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Bardyn M, Crettaz D, Rappaz B, Hamelin R, Armand F, Tissot JD, Turcatti G, Prudent M. Phosphoproteomics and morphology of stored human red blood cells treated by protein tyrosine phosphatases inhibitor. Blood Adv 2024; 8:1-13. [PMID: 37910801 PMCID: PMC10784683 DOI: 10.1182/bloodadvances.2023009964] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 10/17/2023] [Accepted: 10/24/2023] [Indexed: 11/03/2023] Open
Abstract
ABSTRACT The process of protein phosphorylation is involved in numerous cell functions. In particular, phosphotyrosine (pY) has been reported to play a role in red blood cell (RBC) functions, including the cytoskeleton organization. During their storage before transfusion, RBCs suffer from storage lesions that affect their energy metabolism and morphology. This study investigated the relationship between pY and the storage lesions. To do so, RBCs were treated (in the absence of calcium) with a protein tyrosine phosphatase inhibitor (orthovanadate [OV]) to stimulate phosphorylation and with 3 selective kinase inhibitors (KIs). Erythrocyte membrane proteins were studied by western blot analyses and phosphoproteomics (data are available via ProteomeXchange with identifier PXD039914) and cell morphology by digital holographic microscopy. The increase of pY triggered by OV treatment (inducing a global downregulation of pS and pT) disappeared during the storage. Phosphoproteomic analysis identified 609 phosphoproteins containing 1752 phosphosites, of which 41 pY were upregulated and 2 downregulated by OV. After these phosphorylation processes, the shape of RBCs shifted from discocytes to spherocytes, and the addition of KIs partially inhibited this transition. The KIs modulated either pY or pS and pT via diverse mechanisms related to cell shape, thereby affecting RBC morphology. The capacity of RBCs to maintain their function is central in transfusion medicine, and the presented results contribute to a better understanding of RBC biology.
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Affiliation(s)
- Manon Bardyn
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - David Crettaz
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - Benjamin Rappaz
- Biomolecular Screening Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Romain Hamelin
- Proteomics Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Florence Armand
- Proteomics Core Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Jean-Daniel Tissot
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
| | - Gerardo Turcatti
- Biomolecular Screening Facility, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Michel Prudent
- Laboratoire de Recherche sur les Produits Sanguins, Transfusion Interrégionale CRS, Epalinges, Switzerland
- Center for Research and Innovation in Clinical Pharmaceutical Sciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland
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Proteomic Analysis of the Role of the Adenylyl Cyclase-cAMP Pathway in Red Blood Cell Mechanical Responses. Cells 2022; 11:cells11071250. [PMID: 35406814 PMCID: PMC8997765 DOI: 10.3390/cells11071250] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/14/2022] [Accepted: 02/28/2022] [Indexed: 02/01/2023] Open
Abstract
Red blood cell (RBC) deformability is modulated by the phosphorylation status of the cytoskeletal proteins that regulate the interactions of integral transmembrane complexes. Proteomic studies have revealed that receptor-related signaling molecules and regulatory proteins involved in signaling cascades are present in RBCs. In this study, we investigated the roles of the cAMP signaling mechanism in modulating shear-induced RBC deformability and examined changes in the phosphorylation of the RBC proteome. We implemented the inhibitors of adenylyl cyclase (SQ22536), protein kinase A (H89), and phosphodiesterase (PDE) (pentoxifylline) to whole blood samples, applied 5 Pa shear stress (SS) for 300 s with a capillary tubing system, and evaluated RBC deformability using a LORRCA MaxSis. The inhibition of signaling molecules significantly deteriorated shear-induced RBC deformability (p < 0.05). Capillary SS slightly increased the phosphorylation of RBC cytoskeletal proteins. Tyrosine phosphorylation was significantly elevated by the modulation of the cAMP/PKA pathway (p < 0.05), while serine phosphorylation significantly decreased as a result of the inhibition of PDE (p < 0.05). AC is the core element of this signaling pathway, and PDE works as a negative feedback mechanism that could have potential roles in SS-induced RBC deformability. The cAMP/PKA pathway could regulate RBC deformability during capillary transit by triggering significant alterations in the phosphorylation state of RBCs.
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Endometriosis Susceptibility to Dapsone-Hydroxylamine-Induced Alterations Can Be Prevented by Licorice Intake: In Vivo and In Vitro Study. Int J Mol Sci 2021; 22:ijms22168476. [PMID: 34445180 PMCID: PMC8395227 DOI: 10.3390/ijms22168476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 11/26/2022] Open
Abstract
Endometriosis, an estrogen-dependent chronic gynecological disease, is characterized by a systemic inflammation that affects circulating red blood cells (RBC), by reducing anti-oxidant defenses. The aim of this study was to investigate the potential beneficial effects of licorice intake to protect RBCs from dapsone hydroxylamine (DDS-NHOH), a harmful metabolite of dapsone, commonly used in the treatment of many diseases. A control group (CG, n = 12) and a patient group (PG, n = 18) were treated with licorice extract (25 mg/day), for a week. Blood samples before (T0) and after (T1) treatment were analyzed for: i) band 3 tyrosine phosphorylation and high molecular weight aggregates; and ii) glutathionylation and carbonic anhydrase activity, in the presence or absence of adjunctive oxidative stress induced by DDS-NHOH. Results were correlated with plasma glycyrrhetinic acid (GA) concentrations, measured by HPLC–MS. Results showed that licorice intake decreased the level of DDS-NHOH-related oxidative alterations in RBCs, and the reduction was directly correlated with plasma GA concentration. In conclusion, in PG, the inability to counteract oxidative stress is a serious concern in the evaluation of therapeutic approaches. GA, by protecting RBC from oxidative assault, as in dapsone therapy, might be considered as a new potential tool for preventing further switching into severe endometriosis.
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Rogers SC, Ge X, Brummet M, Lin X, Timm DD, d'Avignon A, Garbow JR, Kao J, Prakash J, Issaian A, Eisenmesser EZ, Reisz JA, D'Alessandro A, Doctor A. Quantifying dynamic range in red blood cell energetics: Evidence of progressive energy failure during storage. Transfusion 2021; 61:1586-1599. [PMID: 33830505 DOI: 10.1111/trf.16395] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 01/26/2021] [Accepted: 03/09/2021] [Indexed: 12/13/2022]
Abstract
BACKGROUND During storage, red blood cells (RBCs) undergo significant biochemical and morphologic changes, referred to collectively as the "storage lesion". It was hypothesized that these defects may arise from disrupted oxygen-based regulation of RBC energy metabolism, with resultant depowering of intrinsic antioxidant systems. STUDY DESIGN AND METHODS As a function of storage duration, the dynamic range in RBC metabolic response to three models of biochemical oxidant stress (methylene blue, hypoxanthine/xanthine oxidase, and diamide) was assessed, comparing glycolytic flux by NMR and UHPLC-MS methodologies. Blood was processed/stored under standard conditions (AS-1 additive solution) with leukoreduction. Over a 6-week period, RBC metabolic and antioxidant status were assessed at baseline and following exposure to the three biochemical oxidant models. Comparison was made of glycolytic flux (1 H-NMR tracking of [2-13 C]-glucose and metabolomic phenotyping with [1,2,3-13 C3 ] glucose), reducing equivalent (NADPH/NADP+ ) recycling, and thiol-based (GSH/GSSG) antioxidant status. RESULTS As a function of storage duration, we observed the following: (1) a reduction in baseline hexose monophosphate pathway (HMP) flux, the sole pathway responsible for the regeneration of the essential reducing equivalent NADPH; with (2) diminished stress-based dynamic range in both overall glycolytic as well as proportional HMP flux. In addition, progressive with storage duration, RBCs showed (3) constraint in reducing equivalent (NADPH) recycling capacity, (4) loss of thiol based (GSH) recycling capacity, and (5) dysregulation of metabolon assembly at the cytoplasmic domain of Band 3 membrane protein (cdB3). CONCLUSION Blood storage disturbs normal RBC metabolic control, depowering antioxidant capacity and enhancing vulnerability to oxidative injury.
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Affiliation(s)
- Stephen C Rogers
- Department of Pediatrics, Divisions of Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.,The Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xia Ge
- Department of Chemistry, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - Mary Brummet
- Department of Pediatrics, Divisions of Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.,The Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Xue Lin
- Department of Pediatrics, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - David D Timm
- Department of Pediatrics, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - Andre d'Avignon
- Department of Chemistry, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - Joel R Garbow
- Department of Radiology, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - Jeff Kao
- Department of Chemistry, Washington University in Saint Louis, School of Medicine, Saint Louis, Missouri, USA
| | - Jaya Prakash
- Department of Pediatrics, Divisions of Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA
| | - Aaron Issaian
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Elan Z Eisenmesser
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Allan Doctor
- Department of Pediatrics, Divisions of Critical Care Medicine, University of Maryland School of Medicine, Baltimore, Maryland, USA.,The Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, Baltimore, Maryland, USA
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Tibaldi E, Federti E, Matte A, Iatcenko I, Wilson AB, Riccardi V, Pagano MA, De Franceschi L. Oxidation Impacts the Intracellular Signaling Machinery in Hematological Disorders. Antioxidants (Basel) 2020; 9:antiox9040353. [PMID: 32344529 PMCID: PMC7222375 DOI: 10.3390/antiox9040353] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 04/20/2020] [Accepted: 04/20/2020] [Indexed: 12/28/2022] Open
Abstract
The dynamic coordination between kinases and phosphatases is crucial for cell homeostasis, in response to different stresses. The functional connection between oxidation and the intracellular signaling machinery still remains to be investigated. In the last decade, several studies have highlighted the role of reactive oxygen species (ROS) as modulators directly targeting kinases, phosphatases, and downstream modulators, or indirectly acting on cysteine residues on kinases/phosphatases resulting in protein conformational changes with modulation of intracellular signaling pathway(s). Translational studies have revealed the important link between oxidation and signal transduction pathways in hematological disorders. The intricate nature of intracellular signal transduction mechanisms, based on the generation of complex networks of different types of signaling proteins, revealed the novel and important role of phosphatases together with kinases in disease mechanisms. Thus, therapeutic approaches to abnormal signal transduction pathways should consider either inhibition of overactivated/accumulated kinases or homeostatic signaling resetting through the activation of phosphatases. This review discusses the progress in the knowledge of the interplay between oxidation and cell signaling, involving phosphatase/kinase systems in models of globally distributed hematological disorders.
