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Huang S, Reed C, Ilsley M, Magor G, Tallack M, Landsberg M, Mitchell H, Gillinder K, Perkins A. Mutations in linker-2 of KLF1 impair expression of membrane transporters and cytoskeletal proteins causing hemolysis. Nat Commun 2024; 15:7019. [PMID: 39147774 PMCID: PMC11327367 DOI: 10.1038/s41467-024-50579-4] [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: 03/13/2023] [Accepted: 07/09/2024] [Indexed: 08/17/2024] Open
Abstract
The SP/KLF family of transcription factors harbour three C-terminal C2H2 zinc fingers interspersed by two linkers which confers DNA-binding to a 9-10 bp motif. Mutations in KLF1, the founding member of the family, are common. Missense mutations in linker two result in a mild phenotype. However, when co-inherited with loss-of-function mutations, they result in severe non-spherocytic hemolytic anemia. We generate a mouse model of this disease by crossing Klf1+/- mice with Klf1H350R/+ mice that harbour a missense mutation in linker-2. Klf1H350R/- mice exhibit severe hemolysis without thalassemia. RNA-seq demonstrate loss of expression of genes encoding transmembrane and cytoskeletal proteins, but not globins. ChIP-seq show no change in DNA-binding specificity, but a global reduction in affinity, which is confirmed using recombinant proteins and in vitro binding assays. This study provides new insights into how linker mutations in zinc finger transcription factors result in different phenotypes to those caused by loss-of-function mutations.
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Affiliation(s)
- Stephen Huang
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia
- School of Biomedical Sciences, The University of Queensland, St Lucia, Australia
| | - Casie Reed
- Australian Centre for Blood Diseases, Monash University, Clayton, Australia
| | - Melissa Ilsley
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia
- School of Biomedical Sciences, The University of Queensland, St Lucia, Australia
| | - Graham Magor
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia
- Australian Centre for Blood Diseases, Monash University, Clayton, Australia
| | - Michael Tallack
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia
| | - Michael Landsberg
- School of Chemistry and Molecular Biosciences, The University of Queensland, St Lucia, Australia
| | - Helen Mitchell
- Australian Centre for Blood Diseases, Monash University, Clayton, Australia
| | - Kevin Gillinder
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia
- Australian Centre for Blood Diseases, Monash University, Clayton, Australia
| | - Andrew Perkins
- Mater Research Institute - UQ, The University of Queensland, St Lucia, Australia.
- School of Biomedical Sciences, The University of Queensland, St Lucia, Australia.
- Australian Centre for Blood Diseases, Monash University, Clayton, Australia.
- Department of Haematology, The Alfred Hospital, Melbourne, Australia.
- Biodiscovery Institute, Monash University, Clayton, Australia.
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2
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Gao C, Zhang H, Wang Y, Wang S, Guo X, Han Y, Zhao H, An X. Global Transcriptomic and Characteristics Comparisons between Mouse Fetal Liver and Bone Marrow Definitive Erythropoiesis. Cells 2024; 13:1149. [PMID: 38995000 PMCID: PMC11240549 DOI: 10.3390/cells13131149] [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: 05/28/2024] [Revised: 06/30/2024] [Accepted: 07/02/2024] [Indexed: 07/13/2024] Open
Abstract
Erythropoiesis occurs first in the yolk sac as a transit "primitive" form, then is gradually replaced by the "definitive" form in the fetal liver (FL) during fetal development and in the bone marrow (BM) postnatally. While it is well known that differences exist between primitive and definitive erythropoiesis, the similarities and differences between FL and BM definitive erythropoiesis have not been studied. Here we performed comprehensive comparisons of erythroid progenitors and precursors at all maturational stages sorted from E16.5 FL and adult BM. We found that FL cells at all maturational stages were larger than their BM counterparts. We further found that FL BFU-E cells divided at a faster rate and underwent more cell divisions than BM BFU-E. Transcriptome comparison revealed that genes with increased expression in FL BFU-Es were enriched in cell division. Interestingly, the expression levels of glucocorticoid receptor Nr3c1, Myc and Myc downstream target Ccna2 were significantly higher in FL BFU-Es, indicating the role of the Nr3c1-Myc-Ccna2 axis in the enhanced proliferation/cell division of FL BFU-E cells. At the CFU-E stage, the expression of genes associated with hemoglobin biosynthesis were much higher in FL CFU-Es, indicating more hemoglobin production. During terminal erythropoiesis, overall temporal patterns in gene expression were conserved between the FL and BM. While biological processes related to translation, the tricarboxylic acid cycle and hypoxia response were upregulated in FL erythroblasts, those related to antiviral signal pathway were upregulated in BM erythroblasts. Our findings uncovered previously unrecognized differences between FL and BM definitive erythropoiesis and provide novel insights into erythropoiesis.
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Affiliation(s)
- Chengjie Gao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Huan Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Yaomei Wang
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
- Department of Hematology, The Affiliated Cancer Hospital of Zhengzhou University & Henan Cancer Hospital, Zhengzhou 450008, China
| | - Shihui Wang
- Institute of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - Xinhua Guo
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Yongshuai Han
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Huizhi Zhao
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - Xiuli An
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
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3
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Hamadani CM, Mahdi F, Merrell A, Flanders J, Cao R, Vashisth P, Dasanayake GS, Darlington DS, Singh G, Pride MC, Monroe WG, Taylor GR, Hunter AN, Roman G, Paris JJ, Tanner EEL. Ionic Liquid Coating-Driven Nanoparticle Delivery to the Brain: Applications for NeuroHIV. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305484. [PMID: 38572510 PMCID: PMC11186118 DOI: 10.1002/advs.202305484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/28/2023] [Indexed: 04/05/2024]
Abstract
Delivering cargo to the central nervous system (CNS) remains a pharmacological challenge. For infectious diseases such as HIV, the CNS acts as a latent reservoir that is inadequately managed by systemic antiretrovirals (ARTs). ARTs thus cannot eradicate HIV, and given CNS infection, patients experience neurological deficits collectively referred to as "neuroHIV". Herein, the development of bioinspired ionic liquid-coated nanoparticles (IL-NPs) for in situ hitchhiking on red blood cells (RBCs) is reported, which enables 48% brain delivery of intracarotid arterial- infused cargo. Moreover, IL choline trans-2-hexenoate (CA2HA 1:2) demonstrates preferential accumulation in parenchymal microglia over endothelial cells post-delivery. This study further demonstrates successful loading of abacavir (ABC), an ART that is challenging to encapsulate, into IL-NPs, and verifies retention of antiviral efficacy in vitro. IL-NPs are not cytotoxic to primary human peripheral blood mononuclear cells (PBMCs) and the CA2HA 1:2 coating itself confers notable anti-viremic capacity. In addition, in vitro cell culture assays show markedly increased uptake of IL-NPs into neural cells compared to bare PLGA nanoparticles. This work debuts bioinspired ionic liquids as promising nanoparticle coatings to assist CNS biodistribution and has the potential to revolutionize the delivery of cargos (i.e., drugs, viral vectors) through compartmental barriers such as the blood-brain-barrier (BBB).
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Affiliation(s)
- Christine M. Hamadani
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Fakhri Mahdi
- Department of BioMolecular SciencesThe University of MississippiUniversityMS38677USA
| | - Anya Merrell
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Jack Flanders
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Ruofan Cao
- Department of BioMolecular SciencesThe University of MississippiUniversityMS38677USA
| | - Priyavrat Vashisth
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Gaya S. Dasanayake
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Donovan S. Darlington
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Gagandeep Singh
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Mercedes C. Pride
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Wake G. Monroe
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - George R. Taylor
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Alysha N. Hunter
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
| | - Gregg Roman
- Department of BioMolecular SciencesThe University of MississippiUniversityMS38677USA
| | - Jason J. Paris
- Department of BioMolecular SciencesThe University of MississippiUniversityMS38677USA
| | - Eden E. L. Tanner
- Department of Chemistry & BiochemistryThe University of MississippiUniversityMS38677USA
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4
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Yip V, Saad OM, Leipold D, Li C, Kamath A, Shen BQ. Monomethyl Auristatin E (MMAE), a Payload for Multiple Antibody Drug Conjugates (ADCs), Demonstrates Differential Red Blood Cell Partitioning Across Human and Animal Species. Xenobiotica 2024:1-13. [PMID: 38647387 DOI: 10.1080/00498254.2024.2345849] [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: 02/15/2024] [Accepted: 04/17/2024] [Indexed: 04/25/2024]
Abstract
Background: Monomethyl auristatin E (MMAE) has been used as a payload for several Food and Drug Administration (FDA) approved antibody-drug conjugates (ADCs). It is known that MMAE is released from the ADC following binding, internalization and proteolytic degradation in target tissues. A striking discrepancy in systemic MMAE levels has been observed across species with 50-fold higher MMAE levels in human than that in rodents when normalized by ADC dose with unknown mechanism.Hypothesis and purpose: Multiple factors could affect systemic MMAE levels such as production and elimination of unconjugated MMAE following ADC dosing. In this study, we have explored whether MMAE displays differential red blood cell (RBC) partitioning across species that may contribute to the different MMAE levels seen between human and animals.Experiments: To determine MMAE RBC partitioning, tritium labeled MMAE ([3H]-MMAE) was incubated in whole blood from mice, rats, monkeys and humans in vitro, then RBC partitioning was determined and compared across species. To test whether MMAE released from the ADC would show any difference in RBC partitioning, pinatuzumab vedotin or polatuzumab vedotin was administered to mice, rats, and monkeys. MMAE levels were measured in both blood and plasma, and the ratios of MMAE levels were calculated as blood-to-plasma ratio (in vivo RBC partitioning).Results: Our in vitro data showed that unconjugated MMAE has a species-dependent RBC partitioning with strong RBC partitioning in mouse, rat, followed by monkey blood, whereas minimal RBC partitioning was seen in human blood. Incubation of 2 nM of MMAE in mouse blood resulted in a blood-to-plasma ratio of 11.8 ± 0.291, followed by rat, monkey, and human at 2.36 ± 0.0825, 1.57 ± 0.0250, and 0.976 ± 0.0620, respectively. MMAE RBC partitioning is also concentration-dependent, with an inverse relationship between RBC partitioning and MMAE concentration (higher RBC partitioning at lower concentration). In vivo dosing of pinatuzumab vedotin in mouse displayed systemic MMAE at about a 5-fold higher blood concentration compared to plasma concentration once MMAE reached a pseudo-equilibrium, while systemic MMAE from blood and plasma concentration showed a 1.65-fold difference in rat.Implication and conclusion: These data demonstrated that MMAE has a distinct RBC partitioning across different species, which may contribute to, at least in part, to the differential in the systemic MMAE levels observed in vivo between preclinical and clinical studies. These findings highlight the importance of fully characterizing the ADME properties of both the ADC and its payload, to enable better translation from animals to human for ADC development.
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Affiliation(s)
- Victor Yip
- Preclinical and Translational Pharmacokinetics and Pharmacodynamics, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
| | - Ola M Saad
- BioAnalytical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
| | - Doug Leipold
- Preclinical and Translational Pharmacokinetics and Pharmacodynamics, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
| | - Chunze Li
- Clinical Pharmacology, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
| | - Amrita Kamath
- Preclinical and Translational Pharmacokinetics and Pharmacodynamics, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
| | - Ben-Quan Shen
- Preclinical and Translational Pharmacokinetics and Pharmacodynamics, Genentech Inc., 1 DNA Way, South San Francisco, CA 94080
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5
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Freire CM, King NR, Dzieciatkowska M, Stephenson D, Moura PL, Dobbe JGG, Streekstra GJ, D'Alessandro A, Toye AM, Satchwell TJ. Complete absence of GLUT1 does not impair human terminal erythroid differentiation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.10.574621. [PMID: 38293086 PMCID: PMC10827085 DOI: 10.1101/2024.01.10.574621] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The Glucose transporter 1 (GLUT1) is one of the most abundant proteins within the erythrocyte membrane and is required for glucose and dehydroascorbic acid (Vitamin C precursor) transport. It is widely recognized as a key protein for red cell structure, function, and metabolism. Previous reports highlighted the importance of GLUT1 activity within these uniquely glycolysis-dependent cells, in particular for increasing antioxidant capacity needed to avoid irreversible damage from oxidative stress in humans. However, studies of glucose transporter roles in erythroid cells are complicated by species-specific differences between humans and mice. Here, using CRISPR-mediated gene editing of immortalized erythroblasts and adult CD34+ hematopoietic progenitor cells, we generate committed human erythroid cells completely deficient in expression of GLUT1. We show that absence of GLUT1 does not impede human erythroblast proliferation, differentiation, or enucleation. This work demonstrates for the first-time generation of enucleated human reticulocytes lacking GLUT1. The GLUT1-deficient reticulocytes possess no tangible alterations to membrane composition or deformability in reticulocytes. Metabolomic analyses of GLUT1-deficient reticulocytes reveal hallmarks of reduced glucose import, downregulated metabolic processes and upregulated AMPK-signalling, alongside alterations in antioxidant metabolism, resulting in increased osmotic fragility and metabolic shifts indicative of higher oxidant stress. Despite detectable metabolic changes in GLUT1 deficient reticulocytes, the absence of developmental phenotype, detectable proteomic compensation or impaired deformability comprehensively alters our understanding of the role of GLUT1 in red blood cell structure, function and metabolism. It also provides cell biological evidence supporting clinical consensus that reduced GLUT1 expression does not cause anaemia in GLUT1 deficiency syndrome.
