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Liao X, Wu H, Liu K, Bai Y, Wu D, Guo C, Liu X, Zhang Z, Huang Y, Zhao N, Xiao Y, Deng Q. The effects and potential mechanisms of essential metals on the associations of polycyclic aromatic hydrocarbons with blood cell-based inflammation markers. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 349:123856. [PMID: 38556152 DOI: 10.1016/j.envpol.2024.123856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/07/2024] [Accepted: 03/22/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Polycyclic aromatic hydrocarbons (PAHs) are well-acknowledged pro-inflammatory chemicals, but their associations with blood cell-based inflammatory biomarkers need further investigation. Moreover, the effects and mechanisms of essential metals on PAH-related inflammation remain poorly understood. OBJECTS To elucidate the associations of PAHs on inflammatory biomarkers, as well as the effects and mechanisms of essential metals on these associations. METHODS A cross-sectional study was conducted on 1388 coke oven workers. We analyzed the modification effects of key essential metal(s) on PAHs-inflammatory biomarkers associations. To explore the possible mechanisms from an inflammation perspective, we performed a bioinformatic analysis on the genes of PAHs and essential metals obtained from the Comparative Toxicogenomics Database (CTD) and performed a mediation analysis. RESULTS We observed associations of PAHs and essential metals with lymphocyte-to-monocyte ratio (LMR) (P < 0.05). PAH mixtures were inversely associated with LMR (βQGC-index = -0.18, P < 0.001), with 1-hydroxypyrene (1-OH-Pyr) being the most prominent contributor (weight = 63.37%), whereas a positive association between essential metal mixtures and LMR was observed (βQGC-index = 0.14, P < 0.001), with tin being the most significant contributor (weight = 51.61%). An inverse association of 1-OH-Pyr with LMR was weakened by increased tin exposure (P < 0.05). The CTD database showed that PAHs and tin compounds co-regulated 22 inflammation-associated genes, but they regulated most genes in opposite directions. Further identified the involvement of oxidative stress and mediation analysis showed that the mediation effect of 8-hydroxydeoxyguanosine (8-OHdG) on 1-OH-Pyr-LMR association presented heterogeneity between low and high tin tertile groups (I2 = 37.84%). CONCLUSION 1-OH-Pyr and tin were significantly associated with LMR. Modification effects indicated that the inverse association of 1-OH-Pyr with LMR was mitigated with an increase in tin. The mediation effect of 8-OHdG on the inverse association of 1-OH-Pyr with LMR may be partially dependent on tin.
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Affiliation(s)
- Xiaojing Liao
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Haimei Wu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Kang Liu
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Yansen Bai
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Degang Wu
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Chaofan Guo
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Xin Liu
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Zhaorui Zhang
- School of Public Health, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China
| | - Yongshun Huang
- Department of Occupational Medicine, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, 510300, Guangdong, China
| | - Na Zhao
- Department of Occupational Medicine, Guangdong Province Hospital for Occupational Disease Prevention and Treatment, Guangzhou, 510300, Guangdong, China
| | - Yongmei Xiao
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China
| | - Qifei Deng
- Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, 510080, Guangdong, China; School of Public Health, Guangzhou Medical University, Guangzhou, 511436, Guangdong, China.
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2
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Li Z, Yan M, Wang Z, An Y, Wei X, Li T, Xu M, Xia Y, Wang L, Gao C. Ferroptosis of Endothelial Cells Triggered by Erythrophagocytosis Contributes to Thrombogenesis in Uremia. Thromb Haemost 2023; 123:1116-1128. [PMID: 37364609 PMCID: PMC10686749 DOI: 10.1055/a-2117-7890] [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: 06/12/2023] [Indexed: 06/28/2023]
Abstract
BACKGROUND Although thrombosis events are the leading complication of uremia, their mechanism is largely unknown. The interaction between endothelial cells (ECs) and red blood cells (RBCs) in uremic solutes and its prothrombotic role need to be investigated. METHODS AND RESULTS Here, we established an in vitro co-incubation model of uremic RBC and EC as well as a uremic rat model induced by adenine. Using flow cytometry, confocal microscopy, and electron microscopy, we found increased erythrophagocytosis by EC accompanied by increased reactive oxygen species, lipid peroxidation, and impairment of mitochondria, indicating that ECs undergo ferroptosis. Further investigations showed increased proteins' expression of heme oxygenase-1 and ferritin and labile iron pool accumulation in EC, which could be suppressed by deferoxamine (DFO). The ferroptosis-negative regulators glutathione peroxidase 4 and SLC7A11 were decreased in our erythrophagocytosis model and could be enhanced by ferrostatin-1 or DFO. In vivo, we observed that vascular EC phagocytosed RBC and underwent ferroptosis in the kidney of the uremic rat, which could be inhibited by blocking the phagocytic pathway or inhibiting ferroptosis. Next, we found that the high tendency of thrombus formation was accompanied by erythrophagocytosis-induced ferroptosis in vitro and in vivo. Importantly, we further revealed that upregulated TMEM16F expression mediated phosphatidylserine externalization on ferroptotic EC, which contributed to a uremia-associated hypercoagulable state. CONCLUSION Our results indicate that erythrophagocytosis-triggered ferroptosis followed by phosphatidylserine exposure of EC may play a key role in uremic thrombotic complications, which may be a promising target to prevent thrombogenesis of uremia.
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Affiliation(s)
- Zhanni Li
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Meishan Yan
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Zelong Wang
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Yao An
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Xinyu Wei
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Tingting Li
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Minghui Xu
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Yanshi Xia
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
| | - Liqiu Wang
- Department of Clinical Laboratory, The Fifth Hospital, Harbin Medical University, Daqing, China
| | - Chunyan Gao
- Department of Medical Laboratory Science and Technology, Harbin Medical University-Daqing, Daqing, China
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3
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Chen Y, Guo X, Zeng Y, Mo X, Hong S, He H, Li J, Fatima S, Liu Q. Oxidative stress induces mitochondrial iron overload and ferroptotic cell death. Sci Rep 2023; 13:15515. [PMID: 37726294 PMCID: PMC10509277 DOI: 10.1038/s41598-023-42760-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Accepted: 09/14/2023] [Indexed: 09/21/2023] Open
Abstract
Oxidative stress has been shown to induce cell death in a wide range of human diseases including cardiac ischemia/reperfusion injury, drug induced cardiotoxicity, and heart failure. However, the mechanism of cell death induced by oxidative stress remains incompletely understood. Here we provide new evidence that oxidative stress primarily induces ferroptosis, but not apoptosis, necroptosis, or mitochondria-mediated necrosis, in cardiomyocytes. Intriguingly, oxidative stress induced by organic oxidants such as tert-butyl hydroperoxide (tBHP) and cumene hydroperoxide (CHP), but not hydrogen peroxide (H2O2), promoted glutathione depletion and glutathione peroxidase 4 (GPX4) degradation in cardiomyocytes, leading to increased lipid peroxidation. Moreover, elevated oxidative stress is also linked to labile iron overload through downregulation of the transcription suppressor BTB and CNC homology 1 (Bach1), upregulation of heme oxygenase 1 (HO-1) expression, and enhanced iron release via heme degradation. Strikingly, oxidative stress also promoted HO-1 translocation to mitochondria, leading to mitochondrial iron overload and lipid reactive oxygen species (ROS) accumulation. Targeted inhibition of mitochondrial iron overload or ROS accumulation, by overexpressing mitochondrial ferritin (FTMT) or mitochondrial catalase (mCAT), respectively, markedly inhibited oxidative stress-induced ferroptosis. The levels of mitochondrial iron and lipid peroxides were also markedly increased in cardiomyocytes subjected to simulated ischemia and reperfusion (sI/R) or the chemotherapeutic agent doxorubicin (DOX). Overexpressing FTMT or mCAT effectively prevented cardiomyocyte death induced by sI/R or DOX. Taken together, oxidative stress induced by organic oxidants but not H2O2 primarily triggers ferroptotic cell death in cardiomyocyte through GPX4 and Bach1/HO-1 dependent mechanisms. Our results also reveal mitochondrial iron overload via HO-1 mitochondrial translocation as a key mechanism as well as a potential molecular target for oxidative stress-induced ferroptosis in cardiomyocytes.