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Affiliation(s)
- Elena Tibaldi
- Department of Molecular Medicine, University of Padua, 35131 Padua, Italy; (E.T.); (M.A.P.)
| | - Enrica Federti
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Alessandro Matte
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Iana Iatcenko
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Anand B. Wilson
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Veronica Riccardi
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
| | - Mario Angelo Pagano
- Department of Molecular Medicine, University of Padua, 35131 Padua, Italy; (E.T.); (M.A.P.)
| | - Lucia De Franceschi
- Department of Medicine, University of Verona and AOUI Verona, 37134 Verona, Italy; (E.F.); (A.M.); (I.I.); (A.B.W.); (V.R.)
- Correspondence: ; Tel.: +39-045-812-4401
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Abstract
Oxygen (O2) delivery, which is fundamental to supporting patients with critical illness, is a function of blood O2 content and flow. This article reviews red blood cell (RBC) physiology and dysfunction relevant to disordered O2 delivery in the critically ill. Flow is the focus of O2 delivery regulation: O2 content is relatively fixed, whereas flow fluctuates greatly. Thus, blood flow volume and distribution vary to maintain coupling between O2 delivery and demand. This article reviews conventional RBC physiology influencing O2 delivery and introduces a paradigm for O2 delivery homeostasis based on coordinated gas transport and vascular signaling by RBCs.
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Affiliation(s)
- Stephen Rogers
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA
| | - Allan Doctor
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA.
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Remigante A, Morabito R, Marino A. Natural Antioxidants Beneficial Effects on Anion Exchange through Band 3 Protein in Human Erythrocytes. Antioxidants (Basel) 2019; 9:antiox9010025. [PMID: 31888111 PMCID: PMC7022719 DOI: 10.3390/antiox9010025] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/23/2019] [Accepted: 12/24/2019] [Indexed: 01/06/2023] Open
Abstract
Band 3 protein (B3p) exchanging Cl− and HCO3− through erythrocyte membranes is responsible for acid balance, ion distribution and gas exchange, thus accounting for homeostasis of both erythrocytes and entire organisms. Moreover, since B3p cross links with the cytoskeleton and the proteins underlying the erythrocyte membrane, its function also impacts cell shape and deformability, essential to adaptation of erythrocyte size to capillaries for pulmonary circulation. As growing attention has been directed toward this protein in recent years, the present review was conceived to report the most recent knowledge regarding B3p, with specific regard to its anion exchange capability under in vitro oxidative conditions. Most importantly, the role of natural antioxidants, i.e., curcumin, melatonin and Mg2+, in preventing detrimental oxidant effects on B3p is considered.
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Zhou S, Giannetto M, DeCourcey J, Kang H, Kang N, Li Y, Zheng S, Zhao H, Simmons WR, Wei HS, Bodine DM, Low PS, Nedergaard M, Wan J. Oxygen tension-mediated erythrocyte membrane interactions regulate cerebral capillary hyperemia. SCIENCE ADVANCES 2019; 5:eaaw4466. [PMID: 31149638 PMCID: PMC6541463 DOI: 10.1126/sciadv.aaw4466] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 04/17/2019] [Indexed: 05/24/2023]
Abstract
The tight coupling between cerebral blood flow and neural activity is a key feature of normal brain function and forms the basis of functional hyperemia. The mechanisms coupling neural activity to vascular responses, however, remain elusive despite decades of research. Recent studies have shown that cerebral functional hyperemia begins in capillaries, and red blood cells (RBCs) act as autonomous regulators of brain capillary perfusion. RBCs then respond to local changes of oxygen tension (PO2) and regulate their capillary velocity. Using ex vivo microfluidics and in vivo two-photon microscopy, we examined RBC capillary velocity as a function of PO2 and showed that deoxygenated hemoglobin and band 3 interactions on RBC membrane are the molecular switch that responds to local PO2 changes and controls RBC capillary velocity. Capillary hyperemia can be controlled by manipulating RBC properties independent of the neurovascular unit, providing an effective strategy to treat or prevent impaired functional hyperemia.
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Affiliation(s)
- Sitong Zhou
- Microsystems Engineering, Rochester Institute of Technology, Rochester, NY 14623, USA
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Michael Giannetto
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - James DeCourcey
- College of Osteopathic Medicine, University of New England, Biddeford, ME 04005, USA
| | - Hongyi Kang
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Ning Kang
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Yizeng Li
- Department of Mechanical Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Suilan Zheng
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Hetince Zhao
- New York University Langone Medical Center, New York, NY 10010, USA
| | | | - Helen S. Wei
- Rutgers New Jersey Medical School, Newark, NJ 07101, USA
| | - David M. Bodine
- National Human Genome Research Institute, Bethesda, MD 20894, USA
| | - Philip S. Low
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
| | - Jiandi Wan
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, NY 14642, USA
- Department of Chemical Engineering, University of California, Davis, Davis, CA 95616, USA
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Andrisani A, Donà G, Sabbadin C, Tibaldi E, Dessole F, Bosello Travain V, Marin L, Brunati AM, Ambrosini G, Armanini D, Ragazzi E, Bordin L. Ameliorative effect of myo-inositol on red blood cell alterations in polycystic ovary syndrome: in vitro study. Gynecol Endocrinol 2018; 34:233-237. [PMID: 29037103 DOI: 10.1080/09513590.2017.1391207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Polycystic ovary syndrome (PCOS)is a gynecological endocrine disorder which is associated with systemic inflammatory status inducing red blood cells (RBC) membrane alterations related to insulin resistance and testosterone levels which could be greatly improved by myo-inositol (MYO) uptake. In this study we aim to evaluate the effect of MYO in reducing oxidative-related alterations through in vitro study on PCOS RBC. Blood samples from two groups of volunteers, control group (CG, n = 12) and PCOS patient group (PG, n = 12), were analyzed for band 3 tyrosine phosphorylation (Tyr-P), high molecular weight aggregate (HMWA), IgG in RBC membranes, and glutathione (GSH) in cytosol, following O/N incubation in the presence or absence of MYO. PCOS RBC underwent oxidative stress as indicated by higher band 3 Tyr-P and HMWA and increased membrane bound autologous IgG. Twenty four hours (but not shorter time) MYO incubation, significantly improved both Tyr-P level and HMWA formation and concomitant membrane IgG binding. However, no relevant modification of GSH content was detected. PCOS RBC membranes are characterized by increased oxidized level and enhanced sensitivity to oxidative injuries leading to potential premature RBC removal. MYO treatment is effective in reducing oxidative related abnormalities in PCOS patients probably restoring the inositol phospholipid pools of the membranes.
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Affiliation(s)
- Alessandra Andrisani
- a Department of Women's and Children's Health , University of Padova , Padova , Italy
| | - Gabriella Donà
- b Department of Molecular Medicine- Biological Chemistry , University of Padova , Italy
| | - Chiara Sabbadin
- c Department of Medicine- Endocrinology , University of Padova , Padova , Italy
| | - Elena Tibaldi
- b Department of Molecular Medicine- Biological Chemistry , University of Padova , Italy
| | - Francesco Dessole
- d Department of Surgical, Microsurgical and Medical Sciences- Gynecologic and Obstetric Clinic , University of Sassari , Italy
| | | | - Loris Marin
- a Department of Women's and Children's Health , University of Padova , Padova , Italy
| | - Anna Maria Brunati
- b Department of Molecular Medicine- Biological Chemistry , University of Padova , Italy
| | - Guido Ambrosini
- a Department of Women's and Children's Health , University of Padova , Padova , Italy
| | - Decio Armanini
- c Department of Medicine- Endocrinology , University of Padova , Padova , Italy
| | - Eugenio Ragazzi
- e Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Italy
| | - Luciana Bordin
- b Department of Molecular Medicine- Biological Chemistry , University of Padova , Italy
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Andrisani A, Donà G, Sabbadin C, Dall'Acqua S, Tibaldi E, Roveri A, Bosello Travain V, Brunati AM, Ambrosini G, Ragazzi E, Armanini D, Bordin L. Dapsone hydroxylamine-mediated alterations in human red blood cells from endometriotic patients. Gynecol Endocrinol 2017; 33:928-932. [PMID: 28557604 DOI: 10.1080/09513590.2017.1332177] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Endometriosis, an estrogen-dependent chronic gynecological disease in women of reproductive age, is characterized by a systemic inflammation status involving also red blood cells (RBCs). In this study, we evaluated how the protein oxidative status could be involved in the worsening of RBC conditions due to dapsone intake in endometriotic women in potential treatment for skin or infection diseases. Blood samples from two groups of volunteers, control group (CG) and endometriosis patient group (PG), were analyzed for their content of band 3 tyrosine phosphorylation (Tyr-P) and high molecular weight aggregate (HMWA) in membranes, and glutathione (GSH) content and carbonic anhydrase (CA) activity in cytosol. In endometriotic patients, RBC showed the highest level of oxidative-related alterations both in membrane and cytosol. More interestingly, the addition of dapsone hydroxylamine (DDS-NHOH) could induce further increase of both membranes and cytosol markers, with an enhancement of CA activity reaching about 66% of the total cell enzyme amount. In conclusion, in PG the systemic inflammatory status leads to the inability of counteracting adjunctive oxidative stress, with a potential involvement of CA-related pathologies, such as glaucoma. Hence, the importance of the evaluation of therapeutic approaches worsening oxidative imbalance present in PG RBC is underlined.
