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Claessen MJAG, Yagci N, Fu K, Brandsma E, Kersten MJ, von Lindern M, van den Akker E. Production and stability of cultured red blood cells depends on the concentration of cholesterol in culture medium. Sci Rep 2024; 14:15592. [PMID: 38971841 PMCID: PMC11227516 DOI: 10.1038/s41598-024-66440-z] [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: 04/22/2024] [Accepted: 07/01/2024] [Indexed: 07/08/2024] Open
Abstract
The production of cultured red blood cells (cRBC) for transfusion purposes requires large scale cultures and downstream processes to purify enucleated cRBC. The membrane composition, and cholesterol content in particular, are important during proliferation of (pro)erythroblasts and for cRBC quality. Therefore, we tested the requirement for cholesterol in the culture medium during expansion and differentiation of erythroid cultures with respect to proliferation, enucleation and purification by filtration. The low cholesterol level (22 µg/dl) in serum free medium was sufficient to expand (pro)erythroblast cultures. Addition of 2.0 or 5.0 mg/dL of free cholesterol at the start of differentiation induction inhibited enucleation compared to the default condition containing 3.3 mg/dl total cholesterol derived from the addition of Omniplasma to serum free medium. Addition of 5.0 mg/dl cholesterol at day 5 of differentiation did not affect the enucleation process but significantly increased recovery of enucleated cRBC following filtration over leukodepletion filters. The addition of cholesterol at day 5 increased the osmotic resistance of cRBC. In conclusion, cholesterol supplementation after the onset of enucleation improved the robustness of cRBC and increased the yield of enucleated cRBC in the purification process.
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Affiliation(s)
- M J A G Claessen
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
- Department of Hematology, Amsterdam University Medical Centers, Cancer Center Amsterdam, De Boelelaan 1117, 1081HV, Amsterdam, The Netherlands
- Landsteiner Laboratory, Amsterdam University Medical Center, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - N Yagci
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
- Landsteiner Laboratory, Amsterdam University Medical Center, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - K Fu
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
- Landsteiner Laboratory, Amsterdam University Medical Center, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - E Brandsma
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
- Department of Life Sciences, Saxion University of Applied Sciences, M.H. Tromplaan 28, 7513AB, Enschede, The Netherlands
| | - M J Kersten
- Department of Hematology, Amsterdam University Medical Centers, Cancer Center Amsterdam, De Boelelaan 1117, 1081HV, Amsterdam, The Netherlands
| | - M von Lindern
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
- Landsteiner Laboratory, Amsterdam University Medical Center, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands
| | - E van den Akker
- Department Research, Sanquin Blood Supply, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands.
- Landsteiner Laboratory, Amsterdam University Medical Center, Plesmanlaan 125, 1066 CX, Amsterdam, The Netherlands.
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2
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Feng D, Wang Z, Cao S, Xu H, Li S. Identification of lipid metabolism-related gene signature in the bone marrow microenvironment of multiple myelomas through deep analysis of transcriptomic data. Clin Exp Med 2024; 24:136. [PMID: 38916672 PMCID: PMC11199273 DOI: 10.1007/s10238-024-01398-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Accepted: 06/10/2024] [Indexed: 06/26/2024]
Abstract
Dysregulated lipid metabolism in the bone marrow microenvironment (BMM) plays a vital role in multiple myeloma (MM) development, progression, and drug resistance. However, the exact mechanism by which lipid metabolism impacts the BMM, promotes tumorigenesis, and triggers drug resistance remains to be fully elucidated.By analyzing the bulk sequencing and single-cell sequencing data of MM patients, we identified lipid metabolism-related genes differential expression significantly associated with MM prognosis, referred to as LMRPgenes. Using a cohort of ten machine learning algorithms and 117 combinations, LMRPgenes predictive models were constructed. Further exploration of the effects of the model risk score (RS) on the survival status, immune status of patients with BMM, and response to immunotherapy was conducted. The study also facilitated the identification of personalized therapeutic strategies targeting specified risk categories within patient cohorts.Analysis of the scRNA-seq data revealed increased lipid metabolism-related gene enrichment scores (LMESs) in erythroblasts and progenitor, malignant, and Tprolif cells but decreased LMESs in lymphocytes. LMESs were also strongly correlated with most of the 50 hallmark pathways within these cell populations. An elevated malignant cell ratio and reduced lymphocytes were observed in the high LMES group. Moreover, the LMRPgenes predictive model, consisting of 14 genes, showed great predictive power. The risk score emerged as an independent indicator of poor outcomes. Inverse relationships between the RS and immune status were noted, and a high RS was associated with impaired immunotherapy responses. Drug sensitivity assays indicated the effectiveness of bortezomib, buparlisib, dinaciclib, staurosporine, rapamycin, and MST-312 in the high-RS group, suggesting their potential for treating patients with high-RS values and poor response to immunotherapy. Ultimately, upon verification via qRT-PCR, we observed a significant upregulation of ACBD6 in NDMM group compared to the control group.Our research enhances the knowledge base regarding the association between lipid metabolism-related genes (LMRGs) and the BMM in MM patients, offering substantive insights into the mechanistic effects of the BMM mediated by LMRGs.
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Affiliation(s)
- Dan Feng
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Liaoning, Dalian, 116011, China
| | - Zhen Wang
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Liaoning, Dalian, 116011, China
| | - Shengji Cao
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Liaoning, Dalian, 116011, China
| | - Hui Xu
- Department of Clinical Laboratory, Harbin Medical University Cancer Hospital, Harbin, 150000, Heilongjiang, China
| | - Shijun Li
- Department of Clinical Laboratory, The First Affiliated Hospital of Dalian Medical University, Liaoning, Dalian, 116011, China.
- College of Laboratory Medicine, Dalian Medical University, Liaoning, Dalian, 116044, China.
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3
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Wang E, Liu S, Zhang X, Peng Q, Yu H, Gao L, Xie A, Ma D, Zhao G, Cheng L. An Optimized Human Erythroblast Differentiation System Reveals Cholesterol-Dependency of Robust Production of Cultured Red Blood Cells Ex Vivo. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2303471. [PMID: 38481061 PMCID: PMC11165465 DOI: 10.1002/advs.202303471] [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: 05/29/2023] [Revised: 11/01/2023] [Indexed: 06/12/2024]
Abstract
The generation of cultured red blood cells (cRBCs) ex vivo represents a potentially unlimited source for RBC transfusion and other cell therapies. Human cRBCs can be generated from the terminal differentiation of proliferating erythroblasts derived from hematopoietic stem/progenitor cells or erythroid precursors in peripheral blood mononuclear cells. Efficient differentiation and maturation into cRBCs highly depend on replenishing human plasma, which exhibits variable potency across donors or batches and complicates the consistent cRBC production required for clinical translation. Hence, the role of human plasma in erythroblast terminal maturation is investigated and uncovered that 1) a newly developed cell culture basal medium mimicking the metabolic profile of human plasma enhances cell growth and increases cRBC yield upon erythroblast terminal differentiation and 2) LDL-carried cholesterol, as a substitute for human plasma, is sufficient to support erythroid survival and terminal differentiation ex vivo. Consequently, a chemically-defined optimized medium (COM) is developed, enabling robust generation of cRBCs from erythroblasts of multiple origins, with improved enucleation efficiency and higher reticulocyte yield, without the need for supplementing human plasma or serum. In addition, the results reveal the crucial role of lipid metabolism during human terminal erythropoiesis.
