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Lonappan DK, Kuruvalli G, Shaik AH, Hebbani AV, Reddyvari H, Damodara Reddy V, Vadamalai V. Alcohol-induced hormonal and metabolic alterations in plasma and erythrocytes-a gender-based study. Toxicol Mech Methods 2024; 34:350-358. [PMID: 38031273 DOI: 10.1080/15376516.2023.2290071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/27/2023] [Indexed: 12/01/2023]
Abstract
PURPOSE This study aimed to understand the gender-specific alcohol-induced biochemical changes and TBARS association with the endocrine system. METHODS Human male and female subjects ranging from 35 ± 10 years old with an 8-10-year drinking history were included in the study. RESULTS The results demonstrated that testosterone levels were lower in male alcoholics and higher in female alcoholics, as well as higher estrogen and cortisol levels in both genders. In addition, we found lower T3, T4, and thyroid-stimulating hormone (TSH) levels in alcoholics of both sexes. Furthermore, plasma TBARS, protein carbonyls, nitrite, and nitrate levels increased significantly with concomitant decrease in reduced glutathione (GSH), catalase (CAT), superoxide dismutase (SOD) and glutathione peroxidase (GPx) activities in both male and female alcoholics. Furthermore, erythrocyte lysate nitrite and nitrate levels membrane total cholesterol, phospholipid and cholesterol/phospholipid (C/P) ratio with lower total membrane proteins in both genders of alcoholics. SDS-PAGE analysis of erythrocyte membrane proteins revealed increased density of band 3, protein 4.1, 4.2, 4.9 and glycophorins, whereas decreases in spectrin (α and β) were observed in both genders of alcoholics. Besides, alcoholics of both sexes had a lower ability to resist osmotic hemolysis. Plasma TBARS was negatively correlated with testosterone, TSH, T3 and T4 in male alcoholics, moreover, estradiol and cortisol were positively correlated in males and females respectively. CONCLUSION Female alcoholics may be more susceptible to osmotic hemolysis due to increased erythrocyte membrane lipid peroxidation with decreased antioxidant status, which results in an altered membrane C/P ratio and membrane protein composition.
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Affiliation(s)
| | - Gouthami Kuruvalli
- Department of Biochemistry, REVA University, Bangalore. Karnataka, India
| | - Althaf Hussain Shaik
- Department of Zoology, College of Science, King Saud University, Riyadh, Saudi Arabia
| | | | - Hymavathi Reddyvari
- Department of Thoracic Medicine and Surgery, Temple University, Philadelphia, PA, USA
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Remigante A, Spinelli S, Pusch M, Sarikas A, Morabito R, Marino A, Dossena S. Role of SLC4 and SLC26 solute carriers during oxidative stress. Acta Physiol (Oxf) 2022; 235:e13796. [PMID: 35143116 PMCID: PMC9542443 DOI: 10.1111/apha.13796] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Revised: 02/03/2022] [Accepted: 02/07/2022] [Indexed: 12/13/2022]
Abstract
Bicarbonate is one of the major anions in mammalian tissues and fluids, is utilized by various exchangers to transport other ions and organic substrates across cell membranes and plays a critical role in cell and systemic pH homoeostasis. Chloride/bicarbonate (Cl−/HCO3−) exchangers are abundantly expressed in erythrocytes and epithelial cells and, as a consequence, are particularly exposed to oxidants in the systemic circulation and at the interface with the external environment. Here, we review the physiological functions and pathophysiological alterations of Cl−/HCO3− exchangers belonging to the solute carriers SLC4 and SLC26 superfamilies in relation to oxidative stress. Particularly well studied is the impact of oxidative stress on the red blood cell SLC4A1/AE1 (Band 3 protein), of which the function seems to be directly affected by oxidative stress and possibly involves oxidation of the transporter itself or its interacting proteins, with detrimental consequences in oxidative stress‐related diseases including inflammation, metabolic dysfunctions and ageing. The effect of oxidative stress on SLC26 members was less extensively explored. Indirect evidence suggests that SLC26 transporters can be target as well as determinants of oxidative stress, especially when their expression is abolished or dysregulated.
