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Mangione R, Giallongo C, Duminuco A, La Spina E, Longhitano L, Giallongo S, Tibullo D, Lazzarino G, Saab MW, Sbriglione A, Palumbo GA, Graziani A, Alanazi AM, Di Pietro V, Tavazzi B, Amorini AM, Lazzarino G. Targeted Metabolomics Highlights Dramatic Antioxidant Depletion, Increased Oxidative/Nitrosative Stress and Altered Purine and Pyrimidine Concentrations in Serum of Primary Myelofibrosis Patients. Antioxidants (Basel) 2024; 13:490. [PMID: 38671937 PMCID: PMC11047794 DOI: 10.3390/antiox13040490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/13/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
To date, little is known concerning the circulating levels of biochemically relevant metabolites (antioxidants, oxidative/nitrosative stress biomarkers, purines, and pyrimidines) in patients with primary myelofibrosis (PMF), a rare form of myeloproliferative tumor causing a dramatic decrease in erythropoiesis and angiogenesis. In this study, using a targeted metabolomic approach, serum samples of 22 PMF patients and of 22 control healthy donors were analyzed to quantify the circulating concentrations of hypoxanthine, xanthine, uric acid (as representative purines), uracil, β-pseudouridine, uridine (as representative pyrimidines), reduced glutathione (GSH), ascorbic acid (as two of the main water-soluble antioxidants), malondialdehyde, nitrite, nitrate (as oxidative/nitrosative stress biomarkers) and creatinine, using well-established HPLC method for their determination. Results showed that PMF patients have dramatic depletions of both ascorbic acid and GSH (37.3- and 3.81-times lower circulating concentrations, respectively, than those recorded in healthy controls, p < 0.0001), accompanied by significant increases in malondialdehyde (MDA) and nitrite + nitrate (4.73- and 1.66-times higher circulating concentrations, respectively, than those recorded in healthy controls, p < 0.0001). Additionally, PMF patients have remarkable alterations of circulating purines, pyrimidines, and creatinine, suggesting potential mitochondrial dysfunctions causing energy metabolism imbalance and consequent increases in these cell energy-related compounds. Overall, these results, besides evidencing previously unknown serum metabolic alterations in PMF patients, suggest that the determination of serum levels of the aforementioned compounds may be useful to evaluate PMF patients on hospital admission for adjunctive therapies aimed at recovering their correct antioxidant status, as well as to monitor patients' status and potential pharmacological treatments.
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Affiliation(s)
- Renata Mangione
- Department of Basic Biotechnological Sciences, Intensive and Perioperative Clinics, Catholic University of the Sacred Heart of Rome, Largo F. Vito 1, 00168 Rome, Italy;
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Cesarina Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Andrea Duminuco
- Hematology Unit with BMT, A.O.U. Policlinico “G.Rodolico-San Marco”, Via S. Sofia 78, 95123 Catania, Italy;
| | - Enrico La Spina
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Sebastiano Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Arianna Sbriglione
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giuseppe A. Palumbo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, Division of Hematology, University of Catania, Via S. Sofia 87, 95123 Catania, Italy; (C.G.); (S.G.); (G.A.P.)
| | - Andrea Graziani
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Valentina Di Pietro
- Neurotrauma and Ophthalmology Research Group, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK;
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK
| | - Barbara Tavazzi
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy; (E.L.S.); (L.L.); (D.T.); (G.L.); (M.W.S.); (A.S.)
| | - Giacomo Lazzarino
- Departmental Faculty of Medicine, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy; (A.G.); (G.L.)
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Salomone F, Pipitone RM, Longo M, Malvestiti F, Amorini AM, Distefano A, Casirati E, Ciociola E, Iraci N, Leggio L, Zito R, Vicario N, Saoca C, Männistö V, Pihlajamäki J, Qadri S, Yki-Järvinen H, Romeo S, Pennisi G, Cabibi D, Lazzarino G, Fracanzani AL, Dongiovanni P, Valenti L, Petta S, Volti GL, Grimaudo S. Corrigendum to "SIRT5 rs12216101 T>G variant is associated with liver damage and mitochondrial dysfunction in patients with non-alcoholic fatty liver disease" [J Hepatol 80 (2024) 10-19]. J Hepatol 2024; 80:378. [PMID: 38182533 DOI: 10.1016/j.jhep.2023.12.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Affiliation(s)
- Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, Catania, Italy.
| | | | - Miriam Longo
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesco Malvestiti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | | | | | - Elia Casirati
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Ester Ciociola
- Deparment of Clinical and Molecular Medicine, University of Gothenburg, Sweden
| | - Nunzio Iraci
- Department BIOMETEC, University of Catania, Catania, Italy
| | | | - Rossella Zito
- Department PROMISE, University of Palermo, Palermo, Italy
| | - Nunzio Vicario
- Department BIOMETEC, University of Catania, Catania, Italy
| | - Concetta Saoca
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Ville Männistö
- Department of Medicine, University of Eastern Finland and Kuopio University Hospital, Finland
| | - Jussi Pihlajamäki
- Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Finland; Department of Medicine, Endocrinology, and Clinical Nutrition; Kuopio University Hospital, Kuopio, Finland
| | - Sami Qadri
- Minerva Foundation Institute for Medical Research, Helsinki, Finland; Department of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Hannele Yki-Järvinen
- Minerva Foundation Institute for Medical Research, Helsinki, Finland; Department of Medicine, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Stefano Romeo
- Deparment of Clinical and Molecular Medicine, University of Gothenburg, Sweden
| | - Grazia Pennisi
- Department PROMISE, University of Palermo, Palermo, Italy
| | - Daniela Cabibi
- Department PROMISE, University of Palermo, Palermo, Italy
| | | | - Anna Ludovica Fracanzani
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Paola Dongiovanni
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Luca Valenti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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Longhitano L, Distefano A, Musso N, Bonacci P, Orlando L, Giallongo S, Tibullo D, Denaro S, Lazzarino G, Ferrigno J, Nicolosi A, Alanazi AM, Salomone F, Tropea E, Barbagallo IA, Bramanti V, Li Volti G, Lazzarino G, Torella D, Amorini AM. (+)-Lipoic acid reduces mitochondrial unfolded protein response and attenuates oxidative stress and aging in an in vitro model of non-alcoholic fatty liver disease. J Transl Med 2024; 22:82. [PMID: 38245790 PMCID: PMC10799515 DOI: 10.1186/s12967-024-04880-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 01/10/2024] [Indexed: 01/22/2024] Open
Abstract
BACKGROUND Non-alcoholic fatty liver disease (NAFLD) is a liver disorder characterized by the ac-cumulation of fat in hepatocytes without alcohol consumption. Mitochondrial dysfunction and endoplasmic reticulum (ER) stress play significant roles in NAFLD pathogenesis. The unfolded protein response in mitochondria (UPRmt) is an adaptive mechanism that aims to restore mitochondrial protein homeostasis and mitigate cellular stress. This study aimed to investigate the effects of ( +)-Lipoic acid (ALA) on UPRmt, inflammation, and oxidative stress in an in vitro model of NAFLD using HepG2 cells treated with palmitic acid and oleic acid to induce steatosis. RESULTS Treatment with palmitic and oleic acids increased UPRmt-related proteins HSP90 and HSP60 (heat shock protein), and decreased CLPP (caseinolytic protease P), indicating ER stress activation. ALA treatment at 1 μM and 5 μM restored UPRmt-related protein levels. PA:OA (palmitic acid:oleic acid)-induced ER stress markers IRE1α (Inositol requiring enzyme-1), CHOP (C/EBP Homologous Protein), BIP (Binding Immunoglobulin Protein), and BAX (Bcl-2-associated X protein) were significantly reduced by ALA treatment. ALA also enhanced ER-mediated protein glycosylation and reduced oxidative stress, as evidenced by decreased GPX1 (Glutathione peroxidase 1), GSTP1 (glutathione S-transferase pi 1), and GSR (glutathione-disulfide reductase) expression and increased GSH (Glutathione) levels, and improved cellular senescence as shown by the markers β-galactosidase, γH2Ax and Klotho-beta. CONCLUSIONS In conclusion, ALA ameliorated ER stress, oxidative stress, and inflammation in HepG2 cells treated with palmitic and oleic acids, potentially offering therapeutic benefits for NAFLD providing a possible biochemical mechanism underlying ALA beneficial effects.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Nicolò Musso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Paolo Bonacci
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Laura Orlando
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Sebastiano Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Simona Denaro
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Jessica Ferrigno
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | - Anna Nicolosi
- Hospital Pharmacy Unit, Ospedale Cannizzaro, 95125, Catania, Italy
| | - Amer M Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Federico Salomone
- Division of Gastroenterology, Ospedale Di Acireale, Azienda Sanitaria Provinciale Di Catania, Catania, Italy
| | - Emanuela Tropea
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
| | | | - Vincenzo Bramanti
- U.O.S. Laboratory Analysis, Maggiore "Nino Baglieri" Hospital - ASP Ragusa, 97015, Modica (RG), Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy.
| | - Giacomo Lazzarino
- UniCamillus-Saint Camillus International University of Health Sciences, Via Di Sant'Alessandro 8, 00131, Rome, Italy
| | - Daniele Torella
- Department of Experimental and Clinical Medicine, Magna Graecia University, Catanzaro, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123, Catania, Italy
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4
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Salomone F, Pipitone RM, Longo M, Malvestiti F, Amorini AM, Distefano A, Casirati E, Ciociola E, Iraci N, Leggio L, Zito R, Vicario N, Saoca C, Pennisi G, Cabibi D, Lazzarino G, Fracanzani AL, Dongiovanni P, Valenti L, Petta S, Volti GL, Grimaudo S. SIRT5 rs12216101 T>G variant is associated with liver damage and mitochondrial dysfunction in patients with non-alcoholic fatty liver disease. J Hepatol 2024; 80:10-19. [PMID: 37890719 DOI: 10.1016/j.jhep.2023.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 08/30/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023]
Abstract
BACKGROUND & AIMS Sirtuin 5, encoded by the SIRT5 gene, is a NAD+-dependent deacylase that modulates mitochondrial metabolic processes through post-translational modifications. In this study, we aimed to examine the impact of the SIRT5 rs12216101 T>G non-coding single nucleotide polymorphism on disease severity in patients with non-alcoholic fatty liver disease (NAFLD). METHODS The rs12216101 variant was genotyped in 2,606 consecutive European patients with biopsy-proven NAFLD. Transcriptomic analysis, expression of mitochondrial complexes and oxidative stress levels were measured in liver samples from a subset of bariatric patients. Effects of SIRT5 pharmacological inhibition were evaluated in HepG2 cells exposed to excess free fatty acids. Mitochondrial energetics in vitro were investigated by high-performance liquid chromatography. RESULTS In the whole cohort, the frequency distribution of SIRT5 rs12216101 TT, TG and GG genotypes was 47.0%, 42.3% and 10.7%, respectively. At multivariate logistic regression analysis adjusted for sex, age >50 years, diabetes, and PNPLA3 rs738409 status, the SIRT5 rs12216101 T>G variant was associated with the presence of non-alcoholic steatohepatitis (odds ratio 1.20, 95% CI 1.03-1.40) and F2-F4 fibrosis (odds ratio 1.18; 95% CI 1.00-1.37). Transcriptomic analysis showed that the SIRT5 rs12216101 T>G variant was associated with upregulation of transcripts involved in mitochondrial metabolic pathways, including the oxidative phosphorylation system. In patients carrying the G allele, western blot analysis confirmed an upregulation of oxidative phosphorylation complexes III, IV, V and consistently higher levels of reactive oxygen species, reactive nitrogen species and malondialdehyde, and lower ATP levels. Administration of a pharmacological SIRT5 inhibitor preserved mitochondrial energetic homeostasis in HepG2 cells, as evidenced by restored ATP/ADP, NAD+/NADH, NADP+/NADPH ratios and glutathione levels. CONCLUSIONS The SIRT5 rs12216101 T>G variant, heightening SIRT5 activity, is associated with liver damage, mitochondrial dysfunction, and oxidative stress in patients with NAFLD. IMPACT AND IMPLICATIONS In this study we discovered that the SIRT5 rs12216101 T>G variant is associated with higher disease severity in patients with non-alcoholic fatty liver disease (NAFLD). This risk variant leads to a SIRT5 gain-of-function, enhancing mitochondrial oxidative phosphorylation and thus leading to oxidative stress. SIRT5 may represent a novel disease modulator in NAFLD.
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Affiliation(s)
- Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, Catania, Italy.
| | | | - Miriam Longo
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesco Malvestiti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | | | - Alfio Distefano
- Deparment of Clinical and Molecular Medicine, University of Gothenburg, Sweden
| | - Elia Casirati
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Ester Ciociola
- Deparment of Clinical and Molecular Medicine, University of Gothenburg, Sweden
| | - Nunzio Iraci
- Department BIOMETEC, University of Catania, Catania, Italy
| | | | - Rossella Zito
- Department PROMISE, University of Palermo, Palermo, Italy
| | - Nunzio Vicario
- Department BIOMETEC, University of Catania, Catania, Italy
| | - Concetta Saoca
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - Grazia Pennisi
- Department PROMISE, University of Palermo, Palermo, Italy
| | - Daniela Cabibi
- Department PROMISE, University of Palermo, Palermo, Italy
| | | | - Anna Ludovica Fracanzani
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy; Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Paola Dongiovanni
- Medicine & Metabolic Diseases, Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico, Milan, Italy
| | - Luca Valenti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
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5
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Giallongo C, Dulcamare I, Giallongo S, Duminuco A, Pieragostino D, Cufaro MC, Amorini AM, Lazzarino G, Romano A, Parrinello N, Di Rosa M, Broggi G, Caltabiano R, Caraglia M, Scrima M, Pasquale LS, Tathode MS, Li Volti G, Motterlini R, Di Raimondo F, Tibullo D, Palumbo GA. MacroH2A1.1 as a crossroad between epigenetics, inflammation and metabolism of mesenchymal stromal cells in myelodysplastic syndromes. Cell Death Dis 2023; 14:686. [PMID: 37852977 PMCID: PMC10584900 DOI: 10.1038/s41419-023-06197-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 09/15/2023] [Accepted: 09/28/2023] [Indexed: 10/20/2023]
Abstract
Ineffective hematopoiesis is a hallmark of myelodysplastic syndromes (MDS). Hematopoietic alterations in MDS patients strictly correlate with microenvironment dysfunctions, eventually affecting also the mesenchymal stromal cell (MSC) compartment. Stromal cells are indeed epigenetically reprogrammed to cooperate with leukemic cells and propagate the disease as "tumor unit"; therefore, changes in MSC epigenetic profile might contribute to the hematopoietic perturbations typical of MDS. Here, we unveil that the histone variant macroH2A1 (mH2A1) regulates the crosstalk between epigenetics and inflammation in MDS-MSCs, potentially affecting their hematopoietic support ability. We show that the mH2A1 splicing isoform mH2A1.1 accumulates in MDS-MSCs, correlating with the expression of the Toll-like receptor 4 (TLR4), an important pro-tumor activator of MSC phenotype associated to a pro-inflammatory behavior. MH2A1.1-TLR4 axis was further investigated in HS-5 stromal cells after ectopic mH2A1.1 overexpression (mH2A1.1-OE). Proteomic data confirmed the activation of a pro-inflammatory signature associated to TLR4 and nuclear factor kappa B (NFkB) activation. Moreover, mH2A1.1-OE proteomic profile identified several upregulated proteins associated to DNA and histones hypermethylation, including S-adenosylhomocysteine hydrolase, a strong inhibitor of DNA methyltransferase and of the methyl donor S-adenosyl-methionine (SAM). HPLC analysis confirmed higher SAM/SAH ratio along with a metabolic reprogramming. Interestingly, an increased LDHA nuclear localization was detected both in mH2A1.1-OE cells and MDS-MSCs, probably depending on MSC inflammatory phenotype. Finally, coculturing healthy mH2A1.1-OE MSCs with CD34+ cells, we found a significant reduction in the number of CD34+ cells, which was reflected in a decreased number of colony forming units (CFU-Cs). These results suggest a key role of mH2A1.1 in driving the crosstalk between epigenetic signaling, inflammation, and cell metabolism networks in MDS-MSCs.
