024; 265:130654. [PMID: 38553395 DOI: 10.1016/j.ijbiomac.2024.130654] [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: 11/24/2023] [Revised: 02/29/2024] [Accepted: 03/04/2024] [Indexed: 04/18/2024]
Abstract
AIM AND BACKGROUND Trinitroglycerin (TNG) is a remarkable NO-releasing agent. Here, we synthesized TNG based on chitosan Nanogels (Ngs) for ameliorating complications associated with high-dose TNG administration. METHOD TNG-Ngs fabricated through ionic-gelation technique. Fourier-transformed infrared (FT-IR), zeta-potential, dynamic light scattering (DLS), and electron microscopy techniques evaluated the physicochemical properties of TNG-Ngs. MTT was used to assess the biocompatibility of TNG-Ngs, as the antioxidative properties were determined via lactate dehydrogenase (LDH), reactive oxygen species (ROS), and lipid peroxide (LPO) assays. The antibacterial activity was evaluated against Staphylococcus aureus (S. aureus), Escherichia coli (E. coli), Methicillin-resistant Staphylococcus aureus (MRSA), and vancomycin-resistant Enterococci (VRE). RESULTS Physicochemical characterization reveals that TNG-Ngs with size diameter (96.2 ± 29 nm), polydispersity index (PDI, 0.732), and negative zeta potential (-1.1 mv) were fabricated. The encapsulation efficacy (EE) and loading capacity (LC) were obtained at 71.1 % and 2.3 %, respectively, with no considerable effect on particle size and morphology. The cytotoxicity assay demonstrated that HepG2 cells exposed to TNG-Ngs showed relative cell viability (RCV) of >80 % for 70 μg/ml compared to the TNG-free drug at the same concentration (P < 0.05). TNG-Ngs showed significant differences with the TNG-free drug for LDH, LPO, and ROS formation at the same concentration (P < 0.001). The antibacterial activity of the TNG-Ngs against S. aureus, E. coli, VRE, and MRSA was higher than the TNG-free drug and Ngs (P < 0.05). CONCLUSION TNG-Ngs with enhanced antibacterial and antioxidative activity and no obvious cytotoxicity might be afforded as novel nanoformulation for promoting NO-dependent diseases.
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Affiliation(s)
- Khatereh Asadi
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Nanotechnology, School of Advanced Medical Science and Technology, Shiraz University of Medical Sciences, Shiraz, Iran; Guilan Road Trauma Research Center, Guilan University of Medical Sciences, Rasht, Iran
| | - Reza Heidari
- Pharmaceutical Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrdad Hamidi
- Department of Pharmaceutics, School of Pharmacy, Zanjan University of Medical Sciences, 45139-56184, Zanjan, Iran
| | - Mohammad Mehdi Ommati
- Henan Key Laboratory of Environmental and Animal Product Safety, College of Animal Science and Technology, Henan University of Science and Technology, Luoyang 471000, Henan, China
| | | | | | - Mehdi Khoshneviszadeh
- Medicinal and Natural Products Chemistry Research Center, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Masoud Hashemzaei
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Ahmad Gholami
- Biotechnology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Medical Nanotechnology, School of Advanced Medical Science and Technology, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Pharmaceutical Biotechnology, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran.
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Thakur MR, Tupe RS. Protective effect of colchicine on albumin glycation and cellular oxidative stress: Insights into diabetic cardiomyopathy. J Biochem Mol Toxicol 2024; 38:e23664. [PMID: 38372178 DOI: 10.1002/jbt.23664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/20/2023] [Accepted: 02/01/2024] [Indexed: 02/20/2024]
Abstract
The present work elucidates the role of colchicine (COL) on albumin glycation and cellular oxidative stress in diabetic cardiomyopathy (DCM). Human serum albumin (HSA) was glycated with methylglyoxal in the presence of COL (2.5, 3.75, and 5 µM), whereas positive and negative control samples were maintained separately. The effects of COL on HSA glycation, structural and functional modifications in glycated HSA were analyzed using different spectroscopical and fluorescence techniques. Increased fructosamine, carbonyl, and pentosidine formation in glycated HSA samples were inhibited in the presence of COL. Structural conformation of HSA and glycated HSA samples was examined by field emission scanning electron microscopy, circular dichroism, Fourier transform infrared, and proton nuclear magnetic resonance analyses, where COL maintained both secondary and tertiary structures of HSA against glycation. Functional marker assays included ABTS•+ radical scavenging and total antioxidant activities, advanced oxidative protein product formation, and turbidimetry, which showed preserved functional properties of glycated HSA in COL-containing samples. Afterward, rat cardiomyoblast (H9c2 cell line) was treated with glycated HSA-COL complex (400 μg/mL) for examining various cellular antioxidants (nitric oxide, catalase, superoxide dismutase, and glutathione) and detoxification enzymes (aldose reductase, glyoxalase I, and II) levels. All three concentrations of COL exhibited effective anti-glycation properties, enhanced cellular antioxidant levels, and detoxification enzyme activities. The report comprehensively analyzes the potential anti-glycation and properties of COL during its initial assessment.
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Affiliation(s)
- Muskan Rajkumar Thakur
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Pune, Maharashtra, India
| | - Rashmi Santosh Tupe
- Symbiosis School of Biological Sciences (SSBS), Symbiosis International (Deemed University) (SIU), Pune, Maharashtra, India
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Mathis BJ, Kato H, Matsuishi Y, Hiramatsu Y. Endogenous and exogenous protection from surgically induced reactive oxygen and nitrogen species. Surg Today 2024; 54:1-13. [PMID: 36348164 DOI: 10.1007/s00595-022-02612-6] [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: 06/26/2022] [Accepted: 10/11/2022] [Indexed: 11/09/2022]
Abstract
Surgical intervention creates reactive oxygen species through diverse molecular mechanisms, including direct stimulation of immune-mediated inflammation necessary for wound healing. However, dysregulation of redox homeostasis in surgical patients overwhelms the endogenous defense system, slowing the healing process and damaging organs. We broadly surveyed reactive oxygen species that result from surgical interventions and the endogenous and/or exogenous antioxidants that control them. This study assimilates current reports on surgical sources of reactive oxygen and nitrogen species along with literature reports on the effects of endogenous and exogenous antioxidants in human, animal, and clinical settings. Although exogenous antioxidants are generally beneficial, endogenous antioxidant systems account for over 80% of total activity, varying based on patient age, sex, and health or co-morbidity status, especially in smokers, the diabetic, and the obese. Supplementation of exogenous compounds for support in surgical patients is thus theoretically beneficial, but a lack of persuasive clinical evidence has left this potential patient support strategy without clear guidelines. A more thorough understanding of the mechanisms of exogenous antioxidants in patients with compromised health statuses and pharmacokinetic profiling may increase the utility of such support in both the operating and recovery rooms.
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Affiliation(s)
- Bryan J Mathis
- International Medical Center, University of Tsukuba Affiliated Hospital, 2-1-1 Amakubo, Tsukuba, 305-8576, Ibaraki, Japan.
| | - Hideyuki Kato
- Department of Cardiovascular Surgery, University of Tsukuba, Tsukuba, Ibaraki, Japan
| | - Yujiro Matsuishi
- Department of Neuroscience Nursing, St. Luke's International University, Tokyo, Japan
| | - Yuji Hiramatsu
- Department of Cardiovascular Surgery, University of Tsukuba, Tsukuba, Ibaraki, Japan
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Shumaev KB, Kosmachevskaya OV, Nasybullina EI, Ruuge EK, Kalenikova EI, Topunov AF. Histidine-Bound Dinitrosyl Iron Complexes: Antioxidant and Antiradical Properties. Int J Mol Sci 2023; 24:17236. [PMID: 38139065 PMCID: PMC10744092 DOI: 10.3390/ijms242417236] [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: 10/29/2023] [Revised: 11/30/2023] [Accepted: 12/04/2023] [Indexed: 12/24/2023] Open
Abstract
Dinitrosyl iron complexes (DNICs) are important physiological derivatives of nitric oxide. These complexes have a wide range of biological activities, with antioxidant and antiradical ones being of particular interest and importance. We studied the interaction between DNICs associated with the dipeptide L-carnosine or serum albumin and prooxidants under conditions mimicking oxidative stress. The ligands of these DNICs were histidine residues of carnosine or His39 and Cys34 in bovine serum albumin. Carnosine-bound DNICs reduced the level of piperazine free radicals in the reaction system containing tert-butyl hydroperoxide (t-BOOH), bivalent iron ions, a nitroxyl anion donor (Angeli's salt), and HEPES buffer. The ability of carnosine DNICs to intercept organic free radicals produced from t-BOOH decay could lead to this effect. In addition, carnosine DNICs reacted with the superoxide anion radical (O2•-) formed in the xanthine/xanthine oxidase enzymatic system. They also reduced the oxoferryl form of the heme group formed in the reaction of myoglobin with t-BOOH. DNICs associated with serum albumin were found to be rapidly destroyed in a model system containing metmyoglobin and t-BOOH. At the same time, these protein DNICs inhibited the t-BOOH-induced oxidative degradation of coenzymes Q9 and Q10 in rat myocardial homogenate. The possible mechanisms of the antioxidant and antiradical action of the DNICs studied and their role in the metabolism of reactive oxygen and nitrogen species are discussed.
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Affiliation(s)
- Konstantin B. Shumaev
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Olga V. Kosmachevskaya
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Elvira I. Nasybullina
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
| | - Enno K. Ruuge
- E.I. Chazov National Medical Research Center of Cardiology, 121552 Moscow, Russia;
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Elena I. Kalenikova
- Faculty of Fundamental Medicine, Lomonosov Moscow State University, 119991 Moscow, Russia;
| | - Alexey F. Topunov
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, 119071 Moscow, Russia; (K.B.S.); (O.V.K.); (E.I.N.)
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Rajendran NK, Liu W, Cahill PA, Redmond EM. Alcohol and vascular endothelial function: Biphasic effect highlights the importance of dose. ALCOHOL, CLINICAL & EXPERIMENTAL RESEARCH 2023; 47:1467-1477. [PMID: 37369447 PMCID: PMC10751391 DOI: 10.1111/acer.15138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 06/13/2023] [Accepted: 06/18/2023] [Indexed: 06/29/2023]
Abstract
BACKGROUND Alcohol (ethanol) consumption has different influences on arterial disease, being protective or harmful depending on the amount and pattern of consumption. The mechanisms mediating these biphasic effects are unknown. Whereas endothelial cells play a critical role in maintaining arterial health, this study compared the effects of moderate and high alcohol concentrations on endothelial cell function. METHODS Human coronary artery endothelial cells (HCAEC) were treated with levels of ethanol associated with either low-risk/moderate drinking (i.e., 25 mM) or high-risk/heavy drinking (i.e., 50 mM) after which endothelial function was assessed. The effect of ethanol's primary metabolite acetaldehyde (10 and 25 μM) was also determined. RESULTS Moderate ethanol exposure (25 mM) improved HCAEC barrier integrity as determined by increased transendothelial electrical resistance (TEER), inhibited cell adhesion molecule (CAM) mRNA expression, decreased inflammatory cytokine (interferon-γ and interleukin 6) production, inhibited monocyte chemotactic protein-1 (MCP-1) expression and monocyte adhesion, and increased homeostatic Notch signaling. In contrast, exposure to high-level ethanol (50 mM) decreased TEER, increased CAM expression and inflammatory cytokine production, and stimulated MCP-1 and monocyte adhesion, with no effect on Notch signaling. Reactive oxygen species (ROS) generation and endothelial nitric oxide synthase activity were increased by both alcohol treatments, and to a greater extent in the 50 mM ethanol group. Acetaldehyde-elicited responses were generally the same as those of the high-level ethanol group. CONCLUSIONS Ethanol has biphasic effects on several endothelial functions such that a moderate level maintains the endothelium in a nonactivated state, whereas high-level ethanol causes endothelial dysfunction, as does acetaldehyde. These data show the importance of dose when considering ethanol's effects on arterial endothelium, and could explain, in part, the J-shaped relationship between alcohol concentration and atherosclerosis reported in some epidemiologic studies.