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Affiliation(s)
- Enyu Wang
- Department of HematologyThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230001China
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
- Department of Electronic Engineering and Information ScienceUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Senquan Liu
- Department of HematologyThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230001China
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Xinye Zhang
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Qingyou Peng
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Huijuan Yu
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Lei Gao
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - An Xie
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Ding Ma
- Department of HematologyThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230001China
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Gang Zhao
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
- Department of Electronic Engineering and Information ScienceUniversity of Science and Technology of ChinaHefeiAnhui230027China
| | - Linzhao Cheng
- Department of HematologyThe First Affiliated Hospital of USTCDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230001China
- Blood and Cell Therapy InstituteAnhui Provincial Key Laboratory of Blood Research and ApplicationsUniversity of Science and Technology of ChinaHefeiAnhui230027China
- School of Basic Medical SciencesDivision of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui230027China
- Division of HematologyJohns Hopkins University School of MedicineBaltimoreMD21205USA
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4
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Lyu J, Ni M, Weiss MJ, Xu J. Metabolic regulation of erythrocyte development and disorders. Exp Hematol 2024; 131:104153. [PMID: 38237718 PMCID: PMC10939827 DOI: 10.1016/j.exphem.2024.104153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 02/01/2024]
Abstract
The formation of new red blood cells (RBC) (erythropoiesis) has served as a paradigm for understanding cellular differentiation and developmental control of gene expression. The metabolic regulation of this complex, coordinated process remains poorly understood. Each step of erythropoiesis, including lineage specification of hematopoietic stem cells, proliferation, differentiation, and terminal maturation into highly specialized oxygen-carrying cells, has unique metabolic requirements. Developing erythrocytes in mammals are also characterized by unique metabolic events such as loss of mitochondria with switch to glycolysis, ejection of nucleus and organelles, high-level heme and hemoglobin synthesis, and antioxidant requirement to protect hemoglobin molecules. Genetic defects in metabolic enzymes, including pyruvate kinase and glucose-6-phosphate dehydrogenase, cause common erythrocyte disorders, whereas other inherited disorders such as sickle cell disease and β-thalassemia display metabolic abnormalities associated with disease pathophysiology. Here we describe recent discoveries on the metabolic control of RBC formation and function, highlight emerging concepts in understanding the erythroid metabolome, and discuss potential therapeutic benefits of targeting metabolism for RBC disorders.
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Affiliation(s)
- Junhua Lyu
- Center of Excellence for Leukemia Studies, Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN
| | - Min Ni
- Division of Molecular Oncology, Department of Oncology, St. Jude Children's Research Hospital, Memphis, TN
| | - Mitchell J Weiss
- Department of Hematology, St. Jude Children's Research Hospital, Memphis, TN
| | - Jian Xu
- Center of Excellence for Leukemia Studies, Department of Pathology, St. Jude Children's Research Hospital, Memphis, TN.
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5
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Maynard AG, Pohl NK, Mueller AP, Petrova B, Wong AYL, Wang P, Culhane AJ, Brook JR, Hirsch LM, Hoang N, Kirkland O, Braun T, Ducamp S, Fleming MD, Li H, Kanarek N. Folate depletion induces erythroid differentiation through perturbation of de novo purine synthesis. SCIENCE ADVANCES 2024; 10:eadj9479. [PMID: 38295180 PMCID: PMC10830111 DOI: 10.1126/sciadv.adj9479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 12/29/2023] [Indexed: 02/02/2024]
Abstract
Folate, an essential vitamin, is a one-carbon acceptor and donor in key metabolic reactions. Erythroid cells harbor a unique sensitivity to folate deprivation, as revealed by the primary pathological manifestation of nutritional folate deprivation: megaloblastic anemia. To study this metabolic sensitivity, we applied mild folate depletion to human and mouse erythroid cell lines and primary murine erythroid progenitors. We show that folate depletion induces early blockade of purine synthesis and accumulation of the purine synthesis intermediate and signaling molecule, 5'-phosphoribosyl-5-aminoimidazole-4-carboxamide (AICAR), followed by enhanced heme metabolism, hemoglobin synthesis, and erythroid differentiation. This is phenocopied by inhibition of folate metabolism using the inhibitor SHIN1, and by AICAR supplementation. Mechanistically, the metabolically driven differentiation is independent of mechanistic target of rapamycin complex 1 (mTORC1) and adenosine 5'-monophosphate-activated protein kinase (AMPK) and is instead mediated by protein kinase C. Our findings suggest that folate deprivation-induced premature differentiation of erythroid progenitor cells is a molecular etiology to folate deficiency-induced anemia.
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Affiliation(s)
- Adam G. Maynard
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Graduate Program in Biological and Biomedical Sciences, Harvard Medical School, Boston, MA 02115, USA
| | - Nancy K. Pohl
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard School of Public Health PhD Program, Boston, MA 02115, USA
| | - Annabel P. Mueller
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Boryana Petrova
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Alan Y. L. Wong
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard/MIT MD-PhD Program, Harvard Medical School, Boston, MA 02115, USA
| | - Peng Wang
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Andrew J. Culhane
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Jeannette R. Brook
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
| | - Leah M. Hirsch
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Ngoc Hoang
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Orville Kirkland
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Tatum Braun
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
| | - Sarah Ducamp
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Mark D. Fleming
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Hojun Li
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA 02142, USA
- Division of Hematology/Oncology, Boston Children’s Hospital, Boston, MA 02115, USA
- Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02115, USA
- Department of Pediatrics, University of California, San Diego, CA 92093, USA
| | - Naama Kanarek
- Department of Pathology, Boston Children’s Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
- Broad Institute of Harvard and MIT, Cambridge, MA, 02142, USA
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6
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Ma W, Arima Y, Umemoto T, Yokomizo T, Xu Y, Miharada K, Tanaka Y, Suda T. Metabolic regulation in erythroid differentiation by systemic ketogenesis in fasted mice. Exp Hematol 2024; 129:104124. [PMID: 37898316 DOI: 10.1016/j.exphem.2023.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2023] [Revised: 10/13/2023] [Accepted: 10/22/2023] [Indexed: 10/30/2023]
Abstract
Erythroid terminal differentiation and maturation depend on an enormous energy supply. During periods of fasting, ketone bodies from the liver are transported into circulation and utilized as crucial fuel for peripheral tissues. However, the effects of fasting or ketogenesis on erythroid behavior remain unknown. Here, we generated a mouse model with insufficient ketogenesis by conditionally knocking out the gene encoding the hepatocyte-specific ketogenic enzyme hydroxymethylglutary-CoA synthase 2 (Hmgcs2 KO). Intriguingly, erythroid maturation was enhanced with boosted fatty acid synthesis in the bone marrow of a hepatic Hmgcs2 KO mouse under fasting conditions, suggesting that systemic ketogenesis has a profound effect on erythropoiesis. Moreover, we observed significantly activated fatty acid synthesis and mevalonate pathways along with reduced histone acetylation in immature erythrocytes under a less systemic ketogenesis condition. Our findings revealed a new insight into erythroid differentiation, in which metabolic homeostasis and histone acetylation mediated by ketone bodies are essential factors in adaptation toward nutrient deprivation and stressed erythropoiesis.
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Affiliation(s)
- Wenjuan Ma
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Yuichiro Arima
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Terumasa Umemoto
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Tomomasa Yokomizo
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Yuqing Xu
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Kenichi Miharada
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Yosuke Tanaka
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan
| | - Toshio Suda
- International Research Center for Medical Sciences (IRCMS), Kumamoto University, Kumamoto, Japan; Cancer Science Institute of Singapore, Centre for Translation Medicine, National University of Singapore, Singapore, Singapore.
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7
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Mikdar M, Serra M, Colin E, Duval R, Gauthier EF, Lamarre Y, Colin Y, Le Van Kim C, Peyrard T, Koehl B, Azouzi S. Adenosine signaling inhibits erythropoiesis and promotes myeloid differentiation. Haematologica 2024; 109:175-185. [PMID: 37199120 PMCID: PMC10772517 DOI: 10.3324/haematol.2022.281823] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 05/10/2023] [Indexed: 05/19/2023] Open
Abstract
Intracellular uptake of adenosine is essential for optimal erythroid commitment and differentiation of hematopoietic progenitor cells. The role of adenosine signaling is well documented in the regulation of blood flow, cell proliferation, apoptosis, and stem cell regeneration. However, the role of adenosine signaling in hematopoiesis remains unclear. In this study, we show that adenosine signaling inhibits the proliferation of erythroid precursors by activating the p53 pathway and hampers the terminal erythroid maturation. Furthermore, we demonstrate that the activation of specific adenosine receptors promotes myelopoiesis. Overall, our findings indicate that extracellular adenosine could be a new player in the regulation of hematopoiesis.
