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Usart M, Hansen N, Stetka J, Almeida Fonseca T, Guy A, Kimmerlin Q, Rai S, Hao-Shen H, Roux J, Dirnhofer S, Skoda RC. The glutaminase inhibitor CB-839 targets metabolic dependencies of JAK2-mutant hematopoiesis in MPN. Blood Adv 2024; 8:2312-2325. [PMID: 38295283 PMCID: PMC11117009 DOI: 10.1182/bloodadvances.2023010950] [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: 06/12/2023] [Revised: 01/04/2024] [Accepted: 01/21/2024] [Indexed: 02/02/2024] Open
Abstract
ABSTRACT Hyperproliferation of myeloid and erythroid cells in myeloproliferative neoplasms (MPN) driven by the JAK2-V617F mutation is associated with altered metabolism. Given the central role of glutamine in anabolic and catabolic pathways, we examined the effects of pharmacologically inhibiting glutaminolysis, that is, the conversion of glutamine (Gln) to glutamate (Glu), using CB-839, a small molecular inhibitor of the enzyme glutaminase (GLS). We show that CB-839 strongly reduced the mitochondrial respiration rate of bone marrow cells from JAK2-V617F mutant (VF) mice, demonstrating a marked dependence of these cells on Gln-derived ATP production. Consistently, in vivo treatment with CB-839 normalized blood glucose levels, reduced splenomegaly and decreased erythrocytosis in VF mice. These effects were more pronounced when CB-839 was combined with the JAK1/2 inhibitor ruxolitinib or the glycolysis inhibitor 3PO, indicating possible synergies when cotargeting different metabolic and oncogenic pathways. Furthermore, we show that the inhibition of glutaminolysis with CB-839 preferentially lowered the proportion of JAK2-mutant hematopoietic stem cells (HSCs). The total number of HSCs was decreased by CB-839, primarily by reducing HSCs in the G1 phase of the cell cycle. CB-839 in combination with ruxolitinib also strongly reduced myelofibrosis at later stages of MPN. In line with the effects shown in mice, proliferation of CD34+ hematopoietic stem and progenitor cells from polycythemia vera patients was inhibited by CB-839 at nanomolar concentrations. These data suggest that inhibiting GLS alone or in combination with inhibitors of glycolysis or JAK2 inhibitors represents an attractive new therapeutic approach to MPN.
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Affiliation(s)
- Marc Usart
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Nils Hansen
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Jan Stetka
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Tiago Almeida Fonseca
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Alexandre Guy
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
- UMR1034, Inserm, Biology of Cardiovascular Diseases, University of Bordeaux, Pessac, France
| | - Quentin Kimmerlin
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Shivam Rai
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Hui Hao-Shen
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
| | - Julien Roux
- Bioinformatics core facility, Department of Biomedicine, University of Basel, Basel, Switzerland
- Swiss Institute of Bioinformatics, Basel, Switzerland
| | - Stefan Dirnhofer
- Department of Pathology, University Hospital Basel, Basel, Switzerland
| | - Radek C. Skoda
- Experimental Hematology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland
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2
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Kurochkina NS, Orlova MA, Vigovskiy MA, Zgoda VG, Vepkhvadze TF, Vavilov NE, Makhnovskii PA, Grigorieva OA, Boroday YR, Philippov VV, Lednev EM, Efimenko AY, Popov DV. Age-related changes in human skeletal muscle transcriptome and proteome are more affected by chronic inflammation and physical inactivity than primary aging. Aging Cell 2024; 23:e14098. [PMID: 38379415 PMCID: PMC11019131 DOI: 10.1111/acel.14098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 01/13/2024] [Accepted: 01/13/2024] [Indexed: 02/22/2024] Open
Abstract
Evaluation of the influence of primary and secondary aging on the manifestation of molecular and cellular hallmarks of aging is a challenging and currently unresolved issue. Our study represents the first demonstration of the distinct role of primary aging and chronic inflammation/physical inactivity - the most important drivers of secondary aging, in the regulation of transcriptomic and proteomic profiles in human skeletal muscle. To achieve this purpose, young healthy people (n = 15), young (n = 8) and older (n = 37) patients with knee/hip osteoarthritis, a model to study the effect of long-term inactivity and chronic inflammation on the vastus lateralis muscle, were included in the study. It was revealed that widespread and substantial age-related changes in gene expression in older patients relative to young healthy people (~4000 genes regulating mitochondrial function, proteostasis, cell membrane, secretory and immune response) were related to the long-term physical inactivity and chronic inflammation rather than primary aging. Primary aging contributed mainly to the regulation of genes (~200) encoding nuclear proteins (regulators of DNA repair, RNA processing, and transcription), mitochondrial proteins (genes encoding respiratory enzymes, mitochondrial complex assembly factors, regulators of cristae formation and mitochondrial reactive oxygen species production), as well as regulators of proteostasis. It was found that proteins associated with aging were regulated mainly at the post-transcriptional level. The set of putative primary aging genes and their potential transcriptional regulators can be used as a resource for further targeted studies investigating the role of individual genes and related transcription factors in the emergence of a senescent cell phenotype.
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Affiliation(s)
- Nadia S. Kurochkina
- Institute of Biomedical Problems of the Russian Academy of SciencesMoscowRussia
| | - Mira A. Orlova
- Institute of Biomedical Problems of the Russian Academy of SciencesMoscowRussia
| | - Maksim A. Vigovskiy
- Medical Research and Educational Center of Lomonosov Moscow State UniversityMoscowRussia
| | | | | | | | | | - Olga A. Grigorieva
- Medical Research and Educational Center of Lomonosov Moscow State UniversityMoscowRussia
| | - Yakov R. Boroday
- Medical Research and Educational Center of Lomonosov Moscow State UniversityMoscowRussia
| | - Vladislav V. Philippov
- Medical Research and Educational Center of Lomonosov Moscow State UniversityMoscowRussia
| | - Egor M. Lednev
- Institute of Biomedical Problems of the Russian Academy of SciencesMoscowRussia
| | - Anastasia Yu. Efimenko
- Medical Research and Educational Center of Lomonosov Moscow State UniversityMoscowRussia
| | - Daniil V. Popov
- Institute of Biomedical Problems of the Russian Academy of SciencesMoscowRussia
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3
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Xiao R, Zhang L, Xin Z, Zhu J, Zhang Q, Zheng G, Chu S, Wu J, Zhang L, Wan Y, Chen X, Yuan W, Zhang Z, Zhu X, Fang X. Disruption of mitochondrial energy metabolism is a putative pathogenesis of Diamond-Blackfan anemia. iScience 2024; 27:109172. [PMID: 38414864 PMCID: PMC10897903 DOI: 10.1016/j.isci.2024.109172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 12/23/2023] [Accepted: 02/06/2024] [Indexed: 02/29/2024] Open
Abstract
Energy metabolism in the context of erythropoiesis and related diseases remains largely unexplored. Here, we developed a primary cell model by differentiating hematopoietic stem progenitor cells toward the erythroid lineage and suppressing the mitochondrial oxidative phosphorylation (OXPHOS) pathway. OXPHOS suppression led to differentiation failure of erythroid progenitors and defects in ribosome biogenesis. Ran GTPase-activating protein 1 (RanGAP1) was identified as a target of mitochondrial OXPHOS for ribosomal defects during erythropoiesis. Overexpression of RanGAP1 largely alleviated erythroid defects resulting from OXPHOS suppression. Coenzyme Q10, an activator of OXPHOS, largely rescued erythroid defects and increased RanGAP1 expression. Patients with Diamond-Blackfan anemia (DBA) exhibited OXPHOS suppression and a concomitant suppression of ribosome biogenesis. RNA-seq analysis implied that the substantial mutation (approximately 10%) in OXPHOS genes accounts for OXPHOS suppression in these patients. Conclusively, OXPHOS disruption and the associated disruptive mitochondrial energy metabolism are linked to the pathogenesis of DBA.
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Affiliation(s)
- Rudan Xiao
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Lijuan Zhang
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Zijuan Xin
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Junwei Zhu
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
| | - Qian Zhang
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
| | - Guangmin Zheng
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Siyun Chu
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
| | - Jing Wu
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
| | - Lu Zhang
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yang Wan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Xiaojuan Chen
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Weiping Yuan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Zhaojun Zhang
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, P.R. China
- Beijing Key Laboratory of Genome and Precision Medicine Technologies, Beijing 100101, P.R. China
| | - Xiaofan Zhu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China
| | - Xiangdong Fang
- Beijing Institute of Genomics, Chinese Academy of Sciences & China National Center for Bioinformation, Beijing 100101, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
- Sino-Danish College, University of Chinese Academy of Sciences, Beijing 101408, P.R. China
- Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, P.R. China
- Beijing Key Laboratory of Genome and Precision Medicine Technologies, Beijing 100101, P.R. China
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4
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Shi D, Wang B, Li H, Lian Y, Ma Q, Liu T, Cao M, Ma Y, Shi L, Yuan W, Shi J, Chu Y. Pseudouridine synthase 1 regulates erythropoiesis via transfer RNAs pseudouridylation and cytoplasmic translation. iScience 2024; 27:109265. [PMID: 38450158 PMCID: PMC10915626 DOI: 10.1016/j.isci.2024.109265] [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: 06/29/2023] [Revised: 12/21/2023] [Accepted: 02/14/2024] [Indexed: 03/08/2024] Open
Abstract
Pseudouridylation plays a regulatory role in various physiological and pathological processes. A prime example is the mitochondrial myopathy, lactic acidosis, and sideroblastic anemia syndrome (MLASA), characterized by defective pseudouridylation resulting from genetic mutations in pseudouridine synthase 1 (PUS1). However, the roles and mechanisms of pseudouridylation in normal erythropoiesis and MLASA-related anemia remain elusive. We established a mouse model carrying a point mutation (R110W) in the enzymatic domain of PUS1, mimicking the common mutation in human MLASA. Pus1-mutant mice exhibited anemia at 4 weeks old. Impaired mitochondrial oxidative phosphorylation was also observed in mutant erythroblasts. Mechanistically, mutant erythroblasts showed defective pseudouridylation of targeted tRNAs, altered tRNA profiles, decreased translation efficiency of ribosomal protein genes, and reduced globin synthesis, culminating in ineffective erythropoiesis. Our study thus provided direct evidence that pseudouridylation participates in erythropoiesis in vivo. We demonstrated the critical role of pseudouridylation in regulating tRNA homeostasis, cytoplasmic translation, and erythropoiesis.
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Affiliation(s)
- Deyang Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
- Department of Hematology, Henan Provincial People’s Hospital, People’s Hospital of Zhengzhou University, Zhengzhou, Henan 450003, China
| | - Bichen Wang
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Haoyuan Li
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Yu Lian
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
| | - Qiuyi Ma
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Tong Liu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Mutian Cao
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Yuanwu Ma
- Key Laboratory of Human Disease Comparative Medicine, National Health Commission of China (NHC), Institute of Laboratory Animal Science, Peking Union Medicine College, Chinese Academy of Medical Sciences, Beijing 100021, China
| | - Lei Shi
- Key Laboratory of Breast Cancer Prevention and Therapy (Ministry of Education), Haihe Laboratory of Cell Ecosystem, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Tianjin Medical University Cancer Institute and Hospital, Tianjin Medical University, Tianjin, China
| | - Weiping Yuan
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Jun Shi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
| | - Yajing Chu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300020, China
- Tianjin Institutes of Health Science, Tianjin 301600, China
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5
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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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6
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Yang K, Zhu T, Yin J, Zhang Q, Li J, Fan H, Han G, Xu W, Liu N, Lv X. The non-canonical poly(A) polymerase FAM46C promotes erythropoiesis. J Genet Genomics 2024:S1673-8527(24)00032-8. [PMID: 38403115 DOI: 10.1016/j.jgg.2024.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 02/19/2024] [Accepted: 02/19/2024] [Indexed: 02/27/2024]
Abstract
The post-transcriptional regulation of mRNA is a crucial component of gene expression. The disruption of this process can have detrimental effects on normal development and give rise to various diseases. The search for novel post-transcriptional regulators and the exploration of their roles are essential for understanding development and disease. Through a multimodal analysis of red blood cell trait genome-wide association studies (GWAS) and transcriptomes of erythropoiesis, we identified FAM46C, a non-canonical RNA poly(A) polymerase, as a necessary factor for proper red blood cell development. FAM46C is highly expressed in the late stages of the erythroid lineage, and its developmental upregulation is controlled by an erythroid-specific enhancer. We demonstrate that FAM46C stabilizes mRNA and regulates erythroid differentiation in a polymerase activity-dependent manner. Furthermore, we identified transcripts of lysosome and mitochondria components as highly confident in vivo targets of FAM46C, which aligns with the need of maturing red blood cells for substantial clearance of organelles and maintenance of cellular redox homeostasis. In conclusion, our study unveils a novel role of FAM46C in positively regulating lysosome and mitochondria components, thereby promoting erythropoiesis.
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Affiliation(s)
- Ke Yang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Liangzhu Laboratory, Zhejiang University, Hangzhou, Zhejiang 311121, China; Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang 311121, China; The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China.
| | - Tianqi Zhu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Liangzhu Laboratory, Zhejiang University, Hangzhou, Zhejiang 311121, China; Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang 311121, China
| | - Jiaying Yin
- The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Qiaoli Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Liangzhu Laboratory, Zhejiang University, Hangzhou, Zhejiang 311121, China; Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang 311121, China
| | - Jing Li
- The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Hong Fan
- The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Gaijing Han
- The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China
| | - Weiyin Xu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Liangzhu Laboratory, Zhejiang University, Hangzhou, Zhejiang 311121, China; Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang 311121, China
| | - Nan Liu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang 310003, China; Liangzhu Laboratory, Zhejiang University, Hangzhou, Zhejiang 311121, China; Institute of Hematology, Zhejiang University, Hangzhou, Zhejiang 311121, China.
| | - Xiang Lv
- The State Key Laboratory for Complex, Severe, and Rare Diseases, Haihe Laboratory of Cell Ecosystem, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China; Medical Epigenetics Research Center, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100005, China.
