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Kim EH, Baek SM, Choi S, Cho J, Tahmasebi S, Bae ON. Promoted coagulant activity and disrupted blood-brain barrier depending on phosphatidylserine externalization of red blood cells exposed to ZnO nanoparticles. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 362:124921. [PMID: 39265764 DOI: 10.1016/j.envpol.2024.124921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2024] [Revised: 09/05/2024] [Accepted: 09/07/2024] [Indexed: 09/14/2024]
Abstract
Zinc oxide nanoparticles (ZnO-NPs) are nanomaterials mainly produced and used worldwide. They translocate to circulatory systems from various exposure routes. While blood and endothelial cells are persistently exposed to circulating ZnO-NPs, the potential risks posed by ZnO-NPs to the cardiovascular system are largely unknown. Our study identified the potential risk of thrombosis and disturbance of the blood-brain barrier (BBB) by coagulant activity on red blood cells (RBCs) caused by ZnO-NPs. ZnO-NPs promoted the externalization of phosphatidylserine and the generation of microvesicles through an imbalance of intracellular mechanisms regulating procoagulant activity in human RBCs. The coagulation cascade leading to thrombin generation was promoted in ZnO-NPs-treated human RBCs. Combined with human RBCs, ZnO-NPs caused coagulant activity on isolated rat RBCs and rat venous thrombosis models. We identified the erythrophagocytosis of RBCs into brain endothelial cells via increased PS exposure induced by ZnO-NPs. Excessive erythrophagocytosis contributes to disrupting the BBB function of endothelial cells. ZnO-NPs increased the procoagulant activity of RBCs, causing venous thrombosis. Excessive erythrophagocytosis through ZnO-NPs-treated RBCs resulted in the dysfunction of BBB. Our study will help elucidate the potential risk ZnO-NPs exert on the cardiovascular system.
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Affiliation(s)
- Eun-Hye Kim
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea; Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Seung Mi Baek
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Sungbin Choi
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Junho Cho
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Soroush Tahmasebi
- Department of Pharmacology and Regenerative Medicine, University of Illinois College of Medicine, Chicago, IL, USA
| | - Ok-Nam Bae
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea.
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2
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Petkova-Kirova P, Murciano N, Iacono G, Jansen J, Simionato G, Qiao M, Van der Zwaan C, Rotordam MG, John T, Hertz L, Hoogendijk AJ, Becker N, Wagner C, Von Lindern M, Egee S, Van den Akker E, Kaestner L. The Gárdos Channel and Piezo1 Revisited: Comparison between Reticulocytes and Mature Red Blood Cells. Int J Mol Sci 2024; 25:1416. [PMID: 38338693 PMCID: PMC10855361 DOI: 10.3390/ijms25031416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 02/12/2024] Open
Abstract
The Gárdos channel (KCNN4) and Piezo1 are the best-known ion channels in the red blood cell (RBC) membrane. Nevertheless, the quantitative electrophysiological behavior of RBCs and its heterogeneity are still not completely understood. Here, we use state-of-the-art biochemical methods to probe for the abundance of the channels in RBCs. Furthermore, we utilize automated patch clamp, based on planar chips, to compare the activity of the two channels in reticulocytes and mature RBCs. In addition to this characterization, we performed membrane potential measurements to demonstrate the effect of channel activity and interplay on the RBC properties. Both the Gárdos channel and Piezo1, albeit their average copy number of activatable channels per cell is in the single-digit range, can be detected through transcriptome analysis of reticulocytes. Proteomics analysis of reticulocytes and mature RBCs could only detect Piezo1 but not the Gárdos channel. Furthermore, they can be reliably measured in the whole-cell configuration of the patch clamp method. While for the Gárdos channel, the activity in terms of ion currents is higher in reticulocytes compared to mature RBCs, for Piezo1, the tendency is the opposite. While the interplay between Piezo1 and Gárdos channel cannot be followed using the patch clamp measurements, it could be proved based on membrane potential measurements in populations of intact RBCs. We discuss the Gárdos channel and Piezo1 abundance, interdependencies and interactions in the context of their proposed physiological and pathophysiological functions, which are the passing of small constrictions, e.g., in the spleen, and their active participation in blood clot formation and thrombosis.
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Affiliation(s)
- Polina Petkova-Kirova
- Institute of Neurobiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria;
- Department of Biochemistry, Saarland University, 66123 Saarbrücken, Germany
| | - Nicoletta Murciano
- Nanion Technologies, 80339 Munich, Germany; (N.M.); (M.G.R.); (N.B.)
- Theoretical Medicine and Biosciences, Campus University Hospital, Saarland University, 66421 Homburg, Germany; (J.J.); (M.Q.); (L.H.)
| | - Giulia Iacono
- Department of Hematopoiesis, Sanquin Research, 1066 CX Amsterdam, The Netherlands; (G.I.); (C.V.d.Z.); (A.J.H.); (M.V.L.); (E.V.d.A.)
- Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands
| | - Julia Jansen
- Theoretical Medicine and Biosciences, Campus University Hospital, Saarland University, 66421 Homburg, Germany; (J.J.); (M.Q.); (L.H.)
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
| | - Greta Simionato
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
- Department of Experimental Surgery, Campus University Hospital, Saarland University, 66421 Homburg, Germany
| | - Min Qiao
- Theoretical Medicine and Biosciences, Campus University Hospital, Saarland University, 66421 Homburg, Germany; (J.J.); (M.Q.); (L.H.)
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
| | - Carmen Van der Zwaan
- Department of Hematopoiesis, Sanquin Research, 1066 CX Amsterdam, The Netherlands; (G.I.); (C.V.d.Z.); (A.J.H.); (M.V.L.); (E.V.d.A.)
- Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands
| | | | - Thomas John
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
| | - Laura Hertz
- Theoretical Medicine and Biosciences, Campus University Hospital, Saarland University, 66421 Homburg, Germany; (J.J.); (M.Q.); (L.H.)
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
| | - Arjan J. Hoogendijk
- Department of Hematopoiesis, Sanquin Research, 1066 CX Amsterdam, The Netherlands; (G.I.); (C.V.d.Z.); (A.J.H.); (M.V.L.); (E.V.d.A.)
- Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands
| | - Nadine Becker
- Nanion Technologies, 80339 Munich, Germany; (N.M.); (M.G.R.); (N.B.)
| | - Christian Wagner
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
- Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg, Luxembourg
| | - Marieke Von Lindern
- Department of Hematopoiesis, Sanquin Research, 1066 CX Amsterdam, The Netherlands; (G.I.); (C.V.d.Z.); (A.J.H.); (M.V.L.); (E.V.d.A.)
- Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands
| | - Stephane Egee
- Biological Station Roscoff, Sorbonne University, CNRS, UMR8227 LBI2M, F-29680 Roscoff, France;
- Laboratory of Excellence GR-Ex, F-75015 Paris, France
| | - Emile Van den Akker
- Department of Hematopoiesis, Sanquin Research, 1066 CX Amsterdam, The Netherlands; (G.I.); (C.V.d.Z.); (A.J.H.); (M.V.L.); (E.V.d.A.)
- Landsteiner Laboratory, Amsterdam UMC, University of Amsterdam, 1007 MB Amsterdam, The Netherlands
| | - Lars Kaestner
- Theoretical Medicine and Biosciences, Campus University Hospital, Saarland University, 66421 Homburg, Germany; (J.J.); (M.Q.); (L.H.)
- Department of Experimental Physics, Saarland University, 66123 Saarbrücken, Germany (T.J.); (C.W.)
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3
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Liu J, Mamun Bhuyan AA, Ma K, Zhu X, Zhou K, Lang F. Myricetin-induced suicidal erythrocyte death. Mol Biol Rep 2023; 50:4253-4260. [PMID: 36905403 DOI: 10.1007/s11033-023-08350-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 02/21/2023] [Indexed: 03/12/2023]
Abstract
BACKGROUND Myricetin, a type of flavonol commonly found in fruits and herbs, has demonstrated anticancer properties by triggering the process of apoptosis or programmed cell death in tumor cells. Despite the absence of mitochondria and nuclei, erythrocytes can undergo programmed cell death, also known as eryptosis.This process is characterized by cell shrinkage, externalization of phosphatidylserine (PS) on the cell membrane, and the formation of membrane blebs. The signaling of eryptosis involves Ca2+ influx, the formation of reactive oxygen species (ROS), and the accumulation of cell surface ceramide. The present study explored the effects of myricetin on eryptosis. METHODS AND RESULTS Human erythrocytes were exposed to various concentrations of myricetin (2-8 µM) for 24 h. Flow cytometry was used to assess the markers of eryptosis, including PS exposure, cellular volume, cytosolic Ca2+ concentration, and ceramide accumulation. In addition, the levels of intracellular ROS were measured using the 2',7'-dichlorofluorescin diacetate (DCFDA) assay. The myricetin-treated (8 µM) erythrocytes significantly increased Annexin-positive cells, Fluo-3 fluorescence intensity, DCF fluorescence intensity, and the accumulation of ceramide. The impact of myricetin on the binding of annexin-V was significantly reduced, but not completely eliminated, by the nominal removal of extracellular Ca2+. CONCLUSION Myricetin triggers eryptosis, which is accompanied and, at least in part, caused by Ca2+ influx, oxidative stress and increase of ceramide abundance.
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Affiliation(s)
- Jibin Liu
- College of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, 1166 Liutai Avenue, Wenjiang, Chengdu, 611137, People's Republic of China.,Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany
| | - Abdulla Al Mamun Bhuyan
- Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany.,Department of Veterinary and Animal Sciences, University of Rajshahi, Rajshahi, 6250, Bangladesh
| | - Ke Ma
- Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany
| | - Xuexue Zhu
- Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany
| | - Kuo Zhou
- Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany
| | - Florian Lang
- Department of Physiology, Eberhard-Karls-University of Tuebingen, Wilhlmstr. 56, 72076, Tuebingen, Germany.
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4
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Ye F, Zhang B, Qiu L, Zhang Y, Zhang Y, Zhang J, Zhao Q, Lu L, Zhang Z. In vivo real-time red blood cell migration and microcirculation flow synergy imaging-surveyed thrombolytic therapy with iron-oxide complexes. Mater Today Bio 2022; 16:100408. [PMID: 36097598 PMCID: PMC9463387 DOI: 10.1016/j.mtbio.2022.100408] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/16/2022] [Accepted: 08/18/2022] [Indexed: 11/29/2022] Open
Abstract
Nanotherapeutics as a nascent method has attracted widely interest on the treatment of thrombosis. However, due to the limited temporal and spatial resolution of conventional imaging modalities, the dynamic visualization the thrombogenesis and evaluation of the effect of thrombolytic drugs are facing severely difficulties in vivo. In addition, the development of high targeting, short circulation time, and small size thrombolysis nanotherapeutics agents requires further research. Herein, we report a synergy imaging modality that combining a label-free capillary microscopy and laser speckle microcirculation imaging, which realized dynamic visualization of single red blood cell migration and large-field dynamic blood flow. In this work, we investigated the red blood cells migration and blood flow velocity response before and after treated through introducing a functional nano-thrombolytics, iron-oxide complexes coated urokinase (IPN@UK) on an orthotopic animal model in vivo. The functionalized IPN@UK nanocomposites exhibited outstanding thrombolysis effect. Significantly, whole-course changes, including red blood cell activity, complex thrombolytic therapeutics, were well surveilled and evaluated using dual-modality combining imaging strategy. These results show this synergy imaging strategy not only can achieve multiscale non-invasive visualization of dynamic thrombus events in real-time, but also can quantify hemodynamics information of thrombus. Our study demonstrates the potential of this synergy imaging method, which for early detection of thrombus, evaluation of the effect of drug thrombolysis, developing the thrombolytic drugs, and imaging-guide thrombolytic therapy in living systems.