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Affiliation(s)
- Naresh K Rajendran
- Department of Surgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Weimin Liu
- Department of Surgery, University of Rochester Medical Center, Rochester, New York, USA
| | - Paul A Cahill
- Vascular Biology and Therapeutics Laboratory, School of Biotechnology, Dublin City University, Dublin, Ireland
| | - Eileen M Redmond
- Department of Surgery, University of Rochester Medical Center, Rochester, New York, USA
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Yazlık MO, Mutluer İ, Kaya U, Özkan H, Müştak İB, Çolakoğlu HE, Altınbaş YF, Vural MR. The role of nutritional-immunological indices in estimating serum LPS and antioxidant enzyme activity and sepsis status in female dogs with pyometra caused by E. coli. Anim Reprod Sci 2023; 255:107276. [PMID: 37300916 DOI: 10.1016/j.anireprosci.2023.107276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/18/2023] [Accepted: 06/05/2023] [Indexed: 06/12/2023]
Abstract
The aim of this study was to diagnose pyometra and related sepsis status using cost-effective nutritional-immunological indices, antioxidants, and toxin levels in dogs and to investigate the utility of the indices in predicting toxin and antioxidant status. A total of 29 dogs were enrolled into the present study. Among these, 9 female dogs in their diestrus stages, were allocated for elective ovariohysterectomy. The pyometra group was also separated into two subgroups as Sepsis (+) and Sepsis (-). Blood samples were collected into two tubes containing EDTA for hematological analysis; without anticoagulant for serum progesterone, LPS concentration, and antioxidant levels at the time of diagnosis. Bacteriological and tissue samples of the uterus were collected after the ovariohysterectomy. Antioxidant activity, progesterone, and toxin concentration were determined by using commercial ELISA kits. Statistical analyses were performed using Stata version 16.1 and MedCalc 16 statistical software. Receiver operating characteristics curves were used for the threshold for evaluating pyometra and sepsis status. Pairwise comparisons were carried out of the area under the curve (AUC) for thresholds of nutritional immunologic indices (hemoglobin, albumin, lymphocyte, platelet (HALP) score; prognostic nutritional index (PNI); Albumin hemoglobin index (AHI)), serum LPS and antioxidant activity. Linear regression model was used for the estimation of serum LPS and antioxidant activity by using indices. Mean serum progesterone, LPS concentrations, and Nitric Oxide (NO) production were greater, while serum superoxide dismutase (SOD), tissue SOD, and glutathione peroxidase (GPx) activities were lower in dogs with pyometra. All nutritional-immunologic indices were lower in pyometra cases. Nutritional-immunologic indices (AUC of HALP:0.759; PNI:0.981; AHI 0.994), NO (AUC: 0.787) and SOD (AUC: 0.784) levels were useful for pyometra diagnosis. AHI and LPS were useful for the determination of sepsis status with the AUC values of 0.850 and 0.740, respectively. While AHI was useful for the estimation of serum LPS and NO concentration (p < 0.001), PNI was useful for serum SOD concentration (p = 0.003). In conclusion, PNI, HALP and AHI can be used in the diagnosis of pyometra, however, only AHI and LPS levels can be used in the diagnosis of sepsis. SOD and NO can be used to determine pyometra but have no effect on determining sepsis status. Additionally, the estimation of the levels of serum LPS, NO, and SOD activities can be done using the AHI and PNI values.
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Affiliation(s)
- Murat Onur Yazlık
- Ankara University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, 06110 Ankara, Turkiye.
| | - İpek Mutluer
- Ankara University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, 06110 Ankara, Turkiye
| | - Ufuk Kaya
- Hatay Mustafa Kemal University, Faculty of Veterinary Medicine, Department of Biostatistics, 31060 Hatay, Turkiye
| | - Hüseyin Özkan
- Hatay Mustafa Kemal University, Faculty of Veterinary Medicine, Department of Genetics, 31060 Hatay, Turkiye
| | - İnci Başak Müştak
- Ankara University Faculty of Veterinary Medicine Department of Microbiology, 06110 Ankara, Turkiye
| | - Hatice Esra Çolakoğlu
- Ankara University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, 06110 Ankara, Turkiye
| | - Yunus Furkan Altınbaş
- Ankara University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, 06110 Ankara, Turkiye
| | - Mehmet Rıfat Vural
- Ankara University, Faculty of Veterinary Medicine, Department of Obstetrics and Gynecology, 06110 Ankara, Turkiye.
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Duraiyarasu M, Kumaran SS, Mayilmurugan R. Alkyl Chain Appended Fe(III) Catecholate Complex as a Dual-Modal T1 MRI-NIR Fluorescence Imaging Agent via Second Sphere Water Interactions. ACS Biomater Sci Eng 2023. [PMID: 37141045 DOI: 10.1021/acsbiomaterials.3c00203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The C12-alkyl chain-conjugated Fe(III) catecholate complex [Fe(C12CAT)3]3-, Fe(C12CAT)3 [C12CAT = N-(3,4-dihydroxyphenethyl)dodecanamide], was synthesized and characterized, reported as a dual-modal T1-MRI and an optical imaging probe. The DFT-optimized structure of Fe(C12CAT)3 reveals a distorted octahedral coordination geometry around the high spin Fe(III) center. The formation constant (-log K) of Fe(C12CAT)3 was calculated as 45.4. The complex exhibited r1-relaxivity values of 2.31 ± 0.12 and 1.52 ± 0.06 mM-1 s-1 at 25 and 37 °C, respectively, on 1.41 T at pH 7.3 via second-sphere water interactions. The interaction of Fe(C12CAT)3 with human serum albumin showed concomitant enhancement of r1-relaxivity to 6.44 ± 0.15 mM-1 s-1. The MR phantom images are significantly brighter and directly correlate to the concentration of Fe(C12CAT)3. Adding an external fluorescent marker IR780 dye to Fe(C12CAT)3 leads to the formation of self-assembly by C12-alkyl chains. It resulted in the fluorescence quenching of the dye, and its critical aggregation concentration was calculated as 70 μM. The aggregated matrix of Fe(C12CAT)3 and IR780 dye is spherical, with an average hydrodynamic diameter of 189.5 nm. This self-assembled supramolecular system is found to be non-fluorescent and was "turn-on" under acidic pH via dissociation of aggregates. The r1-relaxivity is found to be unchanged during the matrix aggregation and disaggregation. The probe showed MRI ON and fluorescent OFF under physiological conditions and MRI ON and fluorescent ON under acidic pH. The cell viability experiments showed that the cells are 80% viable at 1 mM probe concentration. Fluorescence experiments and MR phantom images showed that Fe(C12CAT)3 is a potential dual model imaging probe to visualize the acidic pH environment of the cells.
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Affiliation(s)
- Maheshwaran Duraiyarasu
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
| | - S Senthil Kumaran
- Department of NMR, All India Institute of Medical Sciences, Ansari Nagar, New Delhi 110 029, India
| | - Ramasamy Mayilmurugan
- Department of Chemistry, and Department of Bioscience & Biomedical Engineering, Indian Institute of Technology Bhilai, Raipur, Chattisgarh 492015, India
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Payne A, Taka E, Adinew GM, Soliman KFA. Molecular Mechanisms of the Anti-Inflammatory Effects of Epigallocatechin 3-Gallate (EGCG) in LPS-Activated BV-2 Microglia Cells. Brain Sci 2023; 13:632. [PMID: 37190597 PMCID: PMC10137201 DOI: 10.3390/brainsci13040632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 03/29/2023] [Accepted: 04/04/2023] [Indexed: 05/17/2023] Open
Abstract
Chronic neuroinflammation is associated with many neurodegenerative diseases, such as Alzheimer's. Microglia are the brain's primary immune cells, and when activated, they release various proinflammatory cytokines. Several natural compounds with anti-inflammatory and antioxidant properties, such as epigallocatechin 3-gallate (EGCG), may provide a promising strategy for inflammation-related neurodegenerative diseases involving activated microglia cells. The objective of the current study was to examine the molecular targets underlying the anti-inflammatory effects of EGCG in activated microglia cells. BV-2 microglia cells were grown, stimulated, and treated with EGCG. Cytotoxicity and nitric oxide (NO) production were evaluated. Immunoassay, PCR array, and WES™ Technology were utilized to evaluate inflammatory, neuroprotective modulators as well as signaling pathways involved in the mechanistic action of neuroinflammation. Our findings showed that EGCG significantly inhibited proinflammatory mediator NO production in LPS-stimulated BV-2 microglia cells. In addition, ELISA analysis revealed that EGCG significantly decreases the release of proinflammatory cytokine IL-6 while it increases the release of TNF-α. PCR array analysis showed that EGCG downregulated MIF, CCL-2, and CSF2. It also upregulated IL-3, IL-11, and TNFS10. Furthermore, the analysis of inflammatory signaling pathways showed that EGCG significantly downregulated mRNA expression of mTOR, NF-κB2, STAT1, Akt3, CCL5, and SMAD3 while significantly upregulating the expression of mRNA of Ins2, Pld2, A20/TNFAIP3, and GAB1. Additionally, EGCG reduced the relative protein expression of NF-κB2, mTOR, and Akt3. These findings suggest that EGCG may be used for its anti-inflammatory effects to prevent neurodegenerative diseases.
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Affiliation(s)
| | | | | | - Karam F. A. Soliman
- Division of Pharmaceutical Sciences, College of Pharmacy and Pharmaceutical Sciences, Institute of Public Health (COPPS, IPH), Florida A&M University, Tallahassee, FL 32307, USA
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Marocolo M, Hohl R, Arriel RA, Mota GR. Ischemic preconditioning and exercise performance: are the psychophysiological responses underestimated? Eur J Appl Physiol 2023; 123:683-693. [PMID: 36478078 DOI: 10.1007/s00421-022-05109-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Accepted: 11/28/2022] [Indexed: 12/12/2022]
Abstract
The findings of the ischemic preconditioning (IPC) on exercise performance are mixed regarding types of exercise, protocols and participants' training status. Additionally, studies comparing IPC with sham (i.e., low-pressure cuff) and/or control (i.e., no cuff) interventions are contentious. While studies comparing IPC versus a control group generally show an IPC significant effect on performance, sham interventions show the same performance improvement. Thus, the controversy over IPC ergogenic effect may be due to limited discussion on the psychophysiological mechanisms underlying cuff maneuvers. Psychophysiology is the study of the interrelationships between mind, body and behavior, and mental processes are the result of the architecture of the nervous system and voluntary exercise is a behavior controlled by the central command modulated by sensory inputs. Therefore, this narrative review aims to associate potential IPC-induced positive effects on performance with sensorimotor pathways (e.g., sham influencing bidirectional body-brain integration), hemodynamic and metabolic changes (i.e., blood flow occlusion reperfusion cycles). Overall, IPC and sham-induced mechanisms on exercise performance may be due to a bidirectional body-brain integration of muscle sensory feedback to the central command resulting in delayed time to exhaustion, alterations on perceptions and behavior. Additionally, hemodynamic responses and higher muscle oxygen extraction may justify the benefits of IPC on muscle contractile function.
