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Sedmidubská B, Kočišek J. Interaction of low-energy electrons with radiosensitizers. Phys Chem Chem Phys 2024; 26:9112-9136. [PMID: 38376461 DOI: 10.1039/d3cp06003a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2024]
Abstract
We provide an experimentalist's perspective on the present state-of-the-art in the studies of low-energy electron interactions with common radiosensitizers, including compounds used in combined chemo-radiation therapy and their model systems. Low-energy electrons are important secondary species formed during the interaction of ionizing radiation with matter. Their role in the radiation chemistry of living organisms has become an important topic for more than 20 years. With the increasing number of works and reviews in the field, we would like to focus here on a very narrow area of compounds that have been shown to have radio-sensitizing properties on the one hand, and high reactivity towards low-energy electrons on the other hand. Gas phase experiments studying electron attachment to isolated molecules and environmental effects on reaction dynamics are reviewed for modified DNA components, nitroimidazoles, and organometallics. In the end, we provide a perspective on the future directions that may be important for transferring the fundamental knowledge about the processes induced by low-energy electrons into practice in the field of rational design of agents for concomitant chemo-radiation therapy.
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Affiliation(s)
- Barbora Sedmidubská
- J. Heyrovský Institute of Physical Chemistry of the CAS, Dolejškova 3, 182223 Prague, Czech Republic.
- Department of Nuclear Chemistry, Faculty of Nuclear Sciences and Physical Engineering, Břehová 7, 11519 Prague, Czech Republic
- Institut de Chimie Physique, UMR 8000 CNRS and Faculté des sciences d'Orsay, Université Paris Saclay, F-91405 Orsay Cedex, France
| | - Jaroslav Kočišek
- J. Heyrovský Institute of Physical Chemistry of the CAS, Dolejškova 3, 182223 Prague, Czech Republic.
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2
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Li D, Liu S, Yu T, Liu Z, Sun S, Bragin D, Shirokov A, Navolokin N, Bragina O, Hu Z, Kurths J, Fedosov I, Blokhina I, Dubrovski A, Khorovodov A, Terskov A, Tzoy M, Semyachkina-Glushkovskaya O, Zhu D. Photostimulation of brain lymphatics in male newborn and adult rodents for therapy of intraventricular hemorrhage. Nat Commun 2023; 14:6104. [PMID: 37775549 PMCID: PMC10541888 DOI: 10.1038/s41467-023-41710-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 09/15/2023] [Indexed: 10/01/2023] Open
Abstract
Intraventricular hemorrhage is one of the most fatal forms of brain injury that is a common complication of premature infants. However, the therapy of this type of hemorrhage is limited, and new strategies are needed to reduce hematoma expansion. Here we show that the meningeal lymphatics is a pathway to remove red blood cells from the brain's ventricular system of male human, adult and newborn rodents and is a target for non-invasive transcranial near infrared photobiomodulation. Our results uncover the clinical significance of phototherapy of intraventricular hemorrhage in 4-day old male rat pups that have the brain similar to a preterm human brain. The course of phototherapy in newborn rats provides fast recovery after intraventricular hemorrhage due to photo-improvements of lymphatic drainage and clearing functions. These findings shed light on the mechanisms of phototherapy of intraventricular hemorrhage that can be a clinically relevant technology for treatment of neonatal intracerebral bleedings.
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Affiliation(s)
- Dongyu Li
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
- School of Optical Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Shaojun Liu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Tingting Yu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China.
| | - Zhang Liu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Silin Sun
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Denis Bragin
- Lovelace Biomedical Research Institute, Albuquerque, NM, 87108, USA
- Department of Neurology University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA
| | - Alexander Shirokov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, Saratov, 410049, Russia
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
| | - Nikita Navolokin
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
- Saratov State Medical University, B. Kazachya str., 112, Saratov, 410012, Russia
| | - Olga Bragina
- Lovelace Biomedical Research Institute, Albuquerque, NM, 87108, USA
| | - Zhengwu Hu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
- School of Optical Electronic Information, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China
| | - Jürgen Kurths
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
- Physics Department, Humboldt University, Newtonstrasse 15, 12489, Berlin, Germany
- Potsdam Institute for Climate Impact Research, Telegrafenberg A31, 14473, Potsdam, Germany
- Sechenov First Moscow State Medical University, Bolshaya Pirogovskaya 2, building 4, 119435, Moscow, Russia
| | - Ivan Fedosov
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
| | - Inna Blokhina
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
| | | | | | - Andrey Terskov
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
| | - Maria Tzoy
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia
| | - Oxana Semyachkina-Glushkovskaya
- Saratov State University, Astrakhanskaya str., 83, Saratov, 410012, Russia.
- Physics Department, Humboldt University, Newtonstrasse 15, 12489, Berlin, Germany.
| | - Dan Zhu
- Britton Chance Center for Biomedical Photonics - MoE Key Laboratory for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics - Advanced Biomedical Imaging Facility, Huazhong University of Science and Technology, 430074, Wuhan, Hubei, China.
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3
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Yong J, Gröger S, VON Bremen J, Martins Marques M, Braun A, Chen X, Ruf S, Chen Q. Photobiomodulation therapy assisted orthodontic tooth movement: potential implications, challenges, and new perspectives. J Zhejiang Univ Sci B 2023; 24:957-973. [PMID: 37961799 PMCID: PMC10646401 DOI: 10.1631/jzus.b2200706] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/15/2023] [Indexed: 09/29/2023]
Abstract
Over the past decade, dramatic progress has been made in dental research areas involving laser therapy. The photobiomodulatory effect of laser light regulates the behavior of periodontal tissues and promotes damaged tissues to heal faster. Additionally, photobiomodulation therapy (PBMT), a non-invasive treatment, when applied in orthodontics, contributes to alleviating pain and reducing inflammation induced by orthodontic forces, along with improving tissue healing processes. Moreover, PBMT is attracting more attention as a possible approach to prevent the incidence of orthodontically induced inflammatory root resorption (OIIRR) during orthodontic treatment (OT) due to its capacity to modulate inflammatory, apoptotic, and anti-antioxidant responses. However, a systematic review revealed that PBMT has only a moderate grade of evidence-based effectiveness during orthodontic tooth movement (OTM) in relation to OIIRR, casting doubt on its beneficial effects. In PBMT-assisted orthodontics, delivering sufficient energy to the tooth root to achieve optimal stimulation is challenging due to the exponential attenuation of light penetration in periodontal tissues. The penetration of light to the root surface is another crucial unknown factor. Both the penetration depth and distribution of light in periodontal tissues are unknown. Thus, advanced approaches specific to orthodontic application of PBMT need to be established to overcome these limitations. This review explores possibilities for improving the application and effectiveness of PBMT during OTM. The aim was to investigate the current evidence related to the underlying mechanisms of action of PBMT on various periodontal tissues and cells, with a special focus on immunomodulatory effects during OTM.
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Affiliation(s)
- Jiawen Yong
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen 35392, Germany
| | - Sabine Gröger
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen 35392, Germany
| | - Julia VON Bremen
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen 35392, Germany
| | | | - Andreas Braun
- Department of Operative Dentistry, Periodontology and Preventive Dentistry, RWTH Aachen University, Aachen 52074, Germany
| | - Xiaoyan Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China
| | - Sabine Ruf
- Department of Orthodontics, Faculty of Medicine, Justus Liebig University Giessen, Giessen 35392, Germany
| | - Qianming Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Engineering Research Center of Oral Biomaterials and Devices of Zhejiang Province, Hangzhou 310000, China.
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Semyachkina-Glushkovskaya OV, Postnov DE, Khorovodov AP, Navolokin NA, Kurthz JHG. Lymphatic Drainage System of the Brain: a New Player in Neuroscience. J EVOL BIOCHEM PHYS+ 2023. [DOI: 10.1134/s0022093023010015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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5
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Semyachkina-Glushkovskaya O, Shirokov A, Blokhina I, Telnova V, Vodovozova E, Alekseeva A, Boldyrev I, Fedosov I, Dubrovsky A, Khorovodov A, Terskov A, Evsukova A, Elovenko D, Adushkina V, Tzoy M, Agranovich I, Kurths J, Rafailov E. Intranasal Delivery of Liposomes to Glioblastoma by Photostimulation of the Lymphatic System. Pharmaceutics 2022; 15:pharmaceutics15010036. [PMID: 36678667 PMCID: PMC9867158 DOI: 10.3390/pharmaceutics15010036] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/10/2022] [Accepted: 12/19/2022] [Indexed: 12/25/2022] Open
Abstract
The blood-brain barrier (BBB) limits the delivery of majority of cancer drugs and thereby complicates brain tumor treatment. The nasal-brain-lymphatic system is discussed as a pathway for brain drug delivery overcoming the BBB. However, in most cases, this method is not sufficient to achieve a therapeutic effect due to brain drug delivery in a short distance. Therefore, it is necessary to develop technologies to overcome the obstacles facing nose-to-brain delivery of promising pharmaceuticals. In this study, we clearly demonstrate intranasal delivery of liposomes to the mouse brain reaching glioblastoma (GBM). In the experiments with ablation of the meningeal lymphatic network, we report an important role of meningeal pathway for intranasal delivery of liposomes to the brain. Our data revealed that GBM is characterized by a dramatic reduction of intranasal delivery of liposomes to the brain that was significantly improved by near-infrared (1267 nm) photostimulation of the lymphatic vessels in the area of the cribriform plate and the meninges. These results open new perspectives for non-invasive improvement of efficiency of intranasal delivery of cancer drugs to the brain tissues using nanocarriers and near-infrared laser-based therapeutic devices, which are commercially available and widely used in clinical practice.
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Affiliation(s)
- Oxana Semyachkina-Glushkovskaya
- Institute of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Alexander Shirokov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Prospekt Entuziastov 13, 410049 Saratov, Russia
| | - Inna Blokhina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Valeria Telnova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Elena Vodovozova
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Anna Alekseeva
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Ivan Boldyrev
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho-Maklaya 16/10, 117997 Moscow, Russia
| | - Ivan Fedosov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Alexander Dubrovsky
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Alexandr Khorovodov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Andrey Terskov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Arina Evsukova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Daria Elovenko
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Viktoria Adushkina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Maria Tzoy
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Ilana Agranovich
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
| | - Jürgen Kurths
- Institute of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia
- Department of Complexity Science, Potsdam Institute for Climate Impact Research, Telegrafenberg A31, 14473 Potsdam, Germany
| | - Edik Rafailov
- Optoelectronics and Biomedical Photonics Group, AIPT, Aston University, Birmingham B4 7ET, UK
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6
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Rohaun SK, Imlay JA. The vulnerability of radical SAM enzymes to oxidants and soft metals. Redox Biol 2022; 57:102495. [PMID: 36240621 PMCID: PMC9576991 DOI: 10.1016/j.redox.2022.102495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 09/28/2022] [Accepted: 09/29/2022] [Indexed: 11/30/2022] Open
Abstract
Radical S-adenosylmethionine enzymes (RSEs) drive diverse biological processes by catalyzing chemically difficult reactions. Each of these enzymes uses a solvent-exposed [4Fe-4S] cluster to coordinate and cleave its SAM co-reactant. This cluster is destroyed during oxic handling, forcing investigators to work with these enzymes under anoxic conditions. Analogous substrate-binding [4Fe-4S] clusters in dehydratases are similarly sensitive to oxygen in vitro; they are also extremely vulnerable to reactive oxygen species (ROS) in vitro and in vivo. These observations suggested that ROS might similarly poison RSEs. This conjecture received apparent support by the observation that when E. coli experiences hydrogen peroxide stress, it induces a cluster-free isozyme of the RSE HemN. In the present study, surprisingly, the purified RSEs viperin and HemN proved quite resistant to peroxide and superoxide in vitro. Furthermore, pathways that require RSEs remained active inside E. coli cells that were acutely stressed by hydrogen peroxide and superoxide. Viperin, but not HemN, was gradually poisoned by molecular oxygen in vitro, forming an apparent [3Fe-4S]+ form that was readily reactivated. The modest rate of damage, and the known ability of cells to repair [3Fe-4S]+ clusters, suggest why these RSEs remain functional inside fully aerated organisms. In contrast, copper(I) damaged HemN and viperin in vitro as readily as it did fumarase, a known target of copper toxicity inside E. coli. Excess intracellular copper also impaired RSE-dependent biosynthetic processes. These data indicate that RSEs may be targets of copper stress but not of reactive oxygen species.
