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Tkachenko A. Hemocompatibility studies in nanotoxicology: Hemolysis or eryptosis? (A review). Toxicol In Vitro 2024; 98:105814. [PMID: 38582230 DOI: 10.1016/j.tiv.2024.105814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Revised: 03/13/2024] [Accepted: 04/03/2024] [Indexed: 04/08/2024]
Abstract
Hemocompatibility evaluation is an important step in nanotoxicological studies. It is generally accepted that nanomaterials promote lysis of erythrocytes, blood clotting, alter phagocytosis, and upregulate pro-inflammatory cytokines. However, there are no standardized guidelines for testing nanomaterials hemocompatibility despite the fact that nanomaterials enter the bloodstream and interact with blood cells. In this review, the current knowledge on the ability of nanomaterials to induce distinct cell death modalities of erythrocytes is highlighted primarily focusing on hemolysis and eryptosis. This review aims to summarize the molecular mechanisms underlying erythrotoxicity of nanomaterials and critically compare the sensitivity and efficiency of hemolysis or eryptosis assays for nanomaterials blood compatibility testing. The list of eryptosis-inducing nanomaterials is growing, but it is still difficult to generalize how physico-chemical properties of nanoparticles affect eryptosis degree and molecular mechanisms involved. Thus, another aim of this review is to raise the awareness of eryptosis as a nanotoxicological tool to encourage the corresponding studies. It is worthwhile to consider adding eryptosis to in vitro nanomaterials hemocompatibility testing protocols and guidelines.
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Affiliation(s)
- Anton Tkachenko
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 25250 Vestec, Czech Republic.
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Liu H, Li J, Wu N, She Y, Luo Y, Huang Y, Quan H, Fu W, Li X, Zeng D, Jia Y. Supplementing Glucose Intake Reverses the Inflammation Induced by a High-Fat Diet by Increasing the Expression of Siglec-E Ligands on Erythrocytes. Inflammation 2024; 47:609-625. [PMID: 38448631 DOI: 10.1007/s10753-023-01932-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 11/10/2023] [Accepted: 11/10/2023] [Indexed: 03/08/2024]
Abstract
Siglec-9/E is a cell surface receptor expressed on immune cells and can be activated by sialoglycan ligands to play an immunosuppressive role. Our previous study showed that increasing the expression of Siglec-9 (the human paralog of mouse Siglec-E) ligands maintains functionally quiescent immune cells in the bloodstream, but the biological effects of Siglec-9 ligand alteration on atherogenesis were not further explored. In the present study, we demonstrated that the atherosclerosis risk factor ox-LDL or a high-fat diet could decrease the expression of Siglec-9/E ligands on erythrocytes. Increased expression of Siglec-E ligands on erythrocytes caused by dietary supplementation with glucose (20% glucose) had anti-inflammatory effects, and the mechanism was associated with glucose intake. In high-fat diet-fed apoE-/- mice, glucose supplementation decreased the area of atherosclerotic lesions and peripheral inflammation. These data suggested that increased systemic inflammation is attenuated by increasing the expression of Siglec-9/E ligands on erythrocytes. Therefore, Siglec-9/E ligands might be valuable targets for atherosclerosis therapy.
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Affiliation(s)
- Hongmei Liu
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Jin Li
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Niting Wu
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Yuanting She
- Department of Haematology, Daping Hospital of Army Medical University, Chongqing, 400042, China
| | - Yadan Luo
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Yan Huang
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Hongyu Quan
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Wenying Fu
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Xiaohui Li
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China
| | - Dongfeng Zeng
- Department of Haematology, Daping Hospital of Army Medical University, Chongqing, 400042, China.
| | - Yi Jia
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University, Chongqing, 400038, China.
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Yu S, Ye Y, Wuren T, Yi H. Alteration in the number, morphology, function, and metabolism of erythrocytes in high-altitude polycythemia. Front Physiol 2024; 15:1359357. [PMID: 38426208 PMCID: PMC10902074 DOI: 10.3389/fphys.2024.1359357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Introduction: High-altitude polycythemia (HAPC) is a common chronic high-altitude disease characterized by significantly increased erythrocyte, hemoglobin (Hb), and hematocrit values and decreased arterial oxygen saturation. The mechanisms underlying HAPC development are unclear; we aimed to investigate this in an HAPC rat model. Methods: Twelve Sprague-Dawley rats were divided into control and HAPC groups. The HAPC group was exposed to hypobaric hypoxia. This HAPC model was assessed using routine blood tests and blood gas analyses. Bone marrow, peripheral blood reticulocytes (RETs), and peripheral blood erythrocyte apoptosis were measured using flow cytometry. Erythrocyte osmotic fragility (EOF) tests were conducted. Abnormal erythrocytes were counted using electron microscopy. Plasma-free hemoglobin, 5'-nucleotidase (CD73), adenosine, erythrocyte cytosolic adenosine, sphingosine-1-phosphate (S1P), and 2,3-bisphosphoglycerate (BPG) levels were measured using enzyme-linked immunosorbent assays. Erythrocyte metabolic pathway-related protein [adenosine A2B receptor (ADORA2B), erythrocyte equilibrative nucleoside transporter 1 (eENT1), sphingosine kinase 1 (SPHK1), phospho-SPHK1, bisphosphoglycerate mutase (BPGM), and glyceraldehyde 3-phosphate dehydrogenase (GAPDH)] levels were assessed by Western blotting. Results: The HAPC rat model was successfully established (Hb > 210 g/L). Indices of bone marrow and peripheral blood RET proportions were significantly higher in the HAPC than the control group (p = 0.04 and p < 0.001, respectively). The proportion of peripheral blood erythrocytes in early apoptosis was significantly lower in the HAPC than the control group (p < 0.001). Vesicular erythrocyte and acanthocyte proportions were significantly higher in the HAPC than the control group (p < 0.001 and p = 0.019, respectively). The EOF tests revealed that 50% erythrocyte hemolysis occurred at 4.0-4.5 and 4.5-5.0 g/L NaCl in the control and HAPC groups, respectively. Plasma-free hemoglobin, CD73, adenosine, erythrocyte cytosolic adenosine, S1P, and 2,3-BPG levels and ADORA2B, eENT1, phospho-SPHK1, S1P, BPGM, and GAPDH erythrocyte expression levels (all p ≤ 0.02) were significantly higher in the HAPC than the control group. Conclusion: In model rats, an HAPC-related erythrocyte increase was associated with enhanced bone marrow hematopoietic function and reduced erythrocyte apoptosis, whereas numerous abnormal erythrocytes, increased EOF, and reduced hemolysis resistance were associated with erythrocyte metabolism. CD73/adenosine/S1P/2,3-BPG and eENT1/adenosine/BPGM/2,3-BPG metabolic pathways in erythrocytes were activated in HAPC rats, facilitating oxygen release. These findings further reveal the intrinsic HAPC mechanism and forms a basis for future development of preventive and therapeutic strategies for HAPC.
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Affiliation(s)
- Song Yu
- College of Medicine, Southwest Jiaotong University, Chengdu, China
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, The General Hospital of Western Theater Command, Chengdu, China
| | - Yi Ye
- Research Center for High Altitude Medicine, Qinghai University, Xining, China
| | - Tana Wuren
- Research Center for High Altitude Medicine, Qinghai University, Xining, China
| | - Hai Yi
- College of Medicine, Southwest Jiaotong University, Chengdu, China
- Department of Hematology, Affiliated Hospital of Southwest Jiaotong University, The General Hospital of Western Theater Command, Chengdu, China
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Tuttobene MR, Schachter J, Álvarez CL, Saffioti NA, Leal Denis MF, Kessler H, García Véscovi E, Schwarzbaum PJ. ShlA toxin of Serratia induces P2Y2- and α5β1-dependent autophagy and bacterial clearance from host cells. J Biol Chem 2023; 299:105119. [PMID: 37527778 PMCID: PMC10474472 DOI: 10.1016/j.jbc.2023.105119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/03/2023] Open
Abstract
Serratia marcescens is an opportunistic human pathogen involved in antibiotic-resistant hospital acquired infections. Upon contact with the host epithelial cell and prior to internalization, Serratia induces an early autophagic response that is entirely dependent on the ShlA toxin. Once Serratia invades the eukaryotic cell and multiples inside an intracellular vacuole, ShlA expression also promotes an exocytic event that allows bacterial egress from the host cell without compromising its integrity. Several toxins, including ShlA, were shown to induce ATP efflux from eukaryotic cells. Here, we demonstrate that ShlA triggered a nonlytic release of ATP from Chinese hamster ovary (CHO) cells. Enzymatic removal of accumulated extracellular ATP (eATP) or pharmacological blockage of the eATP-P2Y2 purinergic receptor inhibited the ShlA-promoted autophagic response in CHO cells. Despite the intrinsic ecto-ATPase activity of CHO cells, the effective concentration and kinetic profile of eATP was consistent with the established affinity of the P2Y2 receptor and the known kinetics of autophagy induction. Moreover, eATP removal or P2Y2 receptor inhibition also suppressed the ShlA-induced exocytic expulsion of the bacteria from the host cell. Blocking α5β1 integrin highly inhibited ShlA-dependent autophagy, a result consistent with α5β1 transactivation by the P2Y2 receptor. In sum, eATP operates as the key signaling molecule that allows the eukaryotic cell to detect the challenge imposed by the contact with the ShlA toxin. Stimulation of P2Y2-dependent pathways evokes the activation of a defensive response to counteract cell damage and promotes the nonlytic clearance of the pathogen from the infected cell.
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Affiliation(s)
- Marisel R Tuttobene
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Julieta Schachter
- Facultad de Farmacia y Bioquímica, Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini", Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Cora L Álvarez
- Facultad de Farmacia y Bioquímica, Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini", Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Nicolás A Saffioti
- Facultad de Farmacia y Bioquímica, Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini", Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Instituto de Nanosistemas, Universidad Nacional de General San Martín, Buenos Aires, Argentina
| | - M Florencia Leal Denis
- Facultad de Farmacia y Bioquímica, Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini", Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina
| | - Horst Kessler
- Department Chemie, Institute for Advanced Study, Technical University Munich, Garching, Germany
| | - Eleonora García Véscovi
- Instituto de Biología Molecular y Celular de Rosario, Consejo Nacional de Investigaciones Científicas y Tecnológicas, Universidad Nacional de Rosario, Rosario, Argentina.
| | - Pablo J Schwarzbaum
- Facultad de Farmacia y Bioquímica, Instituto de Química y Físico-Química Biológicas "Prof. Alejandro C. Paladini", Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Universidad de Buenos Aires (UBA), Buenos Aires, Argentina; Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Universidad de Buenos Aires (UBA), Buenos Aires, Argentina.
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Kutryb-Zając B, Kawecka A, Nasadiuk K, Braczko A, Stawarska K, Caiazzo E, Koszałka P, Cicala C. Drugs targeting adenosine signaling pathways: A current view. Biomed Pharmacother 2023; 165:115184. [PMID: 37506580 DOI: 10.1016/j.biopha.2023.115184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 07/06/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
Adenosine is an endogenous nucleoside that regulates many physiological and pathological processes. It is derived from either the intracellular or extracellular dephosphorylation of adenosine triphosphate and interacts with cell-surface G-protein-coupled receptors. Adenosine plays a substantial role in protecting against cell damage in areas of increased tissue metabolism and preventing organ dysfunction in pathological states. Targeting adenosine metabolism and receptor signaling may be an effective therapeutic approach for human diseases, including cardiovascular and central nervous system disorders, rheumatoid arthritis, asthma, renal diseases, and cancer. Several lines of evidence have shown that many drugs exert their beneficial effects by modulating adenosine signaling pathways but this knowledge urgently needs to be summarized, and most importantly, actualized. The present review collects pharmaceuticals and pharmacological or diagnostic tools that target adenosine signaling in their primary or secondary mode of action. We overviewed FDA-approved drugs as well as those currently being studied in clinical trials. Among them are already used in clinic A2A adenosine receptor modulators like istradefylline or regadenoson, but also plenty of anti-platelet, anti-inflammatory, or immunosuppressive, and anti-cancer drugs. On the other hand, we investigated dozens of specific adenosine pathway regulators that are tested in clinical trials to treat human infectious and noninfectious diseases. In conclusion, targeting purinergic signaling represents a great therapeutic challenge. The actual knowledge of the involvement of adenosinergic signaling as part of the mechanism of action of old drugs has open a path not only for drug-repurposing but also for new therapeutic strategies.
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Affiliation(s)
- Barbara Kutryb-Zając
- Department of Biochemistry, Medical University of Gdańsk, 80-211 Gdańsk, Poland.
| | - Ada Kawecka
- Department of Biochemistry, Medical University of Gdańsk, 80-211 Gdańsk, Poland
| | - Khrystyna Nasadiuk
- Department of Biochemistry, Medical University of Gdańsk, 80-211 Gdańsk, Poland
| | - Alicja Braczko
- Department of Biochemistry, Medical University of Gdańsk, 80-211 Gdańsk, Poland
| | - Klaudia Stawarska
- Department of Biochemistry, Medical University of Gdańsk, 80-211 Gdańsk, Poland
| | - Elisabetta Caiazzo
- Department of Pharmacy, School of Medicine, University of Naple Federico II, 80131 Naples, Italy
| | - Patrycja Koszałka
- Laboratory of Cell Biology and Immunology, Institute of Medical Biotechnology and Experimental Oncology, Intercollegiate Faculty of Biotechnology University of Gdańsk and Medical University of Gdańsk, Medical University of Gdańsk, 80-211 Gdańsk, Poland
| | - Carla Cicala
- Department of Pharmacy, School of Medicine, University of Naple Federico II, 80131 Naples, Italy
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Schmidt HM, DeVallance ER, Lewis SE, Wood KC, Annarapu GK, Carreño M, Hahn SA, Seman M, Maxwell BA, Hileman EA, Xu JZ, Velayutham M, Geldenhuys WJ, Vitturi DA, Shiva S, Kelley EE, Straub AC. Release of hepatic xanthine oxidase (XO) to the circulation is protective in intravascular hemolytic crisis. Redox Biol 2023; 62:102636. [PMID: 36906950 PMCID: PMC10025133 DOI: 10.1016/j.redox.2023.102636] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 02/09/2023] [Accepted: 02/11/2023] [Indexed: 02/15/2023] Open
Abstract
Xanthine oxidase (XO) catalyzes the catabolism of hypoxanthine to xanthine and xanthine to uric acid, generating oxidants as a byproduct. Importantly, XO activity is elevated in numerous hemolytic conditions including sickle cell disease (SCD); however, the role of XO in this context has not been elucidated. Whereas long-standing dogma suggests elevated levels of XO in the vascular compartment contribute to vascular pathology via increased oxidant production, herein, we demonstrate, for the first time, that XO has an unexpected protective role during hemolysis. Using an established hemolysis model, we found that intravascular hemin challenge (40 μmol/kg) resulted in a significant increase in hemolysis and an immense (20-fold) elevation in plasma XO activity in Townes sickle cell phenotype (SS) sickle mice compared to controls. Repeating the hemin challenge model in hepatocyte-specific XO knockout mice transplanted with SS bone marrow confirmed the liver as the source of enhanced circulating XO as these mice demonstrated 100% lethality compared to 40% survival in controls. In addition, studies in murine hepatocytes (AML12) revealed hemin mediates upregulation and release of XO to the medium in a toll like receptor 4 (TLR4)-dependent manner. Furthermore, we demonstrate that XO degrades oxyhemoglobin and releases free hemin and iron in a hydrogen peroxide-dependent manner. Additional biochemical studies revealed purified XO binds free hemin to diminish the potential for deleterious hemin-related redox reactions as well as prevents platelet aggregation. In the aggregate, data herein reveals that intravascular hemin challenge induces XO release by hepatocytes through hemin-TLR4 signaling, resulting in an immense elevation of circulating XO. This increased XO activity in the vascular compartment mediates protection from intravascular hemin crisis by binding and potentially degrading hemin at the apical surface of the endothelium where XO is known to be bound and sequestered by endothelial glycosaminoglycans (GAGs).