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Affiliation(s)
- Mahmoud Mikdar
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris
| | - Marion Serra
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris
| | - Elia Colin
- Laboratory of molecular mechanisms of hematologic disorders and therapeutic implications, Imagine Institute, UMR_ S1163, Inserm, Université Paris Cité
| | - Romain Duval
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris, France; Centre National de Référence pour les Groupes Sanguins, Établissement Français du Sang (EFS), Ile-de-France, F-75011 Paris
| | - Emilie-Fleur Gauthier
- Université Paris Cité, UMR_S1016, UMR 8104, Plateforme de Protéomique (3P5), Institut Cochin, Inserm, CNRS
| | - Yann Lamarre
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris
| | - Yves Colin
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris
| | - Caroline Le Van Kim
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris
| | - Thierry Peyrard
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris, France; Centre National de Référence pour les Groupes Sanguins, Établissement Français du Sang (EFS), Ile-de-France, F-75011 Paris
| | - Bérengère Koehl
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris, France; Sickle Cell Disease Center, Hematology Unit, Hôpital Robert Debré, Assistance Publique - Hôpitaux de Paris, F-75019 Paris
| | - Slim Azouzi
- Université Paris Cité and Université des Antilles, INSERM, BIGR, F-75014 Paris, France; Centre National de Référence pour les Groupes Sanguins, Établissement Français du Sang (EFS), Ile-de-France, F-75011 Paris.
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8
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Han Y, Wang S, Wang Y, Huang Y, Gao C, Guo X, Chen L, Zhao H, An X. Comprehensive Characterization and Global Transcriptome Analysis of Human Fetal Liver Terminal Erythropoiesis. GENOMICS, PROTEOMICS & BIOINFORMATICS 2023; 21:1117-1132. [PMID: 37657739 PMCID: PMC11082260 DOI: 10.1016/j.gpb.2023.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 05/19/2023] [Accepted: 08/26/2023] [Indexed: 09/03/2023]
Abstract
The fetal liver (FL) is the key erythropoietic organ during fetal development, but knowledge on human FL erythropoiesis is very limited. In this study, we sorted primary erythroblasts from FL cells and performed RNA sequencing (RNA-seq) analyses. We found that temporal gene expression patterns reflected changes in function during primary human FL terminal erythropoiesis. Notably, the expression of genes enriched in proteolysis and autophagy was up-regulated in orthochromatic erythroblasts (OrthoEs), suggesting the involvement of these pathways in enucleation. We also performed RNA-seq of in vitro cultured erythroblasts derived from FL CD34+ cells. Comparison of transcriptomes between the primary and cultured erythroblasts revealed significant differences, indicating impacts of the culture system on gene expression. Notably, the expression of lipid metabolism-related genes was increased in cultured erythroblasts. We further immortalized erythroid cell lines from FL and cord blood (CB) CD34+ cells (FL-iEry and CB-iEry, respectively). FL-iEry and CB-iEry were immortalized at the proerythroblast stage and can be induced to differentiate into OrthoEs, but their enucleation ability was very low. Comparison of the transcriptomes between OrthoEs with and without enucleation capability revealed the down-regulation of pathways involved in chromatin organization and mitophagy in OrthoEs without enucleation capacity, indicating that defects in chromatin organization and mitophagy contribute to the inability of OrthoEs to enucleate. Additionally, the expression of HBE1, HBZ, and HBG2 was up-regulated in FL-iEry compared with CB-iEry, and such up-regulation was accompanied by down-regulated expression of BCL11A and up-regulated expression of LIN28B and IGF2BP1. Our study provides new insights into human FL erythropoiesis and rich resources for future studies.
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Affiliation(s)
- Yongshuai Han
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China; Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Shihui Wang
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA; Institute of Hematology, People's Hospital of Zhengzhou University, Zhengzhou 450003, 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, Zhengzhou 450000, China
| | - Yumin Huang
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA; Department of Hematology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450002, China
| | - Chengjie Gao
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Xinhua Guo
- Laboratory of Membrane Biology, New York Blood Center, New York, NY 10065, USA
| | - Lixiang Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - 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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9
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Harris CT, Tong X, Campelo R, Marreiros IM, Vanheer LN, Nahiyaan N, Zuzarte-Luís VA, Deitsch KW, Mota MM, Rhee KY, Kafsack BFC. Sexual differentiation in human malaria parasites is regulated by competition between phospholipid metabolism and histone methylation. Nat Microbiol 2023; 8:1280-1292. [PMID: 37277533 PMCID: PMC11163918 DOI: 10.1038/s41564-023-01396-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 04/25/2023] [Indexed: 06/07/2023]
Abstract
For Plasmodium falciparum, the most widespread and virulent malaria parasite that infects humans, persistence depends on continuous asexual replication in red blood cells, while transmission to their mosquito vector requires asexual blood-stage parasites to differentiate into non-replicating gametocytes. This decision is controlled by stochastic derepression of a heterochromatin-silenced locus encoding AP2-G, the master transcription factor of sexual differentiation. The frequency of ap2-g derepression was shown to be responsive to extracellular phospholipid precursors but the mechanism linking these metabolites to epigenetic regulation of ap2-g was unknown. Through a combination of molecular genetics, metabolomics and chromatin profiling, we show that this response is mediated by metabolic competition for the methyl donor S-adenosylmethionine between histone methyltransferases and phosphoethanolamine methyltransferase, a critical enzyme in the parasite's pathway for de novo phosphatidylcholine synthesis. When phosphatidylcholine precursors are scarce, increased consumption of SAM for de novo phosphatidylcholine synthesis impairs maintenance of the histone methylation responsible for silencing ap2-g, increasing the frequency of derepression and sexual differentiation. This provides a key mechanistic link that explains how LysoPC and choline availability can alter the chromatin status of the ap2-g locus controlling sexual differentiation.
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Affiliation(s)
- Chantal T Harris
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- Immunology and Microbial Pathogenesis Graduate Program, Weill Cornell Medicine, New York, NY, USA
| | - Xinran Tong
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- BCMB Allied Graduate Program, Weill Cornell Medicine, New York, NY, USA
| | - Riward Campelo
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Inês M Marreiros
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina Universidade de Lisboa, Lisbon, Portugal
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Portugal
| | - Leen N Vanheer
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Navid Nahiyaan
- Division of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Vanessa A Zuzarte-Luís
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina Universidade de Lisboa, Lisbon, Portugal
| | - Kirk W Deitsch
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
| | - Maria M Mota
- Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina Universidade de Lisboa, Lisbon, Portugal
| | - Kyu Y Rhee
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA
- Division of Infectious Diseases, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Björn F C Kafsack
- Department of Microbiology and Immunology, Weill Cornell Medicine, New York, NY, USA.