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Affiliation(s)
- C M Freire
- School of Biochemistry, University of Bristol, Bristol, UK
| | - N R King
- School of Biochemistry, University of Bristol, Bristol, UK
| | - M Dzieciatkowska
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - D Stephenson
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - P L Moura
- Center for Haematology and Regenerative Medicine, Department of Medicine (MedH), Karolinska Institutet, Huddinge, Sweden
| | - J G G Dobbe
- Amsterdam UMC location University of Amsterdam, Biomedical Engineering and Physics, Meibergdreef 9, Amsterdam, the Netherlands
| | - G J Streekstra
- Amsterdam UMC location University of Amsterdam, Biomedical Engineering and Physics, Meibergdreef 9, Amsterdam, the Netherlands
| | - A D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO 80045, USA
| | - A M Toye
- School of Biochemistry, University of Bristol, Bristol, UK
| | - T J Satchwell
- School of Biochemistry, University of Bristol, Bristol, UK
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6
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Thomas N, Schröder NH, Nowak MK, Wollnitzke P, Ghaderi S, von Wnuck Lipinski K, Wille A, Deister-Jonas J, Vogt J, Gräler MH, Dannenberg L, Buschmann T, Westhoff P, Polzin A, Kelm M, Keul P, Weske S, Levkau B. Sphingosine-1-phosphate suppresses GLUT activity through PP2A and counteracts hyperglycemia in diabetic red blood cells. Nat Commun 2023; 14:8329. [PMID: 38097610 PMCID: PMC10721873 DOI: 10.1038/s41467-023-44109-x] [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: 06/13/2022] [Accepted: 11/30/2023] [Indexed: 12/17/2023] Open
Abstract
Red blood cells (RBC) are the major carriers of sphingosine-1-phosphate (S1P) in blood. Here we show that variations in RBC S1P content achieved by altering S1P synthesis and transport by genetic and pharmacological means regulate glucose uptake and metabolic flux. This is due to S1P-mediated activation of the catalytic protein phosphatase 2 (PP2A) subunit leading to reduction of cell-surface glucose transporters (GLUTs). The mechanism dynamically responds to metabolic cues from the environment by increasing S1P synthesis, enhancing PP2A activity, reducing GLUT phosphorylation and localization, and diminishing glucose uptake in RBC from diabetic mice and humans. Functionally, it protects RBC against lipid peroxidation in hyperglycemia and diabetes by activating the pentose phosphate pathway. Proof of concept is provided by the resistance of mice lacking the S1P exporter MFSD2B to diabetes-induced HbA1c elevation and thiobarbituric acid reactive substances (TBARS) generation in diabetic RBC. This mechanism responds to pharmacological S1P analogues such as fingolimod and may be functional in other insulin-independent tissues making it a promising therapeutic target.
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Affiliation(s)
- Nadine Thomas
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Nathalie H Schröder
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Melissa K Nowak
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Philipp Wollnitzke
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Shahrooz Ghaderi
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | | | - Annalena Wille
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | | | - Jens Vogt
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Markus H Gräler
- Department of Anesthesiology and Intensive Care Medicine, Center for Sepsis Control and Care, Jena University Hospital, Jena, Germany
- Center for Molecular Biomedicine, Jena University Hospital, Jena, Germany
| | - Lisa Dannenberg
- Division of Cardiology, Pulmonology, and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Tobias Buschmann
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Philipp Westhoff
- Institute of Plant Biochemistry, Cluster of Excellence on Plant Sciences (CEPLAS), Heinrich Heine University, Düsseldorf, Germany
| | - Amin Polzin
- Division of Cardiology, Pulmonology, and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Malte Kelm
- Division of Cardiology, Pulmonology, and Vascular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Petra Keul
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Sarah Weske
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany
| | - Bodo Levkau
- Institute of Molecular Medicine III, Heinrich Heine University, Düsseldorf, Germany.
- CARID, Cardiovascular Research Institute Düsseldorf, Medical Faculty and University Hospital, Düsseldorf, Germany.
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7
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Chen Q, Xiao Z, Wang C, Chen G, Zhang Y, Zhang X, Han X, Wang J, Ye X, Prausnitz MR, Li S, Gu Z. Microneedle Patches Loaded with Nanovesicles for Glucose Transporter-Mediated Insulin Delivery. ACS NANO 2022; 16:18223-18231. [PMID: 36322923 PMCID: PMC10738036 DOI: 10.1021/acsnano.2c05687] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Glucose-responsive insulin delivery systems that mimic insulin secretion activity in the pancreas show great potential to improve clinical therapeutic outcomes for people with type 1 and advanced type 2 diabetes. Here, we report a glucose-responsive insulin delivery microneedle (MN) array patch that is loaded with red blood cell (RBC) vesicles or liposome nanoparticles containing glucose transporters (GLUTs) bound with glucosamine-modified insulin (Glu-Insulin). In hyperglycemic conditions, high concentrations of glucose in interstitial fluid can replace Glu-Insulin via a competitive interaction with GLUT, leading to a quick release of Glu-Insulin and subsequent regulation of blood glucose (BG) levels in vivo. To prolong the effective glucose-responsive insulin release from MNs, additional free Glu-Insulin, which serves as "stored insulin", is loaded after RBC vesicles or liposome nanoparticles bound with Glu-Insulin. In the streptozotocin (STZ)-induced type 1 diabetic mouse model, this smart GLUT-based insulin patch can effectively control BG levels without causing hypoglycemia.
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Affiliation(s)
- Qian Chen
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123
| | - Zhisheng Xiao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Chao Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Guojun Chen
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Yuqi Zhang
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xudong Zhang
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Xiao Han
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Jinqiang Wang
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao Ye
- Geriatric Medicine Center, Department of Endocrinology, Zhejiang Provincial People’s Hospital (Affiliated People’s Hospital, Hangzhou Medical College), Hangzhou, Zhejiang 310014, China
- Key Laboratory for Diagnosis and Treatment of Endocrine Gland Diseases of Zhejiang Province, Hangzhou, Zhejiang 310014, China
| | - Mark R. Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Song Li
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
| | - Zhen Gu
- Department of Bioengineering, University of California, Los Angeles, California 90095, United States
- California NanoSystems Institute, University of California, Los Angeles, California 90095, United States
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, North Carolina 27695, United States
- Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province, College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
- Jinhua Institute of Zhejiang University, Jinhua 321299, China
- Department of General Surgery, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, China
- Zhejiang Laboratory of Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou 311121, China
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, China
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8
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Kralova B, Sochorcova L, Song J, Jahoda O, Hlusickova Kapralova K, Prchal JT, Divoky V, Horvathova M. Developmental changes in iron metabolism and erythropoiesis in mice with human gain-of-function erythropoietin receptor. Am J Hematol 2022; 97:1286-1299. [PMID: 35815815 DOI: 10.1002/ajh.26658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 07/05/2022] [Indexed: 01/24/2023]
Abstract
Iron availability for erythropoiesis is controlled by the iron-regulatory hormone hepcidin. Increased erythropoiesis negatively regulates hepcidin synthesis by erythroferrone (ERFE), a hormone produced by erythroid precursors in response to erythropoietin (EPO). The mechanisms coordinating erythropoietic activity with iron homeostasis in erythrocytosis with low EPO are not well defined as exemplified by dominantly inherited (heterozygous) gain-of-function mutation of human EPO receptor (mtHEPOR) with low EPO characterized by postnatal erythrocytosis. We previously created a mouse model of this mtHEPOR that develops fetal erythrocytosis with a transient perinatal amelioration of erythrocytosis and its reappearance at 3-6 weeks of age. Prenatally and perinatally, mtHEPOR heterozygous and homozygous mice (differing in erythrocytosis severity) had increased Erfe transcripts, reduced hepcidin, and iron deficiency. Epo was transiently normal in the prenatal life; then decreased at postnatal day 7, and remained reduced in adulthood. Postnatally, hepcidin increased in mtHEPOR heterozygotes and homozygotes, accompanied by low Erfe induction and iron accumulation. With aging, the old, especially mtHEPOR homozygotes had a decline of erythropoiesis, myeloid expansion, and local bone marrow inflammatory stress. In addition, mtHEPOR erythrocytes had a reduced lifespan. This, together with reduced iron demand for erythropoiesis, due to its age-related attenuation, likely contributes to increased iron deposition in the aged mtHEPOR mice. In conclusion, the erythroid drive-mediated inhibition of hepcidin production in mtHEPOR mice in the prenatal/perinatal period is postnatally abrogated by increasing iron stores promoting hepcidin synthesis. The differences observed in studied characteristics between mtHEPOR heterozygotes and homozygotes suggest dose-dependent alterations of downstream EPOR stimulation.
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Affiliation(s)
- Barbora Kralova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lucie Sochorcova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Jihyun Song
- Division of Hematology & Hematologic Malignancies, The University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ondrej Jahoda
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | | | - Josef T Prchal
- Division of Hematology & Hematologic Malignancies, The University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Vladimir Divoky
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Monika Horvathova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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9
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Phadke I, Pouzolles M, Machado A, Moraly J, Gonzalez-Menendez P, Zimmermann VS, Kinet S, Levine M, Violet PC, Taylor N. Vitamin C deficiency reveals developmental differences between neonatal and adult hematopoiesis. Front Immunol 2022; 13:898827. [PMID: 36248829 PMCID: PMC9562198 DOI: 10.3389/fimmu.2022.898827] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 09/02/2022] [Indexed: 11/25/2022] Open
Abstract
Hematopoiesis, a process that results in the differentiation of all blood lineages, is essential throughout life. The production of 1x1012 blood cells per day, including 200x109 erythrocytes, is highly dependent on nutrient consumption. Notably though, the relative requirements for micronutrients during the perinatal period, a critical developmental window for immune cell and erythrocyte differentiation, have not been extensively studied. More specifically, the impact of the vitamin C/ascorbate micronutrient on perinatal as compared to adult hematopoiesis has been difficult to assess in animal models. Even though humans cannot synthesize ascorbate, due to a pseudogenization of the L-gulono-γ-lactone oxidase (GULO) gene, its generation from glucose is an ancestral mammalian trait. Taking advantage of a Gulo-/- mouse model, we show that ascorbic acid deficiency profoundly impacts perinatal hematopoiesis, resulting in a hypocellular bone marrow (BM) with a significant reduction in hematopoietic stem cells, multipotent progenitors, and hematopoietic progenitors. Furthermore, myeloid progenitors exhibited differential sensitivity to vitamin C levels; common myeloid progenitors and megakaryocyte-erythrocyte progenitors were markedly reduced in Gulo-/- pups following vitamin C depletion in the dams, whereas granulocyte-myeloid progenitors were spared, and their frequency was even augmented. Notably, hematopoietic cell subsets were rescued by vitamin C repletion. Consistent with these data, peripheral myeloid cells were maintained in ascorbate-deficient Gulo-/- pups while other lineage-committed hematopoietic cells were decreased. A reduction in B cell numbers was associated with a significantly reduced humoral immune response in ascorbate-depleted Gulo-/- pups but not adult mice. Erythropoiesis was particularly sensitive to vitamin C deprivation during both the perinatal and adult periods, with ascorbate-deficient Gulo-/- pups as well as adult mice exhibiting compensatory splenic differentiation. Furthermore, in the pathological context of hemolytic anemia, vitamin C-deficient adult Gulo-/- mice were not able to sufficiently increase their erythropoietic activity, resulting in a sustained anemia. Thus, vitamin C plays a pivotal role in the maintenance and differentiation of hematopoietic progenitors during the neonatal period and is required throughout life to sustain erythroid differentiation under stress conditions.
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Affiliation(s)
- Ira Phadke
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Marie Pouzolles
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Alice Machado
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Josquin Moraly
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
| | - Pedro Gonzalez-Menendez
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Valérie S. Zimmermann
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Sandrina Kinet
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Mark Levine
- Molecular and Clinical Nutrition Section, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Mark Levine, ; Pierre-Christian Violet, ; Naomi Taylor,
| | - Pierre-Christian Violet
- Molecular and Clinical Nutrition Section, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
- *Correspondence: Mark Levine, ; Pierre-Christian Violet, ; Naomi Taylor,
| | - Naomi Taylor
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health (NIH), Bethesda, MD, United States
- Institut de Génétique Moléculaire de Montpellier, University of Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- *Correspondence: Mark Levine, ; Pierre-Christian Violet, ; Naomi Taylor,
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10
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Lv L, Xu Z, Zhao M, Gao J, Jiang R, Wang Q, Shi X. Mannose inhibits Plasmodium parasite growth and cerebral malaria development via regulation of host immune responses. Front Immunol 2022; 13:859228. [PMID: 36211381 PMCID: PMC9546034 DOI: 10.3389/fimmu.2022.859228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 09/08/2022] [Indexed: 11/16/2022] Open
Abstract
D-mannose can be transported into a variety of cells via glucose transporter (GLUT), and supraphysiological levels of D-mannose impairs tumor growth and modulates immune cell function through mechanisms such as interference with glycolysis and induction of oxidative stress. Blood-stage Plasmodium mainly depends on glycolysis for energy supply and pathological immune response plays a vital role in cerebral malaria. However, it is not clear whether mannose affects malaria blood-stage infection. Here, we fed D-mannose to Plasmodium berghei-infected mice and found weight loss and reduced parasitemia without apparent side effects. Compromised parasitemia in C57BL/6 mice was accompanied by an increase in splenic macrophages compared to an untreated group. When mannose was applied to a rodent experimental cerebral malaria (ECM) model, the incidence of ECM decreased. Expression of activation marker CD69 on T cells in peripheral blood and the brain were reduced, and cerebral migration of activated T cells was prevented by decreased expression of CXCR3. These findings suggest that mannose inhibits Plasmodium infection by regulating multiple host immune responses and could serve as a potential strategy for facilitating malaria treatment.