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Affiliation(s)
- Heidi M Schmidt
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Evan R DeVallance
- Center for Inhalation Toxicology, West Virginia University School of Medicine, Morgantown, WV, USA; Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Sara E Lewis
- Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Katherine C Wood
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Gowtham K Annarapu
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Mara Carreño
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Scott A Hahn
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Madison Seman
- Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Brooke A Maxwell
- Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Emily A Hileman
- Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA
| | - Julia Z Xu
- Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA; Division of Hematology /Oncology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | | | - Werner J Geldenhuys
- Department of Pharmaceutical Sciences, School of Pharmacy, West Virginia University, Morgantown, WV, USA; Department of Neuroscience, School of Medicine, West Virginia University, Morgantown, WV, USA
| | - Dario A Vitturi
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA; Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Sruti Shiva
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA; Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA
| | - Eric E Kelley
- Department of Physiology and Pharmacology, Health Sciences Center, West Virginia University, Morgantown, WV, USA.
| | - Adam C Straub
- Department of Pharmacology and Chemical Biology, University of Pittsburgh, Pittsburgh, PA, USA; Heart, Lung, Blood and Vascular Medicine Institute, University of Pittsburgh, Pittsburgh, PA, USA.
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Okazaki R, Kohzaki M, Kai M, Jiang Y, Kubo T, Ootsuyama A, Sado T, Suzuki K, Tateishi S, Mori K. Relationship between haematological data and radiation doses of TEPCO workers before and after the FDNNP accident. JOURNAL OF RADIATION RESEARCH 2023; 64:261-272. [PMID: 36610721 PMCID: PMC10599404 DOI: 10.1093/jrr/rrac089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 11/02/2022] [Indexed: 06/17/2023]
Abstract
We evaluated the correlation between radiation dose and the medical examination data of Tokyo Electric Power Company Holdings, Inc (TEPCO) employees working during the Fukushima Daiichi Nuclear Power Plant (FDNPP) accident in 2011. This study included 2164 male TEPCO workers who received periodic medical examinations from March 2006 to January 2013. First, we conducted log-linear regression analyses using the haematological data of 585 emergency workers and confounding factors to examine the effect of internal radiation exposure in March 2011. Since external radiation exposure was a major influence, we then evaluated the correlation between both internal and external radiation dose and the haematological data of 1801 emergency workers and confounding factors before and after the accident. Among 585 workers, internal radiation exposure in March 2011 alone was mainly due to thyroid doses (0.1-10 Gy) but not to bone marrow (BM) doses (0.01-1 mGy). Compared to before and after the accident, we found that the levels of monocytes, eosinophils (Eos) and basophils increased slightly, whereas the frequency of smoking and alcohol consumption decreased substantially. External dose exposure was positively correlated with haemoglobin (Hb), red blood cell and Eos but negatively correlated with age, haematocrit and frequency of alcohol consumption. Among these variables, Hb exhibited the strongest correlation with external dose. Regarding the correlation with Hb, although there is a possibility that confounding factors other than exposure were not evaluated, our findings on emergency workers can serve as a reference for the evaluation of health conditions during the emergency period of future nuclear-related accidents.
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Affiliation(s)
- Ryuji Okazaki
- Department of Radiobiology and Hygiene Management, Institute of Industrial Ecological
Sciences, University of Occupational and Environmental
Health, Japan, Kitakyushu 807-8555, Japan
| | - Masaoki Kohzaki
- Department of Radiobiology and Hygiene Management, Institute of Industrial Ecological
Sciences, University of Occupational and Environmental
Health, Japan, Kitakyushu 807-8555, Japan
| | - Michiaki Kai
- New Department Preparatory Office, Nippon Bunri University,
Oita 870-0397, Japan
| | - Ying Jiang
- Department of Health Development, Institute of Industrial Ecological Sciences,
University of Occupational and Environmental Health,
Japan, Kitakyushu 807-8555, Japan
| | - Tatsuhiko Kubo
- Department of Public Health and Health Policy, School of Medicine,
Hiroshima University, Hiroshima
739-8511, Japan
| | - Akira Ootsuyama
- Department of Radiation Biology and Health, School of Medicine,
University of Occupational and Environmental Health,
Japan, Kitakyushu 807-8555, Japan
| | - Toshihiko Sado
- Research Center for Radiation Protection, National Institute of
Radiological Sciences, Chiba 263-0024, Japan
| | - Katsunori Suzuki
- Division of Infection Control and Prevention, University of Occupational
and Environmental Health, Japan, Kitakyushu
807-8555, Japan
| | - Seiichiro Tateishi
- Disaster Occupational Health Center, Institute of Industrial Ecological Sciences,
University of Occupational and Environmental Health, Japan,
807-8555, Japan
| | - Koji Mori
- Department of Occupational Health Practice and Management, Institute of Industrial
Ecological Sciences, University of Occupational and Environmental
Health, Japan, Kitakyushu 807-8555, Japan
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8
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Pettersen JS, Høg FF, Nielsen FD, Møller-Jensen J, Jørgensen MG. Global transcriptional responses of pneumococcus to human blood components and cerebrospinal fluid. Front Microbiol 2022; 13:1060583. [PMID: 36620004 PMCID: PMC9812572 DOI: 10.3389/fmicb.2022.1060583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 11/22/2022] [Indexed: 12/24/2022] Open
Abstract
Streptococcus pneumoniae (pneumococcus) is a leading cause of severe invasive infectious diseases such as sepsis and meningitis. Understanding how pneumococcus adapts and survive in the human bloodstream environment and cerebrospinal fluid (CSF) is important for development of future treatment strategies. This study investigates the global transcriptional response of pneumococcus to human blood components and CSF acquired from discarded and anonymized patient samples. Extensive transcriptional changes to human blood components were observed during early stages of interaction. Plasma-specific responses were primarily related to metabolic components and include strong downregulation of fatty acid biosynthesis genes, and upregulation of nucleotide biosynthesis genes. No transcriptional responses specific to the active plasma proteins (e.g., complement proteins) were observed during early stages of interaction as demonstrated by a differential expression analysis between plasma and heat-inactivated plasma. The red blood cell (RBC)-specific response was far more complex, and included activation of the competence system, differential expression of several two-component systems, phosphotransferase systems and transition metal transporter genes. Interestingly, most of the changes observed for CSF were also observed for plasma. One of the few CSF-specific responses, not observed for plasma, was a strong downregulation of the iron acquisition system piuBCDA. Intriguingly, this transcriptomic analysis also uncovers significant differential expression of more than 20 small non-coding RNAs, most of them in response to RBCs, including small RNAs from uncharacterized type I toxin-antitoxin systems. In summary, this transcriptomic study identifies key pneumococcal metabolic pathways and regulatory genes involved with adaptation to human blood and CSF. Future studies should uncover the potential involvement of these factors with virulence in-vivo.
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Xia S, Zhang M, Liu H, Dong H, Wu N, Wiedermann CJ, Andaluz-Ojeda D, Chen H, Li N. Heme oxygenase-1 as a predictor of sepsis-induced acute kidney injury: a cross-sectional study. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:1177. [PMID: 36467337 PMCID: PMC9708490 DOI: 10.21037/atm-22-4793] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/07/2022] [Indexed: 09/08/2023]
Abstract
BACKGROUND Sepsis patients suffer from severe inflammation and poor prognosis. Oxidative stress and local inflammation that results from sepsis can trigger organ injury, including acute kidney injury (AKI). Previous studies have shown that heme oxygenase-1 (HO-1) is overexpressed in proximal tubular cells under oxidative stress and has significant cytoprotective and anti-inflammatory effects. Heme-induced inflammation in sepsis is antagonized by increased tissue expression of heme oxygenase-1 (HO-1), which impacts on AKI development. The investigators observed intrarenal HO-1 expression and corresponding potential increases in plasma and urinary HO-1 protein concentrations in four different AKI models. Since serum levels of HO-1 reflect HO-1 expression, we aimed to investigate whether serum HO-1 could predict the development of AKI in sepsis patient. METHODS A total of 83 sepsis patients were enrolled in this study including septic patients with AKI and sepsis patients without AKI. According to the definition of septic shock and the global kidney diagnostic criteria described in the Kidney Disease: Improving Global Outcomes (KDIGO), patients were allocated to the sepsis and septic shock groups with and without AKI, respectively. The serum levels of HO-1 were measured by enzyme-linked immunosorbent assays (ELISA). Statistical analyses were performed using SPSS software. RESULTS There were statistically significant differences between septic patients with AKI and sepsis patients without AKI in terms of Sequential Organ Failure Assessment (SOFA) score, hospitalization time, and laboratory indicators including serum HO-1, creatine kinase MB (CK-MB), troponin I (TnI), urea, myoglobin (MYO), serum creatinine (Scr), procalcitonin, and activated partial thromboplastin time. Serum levels of alkaline phosphatase (ALP), urea, MYO, Scr, procalcitonin, activated partial thromboplastin time, and prothrombin time exhibited significant differences among the four groups. The concentration of serum HO-1 was higher in sepsis-induced AKI compared with sepsis patients without AKI. Serum HO-1 levels were increased in patients with sepsis shock-induced AKI. The area under the receiver operating characteristic (ROC) curve for serum HO-1 combined with Scr was 0.885 [95% confidence interval (CI): 0.761-1.000]. CONCLUSIONS Serum HO-1 is positively correlated with sepsis-induced AKI. These findings suggest that measurement of serum HO-1 may play a diagnostic and prediction role in sepsis-induced AKI.
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Affiliation(s)
- Shilin Xia
- Clinical Laboratory of Integrative Medicine, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Meishuai Zhang
- Emergency Department, Dalian University Affiliated Xinhua Hospital, Dalian, China
| | - Han Liu
- Department of Oral Pathology, Dalian Medical University, Dalian, China
| | - Haibin Dong
- Emergency Department, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Nannan Wu
- Emergency Department, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Christian J. Wiedermann
- Department of Public Health, Medical Decision Making and HTA, University of Health Sciences, Medical Informatics and Technology, Hall, Austria
| | - David Andaluz-Ojeda
- Intensive Care Unit Department, Hospital Universitario HM Sanchinarro, Hospitales Madrid, Madrid, Spain
| | - Huiqing Chen
- Emergency Department, the First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Nan Li
- Emergency Department, the First Affiliated Hospital of Dalian Medical University, Dalian, China
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10
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Abd Aziz NAW, Iezhitsa I, Agarwal R, Bakar NS, Abd Latiff A, Ismail NM. Neuroprotection by Trans-Resveratrol in Rats With Intracerebral Hemorrhage: Insights into the Role of Adenosine A1 Receptors. J Neuropathol Exp Neurol 2022; 81:596-613. [PMID: 35799401 DOI: 10.1093/jnen/nlac047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Given the neuroprotective effects of trans-resveratrol (RV), this study aimed to investigate the involvement of the adenosine A1 receptor (A1R) in RV-mediated neuroprotection in a rat intracerebral hemorrhage (ICH) model induced by intrastriatal injection of collagenase. Rats were divided into 5 groups: (1) control, (2) sham-operated, (3) ICH pretreated with vehicle, (4) ICH pretreated with RV, and (5) ICH pretreated with RV and the A1R antagonist DPCPX. At 48 hours after ICH, the rats were subjected to neurological testing. Brain tissues were assessed for neuronal density and morphological features using routine and immunohistochemical staining. Expression of tumor necrosis factor-α (TNF-α), caspase-3, and RIPK3 proteins was examined using ELISA. A1R, MAPK P38, Hsp90, TrkB, and BDNF genes were examined using RT-qPCR. RV protected against neurological deficits and neuronal depletion, restored the expression of TNF-α, CASP3, RIPK3, A1R, and Hsp90, and increased BDNF/TrkB. DPCPX abolished the effects of RV on neurological outcomes, neuronal density, CASP3, RIPK3, A1R, Hsp90, and BDNF. These data indicate that the neuroprotection by RV involves A1R and inhibits CASP3-dependent apoptosis and RIPK3-dependent necroptosis in the perihematoma region; this is likely to be mediated by crosstalk between A1R and the BDNF/TrkB pathway.
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Affiliation(s)
- Noor Azliza Wani Abd Aziz
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
| | - Igor Iezhitsa
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
| | - Renu Agarwal
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
| | - Nor Salmah Bakar
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
| | - Azian Abd Latiff
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
| | - Nafeeza Mohd Ismail
- From the Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA, NSB, NMI); Centre of Preclinical Science Studies, Faculty of Dentistry, Universiti Teknologi MARA, Sungai Buloh, Malaysia (NAWAA); School of Medicine, International Medical University, Kuala Lumpur, Malaysia (II, RA); Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Volgograd, Russia (II); and Department of Anatomy, Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh, Malaysia (AAL)
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11
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Wang H, Obeidy P, Wang Z, Zhao Y, Wang Y, Su QP, Cox CD, Ju LA. Fluorescence-coupled micropipette aspiration assay to examine calcium mobilization caused by red blood cell mechanosensing. EUROPEAN BIOPHYSICS JOURNAL : EBJ 2022; 51:135-146. [PMID: 35286429 PMCID: PMC8964638 DOI: 10.1007/s00249-022-01595-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 02/21/2022] [Accepted: 02/24/2022] [Indexed: 12/16/2022]
Abstract
Mechanical stimuli such as tension, compression, and shear stress play critical roles in the physiological functions of red blood cells (RBCs) and their homeostasis, ATP release, and rheological properties. Intracellular calcium (Ca2+) mobilization reflects RBC mechanosensing as they transverse the complex vasculature. Emerging studies have demonstrated the presence of mechanosensitive Ca2+ permeable ion channels and their function has been implicated in the regulation of RBC volume and deformability. However, how these mechanoreceptors trigger Ca2+ influx and subsequent cellular responses are still unclear. Here, we introduce a fluorescence-coupled micropipette aspiration assay to examine RBC mechanosensing at the single-cell level. To achieve a wide range of cell aspirations, we implemented and compared two negative pressure adjusting apparatuses: a homemade water manometer (- 2.94 to 0 mmH2O) and a pneumatic high-speed pressure clamp (- 25 to 0 mmHg). To visualize Ca2+ influx, RBCs were pre-loaded with an intensiometric probe Cal-520 AM, then imaged under a confocal microscope with concurrent bright-field and fluorescent imaging at acquisition rates of 10 frames per second. Remarkably, we observed the related changes in intracellular Ca2+ levels immediately after aspirating individual RBCs in a pressure-dependent manner. The RBC aspirated by the water manometer only displayed 1.1-fold increase in fluorescence intensity, whereas the RBC aspirated by the pneumatic clamp showed up to threefold increase. These results demonstrated the water manometer as a gentle tool for cell manipulation with minimal pre-activation, while the high-speed pneumatic clamp as a much stronger pressure actuator to examine cell mechanosensing directly. Together, this multimodal platform enables us to precisely control aspiration and membrane tension, and subsequently correlate this with intracellular calcium concentration dynamics in a robust and reproducible manner.