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Affiliation(s)
- Moacir Marocolo
- Department of Physiology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil.
| | - Rodrigo Hohl
- Department of Physiology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Rhaí André Arriel
- Department of Physiology, Federal University of Juiz de Fora, Juiz de Fora, Minas Gerais, Brazil
| | - Gustavo R Mota
- Exercise Science, Health and Human Performance Research Group, Department of Sport Sciences, Institute of Health Sciences, Federal University of Triângulo Mineiro, Uberaba, Minas Gerais, Brazil
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15
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Song YS, Jamali N, Sorenson CM, Sheibani N. Vitamin D Receptor Expression Limits the Angiogenic and Inflammatory Properties of Retinal Endothelial Cells. Cells 2023; 12:335. [PMID: 36672270 PMCID: PMC9856450 DOI: 10.3390/cells12020335] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 01/11/2023] [Accepted: 01/13/2023] [Indexed: 01/18/2023] Open
Abstract
The integrity of retinal endothelial cell (EC) is essential for establishing and maintaining the retinal blood barrier to ensure proper vision. Vitamin D is a hormone with known protective roles in EC function. The majority of vitamin D action is mediated through the vitamin D receptor (VDR). VDR is a nuclear receptor whose engagement by vitamin D impacts the expression of many genes with important roles in regulation of angiogenesis and inflammation. Although many studies have investigated vitamin D-VDR action in cardiovascular protection and tumor angiogenesis, its impact on retinal EC function and regulation of ocular angiogenesis and inflammation is exceedingly limited. We previously showed calcitriol, the active form of vitamin D, is a potent inhibitor of retinal neovascularization in vivo and retinal EC capillary morphogenesis in vitro. Here, using retinal EC prepared from wild-type (Vdr+/+) and VDR-deficient (Vdr-/-) mice, we show that retinal EC express VDR and its expression is induced by calcitriol. The lack of VDR expression had a significant impact on endothelial cell-cell and cell-matrix interactions. Vdr-/- retinal EC proliferated at a slower rate and were more adherent and less migratory. They also exhibited increased expression levels of inflammatory markers driven in part by sustained activation of STAT1 and NF-κB pathways and were more sensitive to oxidative challenge. These changes were attributed, in part, to down-regulation of endothelial nitric oxide synthetase, enhanced hepcidin expression, and increased intracellular iron levels. Taken together, our results indicate that VDR expression plays a fundamental role in maintaining the proper angiogenic and inflammatory state of retinal EC.
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Affiliation(s)
- Yong-Seok Song
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Nasim Jamali
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Christine M. Sorenson
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
| | - Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- McPherson Eye Research Institute, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53705, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI 53705, USA
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16
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Ming H, Zhang K, Ge S, Shi Y, Du C, Guo X, Zhang L. A Mini Review of S-Nitrosoglutathione Loaded Nano/Micro-Formulation Strategies. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:224. [PMID: 36677977 PMCID: PMC9863240 DOI: 10.3390/nano13020224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/01/2023] [Accepted: 01/02/2023] [Indexed: 06/17/2023]
Abstract
As a potential therapeutic agent, the clinical application of S-nitrosoglutathione (GSNO) is limited because of its instability. Therefore, different formulations have been developed to protect GSNO from degradation, delivery and the release of GSNO at a physiological concentration in the active position. Due to the high water-solubility and small molecular-size of GSNO, the biggest challenges in the encapsulation step are low encapsulation efficiency and burst release. This review summarizes the different nano/micro-formulation strategies of a GSNO related delivery system to provide references for subsequent researchers interested in GSNO encapsulation.
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Affiliation(s)
- Hui Ming
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Kunpeng Zhang
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Shengbo Ge
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yang Shi
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chunan Du
- Faculty of Chemical Engineering, Shandong Institute of Petroleum and Chemical Technology, Dongying 257000, China
| | - Xuqiang Guo
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
| | - Libo Zhang
- State Key Laboratory of Heavy Oil Processing, College of Engineering, China University of Petroleum-Beijing at Karamay, Karamay 834000, China
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17
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Poletaeva DA, Soldatova YV, Smolina AV, Savushkin MA, Klimanova EN, Sanina NA, Faingold II. The Influence of Cationic Nitrosyl Iron Complex with Penicillamine Ligands on Model Membranes, Membrane-Bound Enzymes and Lipid Peroxidation. MEMBRANES 2022; 12:membranes12111088. [PMID: 36363643 PMCID: PMC9694463 DOI: 10.3390/membranes12111088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/24/2022] [Accepted: 10/30/2022] [Indexed: 06/01/2023]
Abstract
This paper shows the biological effects of cationic binuclear tetranitrosyl iron complex with penicillamine ligands (TNIC-PA). Interaction with a model membrane was assessed using a fluorescent probes technique. Antioxidant activity was studied using a thiobarbituric acid reactive species assay (TBARS) and a chemiluminescence assay. The catalytic activity of monoamine oxidase (MAO) was determined by measuring liberation of ammonia. Antiglycation activity was determined fluometrically by thermal glycation of albumine by D-glucose. The higher values of Stern-Volmer constants (KSV) obtained for the pyrene located in hydrophobic regions (3.9 × 104 M-1) compared to KSV obtained for eosin Y located in the polar headgroup region (0.9 × 104 M-1) confirms that TNIC-PA molecules prefer to be located in the hydrophobic acyl chain region, close to the glycerol group of lipid molecules. TNIC-PA effectively inhibited the process of spontaneous lipid peroxidation, due to additive contributions from releasing NO and penicillamine ligand (IC50 = 21.4 µM) and quenched luminol chemiluminescence (IC50 = 3.6 μM). High activity of TNIC-PA in both tests allows us to assume a significant role of its radical-scavenging activity in the realization of antioxidant activity. It was shown that TNIC-PA (50-1000 μM) selectively inhibits the membrane-bound enzyme MAO-A, a major source of ROS in the heart. In addition, TNIC-PA is an effective inhibitor of non-enzymatic protein glycation. Thus, the evaluated biological effects of TNIC-PA open up the possibility of its practical application in chemotherapy for socially significant diseases, especially cardiovascular diseases.
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Affiliation(s)
- Darya A. Poletaeva
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
| | - Yuliya V. Soldatova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
| | - Anastasiya V. Smolina
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
| | - Maxim A. Savushkin
- Faculty of Fundamental Physical and Chemical Engineering, Moscow State University, 1142432 Moscow, Russia
| | - Elena N. Klimanova
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
| | - Nataliya A. Sanina
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
- Medicinal Chemistry Research and Education Center, Moscow Region State University, 1142432 Mytishchy, Russia
| | - Irina I. Faingold
- Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences, Academician Semenov Avenue, 1142432 Chernogolovka, Russia
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18
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Kosmachevskaya OV, Nasybullina EI, Pugachenko IS, Novikova NN, Topunov AF. Antiglycation and Antioxidant Effect of Nitroxyl towards Hemoglobin. Antioxidants (Basel) 2022; 11:antiox11102007. [PMID: 36290730 PMCID: PMC9599031 DOI: 10.3390/antiox11102007] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 01/17/2023] Open
Abstract
Donors of nitroxyl and nitroxyl anion (HNO/NO−) are considered to be promising pharmacological treatments with a wide range of applications. Remarkable chemical properties allow nitroxyl to function as a classic antioxidant. We assume that HNO/NO− can level down the non-enzymatic glycation of biomolecules. Since erythrocyte hemoglobin (Hb) is highly susceptible to non-enzymatic glycation, we studied the effect of a nitroxyl donor, Angeli’s salt, on Hb modification with methylglyoxal (MG) and organic peroxide―tert-butyl hydroperoxide (t-BOOH). Nitroxyl dose-dependently decreased the amount of protein carbonyls and advanced glycation end products (AGEs) that were formed in the case of Hb incubation with MG. Likewise, nitroxyl effectively protected Hb against oxidative modification with t-BOOH. It slowed down the destruction of heme, formation of carbonyl derivatives and inter-subunit cross-linking. The protective effect of nitroxyl on Hb in this system is primarily associated with nitrosylation of oxidized Hb and reduction of its ferryl form, which lowers the yield of free radical products. We suppose that the dual (antioxidant and antiglycation) effect of nitroxyl makes its application possible as part of an additional treatment strategy for oxidative and carbonyl stress-associated diseases.
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Affiliation(s)
- Olga V. Kosmachevskaya
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Elvira I. Nasybullina
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | - Igor S. Pugachenko
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
| | | | - Alexey F. Topunov
- Bach Institute of Biochemistry, Research Center of Biotechnology of the Russian Academy of Sciences, 119071 Moscow, Russia
- Correspondence: ; Tel.: +7-916-157-6367
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C3d(g), iron nanoparticles, hemin and cytochrome c may induce oxidative cytotoxicity in tumors and reduce tumor-associated myeloid cells-mediated immunosuppression. Med Hypotheses 2022. [DOI: 10.1016/j.mehy.2022.110944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Santos-Gomes J, Gandra I, Adão R, Perros F, Brás-Silva C. An Overview of Circulating Pulmonary Arterial Hypertension Biomarkers. Front Cardiovasc Med 2022; 9:924873. [PMID: 35911521 PMCID: PMC9333554 DOI: 10.3389/fcvm.2022.924873] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Abstract
Pulmonary arterial hypertension (PAH), also known as Group 1 Pulmonary Hypertension (PH), is a PH subset characterized by pulmonary vascular remodeling and pulmonary arterial obstruction. PAH has an estimated incidence of 15-50 people per million in the United States and Europe, and is associated with high mortality and morbidity, with patients' survival time after diagnosis being only 2.8 years. According to current guidelines, right heart catheterization is the gold standard for diagnostic and prognostic evaluation of PAH patients. However, this technique is highly invasive, so it is not used in routine clinical practice or patient follow-up. Thereby, it is essential to find new non-invasive strategies for evaluating disease progression. Biomarkers can be an effective solution for determining PAH patient prognosis and response to therapy, and aiding in diagnostic efforts, so long as their detection is non-invasive, easy, and objective. This review aims to clarify and describe some of the potential new candidates as circulating biomarkers of PAH.
