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Chen S, Huang L, Liu B, Duan H, Li Z, Liu Y, Li H, Fu X, Lin J, Xu Y, Liu L, Wan D, Yin Y, Xie L. Dynamic changes in butyrate levels regulate satellite cell homeostasis by preventing spontaneous activation during aging. SCIENCE CHINA. LIFE SCIENCES 2024; 67:745-764. [PMID: 38157106 DOI: 10.1007/s11427-023-2400-3] [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: 02/14/2023] [Accepted: 06/15/2023] [Indexed: 01/03/2024]
Abstract
The gut microbiota plays a pivotal role in systemic metabolic processes and in particular functions, such as developing and preserving the skeletal muscle system. However, the interplay between gut microbiota/metabolites and the regulation of satellite cell (SC) homeostasis, particularly during aging, remains elusive. We propose that gut microbiota and its metabolites modulate SC physiology and homeostasis throughout skeletal muscle development, regeneration, and aging process. Our investigation reveals that microbial dysbiosis manipulated by either antibiotic treatment or fecal microbiota transplantation from aged to adult mice, leads to the activation of SCs or a significant reduction in the total number. Furthermore, employing multi-omics (e.g., RNA-seq, 16S rRNA gene sequencing, and metabolomics) and bioinformatic analysis, we demonstrate that the reduced butyrate levels, alongside the gut microbial dysbiosis, could be the primary factor contributing to the reduction in the number of SCs and subsequent impairments during skeletal muscle aging. Meanwhile, butyrate supplementation can mitigate the antibiotics-induced SC activation irrespective of gut microbiota, potentially by inhibiting the proliferation and differentiation of SCs/myoblasts. The butyrate effect is likely facilitated through the monocarboxylate transporter 1 (Mct1), a lactate transporter enriched on membranes of SCs and myoblasts. As a result, butyrate could serve as an alternative strategy to enhance SC homeostasis and function during skeletal muscle aging. Our findings shed light on the potential application of microbial metabolites in maintaining SC homeostasis and preventing skeletal muscle aging.
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Affiliation(s)
- Shujie Chen
- Department of Endocrinology and Metabolism, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- 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 Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - Liujing Huang
- Department of Endocrinology and Metabolism, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- 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
| | - Bingdong Liu
- Department of Endocrinology and Metabolism, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China
- 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
| | - Huimin Duan
- 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 Rehabilitation Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, 510000, China
| | - Ze Li
- 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
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Yifan Liu
- 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
- Institute of Aging Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 524023, China
| | - Hu Li
- Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
| | - Xiang Fu
- Bioland Laboratory, Guangzhou Regenerative Medicine and Health Guangdong Laboratory, Guangzhou, 510005, China
| | - Jingchao Lin
- Metabo-Profile Biotechnology (Shanghai) Co. Ltd., Shanghai, 201315, China
| | - Yinlan Xu
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China
| | - Li Liu
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China
| | - Dan Wan
- Institute of Aging Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 524023, 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.
| | - Yulong Yin
- Institute of Aging Research, Guangdong Provincial Key Laboratory of Medical Molecular Diagnostics, School of Medical Technology, Guangdong Medical University, Dongguan, 524023, 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.
| | - Liwei Xie
- Department of Endocrinology and Metabolism, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, China.
- 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.
- School of Public Health, Xinxiang Medical University, Xinxiang, 453003, China.
- Department of Infectious Diseases, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, China.
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2
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Galy B, Conrad M, Muckenthaler M. Mechanisms controlling cellular and systemic iron homeostasis. Nat Rev Mol Cell Biol 2024; 25:133-155. [PMID: 37783783 DOI: 10.1038/s41580-023-00648-1] [Citation(s) in RCA: 52] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/31/2023] [Indexed: 10/04/2023]
Abstract
In mammals, hundreds of proteins use iron in a multitude of cellular functions, including vital processes such as mitochondrial respiration, gene regulation and DNA synthesis or repair. Highly orchestrated regulatory systems control cellular and systemic iron fluxes ensuring sufficient iron delivery to target proteins is maintained, while limiting its potentially deleterious effects in iron-mediated oxidative cell damage and ferroptosis. In this Review, we discuss how cells acquire, traffick and export iron and how stored iron is mobilized for iron-sulfur cluster and haem biogenesis. Furthermore, we describe how these cellular processes are fine-tuned by the combination of various sensory and regulatory systems, such as the iron-regulatory protein (IRP)-iron-responsive element (IRE) network, the nuclear receptor co-activator 4 (NCOA4)-mediated ferritinophagy pathway, the prolyl hydroxylase domain (PHD)-hypoxia-inducible factor (HIF) axis or the nuclear factor erythroid 2-related factor 2 (NRF2) regulatory hub. We further describe how these pathways interact with systemic iron homeostasis control through the hepcidin-ferroportin axis to ensure appropriate iron fluxes. This knowledge is key for the identification of novel therapeutic opportunities to prevent diseases of cellular and/or systemic iron mismanagement.
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Affiliation(s)
- Bruno Galy
- German Cancer Research Center (DKFZ), Division of Virus-associated Carcinogenesis (F170), Heidelberg, Germany
| | - Marcus Conrad
- Helmholtz Zentrum München, Institute of Metabolism and Cell Death, Neuherberg, Germany
| | - Martina Muckenthaler
- Department of Paediatric Hematology, Oncology and Immunology, University of Heidelberg, Heidelberg, Germany.
- Molecular Medicine Partnership Unit, University of Heidelberg, Heidelberg, Germany.
- German Centre for Cardiovascular Research (DZHK), Partner site Heidelberg/Mannheim, Heidelberg, Germany.
- Translational Lung Research Center Heidelberg (TLRC), German Center for Lung Research (DZL), University of Heidelberg, Heidelberg, Germany.
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Moreno-Navarrete JM, Fernández-Real JM. Iron: The silent culprit in your adipose tissue. Obes Rev 2024; 25:e13647. [PMID: 37789591 DOI: 10.1111/obr.13647] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 07/27/2023] [Accepted: 09/09/2023] [Indexed: 10/05/2023]
Abstract
Iron plays a vital role in essential biological processes and requires precise regulation within the body. Dysregulation of iron homeostasis, characterized by increased serum ferritin levels and excessive accumulation of iron in the liver, adipose tissue, and skeletal muscle, is associated with obesity and insulin resistance. Notably, iron excess in adipose tissue promotes adipose tissue dysfunction. As optimal adipose tissue function is crucial for maintaining a healthy phenotype in obesity, a comprehensive understanding of iron homeostasis in adipose tissue is imperative for designing new therapeutic approaches to improve and prevent adipose tissue dysfunction. Here, we conducted a review of relevant studies, focusing on and providing valuable insights into the intricate interplay between iron and adipose tissue. It sheds light on the impact of iron on adipogenesis and the physiology of both white and brown adipose tissue. Furthermore, we highlight the critical role of key modulators, such as cytosolic aconitase, mitochondria, and macrophages, in maintaining iron homeostasis within adipose tissue.
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Affiliation(s)
- José María Moreno-Navarrete
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
| | - José Manuel Fernández-Real
- Department of Diabetes, Endocrinology and Nutrition, Institut d'Investigació Biomèdica de Girona (IdIBGi), Girona, Spain
- Centro de Investigación Biomédica en Red de Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III (ISCIII), Madrid, Spain
- Department of Medical Sciences, University of Girona, Girona, Spain
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Qiu J, Zhang Z, Hu Y, Guo Y, Liu C, Chen Y, Wang D, Su J, Wang S, Ni M, Xu S, Yu J, Hu T, Song G, Ma X, Gu X, Wang J, Xu L. Transferrin receptor levels and its rare variant are associated with human obesity. J Diabetes 2024; 16:e13467. [PMID: 37646182 PMCID: PMC10809288 DOI: 10.1111/1753-0407.13467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 08/06/2023] [Accepted: 08/15/2023] [Indexed: 09/01/2023] Open
Abstract
AIM Iron homeostasis is critical for functional respiratory chain complex of mitochondrial, thus potentially contributing to fat biology and energy homeostasis. Transferrin receptor (Tfrc) binds to transferrin for extracellular iron uptake and is recently reported to be involved in brown fat development and functionality. However, whether TFRC levels and variants are associated with human obesity is unknown. METHODS To investigate the association of TFRC levels and variants with human obesity, fat biopsies were obtained from surgery. Exon-sequencing and genetic assessments were conducted of a case-control study. For TFRC levels assessment in fat biopsy, 9 overweight and 12 lean subjects were involved. For genetic study, obese (n = 1271) and lean subjects (n = 1455) were involved. TFRC levels were compared in abdominal mesenteric fat of pheochromocytoma patients versus control subjects, and overweight versus lean subjects. For genetic study, whole-exome sequencing of obese and matched control subjects were conducted and analyzed. In addition, the possible disruption in protein stability of TFRC variant was assessed by structural and molecular analysis. RESULTS TFRC levels are increased in human browning adipose tissue and decreased in fat of overweight patients. Besides, TFRC levels are negatively correlated with body mass index and positively correlated with uncoupling protein 1 levels. Furthermore, a rare heterozygous missense variant p.I337V in TFRC shows a tendency to enrich in obese subjects. Structural and functional study reveals impaired protein stability of the TFRC variant compared to wild-type. CONCLUSIONS Reduced TFRC levels and its rare variant p.I337V with protein instability are associated with human obesity.