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Affiliation(s)
- Alessandra Andrisani
- a Department of Women's and Children's Health , University of Padova , Padova , Italy
| | - Gabriella Donà
- b Department of Molecular Medicine - Biological Chemistry , University of Padova , Padova , Italy
| | - Chiara Sabbadin
- c Department of Medicine - Endocrinology , University of Padova , Padova , Italy
| | - Stefano Dall'Acqua
- d Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Padova , Italy
| | - Elena Tibaldi
- b Department of Molecular Medicine - Biological Chemistry , University of Padova , Padova , Italy
| | - Antonella Roveri
- b Department of Molecular Medicine - Biological Chemistry , University of Padova , Padova , Italy
| | | | - Anna Maria Brunati
- b Department of Molecular Medicine - Biological Chemistry , University of Padova , Padova , Italy
| | - Guido Ambrosini
- a Department of Women's and Children's Health , University of Padova , Padova , Italy
| | - Eugenio Ragazzi
- d Department of Pharmaceutical and Pharmacological Sciences , University of Padova , Padova , Italy
| | - Decio Armanini
- c Department of Medicine - Endocrinology , University of Padova , Padova , Italy
| | - Luciana Bordin
- b Department of Molecular Medicine - Biological Chemistry , University of Padova , Padova , Italy
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11
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Kesely KR, Pantaleo A, Turrini FM, Olupot-Olupot P, Low PS. Inhibition of an Erythrocyte Tyrosine Kinase with Imatinib Prevents Plasmodium falciparum Egress and Terminates Parasitemia. PLoS One 2016; 11:e0164895. [PMID: 27768734 PMCID: PMC5074466 DOI: 10.1371/journal.pone.0164895] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/03/2016] [Indexed: 11/18/2022] Open
Abstract
With half of the world's population at risk for malaria infection and with drug resistance on the rise, the search for mutation-resistant therapies has intensified. We report here a therapy for Plasmodium falciparum malaria that acts by inhibiting the phosphorylation of erythrocyte membrane band 3 by an erythrocyte tyrosine kinase. Because tyrosine phosphorylation of band 3 causes a destabilization of the erythrocyte membrane required for parasite egress, inhibition of the erythrocyte tyrosine kinase leads to parasite entrapment and termination of the infection. Moreover, because one of the kinase inhibitors to demonstrate antimalarial activity is imatinib, i.e. an FDA-approved drug authorized for use in children, translation of the therapy into the clinic will be facilitated. At a time when drug resistant strains of P. falciparum are emerging, a strategy that targets a host enzyme that cannot be mutated by the parasite should constitute a therapeutic mechanism that will retard evolution of resistance.
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Affiliation(s)
- Kristina R. Kesely
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, Sassari, Italy
| | - Francesco M. Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
| | - Peter Olupot-Olupot
- Department of Paediatrics/Research Unit, Mbale Regional Referral Hospital, Mbale, Uganda
| | - Philip S. Low
- Purdue Institute for Drug Discovery, Purdue University, West Lafayette, 47907, United States of America
- Purdue Department of Chemistry, Purdue University, West Lafayette, 47907, United States of America
- * E-mail:
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12
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Band 3 Erythrocyte Membrane Protein Acts as Redox Stress Sensor Leading to Its Phosphorylation by p (72) Syk. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2015; 2016:6051093. [PMID: 27034738 PMCID: PMC4806680 DOI: 10.1155/2016/6051093] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 10/19/2015] [Accepted: 10/26/2015] [Indexed: 11/17/2022]
Abstract
In erythrocytes, the regulation of the redox sensitive Tyr phosphorylation of band 3 and its functions are still partially defined. A role of band 3 oxidation in regulating its own phosphorylation has been previously suggested. The current study provides evidences to support this hypothesis: (i) in intact erythrocytes, at 2 mM concentration of GSH, band 3 oxidation, and phosphorylation, Syk translocation to the membrane and Syk phosphorylation responded to the same micromolar concentrations of oxidants showing identical temporal variations; (ii) the Cys residues located in the band 3 cytoplasmic domain are 20-fold more reactive than GSH; (iii) disulfide linked band 3 cytoplasmic domain docks Syk kinase; (iv) protein Tyr phosphatases are poorly inhibited at oxidant concentrations leading to massive band 3 oxidation and phosphorylation. We also observed that hemichromes binding to band 3 determined its irreversible oxidation and phosphorylation, progressive hemolysis, and serine hyperphosphorylation of different cytoskeleton proteins. Syk inhibitor suppressed the phosphorylation of band 3 also preventing serine phosphorylation changes and hemolysis. Our data suggest that band 3 acts as redox sensor regulating its own phosphorylation and that hemichromes leading to the protracted phosphorylation of band 3 may trigger a cascade of events finally leading to hemolysis.
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Sega MF, Chu H, Christian JA, Low PS. Fluorescence assay of the interaction between hemoglobin and the cytoplasmic domain of erythrocyte membrane band 3. Blood Cells Mol Dis 2015; 55:266-71. [PMID: 26227857 DOI: 10.1016/j.bcmd.2015.07.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 07/07/2015] [Indexed: 10/23/2022]
Abstract
Oxygen tension has emerged as a potent regulator of multiple erythrocyte properties, including glucose metabolism, cell volume, ATP release, and cytoskeletal organization. Because hemoglobin (Hb)(1) binds to the cytoplasmic domain of band 3 (cdb3) in an oxygen dependent manner, with deoxyHb exhibiting significantly greater affinity for cdb3 than oxyHb, the deoxyHb-cdb3 interaction has been hypothesized to constitute the molecular switch for all O2-controlled erythrocyte processes. In this study, we describe a rapid and accurate method for quantitating the interaction of deoxyHb binding to cdb3. For this purpose, enhanced green fluorescent protein (eGFP) is fused to the COOH-terminus of cdb3, and the binding of Hb to the NH2-terminus of cdb3-eGFP is quantitated by Hb-mediated quenching of cdb3-eGFP fluorescence. As expected, the intensity of cdb3-eGFP fluorescence decreases only slightly following addition of oxyHb. However, upon deoxygenation of the same Hb-cdb3 solution, the fluorescence decreases dramatically (i.e. confirming that deoxyHb exhibits much greater affinity for cdb3 than oxyHb). Using this fluorescence quenching method, we not only confirm previously established characteristics of the Hb-cdb3 interaction, but also establish an assay that can be exploited to screen for inhibitors of the sickle Hb-cdb3 interaction that accelerates sickle Hb polymerization.
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Affiliation(s)
- Martiana F Sega
- Department of Chemistry, Purdue University, 720 Oval Dr., West Lafayette, Indiana 47907, United States; Department of Biology, East Georgia State College, Payne Hall, 1120 15th St., Augusta, GA 30912 United States
| | - Haiyan Chu
- Department of Chemistry, Purdue University, 720 Oval Dr., West Lafayette, Indiana 47907, United States
| | - John A Christian
- Department of Comparative Pathobiology, Purdue University, 625 Harrison St., West Lafayette, Indiana 47907, United States
| | - Philip S Low
- Department of Chemistry, Purdue University, 720 Oval Dr., West Lafayette, Indiana 47907, United States.
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Shimo H, Arjunan SNV, Machiyama H, Nishino T, Suematsu M, Fujita H, Tomita M, Takahashi K. Particle Simulation of Oxidation Induced Band 3 Clustering in Human Erythrocytes. PLoS Comput Biol 2015; 11:e1004210. [PMID: 26046580 PMCID: PMC4457884 DOI: 10.1371/journal.pcbi.1004210] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2014] [Accepted: 02/24/2015] [Indexed: 01/06/2023] Open
Abstract
Oxidative stress mediated clustering of membrane protein band 3 plays an essential role in the clearance of damaged and aged red blood cells (RBCs) from the circulation. While a number of previous experimental studies have observed changes in band 3 distribution after oxidative treatment, the details of how these clusters are formed and how their properties change under different conditions have remained poorly understood. To address these issues, a framework that enables the simultaneous monitoring of the temporal and spatial changes following oxidation is needed. In this study, we established a novel simulation strategy that incorporates deterministic and stochastic reactions with particle reaction-diffusion processes, to model band 3 cluster formation at single molecule resolution. By integrating a kinetic model of RBC antioxidant metabolism with a model of band 3 diffusion, we developed a model that reproduces the time-dependent changes of glutathione and clustered band 3 levels, as well as band 3 distribution during oxidative treatment, observed in prior studies. We predicted that cluster formation is largely dependent on fast reverse reaction rates, strong affinity between clustering molecules, and irreversible hemichrome binding. We further predicted that under repeated oxidative perturbations, clusters tended to progressively grow and shift towards an irreversible state. Application of our model to simulate oxidation in RBCs with cytoskeletal deficiency also suggested that oxidation leads to more enhanced clustering compared to healthy RBCs. Taken together, our model enables the prediction of band 3 spatio-temporal profiles under various situations, thus providing valuable insights to potentially aid understanding mechanisms for removing senescent and premature RBCs. In order to maintain a steady internal environment, our bodies must be able to specifically recognize old and damaged red blood cells (RBCs), and remove them from the circulation in a timely manner. Clusters of membrane protein band 3, which form in response to elevated oxidative damage, serve as essential molecular markers that initiate this cell removal process. However, little is known about the details of how these clusters are formed and how their properties change under different conditions. To understand these mechanisms in detail, we developed a computational model that enables the prediction of the time course profiles of metabolic intermediates, as well as the visualization of the resulting band 3 distribution during oxidative treatment. Our model predictions were in good agreement with previous published experimental data, and provided predictive insights on the key factors of cluster formation. Furthermore, simulation experiments of the effects of multiple oxidative pulses and cytoskeletal defect using the model also suggested that clustering is enhanced under such conditions. Analyses using our model can provide hypotheses and suggest experiments to aid the understanding of the physiology of anemia-associated RBC disorders, and optimization of quality control of RBCs in stored blood.