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7
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Zhang D, Ruan J, Peng S, Li J, Hu X, Zhang Y, Zhang T, Ge Y, Zhu Z, Xiao X, Zhu Y, Li X, Li T, Zhou L, Gao Q, Zheng G, Zhao B, Li X, Zhu Y, Wu J, Li W, Zhao J, Ge WP, Xu T, Jia JM. Synaptic-like transmission between neural axons and arteriolar smooth muscle cells drives cerebral neurovascular coupling. Nat Neurosci 2024; 27:232-248. [PMID: 38168932 PMCID: PMC10849963 DOI: 10.1038/s41593-023-01515-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/02/2023] [Indexed: 01/05/2024]
Abstract
Neurovascular coupling (NVC) is important for brain function and its dysfunction underlies many neuropathologies. Although cell-type specificity has been implicated in NVC, how active neural information is conveyed to the targeted arterioles in the brain remains poorly understood. Here, using two-photon focal optogenetics in the mouse cerebral cortex, we demonstrate that single glutamatergic axons dilate their innervating arterioles via synaptic-like transmission between neural-arteriolar smooth muscle cell junctions (NsMJs). The presynaptic parental-daughter bouton makes dual innervations on postsynaptic dendrites and on arteriolar smooth muscle cells (aSMCs), which express many types of neuromediator receptors, including a low level of glutamate NMDA receptor subunit 1 (Grin1). Disruption of NsMJ transmission by aSMC-specific knockout of GluN1 diminished optogenetic and whisker stimulation-caused functional hyperemia. Notably, the absence of GluN1 subunit in aSMCs reduced brain atrophy following cerebral ischemia by preventing Ca2+ overload in aSMCs during arteriolar constriction caused by the ischemia-induced spreading depolarization. Our findings reveal that NsMJ transmission drives NVC and open up a new avenue for studying stroke.
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Affiliation(s)
- Dongdong Zhang
- School of Life Sciences, Fudan University, Shanghai, China
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Jiayu Ruan
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Shiyu Peng
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
| | - Jinze Li
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Xu Hu
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Yiyi Zhang
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Tianrui Zhang
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Yaping Ge
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Zhu Zhu
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Xian Xiao
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Yunxu Zhu
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Xuzhao Li
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Tingbo Li
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Lili Zhou
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Qingzhu Gao
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Guoxiao Zheng
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
| | - Bingrui Zhao
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China
| | - Xiangqing Li
- College of Artificial Intelligence and Big Data for Medical Sciences, Shandong Academy of Medical Sciences, Shandong First Medical University, Jinan, China
| | - Yanming Zhu
- Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Program in Speech and Hearing Bioscience and Technology, Harvard Medical School, Boston, MA, USA
| | - Jinsong Wu
- Department of Neurosurgery, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
- Brain Function Laboratory, Neurosurgical Institute of Fudan University, Shanghai, China
- Institute of Brain-Intelligence Technology, Zhangjiang Lab, Shanghai, China, Shanghai, China
- Shanghai Key Laboratory of Brain Function and Restoration and Neural Regeneration, Shanghai, China
- Shanghai Clinical Medical Center of Neurosurgery, Shanghai, China
| | - Wensheng Li
- Department of Anatomy, Histology, and Embryology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jingwei Zhao
- Department of Anatomy, Histology, and Embryology, Research Center of Systemic Medicine, School of Basic Medicine, and Department of Pathology of the Sir Run-Run Shaw Hospital, The Cryo-EM Center, NHC and CAMS Key Laboratory of Medical Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Woo-Ping Ge
- Chinese Institute for Brain Research, Beijing, Beijing, China
| | - Tian Xu
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
| | - Jie-Min Jia
- Key Laboratory of Growth Regulation and Translation Research of Zhejiang Province, School of Life Sciences, Westlake University, Hangzhou, China.
- Laboratory of Neurovascular Biology, Institute of Basic Medical Sciences, Westlake Institute for Advanced Study, Hangzhou, China.
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
- Laboratory of Neurovascular Biology, School of Life Sciences, Westlake University, Hangzhou, China.
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8
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Thind MK, Uhlig HH, Glogauer M, Palaniyar N, Bourdon C, Gwela A, Lancioni CL, Berkley JA, Bandsma RHJ, Farooqui A. A metabolic perspective of the neutrophil life cycle: new avenues in immunometabolism. Front Immunol 2024; 14:1334205. [PMID: 38259490 PMCID: PMC10800387 DOI: 10.3389/fimmu.2023.1334205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 12/15/2023] [Indexed: 01/24/2024] Open
Abstract
Neutrophils are the most abundant innate immune cells. Multiple mechanisms allow them to engage a wide range of metabolic pathways for biosynthesis and bioenergetics for mediating biological processes such as development in the bone marrow and antimicrobial activity such as ROS production and NET formation, inflammation and tissue repair. We first discuss recent work on neutrophil development and functions and the metabolic processes to regulate granulopoiesis, neutrophil migration and trafficking as well as effector functions. We then discuss metabolic syndromes with impaired neutrophil functions that are influenced by genetic and environmental factors of nutrient availability and usage. Here, we particularly focus on the role of specific macronutrients, such as glucose, fatty acids, and protein, as well as micronutrients such as vitamin B3, in regulating neutrophil biology and how this regulation impacts host health. A special section of this review primarily discusses that the ways nutrient deficiencies could impact neutrophil biology and increase infection susceptibility. We emphasize biochemical approaches to explore neutrophil metabolism in relation to development and functions. Lastly, we discuss opportunities and challenges to neutrophil-centered therapeutic approaches in immune-driven diseases and highlight unanswered questions to guide future discoveries.
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Affiliation(s)
- Mehakpreet K Thind
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Holm H Uhlig
- Translational Gastroenterology Unit, Experimental Medicine, University of Oxford, John Radcliffe Hospital, Oxford, United Kingdom
- Department of Paediatrics, University of Oxford, Oxford, United Kingdom
- Biomedical Research Centre, University of Oxford, Oxford, United Kingdom
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
- Department of Dental Oncology and Maxillofacial Prosthetics, Princess Margaret Cancer Centre, University Health Network, Toronto, ON, Canada
| | - Nades Palaniyar
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- Laboratory Medicine and Pathobiology, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Institute of Medical Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Celine Bourdon
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
| | - Agnes Gwela
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
| | - Christina L Lancioni
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Department of Pediatrics, Oregon Health and Science University, Portland, OR, United States
| | - James A Berkley
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Kenya Medical Research Institute (KEMRI)/Wellcome Trust Research Programme, Centre for Geographic Medicine Research, Kilifi, Kenya
- Centre for Tropical Medicine and Global Health, University of Oxford, Oxford, United Kingdom
| | - Robert H J Bandsma
- Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Laboratory of Pediatrics, Center for Liver, Digestive, and Metabolic Diseases, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
- Division of Gastroenterology, Hepatology, and Nutrition, The Hospital for Sick Children, Toronto, ON, Canada
| | - Amber Farooqui
- Translational Medicine Program, The Hospital for Sick Children, Toronto, ON, Canada
- The Childhood Acute Illness & Nutrition Network (CHAIN), Nairobi, Kenya
- Omega Laboratories Inc, Mississauga, ON, Canada
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9
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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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10
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Cortés M, Brischetto A, Martinez-Campanario MC, Ninfali C, Domínguez V, Fernández S, Celis R, Esteve-Codina A, Lozano JJ, Sidorova J, Garrabou G, Siegert AM, Enrich C, Pintado B, Morales-Ruiz M, Castro P, Cañete JD, Postigo A. Inflammatory macrophages reprogram to immunosuppression by reducing mitochondrial translation. Nat Commun 2023; 14:7471. [PMID: 37978290 PMCID: PMC10656499 DOI: 10.1038/s41467-023-42277-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 10/05/2023] [Indexed: 11/19/2023] Open
Abstract
Acute inflammation can either resolve through immunosuppression or persist, leading to chronic inflammation. These transitions are driven by distinct molecular and metabolic reprogramming of immune cells. The anti-diabetic drug Metformin inhibits acute and chronic inflammation through mechanisms still not fully understood. Here, we report that the anti-inflammatory and reactive-oxygen-species-inhibiting effects of Metformin depend on the expression of the plasticity factor ZEB1 in macrophages. Using mice lacking Zeb1 in their myeloid cells and human patient samples, we show that ZEB1 plays a dual role, being essential in both initiating and resolving inflammation by inducing macrophages to transition into an immunosuppressed state. ZEB1 mediates these diverging effects in inflammation and immunosuppression by modulating mitochondrial content through activation of autophagy and inhibition of mitochondrial protein translation. During the transition from inflammation to immunosuppression, Metformin mimics the metabolic reprogramming of myeloid cells induced by ZEB1. Mechanistically, in immunosuppression, ZEB1 inhibits amino acid uptake, leading to downregulation of mTORC1 signalling and a decrease in mitochondrial translation in macrophages. These results identify ZEB1 as a driver of myeloid cell metabolic plasticity, suggesting that targeting its expression and function could serve as a strategy to modulate dysregulated inflammation and immunosuppression.
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Affiliation(s)
- Marlies Cortés
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain.
| | - Agnese Brischetto
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - M C Martinez-Campanario
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - Chiara Ninfali
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain
| | - Verónica Domínguez
- National Center of Biotechnology (CSIC-CNB) and Center for Molecular Biology Severo Ochoa (CSIC/UAM-CBMSO) Transgenesis Facility, Higher Research Council (CSIC) and Autonomous University of Madrid (UAM), Cantoblanco, 28049, Madrid, Spain
| | - Sara Fernández
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Raquel Celis
- Arthritis Unit, Dept. of Rheumathology, Hospital Clínic and IDIBAPS, 08036, Barcelona, Spain
| | | | - Juan J Lozano
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
| | - Julia Sidorova
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
| | - Gloria Garrabou
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Anna-Maria Siegert
- MRC Metabolic Diseases Unit, University of Cambridge Metabolic Research Laboratories, Wellcome Trust-MRC Institute of Metabolic Science, Addenbrooke's Hospital, Cambridge, CB1 0QQ, UK
| | - Carlos Enrich
- Department of Biomedicine, University of Barcelona School of Medicine and Health Sciences, 08036, Barcelona, Spain
| | - Belén Pintado
- National Center of Biotechnology (CSIC-CNB) and Center for Molecular Biology Severo Ochoa (CSIC/UAM-CBMSO) Transgenesis Facility, Higher Research Council (CSIC) and Autonomous University of Madrid (UAM), Cantoblanco, 28049, Madrid, Spain
| | - Manuel Morales-Ruiz
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain
- Department of Biomedicine, University of Barcelona School of Medicine and Health Sciences, 08036, Barcelona, Spain
- Department of Biochemistry and Molecular Genetics, Hospital Clínic of Barcelona and IDIBAPS, 08036, Barcelona, Spain
| | - Pedro Castro
- Medical Intensive Care Unit and Department of Internal Medicine, Hospital Clínic of Barcelona, Group of Muscle Research and Mitochondrial Function, IDIBAPS, and CIBERER, 08036, Barcelona, Spain
| | - Juan D Cañete
- Arthritis Unit, Dept. of Rheumathology, Hospital Clínic and IDIBAPS, 08036, Barcelona, Spain
| | - Antonio Postigo
- Group of Gene Regulation in Stem Cells, Cell Plasticity, Differentiation, and Cancer, IDIBAPS, 08036, Barcelona, Spain.
- Biomedical Research Networking Centers in Digestive and Hepatic Diseases (CIBERehd), Carlos III Health Institute, 08036, Barcelona, Spain.
- Molecular Targets Program, Division of Oncology, Department of Medicine, J.G. Brown Cancer Center, Louisville, KY, 40202, USA.
- ICREA, 08010, Barcelona, Spain.
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11
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Nagdev PK, Agnivesh PK, Roy A, Sau S, Kalia NP. Exploring and exploiting the host cell autophagy during Mycobacterium tuberculosis infection. Eur J Clin Microbiol Infect Dis 2023; 42:1297-1315. [PMID: 37740791 DOI: 10.1007/s10096-023-04663-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/06/2023] [Indexed: 09/25/2023]
Abstract
Tuberculosis, caused by Mycobacterium tuberculosis, is a fatal infectious disease that prevails to be the second leading cause of death from a single infectious agent despite the availability of multiple drugs for treatment. The current treatment regimen involves the combination of several drugs for 6 months that remain ineffective in completely eradicating the infection because of several drawbacks, such as the long duration of treatment and the side effects of drugs causing non-adherence of patients to the treatment regimen. Autophagy is an intracellular degradative process that eliminates pathogens at the early stages of infection. Mycobacterium tuberculosis's unique autophagy-blocking capability makes it challenging to eliminate compared to usual pathogens. The present review discusses recent advances in autophagy-inhibiting factors and mechanisms that could be exploited to identify autophagy-inducing chemotherapeutics that could be used as adjunctive therapy with the existing first-line anti-TB agent to shorten the duration of therapy and enhance cure rates from multidrug-resistant tuberculosis (MDR-TB) and extreme drug-resistant tuberculosis (XDR-TB).
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Affiliation(s)
- Pavan Kumar Nagdev
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Puja Kumari Agnivesh
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Arnab Roy
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Shashikanta Sau
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India
| | - Nitin Pal Kalia
- Department of Biological Sciences (Pharmacology and Toxicology), National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, 500037, India.