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Affiliation(s)
- Jin Qiu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Zhiyin Zhang
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic DiseasesRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Yepeng Hu
- Department of Endocrine and Metabolic DiseasesThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Yuhan Guo
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Caizhi Liu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Yanru Chen
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic DiseasesRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Dongmei Wang
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Junlei Su
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic DiseasesRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Sainan Wang
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Mengshan Ni
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic DiseasesRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Sainan Xu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Jian Yu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Tianhui Hu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Gaojie Song
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Xinran Ma
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
| | - Xuejiang Gu
- Department of Endocrine and Metabolic DiseasesThe First Affiliated Hospital of Wenzhou Medical UniversityWenzhouChina
| | - Jiqiu Wang
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic DiseasesRuijin Hospital, Shanghai Jiao Tong University School of MedicineShanghaiChina
| | - Lingyan Xu
- Shanghai Key Laboratory of Regulatory BiologyInstitute of Biomedical Sciences and School of Life Sciences, East China Normal UniversityShanghaiChina
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Meng H, Yu Y, Xie E, Wu Q, Yin X, Zhao B, Min J, Wang F. Hepatic HDAC3 Regulates Systemic Iron Homeostasis and Ferroptosis via the Hippo Signaling Pathway. RESEARCH (WASHINGTON, D.C.) 2023; 6:0281. [PMID: 38034086 PMCID: PMC10687581 DOI: 10.34133/research.0281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 11/13/2023] [Indexed: 12/02/2023]
Abstract
Histone deacetylases (HDACs) are epigenetic regulators that play an important role in determining cell fate and maintaining cellular homeostasis. However, whether and how HDACs regulate iron metabolism and ferroptosis (an iron-dependent form of cell death) remain unclear. Here, the putative role of hepatic HDACs in regulating iron metabolism and ferroptosis was investigated using genetic mouse models. Mice lacking Hdac3 expression in the liver (Hdac3-LKO mice) have significantly reduced hepatic Hamp mRNA (encoding the peptide hormone hepcidin) and altered iron homeostasis. Transcription profiling of Hdac3-LKO mice suggests that the Hippo signaling pathway may be downstream of Hdac3. Moreover, using a Hippo pathway inhibitor and overexpressing the transcriptional regulator Yap (Yes-associated protein) significantly reduced Hamp mRNA levels. Using a promoter reporter assay, we then identified 2 Yap-binding repressor sites within the human HAMP promoter region. We also found that inhibiting Hdac3 led to increased translocation of Yap to the nucleus, suggesting activation of Yap. Notably, knock-in mice expressing a constitutively active form of Yap (Yap K342M) phenocopied the altered hepcidin levels observed in Hdac3-LKO mice. Mechanistically, we show that iron-overload-induced ferroptosis underlies the liver injury that develops in Hdac3-LKO mice, and knocking down Yap expression in Hdac3-LKO mice reduces both iron-overload- and ferroptosis-induced liver injury. These results provide compelling evidence supporting the notion that HDAC3 regulates iron homeostasis via the Hippo/Yap pathway and may serve as a target for reducing ferroptosis in iron-overload-related diseases.
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Affiliation(s)
- Hongen Meng
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
| | - Yingying Yu
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
| | - Enjun Xie
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
| | - Qian Wu
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
| | - Xiangju Yin
- Institute of Emergency Management,
Henan Polytechnic University, Jiaozuo, China
| | - Bin Zhao
- MOE Key Laboratory of Biosystems Homeostasis and Protection, Zhejiang Provincial Key Laboratory for Cancer Molecular Cell Biology, and Innovation Center for Cell Signaling Network, Life Sciences Institute,
Zhejiang University, Hangzhou 310058, China
| | - Junxia Min
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
| | - Fudi Wang
- The Second Affiliated Hospital, The First Affiliated Hospital, Institute of Translational Medicine, School of Public Health,
Zhejiang University School of Medicine, Hangzhou, China
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6
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Zhao Y, Xiong W, Li C, Zhao R, Lu H, Song S, Zhou Y, Hu Y, Shi B, Ge J. Hypoxia-induced signaling in the cardiovascular system: pathogenesis and therapeutic targets. Signal Transduct Target Ther 2023; 8:431. [PMID: 37981648 PMCID: PMC10658171 DOI: 10.1038/s41392-023-01652-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 09/10/2023] [Accepted: 09/13/2023] [Indexed: 11/21/2023] Open
Abstract
Hypoxia, characterized by reduced oxygen concentration, is a significant stressor that affects the survival of aerobic species and plays a prominent role in cardiovascular diseases. From the research history and milestone events related to hypoxia in cardiovascular development and diseases, The "hypoxia-inducible factors (HIFs) switch" can be observed from both temporal and spatial perspectives, encompassing the occurrence and progression of hypoxia (gradual decline in oxygen concentration), the acute and chronic manifestations of hypoxia, and the geographical characteristics of hypoxia (natural selection at high altitudes). Furthermore, hypoxia signaling pathways are associated with natural rhythms, such as diurnal and hibernation processes. In addition to innate factors and natural selection, it has been found that epigenetics, as a postnatal factor, profoundly influences the hypoxic response and progression within the cardiovascular system. Within this intricate process, interactions between different tissues and organs within the cardiovascular system and other systems in the context of hypoxia signaling pathways have been established. Thus, it is the time to summarize and to construct a multi-level regulatory framework of hypoxia signaling and mechanisms in cardiovascular diseases for developing more therapeutic targets and make reasonable advancements in clinical research, including FDA-approved drugs and ongoing clinical trials, to guide future clinical practice in the field of hypoxia signaling in cardiovascular diseases.
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Affiliation(s)
- Yongchao Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
| | - Weidong Xiong
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China
| | - Chaofu Li
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
| | - Ranzun Zhao
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China
| | - Hao Lu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Shuai Song
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - You Zhou
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China
| | - Yiqing Hu
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
| | - Bei Shi
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China.
| | - Junbo Ge
- Department of Cardiology, Affiliated Hospital of Zunyi Medical University, Zunyi, 563000, China.
- Department of Cardiology, Zhongshan Hospital, Fudan University, Shanghai Institute of Cardiovascular Diseases, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, National Health Commission, Shanghai, 200032, China.
- Key Laboratory of Viral Heart Diseases, Chinese Academy of Medical Sciences, Shanghai, 200032, China.
- National Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Shanghai Clinical Research Center for Interventional Medicine, Shanghai, 200032, China.
- Institutes of Biomedical Sciences, Fudan University, Shanghai, 200032, China.
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Yu J, Qiu J, Zhang Z, Cui X, Guo W, Sheng M, Gao M, Wang D, Xu L, Ma X. Redox Biology in Adipose Tissue Physiology and Obesity. Adv Biol (Weinh) 2023; 7:e2200234. [PMID: 36658733 DOI: 10.1002/adbi.202200234] [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: 08/26/2022] [Revised: 10/24/2022] [Indexed: 01/21/2023]
Abstract
Reactive oxygen species (ROS), a by-product of mitochondrial oxidative phosphorylation and cellular metabolism, is vital for cellular survival, proliferation, damage, and senescence. In recent years, studies have shown that ROS levels and redox status in adipose tissue are strongly associated with obesity and metabolic diseases. Although it was previously considered that excessive production of ROS and impairment of antioxidant capability leads to oxidative stress and potentially contributes to increased adiposity, it has become increasingly evident that an adequate amount of ROS is vital for adipocyte differentiation and thermogenesis. In this review, by providing a systematic overview of the recent understanding of the key factors of redox systems, endogenous mechanisms for redox homeostasis, advanced techniques for dynamic redox monitoring, as well as exogenous stimuli for redox production in adipose tissues and obesity, the importance of redox biology in metabolic health is emphasized.
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Affiliation(s)
- Jian Yu
- Department of Endocrinology and Metabolism, Fengxian Central Hospital Affiliated to Southern Medical University, Shanghai, 201499, P. R. China
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Jin Qiu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Zhe Zhang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Xiangdi Cui
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Wenxiu Guo
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Maozheng Sheng
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Mingyuan Gao
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Dongmei Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Lingyan Xu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
| | - Xinran Ma
- Department of Endocrinology and Metabolism, Fengxian Central Hospital Affiliated to Southern Medical University, Shanghai, 201499, P. R. China
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, P. R. China
- Chongqing Key Laboratory of Precision Optics, Chongqing Institute of East China Normal University, Chongqing, 401120, P. R. China
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8
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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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9
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Yang H, Yao X, Liu Y, Shen X, Li M, Luo Z. Ferroptosis Nanomedicine: Clinical Challenges and Opportunities for Modulating Tumor Metabolic and Immunological Landscape. ACS NANO 2023; 17:15328-15353. [PMID: 37573530 DOI: 10.1021/acsnano.3c04632] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Ferroptosis, a type of regulated cell death driven by iron-dependent phospholipid peroxidation, has captured much attention in the field of nanomedicine since it was coined in 2012. Compared with other regulated cell death modes such as apoptosis and pyroptosis, ferroptosis has many distinct features in the molecular mechanisms and cellular morphology, representing a promising strategy for treating cancers that are resistant to conventional therapeutic modalities. Moreover, recent insights collectively reveal that ferroptosis is tightly connected to the maintenance of the tumor immune microenvironment (TIME), suggesting the potential application of ferroptosis therapies for evoking robust antitumor immunity. From a biochemical perspective, ferroptosis is intricately regulated by multiple cellular metabolic pathways, including iron metabolism, lipid metabolism, redox metabolism, etc., highlighting the importance to elucidate the relationship between tumor metabolism and ferroptosis for developing antitumor therapies. In this review, we provide a comprehensive discussion on the current understanding of ferroptosis-inducing mechanisms and thoroughly discuss the relationship between ferroptosis and various metabolic traits of tumors, which offer promising opportunities for direct tumor inhibition through a nanointegrated approach. Extending from the complex impact of ferroptosis on TIME, we also discussed those important considerations in the development of ferroptosis-based immunotherapy, highlighting the challenges and strategies to enhance the ferroptosis-enabled immunostimulatory effects while avoiding potential side effects. We envision that the insights in this study may facilitate the development and translation of ferroptosis-based nanomedicines for tumor treatment.