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Affiliation(s)
| | - James A Imlay
- Department of Microbiology, University of Illinois, Urbana, IL, 61801, USA.
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Oza PP, Kashfi K. Utility of NO and H 2S donating platforms in managing COVID-19: Rationale and promise. Nitric Oxide 2022; 128:72-102. [PMID: 36029975 PMCID: PMC9398942 DOI: 10.1016/j.niox.2022.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/01/2022] [Accepted: 08/10/2022] [Indexed: 01/08/2023]
Abstract
Viral infections are a continuing global burden on the human population, underscored by the ramifications of the COVID-19 pandemic. Current treatment options and supportive therapies for many viral infections are relatively limited, indicating a need for alternative therapeutic approaches. Virus-induced damage occurs through direct infection of host cells and inflammation-related changes. Severe cases of certain viral infections, including COVID-19, can lead to a hyperinflammatory response termed cytokine storm, resulting in extensive endothelial damage, thrombosis, respiratory failure, and death. Therapies targeting these complications are crucial in addition to antiviral therapies. Nitric oxide and hydrogen sulfide are two endogenous gasotransmitters that have emerged as key signaling molecules with a broad range of antiviral actions in addition to having anti-inflammatory properties and protective functions in the vasculature and respiratory system. The enhancement of endogenous nitric oxide and hydrogen sulfide levels thus holds promise for managing both early-stage and later-stage viral infections, including SARS-CoV-2. Using SARS-CoV-2 as a model for similar viral infections, here we explore the current evidence regarding nitric oxide and hydrogen sulfide's use to limit viral infection, resolve inflammation, and reduce vascular and pulmonary damage.
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Affiliation(s)
- Palak P Oza
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA
| | - Khosrow Kashfi
- Department of Molecular, Cellular and Biomedical Sciences, Sophie Davis School of Biomedical Education, City University of New York School of Medicine, New York, NY, 10031, USA; Graduate Program in Biology, City University of New York Graduate Center, New York, 10091, USA.
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8
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Chakraborty S, Mukherjee P, Sengupta R. Ribonucleotide reductase: Implications of thiol S-nitrosylation and tyrosine nitration for different subunits. Nitric Oxide 2022; 127:26-43. [PMID: 35850377 DOI: 10.1016/j.niox.2022.07.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 05/20/2022] [Accepted: 07/08/2022] [Indexed: 11/20/2022]
Abstract
Ribonucleotide reductase (RNR) is a multi-subunit enzyme responsible for catalyzing the rate-limiting step in the production of deoxyribonucleotides essential for DNA synthesis and repair. The active RNR complex is composed of multimeric R1 and R2 subunits. The RNR catalysis involves the formation of tyrosyl radicals in R2 subunits and thiyl radicals in R1 subunits. Despite the quaternary structure and cofactor diversity, all the three classes of RNR have a conserved cysteine residue at the active site which is converted into a thiyl radical that initiates the substrate turnover, suggesting that the catalytic mechanism is somewhat similar for all three classes of the RNR enzyme. Increased RNR activity has been associated with malignant transformation, cancer cell growth, and tumorigenesis. Efforts concerning the understanding of RNR inhibition in designing potent RNR inhibitors/drugs as well as developing novel approaches for antibacterial, antiviral treatments, and cancer therapeutics with improved radiosensitization have been made in clinical research. This review highlights the precise and potent roles of NO in RNR inhibition by targeting both the subunits. Under nitrosative stress, the thiols of the R1 subunits have been found to be modified by S-nitrosylation and the tyrosyl radicals of the R2 subunits have been modified by nitration. In view of the recent advances and progresses in the field of nitrosative modifications and its fundamental role in signaling with implications in health and diseases, the present article focuses on the regulations of RNR activity by S-nitrosylation of thiols (R1 subunits) and nitration of tyrosyl residues (R2 subunits) which will further help in designing new drugs and therapies.
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Affiliation(s)
- Surupa Chakraborty
- Amity Institute of Biotechnology, Amity University, Kolkata, 700135, West Bengal, India
| | - Prerona Mukherjee
- Amity Institute of Biotechnology, Amity University, Kolkata, 700135, West Bengal, India
| | - Rajib Sengupta
- Amity Institute of Biotechnology, Amity University, Kolkata, 700135, West Bengal, India.
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9
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Semyachkina-Glushkovskaya O, Penzel T, Blokhina I, Khorovodov A, Fedosov I, Yu T, Karandin G, Evsukova A, Elovenko D, Adushkina V, Shirokov A, Dubrovskii A, Terskov A, Navolokin N, Tzoy M, Ageev V, Agranovich I, Telnova V, Tsven A, Kurths J. Night Photostimulation of Clearance of Beta-Amyloid from Mouse Brain: New Strategies in Preventing Alzheimer's Disease. Cells 2021; 10:3289. [PMID: 34943796 PMCID: PMC8699220 DOI: 10.3390/cells10123289] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 12/11/2022] Open
Abstract
The deposition of amyloid-β (Aβ) in the brain is a risk factor for Alzheimer's disease (AD). Therefore, new strategies for the stimulation of Aβ clearance from the brain can be useful in preventing AD. Transcranial photostimulation (PS) is considered a promising method for AD therapy. In our previous studies, we clearly demonstrated the PS-mediated stimulation of lymphatic clearing functions, including Aβ removal from the brain. There is increasing evidence that sleep plays an important role in Aβ clearance. Here, we tested our hypothesis that PS at night can stimulate Aβ clearance from the brain more effectively than PS during the day. Our results on healthy mice show that Aβ clearance from the brain occurs faster at night than during wakefulness. The PS course at night improves memory and reduces Aβ accumulation in the brain of AD mice more effectively than the PS course during the day. Our results suggest that night PS is a more promising candidate as an effective method in preventing AD than daytime PS. These data are an important informative platform for the development of new noninvasive and nonpharmacological technologies for AD therapy as well as for preventing Aβ accumulation in the brain of people with disorder of Aβ metabolism, sleep deficit, elderly age, and jet lag.
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Affiliation(s)
- Oxana Semyachkina-Glushkovskaya
- Institute of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany;
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Thomas Penzel
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
- Sleep Medicine Center, Charité-Universitätsmedizin Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Inna Blokhina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Alexander Khorovodov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Ivan Fedosov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Tingting Yu
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China;
- Collaborative Innovation Center for Biomedical Engineering, MoE Key Laboratory for Biomedical Photonics, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Georgy Karandin
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Arina Evsukova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Dariya Elovenko
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Viktoria Adushkina
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Alexander Shirokov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
- Saratov Scientific Centre of the Russian Academy of Sciences (IBPPM RAS), Institute of Biochemistry and Physiology of Plants and Microorganisms, Prospekt Entuziastov 13, 410049 Saratov, Russia
| | - Alexander Dubrovskii
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Andrey Terskov
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Nikita Navolokin
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
- Department of Pathological Anatomy, Saratov Medical State University, Kazachaya 112, 410012 Saratov, Russia
| | - Maria Tzoy
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Vasily Ageev
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Ilana Agranovich
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Valeria Telnova
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Anna Tsven
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
| | - Jürgen Kurths
- Institute of Physics, Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany;
- Department of Biology, Saratov State University, Astrakhanskaya 82, 410012 Saratov, Russia; (T.P.); (I.B.); (A.K.); (I.F.); (G.K.); (A.E.); (D.E.); (V.A.); (A.S.); (A.D.); (A.T.); (N.N.); (M.T.); (V.A.); (I.A.); (V.T.); (A.T.)
- Department of Complexity Science, Potsdam Institute for Climate Impact Research, Telegrafenberg A31, 14473 Potsdam, Germany
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10
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Ma L, Gholam Azad M, Dharmasivam M, Richardson V, Quinn RJ, Feng Y, Pountney DL, Tonissen KF, Mellick GD, Yanatori I, Richardson DR. Parkinson's disease: Alterations in iron and redox biology as a key to unlock therapeutic strategies. Redox Biol 2021; 41:101896. [PMID: 33799121 PMCID: PMC8044696 DOI: 10.1016/j.redox.2021.101896] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022] Open
Abstract
A plethora of studies indicate that iron metabolism is dysregulated in Parkinson's disease (PD). The literature reveals well-documented alterations consistent with established dogma, but also intriguing paradoxical observations requiring mechanistic dissection. An important fact is the iron loading in dopaminergic neurons of the substantia nigra pars compacta (SNpc), which are the cells primarily affected in PD. Assessment of these changes reveal increased expression of proteins critical for iron uptake, namely transferrin receptor 1 and the divalent metal transporter 1 (DMT1), and decreased expression of the iron exporter, ferroportin-1 (FPN1). Consistent with this is the activation of iron regulator protein (IRP) RNA-binding activity, which is an important regulator of iron homeostasis, with its activation indicating cytosolic iron deficiency. In fact, IRPs bind to iron-responsive elements (IREs) in the 3ꞌ untranslated region (UTR) of certain mRNAs to stabilize their half-life, while binding to the 5ꞌ UTR prevents translation. Iron loading of dopaminergic neurons in PD may occur through these mechanisms, leading to increased neuronal iron and iron-mediated reactive oxygen species (ROS) generation. The "gold standard" histological marker of PD, Lewy bodies, are mainly composed of α-synuclein, the expression of which is markedly increased in PD. Of note, an atypical IRE exists in the α-synuclein 5ꞌ UTR that may explain its up-regulation by increased iron. This dysregulation could be impacted by the unique autonomous pacemaking of dopaminergic neurons of the SNpc that engages L-type Ca+2 channels, which imparts a bioenergetic energy deficit and mitochondrial redox stress. This dysfunction could then drive alterations in iron trafficking that attempt to rescue energy deficits such as the increased iron uptake to provide iron for key electron transport proteins. Considering the increased iron-loading in PD brains, therapies utilizing limited iron chelation have shown success. Greater therapeutic advancements should be possible once the exact molecular pathways of iron processing are dissected.
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Affiliation(s)
- L Ma
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - M Gholam Azad
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - M Dharmasivam
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - V Richardson
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - R J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - Y Feng
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - D L Pountney
- School of Medical Science, Griffith University, Gold Coast, Queensland, Australia
| | - K F Tonissen
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - G D Mellick
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - I Yanatori
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - D R Richardson
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan.