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12
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Ferrer-Vicens I, Ferguson DCJ, Wilson MC, Heesom KJ, Bieker JJ, Frayne J. A novel human cellular model of CDA IV enables comprehensive analysis revealing the molecular basis of the disease phenotype. Blood 2023; 141:3039-3054. [PMID: 37084386 PMCID: PMC10315626 DOI: 10.1182/blood.2022018735] [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: 10/13/2022] [Revised: 02/16/2023] [Accepted: 02/17/2023] [Indexed: 04/23/2023] Open
Abstract
Red blood cell disorders can result in severe anemia. One such disease congenital dyserythropoietic anemia IV (CDA IV) is caused by the heterozygous mutation E325K in the transcription factor KLF1. However, studying the molecular basis of CDA IV is severely impeded by the paucity of suitable and adequate quantities of material from patients with anemia and the rarity of the disease. We, therefore, took a novel approach, creating a human cellular disease model system for CDA IV that accurately recapitulates the disease phenotype. Next, using comparative proteomics, we reveal extensive distortion of the proteome and a wide range of disordered biological processes in CDA IV erythroid cells. These include downregulated pathways the governing cell cycle, chromatin separation, DNA repair, cytokinesis, membrane trafficking, and global transcription, and upregulated networks governing mitochondrial biogenesis. The diversity of such pathways elucidates the spectrum of phenotypic abnormalities that occur with CDA IV and impairment to erythroid cell development and survival, collectively explaining the CDA IV disease phenotype. The data also reveal far more extensive involvement of KLF1 in previously assigned biological processes, along with novel roles in the regulation of intracellular processes not previously attributed to this transcription factor. Overall, the data demonstrate the power of such a model cellular system to unravel the molecular basis of disease and how studying the effects of a rare mutation can reveal fundamental biology.
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Affiliation(s)
| | | | - Marieangela C. Wilson
- Proteomics Facility, Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - Kate J. Heesom
- Proteomics Facility, Faculty of Life Sciences, University of Bristol, Bristol, United Kingdom
| | - James J. Bieker
- Department of Cell, Developmental, and Regenerative Biology, Mount Sinai School of Medicine, New York, NY
| | - Jan Frayne
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
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13
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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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14
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Matte A, Federti E, De Franceschi L. Erythrocyte pyruvate kinase activation in red cell disorders. Curr Opin Hematol 2023; 30:93-98. [PMID: 36853806 DOI: 10.1097/moh.0000000000000758] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
PURPOSE OF REVIEW In red cells, pyruvate kinase is a key enzyme in the final step of glycolytic degradative process, which generates a constant energy supply via ATP production. This commentary discusses recent findings on pyruvate kinase activators as new therapeutic option in hereditary red cell disorders such as thalassemic syndromes or sickle cell disease (SCD). RECENT FINDINGS Mitapivat and etavopivat are two oral pyruvate kinase activators. Studies in a mouse model for β thalassemia have shown beneficial effects of mitapivat on both red cell survival and ineffective erythropoiesis, with an amelioration of iron homeostasis. This was confirmed in a proof-of-concept study in patients with nontransfusion-dependent thalassemias. Both mitapivat and etavopivat have been evaluated in mouse models for SCD, showing an increased 2-3DPG/ATP ratio and a reduction in haemolysis as well as in sickling. These data were confirmed in proof-of-concept clinical studies with both molecules carried in patients with SCD. SUMMARY Preclinical and clinical evidence indicate that pyruvate kinase activators represent new therapeutic option in hemoglobinopathies or SCD. Other red cell disorders such as hereditary spherocytosis or hereditary anaemias characterized by defective erythropoiesis might represent additional areas to investigate the therapeutic impact of pyruvate kinase activators.
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Affiliation(s)
- Alessandro Matte
- Department of Medicine, University of Verona and AOUI Verona, Verona, Italy
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15
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Finding the balance: The elusive mechanisms underlying auditory hair cell mitochondrial biogenesis and mitophagy. Hear Res 2023; 428:108664. [PMID: 36566644 DOI: 10.1016/j.heares.2022.108664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 11/23/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022]
Abstract
In all cell types, mitochondrial biogenesis is balanced with mitophagy to maintain a healthy mitochondrial pool that sustains specific energetic demands. Cell types that have a higher energetic burden, such as skeletal muscle cells and cardiomyocytes, will subsequently develop high mitochondrial volumes. In these cells, calcium influx during activity triggers cascades leading to activation of the co-transcriptional regulation factor PGC-1α, a master regulator of mitochondrial biogenesis, in a well-defined pathway. Despite the advantages in ATP production, high mitochondrial volumes might prove to be perilous, as it increases exposure to reactive oxygen species produced during oxidative phosphorylation. Mechanosensory hair cells are highly metabolically active cells, with high total mitochondrial volumes to meet that demand. However, the mechanisms leading to expansion and maintenance of the hair cell mitochondrial pool are not well defined. Calcium influx during mechanotransduction and synaptic transmission regulate hair cell mitochondria, leading to a possibility that similar to skeletal muscle and cardiomyocytes, intracellular calcium underlies the expansion of the hair cell mitochondrial volume. This review briefly summarizes the potential mechanisms underlying mitochondrial biogenesis in other cell types and in hair cells. We propose that hair cell mitochondrial biogenesis is primarily product of cellular differentiation rather than calcium influx, and that the hair cell high mitochondrial volume renders them more susceptible to reactive oxygen species increased by calcium flux than other cell types.
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16
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Park HJ, Gregory MA, Zaberezhnyy V, Goodspeed A, Jordan CT, Kieft JS, DeGregori J. Therapeutic resistance in acute myeloid leukemia cells is mediated by a novel ATM/mTOR pathway regulating oxidative phosphorylation. eLife 2022; 11:e79940. [PMID: 36259537 PMCID: PMC9645811 DOI: 10.7554/elife.79940] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 10/17/2022] [Indexed: 11/13/2022] Open
Abstract
While leukemic cells are susceptible to various therapeutic insults, residence in the bone marrow microenvironment typically confers protection from a wide range of drugs. Thus, understanding the unique molecular changes elicited by the marrow is of critical importance toward improving therapeutic outcomes. In this study, we demonstrate that aberrant activation of oxidative phosphorylation serves to induce therapeutic resistance in FLT3 mutant human AML cells challenged with FLT3 inhibitor drugs. Importantly, our findings show that AML cells are protected from apoptosis following FLT3 inhibition due to marrow-mediated activation of ATM, which in turn upregulates oxidative phosphorylation via mTOR signaling. mTOR is required for the bone marrow stroma-dependent maintenance of protein translation, with selective polysome enrichment of oxidative phosphorylation transcripts, despite FLT3 inhibition. To investigate the therapeutic significance of this finding, we tested the mTOR inhibitor everolimus in combination with the FLT3 inhibitor quizartinib in primary human AML xenograft models. While marrow resident AML cells were highly resistant to quizartinib alone, the addition of everolimus induced profound reduction in tumor burden and prevented relapse. Taken together, these data provide a novel mechanistic understanding of marrow-based therapeutic resistance and a promising strategy for improved treatment of FLT3 mutant AML patients.
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Affiliation(s)
- Hae J Park
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado Anschutz Medical CampusAuroraUnited States
- Medical Scientist Training Program, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Mark A Gregory
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Vadym Zaberezhnyy
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Andrew Goodspeed
- Department of Pharmacology, University of Colorado Anschutz Medical CampusAuroraUnited States
- University of Colorado Comprehensive Cancer Center, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Craig T Jordan
- Department of Medicine, Section of Hematology, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - Jeffrey S Kieft
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado Anschutz Medical CampusAuroraUnited States
| | - James DeGregori
- Department of Biochemistry and Molecular Genetics, School of Medicine, University of Colorado Anschutz Medical CampusAuroraUnited States
- University of Colorado Comprehensive Cancer Center, University of Colorado Anschutz Medical CampusAuroraUnited States
- Department of Medicine, Section of Hematology, University of Colorado Anschutz Medical CampusAuroraUnited States
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17
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Li J, Quan C, He YL, Cao Y, Chen Y, Wang YF, Wu LY. Autophagy regulated by the HIF/REDD1/mTORC1 signaling is progressively increased during erythroid differentiation under hypoxia. Front Cell Dev Biol 2022; 10:896893. [PMID: 36092719 PMCID: PMC9448881 DOI: 10.3389/fcell.2022.896893] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 08/04/2022] [Indexed: 11/13/2022] Open
Abstract
For hematopoietic stem and progenitor cells (HSPCs), hypoxia is a specific microenvironment known as the hypoxic niche. How hypoxia regulates erythroid differentiation of HSPCs remains unclear. In this study, we show that hypoxia evidently accelerates erythroid differentiation, and autophagy plays a pivotal role in this process. We further determine that mTORC1 signaling is suppressed by hypoxia to relieve its inhibition of autophagy, and with the process of erythroid differentiation, mTORC1 activity gradually decreases and autophagy activity increases accordingly. Moreover, we provide evidence that the HIF-1 target gene REDD1 is upregulated to suppress mTORC1 signaling and enhance autophagy, thereby promoting erythroid differentiation under hypoxia. Together, our study identifies that the enhanced autophagy by hypoxia favors erythroid maturation and elucidates a new regulatory pattern whereby autophagy is progressively increased during erythroid differentiation, which is driven by the HIF-1/REDD1/mTORC1 signaling in a hypoxic niche.
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18
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Stolla MC, Reilly A, Bergantinos R, Stewart S, Thom N, Clough CA, Wellington R, Stolitenko R, Abkowitz JL, Doulatov S. ATG4A regulates human erythroid maturation and mitochondrial clearance. Blood Adv 2022; 6:3579-3589. [PMID: 35443024 PMCID: PMC9631553 DOI: 10.1182/bloodadvances.2021005910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Accepted: 03/15/2022] [Indexed: 01/09/2023] Open
Abstract
Autophagy is a self-degradation pathway that is essential for erythropoiesis. During erythroid differentiation, autophagy facilitates the degradation of macromolecules and the programmed clearance of mitochondria. Impaired mitochondrial clearance results in anemia and alters the lifespan of red blood cells in vivo. While several essential autophagy genes contribute to autophagy in erythropoiesis, little is known about erythroid-specific mediators of this pathway. Genetic analysis of primary human erythroid and nonerythroid cells revealed the selective upregulation of the core autophagy gene ATG4A in maturing human erythroid cells. Because the function of ATG4A in erythropoiesis is unknown, we evaluated its role using an ex vivo model of human erythropoiesis. Depletion of ATG4A in primary human hematopoietic stem and progenitor cells selectively impaired erythroid but not myeloid lineage differentiation, resulting in reduced red cell production, delayed terminal differentiation, and impaired enucleation. Loss of ATG4A impaired autophagy and mitochondrial clearance, giving rise to reticulocytes with retained mitochondria and autophagic vesicles. In summary, our study identifies ATG4A as a cell type-specific regulator of autophagy in erythroid development.
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Affiliation(s)
| | | | | | | | - Neele Thom
- Division of Hematology, Department of Medicine
| | - Courtnee A. Clough
- Division of Hematology, Department of Medicine
- Molecular and Cellular Biology Program
| | - Rachel C. Wellington
- Division of Hematology, Department of Medicine
- Molecular and Cellular Biology Program
| | | | - Janis L. Abkowitz
- Division of Hematology, Department of Medicine
- Institute for Stem Cell and Regenerative Medicine, and
- Department of Genome Sciences, University of Washington, Seattle, WA
| | - Sergei Doulatov
- Division of Hematology, Department of Medicine
- Molecular and Cellular Biology Program
- Institute for Stem Cell and Regenerative Medicine, and
- Department of Genome Sciences, University of Washington, Seattle, WA
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19
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Dulmovits BM, Tang Y, Papoin J, He M, Li J, Yang H, Addorisio ME, Kennedy L, Khan M, Brindley E, Ashley RJ, Ackert-Bicknell C, Hale J, Kurita R, Nakamura Y, Diamond B, Barnes BJ, Hermine O, Gallagher PG, Steiner LA, Lipton JM, Taylor N, Mohandas N, Andersson U, Al-Abed Y, Tracey KJ, Blanc L. HMGB1-mediated restriction of EPO signaling contributes to anemia of inflammation. Blood 2022; 139:3181-3193. [PMID: 35040907 PMCID: PMC9136881 DOI: 10.1182/blood.2021012048] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Accepted: 12/22/2021] [Indexed: 11/20/2022] Open
Abstract
Anemia of inflammation, also known as anemia of chronic disease, is refractory to erythropoietin (EPO) treatment, but the mechanisms underlying the EPO refractory state are unclear. Here, we demonstrate that high mobility group box-1 protein (HMGB1), a damage-associated molecular pattern molecule recently implicated in anemia development during sepsis, leads to reduced expansion and increased death of EPO-sensitive erythroid precursors in human models of erythropoiesis. HMGB1 significantly attenuates EPO-mediated phosphorylation of the Janus kinase 2/STAT5 and mTOR signaling pathways. Genetic ablation of receptor for advanced glycation end products, the only known HMGB1 receptor expressed by erythroid precursors, does not rescue the deleterious effects of HMGB1 on EPO signaling, either in human or murine precursors. Furthermore, surface plasmon resonance studies highlight the ability of HMGB1 to interfere with the binding between EPO and the EPOR. Administration of a monoclonal anti-HMGB1 antibody after sepsis onset in mice partially restores EPO signaling in vivo. Thus, HMGB1-mediated restriction of EPO signaling contributes to the chronic phase of anemia of inflammation.