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Affiliation(s)
- Fei Ye
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, 519000, PR China
| | - Bei Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, 361102, PR China
| | - Lige Qiu
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, 519000, PR China
| | - Yunrui Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, 361102, PR China
| | - Yang Zhang
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, 361102, PR China
| | - Jian Zhang
- The Sixth Affiliated Hospital of Guangzhou Medical University, Qingyuan People's Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, PR China
| | - Qingliang Zhao
- State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, Center for Molecular Imaging and Translational Medicine, School of Public Health, Shenzhen Research Institute of Xiamen University, Xiamen University, Xiamen, 361102, PR China
| | - Ligong Lu
- Zhuhai Interventional Medical Center, Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, 519000, PR China
| | - Zhenlin Zhang
- Department of Pharmacy, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Zhuhai, 519000, PR China
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5
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Kim EH, Choi S, Kim D, Park HJ, Bian Y, Choi SH, Chung HY, Bae ON. Amine-modified nanoplastics promote the procoagulant activation of isolated human red blood cells and thrombus formation in rats. Part Fibre Toxicol 2022; 19:60. [PMID: 36104730 PMCID: PMC9472436 DOI: 10.1186/s12989-022-00500-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 08/30/2022] [Indexed: 12/03/2022] Open
Abstract
Background Microplastics (MPs) and nanoplastics (NPs) formed from decomposed plastic are increasing environmental threats. Although MPs and NPs exposed through various routes enter the systemic circulation, the potential toxicity of those is largely unknown. We investigated whether polystyrene NPs (PS-NPs) promote the coagulation activity of red blood cells (RBCs). Results We tested several types of PS-NPs using human RBCs and found that amine-modified 100 nm PS-NPs were the most potent. We measured the uptake of PS-NPs using flow cytometry and confocal microscopy. Electron microscopy revealed morphological changes of RBCs by PS-NPs. PS-NPs induced the externalization of phosphatidylserine, generation of microvesicles in RBCs, and perturbations in the intracellular microenvironment. PS-NPs increased the activity of scramblases responsible for phospholipid translocation in RBCs. PS-NPs modulated the functional interaction to adjacent tissues and coagulation cascade, enhancing RBC adhesion and thrombin generation. Our observations in human RBCs were consistent with those in isolated rat RBCs, showing no inter-species differences. In rat venous thrombosis models, the intravenous administration of PS-NPs enhanced thrombus formation.
Conclusion Amine-modified PS-NPs induce the prothrombotic activation of RBCs causing thrombus formation. We believe that our study will contribute to understanding the potential toxicity of amine-modified polystyrene particles in blood cells and cardiovascular systems. Supplementary Information The online version contains supplementary material available at 10.1186/s12989-022-00500-y.
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6
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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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7
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Abstract
New emerging evidence is now prompting researchers to devote greater focus on the roles played by red blood cells (RBCs) in hemostasis. This short narrative review aims to outline the available research, past and current, that has revealed the role of RBCs in hemostasis, particularly blood clotting. Although early researchers suggested that RBCs were involved in blood clotting, they had insufficient evidence to support such claims. As a result, this area of research received little attention from other scientists. Early researchers primarily used quantitative measures of RBCs, namely hematocrit or RBC count, as higher numbers of RBCs modulate blood rheology by increasing viscosity. Recent research has instead shed light on the different measures of RBC function, such as expression of phosphatidylserine and adhesive proteins, aggregation, hemolysis, release of extracellular microvesicles, and erythrocyte volume. RBCs play a role in the contraction of clots by platelets, and the resulting densely packed array of polyhedral erythrocytes forms an almost impermeable barrier that is essential for hemostasis and wound healing. Renewed interest in RBCs is primarily due to the clinically and experimentally established relationships between erythrocytes and hemostasis, which have suggested that erythrocytes are potential targets for the treatment of hemostatic disturbances.
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Affiliation(s)
- Amin A Alamin
- Department of Pathology, College of Medicine, Taif University, Taif, Saudi Arabia
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8
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Wadud R, Hannemann A, Rees DC, Brewin JN, Gibson JS. Yoda1 and phosphatidylserine exposure in red cells from patients with sickle cell anaemia. Sci Rep 2020; 10:20110. [PMID: 33208899 PMCID: PMC7674503 DOI: 10.1038/s41598-020-76979-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Accepted: 10/01/2020] [Indexed: 01/27/2023] Open
Abstract
Phosphatidylserine (PS) exposure is increased in red cells from sickle cell anaemia (SCA) patients. Externalised PS is prothrombotic and attractive to phagocytes and activated endothelial cells and thus contributes to the anaemic and ischaemic complications of SCA. The mechanism of PS exposure remains uncertain but it can follow increased intracellular Ca2+ concentration ([Ca2+]i). Normally, [Ca2+]i is maintained at very low levels but in sickle cells, Ca2+ permeability is increased, especially following deoxygenation and sickling, mediated by a pathway sometimes called Psickle. The molecular identity of Psickle is also unclear but recent work has implicated the mechanosensitive channel, PIEZO1. We used Yoda1, an PIEZO1 agonist, to investigate its role in sickle cells. Yoda1 caused an increase in [Ca2+]i and PS exposure, which was inhibited by its antagonist Dooku1 and the PIEZO1 inhibitor GsMTx4, consistent with functional PIEZO1. However, PS exposure did not necessitate an increase in [Ca2+]i. Two PKC inhibitors were also tested, chelerytherine chloride and calphostin C. Both reduced PS exposure whilst chelerytherine chloride also reduced Yoda1-induced increases in [Ca2+]i. Findings are therefore consistent with the presence of PIEZO1 in sickle cells, able to mediate Ca2+ entry but that PKC was also involved in both Ca2+ entry and PS exposure.
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Affiliation(s)
- R Wadud
- Department of Veterinary Medicine, Madingley Road, Cambridge, CB3 0ES, UK
| | - A Hannemann
- Department of Veterinary Medicine, Madingley Road, Cambridge, CB3 0ES, UK
| | - D C Rees
- Department of Paediatric Haematology, King's College Hospital, Denmark Hill, London, SE5 5RL, UK
| | - J N Brewin
- Department of Paediatric Haematology, King's College Hospital, Denmark Hill, London, SE5 5RL, UK
| | - J S Gibson
- Department of Veterinary Medicine, Madingley Road, Cambridge, CB3 0ES, UK.
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9
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Bogdanova A, Kaestner L. Early Career Scientists' Guide to the Red Blood Cell - Don't Panic! Front Physiol 2020; 11:588. [PMID: 32903637 PMCID: PMC7438720 DOI: 10.3389/fphys.2020.00588] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 05/11/2020] [Indexed: 12/15/2022] Open
Abstract
Why should we take interest in studying red blood cells? This mini review attempts to answer this question and highlights the problems that authors find most appealing in this dynamic research area. It addresses the early career scientists who are just starting their independent journey and facing tough times. Despite unlimited access to information, the exponential development of computational and intellectual powers, and the seemingly endless possibilities open to talented and ambitious early career researchers, they soon realize that the pressure of imminent competition for financial support is hard. They have to hit deadlines, produce data, publish, report, teach, manage, lead groups, and remain loving family members at the same time. Are these countless hardships worth it? We think they are. Despite centuries of research, red blood cells remain a mysterious and fascinating study objects. These cells bring together experts within the family of the European Red Cell Society and beyond. We all share our joy for the unknown and excitement in understanding how red cells function and what they tell us about the microenvironments and macroenvironments they live in. This review is an invitation to our colleagues to join us on our quest.
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Affiliation(s)
- Anna Bogdanova
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty and the Zurich Center for Integrative Human Physiology (ZIHP), University of Zurich, Zurich, Switzerland
| | - Lars Kaestner
- Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany.,Experimental Physics, Saarland University, Saarbrücken, Germany
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10
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Pulliam KE, Joseph B, Morris MC, Veile RA, Schuster RM, Makley AT, Pritts TA, Goodman MD. Innate coagulability changes with age in stored packed red blood cells. Thromb Res 2020; 195:35-42. [PMID: 32652351 DOI: 10.1016/j.thromres.2020.06.047] [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: 04/29/2020] [Revised: 06/10/2020] [Accepted: 06/28/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Packed red blood cell (pRBC) units administered during resuscitation from hemorrhagic shock are of varied storage ages. We have previously shown that RBC-derived microparticles' impact on thrombogenesis. However, the impact of storage age on pRBC coagulability is unknown. Therefore, we sought to investigate the effect of storage age on innate coagulability and aggregability of stored pRBCs. METHODS pRBCs prepared from male C57BL/6J mice were stored in Additive Solution-3 according to our standardized murine blood banking protocols for 14 days. Rotational thromboelastometry (ROTEM) was used to assess the innate coagulation status of fresh and 14-day old pRBCs. Viscoelastic coagulation parameters of clotting time (CT), clot formation time (CFT), alpha angle, and maximum clot firmness (MCF) were analyzed to determine coagulability. Plasma was added to the fresh pRBCs and 15-day old pRBCs to determine if the storage-associated coagulopathy was reversible with plasma. Statistical analyses were conducted with a Student's t-test. RESULTS Fifteen-day old pRBCs demonstrated a significant reduction in MCF (10.3 vs. 24.4 mm, P-value <0.001) and alpha angle (6.0 vs. 27.2 degrees, P-value <0.001) as well as significant prolongation of CFT and CT (1126.5 vs. 571.4 s, P-value <0.001) compared to fresh pRBCs. FFP addition to 15-day old and fresh pRBCs, demonstrated a significant reduction in MCF and persistent prolongation of CFT. This suggests that pRBCs lost coagulability as they aged and this deficit was not completely corrected by plasma administration. CONCLUSIONS Storage duration may be an important factor in coagulation potential of pRBCs. Transfusion with older pRBCs may contribute to coagulopathy in massively transfused patients.
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Affiliation(s)
- Kasiemobi E Pulliam
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Bernadin Joseph
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Mackenzie C Morris
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Rosalie A Veile
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Rebecca M Schuster
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Amy T Makley
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Timothy A Pritts
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
| | - Michael D Goodman
- Section of General Surgery, Department of Surgery, University of Cincinnati, 231 Albert Sabin Way, Mail Location 0558, Cincinnati, OH 45267-0558, United States of America.
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11
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Bogdanova A, Kaestner L, Simionato G, Wickrema A, Makhro A. Heterogeneity of Red Blood Cells: Causes and Consequences. Front Physiol 2020; 11:392. [PMID: 32457644 PMCID: PMC7221019 DOI: 10.3389/fphys.2020.00392] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 04/02/2020] [Indexed: 12/21/2022] Open
Abstract
Mean values of hematological parameters are currently used in the clinical laboratory settings to characterize red blood cell properties. Those include red blood cell indices, osmotic fragility test, eosin 5-maleimide (EMA) test, and deformability assessment using ektacytometry to name a few. Diagnosis of hereditary red blood cell disorders is complemented by identification of mutations in distinct genes that are recognized "molecular causes of disease." The power of these measurements is clinically well-established. However, the evidence is growing that the available information is not enough to understand the determinants of severity of diseases and heterogeneity in manifestation of pathologies such as hereditary hemolytic anemias. This review focuses on an alternative approach to assess red blood cell properties based on heterogeneity of red blood cells and characterization of fractions of cells with similar properties such as density, hydration, membrane loss, redox state, Ca2+ levels, and morphology. Methodological approaches to detect variance of red blood cell properties will be presented. Causes of red blood cell heterogeneity include cell age, environmental stress as well as shear and metabolic stress, and multiple other factors. Heterogeneity of red blood cell properties is also promoted by pathological conditions that are not limited to the red blood cells disorders, but inflammatory state, metabolic diseases and cancer. Therapeutic interventions such as splenectomy and transfusion as well as drug administration also impact the variance in red blood cell properties. Based on the overview of the studies in this area, the possible applications of heterogeneity in red blood cell properties as prognostic and diagnostic marker commenting on the power and selectivity of such markers are discussed.