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Affiliation(s)
- Yi Chen
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Xiaoyun Guo
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Yachang Zeng
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Xiaoliang Mo
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Siqi Hong
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Hui He
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Jing Li
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Sulail Fatima
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA
| | - Qinghang Liu
- Department of Physiology and Biophysics, School of Medicine, University of Washington, 1705 NE Pacific Street, G424, Box 357290, Seattle, WA, 98195-7290, USA.
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Xiao L, Tang R, Wang J, Wan D, Yin Y, Xie L. Gut microbiota bridges the iron homeostasis and host health. SCIENCE CHINA. LIFE SCIENCES 2023; 66:1952-1975. [PMID: 37515687 DOI: 10.1007/s11427-022-2302-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 02/08/2023] [Indexed: 07/31/2023]
Abstract
The gut microbiota acts as a symbiotic microecosystem that plays an indispensable role in the regulation of a number of metabolic processes in the host by secreting secondary metabolites and impacting the physiology and pathophysiology of numerous organs and tissues through the circulatory system. This relationship, referred to as the "gut-X axis", is associated with the development and progression of disorders, including obesity, fatty liver and Parkinson's disease. Given its importance, the gut flora is a vital research area for the understanding and development of the novel therapeutic approaches for multiple disorders. Iron is a common but necessary element required by both mammals and bacteria. As a result, iron metabolism is closely intertwined with the gut microbiota. The host's iron homeostasis affects the composition of the gut microbiota and the interaction between host and gut microbiota through various mechanisms such as nutrient homeostasis, intestinal peaceability, gut immunity, and oxidative stress. Therefore, understanding the relationship between gut microbes and host iron metabolism is not only of enormous significance to host health but also may offer preventative and therapeutic approaches for a number of disorders that impact both parties. In this review, we delve into the connection between the dysregulation of iron metabolism and dysbiosis of gut microbiota, and how it contributes to the onset and progression of metabolic and chronic diseases.
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Affiliation(s)
- Lanling Xiao
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China
- University of Chinese Academy of Sciences, Beijing, 101408, China
| | - Rui Tang
- Department of Psychiatry, The First Affiliated Hospital of Jinan University, Guangzhou, 510000, China
| | - Jie Wang
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China
- Department of Life Sciences, Imperial College London, London, SW7 2AZ, UK
| | - Dan Wan
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
- University of Chinese Academy of Sciences, Beijing, 101408, China.
| | - Yulong Yin
- Laboratory of Animal Nutritional Physiology and Metabolic Process, Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha, 410125, China.
- University of Chinese Academy of Sciences, Beijing, 101408, China.
| | - Liwei Xie
- State Key Laboratory of Applied Microbiology Southern China, Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, Guangdong Open Laboratory of Applied Microbiology, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, 510070, China.
- Department of Endocrinology and Metabolism, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China.
- Department of Stomatology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde, Foshan), Foshan, 528308, China.
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5
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Liu R, Zhang X, Nie L, Sun S, Liu J, Chen H. Heme oxygenase 1 in erythropoiesis: an important regulator beyond catalyzing heme catabolism. Ann Hematol 2023; 102:1323-1332. [PMID: 37046065 DOI: 10.1007/s00277-023-05193-7] [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: 01/11/2023] [Accepted: 03/21/2023] [Indexed: 04/14/2023]
Abstract
Heme oxygenase 1 (HO-1), encoded by the HMOX-1 gene, is the main heme oxygenase that catalyzes the degradation of heme into iron, carbon monoxide, and biliverdin. HMOX-1 gene expression is stimulated by oxidative stress and regulated at transcriptional and post-transcriptional levels. After translation, subcellular location and protein stability of HO-1 are also altered by different extracellular and intracellular stimuli. HO-1 plays a key role in regulating iron homeostasis and cell protection and has become a new target for disease treatment. Erythropoiesis is a tightly controlled, iron-dependent process that begins with hematopoietic stem cells and maturates to red blood cells. HO-1 is expressed in hematopoietic stem/progenitor cells, hematopoietic niche cells, erythroblasts, and especially erythroblastic island and phagocytic macrophages. HO-1 functions importantly in the entire erythroid development process by influencing hematopoietic stem cell proliferation, erythroid lineage engagement, terminal erythroid differentiation, and even senescent RBC erythrophagocytosis. HO-1 is also related to stress erythropoiesis and certain red blood cell diseases. Elucidation of HO-1 regulation and function in erythropoiesis will be of great significance for the treatment of related diseases.
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Affiliation(s)
- Rui Liu
- Molecular Biology Research Center, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, Hunan Province, 410078, People's Republic of China
| | - Xuzhi Zhang
- Molecular Biology Research Center, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, Hunan Province, 410078, People's Republic of China
- Xiangya School of Medicine, Central South University, Changsha, Hunan Province, 410013, People's Republic of China
| | - Ling Nie
- Xiangya Hospital, Central South University, Changsha, Hunan Province, 410008, People's Republic of China
| | - Shuming Sun
- Molecular Biology Research Center, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, Hunan Province, 410078, People's Republic of China
| | - Jing Liu
- Molecular Biology Research Center, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, Hunan Province, 410078, People's Republic of China
| | - Huiyong Chen
- Molecular Biology Research Center, School of Life Sciences; Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, Hunan Province, 410078, People's Republic of China.
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6
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Peng Y, Liang L, Zhang H, Liu H, Zhang G, Sun S, Guo X, Wang Y, Hu B, Liu R, Li Y, Nie L, Zhang J, Ye M, Ginzburg YZ, Lin Z, Yin B, Chen H, Liu J. Single-cell profiling of ineffective erythropoiesis in a mouse model of β-thalassaemia intermedia. Br J Haematol 2023; 201:982-994. [PMID: 36872867 DOI: 10.1111/bjh.18706] [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: 12/12/2022] [Revised: 02/05/2023] [Accepted: 02/08/2023] [Indexed: 03/07/2023]
Abstract
Beta-thalassaemia is an inherited haemoglobin disorder characterised by ineffective erythropoiesis (IE). The detailed pathogenesis of IE remains unclear. In this study, we used single-cell RNA sequencing (scRNA-seq) to examine IE in Th3/+ β-thalassaemic mice. The results showed that the erythroid group was remarkably expanded, and genes involved in biological processes such as iron metabolism, haeme synthesis, protein folding, and response to heat were significantly upregulated from erythroid progenitors to reticulocytes in β-thalassaemic mice. In particular, we identified a unique cell population close to reticulocytes, named ThReticulocytes, characterised by a high level of heat shock protein 70 (Hsp70) expression and dysregulation of iron metabolism and haeme synthesis signalling. Treatment of β-thalassaemic mice with the haeme oxygenase inhibitor tin-mesoporphyrin effectively improved the iron disorder and IE, and the ThReticulocyte population and Hsp70 expression were significantly suppressed. This study revealed in detail the progression of IE at the single-cell level and possibly provided clues to find therapeutic targets in thalassaemia.