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Affiliation(s)
- Brian M Dulmovits
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | | | | | - Mingzhu He
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Jianhua Li
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Huan Yang
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Meghan E Addorisio
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | | | | | - Elena Brindley
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Ryan J Ashley
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | | | - John Hale
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY
| | - Ryo Kurita
- Central Blood Institute, Japanese Red Cross Society, Minato-ku, Tokyo, Japan
| | - Yukio Nakamura
- Cell Engineering Division, RIKEN BioResource Research Center, Tsukuba, Ibaraki, Japan
| | - Betty Diamond
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Betsy J Barnes
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
| | - Olivier Hermine
- INSERM Unité Mixte de Recherche (UMR) 1163, IMAGINE Institute, Paris, France
| | | | - Laurie A Steiner
- Department of Pediatrics, University of Rochester, Rochester, NY
| | - Jeffrey M Lipton
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
- Pediatric Hematology/Oncology, Cohen Children's Medical Center, New Hyde Park, NY
| | - Naomi Taylor
- Pediatric Oncology Branch, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD; and
| | - Narla Mohandas
- Red Cell Physiology Laboratory, New York Blood Center, New York, NY
| | - Ulf Andersson
- Department of Women's and Children's Health, Karolinska Institute, Stockholm, Sweden
| | - Yousef Al-Abed
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Kevin J Tracey
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Bioelectronic Medicine, Feinstein Institutes for Medical Research, Manhasset, NY
| | - Lionel Blanc
- Zucker School of Medicine at Hofstra Northwell, Hempstead, NY
- Institute of Molecular Medicine, and
- INSERM Unité Mixte de Recherche (UMR) 1163, IMAGINE Institute, Paris, France
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20
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Abstract
PURPOSE OF REVIEW HRI is the heme-regulated elF2α kinase that phosphorylates the α-subunit of elF2. Although the role of HRI in inhibiting globin synthesis in erythroid cells is well established, broader roles of HRI in translation have been uncovered recently. This review is to summarize the new discoveries of HRI in stress erythropoiesis and in fetal γ-globin expression. RECENT FINDINGS HRI and activating transcription factor 4 (ATF4) mRNAs are highly expressed in early erythroblasts. Inhibition of protein synthesis by HRI-phosphorylated elF2α (elF2αP) is necessary to maintain protein homeostasis in both the cytoplasm and mitochondria. In addition, HRI-elF2αP specifically enhances translation of ATF4 mRNA leading to the repression of mechanistic target of rapamycin complex 1 (mTORC1) signaling. ATF4-target genes are most highly activated during iron deficiency to maintain mitochondrial function, redox homeostasis, and to enable erythroid differentiation. HRI is therefore a master translation regulator of erythropoiesis sensing intracellular heme concentrations and oxidative stress for effective erythropoiesis. Intriguingly, HRI-elF2αP-ATF4 signaling also inhibits fetal hemoglobin production in human erythroid cells. SUMMARY The primary function of HRI is to maintain protein homeostasis accompanied by the induction of ATF4 to mitigate stress. Role of HRI-ATF4 in γ-globin expression raises the potential of HRI as a therapeutic target for hemoglobinopathy.
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Affiliation(s)
- Jane-Jane Chen
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
| | - Shuping Zhang
- Medical Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan 250062, China
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21
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Huang Q, Wu D, Zhao J, Yan Z, Chen L, Guo S, Wang D, Yuan C, Wang Y, Liu X, Xing J. TFAM loss induces nuclear actin assembly upon mDia2 malonylation to promote liver cancer metastasis. EMBO J 2022; 41:e110324. [PMID: 35451091 PMCID: PMC9156967 DOI: 10.15252/embj.2021110324] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/09/2022] Open
Abstract
The mechanisms underlying cancer metastasis remain poorly understood. Here, we report that TFAM deficiency rapidly and stably induced spontaneous lung metastasis in mice with liver cancer. Interestingly, unexpected polymerization of nuclear actin was observed in TFAM-knockdown HCC cells when cytoskeleton was examined. Polymerization of nuclear actin is causally linked to the high-metastatic ability of HCC cells by modulating chromatin accessibility and coordinating the expression of genes associated with extracellular matrix remodeling, angiogenesis, and cell migration. Mechanistically, TFAM deficiency blocked the TCA cycle and increased the intracellular malonyl-CoA levels. Malonylation of mDia2, which drives actin assembly, promotes its nuclear translocation. Importantly, inhibition of malonyl-CoA production or nuclear actin polymerization significantly impeded the spread of HCC cells in mice. Moreover, TFAM was significantly downregulated in metastatic HCC tissues and was associated with overall survival and time to tumor recurrence of HCC patients. Taken together, our study connects mitochondria to the metastasis of human cancer via uncovered mitochondria-to-nucleus retrograde signaling, indicating that TFAM may serve as an effective target to block HCC metastasis.
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Affiliation(s)
- Qichao Huang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Dan Wu
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Jing Zhao
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Zeyu Yan
- Department of General Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, China
| | - Lin Chen
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Shanshan Guo
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Dalin Wang
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Chong Yuan
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Yinping Wang
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Xiaoli Liu
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
| | - Jinliang Xing
- State Key Laboratory of Cancer Biology and Department of Physiology and Pathophysiology, Fourth Military Medical University, Xi'an, China
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22
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Solmonson A, Faubert B, Gu W, Rao A, Cowdin MA, Menendez-Montes I, Kelekar S, Rogers TJ, Pan C, Guevara G, Tarangelo A, Zacharias LG, Martin-Sandoval MS, Do D, Pachnis P, Dumesnil D, Mathews TP, Tasdogan A, Pham A, Cai L, Zhao Z, Ni M, Cleaver O, Sadek HA, Morrison SJ, DeBerardinis RJ. Compartmentalized metabolism supports midgestation mammalian development. Nature 2022; 604:349-353. [PMID: 35388219 PMCID: PMC9007737 DOI: 10.1038/s41586-022-04557-9] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 02/08/2022] [Indexed: 12/21/2022]
Abstract
Mammalian embryogenesis requires rapid growth and proper metabolic regulation1. Midgestation features increasing oxygen and nutrient availability concomitant with fetal organ development2,3. Understanding how metabolism supports development requires approaches to observe metabolism directly in model organisms in utero. Here we used isotope tracing and metabolomics to identify evolving metabolic programmes in the placenta and embryo during midgestation in mice. These tissues differ metabolically throughout midgestation, but we pinpointed gestational days (GD) 10.5-11.5 as a transition period for both placenta and embryo. Isotope tracing revealed differences in carbohydrate metabolism between the tissues and rapid glucose-dependent purine synthesis, especially in the embryo. Glucose's contribution to the tricarboxylic acid (TCA) cycle rises throughout midgestation in the embryo but not in the placenta. By GD12.5, compartmentalized metabolic programmes are apparent within the embryo, including different nutrient contributions to the TCA cycle in different organs. To contextualize developmental anomalies associated with Mendelian metabolic defects, we analysed mice deficient in LIPT1, the enzyme that activates 2-ketoacid dehydrogenases related to the TCA cycle4,5. LIPT1 deficiency suppresses TCA cycle metabolism during the GD10.5-GD11.5 transition, perturbs brain, heart and erythrocyte development and leads to embryonic demise by GD11.5. These data document individualized metabolic programmes in developing organs in utero.
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Affiliation(s)
- Ashley Solmonson
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Brandon Faubert
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Section of Hematology and Oncology, Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Wen Gu
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Aparna Rao
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Mitzy A Cowdin
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ivan Menendez-Montes
- Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sherwin Kelekar
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Thomas J Rogers
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Chunxiao Pan
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Gerardo Guevara
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Amy Tarangelo
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Lauren G Zacharias
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Misty S Martin-Sandoval
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Duyen Do
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Panayotis Pachnis
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Dennis Dumesnil
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Thomas P Mathews
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Alpaslan Tasdogan
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Department of Dermatology, University Hospital Essen and German Cancer Consortium, Partner Site Essen, Essen, Germany
| | - An Pham
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ling Cai
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Quantitative Biomedical Research Center, Department of Population and Data Sciences, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhiyu Zhao
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Min Ni
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ondine Cleaver
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Hesham A Sadek
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Division of Cardiology, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Sean J Morrison
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.,Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ralph J DeBerardinis
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA. .,Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX, USA. .,Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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23
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Xu X, Ahmed T, Wang L, Cao X, Zhang Z, Wang M, Lv Y, Kanwal S, Tariq M, Lin R, Zhang H, Huang Y, Peng H, Lin D, Shi X, Geng D, Liu B, Zhang X, Yi W, Qin Y, Esteban MA, Qin B. The mTORC1-eIF4F axis controls paused pluripotency. EMBO Rep 2022; 23:e53081. [PMID: 34866316 PMCID: PMC8811634 DOI: 10.15252/embr.202153081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Revised: 11/01/2021] [Accepted: 11/16/2021] [Indexed: 02/05/2023] Open
Abstract
Mouse embryonic stem cells (mESCs) can self-renew indefinitely and maintain pluripotency. Inhibition of mechanistic target of rapamycin (mTOR) by the kinase inhibitor INK128 is known to induce paused pluripotency in mESCs cultured with traditional serum/LIF medium (SL), but the underlying mechanisms remain unclear. In this study, we demonstrate that mTOR complex 1 (mTORC1) but not complex 2 (mTORC2) mediates mTOR inhibition-induced paused pluripotency in cells grown in both SL and 2iL medium (GSK3 and MEK inhibitors and LIF). We also show that mTORC1 regulates self-renewal in both conditions mainly through eIF4F-mediated translation initiation that targets mRNAs of both cytosolic and mitochondrial ribosome subunits. Moreover, inhibition of mitochondrial translation is sufficient to induce paused pluripotency. Interestingly, eIF4F also regulates maintenance of pluripotency in an mTORC1-independent but MEK/ERK-dependent manner in SL, indicating that translation of pluripotency genes is controlled differently in SL and 2iL. Our study reveals a detailed picture of how mTOR governs self-renewal in mESCs and uncovers a context-dependent function of eIF4F in pluripotency regulation.
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Affiliation(s)
- Xueting Xu
- School of Life SciencesUniversity of Science and Technology of ChinaHefeiChina,CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Tanveer Ahmed
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Lulu Wang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Xintao Cao
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Zeyu Zhang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina
| | - Ming Wang
- Guangdong Key Laboratory of Genome Stability and Human Disease PreventionDepartment of Biochemistry & Molecular BiologyShenzhen University Health Science CenterShenzhenChina
| | - Yuan Lv
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,University of Chinese Academy of SciencesBeijingChina,Laboratory of Integrative BiologyGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Shahzina Kanwal
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Integrative BiologyGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Muqddas Tariq
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina
| | - Runxia Lin
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,University of Chinese Academy of SciencesBeijingChina
| | - Hui Zhang
- Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina
| | - Yinghua Huang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Hao Peng
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,University of Chinese Academy of SciencesBeijingChina
| | - Danni Lin
- School of Life SciencesUniversity of Science and Technology of ChinaHefeiChina,CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina
| | - Xue Shi
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,University of Chinese Academy of SciencesBeijingChina
| | - Didi Geng
- MOE Key Laboratory of Biosystems Homeostasis & ProtectionCollege of Life SciencesZhejiang UniversityHangzhouChina
| | - Baohua Liu
- Guangdong Key Laboratory of Genome Stability and Human Disease PreventionDepartment of Biochemistry & Molecular BiologyShenzhen University Health Science CenterShenzhenChina
| | - Xiaofei Zhang
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina,University of Chinese Academy of SciencesBeijingChina
| | - Wen Yi
- MOE Key Laboratory of Biosystems Homeostasis & ProtectionCollege of Life SciencesZhejiang UniversityHangzhouChina
| | - Yan Qin
- Key Laboratory of RNA BiologyInstitute of BiophysicsChinese Academy of SciencesBeijingChina
| | - Miguel A Esteban
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina,University of Chinese Academy of SciencesBeijingChina,Laboratory of Integrative BiologyGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Institute of Stem Cells and RegenerationChinese Academy of SciencesBeijingChina,Joint School of Life SciencesGuangzhou Institutes of Biomedicine and Health and Guangzhou Medical UniversityGuangzhouChina
| | - Baoming Qin
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cells and Regenerative Medicine, GIBH‐HKU Guangdong‐Hong Kong Stem Cell and Regenerative Medicine Research Center, Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Laboratory of Metabolism and Cell FateGuangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouChina,Bioland Laboratory (Guangzhou Regenerative Medicine and Health Guangdong Laboratory)GuangzhouChina,University of Chinese Academy of SciencesBeijingChina,Joint School of Life SciencesGuangzhou Institutes of Biomedicine and Health and Guangzhou Medical UniversityGuangzhouChina
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24
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Nadalutti CA, Ayala-Peña S, Santos JH. Mitochondrial DNA damage as driver of cellular outcomes. Am J Physiol Cell Physiol 2022; 322:C136-C150. [PMID: 34936503 PMCID: PMC8799395 DOI: 10.1152/ajpcell.00389.2021] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Mitochondria are primarily involved in energy production through the process of oxidative phosphorylation (OXPHOS). Increasing evidence has shown that mitochondrial function impacts a plethora of different cellular activities, including metabolism, epigenetics, and innate immunity. Like the nucleus, mitochondria own their genetic material, but this organellar genome is circular, present in multiple copies, and maternally inherited. The mitochondrial DNA (mtDNA) encodes 37 genes that are solely involved in OXPHOS. Maintenance of mtDNA, through replication and repair, requires the import of nuclear DNA-encoded proteins. Thus, mitochondria completely rely on the nucleus to prevent mitochondrial genetic alterations. As most cells contain hundreds to thousands of mitochondria, it follows that the shear number of organelles allows for the buffering of dysfunction-at least to some extent-before tissue homeostasis becomes impaired. Only red blood cells lack mitochondria entirely. Impaired mitochondrial function is a hallmark of aging and is involved in a number of different disorders, including neurodegenerative diseases, diabetes, cancer, and autoimmunity. Although alterations in mitochondrial processes unrelated to OXPHOS, such as fusion and fission, contribute to aging and disease, maintenance of mtDNA integrity is critical for proper organellar function. Here, we focus on how mtDNA damage contributes to cellular dysfunction and health outcomes.
