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Zhao M, Chen J, Chen H, Zhang J, Li D. Aldo-keto reductases 7A subfamily: A mini review. Chem Biol Interact 2024; 391:110896. [PMID: 38301882 DOI: 10.1016/j.cbi.2024.110896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 02/03/2024]
Abstract
Aldo-keto reductase-7A (AKR7A) subfamily belongs to the AKR superfamily and is associated with detoxification of aldehydes and ketones by reducing them to the corresponding alcohols. So far five members of ARK7A subfamily are identified: two human members-AKR7A2 and AKR7A3, two rat members-AKR7A1 and AKR7A4, and one mouse member-AKR7A5, which are implicated in several diseases including neurodegenerative diseases and cancer. AKR7A members share similar crystal structures and protein functional domains, but have different substrate specificity, inducibility and biological functions. This review will summarize the research progress of AKR7A members in substrate specificity, tissue distribution, inducibility, crystal structure and biological function. The significance of AKR7A members in the occurrence and development of diseases will also be discussed.
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Affiliation(s)
- Mengli Zhao
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jiajin Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Hongyu Chen
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, China
| | - Jingdong Zhang
- Department of Medical Oncology, Cancer Hospital of China Medical University, China Medical University, Shenyang, 110001, China
| | - Dan Li
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals, College of Pharmaceutical Sciences, Zhejiang University of Technology, Hangzhou, 310014, China.
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2
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Porto E, De Backer J, Thuy LTT, Kawada N, Hankeln T. Transcriptomics of a cytoglobin knockout mouse: Insights from hepatic stellate cells and brain. J Inorg Biochem 2024; 250:112405. [PMID: 37977965 DOI: 10.1016/j.jinorgbio.2023.112405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 10/10/2023] [Accepted: 10/16/2023] [Indexed: 11/19/2023]
Abstract
The vertebrate respiratory protein cytoglobin (Cygb) is thought to exert multiple cellular functions. Here we studied the phenotypic effects of a Cygb knockout (KO) in mouse on the transcriptome level. RNA sequencing (RNA-Seq) was performed for the first time on sites of major endogenous Cygb expression, i.e. quiescent and activated hepatic stellate cells (HSCs) and two brain regions, hippocampus and hypothalamus. The data recapitulated the up-regulation of Cygb during HSC activation and its expression in the brain. Differential gene expression analyses suggested a role of Cygb in the response to inflammation in HSCs and its involvement in retinoid metabolism, retinoid X receptor (RXR) activation-induced xenobiotics metabolism, and RXR activation-induced lipid metabolism and signaling in activated cells. Unexpectedly, only minor effects of the Cygb KO were detected in the transcriptional profiles in hippocampus and hypothalamus, precluding any enrichment analyses. Furthermore, the transcriptome data pointed at a previously undescribed potential of the Cygb- knockout allele to produce cis-acting effects, necessitating future verification studies.
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Affiliation(s)
- Elena Porto
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis Group, Johannes Gutenberg University Mainz, J. J. Becher-Weg 30A, Mainz D-55128, Germany
| | - Joey De Backer
- Research Group PPES, Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Wilrijk, Antwerp 1610, Belgium
| | - Le Thi Thanh Thuy
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka Metropolitan University, Osaka 545-8585, Japan
| | - Thomas Hankeln
- Institute of Organismic and Molecular Evolution, Molecular Genetics & Genome Analysis Group, Johannes Gutenberg University Mainz, J. J. Becher-Weg 30A, Mainz D-55128, Germany.
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3
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Reeder BJ. Insights into the function of cytoglobin. Biochem Soc Trans 2023; 51:1907-1919. [PMID: 37721133 PMCID: PMC10657185 DOI: 10.1042/bst20230081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/19/2023]
Abstract
Since its discovery in 2001, the function of cytoglobin has remained elusive. Through extensive in vitro and in vivo research, a range of potential physiological and pathological mechanisms has emerged for this multifunctional member of the hemoglobin family. Currently, over 200 research publications have examined different aspects of cytoglobin structure, redox chemistry and potential roles in cell signalling pathways. This research is wide ranging, but common themes have emerged throughout the research. This review examines the current structural, biochemical and in vivo knowledge of cytoglobin published over the past two decades. Radical scavenging, nitric oxide homeostasis, lipid binding and oxidation and the role of an intramolecular disulfide bond on the redox chemistry are examined, together with aspects and roles for Cygb in cancer progression and liver fibrosis.
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Affiliation(s)
- Brandon J Reeder
- School of Life Sciences, University of Essex, Wivenhoe Park, Colchester, Essex, U.K
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4
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Ghasemitarei M, Ghorbi T, Yusupov M, Zhang Y, Zhao T, Shali P, Bogaerts A. Effects of Nitro-Oxidative Stress on Biomolecules: Part 1-Non-Reactive Molecular Dynamics Simulations. Biomolecules 2023; 13:1371. [PMID: 37759771 PMCID: PMC10527456 DOI: 10.3390/biom13091371] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/04/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Plasma medicine, or the biomedical application of cold atmospheric plasma (CAP), is an expanding field within plasma research. CAP has demonstrated remarkable versatility in diverse biological applications, including cancer treatment, wound healing, microorganism inactivation, and skin disease therapy. However, the precise mechanisms underlying the effects of CAP remain incompletely understood. The therapeutic effects of CAP are largely attributed to the generation of reactive oxygen and nitrogen species (RONS), which play a crucial role in the biological responses induced by CAP. Specifically, RONS produced during CAP treatment have the ability to chemically modify cell membranes and membrane proteins, causing nitro-oxidative stress, thereby leading to changes in membrane permeability and disruption of cellular processes. To gain atomic-level insights into these interactions, non-reactive molecular dynamics (MD) simulations have emerged as a valuable tool. These simulations facilitate the examination of larger-scale system dynamics, including protein-protein and protein-membrane interactions. In this comprehensive review, we focus on the applications of non-reactive MD simulations in studying the effects of CAP on cellular components and interactions at the atomic level, providing a detailed overview of the potential of CAP in medicine. We also review the results of other MD studies that are not related to plasma medicine but explore the effects of nitro-oxidative stress on cellular components and are therefore important for a broader understanding of the underlying processes.
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Affiliation(s)
- Maryam Ghasemitarei
- Department of Physics, Sharif University of Technology, Tehran 14588-89694, Iran
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
| | - Tayebeh Ghorbi
- Department of Physics, Sharif University of Technology, Tehran 14588-89694, Iran
| | - Maksudbek Yusupov
- School of Engineering, New Uzbekistan University, Tashkent 100007, Uzbekistan
- School of Engineering, Central Asian University, Tashkent 111221, Uzbekistan
- Laboratory of Thermal Physics of Multiphase Systems, Arifov Institute of Ion-Plasma and Laser Technologies, Academy of Sciences of Uzbekistan, Tashkent 100125, Uzbekistan
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
| | - Yuantao Zhang
- School of Electrical Engineering, Shandong University, Jinan 250061, China
| | - Tong Zhao
- School of Electrical Engineering, Shandong University, Jinan 250061, China
| | - Parisa Shali
- Research Unit Plasma Technology, Department of Applied Physics, Faculty of Engineering and Agriculture, Ghent University, 9000 Ghent, Belgium
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, 2610 Antwerp, Belgium
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5
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Di Rocco G, Bernini F, Battistuzzi G, Ranieri A, Bortolotti CA, Borsari M, Sola M. Hydrogen peroxide induces heme degradation and protein aggregation in human neuroglobin: roles of the disulfide bridge and hydrogen-bonding in the distal heme cavity. FEBS J 2023; 290:148-161. [PMID: 35866372 PMCID: PMC10087938 DOI: 10.1111/febs.16581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 07/05/2022] [Accepted: 07/20/2022] [Indexed: 01/14/2023]
Abstract
In the present study, human neuroglobin (hNgb) was found to undergo H2 O2 -induced breakdown of the heme center at a much slower rate than other globins, namely in the timescale of hours against minutes. We investigated how the rate of the process is affected by the Cys46/Cys55 disulfide bond and the network of non-covalent interactions in the distal heme side involving Tyr44, Lys67, the His64 heme iron axial ligand and the heme propionate-7. The rate is increased by the Tyr44 to Ala and Phe mutations; however the rate is lowered by Lys67 to Ala swapping. The absence of the disulfide bridge slows down the reaction further. Therefore, the disulfide bond-controlled accessibility of the heme site and the residues at position 44 and 67 affect the activation barrier of the reaction. Wild-type and mutated species form β-amyloid aggregates in the presence of H2 O2 producing globular structures. Furthermore, the C46A/C55A, Y44A, Y44F and Y44F/C46A/C55A variants yield potentially harmful fibrils. Finally, the nucleation and growth kinetics for the aggregation of the amyloid structures can be successfully described by the Finke-Watzky model.
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Affiliation(s)
- Giulia Di Rocco
- Department of Life Sciences, University of Modena and Reggio Emilia, Italy
| | - Fabrizio Bernini
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Gianantonio Battistuzzi
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Antonio Ranieri
- Department of Life Sciences, University of Modena and Reggio Emilia, Italy
| | | | - Marco Borsari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
| | - Marco Sola
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, Italy
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6
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Hassanein EHM, Althagafy HS, Atwa AM, Kozman MR, Kotb El-Sayed MI, Soubh AA. Taurine attenuated methotrexate-induced intestinal injury by regulating NF-κB/iNOS and Keap1/Nrf2/HO-1 signals. Life Sci 2022; 311:121180. [PMID: 36370869 DOI: 10.1016/j.lfs.2022.121180] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 10/28/2022] [Accepted: 11/07/2022] [Indexed: 11/11/2022]
Abstract
Methotrexate (MTX) is a well-known and widely used cytotoxic chemotherapeutic agent. However, intestinal mucosa damage is a serious adverse effect of MTX. Taurine (TUR) is a sulfur-containing free β-amino acid with antioxidant and therapeutic value against several diseases. The current study aimed to determine the protective effect of TUR against MTX-induced intestinal injury. Rats were allocated into four groups. The first group received vehicles only. The second group received TUR at a dose of 250 mg/kg i.p. For induction of intestinal injury, the rats in the third group were given MTX once at a dose of 20 mg/kg, i.p. The fourth group received TUR 7 days before and 7 days after MTX, as previously described. TUR significantly attenuated the cytokine release by suppressing NF-κB and iNOS expressions. Moreover, cotreatment with TUR attenuated the increased MDA level while it enhanced the antioxidant GSH and SOD levels mediated by effective downregulation of Keap1 expression, while the expression of Nrf2, HO-1, and cytoglobin were up-regulated. Additionally, TUR mitigated the apoptosis and proliferation indices by decreasing the elevated levels of intestinal PCNA and caspase-3. Finally, TUR potently increased the cytotoxic activity of MTX toward Caco-2, MCF-7, and A549 cancer cells. In conclusion, TUR was a promising agent for relieving MTX-mediated intestinal injury via various antioxidant, anti-inflammatory, and antiapoptotic mechanisms.
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Affiliation(s)
- Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut 71524, Egypt.
| | - Hanan S Althagafy
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Ahmed M Atwa
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Egyptian Russian University, Cairo, Egypt
| | - Magy R Kozman
- Department of Clinical Pharmacology, Faculty of Pharmacy, Misr University for Science and Technology, Cairo, Egypt
| | - Mohamed I Kotb El-Sayed
- Biochemistry and Molecular Biology Department, Faculty of Pharmacy, Helwan University, Ain Helwan, Helwan, Cairo, Egypt
| | - Ayman A Soubh
- Pharmacology and Toxicology Department, Faculty of Pharmacy, Ahram Canadian University, Giza 12566, Egypt
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7
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Overexpression of Neuroglobin Promotes Energy Metabolism and Autophagy Induction in Human Neuroblastoma SH-SY5Y Cells. Cells 2021; 10:cells10123394. [PMID: 34943907 PMCID: PMC8699457 DOI: 10.3390/cells10123394] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 01/18/2023] Open
Abstract
Neuroglobin (NGB) is an O2-binding globin mainly expressed in the central and peripheral nervous systems and cerebrospinal fluid. Previously, it was demonstrated that NGB overexpression protects cells from hypoxia-induced death. To investigate processes promoted by NGB overexpression, we used a cellular model of neuroblastoma stably overexpressing an NGB-FLAG construct. We used a proteomic approach to identify the specific profile following NGB overexpression. To evaluate the role of NGB overexpression in increasing energetic metabolism, we measured oxygen consumption rate (OCR) and the extracellular acidification rate through Seahorse XF technology. The effect on autophagy induction was evaluated by analyzing SQSTM1/p62 and LC3-II expression. Proteomic analysis revealed several differentially regulated proteins, involved in oxidative phosphorylation and integral mitochondrial proteins linked to energy metabolism. The analysis of mitochondrial metabolism demonstrated that NGB overexpression increases mitochondrial ATP production. Indeed, NGB overexpression enhances bioenergetic metabolism, increasing OCR and oxygen consumption. Analysis of autophagy induction revealed an increase of LC3-II together with a significant decrease of SQSTM1/p62, and NGB-LC3-II association during autophagosome formation. These results highlight the active participation of NGB in several cellular processes that can be upregulated in response to NGB overexpression, playing a role in the adaptive response to stress in neuroblastoma cells.