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Affiliation(s)
- Joana Santos-Gomes
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Inês Gandra
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Rui Adão
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
| | - Frédéric Perros
- Paris-Porto Pulmonary Hypertension Collaborative Laboratory (3PH), UMR_S 999, INSERM, Université Paris-Saclay, Paris, France
- Université Paris–Saclay, AP-HP, INSERM UMR_S 999, Service de Pneumologie et Soins Intensifs Respiratoires, Hôpital de Bicêtre, Le Kremlin Bicêtre, France
| | - Carmen Brás-Silva
- UnIC@RISE, Department of Surgery and Physiology, Faculty of Medicine of the University of Porto, Porto, Portugal
- Faculty of Nutrition and Food Sciences, University of Porto, Porto, Portugal
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Chera EI, Pop TI, Pop RM, Pârvu M, Uifălean A, Cătoi FA, Cecan AD, Mîrza CM, Achimaș-Cadariu P, Pârvu AE. Flaxseed Ethanol Extract Effect in Acute Experimental Inflammation. Medicina (B Aires) 2022; 58:medicina58050582. [PMID: 35629999 PMCID: PMC9146081 DOI: 10.3390/medicina58050582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 04/19/2022] [Accepted: 04/21/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Objectives: Previous studies demonstrated antioxidant activities for flaxseed and flaxseed oil. The aim of the present study was to evaluate the prophylactic and therapeutic anti-inflammatory and antioxidant effects of flaxseed ethanol extract in acute experimental inflammation. Materials and Methods: The in vivo anti-inflammatory and antioxidant activity was evaluated on a turpentine-induced acute inflammation (6 mL/kg BW, i.m.) by measuring serum total oxidative status, total antioxidant reactivity, oxidative stress index, malondialdehyde, total thiols, total nitrites, 3-nitrotyrosine, and NFkB. The experiment was performed on nine groups (n = 5) of male rats: negative control; inflammation; three groups with seven days of flaxseed extract (100%, 50%, 25%) pretreatment followed by inflammation on day eight; three groups of inflammation followed by seven days of treatment with flaxseed extract (100%, 50%, 25%); inflammation followed by seven days of treatment with diclofenac (20 mg/kg BW). Results: Flaxseed extract anti-inflammatory activity was better in the therapeutic plan than in the prophylactic one, and consisted of NO, 3NT, and NF-κB reduction in a dose dependent way. ROS was reduced better in the therapeutic flaxseed extracts administration, and antioxidants were increased by the prophylactic flaxseed extracts administration. Both, ROS and antioxidants were influenced more by the total flaxseed extract, which was also more efficient than diclofenac. Conclusions: flaxseed extract prophylaxis has a useful antioxidant activity by increasing the antioxidants, and flaxseed extract therapy has anti-inflammatory and antioxidant activities by reducing NF-κB, RNS, and ROS.
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Affiliation(s)
- Elisabeta Ioana Chera
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
| | - Tiberia Ioana Pop
- Department of Technical and Soil Sciences, Faculty of Agriculture, University of Agricultural Sciences and Veterinary Medicine, 400012 Cluj-Napoca, Romania
- Correspondence: (T.I.P.); (R.M.P.); Tel.: +40-736-477327 (T.I.P.); +40-746-692265 (R.M.P.)
| | - Raluca Maria Pop
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Iuliu Haţieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania
- Correspondence: (T.I.P.); (R.M.P.); Tel.: +40-736-477327 (T.I.P.); +40-746-692265 (R.M.P.)
| | - Marcel Pârvu
- Faculty of Biology and Geology, Babeș-Bolyai University, 400012 Cluj-Napoca, Romania;
| | - Ana Uifălean
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
| | - Florinela Adriana Cătoi
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
| | - Andra Diana Cecan
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
| | - Camelia Manuela Mîrza
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
| | - Patriciu Achimaș-Cadariu
- Department of Oncology, University of Medicine and Pharmacy Iuliu Hațieganu, 400012 Cluj-Napoca, Romania;
| | - Alina Elena Pârvu
- Department of Pathophysiology, Iuliu Hațieganu University of Medicine and Pharmacy, 400012 Cluj-Napoca, Romania; (E.I.C.); (A.U.); (F.A.C.); (A.D.C.); (C.M.M.); (A.E.P.)
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22
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Nascimento ÍF, Souza SSD, da Luz TM, Gomes LAS, Gonçalves SDO, Ahmed MAI, Guimarães ATB, Rodrigues ASDL, Malafaia G. Steel wools microfibers causes iron overload and induces biochemical changes in Gallus gallus domesticus chicks (Galliformes: Phasianidae). CHEMOSPHERE 2022; 293:133632. [PMID: 35033516 DOI: 10.1016/j.chemosphere.2022.133632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
Steel wool (SW) has a broad-spectrum of applicability, particularly as abrasives, cleaning household utensils and surfaces in general. However, when present in the natural environment, they can be ingested by animals, such as birds, and may represent a risk to the survival of individuals. Accordingly, in this study, we attempted the hypothesis that the ingestion of SW microfibers (SWMs) by Gallus gallus domesticus chicks (model system used) alters growth/development, induces redox imbalance and cholinesterasic effect, as well as promotes iron overload in different organs. For this, the animals received SWMs twice (within a 24-h interval) in an amount corresponding to 12% of their total stomach volume. At the end of the experiment, we observed less weight gain and less head growth, increased production of hydrogen peroxide (in the brain, liver, crop, and gizzard), nitrite (liver, crop, proventriculus and gizzard), malondialdehyde (brain, liver, muscle, proventriculus, and gizzard), along with increased superoxide dismutase activity in the liver, muscle and crop of animals exposed to SWMs. Such results were associated with iron overload observed in different organs, especially in liver, crop, and gizzard. Furthermore, we evidenced an anti-cholinesterasic effect in birds that ingested the SWMs, marked by a reduction in the acetylcholinesterase activity (in brain). Thus, our study sheds light on the (eco)toxicological potential of SWMs in avifauna, conceding us to associate their ingestion (despite ephemeral and occasional) with damage to the health of individuals, requiring a greater attention spotted to disposal of these materials in ecosystems.
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Affiliation(s)
- Ítalo Freitas Nascimento
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Sindoval Silva de Souza
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Thiarlen Marinho da Luz
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Lux Attiê Santos Gomes
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Sandy de Oliveira Gonçalves
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | | | - Abraão Tiago Batista Guimarães
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, GO, Brazil
| | - Aline Sueli de Lima Rodrigues
- Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil
| | - Guilherme Malafaia
- Laboratório de Pesquisas Biológicas, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Conservação de Recursos Naturais do Cerrado, Instituto Federal de Educação, Ciência e Tecnologia Goiano, Campus Urutaí, GO, Brazil; Programa de Pós-Graduação em Biotecnologia e Biodiversidade, Universidade Federal de Goiás, GO, Brazil; Programa de Pós-Graduação em Ecologia, Conservação e Biodiversidade, Universidade Federal de Uberlândia, MG, Brazil.
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23
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Dar HH, Anthonymuthu TS, Ponomareva LA, Souryavong AB, Shurin GV, Kapralov AO, Tyurin VA, Lee JS, Mallampalli RK, Wenzel SE, Bayir H, Kagan VE. A new thiol-independent mechanism of epithelial host defense against Pseudomonas aeruginosa: iNOS/NO • sabotage of theft-ferroptosis. Redox Biol 2021; 45:102045. [PMID: 34167028 PMCID: PMC8227829 DOI: 10.1016/j.redox.2021.102045] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/04/2021] [Accepted: 06/11/2021] [Indexed: 01/16/2023] Open
Abstract
Ferroptosis is a redox-driven type of regulated cell death program arising from maladaptation of three metabolic pathways: glutathione homeostasis, iron handling and lipid peroxidation. Though GSH/Gpx4 is the predominant system detoxifying phospholipid hydroperoxides (PLOOH) in mammalian cells, recently Gpx4-independent regulators of ferroptosis like ferroptosis suppressor protein 1 (FSP1) in resistant cancer lines and iNOS/NO• in M1 macrophages have been discovered. We previously reported that Pseudomonas aeruginosa (PA) utilizes its 15- lipoxygenase (pLoxA) to trigger ferroptotic death in epithelial cells by oxidizing the host arachidonoyl-phosphatidylethanolamine (ETE-PE) into pro-ferroptotic 15-hydroperoxy- arachidonyl-PE (15-HpETE-PE). Here we demonstrate that PA degrades the host GPx4 defense by activating the lysosomal chaperone-mediated autophagy (CMA). In response, the host stimulates the iNOS/NO•-driven anti-ferroptotic mechanism to stymie lipid peroxidation and protect GPx4/GSH-deficient cells. By using a co-culture model system, we showed that macrophage-produced NO• can distantly prevent PA stimulated ferroptosis in epithelial cells as an inter-cellular mechanism. We further established that suppression of ferroptosis in epithelial cells by NO• is enabled through the suppression of phospholipid peroxidation, particularly the production of pro-ferroptotic 15-HpETE-PE signals. Pharmacological targeting of iNOS (NO• generation) attenuated its anti-ferroptotic function. In conclusion, our findings define a new inter-cellular ferroptosis suppression mechanism which may represent a new strategy of the host against P. aeruginosa induced theft-ferroptosis.
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Affiliation(s)
- Haider H Dar
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Tamil S Anthonymuthu
- Department of Critical Care Medicine, Safar Center for Resuscitation Research, Children's Neuroscience Institute, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
| | - Liubov A Ponomareva
- Institute for Regenerative Medicine, IM Sechenov Moscow State Medical University, Moscow, Russia
| | - Austin B Souryavong
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Galina V Shurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Alexandr O Kapralov
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Vladimir A Tyurin
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Janet S Lee
- Department of Medicine, Division of Pulmonary, Allergy, Critical Care Medicine, Acute Lung Injury Center of Excellence, University of Pittsburgh, Pittsburgh, PA, USA
| | - Rama K Mallampalli
- Department of Internal Medicine, The Ohio State University, Columbus, OH, USA
| | - Sally E Wenzel
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Asthma Institute, University of Pittsburgh, PA, USA
| | - Hülya Bayir
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Department of Critical Care Medicine, Safar Center for Resuscitation Research, Children's Neuroscience Institute, Children's Hospital of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA.
| | - Valerian E Kagan
- Department of Environmental and Occupational Health and Center for Free Radical and Antioxidant Health, University of Pittsburgh, Pittsburgh, PA, USA; Institute for Regenerative Medicine, IM Sechenov Moscow State Medical University, Moscow, Russia; Departments of Pharmacology and Chemical Biology, Chemistry, Radiation Oncology, University of Pittsburgh, PA, USA.
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24
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Sahebnasagh A, Saghafi F, Negintaji S, Hu T, Shabani-Boroujeni M, Safdari M, Ghaleno HR, Miao L, Qi Y, Wang M, Liao P, Sureda A, Simal-Gándara J, Nabavi SM, Xiao J. Nitric Oxide and Immune Responses in Cancer: Searching for New Therapeutic Strategies. Curr Med Chem 2021; 29:1561-1595. [PMID: 34238142 DOI: 10.2174/0929867328666210707194543] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Revised: 05/05/2021] [Accepted: 05/15/2021] [Indexed: 02/08/2023]
Abstract
In recent years, there has been an increasing interest in understanding the mysterious functions of nitric oxide (NO) and how this pleiotropic signaling molecule contributes to tumorigenesis. This review attempts to expose and discuss the information available on the immunomodulatory role of NO in cancer and recent approaches to the role of NO donors in the area of immunotherapy. To address the goal, the following databases were searched to identify relevant literature concerning empirical evidence: The Cochrane Library, Pubmed, Medline, EMBASE from 1980 through March 2020. Valuable attempts have been made to develop distinctive NO-based cancer therapy. Although the data do not allow generalization, the evidence seems to indicate that low / moderate levels may favor tumorigenesis while higher levels would exert anti-tumor effects. In this sense, the use of NO donors could have an important therapeutic potential within immunotherapy, although there are still no clinical trials. The emerging understanding of NO-regulated immune responses in cancer may help unravel the recent features of this "double-edged sword" in cancer physiological and pathologic processes and its potential use as a therapeutic agent for cancer treatment. In short, in this review, we discuss the complex cellular mechanism in which NO, as a pleiotropic signaling molecule, participates in cancer pathophysiology. We also debate the dual role of NO in cancer and tumor progression, and clinical approaches for inducible nitric oxide synthase (iNOS) based therapy against cancer.