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Affiliation(s)
- Li Lv
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Zihao Xu
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
| | - Meichen Zhao
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
| | - Jian Gao
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
| | - Rumeng Jiang
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
| | - Qian Wang
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
- National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- *Correspondence: Qian Wang, ; Xiaoyu Shi,
| | - Xiaoyu Shi
- Department of Immunology, School of Basic Medical Sciences, Tianjin Medical University, Tianjin Key Laboratory of Cellular and Molecular Immunology, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin, China
- *Correspondence: Qian Wang, ; Xiaoyu Shi,
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11
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Jang JW, Kim H, Kim I, Lee SW, Jung HG, Hwang KS, Lee JH, Lee G, Lee D, Yoon DS. Surface Functionalization of Enzyme-Coronated Gold Nanoparticles with an Erythrocyte Membrane for Highly Selective Glucose Assays. Anal Chem 2022; 94:6473-6481. [PMID: 35438972 DOI: 10.1021/acs.analchem.1c04541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Colorimetric glucose sensors using enzyme-coronated gold nanoparticles have been developed for high-throughput assays to monitor the blood glucose levels of diabetic patients. Although those sensors have shown sensitivity and wide linear detection ranges, they suffer from poor selectivity and stability in detecting blood glucose, which has limited their practical use. To address this limitation, herein, we functionalized glucose-oxidase-coronated gold nanoparticles with an erythrocyte membrane (EM-GOx-GNPs). Because the erythrocyte membrane (EM) selectively facilitates the permeation of glucose via glucose transporter-1 (GLUT1), the functionalization of GOx-GNPs with EM improved the stability, selectivity (3.3- to 15.8-fold higher), and limit of detection (LOD). Both membrane proteins, GLUT1 and aquaporin-1 (AQP1), on EM were shown to be key components for selective glucose detection by treatment with their inhibitors. Moreover, we demonstrated the stability of EM-GOx-GNPs in high-antioxidant-concentration conditions, under long-term storage (∼4 weeks) and a freeze-thaw cycle. Selectivity of the EM-GOx-GNPs against other saccharides was increased, which improved the LOD in phosphate-buffered saline and human serum. Our results indicated that the functionalization of colorimetric glucose sensors with EM is beneficial for improving selectivity and stability, which may make them candidates for use in a practical glucose sensor.
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Affiliation(s)
- Jae Won Jang
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea.,Interdisciplinary Program in Precision Public Health, Korea University, Seoul 02841, South Korea
| | - Hyunji Kim
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea.,Interdisciplinary Program in Precision Public Health, Korea University, Seoul 02841, South Korea
| | - Insu Kim
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Sang Won Lee
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Hyo Gi Jung
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea.,Interdisciplinary Program in Precision Public Health, Korea University, Seoul 02841, South Korea
| | - Kyo Seon Hwang
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul 02453, South Korea
| | - Jeong Hoon Lee
- Department of Electrical Engineering, Kwangwoon University, Seoul 01897, Republic of Korea
| | - Gyudo Lee
- Department of Biotechnology and Bioinformatics, Korea University, Sejong 30019, South Korea.,Interdisciplinary Graduate Program for Artificial Intelligence Smart Convergence Technology, Korea University, Sejong 30019, South Korea
| | - Dongtak Lee
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea
| | - Dae Sung Yoon
- School of Biomedical Engineering, Korea University, Seoul 02841, South Korea.,Interdisciplinary Program in Precision Public Health, Korea University, Seoul 02841, South Korea
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12
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Lin ECY, Chen SW, Chen LK, Lin TA, Wu YX, Juan CC, Chang YI. Glucosamine Interferes With Myelopoiesis and Enhances the Immunosuppressive Activity of Myeloid-Derived Suppressor Cells. Front Nutr 2021; 8:762363. [PMID: 34901113 PMCID: PMC8660085 DOI: 10.3389/fnut.2021.762363] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 10/19/2021] [Indexed: 12/16/2022] Open
Abstract
Glucosamine (GlcN) is the most widely consumed dietary supplement and exhibits anti-inflammatory effects. However, the influence of GlcN on immune cell generation and function is largely unclear. In this study, GlcN was delivered into mice to examine its biological function in hematopoiesis. We found that GlcN promoted the production of immature myeloid cells, known as myeloid-derived suppressor cells (MDSCs), both in vivo and in vitro. Additionally, GlcN upregulated the expression of glucose transporter 1 in hematopoietic stem and progenitor cells (HSPCs), influenced HSPC functions, and downregulated key genes involved in myelopoiesis. Furthermore, GlcN increased the expression of arginase 1 and inducible nitric oxide synthase to produce high levels of reactive oxygen species, which was regulated by the STAT3 and ERK1/2 pathways, to increase the immunosuppressive ability of MDSCs. We revealed a novel role for GlcN in myelopoiesis and MDSC activity involving a potential link between GlcN and immune system, as well as the new therapeutic benefit.
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Affiliation(s)
- Eric Chang-Yi Lin
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Shuoh-Wen Chen
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Luen-Kui Chen
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Ting-An Lin
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan.,Department of Internal Medicine, School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan.,Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan
| | - Yu-Xuan Wu
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Chi-Chang Juan
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
| | - Yuan-I Chang
- Department and Institute of Physiology, College of Medicine, National Yang Ming Chiao Tung University, Taipei City, Taiwan
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13
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Lombardi AF, Wong JH, High R, Ma Y, Jerban S, Tang Q, Du J, Frost P, Pagel MD, Chang EY. AcidoCEST MRI Evaluates the Bone Microenvironment in Multiple Myeloma. Mol Imaging Biol 2021; 23:865-873. [PMID: 33939066 PMCID: PMC8563482 DOI: 10.1007/s11307-021-01611-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 04/14/2021] [Accepted: 04/26/2021] [Indexed: 01/29/2023]
Abstract
PURPOSE Multiple myeloma (MM) is an incurable disease of malignant plasma cells in the bone marrow (BM). Adaptive responses to hypoxia may be an essential element in MM progression and drug resistance. This metabolic adaptation involves a decrease in extracellular pH (pHe), and it depends on the upregulation of glucose transporters (GLUTs) that is common in hypoxia and in cancer cells. CEST MRI is an imaging technique that assesses pHe indirectly by the exchange rate of magnetic saturation transfer between labile protons on a solute and water. Thus, this study aimed to determine the feasibility of acidoCEST MRI for pHe measurement using an orthotopic mouse model of MM compared with GLUT1 immunofluorescence staining as a reference. PROCEDURES Orthotopic BM engrafted MM xenografts were established in NSG/NOD mice using the human RPMI8226 myeloma cell line. AcidoCEST MRI was performed approximately 6 weeks after intravenous challenge, before and after intravenous administration of iopamidol. BM pHe values were generated via fitting the CEST spectrum with the Bloch-McConnell equations. Samples were decalcified, sectioned, and immunostained for GLUT1 expression. Pearson's correlation was used to assess the relationship between pHe and [H3O+] versus GLUT1 expression. RESULTS Ten mice underwent acidoCEST MRI followed by immunofluorescent histologic analysis. A strong negative correlation was seen between pHe versus GLUT1 expression (r = - 0.75, p < 0.001). After transformation of pH to [H3O+], a strong positive correlation between [H3O+] and GLUT1 expression was observed (r = 0.8, p < 0.001). CONCLUSIONS AcidoCEST MRI can measure the extracellular pH of bone marrow affected by multiple myeloma. In this MM orthotopic mouse model, pHe measured by acidoCEST MRI showed strong correlations with the metabolic phenotype of BM tumor assessed by immunofluorescent histological assessment of GLUT1 overexpression.
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Affiliation(s)
- Alecio F Lombardi
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Jonathan H Wong
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Rachel High
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Yajun Ma
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Saeed Jerban
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Qingbo Tang
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Jiang Du
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA
- Department of Radiology, University of California, San Diego, CA, USA
| | - Patrick Frost
- Research Service, Greater Los Angeles Veteran Administration Healthcare System, Los Angeles, CA, USA
- Department of Medicine, University of California, Los Angeles, CA, USA
| | - Mark D Pagel
- Department of Cancer Systems Imaging, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Eric Y Chang
- Research Service, VA San Diego Healthcare System, 3350 La Jolla Village Drive, CA, 92161, San Diego, USA.
- Department of Radiology, University of California, San Diego, CA, USA.
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14
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Wondimu ET, Zhang Q, Jin Z, Fu M, Torregrossa R, Whiteman M, Yang G, Wu L, Wang R. Effect of hydrogen sulfide on glycolysis-based energy production in mouse erythrocytes. J Cell Physiol 2021; 237:763-773. [PMID: 34346059 DOI: 10.1002/jcp.30544] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 07/06/2021] [Accepted: 07/24/2021] [Indexed: 11/08/2022]
Abstract
Hydrogen sulfide (H2 S) is a gasotransmitter that regulates both physiological and pathophysiological processes in mammalian cells. Recent studies have demonstrated that H2 S promotes aerobic energy production in the mitochondria in response to hypoxia, but its effect on anaerobic energy production has yet to be established. Glycolysis is the anaerobic process by which ATP is produced through the metabolism of glucose. Mammalian red blood cells (RBCs) extrude mitochondria and nucleus during erythropoiesis. These cells would serve as a unique model to observe the effect of H2 S on glycolysis-mediated energy production. The purpose of this study was to determine the effect of H2 S on glycolysis-mediated energy production in mitochondria-free mouse RBCs. Western blot analysis showed that the only H2 S-generating enzyme expressed in mouse RBCs is 3-mercaptopyruvate sulfurtransferase (MST). Supplement of the substrate for MST stimulated, but the inhibition of the same suppressed, the endogenous production of H2 S. Both exogenously administered H2 S salt and MST-derived endogenous H2 S stimulated glycolysis-mediated ATP production. The effect of NaHS on ATP levels was not affected by oxygenation status. On the contrary, hypoxia increased intracellular H2 S levels and MST activity in mouse RBCs. The mitochondria-targeted H2 S donor, AP39, did not affect ATP levels of mouse RBCs. NaHS at low concentrations (3-100 μM) increased ATP levels and decreased cell viability after 3 days of incubation in vitro. Higher NaHS concentrations (300-1000 μM) lowered ATP levels, but prolonged cell viability. H2 S may offer a cytoprotective effect in mammalian RBCs to maintain oxygen-independent energy production.
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Affiliation(s)
- Eden T Wondimu
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,Department of Biology, Laurentian University, Sudbury, Ontario, Canada
| | - Quanxi Zhang
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,School of Life Science, Shanxi University, Taiyuan, China
| | - Zhuping Jin
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,School of Life Science, Shanxi University, Taiyuan, China
| | - Ming Fu
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,School of Human Kinetics, Laurentian University, Sudbury, Ontario, Canada
| | - Roberta Torregrossa
- University of Exeter Medical School, Exeter, UK.,MitoRx Therapeutics, Oxford, UK
| | - Matthew Whiteman
- University of Exeter Medical School, Exeter, UK.,MitoRx Therapeutics, Oxford, UK
| | - Guangdong Yang
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,Department of Chemistry and Biochemistry, Laurentian University, Sudbury, Ontario, Canada
| | - Lingyun Wu
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, Ontario, Canada.,School of Human Kinetics, Laurentian University, Sudbury, Ontario, Canada.,Health Sciences North Research Institute, Sudbury, Ontario, Canada
| | - Rui Wang
- Department of Biology, York University, Toronto, Ontario, Canada
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15
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Pharmacological inhibition of GLUT1 as a new immunotherapeutic approach after myocardial infarction. Biochem Pharmacol 2021; 190:114597. [PMID: 33965393 DOI: 10.1016/j.bcp.2021.114597] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 05/01/2021] [Accepted: 05/04/2021] [Indexed: 11/21/2022]
Abstract
Myocardial infarction (MI) is one of the major contributors to cardiovascular morbidity and mortality. Excess inflammation significantly contributes to cardiac remodeling and heart failure after MI. Accumulating evidence has shown the central role of cellular metabolism in regulating the differentiation and function of cells. Metabolic rewiring is particularly relevant for proinflammatory responses induced by ischemia. Hypoxia reduces mitochondrial oxidative phosphorylation (OXPHOS) and induces increased reliance on glycolysis. Moreover, activation of a proinflammatory transcriptional program is associated with preferential glucose metabolism in leukocytes. An improved understanding of the mechanisms that regulate metabolic adaptations holds the potential to identify new metabolic targets and strategies to reduce ischemic cardiac damage, attenuate excess local inflammation and ultimately prevent the development of heart failure. Among possible drug targets, glucose transporter 1 (GLUT1) gained considerable interest considering its pivotal role in regulating glucose availability in activated leukocytes and the availability of small molecules that selectively inhibit it. Therefore, we summarize current evidence on the role of GLUT1 in leukocytes (focusing on macrophages and T cells) and non-leukocytes, including cardiomyocytes, endothelial cells and fibroblasts regarding ischemic heart disease. Beyond myocardial infarction, we can foresee the role of GLUT1 blockers as a possible pharmacological approach to limit pathogenic inflammation in other conditions driven by excess sterile inflammation.
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16
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Shi X, Wei M, Xu Z, Liu Y, Zhang M, Lv L, Wang Q. Vitamin C Inhibits Blood-Stage Plasmodium Parasites via Oxidative Stress. Front Cell Dev Biol 2021; 9:639944. [PMID: 34046404 PMCID: PMC8144511 DOI: 10.3389/fcell.2021.639944] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 04/01/2021] [Indexed: 11/29/2022] Open
Abstract
During the Plasmodium erythrocytic cycle, glucose is taken up by glucose transporters (GLUTs) in red blood cells (RBCs) and supplied to parasites via the Plasmodium hexose transporter. Here, we demonstrate that the glucose uptake pathway in infected RBCs (iRBCs) can be hijacked by vitamin C (Vc). GLUTs preferentially transport the oxidized form of Vc, which is subsequently reduced in the cytosol. Vc, which is expected to burden the intracellular reducing capacity, inhibits Plasmodium berghei and Plasmodium falciparum growth. Vc uptake is drastically increased in iRBCs, with a large proportion entering parasites. Increased absorption of Vc causes accumulation of reactive oxygen species, reduced ATP production, and elevated eryptosis in iRBCs and apoptosis in parasites. The level of oxidative stress induced by Vc is significantly higher in iRBCs than uninfected RBCs, not seen in chloroquine or artemisinin-treated iRBCs, and effective in inhibiting chloroquine or artemisinin-resistant parasites. These findings provide important insights into the drug sensitivity of Plasmodium.