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8
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Keller TCS, Lechauve C, Keller AS, Brooks S, Weiss MJ, Columbus L, Ackerman HC, Cortese-Krott MM, Isakson BE. The role of globins in cardiovascular physiology. Physiol Rev 2021; 102:859-892. [PMID: 34486392 DOI: 10.1152/physrev.00037.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Globin proteins exist in every cell type of the vasculature, from erythrocytes to endothelial cells, vascular smooth muscle cells, and peripheral nerve cells. Many globin subtypes are also expressed in muscle tissues (including cardiac and skeletal muscle), in other organ-specific cell types, and in cells of the central nervous system. The ability of each of these globins to interact with molecular oxygen (O2) and nitric oxide (NO) is preserved across these contexts. Endothelial α-globin is an example of extra-erythrocytic globin expression. Other globins, including myoglobin, cytoglobin, and neuroglobin are observed in other vascular tissues. Myoglobin is observed primarily in skeletal muscle and smooth muscle cells surrounding the aorta or other large arteries. Cytoglobin is found in vascular smooth muscle but can also be expressed in non-vascular cell types, especially in oxidative stress conditions after ischemic insult. Neuroglobin was first observed in neuronal cells, and its expression appears to be restricted mainly to the central and peripheral nervous systems. Brain and central nervous system neurons expressing neuroglobin are positioned close to many arteries within the brain parenchyma and can control smooth muscle contraction and, thus, tissue perfusion and vascular reactivity. Overall, reactions between NO and globin heme-iron contribute to vascular homeostasis by regulating vasodilatory NO signals and scaveging reactive species in cells of the mammalian vascular system. Here, we discuss how globin proteins affect vascular physiology with a focus on NO biology, and offer perspectives for future study of these functions.
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Affiliation(s)
- T C Steven Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Christophe Lechauve
- Department of Hematology, St. Jude's Children's Research Hospital, Memphis, TN, United States
| | - Alexander S Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Steven Brooks
- Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, United States
| | - Mitchell J Weiss
- Department of Hematology, St. Jude's Children's Research Hospital, Memphis, TN, United States
| | - Linda Columbus
- Department of Chemistry, University of Virginia, Charlottesville, VA, United States
| | - Hans C Ackerman
- Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, United States
| | - Miriam M Cortese-Krott
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmunology, and Angiology, Medical Faculty, Heinrich-Heine-University of Düsseldorf, Düsseldorf, Germany.,Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, VA, United States
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9
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Zhang ZR, Yang ZG, Xu YM, Wang ZY, Wen J, Chen BH, Wang P, Wei W, Li Z, Dong WQ. Bioinformatics analysis of differentially expressed proteins in alcoholic fatty liver disease treated with recombinant human cytoglobin. Mol Med Rep 2021; 23:289. [PMID: 33649799 PMCID: PMC7930997 DOI: 10.3892/mmr.2021.11929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Accepted: 06/26/2020] [Indexed: 11/06/2022] Open
Abstract
Cytoglobin (Cygb) is a globin molecule that is ubiquitously expressed in all tissues and has a protective role under oxidative stress. It has also been demonstrated to be effective in the treatment of alcoholic fatty liver disease (AFLD). In order to study the molecular mechanisms underlying its beneficial effects for the treatment of alcoholic liver, two‑dimensional electrophoresis and mass spectrometric analysis were performed on serum and liver tissues from an in vivo rat model of AFLD. A total of 26 differentially expressed proteins were identified in the serum and 20 differentially expressed proteins were identified in liver specimens. Using online bioinformatics tools, it was indicated that these differentially expressed proteins were primarily associated with pathways including binding and uptake of ligands by scavenger receptors, response to corticosteroid, plasma lipoprotein remodeling, regulation of complement cascade, hydrogen peroxide catabolic process, as well as response to nutrient and monosaccharide. The present results suggested that recombinant human Cygb exerts its role in the treatment of AFLD primarily through affecting nutrient metabolism, monocarboxylic acid biosynthesis, regulation of glutathione expression, plasma lipoprotein remodeling and removal of metabolic waste from the blood.
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Affiliation(s)
- Zi-Rong Zhang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zheng-Gen Yang
- Guangzhou Koncen BioScience Co., Ltd., Guangzhou, Guangdong 510530, P.R. China
| | - Yan-Mei Xu
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhe-Yan Wang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Jian Wen
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Bo-Hong Chen
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Ping Wang
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wei Wei
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Zhen Li
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
| | - Wen-Qi Dong
- Department of Biopharmacy, School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
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10
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Fiocchetti M, Cracco P, Montalesi E, Solar Fernandez V, Stuart JA, Marino M. Neuroglobin and mitochondria: The impact on neurodegenerative diseases. Arch Biochem Biophys 2021; 701:108823. [PMID: 33675812 DOI: 10.1016/j.abb.2021.108823] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 02/22/2021] [Accepted: 02/25/2021] [Indexed: 12/12/2022]
Abstract
Dysfunctional mitochondria have severe consequences on cell functions including Reactive Oxygen Specie (ROS) generation, alteration of mitochondrial signaling, Ca2+ buffering, and activation of apoptotic pathway. These dysfunctions are closely linked with degenerative diseases including neurodegeneration. The discovery of neuroglobin (NGB) as an endogenous neuroprotective protein, which effects seem to depend on its mitochondrial localization, could drive new therapeutic strategies against aged-related neurodegenerative diseases. Indeed, high levels of NGB are active against several brain injuries, including neurodegeneration, hypoxia, ischemia, toxicity, and nutrient deprivation opening a new scenario in the comprehension of the relationship between neural pathologies and mitochondrial homeostasis. In this review, we provide the current understanding of the role of mitochondria in neurodegeneration and discuss structural and functional connection between NGB and mitochondria with the purpose of defining a novel mitochondrial-based neuroprotective mechanism(s).
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Affiliation(s)
- Marco Fiocchetti
- Department of Science, University Roma Tre, Viale G. Marconi, 446 -00146, Rome, Italy; Neuroendocrinology, Metabolism, and Neuropharmacology Unit, IRCCS Santa Lucia Foundation, 00143, Rome, Italy
| | - Patrizio Cracco
- Department of Science, University Roma Tre, Viale G. Marconi, 446 -00146, Rome, Italy
| | - Emiliano Montalesi
- Department of Science, University Roma Tre, Viale G. Marconi, 446 -00146, Rome, Italy
| | | | - Jeffrey A Stuart
- Department of Biological Science, Faculty of Mathematics and Science, Brock University, St. Catharines L2S 3A1, Ontario, Canada
| | - Maria Marino
- Department of Science, University Roma Tre, Viale G. Marconi, 446 -00146, Rome, Italy; Neuroendocrinology, Metabolism, and Neuropharmacology Unit, IRCCS Santa Lucia Foundation, 00143, Rome, Italy.
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11
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Giordano D, Corti P, Coppola D, Altomonte G, Xue J, Russo R, di Prisco G, Verde C. Regulation of globin expression in Antarctic fish under thermal and hypoxic stress. Mar Genomics 2020; 57:100831. [PMID: 33250437 DOI: 10.1016/j.margen.2020.100831] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/18/2020] [Accepted: 11/18/2020] [Indexed: 01/27/2023]
Abstract
In the freezing waters of the Southern Ocean, Antarctic teleost fish, the Notothenioidei, have developed unique adaptations to cope with cold, including, at the extreme, the loss of hemoglobin in icefish. As a consequence, icefish are thought to be the most vulnerable of the Antarctic fish species to ongoing ocean warming. Some icefish also fail to express myoglobin but all appear to retain neuroglobin, cytoglobin-1, cytoglobin-2, and globin-X. Despite the lack of the inducible heat shock response, Antarctic notothenioid fish are endowed with physiological plasticity to partially compensate for environmental changes, as shown by numerous physiological and genomic/transcriptomic studies over the last decade. However, the regulatory mechanisms that determine temperature/oxygen-induced changes in gene expression remain largely unexplored in these species. Proteins such as globins are susceptible to environmental changes in oxygen levels and temperature, thus playing important roles in mediating Antarctic fish adaptations. In this study, we sequenced the full-length transcripts of myoglobin, neuroglobin, cytoglobin-1, cytoglobin-2, and globin-X from the Antarctic red-blooded notothenioid Trematomus bernacchii and the white-blooded icefish Chionodraco hamatus and evaluated transcripts levels after exposure to high temperature and low oxygen levels. Basal levels of globins are similar in the two species and both stressors affect the expression of Antarctic fish globins in brain, retina and gills. Temperature up-regulates globin expression more effectively in white-blooded than in red-blooded fish while hypoxia strongly up-regulates globins in red-blooded fish, particularly in the gills. These results suggest globins function as regulators of temperature and hypoxia tolerance. This study provides the first insights into globin transcriptional changes in Antarctic fish.
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Affiliation(s)
- Daniela Giordano
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy; Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn (SZN), Villa Comunale, Napoli 80121, Italy.
| | - Paola Corti
- Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA; Division of Cardiology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Daniela Coppola
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy; Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn (SZN), Villa Comunale, Napoli 80121, Italy
| | - Giovanna Altomonte
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy; Department of Science, Roma Tre University, Viale Guglielmo Marconi 446, Roma I-00146, Italy
| | - Jianmin Xue
- Heart, Lung, Blood, and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Roberta Russo
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy
| | - Guido di Prisco
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy
| | - Cinzia Verde
- Institute of Biosciences and BioResources (IBBR), CNR, Via Pietro Castellino 111, Napoli 80131, Italy; Department of Marine Biotechnology, Stazione Zoologica Anton Dohrn (SZN), Villa Comunale, Napoli 80121, Italy
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12
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Lim M, Brown HM, Kind KL, Thompson JG, Dunning KR. Hemoglobin: potential roles in the oocyte and early embryo†. Biol Reprod 2020; 101:262-270. [PMID: 31058953 DOI: 10.1093/biolre/ioz078] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 04/02/2019] [Accepted: 05/04/2019] [Indexed: 12/13/2022] Open
Abstract
Hemoglobin (Hb) is commonly known for its capacity to bind and transport oxygen and carbon dioxide in erythroid cells. However, it plays additional roles in cellular function and health due to its capacity to bind other gases including nitric oxide. Further, Hb acts as a potent antioxidant, quenching reactive oxygen species. Despite its potential roles in cellular function, the preponderance of Hb research remains focused on its role in oxygen regulation. There is increasing evidence that Hb expression is more ubiquitous than previously thought, with Hb and its variants found in a myriad of cell types ranging from macrophages to spermatozoa. The majority of nonerythroid cell types that express Hb are situated within hypoxic environments, suggesting Hb may play a role in hypoxia-inducible factor-regulated gene expression by controlling the level of oxygen available or as an adaptation to low oxygen providing a mechanism to store oxygen. Oocyte maturation and preimplantation embryo development occur within the low oxygen environments of the antral follicle and oviduct/uterus, respectively. Interestingly, Hb was recently found in human cumulus and granulosa cells and murine cumulus-oocyte complexes and preimplantation embryos. Here, we consolidate and analyze the research generated todate on Hb expression in nonerythroid cells with a particular focus on reproductive cell types. We outline future directions of this research to elucidate the role of Hb during oocyte maturation and preimplantation embryo development and finally, we explore the potential clinical applications and benefits of Hb supplementation during the in vitro culture of gametes and embryos.