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Affiliation(s)
- C Giallongo
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
| | - I Dulcamare
- Division of Hematology, AOU Policlinico, Catania, Italy
| | - S Giallongo
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy.
| | - A Duminuco
- Division of Hematology, AOU Policlinico, Catania, Italy
| | - D Pieragostino
- Department of Innovative Technologies and Medicine & Odontoiatry, University G. D'Annunzio, Chieti-Pescara, Italy
- Analytical Biochemistry and Proteomics Laboratory, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - M C Cufaro
- Department of Innovative Technologies and Medicine & Odontoiatry, University G. D'Annunzio, Chieti-Pescara, Italy
- Analytical Biochemistry and Proteomics Laboratory, Center for Advanced Studies and Technology (CAST), "G. d'Annunzio" University of Chieti-Pescara, Chieti, Italy
| | - A M Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - G Lazzarino
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Rome, Italy
| | - A Romano
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - N Parrinello
- Division of Hematology, AOU Policlinico, Catania, Italy
| | - M Di Rosa
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - G Broggi
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
| | - R Caltabiano
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
| | - M Caraglia
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - M Scrima
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - L S Pasquale
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - M S Tathode
- Department of Precision Medicine, University of Campania "Luigi Vanvitelli", Naples, Italy
- Laboratory of Precision and Molecular Oncology, Biogem Scarl, Institute of Genetic Research, Ariano Irpino, Italy
| | - G Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy.
| | - R Motterlini
- Faculty of Health, University Paris Est Créteil, INSERM, IMRB, Créteil, France
| | - F Di Raimondo
- Department of General Surgery and Medical-Surgical Specialties, University of Catania, Catania, Italy
| | - D Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - G A Palumbo
- Department of Medical, Surgical Sciences and Advanced Technologies "G.F. Ingrassia", University of Catania, Catania, Italy
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6
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Longhitano L, Distefano A, Amorini AM, Orlando L, Giallongo S, Tibullo D, Lazzarino G, Nicolosi A, Alanazi AM, Saoca C, Macaione V, Aguennouz M, Salomone F, Tropea E, Barbagallo IA, Volti GL, Lazzarino G. (+)-Lipoic Acid Reduces Lipotoxicity and Regulates Mitochondrial Homeostasis and Energy Balance in an In Vitro Model of Liver Steatosis. Int J Mol Sci 2023; 24:14491. [PMID: 37833939 PMCID: PMC10572323 DOI: 10.3390/ijms241914491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/19/2023] [Accepted: 09/20/2023] [Indexed: 10/15/2023] Open
Abstract
Non-alcoholic fatty liver disease (NAFLD) is characterized by the accumulation of lipids within hepatocytes, which compromises liver functionality following mitochondrial dysfunction and increased production of reactive oxygen species (ROS). Lipoic acid is one of the prosthetic groups of the pyruvate dehydrogenase complex also known for its ability to confer protection from oxidative damage because of its antioxidant properties. In this study, we aimed to investigate the effects of lipoic acid on lipotoxicity and mitochondrial dynamics in an in vitro model of liver steatosis. HepG2 cells were treated with palmitic acid and oleic acid (1:2) to induce steatosis, without and with 1 and 5 µM lipoic acid. Following treatments, cell proliferation and lipid droplets accumulation were evaluated. Mitochondrial functions were assessed through the evaluation of membrane potential, MitoTracker Red staining, expression of genes of the mitochondrial quality control, and analysis of energy metabolism by HPLC and Seahorse. We showed that lipoic acid treatment restored membrane potential to values comparable to control cells, as well as protected cells from mitochondrial fragmentation following PA:OA treatment. Furthermore, our data showed that lipoic acid was able to determine an increase in the expression of mitochondrial fusion genes and a decrease in mitochondrial fission genes, as well as to restore the bioenergetics of cells after treatment with palmitic acid and oleic acid. In conclusion, our data suggest that lipoic acid reduces lipotoxicity and improves mitochondrial functions in an in vitro model of steatosis, thus providing a potentially valuable pharmacological tool for NAFLD treatment.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Laura Orlando
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Sebastiano Giallongo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Anna Nicolosi
- Hospital Pharmacy Unit, Ospedale Cannizzaro, 95125 Catania, Italy;
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Concetta Saoca
- Department Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy; (C.S.); (V.M.); (M.A.)
| | - Vincenzo Macaione
- Department Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy; (C.S.); (V.M.); (M.A.)
| | - M’hammed Aguennouz
- Department Clinical and Experimental Medicine, University of Messina, Via Consolare Valeria 1, 98125 Messina, Italy; (C.S.); (V.M.); (M.A.)
| | - Federico Salomone
- Division of Gastroenterology, Ospedale di Acireale, Azienda Sanitaria Provinciale di Catania, 95024 Catania, Italy;
| | - Emanuela Tropea
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Ignazio Alberto Barbagallo
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (L.L.); (A.D.); (A.M.A.); (L.O.); (S.G.); (D.T.); (G.L.); (E.T.); (I.A.B.)
| | - Giacomo Lazzarino
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy;
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Mangione R, Pallisco R, Bilotta G, Marroni F, Di Pietro V, Capoccia E, Lazzarino G, Tavazzi B, Lazzarino G, Bilotta P, Amorini AM. Bilirubin Concentration in Follicular Fluid Is Increased in Infertile Females, Correlates with Decreased Antioxidant Levels and Increased Nitric Oxide Metabolites, and Negatively Affects Outcome Measures of In Vitro Fertilization. Int J Mol Sci 2023; 24:10707. [PMID: 37445884 DOI: 10.3390/ijms241310707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/23/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
In a previous study, we showed that various low-molecular-weight compounds in follicular fluid (FF) samples of control fertile females (CFF) have different concentrations compared to those found in FF of infertile females (IF), before and after their categorization into different subgroups, according to their clinical diagnosis of infertility. Using the same FF samples of this previous study, we here analyzed the FF concentrations of free and bound bilirubin and compared the results obtained in CFF, IF and the different subgroups of IF (endometriosis, EM, polycystic ovary syndrome, PCOS, age-related reduced ovarian reserve, AR-ROR, reduced ovarian reserve, ROR, genetic infertility, GI and unexplained infertility, UI). The results clearly indicated that CFF had lower values of free, bound and total bilirubin compared to the respective values measured in pooled IF. These differences were observed even when IF were categorized into EM, PCOS, AR-ROR, ROR, GI and UI, with EM and PCOS showing the highest values of free, bound and total bilirubin among the six subgroups. Using previous results of ascorbic acid, GSH and nitrite + nitrate measured in the same FF samples of the same FF donors, we found that total bilirubin in FF increased as a function of decreased values of ascorbic acid and GSH, and increased concentrations of nitrite + nitrate. The values of total bilirubin negatively correlated with the clinical parameters of fertilization procedures (number of retrieved oocytes, mature oocytes, fertilized oocytes, blastocysts, high-quality blastocysts) and with clinical pregnancies and birth rates. Bilirubin concentrations in FF were not linked to those found in serum samples of FF donors, thereby strongly suggesting that its over production was due to higher activity of heme oxygenase-1 (HO-1), the key enzyme responsible for bilirubin formation, in granulosa cells, or cumulus cells or oocytes of IF and ultimately leading to bilirubin accumulation in FF. Since increased activity of HO-1 is one of the main enzymatic intracellular mechanisms of defense towards external insults (oxidative/nitrosative stress, inflammation), and since we found correlations among bilirubin and oxidative/nitrosative stress in these FF samples, it may reasonably be supposed that bilirubin increase in FF of IF is the result of protracted exposures to the aforementioned insults evidently playing relevant roles in female infertility.
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Affiliation(s)
- Renata Mangione
- Department of Basic Biotechnological Sciences, Intensive and Perioperative Clinics, Catholic University of Rome, Largo F. Vito 1, 00168 Rome, Italy
| | - Romina Pallisco
- Laboratory of Andrology and Embriology, Alma Res Fertility Center, Via Parenzo 12, 00198 Rome, Italy
| | - Gabriele Bilotta
- Laboratory of Andrology and Embriology, Alma Res Fertility Center, Via Parenzo 12, 00198 Rome, Italy
| | - Francesca Marroni
- Laboratory of Andrology and Embriology, Alma Res Fertility Center, Via Parenzo 12, 00198 Rome, Italy
| | - Valentina Di Pietro
- Neurotrauma and Ophthalmology Research Group, Institute of Inflammation and Aging, University of Birmingham, Birmingham B15 2TT, UK
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TT, UK
| | - Elena Capoccia
- Laboratory of Andrology and Embriology, Alma Res Fertility Center, Via Parenzo 12, 00198 Rome, Italy
| | - Giuseppe Lazzarino
- Division of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
- LTA-Biotech srl, Viale Don Orione 3D, 95047 Paternò, Italy
| | - Barbara Tavazzi
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131 Rome, Italy
| | - Giacomo Lazzarino
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131 Rome, Italy
| | - Pasquale Bilotta
- Service of Obstetrics and Gynecology, Alma Res Fertility Center, Via Parenzo 12, 00198 Rome, Italy
| | - Angela Maria Amorini
- Division of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
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Lazzarino G, Mangione R, Saab MW, Tavazzi B, Pittalà A, Signoretti S, Di Pietro V, Lazzarino G, Amorini AM. Traumatic Brain Injury Alters Cerebral Concentrations and Redox States of Coenzymes Q 9 and Q 10 in the Rat. Antioxidants (Basel) 2023; 12:antiox12050985. [PMID: 37237851 DOI: 10.3390/antiox12050985] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 05/28/2023] Open
Abstract
To date, there is no information on the effect of TBI on the changes in brain CoQ levels and possible variations in its redox state. In this study, we induced graded TBIs (mild TBI, mTBI and severe TBI, sTBI) in male rats, using the weight-drop closed-head impact acceleration model of trauma. At 7 days post-injury, CoQ9, CoQ10 and α-tocopherol were measured by HPLC in brain extracts of the injured rats, as well as in those of a group of control sham-operated rats. In the controls, about the 69% of total CoQ was in the form of CoQ9 and the oxidized/reduced ratios of CoQ9 and CoQ10 were, respectively, 1.05 ± 0.07 and 1.42 ± 0.17. No significant changes in these values were observed in rats experiencing mTBI. Conversely, in the brains of sTBI-injured animals, an increase in reduced and a decrease in oxidized CoQ9 produced an oxidized/reduced ratio of 0.81 ± 0.1 (p < 0.001 compared with both controls and mTBI). A concomitant decrease in both reduced and oxidized CoQ10 generated a corresponding oxidized/reduced ratio of 1.38 ± 0.23 (p < 0.001 compared with both controls and mTBI). An overall decrease in the concentration of the total CoQ pool was also found in sTBI-injured rats (p < 0.001 compared with both controls and mTBI). Concerning α-tocopherol, whilst no differences compared with the controls were found in mTBI animals, a significant decrease was observed in rats experiencing sTBI (p < 0.01 compared with both controls and mTBI). Besides suggesting potentially different functions and intracellular distributions of CoQ9 and CoQ10 in rat brain mitochondria, these results demonstrate, for the first time to the best of knowledge, that sTBI alters the levels and redox states of CoQ9 and CoQ10, thus adding a new explanation to the mitochondrial impairment affecting ETC, OXPHOS, energy supply and antioxidant defenses following sTBI.
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Affiliation(s)
- Giacomo Lazzarino
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131 Rome, Italy
| | - Renata Mangione
- Department of Basic Biotechnological Sciences, Intensive and Perioperative Clinics, Catholic University of the Sacred Heart of Rome, Largo F. Vito 1, 00168 Rome, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Barbara Tavazzi
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131 Rome, Italy
| | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Stefano Signoretti
- Departmental Faculty of Medicine and Surgery, UniCamillus-Saint Camillus International University of Health and Medical Sciences, Via di Sant'Alessandro 8, 00131 Rome, Italy
- Department of Emergency and Urgency, Division of Neurosurgery, S. Eugenio/CTO Hospital, A.S.L. Roma2 Piazzale dell'Umanesimo 10, 00144 Rome, Italy
| | - Valentina Di Pietro
- Neurotrauma and Ophthalmology Research Group, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
- National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, Birmingham B15 2TH, UK
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
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Privitera A, Cardaci V, Weerasekara D, Saab MW, Diolosà L, Fidilio A, Jolivet RB, Lazzarino G, Amorini AM, Camarda M, Lunte SM, Caraci F, Caruso G. Microfluidic/HPLC combination to study carnosine protective activity on challenged human microglia: Focus on oxidative stress and energy metabolism. Front Pharmacol 2023; 14:1161794. [PMID: 37063279 PMCID: PMC10095171 DOI: 10.3389/fphar.2023.1161794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Accepted: 03/03/2023] [Indexed: 03/31/2023] Open
Abstract
Carnosine (β-alanyl-L-histidine) is a naturally occurring endogenous peptide widely distributed in excitable tissues such as the brain. This dipeptide possesses well-demonstrated antioxidant, anti-inflammatory, and anti-aggregation properties, and it may be useful for treatment of pathologies characterized by oxidative stress and energy unbalance such as depression and Alzheimer's disease (AD). Microglia, the brain-resident macrophages, are involved in different physiological brain activities such synaptic plasticity and neurogenesis, but their dysregulation has been linked to the pathogenesis of numerous diseases. In AD brain, the activation of microglia towards a pro-oxidant and pro-inflammatory phenotype has found in an early phase of cognitive decline, reason why new pharmacological targets related to microglia activation are of great importance to develop innovative therapeutic strategies. In particular, microglia represent a common model of lipopolysaccharides (LPS)-induced activation to identify novel pharmacological targets for depression and AD and numerous studies have linked the impairment of energy metabolism, including ATP dyshomeostasis, to the onset of depressive episodes. In the present study, we first investigated the toxic potential of LPS + ATP in the absence or presence of carnosine. Our studies were carried out on human microglia (HMC3 cell line) in which LPS + ATP combination has shown the ability to promote cell death, oxidative stress, and inflammation. Additionally, to shed more light on the molecular mechanisms underlying the protective effect of carnosine, its ability to modulate reactive oxygen species production and the variation of parameters representative of cellular energy metabolism was evaluated by microchip electrophoresis coupled to laser-induced fluorescence and high performance liquid chromatography, respectively. In our experimental conditions, carnosine prevented LPS + ATP-induced cell death and oxidative stress, also completely restoring basal energy metabolism in human HMC3 microglia. Our results suggest a therapeutic potential of carnosine as a new pharmacological tool in the context of multifactorial disorders characterize by neuroinflammatory phenomena including depression and AD.