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Affiliation(s)
- Anna Bogdanova
- Red Blood Cell Research Group, Vetsuisse Faculty, The Zurich Center for Integrative Human Physiology (ZHIP), Institute of Veterinary Physiology, University of Zurich, Zurich, Switzerland
| | - Lars Kaestner
- Experimental Physics, Dynamics of Fluids, Faculty of Natural Sciences and Technology, Saarland University, Saarbrücken, Germany
- Theoretical Medicine and Biosciences, Medical Faculty, Saarland University, Homburg, Germany
| | - Greta Simionato
- Experimental Physics, Dynamics of Fluids, Faculty of Natural Sciences and Technology, Saarland University, Saarbrücken, Germany
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Amittha Wickrema
- Section of Hematology/Oncology, Department of Medicine, University of Chicago, Chicago, IL, United States
| | - Asya Makhro
- Red Blood Cell Research Group, Vetsuisse Faculty, The Zurich Center for Integrative Human Physiology (ZHIP), Institute of Veterinary Physiology, University of Zurich, Zurich, Switzerland
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12
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Goel R, Josephson CD, Patel EU, Petersen MR, Makhani S, Frank SM, Ness PM, Bloch EM, Gehrie EA, Lokhandwala PM, Nellis MM, Karam O, Shaz BH, Patel RM, Tobian AAR. Perioperative Transfusions and Venous Thromboembolism. Pediatrics 2020; 145:e20192351. [PMID: 32198293 PMCID: PMC7111487 DOI: 10.1542/peds.2019-2351] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 12/03/2019] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND AND OBJECTIVES Annual incidence of venous thromboembolism (VTE) including postoperative VTE in hospitalized children is rising significantly. A growing body of evidence supports the role of red blood cells (RBCs) in pathologic thrombosis. In this study, we examined the association of perioperative RBC transfusion with postoperative VTE in pediatric patients. METHODS The pediatric databases of the American College of Surgeons' National Surgical Quality Improvement Project from 2012 to 2017 were used. Multivariable logistic regression was used to examine the association between perioperative RBC transfusion status and the development of new or progressive VTE within 30 days of surgery. The analyses were age stratified, as follows: neonates (≤28 days), infants (>28 days and <1 year), and children (≥1 year). RESULTS In this study, we included 20 492 neonates, 79 744 infants, and 382 862 children. Postoperative development of VTE was reported in 99 (0.48%) neonates, 147 (0.2%) infants, and 374 (0.1%) children. In all age groups, development of VTE was significantly more common among patients with a perioperative RBC transfusion than patients without a perioperative RBC transfusion (neonates: adjusted odds ratio [aOR] = 4.1, 95% confidence interval [CI] = 2.5-6.7; infants: aOR = 2.4, 95% CI = 1.7-3.6; children: aOR = 2.2, 95% CI = 1.7-2.9). Among children who received an intra- or postoperative transfusion, the weight-based volume of RBCs (mL/kg) transfused was associated with postoperative VTE in a dose-dependent manner: second tertile (odds ratio = 2.3, 95% CI = 1.3-4.1) and third tertile (odds ratio = 4.1, 95% CI = 2.3-7.4) versus first tertile. CONCLUSIONS Perioperative RBC transfusions are independently associated with development of new or progressive postoperative VTE in children, infants, and neonates. These findings need further validation in prospective studies and emphasize the need for evidence-based perioperative pediatric blood transfusion decisions.
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Affiliation(s)
- Ruchika Goel
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
- Departments of Internal Medicine and Pediatrics, School of Medicine, Southern Illinois University and Mississippi Valley Regional Blood Center, Springfield, Illinois
| | - Cassandra D Josephson
- Department of Pathology, School of Medicine, Emory University and
- Department of Pediatrics, Children's Healthcare of Atlanta and School of Medicine, Emory University, Atlanta, Georgia
| | - Eshan U Patel
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Molly R Petersen
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Sarah Makhani
- Herbert Wertheim College of Medicine, Florida International University, Miami, Florida
| | - Steven M Frank
- Department of Anesthesiology, Johns Hopkins Hospital, Baltimore, Maryland
| | - Paul M Ness
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Evan M Bloch
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Eric A Gehrie
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Parvez M Lokhandwala
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
| | - Marianne M Nellis
- Department of Pediatrics, Weill Cornell Medicine, New York, New York
| | - Oliver Karam
- Department of Pediatrics, Children's Hospital of Richmond at Virginia Commonwealth University, Richmond, Virginia; and
| | | | - Ravi M Patel
- Department of Pediatrics, Children's Healthcare of Atlanta and School of Medicine, Emory University, Atlanta, Georgia
| | - Aaron A R Tobian
- Division of Transfusion Medicine, Department of Pathology, Johns Hopkins University, Baltimore, Maryland
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13
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Long-Term Evaluation of the Outcomes of Subtotal Laparoscopic and Robotic Splenectomy in Hereditary Spherocytosis. World J Surg 2020; 44:2220-2228. [DOI: 10.1007/s00268-020-05485-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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14
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Abstract
Oxygen (O2) delivery, which is fundamental to supporting patients with critical illness, is a function of blood O2 content and flow. This article reviews red blood cell (RBC) physiology and dysfunction relevant to disordered O2 delivery in the critically ill. Flow is the focus of O2 delivery regulation: O2 content is relatively fixed, whereas flow fluctuates greatly. Thus, blood flow volume and distribution vary to maintain coupling between O2 delivery and demand. This article reviews conventional RBC physiology influencing O2 delivery and introduces a paradigm for O2 delivery homeostasis based on coordinated gas transport and vascular signaling by RBCs.
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Affiliation(s)
- Stephen Rogers
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA
| | - Allan Doctor
- Department of Pediatrics, Center for Blood Oxygen Transport and Hemostasis, University of Maryland School of Medicine, HSF III, 8th Floor, 670 West Baltimore Street, Baltimore, MD 21204, USA.
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15
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Jones M, Kujundzic M, John S, Bismarck A. Crab vs. Mushroom: A Review of Crustacean and Fungal Chitin in Wound Treatment. Mar Drugs 2020; 18:E64. [PMID: 31963764 PMCID: PMC7024172 DOI: 10.3390/md18010064] [Citation(s) in RCA: 67] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 01/14/2020] [Accepted: 01/15/2020] [Indexed: 12/13/2022] Open
Abstract
Chitin and its derivative chitosan are popular constituents in wound-treatment technologies due to their nanoscale fibrous morphology and attractive biomedical properties that accelerate healing and reduce scarring. These abundant natural polymers found in arthropod exoskeletons and fungal cell walls affect almost every phase of the healing process, acting as hemostatic and antibacterial agents that also support cell proliferation and attachment. However, key differences exist in the structure, properties, processing, and associated polymers of fungal and arthropod chitin, affecting their respective application to wound treatment. High purity crustacean-derived chitin and chitosan have been widely investigated for wound-treatment applications, with research incorporating chemically modified chitosan derivatives and advanced nanocomposite dressings utilizing biocompatible additives, such as natural polysaccharides, mineral clays, and metal nanoparticles used to achieve excellent mechanical and biomedical properties. Conversely, fungi-derived chitin is covalently decorated with -glucan and has received less research interest despite its mass production potential, simple extraction process, variations in chitin and associated polymer content, and the established healing properties of fungal exopolysaccharides. This review investigates the proven biomedical properties of both fungal- and crustacean-derived chitin and chitosan, their healing mechanisms, and their potential to advance modern wound-treatment methods through further research and practical application.
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Affiliation(s)
- Mitchell Jones
- School of Engineering, RMIT University, Bundoora East Campus, P.O. Box 71, Bundoora VIC 3083, Australia
| | - Marina Kujundzic
- Institute of Material Chemistry and Research, Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
| | - Sabu John
- School of Engineering, RMIT University, Bundoora East Campus, P.O. Box 71, Bundoora VIC 3083, Australia
| | - Alexander Bismarck
- Institute of Material Chemistry and Research, Polymer and Composite Engineering (PaCE) Group, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090 Vienna, Austria
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16
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Kaestner L, Bogdanova A, Egee S. Calcium Channels and Calcium-Regulated Channels in Human Red Blood Cells. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2020; 1131:625-648. [PMID: 31646528 DOI: 10.1007/978-3-030-12457-1_25] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Free Calcium (Ca2+) is an important and universal signalling entity in all cells, red blood cells included. Although mature mammalian red blood cells are believed to not contain organelles as Ca2+ stores such as the endoplasmic reticulum or mitochondria, a 20,000-fold gradient based on a intracellular Ca2+ concentration of approximately 60 nM vs. an extracellular concentration of 1.2 mM makes Ca2+-permeable channels a major signalling tool of red blood cells. However, the internal Ca2+ concentration is tightly controlled, regulated and maintained primarily by the Ca2+ pumps PMCA1 and PMCA4. Within the last two decades it became evident that an increased intracellular Ca2+ is associated with red blood cell clearance in the spleen and promotes red blood cell aggregability and clot formation. In contrast to this rather uncontrolled deadly Ca2+ signals only recently it became evident, that a temporal increase in intracellular Ca2+ can also have positive effects such as the modulation of the red blood cells O2 binding properties or even be vital for brief transient cellular volume adaptation when passing constrictions like small capillaries or slits in the spleen. Here we give an overview of Ca2+ channels and Ca2+-regulated channels in red blood cells, namely the Gárdos channel, the non-selective voltage dependent cation channel, Piezo1, the NMDA receptor, VDAC, TRPC channels, CaV2.1, a Ca2+-inhibited channel novel to red blood cells and i.a. relate these channels to the molecular unknown sickle cell disease conductance Psickle. Particular attention is given to correlation of functional measurements with molecular entities as well as the physiological and pathophysiological function of these channels. This view is in constant progress and in particular the understanding of the interaction of several ion channels in a physiological context just started. This includes on the one hand channelopathies, where a mutation of the ion channel is the direct cause of the disease, like Hereditary Xerocytosis and the Gárdos Channelopathy. On the other hand it applies to red blood cell related diseases where an altered channel activity is a secondary effect like in sickle cell disease or thalassemia. Also these secondary effects should receive medical and pharmacologic attention because they can be crucial when it comes to the life-threatening symptoms of the disease.
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Affiliation(s)
- Lars Kaestner
- Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany. .,Experimental Physics, Saarland University, Saarbrücken, Germany.
| | - Anna Bogdanova
- Red Blood Cell Research Group, Institute of Veterinary Physiology, Vetsuisse Faculty and the Zürich Center for Integrative Human Physiology (ZIHP), University of Zürich, Zürich, Switzerland
| | - Stephane Egee
- CNRS, UMR8227 LBI2M, Sorbonne Université, Roscoff, France.,Laboratoire d'Excellence GR-Ex, Paris, France
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17
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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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18
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van Hezel ME, van Manen L, Boshuizen M, Straat M, De Cuyper IM, Beuger B, Nieuwland R, Tanck MWT, de Korte D, Zwaginga JJ, van Bruggen R, Juffermans NP. The effect of red blood cell transfusion on platelet function in critically ill patients. Thromb Res 2019; 184:115-121. [PMID: 31731068 DOI: 10.1016/j.thromres.2019.10.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Revised: 10/11/2019] [Accepted: 10/31/2019] [Indexed: 01/28/2023]
Abstract
INTRODUCTION Red blood cell (RBC) transfusion is associated with an increased risk of pro-thrombotic events, but the underlying mechanism is poorly understood. We hypothesized that RBC transfusion modulates platelet activity in critically ill patients with and without sepsis. METHODS In a prospective cohort study, 37 critically ill patients receiving a single RBC unit to correct for anemia were sampled prior to and 1 h after transfusion. Platelet exposure of P-selectin, CD63 and binding of PAC-1 as well as formation of platelet-leukocyte complexes were measured by flow cytometry. The ability of plasma from critically ill patients to induce ex vivo platelet aggregation was assessed by flow cytometry after incubation with platelets from a healthy donor. RESULTS RBC transfusion neither triggered the expression of platelet activation markers nor the formation of platelet-leukocyte complexes. Plasma from critically ill patients induced more spontaneous platelet aggregation prior to RBC transfusion compared to healthy controls, which was further augmented following RBC transfusion. Also collagen-induced platelet aggregation was already increased prior to RBC transfusion compared to healthy controls, and this response was unaffected by RBC transfusion. In contrast, ristocetin-induced platelet agglutination was decreased when compared to controls, suggesting impaired vWF-dependent platelet agglutination, even in the presence of high vWF levels. Following RBC transfusion, ristocetin-induced platelet agglutination further decreased. There were no differences between septic and non-septic recipients in all assays. CONCLUSION Ex vivo platelet aggregation is disturbed in the critically ill. Transfusion of a RBC unit may further increase the spontaneous platelet aggregatory response.