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Affiliation(s)
- Megan Lim
- Robinson Research Institute, Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics.,Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, South Australia, Australia
| | - Hannah M Brown
- South Australian Health and Medical Research Institute, Adelaide, South Australia, Australia
| | - Karen L Kind
- School of Animal and Veterinary Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - Jeremy G Thompson
- Robinson Research Institute, Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics.,Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, South Australia, Australia
| | - Kylie R Dunning
- Robinson Research Institute, Adelaide Medical School, The University of Adelaide, Adelaide, South Australia, Australia.,Australian Research Council Centre of Excellence for Nanoscale BioPhotonics.,Institute for Photonics and Advanced Sensing, The University of Adelaide, Adelaide, South Australia, Australia
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13
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Randi EB, Vervaet B, Tsachaki M, Porto E, Vermeylen S, Lindenmeyer MT, Thuy LTT, Cohen CD, Devuyst O, Kistler AD, Szabo C, Kawada N, Hankeln T, Odermatt A, Dewilde S, Wenger RH, Hoogewijs D. The Antioxidative Role of Cytoglobin in Podocytes: Implications for a Role in Chronic Kidney Disease. Antioxid Redox Signal 2020; 32:1155-1171. [PMID: 31910047 DOI: 10.1089/ars.2019.7868] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Aims: Cytoglobin (CYGB) is a member of the mammalian globin family of respiratory proteins. Despite extensive research efforts, its physiological role remains largely unknown, but potential functions include reactive oxygen species (ROS) detoxification and signaling. Accumulating evidence suggests that ROS play a crucial role in podocyte detachment and apoptosis during diabetic kidney disease. This study aimed to explore the potential antioxidative renal role of CYGB both in vivo and in vitro. Results: Using a Cygb-deficient mouse model, we demonstrate a Cygb-dependent reduction in renal function, coinciding with a reduced number of podocytes. To specifically assess the putative antioxidative function of CYGB in podocytes, we first confirmed high endogenous CYGB expression levels in two human podocyte cell lines and subsequently generated short hairpin RNA-mediated stable CYGB knockdown podocyte models. CYGB-deficient podocytes displayed increased cell death and accumulation of ROS as assessed by 2'7'-dichlorodihydrofluorescein diacetate assays and the redox-sensitive probe roGFP2-Orp1. CYGB-deficient cells also exhibited an impaired cellular bioenergetic status. Consistently, analysis of the CYGB-dependent transcriptome identified dysregulation of multiple genes involved in redox balance, apoptosis, as well as in chronic kidney disease (CKD). Finally, genome-wide association studies and expression studies in nephropathy biopsies indicate an association of CYGB with CKD. Innovation: This study demonstrates a podocyte-related renal role of Cygb, confirms abundant CYGB expression in human podocyte cell lines, and describes for the first time an association between CYGB and CKD. Conclusion: Our results provide evidence for an antioxidative role of CYGB in podocytes.
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Affiliation(s)
- Elisa B Randi
- Department of Medicine/Physiology, University of Fribourg, Fribourg, Switzerland.,Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland
| | - Benjamin Vervaet
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Maria Tsachaki
- National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland.,Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Elena Porto
- Institute of Organismal and Molecular Evolutionary Biology, University of Mainz, Mainz, Germany
| | - Stijn Vermeylen
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Maja T Lindenmeyer
- Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland.,Nephrological Center, Medical Clinic and Policlinic IV, University of Munich, Munich, Germany
| | - Le Thi Thanh Thuy
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Clemens D Cohen
- Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland.,Nephrological Center, Medical Clinic and Policlinic IV, University of Munich, Munich, Germany
| | - Olivier Devuyst
- Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland
| | - Andreas D Kistler
- Division of Nephrology, Kantonsspital Frauenfeld, Frauenfeld, Switzerland
| | - Csaba Szabo
- Chair of Pharmacology, Faculty of Science and Medicine, University of Fribourg, Fribourg, Switzerland
| | - Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University, Osaka, Japan
| | - Thomas Hankeln
- Institute of Organismal and Molecular Evolutionary Biology, University of Mainz, Mainz, Germany
| | - Alex Odermatt
- National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland.,Division of Molecular and Systems Toxicology, Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
| | - Sylvia Dewilde
- Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Roland H Wenger
- Institute of Physiology and Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland
| | - David Hoogewijs
- Department of Medicine/Physiology, University of Fribourg, Fribourg, Switzerland.,National Centre of Competence in Research (NCCR) "Kidney.CH", Zurich, Switzerland
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14
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Ming L, Qiao X, Yi L, Siren D, He J, Hai L, Guo F, Xiao Y, Ji R. Camel milk modulates ethanol-induced changes in the gut microbiome and transcriptome in a mouse model of acute alcoholic liver disease. J Dairy Sci 2020; 103:3937-3949. [PMID: 32171514 DOI: 10.3168/jds.2019-17247] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 01/13/2020] [Indexed: 12/15/2022]
Abstract
Morbidity and mortality as a result of liver disease are major problems around the world, especially from alcoholic liver disease (ALD), which is characterized by hepatic inflammation and intestinal microbial imbalance. In this study, we investigated the hepatoprotective effects of camel milk (CM) in a mouse model of acute ALD and the underlying mechanism at the gut microbiota and transcriptome level. Male Institute of Cancer Research mice (n = 24; Beijing Weitong Lihua Experimental Animal Technology Co. Ltd., China) were divided into 3 groups: normal diet (NC); normal diet, then ethanol (ET); and normal diet and camel milk (CM), then ethanol (ET+CM). Analysis of serum biochemical indexes and histology revealed a reduction in hepatic inflammation in the ET+CM group. Sequencing of 16S rRNA showed that CM modulated the microbial communities, with an increased proportion of Lactobacillus and reduced Bacteroides, Alistipes, and Rikenellaceae RC9 gut group. Comparative hepatic transcriptome analysis revealed 315 differentially expressed genes (DEG) in the ET+CM and ET groups (150 upregulated and 165 downregulated). Enrichment analysis revealed that CM downregulated the expression of inflammation-related (ILB and CXCL1) genes in the IL-17 and tumor necrosis factor (TNF-α) pathways. We conclude that CM modulates liver inflammation and alleviates the intestinal microbial disorder caused by acute alcohol injury, indicating the potential of dietary CM in protection against alcohol-induced liver injury.
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Affiliation(s)
- Liang Ming
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - XiangYu Qiao
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Li Yi
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Dalai Siren
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; Camel Research Institute of Inner Mongolia, Alashan 737300, China
| | - Jing He
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Le Hai
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Fucheng Guo
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Yuchen Xiao
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China
| | - Rimutu Ji
- Key Laboratory of Dairy Biotechnology and Bioengineering, Ministry of Education, College of Food Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; Camel Research Institute of Inner Mongolia, Alashan 737300, China.
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15
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Blanco S, Peralta S, Morales ME, Martínez-Lara E, Pedrajas JR, Castán H, Peinado MÁ, Ruiz MA. Hyaluronate Nanoparticles as a Delivery System to Carry Neuroglobin to the Brain after Stroke. Pharmaceutics 2020; 12:pharmaceutics12010040. [PMID: 31947806 PMCID: PMC7023086 DOI: 10.3390/pharmaceutics12010040] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 12/10/2019] [Accepted: 01/01/2020] [Indexed: 01/27/2023] Open
Abstract
Therapies against stroke can restore the blood supply but cannot prevent the ischemic damage nor stimulate the recovery of the infarcted zone. The neuroglobin protein plays an important role in the neuro-regeneration process after stroke; however, the method for its effective systemic application has not been identified yet, as neuroglobin is unable to pass through the blood-brain barrier. Previously, we developed different types of sodium hyaluronate nanoparticles, which successfully cross the blood-brain barrier after stroke. In this work, these nanoparticles have been used to carry neuroglobin through the bloodstream to the nerve cells in rats submitted to stroke. We have biosynthesized rat-recombinant neuroglobin and determined the formulation of sodium hyaluronate nanoparticles loaded with neuroglobin, as well as its size and ζ-potential, encapsulation efficiently, in vitro release, and its kinetic of liberation. The results show that the formulation achieved is highly compatible with pharmaceutical use and may act as a delivery system to transport neuroglobin within the blood. We have found that this formulation injected intravenously immediately after stroke reached the damaged cerebral parenchyma at early stages (2 h). Neuroglobin colocalizes with its nanocarriers inside the nerve cells and remains after 24 h of reperfusion. In conclusion, the systemic administration of neuroglobin linked to nanoparticles is a potential neuroprotective drug-delivery strategy after stroke episodes.
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Affiliation(s)
- Santos Blanco
- Department of Experimental Biology, University of Jaén, Building B3, Campus de Las Lagunillas s/n, 23071 Jaén, Spain; (S.B.); (E.M.-L.); (J.R.P.)
| | - Sebastián Peralta
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain; (S.P.); (M.E.M.); (H.C.)
| | - María Encarnación Morales
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain; (S.P.); (M.E.M.); (H.C.)
| | - Esther Martínez-Lara
- Department of Experimental Biology, University of Jaén, Building B3, Campus de Las Lagunillas s/n, 23071 Jaén, Spain; (S.B.); (E.M.-L.); (J.R.P.)
| | - José Rafael Pedrajas
- Department of Experimental Biology, University of Jaén, Building B3, Campus de Las Lagunillas s/n, 23071 Jaén, Spain; (S.B.); (E.M.-L.); (J.R.P.)
| | - Herminia Castán
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain; (S.P.); (M.E.M.); (H.C.)
| | - María Ángeles Peinado
- Department of Experimental Biology, University of Jaén, Building B3, Campus de Las Lagunillas s/n, 23071 Jaén, Spain; (S.B.); (E.M.-L.); (J.R.P.)
- Correspondence: (M.Á.P.); (M.A.R.)
| | - María Adolfina Ruiz
- Department of Pharmacy and Pharmaceutical Technology, School of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain; (S.P.); (M.E.M.); (H.C.)
- Correspondence: (M.Á.P.); (M.A.R.)
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16
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de Souza JS, Laureano-Melo R, Herai RH, da Conceição RR, Oliveira KC, da Silva IDCG, Dias-da-Silva MR, Romano RM, Romano MA, Maciel RMDB, Chiamolera MI, Giannocco G. Maternal glyphosate-based herbicide exposure alters antioxidant-related genes in the brain and serum metabolites of male rat offspring. Neurotoxicology 2019; 74:121-131. [PMID: 31226268 DOI: 10.1016/j.neuro.2019.06.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Revised: 05/31/2019] [Accepted: 06/14/2019] [Indexed: 01/09/2023]
Abstract
In response to the rapid development of genetically engineered glyphosate-tolerant crops, the use of glyphosate-based herbicides (GBHs), in agriculture, has increased substantially. Currently, it is estimated that 747 million kg of GBHs are applied per year. Although several epidemiological studies have demonstrated that there are health risks associated with GBH exposure, the effects these chemicals have on the oxidative and inflammatory response in the brain are still unclear. In fact, alterations in these processes could contribute to the development of neurological diseases, such as Alzheimer's disease and autism spectrum disorders. The present study exposed pregnant rats to GBH and evaluated changes in the expression of genes related to oxidnte defense and inflammation response and monitored the serum metabolome in the adult male offspring. Pregnant Wistar rats were administered distilled water or Roundup®, at either 5 and 50 mg/kg/day, (p.o.) from gestational day (GD) 18 to postnatal day (PND) 5. There was a significant increase in the gene expression levels of Neuroglobin (Ngb - oxygen storage and tissue protection) (105%, p = 0.031), Glutathione Peroxidase 1 (Gpx1 - oxidative stress) (95%, p = 0.005), Prostaglandin-Endoperoxidase Synthase 1 (Ptgs1 - inflammation) (109%, p = 0.033) and Hypoxia inducible factor 1 subunit alpha (Hif1α - oxygen sensor) (73%, p = 0.017), in the cerebellum of PND90 rats perinatally exposed to 50 mg GBH/kg/day. Moreover, both GBH-exposed groups displayed a significant decrease in the expression of Catalase (Cat - oxidative stress) (49%, p = 0.003; and 31% p = 0.050, respectively) expression, in the cortex. Serum metabolites analyses, from the same animals of each group, demonstrated that there were significant changes in the concentrations of lysophosphatidylcholine and phosphatidylcholine, which have been associated with neurodegenerative diseases. The results of the present study suggest GBH exposure during pregnancy alters the expression of genes associated with oxidant defense, inflammation and lipid metabolism. It is plausible that maternal GBH exposure could have lasting neuronal effects on the offspring later in life.