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Affiliation(s)
- Xiaoyu Shi
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China
| | - Meng Wei
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China
| | - Zihao Xu
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China
| | - Ying Liu
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China
| | - Mujia Zhang
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China
| | - Li Lv
- Department of Endocrinology and Metabolism, Tianjin Medical University General Hospital, Tianjin, China
| | - Qian Wang
- Department of Immunology, School of Basic Medical Sciences, Key Laboratory of Immune Microenvironment and Diseases of Educational Ministry of China, Tianjin Key Laboratory of Cellular and Molecular Immunology, Tianjin Medical University, Tianjin, China.,National Laboratory of Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
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17
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Gonzalez-Menendez P, Romano M, Yan H, Deshmukh R, Papoin J, Oburoglu L, Daumur M, Dumé AS, Phadke I, Mongellaz C, Qu X, Bories PN, Fontenay M, An X, Dardalhon V, Sitbon M, Zimmermann VS, Gallagher PG, Tardito S, Blanc L, Mohandas N, Taylor N, Kinet S. An IDH1-vitamin C crosstalk drives human erythroid development by inhibiting pro-oxidant mitochondrial metabolism. Cell Rep 2021; 34:108723. [PMID: 33535038 PMCID: PMC9169698 DOI: 10.1016/j.celrep.2021.108723] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 11/26/2020] [Accepted: 01/12/2021] [Indexed: 12/12/2022] Open
Abstract
The metabolic changes controlling the stepwise differentiation of hematopoietic stem and progenitor cells (HSPCs) to mature erythrocytes are poorly understood. Here, we show that HSPC development to an erythroid-committed proerythroblast results in augmented glutaminolysis, generating alpha-ketoglutarate (αKG) and driving mitochondrial oxidative phosphorylation (OXPHOS). However, sequential late-stage erythropoiesis is dependent on decreasing αKG-driven OXPHOS, and we find that isocitrate dehydrogenase 1 (IDH1) plays a central role in this process. IDH1 downregulation augments mitochondrial oxidation of αKG and inhibits reticulocyte generation. Furthermore, IDH1 knockdown results in the generation of multinucleated erythroblasts, a morphological abnormality characteristic of myelodysplastic syndrome and congenital dyserythropoietic anemia. We identify vitamin C homeostasis as a critical regulator of ineffective erythropoiesis; oxidized ascorbate increases mitochondrial superoxide and significantly exacerbates the abnormal erythroblast phenotype of IDH1-downregulated progenitors, whereas vitamin C, scavenging reactive oxygen species (ROS) and reprogramming mitochondrial metabolism, rescues erythropoiesis. Thus, an IDH1-vitamin C crosstalk controls terminal steps of human erythroid differentiation.
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Affiliation(s)
- Pedro Gonzalez-Menendez
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France.
| | - Manuela Romano
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Hongxia Yan
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; New York Blood Center, New York, NY, USA
| | - Ruhi Deshmukh
- Cancer Research UK Beatson Institute, Glasgow G61 1BD, UK
| | - Julien Papoin
- The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | - Leal Oburoglu
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Marie Daumur
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Anne-Sophie Dumé
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Ira Phadke
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France; Pediatric Oncology Branch, NCI, CCR, NIH, Bethesda, MD, USA
| | - Cédric Mongellaz
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Xiaoli Qu
- New York Blood Center, New York, NY, USA
| | - Phuong-Nhi Bories
- Service d'Hématologie Biologique, Assistance Publique-Hôpitaux de Paris, Institut Cochin, Paris, France
| | - Michaela Fontenay
- Laboratory of Excellence GR-Ex, Paris 75015, France; Service d'Hématologie Biologique, Assistance Publique-Hôpitaux de Paris, Institut Cochin, Paris, France
| | - Xiuli An
- New York Blood Center, New York, NY, USA
| | - Valérie Dardalhon
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Marc Sitbon
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Valérie S Zimmermann
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France
| | - Patrick G Gallagher
- Departments of Pediatrics and Genetics, Yale University School of Medicine, New Haven, CT, USA
| | - Saverio Tardito
- Cancer Research UK Beatson Institute, Glasgow G61 1BD, UK; Institute of Cancer Sciences, University of Glasgow, Glasgow G61 1QH, UK
| | - Lionel Blanc
- The Feinstein Institute for Medical Research, Manhasset, NY, USA
| | | | - Naomi Taylor
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France; Pediatric Oncology Branch, NCI, CCR, NIH, Bethesda, MD, USA.
| | - Sandrina Kinet
- Institut de Génétique Moléculaire de Montpellier, Univ. Montpellier, CNRS, Montpellier, France; Laboratory of Excellence GR-Ex, Paris 75015, France.
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Abstract
Vitamin C (Vit C) is an ideal antioxidant as it is easily available, water soluble, very potent, least toxic, regenerates other antioxidants particularly Vit E, and acts as a cofactor for different enzymes. It has received much attention due to its ability in limiting reactive oxygen species, oxidative stress, and nitrosative stress, as well as it helps to maintain some of the normal metabolic functions of the cell. However, over 140 clinical trials using Vit C in different pathological conditions such as myocardial infarction, gastritis, diabetes, hypertension, stroke, and cancer have yielded inconsistent results. Such a divergence calls for new strategies to establish practical significance of Vit C in heart failure or even in its prevention. For a better understanding of Vit C functioning, it is important to revisit its transport across the cell membrane and subcellular interactions. In this review, we have highlighted some historical details of Vit C and its transporters in the heart with a particular focus on heart failure in cancer chemotherapy.
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Guizouarn H, Allegrini B. Erythroid glucose transport in health and disease. Pflugers Arch 2020; 472:1371-1383. [PMID: 32474749 DOI: 10.1007/s00424-020-02406-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/15/2020] [Accepted: 05/22/2020] [Indexed: 12/14/2022]
Abstract
Glucose transport is intimately linked to red blood cell physiology. Glucose is the unique energy source for these cells, and defects in glucose metabolism or transport activity are associated with impaired red blood cell morphology and deformability leading to reduced lifespan. In vertebrate erythrocytes, glucose transport is mediated by GLUT1 (in humans) or GLUT4 transporters. These proteins also account for dehydroascorbic acid (DHA) transport through erythrocyte membrane. The peculiarities of glucose transporters and the red blood cell pathologies involving GLUT1 are summarized in the present review.
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Affiliation(s)
- Hélène Guizouarn
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose, 28 av. Valrose, 06100, Nice, France.
| | - Benoit Allegrini
- Université Côte d'Azur, CNRS, Inserm, Institut de Biologie Valrose, 28 av. Valrose, 06100, Nice, France
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20
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Zezina E, Sercan‐Alp O, Herrmann M, Biesemann N. Glucose transporter 1 in rheumatoid arthritis and autoimmunity. WILEY INTERDISCIPLINARY REVIEWS-SYSTEMS BIOLOGY AND MEDICINE 2020; 12:e1483. [DOI: 10.1002/wsbm.1483] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/28/2020] [Accepted: 01/29/2020] [Indexed: 12/21/2022]
Affiliation(s)
- Ekaterina Zezina
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Oezen Sercan‐Alp
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Matthias Herrmann
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
| | - Nadine Biesemann
- Sanofi R&D Immunology and Inflammation Therapeutic Area Type 1/17 Inflammation and Arthritis Cluster, Industriepark Hoechst Frankfurt am Main Germany
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21
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Hornung TC, Biesalski HK. Glut-1 explains the evolutionary advantage of the loss of endogenous vitamin C-synthesis: The electron transfer hypothesis. EVOLUTION MEDICINE AND PUBLIC HEALTH 2019; 2019:221-231. [PMID: 31857900 PMCID: PMC6915226 DOI: 10.1093/emph/eoz024] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 07/30/2019] [Indexed: 12/27/2022]
Abstract
Introduction During evolution, some species including humans, monkeys and fruit bats lost the ability for ascorbic acid (AA) biosynthesis due to inactivation of the enzyme l-gulono-lactone oxidase (GLO) and subsequently became dependent on dietary vitamin C. There are four current hypotheses in relation to the benefit of vitamin C dependence in the context of adaptation and reproduction. Here we advance and test a new ‘electron transfer hypothesis’, which focusses on the role of the expression of glucose transporter 1 (Glut-1) in red blood cells (RBCs) in recycling vitamin C, thereby increasing the efficiency of micronutrient uptake. Methods To evaluate the benefit of Glut-1 expression, we determined vitamin C uptake into RBCs and potential release from two different species, humans with l-Gulono-lactone-oxidase (GLO-loss) and pigs with functional GLO. Results The oxidized form of vitamin C (dehydroascorbate, DHA) was transported into human RBCs via Glut-1. There was no transport of either the reduced (AA) or the oxidized vitamin in pig erythrocytes. Conclusion We propose that the transport of vitamin C increases an intracellular electron pool, which transfers electrons from intracellular ascorbate to extracellular substances like ascorbyl free radical or DHA, resulting in 100-fold smaller daily requirement of this essential redox sensitive micronutrient. This would be an advantage during seasonal changes of the availability from food and may be the key for the survival of individuals without vitamin C biosynthesis. Lay Summary 40 million years ago some individuals lost the ability to synthesize vitamin C. Why did they survive such as humans until now? Individuals with a specific glucose transporter Glut-1 on their erythrocytes which transports vitamin C need less and are protected from scarcity due to seasons and food competitors.
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Affiliation(s)
- Tabea C Hornung
- Department of Nutrition, University of Hohenheim, Garbenstrasse 30, Stuttgart 70593, Germany
| | - Hans-Konrad Biesalski
- Department of Nutrition, University of Hohenheim, Garbenstrasse 30, Stuttgart 70593, Germany
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22
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Abolhasani A, Biria D, Abolhasani H, Zarrabi A, Komeili T. Investigation of the Role of Glucose Decorated Chitosan and PLGA Nanoparticles as Blocking Agents to Glucose Transporters of Tumor Cells. Int J Nanomedicine 2019; 14:9535-9546. [PMID: 31824149 PMCID: PMC6900274 DOI: 10.2147/ijn.s228652] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Accepted: 11/19/2019] [Indexed: 01/11/2023] Open
Abstract
PURPOSE Glucose decorated PLGA and chitosan nanoparticles (GPNPs and GCNPs) have been developed to examine the possibility of preventing the facilitated glucose transport to the cells through blocking the glucose transporters (Gluts) overexpressed by tumor cells. METHODS The MTT assay was used to assess the cytotoxicity towards human colon tumor (HT-29) cells in 72 hrs. Fluorescence microscopy was employed to confirm the attachment of GPNPs to the cells. Moreover, the GPNPs effects on the apoptotic rate of HT-29 cells were analyzed. Finally, the expression levels of GLUT-1 and GLUT-4 by real-time polymerase chain reaction (RT-PCR) were assayed to investigate the response of HT-29 cells to blocking their Gluts by GPNPs. RESULTS The stability studies showed that the synthesized complexes were mostly stable (more than 80%) at various temperatures (4 to 40ºC) and pH (5.4 to 7.4) conditions. Results indicated that the survival rate of the cells was decreased to 43% and 46% after treatment with GCNPs and GPNPs, respectively. Also, the apoptosis assay results showed that the percentage of viable cells reduced to 47% after GPNPs treatment. These observations were justified by the specific interactions between the glucose terminals and the cells Gluts which resulted in blocking the entries of nutrients to the cells. It was revealed that the GLUT-1 mRNA expression after the first 24 h of treatment by GPNPs was upregulated to more than 145%, while the direction was reversed after 72 h (expression less than 45%), which coincided with the cells death. In the first 24 h, the glucose deprivation stimulated the expression of Glut-1 while the apoptotic enzymes expression was dominant at the end of 72 h treatment time. CONCLUSION Finally, it can be concluded that the glucose-nanoparticle complexes could be considered as promising agents in cancer therapy.
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Affiliation(s)
- Ahmad Abolhasani
- Department of Biotechnology, University of Isfahan, Isfahan, Iran
| | - Davoud Biria
- Department of Biotechnology, University of Isfahan, Isfahan, Iran
| | - Hoda Abolhasani
- Department of Physiology and Pharmacology, Qom University of Medical Sciences, Qom, Iran
| | - Ali Zarrabi
- Department of Biotechnology, University of Isfahan, Isfahan, Iran
| | - Tahereh Komeili
- Department of Physiology and Pharmacology, Qom University of Medical Sciences, Qom, Iran
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23
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Verma R, Haldar C. Expression of receptors for melatonin (MT1), thyroid hormone (TR-α), deiodinase (Dio-2), glucose transporters (GLUT-1 &4) and its relation with splenic cell survival (Bcl-2) of golden hamster, Mesocricetus auratus. BIOL RHYTHM RES 2019. [DOI: 10.1080/09291016.2018.1464632] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Rakesh Verma
- Department of Zoology, Banaras Hindu University, Varanasi, India
| | - Chandana Haldar
- Department of Zoology, Banaras Hindu University, Varanasi, India
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24
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Goto T, Ubukawa K, Kobayashi I, Sugawara K, Asanuma K, Sasaki Y, Guo YM, Takahashi N, Sawada K, Wakui H, Nunomura W. ATP produced by anaerobic glycolysis is essential for enucleation of human erythroblasts. Exp Hematol 2019; 72:14-26.e1. [PMID: 30797950 DOI: 10.1016/j.exphem.2019.02.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 02/13/2019] [Accepted: 02/18/2019] [Indexed: 11/16/2022]
Abstract
More than 2million human erythroblasts extrude their nuclei every second in bone marrow under hypoxic conditions (<7% O2). Enucleation requires specific signal transduction pathways and the local assembly of contractile actomyosin rings. However, the energy source driving these events has not yet been identified. We examined whether different O2 environments (hypoxic [5% O2] and normoxic [21% O2] conditions) affected human CD34+ cell erythroblast differentiation. We also investigated the regulatory mechanisms underlying energy production in erythroblasts during terminal differentiation under 5% or 21% O2 conditions. The results obtained revealed that the enucleation ratio and intracellular levels of adenosine triphosphate (ATP), lactate dehydrogenase (LDH) M3H, and hypoxia-inducible factor 1α in erythroblasts during terminal differentiation were higher under the 5% O2 condition than under the 21% O2 condition. We also found that the enzymatic inhibition of glyceraldehyde 3-phosphate dehydrogenase and LDH, key enzymes in anaerobic glycolysis, blocked the proliferation of colony-forming units-erythroid and enucleation of erythroblasts, and also reduced ATP levels in erythroblasts under both hypoxic and normoxic conditions. Under both conditions, phosphorylation of the Ser232, Ser293, and Ser300 residues in pyruvate dehydrogenase (inactive state of the enzyme) in erythroblasts was involved in regulating the pathway governing energy metabolism during erythroid terminal differentiation. This reaction may be mediated by pyruvate dehydrogenase kinase (PDK) 4, the major PDK isozyme expressed in erythroblasts undergoing enucleation. Collectively, these results suggest that ATP produced by anaerobic glycolysis is the main source of energy for human erythroblast enucleation in the hypoxic bone marrow environment.