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Affiliation(s)
- Alessia Remigante
- Biophysics Institute National Research Council Genova Italy
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Sara Spinelli
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Michael Pusch
- Biophysics Institute National Research Council Genova Italy
| | - Antonio Sarikas
- Institute of Pharmacology and Toxicology Paracelsus Medical University Salzburg Austria
| | - Rossana Morabito
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Angela Marino
- Department of Chemical Biological, Pharmaceutical and Environmental Sciences University of Messina Messina Italy
| | - Silvia Dossena
- Institute of Pharmacology and Toxicology Paracelsus Medical University Salzburg Austria
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Jennings ML. Cell Physiology and Molecular Mechanism of Anion Transport by Erythrocyte Band 3/AE1. Am J Physiol Cell Physiol 2021; 321:C1028-C1059. [PMID: 34669510 PMCID: PMC8714990 DOI: 10.1152/ajpcell.00275.2021] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The major transmembrane protein of the red blood cell, known as band 3, AE1, and SLC4A1, has two main functions: 1) catalysis of Cl-/HCO3- exchange, one of the steps in CO2 excretion; 2) anchoring the membrane skeleton. This review summarizes the 150 year history of research on red cell anion transport and band 3 as an experimental system for studying membrane protein structure and ion transport mechanisms. Important early findings were that red cell Cl- transport is a tightly coupled 1:1 exchange and band 3 is labeled by stilbenesulfonate derivatives that inhibit anion transport. Biochemical studies showed that the protein is dimeric or tetrameric (paired dimers) and that there is one stilbenedisulfonate binding site per subunit of the dimer. Transport kinetics and inhibitor characteristics supported the idea that the transporter acts by an alternating access mechanism with intrinsic asymmetry. The sequence of band 3 cDNA provided a framework for detailed study of protein topology and amino acid residues important for transport. The identification of genetic variants produced insights into the roles of band 3 in red cell abnormalities and distal renal tubular acidosis. The publication of the membrane domain crystal structure made it possible to propose concrete molecular models of transport. Future research directions include improving our understanding of the transport mechanism at the molecular level and of the integrative relationships among band 3, hemoglobin, carbonic anhydrase, and gradients (both transmembrane and subcellular) of HCO3-, Cl-, O2, CO2, pH, and NO metabolites during pulmonary and systemic capillary gas exchange.
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Affiliation(s)
- Michael L Jennings
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States
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4
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Bartesaghi S, Herrera D, Martinez DM, Petruk A, Demicheli V, Trujillo M, Martí MA, Estrín DA, Radi R. Tyrosine oxidation and nitration in transmembrane peptides is connected to lipid peroxidation. Arch Biochem Biophys 2017; 622:9-25. [PMID: 28412156 DOI: 10.1016/j.abb.2017.04.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 04/07/2017] [Accepted: 04/11/2017] [Indexed: 12/30/2022]
Abstract
Tyrosine nitration is an oxidative post-translational modification that can occur in proteins associated to hydrophobic bio-structures such as membranes and lipoproteins. In this work, we have studied tyrosine nitration in membranes using a model system consisting of phosphatidylcholine liposomes with pre-incorporated tyrosine-containing 23 amino acid transmembrane peptides. Tyrosine residues were located at positions 4, 8 or 12 of the amino terminal, resulting in different depths in the bilayer. Tyrosine nitration was accomplished by exposure to peroxynitrite and a peroxyl radical donor or hemin in the presence of nitrite. In egg yolk phosphatidylcholine liposomes, nitration was highest for the peptide with tyrosine at position 8 and dramatically increased as a function of oxygen levels. Molecular dynamics studies support that the proximity of the tyrosine phenolic ring to the linoleic acid peroxyl radicals contributes to the efficiency of tyrosine oxidation. In turn, α-tocopherol inhibited both lipid peroxidation and tyrosine nitration. The mechanism of tyrosine nitration involves a "connecting reaction" by which lipid peroxyl radicals oxidize tyrosine to tyrosyl radical and was fully recapitulated by computer-assisted kinetic simulations. Altogether, this work underscores unique characteristics of the tyrosine oxidation and nitration process in lipid-rich milieu that is fueled via the lipid peroxidation process.