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Affiliation(s)
- Janaina Sena de Souza
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil.
| | - Roberto Laureano-Melo
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | - Roberto Hirochi Herai
- Pontifícia Universidade Católica do Paraná, School of Medicine, Graduate Program in Health Sciences (PUCPR/PPGCS), Curitiba, Paraná, 80215-901, Brazil; Instituto Lico Kaesemodel (ILK), Curitiba, Paraná, 80240-000, Brazil
| | - Rodrigo Rodrigues da Conceição
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | - Kelen Carneiro Oliveira
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | | | - Magnus Régios Dias-da-Silva
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | - Renata Marino Romano
- Universidade Estadual do Centro-Oeste, Departamento de Farmácia, Guarapuava, Paraná, Brazil
| | - Marco Aurélio Romano
- Universidade Estadual do Centro-Oeste, Departamento de Farmácia, Guarapuava, Paraná, Brazil
| | - Rui Monteiro de Barros Maciel
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | - Maria Izabel Chiamolera
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil
| | - Gisele Giannocco
- Universidade Federal de São Paulo, UNIFESP/EPM, Departamento de Medicina, Disciplina de Endocrinologia Clínica, São Paulo, São Paulo, 04039-032, Brazil; Universidade Federal de São Paulo, Departamento de Ciências Biológicas, Diadema, São Paulo, 09972-270, Brazil.
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17
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Connecting the Dots in the Neuroglobin-Protein Interaction Network of an Unstressed and Ferroptotic Cell Death Neuroblastoma Model. Cells 2019; 8:cells8080873. [PMID: 31405213 PMCID: PMC6721670 DOI: 10.3390/cells8080873] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 08/03/2019] [Accepted: 08/07/2019] [Indexed: 12/12/2022] Open
Abstract
Neuroglobin is a heme protein of which increased levels provide neuroprotection against amyloid proteinopathy and hemorrhagic damage. These cellular stressors involve the promotion of ferroptosis—an iron-dependent, lipid peroxide-accreting form of cell death. Hence, we questioned whether neuroglobin could oppose ferroptosis initiation. We detected human neuroglobin (hNgb)-EGFP-expressing SH-SY5Y cells to be significantly more resistant to ferroptosis induction, identifying 0.68-fold less cell death. To elucidate the underlying pathways, this study investigated hNgb-protein interactions with a Co-IP-MS/MS approach both under a physiological and a ferroptotic condition. hNgb binds to proteins of the cellular iron metabolism (e.g., RPL15 and PCBP3) in an unstressed condition and shows an elevated binding ratio towards cell death-linked proteins, such as HNRNPA3, FAM120A, and ABRAXAS2, under ferroptotic stress. Our data also reveal a constitutive interaction between hNgb and the longevity-associated heterodimer XRCC5/XRCC6. Disentangling the involvement of hNgb and its binding partners in cellular processes, using Ingenuity Pathway Analysis, resulted in the integration of hNgb in the ubiquitination pathway, mTOR signaling, 14-3-3-mediated signaling, and the glycolysis cascade. We also detected a previously unknown strong link with motor neuropathies. Hence, this study contributes to the elucidation of neuroglobin’s involvement in cellular mechanisms that provide neuroprotection and the upkeep of homeostasis.
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18
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Fiocchetti M, Fernandez VS, Montalesi E, Marino M. Neuroglobin: A Novel Player in the Oxidative Stress Response of Cancer Cells. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:6315034. [PMID: 31354909 PMCID: PMC6636438 DOI: 10.1155/2019/6315034] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 06/11/2019] [Indexed: 12/18/2022]
Abstract
Reactive oxygen species (ROS) result from intracellular aerobic metabolism and/or extracellular stimuli. Although endogenous antioxidant systems exquisitely balance ROS production, an excess of ROS production, commonly found in diverse human degenerative pathologies including cancer, gives rise to the oxidative stress. Increased oxidative stress in cancer is related to the sustained proliferation and metabolism of cancer cells. However, cancer cells show an intrinsic higher antioxidant capacity with respect to the normal counterpart as well as an ability to cope with oxidative stress-induced cell death by establishing mechanisms of adaptation, which define a selective advantage against the adverse oxidative stress environment. The identification of survival factors and adaptive pathways, set up by cancer cells against oxidative stress, provides multiple targets for the therapeutic intervention against cancer. Neuroglobin (NGB), a globin primarily described in neurons as an oxidative stress sensor and cytoprotective factor against redox imbalance, has been recently recognized as a novel tumor-associated protein. In this review, the involvement of NGB in the cancer cell adaptation and resistance to oxidative stress will be discussed highlighting the globin role in the regulation of both the stress-induced apoptotic pathway and antioxidant systems activated by cancer cells.
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Affiliation(s)
- Marco Fiocchetti
- Department of Science, University Roma Tre, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | | | - Emiliano Montalesi
- Department of Science, University Roma Tre, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
| | - Maria Marino
- Department of Science, University Roma Tre, Viale Guglielmo Marconi 446, I-00146 Roma, Italy
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19
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da Conceição RR, de Souza JS, de Oliveira KC, Romano RM, de Barros Maciel RM, Dias-da-Silva MR, Romano MA, Chiamolera MI, Giannocco G. Evaluation of neuroglobin and cytoglobin expression in adult rats exposed to silver nanoparticles during prepubescence. Metab Brain Dis 2019; 34:705-713. [PMID: 30701417 DOI: 10.1007/s11011-019-0386-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Accepted: 01/20/2019] [Indexed: 02/06/2023]
Abstract
Silver nanoparticles (AgNPs) are clusters of silver atoms with diameters that range from 1 to 100 nm. Due to the various shapes and large surface areas, AgNPs have been employed in the food and textile industries and medical fields. Therefore, because of the widespread use of these compounds, the aim of this study was to evaluate the effect of AgNP exposure on the gene and protein expression levels of Neuroglobin (Ngb) and Cytoglobin (Cygb), in the rat cortex, hippocampus and cerebellum. Post-natal day (PND) 21 male Wistar rats were randomly divided into three groups. One group received 15 μg/kg body weight of AgNP by gavage another group received 30 μg/kg and the control group that received saline, from PND23 to PND58. On PND102 the animals were euthanized and the cortex, hippocampus and cerebellum were isolated and evaluated for gene and protein expression levels of Nbg and Cygb. The results demonstrated that the 30 μg/kg AgNP group displayed increased gene and protein expression of Cygb in the cortex. In the Hippocampus, AgNP exposure did not modulate gene or protein expression levels of Ngb and Cygb. In cerebellum the Ngb gene and protein expression was increased with both doses of AgNP. AgNP exposure during prepubescence can modulate the gene and protein expression levels of Ngb and Cygb in adulthood. Furthermore, the observed modulation was specific to the cerebellum, and cortex, and was dose dependent.
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Affiliation(s)
- Rodrigo Rodrigues da Conceição
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil.
| | - Janaina Sena de Souza
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Kelen Carneiro de Oliveira
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Renata Marino Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, da Conceição RR, Rua Simeao Camargo Varela de Sa, 03, Parana, 85040-080, Brazil
| | - Rui Monteiro de Barros Maciel
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Magnus Régios Dias-da-Silva
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Marco Aurélio Romano
- Laboratory of Reproductive Toxicology, Department of Pharmacy, State University of Centro-Oeste, da Conceição RR, Rua Simeao Camargo Varela de Sa, 03, Parana, 85040-080, Brazil
| | - Maria Izabel Chiamolera
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
| | - Gisele Giannocco
- Laboratório de Endocrinologia Molecular e Translacional, Departamento de Medicina, Disciplina de Endocrinologia Clínica, Universidade Federal de São Paulo (UNIFESP), Rua Pedro de Toledo 669, Vila Clementino, São Paulo, SP, 04039032, Brazil
- Departamento de Ciências Biológicas, Universidade Federal de São Paulo, Diadema, SP, Brazil
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20
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Smith HL, Pavasovic A, Surm JM, Phillips MJ, Prentis PJ. Evidence for a Large Expansion and Subfunctionalization of Globin Genes in Sea Anemones. Genome Biol Evol 2018; 10:1892-1901. [PMID: 29947797 PMCID: PMC6077788 DOI: 10.1093/gbe/evy128] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2018] [Indexed: 02/07/2023] Open
Abstract
The globin gene superfamily has been well-characterized in vertebrates, however, there has been limited research in early-diverging lineages, such as phylum Cnidaria. This study aimed to identify globin genes in multiple cnidarian lineages, and use bioinformatic approaches to characterize the evolution, structure, and expression of these genes. Phylogenetic analyses and in silico protein predictions showed that all cnidarians have undergone an expansion of globin genes, which likely have a hexacoordinate protein structure. Our protein modeling has also revealed the possibility of a single pentacoordinate globin lineage in anthozoan species. Some cnidarian globin genes displayed tissue and development specific expression with very few orthologous genes similarly expressed across species. Our phylogenetic analyses also revealed that eumetazoan globin genes form a polyphyletic relationship with vertebrate globin genes. Overall, our analyses suggest that a Ngb-like and GbX-like gene were most likely present in the globin gene repertoire for the last common ancestor of eumetazoans. The identification of a large-scale expansion and subfunctionalization of globin genes in actiniarians provides an excellent starting point to further our understanding of the evolution and function of the globin gene superfamily in early-diverging lineages.
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Affiliation(s)
- Hayden L Smith
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Ana Pavasovic
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Joachim M Surm
- School of Biomedical Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Matthew J Phillips
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, Queensland, Australia
| | - Peter J Prentis
- School of Earth, Environmental and Biological Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.,Institute for Future Environments, Queensland University of Technology, Brisbane, Queensland, Australia
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21
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Maglione AV, Taranto P, Hamermesz B, Souza JS, Cafarchio EM, Ogihara CA, Maciel RMB, Giannocco G, Sato MA. Impact of swimming exercise on inflammation in medullary areas of sympathetic outflow control in spontaneously hypertensive rats. Metab Brain Dis 2018; 33:1649-1660. [PMID: 29946957 DOI: 10.1007/s11011-018-0273-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 06/19/2018] [Indexed: 02/07/2023]
Abstract
Exercise reduces sympathetic activity (SA), arterial pressure and heart rate in spontaneously hypertensive rats (SHR). Exercise increases oxidative stress (OS) and inflammation is implicated in the generation of reactive oxygen species (ROS) and progression of hypertension. To unravel these effects of exercise and considering that SA is driven by medullary areas, we hypothesized that swimming exercise (SW) affects the gene expression (g.e.) of proteins involved in inflammation and OS in the commissural Nucleus of the Solitary Tract (cNTS) and Rostral ventrolateral medulla (RVLM), which control the sympathetic outflow in SHR. We used male SHR and Wistar rats (14-16wks-old) which were maintained sedentary (SED) or submitted to SW (1 h/day, 5 days/wk./6wks). The g.e. of cycloxygenase-2 (COX-2), interleukin 6 (IL-6), interleukin 10 (IL-10), AT-1 receptor (AT-1r), neuroglobin (Ngb) and cytoglobin (Ctb) in cNTS and RVLM was carried out by qPCR. We observed that COX-2 g.e. increased in SW-SHR in cNTS and RVLM compared to SED-SHR. The IL-6 g.e. reduced in RVLM in SW-SHR, whereas IL-10 g.e. increased in SW-SHR in comparison to SED-SHR. The AT-1r g.e. decreased in SW-SHR in cNTS and RVLM compared to SED-SHR. The Ngb and Ctb g.e. in cNTS neurons increased in SHR and Wistar rats submitted to SW compared to SED, but only Ctb g.e. increased in RVLM in SW-SHR and Wistar in comparison to SED. Therefore, the SW altered the g.e. in cNTS and RVLM for reducing the inflammation and ROS formation, which is increased particularly in SHR, consequently decreasing the OS.