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Affiliation(s)
- Yuanliang Peng
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China
| | - Long Liang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Haihang Zhang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Hong Liu
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Guanxiong Zhang
- Department of Dermatology, Xiangya Hospital, Central South University, Changsha, China
| | - Shuming Sun
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Xianfeng Guo
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Yanpeng Wang
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Bin Hu
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Rui Liu
- Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China
| | - Yanan Li
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
| | - Ling Nie
- Xiangya Hospital, Central South University, Changsha, China
| | - Ji Zhang
- Department of Rheumatology, The First Affiliated Hospital of University of South China, Hengyang, China
| | - Mao Ye
- Molecular Science and Biomedicine Laboratory, State Key Laboratory for Chemo/Biosensing and Chemometrics, College of Biology, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Yelena Z Ginzburg
- Division of Hematology and Medical Oncology, Icahn School of Medicine at Mount Sinai, New York City, New York, USA
| | - Zhong Lin
- Reproductive Hospital of Guangxi Zhuang Autonomous Region, Nanning, China
| | - Biao Yin
- Liuzhou Maternity and Child Healthcare Hospital, Liuzhou, China
| | - Huiyong Chen
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China.,Molecular Biology Research Center, Center for Medical Genetics, School of Life Sciences, Central South University, Changsha, China.,Hunan Province Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China
| | - Jing Liu
- Department of Hematology, the Second Xiangya Hospital, Central South University, Changsha, China
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Penglong T, Saensuwanna A, Pholngam N, Tansila N, Buncherd H, Srinoun K. BACH1 regulates erythrophagocytosis and iron-recycling in β-thalassemia. Genes Cells 2023; 28:211-225. [PMID: 36565308 DOI: 10.1111/gtc.13004] [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: 08/31/2022] [Revised: 12/15/2022] [Accepted: 12/22/2022] [Indexed: 12/25/2022]
Abstract
Macrophages play essential roles in erythrophagocytosis and iron recycling. β-thalassemia is characterized by a genetic defect in hemoglobin synthesis, which increases the rate of iron recycling. We previously showed that reduced expression of the BTB and CNC homolog 1 (BACH1) gene leads to increased phagocytosis of abnormal RBCs by activated monocytes. However, the mechanisms underlying this abnormal RBC clearance remained unclear. Herein, the spleen and bone marrow cells of β-thalassemic mice were examined for erythrophagocytosis CD markers and iron-recycling genes. Higher expression levels of CD47 and CD163 on RBCs and macrophages, respectively, were observed in β-thalassemic mice than in wild-type cells. The decreased expression of BACH1 caused an increase in Nrf2, Spic, Slc40a1, and HMOX1 expression in splenic red pulp macrophages of thalassemic mice. To investigate BACH1 regulation, a macrophage cell line was transfected with BACH1-siRNA. Decreased BACH1 expression caused an increase in CD163 expression; however, the expression levels were lower when the cells were cultured in media supplemented with β-thalassemia/HbE patient plasma. Additionally, the iron recycling-related genes SPIC, SLC40A1, and HMOX1 were significantly upregulated in BACH1-suppressed macrophages. Our findings provide insights into BACH1 regulation, which plays an important role in erythrophagocytosis and iron recycling in thalassemic macrophages.
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Affiliation(s)
- Tipparat Penglong
- Department of Pathology, Faculty of Medicine, Prince of Songkla University, Songkhla, Thailand
| | - Apisara Saensuwanna
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Nuttanan Pholngam
- Molecular Medicine Graduate Program, Faculty of Science, Mahidol University, Bangkok, Thailand.,Thalassemia Research Center, Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, Thailand
| | - Natta Tansila
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Hansuk Buncherd
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
| | - Kanitta Srinoun
- Faculty of Medical Technology, Prince of Songkla University, Songkhla, Thailand
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8
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Liu Y, Zeng Y, Lu J, Zhang X, Zhang Z, Li H, Liu P, Ma B, Gu Y, Song L. Correlation of hemoglobin with osteoporosis in elderly Chinese population: A cross-sectional study. Front Public Health 2023; 11:1073968. [PMID: 37124822 PMCID: PMC10133547 DOI: 10.3389/fpubh.2023.1073968] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Accepted: 03/21/2023] [Indexed: 05/02/2023] Open
Abstract
Introduction In the elder population, both low hemoglobin (Hb)/anemia and osteoporosis (OP) are highly prevalent. However, the relationship between Hb and OP is still poorly understood. This study was to evaluate the correlation between Hb and OP in Chinese elderly population. Methods One thousand and sisty-eight individuals aged 55-85 years were enrolled into this cross-sectional study during June 2019-November 2019. Data on the demographics and clinical characteristics were recorded. Detections of complete blood count, liver/kidney function, glucose metabolism and lipid profile, and thoracolumbar X-ray were performed, and bone mineral density (BMD) at lumbar spine 1-4, femur neck, and total hip was measured by dual-energy X-ray absorptiometry (DXA). Univariate and multivariate linear regression analyses were employed to evaluate the correlation between Hb with BMD T-score. Logistic regression analysis was performed to access the correlation between different Hb levels and the odds ratio (OR) for OP. Results Compared with non-OP group, OP patients had lower level of Hb. Univariate linear regression analysis indicated Hb level was positively related to the BMD of lumbar spine 1-4, femur neck and total hip, and this relationship remained after adjusting confounding variables [gender, age, body mass index (BMI), diabetes mellitus (DM) and morphological vertebral fracture]. Logistic regression analysis showed the ORs for OP decreased with the increase of Hb. Compared with the subjects with the lowest quartile of Hb, the OR for OP in the highest quartile group was 0.60 (0.41-0.89) after adjusting for gender, age and BMI, and the OR for OP was 0.62 (0.41-0.92) after further adjustment for gender, age, BMI, DM, and lipid indexes. Discussion In conclusion, Lower Hb level is related to lower BMD in the elderly population. However, whether Hb level could be used to predict the risk of OP needs to be further determined in more longitudinal clinical studies.
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Affiliation(s)
- Yichen Liu
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Osteoporosis and Metabolic Bone Diseases, School of Medicine, Tongji University, Shanghai, China
| | - Yue Zeng
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Osteoporosis and Metabolic Bone Diseases, School of Medicine, Tongji University, Shanghai, China
| | - Jun Lu
- Department of Endocrinology and Metabolism, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoya Zhang
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Osteoporosis and Metabolic Bone Diseases, School of Medicine, Tongji University, Shanghai, China
| | - Zikai Zhang
- Division of Science and Research, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Huijuan Li
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Osteoporosis and Metabolic Bone Diseases, School of Medicine, Tongji University, Shanghai, China
| | - Peipei Liu
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Bin Ma
- Division of Spine, Department of Orthopedics, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Yiqun Gu
- Ganquan Community Health Service Center, Shanghai, China
| | - Lige Song
- Department of Endocrinology, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, China
- Institute of Osteoporosis and Metabolic Bone Diseases, School of Medicine, Tongji University, Shanghai, China
- *Correspondence: Lige Song,
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9
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Costa E, Cappellini MD, Rivella S, Chilin A, Alessi E, Riccaboni M, Leufkens HGM, Luzzatto L. Emergent treatments for β-thalassemia and orphan drug legislations. Drug Discov Today 2022; 27:103342. [PMID: 36058507 DOI: 10.1016/j.drudis.2022.103342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 07/19/2022] [Accepted: 08/29/2022] [Indexed: 01/19/2023]
Abstract
In many countries, β-thalassemia (β-THAL) is not uncommon; however, it qualifies as a rare disease in the US and in European Union (EU), where thalassemia drugs are eligible for Orphan Drug Designation (ODD). In this paper, we evaluate all 28 ODDs for β-THAL granted since 2001 in the US and the EU: of these, ten have since been discontinued, twelve are pending, and six have become licensed drugs available for clinical use. The prime mover for these advances has been the increasing depth of understanding of the pathophysiology of β-THAL; at the same time, and even though only one-fifth of β-THAL ODDs have become licensed drugs, the ODD legislation has clearly contributed substantially to the development of improved treatments for β-THAL.
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Affiliation(s)
- Enrico Costa
- WHO Collaborating Centre for Pharmaceutical Policy and Regulation at Utrecht University, Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Science, Utrecht, the Netherlands.
| | | | - Stefano Rivella
- Department of Pediatrics, Division of Hematology, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA; Cell and Molecular Biology Affinity Group (CAMB), University of Pennsylvania, Philadelphia, PA, USA; Raymond G. Perelman Center for Cellular and Molecular Therapeutics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Penn Center for Musculoskeletal Disorders, The Children's Hospital of Philadelphia, Philadelphia, PA, USA; Institute for Regenerative Medicine, University of Pennsylvania, Philadelphia, PA, USA.
| | - Adriana Chilin
- Department of Pharmaceutical and Pharmacological Sciences, University of Padova, Padova, Italy.
| | | | | | - Hubert G M Leufkens
- Division of Pharmacoepidemiology and Clinical Pharmacology, Utrecht Institute for Pharmaceutical Science, Utrecht, the Netherlands.
| | - Lucio Luzzatto
- Department of Haematology, Muhimbili University of Health and Allied Sciences (MUHAS), Dar es Salaam, Tanzania.