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Affiliation(s)
- Haoqing Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia.,Heart Research Institute, Newtown, NSW, 2042, Australia
| | - Peyman Obeidy
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Zihao Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,School of Aerospace, Mechanical and Mechatronic Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia
| | - Yunduo Zhao
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Molecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia
| | - Yao Wang
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia.,Cellular and Genetic Medicine Unit, School of Medical Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Qian Peter Su
- Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia.,Heart Research Institute, Newtown, NSW, 2042, Australia.,School of Biomedical Engineering, Faculty of Engineering and Information Technology, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Charles D Cox
- Molecular Cardiology and Biophysics Division, Victor Chang Cardiac Research Institute, Sydney, NSW, 2010, Australia.,Faculty of Medicine, St. Vincent's Clinical School, University of New South Wales, Sydney, NSW, 2010, Australia
| | - Lining Arnold Ju
- School of Biomedical Engineering, Faculty of Engineering, The University of Sydney, Darlington, NSW, 2008, Australia. .,Charles Perkins Centre, The University of Sydney, Camperdown, NSW, 2006, Australia. .,Heart Research Institute, Newtown, NSW, 2042, Australia.
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12
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Purinergic signaling is essential for full Psickle activation by hypoxia and by normoxic acid pH in mature human sickle red cells and in vitro-differentiated cultured human sickle reticulocytes. Pflugers Arch 2022; 474:553-565. [PMID: 35169901 DOI: 10.1007/s00424-022-02665-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 12/03/2021] [Accepted: 01/11/2022] [Indexed: 10/19/2022]
Abstract
Paracrine ATP release by erythrocytes has been shown to regulate endothelial cell function via purinergic signaling, and this erythoid-endothelial signaling network is pathologically dysregulated in sickle cell disease. We tested the role of extracellular ATP-mediated purinergic signaling in the activation of Psickle, the mechanosensitive Ca2+-permeable cation channel of human sickle erythrocytes (SS RBC). Psickle activation increases intracellular [Ca2+] to stimulate activity of the RBC Gardos channel, KCNN4/KCa3.1, leading to cell shrinkage and accelerated deoxygenation-activated sickling.We found that hypoxic activation of Psickle recorded by cell-attached patch clamp in SS RBC is inhibited by extracellular apyrase, which hydrolyzes extracellular ATP. Hypoxic activation of Psickle was also inhibited by the pannexin-1 inhibitor, probenecid, and by the P2 antagonist, suramin. A Psickle-like activity was also activated in normoxic SS RBC (but not in control red cells) by bath pH 6.0. Acid-activated Psickle-like activity was similarly blocked by apyrase, probenecid, and suramin, as well as by the Psickle inhibitor, Grammastola spatulata mechanotoxin-4 (GsMTx-4).In vitro-differentiated cultured human sickle reticulocytes (SS cRBC), but not control cultured reticulocytes, also exhibited hypoxia-activated Psickle activity that was abrogated by GsMTx-4. Psickle-like activity in SS cRBC was similarly elicited by normoxic exposure to acid pH, and this acid-stimulated activity was nearly completely blocked by apyrase, probenecid, and suramin, as well as by GsMTx-4.Thus, hypoxia-activated and normoxic acid-activated cation channel activities are expressed in both SS RBC and SS cRBC, and both types of activation appear to be mediated or greatly amplified by autocrine or paracrine purinergic signaling.
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13
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Stivala S, Gobbato S, Bonetti N, Camici GG, Lüscher TF, Beer JH. Dietary alpha-linolenic acid reduces platelet activation and collagen-mediated cell adhesion in sickle cell disease mice. J Thromb Haemost 2022; 20:375-386. [PMID: 34758193 DOI: 10.1111/jth.15581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 10/20/2021] [Accepted: 11/04/2021] [Indexed: 10/19/2022]
Abstract
BACKGROUND Sickle cell disease (SCD) is a genetic hemoglobinopathy associated with high morbidity and mortality. The primary cause of hospitalization in SCD is vaso-occlusive crisis (VOC), mediated by alteration of red blood cells, platelets, immune cells and a pro-adhesive endothelium. OBJECTIVES We investigated the potential therapeutic use of the plant-derived omega-3 alpha-linolenic acid (ALA) in SCD. METHODS Berkeley mice were fed a low- or high-ALA diet for 4 weeks, followed by analysis of liver fibrosis, endothelial activation, platelet activation and formation of platelet-neutrophils aggregates. Aggregation of platelets over collagen under flow after high-ALA was compared to a blocking P-selectin Fab. RESULTS Dietary high-ALA was able to reduce the number of sickle cells in blood smear, liver fibrosis, and the expression of adhesion molecules on the endothelium of aorta, lungs, liver and kidneys (VCAM-1, ICAM-1 and vWF). Specific parameters of platelet activation were blunted after high-ALA feeding, notably P-selectin exposure and the formation of neutrophil-platelet aggregates, along with a correspondingly reduced expression of PSGL-1 on neutrophils. By comparison, in vivo treatment of SCD mice with the anti-P-selectin Fab was able to similarly reduce the formation of neutrophil-platelet aggregates, but did not reduce GpIbα shedding nor the activation of the αIIb β3 integrin in response to thrombin. Both ALA feeding and P-selectin blocking significantly reduced collagen-mediated cell adhesion under flow. CONCLUSIONS Dietary ALA is able to reduce the pro-inflammatory and pro-thrombotic state occurring in the SCD mouse model and may represent a novel, inexpensive and readily available therapeutic strategy for SCD.
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Affiliation(s)
- Simona Stivala
- Laboratory for Platelet Research, Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Sara Gobbato
- Laboratory for Platelet Research, Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Nicole Bonetti
- Laboratory for Platelet Research, Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
| | - Giovanni G Camici
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
- Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
- Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Thomas F Lüscher
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
- Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
- Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
- Cardiology, Royal Brompton and Harefield Hospitals, Imperial College London, London, UK
| | - Jürg H Beer
- Laboratory for Platelet Research, Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
- Center for Molecular Cardiology, University of Zurich, Schlieren, Switzerland
- Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland
- Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
- Cardiology, Royal Brompton and Harefield Hospitals, Imperial College London, London, UK
- Internal Medicine Cantonal Hospital of Baden, Baden, Switzerland
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14
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McMahon TJ, Darrow CC, Hoehn BA, Zhu H. Generation and Export of Red Blood Cell ATP in Health and Disease. Front Physiol 2021; 12:754638. [PMID: 34803737 PMCID: PMC8602689 DOI: 10.3389/fphys.2021.754638] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/05/2021] [Indexed: 12/16/2022] Open
Abstract
Metabolic homeostasis in animals depends critically on evolved mechanisms by which red blood cell (RBC) hemoglobin (Hb) senses oxygen (O2) need and responds accordingly. The entwined regulation of ATP production and antioxidant systems within the RBC also exploits Hb-based O2-sensitivity to respond to various physiologic and pathophysiologic stresses. O2 offloading, for example, promotes glycolysis in order to generate both 2,3-DPG (a negative allosteric effector of Hb O2 binding) and ATP. Alternatively, generation of the nicotinamide adenine dinucleotide phosphate (NADPH) critical for reducing systems is favored under the oxidizing conditions of O2 abundance. Dynamic control of ATP not only ensures the functional activity of ion pumps and cellular flexibility, but also contributes to the availability of vasoregulatory ATP that can be exported when necessary, for example in hypoxia or upon RBC deformation in microvessels. RBC ATP export in response to hypoxia or deformation dilates blood vessels in order to promote efficient O2 delivery. The ability of RBCs to adapt to the metabolic environment via differential control of these metabolites is impaired in the face of enzymopathies [pyruvate kinase deficiency; glucose-6-phosphate dehydrogenase (G6PD) deficiency], blood banking, diabetes mellitus, COVID-19 or sepsis, and sickle cell disease. The emerging availability of therapies capable of augmenting RBC ATP, including newly established uses of allosteric effectors and metabolite-specific additive solutions for RBC transfusates, raises the prospect of clinical interventions to optimize or correct RBC function via these metabolite delivery mechanisms.
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Affiliation(s)
- Timothy J McMahon
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Durham VA and Duke University Medical Centers, Durham, NC, United States
| | - Cole C Darrow
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Durham VA and Duke University Medical Centers, Durham, NC, United States
| | - Brooke A Hoehn
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Durham VA and Duke University Medical Centers, Durham, NC, United States
| | - Hongmei Zhu
- Department of Medicine, Division of Pulmonary, Allergy, and Critical Care Medicine, Durham VA and Duke University Medical Centers, Durham, NC, United States
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15
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Ferguson BS, Neidert LE, Rogatzki MJ, Lohse KR, Gladden LB, Kluess HA. Red blood cell ATP release correlates with red blood cell hemolysis. Am J Physiol Cell Physiol 2021; 321:C761-C769. [PMID: 34495762 DOI: 10.1152/ajpcell.00510.2020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The precise matching of blood flow to skeletal muscle during exercise remains an important area of investigation. Release of adenosine triphosphate (ATP) from red blood cells (RBCs) is postulated as a mediator of peripheral vascular tone in response to shear stress, hypoxia, and mechanical deformation. We tested the following hypotheses: 1) RBCs of different densities contain different quantities of ATP; 2) hypoxia is a stimulus for ATP release from RBCs; and 3) hypoxic ATP release from RBCs is related to RBC lysis. Human blood was drawn from male and female volunteers (n = 11); the RBCs were isolated and washed. A Percoll gradient was used to separate RBCs based on cellular density. Density groups were then resuspended to 4% hematocrit and exposed to normoxia or hypoxia in a tonometer. Equilibrated samples were drawn and centrifuged; paired analyses of ATP (luminescence via a luciferase-catalyzed reaction) and hemolysis (Harboe spectrophotometric absorbance assay) were measured in the supernatant. ATP release was not different among low-density cells versus middle-density versus high-density cells. Similarly, hemoglobin (Hb) release was not different among the red blood cell subsets. No difference was found for either ATP release or Hb release following matched exposure to normoxic or hypoxic gas. The concentrations of ATP and Hb for all subsets combined were linearly correlated (r = 0.59, P ≤ 0.001). With simultaneous probing for Hb and ATP in the supernatant of each sample, we conclude that ATP release from RBCs can be explained by hemolysis and that hypoxia per se does not stimulate either ATP release or Hb release from RBCs.
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Affiliation(s)
- Brian S Ferguson
- College of Applied Health Sciences, University of Illinois, Chicago, Illinois
| | - Leslie E Neidert
- Naval Medical Research Unit San Antonio, Joint Base San Antonio-Ft. Sam Houston, San Antonio, Texas
| | - Matthew J Rogatzki
- Department of Health and Exercise Science, Appalachian State University, Boone, North Carolina
| | - Keith R Lohse
- Physical Therapy Program and Department of Neurology, Washington University School of Medicine, Saint Louis, Missouri
| | | | - Heidi A Kluess
- School of Kinesiology, Auburn University, Auburn, Alabama
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16
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Wang Q, Zennadi R. The Role of RBC Oxidative Stress in Sickle Cell Disease: From the Molecular Basis to Pathologic Implications. Antioxidants (Basel) 2021; 10:antiox10101608. [PMID: 34679742 PMCID: PMC8533084 DOI: 10.3390/antiox10101608] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/04/2021] [Accepted: 10/06/2021] [Indexed: 01/14/2023] Open
Abstract
Sickle cell disease (SCD) is an inherited monogenic disorder and the most common severe hemoglobinopathy in the world. SCD is characterized by a point mutation in the β-globin gene, which results in hemoglobin (Hb) S production, leading to a variety of mechanistic and phenotypic changes within the sickle red blood cell (RBC). In SCD, the sickle RBCs are the root cause of the disease and they are a primary source of oxidative stress since sickle RBC redox state is compromised due to an imbalance between prooxidants and antioxidants. This imbalance in redox state is a result of a continuous production of reactive oxygen species (ROS) within the sickle RBC caused by the constant endogenous Hb autoxidation and NADPH oxidase activation, as well as by a deficiency in the antioxidant defense system. Accumulation of non-neutralized ROS within the sickle RBCs affects RBC membrane structure and function, leading to membrane integrity deficiency, low deformability, phosphatidylserine exposure, and release of micro-vesicles. These oxidative stress-associated RBC phenotypic modifications consequently evoke a myriad of physiological changes involved in multi-system manifestations. Thus, RBC oxidative stress in SCD can ultimately instigate major processes involved in organ damage. The critical role of the sickle RBC ROS production and its regulation in SCD pathophysiology are discussed here.
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17
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Keller TCS, Lechauve C, Keller AS, Brooks S, Weiss MJ, Columbus L, Ackerman HC, Cortese-Krott MM, Isakson BE. The role of globins in cardiovascular physiology. Physiol Rev 2021; 102:859-892. [PMID: 34486392 DOI: 10.1152/physrev.00037.2020] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Globin proteins exist in every cell type of the vasculature, from erythrocytes to endothelial cells, vascular smooth muscle cells, and peripheral nerve cells. Many globin subtypes are also expressed in muscle tissues (including cardiac and skeletal muscle), in other organ-specific cell types, and in cells of the central nervous system. The ability of each of these globins to interact with molecular oxygen (O2) and nitric oxide (NO) is preserved across these contexts. Endothelial α-globin is an example of extra-erythrocytic globin expression. Other globins, including myoglobin, cytoglobin, and neuroglobin are observed in other vascular tissues. Myoglobin is observed primarily in skeletal muscle and smooth muscle cells surrounding the aorta or other large arteries. Cytoglobin is found in vascular smooth muscle but can also be expressed in non-vascular cell types, especially in oxidative stress conditions after ischemic insult. Neuroglobin was first observed in neuronal cells, and its expression appears to be restricted mainly to the central and peripheral nervous systems. Brain and central nervous system neurons expressing neuroglobin are positioned close to many arteries within the brain parenchyma and can control smooth muscle contraction and, thus, tissue perfusion and vascular reactivity. Overall, reactions between NO and globin heme-iron contribute to vascular homeostasis by regulating vasodilatory NO signals and scaveging reactive species in cells of the mammalian vascular system. Here, we discuss how globin proteins affect vascular physiology with a focus on NO biology, and offer perspectives for future study of these functions.