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Affiliation(s)
- Cristina A. Nadalutti
- 1Mechanistic Toxicology Branch, Division of the National Toxicology
Program (DNTP), National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, North Carolina
| | - Sylvette Ayala-Peña
- 2Department of Pharmacology and Toxicology, University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico
| | - Janine H. Santos
- 1Mechanistic Toxicology Branch, Division of the National Toxicology
Program (DNTP), National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health (NIH), Research Triangle Park, North Carolina
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25
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Wang X, Shelton SD, Bordieanu B, Frank AR, Yi Y, Venigalla SSK, Gu Z, Lenser NP, Glogauer M, Chandel NS, Zhao H, Zhao Z, McFadden DG, Mishra P. Scinderin promotes fusion of electron transport chain dysfunctional muscle stem cells with myofibers. NATURE AGING 2022; 2:155-169. [PMID: 35342888 PMCID: PMC8954567 DOI: 10.1038/s43587-021-00164-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 12/08/2021] [Indexed: 06/14/2023]
Abstract
Muscle stem cells (MuSCs) experience age-associated declines in number and function, accompanied by mitochondrial electron transport chain (ETC) dysfunction and increased reactive oxygen species (ROS). The source of these changes, and how MuSCs respond to mitochondrial dysfunction, is unknown. We report here that in response to mitochondrial ROS, murine MuSCs directly fuse with neighboring myofibers; this phenomenon removes ETC-dysfunctional MuSCs from the stem cell compartment. MuSC-myofiber fusion is dependent on the induction of Scinderin, which promotes formation of actin-dependent protrusions required for membrane fusion. During aging, we find that the declining MuSC population accumulates mutations in the mitochondrial genome, but selects against dysfunctional variants. In the absence of clearance by Scinderin, the decline in MuSC numbers during aging is repressed; however, ETC-dysfunctional MuSCs are retained and can regenerate dysfunctional myofibers. We propose a model in which ETC-dysfunctional MuSCs are removed from the stem cell compartment by fusing with differentiated tissue.
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Affiliation(s)
- Xun Wang
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Spencer D Shelton
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Bogdan Bordieanu
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Present Address: Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425 USA
| | - Anderson R Frank
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Internal Medicine, Division of Endocrinology, Program in Molecular Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390 USA
| | - Yating Yi
- Department of Comprehensive Dentistry, College of Dentistry, Texas A&M University, Dallas, TX 75246, USA
- Present address: State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, 610041 China
| | - Siva Sai Krishna Venigalla
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Zhimin Gu
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Nicholas P Lenser
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Present address: Abramson Family Cancer Research Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Michael Glogauer
- Faculty of Dentistry, University of Toronto, Toronto, ON, Canada
| | - Navdeep S Chandel
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Biochemistry & Molecular Genetics, Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - Hu Zhao
- Department of Comprehensive Dentistry, College of Dentistry, Texas A&M University, Dallas, TX 75246, USA
- Present address: The Chinese Institute for Brain Research, Beijing, China
| | - Zhiyu Zhao
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - David G McFadden
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Department of Internal Medicine, Division of Endocrinology, Program in Molecular Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390 USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390 USA
| | - Prashant Mishra
- Children's Medical Center Research Institute, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Harold C. Simmons Comprehensive Cancer Center, University of Texas Southwestern Medical Center, Dallas, TX 75390 USA
- Department of Pediatrics, University of Texas Southwestern Medical Center, Dallas, TX 75390
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26
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Morin AL, Win PW, Lin AZ, Castellani CA. Mitochondrial genomic integrity and the nuclear epigenome in health and disease. Front Endocrinol (Lausanne) 2022; 13:1059085. [PMID: 36419771 PMCID: PMC9678080 DOI: 10.3389/fendo.2022.1059085] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/19/2022] [Indexed: 11/09/2022] Open
Abstract
Bidirectional crosstalk between the nuclear and mitochondrial genomes is essential for proper cell functioning. Mitochondrial DNA copy number (mtDNA-CN) and heteroplasmy influence mitochondrial function, which can influence the nuclear genome and contribute to health and disease. Evidence shows that mtDNA-CN and heteroplasmic variation are associated with aging, complex disease, and all-cause mortality. Further, the nuclear epigenome may mediate the effects of mtDNA variation on disease. In this way, mitochondria act as an environmental biosensor translating vital information about the state of the cell to the nuclear genome. Cellular communication between mtDNA variation and the nuclear epigenome can be achieved by modification of metabolites and intermediates of the citric acid cycle and oxidative phosphorylation. These essential molecules (e.g. ATP, acetyl-CoA, ɑ-ketoglutarate and S-adenosylmethionine) act as substrates and cofactors for enzymes involved in epigenetic modifications. The role of mitochondria as an environmental biosensor is emerging as a critical modifier of disease states. Uncovering the mechanisms of these dynamics in disease processes is expected to lead to earlier and improved treatment for a variety of diseases. However, the influence of mtDNA-CN and heteroplasmy variation on mitochondrially-derived epigenome-modifying metabolites and intermediates is poorly understood. This perspective will focus on the relationship between mtDNA-CN, heteroplasmy, and epigenome modifying cofactors and substrates, and the influence of their dynamics on the nuclear epigenome in health and disease.
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Affiliation(s)
- Amanda L. Morin
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Phyo W. Win
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Angela Z. Lin
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
| | - Christina A. Castellani
- Department of Pathology and Laboratory Medicine, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- Department of Epidemiology and Biostatistics, Schulich School of Medicine and Dentistry, Western University, London, ON, Canada
- *Correspondence: Christina A. Castellani,
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27
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Zhang H, Wang S, Liu D, Gao C, Han Y, Guo X, Qu X, Li W, Zhang S, Geng J, Zhang L, Mendelson A, Yazdanbakhsh K, Chen L, An X. EpoR-tdTomato-Cre mice enable identification of EpoR expression in subsets of tissue macrophages and hematopoietic cells. Blood 2021; 138:1986-1997. [PMID: 34098576 PMCID: PMC8767788 DOI: 10.1182/blood.2021011410] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/22/2021] [Indexed: 11/20/2022] Open
Abstract
The erythropoietin receptor (EpoR) has traditionally been thought of as an erythroid-specific gene. Notably, accumulating evidence suggests that EpoR is expressed well beyond erythroid cells. However, the expression of EpoR in non-erythroid cells has been controversial. In this study, we generated EpoR-tdTomato-Cre mice and used them to examine the expression of EpoR in tissue macrophages and hematopoietic cells. We show that in marked contrast to the previously available EpoR-eGFPcre mice, in which a very weak eGFP signal was detected in erythroid cells, tdTomato was readily detectable in both fetal liver (FL) and bone marrow (BM) erythroid cells at all developmental stages and exhibited dynamic changes during erythropoiesis. Consistent with our recent finding that erythroblastic island (EBI) macrophages are characterized by the expression of EpoR, tdTomato was readily detected in both FL and BM EBI macrophages. Moreover, tdTomato was also detected in subsets of hematopoietic stem cells, progenitors, megakaryocytes, and B cells in BM as well as in spleen red pulp macrophages and liver Kupffer cells. The expression of EpoR was further shown by the EpoR-tdTomato-Cre-mediated excision of the floxed STOP sequence. Importantly, EPO injection selectively promoted proliferation of the EpoR-expressing cells and induced erythroid lineage bias during hematopoiesis. Our findings imply broad roles for EPO/EpoR in hematopoiesis that warrant further investigation. The EpoR-tdTomato-Cre mouse line provides a powerful tool to facilitate future studies on EpoR expression and regulation in various non-hematopoietic cells and to conditionally manipulate gene expression in EpoR-expressing cells for functional studies.
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Affiliation(s)
- Huan Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
- Laboratory of Membrane Biology and
| | - Shihui Wang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
- Laboratory of Membrane Biology and
| | - Donghao Liu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | | | | | | | - Xiaoli Qu
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | - Wei Li
- Laboratory of Membrane Biology and
| | - Shijie Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | - Jingyu Geng
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | - Linlin Zhang
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | - Avital Mendelson
- Laboratory of Complement Biology, New York Blood Center, New York, NY
| | | | - Lixiang Chen
- School of Life Sciences, Zhengzhou University, Zhengzhou, China; and
| | - Xiuli An
- Laboratory of Membrane Biology and
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28
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Murphy ZC, Murphy K, Myers J, Getman M, Couch T, Schulz VP, Lezon-Geyda K, Palumbo C, Yan H, Mohandas N, Gallagher PG, Steiner LA. Regulation of RNA polymerase II activity is essential for terminal erythroid maturation. Blood 2021; 138:1740-1756. [PMID: 34075391 PMCID: PMC8569412 DOI: 10.1182/blood.2020009903] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 04/30/2021] [Indexed: 11/20/2022] Open
Abstract
The terminal maturation of human erythroblasts requires significant changes in gene expression in the context of dramatic nuclear condensation. Defects in this process are associated with inherited anemias and myelodysplastic syndromes. The progressively dense appearance of the condensing nucleus in maturing erythroblasts led to the assumption that heterochromatin accumulation underlies this process, but despite extensive study, the precise mechanisms underlying this essential biologic process remain elusive. To delineate the epigenetic changes associated with the terminal maturation of human erythroblasts, we performed mass spectrometry of histone posttranslational modifications combined with chromatin immunoprecipitation coupled with high-throughput sequencing, Assay for Transposase Accessible Chromatin, and RNA sequencing. Our studies revealed that the terminal maturation of human erythroblasts is associated with a dramatic decline in histone marks associated with active transcription elongation, without accumulation of heterochromatin. Chromatin structure and gene expression were instead correlated with dynamic changes in occupancy of elongation competent RNA polymerase II, suggesting that terminal erythroid maturation is controlled largely at the level of transcription. We further demonstrate that RNA polymerase II "pausing" is highly correlated with transcriptional repression, with elongation competent RNA polymerase II becoming a scare resource in late-stage erythroblasts, allocated to erythroid-specific genes. Functional studies confirmed an essential role for maturation stage-specific regulation of RNA polymerase II activity during erythroid maturation and demonstrate a critical role for HEXIM1 in the regulation of gene expression and RNA polymerase II activity in maturing erythroblasts. Taken together, our findings reveal important insights into the mechanisms that regulate terminal erythroid maturation and provide a novel paradigm for understanding normal and perturbed erythropoiesis.
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Affiliation(s)
| | | | - Jacquelyn Myers
- Department of Pediatrics and
- Genomics Resource Center, University of Rochester, Rochester, NY
| | | | | | | | | | - Cal Palumbo
- Genomics Resource Center, University of Rochester, Rochester, NY
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29
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Ding Y, Li Y, Zhao Z, Cliff Zhang Q, Liu F. The chromatin-remodeling enzyme Smarca5 regulates erythrocyte aggregation via Keap1-Nrf2 signaling. eLife 2021; 10:72557. [PMID: 34698638 PMCID: PMC8594921 DOI: 10.7554/elife.72557] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Accepted: 10/23/2021] [Indexed: 12/30/2022] Open
Abstract
Although thrombosis has been extensively studied using various animal models, our understanding of the underlying mechanism remains elusive. Here, using zebrafish model, we demonstrated that smarca5-deficient red blood cells (RBCs) formed blood clots in the caudal vein plexus. We further used the anti-thrombosis drugs to treat smarca5zko1049a embryos and found that a thrombin inhibitor, argatroban, partially prevented blood clot formation in smarca5zko1049a. To explore the regulatory mechanism of smarca5 in RBC homeostasis, we profiled the chromatin accessibility landscape and transcriptome features in RBCs from smarca5zko1049a and their siblings and found that both the chromatin accessibility at the keap1a promoter and expression of keap1a were decreased. Keap1 is a suppressor protein of Nrf2, which is a major regulator of oxidative responses. We further identified that the expression of hmox1a, a downstream target of Keap1-Nrf2 signaling pathway, was markedly increased upon smarca5 deletion. Importantly, overexpression of keap1a or knockdown of hmox1a partially rescued the blood clot formation, suggesting that the disrupted Keap1-Nrf2 signaling is responsible for the RBC aggregation in smarca5 mutants. Together, our study using zebrafish smarca5 mutants characterizes a novel role for smarca5 in RBC aggregation, which may provide a new venous thrombosis animal model to support drug screening and pre-clinical therapeutic assessments to treat thrombosis.
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Affiliation(s)
- Yanyan Ding
- The Max-Planck Center for Tissue Stem Cell Research and Regenerative Medicine, Bioland Laboratory, Guangzhou, China.,State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Yuzhe Li
- MOE Key Laboratory of Bioinformatics, Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Center for Synthetic and Systems Biology, School of Life Sciences, Tsinghua University, Beijing, China.,Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
| | - Ziqian Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Qiangfeng Cliff Zhang
- MOE Key Laboratory of Bioinformatics, Beijing Advanced Innovation Center for Structural Biology & Frontier Research Center for Biological Structure, Center for Synthetic and Systems Biology, School of Life Sciences, Tsinghua University, Beijing, China.,Tsinghua-Peking Center for Life Sciences, Beijing, China
| | - Feng Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
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30
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Shao J, Shi T, Yu H, Ding Y, Li L, Wang X, Wang X. Cytosolic GDH1 degradation restricts protein synthesis to sustain tumor cell survival following amino acid deprivation. EMBO J 2021; 40:e107480. [PMID: 34269483 PMCID: PMC8521317 DOI: 10.15252/embj.2020107480] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Revised: 06/04/2021] [Accepted: 06/13/2021] [Indexed: 01/18/2023] Open
Abstract
The mTORC1 pathway plays key roles in regulating various biological processes, including sensing amino acid deprivation and driving expression of ribosomal protein (RP)-coding genes. In this study, we observed that depletion of glutamate dehydrogenase 1 (GDH1), an enzyme that converts glutamate to α-ketoglutarate (αKG), confers resistance to amino acid deprivation on kidney renal clear cell carcinoma (KIRC) cells. Mechanistically, under conditions of adequate nutrition, GDH1 maintains RP gene expression in a manner dependent on its enzymatic activity. Following amino acid deprivation or mTORC1 inhibition, GDH1 translocates from mitochondria to the cytoplasm, where it becomes ubiquitinated and degraded via the E3 ligase RNF213. GDH1 degradation reduces intracellular αKG levels by more than half and decreases the activity of αKG-dependent lysine demethylases (KDMs). Reduced KDM activity in turn leads to increased histone H3 lysine 9 and 27 methylation, further suppressing RP gene expression and preserving nutrition to support cell survival. In summary, our study exemplifies an economical and efficient strategy of solid tumor cells for coping with amino acid deficiency, which might in the future be targeted to block renal carcinoma progression.