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Affiliation(s)
- Maike E van Hezel
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands; Department of Intensive Care Medicine, Amsterdam University Medical Center, location Academic Medical Center, Amsterdam, the Netherlands
| | - Lisa van Manen
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands; Department of Intensive Care Medicine, Amsterdam University Medical Center, location Academic Medical Center, Amsterdam, the Netherlands
| | - Margit Boshuizen
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands; Department of Intensive Care Medicine, Amsterdam University Medical Center, location Academic Medical Center, Amsterdam, the Netherlands
| | - Marleen Straat
- Department of Intensive Care Medicine, Amsterdam University Medical Center, location Academic Medical Center, Amsterdam, the Netherlands
| | - Iris M De Cuyper
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands
| | - Boukje Beuger
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands
| | - Rienk Nieuwland
- Laboratory of Experimental Clinical Chemistry, and Vesicle Observation Centre, Academic Medical Center of the University of Amsterdam, Amsterdam, the Netherlands
| | - Michael W T Tanck
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics (KEBB), Academic Medical Center of the University of Amsterdam, Amsterdam, the Netherlands
| | - Dirk de Korte
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands; Department of Product and Process Development, Sanquin Blood Bank, Amsterdam, the Netherlands
| | - Jaap Jan Zwaginga
- Department of Immunohematology and Bloodtransfusion, Leiden University Medical Center, Leiden, the Netherlands
| | - Robin van Bruggen
- Department of Blood Cell Research, Sanquin Research, Amsterdam, the Netherlands
| | - Nicole P Juffermans
- Department of Intensive Care Medicine, Amsterdam University Medical Center, location Academic Medical Center, Amsterdam, the Netherlands.
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19
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Alshalani A, Li W, Juffermans NP, Seghatchian J, Acker JP. Biological mechanisms implicated in adverse outcomes of sex mismatched transfusions. Transfus Apher Sci 2019; 58:351-356. [DOI: 10.1016/j.transci.2019.04.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Martínez-Vieyra V, Rodríguez-Varela M, García-Rubio D, De la Mora-Mojica B, Méndez-Méndez J, Durán-Álvarez C, Cerecedo D. Alterations to plasma membrane lipid contents affect the biophysical properties of erythrocytes from individuals with hypertension. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2019; 1861:182996. [PMID: 31150634 DOI: 10.1016/j.bbamem.2019.05.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 05/15/2019] [Accepted: 05/23/2019] [Indexed: 12/17/2022]
Abstract
Genetic and environmental factors may contribute to high blood pressure, which is termed essential hypertension. Hypertension is a major independent risk factor for cardiovascular disease, stroke and renal failure; thus, elucidation of the etiopathology of hypertension merits further research. We recently reported that the platelets and neutrophils of patients with hypertension exhibit altered biophysical characteristics. In the present study, we assessed whether the major structural elements of erythrocyte plasma membranes are altered in individuals with hypertension. We compared the phospholipid (phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, sphingosine) and cholesterol contents of erythrocytes from individuals with hypertension (HTN) and healthy individuals (HI) using LC/MS-MS. HTN erythrocytes contained higher phosphatidylcholine, phosphatidylethanolamine and phosphatidylserine contents and a lower cholesterol content than HI erythrocytes. Furthermore, atomic force microscopy revealed important morphological changes in HTN erythrocytes, which reflected the increased membrane fragility and fluidity and higher levels of oxidative stress observed in HTN erythrocytes using spectrophotofluorometry, flow cytometry and spectrometry. This study reveals that alterations to the lipid contents of erythrocyte plasma membranes occur in hypertension, and these alterations in lipid composition result in morphological and physiological abnormalities that modify the dynamic properties of erythrocytes and contribute to the pathophysiology of hypertension.
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Affiliation(s)
- Vette Martínez-Vieyra
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico
| | - Mario Rodríguez-Varela
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Diana García-Rubio
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico
| | | | | | - Carlos Durán-Álvarez
- Instituto de Ciencias Aplicadas y Tecnología, Universidad Nacional Autónoma de México, CDMX, Mexico
| | - Doris Cerecedo
- Laboratorio de Hematobiología, Escuela Nacional de Medicina y Homeopatía, Instituto Politécnico Nacional, CDMX, Mexico.
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21
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Attanzio A, Frazzitta A, Vasto S, Tesoriere L, Pintaudi AM, Livrea MA, Cilla A, Allegra M. Increased eryptosis in smokers is associated with the antioxidant status and C-reactive protein levels. Toxicology 2018; 411:43-48. [PMID: 30385265 DOI: 10.1016/j.tox.2018.10.019] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2018] [Revised: 10/18/2018] [Accepted: 10/26/2018] [Indexed: 01/10/2023]
Abstract
Cigarette smoking has been linked with oxidative stress and inflammation. In turn, eryptosis, the suicidal erythrocyte death similar to apoptosis that can be triggered by oxidative stress, has been associated with chronic inflammatory diseases including atherosclerosis. However, the link between smoking and eryptosis has not been explored so far. The aim of the present study was to determine the level of eryptotic erythrocytes in healthy male smokers (n = 21) compared to non-smokers (n = 21) and assess its relationship with systemic inflammation (CRP) as well as with antioxidant defense (GSH) and their resistance to ex-vivo induced hemolysis. Smoking caused an increase in phosphatidylserine translocation outside the erythrocyte membrane (hallmark of eryptosis), significantly correlated to the plasma level of CRP (r = 0.546) and GSH concentration in erythrocytes (r=-0.475). With respect to non-smokers, smokers show a marginal increase of total leucocytes and erythrocyte volume, no modifications of the RBC resistance to oxidative stress-induced hemolysis and hematological and lipid parameters unvaried. We conclude that the inflammatory status (high CRP levels) and RBC oxidative stress (low GSH levels) caused by cigarette smoking are associated with an increase of eryptotic erythrocytes, a yet unknown relationship potentially involved with atherosclerosis and cardiovascular disease in smokers.
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Affiliation(s)
- Alessandro Attanzio
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Anna Frazzitta
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Sonya Vasto
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Luisa Tesoriere
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Anna Maria Pintaudi
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Maria Antonia Livrea
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
| | - Antonio Cilla
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Avda. Vicente Andrés Estellés s/n, 46100, Burjassot (Valencia), Spain.
| | - Mario Allegra
- Department of Biological, Chemical and Pharmaceutical Sciences and Technologies (STEBICEF), University of Palermo, Via Archirafi 28, 90123, Palermo, Italy
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22
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Venault A, Lai MW, Jhong JF, Yeh CC, Yeh LC, Chang Y. Superior Bioinert Capability of Zwitterionic Poly(4-vinylpyridine propylsulfobetaine) Withstanding Clinical Sterilization for Extended Medical Applications. ACS APPLIED MATERIALS & INTERFACES 2018; 10:17771-17783. [PMID: 29738230 DOI: 10.1021/acsami.8b05466] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The field of bioinert materials is relatively mature, as unique molecular designs for antifouling have been regularly presented over the past 30 years. However, the effect of steam sterilization, a common procedure in hospitals for sterilizing biomedical devices in clinical uses, on the stability of antifouling and hemocompatible biomaterials remains unexplored. The only available set of data indicates that poly(sulfobetaine methacrylate) (SBMA) is unstable and loses its antifouling properties when exposed to hot humid air, depriving it of its attractiveness. Here, we present zwitterionic biomaterial gels of poly(4-vinylpyridine propylsulfobetaine) (4VPPS) and explore their propensity to biofouling before and after a 1 h steam sterilization at 121 °C. After incubation with erythrocytes, leukocytes, thrombocytes, whole blood, or various bacteria ( Escherichia coli, Stenotrophomonas maltophilia), the antifouling properties of unsterilized 4VPPS gels are comparable to those of SBMA gels. Importantly, they are maintained after steam sterilization, unlike those of SBMA gels, which shows that the structure of 4VPPS and the interactions with water remain unaffected by the humid heat treatment. The antifouling properties of gels coated on materials mimicking surfaces used in biomedical devices including stainless steel (surgical knife), silicon (biochips), or titanium (electrocautery pen) are also maintained after similar sterilization. In addition, repeated sterilizations do not affect the antifouling properties of 4VPPS. Therefore, these results provide a substantial advance over the current knowledge on antifouling materials for repeated usage in actual conditions that often involve, in a biomedical environment, steam sterilization.
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Affiliation(s)
- Antoine Venault
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
| | - Min-Wen Lai
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
| | - Jheng-Fong Jhong
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
| | - Chih-Chen Yeh
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
| | - Lu-Chen Yeh
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
| | - Yung Chang
- R&D Center for Membrane Technology and Department of Chemical Engineering , Chung Yuan Christian University , Chungli, Taoyuan 320 , Taiwan
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Lee KH, Cavanaugh L, Leung H, Yan F, Ahmadi Z, Chong BH, Passam F. Quantification of NETs-associated markers by flow cytometry and serum assays in patients with thrombosis and sepsis. Int J Lab Hematol 2018. [PMID: 29520957 DOI: 10.1111/ijlh.12800] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
INTRODUCTION Neutrophil extracellular traps (NETs) are networks of extracellular fibres produced from neutrophil DNA with a pathogenic role in infection, thrombosis and other conditions. Reliable assays for measuring NETs are desirable as novel treatments targeting NETs are being explored for the treatment of these conditions. We compare a whole blood flow cytometry method with serum assays to measure NETs-associated markers in patients with sepsis and thrombosis. METHODS Patients with deep venous thrombosis (n = 25), sepsis (n = 21) and healthy controls (n = 23) were included in the study. Neutrophil surface NETs markers were determined by flow cytometry on whole blood samples by gating of neutrophils stained for surface citrullinated histone (H3cit) and myeloperoxidase (MPO). Serum double-stranded (ds) DNA, MPO, myeloid-related protein, nucleosomes, DNAse, elastase, human high-mobility group box 1 and MPO-DNA complexes were quantified as circulating markers of NETs. RESULTS Neutrophil NETs markers by flow cytometry and serum NETs markers were significantly higher in patients with thrombosis and sepsis compared with healthy controls. Neutrophil NETs markers significantly correlated with the serum marker dsDNA. CONCLUSION Flow cytometry detection of neutrophil NETs markers is feasible in whole blood and correlates with serum markers of NETs. We propose the flow cytometry detection of MPO/H3cit positive neutrophils and serum dsDNA as simple methods to quantify cellular and extracellular NET markers in patients with thrombosis and sepsis.
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Affiliation(s)
- K H Lee
- Department of Haematology, St George Hospital, Kogarah, NSW, Australia.,Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
| | - L Cavanaugh
- Department of Haematology, St George Hospital, Kogarah, NSW, Australia
| | - H Leung
- Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
| | - F Yan
- Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
| | - Z Ahmadi
- Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
| | - B H Chong
- Department of Haematology, St George Hospital, Kogarah, NSW, Australia.,Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
| | - F Passam
- Department of Haematology, St George Hospital, Kogarah, NSW, Australia.,Department of Medicine, St George Clinical School, University of New South Wales, Kogarah, NSW, Australia
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24
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Sun CK, Chen HY, Tseng TF, You B, Wei ML, Lu JY, Chang YL, Tseng WL, Wang TD. High Sensitivity of T-Ray for Thrombus Sensing. Sci Rep 2018; 8:3948. [PMID: 29500384 PMCID: PMC5834502 DOI: 10.1038/s41598-018-22060-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 02/14/2018] [Indexed: 01/21/2023] Open
Abstract
Atherosclerotic plaque rupture or erosion and subsequent development of platelet-containing thrombus formation is the fundamental cause of cardiovascular disease, which is the most common cause of death and disability worldwide. Here we show the high sensitivity of 200-270 GHz T-ray to distinguish thrombus formation at its early stage from uncoagulated blood. A clinical observational study was conducted to longitudinally monitor the T-ray absorption constant of ex-vivo human blood during the thrombus formation from 29 subjects. Compared with the control group (28 subjects) with uncoagulated blood samples, our analysis indicates the high sensitivity of 200-270 GHz T-Ray to detect thrombus with a low p-value < 10-5. Further analysis supports the significant role of platelet-activated thrombotic cascade, which modified the solvation dynamics of blood and occurred during the early coagulation stage, on the measured T-Ray absorption change. The ability to sense the thrombus formation at its early stage would hold promise for timely identification of patients at risk of various atherothrombotic disorders and save billions of lives.