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Affiliation(s)
- Andrea V Maglione
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil
| | - Patrícia Taranto
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil
| | - Bruno Hamermesz
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil
| | - Janaina S Souza
- Department of Medicine, Federal Univesity of Sao Paulo, Sao Paulo, SP, Brazil
| | - Eduardo M Cafarchio
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil
| | - Cristiana A Ogihara
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil
| | - Rui M B Maciel
- Department of Medicine, Federal Univesity of Sao Paulo, Sao Paulo, SP, Brazil
| | - Gisele Giannocco
- Department of Medicine, Federal Univesity of Sao Paulo, Sao Paulo, SP, Brazil
| | - Monica A Sato
- Department of Morphology and Physiology, Faculdade de Medicina do ABC, 2000 Lauro Gomes Ave., Vila Sacadura Cabral, Santo Andre, SP, 09060-870, Brazil.
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22
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De Backer J, Razzokov J, Hammerschmid D, Mensch C, Hafideddine Z, Kumar N, van Raemdonck G, Yusupov M, Van Doorslaer S, Johannessen C, Sobott F, Bogaerts A, Dewilde S. The effect of reactive oxygen and nitrogen species on the structure of cytoglobin: A potential tumor suppressor. Redox Biol 2018; 19:1-10. [PMID: 30081385 PMCID: PMC6084017 DOI: 10.1016/j.redox.2018.07.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/15/2018] [Accepted: 07/22/2018] [Indexed: 12/12/2022] Open
Abstract
Many current anti-cancer therapies rely on increasing the intracellular reactive oxygen and nitrogen species (RONS) contents with the aim to induce irreparable damage, which subsequently results in tumor cell death. A novel tool in cancer therapy is the use of cold atmospheric plasma (CAP), which has been found to be very effective in the treatment of many different cancer cell types in vitro as well as in vivo, mainly through the vast generation of RONS. One of the key determinants of the cell's fate will be the interaction of RONS, generated by CAP, with important proteins, i.e. redox-regulatory proteins. One such protein is cytoglobin (CYGB), a recently discovered globin proposed to be involved in the protection of the cell against oxidative stress. In this study, the effect of plasma-produced RONS on CYGB was investigated through the treatment of CYGB with CAP for different treatment times. Spectroscopic analysis of CYGB showed that although chemical modifications occur, its secondary structure remains intact. Mass spectrometry experiments identified these modifications as oxidations of mainly sulfur-containing and aromatic amino acids. With longer treatment time, the treatment was also found to induce nitration of the heme. Furthermore, the two surface-exposed cysteine residues of CYGB were oxidized upon treatment, leading to the formation of intermolecular disulfide bridges, and potentially also intramolecular disulfide bridges. In addition, molecular dynamics and docking simulations confirmed, and further show, that the formation of an intramolecular disulfide bond, due to oxidative conditions, affects the CYGB 3D structure, thereby opening the access to the heme group, through gate functioning of His117. Altogether, the results obtained in this study (1) show that plasma-produced RONS can extensively oxidize proteins and (2) that the oxidation status of two redox-active cysteines lead to different conformations of CYGB.
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Affiliation(s)
- Joey De Backer
- Research Group PPES, Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium.
| | - Jamoliddin Razzokov
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Dietmar Hammerschmid
- Research Group PPES, Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium; Biomolecular & Analytical Mass Spectrometry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Carl Mensch
- Research Group Molecular Spectroscopy, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Zainab Hafideddine
- Research Group PPES, Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium; The Laboratory of Biophysics and Biomedical Physics, Department of Physics, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Naresh Kumar
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Geert van Raemdonck
- Center for Proteomics, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Maksudbek Yusupov
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Sabine Van Doorslaer
- The Laboratory of Biophysics and Biomedical Physics, Department of Physics, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Christian Johannessen
- Research Group Molecular Spectroscopy, Department of Chemistry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium
| | - Frank Sobott
- Biomolecular & Analytical Mass Spectrometry, University of Antwerp, Groenenborgerlaan 171, B-2020 Antwerp, Belgium; Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, UK; School of Molecular and Cellular Biology, University of Leeds, Leeds, UK
| | - Annemie Bogaerts
- Research Group PLASMANT, Department of Chemistry, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium
| | - Sylvia Dewilde
- Research Group PPES, Department of Biomedical Sciences, University of Antwerp, Universiteitsplein 1, Wilrijk, 1610 Antwerp, Belgium.
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23
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Van Acker ZP, Luyckx E, Dewilde S. Neuroglobin Expression in the Brain: a Story of Tissue Homeostasis Preservation. Mol Neurobiol 2018; 56:2101-2122. [DOI: 10.1007/s12035-018-1212-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Accepted: 06/26/2018] [Indexed: 12/19/2022]
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24
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Arcidiacono P, Webb CM, Brooke MA, Zhou H, Delaney PJ, Ng KE, Blaydon DC, Tinker A, Kelsell DP, Chikh A. p63 is a key regulator of iRHOM2 signalling in the keratinocyte stress response. Nat Commun 2018; 9:1021. [PMID: 29523849 PMCID: PMC5844915 DOI: 10.1038/s41467-018-03470-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 02/14/2018] [Indexed: 02/06/2023] Open
Abstract
Hyperproliferative keratinocytes induced by trauma, hyperkeratosis and/or inflammation display molecular signatures similar to those of palmoplantar epidermis. Inherited gain-of-function mutations in RHBDF2 (encoding iRHOM2) are associated with a hyperproliferative palmoplantar keratoderma and squamous oesophageal cancer syndrome (termed TOC). In contrast, genetic ablation of rhbdf2 in mice leads to a thinning of the mammalian footpad, and reduces keratinocyte hyperproliferation and migration. Here, we report that iRHOM2 is a novel target gene of p63 and that both p63 and iRHOM2 differentially regulate cellular stress-associated signalling pathways in normal and hyperproliferative keratinocytes. We demonstrate that p63-iRHOM2 regulates cell survival and response to oxidative stress via modulation of SURVIVIN and Cytoglobin, respectively. Furthermore, the antioxidant compound Sulforaphane downregulates p63-iRHOM2 expression, leading to reduced proliferation, inflammation, survival and ROS production. These findings elucidate a novel p63-associated pathway that identifies iRHOM2 modulation as a potential therapeutic target to treat hyperproliferative skin disease and neoplasia.
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Affiliation(s)
- Paola Arcidiacono
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Catherine M Webb
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Matthew A Brooke
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Huiqing Zhou
- Department of Human Genetics, Nijmegen Centre for Molecular Life Sciences, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands
- Department of Molecular Developmental Biology, Radboud University, Nijmegen, The Netherlands
| | - Paul J Delaney
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Keat-Eng Ng
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Diana C Blaydon
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK
| | - Andrew Tinker
- The Heart Centre, William Harvey Research Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, Charterhouse Square, London, EC1M 6BQ, UK
| | - David P Kelsell
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK.
| | - Anissa Chikh
- Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 2AT, UK.
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25
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Bellei M, Bortolotti CA, Di Rocco G, Borsari M, Lancellotti L, Ranieri A, Sola M, Battistuzzi G. The influence of the Cys46/Cys55 disulfide bond on the redox and spectroscopic properties of human neuroglobin. J Inorg Biochem 2018; 178:70-86. [DOI: 10.1016/j.jinorgbio.2017.10.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Revised: 09/21/2017] [Accepted: 10/09/2017] [Indexed: 12/21/2022]
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26
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Fisetin as a caloric restriction mimetic protects rat brain against aging induced oxidative stress, apoptosis and neurodegeneration. Life Sci 2018; 193:171-179. [DOI: 10.1016/j.lfs.2017.11.004] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 10/30/2017] [Accepted: 11/06/2017] [Indexed: 01/09/2023]
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27
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Cytoprotective effects of transgenic neuroglobin overexpression in an acute and chronic mouse model of ischemic heart disease. Heart Vessels 2017; 33:80-88. [PMID: 29098407 DOI: 10.1007/s00380-017-1065-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Accepted: 10/13/2017] [Indexed: 01/01/2023]
Abstract
Neuroglobin (NGB) is an oxygen-binding protein that is mainly expressed in nervous tissues where it is considered to be neuroprotective during ischemic brain injury. Interestingly, transgenic mice overexpressing NGB reveal cytoprotective effects on tissues lacking endogenous NGB, which might indicate a therapeutic role for NGB in a broad range of ischemic conditions. In the present study, we investigated the effect of NGB overexpression on survival as well as on the size and occurrence of myocardial infarctions (MI) in a mouse model of acute MI (AMI) and a model of advanced atherosclerosis (ApoE -/- Fbn1 C1039G+/- mice), in which coronary plaques and MI develop in mice being fed a Western-type diet. Overexpression of NGB significantly enhanced post-AMI survival and reduced MI size by 14% 1 week after AMI. Gene expression analysis of the infarction border showed reduction of tissue hypoxia and attenuation of hypoxia-induced inflammatory pathways, which might be responsible for these beneficial effects. In contrast, NGB overexpression did not affect survival or occurrence of MI in the atherosclerotic mice although the incidence of coronary plaques was significantly reduced. In conclusion, NGB proved to act cytoprotectively during MI in the acute setting while this effect was less pronounced in the atherosclerosis model.
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28
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Doğan A, Demirci S, Kıratlı B, Şahin F. Cytoglobin: a potential marker for adipogenic differentiation in preadipocytes in vitro. Cytotechnology 2017; 69:157-165. [PMID: 27928650 PMCID: PMC5264631 DOI: 10.1007/s10616-016-0047-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 11/22/2016] [Indexed: 01/12/2023] Open
Abstract
Obesity, mainly characterized by the excess fat storage, is a global health problem resulting in serious morbidity and mortality. Identification of molecular mechanisms in adipogenic differentiation pathway might lead to development of new strategies for diagnosis, prevention and therapy of obesity and associated diseases. Discovery of new genes and proteins in the differentiation pathway could help to understand the key specific regulators of the adipogenesis. Cytoglobin (Cygb), identified as a new globin family member protein, is expressed in various tissues. Although its interaction with oxygen and nitric oxide indicates the potential role in antioxidant pathways, the exact role remains unclear. In the current study, expression level of Cygb was determined in proliferating and differentiating 3T3-F442A cells by gene expression and protein expression analysis. Results revealed that Cygb expression up-regulated in differentiated cells in parallel with adipogenic differentiation markers; PPARγ, CEBPα and FABP4 expressions. Besides, Cygb overexpression in preadipocytes contributed to the adipogenic differentiation as verified by detection of higher lipid droplets and increased PPARγ, CEBPα and FABP4 expressions with respect to control cells. These findings will shed light on the unknown roles of Cygb in adipogenesis and obesity.
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Affiliation(s)
- Ayşegül Doğan
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi Cad. 26 Agustos Yerlesimi, Atasehir, 34755, Istanbul, Turkey
- CDBL, National Cancer Instıtute, NIH, Frederick, MD, USA
| | - Selami Demirci
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi Cad. 26 Agustos Yerlesimi, Atasehir, 34755, Istanbul, Turkey.