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Affiliation(s)
- Jialiang Shao
- Department of UrologyShanghai General HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Tiezhu Shi
- Department of UrologyShanghai General HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Hua Yu
- CAS Key Laboratory of Tissue Microenvironment and TumorInstitute of Nutrition and Health SciencesChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina
- School of Life SciencesGuangzhou UniversityGuangzhouChina
| | - Yufeng Ding
- Department of UrologyShanghai General HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Liping Li
- School of Life SciencesGuangzhou UniversityGuangzhouChina
| | - Xiang Wang
- Department of UrologyShanghai General HospitalShanghai Jiao Tong UniversityShanghaiChina
| | - Xiongjun Wang
- CAS Key Laboratory of Tissue Microenvironment and TumorInstitute of Nutrition and Health SciencesChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghaiChina
- School of Life SciencesGuangzhou UniversityGuangzhouChina
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31
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Saba JA, Liakath-Ali K, Green R, Watt FM. Translational control of stem cell function. Nat Rev Mol Cell Biol 2021; 22:671-690. [PMID: 34272502 DOI: 10.1038/s41580-021-00386-2] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/27/2021] [Indexed: 12/22/2022]
Abstract
Stem cells are characterized by their ability to self-renew and differentiate into many different cell types. Research has focused primarily on how these processes are regulated at a transcriptional level. However, recent studies have indicated that stem cell behaviour is strongly coupled to the regulation of protein synthesis by the ribosome. In this Review, we discuss how different translation mechanisms control the function of adult and embryonic stem cells. Stem cells are characterized by low global translation rates despite high levels of ribosome biogenesis. The maintenance of pluripotency, the commitment to a specific cell fate and the switch to cell differentiation depend on the tight regulation of protein synthesis and ribosome biogenesis. Translation regulatory mechanisms that impact on stem cell function include mTOR signalling, ribosome levels, and mRNA and tRNA features and amounts. Understanding these mechanisms important for stem cell self-renewal and differentiation may also guide our understanding of cancer grade and metastasis.
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Affiliation(s)
- James A Saba
- Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kifayathullah Liakath-Ali
- Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Rachel Green
- Department of Molecular Biology and Genetics, Howard Hughes Medical Institute, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Fiona M Watt
- King's College London Centre for Stem Cells and Regenerative Medicine, Guy's Hospital, London, UK.
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32
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Zhao J, Yao K, Yu H, Zhang L, Xu Y, Chen L, Sun Z, Zhu Y, Zhang C, Qian Y, Ji S, Pan H, Zhang M, Chen J, Correia C, Weiskittel T, Lin DW, Zhao Y, Chandrasekaran S, Fu X, Zhang D, Fan HY, Xie W, Li H, Hu Z, Zhang J. Metabolic remodelling during early mouse embryo development. Nat Metab 2021; 3:1372-1384. [PMID: 34650276 DOI: 10.1038/s42255-021-00464-x] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Accepted: 08/31/2021] [Indexed: 01/09/2023]
Abstract
During early mammalian embryogenesis, changes in cell growth and proliferation depend on strict genetic and metabolic instructions. However, our understanding of metabolic reprogramming and its influence on epigenetic regulation in early embryo development remains elusive. Here we show a comprehensive metabolomics profiling of key stages in mouse early development and the two-cell and blastocyst embryos, and we reconstructed the metabolic landscape through the transition from totipotency to pluripotency. Our integrated metabolomics and transcriptomics analysis shows that while two-cell embryos favour methionine, polyamine and glutathione metabolism and stay in a more reductive state, blastocyst embryos have higher metabolites related to the mitochondrial tricarboxylic acid cycle, and present a more oxidative state. Moreover, we identify a reciprocal relationship between α-ketoglutarate (α-KG) and the competitive inhibitor of α-KG-dependent dioxygenases, L-2-hydroxyglutarate (L-2-HG), where two-cell embryos inherited from oocytes and one-cell zygotes display higher L-2-HG, whereas blastocysts show higher α-KG. Lastly, increasing 2-HG availability impedes erasure of global histone methylation markers after fertilization. Together, our data demonstrate dynamic and interconnected metabolic, transcriptional and epigenetic network remodelling during early mouse embryo development.
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Affiliation(s)
- Jing Zhao
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ke Yao
- School of Pharmaceutical Sciences, Tsinghua-Peking Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing, China
| | - Hua Yu
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ling Zhang
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Yuyan Xu
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Lang Chen
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Zhen Sun
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yuqing Zhu
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Cheng Zhang
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Yuli Qian
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuyan Ji
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, THU-PKU Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Hongru Pan
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Min Zhang
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Jie Chen
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Cristina Correia
- Center for Individualized Medicine, Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, NY, USA
| | - Taylor Weiskittel
- Center for Individualized Medicine, Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, NY, USA
| | - Da-Wei Lin
- Center of Computational Medicine and Bioinformatics, Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Yuzheng Zhao
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, Shanghai Collaborative Innovation Center for Biomanufacturing Technology, Research Unit of Chinese Academy of Medical Sciences, East China University of Science and Technology, Shanghai, China
| | - Sriram Chandrasekaran
- Center of Computational Medicine and Bioinformatics, Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Xudong Fu
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China
| | - Dan Zhang
- Key Laboratory of Reproductive Genetics (Ministry of Education) and Department of Reproductive Endocrinology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Heng-Yu Fan
- Life Sciences Institute, Zhejiang University, Hangzhou, China
| | - Wei Xie
- Center for Stem Cell Biology and Regenerative Medicine, MOE Key Laboratory of Bioinformatics, THU-PKU Center for Life Sciences, School of Life Sciences, Tsinghua University, Beijing, China
| | - Hu Li
- Center for Individualized Medicine, Department of Molecular Pharmacology & Experimental Therapeutics, Mayo Clinic, Rochester, NY, USA
| | - Zeping Hu
- School of Pharmaceutical Sciences, Tsinghua-Peking Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing, China.
| | - Jin Zhang
- Center for Stem Cell and Regenerative Medicine, Department of Basic Medical Sciences, and Bone Marrow Transplantation Center of the First Affiliated Hospital, Zhejiang University, Hangzhou, China.
- Zhejiang Laboratory for Systems & Precision Medicine, Zhejiang University Medical Center, Hangzhou, China.
- Institute of Hematology, Zhejiang University, Hangzhou, China.
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Lu J, Liang Y, Meng H, Zhang A, Zhao J, Zhang C. Metabolic Controls on Epigenetic Reprogramming in Regulatory T Cells. Front Immunol 2021; 12:728783. [PMID: 34421930 PMCID: PMC8374078 DOI: 10.3389/fimmu.2021.728783] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 07/23/2021] [Indexed: 01/20/2023] Open
Abstract
Forkhead box protein 3 (Foxp3+)-expressing regulatory T (Treg) cells are a unique CD4+T cell subset that suppresses excessive immune responses. The epigenetic plasticity and metabolic traits of Treg cells are crucial for the acquisition of their phenotypic and functional characteristics. Therefore, alterations to the epigenetics and metabolism affect Treg cell development and function. Recent evidence reveals that altering the metabolic pathways and generation of metabolites can regulate the epigenetics of Treg cells. Specifically, some intermediates of cell metabolism can directly act as substrates or cofactors of epigenetic-modifying enzymes. Here, we describe the metabolic and epigenetic features during Treg cell development, and discuss how metabolites can contribute to epigenetic alterations of Treg cells, which affects Treg cell activation, differentiation, and function.
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Affiliation(s)
- Jingli Lu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, China.,Zhengzhou Key Laboratory of Clinical Mass Spectrometry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yan Liang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, China.,Zhengzhou Key Laboratory of Clinical Mass Spectrometry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Haiyang Meng
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, China.,Zhengzhou Key Laboratory of Clinical Mass Spectrometry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ailing Zhang
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, China.,Zhengzhou Key Laboratory of Clinical Mass Spectrometry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Junjie Zhao
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Henan Engineering Research Center of Clinical Mass Spectrometry for Precision Medicine, Zhengzhou, China.,Zhengzhou Key Laboratory of Clinical Mass Spectrometry, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chengliang Zhang
- Department of Pharmacy, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Decreased PGC1β expression results in disrupted human erythroid differentiation, impaired hemoglobinization and cell cycle exit. Sci Rep 2021; 11:17129. [PMID: 34429458 PMCID: PMC8385110 DOI: 10.1038/s41598-021-96585-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 08/10/2021] [Indexed: 11/08/2022] Open
Abstract
Production of red blood cells relies on proper mitochondrial function, both for their increased energy demands during differentiation and for proper heme and iron homeostasis. Mutations in genes regulating mitochondrial function have been reported in patients with anemia, yet their pathophysiological role often remains unclear. PGC1β is a critical coactivator of mitochondrial biogenesis, with increased expression during terminal erythroid differentiation. The role of PGC1β has however mainly been studied in skeletal muscle, adipose and hepatic tissues, and its function in erythropoiesis remains largely unknown. Here we show that perturbed PGC1β expression in human hematopoietic stem/progenitor cells from both bone marrow and cord blood results in impaired formation of early erythroid progenitors and delayed terminal erythroid differentiation in vitro, with accumulations of polychromatic erythroblasts, similar to MDS-related refractory anemia. Reduced levels of PGC1β resulted in deregulated expression of iron, heme and globin related genes in polychromatic erythroblasts, and reduced hemoglobin content in the more mature bone marrow derived reticulocytes. Furthermore, PGC1β knock-down resulted in disturbed cell cycle exit with accumulation of erythroblasts in S-phase and enhanced expression of G1-S regulating genes, with smaller reticulocytes as a result. Taken together, we demonstrate that PGC1β is directly involved in production of hemoglobin and regulation of G1-S transition and is ultimately required for proper terminal erythroid differentiation.
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Lin W, Chen S, Wang Y, Wang M, Lee WYW, Jiang X, Li G. Dynamic regulation of mitochondrial-endoplasmic reticulum crosstalk during stem cell homeostasis and aging. Cell Death Dis 2021; 12:794. [PMID: 34400615 PMCID: PMC8368094 DOI: 10.1038/s41419-021-03912-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 02/07/2023]
Abstract
Cellular therapy exerts profound therapeutic potential for curing a broad spectrum of diseases. Adult stem cells reside within a specified dynamic niche in vivo, which is essential for continuous tissue homeostatic maintenance through balancing self-renewal with lineage selection. Meanwhile, adult stem cells may be multipotent or unipotent, and are present in both quiescent and actively dividing states in vivo of the mammalians, which may switch to each other state in response to biophysical cues through mitochondria-mediated mechanisms, such as alterations in mitochondrial respiration and metabolism. In general, stem cells facilitate tissue repair after tissue-specific homing through various mechanisms, including immunomodulation of local microenvironment, differentiation into functional cells, cell "empowerment" via paracrine secretion, immunoregulation, and intercellular mitochondrial transfer. Interestingly, cell-source-specific features have been reported between different tissue-derived adult stem cells with distinct functional properties due to the different microenvironments in vivo, as well as differential functional properties in different tissue-derived stem cell-derived extracellular vehicles, mitochondrial metabolism, and mitochondrial transfer capacity. Here, we summarized the current understanding on roles of mitochondrial dynamics during stem cell homeostasis and aging, and lineage-specific differentiation. Also, we proposed potential unique mitochondrial molecular signature features between different source-derived stem cells and potential associations between stem cell aging and mitochondria-endoplasmic reticulum (ER) communication, as well as potential novel strategies for anti-aging intervention and healthy aging.
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Affiliation(s)
- Weiping Lin
- Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China.
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.
| | - Shuxun Chen
- Department of Biomedical Engineering, City University of Hong Kong, Hong Kong SAR, China
| | - Yan Wang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ming Wang
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Wayne Yuk-Wai Lee
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China
- SH Ho Scoliosis Research Laboratory, Joint Scoliosis Research Center of the Chinese University of Hong Kong and Nanjing University, Department of Orthopaedics and Traumatology, The Chinese University of Hong Kong, Hong Kong SAR, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
| | - Xiaohua Jiang
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China
- Faculty of Medicine, MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Gang Li
- Stem Cells and Regenerative Medicine Laboratory, Department of Orthopaedics and Traumatology, Li Ka Shing Institute of Health Sciences, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong SAR, China.
- Shenzhen Research Institute, The Chinese University of Hong Kong, Shenzhen, China.
- Faculty of Medicine, MOE Key Laboratory for Regenerative Medicine, School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong SAR, China.
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36
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Stergiou IE, Kapsogeorgou EK. Autophagy and Metabolism in Normal and Malignant Hematopoiesis. Int J Mol Sci 2021; 22:ijms22168540. [PMID: 34445246 PMCID: PMC8395194 DOI: 10.3390/ijms22168540] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/03/2021] [Accepted: 08/05/2021] [Indexed: 02/07/2023] Open
Abstract
The hematopoietic system relies on regulation of both metabolism and autophagy to maintain its homeostasis, ensuring the self-renewal and multipotent differentiation potential of hematopoietic stem cells (HSCs). HSCs display a distinct metabolic profile from that of their differentiated progeny, while metabolic rewiring from glycolysis to oxidative phosphorylation (OXPHOS) has been shown to be crucial for effective hematopoietic differentiation. Autophagy-mediated regulation of metabolism modulates the distinct characteristics of quiescent and differentiating hematopoietic cells. In particular, mitophagy determines the cellular mitochondrial content, thus modifying the level of OXPHOS at the different differentiation stages of hematopoietic cells, while, at the same time, it ensures the building blocks and energy for differentiation. Aberrations in both the metabolic status and regulation of the autophagic machinery are implicated in the development of hematologic malignancies, especially in leukemogenesis. In this review, we aim to investigate the role of metabolism and autophagy, as well as their interconnections, in normal and malignant hematopoiesis.