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11
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Tian S, Fan R, Albert T, Khade RL, Dai H, Harnden KA, Hosseinzadeh P, Liu J, Nilges MJ, Zhang Y, Moënne-Loccoz P, Guo Y, Lu Y. Stepwise nitrosylation of the nonheme iron site in an engineered azurin and a molecular basis for nitric oxide signaling mediated by nonheme iron proteins. Chem Sci 2021; 12:6569-6579. [PMID: 34040732 PMCID: PMC8132939 DOI: 10.1039/d1sc00364j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Mononitrosyl and dinitrosyl iron species, such as {FeNO}7, {FeNO}8 and {Fe(NO)2}9, have been proposed to play pivotal roles in the nitrosylation processes of nonheme iron centers in biological systems. Despite their importance, it has been difficult to capture and characterize them in the same scaffold of either native enzymes or their synthetic analogs due to the distinct structural requirements of the three species, using redox reagents compatible with biomolecules under physiological conditions. Here, we report the realization of stepwise nitrosylation of a mononuclear nonheme iron site in an engineered azurin under such conditions. Through tuning the number of nitric oxide equivalents and reaction time, controlled formation of {FeNO}7 and {Fe(NO)2}9 species was achieved, and the elusive {FeNO}8 species was inferred by EPR spectroscopy and observed by Mössbauer spectroscopy, with complemental evidence for the conversion of {FeNO}7 to {Fe(NO)2}9 species by UV-Vis, resonance Raman and FT-IR spectroscopies. The entire pathway of the nitrosylation process, Fe(ii) → {FeNO}7 → {FeNO}8 → {Fe(NO)2}9, has been elucidated within the same protein scaffold based on spectroscopic characterization and DFT calculations. These results not only enhance the understanding of the dinitrosyl iron complex formation process, but also shed light on the physiological roles of nitric oxide signaling mediated by nonheme iron proteins. Stepwise nitrosylation from Fe(ii) to {FeNO}7, {FeNO}8 and then to {Fe(NO)2}9 is reported for the first time in the same protein scaffold, providing deeper understanding of the detailed mechanism of dinitrosyl iron complex formation.![]()
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Affiliation(s)
- Shiliang Tian
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Ruixi Fan
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA USA +1-412-268-1061 +1-412-268-1704
| | - Therese Albert
- Department of Chemical Physiology and Biochemistry, Oregon Health & Science University 3181 S.W. Sam Jackson Park Road Portland OR USA +1-503-346-3429
| | - Rahul L Khade
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology 1 Castle Point Terrace Hoboken NJ USA +1-201-216-8240 +1-201-216-5513
| | - Huiguang Dai
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Kevin A Harnden
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Parisa Hosseinzadeh
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Jing Liu
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Mark J Nilges
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
| | - Yong Zhang
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology 1 Castle Point Terrace Hoboken NJ USA +1-201-216-8240 +1-201-216-5513
| | - Pierre Moënne-Loccoz
- Department of Chemical Physiology and Biochemistry, Oregon Health & Science University 3181 S.W. Sam Jackson Park Road Portland OR USA +1-503-346-3429
| | - Yisong Guo
- Department of Chemistry, Carnegie Mellon University 4400 Fifth Avenue Pittsburgh PA USA +1-412-268-1061 +1-412-268-1704
| | - Yi Lu
- Department of Chemistry, Department of Biochemistry, School of Chemical Sciences Electron Paramagnetic Resonance Lab, University of Illinois at Urbana-Champaign 600 South Mathews Avenue Urbana IL USA +1-217-333-2619
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12
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Crous A, Abrahamse H. The Signalling Effects of Photobiomodulation on Osteoblast Proliferation, Maturation and Differentiation: A Review. Stem Cell Rev Rep 2021; 17:1570-1589. [PMID: 33686595 DOI: 10.1007/s12015-021-10142-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2021] [Indexed: 02/06/2023]
Abstract
Proliferation of osteoblasts is essential for maturation and mineralization of bone matrix. Ossification, the natural phase of bone-forming and hardening is a carefully regulated phase where deregulation of this process may result in insufficient or excessive bone mineralization or ectopic calcification. Osteoblasts can also be differentiated into osteocytes, populating short interconnecting passages within the bone matrix. Over the past few decades, we have seen a significant improvement in awareness and techniques using photobiomodulation (PBM) to stimulate cell function. One of the applications of PBM is the promotion of osteoblast proliferation and maturation. PBM research results on osteoblasts showed increased mitochondrial ATP production, increased osteoblast activity and proliferation, increased and pro-osteoblast expression in the presence of red and NIR radiation. Osteocyte differentiation was also accomplished using blue and green light, showing that different light parameters have various signalling effects. The current review addresses osteoblast function and control, a new understanding of PBM on osteoblasts and its therapeutic impact using various parameters to optimize osteoblast function that may be clinically important. Graphical Abstract.
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Affiliation(s)
- Anine Crous
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, PO Box 17011, Johannesburg, 2028, South Africa.
| | - Heidi Abrahamse
- Laser Research Centre, Faculty of Health Sciences, University of Johannesburg, PO Box 17011, Johannesburg, 2028, South Africa
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13
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Sengupta R, Coppo L, Sircar E, Mishra P, Holmgren A. S‐Denitrosylation by the C‐Terminal Swinging Arm of R1 Subunit: A Novel Mechanism to Restore Ribonucleotide Reductase Activity. ChemistrySelect 2021. [DOI: 10.1002/slct.202100153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Rajib Sengupta
- Division of Biochemistry Department of Medical Biochemistry and Biophysics, Karolinska Institute Stockholm Sweden
- Amity Institute of Biotechnology Amity University, Major Arterial Road, Rajarhat, New Town Kolkata 700135, West Bengal India
| | - Lucia Coppo
- Division of Biochemistry Department of Medical Biochemistry and Biophysics, Karolinska Institute Stockholm Sweden
| | - Esha Sircar
- Amity Institute of Biotechnology Amity University, Major Arterial Road, Rajarhat, New Town Kolkata 700135, West Bengal India
| | - Pradeep Mishra
- Division of Biochemistry Department of Medical Biochemistry and Biophysics, Karolinska Institute Stockholm Sweden
| | - Arne Holmgren
- Division of Biochemistry Department of Medical Biochemistry and Biophysics, Karolinska Institute Stockholm Sweden
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14
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Yeo CT, Stancill JS, Oleson BJ, Schnuck JK, Stafford JD, Naatz A, Hansen PA, Corbett JA. Regulation of ATR-dependent DNA damage response by nitric oxide. J Biol Chem 2021; 296:100388. [PMID: 33567339 PMCID: PMC7967039 DOI: 10.1016/j.jbc.2021.100388] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Accepted: 02/02/2021] [Indexed: 02/01/2023] Open
Abstract
We have shown that nitric oxide limits ataxia-telangiectasia mutated signaling by inhibiting mitochondrial oxidative metabolism in a β-cell selective manner. In this study, we examined the actions of nitric oxide on a second DNA damage response transducer kinase, ataxia-telangiectasia and Rad3-related protein (ATR). In β-cells and non-β-cells, nitric oxide activates ATR signaling by inhibiting ribonucleotide reductase; however, when produced at inducible nitric oxide synthase-derived (low micromolar) levels, nitric oxide impairs ATR signaling in a β-cell selective manner. The inhibitory actions of nitric oxide are associated with impaired mitochondrial oxidative metabolism and lack of glycolytic compensation that result in a decrease in β-cell ATP. Like nitric oxide, inhibitors of mitochondrial respiration reduce ATP levels and limit ATR signaling in a β-cell selective manner. When non-β-cells are forced to utilize mitochondrial oxidative metabolism for ATP generation, their response is more like β-cells, as nitric oxide and inhibitors of mitochondrial respiration attenuate ATR signaling. These studies support a dual role for nitric oxide in regulating ATR signaling. Nitric oxide activates ATR in all cell types examined by inhibiting ribonucleotide reductase, and in a β-cell selective manner, inducible nitric oxide synthase-derived levels of nitric oxide limit ATR signaling by attenuating mitochondrial oxidative metabolism and depleting ATP.
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15
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Wiegand SB, Traeger L, Nguyen HK, Rouillard KR, Fischbach A, Zadek F, Ichinose F, Schoenfisch MH, Carroll RW, Bloch DB, Zapol WM. Antimicrobial effects of nitric oxide in murine models of Klebsiella pneumonia. Redox Biol 2021; 39:101826. [PMID: 33352464 PMCID: PMC7729265 DOI: 10.1016/j.redox.2020.101826] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/01/2020] [Accepted: 12/02/2020] [Indexed: 11/02/2022] Open
Abstract
RATIONALE Inhalation of nitric oxide (NO) exerts selective pulmonary vasodilation. Nitric oxide also has an antimicrobial effect on a broad spectrum of pathogenic viruses, bacteria and fungi. OBJECTIVES The aim of this study was to investigate the effect of inhaled NO on bacterial burden and disease outcome in a murine model of Klebsiella pneumonia. METHODS Mice were infected with Klebsiella pneumoniae and inhaled either air alone, air mixed with constant levels of NO (at 80, 160, or 200 parts per million (ppm)) or air intermittently mixed with high dose NO (300 ppm). Forty-eight hours after airway inoculation, the number of viable bacteria in lung, spleen and blood was determined. The extent of infiltration of the lungs by inflammatory cells and the level of myeloperoxidase activity in the lungs were measured. Atomic force microscopy was used to investigate a possible mechanism by which nitric oxide exerts a bactericidal effect. MEASUREMENTS AND MAIN RESULTS Compared to control animals infected with K. pneumoniae and breathed air alone, intermittent breathing of NO (300 ppm) reduced viable bacterial counts in lung and spleen tissue. Inhaled NO reduced infection-induced lung inflammation and improved overall survival of mice. NO destroyed the cell wall of K. pneumoniae and killed multiple-drug resistant K. pneumoniae in-vitro. CONCLUSIONS Intermittent administration of high dose NO may be an effective approach to the treatment of pneumonia caused by K. pneumoniae.
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Affiliation(s)
- Steffen B Wiegand
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Lisa Traeger
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Huan K Nguyen
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Rd, Chapel Hill, NC, 27514, USA
| | - Kaitlyn R Rouillard
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Rd, Chapel Hill, NC, 27514, USA
| | - Anna Fischbach
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Francesco Zadek
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Fumito Ichinose
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Mark H Schoenfisch
- Department of Chemistry, University of North Carolina at Chapel Hill, 125 South Rd, Chapel Hill, NC, 27514, USA
| | - Ryan W Carroll
- Department of Pediatric Critical Care Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Donald B Bloch
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA; Division of Rheumatology, Allergy and Immunology, Department of Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA
| | - Warren M Zapol
- Anesthesia Center for Critical Care Research of the Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, 55 Fruit St, Boston, MA, 02114, USA.
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16
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Mokry RL, Schumacher ML, Hogg N, Terhune SS. Nitric Oxide Circumvents Virus-Mediated Metabolic Regulation during Human Cytomegalovirus Infection. mBio 2020; 11:e02630-20. [PMID: 33323506 PMCID: PMC7773989 DOI: 10.1128/mbio.02630-20] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Accepted: 10/30/2020] [Indexed: 12/25/2022] Open
Abstract
Nitric oxide is a versatile and critical effector molecule that can modulate many cellular functions. Although recognized as a regulator of infections, the inhibitory mechanism of nitric oxide against human cytomegalovirus (HCMV) replication remains elusive. We demonstrate that nitric oxide attenuates viral replication by interfering with HCMV-mediated modulation of several cellular processes. Nitric oxide exposure reduced HCMV genome synthesis and infectious viral progeny with cell-type-dependent differences observed. Mitochondrial respiration was severely reduced in both uninfected and HCMV-infected cells during exposure with little impact on ATP levels indicating changes in cellular metabolism. Metabolomics identified significantly altered small molecules in multiple pathways during nitric oxide exposure including nucleotide biosynthesis, tricarboxylic acid (TCA) cycle, and glutamine metabolism. Glutathione metabolites were increased coinciding with a reduction in the glutathione precursor glutamine. This shift was accompanied by increased antioxidant enzymes. Glutamine deprivation mimicked defects in HCMV replication and mitochondrial respiration observed during nitric oxide exposure. These data suggest that nitric oxide limits glutaminolysis by shuttling glutamine to glutathione synthesis. In addition, lipid intermediates were severely altered, which likely contributes to the observed increase in defective viral particles. Nitric oxide disrupts multiple cellular processes, and we had limited success in rescuing replication defects by supplementing with metabolic intermediates. Our studies indicate that nitric oxide attenuation of HCMV is multifactorial with interference in viral manipulation of cellular metabolism playing a central role.IMPORTANCE Human cytomegalovirus is a prevalent pathogen that can cause serious disease in patients with compromised immune systems, including transplant patients and during congenital infection. HCMV lytic replication likely occurs in localized sites of infection with immune cells infiltrating and releasing nitric oxide with other effector molecules. This nonspecific immune response results in both uninfected and infected cells exposed to high levels of nitric oxide. The absence of nitric oxide synthase has been associated with lethal HCMV infection. We demonstrate that nitric oxide inhibition of HCMV replication is multifactorial and cell type dependent. Our results indicate that nitric oxide controls replication by interfering with viral modulation of cellular metabolism while also affecting proliferation and mitochondrial respiration of neighboring uninfected cells. These studies identify the mechanism and contribution of nitric oxide during immune control of HCMV infection and provide insight into its role in other viral infections.