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Affiliation(s)
- Chi-Kuang Sun
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 10617, Taiwan.
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan.
- Graduate Institute of Biomedical Electronics and Bioinformatics, National Taiwan University, Taipei, 10617, Taiwan.
- Research Center for Applied Science and Institute of Physics, Academia Sinica, Taipei, 11529, Taiwan.
| | - Hui-Yuan Chen
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan
| | - Tzu-Fang Tseng
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan
| | - Borwen You
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan
| | - Ming-Liang Wei
- Department of Electrical Engineering and Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei, 10617, Taiwan
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan
| | - Ja-Yu Lu
- Department of Photonics, National Cheng-Kung University, Tainan, 70101, Taiwan
| | - Ya-Lei Chang
- Department of Photonics, National Cheng-Kung University, Tainan, 70101, Taiwan
| | - Wan-Ling Tseng
- Department of Photonics, National Cheng-Kung University, Tainan, 70101, Taiwan
| | - Tzung-Dau Wang
- Molecular Imaging Center, National Taiwan University, Taipei, 10617, Taiwan.
- Cardiovascular Center and Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, 10002, Taiwan.
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25
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Red blood cell distribution width independently predicts 1-month mortality in acute decompensation of cirrhotic patients admitted to emergency department. Eur J Gastroenterol Hepatol 2018; 30:33-38. [PMID: 29064853 DOI: 10.1097/meg.0000000000000993] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
AIM The aim of this study was to explore whether red blood cell distribution width (RDW) can help predict the risk of short-term mortality in patients with acute decompensation of cirrhosis. PATIENTS AND METHODS We carried out a retrospective analysis of all patients consecutively admitted to the emergency department (ED) of the University Hospital of Verona (Italy) for acute decompensation of liver cirrhosis, between 1 June 2013 and 31 December 2016. The RDW value was measured at ED admission, along with collection of clinical features and other laboratory data, and was then correlated with severity of disease (Chronic Liver Failure Consortium Acute Decompensation score; CLIF-C AD score) and 1-month mortality. RESULTS The final study population consisted of 542 patients, 80 (14.8%) of whom died within 30 days after ED admission. The median RDW of patients who died was significantly higher than the median RDW of those who survived (17.4 vs. 15.5%; P<0.001). The percentage of patients who died significantly increased across different RDW quartiles (6.8, 9.7, 11.5 and 32.1%, P<0.001). In univariate analysis, significant correlation was observed between RDW and clinical severity of acute decompensate cirrhosis (Child-Pugh score: r=0.198, P<0.001; Model for End-Stage Liver Disease score: r=0.311, P=0.001; CLIF-C AD: 0.127, P=0.005). The combination of RDW and CLIF-C AD score exhibited better performance for predicting 1-month mortality than the CLIF-C AD score alone (area under the curve=0.769 vs. 0.720; P=0.006). In multivariate analysis, RDW was independently associated with a 1.2-2.3 higher risk of 1-month mortality. CONCLUSION The assessment of RDW at ED admission may improve risk stratification of patients with acute decompensation of cirrhosis.
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26
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Danielczok JG, Terriac E, Hertz L, Petkova-Kirova P, Lautenschläger F, Laschke MW, Kaestner L. Red Blood Cell Passage of Small Capillaries Is Associated with Transient Ca 2+-mediated Adaptations. Front Physiol 2017; 8:979. [PMID: 29259557 PMCID: PMC5723316 DOI: 10.3389/fphys.2017.00979] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/16/2017] [Indexed: 12/15/2022] Open
Abstract
When red blood cells (RBCs) pass constrictions or small capillaries they need to pass apertures falling well below their own cross section size. We used different means of mechanical stimulations (hypoosmotic swelling, local mechanical stimulation, passing through microfluidic constrictions) to observe cellular responses of human RBCs in terms of intracellular Ca2+-signaling by confocal microscopy of Fluo-4 loaded RBCs. We were able to confirm our in vitro results in a mouse dorsal skinfold chamber model showing a transiently increased intracellular Ca2+ when RBCs were passing through small capillaries in vivo. Furthermore, we performed the above-mentioned in vitro experiments as well as measurements of RBCs filterability under various pharmacological manipulations (GsMTx-4, TRAM-34) to explore the molecular mechanism of the Ca2+-signaling. Based on these experiments we conclude that mechanical stimulation of RBCs activates mechano-sensitive channels most likely Piezo1. This channel activity allows Ca2+ to enter the cell, leading to a transient activation of the Gardos-channel associated with K+, Cl-, and water loss, i.e., with a transient volume adaptation facilitating the passage of the RBCs through the constriction.
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Affiliation(s)
- Jens G Danielczok
- Institute for Molecular Cell Biology, Saarland University, Homburg, Germany
| | - Emmanuel Terriac
- Experimental Physics, Saarland University, Saarbrücken, Germany.,Leibniz Institute for New Materials, Saarbrücken, Germany
| | - Laura Hertz
- Institute for Molecular Cell Biology, Saarland University, Homburg, Germany
| | | | - Franziska Lautenschläger
- Experimental Physics, Saarland University, Saarbrücken, Germany.,Leibniz Institute for New Materials, Saarbrücken, Germany
| | - Matthias W Laschke
- Institute for Clinical and Experimental Surgery, Saarland University, Homburg, Germany
| | - Lars Kaestner
- Experimental Physics, Saarland University, Saarbrücken, Germany.,Theoretical Medicine and Biosciences, Saarland University, Homburg, Germany
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27
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Jagadish S, Hemshekhar M, NaveenKumar SK, Sharath Kumar KS, Sundaram MS, Basappa, Girish KS, Rangappa KS. Novel oxolane derivative DMTD mitigates high glucose-induced erythrocyte apoptosis by regulating oxidative stress. Toxicol Appl Pharmacol 2017; 334:167-179. [DOI: 10.1016/j.taap.2017.09.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2017] [Revised: 09/05/2017] [Accepted: 09/09/2017] [Indexed: 01/02/2023]
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28
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Saadah NH, van der Meer PF, Brinkman HJM, de Korte D, Bontekoe IJ, Korsten HH, Middelburg RA, van der Bom JG, Schipperus MR. Effect of solvent/detergent‐treated pooled plasma on fibrinolysis in reconstituted whole blood. Transfusion 2017; 57:2381-2389. [DOI: 10.1111/trf.14260] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 06/02/2017] [Accepted: 06/04/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Nicholas H. Saadah
- Center for Clinical Transfusion ResearchSanquin ResearchLeiden the Netherlands
- Department of Clinical EpidemiologyLeiden University Medical CenterLeiden the Netherlands
| | - Pieter F. van der Meer
- Center for Clinical Transfusion ResearchSanquin ResearchLeiden the Netherlands
- Product and Process DevelopmentSanquin Blood BankAmsterdam the Netherlands
| | | | - Dirk de Korte
- Product and Process DevelopmentSanquin Blood BankAmsterdam the Netherlands
- Department of Blood Cell ResearchSanquin ResearchAmsterdam the Netherlands
| | - Ido J. Bontekoe
- Product and Process DevelopmentSanquin Blood BankAmsterdam the Netherlands
| | - Herbert H. Korsten
- Product and Process DevelopmentSanquin Blood BankAmsterdam the Netherlands
| | - Rutger A. Middelburg
- Center for Clinical Transfusion ResearchSanquin ResearchLeiden the Netherlands
- Department of Clinical EpidemiologyLeiden University Medical CenterLeiden the Netherlands
| | - Johanna G. van der Bom
- Center for Clinical Transfusion ResearchSanquin ResearchLeiden the Netherlands
- Department of Clinical EpidemiologyLeiden University Medical CenterLeiden the Netherlands
| | - Martin R. Schipperus
- Department of HematologyHaga Teaching HospitalThe Hague the Netherlands
- Hemovigilance and Biovigilance OfficeTRIP National Hemovigilance FoundationLeiden the Netherlands
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29
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Jain A, Barrile R, van der Meer AD, Mammoto A, Mammoto T, De Ceunynck K, Aisiku O, Otieno MA, Louden CS, Hamilton GA, Flaumenhaft R, Ingber DE. Primary Human Lung Alveolus-on-a-chip Model of Intravascular Thrombosis for Assessment of Therapeutics. Clin Pharmacol Ther 2017; 103:332-340. [PMID: 28516446 DOI: 10.1002/cpt.742] [Citation(s) in RCA: 203] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 04/26/2017] [Accepted: 05/08/2017] [Indexed: 12/26/2022]
Abstract
Pulmonary thrombosis is a significant cause of patient mortality; however, there are no effective in vitro models of thrombi formation in human lung microvessels that could also assess therapeutics and toxicology of antithrombotic drugs. Here, we show that a microfluidic lung alveolus-on-a-chip lined by human primary alveolar epithelium interfaced with endothelium and cultured under flowing whole blood can be used to perform quantitative analysis of organ-level contributions to inflammation-induced thrombosis. This microfluidic chip recapitulates in vivo responses, including platelet-endothelial dynamics and revealed that lipopolysaccharide (LPS) endotoxin indirectly stimulates intravascular thrombosis by activating the alveolar epithelium, rather than acting directly on endothelium. This model is also used to analyze inhibition of endothelial activation and thrombosis due to a protease activated receptor-1 (PAR-1) antagonist, demonstrating its ability to dissect complex responses and identify antithrombotic therapeutics. Thus, this methodology offers a new approach to study human pathophysiology of pulmonary thrombosis and advance drug development.
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Affiliation(s)
- A Jain
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA.,Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA.,Department of Biomedical Engineering, Dwight Look College of Engineering, Texas A&M University, College Station, Texas, USA
| | - R Barrile
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA.,Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - A D van der Meer
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA.,MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, Enschede, The Netherlands
| | - A Mammoto
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - T Mammoto
- Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - K De Ceunynck
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - O Aisiku
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - M A Otieno
- Janssen Pharmaceutical Research and Development, Pre-Clinical Development and Safety, Spring House, Pennsylvania, USA
| | - C S Louden
- Janssen Pharmaceutical Research and Development, Pre-Clinical Development and Safety, Spring House, Pennsylvania, USA
| | | | - R Flaumenhaft
- Division of Hemostasis and Thrombosis, Department of Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts, USA
| | - D E Ingber
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts, USA.,Vascular Biology Program and Department of Surgery, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts, USA.,Harvard John A. Paulson School of Engineering and Applied Sciences, Cambridge, Massachusetts, USA
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30
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Swanepoel AC, Emmerson O, Pretorius E. Effect of Progesterone and Synthetic Progestins on Whole Blood Clot Formation and Erythrocyte Structure. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2017; 23:607-617. [PMID: 28480839 DOI: 10.1017/s1431927617000484] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Combined oral contraceptive (COC) use is a risk factor for venous thrombosis (VT) and related to the specific type of progestin used. VT is accompanied by inflammation and pathophysiological clot formation, that includes aberrant erythrocytes and fibrin(ogen) interactions. In this paper, we aim to determine the influence of progesterone and different synthetic progestins found in COCs on the viscoelasticity of whole blood clots, as well as erythrocyte morphology and membrane ultrastructure, in an in vitro laboratory study. Thromboelastography (TEG), light microscopy, and scanning electron microscopy were our chosen methods. Our results point out that progestins influence the rate of whole blood clot formation. Alterations to erythrocyte morphology and membrane ultrastructure suggest the presence of eryptosis. We also note increased rouleaux formation, erythrocyte aggregation, and spontaneous fibrin formation in whole blood which may explain the increased risk of VT associated with COC use. Although not all COC users will experience a thrombotic event, individuals with a thrombotic predisposition, due to inflammatory or hematological illness, should be closely monitored to prevent pathological thrombosis.
