1
|
Moldogazieva NT, Zavadskiy SP, Astakhov DV, Terentiev AA. Lipid peroxidation: Reactive carbonyl species, protein/DNA adducts, and signaling switches in oxidative stress and cancer. Biochem Biophys Res Commun 2023; 687:149167. [PMID: 37939506 DOI: 10.1016/j.bbrc.2023.149167] [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: 09/04/2023] [Revised: 10/15/2023] [Accepted: 10/26/2023] [Indexed: 11/10/2023]
Abstract
Under the exposure of lipids to reactive oxygen species (ROS), lipid peroxidation proceeds non-enzymatically and generates an extremely heterogeneous mixture of reactive carbonyl species (RCS). Among them, HNE, HHE, MDA, methylglyoxal, glyoxal, and acrolein are the most studied and/or abundant ones. Over the last decades, significant progress has been achieved in understanding mechanisms of RCS generation, protein/DNA adduct formation, and their identification and quantification in biological samples. In our review, we critically discuss the advancements in understanding the roles of RCS-induced protein/DNA modifications in signaling switches to provide adaptive cell response under physiological and oxidative stress conditions. At non-toxic concentrations, RCS modify susceptible Cys residue in c-Src to activate MAPK signaling and Cys, Lys, and His residues in PTEN to cause its reversible inactivation, thereby stimulating PI3K/PKB(Akt) pathway. RCS toxic concentrations cause irreversible Cys modifications in Keap1 and IKKβ followed by stabilization of Nrf2 and activation of NF-κB, respectively, for their nuclear translocation and antioxidant gene expression. Dysregulation of these mechanisms causes diseases including cancer. Alterations in RCS, RCS detoxifying enzymes, RCS-modified protein/DNA adducts, and signaling pathways have been implicated in various cancer types.
Collapse
Affiliation(s)
- Nurbubu T Moldogazieva
- Department of Pharmacology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, 119991, 8 Trubetskaya Street, Moscow, Russia.
| | - Sergey P Zavadskiy
- Department of Pharmacology, A.P. Nelyubin Institute of Pharmacy, I.M. Sechenov First Moscow State Medical University, 119991, 8 Trubetskaya Street, Moscow, Russia
| | - Dmitry V Astakhov
- Department of Biochemistry, Institute of Biodesign and Complex Systems Modelling, I.M. Sechenov First Moscow State Medical University, 119991, 8 Trubetskaya Str., Moscow, Russia
| | - Alexander A Terentiev
- Department of Biochemistry and Molecular Biology, N.I. Pirogov Russian National Research Medical University, 117997, 1 Ostrovityanov Street, Moscow, Russia
| |
Collapse
|
2
|
Lei XL, Yang QL, Wei YZ, Qiu X, Zeng HY, Yan AM, Peng K, Li YL, Rao FQ, Chen FH, Xiang L, Wu KC. Identification of a novel ferroptosis-related gene signature associated with retinal degeneration induced by light damage in mice. Heliyon 2023; 9:e23002. [PMID: 38144322 PMCID: PMC10746433 DOI: 10.1016/j.heliyon.2023.e23002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 11/13/2023] [Accepted: 11/23/2023] [Indexed: 12/26/2023] Open
Abstract
Background Neurodegenerative retinal diseases such as retinitis pigmentosa are serious disorders that may cause irreversible visual impairment. Ferroptosis is a novel type of programmed cell death, and the involvement of ferroptosis in retinal degeneration is still unclear. This study aimed to investigate the related ferroptosis genes in a mice model of retinal degeneration induced by light damage. Methods A public dataset of GSE10528 deriving from the Gene Expression Omnibus database was analyzed to identify the differentially expressed genes (DEGs). Gene set enrichment analysis between light damage and control group was conducted. The differentially expressed ferroptosis-related genes (DE-FRGs) were subsequently identified by intersecting the DEGs with a ferroptosis genes dataset retrieved from the FerrDb database. The Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were further performed using the DE-FRGs. A protein-protein interaction (PPI) network was constructed to identify hub ferroptosis-related genes (HFRGs). The microRNAs (miRNAs)-HFRGs, transcription factors (TFs)-HFRGs networks as well as target drugs potentially interacting with HFRGs were analyzed utilizing bioinformatics algorithms. Results A total of 932 DEGs were identified between the light damage and control group. Among these, 25 genes were associated with ferroptosis. GO and KEGG analyses revealed that these DE-FRGs were mainly enriched in apoptotic signaling pathway, response to oxidative stress and autophagy, ferroptosis, necroptosis and cytosolic DNA-sensing pathway. Through PPI network analysis, six hub ferroptosis-related genes (Jun, Stat3, Hmox1, Atf3, Hspa5 and Ripk1) were ultimately identified. All of them were upregulated in light damage retinas, as verified by the GSE146176 dataset. Bioinformatics analyses predicated that 116 miRNAs, 23 TFs and several potential therapeutic compounds might interact with the identified HFRGs. Conclusion Our study may provide novel potential biomarkers, therapeutic targets and new insights into the ferroptosis landscape in retinal neurodegenerative diseases.