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10
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Yoshinaga M, Han K, Morgens DW, Horii T, Kobayashi R, Tsuruyama T, Hia F, Yasukura S, Kajiya A, Cai T, Cruz PHC, Vandenbon A, Suzuki Y, Kawahara Y, Hatada I, Bassik MC, Takeuchi O. The N 6-methyladenosine methyltransferase METTL16 enables erythropoiesis through safeguarding genome integrity. Nat Commun 2022; 13:6435. [PMID: 36307435 PMCID: PMC9616860 DOI: 10.1038/s41467-022-34078-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 10/12/2022] [Indexed: 02/07/2023] Open
Abstract
During erythroid differentiation, the maintenance of genome integrity is key for the success of multiple rounds of cell division. However, molecular mechanisms coordinating the expression of DNA repair machinery in erythroid progenitors are poorly understood. Here, we discover that an RNA N6-methyladenosine (m6A) methyltransferase, METTL16, plays an essential role in proper erythropoiesis by safeguarding genome integrity via the control of DNA-repair-related genes. METTL16-deficient erythroblasts exhibit defective differentiation capacity, DNA damage and activation of the apoptotic program. Mechanistically, METTL16 controls m6A deposition at the structured motifs in DNA-repair-related transcripts including Brca2 and Fancm mRNAs, thereby upregulating their expression. Furthermore, a pairwise CRISPRi screen revealed that the MTR4-nuclear RNA exosome complex is involved in the regulation of METTL16 substrate mRNAs in erythroblasts. Collectively, our study uncovers that METTL16 and the MTR4-nuclear RNA exosome act as essential regulatory machinery to maintain genome integrity and erythropoiesis.
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Affiliation(s)
- Masanori Yoshinaga
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Kyuho Han
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - David W. Morgens
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Takuro Horii
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan
| | - Ryosuke Kobayashi
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan
| | - Tatsuaki Tsuruyama
- grid.258799.80000 0004 0372 2033Department of Drug and Discovery Medicine, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Fabian Hia
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Shota Yasukura
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Asako Kajiya
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Ting Cai
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
| | - Pedro H. C. Cruz
- grid.136593.b0000 0004 0373 3971Department of RNA Biology and Neuroscience, Graduate School of Medicine, Osaka University, Osaka, 565-0871 Japan
| | - Alexis Vandenbon
- grid.258799.80000 0004 0372 2033Laboratory of Tissue Homeostasis, Institute for Life and Medical Sciences, Kyoto University, Kyoto, 606-8507 Japan
| | - Yutaka Suzuki
- grid.26999.3d0000 0001 2151 536XLaboratory of Functional Genomics, Department of Medical Genome Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Chiba, 277-8562 Japan
| | - Yukio Kawahara
- grid.136593.b0000 0004 0373 3971Department of RNA Biology and Neuroscience, Graduate School of Medicine, Osaka University, Osaka, 565-0871 Japan
| | - Izuho Hatada
- grid.256642.10000 0000 9269 4097Laboratory of Genome Science, Biosignal Genome Resource Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, 371-8512 Japan ,grid.256642.10000 0000 9269 4097Viral Vector Core, Gunma University Initiative for Advanced Research (GIAR), Gunma, 371-8512 Japan
| | - Michael C. Bassik
- grid.168010.e0000000419368956Department of Genetics, Stanford University School of Medicine, Stanford, CA 94305 USA
| | - Osamu Takeuchi
- grid.258799.80000 0004 0372 2033Department of Medical Chemistry, Graduate School of Medicine, Kyoto University, Kyoto, 606-8501 Japan
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11
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Kralova B, Sochorcova L, Song J, Jahoda O, Hlusickova Kapralova K, Prchal JT, Divoky V, Horvathova M. Developmental changes in iron metabolism and erythropoiesis in mice with human gain-of-function erythropoietin receptor. Am J Hematol 2022; 97:1286-1299. [PMID: 35815815 DOI: 10.1002/ajh.26658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 07/05/2022] [Indexed: 01/24/2023]
Abstract
Iron availability for erythropoiesis is controlled by the iron-regulatory hormone hepcidin. Increased erythropoiesis negatively regulates hepcidin synthesis by erythroferrone (ERFE), a hormone produced by erythroid precursors in response to erythropoietin (EPO). The mechanisms coordinating erythropoietic activity with iron homeostasis in erythrocytosis with low EPO are not well defined as exemplified by dominantly inherited (heterozygous) gain-of-function mutation of human EPO receptor (mtHEPOR) with low EPO characterized by postnatal erythrocytosis. We previously created a mouse model of this mtHEPOR that develops fetal erythrocytosis with a transient perinatal amelioration of erythrocytosis and its reappearance at 3-6 weeks of age. Prenatally and perinatally, mtHEPOR heterozygous and homozygous mice (differing in erythrocytosis severity) had increased Erfe transcripts, reduced hepcidin, and iron deficiency. Epo was transiently normal in the prenatal life; then decreased at postnatal day 7, and remained reduced in adulthood. Postnatally, hepcidin increased in mtHEPOR heterozygotes and homozygotes, accompanied by low Erfe induction and iron accumulation. With aging, the old, especially mtHEPOR homozygotes had a decline of erythropoiesis, myeloid expansion, and local bone marrow inflammatory stress. In addition, mtHEPOR erythrocytes had a reduced lifespan. This, together with reduced iron demand for erythropoiesis, due to its age-related attenuation, likely contributes to increased iron deposition in the aged mtHEPOR mice. In conclusion, the erythroid drive-mediated inhibition of hepcidin production in mtHEPOR mice in the prenatal/perinatal period is postnatally abrogated by increasing iron stores promoting hepcidin synthesis. The differences observed in studied characteristics between mtHEPOR heterozygotes and homozygotes suggest dose-dependent alterations of downstream EPOR stimulation.
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Affiliation(s)
- Barbora Kralova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Lucie Sochorcova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Jihyun Song
- Division of Hematology & Hematologic Malignancies, The University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Ondrej Jahoda
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | | | - Josef T Prchal
- Division of Hematology & Hematologic Malignancies, The University of Utah School of Medicine, Salt Lake City, Utah, USA
| | - Vladimir Divoky
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Monika Horvathova
- Department of Biology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
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12
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Bou-Fakhredin R, De Franceschi L, Motta I, Eid AA, Taher AT, Cappellini MD. Redox Balance in β-Thalassemia and Sickle Cell Disease: A Love and Hate Relationship. Antioxidants (Basel) 2022; 11:antiox11050967. [PMID: 35624830 PMCID: PMC9138068 DOI: 10.3390/antiox11050967] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 05/11/2022] [Accepted: 05/11/2022] [Indexed: 11/16/2022] Open
Abstract
β-thalassemia and sickle cell disease (SCD) are inherited hemoglobinopathies that result in both quantitative and qualitative variations in the β-globin chain. These in turn lead to instability in the generated hemoglobin (Hb) or to a globin chain imbalance that affects the oxidative environment both intracellularly and extracellularly. While oxidative stress is not among the primary etiologies of β-thalassemia and SCD, it plays a significant role in the pathogenesis of these diseases. Different mechanisms exist behind the development of oxidative stress; the result of which is cytotoxicity, causing the oxidation of cellular components that can eventually lead to cell death and organ damage. In this review, we summarize the mechanisms of oxidative stress development in β-thalassemia and SCD and describe the current and potential antioxidant therapeutic strategies. Finally, we discuss the role of targeted therapy in achieving an optimal redox balance.