- National Heart, Lung, and Blood Institute (NHLBI), NIH, Bethesda, MD, USA.
| | - Binnur Kıratlı
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi Cad. 26 Agustos Yerlesimi, Atasehir, 34755, Istanbul, Turkey
| | - Fikrettin Şahin
- Department of Genetics and Bioengineering, Faculty of Engineering and Architecture, Yeditepe University, Kayisdagi Cad. 26 Agustos Yerlesimi, Atasehir, 34755, Istanbul, Turkey
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29
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Wen J, Wu Y, Wei W, Li Z, Wang P, Zhu S, Dong W. Protective effects of recombinant human cytoglobin against chronic alcohol-induced liver disease in vivo and in vitro. Sci Rep 2017; 7:41647. [PMID: 28128325 PMCID: PMC5269723 DOI: 10.1038/srep41647] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 12/20/2016] [Indexed: 02/07/2023] Open
Abstract
Alcoholic liver disease (ALD) is an important worldwide public health issue with no satisfying treatment available since now. Here we explore the effects of recombinant human cytoglobin (rhCygb) on chronic alcohol-induced liver injury and the underlying mechanisms. In vivo studies showed that rhCygb was able to ameliorate alcohol-induced liver injury, significantly reversed increased serum index (ALT, AST, TG, TC and LDL-C) and decreased serum HDL-C. Histopathology observation of the liver of rats treated with rhCygb confirmed the biochemical data. Furthermore, rhCygb significantly inhibited Kupffer cells (KCs) proliferation and TNF-α expression in LPS-induced KCs. rhCygb also inhibited LPS-induced NADPH oxidase activity and ROS, NO and O2•- generation. These results collectively indicate that rhCygb exert the protective effect on chronic alcohol-induced liver injury through suppression of KC activation and oxidative stress. In view of its anti-oxidative stress and anti-inflammatory features, rhCygb might be a promising candidate for development as a therapeutic agent against ALD.
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Affiliation(s)
- Jian Wen
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China.,Department of Hematology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi Zhuang Autonomous Region 541002, P.R. China
| | - Yongbin Wu
- Department of Clinical Laboratory, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi Zhuang Autonomous Region 541002, P.R. China
| | - Wei Wei
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China
| | - Zhen Li
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China
| | - Ping Wang
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China
| | - Shiwei Zhu
- Department of Hematology, Nanxishan Hospital of Guangxi Zhuang Autonomous Region, Guilin, Guangxi Zhuang Autonomous Region 541002, P.R. China
| | - Wenqi Dong
- School of Laboratory Medicine and Biotechnology, Southern Medical University, Guangzhou, Guangdong Province 510515, P.R. China
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30
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Ascenzi P, di Masi A, Leboffe L, Fiocchetti M, Nuzzo MT, Brunori M, Marino M. Neuroglobin: From structure to function in health and disease. Mol Aspects Med 2016; 52:1-48. [DOI: 10.1016/j.mam.2016.10.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 10/27/2016] [Accepted: 10/27/2016] [Indexed: 01/01/2023]
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31
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Li X, Zou S, Li Z, Cai G, Chen B, Wang P, Dong W. The identification of human aldo-keto reductase AKR7A2 as a novel cytoglobin-binding partner. Cell Mol Biol Lett 2016; 21:25. [PMID: 28536627 PMCID: PMC5415844 DOI: 10.1186/s11658-016-0026-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 03/14/2016] [Indexed: 12/14/2022] Open
Abstract
Cytoglobin (CYGB), a member of the globin family, is thought to protect cells from reactive oxygen and nitrogen species and deal with hypoxic conditions and oxidative stress. However, its molecular mechanisms of action are not clearly understood. Through immunoprecipitation combined with a two-dimensional electrophoresis–mass spectrometry assay, we identified a CYGB interactor: aldo-keto reductase family 7 member A2 (AKR7A2). The interaction was further confirmed using yeast two-hybrid and co-immunoprecipitation assays. Our results show that AKR7A2 physically interacts with CYGB.
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Affiliation(s)
- Xin Li
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Shanshan Zou
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Zhen Li
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Gaotai Cai
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Bohong Chen
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Ping Wang
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
| | - Wenqi Dong
- Department of Biopharmaceutics, School of Laboratory Medicine and Biotechnology, Southern Medical University, 1838 North Guangzhou Avenue, Guangzhou, 510515 China
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32
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Shepherd AI, Wilkerson DP, Fulford J, Winyard PG, Benjamin N, Shore AC, Gilchrist M. Effect of nitrate supplementation on hepatic blood flow and glucose homeostasis: a double-blind, placebo-controlled, randomized control trial. Am J Physiol Gastrointest Liver Physiol 2016; 311:G356-64. [PMID: 27418682 PMCID: PMC5076007 DOI: 10.1152/ajpgi.00203.2016] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/11/2016] [Indexed: 01/31/2023]
Abstract
Nitric oxide alters gastric blood flow, improves vascular function, and mediates glucose uptake within the intestines and skeletal muscle. Dietary nitrate, acting as a source of nitric oxide, appears to be a potential low-cost therapy that may help maintain glucose homeostasis. In a randomized, double-blind, placebo-controlled crossover study, 31 young and older adult participants had a standardized breakfast, supplemented with either nitrate-rich beetroot juice (11.91 mmol nitrate) or nitrate-depleted beetroot juice as placebo (0.01 mmol nitrate). MRI was used to assess apparent diffusion coefficient (ADC), portal vein flux, and velocity. Plasma glucose, incretin, and C-peptide concentrations and blood pressure were assessed. Outcome variables were measured at baseline and hourly for 3 h. Compared with a placebo, beetroot juice resulted in a significant elevation in plasma nitrate and plasma nitrite concentration. No differences were seen for the young or older adult cohorts between placebo and beetroot juice for ADC, or portal vein flux. There was an interaction effect in the young adults between visits for portal vein velocity. Nitrate supplementation did not reduce plasma glucose, active GLP-1, total GLP-1, or plasma C-peptide concentrations for the young or older adult cohorts. Despite a significant elevation in plasma nitrite concentration following an acute dose of (11.91 mmol) nitrate, there was no effect on hepatic blood flow, plasma glucose, C-peptide, or incretin concentration in healthy adults.
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Affiliation(s)
- Anthony I. Shepherd
- 1College of Life and Environmental Sciences, Sport and Health Sciences, University of Exeter, Devon, United Kingdom; ,2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom; ,4Department of Sport and Exercise Science, Portsmouth, United Kingdom
| | - Daryl P. Wilkerson
- 1College of Life and Environmental Sciences, Sport and Health Sciences, University of Exeter, Devon, United Kingdom;
| | - Jon Fulford
- 2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom;
| | - Paul G. Winyard
- 2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom;
| | - Nigel Benjamin
- 2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom; ,3Torbay Hospital, Heart and Lung Unit, Torquay, Devon, United Kingdom; and
| | - Angela C. Shore
- 2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom;
| | - Mark Gilchrist
- 2University of Exeter Medical School and NIHR Exeter Clinical Research Facility, Royal Devon and Exeter Hospital, Exeter, Devon, United Kingdom;
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O'Farrell NJ, Feighery R, Picardo SL, Lynam-Lennon N, Biniecka M, McGarrigle SA, Phelan JJ, MacCarthy F, O'Toole D, Fox EJ, Ravi N, Reynolds JV, O'Sullivan J. Changes in mitochondrial stability during the progression of the Barrett's esophagus disease sequence. BMC Cancer 2016; 16:497. [PMID: 27431913 PMCID: PMC4950724 DOI: 10.1186/s12885-016-2544-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 07/11/2016] [Indexed: 01/10/2023] Open
Abstract
Background Barrett’s esophagus follows the classic step-wise progression of metaplasia-dysplasia-adenocarcinoma. While Barrett’s esophagus is a leading known risk factor for esophageal adenocarcinoma, the pathogenesis of this disease sequence is poorly understood. Mitochondria are highly susceptible to mutations due to high levels of reactive oxygen species (ROS) coupled with low levels of DNA repair. The timing and levels of mitochondria instability and dysfunction across the Barrett’s disease progression is under studied. Methods Using an in-vitro model representing the Barrett’s esophagus disease sequence of normal squamous epithelium (HET1A), metaplasia (QH), dysplasia (Go), and esophageal adenocarcinoma (OE33), random mitochondrial mutations, deletions and surrogate markers of mitochondrial function were assessed. In-vivo and ex-vivo tissues were also assessed for instability profiles. Results Barrett’s metaplastic cells demonstrated increased levels of ROS (p < 0.005) and increased levels of random mitochondrial mutations (p < 0.05) compared with all other stages of the Barrett’s disease sequence in-vitro. Using patient in-vivo samples, Barrett’s metaplasia tissue demonstrated significantly increased levels of random mitochondrial deletions (p = 0.043) compared with esophageal adenocarcinoma tissue, along with increased expression of cytoglobin (CYGB) (p < 0.05), a gene linked to oxidative stress, compared with all other points across the disease sequence. Using ex-vivo Barrett’s metaplastic and matched normal patient tissue explants, higher levels of cytochrome c (p = 0.003), SMAC/Diablo (p = 0.008) and four inflammatory cytokines (all p values <0.05) were secreted from Barrett’s metaplastic tissue compared with matched normal squamous epithelium. Conclusions We have demonstrated that increased mitochondrial instability and markers of cellular and mitochondrial stress are early events in the Barrett’s disease sequence.
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Affiliation(s)
- N J O'Farrell
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - R Feighery
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - S L Picardo
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - N Lynam-Lennon
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - M Biniecka
- Education and Research Centre, St. Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - S A McGarrigle
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - J J Phelan
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - F MacCarthy
- Trinity Translational Medicine Institute, Department of Clinical Medicine, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - D O'Toole
- Trinity Translational Medicine Institute, Department of Clinical Medicine, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - E J Fox
- Department of Pathology, University of Washington, Seattle, WA, 98195, USA
| | - N Ravi
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - J V Reynolds
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland
| | - J O'Sullivan
- Trinity Translational Medicine Institute, Department of Surgery, Trinity College Dublin, St. James's Hospital, Dublin 8, Ireland.
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Trashin S, de Jong M, Luyckx E, Dewilde S, De Wael K. Electrochemical Evidence for Neuroglobin Activity on NO at Physiological Concentrations. J Biol Chem 2016; 291:18959-66. [PMID: 27402851 DOI: 10.1074/jbc.m116.730176] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Indexed: 11/06/2022] Open
Abstract
The true function of neuroglobin (Ngb) and, particularly, human Ngb (NGB) has been under debate since its discovery 15 years ago. It has been expected to play a role in oxygen binding/supply, but a variety of other functions have been put forward, including NO dioxygenase activity. However, in vitro studies that could unravel these potential roles have been hampered by the lack of an Ngb-specific reductase. In this work, we used electrochemical measurements to investigate the role of an intermittent internal disulfide bridge in determining NO oxidation kinetics at physiological NO concentrations. The use of a polarized electrode to efficiently interconvert the ferric (Fe(3+)) and ferrous (Fe(2+)) forms of an immobilized NGB showed that the disulfide bridge both defines the kinetics of NO dioxygenase activity and regulates appearance of the free ferrous deoxy-NGB, which is the redox active form of the protein in contrast to oxy-NGB. Our studies further identified a role for the distal histidine, interacting with the hexacoordinated iron atom of the heme, in oxidation kinetics. These findings may be relevant in vivo, for example, in blocking apoptosis by reduction of ferric cytochrome c, and gentle tuning of NO concentration in the tissues.
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Affiliation(s)
| | | | - Evi Luyckx
- Biomedical Sciences, University of Antwerp, 2010 Antwerp, Belgium
| | - Sylvia Dewilde
- Biomedical Sciences, University of Antwerp, 2010 Antwerp, Belgium
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Reuss S, Wystub S, Disque-Kaiser U, Hankeln T, Burmester T. Distribution of Cytoglobin in the Mouse Brain. Front Neuroanat 2016; 10:47. [PMID: 27199679 PMCID: PMC4847482 DOI: 10.3389/fnana.2016.00047] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 04/11/2016] [Indexed: 01/07/2023] Open
Abstract
Cytoglobin (Cygb) is a vertebrate globin with so far poorly defined function. It is expressed in the fibroblast cell-lineage but has also been found in neurons. Here we provide, using immunohistochemistry, a detailed study on the distribution of Cygb in the mouse brain. While Cygb is a cytoplasmic protein in active cells of the supportive tissue, in neurons it is located in the cytoplasm and the nucleus. We found the expression of Cygb in all brain regions, although only a fraction of the neurons was Cygb-positive. Signals were of different intensity ranging from faint to very intense. Telencephalic neurons in all laminae of the cerebral cortex (CCo), in the olfactory bulb (in particular periglomerular cells), in the hippocampal formation (strongly stained pyramidal cells with long processes), basal ganglia (scattered multipolar neurons in the dorsal striatum, dorsal and ventral pallidum (VP)), and in the amygdala (neurons with unlabeled processes) were labeled by the antibody. In the diencephalon, we observed Cygb-positive neurons of moderate intensity in various nuclei of the dorsal thalamus, in the hypothalamus, metathalamus (geniculate nuclei), epithalamus with strong labeling of habenular nucleus neurons and no labeling of pineal cells, and in the ventral thalamus. Tegmental neurons stood out by strongly stained somata with long processes in, e.g., the laterodorsal nucleus. In the tectum, faintly labeled neurons and fibers were detected in the superior colliculus (SC). The cerebellum exhibited unlabeled Purkinje-neurons but signs of strong afferent cortical innervation. Neurons in the gray matter of the spinal cord showed moderate immunofluorescence. Peripheral ganglia were not labeled by the antibody. The Meynert-fascicle and the olfactory and optic nerves/tracts were the only Cygb-immunoreactive (Cygb-IR) fiber systems. Notably, we found a remarkable level of colocalization of Cygb and neuronal nitric oxide (NO)-synthase in neurons, which supports a functional association.