Collapse
Affiliation(s)
- Xin-Lan Lei
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
- Aier Eye Hospital of Wuhan University, Wuhan, China
| | - Qiao-Li Yang
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Yong-Zhao Wei
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Xu Qiu
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Hui-Yi Zeng
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Ai-Min Yan
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Kai Peng
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Ying-Lin Li
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Feng-Qin Rao
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Feng-Hua Chen
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
| | - Lue Xiang
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| | - Kun-Chao Wu
- The Department of Ophthalmology, First People's Hospital of Guiyang, Guiyang, China
- State Key Laboratory of Ophthalmology, Optometry and Vision Science, Eye Hospital, Wenzhou Medical University, Wenzhou, China
| |
Collapse
|
3
|
The Mito-Hormetic Mechanisms of Ozone in the Clearance of SARS-CoV2 and in the COVID-19 Therapy. Biomedicines 2022; 10:biomedicines10092258. [PMID: 36140358 PMCID: PMC9496465 DOI: 10.3390/biomedicines10092258] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022] Open
Abstract
An increasing body of evidence in the literature is reporting the feasibility of using medical ozone as a possible alternative and adjuvant treatment for COVID-19 patients, significantly reducing hospitalization time, pro-inflammatory indicators, and coagulation markers and improving blood oxygenation parameters. In addition to the well-described ability of medical ozone in counteracting oxidative stress through the upregulation of the main anti-oxidant and scavenging enzymes, oxygen–ozone (O2–O3) therapy has also proved effective in reducing chronic inflammation and the occurrence of immune thrombosis, two key players involved in COVID-19 exacerbation and severity. As chronic inflammation and oxidative stress are also reported to be among the main drivers of the long sequelae of SARS-CoV2 infection, a rising number of studies is investigating the potential of O2–O3 therapy to reduce and/or prevent the wide range of post-COVID (or PASC)-related disorders. This narrative review aims to describe the molecular mechanisms through which medical ozone acts, to summarize the clinical evidence on the use of O2–O3 therapy as an alternative and adjuvant COVID-19 treatment, and to discuss the emerging potential of this approach in the context of PASC symptoms, thus offering new insights into effective and safe nonantiviral therapies for the fighting of this devastating pandemic.
Collapse
|
4
|
Pisu D, Huang L, Narang V, Theriault M, Lê-Bury G, Lee B, Lakudzala AE, Mzinza DT, Mhango DV, Mitini-Nkhoma SC, Jambo KC, Singhal A, Mwandumba HC, Russell DG. Single cell analysis of M. tuberculosis phenotype and macrophage lineages in the infected lung. J Exp Med 2021; 218:e20210615. [PMID: 34292313 PMCID: PMC8302446 DOI: 10.1084/jem.20210615] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 05/19/2021] [Accepted: 06/24/2021] [Indexed: 12/11/2022] Open
Abstract
In this study, we detail a novel approach that combines bacterial fitness fluorescent reporter strains with scRNA-seq to simultaneously acquire the host transcriptome, surface marker expression, and bacterial phenotype for each infected cell. This approach facilitates the dissection of the functional heterogeneity of M. tuberculosis-infected alveolar (AMs) and interstitial macrophages (IMs) in vivo. We identify clusters of pro-inflammatory AMs associated with stressed bacteria, in addition to three different populations of IMs with heterogeneous bacterial phenotypes. Finally, we show that the main macrophage populations in the lung are epigenetically constrained in their response to infection, while inter-species comparison reveals that most AMs subsets are conserved between mice and humans. This conceptual approach is readily transferable to other infectious disease agents with the potential for an increased understanding of the roles that different host cell populations play during the course of an infection.