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Affiliation(s)
- Silvina Bartesaghi
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Departamento de Educación Médica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay.
| | - Daniel Herrera
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay
| | - Débora M Martinez
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay
| | - Ariel Petruk
- Departamento de Química Inorgánica, Analítica y Química-Física and INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Cuidad Universitaria, Pab 2, C1428EHA, Buenos Aires, Argentina
| | - Verónica Demicheli
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay
| | - Madia Trujillo
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay
| | - Marcelo A Martí
- Departamento de Química Biológica and IQUIBICEN-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Cuidad Universitaria, Pab 2, C1428EHA, Buenos Aires, Argentina
| | - Darío A Estrín
- Departamento de Química Inorgánica, Analítica y Química-Física and INQUIMAE-CONICET, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Cuidad Universitaria, Pab 2, C1428EHA, Buenos Aires, Argentina
| | - Rafael Radi
- Departamento de Bioquímica, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay; Center for Free Radical and Biomedical Research, Facultad de Medicina, Universidad de la República, Avda. Gral. Flores 2125, Montevideo 11800, Uruguay.
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SO4 = uptake and catalase role in preconditioning after H2O2-induced oxidative stress in human erythrocytes. Pflugers Arch 2016; 469:235-250. [DOI: 10.1007/s00424-016-1927-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2016] [Revised: 12/04/2016] [Accepted: 12/06/2016] [Indexed: 10/20/2022]
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6
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Bulle S, Reddy VD, Padmavathi P, Maturu P, Puvvada PK, Nallanchakravarthula V. Association between alcohol-induced erythrocyte membrane alterations and hemolysis in chronic alcoholics. J Clin Biochem Nutr 2016; 60:63-69. [PMID: 28163384 PMCID: PMC5281527 DOI: 10.3164/jcbn.16-16] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Accepted: 03/08/2016] [Indexed: 12/12/2022] Open
Abstract
The present study aimed to understand the association between erythrocyte membrane alterations and hemolysis in chronic alcoholics. Study was conducted on human male volunteers aged between 35-45 years with a drinking history of 8-10 years. Results showed that plasma marker enzymes AST, ALT, ALP and γGT were increased in alcoholic subjects. Plasma and erythrocyte membrane lipid peroxidation, erythrocyte lysate nitric oxide (NOx) levels were also increased significantly in alcoholics. Furthermore, erythrocyte membrane protein carbonyls, total cholesterol, phospholipid and cholesterol/phospholipid (C/P) ratio were increased in alcoholics. SDS-PAGE analysis of erythrocyte membrane proteins revealed that increased density of band 3, protein 4.2, 4.9, actin and glycophorins, whereas glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and glycophorin A showed slight increase, however, decreased ankyrin with no change in spectrins (α and β) and protein 4.1 densities were observed in alcoholics. Moreover, alcoholics red blood cells showed altered morphology with decreased resistance to osmotic hemolysis. Increased hemolysis showed strong positive association with lipid peroxidation (r = 0.703, p<0.05), protein carbonyls (r = 0.754, p<0.05), lysate NOx (r = 0.654, p<0.05) and weak association with C/P ratio (r = 0.240, p<0.05). Bottom line, increased lipid and protein oxidation, altered membrane C/P ratio and membrane cytoskeletal protein profile might be responsible for the increased hemolysis in alcoholics.