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Affiliation(s)
- Tatsufumi Goto
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita, Japan
| | - Kumi Ubukawa
- Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan
| | - Isuzu Kobayashi
- Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan
| | - Kotomi Sugawara
- Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan
| | - Ken Asanuma
- Division of Radio Isotope, Bioscience Education and Research Support Center, Akita University, Akita, Japan
| | - Yumi Sasaki
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita, Japan
| | - Yong-Mei Guo
- Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan
| | - Naoto Takahashi
- Department of Hematology, Nephrology, and Rheumatology, Graduate School of Medicine, Akita University, Akita, Japan
| | | | - Hideki Wakui
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita, Japan.
| | - Wataru Nunomura
- Department of Life Science, Graduate School of Engineering Science, Akita University, Akita, Japan; Research Center for Engineering Science, Graduate School of Engineering Science, Akita University, Akita, Japan
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25
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Choi JW, Budzevich M, Wang S, Gage K, Estrella V, Gillies RJ. In vivo positron emission tomographic blood pool imaging in an immunodeficient mouse model using 18F-fluorodeoxyglucose labeled human erythrocytes. PLoS One 2019; 14:e0211012. [PMID: 30682160 PMCID: PMC6347438 DOI: 10.1371/journal.pone.0211012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 01/07/2019] [Indexed: 12/21/2022] Open
Abstract
99m-Technetium-labeled (99mTc) erythrocyte imaging with planar scintigraphy is widely used for evaluating both patients with occult gastrointestinal bleeding and patients at risk for chemotherapy-induced cardiotoxicity. While a number of alternative radionuclide-based blood pool imaging agents have been proposed, none have yet to achieve widespread clinical use. Here, we present both in vitro and small animal in vivo imaging evidence that the high physiological expression of the glucose transporter GLUT1 on human erythrocytes allows uptake of the widely available radiotracer 2-deoxy-2-(18F)fluoro-D-glucose (FDG), at a rate and magnitude sufficient for clinical blood pool positron emission tomographic (PET) imaging. This imaging technique is likely to be amenable to rapid clinical translation, as it can be achieved using a simple FDG labeling protocol, requires a relatively small volume of phlebotomized blood, and can be completed within a relatively short time period. As modern PET scanners typically have much greater count detection sensitivities than that of commonly used clinical gamma scintigraphic cameras, FDG-labeled human erythrocyte PET imaging may not only have significant advantages over 99mTc-labeled erythrocyte imaging, but may have other novel blood pool imaging applications.
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Affiliation(s)
- Jung W. Choi
- H. Lee Moffitt Cancer Center and Research Institute, Diagnostic Imaging, Tampa, Florida, United States of America
- H. Lee Moffitt Cancer Center and Research Institute, Department of Cancer Physiology, Tampa, Florida, United States of America
- * E-mail:
| | - Mikalai Budzevich
- H. Lee Moffitt Cancer Center and Research Institute, Department of Cancer Physiology, Tampa, Florida, United States of America
| | - Shaowei Wang
- University of South Florida, Department of Medical Engineering, Tampa, Florida, United States of America
| | - Kenneth Gage
- H. Lee Moffitt Cancer Center and Research Institute, Diagnostic Imaging, Tampa, Florida, United States of America
| | - Veronica Estrella
- H. Lee Moffitt Cancer Center and Research Institute, Department of Cancer Physiology, Tampa, Florida, United States of America
| | - Robert J. Gillies
- H. Lee Moffitt Cancer Center and Research Institute, Diagnostic Imaging, Tampa, Florida, United States of America
- H. Lee Moffitt Cancer Center and Research Institute, Department of Cancer Physiology, Tampa, Florida, United States of America
- H. Lee Moffitt Cancer Center and Research Institute, Program in Cancer Biology and Evolution, Tampa, Florida, United States of America
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26
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Wu S, Wu G, Wu H. Hemolytic jaundice induced by pharmacological dose ascorbic acid in glucose-6-phosphate dehydrogenase deficiency: A case report. Medicine (Baltimore) 2018; 97:e13588. [PMID: 30572463 PMCID: PMC6319863 DOI: 10.1097/md.0000000000013588] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
RATIONALE Hemolysis induced by high dose ascorbic acid (AA) in patients with G6PD deficiency has been reported, but is rare. To our knowledge, this is the first reported case of a male with G6PD deficiency, coexpressed with cholecystolithiasis and cholecystitis, who developed extreme hemolysis and hyperbilirubinemia after receiving pharmacological doses ascorbic acid infusion. PATIENT CONCERNS A 27-year-old man history with glucose-6-phosphate dehydrogenase deficiency was admitted to our hospital because of cholecystolithiasis and cholecystitis. He appeared with scleral jaundice and very deep colored urine after receiving pharmacological doses ascorbic acid infusion. DIAGNOSES Clinical findings when combined with his medical history and various laboratory results confirmed the diagnosis as hemolysis and hyperbilirubinemia induced by ascorbic acid. INTERVENTIONS The patient was treated with steroids, hepatoprotective drugs, and folic acid in addition avoidance of agents with known hemolysis risk (such as vitamin C). OUTCOMES As a result, the patient's symptoms from hemolytic jaundice improved, hemoglobin remained stable, and the patient was discharged 11 days later. LESSONS Clinicians should bear in mind the possibility that vitamin C exposure may result in hemolysis in patients with G6PD deficiency, especially in those with known severe disease.
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Affiliation(s)
- Shuxie Wu
- Xiangya School of Medicine, Central South University, Changsha
| | - Gao Wu
- Department of Pharmacy, The 411st Hospital of PLA
| | - Hanbin Wu
- Clinical Pharmacy, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
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27
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Wei M, Lu L, Sui W, Liu Y, Shi X, Lv L. Inhibition of GLUTs by WZB117 mediates apoptosis in blood-stage Plasmodium parasites by breaking redox balance. Biochem Biophys Res Commun 2018; 503:1154-1159. [DOI: 10.1016/j.bbrc.2018.06.134] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Accepted: 06/24/2018] [Indexed: 10/28/2022]
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Yan H, Hale J, Jaffray J, Li J, Wang Y, Huang Y, An X, Hillyer C, Wang N, Kinet S, Taylor N, Mohandas N, Narla A, Blanc L. Developmental differences between neonatal and adult human erythropoiesis. Am J Hematol 2018; 93:494-503. [PMID: 29274096 DOI: 10.1002/ajh.25015] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 12/20/2017] [Indexed: 02/04/2023]
Abstract
Studies of human erythropoiesis have relied, for the most part, on the in vitro differentiation of hematopoietic stem and progenitor cells (HSPC) from different sources. Here, we report that despite the common core erythroid program that exists between cord blood (CB)- and peripheral blood (PB)-HSPC induced toward erythroid differentiation in vitro, significant functional differences exist. We undertook a comparative analysis of human erythropoiesis using these two different sources of HSPC. Upon in vitro erythroid differentiation, CB-derived cells proliferated 4-fold more than PB-derived cells. However, CB-derived cells exhibited a delayed kinetics of differentiation, resulting in an increased number of progenitors, notably colony-forming unit (CFU-E). The phenotypes of early erythroid differentiation stages also differed between the two sources with a significantly higher percentage of IL3R- GPA- CD34+ CD36+ cells generated from PB- than CB-HSPCs. This subset was found to generate both burst-forming unit (BFU-E) and CFU-E colonies in colony-forming assays. To further understand the differences between CB- and PB-HSPC, cells at eight stages of erythroid differentiation were sorted from each of the two sources and their transcriptional profiles were compared. We document differences at the CD34, BFU-E, poly- and orthochromatic stages. Genes exhibiting the most significant differences in expression between HSPC sources clustered into cell cycle- and autophagy-related pathways. Altogether, our studies provide a qualitative and quantitative comparative analysis of human erythropoiesis, highlighting the impact of the developmental origin of HSPCs on erythroid differentiation.
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Affiliation(s)
- Hongxia Yan
- Red Cell Physiology Laboratory; New York Blood Center; New York New York 10065
| | - John Hale
- Red Cell Physiology Laboratory; New York Blood Center; New York New York 10065
| | - Julie Jaffray
- Red Cell Physiology Laboratory; New York Blood Center; New York New York 10065
| | - Jie Li
- Membrane Biology Laboratory; New York Blood Center; New York New York 10065
| | - Yaomei Wang
- Membrane Biology Laboratory; New York Blood Center; New York New York 10065
| | - Yumin Huang
- Membrane Biology Laboratory; New York Blood Center; New York New York 10065
| | - Xiuli An
- Membrane Biology Laboratory; New York Blood Center; New York New York 10065
| | - Christopher Hillyer
- Red Cell Physiology Laboratory; New York Blood Center; New York New York 10065
| | - Nan Wang
- Stanford University School of Medicine; Palo Alto California 94304
| | - Sandrina Kinet
- GREx, Institut de Génétique Moléculaire de Montpellier, University of Montpellier; CNRS Montpellier 34095 France
| | - Naomi Taylor
- GREx, Institut de Génétique Moléculaire de Montpellier, University of Montpellier; CNRS Montpellier 34095 France
| | - Narla Mohandas
- Red Cell Physiology Laboratory; New York Blood Center; New York New York 10065
| | - Anupama Narla
- Stanford University School of Medicine; Palo Alto California 94304
| | - Lionel Blanc
- Laboratory of Developmental Erythropoiesis; Center for Autoimmune, Musculoskeletal, and Hematopoietic Diseases, The Feinstein Institute for Medical Research; Manhasset New York 11030
- Department of Molecular Medicine and Pediatrics, Donald and Barbara Zucker School of Medicine at Hofstra Northwell; Hempstead New York 11549
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29
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Pu W, He L, Han X, Tian X, Li Y, Zhang H, Liu Q, Huang X, Zhang L, Wang QD, Yu Z, Yang X, Smart N, Zhou B. Genetic Targeting of Organ-Specific Blood Vessels. Circ Res 2018; 123:86-99. [PMID: 29764841 DOI: 10.1161/circresaha.118.312981] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 05/10/2018] [Accepted: 05/14/2018] [Indexed: 01/20/2023]
Abstract
RATIONALE Organs of the body require vascular networks to supply oxygen and nutrients and maintain physiological function. The blood vessels of different organs are structurally and functionally heterogeneous in nature. To more precisely dissect their distinct in vivo function in individual organs, without potential interference from off-site targets, it is necessary to genetically target them in an organ-specific manner. OBJECTIVE The objective of this study was to generate a genetic system that targets vascular endothelial cells in an organ- or tissue-specific manner and to exemplify the potential application of intersectional genetics for precise, target-specific gene manipulation in vivo. METHODS AND RESULTS We took advantage of 2 orthogonal recombination systems, Dre-rox and Cre-loxP, to create a genetic targeting system based on intersectional genetics. Using this approach, Cre activity was only detectable in cells that had expressed both Dre and Cre. Applying this new system, we generated a coronary endothelial cell-specific Cre (CoEC-Cre) and a brain endothelial cell-specific Cre (BEC-Cre). Through lineage tracing, gene knockout and overexpression experiments, we demonstrated that CoEC-Cre and BEC-Cre efficiently and specifically target blood vessels in the heart and brain, respectively. By deletion of vascular endothelial growth factor receptor 2 using BEC-Cre, we showed that vascular endothelial growth factor signaling regulates angiogenesis in the central nervous system and also controls the integrity of the blood-brain barrier. CONCLUSIONS We provide 2 examples to illustrate the use of intersectional genetics for more precise gene targeting in vivo, namely manipulation of genes in blood vessels of the heart and brain. More broadly, this system provides a valuable strategy for tissue-specific gene manipulation that can be widely applied to other fields of biomedical research.