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Affiliation(s)
- Rayan Bou-Fakhredin
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy; (R.B.-F.); (I.M.)
| | - Lucia De Franceschi
- Department of Medicine, University of Verona, and Azienda Ospedaliera Universitaria Verona, 37128 Verona, Italy;
| | - Irene Motta
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy; (R.B.-F.); (I.M.)
- UOC General Medicine, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Assaad A. Eid
- Department of Anatomy, Cell Biology and Physiological Sciences, Faculty of Medicine, American University of Beirut, Beirut 1107 2020, Lebanon;
| | - Ali T. Taher
- Division of Hematology-Oncology, Department of Internal Medicine, American University of Beirut Medical Center, Beirut 1107 2020, Lebanon;
| | - Maria Domenica Cappellini
- Department of Clinical Sciences and Community Health, University of Milan, 20122 Milan, Italy; (R.B.-F.); (I.M.)
- UOC General Medicine, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
- Correspondence:
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13
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Chauhan W, Shoaib S, Fatma R, Zaka‐ur‐Rab Z, Afzal M. β‐thalassemia, and the advent of new Interventions beyond Transfusion and Iron chelation. Br J Clin Pharmacol 2022; 88:3610-3626. [DOI: 10.1111/bcp.15343] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 03/10/2022] [Accepted: 03/29/2022] [Indexed: 01/19/2023] Open
Affiliation(s)
- Waseem Chauhan
- Human Genetics and Toxicology Laboratory, Department of Zoology Aligarh Muslim University Aligarh India
| | - Shoaib Shoaib
- Department of Biochemistry, JNMC Aligarh Muslim University Aligarh India
| | - Rafat Fatma
- Human Genetics and Toxicology Laboratory, Department of Zoology Aligarh Muslim University Aligarh India
| | - Zeeba Zaka‐ur‐Rab
- Department of Pediatrics, JNMC Aligarh Muslim University Aligarh India
| | - Mohammad Afzal
- Human Genetics and Toxicology Laboratory, Department of Zoology Aligarh Muslim University Aligarh India
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14
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Menon AV, Liu J, Tsai HP, Zeng L, Yang S, Asnani A, Kim J. Excess heme upregulates heme oxygenase 1 and promotes cardiac ferroptosis in mice with sickle cell disease. Blood 2022; 139:936-941. [PMID: 34388243 PMCID: PMC8832481 DOI: 10.1182/blood.2020008455] [Citation(s) in RCA: 72] [Impact Index Per Article: 36.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 08/08/2021] [Indexed: 11/20/2022] Open
Abstract
Sickle cell disease (SCD) is characterized by increased hemolysis, which results in plasma heme overload and ultimately cardiovascular complications. Here, we hypothesized that increased heme in SCD causes upregulation of heme oxygenase 1 (Hmox1), which consequently drives cardiomyopathy through ferroptosis, an iron-dependent non-apoptotic form of cell death. First, we demonstrated that the Townes SCD mice had higher levels of hemopexin-free heme in the serum and increased cardiomyopathy, which was corrected by hemopexin supplementation. Cardiomyopathy in SCD mice was associated with upregulation of cardiac Hmox1, and inhibition or induction of Hmox1 improved or worsened cardiac damage, respectively. Because free iron, a product of heme degradation through Hmox1, has been implicated in toxicities including ferroptosis, we evaluated the downstream effects of elevated heme in SCD. Consistent with Hmox1 upregulation and iron overload, levels of lipid peroxidation and ferroptotic markers increased in SCD mice, which were corrected by hemopexin administration. Moreover, ferroptosis inhibitors decreased cardiomyopathy, whereas a ferroptosis inducer erastin exacerbated cardiac damage in SCD and induced cardiac ferroptosis in nonsickling mice. Finally, inhibition or induction of Hmox1 decreased or increased cardiac ferroptosis in SCD mice, respectively. Together, our results identify ferroptosis as a key mechanism of cardiomyopathy in SCD.
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Affiliation(s)
| | - Jing Liu
- Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, MA; and
| | | | - Lingxue Zeng
- Department of Biomedical & Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA
| | - Seungjeong Yang
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA
| | - Aarti Asnani
- Division of Cardiology, Beth Israel Deaconess Medical Center, Boston, MA; and
| | - Jonghan Kim
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA
- Department of Biomedical & Nutritional Sciences, University of Massachusetts Lowell, Lowell, MA
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15
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Xu J, Xiao C, Song W, Cui X, Pan M, Wang Q, Feng Y, Xu Y. Elevated Heme Oxygenase-1 Correlates With Increased Brain Iron Deposition Measured by Quantitative Susceptibility Mapping and Decreased Hemoglobin in Patients With Parkinson's Disease. Front Aging Neurosci 2021; 13:656626. [PMID: 33815094 PMCID: PMC8012799 DOI: 10.3389/fnagi.2021.656626] [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: 01/21/2021] [Accepted: 02/26/2021] [Indexed: 11/18/2022] Open
Abstract
Background: Brain iron deposition, low hemoglobin (HGB), and increased heme oxygenase-1 (HO-1) have been implicated in Parkinson’s disease (PD). However, the association among them in PD is poorly studied. Objective: To explore the association of the level of HO-1 with brain iron deposition and low level of HGB in PD. Methods: A total of 32 patients with PD and 26 controls were recruited for this study. C57BL/6 male mice were used in generating 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced chronic PD model. The Levels of serum HO-1 and HGB of human subjects and mice were assayed by ELISA, blood routine test, respectively. Quantitative susceptibility mapping (QSM) was used to quantitatively analyze brain iron deposition in human subjects and mice. HO-1 inhibitor (Sn-protoporphyrin, SnPP) was used to suppress the function and expression of HO-1 in PD mice. Correlations between the concentration of serum HO-1 and iron deposition of the region of interests (ROIs), levels of HGB, between the three factors mentioned above, and scores of clinical scales were explored in PD patients. Results: This study revealed significant elevation of the serum HO-1 concentration, iron deposition within bilateral substantial nigra (SN), red nucleus (RN), and putamen (PUT) and decrease of HGB level in PD patients. There was a significantly positive correlation between the serum HO-1 concentration and iron deposition within SN, an inverse correlation between the serum HO-1 concentration and HGB level in PD patients. A significant increase in HO-1 expression of serum and iron deposition in SN was also observed in the PD mouse model, and the SnPP could significantly reduce iron deposition in the SN. Conclusions: The high level of HO-1 may be the common mechanism of iron deposition and low HGB in PD. Therefore, the findings presented in this study indicate that HO-1 correlates with brain iron deposition and anemia in PD.
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Affiliation(s)
- Jinghui Xu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Department of Rehabilitation Medicine, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chi Xiao
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Weizheng Song
- Department of Neurosurgery, the Eighth People's Hospital of Chengdu, Chengdu, China
| | - Xiangqin Cui
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mengqiu Pan
- Department of Neurology, Guangdong 999 Brain Hospital, Guangzhou, China
| | - Qun Wang
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yanqiu Feng
- Guangdong Provincial Key Laboratory of Medical Image Processing, Southern Medical University, Guangzhou, China
| | - Yunqi Xu
- Department of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou, China
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16
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Nithichanon A, Tussakhon I, Samer W, Kewcharoenwong C, Ato M, Bancroft GJ, Lertmemongkolchai G. Immune responses in beta-thalassaemia: heme oxygenase 1 reduces cytokine production and bactericidal activity of human leucocytes. Sci Rep 2020; 10:10297. [PMID: 32581238 PMCID: PMC7314746 DOI: 10.1038/s41598-020-67346-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Accepted: 06/08/2020] [Indexed: 12/17/2022] Open
Abstract
Patients with beta-thalassaemia increase the risk of bacterial infections, particularly Burkholderia pseudomallei (Bp), the causative agent of melioidosis in Thailand. Impaired immune cell functions may be the cause of this susceptibility, but detailed mechanisms have not been defined. In this study, we observed impaired production of IFN-gamma and IL-10 by whole blood from beta-thalassaemia patients upon stimulation with a range of bacteria-derived stimuli. In contrast, IFN-gamma response via TCR and plasma IgG specific for Bp were still intact. Importantly, mRNA expression of heme oxygenase 1 (HO-1), a potential modulator of immune function, was increased in whole blood from beta-thalassaemia patients, either with or without stimulation with Bp in vitro. Induction of HO-1 by hemin or CoPP in vitro reduced production of IFN-gamma and IL-10 from healthy human PBMCs and decreased bacterial clearance activity of whole blood from healthy controls and beta-thalassaemia, while inhibition of HO-1 by SnPP enhanced both functions in healthy controls. These results were confirmed to some extent in purified human monocytes of healthy controls. Our results suggest a mechanism that excess hemin of beta-thalassaemia patients is a significant cause of immune suppression via HO-1 induction and may underlie the susceptibility of these individuals to severe bacterial infection.