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Affiliation(s)
- Saradamma Bulle
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur - 515 003, AP, India
| | - Vaddi Damodara Reddy
- Department of Biochemistry, Sri Krishnadevaraya University, Anantapur - 515 003, AP, India
| | - Pannuru Padmavathi
- Oil Technological Research Institute, Jawaharlal Nehru Technological University, Anantapur - 515 001, AP, India
| | - Paramahamsa Maturu
- Department of Pediatrics, Texas Children's Hospital, Baylor College of Medicine, Houston, TX-77030, USA
| | - Pavan Kumar Puvvada
- DR Biosciences, Research and Development Institute, Jayanagar, Bengaluru, Karnataka - 560 011, India
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7
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Protective Effect of Sundakai (Solanum torvum) Seed Protein (SP) Against Oxidative Membrane Damage in Human Erythrocytes. J Membr Biol 2015; 248:1137-44. [DOI: 10.1007/s00232-015-9831-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 08/06/2015] [Indexed: 10/23/2022]
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8
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Maturu P, Vaddi DR, Pannuru P, Nallanchakravarthula V. Modification of Erythrocyte Membrane Proteins, Enzymes and Transport Mechanisms in Chronic Alcoholics: An In vivo and In vitro Study. Alcohol Alcohol 2013; 48:679-86. [DOI: 10.1093/alcalc/agt071] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
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9
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Abstract
SIGNIFICANCE The physiological mechanism(s) for recognition and removal of red blood cells (RBCs) from circulation after 120 days of its lifespan is not fully understood. Many of the processes thought to be associated with the removal of RBCs involve oxidative stress. We have focused on hemoglobin (Hb) redox reactions, which is the major source of RBC oxidative stress. RECENT ADVANCES The importance of Hb redox reactions have been shown to originate in large parts from the continuous slow autoxidation of Hb producing superoxide and its dramatic increase under hypoxic conditions. In addition, oxidative stress has been shown to be associated with redox reactions that originate from Hb reactions with nitrite and nitric oxide (NO) and the resultant formation of highly toxic peroxynitrite when NO reacts with superoxide released during Hb autoxidation. CRITICAL ISSUES The interaction of Hb, particularly under hypoxic conditions with band 3 of the RBC membrane is critical for the generating the RBC membrane changes that trigger the removal of cells from circulation. These changes include exposure of antigenic sites, increased calcium leakage into the RBC, and the resultant leakage of potassium out of the RBC causing cell shrinkage and impaired deformability. FUTURE DIRECTIONS The need to understand the oxidative damage to specific membrane proteins that result from redox reactions occurring when Hb is bound to the membrane. Proteomic studies that can pinpoint the specific proteins damaged under different conditions will help elucidate the cellular aging processes that result in cells being removed from circulation.
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Affiliation(s)
- Joseph M Rifkind
- Molecular Dynamics Section, National Institute on Aging, Baltimore, MD 21224, USA.
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10
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Maeng HJ, Bang YJ, Chung SJ. Functional impairment of P-glycoprotein by sodium nitroprusside pretreatment in mouse brain capillary endothelial cells. Arch Pharm Res 2012; 35:1215-21. [PMID: 22864744 DOI: 10.1007/s12272-012-0712-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2012] [Revised: 02/27/2012] [Accepted: 03/13/2012] [Indexed: 11/29/2022]
Abstract
We examined whether pretreatment of mouse brain blood vessel endothelial cell clone 4 (MBEC4) cells with sodium nitroprusside (SNP), a NO(x) donor, as an in vitro model of the bloodbrain barrier could affect P-glycoprotein (P-gp) functional activity. Uptake into the cells and MBEC4 plasma membrane vesicles (MPMVs) in the presence or absence of SNP pretreatment was used to investigate functional changes. Increased accumulation of [(3)H]vincristine, a widely used substrate for P-gp, into MBEC4 was observed upon SNP pretreatment, likely due to impaired P-gp function. To better understand the mechanism of the impairment, MPMVs were prepared and characterized in terms of purity and Na(+)-dependent glucose uptake. [(3)H]daunomycin uptake into MPMVs was diminished after SNP pretreatment in the presence of an ATP-regenerating system, indicating that the functional activity of P-gp was impaired after exposure to SNP. Under conditions of excess ATP, daunomycin uptake into the vesicles was still decreased after SNP pretreatment, indicating that SNP interacted directly with the transport system, but not with the ATP-regenerating system. Together, these results suggest that NO or NO(x) functionally impairs P-gp in the in vitro blood-brain barrier model with SNP pretreatment.