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Wang C, Wang Y, Shen L. Mitochondrial proteins in heart failure: The role of deacetylation by SIRT3. Pharmacol Res 2021; 172:105802. [PMID: 34363948 DOI: 10.1016/j.phrs.2021.105802] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/29/2021] [Accepted: 08/03/2021] [Indexed: 12/28/2022]
Abstract
Heart failure (HF) is still the leading cause of death worldwide, occurring with a variety of complex mechanisms. However, most intervention for HF do not directly target the pathological mechanisms underlying cell damage in failing cardiomyocytes. Mitochondria are involved in many physiological processes, which is an important guarantee for normal heart function. Mitochondrial dysfunction is considered to be the critical node of the development of HF. Strict modulation of the mitochondrial function can ameliorate the myocardial injury and protect cardiac function. Acetylation plays an important role in mitochondrial protein homeostasis, and SIRT3, the most important deacetylation protein in mitochondria, is involved in the maintenance of mitochondrial function. SIRT3 can delay the progression of HF by improving mitochondrial function. Herein we summarize the interaction between SIRT3 and proteins related to mitochondrial function including oxidative phosphorylation (OXPHOS), fatty acid oxidation (FAO), mitochondrial biosynthesis, mitochondrial quality control. In addition, we also sum up the effects of this interaction on HF and the research progress of treatments targeting SIRT3, so as to find potential HF therapeutic for clinical use in the future.
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Affiliation(s)
- Chunfang Wang
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
| | - Yating Wang
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
| | - Li Shen
- Department of Internal Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, 139 Middle Renming Road, Changsha, Hunan 410011, PR China.
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38
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Fu Z, Dean JW, Xiong L, Dougherty MW, Oliff KN, Chen ZME, Jobin C, Garrett TJ, Zhou L. Mitochondrial transcription factor A in RORγt + lymphocytes regulate small intestine homeostasis and metabolism. Nat Commun 2021; 12:4462. [PMID: 34294718 PMCID: PMC8298438 DOI: 10.1038/s41467-021-24755-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Accepted: 06/28/2021] [Indexed: 12/13/2022] Open
Abstract
RORγt+ lymphocytes, including interleukin 17 (IL-17)-producing gamma delta T (γδT17) cells, T helper 17 (Th17) cells, and group 3 innate lymphoid cells (ILC3s), are important immune regulators. Compared to Th17 cells and ILC3s, γδT17 cell metabolism and its role in tissue homeostasis remains poorly understood. Here, we report that the tissue milieu shapes splenic and intestinal γδT17 cell gene signatures. Conditional deletion of mitochondrial transcription factor A (Tfam) in RORγt+ lymphocytes significantly affects systemic γδT17 cell maintenance and reduces ILC3s without affecting Th17 cells in the gut. In vivo deletion of Tfam in RORγt+ lymphocytes, especially in γδT17 cells, results in small intestine tissue remodeling and increases small intestine length by enhancing the type 2 immune responses in mice. Moreover, these mice show dysregulation of the small intestine transcriptome and metabolism with less body weight but enhanced anti-helminth immunity. IL-22, a cytokine produced by RORγt+ lymphocytes inhibits IL-13-induced tuft cell differentiation in vitro, and suppresses the tuft cell-type 2 immune circuit and small intestine lengthening in vivo, highlighting its key role in gut tissue remodeling.
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Affiliation(s)
- Zheng Fu
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Joseph W Dean
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Lifeng Xiong
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | | | - Kristen N Oliff
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
| | - Zong-Ming E Chen
- Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
| | - Christian Jobin
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA
- Department of Medicine, University of Florida, Gainesville, FL, USA
| | - Timothy J Garrett
- Department of Pathology, Immunology and Laboratory Medicine, University of Florida, Gainesville, FL, 32608, USA
| | - Liang Zhou
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, USA.
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Meng X, Pang H, Sun F, Jin X, Wang B, Yao K, Yao L, Wang L, Hu Z. Simultaneous 3-Nitrophenylhydrazine Derivatization Strategy of Carbonyl, Carboxyl and Phosphoryl Submetabolome for LC-MS/MS-Based Targeted Metabolomics with Improved Sensitivity and Coverage. Anal Chem 2021; 93:10075-10083. [PMID: 34270209 DOI: 10.1021/acs.analchem.1c00767] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Metabolomics is a powerful and essential technology for profiling metabolic phenotypes and exploring metabolic reprogramming, which enables the identification of biomarkers and provides mechanistic insights into physiology and disease. However, its applications are still limited by the technical challenges particularly in its detection sensitivity for the analysis of biological samples with limited amount, necessitating the development of highly sensitive approaches. Here, we developed a highly sensitive liquid chromatography tandem mass spectrometry method based on a 3-nitrophenylhydrazine (3-NPH) derivatization strategy that simultaneously targets carbonyl, carboxyl, and phosphoryl groups for targeted metabolomic analysis (HSDccp-TM) in biological samples. By testing 130 endogenous metabolites including organic acids, amino acids, carbohydrates, nucleotides, carnitines, and vitamins, we showed that the derivatization strategy resulted in significantly improved detection sensitivity and chromatographic separation capability. Metabolic profiling of merely 60 oocytes and 5000 hematopoietic stem cells primarily isolated from mice demonstrated that this method enabled routine metabolomic analysis in trace amounts of biospecimens. Moreover, the derivatization strategy bypassed the tediousness of inferring the MS fragmentation patterns and simplified the complexity of monitoring ion pairs of metabolites, which greatly facilitated the metabolic flux analysis (MFA) for glycolysis, the tricarboxylic acid (TCA) cycle, and pentose phosphate pathway (PPP) in cell cultures. In summary, the novel 3-NPH derivatization-based method with high sensitivity, good chromatographic separation, and broad coverage showed great potential in promoting metabolomics and MFA, especially in trace amounts of biospecimens.
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Affiliation(s)
- Xiangjun Meng
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Huanhuan Pang
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Fei Sun
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Xiaohan Jin
- Department of Biochemistry and Molecular Biology, Capital Medical University, Beijing 100069, China
| | - Bohong Wang
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Ke Yao
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - LiAng Yao
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
| | - Lijuan Wang
- School of Life Sciences, Tsinghua University, Beijing 100084, China
| | - Zeping Hu
- School of Pharmaceutical Sciences, Tsinghua-Peking Joint Center for Life Sciences, Beijing Frontier Research Center for Biological Structure, Tsinghua University, Beijing 100084, China
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40
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Santos JH. Mitochondria signaling to the epigenome: A novel role for an old organelle. Free Radic Biol Med 2021; 170:59-69. [PMID: 33271282 PMCID: PMC8166959 DOI: 10.1016/j.freeradbiomed.2020.11.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/23/2022]
Abstract
Epigenetic modifications influence gene expression programs ultimately dictating physiological outcomes. In the past decades, an increasing body of work has demonstrated that the enzymes that deposit and/or remove epigenetic marks on DNA or histones use metabolites as substrates or co-factors, rendering the epigenome sensitive to metabolic changes. In this context, acetyl-CoA and α-ketoglutarate have been recognized as critical for epigenetics, impinging on histone marks and nuclear DNA methylation patterns. Given that these metabolites are primarily generated in the mitochondria through the tricarboxylic acid cycle (TCA), the requirement of proper mitochondrial function for maintenance of the epigenetic landscape seems obvious. Nevertheless, it was not until recently when the epigenomic outcomes of mitochondrial dysfunction were tested, revealing mitochondria's far-reaching impact on epigenetics. This review will focus on data that directly tested the role of mitochondria on the epigenetic landscape, the mechanisms by which mitochondrial dysfunction may dysregulate the epigenome and gene expression, and their potential implications to health and disease.
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Affiliation(s)
- Janine Hertzog Santos
- National Toxicology Program Laboratory (NTPL), National Toxicology Program (NTP), National Institute of Environmental Health Sciences (NIEHS), Research Triangle Park (RTP), NC, USA.
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41
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Grzywa TM, Nowis D, Golab J. The role of CD71 + erythroid cells in the regulation of the immune response. Pharmacol Ther 2021; 228:107927. [PMID: 34171326 DOI: 10.1016/j.pharmthera.2021.107927] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2021] [Revised: 05/13/2021] [Accepted: 05/18/2021] [Indexed: 02/07/2023]
Abstract
Complex regulation of the immune response is necessary to support effective defense of an organism against hostile invaders and to maintain tolerance to harmless microorganisms and autoantigens. Recent studies revealed previously unappreciated roles of CD71+ erythroid cells (CECs) in regulation of the immune response. CECs physiologically reside in the bone marrow where erythropoiesis takes place. Under stress conditions, CECs are enriched in some organs outside of the bone marrow as a result of extramedullary erythropoiesis. However, the role of CECs goes well beyond the production of erythrocytes. In neonates, increased numbers of CECs contribute to their vulnerability to infectious diseases. On the other side, neonatal CECs suppress activation of immune cells in response to abrupt colonization with commensal microorganisms after delivery. CECs are also enriched in the peripheral blood of pregnant women as well as in the placenta and are responsible for the regulation of feto-maternal tolerance. In patients with cancer, anemia leads to increased frequency of CECs in the peripheral blood contributing to diminished antiviral and antibacterial immunity, as well as to accelerated cancer progression. Moreover, recent studies revealed the role of CECs in HIV and SARS-CoV-2 infections. CECs use a full arsenal of mechanisms to regulate immune response. These cells suppress proinflammatory responses of myeloid cells and T-cell proliferation by the depletion of ʟ-arginine by arginase. Moreover, CECs produce reactive oxygen species to decrease T-cell proliferation. CECs also secrete cytokines, including transforming growth factor β (TGF-β), which promotes T-cell differentiation into regulatory T-cells. Here, we comprehensively describe the role of CECs in orchestrating immune response and indicate some therapeutic approaches that might be used to regulate their effector functions in the treatment of human conditions.
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Affiliation(s)
- Tomasz M Grzywa
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Doctoral School, Medical University of Warsaw, Zwirki and Wigury 61 Street, 02-091 Warsaw, Poland; Laboratory of Experimental Medicine, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland.
| | - Dominika Nowis
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Laboratory of Experimental Medicine, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland.
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, Nielubowicza 5 Street, 02-097 Warsaw, Poland; Centre of Preclinical Research, Medical University of Warsaw, Banacha 1b Street, 02-097 Warsaw, Poland.
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Mitochondrial dysfunction: A potential target for Alzheimer's disease intervention and treatment. Drug Discov Today 2021; 26:1991-2002. [PMID: 33962036 DOI: 10.1016/j.drudis.2021.04.025] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Revised: 02/05/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is an irreversible neurodegenerative brain disorder which manifests as a progressive decline in cognitive function. Mitochondrial dysfunction plays a critical role in the early stages of AD, and advances the progression of this age-related neurodegenerative disorder. Therefore, it can be a potential target for interventions to treat AD. Several therapeutic strategies to target mitochondrial dysfunction have gained significant attention in the preclinical stage, but the clinical trials performed to date have shown little progress. Thus, we discuss the mechanisms and strategies of different therapeutic agents for targeting mitochondrial dysfunction in AD. We hope that this review will inspire and guide the development of efficient AD drugs in the future.
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Abstract
PURPOSE OF REVIEW Erythropoiesis is a hierarchical process by which hematopoietic stem cells give rise to red blood cells through gradual cell fate restriction and maturation. Deciphering this process requires the establishment of dynamic gene regulatory networks (GRNs) that predict the response of hematopoietic cells to signals from the environment. Although GRNs have historically been derived from transcriptomic data, recent proteomic studies have revealed a major role for posttranscriptional mechanisms in regulating gene expression during erythropoiesis. These new findings highlight the need to integrate proteomic data into GRNs for a refined understanding of erythropoiesis. RECENT FINDINGS Here, we review recent proteomic studies that have furthered our understanding of erythropoiesis with a focus on quantitative mass spectrometry approaches to measure the abundance of transcription factors and cofactors during differentiation. Furthermore, we highlight challenges that remain in integrating transcriptomic, proteomic, and other omics data into a predictive model of erythropoiesis, and discuss the future prospect of single-cell proteomics. SUMMARY Recent proteomic studies have considerably expanded our knowledge of erythropoiesis beyond the traditional transcriptomic-centric perspective. These findings have both opened up new avenues of research to increase our understanding of erythroid differentiation, while at the same time presenting new challenges in integrating multiple layers of information into a comprehensive gene regulatory model.
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Affiliation(s)
- Marjorie Brand
- Sprott Center for Stem Cell Research, Ottawa Hospital Research Institute, Ottawa, ON K1H8L6, Canada
- Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, ON K1H8L6, Canada
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44
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Matte A, Federti E, Kung C, Kosinski PA, Narayanaswamy R, Russo R, Federico G, Carlomagno F, Desbats MA, Salviati L, Leboeuf C, Valenti MT, Turrini F, Janin A, Yu S, Beneduce E, Ronseaux S, Iatcenko I, Dang L, Ganz T, Jung CL, Iolascon A, Brugnara C, De Franceschi L. The pyruvate kinase activator mitapivat reduces hemolysis and improves anemia in a β-thalassemia mouse model. J Clin Invest 2021; 131:144206. [PMID: 33822774 DOI: 10.1172/jci144206] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Accepted: 03/31/2021] [Indexed: 12/24/2022] Open
Abstract
Anemia in β-thalassemia is related to ineffective erythropoiesis and reduced red cell survival. Excess free heme and accumulation of unpaired α-globin chains impose substantial oxidative stress on β-thalassemic erythroblasts and erythrocytes, impacting cell metabolism. We hypothesized that increased pyruvate kinase activity induced by mitapivat (AG-348) in the Hbbth3/+ mouse model for β-thalassemia would reduce chronic hemolysis and ineffective erythropoiesis through stimulation of red cell glycolytic metabolism. Oral mitapivat administration ameliorated ineffective erythropoiesis and anemia in Hbbth3/+ mice. Increased ATP, reduced reactive oxygen species production, and reduced markers of mitochondrial dysfunction associated with improved mitochondrial clearance suggested enhanced metabolism following mitapivat administration in β-thalassemia. The amelioration of responsiveness to erythropoietin resulted in reduced soluble erythroferrone, increased liver Hamp expression, and diminished liver iron overload. Mitapivat reduced duodenal Dmt1 expression potentially by activating the pyruvate kinase M2-HIF2α axis, representing a mechanism additional to Hamp in controlling iron absorption and preventing β-thalassemia-related liver iron overload. In ex vivo studies on erythroid precursors from patients with β-thalassemia, mitapivat enhanced erythropoiesis, promoted erythroid maturation, and decreased apoptosis. Overall, pyruvate kinase activation as a treatment modality for β-thalassemia in preclinical model systems had multiple beneficial effects in the erythropoietic compartment and beyond, providing a strong scientific basis for further clinical trials.