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Affiliation(s)
- Arnone Nithichanon
- The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Inthira Tussakhon
- The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Waraporn Samer
- The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chidchamai Kewcharoenwong
- The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Manabu Ato
- Department of Immunology, National Institute of Infectious Diseases, Tokyo, 162-8640, Japan
| | - Gregory J Bancroft
- Department of Infection Biology, London School of Hygiene and Tropical Medicine, London, WC1E 7HT, UK
| | - Ganjana Lertmemongkolchai
- The Centre for Research and Development of Medical Diagnostic Laboratories, Faculty of Associated Medical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
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17
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Humayun F, Domingo-Fernández D, Paul George AA, Hopp MT, Syllwasschy BF, Detzel MS, Hoyt CT, Hofmann-Apitius M, Imhof D. A Computational Approach for Mapping Heme Biology in the Context of Hemolytic Disorders. Front Bioeng Biotechnol 2020; 8:74. [PMID: 32211383 PMCID: PMC7069124 DOI: 10.3389/fbioe.2020.00074] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 01/28/2020] [Indexed: 01/07/2023] Open
Abstract
Heme is an iron ion-containing molecule found within hemoproteins such as hemoglobin and cytochromes that participates in diverse biological processes. Although excessive heme has been implicated in several diseases including malaria, sepsis, ischemia-reperfusion, and disseminated intravascular coagulation, little is known about its regulatory and signaling functions. Furthermore, the limited understanding of heme's role in regulatory and signaling functions is in part due to the lack of curated pathway resources for heme cell biology. Here, we present two resources aimed to exploit this unexplored information to model heme biology. The first resource is a terminology covering heme-specific terms not yet included in standard controlled vocabularies. Using this terminology, we curated and modeled the second resource, a mechanistic knowledge graph representing the heme's interactome based on a corpus of 46 scientific articles. Finally, we demonstrated the utility of these resources by investigating the role of heme in the Toll-like receptor signaling pathway. Our analysis proposed a series of crosstalk events that could explain the role of heme in activating the TLR4 signaling pathway. In summary, the presented work opens the door to the scientific community for exploring the published knowledge on heme biology.
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Affiliation(s)
- Farah Humayun
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
- Department of Bioinformatics, Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin, Germany
| | - Daniel Domingo-Fernández
- Department of Bioinformatics, Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin, Germany
| | - Ajay Abisheck Paul George
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | - Marie-Thérèse Hopp
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | - Benjamin F. Syllwasschy
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | - Milena S. Detzel
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
| | - Charles Tapley Hoyt
- Department of Bioinformatics, Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin, Germany
| | - Martin Hofmann-Apitius
- Department of Bioinformatics, Fraunhofer Institute for Algorithms and Scientific Computing (SCAI), Sankt Augustin, Germany
| | - Diana Imhof
- Pharmaceutical Biochemistry and Bioanalytics, Pharmaceutical Institute, University of Bonn, Bonn, Germany
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18
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Camaschella C, Nai A, Silvestri L. Iron metabolism and iron disorders revisited in the hepcidin era. Haematologica 2020; 105:260-272. [PMID: 31949017 PMCID: PMC7012465 DOI: 10.3324/haematol.2019.232124] [Citation(s) in RCA: 308] [Impact Index Per Article: 77.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2019] [Accepted: 12/18/2019] [Indexed: 02/06/2023] Open
Abstract
Iron is biologically essential, but also potentially toxic; as such it is tightly controlled at cell and systemic levels to prevent both deficiency and overload. Iron regulatory proteins post-transcriptionally control genes encoding proteins that modulate iron uptake, recycling and storage and are themselves regulated by iron. The master regulator of systemic iron homeostasis is the liver peptide hepcidin, which controls serum iron through degradation of ferroportin in iron-absorptive enterocytes and iron-recycling macrophages. This review emphasizes the most recent findings in iron biology, deregulation of the hepcidin-ferroportin axis in iron disorders and how research results have an impact on clinical disorders. Insufficient hepcidin production is central to iron overload while hepcidin excess leads to iron restriction. Mutations of hemochro-matosis genes result in iron excess by downregulating the liver BMP-SMAD signaling pathway or by causing hepcidin-resistance. In iron-loading anemias, such as β-thalassemia, enhanced albeit ineffective ery-thropoiesis releases erythroferrone, which sequesters BMP receptor ligands, thereby inhibiting hepcidin. In iron-refractory, iron-deficiency ane-mia mutations of the hepcidin inhibitor TMPRSS6 upregulate the BMP-SMAD pathway. Interleukin-6 in acute and chronic inflammation increases hepcidin levels, causing iron-restricted erythropoiesis and ane-mia of inflammation in the presence of iron-replete macrophages. Our improved understanding of iron homeostasis and its regulation is having an impact on the established schedules of oral iron treatment and the choice of oral versus intravenous iron in the management of iron deficiency. Moreover it is leading to the development of targeted therapies for iron overload and inflammation, mainly centered on the manipulation of the hepcidin-ferroportin axis.
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Affiliation(s)
- Clara Camaschella
- Regulation of Iron Metabolism Unit, Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan
| | - Antonella Nai
- Regulation of Iron Metabolism Unit, Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan.,Vita Salute San Raffaele University, Milan, Italy
| | - Laura Silvestri
- Regulation of Iron Metabolism Unit, Division of Genetics and Cell Biology, San Raffaele Scientific Institute, Milan.,Vita Salute San Raffaele University, Milan, Italy
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19
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Manolova V, Nyffenegger N, Flace A, Altermatt P, Varol A, Doucerain C, Sundstrom H, Dürrenberger F. Oral ferroportin inhibitor ameliorates ineffective erythropoiesis in a model of β-thalassemia. J Clin Invest 2019; 130:491-506. [PMID: 31638596 PMCID: PMC6934209 DOI: 10.1172/jci129382] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 10/08/2019] [Indexed: 01/01/2023] Open
Abstract
β-Thalassemia is a genetic anemia caused by partial or complete loss of β-globin synthesis, leading to ineffective erythropoiesis and RBCs with a short life span. Currently, there is no efficacious oral medication modifying anemia for patients with β-thalassemia. The inappropriately low levels of the iron regulatory hormone hepcidin enable excessive iron absorption by ferroportin, the unique cellular iron exporter in mammals, leading to organ iron overload and associated morbidities. Correction of unbalanced iron absorption and recycling by induction of hepcidin synthesis or treatment with hepcidin mimetics ameliorates β-thalassemia. However, hepcidin modulation or replacement strategies currently in clinical development all require parenteral drug administration. We identified oral ferroportin inhibitors by screening a library of small molecular weight compounds for modulators of ferroportin internalization. Restricting iron availability by VIT-2763, the first clinical stage oral ferroportin inhibitor, ameliorated anemia and the dysregulated iron homeostasis in the Hbbth3/+ mouse model of β-thalassemia intermedia. VIT-2763 not only improved erythropoiesis but also corrected the proportions of myeloid precursors in spleens of Hbbth3/+ mice. VIT-2763 is currently being developed as an oral drug targeting ferroportin for the treatment of β-thalassemia.