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Affiliation(s)
- Huocheng Yang
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
| | - Xuemei Yao
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
| | - Yingqi Liu
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
| | - Xinkun Shen
- Ruian People's Hospital, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou 325016, China
| | - Menghuan Li
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
| | - Zhong Luo
- School of Life Science, Chongqing University, Chongqing 400044, P. R. China
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10
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Deschemin JC, Ransy C, Bouillaud F, Chung S, Galy B, Peyssonnaux C, Vaulont S. Hepcidin deficiency in mice impairs white adipose tissue browning possibly due to a defect in de novo adipogenesis. Sci Rep 2023; 13:12794. [PMID: 37550331 PMCID: PMC10406828 DOI: 10.1038/s41598-023-39305-0] [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: 02/16/2023] [Accepted: 07/23/2023] [Indexed: 08/09/2023] Open
Abstract
The role of iron in the two major sites of adaptive thermogenesis, namely the beige inguinal (iWAT) and brown adipose tissues (BAT) has not been fully understood yet. Body iron levels and distribution is controlled by the iron regulatory peptide hepcidin. Here, we explored iron homeostasis and thermogenic activity in brown and beige fat in wild-type and iron loaded Hepcidin KO mice. Hepcidin-deficient mice displayed iron overload in both iWAT and BAT, and preferential accumulation of ferritin in stromal cells compared to mature adipocytes. In contrast to BAT, the iWAT of Hepcidin KO animals featured with defective thermogenesis evidenced by an altered beige signature, including reduced UCP1 levels and decreased mitochondrial respiration. This thermogenic modification appeared cell autonomous and persisted after a 48 h-cold challenge, a potent trigger of thermogenesis, suggesting compromised de novo adipogenesis. Given that WAT browning occurs in both mice and humans, our results provide physiological results to interrogate the thermogenic capacity of patients with iron overload disorders.
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Affiliation(s)
- Jean-Christophe Deschemin
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Céline Ransy
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
| | - Frédéric Bouillaud
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
| | - Soonkyu Chung
- Department of Nutrition, University of Massachusetts-Amherst, Amherst, MA, 01003, USA
| | - Bruno Galy
- German Cancer Research Center, "Division of Virus-Associated Carcinogenesis", Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Carole Peyssonnaux
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Sophie Vaulont
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France.
- Laboratory of Excellence GR-Ex, Paris, France.
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11
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Jin L, Han S, Lv X, Li X, Zhang Z, Kuang H, Chen Z, Lv CA, Peng W, Yang Z, Yang M, Mi L, Liu T, Ma S, Qiu X, Wang Q, Pan X, Shan P, Feng Y, Li J, Wang F, Xie L, Zhao X, Fu JF, Lin JD, Meng ZX. The muscle-enriched myokine Musclin impairs beige fat thermogenesis and systemic energy homeostasis via Tfr1/PKA signaling in male mice. Nat Commun 2023; 14:4257. [PMID: 37468484 PMCID: PMC10356794 DOI: 10.1038/s41467-023-39710-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 06/27/2023] [Indexed: 07/21/2023] Open
Abstract
Skeletal muscle and thermogenic adipose tissue are both critical for the maintenance of body temperature in mammals. However, whether these two tissues are interconnected to modulate thermogenesis and metabolic homeostasis in response to thermal stress remains inconclusive. Here, we report that human and mouse obesity is associated with elevated Musclin levels in both muscle and circulation. Intriguingly, muscle expression of Musclin is markedly increased or decreased when the male mice are housed in thermoneutral or chronic cool conditions, respectively. Beige fat is then identified as the primary site of Musclin action. Muscle-transgenic or AAV-mediated overexpression of Musclin attenuates beige fat thermogenesis, thereby exacerbating diet-induced obesity and metabolic disorders in male mice. Conversely, Musclin inactivation by muscle-specific ablation or neutralizing antibody treatment promotes beige fat thermogenesis and improves metabolic homeostasis in male mice. Mechanistically, Musclin binds to transferrin receptor 1 (Tfr1) and antagonizes Tfr1-mediated cAMP/PKA-dependent thermogenic induction in beige adipocytes. This work defines the temperature-sensitive myokine Musclin as a negative regulator of adipose thermogenesis that exacerbates the deterioration of metabolic health in obese male mice and thus provides a framework for the therapeutic targeting of this endocrine pathway.
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Affiliation(s)
- Lu Jin
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
| | - Shuang Han
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Department of Geriatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Xue Lv
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Xiaofei Li
- Department of Sport Medicine, The Lianyungang First People's Hospital, Affiliated Hospital of Xuzhou Medical University, Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, China
| | - Ziyin Zhang
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Henry Kuang
- Life Sciences Institute and Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Zhimin Chen
- Life Sciences Institute and Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Cheng-An Lv
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Wei Peng
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhuoying Yang
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Miqi Yang
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Lin Mi
- Life Sciences Institute and Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Tongyu Liu
- Life Sciences Institute and Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Shengshan Ma
- Department of Sport Medicine, The Lianyungang First People's Hospital, Affiliated Hospital of Xuzhou Medical University, Affiliated Hospital of Kangda College of Nanjing Medical University, Lianyungang, China
| | - Xinyuan Qiu
- Department of Biology and Chemistry, College of Science, National University of Defense Technology, Changsha, China
| | - Qintao Wang
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China
| | - Xiaowen Pan
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Pengfei Shan
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu Feng
- Department of Endocrinology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Jin Li
- The Second Affiliated Hospital, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Fudi Wang
- The Second Affiliated Hospital, School of Public Health, Zhejiang University School of Medicine, Hangzhou, China
| | - Liwei Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern China, Institute of Microbiology, Guangdong Academy of Sciences, Guangzhou, China
| | - Xuyun Zhao
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Key Laboratory of Cell Differentiation and Apoptosis of National Ministry of Education, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jun-Fen Fu
- Department of Endocrinology, Children's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
| | - Jiandie D Lin
- Life Sciences Institute and Department of Cell and Developmental Biology, University of Michigan, Ann Arbor, USA
| | - Zhuo-Xian Meng
- Department of Pathology and Pathophysiology and Department of Cardiology of the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Key Laboratory of Disease Proteomics of Zhejiang Province, Zhejiang University School of Medicine, Hangzhou, China.
- Department of Geriatrics, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Chronic Disease Research Institute, Zhejiang University School of Public Health, Hangzhou, China.
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12
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Liu H, Li X, Li P, Hai R, Li J, Fan Q, Wang X, Chen Y, Cao X, Zhang X, Gao R, Wang K, Du C. Glutamatergic melanocortin-4 receptor neurons regulate body weight. FASEB J 2023; 37:e22920. [PMID: 37078546 DOI: 10.1096/fj.202201786r] [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: 11/01/2022] [Revised: 02/22/2023] [Accepted: 03/30/2023] [Indexed: 04/21/2023]
Abstract
The locus coeruleus (LC), enriched in vesicular glutamate transporter 2 (VGlut2) neurons, is a potential homeostasis-regulating hub. However, the identity of melanocortin-4 receptor (MC4R) neurons in the paraventricular nucleus (PVN) of the hypothalamus, PVNVGlut2::MC4R and LCVGlut2::MC4R regulation of body weight, and axonal projections of LCVGlut2 neurons remain unclear. Conditional knockout of MC4R in chimeric mice was used to confirm the effects of VGlut2. Interscapular brown adipose tissue was injected with pseudorabies virus to study the central nervous system projections. We mapped the LCVGlut2 circuitry. Based on the Cre-LoxP recombination system, specific knockdown of MC4R in VGlut2 neurons resulted in weight gain in chimeric mice. Adeno-associated virus-mediated knockdown of MC4R expression in the PVN and LC had potential superimposed effects on weight gain, demonstrating the importance of VGlut2 neurons. Unlike these wide-ranging efferent projections, the PVN, hypothalamic arcuate nucleus, supraoptic nucleus of the lateral olfactory tegmental nuclei, and nucleus tractus solitarius send excitatory projections to LCVGlut2 neurons. The PVN → LC glutamatergic MC4R long-term neural circuit positively affected weight management and could help treat obesity.
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Affiliation(s)
- Haodong Liu
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Xiaojing Li
- College of Horticulture and Plant Protection, Inner Mongolia Agricultural University, Hohhot, China
| | - Penghui Li
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Rihan Hai
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
- Vocational and Technical College, Inner Mongolia Agricultural University, Baotou, China
| | - Jiacheng Li
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Qi Fan
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Xing Wang
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Yujie Chen
- Vocational and Technical College, Inner Mongolia Agricultural University, Baotou, China
| | - Xiaojuan Cao
- Vocational and Technical College, Inner Mongolia Agricultural University, Baotou, China
| | - Xiaoyu Zhang
- Vocational and Technical College, Inner Mongolia Agricultural University, Baotou, China
| | - Ruifeng Gao
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
| | - Kun Wang
- Institute of Cereal and Oil Crops, Hebei Academy of Agricultural and Forestry Sciences, Shijiazhuang, China
- Key Laboratory of Crop Cultivation Physiology and Green Production in Hebei Province, Shijiazhuang, China
| | - Chenguang Du
- Inner Mongolia Key Laboratory of Basic Veterinary Science, Hohhot, China
- College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot, China
- Vocational and Technical College, Inner Mongolia Agricultural University, Baotou, China
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13
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Valenti L, Corradini E, Adams LA, Aigner E, Alqahtani S, Arrese M, Bardou-Jacquet E, Bugianesi E, Fernandez-Real JM, Girelli D, Hagström H, Henninger B, Kowdley K, Ligabue G, McClain D, Lainé F, Miyanishi K, Muckenthaler MU, Pagani A, Pedrotti P, Pietrangelo A, Prati D, Ryan JD, Silvestri L, Spearman CW, Stål P, Tsochatzis EA, Vinchi F, Zheng MH, Zoller H. Consensus Statement on the definition and classification of metabolic hyperferritinaemia. Nat Rev Endocrinol 2023; 19:299-310. [PMID: 36805052 PMCID: PMC9936492 DOI: 10.1038/s41574-023-00807-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 01/19/2023] [Indexed: 02/19/2023]
Abstract
Hyperferritinaemia is a common laboratory finding that is often associated with metabolic dysfunction and fatty liver. Metabolic hyperferritinaemia reflects alterations in iron metabolism that facilitate iron accumulation in the body and is associated with an increased risk of cardiometabolic and liver diseases. Genetic variants that modulate iron homeostasis and tissue levels of iron are the main determinants of serum levels of ferritin in individuals with metabolic dysfunction, raising the hypothesis that iron accumulation might be implicated in the pathogenesis of insulin resistance and the related organ damage. However, validated criteria for the non-invasive diagnosis of metabolic hyperferritinaemia and the staging of iron overload are still lacking, and there is no clear evidence of a benefit for iron depletion therapy. Here, we provide an overview of the literature on the relationship between hyperferritinaemia and iron accumulation in individuals with metabolic dysfunction, and on the associated clinical outcomes. We propose an updated definition and a provisional staging system for metabolic hyperferritinaemia, which has been agreed on by a multidisciplinary global panel of expert researchers. The goal is to foster studies into the epidemiology, genetics, pathophysiology, clinical relevance and treatment of metabolic hyperferritinaemia, for which we provide suggestions on the main unmet needs, optimal design and clinically relevant outcomes.