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Affiliation(s)
- Hanae Shimo
- Laboratory for Biochemical Simulation, RIKEN Quantitative Biology Center, Osaka, Japan
- Department of Biochemistry, School of Medicine, Keio University, Shinjuku, Tokyo, Japan
| | | | - Hiroaki Machiyama
- Laboratory for Biochemical Simulation, RIKEN Quantitative Biology Center, Osaka, Japan
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Taiko Nishino
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
| | - Makoto Suematsu
- Department of Biochemistry, School of Medicine, Keio University, Shinjuku, Tokyo, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
| | - Hideaki Fujita
- Laboratory for Biochemical Simulation, RIKEN Quantitative Biology Center, Osaka, Japan
- Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Masaru Tomita
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
- Department of Environment and Information Studies, Keio University, Fujisawa, Kanagawa, Japan
| | - Koichi Takahashi
- Laboratory for Biochemical Simulation, RIKEN Quantitative Biology Center, Osaka, Japan
- Institute for Advanced Biosciences, Keio University, Tsuruoka, Yamagata, Japan
- * E-mail:
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15
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Secchi C, Carta M, Crescio C, Spano A, Arras M, Caocci G, Galimi F, La Nasa G, Pippia P, Turrini F, Pantaleo A. T cell tyrosine phosphorylation response to transient redox stress. Cell Signal 2015; 27:777-88. [PMID: 25572700 DOI: 10.1016/j.cellsig.2014.12.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2014] [Revised: 12/09/2014] [Accepted: 12/24/2014] [Indexed: 12/29/2022]
Abstract
Reactive Oxygen Species (ROS) are crucial to multiple biological processes involved in the pathophysiology of inflammation, and are also involved in redox signaling responses. Although previous reports have described an association between oxidative events and the modulation of innate immunity, a role for redox signaling in T cell mediated adaptive immunity has not been described yet. This work aims at assessing if T cells can sense redox stress through protein sulfhydryl oxidation and respond with tyrosine phosphorylation changes. Our data show that Jurkat T cells respond to -SH group oxidation with specific tyrosine phosphorylation events. The release of T cell cytokines TNF, IFNγ and IL2 as well as the expression of a number of receptors are affected by those changes. Additionally, experiments with spleen tyrosine kinase (Syk) inhibitors showed a major involvement of Syk in these responses. The experiments described herein show a link between cysteine oxidation and tyrosine phosphorylation changes in T cells, as well as a novel mechanism by which Syk inhibitors exert their anti-inflammatory activity through the inhibition of a response initiated by ROS.
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Affiliation(s)
- Christian Secchi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100, Sassari, Italy
| | - Marissa Carta
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Claudia Crescio
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Alessandra Spano
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Marcella Arras
- Haematology, Hospital Binaghi, ASL 8 Cagliari, I-09126, Cagliari, Italy
| | - Giovanni Caocci
- Haematology, Department of Medical Sciences, University of Cagliari, I-09042 Cagliari, Italy
| | - Francesco Galimi
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy; Istituto Nazionale Biostrutture e Biosistemi, University of Sassari, I-07100, Sassari, Italy
| | - Giorgio La Nasa
- Haematology, Department of Medical Sciences, University of Cagliari, I-09042 Cagliari, Italy
| | - Proto Pippia
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy
| | - Francesco Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, I-10126 Turin, Italy
| | - Antonella Pantaleo
- Department of Biomedical Sciences, University of Sassari, I-07100 Sassari, Italy.
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16
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Lutz HU, Bogdanova A. Mechanisms tagging senescent red blood cells for clearance in healthy humans. Front Physiol 2013; 4:387. [PMID: 24399969 PMCID: PMC3872327 DOI: 10.3389/fphys.2013.00387] [Citation(s) in RCA: 135] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 12/09/2013] [Indexed: 01/17/2023] Open
Abstract
This review focuses on the analysis and evaluation of the diverse senescence markers suggested to prime red blood cells (RBC) for clearance in humans. These tags develop in the course of biochemical and structural alterations accompanying RBC aging, as the decrease of activities of multiple enzymes, the gradual accumulation of oxidative damage, the loss of membrane in form of microvesicles, the redistribution of ions and alterations in cell volume, density, and deformability. The actual tags represent the penultimate galactosyl residues, revealed by desialylation of glycophorins, or the aggregates of the anion exchanger (band 3 protein) to which anti-galactose antibodies bind in the first and anti-band 3 naturally occurring antibodies (NAbs) in the second case. While anti-band 3 NAbs bind to the carbohydrate-free portion of band 3 aggregates in healthy humans, induced anti-lactoferrin antibodies bind to the carbohydrate-containing portion of band 3 and along with anti-band 3 NAbs may accelerated clearance of senescent RBC in patients with anti-neutrophil cytoplasmic antibodies (ANCA). Exoplasmically accessible phosphatidylserine (PS) and the alterations in the interplay between CD47 on RBC and its receptor on macrophages, signal regulatory protein alpha (SIRPalpha protein), were also reported to induce erythrocyte clearance. We discuss the relevance of each mechanism and analyze the strength of the data.
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Affiliation(s)
- Hans U Lutz
- Department of Biology, Institute of Biochemistry ETH Zurich, Zurich, Switzerland
| | - Anna Bogdanova
- Vetsuisse Faculty, Zurich Center for Integrative Human Physiology (ZIHP), Institute of Veterinary Physiology, University of Zurich Zurich, Switzerland
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17
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Donà G, Kožuh I, Brunati AM, Andrisani A, Ambrosini G, Bonanni G, Ragazzi E, Armanini D, Clari G, Bordin L. Effect of astaxanthin on human sperm capacitation. Mar Drugs 2013; 11:1909-19. [PMID: 23736766 PMCID: PMC3721213 DOI: 10.3390/md11061909] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/26/2013] [Accepted: 05/20/2013] [Indexed: 01/08/2023] Open
Abstract
In order to be able to fertilize oocytes, human sperm must undergo a series of morphological and structural alterations, known as capacitation. It has been shown that the production of endogenous sperm reactive oxygen species (ROS) plays a key role in causing cells to undergo a massive acrosome reaction (AR). Astaxanthin (Asta), a photo-protective red pigment belonging to the carotenoid family, is recognized as having anti-oxidant, anti-cancer, anti-diabetic and anti-inflammatory properties and is present in many dietary supplements. This study evaluates the effect of Asta in a capacitating buffer which induces low ROS production and low percentages of acrosome-reacted cells (ARC). Sperm cells were incubated in the presence or absence of increasing concentrations of Asta or diamide (Diam) and analyzed for their ROS production, Tyr-phosphorylation (Tyr-P) pattern and percentages of ARC and non-viable cells (NVC). Results show that Asta ameliorated both sperm head Tyr-P and ARC values without affecting the ROS generation curve, whereas Diam succeeded in enhancing the Tyr-P level but only of the flagellum without increasing ARC values. It is suggested that Asta can be inserted in the membrane and therefore create capacitation-like membrane alteration which allow Tyr-P of the head. Once this has occurred, AR can take place and involves a higher numbers of cells.
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Affiliation(s)
- Gabriella Donà
- Department of Molecular Medicine-Biological Chemistry, University of Padova, Padova 35131, Italy; E-Mails: (G.D.); (I.K.); (A.M.B.); (G.C.)
| | - Ivana Kožuh
- Department of Molecular Medicine-Biological Chemistry, University of Padova, Padova 35131, Italy; E-Mails: (G.D.); (I.K.); (A.M.B.); (G.C.)
| | - Anna Maria Brunati
- Department of Molecular Medicine-Biological Chemistry, University of Padova, Padova 35131, Italy; E-Mails: (G.D.); (I.K.); (A.M.B.); (G.C.)
| | - Alessandra Andrisani
- Department of Women’s and Chilren’s Health, University of Padova, Padova 35131, Italy; E-Mails: (A.A.); (G.A.)
| | - Guido Ambrosini
- Department of Women’s and Chilren’s Health, University of Padova, Padova 35131, Italy; E-Mails: (A.A.); (G.A.)
| | - Guglielmo Bonanni
- Department of Medicine—Endocrinology, University of Padova, Padova 35131, Italy; E-Mails: (G.B.); (D.A.)
| | - Eugenio Ragazzi
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova 35131, Italy; E-Mail:
| | - Decio Armanini
- Department of Medicine—Endocrinology, University of Padova, Padova 35131, Italy; E-Mails: (G.B.); (D.A.)
| | - Giulio Clari
- Department of Molecular Medicine-Biological Chemistry, University of Padova, Padova 35131, Italy; E-Mails: (G.D.); (I.K.); (A.M.B.); (G.C.)
| | - Luciana Bordin
- Department of Molecular Medicine-Biological Chemistry, University of Padova, Padova 35131, Italy; E-Mails: (G.D.); (I.K.); (A.M.B.); (G.C.)