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20
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Matte A, Federti E, Winter M, Koerner A, Harmeier A, Mazer N, Tomka T, Di Paolo ML, De Falco L, Andolfo I, Beneduce E, Iolascon A, Macias-Garcia A, Chen JJ, Janin A, Lebouef C, Turrini F, Brugnara C, De Franceschi L. Bitopertin, a selective oral GLYT1 inhibitor, improves anemia in a mouse model of β-thalassemia. JCI Insight 2019; 4:130111. [PMID: 31593554 DOI: 10.1172/jci.insight.130111] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 10/02/2019] [Indexed: 01/09/2023] Open
Abstract
Anemia of β-thalassemia is caused by ineffective erythropoiesis and reduced red cell survival. Several lines of evidence indicate that iron/heme restriction is a potential therapeutic strategy for the disease. Glycine is a key initial substrate for heme and globin synthesis. We provide evidence that bitopertin, a glycine transport inhibitor administered orally, improves anemia, reduces hemolysis, diminishes ineffective erythropoiesis, and increases red cell survival in a mouse model of β-thalassemia (Hbbth3/+ mice). Bitopertin ameliorates erythroid oxidant damage, as indicated by a reduction in membrane-associated free α-globin chain aggregates, in reactive oxygen species cellular content, in membrane-bound hemichromes, and in heme-regulated inhibitor activation and eIF2α phosphorylation. The improvement of β-thalassemic ineffective erythropoiesis is associated with diminished mTOR activation and Rab5, Lamp1, and p62 accumulation, indicating an improved autophagy. Bitopertin also upregulates liver hepcidin and diminishes liver iron overload. The hematologic improvements achieved by bitopertin are blunted by the concomitant administration of the iron chelator deferiprone, suggesting that an excessive restriction of iron availability might negate the beneficial effects of bitopertin. These data provide important and clinically relevant insights into glycine restriction and reduced heme synthesis strategies for the treatment of β-thalassemia.
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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
| | - Michael Winter
- Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Annette Koerner
- Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Anja Harmeier
- Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Norman Mazer
- Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Tomas Tomka
- Pharmaceutical Research and Early Development, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | | | - Luigia De Falco
- Department of Molecular Medicine and Medical Biotechnology, University Federico II and CEINGE, Naples, Italy
| | - Immacolata Andolfo
- Department of Molecular Medicine and Medical Biotechnology, University Federico II and CEINGE, Naples, Italy
| | - Elisabetta Beneduce
- Department of Medicine, University of Verona and Azienda Ospedaliera Universitaria Verona, Policlinico GB Rossi, Verona, Italy
| | - Achille Iolascon
- Department of Molecular Medicine and Medical Biotechnology, University Federico II and CEINGE, Naples, Italy
| | - Alejandra Macias-Garcia
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jane-Jane Chen
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Anne Janin
- INSERM, U1165, Paris, France.,Université Paris 7 - Denis Diderot, Paris, France.,AP-HP, Hôpital Saint-Louis, Paris, France
| | - Christhophe Lebouef
- INSERM, U1165, Paris, France.,Université Paris 7 - Denis Diderot, Paris, France.,AP-HP, Hôpital Saint-Louis, Paris, France
| | - Franco Turrini
- Department of Oncology, University of Torino, Torino, 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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21
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Huang L, Fu R. [Research progress of characteristics and mechanisms of iron overload affecting bone marrow hematopoiesis]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2019; 40:709-712. [PMID: 31495147 PMCID: PMC7342874 DOI: 10.3760/cma.j.issn.0253-2727.2019.08.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- L Huang
- Department of Hematology, General Hospital, Tianjin Medical University, Tianjin 300052, China
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22
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Abstract
Cell oxidative status, which represents the balance between oxidants and antioxidants, is involved in normal functions. Under pathological conditions, there is a shift toward the oxidants, leading to oxidative stress, which is cytotoxic, causing oxidation of cellular components that result in cell death and organ damage. Thalassemia is a hereditary hemolytic anemia caused by mutations in globin genes that cause reduced or complete absence of specific globin chains (commonly, α or β). Although oxidative stress is not the primary etiology of thalassemia, it mediates several of its pathologies. The main causes of oxidative stress in thalassemia are the degradation of the unstable hemoglobin and iron overload-both stimulate the production of excess free radicals. The symptoms aggravated by oxidative stress include increased hemolysis, ineffective erythropoiesis and functional failure of vital organs such as the heart and liver. The oxidative status of each patient is affected by multiple internal and external factors, including genetic makeup, health conditions, nutrition, physical activity, age, and the environment (e.g., air pollution, radiation). In addition, oxidative stress is influenced by the clinical manifestations of the disease (unpaired globin chains, iron overload, anemia, etc.). Application of personalized (theranostics) medicine principles, including diagnostic tests for selecting targeted therapy, is therefore important for optimal treatment of the oxidative stress of these patients. We summarize the role of oxidative stress and the current and potential antioxidative therapeutics in β-thalassemia and describe some methodologies, mostly cellular, that might be helpful for application of a theranostics approach to therapy.
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Affiliation(s)
- Eitan Fibach
- Department of Hematology, Hadassah-Hebrew University Medical Center, Ein-Kerem, POB 12,000, 91120, Jerusalem, Israel.
| | - Mutaz Dana
- Department of Hematology, Hadassah-Hebrew University Medical Center, Ein-Kerem, POB 12,000, 91120, Jerusalem, Israel
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23
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Charlebois E, Fillebeen C, Pantopoulos K. Hepatocellular heme oxygenase 1 deficiency does not affect inflammatory hepcidin regulation in mice. PLoS One 2019; 14:e0219835. [PMID: 31295319 PMCID: PMC6623421 DOI: 10.1371/journal.pone.0219835] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2018] [Accepted: 07/02/2019] [Indexed: 01/05/2023] Open
Abstract
Hepcidin is an iron regulatory peptide hormone that is secreted from hepatocytes and inhibits iron efflux from tissues to plasma. Under inflammatory conditions, hepcidin is transcriptionally induced by IL-6/STAT3 signaling and promotes hypoferremia, an innate immune response to infection. If this pathway remains unresolved, chronic overexpression of hepcidin contributes to the anemia of inflammation, a common medical condition. Previous work showed that carbon monoxide (CO) releasing drugs (CORMs) can attenuate inflammatory induction of hepcidin. Because CO is physiologically generated during heme degradation by heme oxygenase 1 (HO-1), an IL-6-inducible enzyme with anti-inflammatory properties, we hypothesized that hepatocellular HO-1 may operate as a physiological feedback regulator of hepcidin that resolves inflammatory signaling. To address this, we generated and analyzed hepatocyte-specific HO-1 knockout (Hmox1Alb-Cre) mice. We show that these animals mount appropriate hepcidin-mediated hypoferremic response to LPS-induced inflammation, with kinetics similar to those of control Hmox1fl/fl mice. Likewise, primary hepatocytes from Hmox1Alb-Cre and Hmox1fl/fl mice exhibit similar degree and kinetics of hepcidin induction following IL-6 treatment. We conclude that hepatocellular HO-1 has no physiological function on hepcidin regulation by the inflammatory pathway.