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Affiliation(s)
- Wenjuan Pu
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Lingjuan He
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Ximeng Han
- Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; School of Life Science and Technology, Shanghai Tech University, China (X. Han, H.Z., B.Z.)
| | - Xueying Tian
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Yan Li
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Hui Zhang
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; School of Life Science and Technology, Shanghai Tech University, China (X. Han, H.Z., B.Z.)
| | - Qiaozhen Liu
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Xiuzhen Huang
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Libo Zhang
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.).,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.)
| | - Qing-Dong Wang
- Bioscience Heart Failure, Cardiovascular and Metabolic Diseases, IMED Biotech Unit, AstraZeneca, Gothenburg, Sweden (Q.-D.W.)
| | - Zhenyang Yu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Laboratory of Proteomics, Institute of Biotechnology, China (Z.Y., X.Y.)
| | - Xiao Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, National Center for Protein Sciences (Beijing), Beijing Institute of Lifeomics, Laboratory of Proteomics, Institute of Biotechnology, China (Z.Y., X.Y.)
| | - Nicola Smart
- British Heart Foundation Centre of Regenerative Medicine, Department of Physiology, Anatomy and Genetics, University of Oxford, United Kingdom (N.S.)
| | - Bin Zhou
- From the State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, University of Chinese Academy of Sciences (W.P., L.H., X.T., Y.L., H.Z., Q.L., X. Huang, L.Z., B.Z.) .,Key Laboratory of Nutrition and Metabolism, Institute for Nutritional Sciences (W.P., L.H., X.T., Y.L., Q.L., X. Huang, L.Z., B.Z.).,Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; School of Life Science and Technology, Shanghai Tech University, China (X. Han, H.Z., B.Z.).,Key Laboratory of Regenerative Medicine of Ministry of Education, Institute of Aging and Regenerative Medicine, Jinan University, Guangzhou, China (B.Z.)
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Park JH, Cho HJ, Kim DD. Poly((D,L)lactic-glycolic)acid-star glucose nanoparticles for glucose transporter and hypoglycemia-mediated tumor targeting. Int J Nanomedicine 2017; 12:7453-7467. [PMID: 29066894 PMCID: PMC5644567 DOI: 10.2147/ijn.s147668] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Poly((D,L)lactic-glycolic)acid-star glucose (PLGA-Glc) polymer-based nanoparticles (NPs) were fabricated for tumor-targeted delivery of docetaxel (DCT). NPs with an approximate mean diameter of 241 nm, narrow size distribution, negative zeta potential, and spherical shape were prepared. A sustained drug release pattern from the developed NPs was observed for 13 days. Moreover, drug release from PLGA-Glc NPs at acidic pH (endocytic compartments and tumor regions) was significantly improved compared with that observed at physiological pH (normal tissues and organs). DCT-loaded PLGA-Glc NPs (DCT/PLGA-Glc NPs) exhibited an enhanced antiproliferation efficiency rather than DCT-loaded PLGA NPs (DCT/PLGA NPs) in Hep-2 cells, which can be regarded as glucose transporters (GLUTs)-positive cells, at ≥50 ng/mL DCT concentration range. Under glucose-deprived (hypoglycemic) conditions, the cellular uptake efficiency of the PLGA-Glc NPs was higher in Hep-2 cells compared to that observed in PLGA NPs. Cy5.5-loaded NPs were prepared and injected into a Hep-2 tumor-xenografted mouse model for in vivo near-infrared fluorescence imaging. The PLGA-Glc NPs group exhibited higher fluorescence intensity in the tumor region than the PLGA NPs group. These results imply that the PLGA-Glc NPs have active tumor targeting abilities based on interactions with GLUTs and the hypoglycemic conditions in the tumor region. Therefore, the developed PLGA-Glc NPs may represent a promising tumor-targeted delivery system for anticancer drugs.
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Affiliation(s)
- Ju-Hwan Park
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul
| | - Hyun-Jong Cho
- College of Pharmacy, Kangwon National University, Chuncheon, Gangwon, Republic of Korea
| | - Dae-Duk Kim
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Seoul National University, Seoul
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Chemical Transport Knockout for Oxidized Vitamin C, Dehydroascorbic Acid, Reveals Its Functions in vivo. EBioMedicine 2017; 23:125-135. [PMID: 28851583 PMCID: PMC5605377 DOI: 10.1016/j.ebiom.2017.08.017] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 08/15/2017] [Accepted: 08/17/2017] [Indexed: 12/24/2022] Open
Abstract
Despite its transport by glucose transporters (GLUTs) in vitro, it is unknown whether dehydroascorbic acid (oxidized vitamin C, DHA) has any in vivo function. To investigate, we created a chemical transport knockout model using the vitamin C analog 6-bromo-ascorbate. This analog is transported on sodium-dependent vitamin C transporters but its oxidized form, 6-bromo-dehydroascorbic acid, is not transported by GLUTs. Mice (gulo−/−) unable to synthesize ascorbate (vitamin C) were raised on 6-bromo-ascorbate. Despite normal survival, centrifugation of blood produced hemolysis secondary to near absence of red blood cell (RBC) ascorbate/6-bromo-ascorbate. Key findings with clinical implications were that RBCs in vitro transported dehydroascorbic acid but not bromo-dehydroascorbic acid; RBC ascorbate in vivo was obtained only via DHA transport; ascorbate via DHA transport in vivo was necessary for RBC structural integrity; and internal RBC ascorbate was essential to maintain ascorbate plasma concentrations in vitro/in vivo. Red cells in vivo obtain vitamin C (ascorbate) by dehydroascorbic acid transport. Red blood cell ascorbate is necessary to maintain red blood cell structural integrity. Red blood cell ascorbate maintains external plasma ascorbate concentrations in vivo by transmembrane electron transfer.
In animals and humans, it is unknown whether the oxidized form of vitamin C, termed dehydroascorbic acid, has a physiologic purpose. Using a mouse model and a custom-synthesized vitamin C analog, we show that red blood cells obtain their vitamin C by transport of dehydroascorbic acid, instead of vitamin C itself. The transported material is reduced inside and has at least two physiologic functions. One is to maintain structural integrity of red blood cells, and the other is to maintain vitamin C in the liquid part of blood, plasma.
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Gras D, Cousin C, Kappeler C, Fung CW, Auvin S, Essid N, Chung BH, Da Costa L, Hainque E, Luton MP, Petit V, Vuillaumier-Barrot S, Boespflug-Tanguy O, Roze E, Mochel F. A simple blood test expedites the diagnosis of glucose transporter type 1 deficiency syndrome. Ann Neurol 2017; 82:133-138. [PMID: 28556183 PMCID: PMC5601183 DOI: 10.1002/ana.24970] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2017] [Revised: 04/22/2017] [Accepted: 05/13/2017] [Indexed: 11/10/2022]
Abstract
Glucose transporter type 1 (GLUT1) deficiency syndrome (GLUT1‐DS) leads to a wide range of neurological symptoms. Ketogenic diets are very efficient to control epilepsy and movement disorders. We tested a novel simple and rapid blood test in 30 patients with GLUT1‐DS with predominant movement disorders, 18 patients with movement disorders attributed to other genetic defects, and 346 healthy controls. We detected significantly reduced GLUT1 expression only on red blood cells from patients with GLUT1‐DS (23 patients; 78%), including patients with inconclusive genetic analysis. This test opens perspectives for the screening of GLUT1‐DS in children and adults with cognitive impairment, movement disorder, or epilepsy. Ann Neurol 2017;82:133–138
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Affiliation(s)
- Domitille Gras
- APHP, Robert-Debré University Hospital, Department of Paediatric Neurology and Metabolic Diseases, Paris, France
| | | | - Caroline Kappeler
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
| | - Cheuk-Wing Fung
- Queen Mary Hospital, Department of Pediatrics and Adolescent Medicine, Hong Kong
| | - Stéphane Auvin
- APHP, Robert-Debré University Hospital, Department of Paediatric Neurology and Metabolic Diseases, Paris, France.,Inserm U 1141, Université Paris Diderot, Sorbonne Paris Cité, DHU Protect, Paris, France
| | - Nouha Essid
- APHP, Raymond-Poincaré Hospital, Department of Neuropediatrics, Paris, France
| | - Brian Hy Chung
- Queen Mary Hospital, Department of Pediatrics and Adolescent Medicine, Hong Kong
| | - Lydie Da Costa
- APHP, Robert-Debré University Hospital, Laboratory of Hematology, Paris, France.,Inserm U 1134; LABEX Gr-Ex; Université Paris Diderot, Paris, France
| | - Elodie Hainque
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,APHP, Pitié-Salpêtrière University Hospital, Department of Neurology, Paris, France
| | - Marie-Pierre Luton
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
| | | | | | - Odile Boespflug-Tanguy
- APHP, Robert-Debré University Hospital, Department of Paediatric Neurology and Metabolic Diseases, Paris, France
| | - Emmanuel Roze
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,APHP, Pitié-Salpêtrière University Hospital, Department of Neurology, Paris, France
| | - Fanny Mochel
- Inserm U 1127, CNRS UMR 7225, Sorbonne Universités, UPMC Université Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.,APHP, Pitié-Salpêtrière University Hospital, Department of Genetics, Paris, France.,University Pierre and Marie Curie, Neurometabolic Research Group, Paris, France
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Wang C, Ye Y, Sun W, Yu J, Wang J, Lawrence DS, Buse JB, Gu Z. Red Blood Cells for Glucose-Responsive Insulin Delivery. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1606617. [PMID: 28267235 DOI: 10.1002/adma.201606617] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/23/2017] [Indexed: 05/18/2023]
Abstract
Glucose-responsive delivery of insulin mimicking the function of pancreatic β-cells to achieve meticulous control of blood glucose (BG) would revolutionize diabetes care. Here the authors report the development of a new glucose-responsive insulin delivery system based on the potential interaction between the glucose derivative-modified insulin (Glc-Insulin) and glucose transporters on erythrocytes (or red blood cells, RBCs) membrane. After being conjugated with the glucosamine, insulin can efficiently bind to RBC membranes. The binding is reversible in the setting of hyperglycemia, resulting in fast release of insulin and subsequent drop of BG level in vivo. The delivery vehicle can be further simplified utilizing injectable polymeric nanocarriers coated with RBC membrane and loaded with Glc-Insulin. The described work is the first demonstration of utilizing RBC membrane to achieve smart insulin delivery with fast responsiveness.
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Affiliation(s)
- Chao Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Yanqi Ye
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Wujin Sun
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jicheng Yu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Jingqiang Wang
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - David S Lawrence
- Department of Chemistry, University of North Carolina, Chapel Hill, NC, 27599, USA
- Division of Chemical Biology and Medicinal Chemistry, University of North Carolina, Chapel Hill, NC, 27599, USA
- Department of Pharmacology, University of North Carolina, Chapel Hill, NC, 27599, USA
| | - John B Buse
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, 27599, USA
| | - Zhen Gu
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Raleigh, NC, 27695, USA
- Division of Molecular Pharmaceutics and Center for Nanotechnology in Drug Delivery, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
- Department of Medicine, University of North Carolina School of Medicine, Chapel Hill, NC, 27599, USA
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35
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Belloum Y, Rannou-Bekono F, Favier FB. Cancer-induced cardiac cachexia: Pathogenesis and impact of physical activity (Review). Oncol Rep 2017; 37:2543-2552. [PMID: 28393216 DOI: 10.3892/or.2017.5542] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 01/30/2017] [Indexed: 11/06/2022] Open
Abstract
Cachexia is a wasting syndrome observed in many patients suffering from several chronic diseases including cancer. In addition to the progressive loss of skeletal muscle mass, cancer cachexia results in cardiac function impairment. During the severe stage of the disease, patients as well as animals bearing cancer cells display cardiac atrophy. Cardiac energy metabolism is also impeded with disruption of mitochondrial homeostasis and reduced oxidative capacity, although the available data remain equivocal. The release of inflammatory cytokines by tumor is a key mechanism in the initiation of heart failure. Oxidative stress, which results from the combination of chemotherapy, inadequate antioxidant consumption and chronic inflammation, will further foster heart failure. Protein catabolism is due to the concomitant activation of proteolytic systems and inhibition of protein synthesis, both processes being triggered by the deactivation of the Akt/mammalian target of rapamycin pathway. The reduction in oxidative capacity involves AMP-activated protein kinase and peroxisome proliferator-activated receptor gamma coactivator 1α dysregulation. The nuclear factor-κB transcription factor plays a prominent role in the coordination of these alterations. Physical exercise appears as an interesting non-pharmaceutical way to counteract cancer cachexia-induced-heart failure. Indeed, aerobic training has anti-inflammatory effects, increases anti-oxidant defenses, prevents atrophy and promotes oxidative metabolism. The present review points out the importance of better understanding the concurrent structural and metabolic changes within the myocardium during cancer and the protective effects of exercise against cardiac cachexia.
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Affiliation(s)
| | - Françoise Rannou-Bekono
- EA 1274, Laboratoire 'Mouvement, Sport, Santé', Université de Rennes 2-ENS Rennes, Bruz 35170, France
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Metabolic regulation of hematopoietic stem cell commitment and erythroid differentiation. Curr Opin Hematol 2016; 23:198-205. [PMID: 26871253 DOI: 10.1097/moh.0000000000000234] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE OF REVIEW Hematopoietic stem cell (HSC) renewal and lineage differentiation are finely tuned processes, regulated by cytokines, transcription factors and cell-cell contacts. However, recent studies have shown that fuel utilization also conditions HSC fate. This review focuses on our current understanding of the metabolic pathways that govern HSC self-renewal, commitment and specification to the erythroid lineage. RECENT FINDINGS HSCs reside in a hypoxic bone marrow niche that favors anaerobic glycolysis. Although this metabolic pathway is required for stem cell maintenance, other pathways also play critical roles. Fatty acid oxidation preserves HSC self-renewal by promoting asymmetric division, whereas oxidative phosphorylation induces lineage commitment. Committed erythroid progenitors support the production of 2.4 million erythrocytes per second in human adults via a synchronized regulation of iron, amino acid and glucose metabolism. Iron is indispensable for heme biosynthesis in erythroblasts; a process finely coordinated by at least two hormones, hepcidin and erythroferrone, together with multiple cell surface iron transporters. Furthermore, hemoglobin production is promoted by amino acid-induced mTOR signaling. Erythropoiesis is also strictly dependent on glutamine metabolism; under conditions where glutaminolysis is inhibited, erythropoietin-signaled progenitors are diverted to a myelomonocytic fate. Indeed, the utilization of both glutamine and glucose in de-novo nucleotide biosynthesis is a sine qua non for erythroid differentiation. SUMMARY Diverse metabolic networks function in concert with transcriptional, translational and epigenetic programs to regulate HSC potential and orient physiological as well as pathological erythroid differentiation.