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10
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Gonzalez-Menendez P, Phadke I, Olive ME, Joly A, Papoin J, Yan H, Galtier J, Platon J, Kang SWS, McGraw KL, Daumur M, Pouzolles M, Kondo T, Boireau S, Paul F, Young DJ, Lamure S, Mirmira RG, Narla A, Cartron G, Dunbar CE, Boyer-Clavel M, Porat-Shliom N, Dardalhon V, Zimmermann VS, Sitbon M, Dever TE, Mohandas N, Da Costa L, Udeshi ND, Blanc L, Kinet S, Taylor N. Arginine metabolism regulates human erythroid differentiation through hypusination of eIF5A. Blood 2023; 141:2520-2536. [PMID: 36735910 PMCID: PMC10273172 DOI: 10.1182/blood.2022017584] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 01/20/2023] [Accepted: 01/20/2023] [Indexed: 02/05/2023] Open
Abstract
Metabolic programs contribute to hematopoietic stem and progenitor cell (HSPC) fate, but it is not known whether the metabolic regulation of protein synthesis controls HSPC differentiation. Here, we show that SLC7A1/cationic amino acid transporter 1-dependent arginine uptake and its catabolism to the polyamine spermidine control human erythroid specification of HSPCs via the activation of the eukaryotic translation initiation factor 5A (eIF5A). eIF5A activity is dependent on its hypusination, a posttranslational modification resulting from the conjugation of the aminobutyl moiety of spermidine to lysine. Notably, attenuation of hypusine synthesis in erythroid progenitors, by the inhibition of deoxyhypusine synthase, abrogates erythropoiesis but not myeloid cell differentiation. Proteomic profiling reveals mitochondrial translation to be a critical target of hypusinated eIF5A, and accordingly, progenitors with decreased hypusine activity exhibit diminished oxidative phosphorylation. This affected pathway is critical for eIF5A-regulated erythropoiesis, as interventions augmenting mitochondrial function partially rescue human erythropoiesis under conditions of attenuated hypusination. Levels of mitochondrial ribosomal proteins (RPs) were especially sensitive to the loss of hypusine, and we find that the ineffective erythropoiesis linked to haploinsufficiency of RPS14 in chromosome 5q deletions in myelodysplastic syndrome is associated with a diminished pool of hypusinated eIF5A. Moreover, patients with RPL11-haploinsufficient Diamond-Blackfan anemia as well as CD34+ progenitors with downregulated RPL11 exhibit a markedly decreased hypusination in erythroid progenitors, concomitant with a loss of mitochondrial metabolism. Thus, eIF5A-dependent protein synthesis regulates human erythropoiesis, and our data reveal a novel role for RPs in controlling eIF5A hypusination in HSPCs, synchronizing mitochondrial metabolism with erythroid differentiation.
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Affiliation(s)
- Pedro Gonzalez-Menendez
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Ira Phadke
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Meagan E. Olive
- Proteomics Platform, Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, MA
| | - Axel Joly
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Julien Papoin
- Feinstein Institute for Medical Research, Manhasset, NY
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
| | | | - Jérémy Galtier
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Jessica Platon
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
| | | | - Kathy L. McGraw
- Laboratory of Receptor Biology and Gene Expression, NCI, CCR, NIH, Bethesda, MD
| | - Marie Daumur
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Marie Pouzolles
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Taisuke Kondo
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
| | - Stéphanie Boireau
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Montpellier Ressources Imagerie, BioCampus, University of Montpellier, CNRS, INSERM, Montpellier, France
| | - Franciane Paul
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - David J. Young
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
| | - Sylvain Lamure
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | | | - Anupama Narla
- Division of Pediatric Hematology/Oncology, Stanford University, Stanford, CA
| | - Guillaume Cartron
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Department of Clinical Hematology, Centre Hospitalier Universitaire de Montpellier, Montpellier, France
| | - Cynthia E. Dunbar
- Translational Stem Cell Biology Branch, National Heart, Lung, and Blood Institute, NIH, Bethesda, MD
| | - Myriam Boyer-Clavel
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | | | - Valérie Dardalhon
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Valérie S. Zimmermann
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
| | - Marc Sitbon
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Thomas E. Dever
- Section on Protein Biosynthesis, Eunice Kennedy Shriver National Institute of Child Health and Human Development, NIH, Bethesda, MD
| | | | - Lydie Da Costa
- Laboratory of Excellence GR-Ex, Paris, France
- EA4666 HEMATIM, Université Picardie Jules Verne, Amiens, France
- Service d'Hématologie Biologique (Hematology Diagnostic Laboratory), Assistance Publique–Hôpitaux de Paris, Robert Debr Hôpital, Paris, France
- Paris Cité University, Paris, France
| | - Namrata D. Udeshi
- Proteomics Platform, Broad Institute, Massachusetts Institute of Technology and Harvard University, Cambridge, MA
| | - Lionel Blanc
- Feinstein Institute for Medical Research, Manhasset, NY
| | - Sandrina Kinet
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Naomi Taylor
- Institut de Génétique Moléculaire de Montpellier, Université de Montpellier, Centre National de la Recherche Scientifique (CNRS), Montpellier, France
- Laboratory of Excellence GR-Ex, Paris, France
- Pediatric Oncology Branch, National Cancer Institute (NCI), Center for Cancer Research (CCR), National Institutes of Health (NIH), Bethesda, MD
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11
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Moore A, Busch MP, Dziewulska K, Francis RO, Hod EA, Zimring JC, D’Alessandro A, Page GP. Genome-wide metabolite quantitative trait loci analysis (mQTL) in red blood cells from volunteer blood donors. J Biol Chem 2022; 298:102706. [PMID: 36395887 PMCID: PMC9763692 DOI: 10.1016/j.jbc.2022.102706] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/16/2022] Open
Abstract
The red blood cell (RBC)-Omics study, part of the larger NHLBI-funded Recipient Epidemiology and Donor Evaluation Study (REDS-III), aims to understand the genetic contribution to blood donor RBC characteristics. Previous work identified donor demographic, behavioral, genetic, and metabolic underpinnings to blood donation, storage, and (to a lesser extent) transfusion outcomes, but none have yet linked the genetic and metabolic bodies of work. We performed a genome-wide association (GWA) analysis using RBC-Omics study participants with generated untargeted metabolomics data to identify metabolite quantitative trait loci in RBCs. We performed GWA analyses of 382 metabolites in 243 individuals imputed using the 1000 Genomes Project phase 3 all-ancestry reference panel. Analyses were conducted using ProbABEL and adjusted for sex, age, donation center, number of whole blood donations in the past 2 years, and first 10 principal components of ancestry. Our results identified 423 independent genetic loci associated with 132 metabolites (p < 5×10-8). Potentially novel locus-metabolite associations were identified for the region encoding heme transporter FLVCR1 and choline and for lysophosphatidylcholine acetyltransferase LPCAT3 and lysophosphatidylserine 16.0, 18.0, 18.1, and 18.2; these associations are supported by published rare disease and mouse studies. We also confirmed previous metabolite GWA results for associations, including N(6)-methyl-L-lysine and protein PYROXD2 and various carnitines and transporter SLC22A16. Association between pyruvate levels and G6PD polymorphisms was validated in an independent cohort and novel murine models of G6PD deficiency (African and Mediterranean variants). We demonstrate that it is possible to perform metabolomics-scale GWA analyses with a modest, trans-ancestry sample size.
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Affiliation(s)
- Amy Moore
- Division of Biostatistics and Epidemiology, RTI International, Atlanta, Georgia, USA
| | | | - Karolina Dziewulska
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Richard O. Francis
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - Eldad A. Hod
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA
| | - James C. Zimring
- Department of Pathology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Angelo D’Alessandro
- Department of Pathology and Cell Biology, Columbia University Medical Center, New York, New York, USA,Department of Biochemistry and Molecular Genetics, University of Colorado Denver – Anschutz Medical Campus, Aurora, CO, USA,For correspondence: Grier P. Page; Angelo D’Alessandro
| | - Grier P. Page
- Division of Biostatistics and Epidemiology, RTI International, Atlanta, Georgia, USA,For correspondence: Grier P. Page; Angelo D’Alessandro
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12
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Günther A, Hose M, Abberger H, Schumacher F, Veith Y, Kleuser B, Matuschewski K, Lang KS, Gulbins E, Buer J, Westendorf A, Hansen W. The acid ceramidase/ceramide axis controls parasitemia in Plasmodium yoelii-infected mice by regulating erythropoiesis. eLife 2022; 11:77975. [PMID: 36094170 PMCID: PMC9499531 DOI: 10.7554/elife.77975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 09/09/2022] [Indexed: 11/13/2022] Open
Abstract
Acid ceramidase (Ac) is part of the sphingolipid metabolism and responsible for the degradation of ceramide. As bioactive molecule, ceramide is involved in the regulation of many cellular processes. However, the impact of cell-intrinsic Ac activity and ceramide on the course of Plasmodium infection remains elusive. Here, we use Ac-deficient mice with ubiquitously increased ceramide levels to elucidate the role of endogenous Ac activity in a murine malaria model. Interestingly, ablation of Ac leads to alleviated parasitemia associated with decreased T cell responses in the early phase of Plasmodium yoelii infection. Mechanistically, we identified dysregulated erythropoiesis with reduced numbers of reticulocytes, the preferred host cells of P. yoelii, in Ac-deficient mice. Furthermore, we demonstrate that administration of the Ac inhibitor carmofur to wildtype mice has similar effects on P. yoelii infection and erythropoiesis. Notably, therapeutic carmofur treatment after manifestation of P. yoelii infection is efficient in reducing parasitemia. Hence, our results provide evidence for the involvement of Ac and ceramide in controlling P. yoelii infection by regulating red blood cell development.