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Affiliation(s)
- Alessandro Matte
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | - Enrica Federti
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | - Charles Kung
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | | | | | - Roberta Russo
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, and CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Giorgia Federico
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, and CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Francesca Carlomagno
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, and CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Maria Andrea Desbats
- Clinical Genetics Unit, Department of Women and Children's Health, University of Padova, and Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Leonardo Salviati
- Clinical Genetics Unit, Department of Women and Children's Health, University of Padova, and Fondazione Istituto di Ricerca Pediatrica Città della Speranza, Padova, Italy
| | - Christophe Leboeuf
- Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Université Paris 7 - Denis Diderot, Paris, France.,AP-HP, Hôpital Saint-Louis, Paris, France
| | - Maria Teresa Valenti
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | | | - Anne Janin
- Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France.,Université Paris 7 - Denis Diderot, Paris, France.,AP-HP, Hôpital Saint-Louis, Paris, France
| | - Shaoxia Yu
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Elisabetta Beneduce
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | | | - Iana Iatcenko
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | - Lenny Dang
- Agios Pharmaceuticals, Inc., Cambridge, Massachusetts, USA
| | - Tomas Ganz
- Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA
| | - Chun-Ling Jung
- Department of Medicine, David Geffen School of Medicine at University of California Los Angeles, Los Angeles, California, USA
| | - Achille Iolascon
- Dipartimento di Medicina Molecolare e Biotecnologie Mediche, Università degli Studi di Napoli Federico II, and CEINGE Biotecnologie Avanzate, Naples, Italy
| | - Carlo Brugnara
- Department of Laboratory Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Lucia De Franceschi
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
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45
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Swann JW, Koneva LA, Regan-Komito D, Sansom SN, Powrie F, Griseri T. IL-33 promotes anemia during chronic inflammation by inhibiting differentiation of erythroid progenitors. J Exp Med 2021; 217:151849. [PMID: 32520308 PMCID: PMC7478740 DOI: 10.1084/jem.20200164] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/10/2020] [Accepted: 05/08/2020] [Indexed: 12/14/2022] Open
Abstract
An important comorbidity of chronic inflammation is anemia, which may be related to dysregulated activity of hematopoietic stem and progenitor cells (HSPCs) in the bone marrow (BM). Among HSPCs, we found that the receptor for IL-33, ST2, is expressed preferentially and highly on erythroid progenitors. Induction of inflammatory spondyloarthritis in mice increased IL-33 in BM plasma, and IL-33 was required for inflammation-dependent suppression of erythropoiesis in BM. Conversely, administration of IL-33 in healthy mice suppressed erythropoiesis, decreased hemoglobin expression, and caused anemia. Using purified erythroid progenitors in vitro, we show that IL-33 directly inhibited terminal maturation. This effect was dependent on NF-κB activation and associated with altered signaling events downstream of the erythropoietin receptor. Accordingly, IL-33 also suppressed erythropoietin-accelerated erythropoiesis in vivo. These results reveal a role for IL-33 in pathogenesis of anemia during inflammatory disease and define a new target for its treatment.
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Affiliation(s)
- James W Swann
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Lada A Koneva
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | | | - Stephen N Sansom
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Fiona Powrie
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Thibault Griseri
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
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46
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Rosu A, El Hachem N, Rapino F, Rouault-Pierre K, Jorssen J, Somja J, Ramery E, Thiry M, Nguyen L, Jacquemyn M, Daelemans D, Adams CM, Bonnet D, Chariot A, Close P, Bureau F, Desmet CJ. Loss of tRNA-modifying enzyme Elp3 activates a p53-dependent antitumor checkpoint in hematopoiesis. J Exp Med 2021; 218:e20200662. [PMID: 33507234 PMCID: PMC7849823 DOI: 10.1084/jem.20200662] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 10/23/2020] [Accepted: 11/24/2020] [Indexed: 12/14/2022] Open
Abstract
The hematopoietic system is highly sensitive to perturbations in the translational machinery, of which an emerging level of regulation lies in the epitranscriptomic modification of transfer RNAs (tRNAs). Here, we interrogate the role of tRNA anticodon modifications in hematopoiesis by using mouse models of conditional inactivation of Elp3, the catalytic subunit of Elongator that modifies wobble uridine in specific tRNAs. Loss of Elp3 causes bone marrow failure by inducing death in committing progenitors and compromises the grafting activity of hematopoietic stem cells. Mechanistically, Elp3 deficiency activates a p53-dependent checkpoint in what resembles a misguided amino acid deprivation response that is accompanied by Atf4 overactivation and increased protein synthesis. While deletion of p53 rescues hematopoiesis, loss of Elp3 prompts the development of p53-mutated leukemia/lymphoma, and inactivation of p53 and Elongator cooperatively promotes tumorigenesis. Specific tRNA-modifying enzymes thus condition differentiation and antitumor fate decisions in hematopoietic stem cells and progenitors.
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Affiliation(s)
- Adeline Rosu
- Laboratory of Molecular and Cellular Immunology, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
| | - Najla El Hachem
- Laboratory of Cancer Signaling, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
| | - Francesca Rapino
- Laboratory of Cancer Signaling, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
| | - Kevin Rouault-Pierre
- Haematopoietic Stem Cell Laboratory, Francis Crick Institute, Queen Mary University of London, London, UK
- Centre for Haemato-Oncology, Barts Cancer Institute, Queen Mary University of London, London, UK
| | - Joseph Jorssen
- Laboratory of Molecular and Cellular Immunology, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
| | - Joan Somja
- Laboratory of Pathological Anatomy and Cytology, Centre Hospitalier Universitaire, GIGA-Stem Cells and GIGA-Neurosciences, Liege University, Liège, Belgium
| | - Eve Ramery
- Department of Functional Sciences, Faculty of Veterinary Medicine, Liege University, Liège, Belgium
| | - Marc Thiry
- Laboratory of Cellular and Tissular Biology, GIGA-Stem Cells and GIGA-Neurosciences, Liege University, Liège, Belgium
| | - Laurent Nguyen
- Laboratory of MolecularRegulation of Neurogenesis, GIGA-Stem Cells and GIGA-Neurosciences, Liege University, Liège, Belgium
| | - Maarten Jacquemyn
- KU Leuven Department of Microbiology, Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute, Leuven, Belgium
| | - Dirk Daelemans
- KU Leuven Department of Microbiology, Immunology and Transplantation, Laboratory of Virology and Chemotherapy, Rega Institute, Leuven, Belgium
| | - Christopher M. Adams
- Departments of Internal Medicine and Molecular Physiology and Biophysics, University of Iowa, Iowa City, IA
| | - Dominique Bonnet
- Haematopoietic Stem Cell Laboratory, Francis Crick Institute, Queen Mary University of London, London, UK
| | - Alain Chariot
- Laboratory of Medical Chemistry, GIGA-Stem Cells, Liege University, Liège, Belgium
- Walloon Excellence in Life Sciences and Biotechnology, Wavres, Belgium
| | - Pierre Close
- Laboratory of Cancer Signaling, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
- Walloon Excellence in Life Sciences and Biotechnology, Wavres, Belgium
| | - Fabrice Bureau
- Laboratory of Molecular and Cellular Immunology, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
- Walloon Excellence in Life Sciences and Biotechnology, Wavres, Belgium
| | - Christophe J. Desmet
- Laboratory of Molecular and Cellular Immunology, GIGA-Stem Cells, GIGA-Research, Liege University, Liège, Belgium
- Walloon Excellence in Life Sciences and Biotechnology, Wavres, Belgium
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47
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Whole-body metabolic fate of branched-chain amino acids. Biochem J 2021; 478:765-776. [PMID: 33626142 DOI: 10.1042/bcj20200686] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/01/2021] [Accepted: 02/03/2021] [Indexed: 12/12/2022]
Abstract
Oxidation of branched-chain amino acids (BCAAs) is tightly regulated in mammals. We review here the distribution and regulation of whole-body BCAA oxidation. Phosphorylation and dephosphorylation of the rate-limiting enzyme, branched-chain α-ketoacid dehydrogenase complex directly regulates BCAA oxidation, and various other indirect mechanisms of regulation also exist. Most tissues throughout the body are capable of BCAA oxidation, and the flux of oxidative BCAA disposal in each tissue is influenced by three key factors: 1. tissue-specific preference for BCAA oxidation relative to other fuels, 2. the overall oxidative activity of mitochondria within a tissue, and 3. total tissue mass. Perturbations in BCAA oxidation have been implicated in many disease contexts, underscoring the importance of BCAA homeostasis in overall health.
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48
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Grzywa TM, Justyniarska M, Nowis D, Golab J. Tumor Immune Evasion Induced by Dysregulation of Erythroid Progenitor Cells Development. Cancers (Basel) 2021; 13:870. [PMID: 33669537 PMCID: PMC7922079 DOI: 10.3390/cancers13040870] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/13/2021] [Accepted: 02/15/2021] [Indexed: 02/06/2023] Open
Abstract
Cancer cells harness normal cells to facilitate tumor growth and metastasis. Within this complex network of interactions, the establishment and maintenance of immune evasion mechanisms are crucial for cancer progression. The escape from the immune surveillance results from multiple independent mechanisms. Recent studies revealed that besides well-described myeloid-derived suppressor cells (MDSCs), tumor-associated macrophages (TAMs) or regulatory T-cells (Tregs), erythroid progenitor cells (EPCs) play an important role in the regulation of immune response and tumor progression. EPCs are immature erythroid cells that differentiate into oxygen-transporting red blood cells. They expand in the extramedullary sites, including the spleen, as well as infiltrate tumors. EPCs in cancer produce reactive oxygen species (ROS), transforming growth factor β (TGF-β), interleukin-10 (IL-10) and express programmed death-ligand 1 (PD-L1) and potently suppress T-cells. Thus, EPCs regulate antitumor, antiviral, and antimicrobial immunity, leading to immune suppression. Moreover, EPCs promote tumor growth by the secretion of growth factors, including artemin. The expansion of EPCs in cancer is an effect of the dysregulation of erythropoiesis, leading to the differentiation arrest and enrichment of early-stage EPCs. Therefore, anemia treatment, targeting ineffective erythropoiesis, and the promotion of EPC differentiation are promising strategies to reduce cancer-induced immunosuppression and the tumor-promoting effects of EPCs.
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Affiliation(s)
- Tomasz M. Grzywa
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
- Doctoral School, Medical University of Warsaw, 02-091 Warsaw, Poland
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Magdalena Justyniarska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
| | - Dominika Nowis
- Laboratory of Experimental Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland
| | - Jakub Golab
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; (T.M.G.); (M.J.)
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49
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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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50
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Grønning AGB, Oubounyt M, Kanev K, Lund J, Kacprowski T, Zehn D, Röttger R, Baumbach J. Enabling single-cell trajectory network enrichment. NATURE COMPUTATIONAL SCIENCE 2021; 1:153-163. [PMID: 38217228 DOI: 10.1038/s43588-021-00025-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Accepted: 01/15/2021] [Indexed: 01/15/2024]
Abstract
Single-cell sequencing (scRNA-seq) technologies allow the investigation of cellular differentiation processes with unprecedented resolution. Although powerful software packages for scRNA-seq data analysis exist, systems biology-based tools for trajectory analysis are rare and typically difficult to handle. This hampers biological exploration and prevents researchers from gaining deeper insights into the molecular control of developmental processes. Here, to address this, we have developed Scellnetor; a network-constraint time-series clustering algorithm. It allows extraction of temporal differential gene expression network patterns (modules) that explain the difference in regulation of two developmental trajectories. Using well-characterized experimental model systems, we demonstrate the capacity of Scellnetor as a hypothesis generator to identify putative mechanisms driving haematopoiesis or mechanistically interpretable subnetworks driving dysfunctional CD8 T-cell development in chronic infections. Altogether, Scellnetor allows for single-cell trajectory network enrichment, which effectively lifts scRNA-seq data analysis to a systems biology level.
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Affiliation(s)
- Alexander G B Grønning
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark.
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
| | - Mhaned Oubounyt
- Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
- Chair of Computational Systems Biology, University of Hamburg, Hamburg, Germany
| | - Kristiyan Kanev
- Division of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Jesper Lund
- Department of Biostatistics and Epidemiology, University of Southern Denmark, Odense, Denmark
| | - Tim Kacprowski
- Division Data Science in Biomedicine, Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Hannover Medical School, Brunswick, Germany
| | - Dietmar Zehn
- Division of Animal Physiology and Immunology, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany
| | - Richard Röttger
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark
| | - Jan Baumbach
- Department of Mathematics and Computer Science, University of Southern Denmark, Odense, Denmark.
- Chair of Experimental Bioinformatics, TUM School of Life Sciences Weihenstephan, Technical University of Munich, Freising, Germany.
- Chair of Computational Systems Biology, University of Hamburg, Hamburg, Germany.
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