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Affiliation(s)
- Luca Valenti
- Department of Pathophysiology and Transplantation, Università degli Studi di Milano, Milan, Italy.
- Biological Resource Center and Precision Medicine Lab, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milano, Milan, Italy.
- Department of Transfusion Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milano, Milan, Italy.
| | - Elena Corradini
- Department of Medical and Surgical Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Italy.
- Internal Medicine and Centre for Hemochromatosis and Hereditary Liver Diseases, Azienda Ospedaliero-Universitaria di Modena-Policlinico, Modena, Italy.
| | - Leon A Adams
- Medical School, University of Western Australia, Perth, Australia
| | - Elmar Aigner
- First Department of Medicine, University Clinic Salzburg, Paracelsus Medical University Salzburg, Salzburg, Austria
| | - Saleh Alqahtani
- Royal Clinics and Gastroenterology and Hepatology, King Faisal Specialist Hospital & Research Centre, Riyadh, Kingdom of Saudi Arabia
- Division of Gastroenterology and Hepatology, Johns Hopkins University, Baltimore, MD, USA
| | - Marco Arrese
- Department of Gastroenterology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Edouard Bardou-Jacquet
- University of Rennes, UMR1241, CHU Rennes, National Reference Center for Hemochromatosis and iron metabolism disorder, INSERM CIC1414, Rennes, France
| | - Elisabetta Bugianesi
- Department of Medical Sciences, Division of Gastroenterology, University of Turin, Turin, Italy
| | - Jose-Manuel Fernandez-Real
- Department of Diabetes, Endocrinology and Nutrition, Dr Josep Trueta University Hospital, Girona, Spain
- Department of Medical Sciences, Faculty of Medicine, Girona University, Girona, Spain
- Nutrition, Eumetabolism and Health Group, Girona Biomedical Research Institute (IdibGi), Girona, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Domenico Girelli
- Section of Internal Medicine, Department of Medicine, University of Verona, Policlinico Giambattista Rossi, Verona, Italy
| | - Hannes Hagström
- Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Benjamin Henninger
- Department of Radiology, Medical University of Innsbruck, Innsbruck, Austria
| | - Kris Kowdley
- Liver Institute Northwest, Seattle, WA, USA
- Elson S. Floyd College of Medicine, Washington State University, Seattle, WA, USA
| | - Guido Ligabue
- Department of Medical and Surgical Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Italy
- Division of Radiology, Ospedale di Sassuolo S.p.A, Sassuolo, Modena, Italy
| | - Donald McClain
- Wake Forest School of Medicine, Winston Salem, NC, USA
- Department of Veterans Affairs, Salisbury, NC, USA
| | - Fabrice Lainé
- INSERM CIC1414, Liver Unit, CHU Rennes, Rennes, France
| | - Koji Miyanishi
- Department of Medical Oncology, Sapporo Medical University School of Medicine, Sapporo, Japan
| | - Martina U Muckenthaler
- Department of Paediatric Hematology, Oncology and Immunology, University of Heidelberg, Heidelberg, Germany
- Center for Molecular Translational Iron Research, Molecular Medicine Partnership Unit, European Molecular Biology Laboratory, Heidelberg, Germany
- German Centre for Cardiovascular Research, Partner Site Heidelberg, Heidelberg, Germany
| | - Alessia Pagani
- Regulation of Iron Metabolism Unit, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Patrizia Pedrotti
- Laboratorio di RM Cardiaca Cardiologia 4, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Antonello Pietrangelo
- Department of Medical and Surgical Sciences, Università degli Studi di Modena e Reggio Emilia, Modena, Italy
- Internal Medicine and Centre for Hemochromatosis and Hereditary Liver Diseases, Azienda Ospedaliero-Universitaria di Modena-Policlinico, Modena, Italy
| | - Daniele Prati
- Department of Transfusion Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Milano, Milan, Italy
| | - John D Ryan
- Hepatology Unit, Beaumont Hospital, RCSI University of Medicine and Health Sciences, Dublin, Ireland
| | - Laura Silvestri
- Regulation of Iron Metabolism Unit, Division of Genetics and Cell Biology, IRCCS Ospedale San Raffaele, Milan, Italy
| | - C Wendy Spearman
- Division of Hepatology, Department of Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - Per Stål
- Division of Hepatology, Department of Upper GI Diseases, Karolinska University Hospital, Stockholm, Sweden
| | - Emmanuel A Tsochatzis
- UCL Institute for Liver and Digestive Health, Royal Free Hospital and UCL, London, UK
| | - Francesca Vinchi
- Iron Research Laboratory, Lindsley F.Kimball Research Institute, New York Blood Center, New York, NY, USA
- Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Ming-Hua Zheng
- NAFLD Research Center, Department of Hepatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
- Key Laboratory of Diagnosis and Treatment for the Development of Chronic Liver Disease in Zhejiang Province, Wenzhou, China
| | - Heinz Zoller
- Department of Medicine I, Medical University of Innsbruck, Innsbruck, Austria
- Doppler Laboratory on Iron and Phosphate Biology, Innsbruck, Austria
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14
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Sun Y, Zhang J, Hong J, Zhang Z, Lu P, Gao A, Ni M, Zhang Z, Yang H, Shen J, Lu J, Xue W, Lv Q, Bi Y, Zeng YA, Gu W, Ning G, Wang W, Liu R, Wang J. Human RSPO1 Mutation Represses Beige Adipocyte Thermogenesis and Contributes to Diet-Induced Adiposity. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023; 10:e2207152. [PMID: 36755192 PMCID: PMC10131814 DOI: 10.1002/advs.202207152] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 01/15/2023] [Indexed: 06/18/2023]
Abstract
Recent genetic evidence has linked WNT downstream mutations to fat distribution. However, the roles of WNTs in human obesity remain unclear. Here, the authors screen all Wnt-related paracrine factors in 1994 obese cases and 2161 controls using whole-exome sequencing (WES) and identify that 12 obese patients harbor the same mutations in RSPO1 (p.R219W/Q) predisposing to human obesity. RSPO1 is predominantly expressed in visceral fat, primarily in the fibroblast cluster, and is increased with adiposity. Mice overexpressing human RSPO1 in adipose tissues develop obesity under a high-fat diet (HFD) due to reduced brown/beige fat thermogenesis. In contrast, Rspo1 ablation resists HFD-induced adiposity by increasing thermogenesis. Mechanistically, RSPO1 overexpression or administration significantly inhibits adipocyte mitochondrial respiration and thermogenesis via LGR4-Wnt/β-catenin signaling pathway. Importantly, humanized knockin mice carrying the hotspot mutation (p.R219W) display suppressed thermogenesis and recapitulate the adiposity feature of obese carriers. The mutation disrupts RSPO1's electrostatic interaction with the extracellular matrix, leading to excessive RSPO1 release that activates LGR4-Wnt/β-catenin signaling and attenuates thermogenic capacity in differentiated beige adipocytes. Therefore, these findings identify that gain-of-function mutations and excessive expression of RSPO1, acting as a paracrine Wnt activator, suppress fat thermogenesis and contribute to obesity in humans.
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Affiliation(s)
- Yingkai Sun
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Juan Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Jie Hong
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Zhongyun Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Peng Lu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Aibo Gao
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Mengshan Ni
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Zhiyin Zhang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Huanjie Yang
- BGI GenomicsBGI‐ShenzhenShenzhen860755P. R. China
| | - Juan Shen
- BGI GenomicsBGI‐ShenzhenShenzhen860755P. R. China
| | - Jieli Lu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Wenzhi Xue
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Qianqian Lv
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Yufang Bi
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Yi Arial Zeng
- State Key Laboratory of Cell BiologyCAS Center for Excellence in Molecular Cell ScienceInstitute of Biochemistry and Cell BiologyChinese Academy of SciencesUniversity of Chinese Academy of SciencesShanghai200031P. R. China
| | - Weiqiong Gu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Guang Ning
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Weiqing Wang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Ruixin Liu
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
| | - Jiqiu Wang
- Department of Endocrine and Metabolic DiseasesShanghai Institute of Endocrine and Metabolic DiseasesRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025P. R. China
- Shanghai National Clinical Research Center for Metabolic DiseasesKey Laboratory for Endocrine and Metabolic Diseases of the National Health Commission of the PR ChinaShanghai National Center for Translational MedicineShanghai200025P. R. China
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15
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Sheikh N, Shakeel S, Akhtar T, Khawar MB. Inimical impact of high-fat diet on expression of heme oxygenase-1, trace metals content, and associated intestinal histopathology. Toxicol Res (Camb) 2023; 12:26-32. [PMID: 36866220 PMCID: PMC9972815 DOI: 10.1093/toxres/tfac078] [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: 08/15/2022] [Revised: 09/22/2022] [Accepted: 10/13/2022] [Indexed: 12/23/2022] Open
Abstract
A high-fat diet (HFD) is one of the most prominent causative factors for obesity and metabolic inflammation. The effects of HFD overconsumption on intestinal histology, expression of haem oxygenase-1 (HO-1), and transferrin receptor-2 (TFR2) remain elusive. The present study was conducted to analyze the effect of HFD on these parameters. To develop the HFD-induced obese model, rat colonies were divided into 3 groups; the control group was reared on normal rat chow, whereas groups I and II were given HFD for 16 weeks. Hematoxylin and eosin (H & E) staining revealed marked epithelial changes, inflammatory cell infiltrates, and destruction of mucosal architecture in both experimental groups as compared to the control group. Sudan Black B staining showed a high triglyceride deposition in the intestinal mucosa of animals fed on HFD. Atomic absorption spectroscopy revealed a decrease in tissue copper (Cu) and selenium (Se) concentration in both HFD experimental groups. Whereas the cobalt (Co) and manganese (Mn) levels were comparable to controls. The mRNA expression levels of HO-1 and TFR2 were found to be significantly upregulated in HFD groups compared to the control group. Hence, HFD consumption leads to histopathological changes and altered gene expression in the rodent intestine. So, one should remove HFD from daily meals to avoid related metabolic complications.