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Affiliation(s)
- Anne Günther
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Matthias Hose
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Hanna Abberger
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | | | - Ylva Veith
- Institute of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | - Burkhard Kleuser
- Institute of Pharmacy, Freie Universität Berlin, Berlin, Germany
| | - Kai Matuschewski
- Institute of Biology, Humboldt-Universität zu Berlin, Berlin, Germany
| | | | - Erich Gulbins
- Institute of Molecular Biology, University of Duisburg-Essen, Essen, Germany
| | - Jan Buer
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
| | - Astrid Westendorf
- Institute of Medical Microbiology, University of Duisburg-Essen, Duisburg, Germany
| | - Wiebke Hansen
- Institute of Medical Microbiology, University of Duisburg-Essen, Essen, Germany
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13
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Liu Y, Wu Y, Jiang M. The emerging roles of PHOSPHO1 and its regulated phospholipid homeostasis in metabolic disorders. Front Physiol 2022; 13:935195. [PMID: 35957983 PMCID: PMC9360546 DOI: 10.3389/fphys.2022.935195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 07/07/2022] [Indexed: 11/25/2022] Open
Abstract
Emerging evidence suggests that phosphoethanolamine/phosphocholine phosphatase 1 (PHOSPHO1), a specific phosphoethanolamine and phosphocholine phosphatase, is involved in energy metabolism. In this review, we describe the structure and regulation of PHOSPHO1, as well as current knowledge about the role of PHOSPHO1 and its related phospholipid metabolites in regulating energy metabolism. We also examine mechanistic evidence of PHOSPHO1- and phospholipid-mediated regulation of mitochondrial and lipid droplets functions in the context of metabolic homeostasis, which could be potentially targeted for treating metabolic disorders.
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Affiliation(s)
- Yi Liu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Yingting Wu
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
| | - Mengxi Jiang
- Department of Pharmacology, School of Basic Medical Sciences, Capital Medical University, Beijing, China
- Advanced Innovation Center for Human Brain Protection, Capital Medical University, Beijing, China
- *Correspondence: Mengxi Jiang,
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14
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RNA Sequencing of Whole Blood Defines the Signature of High Intensity Exercise at Altitude in Elite Speed Skaters. Genes (Basel) 2022; 13:genes13040574. [PMID: 35456380 PMCID: PMC9027771 DOI: 10.3390/genes13040574] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/08/2022] [Accepted: 03/21/2022] [Indexed: 12/18/2022] Open
Abstract
Although high altitude training has been increasingly popular among endurance athletes, the molecular and cellular bases of this adaptation remain poorly understood. We aimed to define the underlying physiological changes and screen for potential biomarkers of adaptation using transcriptional profiling of whole blood. Seven elite female speed skaters were profiled on the 18th day of high-altitude adaptation. Whole blood RNA-seq before and after an intense 1 h skating bout was used to measure gene expression changes associated with exercise. In order to identify the genes specifically regulated at high altitudes, we have leveraged the data from eight previously published microarray datasets studying blood expression changes after exercise at sea level. Using cell type-specific signatures, we were able to deconvolute changes of cell type abundance from individual gene expression changes. Among these were PHOSPHO1, with a known role in erythropoiesis, and MARC1 with a role in endogenic NO metabolism. We find that platelet and erythrocyte counts uniquely respond to altitude exercise, while changes in neutrophils represent a more generic marker of intense exercise. Publicly available data from both single cell atlases and exercise-related blood profiling dramatically increases the value of whole blood RNA-seq for the dynamic evaluation of physiological changes in an athlete’s body.
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15
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Lu Z, Huang L, Li Y, Xu Y, Zhang R, Zhou Q, Sun Q, Lu Y, Chen J, Shen Y, Li J, Zhao B. Fine-Tuning of Cholesterol Homeostasis Controls Erythroid Differentiation. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2102669. [PMID: 34739188 PMCID: PMC8805577 DOI: 10.1002/advs.202102669] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Revised: 10/01/2021] [Indexed: 05/12/2023]
Abstract
Lipid metabolism is essential for stemness maintenance, self-renewal, and differentiation of stem cells, however, the regulatory function of cholesterol metabolism in erythroid differentiation is poorly studied. In the present study, a critical role for cholesterol homeostasis in terminal erythropoiesis is uncovered. The master transcriptional factor GATA1 binds to Sterol-regulatory element binding protein 2 (SREBP2) to downregulate cholesterol biosynthesis, leading to a gradual reduction in intracellular cholesterol levels. It is further shown that reduced cholesterol functions to block erythroid proliferation via the cholesterol/mTORC1/ribosome biogenesis axis, which coordinates cell cycle exit in the late stages of erythroid differentiation. The interaction of GATA1 and SREBP2 also provides a feedback loop for regulating globin expression through the transcriptional control of NFE2 by SREBP2. Importantly, it is shown that disrupting intracellular cholesterol hemostasis resulted in defect of terminal erythroid differentiation in vivo. These findings demonstrate that fine-tuning of cholesterol homeostasis emerges as a key mechanism for regulating erythropoiesis.
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Affiliation(s)
- Zhiyuan Lu
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Lixia Huang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yanxia Li
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yan Xu
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Ruihao Zhang
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Qian Zhou
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Qi Sun
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Yi Lu
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Junjie Chen
- Analysis and Measurement CenterSchool of Pharmaceutical SciencesXiamen UniversityXiamenFujian361001China
| | - Yuemao Shen
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Jian Li
- Department of Biochemistry and Molecular BiologySchool of Basic Medical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
| | - Baobing Zhao
- Key Laboratory of Chemical Biology (Ministry of Education)School of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
- Department of PharmacologySchool of Pharmaceutical SciencesCheeloo College of MedicineShandong UniversityJinanShandong250012China
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16
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Dan H, Haichao Z, Ziyang Y, Di Z, Shuihan Z. Protective effects of Fufang Ejiao Jiang against aplastic anemia assessed by network pharmacology and metabolomics strategy. DIGITAL CHINESE MEDICINE 2021. [DOI: 10.1016/j.dcmed.2021.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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17
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Sphingolipids in Hematopoiesis: Exploring Their Role in Lineage Commitment. Cells 2021; 10:cells10102507. [PMID: 34685487 PMCID: PMC8534120 DOI: 10.3390/cells10102507] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/30/2021] [Accepted: 09/18/2021] [Indexed: 11/17/2022] Open
Abstract
Sphingolipids, associated enzymes, and the sphingolipid pathway are implicated in complex, multifaceted roles impacting several cell functions, such as cellular homeostasis, apoptosis, cell differentiation, and more through intrinsic and autocrine/paracrine mechanisms. Given this broad range of functions, it comes as no surprise that a large body of evidence points to important functions of sphingolipids in hematopoiesis. As the understanding of the processes that regulate hematopoiesis and of the specific characteristics that define each type of hematopoietic cells is being continuously refined, the understanding of the roles of sphingolipid metabolism in hematopoietic lineage commitment is also evolving. Recent findings indicate that sphingolipid alterations can modulate lineage commitment from stem cells all the way to megakaryocytic, erythroid, myeloid, and lymphoid cells. For instance, recent evidence points to the ability of de novo sphingolipids to regulate the stemness of hematopoietic stem cells while a substantial body of literature implicates various sphingolipids in specialized terminal differentiation, such as thrombopoiesis. This review provides a comprehensive discussion focused on the mechanisms that link sphingolipids to the commitment of hematopoietic cells to the different lineages, also highlighting yet to be resolved questions.