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Affiliation(s)
- Anna Privitera
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Vincenzo Cardaci
- Vita-Salute San Raffaele University, Milano, Italy
- Scuola Superiore di Catania, University of Catania, Catania, Italy
| | - Dhanushka Weerasekara
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, United States
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Lidia Diolosà
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
| | - Annamaria Fidilio
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
| | - Renaud Blaise Jolivet
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, Maastricht, Netherlands
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | | | - Susan Marie Lunte
- Ralph N. Adams Institute for Bioanalytical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, United States
- Department of Chemistry, University of Kansas, Lawrence, KS, United States
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
| | - Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, Troina, Italy
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Magrì A, Cubisino SAM, Battiato G, Lipari CLR, Conti Nibali S, Saab MW, Pittalà A, Amorini AM, De Pinto V, Messina A. VDAC1 Knockout Affects Mitochondrial Oxygen Consumption Triggering a Rearrangement of ETC by Impacting on Complex I Activity. Int J Mol Sci 2023; 24:ijms24043687. [PMID: 36835102 PMCID: PMC9963415 DOI: 10.3390/ijms24043687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/04/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023] Open
Abstract
Voltage-Dependent Anion-selective Channel isoform 1 (VDAC1) is the most abundant isoform of the outer mitochondrial membrane (OMM) porins and the principal gate for ions and metabolites to and from the organelle. VDAC1 is also involved in a number of additional functions, such as the regulation of apoptosis. Although the protein is not directly involved in mitochondrial respiration, its deletion in yeast triggers a complete rewiring of the whole cell metabolism, with the inactivation of the main mitochondrial functions. In this work, we analyzed in detail the impact of VDAC1 knockout on mitochondrial respiration in the near-haploid human cell line HAP1. Results indicate that, despite the presence of other VDAC isoforms in the cell, the inactivation of VDAC1 correlates with a dramatic impairment in oxygen consumption and a re-organization of the relative contributions of the electron transport chain (ETC) enzymes. Precisely, in VDAC1 knockout HAP1 cells, the complex I-linked respiration (N-pathway) is increased by drawing resources from respiratory reserves. Overall, the data reported here strengthen the key role of VDAC1 as a general regulator of mitochondrial metabolism.
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Affiliation(s)
- Andrea Magrì
- Department of Biological, Geological and Environmental Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
- Correspondence:
| | | | - Giuseppe Battiato
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Cristiana Lucia Rita Lipari
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Stefano Conti Nibali
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Vito De Pinto
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
| | - Angela Messina
- Department of Biological, Geological and Environmental Sciences, University of Catania, Via S. Sofia 64, 95125 Catania, Italy
- we.MitoBiotech S.R.L., C.so Italia 174, 95125 Catania, Italy
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Caruso G, Privitera A, Saab MW, Musso N, Maugeri S, Fidilio A, Privitera AP, Pittalà A, Jolivet RB, Lanzanò L, Lazzarino G, Caraci F, Amorini AM. Characterization of Carnosine Effect on Human Microglial Cells under Basal Conditions. Biomedicines 2023; 11:biomedicines11020474. [PMID: 36831010 PMCID: PMC9953171 DOI: 10.3390/biomedicines11020474] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 01/28/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023] Open
Abstract
The activity of microglia is fundamental for the regulation of numerous physiological processes including brain development, synaptic plasticity, and neurogenesis, and its deviation from homeostasis can lead to pathological conditions, including numerous neurodegenerative disorders. Carnosine is a naturally occurring molecule with well-characterized antioxidant and anti-inflammatory activities, able to modulate the response and polarization of immune cells and ameliorate their cellular energy metabolism. The better understanding of microglia characteristics under basal physiological conditions, as well as the possible modulation of the mechanisms related to its response to environmental challenges and/or pro-inflammatory/pro-oxidant stimuli, are of utmost importance for the development of therapeutic strategies. In the present study, we assessed the activity of carnosine on human HMC3 microglial cells, first investigating the effects of increasing concentrations of carnosine on cell viability. When used at a concentration of 20 mM, carnosine led to a decrease of cell viability, paralleled by gene expression increase and decrease, respectively, of interleukin 6 and heme oxygenase 1. When using the maximal non-toxic concentration (10 mM), carnosine decreased nitric oxide bioavailability, with no changes in the intracellular levels of superoxide ion. The characterization of energy metabolism of HMC3 microglial cells under basal conditions, never reported before, demonstrated that it is mainly based on mitochondrial oxidative metabolism, paralleled by a high rate of biosynthetic reactions. The exposure of HMC3 cells to carnosine seems to ameliorate microglia energy state, as indicated by the increase in the adenosine triphosphate/adenosine diphosphate (ATP/ADP) ratio and energy charge potential. The improvement of cell energy metabolism mediated by 10 mM carnosine could represent a useful protective weapon in the case of human microglia undergoing stressing conditions.
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Affiliation(s)
- Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
- Correspondence: ; Tel.: +39-0957385036
| | - Anna Privitera
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Nicolò Musso
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Salvatore Maugeri
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
| | - Annamaria Fidilio
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
| | | | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Renaud Blaise Jolivet
- Maastricht Centre for Systems Biology (MaCSBio), Maastricht University, 6200 MD Maastricht, The Netherlands
| | - Luca Lanzanò
- Department of Physics and Astronomy “Ettore Majorana”, University of Catania, 95123 Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy
| | - Filippo Caraci
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
- Unit of Neuropharmacology and Translational Neurosciences, Oasi Research Institute-IRCCS, 94018 Troina, Italy
| | - Angela Maria Amorini
- Department of Drug and Health Sciences, University of Catania, 95125 Catania, Italy
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12
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Pallisco R, Lazzarino G, Bilotta G, Marroni F, Mangione R, Saab MW, Brundo MV, Pittalà A, Caruso G, Capoccia E, Lazzarino G, Tavazzi B, Bilotta P, Amorini AM. Metabolic Signature of Energy Metabolism Alterations and Excess Nitric Oxide Production in Culture Media Correlate with Low Human Embryo Quality and Unsuccessful Pregnancy. Int J Mol Sci 2023; 24:ijms24010890. [PMID: 36614333 PMCID: PMC9821643 DOI: 10.3390/ijms24010890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 12/20/2022] [Accepted: 12/28/2022] [Indexed: 01/06/2023] Open
Abstract
Notwithstanding the great improvement of ART, the overall rate of successful pregnancies from implanted human embryos is definitely low. The current routine embryo quality assessment is performed only through morphological criteria, which has poor predictive capacity since only a minor percentage of those in the highest class give rise to successful pregnancy. Previous studies highlighted the potentiality of the analysis of metabolites in human embryo culture media, useful for the selection of embryos for implantation. In the present study, we analyzed in blind 66 human embryo culture media at 5 days after in vitro fertilization with the aim of quantifying compounds released by cell metabolism that were not present as normal constituents of the human embryo growth media, including purines, pyrimidines, nitrite, and nitrate. Only some purines were detectable (hypoxanthine and uric acid) in the majority of samples, while nitrite and nitrate were always detectable. When matching biochemical results with morphological evaluation, it was found that low grade embryos (n = 12) had significantly higher levels of all the compounds of interest. Moreover, when matching biochemical results according to successful (n = 17) or unsuccessful (n = 25) pregnancy, it was found that human embryos from the latter group released higher concentrations of hypoxanthine, uric acid, nitrite, and nitrate in the culture media. Additionally, those embryos that developed into successful pregnancies were all associated with the birth of healthy newborns. These results, although carried out on a relatively low number of samples, indicate that the analysis of the aforementioned compounds in the culture media of human embryos is a potentially useful tool for the selection of embryos for implantation, possibly leading to an increase in the overall rate of ART.
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Affiliation(s)
- Romina Pallisco
- Alma Res Fertility Center, Laboratory of Andrology and Embriology, Via Parenzo 12, 00198 Rome, Italy
| | - Giacomo Lazzarino
- Departmental Faculty of Medicine and Surgery, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
| | - Gabriele Bilotta
- Departmental Faculty of Medicine and Surgery, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
| | - Francesca Marroni
- Departmental Faculty of Medicine and Surgery, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
| | - Renata Mangione
- Department of Basic Biotechnological Sciences, Intensive and Perioperative Clinics, Catholic University of Rome, Largo F. Vito 1, 00168 Rome, Italy
| | - Miriam Wissam Saab
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Maria Violetta Brundo
- Department of Biology, Geology and Environmental Sciences, Section of Animal Biology, University of Catania, Via Androne 81, 95124 Catania, Italy
| | - Alessandra Pittalà
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
| | - Giuseppe Caruso
- Department of Drug and Health Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
| | - Elena Capoccia
- Departmental Faculty of Medicine and Surgery, UniCamillus—Saint Camillus International University of Health and Medical Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
- LTA-Biotech srl, Viale Don Orione 3D, 95047 Paternò, Italy
- Correspondence:
| | - Barbara Tavazzi
- Alma Res Fertility Center, Laboratory of Andrology and Embriology, Via Parenzo 12, 00198 Rome, Italy
| | - Pasquale Bilotta
- Alma Res Fertility Center, Obstetrics and Gynecology, Via Parenzo 12, 00198 Rome, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S. Sofia 97, 95123 Catania, Italy
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Longhitano L, Distefano A, Murabito P, Astuto M, Nicolosi A, Buscema G, Sanfilippo F, Lazzarino G, Amorini AM, Bruni A, Garofalo E, Tibullo D, Volti GL. Propofol and α2-Agonists Attenuate Microglia Activation and Restore Mitochondrial Function in an In Vitro Model of Microglia Hypoxia/Reoxygenation. Antioxidants (Basel) 2022; 11:antiox11091682. [PMID: 36139756 PMCID: PMC9495359 DOI: 10.3390/antiox11091682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 08/20/2022] [Accepted: 08/25/2022] [Indexed: 11/16/2022] Open
Abstract
Cerebrovascular ischemia is a common clinical disease encompassing a series of complex pathophysiological processes in which oxidative stress plays a major role. The present study aimed to evaluate the effects of Dexmedetomidine, Clonidine, and Propofol in a model of hypoxia/reoxygenation injury. Microglial cells were exposed to 1%hypoxia for 3 h and reoxygenated for 3 h, and oxidative stress was measured by ROS formation and the expression of inflammatory process genes. Mitochondrial dysfunction was assessed by membrane potential maintenance and the levels of various metabolites involved in energetic metabolism. The results showed that Propofol and α2-agonists attenuate the formation of ROS during hypoxia and after reoxygenation. Furthermore, the α2-agonists treatment restored membrane potential to values comparable to the normoxic control and were both more effective than Propofol. At the same time, Propofol, but not α2-agonists, reduces proliferation (Untreated Hypoxia = 1.16 ± 0.2, Untreated 3 h Reoxygenation = 1.28 ± 0.01 vs. Propofol hypoxia = 1.01 ± 0.01 vs. Propofol 3 h Reoxygenation = 1.12 ± 0.03) and microglial migration. Interestingly, all of the treatments reduced inflammatory gene and protein expressions and restored energy metabolism following hypoxia/reoxygenation (ATP content in hypoxia/reoxygenation 3 h: Untreated = 3.11 ± 0.8 vs. Propofol = 7.03 ± 0.4 vs. Dexmedetomidine = 5.44 ± 0.8 vs. Clonidine = 7.70 ± 0.1), showing that the drugs resulted in a different neuroprotective profile. In conclusion, our results may provide clinically relevant insights for neuroprotective strategies in intensive care units.
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Affiliation(s)
- Lucia Longhitano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Alfio Distefano
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Paolo Murabito
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Marinella Astuto
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Anna Nicolosi
- Azienda Ospedaliera “Cannizzaro”, Via Messina 628, 95126 Catania, Italy
| | - Giovanni Buscema
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Filippo Sanfilippo
- Unità Operativa Complessa Anestesia e Rianimazione 2, Azienda Universitaria “Policlinico G. Rodolico” Via S. Sofia 97, 95125 Catania, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Andrea Bruni
- Anesthesia and Intesive Care Unit, Department of Medical and Surgical Sciences, University Hospital Mater Domini, Magna Grecia University, 88100 Catanzaro, Italy
| | - Eugenio Garofalo
- Anesthesia and Intesive Care Unit, Department of Medical and Surgical Sciences, University Hospital Mater Domini, Magna Grecia University, 88100 Catanzaro, Italy
| | - Daniele Tibullo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
| | - Giovanni Li Volti
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via S. Sofia 97, 95125 Catania, Italy
- Correspondence:
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14
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Giallongo C, Tibullo D, Puglisi F, Barbato A, Vicario N, Cambria D, Parrinello NL, Romano A, Conticello C, Forte S, Parenti R, Amorini AM, Lazzarino G, Li Volti G, Palumbo GA, Di Raimondo F. Inhibition of TLR4 Signaling Affects Mitochondrial Fitness and Overcomes Bortezomib Resistance in Myeloma Plasma Cells. Cancers (Basel) 2020; 12:cancers12081999. [PMID: 32707760 PMCID: PMC7463509 DOI: 10.3390/cancers12081999] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/02/2020] [Accepted: 07/18/2020] [Indexed: 12/14/2022] Open
Abstract
Multiple myeloma (MM) is a B-cell malignancy requiring inflammatory microenvironment signals for cell survival and proliferation. Despite improvements in pharmacological tools, MM remains incurable mainly because of drug resistance. The present study aimed to investigate the implication of Toll-like receptor 4 (TLR4) as the potential mechanism of bortezomib (BTZ) resistance. We found that TLR4 activation induced mitochondrial biogenesis and increased mitochondrial mass in human MM cell lines. Moreover, TLR4 signaling was activated after BTZ exposure and was increased in BTZ-resistant U266 (U266-R) cells. A combination of BTZ with TAK-242, a selective TLR4 inhibitor, overcame drug resistance through the generation of higher and extended oxidative stress, strong mitochondrial depolarization and severe impairment of mitochondrial fitness which in turn caused cell energy crisis and activated mitophagy and apoptosis. We further confirmed the efficacy of a TAK-242/BTZ combination in plasma cells from refractory myeloma patients. Consistently, inhibition of TLR4 increased BTZ-induced mitochondrial depolarization, restoring pharmacological response. Taken together, these findings indicate that TLR4 signaling acts as a stress-responsive mechanism protecting mitochondria during BTZ exposure, sustaining mitochondrial metabolism and promoting drug resistance. Inhibition of TLR4 could be therefore be a possible target in patients with refractory MM to overcome BTZ resistance.
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Affiliation(s)
- Cesarina Giallongo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Correspondence: (C.G.); (G.L.V.)
| | - Daniele Tibullo
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Fabrizio Puglisi
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Alessandro Barbato
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Nunzio Vicario
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (N.V.); (R.P.)
| | - Daniela Cambria
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Nunziatina Laura Parrinello
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Alessandra Romano
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Concetta Conticello
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Stefano Forte
- Fondazione “Istituto Oncologico del Mediterraneo”, 95029 Catania, Italy;
| | - Rosalba Parenti
- Section of Physiology, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (N.V.); (R.P.)
| | - Angela Maria Amorini
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Giuseppe Lazzarino
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
| | - Giovanni Li Volti
- Section of Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, 95123 Catania, Italy; (D.T.); (A.M.A.); (G.L.)