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Affiliation(s)
- Adeleh Sahebnasagh
- Clinical Research Center, Department of Internal Medicine, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Fatemeh Saghafi
- Department of Clinical Pharmacy, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Sina Negintaji
- Student Research Committee, School of Pharmacy, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
| | - Tingyan Hu
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Mojtaba Shabani-Boroujeni
- Department of Clinical Pharmacy, Faculty of Pharmacy, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammadreza Safdari
- Department of Orthopedic Surgery, Faculty of Medicine, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Hassan Rezai Ghaleno
- Department of Surgery, Faculty of Medicine, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Lingchao Miao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Macao, China
| | - Yaping Qi
- Purdue Quantum Science and Engineering Institute, Purdue University, West Lafayette, IN 47907, United States
| | - Mingfu Wang
- School of Biological Sciences, The University of Hong Kong, Pokfulam Road. Hong Kong, China
| | - Pan Liao
- Department of Biochemistry, Purdue University, West Lafayette, IN 47907, United States
| | - Antoni Sureda
- Research Group on Community Nutrition and Oxidative Stress, University of the Balearic Islands, Palma de Mallorca, Spain
| | - Jesus Simal-Gándara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain
| | - Seyed Mohammad Nabavi
- Applied Biotechnology Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Jianbo Xiao
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, E-32004 Ourense, Spain
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25
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Giordo R, Ahmed YMA, Allam H, Abusnana S, Pappalardo L, Nasrallah GK, Mangoni AA, Pintus G. EndMT Regulation by Small RNAs in Diabetes-Associated Fibrotic Conditions: Potential Link With Oxidative Stress. Front Cell Dev Biol 2021; 9:683594. [PMID: 34095153 PMCID: PMC8170089 DOI: 10.3389/fcell.2021.683594] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 04/26/2021] [Indexed: 12/20/2022] Open
Abstract
Diabetes-associated complications, such as retinopathy, nephropathy, cardiomyopathy, and atherosclerosis, the main consequences of long-term hyperglycemia, often lead to organ dysfunction, disability, and increased mortality. A common denominator of these complications is the myofibroblast-driven excessive deposition of extracellular matrix proteins. Although fibroblast appears to be the primary source of myofibroblasts, other cells, including endothelial cells, can generate myofibroblasts through a process known as endothelial to mesenchymal transition (EndMT). During EndMT, endothelial cells lose their typical phenotype to acquire mesenchymal features, characterized by the development of invasive and migratory abilities as well as the expression of typical mesenchymal products such as α-smooth muscle actin and type I collagen. EndMT is involved in many chronic and fibrotic diseases and appears to be regulated by complex molecular mechanisms and different signaling pathways. Recent evidence suggests that small RNAs, in particular microRNAs (miRNAs) and long non-coding RNAs (lncRNAs), are crucial mediators of EndMT. Furthermore, EndMT and miRNAs are both affected by oxidative stress, another key player in the pathophysiology of diabetic fibrotic complications. In this review, we provide an overview of the primary redox signals underpinning the diabetic-associated fibrotic process. Then, we discuss the current knowledge on the role of small RNAs in the regulation of EndMT in diabetic retinopathy, nephropathy, cardiomyopathy, and atherosclerosis and highlight potential links between oxidative stress and the dyad small RNAs-EndMT in driving these pathological states.
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Affiliation(s)
- Roberta Giordo
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Yusra M. A. Ahmed
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Hilda Allam
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Salah Abusnana
- Department of Diabetes and Endocrinology, University Hospital Sharjah, Sharjah, United Arab Emirates
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Lucia Pappalardo
- Department of Biology, Chemistry and Environmental Studies, American University of Sharjah, Sharjah, United Arab Emirates
| | - Gheyath K. Nasrallah
- Department of Biomedical Sciences, College of Health Sciences Member of QU Health, Qatar University, Doha, Qatar
- Biomedical Research Center, Qatar University, Doha, Qatar
| | - Arduino Aleksander Mangoni
- Discipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Adelaide, SA, Australia
- Flinders Medical Centre, Adelaide, SA, Australia
| | - Gianfranco Pintus
- Department of Medical Laboratory Sciences, College of Health Sciences and Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
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26
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Chang X, Kingsley KL, White JF. Chemical Interactions at the Interface of Plant Root Hair Cells and Intracellular Bacteria. Microorganisms 2021; 9:1041. [PMID: 34066008 PMCID: PMC8150332 DOI: 10.3390/microorganisms9051041] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 12/13/2022] Open
Abstract
In this research, we conducted histochemical, inhibitor and other experiments to evaluate the chemical interactions between intracellular bacteria and plant cells. As a result of these experiments, we hypothesize two chemical interactions between bacteria and plant cells. The first chemical interaction between endophyte and plant is initiated by microbe-produced ethylene that triggers plant cells to grow, release nutrients and produce superoxide. The superoxide combines with ethylene to form products hydrogen peroxide and carbon dioxide. In the second interaction between microbe and plant the microbe responds to plant-produced superoxide by secretion of nitric oxide to neutralize superoxide. Nitric oxide and superoxide combine to form peroxynitrite that is catalyzed by carbon dioxide to form nitrate. The two chemical interactions underlie hypothesized nutrient exchanges in which plant cells provide intracellular bacteria with fixed carbon, and bacteria provide plant cells with fixed nitrogen. As a consequence of these two interactions between endophytes and plants, plants grow and acquire nutrients from endophytes, and plants acquire enhanced oxidative stress tolerance, becoming more tolerant to abiotic and biotic stresses.
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Affiliation(s)
| | | | - James F. White
- Department of Plant Biology, School of Environmental and Biological Sciences, Rutgers University, New Brunswick, NJ 08901, USA; (X.C.); (K.L.K.)
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27
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Morales L, Vallcaneras S, Delsouc MB, Filippa V, Aguilera-Merlo C, Fernández M, Casais M. Neuromodulatory effect of GnRH from coeliac ganglion on luteal regression in the late pregnant rat. Cell Tissue Res 2021; 384:487-498. [PMID: 33779845 DOI: 10.1007/s00441-021-03436-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Accepted: 02/18/2021] [Indexed: 12/29/2022]
Abstract
The GnRH/GnRH receptor system has been found in several extrapituitary tissues, although its physiological significance has not yet been well established. Taking into account that the peripheral neural system can act as a modulator of pregnancy corpus luteum, the objective was to physiologically investigate the presence of the GnRH system in coeliac ganglion (CG) and to analyse its possible involvement in luteal regression through the superior ovarian nerve (SON) at the end of pregnancy in the rat. The integrated ex vivo CG-SON-Ovary system of rats on day 21 of pregnancy was used. Cetrorelix (CTX), a GnRH receptor antagonist, was added into the ganglionic compartment while the control systems were untreated. Ganglionic GnRH release was detected under basal conditions. Then, the CTX addition in CG increased it, which would indicate the blockade of the receptor. In turn, CTX in CG caused an increase in ovarian progesterone release. Furthermore, the luteal cells showed an increase in the expression of Hsd3b1 and a decrease in the expression of Akr1c3 (progesterone synthesis and degradation enzymes, respectively), reduced TUNEL staining according to an increase in the antioxidant defence system activity and low lipid peroxide levels. The ovarian and ganglionic nitric oxide (NO) release increased, while the luteal nitrotyrosine content, measured as nitrosative stress marker, decreased. CTX in CG decreased the ovarian noradrenaline release. The present study provides evidence that GnRH from CG may trigger neuronal signals that promote the luteal regression in late pregnancy by affecting the release of NO and noradrenaline in the ovary.
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Affiliation(s)
- Laura Morales
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Av. Ejército de los Andes 950, D5700HHW, San Luis, Argentina
| | - Sandra Vallcaneras
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Av. Ejército de los Andes 950, D5700HHW, San Luis, Argentina
| | - María Belén Delsouc
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Av. Ejército de los Andes 950, D5700HHW, San Luis, Argentina
| | - Verónica Filippa
- Histología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Av. Ejército de los Andes 950, Bloque I, Piso No. 1, 5700, San Luis, Argentina
- Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), 5700, San Luis, Argentina
| | - Claudia Aguilera-Merlo
- Histología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Av. Ejército de los Andes 950, Bloque I, Piso No. 1, 5700, San Luis, Argentina
| | - Marina Fernández
- Instituto de Biología y Medicina Experimental (IBYME-CONICET), V. de Obligado 2490, C1428ADN, Buenos Aires, Argentina
| | - Marilina Casais
- Laboratorio de Biología de la Reproducción (LABIR), Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Instituto Multidisciplinario de Investigaciones Biológicas de San Luis (IMIBIO-SL-CONICET), Av. Ejército de los Andes 950, D5700HHW, San Luis, Argentina.
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28
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Ismail H, Shakkour Z, Tabet M, Abdelhady S, Kobaisi A, Abedi R, Nasrallah L, Pintus G, Al-Dhaheri Y, Mondello S, El-Khoury R, Eid AH, Kobeissy F, Salameh J. Traumatic Brain Injury: Oxidative Stress and Novel Anti-Oxidants Such as Mitoquinone and Edaravone. Antioxidants (Basel) 2020; 9:antiox9100943. [PMID: 33019512 PMCID: PMC7601591 DOI: 10.3390/antiox9100943] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 09/04/2020] [Accepted: 09/22/2020] [Indexed: 12/20/2022] Open
Abstract
Traumatic brain injury (TBI) is a major health concern worldwide and is classified based on severity into mild, moderate, and severe. The mechanical injury in TBI leads to a metabolic and ionic imbalance, which eventually leads to excessive production of reactive oxygen species (ROS) and a state of oxidative stress. To date, no drug has been approved by the food and drug administration (FDA) for the treatment of TBI. Nevertheless, it is thought that targeting the pathology mechanisms would alleviate the consequences of TBI. For that purpose, antioxidants have been considered as treatment options in TBI and were shown to have a neuroprotective effect. In this review, we will discuss oxidative stress in TBI, the history of antioxidant utilization in the treatment of TBI, and we will focus on two novel antioxidants, mitoquinone (MitoQ) and edaravone. MitoQ can cross the blood brain barrier and cellular membranes to accumulate in the mitochondria and is thought to activate the Nrf2/ARE pathway leading to an increase in the expression of antioxidant enzymes. Edaravone is a free radical scavenger that leads to the mitigation of damage resulting from oxidative stress with a possible association to the activation of the Nrf2/ARE pathway as well.