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Affiliation(s)
- Rebekah L Mokry
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Megan L Schumacher
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Neil Hogg
- Department of Biophysics, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
| | - Scott S Terhune
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
- Marquette University and Medical College of Wisconsin Department of Biomedical Engineering, Medical College of Wisconsin, Milwaukee, Wisconsin, USA
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17
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Yousuf S, Karlinsey JE, Neville SL, McDevitt CA, Libby SJ, Fang FC, Frawley ER. Manganese import protects Salmonella enterica serovar Typhimurium against nitrosative stress. Metallomics 2020; 12:1791-1801. [PMID: 33078811 DOI: 10.1039/d0mt00178c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Nitric oxide (NO˙) is a radical molecule produced by mammalian phagocytic cells as part of the innate immune response to bacterial pathogens. It exerts its antimicrobial activity in part by impairing the function of metalloproteins, particularly those containing iron and zinc cofactors. The pathogenic Gram-negative bacterium Salmonella enterica serovar typhimurium undergoes dynamic changes in its cellular content of the four most common metal cofactors following exposure to NO˙ stress. Zinc, iron and magnesium all decrease in response to NO˙ while cellular manganese increases significantly. Manganese acquisition is driven primarily by increased expression of the mntH and sitABCD transporters following derepression of MntR and Fur. ZupT also contributes to manganese acquisition in response to nitrosative stress. S. Typhimurium mutants lacking manganese importers are more sensitive to NO˙, indicating that manganese is important for resistance to nitrosative stress.
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Affiliation(s)
- Shehla Yousuf
- Rhodes College Biology Department, 2000 North Parkway, Memphis, TN 38112, USA.
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Biochemical Research of the Effects of Essential Oil Obtained from the Fruit of Myrtus communis L. on Cell Damage Associated with Lipopolysaccharide-Induced Endotoxemia in a Human Umbilical Cord Vein Endothelial Cells. Biochem Genet 2020; 59:315-334. [PMID: 33044583 DOI: 10.1007/s10528-020-10005-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Accepted: 12/04/2018] [Indexed: 01/16/2023]
Abstract
The aim of this study to investigate the potential effects of essential oils and compounds obtained from MC fruit on sepsis induced endothelial cell damage in human umbilical cord vein endothelial cells (HUVECs) at molecular and cellular levels on in vitro sepsis model. A sepsis model was induced by the application of LPS. The HUVEC treatment groups were as follows: control, LPS, MC, MC plus LPS, 1.8 cineole, 1.8 cineole plus LPS, α-pinene, α-pinene plus LPS, α-terpineol, and α-terpineol plus LPS. Following the treatments, cell proliferation was analyzed using the xCELLigence® system. The mRNA expression of various cytokines [tumor necrosis factor (TNF-α), interleukin-1β (IL-1β), and IL-6] and endothelial nitric oxide (eNOS) were determined by quantitative polymerase chain reaction (qPCR) analysis. The 1.8 cineole and α-pinene treatments at specific doses showed toxic effects on α-terpineine, although it did not result in a change in the cellular index as compared with that of the control group. The application of LPS to HUVECs led to a significant decrease in the cellular index, depending on the treatment time. It did not correct the decreased cell index of MC plus LPS and α-terpineol plus LPS groups as compared with that of the LPS-only group. The 1.8 cineole plus LPS treatment and α-pinene plus LPS treatment significantly increased the cell index as compared with that of the LPS-only treatment, and the cell index in these groups was closer to that of the control. According to the results of the qPCR analysis, neither the MC-only treatment nor the α-terpineol-only treatment significantly reduced cellular damage caused by LPS-induced increases in TNF-α, IL-1β, IL-6, and eNOS mRNA expression. However, both the 1.8 cineole treatment and α-pinene treatments significantly decreased TNF-α, IL-1β, IL-6, and eNOS mRNA expression induced by LPS. Volatile oil obtained from MC fruit and the MC compound α-terpineol had no effect on the decreased cell index and increased cytokine response due to LPS-induced endothelial cell damage. However, 1.8 cineole and α-pinene, other major components of MC fruit, ameliorated LPS-induced damage in HUVECs at cellular and biomolecular levels (TNF-α, IL-1β, IL-6, and eNOS).
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El-Garawani IM, El-Nabi SH, El-Shafey S, Elfiky M, Nafie E. Coffea arabica Bean Extracts and Vitamin C: A Novel Combination Unleashes MCF-7 Cell Death. Curr Pharm Biotechnol 2020; 21:23-36. [PMID: 31438827 DOI: 10.2174/1389201020666190822161337] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 07/13/2019] [Accepted: 07/31/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND Vitamin C (VC) is believed to enhance immunity and is regularly integrated as a supplementary agent during several treatments. OBJECTIVE The green (GC) and roasted (RC) coffee (Coffea arabica) aqueous extracts (0, 125, 250 and 500 μg/ml) combined with VC (50 μg/ml) were examined on the cancerous MCF-7 cell line and normal human lymphocytes. METHODS Neutral red uptake assay, comet assay, immunocytochemical reactivity for protein expression and mRNA expression of apoptosis-related genes were performed. RESULTS A significant (P< 0.05) concentration-dependent increase of apoptotic features, such as morphological changes, and abundant nuclear condensation, altered the expression of p53 and caspase-3 mRNA, down-regulation of Bcl-2 protein as well as the acidic autophagosomal vacuolization in treated cells. The oxidative stress and DNA single-strand breaks were noticed too. CONCLUSION These results suggest that coffee in combination with VC undergoes apoptotic anticancer pathway. This supports the integration of coffee and VC as a valuable candidate for anticancer research and treatments.
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Affiliation(s)
- Islam M El-Garawani
- Zoology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Menoufia, Egypt
| | - Sobhy H El-Nabi
- Zoology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Menoufia, Egypt
| | - Samraa El-Shafey
- Zoology Department, Faculty of Science, Menoufia University, Shebin El-Kom, Menoufia, Egypt
| | - Mohamed Elfiky
- Department of Anatomy and Embryology, Faculty of Medicine, Menoufia University, Menoufia, Egypt
| | - Ebtesam Nafie
- Department of Zoology, Faculty of Science, Benha University, Benha, Egypt
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20
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Semyachkina‐Glushkovskaya O, Abdurashitov A, Klimova M, Dubrovsky A, Shirokov A, Fomin A, Terskov A, Agranovich I, Mamedova A, Khorovodov A, Vinnik V, Blokhina I, Lezhnev N, Shareef AE, Kuzmina A, Sokolovski S, Tuchin V, Rafailov E, Kurths J. Photostimulation of cerebral and peripheral lymphatic functions. TRANSLATIONAL BIOPHOTONICS 2020. [DOI: 10.1002/tbio.201900036] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Affiliation(s)
| | | | | | | | - Alexander Shirokov
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences Saratov Russia
| | - Alexander Fomin
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences Saratov Russia
| | | | | | | | | | | | | | | | | | | | - Sergey Sokolovski
- Saratov State University Saratov Russia
- Optoelectronics and Biomedical Photonics GroupAston University Birmingham UK
| | - Valery Tuchin
- Saratov State University Saratov Russia
- Institute of Precision Mechanics and Control, Russian Academy of Science Saratov Russia
- Tomsk State University Tomsk Russia
| | - Edik Rafailov
- Saratov State University Saratov Russia
- Optoelectronics and Biomedical Photonics GroupAston University Birmingham UK
| | - Jurgen Kurths
- Saratov State University Saratov Russia
- Humboldt University Berlin Germany
- Institute of Climate Impact Research Potsdam Germany
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21
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Duan H, Gao S, Li X, Ab Hamid NH, Jiang G, Zheng M, Bai X, Bond PL, Lu X, Chislett MM, Hu S, Ye L, Yuan Z. Improving wastewater management using free nitrous acid (FNA). WATER RESEARCH 2020; 171:115382. [PMID: 31855696 DOI: 10.1016/j.watres.2019.115382] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/06/2019] [Accepted: 12/07/2019] [Indexed: 05/06/2023]
Abstract
Free nitrous acid (FNA), the protonated form of nitrite, has historically been an unwanted substance in wastewater systems due to its inhibition on a wide range of microorganisms. However, in recent years, advanced understanding of FNA inhibitory and biocidal effects on microorganisms has led to the development of a series of FNA-based applications that improve wastewater management practices. FNA has been used in sewer systems to control sewer corrosion and odor; in wastewater treatment to achieve carbon and energy efficient nitrogen removal; in sludge management to improve the sludge reduction and energy recovery; in membrane systems to address membrane fouling; and in wastewater algae systems to facilitate algae harvesting. This paper aims to comprehensively and critically review the current status of FNA-based applications in improving wastewater management. The underlying mechanisms of FNA inhibitory and biocidal effects are also reviewed and discussed. Knowledge gaps and current limitations of the FNA-based applications are identified; and perspectives on the development of FNA-based applications are discussed. We conclude that the FNA-based technologies have great potential for enhancing the performance of wastewater systems; however, further development and demonstration at larger scales are still required for their wider applications.
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Affiliation(s)
- Haoran Duan
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia; School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Shuhong Gao
- Institute for Environmental Genomics, Department of Microbiology and Plant Biology, University of Oklahoma, Norman, OK, 73019, United States
| | - Xuan Li
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Nur Hafizah Ab Hamid
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Guangming Jiang
- School of Civil, Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW, 2522, Australia
| | - Min Zheng
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Xue Bai
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Philip L Bond
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Xuanyu Lu
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia; School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Mariella M Chislett
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Shihu Hu
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Liu Ye
- School of Chemical Engineering, The University of Queensland, St. Lucia, QLD, 4072, Australia
| | - Zhiguo Yuan
- Advanced Water Management Centre, The University of Queensland, St Lucia, QLD, 4072, Australia.
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22
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Semyachkina-Glushkovskaya O, Abdurashitov A, Dubrovsky A, Klimova M, Agranovich I, Terskov A, Shirokov A, Vinnik V, Kuzmina A, Lezhnev N, Blokhina I, Shnitenkova A, Tuchin V, Rafailov E, Kurths J. Photobiomodulation of lymphatic drainage and clearance: perspective strategy for augmentation of meningeal lymphatic functions. BIOMEDICAL OPTICS EXPRESS 2020; 11:725-734. [PMID: 32206394 PMCID: PMC7041454 DOI: 10.1364/boe.383390] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/25/2019] [Accepted: 01/05/2020] [Indexed: 06/10/2023]
Abstract
There is a hypothesis that augmentation of the drainage and clearing function of the meningeal lymphatic vessels (MLVs) might be a promising therapeutic target for preventing neurological diseases. Here we investigate mechanisms of photobiomodulation (PBM, 1267 nm) of lymphatic drainage and clearance. Our results obtained at optical coherence tomography (OCT) give strong evidence that low PBM doses (5 and 10 J/cm2) stimulate drainage function of the lymphatic vessels via vasodilation (OCT data on the mesenteric lymphatics) and stimulation of lymphatic clearance (OCT data on clearance of gold nanorods from the brain) that was supported by confocal imaging of clearance of FITC-dextran from the cortex via MLVs. We assume that PBM-mediated relaxation of the lymphatic vessels can be possible mechanisms underlying increasing the permeability of the lymphatic endothelium that allows molecules transported by the lymphatic vessels and explain PBM stimulation of lymphatic drainage and clearance. These findings open new strategies for the stimulation of MLVs functions and non-pharmacological therapy of brain diseases.