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Affiliation(s)
- Edouard Charlebois
- Lady Davis Institute for Medical Research, Jewish General Hospital, and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Carine Fillebeen
- Lady Davis Institute for Medical Research, Jewish General Hospital, and Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Kostas Pantopoulos
- Lady Davis Institute for Medical Research, Jewish General Hospital, and Department of Medicine, McGill University, Montreal, Quebec, Canada
- * E-mail:
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El-Achkar GA, Mrad MF, Mouawad CA, Badran B, Jaffa AA, Motterlini R, Hamade E, Habib A. Heme oxygenase-1-Dependent anti-inflammatory effects of atorvastatin in zymosan-injected subcutaneous air pouch in mice. PLoS One 2019; 14:e0216405. [PMID: 31071151 PMCID: PMC6508873 DOI: 10.1371/journal.pone.0216405] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 04/19/2019] [Indexed: 01/15/2023] Open
Abstract
Statins exert pleiotropic and beneficial anti-inflammatory and antioxidant effects. We have previously reported that macrophages treated with statins increased the expression of heme oxygenase-1 (HO-1), an inducible anti-inflammatory and cytoprotective stress protein, responsible for the degradation of heme. In the present study, we investigated the effects of atorvastatin on inflammation in mice and analyzed its mechanism of action in vivo. Air pouches were established in 8 week-old female C57BL/6J mice. Atorvastatin (5 mg/kg, i.p.) and/or tin protoporphyrin IX (SnPPIX), a heme oxygenase inhibitor (12 mg/kg, i.p.), were administered for 10 days. Zymosan, a cell wall component of Saccharomyces cerevisiae, was injected in the air pouch to trigger inflammation. Cell number and levels of inflammatory markers were determined in exudates collected from the pouch 24 hours post zymosan injection by flow cytometry, ELISA and quantitative PCR. Analysis of the mice treated with atorvastatin alone displayed increased expression of HO-1, arginase-1, C-type lectin domain containing 7A, and mannose receptor C-type 1 in the cells of the exudate of the air pouch. Flow cytometry analysis revealed an increase in monocyte/macrophage cells expressing HO-1 and in leukocytes expressing MRC-1 in response to atorvastatin. Mice treated with atorvastatin showed a significant reduction in cell influx in response to zymosan, and in the expression of proinflammatory cytokines and chemokines such as interleukin-1α, monocyte chemoattractant protein-1 and prostaglandin E2. Co-treatment of mice with atorvastatin and tin protoporphyrin IX (SnPPIX), an inhibitor of heme oxygenase, reversed the inhibitory effect of statin on cell influx and proinflammatory markers, suggesting a protective role of HO-1. Flow cytometry analysis of air pouch cell contents revealed prevalence of neutrophils and to a lesser extent of monocytes/macrophages with no significant effect of atorvastatin treatment on the modification of their relative proportion. These findings identify HO-1 as a target for the therapeutic actions of atorvastatin and highlight its potential role as an in vivo anti-inflammatory agent.
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Affiliation(s)
- Ghewa A. El-Achkar
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
- INSERM U955, Equipe 12, University Paris-Est, Faculty of Medicine, Créteil, France
| | - May F. Mrad
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
- Nehme and Therese Tohme Multiple Sclerosis Center, American University of Beirut Medical Center, Beirut, Lebanon
| | - Charbel A. Mouawad
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Bassam Badran
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Beirut, Lebanon
| | - Ayad A. Jaffa
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
| | - Roberto Motterlini
- INSERM U955, Equipe 12, University Paris-Est, Faculty of Medicine, Créteil, France
| | - Eva Hamade
- Laboratory of Cancer Biology and Molecular Immunology, Faculty of Sciences I, Lebanese University, Hadath, Beirut, Lebanon
- * E-mail: (AH); (EH)
| | - Aida Habib
- Department of Biochemistry and Molecular Genetics, American University of Beirut, Beirut, Lebanon
- INSERM-U1149, CNRS-ERL8252, Centre de Recherche sur l’Inflammation, Sorbonne Paris Cité, Laboratoire d’Excellence Inflamex, Faculté de Médecine, Site Xavier Bichat, Université de Paris, Paris, France
- * E-mail: (AH); (EH)
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25
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Song H, Zhang S, Sun X, Liu J, Wu Y, Guo W, Wang F, Ou X, Cong M, Jin E, Li W, Liu S. Distinct Iron Deposition Profiles of Liver Zones in Various Models with Iron Homeostasis Disorders. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2018; 5:1800866. [PMID: 30479929 PMCID: PMC6247051 DOI: 10.1002/advs.201800866] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/19/2018] [Indexed: 06/09/2023]
Abstract
Determination of iron accumulation is crucial in diagnosing the occurrence and progression of many liver- and iron-related diseases. Thus far, little is known about the profiles of iron deposition in different liver zones, particularly under conditions with disordered iron homeostasis. Here, uneven iron distribution in livers of patients with hereditary hemochromatosis (HH) is uncovered, showing the region with the highest iron concentration near the entrance site of the portal vein and hepatic artery in contrast to the sites with the lowest iron concentration close to the distal edge. Distinct iron distribution profiles are also found throughout liver zones in wild-type mice and various mouse models with iron metabolism disorders, including hemochromatosis (Hfe-/- ), iron deficiency, and inflammation. Of note, similar findings observed in HH patients are further demonstrated in Hfe-/- mice. Moreover, the zones with greater iron accumulation appear to be more sensitive to iron changes, e.g., there is iron increase upon iron overload and iron loss in response to iron deficiency. Mechanistic investigation manifests that these differential iron changes in liver zones are subjected to the regulation by the hepcidin-ferroportin axis. Additionally, the data corroborate the reliability of magnetic resonance imaging (MRI) in recognizing the differential iron deposition profiles among liver zones.
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Affiliation(s)
- Haoyang Song
- Anhui Province Key Laboratory of Embryo Development and Reproductive RegulationAnhui Province Key Laboratory of Environmental Hormone and ReproductionFuyang Normal UniversityFuyang236037China
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085China
| | - Shuping Zhang
- Institute for Medical Engineering and ScienceMassachusetts Institute of TechnologyCambridgeMA02139USA
| | - Xia Sun
- Radiology DepartmentBeijing Friendship HospitalCapital Medical UniversityBeijing100050China
| | - Jing Liu
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085China
| | - Yakun Wu
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085China
- University of Chinese Academy of SciencesBeijing100049China
| | - Wenli Guo
- College of FisheriesHenan Normal UniversityXinxiang453007China
- QIMR Berghofer Medical Research InstituteBrisbane4029Australia
| | - Fudi Wang
- Department of NutritionNutrition Discovery Innovation CenterInstitute of Nutrition and Food SafetySchool of Public HealthSchool of MedicineZhejiang UniversityHangzhou310085China
| | - Xiaojuan Ou
- Liver Research CenterBeijing Friendship HospitalCapital Medical UniversityBeijing100050China
| | - Min Cong
- Liver Research CenterBeijing Friendship HospitalCapital Medical UniversityBeijing100050China
| | - Erhu Jin
- Radiology DepartmentBeijing Friendship HospitalCapital Medical UniversityBeijing100050China
| | - Wenyong Li
- Anhui Province Key Laboratory of Embryo Development and Reproductive RegulationAnhui Province Key Laboratory of Environmental Hormone and ReproductionFuyang Normal UniversityFuyang236037China
| | - Sijin Liu
- State Key Laboratory of Environmental Chemistry and EcotoxicologyResearch Center for Eco‐Environmental SciencesChinese Academy of SciencesBeijing100085China
- University of Chinese Academy of SciencesBeijing100049China
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26
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Abstract
PURPOSE OF REVIEW Iron overload cardiomyopathy (IOC) is an important predictor of prognosis in a significant number of patients with hereditary hemochromatosis and hematologic diseases. Its prevalence is increasing because of improved treatment strategies, which significantly improve life expectancy. We will review diagnosis, treatment, and recent findings in the field. RECENT FINDINGS The development of preclinical translational disease models during the last years have helped our understanding of specific disease pathophysiological pathways that might eventually change the outcomes of these patients. SUMMARY IOC is an overlooked disease because of the progressive silent disease pattern and the lack of physicians' expertise. It mainly affects patients with hemochromatosis and hematologic diseases and its prevalence is expected to increase with the improvement in life expectancy of hematologic disorders. Early diagnosis of IOC in patients at risk by means of biochemical parameters and cardiac imaging can lead to early treatment and improved prognosis. The mainstay of treatment of IOC is conventional heart failure treatment, combined with phlebotomies or iron chelation in the context of anemia. The development of preclinical models has provided a comprehensive look into specific pathophysiological pathways with potential treatment strategies that must be sustained by future randomized trials.
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Affiliation(s)
| | - Josep Comín-Colet
- Community Heart Failure Unit, IDIBELL, Heart Disease Institute, Hospital Universitari de Bellvitge, L'Hospitalet de Llobregat, Barcelona, Spain
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