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31
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Cilla A, Alegría A, Attanzio A, Garcia-Llatas G, Tesoriere L, Livrea MA. Dietary phytochemicals in the protection against oxysterol-induced damage. Chem Phys Lipids 2017; 207:192-205. [PMID: 28267434 DOI: 10.1016/j.chemphyslip.2017.03.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 03/02/2017] [Indexed: 02/06/2023]
Abstract
The intake of fruits and vegetables is associated with reduced incidence of many chronic diseases. These foods contain phytochemicals that often possess antioxidant and free radical scavenging capacity and show anti-inflammatory action, which are also the basis of other bioactivities and health benefits, such as anticancer, anti-aging, and protective action for cardiovascular diseases, diabetes mellitus, obesity and neurodegenerative disorders. Many factors can be included in the etiopathogenesis of all of these multifactorial diseases that involve oxidative stress, inflammation and/or cell death processes, oxysterols, i.e. cholesterol oxidation products (COPs) as well as phytosterol oxidation products (POPs), among others. These oxidized lipids result from either spontaneous and/or enzymatic oxidation of cholesterol/phytosterols on the steroid nucleus or on the side chain and their critical roles in the pathophysiology of the abovementioned diseases has become increasingly evident. In this context, many studies investigated the potential of dietary phytochemicals (polyphenols, carotenoids and vitamins C and E, among others) to protect against oxysterol toxicity in various cell models mimicking pathophysiological conditions. This review, summarizing the mechanisms involved in the chemopreventive effect of phytochemicals against the injury by oxysterols may constitute a step forward to consider the importance of preventive strategies on a nutritional point of view to decrease the burden of many age-related chronic diseases.
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Affiliation(s)
- Antonio Cilla
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Avda. Vicente Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain.
| | - Amparo Alegría
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Avda. Vicente Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Alessandro Attanzio
- Dipartimento Scienze e Technologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy
| | - Guadalupe Garcia-Llatas
- Nutrition and Food Science Area, Faculty of Pharmacy, University of Valencia, Avda. Vicente Andrés Estellés s/n, 46100, Burjassot, Valencia, Spain
| | - Luisa Tesoriere
- Dipartimento Scienze e Technologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy
| | - Maria A Livrea
- Dipartimento Scienze e Technologie Biologiche Chimiche e Farmaceutiche (STEBICEF), Università di Palermo, Palermo, Italy.
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32
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Lee H, Lee K, Lee BK, Priezzhev AV, Shin S. Effect of shear-induced platelet activation on red blood cell aggregation. Clin Hemorheol Microcirc 2017; 66:97-104. [PMID: 28211801 DOI: 10.3233/ch-16191] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Mechanical shear stress is one of the important factors for platelet activation. Although shear stress has been frequently utilized in many applications of diagnostic bio-equipment, there has been little consideration as to whether shear stress induces platelet activation and consequently alters hemorheological characteristics. Therefore, we investigated the effect of shear-induced platelet activation on red blood cell (RBC) aggregation. The hypothesis of the present research is as follows: Platelets activated by high shear stress secrete substances, which can affect hemorheological characteristics to promote RBC aggregation. In our study, an increase in RBC aggregation indices (critical shear stress (CSS) and aggregation index (AI)) by shear-induced platelet activation was observed. Significantly, an increase of 19% in CSS was observed. However, deformability remained unchanged. These phenomena could be a result of the increased cellular adhesion force on RBC membranes due to secreted substances from activated platelets. Therefore, since high shear application results in the unexpected effect on RBC aggregation, conditions for shear application in diagnostic bio-equipment are to be carefully determined.
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Affiliation(s)
- Hoyoon Lee
- School of Mechanical Engineering, Korea University, Seoul, Korea
| | - Kisung Lee
- Department of Experimental Physics, University of Saarland, Saarbrücken, Germany.,Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia
| | - Byoung-Kwon Lee
- Department of Internal Medicine, GangNam Severance Hospital, Yonsei University, Seoul, Korea
| | - Alexander V Priezzhev
- Faculty of Physics, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Physics and International Laser Centre, Lomonosov Moscow State University, Moscow, Russia
| | - Sehyun Shin
- School of Mechanical Engineering, Korea University, Seoul, Korea
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33
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Abed M, Thiel C, Towhid S, Alzoubi K, Honisch S, Lang F, Königsrainer A. Stimulation of Erythrocyte Cell Membrane Scrambling by C-Reactive Protein. Cell Physiol Biochem 2017; 41:806-818. [DOI: 10.1159/000458745] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/25/2017] [Indexed: 12/29/2022] Open
Abstract
Background: Eryptosis, the suicidal erythrocyte death characterized by cell shrinkage and phosphatidylserine-translocation, is triggered by fever and inflammation. Signaling includes increased cytosolic Ca2+-activity ([Ca2+]i), caspase activation, and ceramide. Inflammation is associated with increased plasma concentration of C-reactive protein (CRP). The present study explored whether CRP triggers eryptosis. Methods: Phosphatidylserine abundance at the cell surface was estimated from annexin-V-binding, cell volume from forward scatter, [Ca2+]i from Fluo3-fluorescence, ceramide abundance and caspase-3-activity utilizing FITC-conjugated antibodies. Moreover, blood was drawn from patients with acute appendicitis (9♀,11♂) and healthy volunteers (10♀,10♂) for determination of CRP, blood count and phosphatidylserine. Results: A 48h CRP treatment significantly increased the percentage of annexin-V-binding cells (≥5µg/ml), [Ca2+]i (≥5µg/ml), ceramide (20µg/ml) and caspase-activity (20µg/ml). Annexin-V-binding was significantly blunted by caspase inhibitor zVAD (10µM). The percentage of phosphatidylserine-exposing erythrocytes in freshly drawn blood was significantly higher in appendicitis patients (1.83±0.21%) than healthy volunteers (0.81±0.09%), and significantly higher following a 24h incubation of erythrocytes from healthy volunteers to patient plasma than to plasma from healthy volunteers. The percentage of phosphatidylserine-exposing erythrocytes correlated with CRP plasma concentration. Conclusion: C-reactive protein triggers eryptosis, an effect at least partially due to increase of [Ca2+]i, increase of ceramide abundance and caspase activation.
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34
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Almasry M, Jemaà M, Mischitelli M, Lang F, Faggio C. Camalexin-Induced Cell Membrane Scrambling and Cell Shrinkage in Human Erythrocytes. Cell Physiol Biochem 2017; 41:731-741. [DOI: 10.1159/000458733] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Accepted: 01/28/2017] [Indexed: 12/22/2022] Open
Abstract
Background/Aims: The thaliana phytoalexin Camalexin has been proposed for the treatment of malignancy. Camalexin counteracts tumor growth in part by stimulation of suicidal death or apoptosis of tumor cells. Similar to apoptosis of nucleated cells, erythrocytes may enter suicidal death or eryptosis, which is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Cellular mechanisms contributing to the complex machinery executing eryptosis include increase of cytosolic Ca2+ activity ([Ca2+]i), oxidative stress, ceramide, protein kinase C and caspases. The present study explored, whether Camalexin induces eryptosis and, if so, to shed light on mechanisms involved. Methods: Phosphatidylserine exposure at the cell surface was estimated from annexin-V-binding, cell volume from forward scatter, [Ca2+]i from Fluo-3 fluorescence, ROS formation from DCFDA dependent fluorescence, and ceramide abundance utilizing specific antibodies. Results: A 48 hours exposure of human erythrocytes to Camalexin significantly increased the percentage of annexin-V-binding cells (≥ 10 µg/ml), significantly decreased forward scatter (≥ 5 µg/ml) and significantly increased Fluo-3-fluorescence (≥ 10 µg/ml), but did not significantly modify DCFDA fluorescence or ceramide abundance. The effect of Camalexin on annexin-V-binding was significantly blunted by removal of extracellular Ca2+, by kinase inhibitors staurosporine (1 µM) and chelerythrine (10 µM), as well as by caspase inhibitors zVAD (10 µM) and zIETD-fmk (50 µM). Conclusions: Camalexin triggers cell shrinkage and phospholipid scrambling of the erythrocyte cell membrane, an effect at least in part depending on Ca2+ entry, as well as staurosporine and chelerythrine sensitive kinase(s) as well as zVAD and zIETD-fmk sensitive caspase(s).
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35
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Litvinov RI, Weisel JW. Role of red blood cells in haemostasis and thrombosis. ISBT SCIENCE SERIES 2017; 12:176-183. [PMID: 28458720 PMCID: PMC5404239 DOI: 10.1111/voxs.12331] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
In contrast to an obsolete notion that erythrocytes, or red blood cells (RBCs), play a passive and minor role in hemostasis and thrombosis, over the past decades there has been increasing evidence that RBCs have biologically and clinically important functions in blood clotting and its disorders. This review summarizes the main mechanisms that underlie the involvement of RBCs in hemostasis and thrombosis in vivo, such as rheological effects on blood viscosity and platelet margination, aggregation and deformability of RBCs; direct adhesion and indirect biochemical interactions with endothelial cells and platelets, etc. The ability of stored and pathologically altered RBCs to generate thrombin through exposure of phosphatidylserine has been emphasized. The procoagulant and prothrombotic potential of RBC-derived microparticles transfused with stored RBCs or formed in various pathological conditions associated with hemolysis has been described along with prothrombotic effects of free hemoglobin and heme. Binding of fibrinogen or fibrin to RBCs may influence their effects on fibrin network structure, clot mechanical properties, and fibrinolytic resistance. Recent data on platelet-driven clot contraction show that RBCs compressed by platelets pulling on fibrin form a tightly packed array of polyhedral erythrocytes, or polyhedrocytes, which comprises a nearly impermeable barrier important for hemostasis and wound healing. RBCs may perform dual roles, both helping to stem bleeding but at the same time contributing to thrombosis in a variety of ways.