- Correspondence: (C.G.); (G.L.V.)
| | - Giuseppe Alberto Palumbo
- Department of Medical and Surgical Sciences and Advanced Technologies “G.F. Ingrassia”, University of Catania, 95123 Catania, Italy;
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
| | - Francesco Di Raimondo
- Division of Hematology, Azienda Ospedaliero Universitaria, Policlinico Vittorio Emanuele, 95123 Catania, Italy; (F.P.); (A.B.); (D.C.); (N.L.P.); (A.R.); (C.C.); (F.D.R.)
- Division of Hematology, Department of General Surgery and Medical-Surgical Specialties, University of Catania, 95123 Catania, Italy
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15
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Di Pietro V, Yakoub KM, Caruso G, Lazzarino G, Signoretti S, Barbey AK, Tavazzi B, Lazzarino G, Belli A, Amorini AM. Antioxidant Therapies in Traumatic Brain Injury. Antioxidants (Basel) 2020; 9:antiox9030260. [PMID: 32235799 PMCID: PMC7139349 DOI: 10.3390/antiox9030260] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/14/2020] [Accepted: 03/20/2020] [Indexed: 02/08/2023] Open
Abstract
Due to a multiplicity of causes provoking traumatic brain injury (TBI), TBI is a highly heterogeneous pathology, characterized by high mortality and disability rates. TBI is an acute neurodegenerative event, potentially and unpredictably evolving into sub-chronic and chronic neurodegenerative events, with transient or permanent neurologic, cognitive, and motor deficits, for which no valid standardized therapies are available. A vast body of literature demonstrates that TBI-induced oxidative/nitrosative stress is involved in the development of both acute and chronic neurodegenerative disorders. Cellular defenses against this phenomenon are largely dependent on low molecular weight antioxidants, most of which are consumed with diet or as nutraceutical supplements. A large number of studies have evaluated the efficacy of antioxidant administration to decrease TBI-associated damage in various animal TBI models and in a limited number of clinical trials. Points of weakness of preclinical studies are represented by the large variability in the TBI model adopted, in the antioxidant tested, in the timing, dosages, and routes of administration used, and in the variety of molecular and/or neurocognitive parameters evaluated. The analysis of the very few clinical studies does not allow strong conclusions to be drawn on the real effectiveness of antioxidant administration to TBI patients. Standardizing TBI models and different experimental conditions, as well as testing the efficacy of administration of a cocktail of antioxidants rather than only one, should be mandatory. According to some promising clinical results, it appears that sports-related concussion is probably the best type of TBI to test the benefits of antioxidant administration.
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Affiliation(s)
- Valentina Di Pietro
- Neurotrauma and Ophthalmology Research Group, Institute of Inflammation and Aging, University of Birmingham, Birmingham B15 2TT, UK; (V.D.P.); (K.M.Y.)
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TT, UK
- The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, Champaign, IL 61801, USA;
| | - Kamal M. Yakoub
- Neurotrauma and Ophthalmology Research Group, Institute of Inflammation and Aging, University of Birmingham, Birmingham B15 2TT, UK; (V.D.P.); (K.M.Y.)
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TT, UK
| | - Giuseppe Caruso
- Department of Laboratories, Oasi Research Institute – IRCCS, Via Conte Ruggero 73, 94018 Troina (EN), Italy;
| | - Giacomo Lazzarino
- UniCamillus, Saint Camillus International University of Health Sciences, Via di Sant’Alessandro 8, 00131 Rome, Italy;
| | - Stefano Signoretti
- UOC Neurochirurgia, ASL Roma2, S. Eugenio Hospital, Piazzale dell’Umanesimo 10, 00144 Rome, Italy;
| | - Aron K. Barbey
- The Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana Champaign, Champaign, IL 61801, USA;
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F.Vito 1, 00168 Rome, Italy
- Department of Scienze di laboratorio e infettivologiche, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, 00168 Rome, Italy
- Correspondence: (B.T.); (G.L.); (A.B.)
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S.Sofia 97, 95123 Catania, Italy;
- Correspondence: (B.T.); (G.L.); (A.B.)
| | - Antonio Belli
- Neurotrauma and Ophthalmology Research Group, Institute of Inflammation and Aging, University of Birmingham, Birmingham B15 2TT, UK; (V.D.P.); (K.M.Y.)
- NIHR Surgical Reconstruction and Microbiology Research Centre, University Hospitals Birmingham NHS Foundation Trust, Birmingham B15 2TT, UK
- Correspondence: (B.T.); (G.L.); (A.B.)
| | - Angela Maria Amorini
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Via S.Sofia 97, 95123 Catania, Italy;
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16
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Tamburrano A, Tavazzi B, Callà CAM, Amorini AM, Lazzarino G, Vincenti S, Zottola T, Campagna MC, Moscato U, Laurenti P. Biochemical and nutritional characteristics of buffalo meat and potential implications on human health for a personalized nutrition. Ital J Food Saf 2019; 8:8317. [PMID: 31632933 PMCID: PMC6784592 DOI: 10.4081/ijfs.2019.8317] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/28/2019] [Indexed: 11/22/2022] Open
Abstract
The human consumption of food animal products is the main topic of an important debate among professionals in this sector: dietologists, dietitians and nutritional biologists. The red meat provides all the essential amino acids, bioavailable iron, zinc, calcium, lipids and B-group vitamins. A valid alternative to beef could be the buffalo meat. Italy is the largest European producer of buffalo meat and derivatives. The high nutritional characteristics of buffalo meat make it suitable to be included in the Mediterranean diet to customize it in relation to the needs and conditions of the population. Polyunsaturated/saturated fatty acids ratio can be influenced by diet, breed and type of breeding, but muscle tissue fat percentage is the main factor in determining a favorable fatty acid composition. This review focuses on the biochemical and nutritional characteristics of the buffalo meat (content of fats, cholesterol, amino acids, vitamins and minerals), explaining their variability depending on the different breeds, and the favorable implications on the human health. These results suggest that buffalo meat can be a healthier alternative to beef, not only for healthy people in particular physiological conditions (i.e. pregnancy), but also for persons at risk for cardiovascular and cerebrovascular diseases, thus achieving the goal of a personalized nutrition.
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Affiliation(s)
| | - Barbara Tavazzi
- Università Cattolica del Sacro Cuore, Rome
- University Hospital A. Gemelli - IRCCS, Rome
| | | | | | | | | | - Tiziana Zottola
- Experimental Zooprophylactic Institute of Lazio e Toscana “M. Aleandri", Latina, Italy
| | | | - Umberto Moscato
- Università Cattolica del Sacro Cuore, Rome
- University Hospital A. Gemelli - IRCCS, Rome
| | - Patrizia Laurenti
- Università Cattolica del Sacro Cuore, Rome
- University Hospital A. Gemelli - IRCCS, Rome
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17
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Lazzarino G, Listorti I, Muzii L, Amorini AM, Longo S, Di Stasio E, Caruso G, D’Urso S, Puglia I, Pisani G, Lazzarino G, Tavazzi B, Bilotta P. Low-molecular weight compounds in human seminal plasma as potential biomarkers of male infertility. Hum Reprod 2018; 33:1817-1828. [DOI: 10.1093/humrep/dey279] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Accepted: 08/22/2018] [Indexed: 12/13/2022] Open
Affiliation(s)
- Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, and Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, Rome, Italy
| | - Ilaria Listorti
- Alma Res Fertility Centre, Centro di Fecondazione Assistita Alma Res, Via Parenzo 12, Rome, Italy
| | - Luigi Muzii
- Alma Res Fertility Centre, Centro di Fecondazione Assistita Alma Res, Via Parenzo 12, Rome, Italy
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, and Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, Rome, Italy
| | - Salvatore Longo
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, and Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, Rome, Italy
- LTA-Biotech srl, Viale Don Orione, 3D, Paternò, Catania, Italy
| | - Enrico Di Stasio
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, and Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, Rome, Italy
| | - Giuseppe Caruso
- Oasi Research Institute—IRCCS, Via Conte Ruggero, 73, Troina, Enna, Italy
| | - Serafina D’Urso
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Viale A. Doria 6, Catania, Italy
| | - Ilaria Puglia
- Faculty of Biosciences and Agro-Food and Environmental Technologies, University of Teramo, Via R. Balzarini 1, Teramo, Italy
| | - Giuseppe Pisani
- Department of Obstetrics and Gynecology, Azienda Ospedaliera S. Camillo-Forlanini, Cir.ne Gianicolense 87, Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Viale A. Doria 6, Catania, Italy
- LTA-Biotech srl, Viale Don Orione, 3D, Paternò, Catania, Italy
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, and Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo A. Gemelli 8, Rome, Italy
| | - Pasquale Bilotta
- Alma Res Fertility Centre, Centro di Fecondazione Assistita Alma Res, Via Parenzo 12, Rome, Italy
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18
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Lazzarino G, Longo S, Amorini AM, Di Pietro V, D’Urso S, Lazzarino G, Belli A, Tavazzi B. Single-step preparation of selected biological fluids for the high performance liquid chromatographic analysis of fat-soluble vitamins and antioxidants. J Chromatogr A 2017; 1527:43-52. [DOI: 10.1016/j.chroma.2017.10.053] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/26/2017] [Accepted: 10/22/2017] [Indexed: 10/18/2022]
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19
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Di Pietro V, Lazzarino G, Amorini AM, Signoretti S, Hill LJ, Porto E, Tavazzi B, Lazzarino G, Belli A. Fusion or Fission: The Destiny of Mitochondria In Traumatic Brain Injury of Different Severities. Sci Rep 2017; 7:9189. [PMID: 28835707 PMCID: PMC5569027 DOI: 10.1038/s41598-017-09587-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 07/27/2017] [Indexed: 12/18/2022] Open
Abstract
Mitochondrial dynamics are regulated by a complex system of proteins representing the mitochondrial quality control (MQC). MQC balances antagonistic forces of fusion and fission determining mitochondrial and cell fates. In several neurological disorders, dysfunctional mitochondria show significant changes in gene and protein expression of the MQC and contribute to the pathophysiological mechanisms of cell damage. In this study, we evaluated the main gene and protein expression involved in the MQC in rats receiving traumatic brain injury (TBI) of different severities. At 6, 24, 48 and 120 hours after mild TBI (mTBI) or severe TBI (sTBI), gene and protein expressions of fusion and fission were measured in brain tissue homogenates. Compared to intact brain controls, results showed that genes and proteins inducing fusion or fission were upregulated and downregulated, respectively, in mTBI, but downregulated and upregulated, respectively, in sTBI. In particular, OPA1, regulating inner membrane dynamics, cristae remodelling, oxidative phosphorylation, was post-translationally cleaved generating differential amounts of long and short OPA1 in mTBI and sTBI. Corroborated by data referring to citrate synthase, these results confirm the transitory (mTBI) or permanent (sTBI) mitochondrial dysfunction, enhancing MQC importance to maintain cell functions and indicating in OPA1 an attractive potential therapeutic target for TBI.
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Affiliation(s)
- Valentina Di Pietro
- Neuroscience and Ophthalmology Research Group, Institute of Inflammation and Ageing, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, B15 2TH, Birmingham, UK
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168, Rome, Italy
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168, Rome, Italy
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences Head and Neck Surgery, S. Camillo Hospital, Circonvallazione Gianicolense 87, 00152, Rome, Italy
| | - Lisa J Hill
- Neuroscience and Ophthalmology Research Group, Institute of Inflammation and Ageing, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, B15 2TH, Birmingham, UK
| | - Edoardo Porto
- Neuroscience and Ophthalmology Research Group, Institute of Inflammation and Ageing, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168, Rome, Italy.
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Viale A. Doria 6, 95125, Catania, Italy.
| | - Antonio Belli
- Neuroscience and Ophthalmology Research Group, Institute of Inflammation and Ageing, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, B15 2TH, Birmingham, UK
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Macchiaiolo M, Barresi S, Cecconi F, Zanni G, Niceta M, Bellacchio E, Lazzarino G, Amorini AM, Bertini ES, Rizza S, Contardi B, Tartaglia M, Bartuli A. A mild form of adenylosuccinate lyase deficiency in absence of typical brain MRI features diagnosed by whole exome sequencing. Ital J Pediatr 2017; 43:65. [PMID: 28768552 PMCID: PMC5541734 DOI: 10.1186/s13052-017-0383-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 07/28/2017] [Indexed: 08/24/2023] Open
Abstract
Background Adenylosuccinate lyase (ADSL) deficiency is a defect of purine metabolism affecting purinosome assembly and reducing metabolite fluxes through purine de novo synthesis and purine nucleotide recycling pathways. The disorder shows a wide spectrum of symptoms from slowly to rapidly progressing forms. The most severe form is characterized by neonatal encephalopathy, absence of spontaneous movement, respiratory failure, intractable seizures, and early death within the first weeks of life. More commonly, ADSL presents purely neurologic clinical picture characterized by severe psychomotor retardation, microcephaly, early onset of seizures, and autistic features (type I) or a more slowly progressing form with later onset, and major features including slight to moderate psychomotor retardation, and transient contact disturbances (type II). Diagnostic markers are the presence of succinylaminoimidazole carboxamide riboside (SAICAr) and succinyladenosine (SAdo) in extracellular fluids. ADSL is a rare disorder, although its prevalence remains unknown. Of note, the wide range of essentially nonspecific manifestations and lack of awareness of the condition often prevent diagnosis. Case presentation We present here the case of particularly mild, late onset ADSL that has been unsuccessfully investigated until whole exome sequencing (WES) was performed. Conclusions Besides emphasizing the valuable diagnostic value of WES, this report provides new data further documenting the relatively wide clinical manifestation of ADSL. Electronic supplementary material The online version of this article (doi:10.1186/s13052-017-0383-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Marina Macchiaiolo
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy.
| | - Sabina Barresi
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Francesco Cecconi
- Unit of Cell Stress and Survival Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Ginevra Zanni
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Marcello Niceta
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Emanuele Bellacchio
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Enrico Silvio Bertini
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Salvatore Rizza
- Unit of Cell Stress and Survival Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Benedetta Contardi
- Pharmacist Mother of a Patient affected by Adenylosuccinate lyase deficiency, Rome, Italy
| | - Marco Tartaglia
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
| | - Andrea Bartuli
- Genetics and Rare Diseases, Research Division, Bambino Gesù Children's Hospital, Piazza Sant'Onofrio 4, 00164, Rome, Italy
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21
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Amorini AM, Lazzarino G, Di Pietro V, Signoretti S, Lazzarino G, Belli A, Tavazzi B. Severity of experimental traumatic brain injury modulates changes in concentrations of cerebral free amino acids. J Cell Mol Med 2016; 21:530-542. [PMID: 27696676 PMCID: PMC5323875 DOI: 10.1111/jcmm.12998] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Accepted: 08/26/2016] [Indexed: 12/29/2022] Open
Abstract
In this study, concentrations of free amino acids (FAA) and amino group containing compounds (AGCC) following graded diffuse traumatic brain injury (mild TBI, mTBI; severe TBI, sTBI) were evaluated. After 6, 12, 24, 48 and 120 hr aspartate (Asp), glutamate (Glu), asparagine (Asn), serine (Ser), glutamine (Gln), histidine (His), glycine (Gly), threonine (Thr), citrulline (Cit), arginine (Arg), alanine (Ala), taurine (Tau), γ‐aminobutyrate (GABA), tyrosine (Tyr), S‐adenosylhomocysteine (SAH), l‐cystathionine (l‐Cystat), valine (Val), methionine (Met), tryptophane (Trp), phenylalanine (Phe), isoleucine (Ile), leucine (Leu), ornithine (Orn), lysine (Lys), plus N‐acetylaspartate (NAA) were determined in whole brain extracts (n = 6 rats at each time for both TBI levels). Sham‐operated animals (n = 6) were used as controls. Results demonstrated that mTBI caused modest, transient changes in NAA, Asp, GABA, Gly, Arg. Following sTBI, animals showed profound, long‐lasting modifications of Glu, Gln, NAA, Asp, GABA, Ser, Gly, Ala, Arg, Citr, Tau, Met, SAH, l‐Cystat, Tyr and Phe. Increase in Glu and Gln, depletion of NAA and Asp increase, suggested a link between NAA hydrolysis and excitotoxicity after sTBI. Additionally, sTBI rats showed net imbalances of the Glu‐Gln/GABA cycle between neurons and astrocytes, and of the methyl‐cycle (demonstrated by decrease in Met, and increase in SAH and l‐Cystat), throughout the post‐injury period. Besides evidencing new potential targets for novel pharmacological treatments, these results suggest that the force acting on the brain tissue at the time of the impact is the main determinant of the reactions ignited and involving amino acid metabolism.