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Affiliation(s)
- Helene Ismail
- Department of Neurology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
| | - Zaynab Shakkour
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Maha Tabet
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Samar Abdelhady
- Faculty of Medicine, Alexandria University, Alexandria 21544, Egypt;
| | - Abir Kobaisi
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Reem Abedi
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Leila Nasrallah
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
| | - Gianfranco Pintus
- Department of Medical Laboratory Sciences, University of Sharjah, Sharjah 27272, UAE;
- Department of Biomedical Sciences, University of Sassari, 07100 Sassari, Italy
| | - Yusra Al-Dhaheri
- Department of Biology, College of Science, United Arab Emirates University, Al-Ain 15551, UAE;
| | - Stefania Mondello
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98165 Messina, Italy;
| | - Riyad El-Khoury
- Department of Pathology and Laboratory Medicine, Neuromuscular Diagnostic Laboratory, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
| | - Ali H. Eid
- Department of Pharmacology and Toxicology, American University of Beirut, Beirut 1107 2020, Lebanon
- Department of Biomedical Sciences, Qatar University, Doha 2713, Qatar
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
| | - Firas Kobeissy
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut 1107 2020, Lebanon; (Z.S.); (M.T.); (A.K.); (R.A.); (L.N.)
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
| | - Johnny Salameh
- Department of Neurology, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
- Correspondence: (A.H.E.); (F.K.); (J.S.); Tel.: +961-1-350000 (ext. 4891) (A.H.E.); +961-1-350000 (ext. 4805) (F.K.); +961-1-350000 (ext. 7359) (J.S.)
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Maheshwaran D, Nagendraraj T, Sekar Balaji T, Kumaresan G, Senthil Kumaran S, Mayilmurugan R. Smart dual T1 MRI-optical imaging agent based on a rhodamine appended Fe(iii)-catecholate complex. Dalton Trans 2020; 49:14680-14689. [DOI: 10.1039/d0dt02364g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The high spin Fe(iii) complex Fe(RhoCat)3 is reported as a smart dual-modal T1 MRI-optical imaging probe to visualize the NO molecule and an acidic pH environment.
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Affiliation(s)
- Duraiyarasu Maheshwaran
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Thavasilingam Nagendraraj
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - T. Sekar Balaji
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - Ganesan Kumaresan
- School of Biological Sciences
- Madurai Kamaraj University
- Madurai 625 021
- India
| | - S. Senthil Kumaran
- Department of NMR
- All India Institute of Medical Sciences
- New Delhi 110 029
- India
| | - Ramasamy Mayilmurugan
- Bioinorganic Chemistry Laboratory/Physical Chemistry
- School of Chemistry
- Madurai Kamaraj University
- Madurai 625 021
- India
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30
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Shumaev KB, Gorudko IV, Kosmachevskaya OV, Grigorieva DV, Panasenko ОM, Vanin AF, Topunov AF, Terekhova MS, Sokolov AV, Cherenkevich SN, Ruuge EK. Protective Effect of Dinitrosyl Iron Complexes with Glutathione in Red Blood Cell Lysis Induced by Hypochlorous Acid. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:2798154. [PMID: 31089406 PMCID: PMC6476047 DOI: 10.1155/2019/2798154] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2018] [Revised: 11/15/2018] [Accepted: 01/27/2019] [Indexed: 01/05/2023]
Abstract
Hypochlorous acid (HOCl), one of the major precursors of free radicals in body cells and tissues, is endowed with strong prooxidant activity. In living systems, dinitrosyl iron complexes (DNIC) with glutathione ligands play the role of nitric oxide donors and possess a broad range of biological activities. At micromolar concentrations, DNIC effectively inhibit HOCl-induced lysis of red blood cells (RBCs) and manifest an ability to scavenge alkoxyl and alkylperoxyl radicals generated in the reaction of HOCl with tert-butyl hydroperoxide. DNIC proved to be more effective cytoprotective agents and organic free radical scavengers in comparison with reduced glutathione (GSH). At the same time, the kinetics of HOCl-induced oxidation of glutathione ligands in DNIC is slower than in the case of GSH. HOCl-induced oxidative conversions of thiolate ligands cause modification of DNIC, which manifests itself in inclusion of other ligands. It is suggested that the strong inhibiting effect of DNIC with glutathione on HOCl-induced lysis of RBCs is determined by their antioxidant and regulatory properties.
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Affiliation(s)
- Konstantin B. Shumaev
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
| | | | - Olga V. Kosmachevskaya
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Оleg M. Panasenko
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Pirogov Russian National Research Medical University, Moscow 117997, Russia
| | - Anatoly F. Vanin
- Russian Academy of Sciences, Semenov Institute of Chemical Physics, Moscow 119991, Russia
| | - Alexey F. Topunov
- Research Center of Biotechnology of the Russian Academy of Sciences, Bach Institute of Biochemistry, Moscow 119071, Russia
| | | | - Alexey V. Sokolov
- Federal Research and Clinical Center of Physical-Chemical Medicine of Federal Medical Biological Agency, Moscow 119435, Russia
- Institute of Experimental Medicine, Saint Petersburg 197376, Russia
| | | | - Enno K. Ruuge
- National Medical Research Centre for Cardiology, Moscow 121552, Russia
- Lomonosov Moscow State University, Faculty of Physics, Moscow 119234, Russia
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31
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Gogna M, Bhatla SC. Biochemical mechanisms regulating salt tolerance in sunflower. PLANT SIGNALING & BEHAVIOR 2019; 14:1670597. [PMID: 31566062 PMCID: PMC6866699 DOI: 10.1080/15592324.2019.1670597] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Sunflower plants are semi-tolerant to salt stress. Calcium modulates the expression of oubain-sensitive ATPases, responsible for sodium fluxes in cells. Salt stress delays degradation of oil body (OB) membrane proteins. Serotonin and melatonin contents are elevated in response to salt stress. Melatonin can detoxify the seedlings of elevated reactive oxygen species (ROS) levels. Enhanced nitric oxide (NO) expression correlates with NaCl-induced modulation of seedling growth. Salt stress enhances S-nitrosylation of cytosolic proteins in seedling cotyledons, while in roots, denitrosylation of proteins is observed. Lipid peroxide content and glutathione peroxidase (GPX4) activity are enhanced in response to salt stress. Salt stress downregulates the activity of superoxide dismutase (SOD) and upregulates the activity of GPX4 and glutathione reductase (GR). Heme oxygenase-1 (HO-1) abundance in cells surrounding the secretory canal in seedling cotyledons is enhanced in response to salt stress. NO negatively regulates the total glutathione homeostasis and regulates polyamine and glycine betaine homeostasis in response to salt stress. An intricate biochemical crosstalk is thus observed to control salt tolerance mechanisms in sunflower.
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Affiliation(s)
- Mansi Gogna
- Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi, India
| | - Satish C. Bhatla
- Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi, India
- CONTACT Satish C. Bhatla Laboratory of Plant Physiology, Department of Botany, University of Delhi, Delhi 110007, India
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Cao GJ, Fisher CM, Jiang X, Chong Y, Zhang H, Guo H, Zhang Q, Zheng J, Knolhoff AM, Croley TR, Yin JJ. Platinum nanoparticles: an avenue for enhancing the release of nitric oxide from S-nitroso-N-acetylpenicillamine and S-nitrosoglutathione. NANOSCALE 2018; 10:11176-11185. [PMID: 29873378 DOI: 10.1039/c8nr03874k] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Nitric oxide (NO) is an endogenous bioregulator with established roles in diverse fields. The difficulty in the modulation of NO release is still a significant obstacle to achieving successful clinical applications. We report herein our initial work using electron spin resonance (ESR) spectroscopy to detect NO generated from S-nitroso-N-acetylpenicillamine (SNAP) and S-nitrosoglutathione (GSNO) donors catalyzed by platinum nanoparticles (Pt NPs, 3 nm) under physiological conditions. With ESR spectroscopy coupled with spin trapping and spin labeling techniques, we identified that Pt NPs can significantly promote the generation of NO from SNAP and GSNO under physiological conditions. A classic NO colorimetric detection kit was also employed to verify that Pt NPs truly triggered the release of NO from its donors. Pt NPs can act as promising delivery vehicles for on-demand NO delivery based on time and dosage. These results, along with the detection of the resulting disulfide product, were confirmed with mass spectrometry. In addition, cellular experiments provided a convincing demonstration that the triggered release of NO from its donors by Pt NPs is efficient in killing human cancer cells in vitro. The catalytic mechanism was elucidated by X-ray photo-electron spectroscopy (XPS) and ultra-high performance liquid chromatography/high-resolution mass spectrometry (UHPLC-HRMS), which suggested that Pt-S bond formation occurs in the solution of Pt NPs and NO donors. Identification of Pt NPs capable of generating NO from S-nitrosothiols (RSNOs) is an important step in harnessing NO for investigations into its clinical applications and therapies.
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Affiliation(s)
- Gao-Juan Cao
- Department of Applied Chemistry, College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, China
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In Vivo Protective Effects of Nootkatone against Particles-Induced Lung Injury Caused by Diesel Exhaust Is Mediated via the NF-κB Pathway. Nutrients 2018; 10:nu10030263. [PMID: 29495362 PMCID: PMC5872681 DOI: 10.3390/nu10030263] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 01/18/2018] [Accepted: 01/23/2018] [Indexed: 12/21/2022] Open
Abstract
Numerous studies have shown that acute particulate air pollution exposure is linked with pulmonary adverse effects, including alterations of pulmonary function, inflammation, and oxidative stress. Nootkatone, a constituent of grapefruit, has antioxidant and anti-inflammatory effects. However, the effect of nootkatone on lung toxicity has not been reported so far. In this study we evaluated the possible protective effects of nootkatone on diesel exhaust particles (DEP)-induced lung toxicity, and the possible mechanisms underlying these effects. Mice were intratracheally (i.t.) instilled with either DEP (30 µg/mouse) or saline (control). Nootkatone was given to mice by gavage, 1 h before i.t. instillation, with either DEP or saline. Twenty-four hours following DEP exposure, several physiological and biochemical endpoints were assessed. Nootkatone pretreatment significantly prevented the DEP-induced increase in airway resistance in vivo, decreased neutrophil infiltration in bronchoalveolar lavage fluid, and abated macrophage and neutrophil infiltration in the lung interstitium, assessed by histolopathology. Moreover, DEP caused a significant increase in lung concentrations of 8-isoprostane and tumor necrosis factor α, and decreased the reduced glutathione concentration and total nitric oxide activity. These actions were all significantly alleviated by nootkatone pretreatment. Similarly, nootkatone prevented DEP-induced DNA damage and prevented the proteolytic cleavage of caspase-3. Moreover, nootkatone inhibited nuclear factor-kappaB (NF-κB) induced by DEP. We conclude that nootkatone prevented the DEP-induced increase in airway resistance, lung inflammation, oxidative stress, and the subsequent DNA damage and apoptosis through a mechanism involving inhibition of NF-κB activation. Nootkatone could possibly be considered a beneficial protective agent against air pollution-induced respiratory adverse effects.
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Alam R, Islam ASM, Sasmal M, Katarkar A, Ali M. A rhodamine-based turn-on nitric oxide sensor in aqueous medium with endogenous cell imaging: an unusual formation of nitrosohydroxylamine. Org Biomol Chem 2018; 16:3910-3920. [DOI: 10.1039/c8ob00822a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The sensor L3 selectively recognizes NO in purely aqueous medium with an unusual formation of nitrosohydroxylamine with a turn-on fluorescence response which might be suitable for in vivo application.