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Affiliation(s)
- T C Steven Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Christophe Lechauve
- Department of Hematology, St. Jude's Children's Research Hospital, Memphis, TN, United States
| | - Alexander S Keller
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Pharmacology, University of Virginia School of Medicine, Charlottesville, VA, United States
| | - Steven Brooks
- Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, United States
| | - Mitchell J Weiss
- Department of Hematology, St. Jude's Children's Research Hospital, Memphis, TN, United States
| | - Linda Columbus
- Department of Chemistry, University of Virginia, Charlottesville, VA, United States
| | - Hans C Ackerman
- Physiology Unit, Laboratory of Malaria and Vector Research, National Institute of Allergy and Infectious Diseases, Rockville, MD, United States
| | - Miriam M Cortese-Krott
- Myocardial Infarction Research Laboratory, Department of Cardiology, Pulmunology, and Angiology, Medical Faculty, Heinrich-Heine-University of Düsseldorf, Düsseldorf, Germany.,Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Brant E Isakson
- Robert M. Berne Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, United States.,Department of Molecular Physiology and Biophysics, University of Virginia School of Medicine, Charlottesville, VA, United States
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18
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Zhou Z. Purinergic interplay between erythrocytes and platelets in diabetes-associated vascular dysfunction. Purinergic Signal 2021; 17:705-712. [PMID: 34410591 PMCID: PMC8677852 DOI: 10.1007/s11302-021-09807-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 07/07/2021] [Indexed: 11/30/2022] Open
Abstract
Cardiovascular complications in diabetes are the leading causes for high morbidity and mortality. It has been shown that alteration of purinergic signaling contributes to diabetes-associated cardiovascular complications. Red blood cells (RBCs) and platelets play a fundamental role in regulation of oxygen transport and hemostasis, respectively. Of note, these cells undergo purinergic dysfunction in diabetes. Recent studies have established a novel function of RBCs as disease mediators for the development of endothelial dysfunction in type 2 diabetes (T2D). RBC-released ATP is defective in T2D, which has implication for induction of vascular dysfunction by dysregulating purinergic signaling. Platelets are hyperactive in diabetes. ADP-mediated P2Y1 and P2Y12 receptor activation contributes to platelet aggregation and targeting P2Y receptors particularly P2Y12 receptor in platelets is effective for the treatment of cardiovascular events. In contrast to other P2Y12 receptor antagonists, platelet-targeting drug ticagrelor has potential to initiate purinergic signaling in RBCs for the beneficial cardiovascular outcomes. It is increasingly clear that altered vascular purinergic signaling mediated by various nucleotides and nucleoside contributes to diabetes-associated vascular dysfunction. However, the contribution of complex purinergic networks between RBCs and platelets to the vascular dysfunction in diabetes remains unclear. This study discusses the possible interplay of RBCs and platelets via the purinergic network for diabetes-associated vascular dysfunction.
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Affiliation(s)
- Zhichao Zhou
- Division of Cardiology, Department of Medicine Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.
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19
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Yap KN, Zhang Y. Revisiting the question of nucleated versus enucleated erythrocytes in birds and mammals. Am J Physiol Regul Integr Comp Physiol 2021; 321:R547-R557. [PMID: 34378417 DOI: 10.1152/ajpregu.00276.2020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Erythrocyte enucleation is thought to have evolved in mammals to support their energetic cost of high metabolic activities. However, birds face similar selection pressure yet possess nucleated erythrocytes. Current hypotheses on the mammalian erythrocyte enucleation claim that the absence of cell organelles allows erythrocytes to 1) pack more hemoglobin into the cells to increase oxygen carrying capacity and 2) decrease erythrocyte size for increased surface area-to-volume ratio, and improved ability to traverse small capillaries. In this article, we first empirically tested current hypotheses using both conventional and phylogenetically informed analysis comparing literature values of mean cell hemoglobin concentration (MCHC) and mean cell volume (MCV) between 181 avian and 194 mammalian species. We found no difference in MCHC levels between birds and mammals using both conventional and phylogenetically corrected analysis. MCV was higher in birds than mammals according to conventional analysis, but the difference was lost when we controlled for phylogeny. These results suggested that avian and mammalian erythrocytes may employ different strategies to solve a common problem. To further investigate existing hypotheses or develop new hypothesis, we need to understand the functions of various organelles in avian erythrocytes. Consequently, we covered potential physiological functions of various cell organelles in avian erythrocytes based on current knowledge, while making explicit comparisons to their mammalian counterparts. Finally, we proposed by taking an integrative and comparative approach, using tools from molecular biology to evolutionary biology, would allow us to better understand the fundamental physiological functions of various components of avian and mammalian erythrocytes.
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Affiliation(s)
- Kang Nian Yap
- Department of Biological Sciences, Auburn University, Auburn, AL, United States
| | - Yufeng Zhang
- School of Health Studies, University of Memphis, Memphis, TN, United States
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20
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Grygorczyk R, Boudreault F, Ponomarchuk O, Tan JJ, Furuya K, Goldgewicht J, Kenfack FD, Yu F. Lytic Release of Cellular ATP: Physiological Relevance and Therapeutic Applications. Life (Basel) 2021; 11:life11070700. [PMID: 34357072 PMCID: PMC8307140 DOI: 10.3390/life11070700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/28/2021] [Accepted: 07/13/2021] [Indexed: 01/01/2023] Open
Abstract
The lytic release of ATP due to cell and tissue injury constitutes an important source of extracellular nucleotides and may have physiological and pathophysiological roles by triggering purinergic signalling pathways. In the lungs, extracellular ATP can have protective effects by stimulating surfactant and mucus secretion. However, excessive extracellular ATP levels, such as observed in ventilator-induced lung injury, act as a danger-associated signal that activates NLRP3 inflammasome contributing to lung damage. Here, we discuss examples of lytic release that we have identified in our studies using real-time luciferin-luciferase luminescence imaging of extracellular ATP. In alveolar A549 cells, hypotonic shock-induced ATP release shows rapid lytic and slow-rising non-lytic components. Lytic release originates from the lysis of single fragile cells that could be seen as distinct spikes of ATP-dependent luminescence, but under physiological conditions, its contribution is minimal <1% of total release. By contrast, ATP release from red blood cells results primarily from hemolysis, a physiological mechanism contributing to the regulation of local blood flow in response to tissue hypoxia, mechanical stimulation and temperature changes. Lytic release of cellular ATP may have therapeutic applications, as exemplified by the use of ultrasound and microbubble-stimulated release for enhancing cancer immunotherapy in vivo.
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Affiliation(s)
- Ryszard Grygorczyk
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
- Département de Médecine, Université de Montréal, Montréal, QC H2X 0A9, Canada
- Correspondence: (R.G.); (F.Y.)
| | - Francis Boudreault
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
| | - Olga Ponomarchuk
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
| | - Ju Jing Tan
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
| | - Kishio Furuya
- Graduate School of Medicine, Nagoya University, Nagoya 464-8601, Japan;
| | - Joseph Goldgewicht
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
| | - Falonne Démèze Kenfack
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
| | - François Yu
- Centre de Recherche du Centre Hospitalier de l’Université de Montréal (CRCHUM), Montréal, QC H2X 0A9, Canada; (F.B.); (O.P.); (J.J.T.); (J.G.); (F.D.K.)
- Département de Radiologie, Radio-Oncologie et Médecine Nucléaire, Université de Montréal, Montréal, QC H2X 0A9, Canada
- Institut de Génie Biomédical, Université de Montréal, Montréal, QC H2X 0A9, Canada
- Correspondence: (R.G.); (F.Y.)
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21
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Rahman MH, Wong CHN, Lee MM, Chan MK, Ho YP. Efficient encapsulation of functional proteins into erythrocytes by controlled shear-mediated membrane deformation. LAB ON A CHIP 2021; 21:2121-2128. [PMID: 34002198 DOI: 10.1039/d0lc01077d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Red blood cells (RBCs) are attractive carriers of biomolecular payloads due to their biocompatibility and the ability to shelter their encapsulated cargo. Commonly employed strategies to encapsulate payloads into RBCs, such as hypotonic shock, membrane fusion or electroporation, often suffer from low throughput and unrecoverable membrane impairment. This work describes an investigation of a method to encapsulate protein payloads into RBCs by controlling membrane deformation either transiently or extendedly in a microfluidic channel. Under the optimized conditions, the loading efficiency of enhanced green fluorescent protein into mouse RBCs increased was about 2.5- and 4-fold compared to that with osmotic entrapment using transient and extended deformation, respectively. Significantly, mouse RBCs loaded with human arginase exhibit higher enzymatic activity and membrane integrity compared to their counterparts loaded by osmotic entrapment. These features together with the fact that this shear-mediated encapsulation strategy allows loading with physiological buffers highlight the key advantages of this approach compared to traditional osmotic entrapment.
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Affiliation(s)
- Md Habibur Rahman
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China. and Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Chung Hong Nathaniel Wong
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China and School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Marianne M Lee
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China and School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Michael K Chan
- Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China and School of Life Sciences, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
| | - Yi-Ping Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China. and Centre for Novel Biomaterials, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China and Hong Kong Branch of CAS Center for Excellence in Animal Evolution and Genetics, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China and The Ministry of Education Key Laboratory of Regeneration Medicine, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR, China
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22
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Mahdi A, Cortese-Krott MM, Kelm M, Li N, Pernow J. Novel perspectives on redox signaling in red blood cells and platelets in cardiovascular disease. Free Radic Biol Med 2021; 168:95-109. [PMID: 33789125 DOI: 10.1016/j.freeradbiomed.2021.03.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Revised: 03/01/2021] [Accepted: 03/07/2021] [Indexed: 12/13/2022]
Abstract
The fundamental physiology of circulating red blood cells (RBCs) and platelets involving regulation of oxygen transport and hemostasis, respectively, are well-described in the literature. Their abundance in the circulation and their interaction with the vascular wall and each other have attracted the attention of other putative physiological and pathophysiological effects of these cells. RBCs and platelets are both important regulators of redox balance harboring powerful pro-oxidant and anti-oxidant (enzymatic and non-enzymatic) capacities. They are also involved in the regulation of vascular tone mainly via export of nitric oxide bioactivity and adenosine triphosphate. Of further importance are emerging observations that these cells undergo functional alterations when exposed to risk factors for cardiovascular disease and during developed cardiometabolic diseases. Under these conditions, the RBCs and platelets contribute to increased oxidative stress by their formation of reactive species including superoxide anion radical, hydrogen peroxide and peroxynitrite. These alterations trigger key changes in the vascular wall characterized by enhanced oxidative stress, reduced nitric oxide bioavailability and endothelial dysfunction. Additional pathophysiological effects are triggered in the heart resulting in increased susceptibility to ischemia-reperfusion injury with impairment in cardiac function. Pharmacological interventions aiming at restoring circulating cell function has been shown to exert marked beneficial effects on cardiovascular function. In this review, we summarize the current knowledge of RBC and platelet biology with special focus on redox biology, their roles in the development of cardiovascular disease and potential therapeutic strategies targeting RBC and platelet dysfunction. Finally, the complex and scarcely understood interaction between RBCs and platelets is discussed.
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Affiliation(s)
- Ali Mahdi
- Department of Medicine, Division of Cardiology, Karolinska Institutet, Stockholm, Sweden
| | - Miriam M Cortese-Krott
- Department of Cardiology, Pulmonology and Angiology Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany; Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
| | - Malte Kelm
- Department of Cardiology, Pulmonology and Angiology Medical Faculty, Heinrich Heine University of Düsseldorf, Düsseldorf, Germany
| | - Nailin Li
- Department of Medicine, Division of Cardiovascular Medicine, Karolinska Institutet, Stockholm, Sweden
| | - John Pernow
- Department of Medicine, Division of Cardiology, Karolinska Institutet, Stockholm, Sweden; Department of Cardiology, Heart and Vascular Division, Karolinska University Hospital, Stockholm, Sweden.
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23
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Gong Y, Ren P, Deng J, Hou Z, Guo T, Hao S, Wang B. Role of mass effect and trehalose on early erythrolysis after experimental intracerebral hemorrhage. J Neurochem 2021; 160:88-99. [PMID: 33797772 DOI: 10.1111/jnc.15361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/23/2021] [Accepted: 03/25/2021] [Indexed: 11/30/2022]
Abstract
The mechanisms of brain injury after intracerebral hemorrhage (ICH) involve mass effect-induced primary injury and secondary injury caused by a pathologic response to the hematoma. Considerable attentions have recently been paid to the mechanisms and therapeutic strategy for secondary brain injury due to no overall benefit from early surgery compared with initial conservative treatment. However, it is unclear whether there is a causal relationship between mass effect and secondary brain injury. Here, the role of mass effect on early erythrolysis after experimental ICH was investigated based on the poly(N-isopropylacrylamide) (PNIPAM) ICH model. Autologous blood and PNIPAM hydrogel were co-injected into the right basal ganglia of rats to induce different degrees of mass effect, but with a constant hematoma. The influences of different mass effect and time courses on erythrolysis and brain damages after ICH were investigated. Furthermore, the protective effect of trehalose against erythrolysis after ICH was evaluated. The results showed that mass effect caused erythrocyte morphological change at 24 hr after ICH. The released hemoglobin was quantitatively evaluated by a polynomial concerning with the mass effect, the volume of hematoma, and the time of ICH. An obvious increase in heme oxygenase-1 (HO-1) and ionized calcium binding adaptor molecule-1 (Iba-1) expression, iron deposition, cell death, and neurological deficits was observed with increasing mass effect. Moreover, trehalose alleviated brain injury by inhibiting erythrolysis after ICH. These data demonstrated that mass effect accelerated the erythrolysis and brain damages after ICH, which could be relieved through trehalose therapy.