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-049-827-6113; Fax: +39-049-807-3310
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18
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Bordin L, Donà G, Sabbadin C, Ragazzi E, Andrisani A, Ambrosini G, Brunati AM, Clari G, Armanini D. Human red blood cells alterations in primary aldosteronism. J Clin Endocrinol Metab 2013; 98:2494-501. [PMID: 23539731 DOI: 10.1210/jc.2012-3571] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Aldosterone (Aldo) effects include NADPH oxidase activation involved in Aldo-related oxidative stress. Red blood cells (RBCs) are particularly sensitive to oxidative assault, and both the formation of high molecular weight aggregates (HMWAs) and the diamide-induced Tyr phosphorylation (Tyr-P) level of membrane band 3 can be used to monitor their redox status. OBJECTIVE The Aldo-related alterations in erythrocytes were evaluated by comparing in vitro evidence. DESIGN This was a multicenter comparative study. STUDY PARTICIPANTS The study included 12 patients affected by primary aldosteronism (PA) and 6 healthy control subjects (HCs), whose RBCs were compared with those of patients with PA. For in vitro experiments, RBCs from HCs were incubated with increasing Aldo concentrations. MAIN OUTCOME MEASURES The Tyr-P level, band 3 HMWA formation, and autologous IgG binding were evaluated. RESULTS In patients with PA, both Tyr-P levels and band 3 HMWAs were higher than those in HCs. RBCs from HCs were treated with increasing Aldo concentrations in both platelet-poor plasma (PPP) and charcoal-stripped (CS)-PPP. Results showed that Aldo had dose- and time-dependent effects on band 3 Tyr-P and HMWA formation in CS-PPP more than in PPP. These effects were almost completely prevented by canrenone or cortisol. Aldo-related membrane alterations led to increased autologous IgG binding. CONCLUSIONS Erythrocytes from patients with PA show oxidative-like stress evidenced by increased HMWA content and diamide-induced band 3 Tyr-P level. Aldo effects are mediated by the mineralocorticoid receptor, as suggested by the inhibitory effects of canrenone, an antagonist of Aldo. In CS-PPP, in which Aldo induces remarkable membrane alterations leading to IgG binding, Aldo may be responsible for premature RBC removal from circulation.
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Affiliation(s)
- Luciana Bordin
- Department of Molecular Medicine-Biological Chemistry, University of Padua, Viale G. Colombo 3, 35131 Padua, Italy.
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19
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Lutz HU. Naturally occurring anti-band 3 antibodies in clearance of senescent and oxidatively stressed human red blood cells. ACTA ACUST UNITED AC 2012; 39:321-7. [PMID: 23801923 DOI: 10.1159/000342171] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2012] [Accepted: 07/04/2012] [Indexed: 11/19/2022]
Abstract
SUMMARY Naturally occurring anti-band 3 antibodies (anti-band 3 NAbs) are directed against the 55-kDa chymotryptic fragment of the anion transport protein (band 3) of red blood cells (RBCs). They bind to senescent and oxidatively stressed RBCs and induce their selective clearance. These IgG NAbs exist at low concentrations, and have a weak affinity that prevents them from actively recruiting second binding sites. Cellular senescence or oxidative damage induces a cascade of biochemical events that results in the detachment of band 3 from the cytoskeleton and in clustering of band 3 protein by bound hemichromes and Syk kinase. Clustered band 3 proteins allow bivalent binding of anti-band 3 NAbs. Bivalently bound anti-band 3 NAbs have the unique capacity to stimulate C3b deposition by preferentially generating C3b2-IgG complexes, which act as potent C3 convertase precursors of the alternative complement pathway. Antibody binding not only to clustered, but also to oligomerized band 3 protein further increases if the human plasma also contains induced anti-lactoferrin antibodies. These bind to the polylactosaminyl oligosaccharide, a carbohydrate that exists in lactoferrin and in the 38-kDa fragment of band 3 protein. Anti-lactoferrin antibodies are found primarily in plasma of patients with autoimmune diseases and who have anti-neutrophil cytoplasmic antibodies (ANCA).
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Affiliation(s)
- Hans U Lutz
- Institute of Biochemistry, ETH Zurich, Switzerland
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20
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Antonelou MH, Tzounakas VL, Velentzas AD, Stamoulis KE, Kriebardis AG, Papassideri IS. Effects of pre-storage leukoreduction on stored red blood cells signaling: a time-course evaluation from shape to proteome. J Proteomics 2012; 76 Spec No.:220-38. [PMID: 22796353 DOI: 10.1016/j.jprot.2012.06.032] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 05/25/2012] [Accepted: 06/05/2012] [Indexed: 02/07/2023]
Abstract
The introduction of pre-storage leukoreduction in the preparation of standard RBCs intended for transfusion provided significant improvement in the quality of labile products and their post transfusion viability and effects, although the literature data are controversial. To elucidate the issue of the probable leukoreduction effects on RBCs storage lesion, we evaluated various storage quality measures in RBCs stored in either leukoreduced (L) or non-leukoreduced (N) units, with emphasis to senescence and oxidative stress associated modifications. Our data suggest that the residual leukocytes/platelets of the labile products represent a stressful storage factor, countering the structural and functional integrity of stored RBCs. Hemolysis, irreversible echinocytosis, microvesiculation, removal signaling, ROS/calcium accumulation, band 3-related senescence modifications, membrane proteome stress biomarkers as well as emergence of a senescence phenotype in young RBCs that is disproportionate to their age, are all encountered more or mostly in N-RBCs compared to the L-RBCs, either for a part or for the whole of the storage period. The partial, yet significant, alleviation of so many storage-related manifestations in the L-RBCs compared to the N-RBCs, is presented for the first time and provides a rational mechanistic interpretation of the improved storage quality and transfusions observed by the introduction of pre-storage leukoreduction. This article is part of a Special Issue entitled: Integrated omics.
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Donà G, Sabbadin C, Fiore C, Bragadin M, Giorgino FL, Ragazzi E, Clari G, Bordin L, Armanini D. Inositol administration reduces oxidative stress in erythrocytes of patients with polycystic ovary syndrome. Eur J Endocrinol 2012; 166:703-10. [PMID: 22223702 DOI: 10.1530/eje-11-0840] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Possibly due to a deficiency of insulin mediators, polycystic ovary syndrome (PCOS) is often associated with insulin resistance (IR) and hyperinsulinemia, likely responsible for an elevated production of reactive oxygen species. We investigated oxidative-related alterations in erythrocytes and anti-inflammatory effects of inositol in women with PCOS before and after treatment with myo-inositol (MYO). METHODS Twenty-six normal-weight PCOS patients were investigated before and after MYO administration (1200 mg/day for 12 weeks; n=18) or placebo (n=8) by evaluating serum testosterone, serum androstenedione, fasting serum insulin, fasting serum glucose, insulin area under the curve (AUC), and glucose AUC after oral glucose tolerance test and homeostasis model of assessment-IR. In erythrocytes, band 3 tyrosine phosphorylation (Tyr-P) level, glutathione (GSH) content, and glutathionylated proteins (GSSP) were also assessed. RESULTS Data show that PCOS patients' erythrocytes underwent oxidative stress as indicated by band 3 Tyr-P values, reduced cytosolic GSH content, and increased membrane protein glutathionylation. MYO treatment significantly improved metabolic and biochemical parameters. Significant reductions were found in IR and serum values of androstenedione and testosterone. A significant association between band 3 Tyr-P levels and insulin AUC was found at baseline but disappeared after MYO treatment, while a correlation between band 3 Tyr-P and testosterone levels was detected both before and after MYO treatment. CONCLUSIONS PCOS patients suffer from a systemic inflammatory status that induces erythrocyte membrane alterations. Treatment with MYO is effective in reducing hormonal, metabolic, and oxidative abnormalities in PCOS patients by improving IR.
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Affiliation(s)
- Gabriella Donà
- Department of Biological Chemistry, University of Padua, Viale G. Colombo 3, Padua, Italy
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22
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Pantaleo A, Ferru E, Vono R, Giribaldi G, Lobina O, Nepveu F, Ibrahim H, Nallet JP, Carta F, Mannu F, Pippia P, Campanella E, Low PS, Turrini F. New antimalarial indolone-N-oxides, generating radical species, destabilize the host cell membrane at early stages of Plasmodium falciparum growth: role of band 3 tyrosine phosphorylation. Free Radic Biol Med 2012; 52:527-36. [PMID: 22142474 PMCID: PMC3385926 DOI: 10.1016/j.freeradbiomed.2011.11.008] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Revised: 11/07/2011] [Accepted: 11/09/2011] [Indexed: 11/20/2022]
Abstract
Although indolone-N-oxide (INODs) genereting long-lived radicals possess antiplasmodial activity in the low-nanomolar range, little is known about their mechanism of action. To explore the molecular basis of INOD activity, we screened for changes in INOD-treated malaria-infected erythrocytes (Pf-RBCs) using a proteomics approach. At early parasite maturation stages, treatment with INODs at their IC(50) concentrations induced a marked tyrosine phosphorylation of the erythrocyte membrane protein band 3, whereas no effect was observed in control RBCs. After INOD treatment of Pf-RBCs we also observed: (i) accelerated formation of membrane aggregates containing hyperphosphorylated band 3, Syk kinase, and denatured hemoglobin; (ii) dose-dependent release of microvesicles containing the membrane aggregates; (iii) reduction in band 3 phosphorylation, Pf-RBC vesiculation, and antimalarial effect of INODs upon addition of Syk kinase inhibitors; and (iv) correlation between the IC(50) and the INOD concentrations required to induce band 3 phosphorylation and vesiculation. Together with previous data demonstrating that tyrosine phosphorylation of oxidized band 3 promotes its dissociation from the cytoskeleton, these results suggest that INODs cause a profound destabilization of the Pf-RBC membrane through a mechanism apparently triggered by the activation of a redox signaling pathway rather than direct oxidative damage.