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37
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Red blood cells: Supercarriers for drugs, biologicals, and nanoparticles and inspiration for advanced delivery systems. Adv Drug Deliv Rev 2016; 106:88-103. [PMID: 26941164 DOI: 10.1016/j.addr.2016.02.007] [Citation(s) in RCA: 234] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 12/19/2022]
Abstract
Red blood cells (RBCs) constitute a unique drug delivery system as a biologic or hybrid carrier capable of greatly enhancing pharmacokinetics, altering pharmacodynamics (for example, by changing margination within the intravascular space), and modulating immune responses to appended cargoes. Strategies for RBC drug delivery systems include internal and surface loading, and the latter can be performed both ex vivo and in vivo. A relatively new avenue for RBC drug delivery is their application as a carrier for nanoparticles. Efforts are also being made to incorporate features of RBCs in nanocarriers to mimic their most useful aspects, such as long circulation and stealth features. RBCs have also recently been explored as carriers for the delivery of antigens for modulation of immune response. Therefore, RBC-based drug delivery systems represent supercarriers for a diverse array of biomedical interventions, and this is reflected by several industrial and academic efforts that are poised to enter the clinical realm.
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Abstract
Neonatal anemia is a frequent occurrence in neonatal intensive care units. Red blood cell transfusion criteria in case of blood loss are clearly defined but optimal hemoglobin or hematocrit thresholds of transfusion for anemia due to decreased production or increased destruction are less evident. This review focuses on the causes of anemia in the newborn period and the most recent evidence-based treatment options, including transfusion and erythropoiesis-stimulating agents.
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Affiliation(s)
- Raffaella Colombatti
- Clinic of Pediatric Hematology Oncology, Department of Child and Maternal Health, Azienda Ospedaliera - University of Padova, Padova, Italy.
| | - Laura Sainati
- Clinic of Pediatric Hematology Oncology, Department of Child and Maternal Health, Azienda Ospedaliera - University of Padova, Padova, Italy
| | - Daniele Trevisanuto
- Neonatology Intensive Care Unit, Department of Child and Maternal Health, Azienda Ospedaliera - University of Padova, Padova, Italy
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Azouzi S, Collec E, Mohandas N, An X, Colin Y, Le Van Kim C. The human Kell blood group binds the erythroid 4.1R protein: new insights into the 4.1R-dependent red cell membrane complex. Br J Haematol 2015; 171:862-71. [PMID: 26455906 DOI: 10.1111/bjh.13778] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2015] [Accepted: 07/29/2015] [Indexed: 12/21/2022]
Abstract
Protein 4.1R plays an important role in maintaining the mechanical properties of the erythrocyte membrane. We analysed the expression of Kell blood group protein in erythrocytes from a patient with hereditary elliptocytosis associated with complete 4.1R deficiency (4.1(-) HE). Flow cytometry and Western blot analyses revealed a severe reduction of Kell. In vitro pull down and co-immunoprecipitation experiments from erythrocyte membranes showed a direct interaction between Kell and 4.1R. Using different recombinant domains of 4.1R and the cytoplasmic domain of Kell, we demonstrated that the R(46) R motif in the juxta-membrane region of Kell binds to lobe B of the 4.1R FERM domain. We also observed that 4.1R deficiency is associated with a reduction of XK and DARC (also termed ACKR1) proteins, the absence of the glycosylated form of the urea transporter B and a slight decrease of band 3. The functional alteration of the 4.1(-) HE erythrocyte membranes was also determined by measuring various transport activities. We documented a slower rate of HCO3 (-) /Cl(-) exchange, but normal water and ammonia transport across erythrocyte membrane in the absence of 4.1. These findings provide novel insights into the structural organization of blood group antigen proteins into the 4.1R complex of the human red cell membrane.
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Affiliation(s)
- Slim Azouzi
- Institut National de la Transfusion Sanguine, Paris, France.,Inserm, UMR_S1134, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Laboratory of Excellence GR-Ex, New York, NY, USA
| | - Emmanuel Collec
- Institut National de la Transfusion Sanguine, Paris, France.,Inserm, UMR_S1134, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Laboratory of Excellence GR-Ex, New York, NY, USA
| | | | - Xiuli An
- New York Blood Center, New York, NY, USA
| | - Yves Colin
- Institut National de la Transfusion Sanguine, Paris, France.,Inserm, UMR_S1134, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Laboratory of Excellence GR-Ex, New York, NY, USA
| | - Caroline Le Van Kim
- Institut National de la Transfusion Sanguine, Paris, France.,Inserm, UMR_S1134, Paris, France.,Université Paris Diderot, Sorbonne Paris Cité, Paris, France.,Laboratory of Excellence GR-Ex, New York, NY, USA
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40
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Tu H, Li H, Wang Y, Niyyati M, Wang Y, Leshin J, Levine M. Low Red Blood Cell Vitamin C Concentrations Induce Red Blood Cell Fragility: A Link to Diabetes Via Glucose, Glucose Transporters, and Dehydroascorbic Acid. EBioMedicine 2015; 2:1735-50. [PMID: 26870799 PMCID: PMC4740302 DOI: 10.1016/j.ebiom.2015.09.049] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 09/25/2015] [Accepted: 09/28/2015] [Indexed: 12/11/2022] Open
Abstract
Strategies to prevent diabetic microvascular angiopathy focus on the vascular endothelium. Because red blood cells (RBCs) are less deformable in diabetes, we explored an original concept linking decreased RBC deformability to RBC ascorbate and hyperglycemia. We characterized ascorbate concentrations from human and mouse RBCs and plasma, and showed an inverse relationship between RBC ascorbate concentrations and deformability, measured by osmotic fragility. RBCs from ascorbate deficient mice were osmotically sensitive, appeared as spherocytes, and had decreased β-spectrin. These aberrancies reversed with ascorbate repletion in vivo. Under physiologic conditions, only ascorbate's oxidation product dehydroascorbic acid (DHA), a substrate for facilitated glucose transporters, was transported into mouse and human RBCs, with immediate intracellular reduction to ascorbate. In vitro, glucose inhibited entry of physiologic concentrations of dehydroascorbic acid into mouse and human RBCs. In vivo, plasma glucose concentrations in normal and diabetic mice and humans were inversely related to respective RBC ascorbate concentrations, as was osmotic fragility. Human RBC β-spectrin declined as diabetes worsened. Taken together, hyperglycemia in diabetes produced lower RBC ascorbate with increased RBC rigidity, a candidate to drive microvascular angiopathy. Because glucose transporter expression, DHA transport, and its inhibition by glucose differed for mouse versus human RBCs, human experimentation is indicated.
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Key Words
- 3-O-MG, 3-O-methylglucose
- AA, ascorbic acid
- Ascorbic Acid
- DHA, dehydroascorbic acid
- Dehydroascorbic Acid
- Diabetes
- GLUT, facilitated glucose transporter
- Glucose Transport
- Gulo-/-, gulonolactone oxidase knockout mouse unable to synthesize ascorbate
- PBS, phosphate buffered saline
- RBCs, red blood cells
- RIPA, Western blot cell lysis buffer
- Red Blood Cells
- SVCT, sodium-dependent vitamin C transporter
- TCEP, Tris(2-carboxyethyl)phosphine
- WT, wildtype mouse
- β-Spectrin
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Affiliation(s)
- Hongbin Tu
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Hongyan Li
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Yu Wang
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Mahtab Niyyati
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Yaohui Wang
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Jonathan Leshin
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
| | - Mark Levine
- Molecular and Clinical Nutrition Section, Digestive Diseases Branch, Intramural Research Program, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health (NIDDK, NIH)
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41
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Fontes JA, Banerjee U, Iazbik MC, Marín LM, Couto CG, Palmer AF. Effect of ascorbic acid on storage of Greyhound erythrocytes. Am J Vet Res 2015; 76:789-800. [PMID: 26309107 DOI: 10.2460/ajvr.76.9.789] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To assess changes in biochemical and biophysical properties of canine RBCs during cold (1° to 6°C) storage in a licensed RBC additive solution (the RBC preservation solution designated AS-1) supplemented with ascorbic acid. SAMPLE Blood samples from 7 neutered male Greyhounds; all dogs had negative results when tested for dog erythrocyte antigen 1.1. PROCEDURES Blood was collected into citrate-phosphate-dextrose and stored in AS-1. Stored RBCs were supplemented with 7.1mM ascorbic acid or with saline (0.9% NaCl) solution (control samples). Several biochemical and biophysical properties of RBCs were measured, including percentage hemolysis, oxygen-hemoglobin equilibrium, and the kinetic rate constants for O2 dissociation, carbon monoxide association, and nitric oxide dioxygenation. RESULTS Greyhound RBCs stored in AS-1 supplemented with ascorbic acid did not have significantly decreased hemolysis, compared with results for the control samples, during the storage period. CONCLUSIONS AND CLINICAL RELEVANCE In this study, ascorbic acid did not reduce hemolysis during storage. Several changes in stored canine RBCs were identified as part of the hypothermic storage lesion.
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Peric D, Barragan I, Giraud-Triboult K, Egesipe AL, Meyniel-Schicklin L, Cousin C, Lotteau V, Petit V, Touhami J, Battini JL, Sitbon M, Pinset C, Ingelman-Sundberg M, Laustriat D, Peschanski M. Cytostatic Effect of Repeated Exposure to Simvastatin: A Mechanism for Chronic Myotoxicity Revealed by the Use of Mesodermal Progenitors Derived from Human Pluripotent Stem Cells. Stem Cells 2015; 33:2936-48. [DOI: 10.1002/stem.2107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 06/06/2015] [Indexed: 12/13/2022]
Affiliation(s)
- Delphine Peric
- INSERM U861; I-Stem, Evry Cedex Paris France
- UEVE U861; I-Stem, Evry Cedex Paris France
| | - Isabel Barragan
- Department of Physiology and Pharmacology; Karolinska Institute; Stockholm Sweden
| | | | - Anne-Laure Egesipe
- INSERM U861; I-Stem, Evry Cedex Paris France
- UEVE U861; I-Stem, Evry Cedex Paris France
| | - Laurène Meyniel-Schicklin
- CIRI, International Center for Infectiology Research; Université de Lyon; Lyon France
- INSERM U1111; Lyon France
| | | | - Vincent Lotteau
- CIRI, International Center for Infectiology Research; Université de Lyon; Lyon France
- INSERM U1111; Lyon France
| | | | - Jawida Touhami
- Institut de Génétique Moléculaire de Montpellier, CNRS, UMR5535; Université de Montpellier; Montpellier France
| | - Jean-Luc Battini
- Institut de Génétique Moléculaire de Montpellier, CNRS, UMR5535; Université de Montpellier; Montpellier France
| | - Marc Sitbon
- Institut de Génétique Moléculaire de Montpellier, CNRS, UMR5535; Université de Montpellier; Montpellier France
| | - Christian Pinset
- INSERM U861; I-Stem, Evry Cedex Paris France
- UEVE U861; I-Stem, Evry Cedex Paris France
| | | | | | - Marc Peschanski
- INSERM U861; I-Stem, Evry Cedex Paris France
- UEVE U861; I-Stem, Evry Cedex Paris France
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43
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Hexige S, Ardito-Abraham CM, Wu Y, Wei Y, Fang Y, Han X, Li J, Zhou P, Yi Q, Maitra A, Liu JO, Tuveson DA, Lou W, Yu L. Identification of novel vascular projections with cellular trafficking abilities on the microvasculature of pancreatic ductal adenocarcinoma. J Pathol 2015; 236:142-154. [PMID: 25561062 PMCID: PMC5089710 DOI: 10.1002/path.4506] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2014] [Revised: 12/08/2014] [Accepted: 12/30/2014] [Indexed: 12/12/2022]
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is a nearly lethal neoplasm. It is a remarkably stroma-rich, vascular-poor and hypo-perfused tumour, which prevents efficient drug delivery. Paradoxically, the neoplastic cells have robust glucose uptake, suggesting that the microvasculature has adopted an alternative method for nutrient uptake and cellular trafficking. Using adapted thick tumour section immunostaining and three-dimensional (3D) construction imaging in human tissue samples, we identified an undiscovered feature of the mature microvasculature in advanced PDAC tumours; long, hair-like projections on the basal surface of microvessels that we refer to as 'basal microvilli'. Functionally, these basal microvilli have an actin-rich cytoskeleton and endocytic and exocytic properties, and contain glucose transporter-1 (GLUT-1)-positive vesicles. Clinically, as demonstrated by PET-CT, the tumour microvasculature with the longest and most abundant basal microvilli correlated with high glucose uptake of the PDAC tumour itself. In addition, these basal microvilli were found in regions of the tumour with low GLUT-1 expression, suggesting that their presence could be dependent upon the glucose concentration in the tumour milieu. Similar microvasculature features were also observed in a K-Ras-driven model of murine PDAC. Altogether, these basal microvilli mark a novel pathological feature of PDAC microvasculature. Because basal microvilli are pathological features with endo- and exocytic properties, they may provide a non-conventional method for cellular trafficking in PDAC tumours.