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Affiliation(s)
- Yuhua Gong
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Peng Ren
- School of Life Sciences and Engineering, Southwest University of Science and Technology, Mianyang, China
| | - Jia Deng
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Zongkun Hou
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Tingwang Guo
- College of Environment and Resources, Chongqing Technology and Business University, Chongqing, China
| | - Shilei Hao
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
| | - Bochu Wang
- Key Laboratory of Biorheological Science and Technology, Ministry of Education, College of Bioengineering, Chongqing University, Chongqing, China
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24
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Kirby BS, Sparks MA, Lazarowski ER, Lopez Domowicz DA, Zhu H, McMahon TJ. Pannexin 1 channels control the hemodynamic response to hypoxia by regulating O 2-sensitive extracellular ATP in blood. Am J Physiol Heart Circ Physiol 2021; 320:H1055-H1065. [PMID: 33449849 PMCID: PMC7988759 DOI: 10.1152/ajpheart.00651.2020] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 01/07/2021] [Accepted: 01/07/2021] [Indexed: 12/23/2022]
Abstract
Pannexin 1 (Panx1) channels export ATP and may contribute to increased concentration of the vasodilator ATP in plasma during hypoxia in vivo. We hypothesized that Panx1 channels and associated ATP export contribute to hypoxic vasodilation, a mechanism that facilitates the matching of oxygen delivery to metabolic demand of tissue. Male and female mice devoid of Panx1 (Panx1-/-) and wild-type controls (WT) were anesthetized, mechanically ventilated, and instrumented with a carotid artery catheter or femoral artery flow transducer for hemodynamic and plasma ATP monitoring during inhalation of 21% (normoxia) or 10% oxygen (hypoxia). ATP export from WT vs. Panx1-/-erythrocytes (RBC) was determined ex vivo via tonometer experimentation across progressive deoxygenation. Mean arterial pressure (MAP) was similar in Panx1-/- (n = 6) and WT (n = 6) mice in normoxia, but the decrease in MAP in hypoxia seen in WT was attenuated in Panx1-/- mice (-16 ± 9% vs. -2 ± 8%; P < 0.05). Hindlimb blood flow (HBF) was significantly lower in Panx1-/- (n = 6) vs. WT (n = 6) basally, and increased in WT but not Panx1-/- mice during hypoxia (8 ± 6% vs. -10 ± 13%; P < 0.05). Estimation of hindlimb vascular conductance using data from the MAP and HBF experiments showed an average response of 28% for WT vs. -9% for Panx1-/- mice. Mean venous plasma ATP during hypoxia was 57% lower in Panx1-/- (n = 6) vs. WT mice (n = 6; P < 0.05). Mean hypoxia-induced ATP export from RBCs from Panx1-/- mice (n = 8) was 82% lower than that from WT (n = 8; P < 0.05). Panx1 channels participate in hemodynamic responses consistent with hypoxic vasodilation by regulating hypoxia-sensitive extracellular ATP levels in blood.NEW & NOTEWORTHY Export of vasodilator ATP from red blood cells requires pannexin 1. Blood plasma ATP elevations in response to hypoxia in mice require pannexin 1. Hemodynamic responses to hypoxia are accompanied by increased plasma ATP in mice in vivo and require pannexin 1.
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Affiliation(s)
- Brett S Kirby
- Division of Hematology, Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - Matthew A Sparks
- Division of Nephrology, Department of Medicine, Duke University Medical Center, Durham, North Carolina
- Departments of Medicine and Research and Development, Durham Veterans Affairs Medical Center, Durham, North Carolina
| | - Eduardo R Lazarowski
- Department of Medicine, Marsico Lung Institute/UNC Cystic Fibrosis Research Center, University of North Carolina, Chapel Hill, North Carolina
| | - Denise A Lopez Domowicz
- Division of Critical Care Medicine, Department of Pediatrics, Duke University Medical Center, Durham, North Carolina
| | - Hongmei Zhu
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Duke University Medical Center, Durham, North Carolina
| | - Timothy J McMahon
- Department of Medicine, Marsico Lung Institute/UNC Cystic Fibrosis Research Center, University of North Carolina, Chapel Hill, North Carolina
- Division of Pulmonary, Allergy, Critical Care Medicine, Department of Medicine, Duke University Medical Center, Durham, North Carolina
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25
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Cortese-Krott MM. Red Blood Cells as a "Central Hub" for Sulfide Bioactivity: Scavenging, Metabolism, Transport, and Cross-Talk with Nitric Oxide. Antioxid Redox Signal 2020; 33:1332-1349. [PMID: 33205994 DOI: 10.1089/ars.2020.8171] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Significance: Sulfide was revealed to be an endogenous signaling molecule regulating a plethora of cellular functions. It is involved in the regulation of fundamental processes, including blood pressure regulation, suspended animation, and metabolic activity of mitochondria, pain, and inflammation. The underlying biochemical pathways and pharmacological targets are still largely unidentified. Recent Advances: Red blood cells (RBCs) are known as oxygen transporters and were proposed to contribute to cardiovascular homeostasis by regulating nitric oxide (NO) metabolism, also via interaction of hemoglobin with nitrite and NO itself. Interestingly, recent evidence indicates that RBCs may also play a central role in systemic sulfide metabolism and homeostasis, and, potentially, in the crosstalk with NO. Heme-containing proteins such as hemoglobin were shown to be targeted by both NO and sulfide. In this article, we aim at revising and discussing the potential impact of RBCs on systemic sulfide metabolism in the cardiovascular system. Critical Issues: Although the synthetic pathways and the reactivity of hemoglobin and other heme proteins with sulfide and NO are known, the in vivo role of RBCs in sulfide metabolism, physiology, pharmacology, and its pathophysiological implications have not been characterized so far. Future Directions: To allow a better understanding of the role of RBCs in systemic sulfide metabolism and its cross-talk with NO, basic and translational science studies should be focused on dissecting the enzymatic and nonenzymatic sulfur metabolic pathways in RBCs in vivo and their impact on the cardiovascular system in animal models and clinical settings.
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Affiliation(s)
- Miriam M Cortese-Krott
- Myocardial Infarction Research Laboratory, Division of Cardiology, Pulmonology and Vascular Medicine, Medical Faculty, Heinrich-Heine-University, Düsseldorf, Germany.,Department of Physiology and Pharmacology, Karolinska Institutet, Stockholm, Sweden
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26
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Papadopoulos C, Panopoulou M, Anagnostopoulos K, Tentes I. Immune and Metabolic Interactions of Human Erythrocytes: A Molecular Perspective. Endocr Metab Immune Disord Drug Targets 2020; 21:843-853. [PMID: 33148159 DOI: 10.2174/1871530320666201104115016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 09/15/2020] [Accepted: 09/24/2020] [Indexed: 11/22/2022]
Abstract
Apart from their main function as oxygen carriers in vertebrates, erythrocytes are also involved in immune regulation. By circulating throughout the body, the erythrocytes are exposed and interact with tissues that are damaged as a result of a disease. In this study, we summarize the literature regarding the contribution of erythrocytes to immune regulation and metabolism. Under the circumstances of a disease state, the erythrocytes may lose their antioxidant capacity and release Damage Associated Molecular Patterns, resulting in the regulation of innate and adaptive immunity. In addition, the erythrocytes scavenge and affect the levels of chemokines, circulating cell-free mtDNA, and C3b attached immune complexes. Furthermore, through surface molecules, erythrocytes control the function of T lymphocytes, macrophages, and dendritic cells. Through an array of enzymes, red blood cells contribute to the pool of blood's bioactive lipids. Finally, the erythrocytes contribute to reverse cholesterol transport through various mechanisms. Our study is highlighting overlooked molecular interactions between erythrocytes and immunity and metabolism, which could lead to the discovery of potent therapeutic targets for immunometabolic diseases.
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Affiliation(s)
| | - Maria Panopoulou
- Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
| | | | - Ioannis Tentes
- Department of Medicine, Democritus University of Thrace, Alexandroupolis, Greece
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27
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Wernly B, Erlinge D, Pernow J, Zhou Z. Ticagrelor: a cardiometabolic drug targeting erythrocyte-mediated purinergic signaling? Am J Physiol Heart Circ Physiol 2020; 320:H90-H94. [PMID: 33095055 DOI: 10.1152/ajpheart.00570.2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Cardiometabolic diseases lead to vascular complications, which cause increasing morbidity and mortality worldwide. The underlying mechanisms are multifactorial and complex but may involve altered purinergic signaling that significantly contributes to cardiovascular dysfunction. Ticagrelor is a successful purinergic drug directly targeting ADP-mediated P2Y12R signaling for platelet aggregation and is widely used in patients with acute coronary syndrome. In addition, ticagrelor can target red blood cells (RBCs) to release ATP and inhibit adenosine uptake by RBCs, which subsequently activate purinergic signaling. This involvement in purinergic signaling may allow ticagrelor to mediate pleiotropic effects and contribute to the beneficial cardiovascular outcomes observed in clinical studies. Recent studies have established a novel function of RBCs, which is that RBCs act as disease mediators for the development of cardiovascular complications in type 2 diabetes (T2D). RBC-released ATP is defective in T2D, which has implications for the induction of vascular dysfunction by dysregulating purinergic signaling. Ticagrelor might target RBCs and restore the bioavailability of ATP and adenosine, thereby attenuating cardiovascular complications. The present perspective discusses the pleiotropic effect of ticagrelor, with a focus on the possibility of ticagrelor for the treatment of cardiometabolic complications by targeting RBCs and initiating purinergic activation. A better understanding of the proposed cardiometabolic effects could support novel clinical indications for ticagrelor application.
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Affiliation(s)
- Bernhard Wernly
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden.,Clinic of Internal Medicine II, Department of Cardiology, Paracelsus Medical University of Salzburg, Salzburg, Austria
| | - David Erlinge
- Department of Clinical Sciences, Cardiology, Lund University Hospital, Lund, Sweden
| | - John Pernow
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - Zhichao Zhou
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
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28
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Zhan X, Zhong X, Choi JH, Su L, Wang J, Nair-Gill E, Anderton P, Li X, Tang M, Russell J, Ludwig S, Gallagher T, Beutler B. Adenosine monophosphate deaminase 3 null mutation causes reduction of naive T cells in mouse peripheral blood. Blood Adv 2020; 4:3594-3605. [PMID: 32761233 PMCID: PMC7422112 DOI: 10.1182/bloodadvances.2020001762] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 06/18/2020] [Indexed: 01/15/2023] Open
Abstract
Adenosine monophosphate deaminase 3 (Ampd3) encodes the erythrocyte isoform of the adenosine monophosphate (AMP) deaminase gene family. Mutations in this gene have been reported in humans, leading to autosomal-recessive erythrocyte AMP deaminase deficiency. However, the mutation is considered clinically asymptomatic. Using N-ethyl-N-nitrosourea mutagenesis to find mutations that affect peripheral lymphocyte populations, we identified 5 Ampd3 mutations (Ampd3guangdong, Ampd3carson, Ampd3penasco, Ampd3taos, and Ampd3commanche) that strongly correlated with a reduction in naive CD4+ T and naive CD8+ T-cell populations. Causation was confirmed by targeted ablation of Ampd3. Knockout mice had reduced frequencies of CD62LhiCD44lo CD4+ naive and CD8+ naive T cells. Interestingly, these phenotypes were restricted to T cells circulating in peripheral blood and were not seen in T cells from secondary lymphoid organs (lymph nodes and spleen). We found that reduction of naive T cells in the peripheral blood of Ampd3-/- mice was caused by T-cell-extrinsic factor(s), which we hypothesize to be elevated levels of adenosine triphosphate released by Ampd3-deficient erythrocytes. These findings provide an example in which disruption of an erythrocyte-specific protein can affect the physiological status of lymphocytes in peripheral blood.
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Affiliation(s)
- Xiaoming Zhan
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Xue Zhong
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Jin Huk Choi
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Lijing Su
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Jianhui Wang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Evan Nair-Gill
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Priscilla Anderton
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Xiaohong Li
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Miao Tang
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Jamie Russell
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Sara Ludwig
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Thomas Gallagher
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
| | - Bruce Beutler
- Center for the Genetics of Host Defense, University of Texas Southwestern Medical Center, Dallas, TX
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CHANGES IN THE MORPHOLOGIC STATE OF RED BLOOD CELLS IN PATIENTS WITH POLYTRAUMA. EUREKA: HEALTH SCIENCES 2020. [DOI: 10.21303/2504-5679.2020.001373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The measurement of RBC indices is of particular importance as an indirect intermediate component of the recovery process after exposure to hypoxia, ischemia, hypothermia in patients with traumatic disease due to polytrauma.
The aim of this study was to evaluate the parameters of the morphologic state of red blood cells as a reaction of patients with traumatic disease.
Materials and methods.A prospective study was carried out evaluation of 120 patients suffering from polytrauma. The patients were divided into 3 groups according to the principle of using additional substances as a part of IC. The parameters of morphologic state of red blood cells were studied.
Results and discussion. The course of acute and early periods of traumatic disease has accompanied variability morphological forms of red blood cells, as evidenced by a decrease in MCV and RDW increased levels of the 3rd to 5th day. The optimized therapy used in the treatment of patients, has a positive effect on the parameters of red blood cells, contributes to a better recovery of red blood cells after hypoxia resulting multiple trauma.
Conclusion. The study has demonstrated variations in the morphologic properties of red blood cells in the acute and early period of traumatic disease, as confirmed by pathological changes of the erythrocyte indices. The administration of the proposed therapy with the use of D-fructose-1.6-diphosphate sodium salt of hydrate has a positive effect on the parameters of red blood cells, contributes to a better recovery after hypoxia resulting multiple trauma. Given this, the calculations of the red blood cell indices may carry additional diagnostic information, which allows identify trends for not obvious pathological changes and quality of treatment.
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30
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Guo J, Agola JO, Serda R, Franco S, Lei Q, Wang L, Minster J, Croissant JG, Butler KS, Zhu W, Brinker CJ. Biomimetic Rebuilding of Multifunctional Red Blood Cells: Modular Design Using Functional Components. ACS NANO 2020; 14:7847-7859. [PMID: 32391687 DOI: 10.1021/acsnano.9b08714] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The design and synthesis of artificial materials that mimic the structures, mechanical properties, and ultimately functionalities of biological cells remains a current holy grail of materials science. Here, based on a silica cell bioreplication approach, we report the design and construction of synthetic rebuilt red blood cells (RRBCs) that fully mimic the broad properties of native RBCs: size, biconcave shape, deformability, oxygen-carrying capacity, and long circulation time. Four successive nanoscale processing steps (RBC bioreplication, layer-by-layer polymer deposition, and precision silica etching, followed by RBC ghost membrane vesicle fusion) are employed for RRBC construction. A panel of physicochemical analyses including zeta-potential measurement, fluorescence microscopy, and antibody-mediated agglutination assay proved the recapitulation of RBC shape, size, and membrane structure. Flow-based deformation studies carried out in a microfluidic blood capillary model confirmed the ability of RRBCs to deform and pass through small slits and reconstitute themselves in a manner comparable to native RBCs. Circulation studies of RRBCs conducted ex ovo in a chick embryo and in vivo in a mouse model demonstrated the requirement of both deformability and native cell membrane surface to achieve long-term circulation. To confer additional non-native functionalities to RRBCs, we developed modular procedures with which to load functional cargos such as hemoglobin, drugs, magnetic nanoparticles, and ATP biosensors within the RRBC interior to enable various functions, including oxygen delivery, therapeutic drug delivery, magnetic manipulation, and toxin biosensing and detection. Taken together, RRBCs represent a class of long-circulating RBC-inspired artificial hybrid materials with a broad range of potential applications.