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Affiliation(s)
- Rustem I Litvinov
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - John W Weisel
- Department of Cell and Developmental Biology, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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Signoretto E, Zierle J, Bhuyan AAM, Castagna M, Lang F. Ceranib-2-induced suicidal erythrocyte death. Cell Biochem Funct 2016; 34:359-66. [PMID: 27291470 DOI: 10.1002/cbf.3196] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 12/30/2022]
Abstract
Ceramide is known to trigger apoptosis of nucleated cells and eryptosis of erythrocytes. Eryptosis is characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Besides ceramide, stimulators of eryptosis include increase of cytosolic Ca(2+) -activity ([Ca(2+) ]i ) and oxidative stress. Ceramide is degraded by acid ceramidase and inhibition of the enzyme similarly triggers apoptosis. The present study explored, whether ceramidase inhibitor Ceranib-2 induces eryptosis. Flow cytometry was employed to quantify phosphatidylserine-exposure at the cell surface from annexin-V-binding, cell volume from forward scatter, [Ca(2+) ]i from Fluo3-fluorescence, reactive oxygen species (ROS) from DCF dependent fluorescence, and ceramide abundance utilizing specific antibodies. Hemolysis was estimated from hemoglobin concentration in the supernatant. A 48 h exposure of human erythrocytes to Ceranib-2 significantly increased the percentage of annexin-V-binding cells (≥50 μM) and the percentage of hemolytic cells (≥10 μM) without significantly modifying forward scatter. Ceranib-2 significantly increased Fluo3-fluorescence, DCF fluorescence and ceramide abundance. The effect of Ceranib-2 on annexin-V-binding was not significantly blunted by removal of extracellular Ca(2+) . Ceranib-2 triggers phospholipid scrambling of the erythrocyte cell membrane, an effect at least in part due to increase of ceramide abundance and induction of oxidative stress, but not dependent on Ca(2+) entry. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Elena Signoretto
- Departments of Physiology and Cardiology & Cardiovascular Medicine, Eberhard-Karls-University of Tuebingen, Tuebingen, Germany.,Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Jens Zierle
- Departments of Physiology and Cardiology & Cardiovascular Medicine, Eberhard-Karls-University of Tuebingen, Tuebingen, Germany
| | - Abdulla Al Mamun Bhuyan
- Departments of Physiology and Cardiology & Cardiovascular Medicine, Eberhard-Karls-University of Tuebingen, Tuebingen, Germany
| | - Michela Castagna
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Florian Lang
- Departments of Physiology and Cardiology & Cardiovascular Medicine, Eberhard-Karls-University of Tuebingen, Tuebingen, Germany
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Manzur-Jattin F, Álvarez-Ortega N, Moneriz-Pretell C, Corrales-Santander H, Cantillo-García K. Eriptosis: mecanismos moleculares y su implicación en la enfermedad aterotrombótica. REVISTA COLOMBIANA DE CARDIOLOGÍA 2016. [DOI: 10.1016/j.rccar.2015.09.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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38
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Asif B, Rahim A, Fenner J, Lin F, Hirth D, Hassani J, McClain SA, Singer AJ, Tonnesen MG, Clark RA. Blood vessel occlusion in peri-burn tissue is secondary to erythrocyte aggregation and mitigated by a fibronectin-derived peptide that limits burn injury progression. Wound Repair Regen 2016; 24:501-13. [DOI: 10.1111/wrr.12430] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Revised: 03/14/2016] [Accepted: 03/21/2016] [Indexed: 01/21/2023]
Affiliation(s)
| | | | | | - Fubao Lin
- Department of Biomedical Engineering
| | | | | | - Steven A. McClain
- Department of Dermatology
- Department of Emergency Medicine; Stony Brook University; Stony Brook New York
| | - Adam J. Singer
- Department of Emergency Medicine; Stony Brook University; Stony Brook New York
| | - Marcia G. Tonnesen
- Department of Dermatology
- Dermatology Section; Medicine Service, Northport VAMC; Northport New York
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Carelli-Alinovi C, Ficarra S, Russo AM, Giunta E, Barreca D, Galtieri A, Misiti F, Tellone E. Involvement of acetylcholinesterase and protein kinase C in the protective effect of caffeine against β-amyloid-induced alterations in red blood cells. Biochimie 2016; 121:52-9. [DOI: 10.1016/j.biochi.2015.11.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Accepted: 11/22/2015] [Indexed: 02/04/2023]
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40
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Villa CH, Muzykantov VR, Cines DB. The emerging role for red blood cells in haemostasis: opportunity for intervention. ACTA ACUST UNITED AC 2016. [DOI: 10.1111/voxs.12197] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- C. H. Villa
- Department of Pathology and Laboratory Medicine; The Perelman School of Medicine, University of Pennsylvania; Philadelphia PA USA
| | - V. R. Muzykantov
- Department of Pharmacology and Center for Targeted Therapeutics and Translational Nanomedicine of the Institute for Translational Medicine and Therapeutics; The Perelman School of Medicine; University of Pennsylvania; Philadelphia PA USA
| | - D. B. Cines
- Department of Pathology and Laboratory Medicine; The Perelman School of Medicine, University of Pennsylvania; Philadelphia PA USA
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Waibel S, Bissinger R, Bouguerra G, Abbès S, Lang F. Ritonavir-Induced Suicidal Death of Human Erythrocytes. Basic Clin Pharmacol Toxicol 2016; 119:51-7. [DOI: 10.1111/bcpt.12547] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Accepted: 12/12/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Sabrina Waibel
- Department of Physiology; University of Tübingen; Tübingen Germany
| | - Rosi Bissinger
- Department of Physiology; University of Tübingen; Tübingen Germany
| | - Ghada Bouguerra
- Department of Physiology; University of Tübingen; Tübingen Germany
- Molecular & Cellular Hematology Laboratory; Pasteur Institute of Tunis; University of Tunis-El Manar; El Manar Tunisia
| | - Salem Abbès
- Molecular & Cellular Hematology Laboratory; Pasteur Institute of Tunis; University of Tunis-El Manar; El Manar Tunisia
| | - Florian Lang
- Department of Physiology; University of Tübingen; Tübingen Germany
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Officioso A, Manna C, Alzoubi K, Lang F. Bromfenvinphos induced suicidal death of human erythrocytes. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2016; 126:58-63. [PMID: 26778435 DOI: 10.1016/j.pestbp.2015.07.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 07/23/2015] [Accepted: 07/23/2015] [Indexed: 06/05/2023]
Abstract
The organophosphorus pesticide bromfenvinphos ((E,Z)-O,O-diethyl-O-[1-(2,4-dichlorophenyl)-2-bromovinyl] phosphate) has been shown to decrease hematocrit and hemoglobin levels in blood presumably by triggering oxidative stress of erythrocytes. Oxidative stress is known to activate erythrocytic Ca(2+) permeable unselective cation channels leading to Ca(2+) entry and increase of cytosolic Ca(2+) activity ([Ca(2+)]i), which in turn triggers eryptosis, the suicidal death characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. The present study explored, whether and how bromfenvinphos induces eryptosis. To this end, phosphatidylserine exposure at the cell surface was estimated from annexin-V-binding, cell volume from forward scatter, hemolysis from hemoglobin release, [Ca(2+)]i from Fluo3-fluorescence, and ROS formation from DCFDA dependent fluorescence. As a result, a 48hour exposure of human erythrocytes to bromfenvinphos (≥100μM) significantly increased the percentage of annexin-V-binding cells, significantly decreased forward scatter, significantly increased Fluo3-fluorescence, and significantly increased DCFDA fluorescence. The effect of bromfenvinphos on annexin-V-binding and forward scatter was significantly blunted, but not abolished by removal of extracellular Ca(2+). In conclusion, bromfenvinphos triggers cell shrinkage and phospholipid scrambling of the erythrocyte cell membrane, an effect in part due to stimulation of ROS formation and Ca(2+) entry.
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Affiliation(s)
- Arbace Officioso
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany; Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy
| | - Caterina Manna
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy
| | - Kousi Alzoubi
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany
| | - Florian Lang
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany.
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Attanasio P, Bissinger R, Haverkamp W, Pieske B, Wutzler A, Lang F. Enhanced suicidal erythrocyte death in acute cardiac failure. Eur J Clin Invest 2015; 45:1316-24. [PMID: 26479159 DOI: 10.1111/eci.12555] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 10/15/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND A common complication of acute cardiac failure (AHF) is anaemia, which negatively influences the clinical outcome. Causes of anaemia include enhanced eryptosis, a suicidal erythrocyte death characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation. Signalling triggering eryptosis include oxidative stress, increase of cytosolic Ca(2+) -activity ([Ca(2+) ]i ) and ceramide. The present study explored whether AHF is associated with accelerated eryptosis. MATERIALS AND METHODS Erythrocytes were drawn from healthy volunteers (n = 10) and patients hospitalized for AHF (n = 22). Phosphatidylserine exposure was estimated from annexin-V-binding, cell volume from forward scatter, [Ca(2+) ]i from Fluo3-fluorescence, ceramide abundance utilizing specific antibodies and reactive oxygen species (ROS) abundance from 2',7'-dichlorodihydrofluorescein diacetate (DCFDA) fluorescence, as determined by flow cytometry. RESULTS In AHF-patients, haemoglobin concentration (11·5 ± 0·5 g/dL), and haematocrit (35·6 ± 1·2%) were significantly lower than haemoglobin concentration (14·1 ± 0·4 g/dL), and haematocrit (40·1 ± 1·0%) in healthy volunteers, even though reticulocyte number was significantly higher in AHF patients (2·3 ± 0·3%) than in healthy volunteers (1·1 ± 0·2%). The percentage of erythrocytes exposing phosphatidylserine was significantly higher in AHF patients (1·8 ± 0·1%) than in healthy volunteers (1·2 ± 0·2%). The forward scatter was significantly lower and the ROS abundance significantly larger in AHF patients than in healthy volunteers. In erythrocytes drawn from healthy volunteers, phosphatidylserine and ROS abundance was increased to significantly higher values following a 24 h treatment with plasma from AHF patients than with plasma from healthy volunteers. CONCLUSION AHF leads to anaemia despite increased reticulocyte number and at least partially due to enhanced eryptosis. Underlying mechanisms include oxidative stress imposed by a plasma borne component.
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Affiliation(s)
- Philipp Attanasio
- Department of Cardiology, Charité, Campus Virchow Berlin, Berlin, Germany
| | - Rosi Bissinger
- Department of Physiology, University of Tübingen, Tübingen, Germany
| | - Wilhelm Haverkamp
- Department of Cardiology, Charité, Campus Virchow Berlin, Berlin, Germany
| | - Burkert Pieske
- Department of Cardiology, Charité, Campus Virchow Berlin, Berlin, Germany
| | - Alexander Wutzler
- Department of Cardiology, Charité, Campus Virchow Berlin, Berlin, Germany
| | - Florian Lang
- Department of Physiology, University of Tübingen, Tübingen, Germany
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44
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Misztal T, Rusak T, Brańska-Januszewska J, Ostrowska H, Tomasiak M. Peroxynitrite may affect fibrinolysis via the reduction of platelet-related fibrinolysis resistance and alteration of clot structure. Free Radic Biol Med 2015; 89:533-47. [PMID: 26454084 DOI: 10.1016/j.freeradbiomed.2015.09.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Revised: 09/19/2015] [Accepted: 09/21/2015] [Indexed: 11/20/2022]
Abstract
We tested the hypothesis that in vitro peroxynitrite (ONOO(-), a product of activated inflammatory cells) may affect fibrinolysis in human blood through the reduction of platelet-related fibrinolysis resistance. It was found that ONOO(-) (25-300 µM) accelerated lysis of platelet-fibrin clots (in PRP) dose-dependently, whereas fibrinolysis of platelet-free clots was slightly inhibited by ≥ 1000 µM stressor. Concentrations of ONOO(-) affecting the lysis of platelet-rich clots, inhibited clot retraction (CR) in a dose-dependent manner. Thromboelastometry (ROTEM) measurements performed in PRP showed that treatment with ONOO(-) (threshold conc. 100 µM) prolongs clotting time, and reduces alpha angle, and clot formation velocity parameters indicating for reduced thrombin formation rate. In PRP, ONOO(-) (threshold conc. 100 µM) reduced the collagen-evoked exposure of phosphatidylserine (PS) on platelets' plasma membrane, the shedding of platelet-derived microparticles (PMP), and inhibited platelet-dependent thrombin generation (measured in artificial system), dose-dependently. As judged by confocal microscopy, similar ONOO(-) concentrations altered the architecture of clots formed in collagen-treated PRP. Clots formed in the presence of ONOO(-) were less dense and were composed of thicker fibers, which make them more susceptible to lysis. In platelet-depleted plasma, ONOO(-) (up to milimolar concentration) did not alter clot structure. Blockage of PS exposed on platelets resulted in an alteration of clot architecture toward more prone to lysis. ONOO(-), at lysis-affecting concentrations, inhibited the collagen-evoked secretion of fibrinolytic inhibitors from platelets. We conclude that physiologically relevant ONOO(-) concentrations may accelerate the lysis of platelet-fibrin clots predominantly via downregulation of platelet-related mechanisms including: platelet secretion, clot retraction, platelet procoagulant response, and the alteration in clot architecture associated with it.
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Affiliation(s)
- Tomasz Misztal
- Department of Physical Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland
| | - Tomasz Rusak
- Department of Physical Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland
| | | | - Halina Ostrowska
- Department of Biology, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland
| | - Marian Tomasiak
- Department of Physical Chemistry, Medical University of Bialystok, Kilinskiego 1, 15-089 Bialystok, Poland.
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45
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Lang E, Bissinger R, Fajol A, Salker MS, Singh Y, Zelenak C, Ghashghaeinia M, Gu S, Jilani K, Lupescu A, Reyskens KMSE, Ackermann TF, Föller M, Schleicher E, Sheffield WP, Arthur JSC, Lang F, Qadri SM. Accelerated apoptotic death and in vivo turnover of erythrocytes in mice lacking functional mitogen- and stress-activated kinase MSK1/2. Sci Rep 2015; 5:17316. [PMID: 26611568 PMCID: PMC4661433 DOI: 10.1038/srep17316] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 10/28/2015] [Indexed: 12/25/2022] Open
Abstract
The mitogen- and stress-activated kinase MSK1/2 plays a decisive role in apoptosis. In analogy to apoptosis of nucleated cells, suicidal erythrocyte death called eryptosis is characterized by cell shrinkage and cell membrane scrambling leading to phosphatidylserine (PS) externalization. Here, we explored whether MSK1/2 participates in the regulation of eryptosis. To this end, erythrocytes were isolated from mice lacking functional MSK1/2 (msk−/−) and corresponding wild-type mice (msk+/+). Blood count, hematocrit, hemoglobin concentration and mean erythrocyte volume were similar in both msk−/− and msk+/+ mice, but reticulocyte count was significantly increased in msk−/− mice. Cell membrane PS exposure was similar in untreated msk−/− and msk+/+ erythrocytes, but was enhanced by pathophysiological cell stressors ex vivo such as hyperosmotic shock or energy depletion to significantly higher levels in msk−/− erythrocytes than in msk+/+ erythrocytes. Cell shrinkage following hyperosmotic shock and energy depletion, as well as hemolysis following decrease of extracellular osmolarity was more pronounced in msk−/− erythrocytes. The in vivo clearance of autologously-infused CFSE-labeled erythrocytes from circulating blood was faster in msk−/− mice. The spleens from msk−/− mice contained a significantly greater number of PS-exposing erythrocytes than spleens from msk+/+ mice. The present observations point to accelerated eryptosis and subsequent clearance of erythrocytes leading to enhanced erythrocyte turnover in MSK1/2-deficient mice.