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18
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Pellegrin S, Severn CE, Toye AM. Towards manufactured red blood cells for the treatment of inherited anemia. Haematologica 2021; 106:2304-2311. [PMID: 34042406 PMCID: PMC8409035 DOI: 10.3324/haematol.2020.268847] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Indexed: 11/21/2022] Open
Abstract
Patients with inherited anemia and hemoglobinopathies (such as sickle cell disease and β-thalassemia) are treated with red blood cell (RBC) transfusions to alleviate their symptoms. Some of these patients may have rare blood group types or go on to develop alloimmune reactions, which can make it difficult to source compatible blood in the donor population. Laboratory-grown RBC represent a particularly attractive alternative which could satisfy an unmet clinical need. The challenge, however, is to produce - from a limited number of stem cells - the 2x1012 RBC required for a standard adult therapeutic dose. Encouraging progress has been made in RBC production from adult stem cells under good manufacturing practice. In 2011, the Douay group conducted a successful proof-of-principle mini-transfusion of autologous manufactured RBC in a single volunteer. In the UK, a trial is planned to assess whether manufactured RBC are equivalent to RBC produced naturally in donors, by testing an allogeneic mini-dose of laboratory-grown manufactured RBC in multiple volunteers. This review discusses recent progress in the erythroid culture field as well as opportunities for further scaling up of manufactured RBC production for transfusion practice.
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Affiliation(s)
- Stephanie Pellegrin
- School of Biochemistry, Biomedical Sciences Building; National Institute for Health Research (NIHR) Blood and Transplant Research Unit in Red Blood Cell Products, University of Bristol.
| | - Charlotte E Severn
- School of Biochemistry, Biomedical Sciences Building; National Institute for Health Research (NIHR) Blood and Transplant Research Unit in Red Blood Cell Products, University of Bristol.
| | - Ashley M Toye
- School of Biochemistry, Biomedical Sciences Building; National Institute for Health Research (NIHR) Blood and Transplant Research Unit in Red Blood Cell Products, University of Bristol; Bristol Institute of Transfusion Sciences, NHSBT Filton. Bristol.
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19
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Statistical Integration of 'Omics Data Increases Biological Knowledge Extracted from Metabolomics Data: Application to Intestinal Exposure to the Mycotoxin Deoxynivalenol. Metabolites 2021; 11:metabo11060407. [PMID: 34205708 PMCID: PMC8233929 DOI: 10.3390/metabo11060407] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 06/07/2021] [Accepted: 06/15/2021] [Indexed: 12/18/2022] Open
Abstract
The effects of low doses of toxicants are often subtle and information extracted from metabolomic data alone may not always be sufficient. As end products of enzymatic reactions, metabolites represent the final phenotypic expression of an organism and can also reflect gene expression changes caused by this exposure. Therefore, the integration of metabolomic and transcriptomic data could improve the extracted biological knowledge on these toxicants induced disruptions. In the present study, we applied statistical integration tools to metabolomic and transcriptomic data obtained from jejunal explants of pigs exposed to the food contaminant, deoxynivalenol (DON). Canonical correlation analysis (CCA) and self-organizing map (SOM) were compared for the identification of correlated transcriptomic and metabolomic features, and O2-PLS was used to model the relationship between exposure and selected features. The integration of both 'omics data increased the number of discriminant metabolites discovered (39) by about 10 times compared to the analysis of the metabolomic dataset alone (3). Besides the disturbance of energy metabolism previously reported, assessing correlations between both functional levels revealed several other types of damage linked to the intestinal exposure to DON, including the alteration of protein synthesis, oxidative stress, and inflammasome activation. This confirms the added value of integration to enrich the biological knowledge extracted from metabolomics.
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Menon V, Ghaffari S. Erythroid enucleation: a gateway into a "bloody" world. Exp Hematol 2021; 95:13-22. [PMID: 33440185 PMCID: PMC8147720 DOI: 10.1016/j.exphem.2021.01.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 12/18/2022]
Abstract
Erythropoiesis is an intricate process starting in hematopoietic stem cells and leading to the daily production of 200 billion red blood cells (RBCs). Enucleation is a greatly complex and rate-limiting step during terminal maturation of mammalian RBC production involving expulsion of the nucleus from the orthochromatic erythroblasts, resulting in the formation of reticulocytes. The dynamic enucleation process involves many factors ranging from cytoskeletal proteins to transcription factors to microRNAs. Lack of optimum terminal erythroid maturation and enucleation has been an impediment to optimum RBC production ex vivo. Major efforts in the past two decades have exposed some of the mechanisms that govern the enucleation process. This review focuses in detail on mechanisms implicated in enucleation and discusses the future perspectives of this fascinating process.
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Affiliation(s)
- Vijay Menon
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Saghi Ghaffari
- Department of Cell, Developmental & Regenerative Biology, Icahn School of Medicine at Mount Sinai, New York, NY; Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY; Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY; Black Family Stem Cell Institute, Icahn School of Medicine at Mount Sinai, New York, NY.
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21
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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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22
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Kaiser L, Weinschrott H, Quint I, Blaess M, Csuk R, Jung M, Kohl M, Deigner HP. Metabolite Patterns in Human Myeloid Hematopoiesis Result from Lineage-Dependent Active Metabolic Pathways. Int J Mol Sci 2020; 21:ijms21176092. [PMID: 32847028 PMCID: PMC7504406 DOI: 10.3390/ijms21176092] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Revised: 08/18/2020] [Accepted: 08/21/2020] [Indexed: 12/18/2022] Open
Abstract
Assessment of hematotoxicity from environmental or xenobiotic compounds is of notable interest and is frequently assessed via the colony forming unit (CFU) assay. Identification of the mode of action of single compounds is of further interest, as this often enables transfer of results across different tissues and compounds. Metabolomics displays one promising approach for such identification, nevertheless, suitability with current protocols is restricted. Here, we combined a hematopoietic stem and progenitor cell (HSPC) expansion approach with distinct lineage differentiations, resulting in formation of erythrocytes, dendritic cells and neutrophils. We examined the unique combination of pathway activity in glycolysis, glutaminolysis, polyamine synthesis, fatty acid oxidation and synthesis, as well as glycerophospholipid and sphingolipid metabolism. We further assessed their interconnections and essentialness for each lineage formation. By this, we provide further insights into active metabolic pathways during the differentiation of HSPC into different lineages, enabling profound understanding of possible metabolic changes in each lineage caused by exogenous compounds.
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Affiliation(s)
- Lars Kaiser
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstraße 25, 79104 Freiburg i. Br., Germany;
| | - Helga Weinschrott
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
| | - Isabel Quint
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
| | - Markus Blaess
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
| | - René Csuk
- Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Str. 2, 06120 Halle (Saale), Germany;
| | - Manfred Jung
- Institute of Pharmaceutical Sciences, University of Freiburg, Albertstraße 25, 79104 Freiburg i. Br., Germany;
- CIBSS—Centre for Integrative Biological Signalling Studies, University of Freiburg, 79104 Freiburg, Germany
| | - Matthias Kohl
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
| | - Hans-Peter Deigner
- Institute of Precision Medicine, Medical and Life Sciences Faculty, Furtwangen University, Jakob-Kienzle-Straße 17, 78054 Villingen-Schwenningen, Germany; (L.K.); (H.W.); (I.Q.); (M.B.); (M.K.)