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Affiliation(s)
- Jimin Guo
- Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
- Department of Internal Medicine, Molecular Medicine, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Jacob Ongudi Agola
- Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Rita Serda
- Department of Internal Medicine, Molecular Medicine, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Stefan Franco
- Department of Internal Medicine, Molecular Medicine, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Qi Lei
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P.R. China
| | - Lu Wang
- Department of Biochemistry and Molecular Biology, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Joshua Minster
- Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Jonas G Croissant
- Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
| | - Kimberly S Butler
- Nanobiology Department, Sandia National Laboratories, Albuquerque, New Mexico 87185, United States
| | - Wei Zhu
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, P.R. China
| | - C Jeffrey Brinker
- Center for Micro-Engineered Materials, Department of Chemical and Biological Engineering, University of New Mexico, Albuquerque, New Mexico 87131, United States
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31
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Gironi B, Kahveci Z, McGill B, Lechner BD, Pagliara S, Metz J, Morresi A, Palombo F, Sassi P, Petrov PG. Effect of DMSO on the Mechanical and Structural Properties of Model and Biological Membranes. Biophys J 2020; 119:274-286. [PMID: 32610089 PMCID: PMC7376087 DOI: 10.1016/j.bpj.2020.05.037] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 04/08/2020] [Accepted: 05/22/2020] [Indexed: 12/23/2022] Open
Abstract
Dimethyl sulfoxide (DMSO) is widely used in a number of biological and biotechnological applications, mainly because of its effects on the cell plasma membrane, but the molecular origins of this action are yet to be fully clarified. In this work, we used two- and three-component synthetic membranes (liposomes) and the plasma membrane of human erythrocytes to investigate the effect of DMSO when added to the membrane-solvating environment. Fourier transform infrared spectroscopy and thermal fluctuation spectroscopy revealed significant differences in the response of the two types of liposome systems to DMSO in terms of the bilayer thermotropic behavior, available free volume of the bilayer, its excess surface area, and bending elasticity. DMSO also alters the mechanical properties of the erythrocyte membrane in a concentration-dependent manner and is capable of increasing membrane permeability to ATP at even relatively low concentrations (3% v/v and above). Taken in its entirety, these results show that DMSO is likely to have a differential effect on heterogeneous biological membranes, depending on their local composition and structure, and could affect membrane-hosted biological functions.
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Affiliation(s)
- Beatrice Gironi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy
| | - Zehra Kahveci
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Beth McGill
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Bob-Dan Lechner
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Stefano Pagliara
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Jeremy Metz
- Living Systems Institute and School of Biosciences, University of Exeter, Exeter, United Kingdom
| | - Assunta Morresi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy
| | - Francesca Palombo
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom
| | - Paola Sassi
- Dipartimento di Chimica Biologia e Biotecnologie, Università di Perugia, Perugia, Italy.
| | - Peter G Petrov
- Department of Physics and Astronomy, University of Exeter, Exeter, United Kingdom.
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32
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Pernow J, Mahdi A, Yang J, Zhou Z. Red blood cell dysfunction: a new player in cardiovascular disease. Cardiovasc Res 2020; 115:1596-1605. [PMID: 31198931 DOI: 10.1093/cvr/cvz156] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Revised: 04/07/2019] [Accepted: 06/10/2019] [Indexed: 02/06/2023] Open
Abstract
The primary role of red blood cells (RBCs) is to transport oxygen to the tissues and carbon dioxide to the lungs. However, emerging evidence suggests an important role of the RBC beyond being just a passive carrier of the respiratory gases. The RBCs are of importance for redox balance and are actively involved in the regulation of vascular tone, especially during hypoxic and ischaemic conditions by the release of nitric oxide (NO) bioactivity and adenosine triphosphate. The role of the RBC has gained further interest after recent discoveries demonstrating a markedly altered function of the cell in several pathological conditions. Such alterations include increased adhesion capability, increased formation of reactive oxygen species as well as altered protein content and enzymatic activities. Beyond signalling increased oxidative stress, the altered function of RBCs is characterized by reduced export of NO bioactivity regulated by increased arginase activity. Of further importance, the altered function of RBCs has important implications for several cardiovascular disease conditions. RBCs have been shown to induce endothelial dysfunction and to increase cardiac injury during ischaemia-reperfusion in diabetes mellitus. Finally, this new knowledge has led to novel therapeutic possibilities to intervene against cardiovascular disease by targeting signalling in the RBC. These novel data open up an entirely new view on the underlying pathophysiological mechanisms behind the cardiovascular disease processes in diabetes mellitus mediated by the RBC. This review highlights the current knowledge regarding the role of RBCs in cardiovascular regulation with focus on their importance for cardiovascular dysfunction in pathological conditions and therapeutic possibilities for targeting RBCs in cardiovascular disease.
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Affiliation(s)
- John Pernow
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden.,Heart and Vascular Division, Karolinska University Hospital, Stockholm, Sweden
| | - Ali Mahdi
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Jiangning Yang
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
| | - Zhichao Zhou
- Division of Cardiology, Department of Medicine, Karolinska Institutet, Stockholm, Sweden
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33
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Xin M, Feng J, Hao Y, You J, Wang X, Yin X, Shang P, Ma D. Cyclic adenosine monophosphate in acute ischemic stroke: some to update, more to explore. J Neurol Sci 2020; 413:116775. [PMID: 32197118 DOI: 10.1016/j.jns.2020.116775] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 03/10/2020] [Accepted: 03/11/2020] [Indexed: 12/14/2022]
Abstract
The development of effective treatment for ischemic stroke, which is a common cause of morbidity and mortality worldwide, remains an unmet goal because the current first-line treatment management interventional therapy has a strict time window and serious complications. In recent years, a growing body of evidence has shown that the elevation of intracellular and extracellular cyclic adenosine monophosphate (cAMP) alleviates brain damage after ischemic stroke by attenuating neuroinflammation in the central nervous system and peripheral immune system. In the central nervous system, upregulated intracellular cAMP signaling can alleviate immune-mediated damage by restoring neuronal morphology and function, inhibiting microglia migration and activation, stabilizing the membrane potential of astrocytes and improving the cellular functions of endothelial cells and oligodendrocytes. Enhancement of the extracellular cAMP signaling pathway can improve neurological function by activating the cAMP-adenosine pathway to reduce immune-mediated damage. In the peripheral immune system, cAMP can act on various immune cells to suppress peripheral immune function, which can alleviate the inflammatory response in the central nervous system and improve the prognosis of acute cerebral ischemic injury. Therefore, cAMP may play key roles in reducing post-stroke neuroinflammatory damage. The protective roles of the cAMP indicate that the cAMP enhancing drugs such as cAMP supplements, phosphodiesterase inhibitors, adenylate cyclase agonists, which are currently used in the treatment of heart and lung diseases. They are potentially able to be applied as a new therapeutic strategy in ischemic stroke. This review focuses on the immune-regulating roles and the clinical implication of cAMP in acute ischemic stroke.
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Affiliation(s)
- Meiying Xin
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Jiachun Feng
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China.
| | - Yulei Hao
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Jiulin You
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Xinyu Wang
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Xiang Yin
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Pei Shang
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China
| | - Di Ma
- Department of Neurology, Jilin University First Hospital, Changchun, Jilin, China.
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34
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McMahon TJ. Red Blood Cell Deformability, Vasoactive Mediators, and Adhesion. Front Physiol 2019; 10:1417. [PMID: 31803068 PMCID: PMC6873820 DOI: 10.3389/fphys.2019.01417] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Accepted: 11/01/2019] [Indexed: 01/16/2023] Open
Abstract
Healthy red blood cells (RBCs) deform readily in response to shear stress in the circulation, facilitating their efficient passage through capillaries. RBCs also export vasoactive mediators in response to deformation and other physiological and pathological stimuli. Deoxygenation of RBC hemoglobin leads to the export of vasodilator and antiadhesive S-nitrosothiols (SNOs) and adenosine triphosphate (ATP) in parallel with oxygen transport in the respiratory cycle. Together, these mediated responses to shear stress and oxygen offloading promote the efficient flow of blood cells and in turn optimize oxygen delivery. In diseases including sickle cell anemia and conditions including conventional blood banking, these adaptive functions may be compromised as a result, for example, of limited RBC deformability, impaired mediator formation, or dysfunctional mediator export. Ongoing work, including single cell approaches, is examining relevant mechanisms and remedies in health and disease.
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Affiliation(s)
- Timothy J McMahon
- Durham VA Medical Center, Duke University, Durham, NC, United States
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35
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Hemolysis Derived Products Toxicity and Endothelium: Model of the Second Hit. Toxins (Basel) 2019; 11:toxins11110660. [PMID: 31766155 PMCID: PMC6891750 DOI: 10.3390/toxins11110660] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/02/2019] [Accepted: 11/06/2019] [Indexed: 12/16/2022] Open
Abstract
Vascular diseases are multifactorial, often requiring multiple challenges, or ‘hits’, for their initiation. Intra-vascular hemolysis illustrates well the multiple-hit theory where a first event lyses red blood cells, releasing hemolysis-derived products, in particular cell-free heme which is highly toxic for the endothelium. Physiologically, hemolysis derived-products are rapidly neutralized by numerous defense systems, including haptoglobin and hemopexin which scavenge hemoglobin and heme, respectively. Likewise, cellular defense mechanisms are involved, including heme-oxygenase 1 upregulation which metabolizes heme. However, in cases of intra-vascular hemolysis, those systems are overwhelmed. Heme exerts toxic effects by acting as a damage-associated molecular pattern and promoting, together with hemoglobin, nitric oxide scavenging and ROS production. In addition, it activates the complement and the coagulation systems. Together, these processes lead to endothelial cell injury which triggers pro-thrombotic and pro-inflammatory phenotypes. Moreover, among endothelial cells, glomerular ones display a particular susceptibility explained by a weaker capacity to counteract hemolysis injury. In this review, we illustrate the ‘multiple-hit’ theory through the example of intra-vascular hemolysis, with a particular focus on cell-free heme, and we advance hypotheses explaining the glomerular susceptibility observed in hemolytic diseases. Finally, we describe therapeutic options for reducing endothelial injury in hemolytic diseases.
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36
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Hoffman JF. Reflections on the crooked timber of red blood cell physiology. Blood Cells Mol Dis 2019; 79:102354. [PMID: 31449971 DOI: 10.1016/j.bcmd.2019.102354] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 08/16/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Joseph F Hoffman
- Department of Cellular and Molecular Physiology, Yale University School of Medicine, New Haven, CT 06520, United States.
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37
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Racine ML, Dinenno FA. Reduced deformability contributes to impaired deoxygenation-induced ATP release from red blood cells of older adult humans. J Physiol 2019; 597:4503-4519. [PMID: 31310005 DOI: 10.1113/jp278338] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2019] [Accepted: 07/15/2019] [Indexed: 12/17/2022] Open
Abstract
KEY POINTS Red blood cells (RBCs) release ATP in response to deoxygenation, which can increase blood flow to help match oxygen supply with tissue metabolic demand. This release of ATP is impaired in RBCs from older adults, but the underlying mechanisms are unknown. In this study, improving RBC deformability in older adults restored deoxygenation-induced ATP release, whereas decreasing RBC deformability in young adults reduced ATP release to the level of that of older adults. In contrast, treating RBCs with a phosphodiesterase 3 inhibitor did not affect ATP release in either age group, possibly due to intact intracellular signalling downstream of deoxygenation as indicated by preserved cAMP and ATP release responses to pharmacological Gi protein activation in RBCs from older adults. These findings are the first to demonstrate that the age-related decrease in RBC deformability is a primary mechanism of impaired deoxygenation-induced ATP release, which may have implications for treating impaired vascular control with advancing age. ABSTRACT In response to haemoglobin deoxygenation, red blood cells (RBCs) release ATP, which binds to endothelial purinergic receptors and stimulates vasodilatation. This ATP release is impaired in RBCs from older vs. young adults, but the underlying mechanisms are unknown. Using isolated RBCs from young (24 ± 1 years) and older (65 ± 2 years) adults, we tested the hypothesis that age-related changes in RBC deformability (Study 1) and cAMP signalling (Study 2) contribute to the impairment. RBC ATP release during normoxia ( P O 2 ∼112 mmHg) and hypoxia ( P O 2 ∼20 mmHg) was quantified with the luciferin-luciferase technique following RBC incubation with Y-27632 (Rho-kinase inhibitor to increase deformability), diamide (cell-stiffening agent), cilostazol (phosphodiesterase 3 inhibitor), or vehicle control. The mean change in RBC ATP release from normoxia to hypoxia in control conditions was significantly impaired in older vs. young (∼50% vs. ∼120%; P < 0.05). RBC deformability was also lower in older vs. young as indicated by a higher RBC transit time (RCTT) measured by blood filtrometry (RCTT: 8.541 ± 0.050 vs. 8.234 ± 0.098 a.u., respectively; P < 0.05). Y-27632 improved RBC deformability (RCTT: 8.228 ± 0.083) and ATP release (111.7 ± 17.2%) in older and diamide decreased RBC deformability (RCTT: 8.955 ± 0.114) and ATP release (67.4 ± 11.8%) in young (P < 0.05), abolishing the age group differences (P > 0.05). Cilostazol did not change ATP release in either age group (P > 0.05), and RBC cAMP and ATP release to pharmacological Gi protein activation was similar in both groups (P > 0.05). We conclude that decreased RBC deformability is a primary contributor to age-related impairments in RBC ATP release, which may have implications for impaired vascular control with advancing age.
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Affiliation(s)
- Matthew L Racine
- Human Cardiovascular Physiology Laboratory, Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, 80523, USA
| | - Frank A Dinenno
- Human Cardiovascular Physiology Laboratory, Department of Health and Exercise Science, Colorado State University, Fort Collins, CO, 80523, USA.,Cardiovascular Research Center, Colorado State University, Fort Collins, CO, 80523, USA
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38
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Role of Carbon Monoxide in the Mechanisms of Action of Extracellular ATP on Contractile Activity of Vascular Smooth Muscle Cells. Bull Exp Biol Med 2019; 167:363-366. [PMID: 31346880 DOI: 10.1007/s10517-019-04527-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Indexed: 10/26/2022]
Abstract
We studied the role of carbon monoxide (CO) in the effect of P2X and P2Y receptor agonist ATP on the tone of rat aorta segments with intact endothelium. ATP (1-1000 μM) and P2X receptor agonist α,β-MeATP (100 μM) relaxed segments precontracted with phenylephrine (10 μM), while UTP (100-1000 μM) increased the amplitude of phenylephrine-induced contraction. The relaxing effect of ATP was enhanced by CORM II (100 μM), NO synthase inhibitor L-NAME, and guanylate cyclase inhibitor ODQ and attenuated by ZnPP IX (100 μM). The constrictive effect of UTP was weakened by CORM II (100 μM), but was not changed by ZnPP IX (100 μM). ZnPP IX (100 μM) weakened the relaxation response to α,β-MeATP. Thus, ATP involves the CO-dependent signaling cascade through P2X receptors.