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Affiliation(s)
- Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Valentina Di Pietro
- Neuroscience and Ophthalmology group, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences Head and Neck Surgery, S. Camillo Hospital, Rome, Italy
| | - Giuseppe Lazzarino
- Division of Medical Biochemistry, Department of Biomedical and Biotechnological Sciences, University of Catania, Catania, Italy
| | - Antonio Belli
- Neuroscience and Ophthalmology group, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK.,National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Birmingham, UK
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
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22
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Amorini AM, Lazzarino G, Di Pietro V, Signoretti S, Lazzarino G, Belli A, Tavazzi B. Metabolic, enzymatic and gene involvement in cerebral glucose dysmetabolism after traumatic brain injury. Biochim Biophys Acta Mol Basis Dis 2016; 1862:679-687. [PMID: 26844378 DOI: 10.1016/j.bbadis.2016.01.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Accepted: 01/29/2016] [Indexed: 12/16/2022]
Abstract
In this study, the metabolic, enzymatic and gene changes causing cerebral glucose dysmetabolism following graded diffuse traumatic brain injury (TBI) were evaluated. TBI was induced in rats by dropping 450g from 1 (mild TBI; mTBI) or 2m height (severe TBI; sTBI). After 6, 12, 24, 48, and 120h gene expressions and enzymatic activities of glycolysis and pentose phosphate pathway (PPP) enzymes, and levels of lactate, ATP, ADP, ATP/ADP (indexing mitochondrial phosphorylating capacity), NADP(+), NADPH and GSH were determined in whole brain extracts (n=9 rats at each time for both TBI levels). Sham-operated animals (n=9) were used as controls. Results demonstrated that mTBI caused a late increase (48-120h post injury) of glycolytic gene expression and enzymatic activities, concomitantly with mitochondrial functional recovery (ATP and ATP/ADP normalization). No changes in lactate and PPP genes and enzymes, were accompanied by transient decrease in GSH, NADP(+), NADPH and NADPH/NADP(+). Animals following sTBI showed early increase (6-24h post injury) of glycolytic gene expression and enzymatic activities, occurring during mitochondrial malfunctioning (50% decrease in ATP and ATP/ADP). Higher lactate and lower GSH, NADP(+), NADPH, NADPH/NADP(+) than controls were recorded at anytime post injury (p<0.01). Both TBI levels caused metabolic and gene changes affecting glucose metabolism. Following mTBI, increased glucose flux through glycolysis is coupled to mitochondrial glucose oxidation. "True" hyperglycolysis occurs only after sTBI, where metabolic changes, caused by depressed mitochondrial phosphorylating capacity, act on genes causing net glycolytic flux increase uncoupled from mitochondrial glucose oxidation.
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Affiliation(s)
- Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168 Rome, Italy.
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168 Rome, Italy.
| | - Valentina Di Pietro
- Neurobiology, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK.
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences Head and Neck Surgery, S. Camillo Hospital, Circonvallazione Gianicolense 87, 00152 Rome, Italy.
| | - Giuseppe Lazzarino
- Department of Biomedical and Biotechnological Sciences, Division of Medical Biochemistry, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
| | - Antonio Belli
- Neurobiology, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, B15 2TT Birmingham, UK; National Institute for Health Research Surgical Reconstruction and Microbiology Research Centre, Queen Elizabeth Hospital, Edgbaston, B15 2TH Birmingham, UK.
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Largo F. Vito 1, 00168 Rome, Italy.
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23
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Petzold A, Nijland PG, Balk LJ, Amorini AM, Lazzarino G, Wattjes MP, Gasperini C, van der Valk P, Tavazzi B, Lazzarino G, van Horssen J. Visual pathway neurodegeneration winged by mitochondrial dysfunction. Ann Clin Transl Neurol 2014; 2:140-50. [PMID: 25750919 PMCID: PMC4338955 DOI: 10.1002/acn3.157] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 10/29/2014] [Accepted: 11/16/2014] [Indexed: 12/12/2022] Open
Abstract
Objectives To test for structural and functional contribution of mitochondrial dysfunction to neurodegeneration in multiple sclerosis (MS). A visual pathway model void of MS lesions was chosen in order to exclude neurodegeneration secondary to lesion related axonotmesis. Methods A single-centre cohort study (230 MS patients, 63 controls). Spectral domain optical coherence tomography of the retina, 3T magnetic resonance imaging of the brain, spectrophotometric assessment of serum lactate levels. Postmortem immunohistochemistry. Results The visual pathway was void of MS lesions in 31 patients and 31 age-matched controls. Serum lactate was higher in MS compared to controls (P = 0.029). High serum lactate was structurally related to atrophy of the retinal nerve fiber layer at the optic disc (P = 0.041), macula (P = 0.025), and the macular ganglion cell complex (P = 0.041). High serum lactate was functionally related to poor color vision (P < 0.01), Expanded Disability Status Scale score (R = 0.37, P = 0.041), Guy's Neurological disability score (R = 0.38, P = 0.037), MS walking scale (R = 0.50, P = 0.009), upper limb motor function (R = 0.53, P = 0.002). Immunohistochemistry demonstrated increased astrocytic expression of a key lactate generating enzyme in MS lesions as well as profound vascular expression of monocarboxylate transporter-1, which is involved in lactate transport. Interpretation This study provides structural, functional, and translational evidence for visual pathway neurodegeneration in MS related to mitochondrial dysfunction.
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Affiliation(s)
- Axel Petzold
- Department of Neurology, VU University Medical Center De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands ; Department of Ophthalmology, VU University Medical Center De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands ; Molecular Neuroscience, UCL Institute of Neurology Queen Square, London, WC1N 3BG, United Kingdom ; Moorfields Eye Hospital, Neuro-ophthalmology City Road, London, UK
| | - Philip G Nijland
- Department of Pathology, VU University Medical Center Amsterdam, The Netherlands
| | - Lisanne J Balk
- Department of Neurology, VU University Medical Center De Boelelaan 1117, 1081 HV, Amsterdam, The Netherlands
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome Largo F. Vito 1, 00168, Rome, Italy
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome Largo F. Vito 1, 00168, Rome, Italy
| | - Mike P Wattjes
- Department of Radiology & Nuclear Medicine, VU University Medical Center Amsterdam, The Netherlands
| | - Claudio Gasperini
- Department of Neurosciences, S Camillo Forlanini Hospital Circonvallazione Gianicolense 87, 00152, Rome, Italy
| | - Paul van der Valk
- Department of Pathology, VU University Medical Center Amsterdam, The Netherlands
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome Largo F. Vito 1, 00168, Rome, Italy
| | - Giuseppe Lazzarino
- Division of Biochemistry and Molecular Biology, Department of Biology, Geology and Environmental Sciences, University of Catania Viale A. Doria 6, 95125, Catania, Italy
| | - Jack van Horssen
- Molecular Cell Biology and Immunology, VU University Medical Center Amsterdam, The Netherlands
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Di Pietro V, Lazzarino G, Amorini AM, Tavazzi B, D'Urso S, Longo S, Vagnozzi R, Signoretti S, Clementi E, Giardina B, Lazzarino G, Belli A. Neuroglobin expression and oxidant/antioxidant balance after graded traumatic brain injury in the rat. Free Radic Biol Med 2014; 69:258-64. [PMID: 24491879 DOI: 10.1016/j.freeradbiomed.2014.01.032] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/07/2014] [Accepted: 01/24/2014] [Indexed: 11/29/2022]
Abstract
Neuroglobin is a neuron-specific hexacoordinated globin capable of binding various ligands, including O2, NO, and CO, the biological function of which is still uncertain. Various studies seem to indicate that neuroglobin is a neuroprotective agent when overexpressed, acting as a potent inhibitor of oxidative and nitrosative stress. In this study, we evaluated the pathophysiological response of the neuroglobin gene and protein expression in the cerebral tissue of rats sustaining traumatic brain injury of differing severity, while simultaneously measuring the oxidant/antioxidant balance. Two levels of trauma (mild and severe) were induced in anesthetized animals using the weight-drop model of diffuse axonal injury. Rats were then sacrificed at 6, 12, 24, 48, and 120 h after traumatic brain injury, and the gene and protein expression of neuroglobin and the concentrations of malondialdehyde (as a parameter representative of reactive oxygen species-mediated damage), nitrite + nitrate (indicative of NO metabolism), ascorbate, and glutathione (GSH) were determined in the brain tissue. Results indicated that mild traumatic brain injury, although causing a reversible increase in oxidative/nitrosative stress (increase in malondialdehyde and nitrite + nitrate) and an imbalance in antioxidants (decrease in ascorbate and GSH), did not induce any change in neuroglobin. Conversely, severe traumatic brain injury caused an over nine- and a fivefold increase in neuroglobin gene and protein expression, respectively, as well as a remarkable increase in oxidative/nitrosative stress and depletion of antioxidants. The results of this study, showing a lack of effect in mild traumatic brain injury as well as asynchronous time course changes in neuroglobin expression, oxidative/nitrosative stress, and antioxidants in severe traumatic brain injury, do not seem to support the role of neuroglobin as an endogenous neuroprotective antioxidant agent, at least under pathophysiological conditions.
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Affiliation(s)
- Valentina Di Pietro
- Neurotrauma and Neurodegeneration Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Serafina D'Urso
- Department of Biology, Geology, and Environmental Sciences, Division of Biochemistry and Molecular Biology, University of Catania, 95125 Catania, Italy
| | - Salvatore Longo
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Roberto Vagnozzi
- Department of Biomedicine and Prevention, Section of Neurosurgery, University of Rome Tor Vergata, Rome, Italy
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences, Head and Neck Surgery, S. Camillo Hospital, Rome, Italy
| | - Elisabetta Clementi
- CNR Institute of "Chimica del riconoscimento molecolare," Catholic University of Rome, Rome, Italy
| | - Bruno Giardina
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biology, Geology, and Environmental Sciences, Division of Biochemistry and Molecular Biology, University of Catania, 95125 Catania, Italy.
| | - Antonio Belli
- Neurotrauma and Neurodegeneration Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, UK
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25
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Di Pietro V, Amorini AM, Tavazzi B, Vagnozzi R, Logan A, Lazzarino G, Signoretti S, Lazzarino G, Belli A. The molecular mechanisms affecting N-acetylaspartate homeostasis following experimental graded traumatic brain injury. Mol Med 2014; 20:147-57. [PMID: 24515258 DOI: 10.2119/molmed.2013.00153] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Accepted: 02/03/2014] [Indexed: 11/06/2022] Open
Abstract
To characterize the molecular mechanisms of N-acetylaspartate (NAA) metabolism following traumatic brain injury (TBI), we measured the NAA, adenosine triphosphate (ATP) and adenosine diphosphate (ADP) concentrations and calculated the ATP/ADP ratio at different times from impact, concomitantly evaluating the gene and protein expressions controlling NAA homeostasis (the NAA synthesizing and degrading enzymes N-acetyltransferase 8-like and aspartoacylase, respectively) in rats receiving either mild or severe TBI. The reversible changes in NAA induced by mild TBI were due to a combination of transient mitochondrial malfunctioning with energy crisis (decrease in ATP and in the ATP/ADP ratio) and modulation in the gene and protein levels of N-acetyltransferase 8-like and increase of aspartoacylase levels. The irreversible decrease in NAA following severe TBI, was instead characterized by profound mitochondrial malfunctioning (constant 65% decrease of the ATP/ADP indicating permanent impairment of the mitochondrial phosphorylating capacity), dramatic repression of the N-acetyltransferase 8-like gene and concomitant remarkable increase in the aspartoacylase gene and protein levels. The mechanisms underlying changes in NAA homeostasis following graded TBI might be of note for possible new therapeutic approaches and will help in understanding the effects of repeat concussions occurring during particular periods of the complex NAA recovery process, coincident with the so called window of brain vulnerability.
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Affiliation(s)
- Valentina Di Pietro
- Neuropharmacology and Neurobiology Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Angela Maria Amorini
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Roberto Vagnozzi
- Department of Biomedicine and Prevention, Section of Neurosurgery, University of Rome Tor Vergata, Rome, Italy
| | - Ann Logan
- Neuropharmacology and Neurobiology Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Giacomo Lazzarino
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
| | - Stefano Signoretti
- Division of Neurosurgery, Department of Neurosciences Head and Neck Surgery, San Camillo Hospital, Rome, Italy
| | - Giuseppe Lazzarino
- Department of Biology, Geology and Environmental Sciences, Division of Biochemistry and Molecular Biology, University of Catania, Catania, Italy
| | - Antonio Belli
- Neuropharmacology and Neurobiology Section, School of Clinical and Experimental Medicine, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom
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26
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Cozzolino M, Augello B, Carella M, Palumbo O, Tavazzi B, Amorini AM, Lazzarino G, Merla G, Brunetti-Pierri N. Chromosomal 17p13.3 microdeletion unmasking recessive Canavan disease mutation. Mol Genet Metab 2011; 104:706-7. [PMID: 22019069 DOI: 10.1016/j.ymgme.2011.09.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2011] [Accepted: 09/26/2011] [Indexed: 10/17/2022]
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27
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Lazzarino G, Amorini AM, Di Pietro V, Tavazzi B. HPLC analysis for the clinical-biochemical diagnosis of inborn errors of metabolism of purines and pyrimidines. Methods Mol Biol 2011; 708:99-117. [PMID: 21207285 DOI: 10.1007/978-1-61737-985-7_5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The determination of purines and pyrimidines in biofluids is useful for the clinical-biochemical characterization of acute and chronic pathological states that induce transient or permanent alterations of metabolism. In particular, the diagnosis of several inborn errors of metabolism (IEMs) is accomplished by the analysis of circulating and excreted purines and pyrimidines. It is certainly advantageous to simultaneously determine the full purine and pyrimidine profile, as well as to quantify other compounds of relevance (e.g., organic acids, amino acids, sugars) in various metabolic hereditary diseases, in order to screen for a large number of IEMs using a reliable and sensitive analytical method characterized by mild to moderate costs. Toward this end, we have developed an ion-pairing HPLC method with diode array detection for the synchronous separation of several purines and pyrimidines. This method also allows the quantification of additional compounds such as N-acetylated amino acids and dicarboxylic acids, the concentrations of which are profoundly altered in different IEMs. The application of the method in the analysis of biological samples from patients with suspected purine and pyrimidine disorders is presented to illustrate its applicability for the clinical-biochemical diagnosis of IEM.