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Affiliation(s)
- Rabiul Alam
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | | | - Mihir Sasmal
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
| | - Atul Katarkar
- Department of Molecular & Human Genetics Division
- CSIR-Indian Institute of Chemical Biology
- Kolkata-700032
- India
| | - Mahammad Ali
- Department of Chemistry
- Jadavpur University
- Kolkata 700 032
- India
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Abdullah MZ, Mohd Ali J, Abolmaesoomi M, Abdul-Rahman PS, Hashim OH. Anti-proliferative, in vitro antioxidant, and cellular antioxidant activities of the leaf extracts from Polygonum minus Huds: Effects of solvent polarity. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2017. [DOI: 10.1080/10942912.2017.1315591] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | - Johari Mohd Ali
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Mitra Abolmaesoomi
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | - Onn Haji Hashim
- Department of Molecular Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
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Harsha C, Banik K, Bordoloi D, Kunnumakkara AB. Antiulcer properties of fruits and vegetables: A mechanism based perspective. Food Chem Toxicol 2017; 108:104-119. [PMID: 28711545 DOI: 10.1016/j.fct.2017.07.023] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 05/19/2017] [Accepted: 07/10/2017] [Indexed: 12/17/2022]
Abstract
Gastric ulcer is the damage caused to mucosal layer of the stomach under the action of various factors like high levels of acid and pepsin, invasion by Helicobacter pylori, etc. Although most cases have been controlled and the rate of ulcer occurrence has reduced over the last few decades, gastric ulcer still holds a prime concern today. A range of palliative medicines comprising proton pump inhibitors, H2 receptor antagonists, COX-2 inhibitors (coxibs) is widely in use and patients have also been administered with acid suppression therapies. But these remedies aggravate the condition of patients causing severe side effects, or rather impart temporary relief. Therefore, it is highly imperative to develop safe and effective therapies for the treatment of gastric ulcer. Nature provides us various fruits and vegetables that can combat gastric ulcer through multiple mechanisms; predominantly via antioxidant, anti-inflammatory, antisecretory, antimicrobial, anticholinergic and cytoprotective activity, inhibition of small intestinal propulsion etc. Various phytochemicals from fruits and vegetables such as phenolics, flavonoids, tannins and saponins play a vital role in the prevention and cure of gastric ulcer. This review is a compendium of all fruits and vegetables known for their profound antiulcer effect and their underlying mechanisms of action.
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Affiliation(s)
- Choudhary Harsha
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Kishore Banik
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Devivasha Bordoloi
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory, Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Assam, 781039, India.
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Mahmoudi L, Kissner R, Koppenol WH. Low-Temperature Trapping of Intermediates in the Reaction of NO • with O 2. Inorg Chem 2017; 56:4846-4851. [PMID: 28414428 DOI: 10.1021/acs.inorgchem.6b02947] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The autoxidation of NO• was studied in glass-like matrices of 2-methylbutane at 110 K and in a 8:3 v/v mixture of 2,2-dimethylbutane and n-pentane (rigisolve) at 80-90 K, by letting gaseous NO• diffuse into these solvents that were saturated with O2. In 2-methyllbutane, we observed a red compound. However, in rigisolve at 85-90 K, a bright yellow color appears that turns red when the sample is warmed by 10-20 K. The new yellow compound is a precursor of the red one and also diamagnetic. The UV-vis spectrum of the yellow compound contains a band which resembles that present in ONOO-. Because the red and yellow intermediates are not paramagnetic, we postulate that O═N-O-O• is in close contact with NO•, or with another O═N-O-O•. Diffusion of gaseous O2 into rigisolve saturated with NO• does not produce a color; however, a weak EPR signal (g = 2.010) is observed. This signal most likely indicates the presence of ONOO•. These findings complement our earlier observation of a red color at low temperatures and the presence of ONOO• in the gas phase (Galliker, B.; Kissner, R.; Nauser, T.; Koppenol, W. H. Chem. Eur. J. 2009, 15, 6161-6168), and they indicate that the termolecular autoxidation of nitrogen monoxide proceeds via the intermediate ONOO• and not via N2O2.
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Affiliation(s)
- Leila Mahmoudi
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology , CH-8093 Zurich, Switzerland
| | - Reinhard Kissner
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology , CH-8093 Zurich, Switzerland
| | - Willem H Koppenol
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology , CH-8093 Zurich, Switzerland
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39
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Salmina AB, Komleva YK, Szijártó IA, Gorina YV, Lopatina OL, Gertsog GE, Filipovic MR, Gollasch M. H2S- and NO-Signaling Pathways in Alzheimer's Amyloid Vasculopathy: Synergism or Antagonism? Front Physiol 2015; 6:361. [PMID: 26696896 PMCID: PMC4675996 DOI: 10.3389/fphys.2015.00361] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Accepted: 11/16/2015] [Indexed: 12/02/2022] Open
Abstract
Alzheimer's type of neurodegeneration dramatically affects H2S and NO synthesis and interactions in the brain, which results in dysregulated vasomotor function, brain tissue hypoperfusion and hypoxia, development of perivascular inflammation, promotion of Aβ deposition, and impairment of neurogenesis/angiogenesis. H2S- and NO-signaling pathways have been described to offer protection against Alzheimer's amyloid vasculopathy and neurodegeneration. This review describes recent developments of the increasing relevance of H2S and NO in Alzheimer's disease (AD). More studies are however needed to fully determine their potential use as therapeutic targets in Alzheimer's and other forms of vascular dementia.
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Affiliation(s)
- Alla B. Salmina
- Department of Biochemistry, Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-YasenetskyKrasnoyarsk, Russia
| | - Yulia K. Komleva
- Department of Biochemistry, Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-YasenetskyKrasnoyarsk, Russia
| | - István A. Szijártó
- Experimental and Clinical Research Center, Charité - University Medicine Berlin and the Max Delbrück Center for Molecular MedicineBerlin, Germany
| | - Yana V. Gorina
- Department of Biochemistry, Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-YasenetskyKrasnoyarsk, Russia
| | - Olga L. Lopatina
- Department of Biochemistry, Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-YasenetskyKrasnoyarsk, Russia
| | - Galina E. Gertsog
- Department of Biochemistry, Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University named after Prof. V.F. Voino-YasenetskyKrasnoyarsk, Russia
| | - Milos R. Filipovic
- Department of Chemistry and Pharmacy, Friedrich-Alexander-University of Erlangen-NürnbergErlangen, Germany
| | - Maik Gollasch
- Experimental and Clinical Research Center, Charité - University Medicine Berlin and the Max Delbrück Center for Molecular MedicineBerlin, Germany
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Berberine Reduces Neurotoxicity Related to Nonalcoholic Steatohepatitis in Rats. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2015; 2015:361847. [PMID: 26576191 PMCID: PMC4630388 DOI: 10.1155/2015/361847] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2015] [Accepted: 09/28/2015] [Indexed: 02/07/2023]
Abstract
Berberine is a plant alkaloid that has several pharmacological effects such as antioxidant, antilipidemic, and anti-inflammatory effects. Nonalcoholic steatohepatitis (NASH) triggers different aspects of disorders such as impaired endogenous lipid metabolism, hypercholesterolemia, oxidative stress, and neurotoxicity. In this study, we examined the mechanism by which NASH induces neurotoxicity and the protective effect of berberine against both NASH and its associated neurotoxicity. NASH induced rats showed significant impairments in lipid metabolism with increased serum triglycerides, cholesterol, and low-density lipoprotein (LDL). The NASH induced group also demonstrated a significant oxidative stress which is characterized by increased TBARs level and decreased antioxidant capacity such as GSH and SOD levels. Moreover, the NASH induction was associated with inflammation which was demonstrated by increased TNFα and nitric oxide levels. Hyperglycemia and hyperinsulinemia were observed in the NASH induced group. Also, our results showed a significant increase in the expression of the acetylcholine esterase (AChE) and amyloid beta precursor protein (AβPP). These changes were significantly correlated with decreased insulin degrading enzyme (IDE) and beta-amyloid40 (Aβ 40) and increased beta-amyloid42 (Aβ 42) in the hippocampal region. Daily administration of berberine (50 mg/kg) for three weeks ameliorated oxidative stress, inflammation, hyperlipidemia, hyperglycemia, hyperinsulinemia, and the observed neurotoxicity.
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41
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Recent advances in stress research: Focus on nitric oxide. Eur J Pharmacol 2015; 765:406-14. [DOI: 10.1016/j.ejphar.2015.08.055] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2015] [Revised: 08/27/2015] [Accepted: 08/28/2015] [Indexed: 12/29/2022]
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Lewis P, McMorrow C, Bradford A, O'Halloran KD. Improved tolerance of acute severe hypoxic stress in chronic hypoxic diaphragm is nitric oxide-dependent. J Physiol Sci 2015; 65:427-33. [PMID: 26001629 PMCID: PMC10717054 DOI: 10.1007/s12576-015-0381-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2015] [Accepted: 05/02/2015] [Indexed: 10/23/2022]
Abstract
The effects of chronic hypoxia (CH) on respiratory muscle performance have hardly been investigated, despite clinical relevance. Results from recent studies are indicative of unique adaptive strategies in hypoxic diaphragm. Respiratory muscle tolerance of acute severe hypoxic stress was examined in normoxic and CH diaphragm in the presence and absence of a nitric oxide (NO) synthase inhibitor. We tested the hypothesis that improved tolerance of severe hypoxic stress in CH diaphragm is NO-dependent. Wistar rats were exposed to normoxia (sea-level, n = 6) or CH (ambient pressure = 380 mmHg, n = 6) for 6 weeks. Diaphragm muscle functional properties were determined ex vivo under severe hypoxic conditions (gassed with 95%N2/5% CO2) with and without 1 mM L-N(G)-nitroarginine (L-NNA, nNOS inhibitor). Fatigue tolerance, but not force, was significantly improved in CH diaphragm (p = 0.008). CH exposure did not affect diaphragm muscle fibre oxidative capacity determined from cluster analysis of area-density plots of muscle fibre succinate dehydrogenase activity. Acute NOS inhibition reduced diaphragm peak tetanic force (p = 0.018), irrespective of gas treatment, and completely reversed improved fatigue tolerance of the CH diaphragm. We conclude that CH exposure improves fatigue tolerance during acute severe hypoxic stress in an NO-dependent manner, independent of muscle fibre oxidative capacity.