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Affiliation(s)
| | - Arkady Abdurashitov
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
- Tomsk State University, 36 Lenin’s Ave., Tomsk 634050, Russian Federation, Russia
| | | | - Maria Klimova
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Ilana Agranovich
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Andrey Terskov
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Alexander Shirokov
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
- Institute of Biochemistry and Physiology of Plants and Microorganisms, Russian Academy of Sciences, Entusiastov Str. 13, Saratov 410049, Russia
| | - Valeria Vinnik
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Anna Kuzmina
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Nikita Lezhnev
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | - Inna Blokhina
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
| | | | - Valery Tuchin
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
- Tomsk State University, 36 Lenin’s Ave., Tomsk 634050, Russian Federation, Russia
- Institute of Precision Mechanics and Control of the Russian Academy of Sciences, 24 Rabochaya Str., Saratov 410028, Russian Federation, Russia
| | - Edik Rafailov
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
- Optoelectronics and Biomedical Photonics Group, Aston University, Birmingham, B4 7ET, UK
| | - Jurgen Kurths
- Saratov State University, Astrakhanskaya Str. 83, Saratov 410012, Russia
- Humboldt University, Newtonstrasse 15, 12489 Berlin, Germany Potsdam, Germany
- Institute for Climate Impact Research, Telegrafenberg A31, 14473 Potsdam, Germany
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23
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Banerjee NS, Moore DW, Wang HK, Broker TR, Chow LT. NVN1000, a novel nitric oxide-releasing compound, inhibits HPV-18 virus production by interfering with E6 and E7 oncoprotein functions. Antiviral Res 2019; 170:104559. [PMID: 31319090 DOI: 10.1016/j.antiviral.2019.104559] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 06/28/2019] [Accepted: 07/11/2019] [Indexed: 11/29/2022]
Affiliation(s)
- N Sanjib Banerjee
- Biochemistry and Molecular Genetics, University of Alabama at Birmingham, AL, 35294-0005, USA.
| | - Dianne W Moore
- Biochemistry and Molecular Genetics, University of Alabama at Birmingham, AL, 35294-0005, USA
| | - Hsu-Kun Wang
- Biochemistry and Molecular Genetics, University of Alabama at Birmingham, AL, 35294-0005, USA
| | - Thomas R Broker
- Biochemistry and Molecular Genetics, University of Alabama at Birmingham, AL, 35294-0005, USA
| | - Louise T Chow
- Biochemistry and Molecular Genetics, University of Alabama at Birmingham, AL, 35294-0005, USA
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24
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Rhen M. Salmonella and Reactive Oxygen Species: A Love-Hate Relationship. J Innate Immun 2019; 11:216-226. [PMID: 30943492 DOI: 10.1159/000496370] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022] Open
Abstract
Salmonella enterica represents an enterobacterial species including numerous serovars that cause infections at, or initiated at, the intestinal epithelium. Many serovars also act as facultative intracellular pathogens with a tropism for phagocytic cells. These bacteria not only survive in phagocytes but also undergo de facto replication therein. Phagocytes, through the activities of phagocyte NADPH-dependent oxidase and inducible nitric oxide synthase, are very proficient in converting molecular oxygen to reactive oxygen (ROS) and nitrogen species (RNS). These compounds represent highly efficient effectors of the innate immune defense. Salmonella is by no means resistant to these effectors, which may stand in contrast to the host niches chosen. To cope with this paradox, these bacteria rely on an array of detoxification and repair systems. Combination these systems allows for a high enough tolerance to ROS and RNS to enable establishment of infection. In addition, salmonella possesses protein factors that have the potential to dampen the infection-associated inflammation, which evidently results in a reduced exposure to ROS and RNS. This review attempts to summarize the activities and strategies by which salmonella tries to cope with ROS and RNS and how the bacterium can make use of these innate defense factors.
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Affiliation(s)
- Mikael Rhen
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden, .,Department of Molecular Biology, Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, Umeå, Sweden, .,Umeå Centre for Microbial Research (UCMR), Umeå University, Umeå, Sweden,
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25
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Piacenza L, Trujillo M, Radi R. Reactive species and pathogen antioxidant networks during phagocytosis. J Exp Med 2019; 216:501-516. [PMID: 30792185 PMCID: PMC6400530 DOI: 10.1084/jem.20181886] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/04/2019] [Accepted: 02/04/2019] [Indexed: 11/23/2022] Open
Abstract
This review discusses the generation of phagosomal cytotoxic reactive species by activated macrophages and neutrophils for the control of intracellular pathogens, and the mechanisms by which microbes combat host-derived oxidants via antioxidant networks that mitigate the redox-dependent control of infection. The generation of phagosomal cytotoxic reactive species (i.e., free radicals and oxidants) by activated macrophages and neutrophils is a crucial process for the control of intracellular pathogens. The chemical nature of these species, the reactions they are involved in, and the subsequent effects are multifaceted and depend on several host- and pathogen-derived factors that influence their production rates and catabolism inside the phagosome. Pathogens rely on an intricate and synergistic antioxidant armamentarium that ensures their own survival by detoxifying reactive species. In this review, we discuss the generation, kinetics, and toxicity of reactive species generated in phagocytes, with a focus on the response of macrophages to internalized pathogens and concentrating on Mycobacterium tuberculosis and Trypanosoma cruzi as examples of bacterial and parasitic infection, respectively. The ability of pathogens to deal with host-derived reactive species largely depends on the competence of their antioxidant networks at the onset of invasion, which in turn can tilt the balance toward pathogen survival, proliferation, and virulence over redox-dependent control of infection.
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Affiliation(s)
- Lucía Piacenza
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.,Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Madia Trujillo
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay.,Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
| | - Rafael Radi
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay .,Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay
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26
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Pezzotti G, Bock RM, McEntire BJ, Adachi T, Marin E, Boschetto F, Zhu W, Mazda O, Bal SB. In vitroantibacterial activity of oxide and non-oxide bioceramics for arthroplastic devices: I.In situtime-lapse Raman spectroscopy. Analyst 2018; 143:3708-3721. [DOI: 10.1039/c8an00233a] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Raman spectroscopy proved why the antibacterial response of non-oxide Si3N4bioceramic is superior to those of alumina-based oxide bioceramics.
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Affiliation(s)
- Giuseppe Pezzotti
- Ceramic Physics Laboratory
- Kyoto Institute of Technology
- Kyoto
- Japan
- Department of Orthopedic Surgery
| | | | | | - Tetsuya Adachi
- Department of Dental Medicine
- Graduate School of Medical Science
- Kyoto Prefectural University of Medicine
- Kyoto 602-8566
- Japan
| | - Elia Marin
- Ceramic Physics Laboratory
- Kyoto Institute of Technology
- Kyoto
- Japan
- Department of Dental Medicine
| | - Francesco Boschetto
- Ceramic Physics Laboratory
- Kyoto Institute of Technology
- Kyoto
- Japan
- Department of Immunology
| | - Wenliang Zhu
- Ceramic Physics Laboratory
- Kyoto Institute of Technology
- Kyoto
- Japan
| | - Osam Mazda
- Department of Immunology
- Kyoto Prefectural University of Medicine
- Kamigyo-ku
- Japan
| | - Sonny B. Bal
- Amedica Corporation
- Salt Lake City
- USA
- Department of Orthopaedic Surgery
- University of Missouri
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27
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Shakdofa MM, Mousa HA, Elseidy AM, Labib AA, Ali MM, Abd-El-All AS. Anti-proliferative activity of newly synthesized Cd(II), Cu(II), Zn(II),Ni(II), Co(II), VO(II), and Mn(II) complexes of 2-((4,9-dimethoxy-5-oxo-5H-furo[3,2-g]chromen-6-yl)methylene) hydrazinecarbothioamide on three human cancer cells. Appl Organomet Chem 2017. [DOI: 10.1002/aoc.3936] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Mohamad M.E. Shakdofa
- Department of Chemistry, Faculty of Science and Arts, Khulais; University of Jeddah; Saudi Arabia
- Inorganic Chemistry Department; National Research Centre; El-bohouth St., P.O. 12622, Dokki Cairo Egypt
| | - Hanan A. Mousa
- Inorganic Chemistry Department; National Research Centre; El-bohouth St., P.O. 12622, Dokki Cairo Egypt
| | - Ahmed M.A. Elseidy
- Inorganic Chemistry Department; National Research Centre; El-bohouth St., P.O. 12622, Dokki Cairo Egypt
- Chemistry Department, Faculty of Science; Al Imam Mohammad Ibn Saud Islamic University (IMSIU); PO Box 5701 Riyadh 11432 Saudi Arabia
| | - Ammar A. Labib
- Inorganic Chemistry Department; National Research Centre; El-bohouth St., P.O. 12622, Dokki Cairo Egypt
| | - Mamdouh M. Ali
- Biochemistry Department, Division of Genetic Engineering and Biotechnology; National Research Center; Cairo Egypt
| | - Amira S. Abd-El-All
- Division of Pharmaceutical and Drug Industries, Department Chemistry of Natural and Microbial products; National Research Centre; Dokki Cairo 12622 Egypt
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Role of Gasotransmitters in Oxidative Stresses, Neuroinflammation, and Neuronal Repair. BIOMED RESEARCH INTERNATIONAL 2017; 2017:1689341. [PMID: 28386548 PMCID: PMC5366188 DOI: 10.1155/2017/1689341] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/12/2017] [Accepted: 02/07/2017] [Indexed: 12/21/2022]
Abstract
To date, three main gasotransmitters, that is, hydrogen sulfide (H2S), carbon monoxide (CO), and nitric oxide (NO), have been discovered to play major bodily physiological roles. These gasotransmitters have multiple functional roles in the body including physiologic and pathologic functions with respect to the cellular or tissue quantities of these gases. Gasotransmitters were originally known to have only detrimental and noxious effects in the body but that notion has much changed with years; vast studies demonstrated that these gasotransmitters are precisely involved in the normal physiological functioning of the body. From neuromodulation, oxidative stress subjugation, and cardiovascular tone regulation to immunomodulation, these gases perform critical roles, which, should they deviate from the norm, can trigger the genesis of a number of neurodegenerative diseases such as Alzheimer's disease (AD) and Parkinson's disease (PD). The purpose of this review is to discuss at great length physical and chemical properties and physiological actions of H2S, NO, and CO as well as shedding light on recently researched molecular targets. We particularly put emphasis on the roles in neuronal inflammation and neurodegeneration and neuronal repair.
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29
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Ayaz G, Halici Z, Albayrak A, Karakus E, Cadirci E. Evaluation of 5-HT7 Receptor Trafficking on In Vivo and In Vitro Model of Lipopolysaccharide (LPS)-Induced Inflammatory Cell Injury in Rats and LPS-Treated A549 Cells. Biochem Genet 2016; 55:34-47. [PMID: 27586707 DOI: 10.1007/s10528-016-9769-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Accepted: 08/16/2016] [Indexed: 12/24/2022]
Abstract
This study aimed to investigate the effects of the 5-HT7 receptor agonist (LP44) and antagonist (SB269970) on LPS-induced in vivo tissue damage and cell culture by molecular methods. This study was conducted in two steps. For in vivo studies, 24 female rats were divided into four groups. Group I: healthy; II (2nd h): LPS 5 mg/kg administered intraperitoneally (i.p.); III (4th h): LPS 5 mg/kg administered i.p.; IV (8th h): LPS 5 mg/kg administered i.p. For in vitro studies, we used the A549 cell line. Groups: I control (healthy) (2-4 h); II LPS: 1 µg/ml E. Coli O55:B5 strain (2-4 h); III agonist (LP44) 10-9 M (2-4 h); IV antagonist (SB269970) 10-9 M (2-4 h); V LPS+agonist 10-9 M (LP44 1 µg/ml) (2-4 h); VI LPS+antagonist 10-9 M (2-4 h). In molecular analyses, we determined increased TNF-α, IL-1β, NF-κB, and 5-HT7 mRNA expressions in rat lung tissues and increased TNF-α, iNOS, and 5-HT7 mRNA expressions in the A549 cell line. In in vitro parameters, LP44 agonist administration-related decrease was observed. Our study showed that lung 5-HT7 receptor expression is increased in LPS-induced endotoxemia. All this data suggest that 5-HT7 receptor overexpression is an important protective mechanism during LPS-induced sepsis-related cell damage.