- Fraunhofer Institute IZI, Leipzig, EXIM Department, Schillingallee 68, 18057 Rostock, Germany
- Associated member of Tuebingen University, Faculty of Science, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Correspondence: ; Tel.: +49-7720-307-4232
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23
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PHOSPHO1 puts the breaks on thermogenesis in brown adipocytes. Proc Natl Acad Sci U S A 2020; 117:16726-16728. [PMID: 32641502 DOI: 10.1073/pnas.2011052117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Lalwani AM, Yilmaz A, Bisgin H, Ugur Z, Akyol S, Graham SF. The Biochemical Profile of Post-Mortem Brain from People Who Suffered from Epilepsy Reveals Novel Insights into the Etiopathogenesis of the Disease. Metabolites 2020; 10:metabo10060261. [PMID: 32585915 PMCID: PMC7345034 DOI: 10.3390/metabo10060261] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 06/10/2020] [Accepted: 06/15/2020] [Indexed: 01/08/2023] Open
Abstract
Epilepsy not-otherwise-specified (ENOS) is one of the most common causes of chronic disorders impacting human health, with complex multifactorial etiology and clinical presentation. Understanding the metabolic processes associated with the disorder may aid in the discovery of preventive and therapeutic measures. Post-mortem brain samples were harvested from the frontal cortex (BA8/46) of people diagnosed with ENOS cases (n = 15) and age- and sex-matched control subjects (n = 15). We employed a targeted metabolomics approach using a combination of proton nuclear magnetic resonance (1H-NMR) and direct injection/liquid chromatography tandem mass spectrometry (DI/LC-MS/MS). We accurately identified and quantified 72 metabolites using 1H-NMR and 159 using DI/LC-MS/MS. Among the 212 detected metabolites, 14 showed significant concentration changes between ENOS cases and controls (p < 0.05; q < 0.05). Of these, adenosine monophosphate and O-acetylcholine were the most commonly selected metabolites used to develop predictive models capable of discriminating between ENOS and unaffected controls. Metabolomic set enrichment analysis identified ethanol degradation, butyrate metabolism and the mitochondrial beta-oxidation of fatty acids as the top three significantly perturbed metabolic pathways. We report, for the first time, the metabolomic profiling of postmortem brain tissue form patients who died from epilepsy. These findings can potentially expand upon the complex etiopathogenesis and help identify key predictive biomarkers of ENOS.
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Affiliation(s)
- Ashna M. Lalwani
- Department of Biochemistry and Molecular Biology, Hamilton College, 198 College Hill Rd, Clinton, NY 13323, USA;
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ali Yilmaz
- Department of Obstetrics and Gynecology, Beaumont Health System, 3601 W. 13 Mile Road, Royal Oak, MI 48073, USA; (A.Y.); (Z.U.)
- Oakland University-William Beaumont School of Medicine, 586 Pioneer Dr, Rochester, MI 48309, USA
- Beaumont Research Institute, Beaumont Health, 3811 W. 13 Mile Road, Royal Oak, MI 48073, USA;
| | - Halil Bisgin
- Department of Computer Science, Engineering, and Physics, University of Michigan-Flint, 303 E. Kearsley St, Flint, MI 48502, USA;
| | - Zafer Ugur
- Department of Obstetrics and Gynecology, Beaumont Health System, 3601 W. 13 Mile Road, Royal Oak, MI 48073, USA; (A.Y.); (Z.U.)
- Beaumont Research Institute, Beaumont Health, 3811 W. 13 Mile Road, Royal Oak, MI 48073, USA;
| | - Sumeyya Akyol
- Beaumont Research Institute, Beaumont Health, 3811 W. 13 Mile Road, Royal Oak, MI 48073, USA;
| | - Stewart Francis Graham
- Department of Obstetrics and Gynecology, Beaumont Health System, 3601 W. 13 Mile Road, Royal Oak, MI 48073, USA; (A.Y.); (Z.U.)
- Oakland University-William Beaumont School of Medicine, 586 Pioneer Dr, Rochester, MI 48309, USA
- Beaumont Research Institute, Beaumont Health, 3811 W. 13 Mile Road, Royal Oak, MI 48073, USA;
- Correspondence: ; Tel.: +1-248-551-2038
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25
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Phosphocholine accumulation and PHOSPHO1 depletion promote adipose tissue thermogenesis. Proc Natl Acad Sci U S A 2020; 117:15055-15065. [PMID: 32554489 DOI: 10.1073/pnas.1916550117] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Phosphocholine phosphatase-1 (PHOSPHO1) is a phosphocholine phosphatase that catalyzes the hydrolysis of phosphocholine (PC) to choline. Here we demonstrate that the PHOSPHO1 transcript is highly enriched in mature brown adipose tissue (BAT) and is further induced by cold and isoproterenol treatments of BAT and primary brown adipocytes. In defining the functional relevance of PHOPSPHO1 in BAT thermogenesis and energy metabolism, we show that PHOSPHO1 knockout mice are cold-tolerant, with higher expression of thermogenic genes in BAT, and are protected from high-fat diet-induced obesity and development of insulin resistance. Treatment of mice with the PHOSPHO1 substrate phosphocholine is sufficient to induce cold tolerance, thermogenic gene expression, and allied metabolic benefits. Our results reveal a role of PHOSPHO1 as a negative regulator of BAT thermogenesis, and inhibition of PHOSPHO1 or enhancement of phosphocholine represent innovative approaches to manage the metabolic syndrome.
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26
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Heme-regulated eIF2α kinase in erythropoiesis and hemoglobinopathies. Blood 2020; 134:1697-1707. [PMID: 31554636 DOI: 10.1182/blood.2019001915] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 09/11/2019] [Indexed: 12/12/2022] Open
Abstract
As essential components of hemoglobin, iron and heme play central roles in terminal erythropoiesis. The impairment of this process in iron/heme deficiency results in microcytic hypochromic anemia, the most prevalent anemia globally. Heme-regulated eIF2α kinase, also known as heme-regulated inhibitor (HRI), is a key heme-binding protein that senses intracellular heme concentrations to balance globin protein synthesis with the amount of heme available for hemoglobin production. HRI is activated during heme deficiency to phosphorylate eIF2α (eIF2αP), which simultaneously inhibits the translation of globin messenger RNAs (mRNAs) and selectively enhances the translation of activating transcription factor 4 (ATF4) mRNA to induce stress response genes. This coordinated translational regulation is a universal hallmark across the eIF2α kinase family under various stress conditions and is termed the integrated stress response (ISR). Inhibition of general protein synthesis by HRI-eIF2αP in erythroblasts is necessary to prevent proteotoxicity and maintain protein homeostasis in the cytoplasm and mitochondria. Additionally, the HRI-eIF2αP-ATF4 pathway represses mechanistic target of rapamycin complex 1 (mTORC1) signaling, specifically in the erythroid lineage as a feedback mechanism of erythropoietin-stimulated erythropoiesis during iron/heme deficiency. Furthermore, ATF4 target genes are most highly activated during iron deficiency to maintain mitochondrial function and redox homeostasis, as well as to enable erythroid differentiation. Thus, heme and translation regulate erythropoiesis through 2 key signaling pathways, ISR and mTORC1, which are coordinated by HRI to circumvent ineffective erythropoiesis (IE). HRI-ISR is also activated to reduce the severity of β-thalassemia intermedia in the Hbbth1/th1 murine model. Recently, HRI has been implicated in the regulation of human fetal hemoglobin production. Therefore, HRI-ISR has emerged as a potential therapeutic target for hemoglobinopathies.