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Affiliation(s)
- Philip Lewis
- Department of Physiology, School of Medicine, Western Gateway Building, University College Cork, Western Road, Cork, Ireland,
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Circulating biomarkers in pulmonary arterial hypertension: Update and future direction. J Heart Lung Transplant 2015; 34:282-305. [DOI: 10.1016/j.healun.2014.12.005] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2014] [Revised: 12/16/2014] [Accepted: 12/17/2014] [Indexed: 12/29/2022] Open
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Arora D, Bhatla SC. Nitric oxide triggers a concentration-dependent differential modulation of superoxide dismutase (FeSOD and Cu/ZnSOD) activity in sunflower seedling roots and cotyledons as an early and long distance signaling response to NaCl stress. PLANT SIGNALING & BEHAVIOR 2015; 10:e1071753. [PMID: 26339977 PMCID: PMC4883867 DOI: 10.1080/15592324.2015.1071753] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2015] [Accepted: 07/07/2015] [Indexed: 05/08/2023]
Abstract
Dark-grown sunflower (Helianthus annuus L.) seedlings exhibit modulation of total superoxide dismutase (SOD;EC 1.15.1.1) activity in roots and cotyledons (10,000g supernatant) in response to salt stress (NaCl; 120 mM) through a differential, zymographically detectable, whole tissue activity of FeSOD and Cu/ZnSOD. Confocal laser scanning microscopic imaging (CLSM) has further shown that NaCl stress significantly influences differential spatial distribution of Cu/ZnSOD and MnSOD isoforms in an inverse manner. Dual action of nitric oxide (NO) is evident in its crosstalk with FeSOD and Cu/ZnSOD in seedling roots and cotyledons in control and NaCl(-) stress conditions. Cu/ZnSOD activity in the roots of 2 d old NaCl(-) stressed seedlings is enhanced in the presence of 125-1000 µM of NO donor (sodium nitroprusside; SNP) indicating salt sensitivity of the enzyme activity. Quenching of endogenous NO by cPTIO treatment (500, 1000 µM) lowers FeSOD activity in roots (-NaCl). Cotyledons from control seedlings show an upregulation of FeSOD activity with increasing availability of SNP (125-1000 µM) in the Hoagland irrigation medium. Quenching of NO by cPTIO provides evidence for an inverse correlation between NO availability and FeSOD activity in seedling cotyledons irrespective of NaCl stress. Variable response due to NO on SOD isoforms in sunflower seedlings reflects its concentration-dependent biphasic (pro- and antioxidant) nature of action. Differential induction of SOD isoforms by NO indicates separate intracellular signaling pathways (associated with their respective functional separation) operative in seedling roots as an early salt stress mechanism and in cotyledons as an early long-distance NaCl stress sensing mechanism.
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Affiliation(s)
- Dhara Arora
- Laboratory of Plant Physiology and Biochemistry; Department of Botany; University of Delhi; Delhi, India
| | - Satish C Bhatla
- Laboratory of Plant Physiology and Biochemistry; Department of Botany; University of Delhi; Delhi, India
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Staurengo-Ferrari L, Mizokami SS, Fattori V, Silva JJ, Zanichelli PG, Georgetti SR, Baracat MM, da França LG, Pavanelli WR, Casagrande R, Verri WA. The ruthenium nitric oxide donor, [Ru(HEDTA)NO], inhibits acute nociception in mice by modulating oxidative stress, cytokine production and activating the cGMP/PKG/ATP-sensitive potassium channel signaling pathway. Naunyn Schmiedebergs Arch Pharmacol 2014; 387:1053-68. [PMID: 25116441 DOI: 10.1007/s00210-014-1030-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2014] [Accepted: 07/28/2014] [Indexed: 01/22/2023]
Abstract
Nitric oxide plays an important role in various biological processes including antinociception. The control of its local concentration is crucial for obtaining the desired effect and can be achieved with exogenous nitric oxide-carriers such as ruthenium complexes. Therefore, we evaluated the analgesic effect and mechanism of action of the ruthenium nitric oxide donor [Ru(HEDTA)NO] focusing on the role of cytokines, oxidative stress and activation of the cyclic guanosine monophosphate/protein kinase G/ATP-sensitive potassium channel signaling pathway. It was observed that [Ru(HEDTA)NO] inhibited in a dose-dependent (1-10 mg/kg) manner the acetic acid-induced writhing response. At the dose of 1 mg/kg, [Ru(HEDTA)NO] inhibited the phenyl-p-benzoquinone-induced writhing response, and formalin- and complete Freund's adjuvant-induced licking and flinching responses. Systemic and local treatments with [Ru(HEDTA)NO] also inhibited the carrageenin-induced mechanical hyperalgesia and increase of myeloperoxidase activity in paw skin samples. Mechanistically, [Ru(HEDTA)NO] inhibited carrageenin-induced production of the hyperalgesic cytokines tumor necrosis factor-α and interleukin-1β, and decrease of reduced glutathione levels. Furthermore, the inhibitory effect of [Ru(HEDTA)NO] in the carrageenin-induced hyperalgesia and myeloperoxidase activity was prevented by the treatment with ODQ (soluble guanylyl cyclase inhibitor), KT5823 (protein kinase G inhibitor) and glybenclamide (ATP-sensitive potassium channel inhibitor), indicating that [Ru(HEDTA)NO] inhibits inflammatory hyperalgesia by activating the cyclic guanosine monophosphate/protein kinase G/ATP-sensitive potassium channel signaling pathway, respectively. These results demonstrate that [Ru(HEDTA)NO] exerts its analgesic effect in inflammation by inhibiting pro-nociceptive cytokine production, oxidative imbalance and activation of the nitric oxide/cyclic guanosine monophosphate/protein kinase G/ATP-sensitive potassium channel signaling pathway in mice.
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Affiliation(s)
- Larissa Staurengo-Ferrari
- Departamento de Ciências Patológicas, Centro de Ciências Biológicas, Universidade Estadual de Londrina, Rod. Celso Garcia Cid KM480 PR445, CEP 86057-970, Cx Postal 10.011, Londrina, Paraná, Brazil
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Kumari S, Sammut IA, Giles GI. The design of nitric oxide donor drugs: s-nitrosothiol tDodSNO is a superior photoactivated donor in comparison to GSNO and SNAP. Eur J Pharmacol 2014; 737:168-76. [DOI: 10.1016/j.ejphar.2014.05.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Revised: 05/13/2014] [Accepted: 05/14/2014] [Indexed: 12/19/2022]
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Zuo L, He F, Sergakis GG, Koozehchian MS, Stimpfl JN, Rong Y, Diaz PT, Best TM. Interrelated role of cigarette smoking, oxidative stress, and immune response in COPD and corresponding treatments. Am J Physiol Lung Cell Mol Physiol 2014; 307:L205-18. [DOI: 10.1152/ajplung.00330.2013] [Citation(s) in RCA: 163] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Cigarette smoking (CS) can impact the immune system and induce pulmonary disorders such as chronic obstructive pulmonary disease (COPD), which is currently the fourth leading cause of chronic morbidity and mortality worldwide. Accordingly, the most significant risk factor associated with COPD is exposure to cigarette smoke. The purpose of the present study is to provide an updated overview of the literature regarding the effect of CS on the immune system and lungs, the mechanism of CS-induced COPD and oxidative stress, as well as the available and potential treatment options for CS-induced COPD. An extensive literature search was conducted on the PubMed/Medline databases to review current COPD treatment research, available in the English language, dating from 1976 to 2014. Studies have investigated the mechanism by which CS elicits detrimental effects on the immune system and pulmonary function through the use of human and animal subjects. A strong relationship among continued tobacco use, oxidative stress, and exacerbation of COPD symptoms is frequently observed in COPD subjects. In addition, therapeutic approaches emphasizing smoking cessation have been developed, incorporating counseling and nicotine replacement therapy. However, the inability to reverse COPD progression establishes the need for improved preventative and therapeutic strategies, such as a combination of intensive smoking cessation treatment and pharmaceutical therapy, focusing on immune homeostasis and redox balance. CS initiates a complex interplay between oxidative stress and the immune response in COPD. Therefore, multiple approaches such as smoking cessation, counseling, and pharmaceutical therapies targeting inflammation and oxidative stress are recommended for COPD treatment.
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Affiliation(s)
- Li Zuo
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Feng He
- Department of Health and Kinesiology, Purdue University, Lafayette, Indiana
| | - Georgianna G. Sergakis
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Majid S. Koozehchian
- Exercise and Sport Nutrition Laboratory, Department of Health & Kinesiology, Texas A&M University, College Station, Texas
| | - Julia N. Stimpfl
- Respiratory Therapy Division, School of Health and Rehabilitation Sciences, The Ohio State University College of Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Yi Rong
- Department of Radiation Oncology, James Cancer Hospital, The Ohio State University Wexner Medical Center, Columbus, Ohio; and
| | - Philip T. Diaz
- Division of Pulmonary, Allergy, Critical Care & Sleep Medicine, The Ohio State University Wexner Medical Center, Columbus, Ohio
| | - Thomas M. Best
- Division of Sports Medicine, Department of Family Medicine, Sports Health & Performance Institute, The Ohio State University Wexner Medical Center, Columbus, Ohio
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Harisa GI. Mitigation of lead-induced neurotoxicity by the naringin: erythrocytes as neurons substitute markers. Biol Trace Elem Res 2014; 159:99-106. [PMID: 24828744 DOI: 10.1007/s12011-014-9996-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Accepted: 04/24/2014] [Indexed: 12/31/2022]
Abstract
This study aimed to investigate the effect of lead (Pb) on neuronal nitric oxide synthase (nNOS) activity using erythrocytes as neurons surrogate markers. Moreover, the protective effect of naringin (NAR) against lead acetate (PbAc)-induced neurotoxicity was investigated. Human erythrocytes were incubated with L-arginine (L-Arg), Nω-nitro-L-Arginine methyl ester ( L-NAME), NAR, PbAc, PbAc+L-Arg, PbAc+NAR, or PbAc+L-Arg+NAR. The present results revealed that incubation of erythrocytes with PbAc inhibited NOS activity and decreased nitrite levels as an index for nitric oxide (NO) production to values similar that of L-NAME as known NOS inhibitor. Likewise, PbAc induced a significant decrease in activities of ATPases and acetylcholinesterase compared to control cells. Furthermore, PbAc exposure significantly increased protein carbonyl content (PCC) and malondialdehyde (MDA) levels while significantly decrease the levels of reduced glutathione (GSH). On the contrary, incubation of erythrocytes with PbAc in the presence of L-Arg+NAR synergistically ameliorated the investigated parameters compared to erythrocytes incubated with PbAc alone. These data suggest that NAR can restore NO bioavailability in a situation of Pb-induced cellular damage. This attributed to antioxidant activity and restoration NOS activity.
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Affiliation(s)
- Gamaleldin I Harisa
- Department of Pharmaceutics, Kayyali Chair for Pharmaceutical Industry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh, 11451, Saudi Arabia,
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Dharmaraja AT, Ravikumar G, Chakrapani H. Arylboronate Ester Based Diazeniumdiolates (BORO/NO), a Class of Hydrogen Peroxide Inducible Nitric Oxide (NO) Donors. Org Lett 2014; 16:2610-3. [DOI: 10.1021/ol5010643] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Allimuthu T. Dharmaraja
- Indian Institute of Science
Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, Maharashtra, India
| | - Govindan Ravikumar
- Indian Institute of Science
Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, Maharashtra, India
| | - Harinath Chakrapani
- Indian Institute of Science
Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, Maharashtra, India
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Sudhesh P, Tamilarasan K, Arumugam P, Berchmans S. Nitric oxide releasing photoresponsive nanohybrids as excellent therapeutic agent for cervical cancer cell lines. ACS APPLIED MATERIALS & INTERFACES 2013; 5:8263-8266. [PMID: 23952053 DOI: 10.1021/am402086m] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Gold nanoparticles (GNPs) that can release nitric oxide (NO) on visible-light irradiation were prepared using 2-mercapto-5-nitro benzimidazole (MNBI) as stabilizer. These nanoparticles meet overall prerequisites for biomedical applications like small sizes, water solubility, and stability. It was found that even a very low dosage of MNBI-stabilized GNPs exhibit appreciable tumor cell mortality against cervical cancer cell lines, demonstrating the role of NO in killing cancer cells.
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Affiliation(s)
- Priya Sudhesh
- Electrodics and Electrocatalysis Division, CSIR-Central Electrochemical Research Institute , Karaikudi, Tamilnadu 630006, India
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