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Affiliation(s)
- Gulsen Ayaz
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Campus, 25240, Erzurum, Turkey
| | - Zekai Halici
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Campus, 25240, Erzurum, Turkey
| | - Abdulmecit Albayrak
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Campus, 25240, Erzurum, Turkey.
| | - Emre Karakus
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Ataturk University, 25240, Erzurum, Turkey
| | - Elif Cadirci
- Department of Pharmacology, Faculty of Medicine, Ataturk University, Campus, 25240, Erzurum, Turkey
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30
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Abdul-Cader MS, Amarasinghe A, Abdul-Careem MF. Activation of toll-like receptor signaling pathways leading to nitric oxide-mediated antiviral responses. Arch Virol 2016; 161:2075-86. [PMID: 27233799 PMCID: PMC7087267 DOI: 10.1007/s00705-016-2904-x] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2016] [Accepted: 05/17/2016] [Indexed: 02/07/2023]
Abstract
Toll-like receptors (TLRs), well-characterized pattern-recognizing receptors of the innate arm of the immune system, are vital in detecting pathogen-associated molecular patterns (PAMPs). The TLR-PAMP interaction initiates an intracellular signaling cascade, predominantly culminating in upregulation of antiviral components, including inducible nitric oxide synthase (iNOS). After activation, various TLR pathways can promote iNOS production via the myeloid differentiation primary response-88 (MyD-88) adapter protein. Subsequently, iNOS facilitates production of nitric oxide (NO), a highly reactive and potent antiviral molecule that can inhibit replication of RNA and DNA viruses. Furthermore, NO can diffuse freely across cell membranes and elicit antiviral mechanisms in various ways, including direct and indirect damage to viral genomes. This review emphasizes current knowledge of NO-mediated antiviral responses elicited after activation of TLR signaling pathways.
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Affiliation(s)
- Mohamed Sarjoon Abdul-Cader
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada
| | - Aruna Amarasinghe
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada
| | - Mohamed Faizal Abdul-Careem
- Department of Ecosystem and Public Health, Faculty of Veterinary Medicine, University of Calgary, Health Research Innovation Center 2C58, 3330 Hospital Drive NW, Calgary, AB, T2N 4N1, Canada.
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de Freitas LF, Hamblin MR. Proposed Mechanisms of Photobiomodulation or Low-Level Light Therapy. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS : A PUBLICATION OF THE IEEE LASERS AND ELECTRO-OPTICS SOCIETY 2016; 22:7000417. [PMID: 28070154 PMCID: PMC5215870 DOI: 10.1109/jstqe.2016.2561201] [Citation(s) in RCA: 693] [Impact Index Per Article: 86.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Photobiomodulation (PBM) also known as low-level laser (or light) therapy (LLLT), has been known for almost 50 years but still has not gained widespread acceptance, largely due to uncertainty about the molecular, cellular, and tissular mechanisms of action. However, in recent years, much knowledge has been gained in this area, which will be summarized in this review. One of the most important chromophores is cytochrome c oxidase (unit IV in the mitochondrial respiratory chain), which contains both heme and copper centers and absorbs light into the near-infra-red region. The leading hypothesis is that the photons dissociate inhibitory nitric oxide from the enzyme, leading to an increase in electron transport, mitochondrial membrane potential and ATP production. Another hypothesis concerns light-sensitive ion channels that can be activated allowing calcium to enter the cell. After the initial photon absorption events, numerous signaling pathways are activated via reactive oxygen species, cyclic AMP, NO and Ca2+, leading to activation of transcription factors. These transcription factors can lead to increased expression of genes related to protein synthesis, cell migration and proliferation, anti-inflammatory signaling, anti-apoptotic proteins, antioxidant enzymes. Stem cells and progenitor cells appear to be particularly susceptible to LLLT.
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Affiliation(s)
- Lucas Freitas de Freitas
- Programa de Pós-Graduação
Interunidades Bioengenharia, University of São Paulo, São Carlos -
SP, Brazil
- Wellman Center for Photomedicine, Harvard Medical School,
Boston, MA 02114, USA
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Harvard Medical School,
Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston,
MA 02115, USA
- Harvard-MIT Division of Health Sciences and Technology,
Cambridge, MA 02139, USA
- Correspondence: Michael R Hamblin,
; Tel 1-617-726-6182
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Runkel S, Wells HC, Rowley G. Living with Stress: A Lesson from the Enteric Pathogen Salmonella enterica. ADVANCES IN APPLIED MICROBIOLOGY 2016; 83:87-144. [PMID: 23651595 DOI: 10.1016/b978-0-12-407678-5.00003-9] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The ability to sense and respond to the environment is essential for the survival of all living organisms. Bacterial pathogens such as Salmonella enterica are of particular interest due to their ability to sense and adapt to the diverse range of conditions they encounter, both in vivo and in environmental reservoirs. During this cycling from host to non-host environments, Salmonella encounter a variety of environmental insults ranging from temperature fluctuations, nutrient availability and changes in osmolarity, to the presence of antimicrobial peptides and reactive oxygen/nitrogen species. Such fluctuating conditions impact on various areas of bacterial physiology including virulence, growth and antimicrobial resistance. A key component of the success of any bacterial pathogen is the ability to recognize and mount a suitable response to the discrete chemical and physical stresses elicited by the host. Such responses occur through a coordinated and complex programme of gene expression and protein activity, involving a range of transcriptional regulators, sigma factors and two component regulatory systems. This review briefly outlines the various stresses encountered throughout the Salmonella life cycle and the repertoire of regulatory responses with which Salmonella counters. In particular, how these Gram-negative bacteria are able to alleviate disruption in periplasmic envelope homeostasis through a group of stress responses, known collectively as the Envelope Stress Responses, alongside the mechanisms used to overcome nitrosative stress, will be examined in more detail.
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Affiliation(s)
- Sebastian Runkel
- School of Biological Sciences, University of East Anglia, Norwich, UK
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Modulation of Tamoxifen Cytotoxicity by Caffeic Acid Phenethyl Ester in MCF-7 Breast Cancer Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:3017108. [PMID: 26697130 PMCID: PMC4677239 DOI: 10.1155/2016/3017108] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Accepted: 10/27/2015] [Indexed: 12/14/2022]
Abstract
Although Tamoxifen (TAM) is one of the most widely used drugs in managing breast cancer, many women still relapse after long-term therapy. Caffeic acid phenethyl ester (CAPE) is a polyphenolic compound present in many medicinal plants and in propolis. The present study examined the effect of CAPE on TAM cytotoxicity in MCF-7 cells. MCF-7 cells were treated with different concentrations of TAM and/or CAPE for 48 h. This novel combination exerted synergistic cytotoxic effects against MCF-7 cells via induction of apoptotic machinery with activation of caspases and DNA fragmentation, along with downregulation of Bcl-2 and Beclin 1 expression levels. However, the mammalian microtubule-associated protein light chain LC 3-II level was unchanged. Vascular endothelial growth factor level was also decreased, whereas levels of glutathione and nitric oxide were increased. In conclusion, CAPE augmented TAM cytotoxicity via multiple mechanisms, providing a novel therapeutic approach for breast cancer treatment that can overcome resistance and lower toxicity. This effect provides a rationale for further investigation of this combination.
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Lok HC, Sahni S, Richardson V, Kalinowski DS, Kovacevic Z, Lane DJR, Richardson DR. Glutathione S-transferase and MRP1 form an integrated system involved in the storage and transport of dinitrosyl-dithiolato iron complexes in cells. Free Radic Biol Med 2014; 75:14-29. [PMID: 25035074 DOI: 10.1016/j.freeradbiomed.2014.07.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 06/26/2014] [Accepted: 07/01/2014] [Indexed: 12/11/2022]
Abstract
Nitrogen monoxide (NO) is vital for many essential biological processes as a messenger and effector molecule. The physiological importance of NO is the result of its high affinity for iron in the active sites of proteins such as guanylate cyclase. Indeed, NO possesses a rich coordination chemistry with iron and the formation of dinitrosyl-dithiolato iron complexes (DNICs) is well documented. In mammals, NO generated by cytotoxic activated macrophages has been reported to play a role as a cytotoxic effector against tumor cells by binding and releasing intracellular iron. Studies from our laboratory have shown that two proteins traditionally involved in drug resistance, namely multidrug-resistance protein 1 and glutathione S-transferase, play critical roles in intracellular NO transport and storage through their interaction with DNICs (R.N. Watts et al., Proc. Natl. Acad. Sci. USA 103:7670-7675, 2006; H. Lok et al., J. Biol. Chem. 287:607-618, 2012). Notably, DNICs are present at high concentrations in cells and are biologically available. These complexes have a markedly longer half-life than free NO, making them an ideal "common currency" for this messenger molecule. Considering the many critical roles NO plays in health and disease, a better understanding of its intracellular trafficking mechanisms will be vital for the development of new therapeutics.
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Affiliation(s)
- H C Lok
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - S Sahni
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - V Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D S Kalinowski
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - Z Kovacevic
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D J R Lane
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia
| | - D R Richardson
- Molecular Pharmacology and Pathology Program, Department of Pathology and Bosch Institute, University of Sydney, Sydney, NSW 2006, Australia.
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Pathologic role of glial nitric oxide in adult and pediatric neuroinflammatory diseases. Neurosci Biobehav Rev 2014; 45:168-82. [DOI: 10.1016/j.neubiorev.2014.06.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2013] [Revised: 05/28/2014] [Accepted: 06/05/2014] [Indexed: 01/22/2023]
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El-Zahany EA, Ali MM, Drweesh SA, El-Seidy AMA, Abdel-Wahab BF, Youssef NS. Synthesis, Characterization, and Antiproliferative Activity of Cu2+, V(IV)O2+, Co2+, Mn2+, and Ni2+ Complexes with 3-(2-(4-Methoxyphenylcarbamothioyl)Hydrazinyl)-3-OXO-N-(Thiazol-2-yl)Propanamide against Human Breast Adenocarcinoma Cells. PHOSPHORUS SULFUR 2014. [DOI: 10.1080/10426507.2013.855764] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Eman A. El-Zahany
- Inorganic Chemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
| | - Mamdouh M. Ali
- Biochemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
| | - Sayed A. Drweesh
- Inorganic Chemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
| | - Ahmed M. A. El-Seidy
- Inorganic Chemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
| | - Bakr F. Abdel-Wahab
- Applied Organic Chemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
| | - Nabil S. Youssef
- Inorganic Chemistry Department, National Research Centre, P.O. 12622 Dokki, Cairo, Egypt
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Ismail AFM, Ali MM, Ismail LFM. Photodynamic therapy mediated antiproliferative activity of some metal-doped ZnO nanoparticles in human liver adenocarcinoma HepG2 cells under UV irradiation. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2014; 138:99-108. [PMID: 24911277 DOI: 10.1016/j.jphotobiol.2014.04.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/25/2014] [Revised: 03/29/2014] [Accepted: 04/09/2014] [Indexed: 01/10/2023]
Abstract
Photodynamic therapy (PDT) is a promising new modality for the treatment of cancer through generation of reactive oxygen species (ROS). In this work, human liver adenocarcinoma cells HepG2 were treated with zinc oxide nanoparticles (ZnO-NPs), metal-doped-ZnO-NPs: Fe-ZnO-NPs Ag-ZnO-NPs, Pb-ZnO-NPs, and Co-ZnO-NPs, Silica-coated ZnO-NPs, titanium dioxide nanoparticles (TiO2-NPs), titanium dioxide nano-tubes (TiO2-NTs) and ZnO-NPs/TiO2-NTs nanocomposite under UV irradiation. Doxorubicin was used as a standard drug. The results demonstrated that the ZnO-NPs, Fe-ZnO-NPs, Ag-ZnO-NPs, Pb-ZnO-NPs, and Co-ZnO-NPs showed cytotoxicity against HepG2 cells, with the median growth inhibitory concentrations (IC50) 42.60, 37.20, 45.10, 77.20 and 56.50 μg/ml, respectively, as compared to doxorubicin (IC50: 20.10 μg/ml). Treatment of the cancer cells with ZnO-NPs, Fe-ZnO-NPs, Ag-ZnO-NPs, Pb-ZnO-NPs, and Co-ZnO-NPs resulted in a significant increase in the activity of SOD and the levels of H2O2 and NO than those of control, accompanied with a significant decrease in the activity of CAT and GSH-Px. Also, depletion of reduced GSH, total protein and nucleic acids levels was observed. In conclusion, metal-doped ZnO-NPs may induce antiproliferative effect on HepG2 cells under UV-irradiation due to generation of ROS. Therefore, they could be included in modern clinical trials after in vivo more investigations, using photodynamic therapy technique.