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Affiliation(s)
- Elisabeth Lang
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany.,Department of Gastroenterology, Hepatology and Infectious Diseases, University of Düsseldorf, Moorenstrasse 5, 40225 Düsseldorf, Germany
| | - Rosi Bissinger
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Abul Fajol
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Madhuri S Salker
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Yogesh Singh
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Christine Zelenak
- Charité Medical University Berlin, Charitéplatz 1, 10117 Berlin, Germany
| | - Mehrdad Ghashghaeinia
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Shuchen Gu
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany.,Life Sciences Institute, Zhejiang University, Hangzhou, Zhejiang 310058, China
| | - Kashif Jilani
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany.,Department of Biochemistry, University of Agriculture, 38040 Faisalabad, Pakistan
| | - Adrian Lupescu
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Kathleen M S E Reyskens
- MRC Phosphorylation Unit, University of Dundee, Dow Street, Dundee DD1 5EH, United Kingdom.,Division of Cell Signaling and Immunology, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, United Kingdom
| | - Teresa F Ackermann
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Michael Föller
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany.,nstitute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg, Von-Danckelmann-Platz 2, 06120 Halle (Saale), Germany
| | - Erwin Schleicher
- Department of Internal Medicine, University of Tübingen, Otfried-Müller-Straβe 10, 72076 Tübingen, Germany
| | - William P Sheffield
- Department of Pathology and Molecular Medicine, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S4K1, Canada.,Centre for Innovation, Canadian Blood Services, 1280 Main Street West, Hamilton, Ontario L8S4K1, Canada
| | - J Simon C Arthur
- MRC Phosphorylation Unit, University of Dundee, Dow Street, Dundee DD1 5EH, United Kingdom.,Division of Cell Signaling and Immunology, College of Life Sciences, University of Dundee, Dow Street, Dundee DD1 5EH, United Kingdom
| | - Florian Lang
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany
| | - Syed M Qadri
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tübingen, Germany.,Department of Pathology and Molecular Medicine, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S4K1, Canada.,Centre for Innovation, Canadian Blood Services, 1280 Main Street West, Hamilton, Ontario L8S4K1, Canada
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Bissinger R, Malik A, Bouguerra G, Zhou Y, Singh Y, Abbès S, Lang F. Triggering of Suicidal Erythrocyte Death by the Antibiotic Ionophore Nigericin. Basic Clin Pharmacol Toxicol 2015; 118:381-9. [DOI: 10.1111/bcpt.12503] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 10/06/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Rosi Bissinger
- Department of Physiology; University of Tuebingen; Tuebingen Germany
| | - Abaid Malik
- Department of Physiology; University of Tuebingen; Tuebingen Germany
| | - Ghada Bouguerra
- Department of Physiology; University of Tuebingen; Tuebingen Germany
- Laboratoire d'Hématologie Moléculaire et Cellulaire; Institut Pasteur de Tunis; Université de Tunis-El Manar; Tunis Tunisia
| | - Yuetao Zhou
- Department of Physiology; University of Tuebingen; Tuebingen Germany
| | - Yogesh Singh
- Department of Physiology; University of Tuebingen; Tuebingen Germany
| | - Salem Abbès
- Laboratoire d'Hématologie Moléculaire et Cellulaire; Institut Pasteur de Tunis; Université de Tunis-El Manar; Tunis Tunisia
| | - Florian Lang
- Department of Physiology; University of Tuebingen; Tuebingen Germany
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47
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Hsu BB, Conway W, Tschabrunn CM, Mehta M, Perez-Cuevas MB, Zhang S, Hammond PT. Clotting Mimicry from Robust Hemostatic Bandages Based on Self-Assembling Peptides. ACS NANO 2015; 9:9394-406. [PMID: 26284753 PMCID: PMC4580967 DOI: 10.1021/acsnano.5b02374] [Citation(s) in RCA: 86] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 08/18/2015] [Indexed: 05/18/2023]
Abstract
Uncontrolled bleeding from traumatic wounds is a major factor in deaths resulting from military conflict, accidents, disasters and crime. Self-assembling peptide nanofibers have shown superior hemostatic activity, and herein, we elucidate their mechanism by visualizing the formation of nanofiber-based clots that aggregate blood components with a similar morphology to fibrin-based clots. Furthermore, to enhance its direct application to a wound, we developed layer-by-layer assembled thin film coatings onto common materials used for wound dressings-gauze and gelatin sponges. We find these nanofibers elute upon hydration under physiological conditions and generate nanofiber-based clots with blood. After exposure to a range of harsh temperature conditions (-80 to 60 °C) for a week and even 5 months at 60 °C, these hemostatic bandages remain capable of releasing active nanofibers. In addition, the application of these nanofiber-based films from gauze bandages was found to accelerate hemostasis in porcine skin wounds as compared to plain gauze. The thermal robustness, in combination with the self-assembling peptide's potent hemostatic activity, biocompatibility, biodegradability, and low cost of production, makes this a promising approach for a cheap yet effective hemostatic bandage.
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Affiliation(s)
- Bryan B. Hsu
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Cambridge, Massachusetts 02139, United States
| | - William Conway
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Cory M. Tschabrunn
- Harvard-Thorndike Electrophysiology Institute, Beth Israel Deaconess Medical Center Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Manav Mehta
- 3-D Matrix Medical Technology, Waltham, Massachusetts 02451, United States
| | - Monica B. Perez-Cuevas
- School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Shuguang Zhang
- Center for Bits & Atoms, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Paula T. Hammond
- Departments of Chemistry, Chemical Engineering, and Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
- Institute for Soldier Nanotechnologies, Cambridge, Massachusetts 02139, United States
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48
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Officioso A, Manna C, Alzoubi K, Lang F. Triggering of Erythrocyte Death by Triparanol. Toxins (Basel) 2015; 7:3359-71. [PMID: 26305256 PMCID: PMC4549755 DOI: 10.3390/toxins7083359] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Revised: 08/11/2015] [Accepted: 08/12/2015] [Indexed: 11/23/2022] Open
Abstract
The cholesterol synthesis inhibitor Triparanol has been shown to trigger apoptosis in several malignancies. Similar to the apoptosis of nucleated cells, erythrocytes may enter eryptosis, the suicidal death characterized by cell shrinkage and cell membrane scrambling with phosphatidylserine translocation to the erythrocyte surface. Triggers of eryptosis include oxidative stress which may activate erythrocytic Ca2+ permeable unselective cation channels with subsequent Ca2+ entry and increase of cytosolic Ca2+ activity ([Ca2+]i). The present study explored whether and how Triparanol induces eryptosis. To this end, phosphatidylserine exposure at the cell surface was estimated from annexin-V-binding, cell volume from forward scatter, hemolysis from hemoglobin release, [Ca2+]i from Fluo3-fluorescence, and ROS formation from 2’,7’-dichlorodihydrofluorescein diacetate (DCFDA) dependent fluorescence. As a result, a 48 h exposure of human erythrocytes to Triparanol (20 µM) significantly increased DCFDA fluorescence and significantly increased Fluo3-fluorescence. Triparanol (15 µM) significantly increased the percentage of annexin-V-binding cells, and significantly decreased the forward scatter. The effect of Triparanol on annexin-V-binding was significantly blunted, but not abolished by removal of extracellular Ca2+. In conclusion, Triparanol leads to eryptosis, the suicidal erythrocyte death characterized by cell shrinkage and phospholipid scrambling of the erythrocyte cell membrane. Triparanol is at least in part effective by stimulating ROS formation and Ca2+ entry.
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Affiliation(s)
- Arbace Officioso
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany.
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Caterina Manna
- Department of Biochemistry, Biophysics and General Pathology, School of Medicine and Surgery, Second University of Naples, Via L. De Crecchio 7, 80138 Naples, Italy.
| | - Kousi Alzoubi
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany.
| | - Florian Lang
- Department of Physiology, University of Tübingen, Gmelinstr. 5, 72076 Tuebingen, Germany.
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Abstract
The natural phosphoprotein phosphatase inhibitor cantharidin, primarily used for topical treatment of warts, has later been shown to trigger tumor cell apoptosis and is thus considered for the treatment of malignancy. Similar to apoptosis of tumor cells, erythrocytes may undergo eryptosis, a suicidal cell death characterized by cell shrinkage and translocation of cell membrane phosphatidylserine to the erythrocyte surface. Signaling of eryptosis includes increase of cytosolic Ca2+-activity ([Ca2+]i), ceramide, oxidative stress and dysregulation of several kinases. Phosphatidylserine abundance at the erythrocyte surface was quantified utilizing annexin-V-binding, cell volume from forward scatter, [Ca2+]i from Fluo3-fluorescence, ceramide from antibody binding, and reactive oxidant species (ROS) from 2′,7′-dichlorodihydrofluorescein diacetate (DCFDA) fluorescence. A 48 h treatment of human erythrocytes with cantharidin significantly increased the percentage of annexin-V-binding cells (≥10 μg/mL), significantly decreased forward scatter (≥25 μg/mL), significantly increased [Ca2+]i (≥25 μg/mL), but did not significantly modify ceramide abundance or ROS. The up-regulation of annexin-V-binding following cantharidin treatment was not significantly blunted by removal of extracellular Ca2+ but was abolished by kinase inhibitor staurosporine (1 μM) and slightly decreased by p38 inhibitor skepinone (2 μM). Exposure of erythrocytes to cantharidin triggers suicidal erythrocyte death with erythrocyte shrinkage and erythrocyte membrane scrambling, an effect sensitive to kinase inhibitors staurosporine and skepinone.
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Dietary indicaxanthin from cactus pear (Opuntia ficus-indicaL. Mill) fruit prevents eryptosis induced by oxysterols in a hypercholesterolaemia-relevant proportion and adhesion of human erythrocytes to endothelial cell layers. Br J Nutr 2015; 114:368-75. [DOI: 10.1017/s0007114515002111] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Toxic oxysterols in a hypercholesterolaemia-relevant proportion cause suicidal death of human erythrocytes or eryptosis. This process proceeds through early production of reactive oxygen species (ROS), release of prostaglandin (PGE2) and opening of PGE2-dependent Ca channels, membrane phosphatidylserine (PS) externalisation, and cell shrinkage. The present study was the first to reveal that a bioavailable phytochemical, indicaxanthin (Ind) from cactus pear fruit, in a concentration range (1·0–5·0 μM) consistent with its plasma level after a fruit meal, prevents PS externalisation and cell shrinkage in a dose-dependent manner when incubated with isolated healthy human erythrocytes exposed to an oxysterol mixture for 48 h. Dietary Ind inhibited ROS production, glutathione (GSH) depletion, PGE2 release and Ca2+entry. Ind alone did not modify the erythrocyte redox environment or affect other parameters.Ex vivospiking of normal human blood with the oxysterol mixture for 48 h induced eryptosis, resulting in the production of ROS and decreased levels of GSH, which was prevented by concurrent exposure to 5 μm-Ind. The adherence of eryptotic erythrocytes to the endothelium causes vascular tissue injury. Erythrocytes isolated from blood incubated with the oxysterol mixture plus 5 μm-Ind did not adhere to endothelial cell monolayers. Eryptotic erythrocytes may contribute to thrombotic complications in hypercholesterolaemia. Our findings suggest the positive effects of diets containing Ind on erythrocytes in hypercholesterolaemic subjects.
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