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39
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Sierra APR, Oliveira RA, Silva ED, Lima GHO, Benetti MP, Kiss MAP, Sierra CA, Ghorayeb N, Seto JT, Pesquero JB, Cury-Boaventura MF. Association Between Hematological Parameters and Iron Metabolism Response After Marathon Race and ACTN3 Genotype. Front Physiol 2019; 10:697. [PMID: 31244673 PMCID: PMC6580990 DOI: 10.3389/fphys.2019.00697] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 05/17/2019] [Indexed: 12/19/2022] Open
Abstract
α-Actinin-3 (ACTN3 R577X, rs.1815739) polymorphism is a genetic variation that shows the most consistent influence on metabolic pathway and muscle phenotype. XX genotype is associated with higher metabolic efficiency of skeletal muscle; however, the role of ACTN3 polymorphism in oxygen transport and utilization system has not yet been investigated. Therefore, the aim of this study was to determine the influence of ACTN3 polymorphisms on hematological and iron metabolism response induced by marathon race. Eighty-one Brazilian amateur male endurance runners participated in the study. Blood samples and urine were collected before; immediately after; and 1, 3, and 15 days after the marathon race. Urine, hematological parameters, iron metabolism, and ACTN3 genotyping analyses were performed. The marathon race induced a decrease in erythrocytes, Hb, and Ht, and an increase in hematuria, creatinine, myoglobin, red cell distribution width, mean corpuscular hemoglobin concentration, mean corpuscular hemoglobin, direct and indirect bilirubin and erythropoietin. Moreover, an elevation immediately or 1 day after the marathon race follows a reduction 3 or 15 days after the marathon race were observed on transferrin saturation and iron and transferrin levels. Hematological parameters and iron metabolism changes induced by marathon race were not observed in XX genotypes. Hematuria and decreased erythrocytes, Hb, Ht, and iron and transferrin levels were observed only in RR and/or RX genotypes but not in XX genotypes. The percentage of runners with hematuria, leukocyturia, iron deficiency, creatinine, myoglobin, and bilirubin imbalance was higher in RR compared to XX genotypes. ACTN3 polymorphism is associated with iron metabolism and hematological responses after endurance exercise. Despite these results being based on a small sample, they highlight a protective role of the XX genotype on hematological and renal changes induced by long-distance exercise. Therefore, these findings should be further replicated.
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Affiliation(s)
- Ana Paula Renno Sierra
- Department of Biodynamics of Human Movements, School of Physical Education and Sports, University of São Paulo, São Paulo, Brazil.,Sports Cardiology Department, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Rodrigo Assunção Oliveira
- Department of Interdisciplinary in Health Sciences, Institute of Physical Activity and Sports Sciences, Cruzeiro do Sul University, São Paulo, Brazil
| | - Elton Dias Silva
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | - Giscard Humberto Oliveira Lima
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil.,Department of Movement, Human and Health Sciences, Program of Human Movement and Sport Sciences, University of Rome "Foro Italico", Rome, Italy
| | - Marino Pereira Benetti
- Department of Biodynamics of Human Movements, School of Physical Education and Sports, University of São Paulo, São Paulo, Brazil
| | - Maria Augusta Pedanti Kiss
- Department of Biodynamics of Human Movements, School of Physical Education and Sports, University of São Paulo, São Paulo, Brazil
| | - Carlos Anibal Sierra
- Sports Cardiology Department, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Nabil Ghorayeb
- Sports Cardiology Department, Dante Pazzanese Institute of Cardiology, São Paulo, Brazil
| | - Jane T Seto
- Neuromuscular Research, Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - João Bosco Pesquero
- Department of Biophysics, Federal University of São Paulo, São Paulo, Brazil
| | - Maria Fernanda Cury-Boaventura
- Department of Interdisciplinary in Health Sciences, Institute of Physical Activity and Sports Sciences, Cruzeiro do Sul University, São Paulo, Brazil
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40
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Lippi G, Sanchis-Gomar F. Epidemiological, biological and clinical update on exercise-induced hemolysis. ANNALS OF TRANSLATIONAL MEDICINE 2019; 7:270. [PMID: 31355237 DOI: 10.21037/atm.2019.05.41] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Exercise-induced hemolysis can be conventionally defined as rupture and destruction of erythrocytes during physical exercise. The currently available epidemiologic information attests that a substantial degree of exercise-induced hemolysis is commonplace after short-, medium-, long- and ultra-long distance running, as reflected by significant decrease of serum or plasma haptoglobin and significant increase of plasma concentration (or overall blood content) of free hemoglobin. This paraphysiological intravascular hemolysis is typically mild (average variations of hemolysis biomarkers are usually comprised between 1.2- and 1.8-fold), almost self-limiting (completely resolving within 24-48 hours), with severity depending on athlete population, analytical technique used for detecting intravascular hemolysis, as well as on number, frequency and intensity of ground contacts, but not on running technique. Additional lines of evidence support the notion that both osmotic fragility and membrane structure of erythrocytes are considerably modified during endurance exercise. This fact goes hand in hand with findings that erythrocyte lifespan in runners is approximately 40% shorter than in sedentary controls. Direct mechanical injury caused by forceful ground contacts, repeated muscle contractile activity or vasoconstriction in internal organs are three potential sources of exercise-induced hemolysis, whilst metabolic abnormalities developing while exercising (e.g., hyperthermia, dehydration, hypotonic shock, hypoxia, lactic acidosis, shear stress, oxidative damage, proteolysis, increased concentration of catecholamines and lysolecithin) may actively contribute to trigger, accelerate or amplify this phenomenon. Although no systematic evidence is available, it seems also reasonable to hypothesize that patients bearing erythrocyte disorders may be particularly vulnerable to developing exercise-induced hemolysis.
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Affiliation(s)
- Giuseppe Lippi
- Section of Clinical Biochemistry, University of Verona, Verona, Italy
| | - Fabian Sanchis-Gomar
- Department of Physiology, Faculty of Medicine, University of Valencia and INCLIVA Biomedical Research Institute, Valencia, Spain
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41
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Kosmachevskaya OV, Nasybullina EI, Blindar VN, Topunov AF. Binding of Erythrocyte Hemoglobin to the Membrane to Realize Signal-Regulatory Function (Review). APPL BIOCHEM MICRO+ 2019. [DOI: 10.1134/s0003683819020091] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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Mikolajewicz N, Sehayek S, Wiseman PW, Komarova SV. Transmission of Mechanical Information by Purinergic Signaling. Biophys J 2019; 116:2009-2022. [PMID: 31053261 DOI: 10.1016/j.bpj.2019.04.012] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 03/26/2019] [Accepted: 04/08/2019] [Indexed: 12/27/2022] Open
Abstract
The skeleton constantly interacts and adapts to the physical world. We have previously reported that physiologically relevant mechanical forces lead to small repairable membrane injuries in bone-forming osteoblasts, resulting in release of ATP and stimulation of purinergic (P2) calcium responses in neighboring cells. The goal of this study was to develop a theoretical model describing injury-related ATP and ADP release, their extracellular diffusion and degradation, and purinergic responses in neighboring cells. After validation using experimental data for intracellular free calcium elevations, ATP, and vesicular release after mechanical stimulation of a single osteoblast, the model was scaled to a tissue-level injury to investigate how purinergic signaling communicates information about injuries with varying geometries. We found that total ATP released, peak extracellular ATP concentration, and the ADP-mediated signaling component contributed complementary information regarding the mechanical stimulation event. The total amount of ATP released governed spatial factors, such as the maximal distance from the injury at which purinergic responses were stimulated. The peak ATP concentration reflected the severity of an individual cell injury, allowing to discriminate between minor and severe injuries that released similar amounts of ATP because of differences in injury repair, and determined temporal aspects of the response, such as signal propagation velocity. ADP-mediated signaling became relevant only in larger tissue-level injuries, conveying information about the distance to the injury site and its geometry. Thus, we identified specific features of extracellular ATP and ADP spatiotemporal signals that depend on tissue mechanoresilience and encode the severity, scope, and proximity of the mechanical stimulus.
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Affiliation(s)
- Nicholas Mikolajewicz
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; Shriners Hospital for Children-Canada, Montreal, Quebec, Canada
| | | | - Paul W Wiseman
- Department of Physics, Montreal, Quebec, Canada; Department of Chemistry, McGill University, Montreal, Quebec, Canada
| | - Svetlana V Komarova
- Faculty of Dentistry, McGill University, Montreal, Quebec, Canada; Shriners Hospital for Children-Canada, Montreal, Quebec, Canada.
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Gao J, Xin W, Huang J, Ji B, Gao S, Chen L, Kang L, Yang H, Shen X, Zhao B, Wang J. Research articleHemolysis in human erythrocytes by Clostridium perfringens epsilon toxin requires activation of P2 receptors. Virulence 2019; 9:1601-1614. [PMID: 30277122 PMCID: PMC6276848 DOI: 10.1080/21505594.2018.1528842] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
Epsilon-toxin (ETX) is produced by types B and D strains of Clostridium perfringens, which cause fatal enterotoxaemia in sheep, goats and cattle. Previous studies showed that only a restricted number of cell lines are sensitive to ETX and ETX-induced hemolysis has not previously been reported. In this study, the hemolytic ability of ETX was examined using erythrocytes from 10 species including murine, rabbit, sheep, monkey and human. We found that ETX caused hemolysis in human erythrocytes (HC50 = 0.2 μM) but not erythrocytes from the other test species. Moreover, the mechanism of ETX-induced hemolysis was further explored. Recent studies showed that some bacterial toxins induce hemolysis through purinergic receptor (P2) activation. Hence, the function of purinergic receptors in ETX-induced hemolysis was tested, and we found that the non-selective P2 receptor antagonists PPADS inhibited ETX-induced lysis of human erythrocytes in a concentration-dependent manner, indicating that ETX-induced hemolysis requires activation of purinergic receptors. P2 receptors comprise seven P2X (P2X1-7) and eight P2Y (P2Y1, P2Y2, P2Y4, P2Y6, and P2Y11-P2Y14) receptor subtypes. The pattern of responsiveness to more selective P2-antagonists implies that both P2Y13 and P2X7 receptors are involved in ETX-induced hemolysis in human species. Furthermore, we demonstrated that extracellular ATP is likely not involved in ETX-induced hemolysis and the activation of P2 receptors. These findings clarified the mechanism of ETX-induced hemolysis and provided new insight into the activities and ETX mode of action.
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Affiliation(s)
- Jie Gao
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China.,b College of Life Sciences , Hebei Normal University , Shijiazhuang , China
| | - Wenwen Xin
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Jing Huang
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China.,b College of Life Sciences , Hebei Normal University , Shijiazhuang , China
| | - Bin Ji
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Shan Gao
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Liang Chen
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Lin Kang
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Hao Yang
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Xin Shen
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
| | - Baohua Zhao
- b College of Life Sciences , Hebei Normal University , Shijiazhuang , China
| | - Jinglin Wang
- a State Key Laboratory of Pathogen and Biosecurity , Institute of Microbiology and Epidemiology, AMMS , Beijing , China
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Grygorczyk R, Boudreault F, Tan JJ, Ponomarchuk O, Sokabe M, Furuya K. Mechanosensitive ATP release in the lungs: New insights from real-time luminescence imaging studies. CURRENT TOPICS IN MEMBRANES 2019; 83:45-76. [PMID: 31196610 DOI: 10.1016/bs.ctm.2019.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Extracellular ATP and other nucleotides are important autocrine/paracrine mediators that stimulate purinergic receptors and regulate diverse processes in the normal lungs. They are also associated with pathogenesis of a number of respiratory diseases and clinical complications including acute respiratory distress syndrome and ventilator induced lung injury. Mechanical forces are major stimuli for cellular ATP release but precise mechanisms responsible for this release are still debated. The present review intends to provide the current state of knowledge of the mechanisms of ATP release in the lung. Putative pathways of the release, including the contribution of cell membrane injury and cell lysis are discussed addressing their strength, weaknesses and missing evidence that requires future study. We also provide an overview of the recent technical advances in studying cellular ATP release in vitro and ex vivo. Special attention is given to new insights into lung ATP release obtained with the real-time luminescence ATP imaging. This includes recent data on stretch-induced mechanosensitive ATP release in a model and primary cells of lung alveoli in vitro as well as inflation-induced ATP release in airspaces and pulmonary blood vessels of lungs, ex vivo.
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Affiliation(s)
- Ryszard Grygorczyk
- Department of Medicine, Université de Montréal, Montréal, QC, Canada; Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada.
| | - Francis Boudreault
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Ju Jing Tan
- Department of Medicine, Université de Montréal, Montréal, QC, Canada; Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada
| | - Olga Ponomarchuk
- Centre de recherche, Centre hospitalier de l'Université de Montréal (CRCHUM), Montréal, QC, Canada; Faculty of Biology, M.V. Lomonosov Moscow State University, Moscow, Russia
| | - Masahiro Sokabe
- Mechanobiology Laboratory, Nagoya University, Graduate School of Medicine, Nagoya, Japan
| | - Kishio Furuya
- Mechanobiology Laboratory, Nagoya University, Graduate School of Medicine, Nagoya, Japan
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Kosmachevskaya OV, Topunov AF. Alternate and Additional Functions of Erythrocyte Hemoglobin. BIOCHEMISTRY (MOSCOW) 2019; 83:1575-1593. [PMID: 30878032 DOI: 10.1134/s0006297918120155] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The review discusses pleiotropic effects of erythrocytic hemoglobin (Hb) and their significance for human health. Hemoglobin is mostly known as an oxygen carrier, but its biochemical functions are not limited to this. The following aspects of Hb functioning are examined: (i) catalytic functions of the heme component (nitrite reductase, NO dioxygenase, monooxygenase, alkylhydroperoxidase) and of the apoprotein (esterase, lipoxygenase); (ii) participation in nitric oxide metabolism; (iii) formation of membrane-bound Hb and its role in the regulation of erythrocyte metabolism; (iv) physiological functions of Hb catabolic products (iron, CO, bilirubin, peptides). Special attention is given to Hb participation in signal transduction in erythrocytes. The relationships between various erythrocyte metabolic parameters, such as oxygen status, ATP formation, pH regulation, redox balance, and state of the cytoskeleton are discussed with regard to Hb. Hb polyfunctionality can be considered as a manifestation of the principle of biochemical economy.
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Affiliation(s)
- O V Kosmachevskaya
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia
| | - A F Topunov
- Bach Institute of Biochemistry, Research Center of Biotechnology, Russian Academy of Sciences, Moscow, 119071, Russia.