Collapse
MESH Headings
- Animals
- Antitubercular Agents/pharmacology
- Bronchoalveolar Lavage Fluid/microbiology
- CD11 Antigens/immunology
- CD11 Antigens/metabolism
- Epigenesis, Genetic
- Gene Expression Regulation, Bacterial
- Heme/metabolism
- Host-Pathogen Interactions
- Humans
- Lung/microbiology
- Lung/pathology
- Macrophages, Alveolar/immunology
- Macrophages, Alveolar/microbiology
- Macrophages, Alveolar/pathology
- Mice, Inbred C57BL
- Microorganisms, Genetically-Modified
- Mycobacterium tuberculosis/drug effects
- Mycobacterium tuberculosis/genetics
- Mycobacterium tuberculosis/immunology
- Mycobacterium tuberculosis/pathogenicity
- Sequence Analysis, RNA
- Single-Cell Analysis
- Tuberculosis, Pulmonary/genetics
- Tuberculosis, Pulmonary/microbiology
- Tuberculosis, Pulmonary/pathology
- Mice
Collapse
Affiliation(s)
- Davide Pisu
- Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Lu Huang
- Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY
- Microbiology and Immunology, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Vipin Narang
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Monique Theriault
- Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Gabrielle Lê-Bury
- Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Bernett Lee
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
| | - Agnes E. Lakudzala
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
| | - David T. Mzinza
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
| | - David V. Mhango
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
| | - Steven C. Mitini-Nkhoma
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
| | - Kondwani C. Jambo
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - Amit Singhal
- Singapore Immunology Network, Agency for Science, Technology and Research, Singapore
- A*STAR Infectious Diseases Laboratories, Agency for Science, Technology and Research, Singapore
| | - Henry C. Mwandumba
- Malawi Liverpool Wellcome Trust Clinical Research Program, University of Malawi College of Medicine, Blantyre, Malawi
- Department of Clinical Sciences, Liverpool School of Tropical Medicine, Liverpool, UK
| | - David G. Russell
- Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY
| |
Collapse
|
5
|
Eskandari R, Hess JP, Tochtrop GP. Synthesis of α,β-unsaturated epoxy ketones utilizing a bifunctional sulfonium/phosphonium ylide. Chem Commun (Camb) 2021; 57:7136-7139. [PMID: 34180477 DOI: 10.1039/d1cc02475b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, a new protocol for rapid synthesis of α,β-unsaturated epoxy ketones utilizing a bifunctional sulfonium/phosphonium ylide is described. This approach comprises two sequential chemoselective reactions between sulfonium and phosphonium ylides and two distinct aldehydes, which allows for the rapid construction of a variety of unsymmetric α,β-unsaturated epoxy ketones. This methodology allows the rapid construction of the core reactive functionality of a family of lipid peroxidation products, the epoxyketooctadecenoic acids, but can be further broadly utilized as a useful synthon for the synthesis of natural products, particularly those derived from oxidized fatty acids. Accordingly, a protocol utilizing this approach to synthesize the epoxyketooctadecenoic acid family of molecules is described.
Collapse
Affiliation(s)
- Roozbeh Eskandari
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
| | - Jeremy P Hess
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
| | - Gregory P Tochtrop
- Department of Chemistry, Case Western Reserve University, Cleveland, Ohio, USA.