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Affiliation(s)
- Saiyin Hexige
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, People's Republic of China
| | | | - Yanhua Wu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, People's Republic of China
| | - Youheng Wei
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, People's Republic of China
| | - Yuan Fang
- Cold Spring Harbor Laboratory, New York, NY11724, United States of America
| | - Xu Han
- Cold Spring Harbor Laboratory, New York, NY11724, United States of America
| | - Jianang Li
- Cold Spring Harbor Laboratory, New York, NY11724, United States of America
| | - Ping Zhou
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, People's Republic of China
| | - Qing Yi
- General Surgery Department, Zhongshan Hospital, Fudan University, Shanghai, 20032, People's Republic of China
| | - Anirban Maitra
- Cleveland Clinic, Lerner Research Institute, Cleveland, Ohio, 44195
- Department of Pathology, The University of Texas MD Anderson Cancer Center
| | - Jun O Liu
- Departments of Pharmacology and Oncology, Johns Hopkins School of Medicine, MD 21205, United States of America
| | - David A Tuveson
- Cold Spring Harbor Laboratory, New York, NY11724, United States of America
| | - Wenhui Lou
- Cold Spring Harbor Laboratory, New York, NY11724, United States of America
| | - Long Yu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai, 200433, People's Republic of China
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Salabei JK, Lorkiewicz PK, Holden CR, Li Q, Hong KU, Bolli R, Bhatnagar A, Hill BG. Glutamine Regulates Cardiac Progenitor Cell Metabolism and Proliferation. Stem Cells 2015; 33:2613-27. [PMID: 25917428 DOI: 10.1002/stem.2047] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 03/08/2015] [Accepted: 03/29/2015] [Indexed: 12/27/2022]
Abstract
Autologous transplantation of cardiac progenitor cells (CPCs) alleviates myocardial dysfunction in the damaged heart; however, the mechanisms that contribute to their reparative qualities remain poorly understood. In this study, we examined CPC metabolism to elucidate the metabolic pathways that regulate their proliferative capacity. In complete growth medium, undifferentiated CPCs isolated from adult mouse heart proliferated rapidly (Td = 13.8 hours). CPCs expressed the Glut1 transporter and their glycolytic rate was increased by high extracellular glucose (Glc) concentration, in the absence of insulin. Although high Glc concentrations did not stimulate proliferation, glutamine (Gln) increased CPC doubling time and promoted survival under conditions of oxidative stress. In comparison with Glc, pyruvate (Pyr) or BSA-palmitate, Gln, when provided as the sole metabolic substrate, increased ATP-linked and uncoupled respiration. Although fatty acids were not used as respiratory substrates when present as a sole carbon source, Gln-induced respiration was doubled in the presence of BSA-palmitate, suggesting that Gln stimulates fatty acid oxidation. Additionally, Gln promoted rapid phosphorylation of the mTORC1 substrate, p70S6k, as well as retinoblastoma protein, followed by induction of cyclin D1 and cdk4. Inhibition of either mTORC1 or glutaminolysis was sufficient to diminish CPC proliferation, and provision of cell permeable α-ketoglutarate in the absence of Gln increased both respiration and cell proliferation, indicating a key role of Gln anaplerosis in cell growth. These findings suggest that Gln, by enhancing mitochondrial function and stimulating mTORC1, increases CPC proliferation, and that interventions to increase Gln uptake or oxidation may improve CPC therapy.
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Affiliation(s)
- Joshua K Salabei
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA
| | - Pawel K Lorkiewicz
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA
| | - Candice R Holden
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA.,Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky, USA
| | - Qianhong Li
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Kyung U Hong
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA
| | - Roberto Bolli
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA.,Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky, USA
| | - Aruni Bhatnagar
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA.,Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky, USA.,Department of Biochemistry and Molecular Biology, University of Louisville, Louisville, Kentucky, USA
| | - Bradford G Hill
- Department of Medicine, Institute of Molecular Cardiology, University of Louisville, Louisville, Kentucky, USA.,Department of Medicine, Diabetes and Obesity Center, University of Louisville, Louisville, Kentucky, USA.,Department of Physiology and Biophysics, University of Louisville, Louisville, Kentucky, USA.,Department of Biochemistry and Molecular Biology, University of Louisville, Louisville, Kentucky, USA
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Satchwell TJ, Bell AJ, Toye AM. The sorting of blood group active proteins during enucleation. ISBT SCIENCE SERIES 2015; 10:163-168. [PMID: 26640516 PMCID: PMC4668593 DOI: 10.1111/voxs.12127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Enucleation represents the critical stage during red blood cell development when the nucleus is extruded from an orthochromatic erythroblast in order to generate a nascent immature reticulocyte. Extrusion of the nucleus results in loss of a proportion of the erythroblast plasma membrane, which surrounds the nucleus, the bulk of the endoplasmic reticulum and a small region of cytoplasm. For this reason enucleation provides an important point in erythroblast differentiation at which proteins not required for the function of the erythrocyte can be lost, whilst those that are important for the structure-function properties of the mature erythrocyte must be efficiently retained in the reticulocyte plasma membrane. Disturbances in protein distribution during enucleation are envisaged to occur during human diseases such as Hereditary Spherocytosis. This article will discuss the current knowledge of erythroblast enucleation in the context of retention and loss of proteins that display antigenic blood group sites and that exist within multiprotein complexes within the erythrocyte membrane.
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Affiliation(s)
- Timothy J. Satchwell
- School of Biochemistry, Medical Sciences Building, University Walk, Bristol BS8 1TD
- Bristol Institute of Transfusion Sciences, NHS Blood and Transplant, Filton, Bristol
| | - Amanda J. Bell
- School of Biochemistry, Medical Sciences Building, University Walk, Bristol BS8 1TD
| | - Ashley M. Toye
- School of Biochemistry, Medical Sciences Building, University Walk, Bristol BS8 1TD
- Bristol Institute of Transfusion Sciences, NHS Blood and Transplant, Filton, Bristol
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46
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Tang HY, Ho HY, Wu PR, Chen SH, Kuypers FA, Cheng ML, Chiu DTY. Inability to maintain GSH pool in G6PD-deficient red cells causes futile AMPK activation and irreversible metabolic disturbance. Antioxid Redox Signal 2015; 22:744-59. [PMID: 25556665 PMCID: PMC4361223 DOI: 10.1089/ars.2014.6142] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
AIMS Glucose 6-phosphate dehydrogenase (G6PD) is essential for maintenance of nicotinamide dinucleotide hydrogen phosphate (NADPH) levels and redox homeostasis. A number of drugs, such as antimalarial drugs, act to induce reactive oxygen species and hemolytic crisis in G6PD-deficient patients. We used diamide (DIA) to mimic drug-induced oxidative stress and studied how these drugs affect cellular metabolism using a metabolomic approach. RESULTS There are a few differences in metabolome between red blood cells (RBCs) from normal and G6PD-deficient individuals. DIA causes modest changes in normal RBC metabolism. In contrast, there are significant changes in various biochemical pathways, namely glutathione (GSH) metabolism, purine metabolism, and glycolysis, in G6PD-deficient cells. GSH depletion is concomitant with a shift in energy metabolism. Adenosine monophosphate (AMP) and adenosine diphosphate (ADP) accumulation activates AMP protein kinase (AMPK) and increases entry of glucose into glycolysis. However, inhibition of pyruvate kinase (PK) reduces the efficacy of energy production. Metabolic changes and protein oxidation occurs to a greater extent in G6PD-deficient RBCs than in normal cells, leading to severe irreversible loss of deformability of the former. INNOVATION AND CONCLUSION Normal and G6PD-deficient RBCs differ in their responses to oxidants. Normal cells have adequate NADPH regeneration for maintenance of GSH pool. In contrast, G6PD-deficient cells are unable to regenerate enough NADPH under a stressful situation, and switch to biosynthetic pathway for GSH supply. Rapid GSH exhaustion causes energy crisis and futile AMPK activation. Our findings suggest that drug-induced oxidative stress differentially affects metabolism and metabolite signaling in normal and G6PD-deficient cells. It also provides an insight into the pathophysiology of acute hemolytic anemia in G6PD-deficient patients.
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Affiliation(s)
- Hsiang-Yu Tang
- 1 Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University , Tao-yuan, Taiwan
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47
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Wilkins LE, Phillips DJ, Deller RC, Davies GL, Gibson MI. Synthesis and characterisation of glucose-functional glycopolymers and gold nanoparticles: study of their potential interactions with ovine red blood cells. Carbohydr Res 2015; 405:47-54. [DOI: 10.1016/j.carres.2014.09.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 09/24/2014] [Accepted: 09/26/2014] [Indexed: 10/24/2022]
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48
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Shao K, Zhang Y, Ding N, Huang S, Wu J, Li J, Yang C, Leng Q, Ye L, Lou J, Zhu L, Jiang C. Functionalized nanoscale micelles with brain targeting ability and intercellular microenvironment biosensitivity for anti-intracranial infection applications. Adv Healthc Mater 2015; 4:291-300. [PMID: 25124929 DOI: 10.1002/adhm.201400214] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 06/16/2014] [Indexed: 01/28/2023]
Abstract
Due to complication factors such as blood-brain barrier (BBB), integrating high efficiency of brain target ability with specific cargo releasing into one nanocarrier seems more important. A brain targeting nanoscale system is developed using dehydroascorbic acid (DHA) as targeting moiety. DHA has high affinity with GLUT1 on BBB. More importantly, the GLUT1 transportation of DHA represents a "one-way" accumulative priority from blood into brain. The artificial micelles are fabricated by a disulfide linkage, forming a bio-responsive inner barrier, which can maintain micelles highly stable in circulation and shield the leakage of entrapped drug before reaching the targeting cells. The designed micelles can cross BBB and be further internalized by brain cells. Once within the cells, the drug release can be triggered by high intracellular level of glutathione (GSH). Itraconazole (ITZ) is selected as the model drug because of its poor brain permeability and low stability in blood. It demonstrates that the functionalized nanoscale micelles can achieve highly effective direct drug delivery to targeting site. Based on the markedly increased stability in blood circulation and improved brain delivery efficiency of ITZ, DHA-modified micelles show highly effective in anti-intracranial infection. Therefore, this smart nanodevice shows a promising application for the treatment of brain diseases.
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Affiliation(s)
- Kun Shao
- Department of Pharmaceutics; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
| | - Yu Zhang
- Department of Pharmaceutics; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
| | - Ning Ding
- Department of Medical Chemistry; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
| | - Shixian Huang
- Department of Pharmaceutics; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
| | - Jiqin Wu
- Department of Infectious Diseases; Huashan Hospital; Fudan University; 12 Urumqi Middle Road Shanghai 200040 China
| | - Jianfeng Li
- Department of Pharmaceutics; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
| | - Chunfu Yang
- Key Laboratory of Molecular Virology and Immunology; Institut Pasteur of Shanghai; Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; 411 Hefei Road Shanghai 200031 China
| | - Qibin Leng
- Key Laboratory of Molecular Virology and Immunology; Institut Pasteur of Shanghai; Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; 411 Hefei Road Shanghai 200031 China
| | - Liya Ye
- Institute of Clinical Medical Sciences; China-Japan Friendship Hospital; The ministry of Health; 2 East Yinghua Road Beijing 100029 China
| | - Jinning Lou
- Institute of Clinical Medical Sciences; China-Japan Friendship Hospital; The ministry of Health; 2 East Yinghua Road Beijing 100029 China
| | - Liping Zhu
- Department of Infectious Diseases; Huashan Hospital; Fudan University; 12 Urumqi Middle Road Shanghai 200040 China
| | - Chen Jiang
- Department of Pharmaceutics; School of Pharmacy; Fudan University; 826 Zhangheng Road Shanghai 201203 China
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Collicutt NB, Garner B, Berghaus RD, Camus MS, Hart K. Effect of delayed serum separation and storage temperature on serum glucose concentration in horse, dog, alpaca, and sturgeon. Vet Clin Pathol 2014; 44:120-7. [DOI: 10.1111/vcp.12217] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nancy B. Collicutt
- Department of Pathology; College of Veterinary Medicine; University of Georgia; Athens GA USA
| | - Bridget Garner
- Department of Pathology; College of Veterinary Medicine; University of Georgia; Athens GA USA
| | - Roy D. Berghaus
- Department of Population Health; College of Veterinary Medicine; University of Georgia; Athens GA USA
| | - Melinda S. Camus
- Department of Pathology; College of Veterinary Medicine; University of Georgia; Athens GA USA
| | - Kelsey Hart
- Department of Large Animal Medicine; College of Veterinary Medicine; University of Georgia; Athens GA USA
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50
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Gwak H, Haegeman G, Tsang BK, Song YS. Cancer-specific interruption of glucose metabolism by resveratrol is mediated through inhibition of Akt/GLUT1 axis in ovarian cancer cells. Mol Carcinog 2014; 54:1529-40. [DOI: 10.1002/mc.22227] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 07/31/2014] [Accepted: 08/13/2014] [Indexed: 11/06/2022]
Affiliation(s)
- HyeRan Gwak
- Biomodulation; Department of Agricultural Biotechnology; Seoul National University; Seoul Korea
- Cancer Research Institute; Seoul National University College of Medicine; Seoul Korea
| | - Guy Haegeman
- Cancer Research Institute; Seoul National University College of Medicine; Seoul Korea
| | - Benjamin K. Tsang
- Biomodulation; Department of Agricultural Biotechnology; Seoul National University; Seoul Korea
- Departments of Obstetrics and Gynecology; University of Ottawa; Ottawa Ontario Canada
- Departments of Cellular and Molecular Medicine; University of Ottawa; Ottawa Ontario Canada
- Departments of Interdisciplinary School of Health Sciences; University of Ottawa; Ottawa Ontario Canada
- Chronic Disease Program; Ottawa Hospital Research Institute; Ottawa Ontario Canada
| | - Yong Sang Song
- Biomodulation; Department of Agricultural Biotechnology; Seoul National University; Seoul Korea
- Cancer Research Institute; Seoul National University College of Medicine; Seoul Korea
- Interdisciplinary Program in Cancer Biology; Seoul National University College of Medicine; Seoul Korea
- Department of Obstetrics and Gynecology; Seoul National University College of Medicine; Seoul Korea
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