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Koehl B, Claude L, Reminy K, Tarer V, Baccini V, Romana M, Colin-Aronovicz Y, Damaraju VL, Sawyer M, Peyrard T, Etienne-Julan M, Le Van Kim C, Azouzi S, Reininger L. Erythrocyte type 1 equilibrative nucleoside transporter expression in sickle cell disease and sickle cell trait. Br J Haematol 2023; 200:812-820. [PMID: 36464247 DOI: 10.1111/bjh.18586] [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: 03/11/2022] [Revised: 10/31/2022] [Accepted: 11/21/2022] [Indexed: 12/07/2022]
Abstract
Hypoxia-mediated red blood cell (RBC) sickling is central to the pathophysiology of sickle cell disease (SCD). The signalling nucleoside adenosine is thought to play a significant role in this process. This study investigated expression of the erythrocyte type 1 equilibrative nucleoside transporter (ENT1), a key regulator of plasma adenosine, in adult patients with SCD and carriers of sickle cell trait (SCT). Relative quantitative expression analysis of erythrocyte ENT1 was carried out by Western blot and flow cytometry. Patients with SCD with steady state conditions, either with SS or SC genotype, untreated or under hydroxycarbamide (HC) treatment, exhibited a relatively high variability of erythrocyte ENT1, but with levels not significantly different from normal controls. Most strikingly, expression of erythrocyte ENT1 was found to be significantly decreased in patients with SCD undergoing painful vaso-occlusive episode and, unexpectedly, also in healthy SCT carriers. Promoting hypoxia-induced adenosine signalling, the reduced expression of erythrocyte ENT1 might contribute to the pathophysiology of SCD and to the susceptibility of SCT individuals to altitude hypoxia or exercise to exhaustion.
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Affiliation(s)
- Bérengère Koehl
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
| | - Livia Claude
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
| | - Karen Reminy
- Université des Antilles, Laboratoire ACTES EA3596, Pointe-à-Pitre, France
| | - Vanessa Tarer
- Unité Transversale de la Drépanocytose, Centre de Référence Maladies Rares pour la Drépanocytose aux Antilles-Guyane, CHU de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Véronique Baccini
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France.,Service d'Hématologie, CHU de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Marc Romana
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
| | - Yves Colin-Aronovicz
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
| | - Vijaya L Damaraju
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | | | - Thierry Peyrard
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France.,Département Centre National de Référence pour les Groupes Sanguins, Paris, France
| | - Maryse Etienne-Julan
- Unité Transversale de la Drépanocytose, Centre de Référence Maladies Rares pour la Drépanocytose aux Antilles-Guyane, CHU de Pointe-à-Pitre, Pointe-à-Pitre, France
| | - Caroline Le Van Kim
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
| | - Slim Azouzi
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France.,Département Centre National de Référence pour les Groupes Sanguins, Paris, France
| | - Luc Reininger
- Université de Paris and Université des Antilles, INSERM, Biologie Intégrée du Globule Rouge, Paris, France
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Amorim MDSDN, Batista JA, Junior FM, Fontes A, Santos-Oliveira R, Rebelo Alencar LM. New Insights into Hemolytic Anemias: Ultrastructural and Nanomechanical Investigation of Red Blood Cells Showed Early Morphological Changes. J Biomed Nanotechnol 2022; 18:405-421. [PMID: 35484760 DOI: 10.1166/jbn.2022.3267] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Several diseases are characterized by changes in the mechanical properties of erythrocytes. Hemolytic anemias are an example of these diseases. Among the hemolytic anemias, Sickle Cell Disease and Thalassemia are the most common, characterized by alterations in the structure of their hemoglobin. Sickle cell disease has a pathological origin in synthesizing abnormal hemoglobin, HbS. In contrast, thalassemia results in extinction or decreased synthesis of α and β hemoglobin chains. This work presents a detailed study of biophysical and ultrastructural early erythrocytes membrane alterations at the nanoscale using Atomic Force Microscopy (AFM). Cells from individuals with sickle cell anemia and thalassemia mutations were studied. The analysis methodology in the AFM was given by blood smear and exposure of the inner membrane for ghost analysis. A robust statistic was used with 65,536 force curves for each map, ten cells of each type, with three individuals for each sample group. The results showed significant differences in cell rigidity, adhesion, volume, and roughness at early morphological alterations, bringing new perspectives for understanding pathogenesis. The sickle cell trait (HbAS) results stand out. Significant alterations were observed in the membrane properties, bringing new perspectives for the knowledge of this mutation. This work presents ultrastructural and biomechanical signatures of sickle cell anemia and thalassemia genotypes, which may help determine a more accurate biophysical description and clinical prognosis for these diseases.
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Affiliation(s)
- Maria do Socorro do N Amorim
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
| | - Jerias A Batista
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
| | - Francisco Maia Junior
- Department of Natural Sciences, Mathematics, and Statistics, Federal Rural University of the Semi-Arid, Mossoró, 59625-900, Rio Grande do Norte, Brazil
| | - Adriana Fontes
- Department of Biophysics and Radiobiology, Center for Biosciences, Federal University of Pernambuco, Recife, 52171-011, Brazil
| | - Ralph Santos-Oliveira
- Zona Oeste State University, Laboratory of Nanoradiopharmaceuticals and Radiopharmacy, Rio de Janeiro, 23070200, Brazil
| | - Luciana M Rebelo Alencar
- Federal University of Maranhão, Department of Physics, Laboratory of Biophysics and Nanosystems, Campus Bacanga, São Luís, 65080-805, Maranhão, Brazil
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Chahine Z, Le Roch KG. Decrypting the complexity of the human malaria parasite biology through systems biology approaches. FRONTIERS IN SYSTEMS BIOLOGY 2022; 2:940321. [PMID: 37200864 PMCID: PMC10191146 DOI: 10.3389/fsysb.2022.940321] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The human malaria parasite, Plasmodium falciparum, is a unicellular protozoan responsible for over half a million deaths annually. With a complex life cycle alternating between human and invertebrate hosts, this apicomplexan is notoriously adept at evading host immune responses and developing resistance to all clinically administered treatments. Advances in omics-based technologies, increased sensitivity of sequencing platforms and enhanced CRISPR based gene editing tools, have given researchers access to more in-depth and untapped information about this enigmatic micro-organism, a feat thought to be infeasible in the past decade. Here we discuss some of the most important scientific achievements made over the past few years with a focus on novel technologies and platforms that set the stage for subsequent discoveries. We also describe some of the systems-based methods applied to uncover gaps of knowledge left through single-omics applications with the hope that we will soon be able to overcome the spread of this life-threatening disease.
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