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Affiliation(s)
- Nadeem Sheikh
- Cell and Molecular Biology Lab, Institute of Zoology, University of the Punjab, Q-A Campus, Lahore 54590, Pakistan
| | - Shakira Shakeel
- Cell and Molecular Biology Lab, Institute of Zoology, University of the Punjab, Q-A Campus, Lahore 54590, Pakistan
| | - Tasleem Akhtar
- Department of Pharmacology, University of Health Sciences Lahore, 54600, Pakistan
| | - Muhammad Babar Khawar
- Applied Molecular Biology and Biomedicine Lab, Department of Zoology, University of Narowal, Narowal 51600, Pakistan
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16
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Duan G, Li J, Duan Y, Zheng C, Guo Q, Li F, Zheng J, Yu J, Zhang P, Wan M, Long C. Mitochondrial Iron Metabolism: The Crucial Actors in Diseases. Molecules 2022; 28:29. [PMID: 36615225 PMCID: PMC9822237 DOI: 10.3390/molecules28010029] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/12/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022] Open
Abstract
Iron is a trace element necessary for cell growth, development, and cellular homeostasis, but insufficient or excessive level of iron is toxic. Intracellularly, sufficient amounts of iron are required for mitochondria (the center of iron utilization) to maintain their normal physiologic function. Iron deficiency impairs mitochondrial metabolism and respiratory activity, while mitochondrial iron overload promotes ROS production during mitochondrial electron transport, thus promoting potential disease development. This review provides an overview of iron homeostasis, mitochondrial iron metabolism, and how mitochondrial iron imbalances-induced mitochondrial dysfunction contribute to diseases.
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Affiliation(s)
- Geyan Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianjun Li
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yehui Duan
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Changbing Zheng
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Qiuping Guo
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fengna Li
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Zheng
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiayi Yu
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Peiwen Zhang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Mengliao Wan
- College of Animal Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Cimin Long
- CAS Key Laboratory of Agro-Ecological Processes in Subtropical Region, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Advanced Agricultural Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
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17
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Christen L, Broghammer H, Rapöhn I, Möhlis K, Strehlau C, Ribas‐Latre A, Gebhardt C, Roth L, Krause K, Landgraf K, Körner A, Rohde‐Zimmermann K, Hoffmann A, Klöting N, Ghosh A, Sun W, Dong H, Wolfrum C, Rassaf T, Hendgen‐Cotta UB, Stumvoll M, Blüher M, Heiker JT, Weiner J. Myoglobin-mediated lipid shuttling increases adrenergic activation of brown and white adipocyte metabolism and is as a marker of thermogenic adipocytes in humans. Clin Transl Med 2022; 12:e1108. [PMID: 36480426 PMCID: PMC9731393 DOI: 10.1002/ctm2.1108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 10/23/2022] [Accepted: 10/25/2022] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Recruitment and activation of brown adipose tissue (BAT) results in increased energy expenditure (EE) via thermogenesis and represents an intriguing therapeutic approach to combat obesity and treat associated diseases. Thermogenesis requires an increased and efficient supply of energy substrates and oxygen to the BAT. The hemoprotein myoglobin (MB) is primarily expressed in heart and skeletal muscle fibres, where it facilitates oxygen storage and flux to the mitochondria during exercise. In the last years, further contributions of MB have been assigned to the scavenging of reactive oxygen species (ROS), the regulation of cellular nitric oxide (NO) levels and also lipid binding. There is a substantial expression of MB in BAT, which is induced during brown adipocyte differentiation and BAT activation. This suggests MB as a previously unrecognized player in BAT contributing to thermogenesis. METHODS AND RESULTS This study analyzed the consequences of MB expression in BAT on mitochondrial function and thermogenesis in vitro and in vivo. Using MB overexpressing, knockdown or knockout adipocytes, we show that expression levels of MB control brown adipocyte mitochondrial respiratory capacity and acute response to adrenergic stimulation, signalling and lipolysis. Overexpression in white adipocytes also increases their metabolic activity. Mutation of lipid interacting residues in MB abolished these beneficial effects of MB. In vivo, whole-body MB knockout resulted in impaired thermoregulation and cold- as well as drug-induced BAT activation in mice. In humans, MB is differentially expressed in subcutaneous (SC) and visceral (VIS) adipose tissue (AT) depots, differentially regulated by the state of obesity and higher expressed in AT samples that exhibit higher thermogenic potential. CONCLUSIONS These data demonstrate for the first time a functional relevance of MBs lipid binding properties and establish MB as an important regulatory element of thermogenic capacity in brown and likely beige adipocytes.
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Affiliation(s)
- Lisa Christen
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Helen Broghammer
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Inka Rapöhn
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
| | - Kevin Möhlis
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Christian Strehlau
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
| | - Aleix Ribas‐Latre
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Claudia Gebhardt
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Lisa Roth
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
| | - Kerstin Krause
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
| | - Kathrin Landgraf
- Center for Pediatric Research Leipzig (CPL)University Hospital for Children and AdolescentsMedical FacultyUniversity of LeipzigLeipzigGermany
| | - Antje Körner
- Center for Pediatric Research Leipzig (CPL)University Hospital for Children and AdolescentsMedical FacultyUniversity of LeipzigLeipzigGermany
| | - Kerstin Rohde‐Zimmermann
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Anne Hoffmann
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Nora Klöting
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - Adhideb Ghosh
- Institute of FoodNutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | - Wenfei Sun
- Institute of FoodNutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | - Hua Dong
- Institute of FoodNutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | - Christian Wolfrum
- Institute of FoodNutrition and HealthETH ZurichSchwerzenbachSwitzerland
| | - Tienush Rassaf
- Department of Cardiology and Vascular MedicineWest German Heart and Vascular CenterMedical FacultyUniversity of Duisburg‐EssenEssenGermany
| | - Ulrike B. Hendgen‐Cotta
- Department of Cardiology and Vascular MedicineWest German Heart and Vascular CenterMedical FacultyUniversity of Duisburg‐EssenEssenGermany
| | - Michael Stumvoll
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
| | - Matthias Blüher
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
| | - John T. Heiker
- Helmholtz Institute for Metabolic, Obesity and Vascular Research (HI‐MAG) of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany
- Institute of Biochemistry, Faculty of Life SciencesUniversity of LeipzigLeipzigGermany
| | - Juliane Weiner
- Medical Department III ‐ EndocrinologyNephrologyRheumatologyUniversity of Leipzig Medical CenterLeipzigGermany
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18
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Li M, Tang X, Liao Z, Shen C, Cheng R, Fang M, Wang G, Li Y, Tang S, Xie L, Zhang Z, Kamau PM, Mwangi J, Lu Q, Li Y, Wang Y, MacKeigan DT, Cerenzia EG, Ni H, Lai R. Hypoxia and low temperature upregulate transferrin to induce hypercoagulability at high altitude. Blood 2022; 140:2063-2075. [PMID: 36040436 PMCID: PMC10653030 DOI: 10.1182/blood.2022016410] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 08/16/2022] [Indexed: 11/20/2022] Open
Abstract
Studies have shown significantly increased thromboembolic events at high altitude. We recently reported that transferrin could potentiate blood coagulation, but the underlying mechanism for high altitude-related thromboembolism is still poorly understood. Here, we examined the activity and concentration of plasma coagulation factors and transferrin in plasma collected from long-term human residents and short-stay mice exposed to varying altitudes. We found that the activities of thrombin and factor XIIa (FXIIa) along with the concentrations of transferrin were significantly increased in the plasma of humans and mice at high altitudes. Furthermore, both hypoxia (6% O2) and low temperature (0°C), 2 critical high-altitude factors, enhanced hypoxia-inducible factor 1α (HIF-1α) levels to promote the expression of the transferrin gene, whose enhancer region contains HIF-1α binding site, and consequently, to induce hypercoagulability by potentiating thrombin and FXIIa. Importantly, thromboembolic disorders and pathological insults in mouse models induced by both hypoxia and low temperature were ameliorated by transferrin interferences, including transferrin antibody treatment, transferrin downregulation, and the administration of our designed peptides that inhibit the potentiation of transferrin on thrombin and FXIIa. Thus, low temperature and hypoxia upregulated transferrin expression-promoted hypercoagulability. Our data suggest that targeting the transferrin-coagulation pathway is a novel and potentially powerful strategy against thromboembolic events caused by harmful environmental factors under high-altitude conditions.