| |
Collapse
|
6
|
Sun GY, Simonyi A, Fritsche KL, Chuang DY, Hannink M, Gu Z, Greenlief CM, Yao JK, Lee JC, Beversdorf DQ. Docosahexaenoic acid (DHA): An essential nutrient and a nutraceutical for brain health and diseases. Prostaglandins Leukot Essent Fatty Acids 2018; 136:3-13. [PMID: 28314621 PMCID: PMC9087135 DOI: 10.1016/j.plefa.2017.03.006] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 03/06/2017] [Accepted: 03/09/2017] [Indexed: 01/01/2023]
Abstract
Docosahexaenoic acid (DHA), a polyunsaturated fatty acid (PUFA) enriched in phospholipids in the brain and retina, is known to play multi-functional roles in brain health and diseases. While arachidonic acid (AA) is released from membrane phospholipids by cytosolic phospholipase A2 (cPLA2), DHA is linked to action of the Ca2+-independent iPLA2. DHA undergoes enzymatic conversion by 15-lipoxygenase (Alox 15) to form oxylipins including resolvins and neuroprotectins, which are powerful lipid mediators. DHA can also undergo non-enzymatic conversion by reacting with oxygen free radicals (ROS), which cause the production of 4-hydoxyhexenal (4-HHE), an aldehyde derivative which can form adducts with DNA, proteins and lipids. In studies with both animal models and humans, there is evidence that inadequate intake of maternal n-3 PUFA may lead to aberrant development and function of the central nervous system (CNS). What is less certain is whether consumption of n-3 PUFA is important in maintaining brain health throughout one's life span. Evidence mostly from non-human studies suggests that DHA intake above normal nutritional requirements might modify the risk/course of a number of diseases of the brain. This concept has fueled much of the present interest in DHA research, in particular, in attempts to delineate mechanisms whereby DHA may serve as a nutraceutical and confer neuroprotective effects. Current studies have revealed ability for the oxylipins to regulation of cell redox homeostasis through the Nuclear factor (erythroid-derived 2)-like 2/Antioxidant response element (Nrf2/ARE) anti-oxidant pathway, and impact signaling pathways associated with neurotransmitters, and modulation of neuronal functions involving brain-derived neurotropic factor (BDNF). This review is aimed at describing recent studies elaborating these mechanisms with special regard to aging and Alzheimer's disease, autism spectrum disorder, schizophrenia, traumatic brain injury, and stroke.
Collapse
Affiliation(s)
- Grace Y Sun
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Agnes Simonyi
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Kevin L Fritsche
- Department of Nutrition and Exercise Physiology, University of Missouri, Columbia, MO, United States
| | - Dennis Y Chuang
- Department of Neurology, University Hospitals Cleveland Medical Center and Case Western Reserve University, Cleveland, OH, United States
| | - Mark Hannink
- Biochemistry Department, University of Missouri, Columbia, MO, United States
| | - Zezong Gu
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO, United States
| | | | - Jeffrey K Yao
- Medical Research Service, VA Pittsburgh Healthcare System, and Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - James C Lee
- Department of Bioengineering, University of Illinois at Chicago, Chicago, IL, United States
| | - David Q Beversdorf
- Department of Radiology, Neurology, and Psychological Sciences, and the Thompson Center, William and Nancy Thompson Endowed Chair in Radiology, University of Missouri School of Medicine, Columbia, MO, United States
| |
Collapse
|
7
|
Hormetic and regulatory effects of lipid peroxidation mediators in pancreatic beta cells. Mol Aspects Med 2016; 49:49-77. [PMID: 27012748 DOI: 10.1016/j.mam.2016.03.001] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2015] [Revised: 02/23/2016] [Accepted: 03/09/2016] [Indexed: 12/12/2022]
Abstract
Nutrient sensing mechanisms of carbohydrates, amino acids and lipids operate distinct pathways that are essential for the adaptation to varying metabolic conditions. The role of nutrient-induced biosynthesis of hormones is paramount for attaining metabolic homeostasis in the organism. Nutrient overload attenuate key metabolic cellular functions and interfere with hormonal-regulated inter- and intra-organ communication, which may ultimately lead to metabolic derangements. Hyperglycemia and high levels of saturated free fatty acids induce excessive production of oxygen free radicals in tissues and cells. This phenomenon, which is accentuated in both type-1 and type-2 diabetic patients, has been associated with the development of impaired glucose tolerance and the etiology of peripheral complications. However, low levels of the same free radicals also induce hormetic