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Affiliation(s)
- Amel F M Ismail
- Drug Radiation Research Department, National Center for Radiation Research and Technology, Atomic Energy Authority, Nasr City, Cairo, Egypt.
| | - Mamdouh M Ali
- Biochemistry Department, Division of Genetic Engineering and Biotechnology, National Research Centre, Dokki, Giza, Egypt
| | - Laila F M Ismail
- Chemistry Department, Al-Azhar University, Faculty of Science, Nasr City, Cairo, Egypt
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Lyu LD, Tang BK, Fan XY, Ma H, Zhao GP. Mycobacterial MazG safeguards genetic stability via housecleaning of 5-OH-dCTP. PLoS Pathog 2013; 9:e1003814. [PMID: 24339782 PMCID: PMC3855555 DOI: 10.1371/journal.ppat.1003814] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Accepted: 10/23/2013] [Indexed: 01/05/2023] Open
Abstract
Generation of reactive oxygen species and reactive nitrogen species in phagocytes is an important innate immune response mechanism to eliminate microbial pathogens. It is known that deoxynucleotides (dNTPs), the precursor nucleotides to DNA synthesis, are one group of the significant targets for these oxidants and incorporation of oxidized dNTPs into genomic DNA may cause mutations and even cell death. Here we show that the mycobacterial dNTP pyrophosphohydrolase MazG safeguards the bacilli genome by degrading 5-OH-dCTP, thereby, preventing it from incorporation into DNA. Deletion of the (d)NTP pyrophosphohydrolase-encoding mazG in mycobacteria leads to a mutator phenotype both under oxidative stress and in the stationary phase of growth, resulting in increased CG to TA mutations. Biochemical analyses demonstrate that mycobacterial MazG can efficiently hydrolyze 5-OH-dCTP, an oxidized nucleotide that induces CG to TA mutation upon incorporation by polymerase. Moreover, chemical genetic analyses show that direct incorporation of 5-OH-dCTP into mazG-null mutant strain of Mycobacterium smegmatis (Msm) leads to a dose-dependent mutagenesis phenotype, indicating that 5-OH-dCTP is a natural substrate of mycobacterial MazG. Furthermore, deletion of mazG in Mycobacterium tuberculosis (Mtb) leads to reduced survival in activated macrophages and in the spleen of infected mice. This study not only characterizes the mycobacterial MazG as a novel pyrimidine-specific housecleaning enzyme that prevents CG to TA mutation by degrading 5-OH-dCTP but also reveals a genome-safeguarding mechanism for survival of Mtb in vivo. The cellular nucleotide pool is a significant target for oxidation by reactive oxygen species and reactive nitrogen species. Misincorporation of these oxidized non-canonical nucleotides into DNA is known to cause mutations, and may be related to carcinogenesis, aging and neurodegeneration. Cells have evolved a group of bio-degradation housecleaning enzymes that may specifically eliminate certain non-canonical nucleotide from the nucleotide pool and thus prevent their incorporation into DNA. The most well-characterized housecleaning enzymes are the MutT-like proteins which specifically hydrolyze the oxidized purine nucleotides, such as 8-oxo-dGTP and 2-OH-dATP. Lack of MutT activity in cells leads to significant increase of AT-CG mutation and genetic instability. However, housecleaning enzymes specific for oxidized pyrimidine nucleotides are yet to be identified. Here we show that the dNTP pyrophosphohydrolase MazG from mycobacteria is a 5-OH-dCTP-specific housecleaning enzyme. Deletion of mazG in mycobacteria results in increased CG to TA mutation under oxidative stress and in the stationary phase of growth. Both biochemical and chemical genetic analyses demonstrate that 5-OH-dCTP is a natural substrate of mycobacterial MazG. Furthermore, deletion of mazG in Mtb leads to reduced survival in activated macrophages and in the spleen of infected mice. These results reveal a novel housecleaning pathway for mycobacteria to maintain genetic stability and survival in vivo.
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Affiliation(s)
- Liang-Dong Lyu
- CAS-Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- Department of Microbiology and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
- * E-mail: (LDL); (GPZ)
| | - Bi-Kui Tang
- CAS-Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- Anhui Key Laboratory of Infection and Immunity, Department of Life Science, Bengbu Medical College, Bengbu, China
| | - Xiao-Yong Fan
- Shanghai Public Health Clinical Center Affiliated with Fudan University, Shanghai, China
| | - Hui Ma
- Shanghai Public Health Clinical Center Affiliated with Fudan University, Shanghai, China
| | - Guo-Ping Zhao
- CAS-Key Laboratory of Synthetic Biology, Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
- Department of Microbiology and Li Ka Shing Institute of Health Sciences, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong SAR, China
- Key Laboratory of Medical Molecular Virology affiliated with the Ministry of Education and Health, Shanghai Medical College, Department of Microbiology, School of Life Sciences, Fudan University, Shanghai, China
- Shanghai-MOST Key Laboratory for Health and Disease Genomics, Chinese National Human Genome Center, Shanghai, China
- * E-mail: (LDL); (GPZ)
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Koskenkorva-Frank TS, Weiss G, Koppenol WH, Burckhardt S. The complex interplay of iron metabolism, reactive oxygen species, and reactive nitrogen species: insights into the potential of various iron therapies to induce oxidative and nitrosative stress. Free Radic Biol Med 2013; 65:1174-1194. [PMID: 24036104 DOI: 10.1016/j.freeradbiomed.2013.09.001] [Citation(s) in RCA: 288] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2013] [Revised: 09/05/2013] [Accepted: 09/05/2013] [Indexed: 02/07/2023]
Abstract
Production of minute concentrations of superoxide (O2(*-)) and nitrogen monoxide (nitric oxide, NO*) plays important roles in several aspects of cellular signaling and metabolic regulation. However, in an inflammatory environment, the concentrations of these radicals can drastically increase and the antioxidant defenses may become overwhelmed. Thus, biological damage may occur owing to redox imbalance-a condition called oxidative and/or nitrosative stress. A complex interplay exists between iron metabolism, O2(*-), hydrogen peroxide (H2O2), and NO*. Iron is involved in both the formation and the scavenging of these species. Iron deficiency (anemia) (ID(A)) is associated with oxidative stress, but its role in the induction of nitrosative stress is largely unclear. Moreover, oral as well as intravenous (iv) iron preparations used for the treatment of ID(A) may also induce oxidative and/or nitrosative stress. Oral administration of ferrous salts may lead to high transferrin saturation levels and, thus, formation of non-transferrin-bound iron, a potentially toxic form of iron with a propensity to induce oxidative stress. One of the factors that determine the likelihood of oxidative and nitrosative stress induced upon administration of an iv iron complex is the amount of labile (or weakly-bound) iron present in the complex. Stable dextran-based iron complexes used for iv therapy, although they contain only negligible amounts of labile iron, can induce oxidative and/or nitrosative stress through so far unknown mechanisms. In this review, after summarizing the main features of iron metabolism and its complex interplay with O2(*-), H2O2, NO*, and other more reactive compounds derived from these species, the potential of various iron therapies to induce oxidative and nitrosative stress is discussed and possible underlying mechanisms are proposed. Understanding the mechanisms, by which various iron formulations may induce oxidative and nitrosative stress, will help us develop better tolerated and more efficient therapies for various dysfunctions of iron metabolism.
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Affiliation(s)
- Taija S Koskenkorva-Frank
- Chemical and Preclinical Research and Development, Vifor (International) Ltd., CH-9001 St. Gallen, Switzerland
| | - Günter Weiss
- Department of Internal Medicine VI, Infectious Diseases, Immunology, Rheumatology, Pneumology, Medical University of Innsbruck, Innsbruck, Austria
| | - Willem H Koppenol
- Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland
| | - Susanna Burckhardt
- Chemical and Preclinical Research and Development, Vifor (International) Ltd., CH-9001 St. Gallen, Switzerland; Institute of Inorganic Chemistry, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, Switzerland.
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p53 regulates mesenchymal stem cell-mediated tumor suppression in a tumor microenvironment through immune modulation. Oncogene 2013; 33:3830-8. [PMID: 23975435 DOI: 10.1038/onc.2013.355] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 07/13/2013] [Accepted: 07/24/2013] [Indexed: 01/14/2023]
Abstract
p53 is one of the most studied genes in cancer biology, and mutations in this gene may be predictive for the development of many types of cancer in humans and in animals. However, whether p53 mutations in non-tumor stromal cells can affect tumor development has received very little attention. In this study, we show that B16F0 melanoma cells form much larger tumors in p53-deficient mice than in wild-type mice, indicating a potential role of p53 deficiency in non-tumor cells of the microenvironment. As mesenchymal stem cells (MSCs) are attracted to tumors and form a major component of the tumor microenvironment, we examined the potential role of p53 status in MSCs in tumor development. We found that larger tumors resulted when B16F0 melanoma cells were co-injected with bone marrow MSCs derived from p53-deficient mice rather than MSCs from wild-type mice. Interestingly, this tumor-promoting effect by p53-deficient MSCs was not observed in non-obese diabetic/severe combined immunodeficiency mice, indicating the immune response has a critical role. Indeed, in the presence of inflammatory cytokines, p53-deficient MSCs expressed more inducible nitric oxide synthase (iNOS) and exhibited greater immunosuppressive capacity. Importantly, tumor promotion by p53-deficient MSCs was abolished by administration of S-methylisothiourea, an iNOS inhibitor. Therefore, our data demonstrate that p53 status in tumor stromal cells has a key role in tumor development by modulating immune responses.
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41
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Levansucrase optimization using solid state fermentation and levan biological activities studies. Carbohydr Polym 2013; 96:332-41. [DOI: 10.1016/j.carbpol.2013.03.089] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Revised: 03/21/2013] [Accepted: 03/26/2013] [Indexed: 01/07/2023]
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Gardner PR. Hemoglobin: a nitric-oxide dioxygenase. SCIENTIFICA 2012; 2012:683729. [PMID: 24278729 PMCID: PMC3820574 DOI: 10.6064/2012/683729] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2012] [Accepted: 10/04/2012] [Indexed: 05/09/2023]
Abstract
Members of the hemoglobin superfamily efficiently catalyze nitric-oxide dioxygenation, and when paired with native electron donors, function as NO dioxygenases (NODs). Indeed, the NOD function has emerged as a more common and ancient function than the well-known role in O2 transport-storage. Novel hemoglobins possessing a NOD function continue to be discovered in diverse life forms. Unique hemoglobin structures evolved, in part, for catalysis with different electron donors. The mechanism of NOD catalysis by representative single domain hemoglobins and multidomain flavohemoglobin occurs through a multistep mechanism involving O2 migration to the heme pocket, O2 binding-reduction, NO migration, radical-radical coupling, O-atom rearrangement, nitrate release, and heme iron re-reduction. Unraveling the physiological functions of multiple NODs with varying expression in organisms and the complexity of NO as both a poison and signaling molecule remain grand challenges for the NO field. NOD knockout organisms and cells expressing recombinant NODs are helping to advance our understanding of NO actions in microbial infection, plant senescence, cancer, mitochondrial function, iron metabolism, and tissue O2 homeostasis. NOD inhibitors are being pursued for therapeutic applications as antibiotics and antitumor agents. Transgenic NOD-expressing plants, fish, algae, and microbes are being developed for agriculture, aquaculture, and industry.