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Affiliation(s)
- Antonella Pantaleo
- Department of Physiological, Biochemical, and Cell Sciences, University of Sassari, Sassari 07100, Italy.
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Erythrocyte membrane changes of chorea-acanthocytosis are the result of altered Lyn kinase activity. Blood 2011; 118:5652-63. [PMID: 21951684 DOI: 10.1182/blood-2011-05-355339] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Acanthocytic RBCs are a peculiar diagnostic feature of chorea-acanthocytosis (ChAc), a rare autosomal recessive neurodegenerative disorder. Although recent years have witnessed some progress in the molecular characterization of ChAc, the mechanism(s) responsible for generation of acanthocytes in ChAc is largely unknown. As the membrane protein composition of ChAc RBCs is similar to that of normal RBCs, we evaluated the tyrosine (Tyr)-phosphorylation profile of RBCs using comparative proteomics. Increased Tyr phosphorylation state of several membrane proteins, including band 3, β-spectrin, and adducin, was noted in ChAc RBCs. In particular, band 3 was highly phosphorylated on the Tyr-904 residue, a functional target of Lyn, but not on Tyr-8, a functional target of Syk. In ChAc RBCs, band 3 Tyr phosphorylation by Lyn was independent of the canonical Syk-mediated pathway. The ChAc-associated alterations in RBC membrane protein organization appear to be the result of increased Tyr phosphorylation leading to altered linkage of band 3 to the junctional complexes involved in anchoring the membrane to the cytoskeleton as supported by coimmunoprecipitation of β-adducin with band 3 only in ChAc RBC-membrane treated with the Lyn-inhibitor PP2. We propose this altered association between membrane skeleton and membrane proteins as novel mechanism in the generation of acanthocytes in ChAc.
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Regulation of membrane-cytoskeletal interactions by tyrosine phosphorylation of erythrocyte band 3. Blood 2011; 117:5998-6006. [PMID: 21474668 DOI: 10.1182/blood-2010-11-317024] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The cytoplasmic domain of band 3 serves as a center of erythrocyte membrane organization and constitutes the major substrate of erythrocyte tyrosine kinases. Tyrosine phosphorylation of band 3 is induced by several physiologic stimuli, including malaria parasite invasion, cell shrinkage, normal cell aging, and oxidant stress (thalassemias, sickle cell disease, glucose-6-phosphate dehydrogenase deficiency, etc). In an effort to characterize the biologic sequelae of band 3 tyrosine phosphorylation, we looked for changes in the polypeptide's function that accompany its phosphorylation. We report that tyrosine phosphorylation promotes dissociation of band 3 from the spectrin-actin skeleton as evidenced by: (1) a decrease in ankyrin affinity in direct binding studies, (2) an increase in detergent extractability of band 3 from ghosts, (3) a rise in band 3 cross-linkability by bis-sulfosuccinimidyl-suberate, (4) significant changes in erythrocyte morphology, and (5) elevation of the rate of band 3 diffusion in intact cells. Because release of band 3 from its ankyrin and adducin linkages to the cytoskeleton can facilitate changes in multiple membrane properties, tyrosine phosphorylation of band 3 is argued to enable adaptive changes in erythrocyte biology that permit the cell to respond to the above stresses.
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Bordin L, Fiore C, Zen F, Coleman MD, Ragazzi E, Clari G. Dapsone hydroxylamine induces premature removal of human erythrocytes by membrane reorganization and antibody binding. Br J Pharmacol 2011; 161:1186-99. [PMID: 20662842 DOI: 10.1111/j.1476-5381.2010.00962.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE N-hydroxylation of dapsone leads to the formation of the toxic hydroxylamines responsible for the clinical methaemoglobinaemia associated with dapsone therapy. Dapsone has been associated with decreased lifespan of erythrocytes, with consequences such as anaemia and morbidity in patients treated with dapsone for malaria. Here, we investigated how dapsone and/or its hydroxylamine derivative (DDS-NHOH) induced erythrocyte membrane alterations that could lead to premature cell removal. EXPERIMENTAL APPROACH Erythrocytes from healthy donors were subjected to incubation with dapsone and DDS-NHOH for varying times and the band 3 protein tyrosine-phosphorylation process, band 3 aggregation, membrane alteration and IgG binding were all examined and compared with erythrocytes from two patients receiving dapsone therapy. KEY RESULTS The hydroxylamine derivative, but not dapsone (the parent sulphone) altered membrane protein interactions, leading both to aggregation of band 3 protein and to circulating autologous antibody binding, shown in erythrocytes from patients receiving dapsone therapy. The band 3 tyrosine-phosphorylation process can be used as a diagnostic system to monitor membrane alterations both in vitro, assessing concentration and time-dependent effects of DDS-NHOH treatment, and in vivo, evaluating erythrocytes from dapsone-treated patients, in resting or oxidatively stimulated conditions. CONCLUSIONS AND IMPLICATIONS DDS-NHOH-induced alterations of human erythrocytes can be directly monitored in vitro by tyrosine-phosphorylation level and formation of band 3 protein aggregates. The latter, together with antibody-mediated labelling of erythrocytes, also observed after clinical use of dapsone, may lead to shortening of erythrocyte lifespan.
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Affiliation(s)
- Luciana Bordin
- Department of Biological Chemistry, University of Padova, Viale G. Colombo 3, Padua, Italy.
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Pantaleo A, Ferru E, Carta F, Mannu F, Simula LF, Khadjavi A, Pippia P, Turrini F. Irreversible AE1 tyrosine phosphorylation leads to membrane vesiculation in G6PD deficient red cells. PLoS One 2011; 6:e15847. [PMID: 21246053 PMCID: PMC3016414 DOI: 10.1371/journal.pone.0015847] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Accepted: 11/25/2010] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND While G6PD deficiency is one of the major causes of acute hemolytic anemia, the membrane changes leading to red cell lysis have not been extensively studied. New findings concerning the mechanisms of G6PD deficient red cell destruction may facilitate our understanding of the large individual variations in susceptibility to pro-oxidant compounds and aid the prediction of the hemolytic activity of new drugs. METHODOLOGY/PRINCIPAL FINDINGS Our results show that treatment of G6PD deficient red cells with diamide (0.25 mM) or divicine (0.5 mM) causes: (1) an increase in the oxidation and tyrosine phosphorylation of AE1; (2) progressive recruitment of phosphorylated AE1 in large membrane complexes which also contain hemichromes; (3) parallel red cell lysis and a massive release of vesicles containing hemichromes. We have observed that inhibition of AE1 phosphorylation by Syk kinase inhibitors prevented its clustering and the membrane vesiculation while increases in AE1 phosphorylation by tyrosine phosphatase inhibitors increased both red cell lysis and vesiculation rates. In control RBCs we observed only transient AE1 phosphorylation. CONCLUSIONS/SIGNIFICANCE Collectively, our findings indicate that persistent tyrosine phosphorylation produces extensive membrane destabilization leading to the loss of vesicles which contain hemichromes. The proposed mechanism of hemolysis may be applied to other hemolytic diseases characterized by the accumulation of hemoglobin denaturation products.
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Affiliation(s)
- Antonella Pantaleo
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
| | - Emanuela Ferru
- Section of Internal Medicine, Department of Clinical and Experimental Medicine, University of Verona, Verona, Italy
| | | | | | | | - Amina Khadjavi
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
| | - Proto Pippia
- Department of Physiological, Biochemical and Cell Sciences, University of Sassari, Sassari, Italy
| | - Francesco Turrini
- Department of Genetics, Biology and Biochemistry, University of Turin, Turin, Italy
- * E-mail:
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Pantaleo A, Ferru E, Carta F, Mannu F, Giribaldi G, Vono R, Lepedda AJ, Pippia P, Turrini F. Analysis of changes in tyrosine and serine phosphorylation of red cell membrane proteins induced by P. falciparum
growth. Proteomics 2010; 10:3469-79. [DOI: 10.1002/pmic.201000269] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Sridharan M, Sprague RS, Adderley SP, Bowles EA, Ellsworth ML, Stephenson AH. Diamide decreases deformability of rabbit erythrocytes and attenuates low oxygen tension-induced ATP release. Exp Biol Med (Maywood) 2010; 235:1142-8. [PMID: 20682601 DOI: 10.1258/ebm.2010.010118] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Exposure of erythrocytes to reduced oxygen (O(2)) tension activates the heterotrimeric G-protein Gi, resulting in the accumulation of cyclic AMP (cAMP) and release of ATP. The mechanism by which exposure of erythrocytes to reduced O(2) tension activates Gi is not known. Here we investigate the hypothesis that, in rabbit erythrocytes, ATP release in response to exposure to reduced O(2) tension is linked to erythrocyte membrane deformability. If this hypothesis is correct, then decreasing the deformability of the erythrocyte membrane should decrease the release of ATP in response to reduced O(2) tension. We report that treating erythrocytes with diamide, a compound that decreases erythrocyte deformability, inhibits low O(2) tension-induced ATP release. Treating erythrocytes with diamide does not, however, interfere with cAMP accumulation or ATP release in response to a direct activator of Gi (mastoparan 7) or in response to receptor-mediated activation of Gs (the prostacyclin analog, iloprost). These results demonstrate that diamide (100 micromol/L) does not directly inhibit the signaling pathways for ATP release from rabbit erythrocytes and support the hypothesis that low O(2) tension-induced ATP release from these cells is linked to membrane deformability.