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Affiliation(s)
- Stefan Reuss
- Department of Nuclear Medicine, University Medical Center, Johannes Gutenberg-University Mainz, Germany
| | - Sylvia Wystub
- Institute of Molecular Genetics, Johannes Gutenberg-University Mainz, Germany
| | - Ursula Disque-Kaiser
- Department of Anatomy and Cell Biology, University Medical Center, Johannes Gutenberg-University Mainz, Germany
| | - Thomas Hankeln
- Institute of Molecular Genetics, Johannes Gutenberg-University Mainz, Germany
| | - Thorsten Burmester
- Institute of Zoology and Zoological Museum, University of Hamburg Hamburg, Germany
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The Effect of rhCygb on CCl4-Induced Hepatic Fibrogenesis in Rat. Sci Rep 2016; 6:23508. [PMID: 27006085 PMCID: PMC4804332 DOI: 10.1038/srep23508] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 03/08/2016] [Indexed: 12/22/2022] Open
Abstract
This study aims to investigate whether the use of recombinant human cytoglobin (rhCygb) impact on hepatic fibrogenesis caused by CCl4. SD (n = 150) rats were randomly divided into three groups of normal, CCl4 model and rhCygb groups. After model establishment, rats in rhCygb groups were administered daily with rhCygb (2 mg/kg, s.c.). Histological lesions were staged according to metavir. Serum parameters including ALT, AST, HA, LN, Col III and Col IV were determined. The liver proteins were separated by 2-DE and identified. As a result, the stage of hepatic damage and liver fibrosis in rhCygb groups were significantly milder than that in CCl4 model groups. Meanwhile, rhCygb dramatically reversed serum levels of ALT and AST, and also markedly decreased the liver fibrosis markers levels of LN, HA, Col III and Col IV. In 2-DE, 33 proteins among three groups with the same changing tendency in normal and rhCygb treated groups compared with CCl4 model group were identified. GO analysis showed that several identified proteins involved in oxidative stress pathway. The study provides new insights and data for administration of rhCygb reversing CCl4-induced liver fibrosis suggesting that rhCygb might be used in the treatment of liver fibrosis.
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Kawada N. Cytoglobin as a Marker of Hepatic Stellate Cell-derived Myofibroblasts. Front Physiol 2015; 6:329. [PMID: 26617531 PMCID: PMC4643130 DOI: 10.3389/fphys.2015.00329] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 10/30/2015] [Indexed: 12/13/2022] Open
Abstract
Myofibroblasts play important roles in inflammation, fibrosis and tumorigenesis in chronically inflamed liver. Liver myofibroblasts originate from hepatic stellate cells, portal fibroblasts or mesothelial cells, and they are localized in and around fibrotic septum and portal tracts. Liver myofibroblasts are the source of extracellular matrix materials, including type I collagen and multiple fibrogenic growth factors, such as transforming growth factor-β and vascular endothelial growth factor. Although a detailed characterization of the function of individual myofibroblasts has not been conducted, owing to the lack of appropriate cell markers, recent lineage-tracing technology has revealed the limited contribution of myofibroblasts that are derived from portal fibroblasts to various types of liver fibrosis, as compared with the contribution of hepatic stellate cells. In addition, cytoglobin, which is the fourth globin in mammals and function as a local gas sensor, provides a new perspective on the involvement of stellate cells in fibrosis and carcinogenesis, possibly through its anti-oxidative properties and is a promising new marker that discriminates between myofibroblasts derived from stellate cells and those from portal fibroblasts.
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Affiliation(s)
- Norifumi Kawada
- Department of Hepatology, Graduate School of Medicine, Osaka City University Osaka, Japan
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Stone LC, Thorne LS, Weston CJ, Graham M, Hodges NJ. Cytoglobin expression in the hepatic stellate cell line HSC-T6 is regulated by extracellular matrix proteins dependent on FAK-signalling. FIBROGENESIS & TISSUE REPAIR 2015; 8:15. [PMID: 26300973 PMCID: PMC4546255 DOI: 10.1186/s13069-015-0032-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 08/06/2015] [Indexed: 12/30/2022]
Abstract
BACKGROUND Fibrosis is a physiological response to cellular injury in the liver and is mediated by the activation of hepatic stellate cells resulting in the replacement of hepatocytes with extracellular matrix comprised principally of collagen 1 to form a hepatic scar. Although the novel hexaco-ordinated globin cytoglobin was identified in activated hepatic stellate cells more than 10 years ago, its role in stellate cell biology and liver fibrosis remains enigmatic. RESULTS In the current study, we investigated the role of different extracellular matrix proteins in stellate cell proliferation, activation (alpha smooth muscle actin expression and retinoic acid uptake) and cytoglobin expression. Our results demonstrate that cytoglobin expression is correlated with a more quiescent phenotype of stellate cells in culture and that cytoglobin is regulated by the extracellular matrix through integrin signalling dependent on activation of focal adhesion kinase. CONCLUSIONS Although further studies are required, we provide evidence that cytoglobin is a negative regulator of stellate cell activation and therefore may represent a novel target for anti-fibrotic treatments in the future.
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Affiliation(s)
- Louise Catherine Stone
- />School of Biosciences and School of Medicine, The University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Lorna Susan Thorne
- />School of Biosciences and School of Medicine, The University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Christopher John Weston
- />School of Biosciences and School of Medicine, The University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
| | - Mark Graham
- />School of Biosciences and MG Toxicology Consulting Ltd, Birmingham, UK
| | - Nikolas John Hodges
- />School of Biosciences and School of Medicine, The University of Birmingham, Edgbaston, Birmingham, B15 2TT UK
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Interaction of apoNeuroglobin with heme–Aβ complexes relevant to Alzheimer’s disease. J Biol Inorg Chem 2015; 20:563-74. [DOI: 10.1007/s00775-015-1241-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2014] [Accepted: 01/13/2015] [Indexed: 01/09/2023]
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Gorgun FM, Zhuo M, Singh S, Englander EW. Neuroglobin mitigates mitochondrial impairments induced by acute inhalation of combustion smoke in the mouse brain. Inhal Toxicol 2015; 26:361-9. [PMID: 24730682 DOI: 10.3109/08958378.2014.902147] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Acute inhalation of combustion smoke adversely affects brain homeostasis and energy metabolism. We previously showed that overexpressed neuroglobin (Ngb), neuron specific globin protein, attenuates the formation of smoke inhalation-induced oxidative DNA damage, in vivo, in the mouse brain, while others reported protection by Ngb in diverse models of brain injury, mainly involving oxidative stress and hypoxic/ischemic insults. OBJECTIVE To determine to what extent elevated Ngb ameliorates post smoke-inhalation brain bioenergetics and homeostasis in Ngb overexpressing transgenic mouse. METHODS Smoke inhalation induced changes in bioenergetics were measured in the wild type and Ngb transgene mouse brain. Modulations of mitochondrial respiration were analyzed using the Seahorse XF24 flux analyzer and changes in cytoplasmic energy metabolism were assessed by measuring enzymatic activities and lactate in the course of post smoke recovery. RESULTS Cortical mitochondria from Ngb transgene, better maintained ATP synthesis-linked oxygen consumption and unlike wild type mitochondria did not increase futile oxygen consumption feeding the proton leak, reflecting lesser smoke-induced mitochondrial compromise. Measurements revealed lesser reduction of mitochondrial ATP content and lesser compensatory increases in cytosolic energy metabolism, involving pyruvate kinase and lactate dehydrogenase activities as well as cytosolic lactate levels. Additionally, induction of c-Fos, the early response gene and key neuronal stress sensor, was attenuated in Ngb transgene compared to wild type brain after smoke. CONCLUSION Considered together, these differences reflect lesser perturbations produced by acute inhalation of combustion smoke in the Ngb overexpressing mouse, suggesting that Ngb mitigates mitochondrial dysfunction and neurotoxicity and raises the threshold of smoke inhalation-induced brain injury.
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Affiliation(s)
- Falih Murat Gorgun
- Department of Surgery, University of Texas Medical Branch , Galveston, TX , USA
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41
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Jusman SW, Iswanti FC, Suyatna FD, Ferdinal F, Wanandi SI, Sadikin M. Cytoglobin expression in oxidative stressed liver during systemic chronic normobaric hypoxia and relation with HIF-1α. MEDICAL JOURNAL OF INDONESIA 2014. [DOI: 10.13181/mji.v23i3.1025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
Abstract
Background: Liver is sensitive against hypoxia and hypoxia will stabilize HIF-1α. At the same time, hypoxia will produce reactive oxygen species (ROS) which can be scavenged by Cygb. The purpose of our study is to know, if normobaric hypoxia can induce Cygb expression and its association with HIF-1α stabilization.Methods: This is an experimental study using 28 male Sprague-Dawley rats, 150-200 g weight. Rats are divided into 7 groups: control group and treatment groups that are kept in hypoxic chamber (10% O2: 90% N2) for 6 hours, 1, 2, 3, 7 and 14 days. All rats are euthanized after treatment and liver tissue are isolated, homogenized and analyzed for oxidative stress parameter, expression of Cygb and HIF-1α.Results: Expression of Cygb mRNA and protein was increased on the day-1 after treatment and reach the maximum expression on the day-2 of hypoxia treatment. But, the expression was decreased after the day-3 and slightly increased at the day-14 of hypoxia. The correlation between expression of Cygb and oxidative stress parameter was strongly correlated. Cygb mRNA, as well as protein, showed the same kinetic as the HIF-1, all increased about day-1 and day-2.Conclusion: Systemic chronic hypoxia and/or oxidative stress up-regulated HIF-1α mRNA which is correlated with the Cygb mRNA and protein expression. Cygb mRNA as well as Cygb protein showed the same kinetic as the HIF-1, all increased about day-1 and day-2 suggesting that Cygb could be under the regulation of HIF-1, but could be controlled also by other factor than HIF-1.
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Hundahl CA, Fahrenkrug J, Hannibal J. Neurochemical phenotype of cytoglobin-expressing neurons in the rat hippocampus. Biomed Rep 2014; 2:620-627. [PMID: 25054000 DOI: 10.3892/br.2014.299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2014] [Accepted: 06/03/2014] [Indexed: 11/05/2022] Open
Abstract
Cytoglobin (Cygb), a novel oxygen-binding protein, is expressed in the majority of tissues and has been proposed to function in nitric oxide (NO) metabolism in the vasculature and to have cytoprotective properties. However, the overall functions of Cygb remain elusive. Cygb is also expressed in a subpopulation of brain neurons. Recently, it has been shown that stress upregulates Cygb expression in the brain and the majority of neuronal nitric oxide synthase (nNOS)-positive neurons, an enzyme that produces NO, co-express Cygb. However, there are more neurons expressing Cygb than nNOS, thus a large number of Cygb neurons remain uncharacterized by the neurochemical content. The aim of the present study was to provide an additional and more detailed neurochemical phenotype of Cygb-expressing neurons in the rat hippocampus. The rat hippocampus was chosen due to the abundance of Cygb, as well as this limbic structure being an important target in a number of neurodegenerative diseases. Using triple immunohistochemistry, it was demonstrated that nearly all the parvalbumin- and heme oxygenase 1-positive neurons co-express Cygb and to a large extent, these neuron populations are distinct from the population of Cygb neurons co-expressing nNOS. Furthermore, it was shown that the majority of neurons expressing somastostatin and vasoactive intestinal peptide also co-express Cygb and nNOS. Detailed information regarding the neurochemical phenotype of Cygb neurons in the hippocampus can be a valuable tool in determining the function of Cygb in the brain.