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Affiliation(s)
- Meiquan Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- College of Agriculture and Life Sciences, Kunming University, Kunming, China
| | - Xiaopeng Tang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Zhiyi Liao
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Chuanbin Shen
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, St. Michael’s Hospital and Toronto Platelet Immunobiology Group, Toronto, ON, Canada
| | - Ruomei Cheng
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Mingqian Fang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Gan Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Ya Li
- Department of Clinical Laboratory, Yunnan Key Laboratory of Laboratory Medicine, Yunnan Innovation Team of Clinical Laboratory and Diagnosis, the First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Shuzhen Tang
- Department of Clinical Laboratory, the People’s Hospital of Diqing Tibetan Autonomous Prefecture, Shangri-La, China
| | - Li Xie
- Department of Clinical Laboratory, the Second Affiliated Hospital of Guangxi Medical University, Nanning, China
| | - Zhiye Zhang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Peter Muiruri Kamau
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - James Mwangi
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Kunming College of Life Science, University of Chinese Academy of Sciences, Beijing, China
| | - Qiumin Lu
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
| | - Yaxiong Li
- Department of Cardiovascular Surgery, Yan’an Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuming Wang
- Department of Clinical Laboratory, the Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Daniel Thomas MacKeigan
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, St. Michael’s Hospital and Toronto Platelet Immunobiology Group, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Eric G. Cerenzia
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, St. Michael’s Hospital and Toronto Platelet Immunobiology Group, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Heyu Ni
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada
- Department of Laboratory Medicine, Keenan Research Centre for Biomedical Science, St. Michael’s Hospital and Toronto Platelet Immunobiology Group, Toronto, ON, Canada
- Department of Physiology, University of Toronto, Toronto, ON, Canada
- Canadian Blood Services Centre for Innovation, Toronto, ON, Canada
- Department of Medicine, University of Toronto, Toronto, ON, Canada
| | - Ren Lai
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences/Key Laboratory of Bioactive Peptides of Yunnan Province, Kunming Institute of Zoology-The Chinese University of Hong Kong Joint Laboratory of Bioresources and Molecular Research in Common Diseases, National Resource Center for Non-Human Primates, Kunming Primate Research Center, National Research Facility for Phenotypic and Genetic Analysis of Model Animals (Primate Facility), Sino-African Joint Research Center, and Engineering Laboratory of Peptides, Kunming Institute of Zoology, Kunming, China
- Institutes for Drug Discovery and Development, Chinese Academy of Sciences, Shanghai, China
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19
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Kim SL, Shin S, Yang SJ. Iron Homeostasis and Energy Metabolism in Obesity. Clin Nutr Res 2022; 11:316-330. [PMID: 36381472 PMCID: PMC9633967 DOI: 10.7762/cnr.2022.11.4.316] [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: 09/21/2022] [Accepted: 10/18/2022] [Indexed: 01/24/2023] Open
Abstract
Iron plays a role in energy metabolism as a component of vital enzymes and electron transport chains (ETCs) for adenosine triphosphate (ATP) synthesis. The tricarboxylic acid (TCA) cycle and oxidative phosphorylation are crucial in generating ATP in mitochondria. At the mitochondria matrix, heme and iron-sulfur clusters are synthesized. Iron-sulfur cluster is a part of the aconitase in the TCA cycle and a functional or structural component of electron transfer proteins. Heme is the prosthetic group for cytochrome c, a principal component of the respiratory ETC. Regarding fat metabolism, iron regulates mitochondrial fat oxidation and affects the thermogenesis of brown adipose tissue (BAT). Thermogenesis is a process that increases energy expenditure, and BAT is a tissue that generates heat via mitochondrial fuel oxidation. Iron deficiency may impair mitochondrial fuel oxidation by inhibiting iron-containing molecules, leading to decreased energy expenditure. Although it is expected that impaired mitochondrial fuel oxidation may be restored by iron supplementation, its underlying mechanisms have not been clearly identified. Therefore, this review summarizes the current evidence on how iron regulates energy metabolism considering the TCA cycle, oxidative phosphorylation, and thermogenesis. Additionally, we relate iron-mediated metabolic regulation to obesity and obesity-related complications.
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Affiliation(s)
- Se Lin Kim
- Department of Food and Nutrition, Seoul Women’s University, Seoul 01797, Korea
| | - Sunhye Shin
- Department of Food and Nutrition, Seoul Women’s University, Seoul 01797, Korea
| | - Soo Jin Yang
- Department of Food and Nutrition, Seoul Women’s University, Seoul 01797, Korea
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20
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Clinical and Molecular Aspects of Iron Metabolism in Failing Myocytes. LIFE (BASEL, SWITZERLAND) 2022; 12:life12081203. [PMID: 36013382 PMCID: PMC9409945 DOI: 10.3390/life12081203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/15/2022] [Accepted: 07/22/2022] [Indexed: 11/16/2022]
Abstract
Heart failure (HF) is a common disease that causes significant limitations on the organism's capacity and, in extreme cases, leads to death. Clinically, iron deficiency (ID) plays an essential role in heart failure by deteriorating the patient's condition and is a prognostic marker indicating poor clinical outcomes. Therefore, in HF patients, supplementation of iron is recommended. However, iron treatment may cause adverse effects by increasing iron-related apoptosis and the production of oxygen radicals, which may cause additional heart damage. Furthermore, many knowledge gaps exist regarding the complex interplay between iron deficiency and heart failure. Here, we describe the current, comprehensive knowledge about the role of the proteins involved in iron metabolism. We will focus on the molecular and clinical aspects of iron deficiency in HF. We believe that summarizing the new advances in the translational and clinical research regarding iron deficiency in heart failure should broaden clinicians' awareness of this comorbidity.
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21
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Zhang Z, Salgado OC, Liu B, Moazzami Z, Hogquist KA, Farrar MA, Ruan HB. An OGT-STAT5 Axis in Regulatory T Cells Controls Energy and Iron Metabolism. Front Immunol 2022; 13:874863. [PMID: 35874700 PMCID: PMC9304952 DOI: 10.3389/fimmu.2022.874863] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Accepted: 06/20/2022] [Indexed: 11/13/2022] Open
Abstract
The immunosuppressive regulatory T (Treg) cells exert emerging effects on adipose tissue homeostasis and systemic metabolism. However, the metabolic regulation and effector mechanisms of Treg cells in coping with obesogenic insults are not fully understood. We have previously established an indispensable role of the O-linked N-Acetylglucosamine (O-GlcNAc) signaling in maintaining Treg cell identity and promoting Treg suppressor function, via STAT5 O-GlcNAcylation and activation. Here, we investigate the O-GlcNAc transferase (OGT)-STAT5 axis in driving the immunomodulatory function of Treg cells for metabolic homeostasis. Treg cell-specific OGT deficiency renders mice more vulnerable to high-fat diet (HFD)-induced adiposity and insulin resistance. Conversely, constitutive STAT5 activation in Treg cells confers protection against adipose tissue expansion and impaired glucose and insulin metabolism upon HFD feeding, in part by suppressing adipose lipid uptake and redistributing systemic iron storage. Treg cell function can be augmented by targeting the OGT-STAT5 axis to combat obesity and related metabolic disorders.
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Affiliation(s)
- Zengdi Zhang
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, United States
| | - Oscar C. Salgado
- Center for Immunology, University of Minnesota, Minneapolis, MN, United States
| | - Bing Liu
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, United States
| | - Zahra Moazzami
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, United States
- Department of Food Science and Nutrition, University of Minnesota, Minneapolis, MN, United States
| | - Kristin A. Hogquist
- Center for Immunology, University of Minnesota, Minneapolis, MN, United States
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, United States
| | - Michael A. Farrar
- Center for Immunology, University of Minnesota, Minneapolis, MN, United States
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN, United States
| | - Hai-Bin Ruan
- Department of Integrative Biology and Physiology, University of Minnesota, Minneapolis, MN, United States
- Center for Immunology, University of Minnesota, Minneapolis, MN, United States
- *Correspondence: Hai-Bin Ruan,
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22
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Ameka MK, Beavers WN, Shaver CM, Ware LB, Kerchberger VE, Schoenfelt KQ, Sun L, Koyama T, Skaar EP, Becker L, Hasty AH. An Iron Refractory Phenotype in Obese Adipose Tissue Macrophages Leads to Adipocyte Iron Overload. Int J Mol Sci 2022; 23:ijms23137417. [PMID: 35806422 PMCID: PMC9267114 DOI: 10.3390/ijms23137417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Adipocyte iron overload is a maladaptation associated with obesity and insulin resistance. The objective of the current study was to determine whether and how adipose tissue macrophages (ATMs) regulate adipocyte iron concentrations and whether this is impacted by obesity. Using bone marrow-derived macrophages (BMDMs) polarized to M0, M1, M2, or metabolically activated (MMe) phenotypes, we showed that MMe BMDMs and ATMs from obese mice have reduced expression of several iron-related proteins. Furthermore, the bioenergetic response to iron in obese ATMs was hampered. ATMs from iron-injected lean mice increased their glycolytic and respiratory capacities, thus maintaining metabolic flexibility, while ATMs from obese mice did not. Using an isotope-based system, we found that iron exchange between BMDMs and adipocytes was regulated by macrophage phenotype. At the end of the co-culture, MMe macrophages transferred and received more iron from adipocytes than M0, M1, and M2 macrophages. This culminated in a decrease in total iron in MMe macrophages and an increase in total iron in adipocytes compared with M2 macrophages. Taken together, in the MMe condition, the redistribution of iron is biased toward macrophage iron deficiency and simultaneous adipocyte iron overload. These data suggest that obesity changes the communication of iron between adipocytes and macrophages and that rectifying this iron communication channel may be a novel therapeutic target to alleviate insulin resistance.