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Affiliation(s)
- Giuseppe Lazzarino
- Division of Biochemistry and Molecular Biology, Department of Chemical Sciences, University of Catania, Catania, Italy.
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28
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Alberghina D, Amorini AM, Lazzarino G. Modulation of peripheral markers of the serotoninergic system in healthy horses. Res Vet Sci 2010; 90:392-5. [PMID: 20633913 DOI: 10.1016/j.rvsc.2010.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2009] [Revised: 05/07/2010] [Accepted: 06/21/2010] [Indexed: 10/19/2022]
Abstract
To evaluate the changes in plasma and platelet serotonin (5-HT) as markers of the serotoninergic system in equines, 5-HT content was measured by high performance liquid chromatography (HPLC) in deproteinized plasma obtained from peripheral blood samples of 12 clinically healthy horses, before and after feeding. 5-HT was measured in platelet rich plasma (PRP) and in platelet poor plasma (PPP). 5-HT in platelets (p5-HT) was obtained by subtracting free 5-HT in PPP (f5-HT) from 5-HT in PRP. After food ingestion, significant increases in p5-HT and f5-HT (p < 0.001), and no changes in the f5-HT/p5-HT ratio were recorded. Increase in the total circulating 5-HT might account both for initiating peristaltic activity and for increasing the f5-HT levels. Augmented 5-HT uptake by platelets could reflect the hypothetical increased activity of the serotoninergic neurons. Besides showing the feasibility to obtain f5-HT and p5-HT through HPLC determination of 5-HT in PRP and PPP equine plasma, these findings are consistent with the postulation that 5-HT is released from enterochromaffin cells following a mechanical and chemical stimulation.
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Affiliation(s)
- D Alberghina
- Department of Experimental Sciences and Applied Biotechnology, Faculty of Veterinary Medicine, University of Messina, Viale Annunziata, 98100 Messina, Italy
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Lazzarino G, Amorini AM, Eikelenboom MJ, Killestein J, Belli A, Di Pietro V, Tavazzi B, Barkhof F, Polman CH, Uitdehaag BMJ, Petzold A. Cerebrospinal fluid ATP metabolites in multiple sclerosis. Mult Scler 2010; 16:549-54. [PMID: 20194579 DOI: 10.1177/1352458510364196] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Increased axonal energy demand and mitochondrial failure have been suggested as possible causes for axonal degeneration and disability in multiple sclerosis. Our objective was to test whether ATP depletion precedes clinical, imaging and biomarker evidence for axonal degeneration in multiple sclerosis. The method consisted of a longitudinal study which included 21 patients with multiple sclerosis. High performance liquid chromatography was used to quantify biomarkers of the ATP metabolism (oxypurines and purines) from the cerebrospinal fluid at baseline. The Expanded Disability Status Scale, MRI brain imaging measures for brain atrophy (ventricular and parenchymal fractions), and cerebrospinal fluid biomarkers for axonal damage (phosphorylated and hyperphosphorylated neurofilaments) were quantified at baseline and 3-year follow-up. Central ATP depletion (sum of ATP metabolites >19.7 micromol/litre) was followed by more severe progression of disability if compared to normal ATP metabolites (median 1.5 versus 0, p< 0.05). Baseline ATP metabolite levels correlated with change of Expanded Disability Status Scale in the pooled cohort (r= 0.66, p= 0.001) and subgroups (relapsing-remitting patients: r= 0.79, p< 0.05 and secondary progressive/primary progressive patients: r= 0.69, p< 0.01). There was no relationship between central ATP metabolites and either biomarker or MRI evidence for axonal degeneration. The data suggests that an increased energy demand in multiple sclerosis may cause a quantifiable degree of central ATP depletion. We speculate that the observed clinical disability may be related to depolarisation associated conduction block.
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Affiliation(s)
- G Lazzarino
- Department of Chemical Sciences, Laboratory of Biochemistry, University of Catania, Italy
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Perruzza I, Di Pietro V, Tavazzi B, Lazzarino G, Gamberini M, Barsotti P, Amorini AM, Giardina B, Balducci A. Is adenine phophorybosiltransferase deficiency a still underdiagnosed cause of urolithiasis and chronic renal failure? A report of two cases in a family with an uncommon novel mutation. NDT Plus 2008; 1:292-5. [PMID: 25983915 PMCID: PMC4421284 DOI: 10.1093/ndtplus/sfn072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2007] [Accepted: 05/28/2008] [Indexed: 12/04/2022] Open
Abstract
We describe two patients that had a history of recurrent renal stones and chronic renal insufficiency. The first case was a 51-year-old man with an adenine phophoribosyltransferase (APRT) deficiency who was diagnosed only after he had been referred for severe renal failure requiring hemodialysis. This led to a screening of the entire family, which identified six carriers and an additional affected relative (a 41-year-old man and the second case reported herein). Genetic analysis of the APRT gene revealed an atypical mutation previously described only once in a compound heterozygote.
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Affiliation(s)
- Italia Perruzza
- Department of Nephrology, Azienda Ospedaliera S. Giovanni-Addolorata, Rome
| | - Valentina Di Pietro
- Institute of Biochemistry and Clinical Biochemistry , Catholic University of Rome , Rome
| | - Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry , Catholic University of Rome , Rome
| | - Giuseppe Lazzarino
- Department of Chemical Sciences, Laboratory of Biochemistry , University of Catania , Catania
| | - Marco Gamberini
- Department of Nephrology, Azienda Ospedaliera S. Giovanni-Addolorata, Rome
| | - Paola Barsotti
- Department of Experimental Medicine and Pathology , University of Rome "La Sapienza" , Rome , Italy
| | - Angela Maria Amorini
- Department of Chemical Sciences, Laboratory of Biochemistry , University of Catania , Catania
| | - Bruno Giardina
- Institute of Biochemistry and Clinical Biochemistry , Catholic University of Rome , Rome
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Di Pietro V, Gambacurta A, Amorini AM, Finocchiaro A, D'Urso S, Ceccarelli L, Tavazzi B, Giardina B, Lazzarino G. A new T677C mutation of the aspartoacylase gene encodes for a protein with no enzymatic activity. Clin Biochem 2008; 41:611-5. [DOI: 10.1016/j.clinbiochem.2008.01.021] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2007] [Revised: 01/17/2008] [Accepted: 01/22/2008] [Indexed: 10/22/2022]
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Bellia F, Amorini AM, La Mendola D, Vecchio G, Tavazzi B, Giardina B, Di Pietro V, Lazzarino G, Rizzarelli E. New glycosidic derivatives of histidine-containing dipeptides with antioxidant properties and resistant to carnosinase activity. Eur J Med Chem 2007; 43:373-80. [PMID: 17548130 DOI: 10.1016/j.ejmech.2007.03.038] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2007] [Revised: 03/19/2007] [Accepted: 03/30/2007] [Indexed: 11/19/2022]
Abstract
Synthesis, antioxidant properties and resistance to carnosinase hydrolysis of histidine-containing dipeptides are reported in this study. Carnosine (beta-alanyl-l-histidine), homocarnosine (gamma-aminobutyryl-l-histidine) and anserine (beta-alanyl-3-methyl-l-histidine) were covalently derivatized with beta-cyclodextrin to form different OH- or NH-bound conjugates. Mass spectroscopic and (1)H NMR data were used to determine the structure and the purity of the various beta-cyclodextrin derivatives. The inhibitory effect towards oxidation of human LDL induced by Cu(2+) ions, was estimated by measuring malondialdehyde formation as a function of increasing concentrations of these newly synthesized compounds (the beta-cyclodextrin-anserine conjugated in 3 had the highest antioxidant effect). All derivatives had higher antioxidant effects than those of the corresponding free histidine-containing dipeptides. Resistance to rat brain carnosinase hydrolysis of the most active derivatives indicated that these compounds are good candidates for further studies in more complex cellular and animal models. Their possible applications for remedies in neurodegenerative disorders, such as Alzheimer's and Parkinson's diseases, are discussed.
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Affiliation(s)
- Francesco Bellia
- Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy
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Romitelli F, Santini SA, Chierici E, Pitocco D, Tavazzi B, Amorini AM, Lazzarino G, Di Stasio E. Comparison of nitrite/nitrate concentration in human plasma and serum samples measured by the enzymatic batch Griess assay, ion-pairing HPLC and ion-trap GC-MS: the importance of a correct removal of proteins in the Griess assay. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 851:257-67. [PMID: 17324645 DOI: 10.1016/j.jchromb.2007.02.003] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2006] [Revised: 01/31/2007] [Accepted: 02/06/2007] [Indexed: 12/21/2022]
Abstract
Mass spectrometry-based approaches are the reference techniques for the determination of nitrite and nitrate in plasma and serum. However, due to their simplicity and rapidity, assays based on the Griess reaction or HPLC are generally used in clinical studies, but they generate diverging values for nitrite/nitrate concentration. In this study, particular attention is paid to the optimization of the deproteinization procedure for plasma and serum samples prior to nitrite/nitrate analysis by an enzymatic batch Griess assay, HPLC and GC-MS. A method is reported to verify completeness of deproteinization and to correct for nonspecific contribution to the absorbance of the diazo dye at 540 nm. With the application of such optimized procedures, we were able to significantly improve the correlation between Griess and HPLC method or the GC-MS technique for nitrite+nitrate concentrations in human serum and plasma. Despite remaining potentially interfering pre-analytical and analytical factors, the procedures reported in the present study may be helpful in a critical evaluation of limits and possibilities of the enzymatic batch Griess assay as a large-scale method for nitrite/nitrate determination in human serum in clinical studies.
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Affiliation(s)
- Federica Romitelli
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Sacred Heart, Largo F. Vito 1, 00168 Rome, Italy
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Amorini AM, Bellia F, Di Pietro V, Giardina B, La Mendola D, Lazzarino G, Sortino S, Tavazzi B, Rizzarelli E, Vecchio G. Synthesis and antioxidant activity of new homocarnosine beta-cyclodextrin conjugates. Eur J Med Chem 2007; 42:910-20. [PMID: 17336428 DOI: 10.1016/j.ejmech.2006.12.036] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Accepted: 12/29/2006] [Indexed: 11/22/2022]
Abstract
Several in vitro and in vivo studies have suggested that carnosine (beta-alanil-L-histidine) and homocarnosine (beta-aminobutyril-L-histidine) can act as scavengers of reactive oxygen species. beta-Cyclodextrin was functionalized with homocarnosine, obtaining the following new bioconjugate isomers: 6(A)-[(4-{[(1S)-1-carboxy-2-(1H-imidazol-4-yl)ethyl]amino}-4-oxobutyl)amino]-6(A)-deoxy-beta-cyclodextrin and (2(A)S,3(A)R)-3A-[(4-{[(1S)-1-carboxy-2-(1H-imidazol-4-yl)ethyl]amino}-4-oxobutyl)amino]-3(A)-deoxy-beta-cyclodextrin. Pulse radiolysis investigations show that the beta-cyclodextrin homocarnosine bioconjugates are scavengers of (*)OH radicals because of the formation of stable imidazole-centered radicals and the scavenger ability of glucose molecules of the macrocycle. The ability of these new beta-cyclodextrin derivatives to inhibit the copper(II) driven LDL oxidation was determined in comparison with that displayed by the analogous carnosine derivatives. Both the beta-cyclodextrin carnosine isomers show a higher protective effect than that of free dipeptide and homocarnosine derivatives, bringing into light the role of the beta-CD cavity. The ability of these new beta-cyclodextrin derivatives to inhibit the copper(II) driven LDL oxidation was determined in comparison with that displayed by the analogous carnosine derivatives. Both the beta-cyclodextrin carnosine isomers show a higher protective effect than that of free dipeptide and homocarnosine derivatives, bringing into light the role of the beta-CD cavity.
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Affiliation(s)
- Angela Maria Amorini
- Dipartimento di Scienze Chimiche, Università di Catania, V.le A. Doria 6, 95125 Catania, Italy
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Di Pietro V, Perruzza I, Amorini AM, Balducci A, Ceccarelli L, Lazzarino G, Barsotti P, Giardina B, Tavazzi B. Clinical, biochemical and molecular diagnosis of a compound homozygote for the 254 bp deletion-8 bp insertion of the APRT gene suffering from severe renal failure. Clin Biochem 2006; 40:73-80. [PMID: 17126311 DOI: 10.1016/j.clinbiochem.2006.09.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2006] [Revised: 09/01/2006] [Accepted: 09/07/2006] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the type of mutation in a patient with clinical diagnosis of suspected APRT deficiency. DESIGN AND METHODS A 51-year-old male patient, with a clinical history of two prior episodes of renal colic with urinary stone excretion (reported as uric acid stones in the first episode and as calcium oxalate stones in the second), was admitted to the hospital with severe non-oliguric renal failure (1.06 mmol/L serum creatinine), severe hyponatremia (114 mmol/L Na(+)), metabolic acidosis (14 mmol/L HCO(3)(-)) and uricemia in the normal range. Abnormalities at renal scan and persistency of severe renal failure required to start haemodialysis. Results of renal biopsy prompted us to undertake a biochemical and molecular biological evaluation of the patient for suspected adenine phosphoribosyltransferase (APRT) deficiency. RESULTS HPLC analysis of serum and urine, for determining purine derivative profile, showed the pathological presence of adenine in both biological fluids (3.57 micromol/L and 7.11 micromol/mmol creatinine in serum and urine, respectively; not detectable in both fluids in healthy controls). APRT assay in a sample of patient hemolysate showed no detectable activity of the enzyme (25.56+/-9.55 U/L red blood cells in control healthy subjects). Molecular biological analysis of the amplified APRT gene revealed that the patient harboured in exon 3 a homozygous 254 bp deletion-8 bp insertion, previously described only once in a compound heterozygote. Analysis of the patient family showed that heterozygotes for this APRT gene mutation, in spite of a 69% lower APRT enzymatic activity than that of healthy subjects, had no detectable adenine concentrations in both serum and urine. CONCLUSIONS Results of the first patient harbouring the homozygous 254 bp deletion-8 bp insertion of the APRT gene strongly indicated that definitive diagnosis of APRT deficiency (often under or misdiagnosed) would require a combined clinical, biochemical and molecular biological evaluation.