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Affiliation(s)
- Christian Ansgar Hundahl
- Department of Physiology, Institute of Bio- and Translational Medicine, University of Tartu, Tartu 50411, Estonia, Denmark ; Centre for Excellence in Translation Medicine, University of Tartu, Tartu 50411, Estonia, Denmark
| | - Jan Fahrenkrug
- Department of Clinical Biochemistry, Bispebjerg Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2400, Denmark
| | - Jens Hannibal
- Department of Clinical Biochemistry, Bispebjerg Hospital, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 2400, Denmark
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Diet carotenoid lutein modulates the expression of genes related to oxygen transporters and decreases DNA damage and oxidative stress in mice. Food Chem Toxicol 2014; 70:205-13. [PMID: 24865317 DOI: 10.1016/j.fct.2014.05.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 05/15/2014] [Accepted: 05/17/2014] [Indexed: 01/10/2023]
Abstract
Lutein (LT) is a carotenoid obtained by diet and despite its antioxidant activity had been biochemically reported, few studies are available concerning its influence on the expression of antioxidant genes. The expression of 84 genes implicated in antioxidant defense was quantified using quantitative reverse transcription polymerase chain reaction array. DNA damage was measured by comet assay and glutathione (GSH) and thiobarbituric acid reactive substances (TBARS) were quantified as biochemical parameters of oxidative stress in mouse kidney and liver. cDDP treatment reduced concentration of GSH and increased TBARS, parameters that were ameliorated in treatment associated with LT. cDDP altered the expression of 32 genes, increasing the expression of GPx2, APC, Nqo1 and CCs. LT changed the expression of 37 genes with an induction of 13 mainly oxygen transporters. In treatments associating cDDP and LT, 30 genes had their expression changed with a increase of the same genes of the cDDP treatment alone. These results suggest that LT might act scavenging reactive species and also inducing the expression of genes related to a better antioxidant response, highlighting the improvement of oxygen transport. This improved redox state of the cell through LT treatment could be related to the antigenotoxic and antioxidant effects observed.
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Chakraborty S, John R, Nag A. Cytoglobin in tumor hypoxia: novel insights into cancer suppression. Tumour Biol 2014; 35:6207-19. [PMID: 24816917 DOI: 10.1007/s13277-014-1992-z] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 04/17/2014] [Indexed: 01/19/2023] Open
Abstract
Emerging new and intriguing roles of cytoglobin (Cygb) have attracted considerable attention of cancer researchers in recent years. Hypoxic upregulation of Cygb as well as its altered expression in various human cancers suggest another possible role of this newly discovered globin in tumor cell response under low oxygen tension. Since tumor hypoxia is strongly associated with malignant progression of disease and poor treatment response, it constitutes an area of paramount importance for rational design of cancer selective therapies. However, the mechanisms involved during this process are still elusive. This review outlines the current understanding of Cygb's involvement in tumor hypoxia and discusses its role in tumorigenesis. A better perception of Cygb in tumor hypoxia response is likely to open novel perspectives for future tumor therapy.
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Affiliation(s)
- Sankalpa Chakraborty
- Department of Biochemistry, University of Delhi South Campus, Benito Juarez Marg, New Delhi, 110021, India
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Ascenzi P, Gustincich S, Marino M. Mammalian nerve globins in search of functions. IUBMB Life 2014; 66:268-76. [DOI: 10.1002/iub.1267] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2014] [Accepted: 04/02/2014] [Indexed: 12/24/2022]
Affiliation(s)
- Paolo Ascenzi
- Interdepartmental Laboratory of Electron Microscopy; University Roma Tre; Roma Italy
| | | | - Maria Marino
- Department of Science; University Roma Tre; Roma Italy
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46
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Affiliation(s)
- Luisa B. Maia
- REQUIMTE/CQFB, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - José J. G. Moura
- REQUIMTE/CQFB, Departamento
de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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47
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Omar SA, Webb AJ. Nitrite reduction and cardiovascular protection. J Mol Cell Cardiol 2014; 73:57-69. [PMID: 24486197 DOI: 10.1016/j.yjmcc.2014.01.012] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2013] [Revised: 01/20/2014] [Accepted: 01/22/2014] [Indexed: 10/25/2022]
Abstract
Inorganic nitrite, a metabolite of endogenously produced nitric oxide (NO) from NO synthases (NOS), provides the largest endocrine source of directly bioavailable NO. The conversion of nitrite to NO occurs mainly through enzymatic reduction, mediated by a range of proteins, including haem-globins, molybdo-flavoproteins, mitochondrial proteins, cytochrome P450 enzymes, and NOS. Such nitrite reduction is particularly favoured under hypoxia, when endogenous formation of NO from NOS is impaired. Under normoxic conditions, the majority of these nitrite reductases also scavenge NO, or diminish its bioavailability via reactive oxygen species (ROS) production, suggesting an intricate balance. Moreover, nitrite, whether produced endogenously, or derived from exogenous nitrite or nitrate administration (including dietary sources via the Nitrate-Nitrite-NO pathway) beneficially modulates many key cardiovascular pathological processes. In this review, we highlight the landmark studies which revealed nitrite's function in biological systems, and inspect its evolving role in cardiovascular protection. Whilst these effects have mainly been ascribed to the activity of one or more nitrite reductases, we also discuss newly-identified mechanisms, including nitrite anhydration, the involvement of s-nitrosothiols, nitro-fatty acids, and direct nitrite normoxic signalling, involving modification of mitochondrial structure and function, and ROS production. This article is part of a Special Issue entitled "Redox Signalling in the Cardiovascular System".
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Affiliation(s)
- Sami A Omar
- King's College London British Heart Foundation Centre, Cardiovascular Division, Department of Clinical Pharmacology, 4th Floor North Wing, St. Thomas' Hospital, London SE1 7EH, UK; Biomedical Research Centre, Guy's & St Thomas' NHS Foundation Trust, London, UK.
| | - Andrew James Webb
- King's College London British Heart Foundation Centre, Cardiovascular Division, Department of Clinical Pharmacology, 4th Floor North Wing, St. Thomas' Hospital, London SE1 7EH, UK; Biomedical Research Centre, Guy's & St Thomas' NHS Foundation Trust, London, UK.
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48
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Cytoglobin modulates myogenic progenitor cell viability and muscle regeneration. Proc Natl Acad Sci U S A 2013; 111:E129-38. [PMID: 24367119 DOI: 10.1073/pnas.1314962111] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Mammalian skeletal muscle can remodel, repair, and regenerate itself by mobilizing satellite cells, a resident population of myogenic progenitor cells. Muscle injury and subsequent activation of myogenic progenitor cells is associated with oxidative stress. Cytoglobin is a hemoprotein expressed in response to oxidative stress in a variety of tissues, including striated muscle. In this study, we demonstrate that cytoglobin is up-regulated in activated myogenic progenitor cells, where it localizes to the nucleus and contributes to cell viability. siRNA-mediated depletion of cytoglobin from C2C12 myoblasts increased levels of reactive oxygen species and apoptotic cell death both at baseline and in response to stress stimuli. Conversely, overexpression of cytoglobin reduced reactive oxygen species levels, caspase activity, and cell death. Mice in which cytoglobin was knocked out specifically in skeletal muscle were generated to examine the role of cytoglobin in vivo. Myogenic progenitor cells isolated from these mice were severely deficient in their ability to form myotubes as compared with myogenic progenitor cells from wild-type littermates. Consistent with this finding, the capacity for muscle regeneration was severely impaired in mice deficient for skeletal-muscle cytoglobin. Collectively, these data demonstrate that cytoglobin serves an important role in muscle repair and regeneration.
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Nicolis S, Monzani E, Pezzella A, Ascenzi P, Sbardella D, Casella L. Neuroglobin Modification by Reactive Quinone Species. Chem Res Toxicol 2013; 26:1821-31. [DOI: 10.1021/tx4001896] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Stefania Nicolis
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Enrico Monzani
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
| | - Alessandro Pezzella
- Dipartimento
di Scienze Chimiche, Università di Napoli ‘Federico II’, Via Cintia 4, 80126 Napoli, Italy
| | - Paolo Ascenzi
- Laboratorio
Interdipartimentale di Microscopia Elettronica, Università Roma Tre, Via della Vasca Navale 79, 00146 Roma, Italy
| | - Diego Sbardella
- Dipartimento
di Scienze Cliniche e Medicina Traslazionale, Università di Roma ‘Tor Vergata’, Via Montpellier 1, 00133 Roma, Italy
- Consorzio Interuniversitario per la Ricerca sulla Chimica dei Metalli nei Sistemi Biologici, Via C. Ulpiani
27, 70126 Bari, Italy
| | - Luigi Casella
- Dipartimento
di Chimica, Università di Pavia, Via Taramelli 12, 27100 Pavia, Italy
- Consorzio Interuniversitario per la Ricerca sulla Chimica dei Metalli nei Sistemi Biologici, Via C. Ulpiani
27, 70126 Bari, Italy
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Raida Z, Hundahl CA, Nyengaard JR, Hay-Schmidt A. Neuroglobin over expressing mice: expression pattern and effect on brain ischemic infarct size. PLoS One 2013; 8:e76565. [PMID: 24098534 PMCID: PMC3788103 DOI: 10.1371/journal.pone.0076565] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Accepted: 08/28/2013] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND Stroke is a major cause of death and severe disability, but effective treatments are limited. Neuroglobin, a neuronal heme-globin, has been advocated as a novel pharmacological target in combating stroke and neurodegenerative disorders based on cytoprotective properties. Using thoroughly validated antibodies and oligos, we give a detailed brain anatomical characterization of transgenic mice over expressing Neuroglobin. Moreover, using permanent middle artery occlusion the effect of elevated levels of Neuroglobin on ischemic damage was studied. Lastly, the impact of mouse strain genetic background on ischemic damage was investigated. PRINCIPAL FINDINGS A four to five fold increase in Neuroglobin mRNA and protein expression was seen in the brain of transgenic mice. A β-actin promoter was used to drive Neuroglobin over expression, but immunohistochemistry and in situ hybridization showed over expression to be confined to primarily the cortex, hippocampus, cerebellum, and only in neurons. The level and expression pattern of endogenous Neuroglobin was unaffected by insertion of the over expressing Ngb transgene. Neuroglobin over expression resulted in a significant reduction in infarct volume 24 hours after ischemia. Immunohistochemistry showed no selective sparing of Neuroglobin expressing cells in the ischemic core or penumbra. A significant difference in infarct volume was found between mice of the same strain, but from different colonies. SIGNIFICANCE In contrast to some previous reports, Neuroglobin over expression is not global but confined to a few well-defined brain regions, and only in neurons. This study confirms previous reports showing a correlation between reduced infarct volume and elevated Neuroglobin levels, but underlines the need to study the likely contribution from compensatory mechanisms to the phenotype following a genetic perturbation. We also stress, that care should be taken when comparing results where different mouse strains and colonies have been used due to large genetic background contribution to the observed phenotype.
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Affiliation(s)
- Zindy Raida
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- * E-mail: (ZR); (CAH); (AH-S)
| | - Christian Ansgar Hundahl
- Centre of Excellence for Translational Medicine, University of Tartu, Tartu, Estonia
- * E-mail: (ZR); (CAH); (AH-S)
| | - Jens R. Nyengaard
- Stereology and Electron Microscopy Laboratory, Centre for Stochastic Geometry and Advanced Bioimaging, Aarhus University, Aarhus, Denmark
| | - Anders Hay-Schmidt
- Department of Neuroscience and Pharmacology, University of Copenhagen, Copenhagen, Denmark
- * E-mail: (ZR); (CAH); (AH-S)
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