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Affiliation(s)
- Magdalene K. Ameka
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, TN 37212, USA;
| | - William N. Beavers
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Ciara M. Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
| | - Lorraine B. Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Vern Eric Kerchberger
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Kelly Q. Schoenfelt
- Department of Cancer Research, University of Chicago, Chicago, IL 60637, USA; (K.Q.S.); (L.B.)
| | - Lili Sun
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (L.S.); (T.K.)
| | - Tatsuki Koyama
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (L.S.); (T.K.)
| | - Eric P. Skaar
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Lev Becker
- Department of Cancer Research, University of Chicago, Chicago, IL 60637, USA; (K.Q.S.); (L.B.)
| | - Alyssa H. Hasty
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, TN 37212, USA;
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
- Correspondence:
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23
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Das BK, Wang L, Fujiwara T, Zhou J, Aykin-Burns N, Krager KJ, Lan R, Mackintosh SG, Edmondson R, Jennings ML, Wang X, Feng JQ, Barrientos T, Gogoi J, Kannan A, Gao L, Xing W, Mohan S, Zhao H. Transferrin receptor 1-mediated iron uptake regulates bone mass in mice via osteoclast mitochondria and cytoskeleton. eLife 2022; 11:73539. [PMID: 35758636 PMCID: PMC9352353 DOI: 10.7554/elife.73539] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 06/25/2022] [Indexed: 11/13/2022] Open
Abstract
Increased intracellular iron spurs mitochondrial biogenesis and respiration to satisfy high-energy demand during osteoclast differentiation and bone-resorbing activities. Transferrin receptor 1 (Tfr1) mediates cellular iron uptake through endocytosis of iron-loaded transferrin, and its expression increases during osteoclast differentiation. Nonetheless, the precise functions of Tfr1 and Tfr1-mediated iron uptake in osteoclast biology and skeletal homeostasis remain incompletely understood. To investigate the role of Tfr1 in osteoclast lineage cells in vivo and in vitro, we crossed Tfrc (encoding Tfr1)-floxed mice with Lyz2 (LysM)-Cre and Cathepsin K (Ctsk)-Cre mice to generate Tfrc conditional knockout mice in myeloid osteoclast precursors (Tfr1ΔLysM) or differentiated osteoclasts (Tfr1ΔCtsk), respectively. Skeletal phenotyping by µCT and histology unveiled a significant increase in trabecular bone mass with normal osteoclast number in long bones of 10-week-old young and 6-month-old adult female but not male Tfr1ΔLysM mice. Although high trabecular bone volume in long bones was observed in both male and female Tfr1ΔCtsk mice, this phenotype was more pronounced in female knockout mice. Consistent with this gender-dependent phenomena, estrogen deficiency induced by ovariectomy decreased trabecular bone mass in Tfr1ΔLysM mice. Mechanistically, disruption of Tfr1 expression attenuated mitochondrial metabolism and cytoskeletal organization in mature osteoclasts in vitro by attenuating mitochondrial respiration and activation of the Src-Rac1-WAVE regulatory complex axis, respectively, leading to decreased bone resorption with little impact on osteoclast differentiation. These results indicate that Tfr1-mediated iron uptake is specifically required for osteoclast function and is indispensable for bone remodeling in a gender-dependent manner.
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Affiliation(s)
- Bhaba K Das
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Lei Wang
- Department of Orthopedics, Anhui Medical University, Hefei, China
| | - Toshifumi Fujiwara
- Department of Orthopedic Surgery, Kyushu University Hospital, Fukuoka, Japan
| | - Jian Zhou
- Department of Orthopedics, Anhui Medical University, HeFei, China
| | - Nukhet Aykin-Burns
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Kimberly J Krager
- Department of Pharmaceutical Sciences, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Renny Lan
- Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Samuel G Mackintosh
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Ricky Edmondson
- Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Michael L Jennings
- Department of Physiology and Cell Biology, University of Arkansas for Medical Sciences, Little Rock, United States
| | - Xiaofang Wang
- Department of Biomedical Sciences, Texas A&M University, Dallas, United States
| | - Jian Q Feng
- Department of Biomedical Sciences, Texas A&M University, Dallas, United States
| | | | - Jyoti Gogoi
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Aarthi Kannan
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Ling Gao
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
| | - Weirong Xing
- Musculoskeletal Disease Center, VA Loma Linda Healthcare System, Loma Linda, United States
| | - Subburaman Mohan
- Musculoskeletal Disease Center, VA Loma Linda Healthcare System, Loma Linda, United States
| | - Haibo Zhao
- Long Beach VA Healthcare System, Southern California Institute for Research and Education, Long Beach, United States
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24
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Wang P, Wu T, Fu Q, Liao Q, Li Y, Huang T, Li Y, Zhou L, Song Z. Maternal High-Fructose Intake Activates Myogenic Program in Fetal Brown Fat and Predisposes Offspring to Diet-Induced Metabolic Dysfunctions in Adulthood. Front Nutr 2022; 9:848983. [PMID: 35479745 PMCID: PMC9036479 DOI: 10.3389/fnut.2022.848983] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Accepted: 02/28/2022] [Indexed: 12/12/2022] Open
Abstract
Excess dietary fructose intake is a major public health concern due to its deleterious effect to cause various metabolic and cardiovascular diseases. However, little is known about the effects of high-fructose consumption during pregnancy on offspring metabolic health in adulthood. Here, we show that maternal consumption of 20% (w/v) fructose water during pregnancy does not alter the metabolic balance of offspring with a chow diet, but predisposes them to obesity, fatty liver, and insulin resistance when challenged by a high-fat diet. Mechanistically, diet-induced brown fat reprogramming and global energy expenditure in offspring of fructose-fed dams are impaired. RNA-seq analysis of the fetal brown fat tissue reveals that the myogenic pathway is predominantly upregulated in the fructose-treated group. Meanwhile, circulating fructose level is found to be significantly elevated in both fructose-fed dams and their fetuses. Importantly fructose gavage also acutely activates the myogenic program in mice brown fat. Together, our data suggest that maternal high-fructose intake impairs fetal brown fat development, resultantly attenuates diet-induced thermogenesis and causes metabolic disorders in adult offspring probably through inducing myogenic signature in brown fat at the fetal stage.
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Affiliation(s)
- Peng Wang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Tian Wu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qinghua Fu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Qichao Liao
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yan Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Tengda Huang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Yixing Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Lei Zhou
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Ziyi Song
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, College of Animal Science and Technology, Guangxi University, Nanning, China
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25
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Yue Y, Hua Y, Zhang J, Guo Y, Zhao D, Huo W, Xiong Y, Chen F, Lin Y, Xiong X, Li J. Establishment of a subcutaneous adipogenesis model and distinct roles of LKB1 regulation on adipocyte lipid accumulation in high-altitude Bos grunniens. JOURNAL OF APPLIED ANIMAL RESEARCH 2022. [DOI: 10.1080/09712119.2022.2042001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Yongqi Yue
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yonglin Hua
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Jing Zhang
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yu Guo
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Dan Zhao
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Wentao Huo
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Yan Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Fenfen Chen
- School of Life Sciences, Southwest Forestry University, Kunming, People’s Republic of China
| | - Yaqiu Lin
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Xianrong Xiong
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
| | - Jian Li
- Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization, Ministry of Education, Chengdu, People’s Republic of China
- Key Laboratory of Animal Science of National Ethnic Affairs Commission of China, Southwest Minzu University, Chengdu, People’s Republic of China
- College of Animal &Veterinary Sciences, Southwest Minzu University, Chengdu, People’s Republic of China
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26
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Essential role of systemic iron mobilization and redistribution for adaptive thermogenesis through HIF2-α/hepcidin axis. Proc Natl Acad Sci U S A 2021; 118:2109186118. [PMID: 34593646 DOI: 10.1073/pnas.2109186118] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/30/2021] [Indexed: 12/23/2022] Open
Abstract
Iron is an essential biometal, but is toxic if it exists in excess. Therefore, iron content is tightly regulated at cellular and systemic levels to meet metabolic demands but to avoid toxicity. We have recently reported that adaptive thermogenesis, a critical metabolic pathway to maintain whole-body energy homeostasis, is an iron-demanding process for rapid biogenesis of mitochondria. However, little information is available on iron mobilization from storage sites to thermogenic fat. This study aimed to determine the iron-regulatory network that underlies beige adipogenesis. We hypothesized that thermogenic stimulus initiates the signaling interplay between adipocyte iron demands and systemic iron liberation, resulting in iron redistribution into beige fat. To test this hypothesis, we induced reversible activation of beige adipogenesis in C57BL/6 mice by administering a β3-adrenoreceptor agonist CL 316,243 (CL). Our results revealed that CL stimulation induced the iron-regulatory protein-mediated iron import into adipocytes, suppressed hepcidin transcription, and mobilized iron from the spleen. Mechanistically, CL stimulation induced an acute activation of hypoxia-inducible factor 2-α (HIF2-α), erythropoietin production, and splenic erythroid maturation, leading to hepcidin suppression. Disruption of systemic iron homeostasis by pharmacological HIF2-α inhibitor PT2385 or exogenous administration of hepcidin-25 significantly impaired beige fat development. Our findings suggest that securing iron availability via coordinated interplay between renal hypoxia and hepcidin down-regulation is a fundamental mechanism to activate adaptive thermogenesis. It also provides an insight into the effects of adaptive thermogenesis on systemic iron mobilization and redistribution.
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27
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Yook JS, Thomas SS, Toney AM, You M, Kim YC, Liu Z, Lee J, Chung S. Dietary Iron Deficiency Modulates Adipocyte Iron Homeostasis, Adaptive Thermogenesis, and Obesity in C57BL/6 Mice. J Nutr 2021; 151:2967-2975. [PMID: 34383942 PMCID: PMC8485911 DOI: 10.1093/jn/nxab222] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/29/2021] [Accepted: 06/15/2021] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Adaptive thermogenesis is an iron-demanding pathway, significantly contributing to whole-body energy expenditure. However, the effects of iron-deficient diets on adaptive thermogenesis and obesity remain unknown. OBJECTIVES We aimed to determine the impact of dietary iron deficiency on iron homeostasis in adipocytes, adaptive thermogenic capacity, and metabolic consequences in obesity. METHODS C57BL/6 male mice were assigned to either the iron-adequate (IA, 35 ppm) or the iron-deficient group (ID, 3 ppm) at weaning. Upon 8 wk of age, both IA and ID groups received an isocaloric high-fat diet (45% kcal from fat) for 10 wk, maintaining the same iron content. Mice (n = 8) were used to determine the iron status at the systemic and tissue levels and lipid metabolism and inflammatory signaling in adipose tissue. The same mice were used to evaluate cold tolerance (4°C) for 3 h. For assessing adaptive thermogenesis, mice (n = 5) received an intraperitoneal injection of β3-adrenoceptor agonist CL316243 (CL) for 5 d. RESULTS Compared with the IA group, the ID group had nonanemic iron deficiency, lower serum ferritin (42.8%, P < 0.01), and greater weight gain (8.67%, P < 0.05) and insulin resistance (159%, P < 0.01), partly due to reduced AMP-activated protein kinase activation (61.0%, P < 0.05). Upon cold exposure, the ID group maintained a core body temperature 2°C lower than the IA group. The ID group had lower iron content (47.0%, P < 0.01) in the inguinal adipose tissue (iWAT) than the IA group, which was associated with impaired adaptive thermogenesis. In response to CL, ID mice showed decreased heat production (P < 0.01) and defective upregulation of beige adipocyte-specific markers, including uncoupling protein 1 (41.1%, P < 0.001), transferrin receptor 1 (47.5%, P < 0.001), and mitochondrial respiratory chain complexes (P < 0.05) compared with IA mice. CONCLUSIONS Dietary iron deficiency deregulates iron balance in the iWAT and impairs adaptive thermogenesis, thereby escalating the diet-induced weight gain in C57BL/6 mice.