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Affiliation(s)
- Han-Joo Maeng
- College of Pharmacy, Inje University, Gimhae 621-749, Korea
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11
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Martínez V, Ugartondo V, Vinardell MP, Torres JL, Mitjans M. Grape epicatechin conjugates prevent erythrocyte membrane protein oxidation. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:4090-4095. [PMID: 22480260 DOI: 10.1021/jf2051784] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Epicatechin conjugates obtained from grape have shown antioxidant activity in various systems. However, how these conjugates exert their antioxidant benefits has not been widely studied. We assessed the activity of epicatechin and epicatechin conjugates on the erythrocyte membrane in the presence and absence of a peroxyl radical initiator, to increase our understanding of their mechanisms. Thus, we studied cell membrane fluidity by fluorescence anisotropy measurements, morphology of erythrocytes by scanning electron microscopy, and finally, red cell membrane proteins by sodium dodecyl sulfate-polyacrylamide gel electrophoresis. Our data showed that incubation of red cells in the presence of epicatechin derivatives altered membrane fluidity and erythrocyte morphology but not the membrane protein pattern. The presence in the medium of the peroxyl radical initiator 2,2'-azobis(amidinopropane) dihydrochloride (AAPH) resulted in membrane disruptions at all levels analyzed, causing changes in membrane fluidity, cell morphology, and protein degradation. The presence of antioxidants avoided protein oxidation, indicating that the interaction of epicatechin conjugates with the lipid bilayer might reduce the accessibility of AAPH to membranes, which could explain in part the inhibitory ability of these compounds against hemolysis induced by peroxidative insult.
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Affiliation(s)
- V Martínez
- Departament de Fisiologia, Facultat de Farmàcia, Universitat de Barcelona, Barcelona, Spain
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12
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Celedón G, González G, Lissi E, Cerda T, Bascuñant D, Lepeley M, Pazos F, Lanio ME, Alvarez C. Effect of pre-exposure of human erythrocytes to oxidants on the haemolytic activity of Sticholysin II. A comparison between peroxynitrite and hypochlorous acid. Free Radic Res 2010; 45:400-8. [DOI: 10.3109/10715762.2010.536838] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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13
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Yu KH, Maeng HJ, Chung SJ. Functional Implications of Transporters Under Nitrosative Stress Conditions. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2010. [DOI: 10.4333/kps.2010.40.3.139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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14
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A fluorescence study of human serum albumin binding sites modification by hypochlorite. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2008; 94:77-81. [PMID: 19036598 DOI: 10.1016/j.jphotobiol.2008.10.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2008] [Revised: 10/23/2008] [Accepted: 10/23/2008] [Indexed: 11/20/2022]
Abstract
A study has been made on the properties of human serum albumin (HSA) binding sites and how they are modified by pre-oxidation of the protein with hypochlorite. The oxidation extent was assessed from changes in the protein intrinsic fluorescence and production of carbonyl groups. HSA retains its solute binding capacity even after exposure to relatively large amounts of hypochlorite (up to 40 oxidant molecules per protein). From an analysis of the binding isotherms of dansyl sarcosine (DS) and dansyl-1-sulfonamide (DNSA) to native and hypochlorite treated albumin it is concluded that pre-oxidation of the protein reduces the number of active sites without affecting the binding capacity of the remaining binding sites. From DS and DNSA fluorescence anisotropy, Laurdan anisotropy and generalized polarization measurements, it is concluded that both Sites I and II in the native protein provide very rigid environments to the bound probes. These characteristics of the sites remain even after extensive treatment with hypochlorite. This stubbornness of HSA could allow the protein to maintain its function along its in vivo lifetime.