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Groen MB, Knudsen TA, Finsen SH, Pedersen BK, Hellsten Y, Mortensen SP. Reduced skeletal-muscle perfusion and impaired ATP release during hypoxia and exercise in individuals with type 2 diabetes. Diabetologia 2019; 62:485-493. [PMID: 30607464 DOI: 10.1007/s00125-018-4790-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Accepted: 11/08/2018] [Indexed: 12/13/2022]
Abstract
AIMS/HYPOTHESIS Plasma ATP is a potent vasodilator and is thought to play a role in the local regulation of blood flow. Type 2 diabetes is associated with reduced tissue perfusion. We aimed to examine whether individuals with type 2 diabetes have reduced plasma ATP concentrations compared with healthy control participants (case-control design). METHODS We measured femoral arterial and venous plasma ATP levels with the intravascular microdialysis technique during normoxia, hypoxia and one-legged knee-extensor exercise (10 W and 30 W) in nine participants with type 2 diabetes and eight control participants. In addition, we infused acetylcholine (ACh), sodium nitroprusside (SNP) and ATP into the femoral artery to assess vascular function and ATP signalling. RESULTS Individuals with type 2 diabetes had a lower leg blood flow (LBF; 2.9 ± 0.1 l/min) compared with the control participants (3.2 ± 0.1 l/min) during exercise (p < 0.05), in parallel with lower venous plasma ATP concentration (205 ± 35 vs 431 ± 72 nmol/l; p < 0.05). During systemic hypoxia, LBF increased from 0.35 ± 0.04 to 0.54 ± 0.06 l/min in control individuals, whereas it did not increase (0.25 ± 0.04 vs 0.31 ± 0.03 l/min) in the those with type 2 diabetes and was lower than in the control individuals (p < 0.05). Hypoxia increased venous plasma ATP levels in both groups (p < 0.05), but the increase was higher in control individuals (90 ± 26 nmol/l) compared to those with type 2 diabetes (18 ± 5 nmol/l). LBF and vascular conductance were lower during ATP (0.15 and 0.4 μmol min-1 [kg leg mass]-1) and ACh (100 μg min-1 [kg leg mass]-1) infusion in individuals with type 2 diabetes compared with the control participants (p < 0.05), whereas there was no difference during SNP infusion. CONCLUSIONS/INTERPRETATION These findings demonstrate that individuals with type 2 diabetes have lower plasma ATP concentrations during exercise and hypoxia compared with control individuals, and this occurs in parallel with lower blood flow. Moreover, individuals with type 2 diabetes have a reduced vasodilatory response to infused ATP. These impairments in the ATP system are both likely to contribute to the reduced tissue perfusion associated with type 2 diabetes. TRIAL REGISTRATION ClinicalTrials.gov NCT02001766.
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Affiliation(s)
- Martin B Groen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Winslowparken 21 3, 5000, Odense, Denmark
| | - Trine A Knudsen
- Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Stine H Finsen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Winslowparken 21 3, 5000, Odense, Denmark
| | - Bente K Pedersen
- Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark
| | - Ylva Hellsten
- Department of Nutrition, Exercise and Sports, University of Copenhagen, Copenhagen, Denmark
| | - Stefan P Mortensen
- Department of Cardiovascular and Renal Research, Institute of Molecular Medicine, University of Southern Denmark, Winslowparken 21 3, 5000, Odense, Denmark.
- Centre of Inflammation and Metabolism and the Centre for Physical Activity Research, University of Copenhagen, Rigshospitalet, Copenhagen, Denmark.
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Mendes MTDM, Jacinto AKDL, Kusahara DM, Peterlini MAS, Pedreira MDLG, Avelar AFM. Marcadores de hemólise em concentrado de hemácias administrados por cateter central de inserção periférica não valvulado*. ACTA PAUL ENFERM 2019. [DOI: 10.1590/1982-0194201900020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Resumo Objetivo: Identificar as variações nos níveis de marcadores de hemólise em CH administrados por CCIP segundo o calibre do cateter. Método: Estudo experimental realizado em laboratório com condições de temperatura e umidade controladas. A amostra teve 36 alíquotas de sangue de 10 bolsas de hemácias com tipo de sangue A+; infusão de gravidade foi utilizada em seis CCIP de 3Fr (French) e seis de 4Fr, totalizando 12 experimentos divididos em três tempos: basal, fluxo livre e fluxo controlado. Analisou-se grau de hemólise, valores totais e livres de hemoglobina, desidrogenase láctica e potássio. Resultados: Houve aumento da média de hemoglobina livre (p=0,01) e grau de hemólise (p=0,01) após infusão de fluxo livre, com média de elevação de 0,04 de potássio (p<0,01) e redução de hemoglobina total (p=0,01) em fluxo controlado. O concentrado de hemácias aplicadas em 4Fr CCIP teve média de elevação de grau de fluxo. O CCIP de 3Fr teve aumento médio significante em grau de hemólise (p=0,03) e hemoglobina livre (p=0,01) após controle do fluxo. Conclusão: O CCIP de 4Fr foram associados a maiores mudanças nos marcadores de hemólise. Maior dimensão do calibre pode proporcionar fluxo turbulento, contribuindo para um maior choque entre as hemácias.
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Leal Denis MF, Lefevre SD, Alvarez CL, Lauri N, Enrique N, Rinaldi DE, Gonzalez-Lebrero R, Vecchio LE, Espelt MV, Stringa P, Muñoz-Garay C, Milesi V, Ostuni MA, Herlax V, Schwarzbaum PJ. Regulation of extracellular ATP of human erythrocytes treated with α-hemolysin. Effects of cell volume, morphology, rheology and hemolysis. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2019; 1866:896-915. [PMID: 30726708 DOI: 10.1016/j.bbamcr.2019.01.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/02/2018] [Revised: 01/10/2019] [Accepted: 01/30/2019] [Indexed: 12/17/2022]
Abstract
Alpha-hemolysin (HlyA) of uropathogenic strains of Escherichia coli irreversibly binds to human erythrocytes (RBCs) and triggers activation of ATP release and metabolic changes ultimately leading to hemolysis. We studied the regulation of extracellular ATP (ATPe) of RBCs exposed to HlyA. Luminometry was used to assess ATP release and ATPe hydrolysis, whereas changes in cell volume and morphology were determined by electrical impedance, ektacytometry and aggregometry. Exposure of RBCs to HlyA induced a strong increase of [ATPe] (3-36-fold) and hemolysis (1-44-fold), partially compensated by [ATPe] hydrolysis by ectoATPases and intracellular ATPases released by dead cells. Carbenoxolone, a pannexin 1 inhibitor, partially inhibited ATP release (43-67%). The un-acylated toxin ProHlyA and the deletion analog HlyA∆914-936 were unable to induce ATP release or hemolysis. For HlyA treated RBCs, a data driven mathematical model showed that simultaneous lytic and non-lytic release mainly governed ATPe kinetics, while ATPe hydrolysis became important after prolonged toxin exposure. HlyA induced a 1.5-fold swelling, while blocking this swelling reduced ATP release by 77%. Blocking ATPe activation of purinergic P2X receptors reduced swelling by 60-80%. HlyA-RBCs showed an acute 1.3-2.2-fold increase of Ca2+i, increased crenation and externalization of phosphatidylserine. Perfusion of HlyA-RBCs through adhesion platforms showed strong adhesion to activated HMEC cells, followed by rapid detachment. HlyA exposed RBCs exhibited increased sphericity under osmotic stress, reduced elongation under shear stress, and very low aggregation in viscous media. Overall results showed that HlyA-RBCs displayed activated ATP release, high but weak adhesivity, low deformability and aggregability and high sphericity.
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Affiliation(s)
- M F Leal Denis
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Analítica, Cátedra de Química Química Analítica y Fisicoquímica, Junín 956 Buenos Aires, Argentina
| | - S D Lefevre
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.; Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France
| | - C L Alvarez
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Departamento de Biodiversidad y Biología Experimental, Intendente Güiraldes 2160 Buenos Aires, Argentina
| | - N Lauri
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Superior, Junín 956 Buenos Aires, Argentina
| | - N Enrique
- Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Calle 47 y 115 La Plata, Argentina.; Universidad Nacional de la Plata, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Calle 47, Casco Urbano, La Plata, Argentina
| | - D E Rinaldi
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Cátedra de Química Biológica, Junín 956 Buenos Aires, Argentina
| | - R Gonzalez-Lebrero
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Cátedra de Química Biológica, Junín 956 Buenos Aires, Argentina
| | - L E Vecchio
- Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Calle 47 y 115 La Plata, Argentina.; Universidad Nacional de la Plata, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Calle 47, Casco Urbano, La Plata, Argentina
| | - M V Espelt
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Superior, Junín 956 Buenos Aires, Argentina
| | - P Stringa
- Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Calle 47 y 115 La Plata, Argentina.; Universidad Favaloro, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Medicina Traslacional, Trasplante y Bioingeniería (IMETTyB), Av. Entre Ríos 495, Buenos Aires, Argentina.; Universidad Nacional de La Plata, Laboratorio de Trasplante de Órganos y Tejidos, Facultad de Ciencias, Calle 60 y 120, La Plata, Argentina
| | - C Muñoz-Garay
- Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México (UNAM), Av. Universidad s/n, Cuernavaca, Mexico
| | - V Milesi
- Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Estudios Inmunológicos y Fisiopatológicos (IIFP), Facultad de Ciencias Exactas, Calle 47 y 115 La Plata, Argentina.; Universidad Nacional de la Plata, Facultad de Ciencias Exactas, Departamento de Ciencias Biológicas, Cátedra de Fisiología, Calle 47, Casco Urbano, La Plata, Argentina
| | - M A Ostuni
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.; Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France
| | - V Herlax
- Universidad Nacional de La Plata, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Investigaciones Bioquímicas de La Plata (INIBIOLP) "Prof. Dr. Rodolfo R. Brenner", Facultad de Ciencias Médicas, Av. 60 y Av. 120, La Plata, Argentina.; Universidad Nacional de La Plata, Facultad de Ciencias Médicas, Av. 60 y Av. 120, La Plata, Argentina
| | - P J Schwarzbaum
- Universidad de Buenos Aires, Consejo Nacional de Investigaciones Científicas y Técnicas, Instituto de Química y Fisico-Química Biológicas (IQUIFIB) "Prof. Alejandro C. Paladini", Facultad de Farmacia y Bioquímica, Junín 956 Buenos Aires, Argentina.; Universidad de Buenos Aires. Facultad de Farmacia y Bioquímica. Departamento de Química Biológica. Cátedra de Química Biológica Superior, Junín 956 Buenos Aires, Argentina..
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The impact of xanthine oxidase (XO) on hemolytic diseases. Redox Biol 2018; 21:101072. [PMID: 30580157 PMCID: PMC6305892 DOI: 10.1016/j.redox.2018.101072] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 12/04/2018] [Accepted: 12/06/2018] [Indexed: 01/13/2023] Open
Abstract
Hemolytic diseases are associated with elevated levels of circulating free heme that can mediate endothelial dysfunction directly via redox reactions with biomolecules or indirectly by upregulating enzymatic sources of reactive species. A key enzymatic source of these reactive species is the purine catabolizing enzyme, xanthine oxidase (XO) as the oxidation of hypoxanthine to xanthine and subsequent oxidation of xanthine to uric acid generates superoxide (O2•-) and hydrogen peroxide (H2O2). While XO has been studied for over 120 years, much remains unknown regarding specific mechanistic roles for this enzyme in pathologic processes. This gap in knowledge stems from several interrelated issues including: 1) lethality of global XO deletion and the absence of tissue-specific XO knockout models have coalesced to relegate proof-of-principle experimentation to pharmacology; 2) XO is mobile and thus when upregulated locally can be secreted into the circulation and impact distal vascular beds by high-affinity association to the glycocalyx on the endothelium; and 3) endothelial-bound XO is significantly resistant (> 50%) to inhibition by allopurinol, the principle compound used for XO inhibition in the clinic as well as the laboratory. While it is known that circulating XO is elevated in hemolytic diseases including sickle cell, malaria and sepsis, little is understood regarding its role in these pathologies. As such, the aim of this review is to define our current understanding regarding the effect of hemolysis (free heme) on circulating XO levels as well as the subsequent impact of XO-derived oxidants in hemolytic disease processes.
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Marginedas-Freixa I, Alvarez CL, Moras M, Hattab C, Bouyer G, Chene A, Lefevre SD, Le Van Kim C, Bihel F, Schwarzbaum PJ, Ostuni MA. Induction of ATP Release, PPIX Transport, and Cholesterol Uptake by Human Red Blood Cells Using a New Family of TSPO Ligands. Int J Mol Sci 2018; 19:ijms19103098. [PMID: 30308949 PMCID: PMC6213633 DOI: 10.3390/ijms19103098] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/05/2018] [Accepted: 10/07/2018] [Indexed: 02/07/2023] Open
Abstract
Two main isoforms of the Translocator Protein (TSPO) have been identified. TSPO1 is ubiquitous and is mainly present at the outer mitochondrial membrane of most eukaryotic cells, whereas, TSPO2 is specific to the erythroid lineage, located at the plasma membrane, the nucleus, and the endoplasmic reticulum. The design of specific tools is necessary to determine the molecular associations and functions of TSPO, which remain controversial nowadays. We recently demonstrated that TSPO2 is involved in a supramolecular complex of the erythrocyte membrane, where micromolar doses of the classical TSPO ligands induce ATP release and zinc protoporphyrin (ZnPPIX) transport. In this work, three newly-designed ligands (NCS1016, NCS1018, and NCS1026) were assessed for their ability to modulate the functions of various erythrocyte's and compare them to the TSPO classical ligands. The three new ligands were effective in reducing intraerythrocytic Plasmodium growth, without compromising erythrocyte survival. While NCS1016 and NCS1018 were the most effective ligands in delaying sorbitol-induced hemolysis, NCS1016 induced the highest uptake of ZnPPIX and NCS1026 was the only ligand inhibiting the cholesterol uptake. Differential effects of ligands are probably due, not only, to ligand features, but also to the dynamic interaction of TSPO with various partners at the cell membrane. Further studies are necessary to fully understand the mechanisms of the TSPO's complex activation.
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Affiliation(s)
- Irene Marginedas-Freixa
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Cora L Alvarez
- Instituto de Química y Fisico-Química Biológicas "Prof. Alejandro C. Paladini", UBA, CONICET, Facultad de Farmacia y Bioquímica, Junín 956, C1113AAD Buenos Aires, Argentina.
- Departamento de Biodiversidad y Biología Experimental, Facultad Ciencias Exactas y Naturales, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina.
| | - Martina Moras
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Claude Hattab
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Guillaume Bouyer
- UMR 8227 LBI2M, Comparative Erythrocyte's Physiology, CNRS, Sorbonne Université, Laboratoire d'Excellence GR-Ex, F-29680 Roscoff, France.
| | - Arnaud Chene
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Sophie D Lefevre
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Caroline Le Van Kim
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
| | - Frederic Bihel
- UMR7200, Laboratoire d'Innovation Thérapeutique, Faculty of Pharmacy, University of Strasbourg, CNRS, F-67400 Illkirch Graffenstaden, France.
| | - Pablo J Schwarzbaum
- Instituto de Química y Fisico-Química Biológicas "Prof. Alejandro C. Paladini", UBA, CONICET, Facultad de Farmacia y Bioquímica, Junín 956, C1113AAD Buenos Aires, Argentina.
- Departamento de Química Biológica, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, C1113AAD Buenos Aires, Argentina.
| | - Mariano A Ostuni
- UMR-S1134, Integrated Biology of Red Blood Cells, INSERM, Université Paris Diderot, Sorbonne Paris Cité, Université de la Réunion, Université des Antilles, F-75015 Paris, France.
- Institut National de la Transfusion Sanguine, Laboratoire d'Excellence GR-Ex, F-75015 Paris, France.
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