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Affiliation(s)
- Paul R. Gardner
- Miami Valley Biotech, 1001 E. 2nd Street, Suite 2445, Dayton, OH 45402, USA
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Rashad AE, Shamroukh AH, Yousif NM, Salama MA, Ali HS, Ali MM, Mahmoud AE, El-Shahat M. New Pyrimidinone and Fused Pyrimidinone Derivatives as Potential Anticancer Chemotherapeutics. Arch Pharm (Weinheim) 2012; 345:729-38. [DOI: 10.1002/ardp.201200119] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2012] [Revised: 04/28/2012] [Accepted: 04/29/2012] [Indexed: 01/13/2023]
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Abd-Elzaher MM, Moustafa SA, Labib AA, Mousa HA, Ali MM, Mahmoud AE. Synthesis, characterization and anticancer studies of ferrocenyl complexes containing thiazole moiety. Appl Organomet Chem 2012. [DOI: 10.1002/aoc.2844] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
| | - Samia A. Moustafa
- Inorganic Chemistry Department; National Research Centre; Dokki; PO 12622; Cairo; Egypt
| | - Ammar A. Labib
- Inorganic Chemistry Department; National Research Centre; Dokki; PO 12622; Cairo; Egypt
| | - Hanan A. Mousa
- Inorganic Chemistry Department; National Research Centre; Dokki; PO 12622; Cairo; Egypt
| | - Mamdouh M. Ali
- Biochemistry Department; National Research Centre; Dokki; PO 12622; Cairo; Egypt
| | - Abeer E. Mahmoud
- Biochemistry Department; National Research Centre; Dokki; PO 12622; Cairo; Egypt
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Muntel J, Hecker M, Becher D. An exclusion list based label-free proteome quantification approach using an LTQ Orbitrap. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:701-709. [PMID: 22328225 DOI: 10.1002/rcm.6147] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RATIONALE Label-based mass spectrometry is a powerful tool for large-scale protein identification and quantification. However, it requires the chemical or metabolic incorporation of the labeled compound(s) which can be difficult to attain, e.g. for non-cultivable organisms or scarce sample, such as biopsies. Therefore, we set out to develop and validate an efficient label-free liquid chromatography/tandem mass spectrometry (LC/MS/MS) workflow based on optimized instrument settings and incremental exclusion lists. METHODS To increase the number of quantified peptides an incremental exclusion list was incorporated along with optimized instrument settings for the used LTQ Orbitrap. As a proof of concept, label-free quantification data from this optimized approach were compared to the results of control measurements without exclusion lists and of an in vivo metabolic labeling GeLC/MS/MS experiment. The data were drawn from Staphylococcus aureus whole cell lysates of non-stressed and nitric oxide (NO)-stressed cells. RESULTS Compared to MS analysis without exclusion lists the new approach resulted in an increased number of identified peptides, enabling label-free quantification of more than 990 S. aureus proteins. With respect to the number of quantified proteins and differences in protein levels between the control and NO-treated samples the results of the new method were consistent with those of the GeLC/MS/MS experiment. CONCLUSIONS The application of exclusion lists and optimized instrument settings in LC/MS/MS analysis significantly enhances the sensitivity and resolution of label-free protein identification and quantification. Therefore, the new workflow is a powerful alternative to label-based quantification methods.
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Affiliation(s)
- Jan Muntel
- Institute for Microbiology, Ernst Moritz Arndt University Greifswald, Friedrich-Ludwig-Jahn-Str. 15, D-17489, Greifswald, Germany
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Sheftel AD, Mason AB, Ponka P. The long history of iron in the Universe and in health and disease. BIOCHIMICA ET BIOPHYSICA ACTA 2012; 1820:161-87. [PMID: 21856378 PMCID: PMC3258305 DOI: 10.1016/j.bbagen.2011.08.002] [Citation(s) in RCA: 134] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 07/19/2011] [Accepted: 08/01/2011] [Indexed: 12/21/2022]
Abstract
BACKGROUND Not long after the Big Bang, iron began to play a central role in the Universe and soon became mired in the tangle of biochemistry that is the prima essentia of life. Since life's addiction to iron transcends the oxygenation of the Earth's atmosphere, living things must be protected from the potentially dangerous mix of iron and oxygen. The human being possesses grams of this potentially toxic transition metal, which is shuttling through his oxygen-rich humor. Since long before the birth of modern medicine, the blood-vibrant red from a massive abundance of hemoglobin iron-has been a focus for health experts. SCOPE OF REVIEW We describe the current understanding of iron metabolism, highlight the many important discoveries that accreted this knowledge, and describe the perils of dysfunctional iron handling. GENERAL SIGNIFICANCE Isaac Newton famously penned, "If I have seen further than others, it is by standing upon the shoulders of giants". We hope that this review will inspire future scientists to develop intellectual pursuits by understanding the research and ideas from many remarkable thinkers of the past. MAJOR CONCLUSIONS The history of iron research is a long, rich story with early beginnings, and is far from being finished. This article is part of a Special Issue entitled Transferrins: Molecular mechanisms of iron transport and disorders.
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Affiliation(s)
- Alex D. Sheftel
- University of Ottawa Heart Institute, 40 Ruskin St., Ottawa, ON K1Y 4W7, Canada
| | - Anne B. Mason
- Department of Biochemistry, College of Medicine, University of Vermont, 89 Beaumont Avenue, Burlington, VT 05405-0068, USA
| | - Prem Ponka
- Lady Davis Institute for Medical Research, Jewish General Hospital, 3755 Côte-Ste.-Catherine Rd., Montréal, QC H3T 1E2, and Departments of Physiology and Medicine, McGill University, Montréal, QC, Canada
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Sarmento-Ribeiro AB, Dourado M, Paiva A, Freitas A, Silva T, Regateiro F, Oliveira CR. Apoptosis Deregulation Influences Chemoresistance to Azaguanine in Human Leukemic Cell Lines. Cancer Invest 2012; 30:331-42. [DOI: 10.3109/07357907.2012.659925] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- A. B. Sarmento-Ribeiro
- Applied Molecular Biology/Biochemistry Institute and Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra,
Coimbra, Portugal,1
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra,
Coimbra, Portugal,2
- Universitaire Clinic of Hematology, Faculty of Medicine, University of Coimbra, Portugal6
| | - M. Dourado
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra,
Coimbra, Portugal,2
- Physiopathology Discipline of Medical Dental Care, Faculty of Medicine, University of Coimbra,
Coimbra, Portugal,3
| | - A. Paiva
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra,
Coimbra, Portugal,2
- Center of Histocompatibility,
Coimbra, Portugal,4
| | - A. Freitas
- Center of Histocompatibility,
Coimbra, Portugal,4
| | - T. Silva
- Hematopathology, Institute of Pathological Anatomy, Faculty of Medicine, University of Coimbra,
Coimbra, Portugal,5
| | - F. Regateiro
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra,
Coimbra, Portugal,2
- Center of Histocompatibility,
Coimbra, Portugal,4
| | - C. R. Oliveira
- Applied Molecular Biology/Biochemistry Institute and Center of Investigation in Environment, Genetics and Oncobiology (CIMAGO), Faculty of Medicine, University of Coimbra,
Coimbra, Portugal,1
- Center for Neuroscience and Cell Biology (CNC), University of Coimbra,
Coimbra, Portugal,2
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Suryo Rahmanto Y, Kalinowski DS, Lane DJR, Lok HC, Richardson V, Richardson DR. Nitrogen monoxide (NO) storage and transport by dinitrosyl-dithiol-iron complexes: long-lived NO that is trafficked by interacting proteins. J Biol Chem 2012; 287:6960-8. [PMID: 22262835 DOI: 10.1074/jbc.r111.329847] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nitrogen monoxide (NO) markedly affects intracellular iron metabolism, and recent studies have shown that molecules traditionally involved in drug resistance, namely GST and MRP1 (multidrug resistance-associated protein 1), are critical molecular players in this process. This is mediated by interaction of these proteins with dinitrosyl-dithiol-iron complexes (Watts, R. N., Hawkins, C., Ponka, P., and Richardson, D. R. (2006) Proc. Natl. Acad. Sci. U.S.A. 103, 7670-7675; Lok, H. C., Suryo Rahmanto, Y., Hawkins, C. L., Kalinowski, D. S., Morrow, C. S., Townsend, A. J., Ponka, P., and Richardson, D. R. (2012) J. Biol. Chem. 287, 607-618). These complexes are bioavailable, have a markedly longer half-life compared with free NO, and form in cells after an interaction between iron, NO, and glutathione. The generation of dinitrosyl-dithiol-iron complexes acts as a common currency for NO transport and storage by MRP1 and GST P1-1, respectively. Understanding the biological trafficking mechanisms involved in the metabolism of NO is vital for elucidating its many roles in cellular signaling and cytotoxicity and for development of new therapeutic targets.
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Affiliation(s)
- Yohan Suryo Rahmanto
- Department of Pathology, University of Sydney, Sydney, New South Wales 2006, Australia
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Hassan GS, Kadry HH, Abou-Seri SM, Ali MM, Mahmoud AEED. Synthesis and in vitro cytotoxic activity of novel pyrazolo[3,4-d]pyrimidines and related pyrazole hydrazones toward breast adenocarcinoma MCF-7 cell line. Bioorg Med Chem 2011; 19:6808-17. [PMID: 22000322 DOI: 10.1016/j.bmc.2011.09.036] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2011] [Revised: 09/12/2011] [Accepted: 09/20/2011] [Indexed: 01/07/2023]
Abstract
New series of pyrazolo[3,4-d]pyrimidines (7a-e and 13a-d) and pyrazole hydrazones 17a-d were synthesized and evaluated for their antiproliferative activity against human breast adenocarcinoma MCF-7 cell line. Most of the tested compounds exploited potent to moderate growth inhibitory activity, in particular compound 7e exhibited superior potency to the reference drug cisplatin (IC(50)=7.60 and 13.29 μM, respectively). The antitumor activity of the new compounds was accompanied by significant increase in the activity of superoxide dismutase with concomitant decrease in the activities of catalase and glutathione peroxidase and reduced glutathione level. Accordingly, the overproduction of hydrogen peroxide, nitric oxide and other free radicals allowed reactive oxygen species (ROS)-mediated tumor cells death, as monitored by reduction in the synthesis of protein and nucleic acids.
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Affiliation(s)
- Ghaneya Sayed Hassan
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Henard CA, Vázquez-Torres A. Nitric oxide and salmonella pathogenesis. Front Microbiol 2011; 2:84. [PMID: 21833325 PMCID: PMC3153045 DOI: 10.3389/fmicb.2011.00084] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 04/08/2011] [Indexed: 12/12/2022] Open
Abstract
Nitric oxide (NO) and its congeners contribute to the innate immune response to Salmonella. This enteric pathogen is exposed to reactive nitrogen species (RNS) in the environment and at different anatomical locations during its infectious cycle in vertebrate hosts. Chemical generation of RNS enhances the gastric barrier to enteropathogenic bacteria, while products of the Salmonella pathogenicity island 1 type III secretion system and Salmonella-associated molecular patterns stimulate transcription of inducible NO synthase (iNOS) by cells of the mononuclear phagocytic cell lineage. The resulting NO, or products that arise from its interactions with oxygen (O2) or iron and low-molecular weight thiols, are preferentially bacteriostatic against Salmonella, while reaction of NO and superoxide (O2−) generates the bactericidal compound peroxynitrite (ONOO−). The anti-Salmonella activity of RNS emanates from the modification of redox active thiols and metal prosthetic groups of key molecular targets of the electron transport chain, central metabolic enzymes, transcription factors, and DNA and DNA-associated proteins. In turn, Salmonella display a plethora of defenses that modulate the delivery of iNOS-containing vesicles to phagosomes, scavenge and detoxify RNS, and repair biomolecules damaged by these toxic species. Traditionally, RNS have been recognized as important mediators of host defense against Salmonella. However, exciting new findings indicate that Salmonella can exploit the RNS produced during the infection to foster virulence. More knowledge of the primary RNS produced in response to Salmonella infection, the bacterial processes affected by these toxic species, and the adaptive bacterial responses that protect Salmonella from nitrosative and oxidative stress associated with NO will increase our understanding of Salmonella pathogenesis. This information may assist in the development of novel therapeutics against this common enteropathogen.
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Affiliation(s)
- Calvin A Henard
- Department of Microbiology, University of Colorado School of Medicine Aurora, CO, USA
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