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Celedón G, González G, Barrientos D, Pino J, Venegas F, Lissi EA, Soto C, Martinez D, Alvarez C, Lanio ME. Stycholysin II, a cytolysin from the sea anemone Stichodactyla helianthus promotes higher hemolysis in aged red blood cells. Toxicon 2008; 51:1383-90. [PMID: 18423792 DOI: 10.1016/j.toxicon.2008.03.006] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2007] [Revised: 12/20/2007] [Accepted: 03/04/2008] [Indexed: 01/09/2023]
Abstract
We have investigated the relationship between the status of red blood cells (RBCs) and their susceptibility to toxin sticholysin II (StII) hemolytic activity; we have evaluated this effect in different RBC ensembles, comprising young and old cells, and in cells partially damaged by their pre-exposition to a free radical source. Upon action of StII, young cell populations are less prone to hemolysis than the whole population, while old cell populations and peroxyl-oxidized red cells are lysed faster than the whole population. Cell K(+) content was higher in young cells and lower in both senescent cells and in peroxyl-damaged cells relative to whole cell population. The relevance of cell K(+) content in St II-induced lysis was shown when external Na(+) was partially replaced by K(+); under this condition, RBC lysed faster in the presence of St II but no difference was observed among young cells, whole cells population and peroxyl-damaged cells; only old cells lysed faster that the whole population, response that can be due to an enhanced St II-induced pore formation as supported by evaluation of St II irreversible binding to RBC. It is concluded that this factor and the amount of intracellular K(+) are the dominant parameters that modulate the resistance of RBC to St II-induced lysis.
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Affiliation(s)
- Gloria Celedón
- Departamento de Fisiología, Facultad de Ciencias, Universidad de Valparaíso, Chile
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Minetti M, Pietraforte D, Straface E, Metere A, Matarrese P, Malorni W. Red blood cells as a model to differentiate between direct and indirect oxidation pathways of peroxynitrite. Methods Enzymol 2008; 440:253-72. [PMID: 18423223 DOI: 10.1016/s0076-6879(07)00816-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Red blood cells are the major physiological scavengers of reactive nitrogen species and have been proposed as real-time biomarkers of some vascular-related diseases. This chapter proposes that the erythrocyte is a suitable cell model for studying the modifications induced by peroxynitrite. Peroxynitrite decays both extra- and intracellularly as a function of cell density and CO(2) concentration, inducing the appearance of distinct cellular biomarkers, as well as the modulation of signaling and metabolism. Intracellular oxidations are due mostly to direct reactions of peroxynitrite with hemoglobin but also lead to the appearance of apoptotic biomarkers. Surface/membrane oxidations are due principally to indirect radical reactions generated by CO(2)-catalyzed peroxynitrite homolysis.
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Affiliation(s)
- Maurizio Minetti
- Departments of Cell Biology and Neurosciences, Istituto Superiore di Sanità, Rome, Italy
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17
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Romero N, Peluffo G, Bartesaghi S, Zhang H, Joseph J, Kalyanaraman B, Radi R. Incorporation of the Hydrophobic Probe N-t-BOC-l-tyrosine tert-Butyl Ester to Red Blood Cell Membranes To Study Peroxynitrite-Dependent Reactions. Chem Res Toxicol 2007; 20:1638-48. [DOI: 10.1021/tx700142a] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Natalia Romero
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Gonzalo Peluffo
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Silvina Bartesaghi
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Hao Zhang
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Joy Joseph
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Balaraman Kalyanaraman
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
| | - Rafael Radi
- Departamento de Bioquímica and Center for Free Radical and Biomedical Research and Departamento de Histología y Embriología, Facultad de Medicina, Universidad de la República, Montevideo, Uruguay, and Biophysics Research Institute and Free Radical Research Center, Medical College of Wisconsin, Milwaukee, Wisconsin 53226
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