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Affiliation(s)
- Meera Sridharan
- Department of Pharmacological and Physiological Science, Saint Louis University School of Medicine, Saint Louis, MO 63104, USA.
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Matte A, Low PS, Turrini F, Bertoldi M, Campanella ME, Spano D, Pantaleo A, Siciliano A, De Franceschi L. Peroxiredoxin-2 expression is increased in beta-thalassemic mouse red cells but is displaced from the membrane as a marker of oxidative stress. Free Radic Biol Med 2010; 49:457-66. [PMID: 20488244 PMCID: PMC3395234 DOI: 10.1016/j.freeradbiomed.2010.05.003] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2010] [Revised: 04/21/2010] [Accepted: 05/04/2010] [Indexed: 12/11/2022]
Abstract
Peroxiredoxin 2 (Prx2), the third most abundant cytoplasmic protein in red blood cells (RBCs), is involved in the defense against oxidative stress. Although much is known about Prx2 in healthy RBCs, its role in pathological RBCs remains largely unexplored. Here, we show that the expression and net content of Prx2 are markedly increased in RBCs from two mouse models of beta-thalassemia (beta-thal; Hbb(th/th) and Hbb(th3/+) strains). We also demonstrate that the increased expression of Prx2 correlates with the severity of the disease and that the amount of Prx2 bound to the membrane is markedly reduced in beta-thal mouse RBCs. To explore the impact of oxidative stress on Prx2 membrane association, we examined Prx2 dimerization and membrane translocation in murine RBCs exposed to various oxidants (phenylhydrazine, PHZ; diamide; H(2)O(2)). PHZ-treated RBCs, which mimic the membrane damage in beta-thal RBCs, exhibited a kinetic correlation among Prx2 membrane displacement, intracellular methemoglobin levels, and hemichrome membrane association, suggesting the possible masking of Prx2 docking sites by membrane-bound hemichromes, providing a possible mechanism for the accumulation of oxidized/dimerized Prx2 in the cytoplasm and the increased membrane damage in beta-thal RBCs. Thus, reduced access of Prx2 to the membrane in beta-thal RBCs represents a new factor that could contribute to the oxidative damage characterizing the pathology.
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Affiliation(s)
- Alessandro Matte
- Section of Internal Medicine, Department of Clinical and Experimental Medicine, University of Verona, 37134 Verona, Italy
| | - Philip S. Low
- Department of Chemistry, Purdue University, West Lafayette, IN 47907, USA
| | - Franco Turrini
- Section of Medical Chemistry, Department of Genetic, Biology, and Medical Chemistry, University of Torino, Torino, Italy
| | - Mariarita Bertoldi
- Section of Biochemistry, Department of Morphological–Biomedical Sciences, University of Verona, 37134 Verona, Italy
| | | | - Daniela Spano
- Department of Biochemistry and Medical Biotechnologies, University Federico II, Naples, and CEINGE–Advanced Biotechnologies, Naples, Italy
| | - Antonella Pantaleo
- Section of Internal Medicine, Department of Clinical and Experimental Medicine, University of Verona, 37134 Verona, Italy
- Nurex srl, Sassari, Italy
| | - Angela Siciliano
- Section of Internal Medicine, Department of Clinical and Experimental Medicine, University of Verona, 37134 Verona, Italy
| | - Lucia De Franceschi
- Section of Internal Medicine, Department of Clinical and Experimental Medicine, University of Verona, 37134 Verona, Italy
- Corresponding author. Fax: +390458027473. (L. De Franceschi)
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Bordin L, Fiore C, Donà G, Andrisani A, Ambrosini G, Faggian D, Plebani M, Clari G, Armanini D. Evaluation of erythrocyte band 3 phosphotyrosine level, glutathione content, CA-125, and human epididymal secretory protein E4 as combined parameters in endometriosis. Fertil Steril 2010; 94:1616-21. [PMID: 20153468 DOI: 10.1016/j.fertnstert.2009.10.038] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2009] [Revised: 10/19/2009] [Accepted: 10/20/2009] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the biochemical parameters of the erythrocyte response to diamide-induced oxidative stress, alone or as adjuncts to serum values of CA-125 and human epididymal secretory protein E4 (HE4), in the diagnosis and study of endometriosis. SETTING University of Padova. DESIGN Prospective study. PATIENT(S) Forty-five patients of reproductive age undergoing laparoscopy. INTERVENTION(S) All women were studied for endometriotic foci during laparoscopic surgery. Forty-one had laparoscopically and histologically confirmed endometriosis, and four did not. Twenty women with confirmed endometriosis were reassessed 1-4 months later. MAIN OUTCOME MEASURE(S) CA-125 and HE4 and two new parameters evaluated in erythrocytes after diamide-induced stress, that is, band 3 tyrosine phosphorylation (Tyr-P) level and decrease in total glutathione content (ΔGSH), were assessed in all patients. RESULT(S) In association with serum CA-125 levels but not with HE4, diamide-related erythrocyte band 3 Tyr-P and ΔGSH were significantly higher in patients with endometriosis and were able to discriminate with high sensitivity and specificity between patients before and after surgery. CONCLUSION(S) Endometriosis is associated with an increase in systemic oxidative stress, affecting the antioxidative defenses of circulating erythrocytes. All related implications, including evaluation of other oxidative stress-related changes, warrant further study.
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Affiliation(s)
- Luciana Bordin
- Department of Biological Chemistry, University of Padova, Padova, Italy
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Iolascon A, De Falco L, Borgese F, Esposito MR, Avvisati RA, Izzo P, Piscopo C, Guizouarn H, Biondani A, Pantaleo A, De Franceschi L. A novel erythroid anion exchange variant (Gly796Arg) of hereditary stomatocytosis associated with dyserythropoiesis. Haematologica 2009; 94:1049-59. [PMID: 19644137 DOI: 10.3324/haematol.2008.002873] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Stomatocytoses are a group of inherited autosomal dominant hemolytic anemias and include overhydrated hereditary stomatocytosis, dehydrated hereditary stomatocytosis, hereditary cryohydrocytosis and familial pseudohyperkalemia. DESIGN AND METHODS We report a novel variant of hereditary stomatocytosis due to a de novo band 3 mutation (p. G796R-band3 CEINGE) associated with a dyserythropoietic phenotype. Band 3 genomic analysis, measurement at of hematologic parameters and red cell indices and morphological analysis of bone marrow were carried out. We then evaluated the red cell membrane permeability and ion transport systems by functional studies of the patient's erythrocytes and Xenopus oocytes transfected with mutated band 3. We analyzed the red cell membrane tyrosine phosphorylation profile and the membrane association of the tyrosine kinases Syk and Lyn from the Src-family-kinase group, since the activity of the membrane cation transport pathways is related to cyclic phosphorylation-dephosphorylation events. RESULTS The patient showed mild hemolytic anemia with circulating stomatocytes together with signs of dyserythropoiesis. Her red cells displayed increased Na(+) content with decreased K(+)content and abnormal membrane cation transport activities. Functional characterization of band 3 CEINGE in Xenopus oocytes showed that the mutated band 3 is converted from being an anion exchanger (Cl(-), HCO(3)(-)) to being a cation pathway for Na(+) and K(+). Increased tyrosine phosphorylation of some red cell membrane proteins was observed in diseased erythrocytes. Syk and Lyn membrane association was increased in the patient's red cells compared to in normal controls, indicating perturbation of phospho-signaling pathways involved in cell volume regulation events. CONCLUSIONS Band 3 CEINGE alters function from that of anion exchange to cation transport, affects the membrane tyrosine phosphorylation profile, in particular of band 3 and stomatin, and its presence during red cell development likely contributes to dyserythropiesis.
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Affiliation(s)
- Achille Iolascon
- Department of Biochemistry and Medical Biotechnologies, University Federico II, Naples, Italy.
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Bordin L, Fiore C, Bragadin M, Brunati AM, Clari G. Regulation of membrane band 3 Tyr-phosphorylation by proteolysis of p72(Syk) and possible involvement in senescence process. Acta Biochim Biophys Sin (Shanghai) 2009; 41:846-51. [PMID: 19779650 DOI: 10.1093/abbs/gmp071] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Erythrocyte senescence is characterized by exposure of cell surface epitopes on cell membrane proteins leading to immune mediated removal of red blood cells. One mechanism for antigen formation is tyrosine phosphorylation (Tyr-P) of the transmembrane protein band 3 by Syk kinase. Our aim was to test the hypothesis that proteolytic activation of Syk kinase by conversion from 72 kDa (p72(Syk)) to the 36 kDa (p36(Syk)) isoform enhances its phosphorylating activity independently of the association of Syk kinase with the cytoskeleton. Tyr-P assay was conducted using quantification of (32)P uptake into the cytoplasmic domain of band 3 after addition of p72(Syk) or p36(Syk). Effect of prephosphorylation of erythrocyte membrane band 3 protein by p36(Syk) on p72(Syk)-mediated phosphorylation and the effect of addition of a protease inhibitor (leupeptin) on p72(Syk)-mediated phosphorylation were studied by autoradiographic visualization of (32)P uptake. Tyr-P by Syk isoforms of membrane skeletal and soluble fractions of band 3 was visualized by immunoblotting. It was found that p36(Syk) had a higher band 3 tyrosine phosphorylating activity compared with p72(Syk). Pre-phosphorylation with p36(Syk) or p72(Syk) increased band 3 phosphorylating activity. Protease inhibition treatment reduced p72(Syk) but not p36(Syk) band 3 tyrosine phosphorylating activity significantly. Both soluble and membrane skeletal fractions of band 3 protein were equally tyrosine phosphorylated by each Syk isoform. In conclusion, we confirmed the hypothesis that proteolytic cleavage of p72(Syk) is an important regulatory step for band 3 Tyr-P and its independence of the association of band 3 with the cytoskeleton.