responses that protect cells against deleterious effects of the same radicals. Of interest is the role of hydroxyl radicals in initiating peroxidation of polyunsaturated fatty acids (PUFA) and generation of α,β-unsaturated reactive 4-hydroxyalkenals that avidly form covalent adducts with nucleophilic moieties in proteins, phospholipids and nucleic acids. Numerous studies have linked the lipid peroxidation product 4-hydroxy-2E-nonenal (4-HNE) to different pathological and cytotoxic processes. Similarly, two other members of the family, 4-hydroxyl-2E-hexenal (4-HHE) and 4-hydroxy-2E,6Z-dodecadienal (4-HDDE), have also been identified as potential cytotoxic agents. It has been suggested that 4-HNE-induced modifications in macromolecules in cells may alter their cellular functions and modify signaling properties. Yet, it has also been acknowledged that these bioactive aldehydes also function as signaling molecules that directly modify cell functions in a hormetic fashion to enable cells adapt to various stressful stimuli. Recent studies have shown that 4-HNE and 4-HDDE, which activate peroxisome proliferator-activated receptor δ (PPARδ) in vascular endothelial cells and insulin secreting beta cells, promote such adaptive responses to ameliorate detrimental effects of high glucose and diabetes-like conditions. In addition, due to the electrophilic nature of these reactive aldehydes they form covalent adducts with electronegative moieties in proteins, phosphatidylethanolamine and nucleotides. Normally these non-enzymatic modifications are maintained below the cytotoxic range due to efficient cellular neutralization processes of 4-hydroxyalkenals. The major neutralizing enzymes include fatty aldehyde dehydrogenase (FALDH), aldose reductase (AR) and alcohol dehydrogenase (ADH), which transform the aldehyde to the corresponding carboxylic acid or alcohols, respectively, or by biding to the thiol group in glutathione (GSH) by the action of glutathione-S-transferase (GST). This review describes the hormetic and cytotoxic roles of oxygen free radicals and 4-hydroxyalkenals in beta cells exposed to nutritional challenges and the cellular mechanisms they employ to maintain their level at functional range below the cytotoxic threshold.
Collapse
|
8
|
Semen K, Yelisyeyeva O, Jarocka-Karpowicz I, Kaminskyy D, Solovey L, Skrzydlewska E, Yavorskyi O. Sildenafil reduces signs of oxidative stress in pulmonary arterial hypertension: Evaluation by fatty acid composition, level of hydroxynonenal and heart rate variability. Redox Biol 2015; 7:48-57. [PMID: 26654977 PMCID: PMC4683386 DOI: 10.1016/j.redox.2015.11.009] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2015] [Revised: 11/03/2015] [Accepted: 11/19/2015] [Indexed: 12/26/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a rare multifactorial disease with an unfavorable prognosis. Sildenafil therapy can improve functional capacity and pulmonary hemodynamics in PAH patients. Nowadays, it is increasingly recognized that the effects of sildenafil are pleiotropic and may also involve changes of the pro-/antioxidant balance, lipid peroxidation and autonomic control. In present study we aimed to assess the effects of sildenafil on the fatty acids (FAs) status, level of hydroxynonenal (HNE) and heart rate variability (HRV) in PAH patients. Patients with PAH were characterized by an increase in HNE and changes in the FAs composition with elevation of linoleic, oleic, docosahexanoic acids in phospholipids as well as reduced HRV with sympathetic predominance. Sildenafil therapy improved exercise capacity and pulmonary hemodynamics and reduced NT-proBNP level in PAH. Antioxidant and anti-inflammatory effects of sildenafil were noted from the significant lowering of HNE level and reduction of the phopholipid derived oleic, linoleic, docosahexanoic, docosapentanoic FAs. That was also associated with some improvement of HRV on account of the activation of the neurohumoral regulatory component. Incomplete recovery of the functional metabolic disorders in PAH patients may be assumed from the persistent increase in free FAs, reduced HRV with the sympathetic predominance in the spectral structure after treatment comparing to control group. The possibilities to improve PAH treatment efficacy through mild stimulation of free radical reactions and formation of hormetic reaction in the context of improved NO signaling are discussed. Sildenafil showed antioxidant and anti-inflammatory effects in pulmonary hypertension. Sildenafil reduced hydroxynonenal level and improved fatty acid profile in serum. Improvement of heart rate variability and functional capacity was noted after therapy. Mild prooxidant activity is suggested as the mechanism to improve sildenafil efficacy.