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27
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Bernecker C, Köfeler H, Pabst G, Trötzmüller M, Kolb D, Strohmayer K, Trajanoski S, Holzapfel GA, Schlenke P, Dorn I. Cholesterol Deficiency Causes Impaired Osmotic Stability of Cultured Red Blood Cells. Front Physiol 2019; 10:1529. [PMID: 31920725 PMCID: PMC6933518 DOI: 10.3389/fphys.2019.01529] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 12/04/2019] [Indexed: 11/17/2022] Open
Abstract
Ex vivo generation of red blood cells (cRBCs) is an attractive tool in basic research and for replacing blood components donated by volunteers. As a prerequisite for the survival of cRBCs during storage as well as in the circulation, the quality of the membrane is of utmost importance. Besides the cytoskeleton and embedded proteins, the lipid bilayer is critical for membrane integrity. Although cRBCs suffer from increased fragility, studies investigating the lipid content of their membrane are still lacking. We investigated the membrane lipid profile of cRBCs from CD34+ human stem and progenitor cells compared to native red blood cells (nRBCs) and native reticulocytes (nRETs). Ex vivo erythropoiesis was performed in a well-established liquid assay. cRBCs showed a maturation grade between nRETs and nRBCs. High-resolution mass spectrometry analysis for cholesterol and the major phospholipid classes, phosphatidylcholine, phosphatidylethanolamine, phosphatidylinositol, phosphatidylserine, sphingomyelin and lysophosphatidylcholin, demonstrated severe cholesterol deficiency in cRBCs. Although cRBCs showed normal deformability capacity, they suffered from increased hemolysis due to minimal changes in the osmotic conditions. After additional lipid supplementation, especially cholesterol during culturing, the cholesterol content of cRBCs increased to a subnormal amount. Concurrently, the osmotic resistance recovered completely and became comparable to that of nRETs. Minor differences in the amount of phospholipids in cRBCs compared to native cells could mainly be attributed to the ongoing membrane remodeling process from the reticulocyte to the erythrocyte stage. Obtained results demonstrate severe cholesterol deficiency as a reason for enhanced fragility of cRBCs. Therefore, the supplementation of lipids, especially cholesterol during ex vivo erythropoiesis may overcome this limitation and strengthens the survival of cRBCs ex vivo and in vivo.
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Affiliation(s)
- Claudia Bernecker
- Department for Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| | - Harald Köfeler
- Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Georg Pabst
- Institute of Molecular Biosciences, University of Graz, Biophysics Division, BioTechMed Graz, Graz, Austria
| | | | - Dagmar Kolb
- Center for Medical Research, Medical University of Graz, Graz, Austria.,Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, Graz, Austria
| | - Karl Strohmayer
- Institute of Biomechanics, Graz University of Technology, Graz, Austria
| | - Slave Trajanoski
- Center for Medical Research, Medical University of Graz, Graz, Austria
| | - Gerhard A Holzapfel
- Institute of Biomechanics, Graz University of Technology, Graz, Austria.,Department of Structural Engineering, Norwegian University of Science and Technology, Trondheim, Norway
| | - Peter Schlenke
- Department for Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
| | - Isabel Dorn
- Department for Blood Group Serology and Transfusion Medicine, Medical University of Graz, Graz, Austria
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28
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Dillon S, Staines KA, Millán JL, Farquharson C. How To Build a Bone: PHOSPHO1, Biomineralization, and Beyond. JBMR Plus 2019; 3:e10202. [PMID: 31372594 PMCID: PMC6659447 DOI: 10.1002/jbm4.10202] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/15/2019] [Accepted: 05/05/2019] [Indexed: 12/11/2022] Open
Abstract
Since its characterization two decades ago, the phosphatase PHOSPHO1 has been the subject of an increasing focus of research. This work has elucidated PHOSPHO1's central role in the biomineralization of bone and other hard tissues, but has also implicated the enzyme in other biological processes in health and disease. During mineralization PHOSPHO1 liberates inorganic phosphate (Pi) to be incorporated into the mineral phase through hydrolysis of its substrates phosphocholine (PCho) and phosphoethanolamine (PEA). Localization of PHOSPHO1 within matrix vesicles allows accumulation of Pi within a protected environment where mineral crystals may nucleate and subsequently invade the organic collagenous scaffold. Here, we examine the evidence for this process, first discussing the discovery and characterization of PHOSPHO1, before considering experimental evidence for its canonical role in matrix vesicle–mediated biomineralization. We also contemplate roles for PHOSPHO1 in disorders of dysregulated mineralization such as vascular calcification, along with emerging evidence of its activity in other systems including choline synthesis and homeostasis, and energy metabolism. © 2019 The Authors. JBMR Plus published by Wiley Periodicals, Inc. on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Scott Dillon
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Midlothian UK
| | | | - José Luis Millán
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla CA USA
| | - Colin Farquharson
- The Roslin Institute and Royal (Dick) School of Veterinary Studies University of Edinburgh, Easter Bush Midlothian UK
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29
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Zingariello M, Bardelli C, Sancillo L, Ciaffoni F, Genova ML, Girelli G, Migliaccio AR. Dexamethasone Predisposes Human Erythroblasts Toward Impaired Lipid Metabolism and Renders Their ex vivo Expansion Highly Dependent on Plasma Lipoproteins. Front Physiol 2019; 10:281. [PMID: 31019464 PMCID: PMC6458278 DOI: 10.3389/fphys.2019.00281] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/04/2019] [Indexed: 02/04/2023] Open
Abstract
Cultures of stem cells from discarded sources supplemented with dexamethasone, a synthetic glucocorticoid receptor agonist, generate cultured red blood cells (cRBCs) in numbers sufficient for transfusion. According to the literature, however, erythroblasts generated with dexamethasone exhibit low enucleation rates giving rise to cRBCs that survive poorly in vivo. The knowledge that the glucocorticoid receptor regulates lipid metabolism and that lipid composition dictates the fragility of the plasma membrane suggests that insufficient lipid bioavailability restrains generation of cRBCs. To test this hypothesis, we first compared the expression profiling of erythroblasts generated with or without dexamethasone. This analysis revealed differences in expression of 55 genes, 6 of which encoding proteins involved in lipid metabolism. These were represented by genes encoding the mitochondrial proteins 3-Hydroxymethyl-3-Methylglutaryl-CoA lyase, upregulated, and 3-Oxoacid CoA-Transferase1 and glycerol-3-phosphate acyltransferase1, both downregulated, and the proteins ATP-binding cassette transporter1 and Hydroxysteroid-17-Beta-Dehydrogenase7, upregulated, and cAMP-dependent protein kinase catalytic subunit beta, downregulated. This profiling predicts that dexamethasone, possibly by interfering with mitochondrial functions, impairs the intrinsic lipid metabolism making the synthesis of the plasma membrane of erythroid cells depend on lipid-uptake from external sources. Optical and electron microscopy analyses confirmed that the mitochondria of erythroblasts generated with dexamethasone are abnormal and that their plasma membranes present pebbles associated with membrane ruptures releasing exosomes and micro-vesicles. These results indicate that the lipid supplements of media currently available are not adequate for cRBCs. To identify better lipid supplements, we determined the number of erythroblasts generated in synthetic media supplemented with either currently used liposomes or with lipoproteins purified from human plasma [the total lipoprotein fraction (TL) or its high (HDL), low (LDL) and very low (VLDL) density lipoprotein components]. Both LDL and VLDL generated numbers of erythroid cells 3-2-fold greater than that observed in controls. These greater numbers were associated with 2-3-fold greater amplification of erythroid cells due both to increased proliferation and to resistance to stress-induced death. In conclusion, dexamethasone impairs lipid metabolism making ex vivo expansion of erythroid cells highly dependent on lipid absorbed from external sources and the use of LDL and VLDL as lipid supplements improves the generation of cRBCs.
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Affiliation(s)
- Maria Zingariello
- Unit of Microscopic and Ultrastructural Anatomy, Department of Medicine, University Campus Bio-Medico, Rome, Italy
| | - Claudio Bardelli
- Department of Biomedical and NeuroMotor Sciences, Alma Mater Studiorum University, Bologna, Italy
| | - Laura Sancillo
- Unit of Microscopic and Ultrastructural Anatomy, Department of Medicine, University Campus Bio-Medico, Rome, Italy
| | | | - Maria Luisa Genova
- Department of Biomedical and NeuroMotor Sciences, Alma Mater Studiorum University, Bologna, Italy
| | | | - Anna Rita Migliaccio
- Department of Biomedical and NeuroMotor Sciences, Alma Mater Studiorum University, Bologna, Italy
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30
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