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Affiliation(s)
- Luciana Bordin
- Dipartimento di Chimica Biologica, Università di Padova, Viale G. Colombo 3, Padua, Italy
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Modulation of erythrocyte acetylcholinesterase activity and its association with G protein-band 3 interactions. J Membr Biol 2009; 228:89-97. [PMID: 19294450 DOI: 10.1007/s00232-009-9162-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2009] [Accepted: 02/18/2009] [Indexed: 10/21/2022]
Abstract
Circulating acetylcholine, substrate of membrane acetylcholinesterase (AChE), is known to enhance the band 3 protein degree of phosphorylation. The purpose of this study was to verify whether the band 3 phosphorylation status is associated with a G protein and whether it is an influent factor on AChE enzyme activity. From blood samples of healthy donors, erythrocyte suspensions were prepared and incubated with AChE substrate (acetylcholine) and inhibitor (velnacrine), along with protein tyrosine kinase (PTK) and tyrosine phosphatase (PTP) inhibitors. AChE activity was determined by spectrophotometry and extract samples were analyzed by western blotting using primary antibodies to different G protein subunits. Our results with phosphorylated band 3 (PTP inhibitor) show an increase in erythrocyte AChE (p < 0.0001). A dephosphorylated band 3 state (PTK inhibitor) shows a significant decrease. We identified a potential linkage of protein subunits Galpha(i1/2) and G(beta) with band 3 protein. Galpha(i1/2) and G(beta) may be linked to the band 3 C-terminal site. Galpha(i1/2) is associated with the band 3 N-terminal domain, except for the control and ACh aliquots. G(beta) is associated with both phosphorylated and dephosphorylated band 3 in the presence of velnacrine. We conclude that an erythrocyte G protein with subunits Galpha(i1/2) and G(beta) is associated with band 3. AChE depends on the degree of band 3 phosphorylation and its association with Galpha(i1/2) and G(beta).
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Oxidized and poorly glycosylated band 3 is selectively phosphorylated by Syk kinase to form large membrane clusters in normal and G6PD-deficient red blood cells. Biochem J 2009; 418:359-67. [PMID: 18945214 DOI: 10.1042/bj20081557] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Oxidative events involving band 3 (Anion Exchanger 1) have been associated with RBC (red blood cell) removal through binding of NAbs (naturally occurring antibodies); however, the underlying mechanism has been only partially characterized. In addition to inducing direct membrane protein oxidative modification, oxidative treatment specifically triggers the phosphorylation of band 3 tyrosine residues. The present study reports that diamide, a thiol group oxidant, induces disulfide cross-linking of poorly glycosylated band 3 and that the oligomerized band 3 fraction is selectively tyrosine phosphorylated both in G6PD (glucose-6-phosphate dehydrogenase)-deficient and control RBCs. This phenomenon is irreversible in G6PD-deficient RBCs, whereas it is temporarily limited in control RBCs. Diamide treatment caused p72 Syk phosphorylation and translocation to the membrane. Diamide also induced p72 Syk co-immunoprecipitation with aggregated band 3. Moreover, following size-exclusion separation of Triton X-100-extracted membrane proteins, Syk was found only in the high-molecular-mass fraction containing oligomerized/phosphorylated band 3. Src family inhibitors efficiently abrogated band 3 tyrosine phosphorylation, band 3 clustering and NAbs binding to the RBC surface, suggesting a causal relationship between these events. Experiments performed with the non-permeant cross-linker BS(3) (bis-sulfosuccinimidyl-suberate) showed that band 3 tyrosine phosphorylation enhances its capability to form large aggregates. The results of the present study suggest that selective tyrosine phosphorylation of oxidized band 3 by Syk may play a role in the recruitment of oxidized band 3 in large membrane aggregates that show a high affinity to NAbs, leading to RBC removal from the circulation.
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Effect of glycyrrhetinic acid on membrane band 3 in human erythrocytes. Arch Biochem Biophys 2008; 479:46-51. [PMID: 18778682 DOI: 10.1016/j.abb.2008.08.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2008] [Revised: 08/16/2008] [Accepted: 08/18/2008] [Indexed: 11/20/2022]
Abstract
Glycyrrhetinic acid (GA) is a hydrolytic product of the triterpene glycoside of glycyrrhizic acid, one of the main constituents of licorice root, which has long been studied, due to its several biological and endocrine properties. In this paper, GA was tested on human erythrocytes, and GA-induced alterations were compared with those caused by diamide, a mild oxidant inducing well-characterized cell/membrane alterations, and n-ethylmaleimide (NEM), as alkylating agent. In order to verify the biochemical steps underlying the action of GA, band 3 Tyr-phosphorylation level, enzyme recruitment and band 3 clustering in cells pre-incubated with GA before diamide treatment were all examined. Results show that GA, in a dose-dependent manner, prevents both diamide and NEM-induced band 3 Tyr-phosphorylation, but not GSH decrease caused by both compounds. In addition, diamide-induced band 3 clustering and IgG binding to altered cells were also completely reversed by GA pre-treatment. Also, when membrane sensitivity toward proteolytic digestion was tested, GA-treated cells showed high resistance to proteolysis. In conclusion, in human erythrocytes, GA is proposed to strengthen membrane integrity against both oxidative and proteolytic damage.
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Bragadin M, Ion-Popa F, Clari G, Bordin L. SHP-1 Tyrosine Phosphatase in Human Erythrocytes. Ann N Y Acad Sci 2007; 1095:193-203. [PMID: 17404032 DOI: 10.1196/annals.1397.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
SHP-1 is a SH2-domain containing protein Tyr-phosphatase expressed in hematopoietic cell lines, which is hypothesized to play a negative role in signal transduction. In human erythrocytes, the phospho-Tyr level of proteins, mainly transmembrane band 3, is closely controlled by the antithetic activity of Tyr-protein kinases and phosphatases, resulting in a dephosphorylated state. Only after particular stimuli, as with oxidizing agents, diamide or pervanadate, or thiol alkylating compound, N-ethyl maleimide (NEM), Tyr-phosphorylation of band 3 can be triggered, inhibiting Tyr-phosphatase action and inducing erythrocyte membrane reorganization. We demonstrate that, in human erythrocytes, SHP-1 is present in membranes from resting cells, but in 5% of the protein amount. Interestingly, this amount increases up to threefold following NEM treatment of intact cells, whereas diamide and pervanadate do not alter the normal protein location. In addition, SHP-1 translocation from cytosol to membrane is not affected by band 3 P-Tyr level, because it is not mediated by the SH2-P-Tyr recruitment mechanism, and localizes into the cytoskeletal compartment. Band 3 is the target of SHP-1, which dephosphorylates Tyr 8, 21, and 904. These findings support the idea that, in human erythrocytes, the normal level of Tyr-phosphorylation of membrane protein, mainly band 3, must be downregulated. We hypothesize that the presence of both SHP-2 and SHP-1 ensures band 3 dephosphorylation in different conditions: SHP-2, through interaction of its SH2 domain/s to P-Tyr protein, is regulated by the band 3 Tyr-phosphorylation level; SHP-1 may be involved by simple membrane rearrangement.
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Affiliation(s)
- Marcantonio Bragadin
- Dipartimento di Scienze Ambientali, Dorsoduro 2137, University of Padova, 30123 Venezia, Italy.
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Bordin L, Quartesan S, Zen F, Vianello F, Clari G. Band 3 tyr-phosphorylation in human erythrocytes from non-pregnant and pregnant women. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2006; 1758:611-9. [PMID: 16697973 DOI: 10.1016/j.bbamem.2006.03.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2005] [Revised: 03/06/2006] [Accepted: 03/06/2006] [Indexed: 10/24/2022]
Abstract
Pregnancy is associated with changes in circulating red blood cells, mainly involving band 3 protein and membrane lipid peroxidation. Membrane band 3 is a multifunctional protein containing four Tyr-phosphorylatable residues which modulate the physiological status of erythrocytes by regulating glycolysis, cell shape and membrane transport. Erythrocytes from nine pregnant and 12 age-matched non-pregnant healthy women were subjected to oxidative and hyperosmotic stress conditions and the extent of band 3 Tyr-phosphorylation and membrane Syk recruitment as a membrane marker were evaluated. Results indicated that, in pregnancy, red blood cells show a decrease in band 3 Tyr-phosphorylation and a clear-cut rearrangement of band 3 protein within the membrane. In fact, band 3 shows a decrease in high molecular weight aggregates (HMWA), with different subdivision between Triton-soluble and -insoluble compartments, and an increase in proteolytic fragments. In conclusion, it is demonstrated that pregnancy is associated with membrane adjustments which reduce the sensitivity of erythrocytes to both oxidative and osmotic stress. Band 3 Tyr-phosphorylation is proposed as a new parameter in the evaluation of erythrocyte membrane arrangement.
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Affiliation(s)
- Luciana Bordin
- Dipartimento di Chimica Biologica, Università di Padova, Viale G. Colombo, 3, 35121 Padova, Italy.
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