Collapse
Affiliation(s)
- Khrystyna Semen
- Department of Propedeutics of Internal Medicine #2, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine.
| | - Olha Yelisyeyeva
- Department of Histology, Cytology and Embryology, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine.
| | - Iwona Jarocka-Karpowicz
- Department of Analytical Chemistry, Medical University of Bialystok, Jana Kilinskego 1, 15089 Bialystok, Poland
| | - Danylo Kaminskyy
- Department of Pharmaceutical, Organic, and Bioorganic Chemistry, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine
| | - Lyubomyr Solovey
- Lviv Regional Clinical Hospital, Chernigivska 7, 79010 Lviv, Ukraine
| | - Elzbieta Skrzydlewska
- Department of Analytical Chemistry, Medical University of Bialystok, Jana Kilinskego 1, 15089 Bialystok, Poland
| | - Ostap Yavorskyi
- Department of Propedeutics of Internal Medicine #2, Danylo Halytsky Lviv National Medical University, Pekarska 69, 79010 Lviv, Ukraine
| |
Collapse
|
9
|
Pecorelli A, Belmonte G, Meloni I, Cervellati F, Gardi C, Sticozzi C, De Felice C, Signorini C, Cortelazzo A, Leoncini S, Ciccoli L, Renieri A, Jay Forman H, Hayek J, Valacchi G. Alteration of serum lipid profile, SRB1 loss, and impaired Nrf2 activation in CDKL5 disorder. Free Radic Biol Med 2015; 86:156-65. [PMID: 26006105 PMCID: PMC5572621 DOI: 10.1016/j.freeradbiomed.2015.05.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/03/2015] [Accepted: 05/08/2015] [Indexed: 11/24/2022]
Abstract
CDKL5 mutation is associated with an atypical Rett syndrome (RTT) variant. Recently, cholesterol homeostasis perturbation and oxidative-mediated loss of the high-density lipoprotein receptor SRB1 in typical RTT have been suggested. Here, we demonstrate an altered lipid serum profile also in CDKL5 patients with decreased levels of SRB1 and impaired activation of the defensive system Nrf2. In addition, CDKL5 fibroblasts showed an increase in 4-hydroxy-2-nonenal- and nitrotyrosine-SRB1 adducts that lead to its ubiquitination and probable degradation. This study highlights a possible common denominator between two different RTT variants (MECP2 and CDKL5) and a possible common future therapeutic target.
Collapse
Affiliation(s)
- Alessandra Pecorelli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy; Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, "Santa Maria alle Scotte" General Hospital, Siena, Italy
| | - Giuseppe Belmonte
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | | | - Franco Cervellati
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Concetta Gardi
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Claudia Sticozzi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy
| | - Claudio De Felice
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Senese, "Santa Maria alle Scotte" General Hospital, Siena, Italy
| | - Cinzia Signorini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Alessio Cortelazzo
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, "Santa Maria alle Scotte" General Hospital, Siena, Italy
| | - Silvia Leoncini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy; Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, "Santa Maria alle Scotte" General Hospital, Siena, Italy
| | - Lucia Ciccoli
- Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Alessandra Renieri
- Medical Genetics, University of Siena, Siena, Italy; Genetica Medica, Azienda Ospedaliera Universitaria Senese, Siena, Italy
| | - Henry Jay Forman
- Life and Environmental Sciences Unit, University of California at Merced, Merced, CA 95344, USA; Andrus Gerontology Center of the Davis School of Gerontology, University of Southern California, Los Angeles, CA 90089, USA
| | - Joussef Hayek
- Child Neuropsychiatry Unit, Azienda Ospedaliera Universitaria Senese, "Santa Maria alle Scotte" General Hospital, Siena, Italy
| | - Giuseppe Valacchi
- Department of Life Sciences and Biotechnology, University of Ferrara, Ferrara, Italy; Department of Food and Nutrition, Kyung Hee University, Seoul, South Korea.
| |
Collapse
|