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Affiliation(s)
- Valentina Di Pietro
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome, Rome, Italy
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Kleindienst A, Fazzina G, Amorini AM, Dunbar JG, Glisson R, Marmarou A. Modulation of AQP4 expression by the protein kinase C activator, phorbol myristate acetate, decreases ischemia-induced brain edema. Acta Neurochir Suppl 2006; 96:393-7. [PMID: 16671492 DOI: 10.1007/3-211-30714-1_81] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The protein kinase C activator, phorbol 12-myristate 13-acetate (PMA), is known to interact with aquaporin-4 (AQP4), a water-selective transporting protein abundant in astrocytes and ependymal cells, that has been found to decrease osmotically-induced swelling. The purpose of this study was to examine whether PMA given at different time points following focal ischemia induced by middle cerebral artery occlusion (MCAO) reduces brain edema by AQP4 modulation. Male Sprague-Dawley rats were randomly assigned to sham procedure, vehicle, or PMA infusion (230 microg/kg), starting either 60 minutes before, or 30 or 60 minutes after MCAO (each group n = 12). After a 2-hour period of ischemia and 2 hours of reperfusion, the animals were sacrificed for assessment of brain water content, sodium, and potassium concentrations. AQP4 expression was assessed by immunoblotting. Statistical analysis was performed by ANOVA followed by Tukey's post hoc test. PMA treatment significantly reduced brain water content concentration in the infarcted area when started before or 30 minutes post-occlusion (p < 0.001, p = 0.022) and prevented the subsequent sodium shift (p < 0.05). Furthermore, PMA reduced ischemia-induced AQP4 up-regulation (p < 0.05). Attenuation of the ischemia-induced AQP4 up-regulation by PMA suggests that the reduction in brain edema formation following PMA treatment was at least in part mediated by AQP4 modulation.
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Affiliation(s)
- A Kleindienst
- Department of Neurosurgery, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0508, USA
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Vagnozzi R, Signoretti S, Tavazzi B, Cimatti M, Amorini AM, Donzelli S, Delfini R, Lazzarino G. Hypothesis of the postconcussive vulnerable brain: experimental evidence of its metabolic occurrence. Neurosurgery 2006; 57:164-71; discussion 164-71. [PMID: 15987552 DOI: 10.1227/01.neu.0000163413.90259.85] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2004] [Accepted: 02/10/2005] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE We evaluated the effects of two consecutive concussive injuries on brain energy metabolism and N-acetylaspartate (NAA) to investigate how the temporal interval between traumatic events influences overall injury severity. METHODS Rats were injured to induce diffuse traumatic brain injury (TBI) (mild, 450 g/1 m; severe, 450 g/2 m). In two groups, two mild TBIs were delivered in 3- or 5-day intervals. Three additional animal groups were used: single mild TBI, single severe TBI, and sham. All animals were killed 48 hours postinjury. Adenosine 5'-triphosphate (ATP), adenosine diphosphate, and NAA concentrations were analyzed with high-performance liquid chromatography on deproteinized whole brain extracts. RESULTS In control animals, the NAA concentration was 9.17 +/- 0.38 micromol/g wet weight, the ATP concentration was 2.25 +/- 0.21 micromol/g wet weight, and the ATP-to-adenosine diphosphate ratio was 9.38 +/- 1.23. These concentrations decreased to 6.68 +/- 1.12 micromol/g wet weight, 1.68 +/- 0.24 micromol/g wet weight, and 6.10 +/- 1.21 micromol/g wet weight, respectively, in rats that received two mild TBIs at a 5-day interval (P < 0.01; not different from results in rats with single mild TBI). When a second TBI was delivered after 3 days, the NAA concentration was 3.86 +/- 0.53 micromol/g wet weight, the ATP concentration was 1.11 +/- 0.18 micromol/g wet weight, and the ATP-to-adenosine diphosphate ratio was 2.64 +/- 0.43 (P < 0.001 versus both controls and 3-day interval; not different from rats receiving a single severe TBI). CONCLUSION The biochemical modification severity in double TBI is dependent on the interval between traumatic events, which demonstrates the metabolic state of the vulnerable brain after mild TBI. These data support the hypothesis of the application of proton magnetic resonance spectroscopy to measure NAA as a possible tool to monitor the full recovery of brain metabolic functions in the clinical setting, particularly in sports medicine.
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Affiliation(s)
- Roberto Vagnozzi
- Department of Neurosciences, Sport Neurotraumatology, University of Rome Tor Vergata, Rome, Italy
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Belli A, Sen J, Petzold A, Russo S, Kitchen N, Smith M, Tavazzi B, Vagnozzi R, Signoretti S, Amorini AM, Bellia F, Lazzarino G. Extracellular N-acetylaspartate depletion in traumatic brain injury. J Neurochem 2006; 96:861-9. [PMID: 16371008 DOI: 10.1111/j.1471-4159.2005.03602.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
N-Acetylaspartate (NAA) is almost exclusively localized in neurons in the adult brain and is present in high concentration in the CNS. It can be measured by proton magnetic resonance spectroscopy and is seen as a marker of neuronal damage and death. NMR spectroscopy and animal models have shown NAA depletion to occur in various types of chronic and acute brain injury. We investigated 19 patients with traumatic brain injury (TBI). Microdialysis was utilized to recover NAA, lactate, pyruvate, glycerol and glutamate, at 12-h intervals. These markers were correlated with survival and a 6-month Glasgow Outcome Score. Eleven patients died and eight survived. A linear mixed model analysis showed a significant effect of outcome and of the interaction between time of injury and outcome on NAA levels (p = 0.009 and p = 0.004, respectively). Overall, extracellular NAA was 34% lower in non-survivors. A significant non-recoverable fall was observed in this group from day 4 onwards, with a concomitant rise in lactate-pyruvate ratio and glycerol. These results suggest that mitochondrial dysfunction is a significant contributor to poor outcome following TBI and propose extracellular NAA as a potential marker for monitoring interventions aimed at preserving mitochondrial function.
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Affiliation(s)
- Antonio Belli
- Victor Horsley Department of Neurosurgery, The National Hospital for Neurology and Neurosurgery, London, UK
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Paolocci N, Tavazzi B, Biondi R, Gluzband YA, Amorini AM, Tocchetti CG, Hejazi M, Caturegli PM, Kajstura J, Lazzarino G, Kass DA. Metalloproteinase inhibitor counters high-energy phosphate depletion and AMP deaminase activity enhancing ventricular diastolic compliance in subacute heart failure. J Pharmacol Exp Ther 2006; 317:506-13. [PMID: 16436497 DOI: 10.1124/jpet.105.099168] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Cardiac matrix metalloproteinases (MMPs) stimulated by the sympathomimetic action of angiotensin II (AII) exacerbate chamber diastolic stiffening in models of subacute heart failure. Here we tested the hypothesis that MMP inhibition prevents such stiffening by favorably modulating high-energy phosphate (HEP) stores more than by effects on matrix remodeling. Dogs were administered AII i.v. for 1 week with tachypacing superimposed in the last two days (AII+P; n = 8). A second group (n = 9) underwent the same AII+P protocol but was preceded by oral treatment with an MMP inhibitor PD166793 [(S)-2-(4-bromo-biphenyl-4-sulfonylamino-3-methyl butyric acid] 1 week before and during the AII+P period. Pressure-volume analysis was performed in conscious animals, and myocardial tissue was subjected to in vitro and in situ zymography, collagen content, and HEP analysis (high-performance liquid chromatography). As reported previously, AII+P activated MMP9 and MMP2 and specifically exacerbated diastolic stiffening (+130% in chamber stiffness). PD166793 cotreatment prevented these changes, although myocardial collagen content, subtype, and cross-linking were unaltered. AII+P also reduced ATP, free energy of ATP hydrolysis (DeltaG(ATP)), and phosphocreatine while increasing free [ADP], AMP catabolites (nucleoside-total purines), and lactate. PD166793 reversed most of these changes, in part due to its inhibition of AMP deaminase. MMP activation may influence cardiac diastolic function by mechanisms beyond modulation of extracellular matrix. Interaction between MMP activation and HEP metabolism may play an important role in mediating diastolic dysfunction. Furthermore, these data highlight a potential major role for increased AMP deaminase activity in diastolic dysfunction.
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Affiliation(s)
- Nazareno Paolocci
- Division of Cardiology, Johns Hopkins University School of Medicine, 720 Rutland Avenue, Baltimore, MD 21205, USA.
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Tavazzi B, Lazzarino G, Leone P, Amorini AM, Bellia F, Janson CG, Di Pietro V, Ceccarelli L, Donzelli S, Francis JS, Giardina B. Simultaneous high performance liquid chromatographic separation of purines, pyrimidines, N-acetylated amino acids, and dicarboxylic acids for the chemical diagnosis of inborn errors of metabolism. Clin Biochem 2005; 38:997-1008. [PMID: 16139832 DOI: 10.1016/j.clinbiochem.2005.08.002] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2005] [Revised: 07/11/2005] [Accepted: 08/04/2005] [Indexed: 12/20/2022]
Abstract
OBJECTIVES To set up a novel simple, sensitive, and reliable ion-pairing HPLC method for the synchronous separation of several purines, pyrimidines, N-acetylated amino acids, and dicarboxylic acids for the chemical diagnosis and screening of inborn errors of metabolism (IEM). DESIGN AND METHODS The separation was set up using a Hypersil C-18, 5-microm particle size, 250 x 4.6 mm column, and a step gradient using two buffers and tetrabutylammonium hydroxide as the pairing reagent. A highly sensitive diode array UV detector was set up at a wavelength between 200 and 300 nm that revealed purines and pyrimidines at 260 nm and other compounds at 206 nm. RESULTS Compounds were determined in the plasma of 15 healthy adults, in the urine of 50 healthy subjects (1-3 years, 4-6 years, 8-10 years, 12-18 years, 25-35 years), and in 10 non-pathological amniotic fluid samples. To assess the validity of the chemical diagnosis of IEM, plasma and urine samples were analyzed in patients affected by Canavan disease (n = 10; mean age 4.6 +/- 2.3). Low plasma levels of N-acetylaspartate (16.96 +/- 19.57 micromol/L plasma; not detectable in healthy adults) and dramatically high urinary N-acetylaspartate concentrations (1872.03 +/- 631.86 micromol/mmol creatinine; 450 times higher than that which was observed in age-matched controls) were recorded. Neither N-acetylglutamate nor N-acetylaspartylglutamate could be detected in the plasma or urine of controls or patients with Canavan disease. CONCLUSIONS The results demonstrate the suitability of the present ion-pairing HPLC separation with UV detection of cytosine, cytidine, creatinine, uracil, uridine, beta-pseudouridine, adenine, 3-methyladenine, hypoxanthine, xanthine, xanthosine, inosine, guanosine, ascorbic acid, thymine, thymidine, uric acid, 1-methyluric acid, orotic acid, N-acetylaspartate, N-acetylglutamate, N-acetylaspartylglutamate, malonic acid, methylmalonic acid, GSH, and GSSG as a reliable method for the prenatal and neonatal chemical diagnosis and screening of IEM using biological fluids.
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Affiliation(s)
- Barbara Tavazzi
- Institute of Biochemistry and Clinical Biochemistry, Catholic University of Rome Sacro Cuore, Largo F. Vito 1, 00168 Rome, Italy
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Lazzarino G, Amorini AM, Fazzina G, Vagnozzi R, Signoretti S, Donzelli S, Di Stasio E, Giardina B, Tavazzi B. Single-sample preparation for simultaneous cellular redox and energy state determination. Anal Biochem 2004; 322:51-9. [PMID: 14705780 DOI: 10.1016/j.ab.2003.07.013] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A simple and reliable method for the preparation of biological samples for the evaluation of biochemical parameters representative of the redox and energy states, such as glutathione (GSH), oxidized glutathione (GSSG), oxidized nicotinamide adenine dinucleotide (NAD+), reduced nicotinamide adenine dinucleotide (NADH), oxidized nicotinamide adenine dinucleotide phosphate (NADP+), reduced nicotinamide adenine dinucleotide phosphate (NADPH), coenzyme A (CoASH), oxidized CoASH, ascorbate, malondialdehyde, oxypurines, nucleosides, and energy metabolites, is presented. Fast deproteinization under nonoxidizing conditions is obtained by tissue homogenization in ice-cold, nitrogen-saturated CH3CN + 10 mM KH2PO4 (3:1; v:v), pH 7.40. After sample centrifugation to pellet precipitated proteins, organic solvent removal is performed on clear supernatants by three washings with large volumes of high-performance liquid chromatography (HPLC)-grade chloroform. The remaining aqueous phase, free of solvent and any lipid-soluble substances that may interfere with the further metabolite analysis, is used for the simultaneous ion-pairing HPLC determination of 39 compounds by means of a Kromasil C-18, 250 x 4.6-mm, 5-microm-particle-size column with tetrabutylammonium hydroxide as the pairing reagent. Results obtained by using the present method to prepare different rat tissue extracts demonstrate that it is possible to perform a single tissue preparation only for monitoring, in the same sample, compounds representative of the redox state (through the direct determination of GSH, GSSG, NAD+, NADH, NADP+, NADPH, CoASH, and oxidized CoASH) and of the cell energy state (by the analysis of oxypurines, nucleosides, and energy metabolites). Applicability of this sample processing procedure to quantify variations of the aforementioned compounds under pathological conditions was effected in rats subjected to moderate closed-head trauma.
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Affiliation(s)
- Giuseppe Lazzarino
- Laboratory of Biochemistry, Department of Chemical Sciences, University of Catania, Viale A. Doria 6, 95125 Catania, Italy.
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Amorini AM, Lazzarino G, Galvano F, Fazzina G, Tavazzi B, Galvano G. Cyanidin-3-O-beta-glucopyranoside protects myocardium and erythrocytes from oxygen radical-mediated damages. Free Radic Res 2003; 37:453-60. [PMID: 12747740 DOI: 10.1080/1071576021000055253] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The cyanidin-3-O-beta-glucopyranoside (C-3-G) antioxidant capacity towards reactive oxygen species (ROS)-mediated damages was assessed in tissue and cells submitted to increased oxidative stress. In the isolated ischemic and reperfused rat heart, 10 or 30 degreesM C-3-G protected from both lipid peroxidation (66.7 and 94% inhibition of malondialdehyde (MDA) generation in 10 and 30 microM C-3-G-reperfused hearts, respectively, in comparison with control reperfused hearts) and energy metabolism impairment (higher ATP concentration in 10 and 30 microM C-3-G-reperfused hearts than in control reperfused hearts). These effects were associated to C-3-G permeation within myocardial cells, as indicated by results obtained in the isolated rat heart perfused for 30 min in the recirculating Langendorff mode under normoxia with 10 and 30 microM C-3-G. Protective effects were exerted, in a dose-dependent manner, by C-3-G also in 2 mM hydrogen peroxide-treated human erythrocytes. With respect to MDA formation, an apparent IC50 of 5.12 microM was calculated for C-3-G (the polyphenol resveratrol used for comparison showed an apparent IC50 of 38.43 microM). The general indications are that C-3-G (largely diffused in dietary plants and fruits, such as pigmented oranges very common in the Mediterranean diet) represents a powerful natural antioxidant with beneficial effects in case of increased oxidative stress, and at pharmacological concentrations it is able to decrease tissue damages occurring in myocardial ischemia and reperfusion.
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Affiliation(s)
- Angela Maria Amorini
- Department of Chemical Sciences, Laboratory of Biochemistry, University of Catania, Viale A. Doria 6, Catania, Italy
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Abstract
Our Laboratory has pursued the hypothesis that traumatic brain edema is predominantly cellular and recent supportive evidence has been obtained indicating a non-extracellular route for sodium and water entering brain. The aim of this study was to investigate if astrocytic endfeet are involved in this passage, using a potent activator of Protein Kinase C (phorbol ester) to modify and closing the Aquaporin 4 (AQP4), a water channel specific for astrocytic endfoot. Anaesthetized Sprague-Dawley rats were subjected to an intracerebroventricular bolus of phorbol ester (50 pmol/4 microl) or vehicle, in the right hemisphere and after 30 minutes they were exposed to the well-established conical contusion model (3 mm depth at 6 m/sec) on the same side. After trauma, they were subjected to 5 hours of drug continuous infusion, then sacrificed. Water content measurements for both right (injured) and left (uninjured) hemispheres were calculated using the wet weight/dry weight technique. Results of these experiments showed a significant decrease in water content in injured phorbol treated animals, underlying that AQP4 regulation plays an important role in brain edema following stroke, and supporting the concept of cellular formation for edema via astrocytic foot processes.
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Affiliation(s)
- A M Amorini
- Division of Neurosurgery, Medical College of Virginia, Virginia Commonwealth University, Richmond, VA 23298-0508, USA
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Tavazzi B, Amorini AM, Fazzina G, Di Pierro D, Tuttobene M, Giardina B, Lazzarino G. Oxidative stress induces impairment of human erythrocyte energy metabolism through the oxygen radical-mediated direct activation of AMP-deaminase. J Biol Chem 2002. [DOI: 10.1016/s0021-9258(18)52196-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Tavazzi B, Amorini AM, Fazzina G, Di Pierro D, Tuttobene M, Giardina B, Lazzarino G. Oxidative stress induces impairment of human erythrocyte energy metabolism through the oxygen radical-mediated direct activation of AMP-deaminase. J Biol Chem 2001; 276:48083-92. [PMID: 11675377 DOI: 10.1074/jbc.m101715200] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
The effect of oxidative stress on human red blood cell AMP-deaminase activity was studied by incubating either fresh erythrocytes or hemolysates with H(2)O(2) (0.5, 1, 2, 4, 6, 8, and 10 mm) or NaNO(2) (1, 5, 10, 20, and 50 mm), for 15 min at 37 degrees C. AMP-deaminase tremendously increased by increasing H(2)O(2) or NaNO(2) at up to 4 and 20 mm, respectively (maximal effect for both oxidants was 9.5 and 6.5 times higher enzymatic activity than control erythrocytes or hemolysates, respectively). The incubation of hemolysates with iodoacetate (5-100 mm), N-ethylmaleimide (0.1-10 mm), or p-hydroxymercuribenzoate (0.1-5 mm) mimicked the effect of oxidative stress on AMP-deaminase, indicating that sulfhydryl group modification is involved in the enzyme activation. In comparison with control hemolysates, changes of the kinetic properties of AMP-deaminase (decrease of AMP concentration necessary for half-maximal activation, increase of V(max), modification of the curve shape of V(o) versus [S], Hill plots, and coefficients) were recorded with 4 mm H(2)O(2)- and 1 mm N-ethylmaleimide-treated hemolysates. Data obtained using 90% purified enzyme, incubated with Fenton reagents (Fe(2+) + H(2)O(2)) or -SH-modifying compounds, demonstrated that (i) reactive oxygen species are directly responsible for AMP-deaminase activation; (ii) this phenomenon occurs through sulfhydryl group modification; and (iii) the activation does not involve the loss of the tetrameric protein structure. Results of experiments conducted with glucose-6-phosphate dehydrogenase-deficient erythrocytes, challenged with increasing doses of the anti-malarial drug quinine hydrochloride and showing dramatic AMP-deaminase activation, suggest relevant physiopathological implications of this enzymatic activation in conditions of increased oxidative stress. To the best of our knowledge, this is the first example of an enzyme, fundamental for the maintenance of the correct red blood cell energy metabolism, that is activated (rather than inhibited) by the interaction with reactive oxygen species.
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Affiliation(s)
- B Tavazzi
- Department of Experimental Medicine and Biochemical Sciences, University of Rome "Tor Vergata," Via Tor Vergata 133, 00135 Rome, Italy
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Amorini AM, Fazzina G, Lazzarino G, Tavazzi B, Di Pierro D, Santucci R, Sinibaldi F, Galvano F, Galvano G. Activity and mechanism of the antioxidant properties of cyanidin-3-O-beta-glucopyranoside. Free Radic Res 2001; 35:953-66. [PMID: 11811546 DOI: 10.1080/10715760100301451] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
In the present study, the antioxidant activity, the interaction with reactive oxygen species and the redox potential of cyanidin-3-O-beta-glucopyranoside (C-3-G), the main anthocyanin present in juice of pigmented oranges, were evaluated in detail. C-3-G effects on low density lipoproteins (LDL) oxidation induced by 40 microM Cu at a pH of 7.4 were compared with those of resveratrol and ascorbic acid, two other natural antioxidants. All cyanidin-3-O-beta-glucopyranoside concentrations used (1, 2, 5, 10, 20, 50, 100 and 200 microM) inhibited malondialdehyde (MDA) generation (an index of lipid peroxidation), the inhibition being significantly higher than that obtained with equal concentrations of resveratrol and ascorbic acid (IC50 = 6.5 microM for C-3-G, 34 microM for resveratrol and 212 microM for ascorbic acid). Experiments of LDL oxidation performed at a pH of 5.0 or 6.0 showed that C-3-G antioxidant activity is not influenced by pH variations between 5.0 and 7.4. This suggests that metal chelation, exerted by C-3-G through the eventual dissociation of its phenolic groups, plays a minor role in its protective mechanism. The presence of C-3-G produced significantly higher protective effects of pigmented orange juice (obtained from Moro cultivar) with respect to blond orange juice, when tested on copper-induced LDL oxidation. The evaluation of the direct interaction with reactive oxygen species (H2O2, -O2, OH*), demonstrated that C-3-G is quickly oxidized by these compounds and it is, therefore, a highly efficient oxygen free radical scavenger. The powerful C-3-G antioxidant activity is in excellent agreement with the very negative redox potential (-405 mV), determined through direct current cyclic voltammetry measurements. On the basis of these results, C-3-G should be considered as one of the most effective antioxidants that can be assumed with dietary plants; therefore, pigmented oranges represent a very relevant C-3-G source because of the high content of this anthocyanin in their juice.
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Affiliation(s)
- A M Amorini
- Department of Chemical Sciences, University of Catania, Italy
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Cristofori L, Tavazzi B, Gambin R, Vagnozzi R, Vivenza C, Amorini AM, Di Pierro D, Fazzina G, Lazzarino G. Early onset of lipid peroxidation after human traumatic brain injury: a fatal limitation for the free radical scavenger pharmacological therapy? J Investig Med 2001; 49:450-8. [PMID: 11523701 DOI: 10.2310/6650.2001.33790] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
BACKGROUND On the basis of the contradiction between data on experimental head trauma showing oxidative stress-mediated cerebral tissue damage and failure of the majority of clinical trials using free radical scavenger drugs, we monitored the time-course changes of malondialdehyde (MDA, an index of cell lipid peroxidation), ascorbate, and dephosphorylated ATP catabolites in cerebrospinal fluid (CSF) of traumatic brain-injured patients. METHODS CSF samples were obtained from 20 consecutive patients suffering from severe brain injury. All patients were comatose, with a Glasgow Coma Scale on admission of 6 +/- 1. The first CSF sample for each patient was collected within a mean value of 2.95 hours from trauma (SD=1.98), after the insertion of a ventriculostomy catheter for the continuous monitoring of intracranial pressure. During the next 48 hours, CSF was withdrawn from each patient once every 6 hours. All samples were analyzed by an ion-pairing high-performance liquid chromatographic method for the simultaneous determination of MDA, ascorbic acid, hypoxanthine, xanthine, uric acid, inosine, and adenosine. RESULTS In comparison with values recorded in 10 herniated-lumbar-disk, noncerebral control patients, data showed that all CSF samples of brain-injured patients had high values (0.226 micromol/L; SD=0.196) of MDA (undetectable in samples of control patients) and decreased ascorbate levels (96.25 micromol/L; SD=31.74), already at the time of first withdrawal at the time of hospital admission. MDA was almost constant in the next two withdrawals and tended to decrease thereafter, although 48 hours after hospital admission, a mean level of 0.072 micromol/L CSF (SD=0.026) was still recorded. The ascorbate level was normalized 42 hours after hospital admission. Changes in the CSF values of ATP degradation products (oxypurines and nucleosides) suggested a dramatic alteration of neuronal energy metabolism after traumatic brain injury. CONCLUSIONS On the whole, these data demonstrate the early onset of oxygen radical-mediated oxidative stress, proposing a valid explanation for the failure of clinical trials based on the administration of oxygen free radical scavenger drugs and suggesting a possible rationale for testing the efficacy of lipid peroxidation "chain breakers" in future clinical trials.
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Affiliation(s)
- L Cristofori
- Department of Neurosurgery, University Hospital of Verona, Italy
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Di Pierro D, Lazzarino G, Pastore FS, Tavazzi B, Del Bolgia F, Amorini AM, Fazzina G, Giuffrè R. Determination of boronophenylalanine in biological samples using precolumn o-phthalaldehyde derivatization and reversed-phase high-performance liquid chromatography. Anal Biochem 2000; 284:301-6. [PMID: 10964413 DOI: 10.1006/abio.2000.4715] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A reversed-phase high-performance liquid chromatographic method for the detection of boronophenylalanine is described. Determination was obtained by precolumn reaction of o-phthalaldehyde with a mixture of standard amino acids containing boronophenylalanine and separating the corresponding o-phthalaldehyde derivatives, using a Kromasil C-18, 250 x 4.6 mm, 5-microm particle size column, a step gradient with two buffers, a flow rate of 1.2 ml/min, a column temperature of 23 degrees C, and fluorimetric detection (excitation and emission wavelengths of 330 and 430 nm, respectively). The use of such a method for assaying boronophenylalanine in biological samples was tested in neutralized perchloric acid blood and cerebral tissue extracts of rats treated with intracarotid administration of 300 mg/kg of body weight boronophenylalanine. Results of these experiments showed that the present HPLC method represents a valid alternative to currently available analytical techniques for assaying boronophenylalanine based on boron determination in terms of reproducibility, recovery, or sensitivity. Therefore, it is suggested that the present method may routinely be used in all preclinical and clinical studies in which quantification of circulating and tissue concentrations of boronophenylalanine is critical for the application of boron neutron capture therapy.
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Affiliation(s)
- D Di Pierro
- Department of Experimental Medicine and Biochemical Sciences, University of Rome "Tor Vergata,", Rome, Italy
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Tavazzi B, Di Pierro D, Amorini AM, Fazzina G, Galvano M, Lupi A, Giardina B, Lazzarino G. Direct NAD(P)H hydrolysis into ADP-ribose(P) and nicotinamide induced by reactive oxygen species: a new mechanism of oxygen radical toxicity. Free Radic Res 2000; 33:1-12. [PMID: 10826916 DOI: 10.1080/10715760000300561] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The effect of different oxygen radical-generating systems on NAD(P)H was determined by incubating the reduced forms of the pyridine coenzymes with either Fe2+-H2O2 or Fe3+-ascorbate and by analyzing the reaction mixtures using a HPLC separation of adenine nucleotide derivatives. The effect of the azo-initiator 2,2'-azobis(2-methylpropionamidine)dihydrochloride was also tested. Results showed that, whilst all the three free radical-producing systems induced, with different extent, the oxidation of NAD(P)H to NAD(P)+, only Fe2+-H2O2 also caused the formation of equimolar amounts of ADP-ribose(P) and nicotinamide. Dose-dependent experiments, with increasing Fe2+ iron (concentration range 3-180 microM) or H2O2 (concentration range 50-1000 microM), were carried out at pH 6.5 in 50 mM ammonium acetate. NAD(P)+, ADP-ribose(P) and nicotinamide formation increased by increasing the amount of hydroxyl radicals produced in the medium. Under such incubation conditions NAD(P)+/ADP-ribose(P) ratio was about 4 at any Fe2+ or H2O2 concentration. By varying pH to 2.0, 3.0, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0 and 7.4, NAD(P)+/ADP-ribose(P) ratio changed to 5.5, 3.2, 1.8, 1.6, 2.0, 2.5, 3.0, 5.4 and 6.5, respectively. Kinetic experiments indicated that 90-95% of all compounds were generated within 5s from the beginning of the Fenton reaction. Inhibition of ADP-ribose(P), nicotinamide and NAD(P)+ production of Fe2+-H2O2-treated NAD(P)H samples, was achieved by adding mannitol (10-50 mM) to the reaction mixture. Differently, selective and total inhibition of ADP-ribose(P) and nicotinamide formation was obtained by performing the Fenton reaction in an almost completely anhydrous medium, i.e. in HPLC-grade methanol. Experiments carried out in isolated postischemic rat hearts perfused with 50 mM mannitol, showed that, with respect to values of control hearts, this hydroxyl radical scavenger prevented reperfusion-associated pyridine coenzyme depletion and ADP-ribose formation. On the basis of these results, a possible mechanism of action of ADP-ribose(P) and nicotinamide generation through the interaction between NAD(P)H and hydroxyl radical (which does not involve the C-center where "conventional" oxidation occurs) is presented. The implication of this phenomenon in the pyridine coenzyme depletion observed in postischemic tissues is also discussed.
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Affiliation(s)
- B Tavazzi
- Department of Experimental Medicine and Biochemical Sciences, University of Rome, Tor Vergata, Italy.
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Tavazzi B, Di Pierro D, Amorini AM, Fazzina G, Tuttobene M, Giardina B, Lazzarino G. Energy metabolism and lipid peroxidation of human erythrocytes as a function of increased oxidative stress. Eur J Biochem 2000; 267:684-9. [PMID: 10651804 DOI: 10.1046/j.1432-1327.2000.01042.x] [Citation(s) in RCA: 109] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To study the influence of oxidative stress on energy metabolism and lipid peroxidation in erythrocytes, cells were incubated with increasing concentrations (0.5-10 mM) of hydrogen peroxide for 1 h at 37 degrees C and the main substances of energy metabolism (ATP, AMP, GTP and IMP) and one index of lipid peroxidation (malondialdehyde) were determined by HPLC on cell extracts. Using the same incubation conditions, the activity of AMP-deaminase was also determined. Under nonhaemolysing conditions (at up to 4 mM H2O2), oxidative stress produced, starting from 1 mM H2O2, progressive ATP depletion and a net decrease in the intracellular sum of adenine nucleotides (ATP + ADP + AMP), which were not paralleled by AMP formation. Concomitantly, the IMP level increased by up to 20-fold with respect to the value determined in control erythrocytes, when cells were challenged with the highest nonhaemolysing H2O2 concentration (4 mM). Efflux of inosine, hypoxanthine, xanthine and uric acid towards the extracellular medium was observed. The metabolic imbalance of erythrocytes following oxidative stress was due to a dramatic and unexpected activation of AMP-deaminase (a twofold increase of activity with respect to controls) that was already evident at the lowest dose of H2O2 used; this enzymatic activity increased with increasing H2O2 in the medium, and reached its maximum at 4 mM H2O2-treated erythrocytes (10-fold higher activity than controls). Generation of malondialdehyde was strictly related to the dose of H2O2, being detectable at the lowest H2O2 concentration and increasing without appreciable haemolysis up to 4 mM H2O2. Besides demonstrating a close relationship between lipid peroxidation and haemolysis, these data suggest that glycolytic enzymes are moderately affected by oxygen radical action and strongly indicate, in the change of AMP-deaminase activity, a highly sensitive enzymatic site responsible for a profound modification of erythrocyte energy metabolism during oxidative stress.
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Affiliation(s)
- B Tavazzi
- Department of Experimental Medicine and Biochemical Sciences, University of Rome 'Tor Vergata', Italy
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