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Affiliation(s)
- Jin-Seon Yook
- Department of Nutrition, University of Massachusetts, Amherst, MA, USA
| | | | - Ashley Mulcahy Toney
- Department of Nutrition and Health Sciences, University of Nebraska–Lincoln, Lincoln, NE, USA
| | - Mikyoung You
- Department of Nutrition, University of Massachusetts, Amherst, MA, USA
| | - Young-Cheul Kim
- Department of Nutrition, University of Massachusetts, Amherst, MA, USA
| | - Zhenhua Liu
- Department of Nutrition, University of Massachusetts, Amherst, MA, USA
| | - Jaekwon Lee
- Department of Biochemistry, University of Nebraska–Lincoln, Lincoln, NE, USA
| | - Soonkyu Chung
- Department of Nutrition, University of Massachusetts, Amherst, MA, USA
- Department of Nutrition and Health Sciences, University of Nebraska–Lincoln, Lincoln, NE, USA
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28
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Zhang Z, Funcke JB, Zi Z, Zhao S, Straub LG, Zhu Y, Zhu Q, Crewe C, An YA, Chen S, Li N, Wang MY, Ghaben AL, Lee C, Gautron L, Engelking LJ, Raj P, Deng Y, Gordillo R, Kusminski CM, Scherer PE. Adipocyte iron levels impinge on a fat-gut crosstalk to regulate intestinal lipid absorption and mediate protection from obesity. Cell Metab 2021; 33:1624-1639.e9. [PMID: 34174197 PMCID: PMC8338877 DOI: 10.1016/j.cmet.2021.06.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 04/06/2021] [Accepted: 06/02/2021] [Indexed: 02/07/2023]
Abstract
Iron overload is positively associated with diabetes risk. However, the role of iron in adipose tissue remains incompletely understood. Here, we report that transferrin-receptor-1-mediated iron uptake is differentially required for distinct subtypes of adipocytes. Notably, adipocyte-specific transferrin receptor 1 deficiency substantially protects mice from high-fat-diet-induced metabolic disorders. Mechanistically, low cellular iron levels have a positive impact on the health of the white adipose tissue and can restrict lipid absorption from the intestine through modulation of vesicular transport in enterocytes following high-fat diet feeding. Specific reduction of adipocyte iron by AAV-mediated overexpression of the iron exporter Ferroportin1 in adult mice effectively mimics these protective effects. In summary, our studies highlight an important role of adipocyte iron in the maintenance of systemic metabolism through an adipocyte-enterocyte axis, offering an additional level of control over caloric influx into the system after feeding by regulating intestinal lipid absorption.
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Affiliation(s)
- Zhuzhen Zhang
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Jan-Bernd Funcke
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Zhenzhen Zi
- Department of Biochemistry, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shangang Zhao
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Leon G Straub
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yi Zhu
- Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - Qingzhang Zhu
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Clair Crewe
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yu A An
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Shiuhwei Chen
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Na Li
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - May-Yun Wang
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Alexandra L Ghaben
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Charlotte Lee
- Center for Hypothalamic Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Laurent Gautron
- Center for Hypothalamic Research, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Luke J Engelking
- Department of Molecular Genetics, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Prithvi Raj
- Department of Immunology, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Yingfeng Deng
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Ruth Gordillo
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Christine M Kusminski
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Philipp E Scherer
- Touchstone Diabetes Center, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX, USA; Department of Cell Biology, University of Texas Southwestern Medical Center, Dallas, TX, USA.
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29
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Ding H, Chen S, Pan X, Dai X, Pan G, Li Z, Mai X, Tian Y, Zhang S, Liu B, Cao G, Yao Z, Yao X, Gao L, Yang L, Chen X, Sun J, Chen H, Han M, Yin Y, Xu G, Li H, Wu W, Chen Z, Lin J, Xiang L, Hu J, Lu Y, Zhu X, Xie L. Transferrin receptor 1 ablation in satellite cells impedes skeletal muscle regeneration through activation of ferroptosis. J Cachexia Sarcopenia Muscle 2021; 12:746-768. [PMID: 33955709 PMCID: PMC8200440 DOI: 10.1002/jcsm.12700] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 02/18/2021] [Accepted: 03/16/2021] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Satellite cells (SCs) are critical to skeletal muscle regeneration. Inactivation of SCs is linked to skeletal muscle loss. Transferrin receptor 1 (Tfr1) is associated with muscular dysfunction as muscle-specific deletion of Tfr1 results in growth retardation, metabolic disorder, and lethality, shedding light on the importance of Tfr1 in muscle physiology. However, its physiological function regarding skeletal muscle ageing and regeneration remains unexplored. METHODS RNA sequencing is applied to skeletal muscles of different ages to identify Tfr1 associated to skeletal muscle ageing. Mice with conditional SC ablation of Tfr1 were generated. Between Tfr1SC/WT and Tfr1SC/KO (n = 6-8 mice per group), cardiotoxin was intramuscularly injected, and transverse abdominal muscle was dissected, weighted, and cryosectioned, followed by immunostaining, haematoxylin and eosin staining, and Masson staining. These phenotypical analyses were followed with functional analysis such as flow cytometry, tread mill, Prussian blue staining, and transmission electron microscopy to identify pathological pathways that contribute to regeneration defects. RESULTS By comparing gene expression between young (2 weeks old, n = 3) and aged (80 weeks old, n = 3) mice among four types of muscles, we identified that Tfr1 expression is declined in muscles of aged mice (~80% reduction, P < 0.005), so as to its protein level in SCs of aged mice. From in vivo and ex vivo experiments, Tfr1 deletion in SCs results in an irreversible depletion of SCs (~60% reduction, P < 0.005) and cell-autonomous defect in SC proliferation and differentiation, leading to skeletal muscle regeneration impairment, followed by labile iron accumulation, lipogenesis, and decreased Gpx4 and Nrf2 protein levels leading to reactive oxygen species scavenger defects. These abnormal phenomena including iron accumulation, activation of unsaturated fatty acid biosynthesis, and lipid peroxidation are orchestrated with the occurrence of ferroptosis in skeletal muscle. Ferroptosis further exacerbates SC proliferation and skeletal muscle regeneration. Ferrostatin-1, a ferroptosis inhibitor, could not rescue ferroptosis. However, intramuscular administration of lentivirus-expressing Tfr1 could partially reduce labile iron accumulation, decrease lipogenesis, and promote skeletal muscle regeneration. Most importantly, declined Tfr1 but increased Slc39a14 protein level on cellular membrane contributes to labile iron accumulation in skeletal muscle of aged rodents (~80 weeks old), leading to activation of ferroptosis in aged skeletal muscle. This is inhibited by ferrostatin-1 to improve running time (P = 0.0257) and distance (P = 0.0248). CONCLUSIONS Satellite cell-specific deletion of Tfr1 impairs skeletal muscle regeneration with activation of ferroptosis. This phenomenon is recapitulated in skeletal muscle of aged rodents and human sarcopenia. Our study provides mechanistic information for developing novel therapeutic strategies against muscular ageing and diseases.
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Affiliation(s)
- Hongrong Ding
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Shujie Chen
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xiaohan Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Xiaoshuang Dai
- BGI Institute of Applied AgricultureBGI‐ShenzhenShenzhenChina
| | - Guihua Pan
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Ze Li
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Xudong Mai
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Ye Tian
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Susu Zhang
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Bingdong Liu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Guangchao Cao
- The Biomedical Translational Research Institute, Faculty of Medical ScienceJinan UniversityGuangzhouChina
| | - Zhicheng Yao
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiangping Yao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Liang Gao
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Li Yang
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Xiaoyan Chen
- The Third Affiliated Hospital of Sun Yat‐Sen UniversityGuangzhouChina
| | - Jia Sun
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Hong Chen
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Mulan Han
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Yulong Yin
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- China Institute of Subtropical AgricultureChinese Academy of SciencesChangshaHunanChina
| | - Guohuan Xu
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
| | - Huijun Li
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Weidong Wu
- College of Public HealthXinxiang Medical UniversityXinxiangChina
| | - Zheng Chen
- HIT Center for Life Sciences, School of Life Science and TechnologyHarbin Institute of TechnologyHarbinChina
| | - Jingchao Lin
- Metabo‐Profile Biotechnology (Shanghai) Co. Ltd.ShanghaiChina
| | - Liping Xiang
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Jun Hu
- Department of OrthopedicsThe First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsuChina
| | - Yan Lu
- Key Laboratory of Metabolism and Molecular Medicine, The Ministry of Education, Department of Endocrinology and MetabolismZhongshan Hospital, Fudan UniversityShanghaiChina
| | - Xiao Zhu
- Guangdong Provincial Key Laboratory of Molecular Diagnosis, The Marine Biomedical Research InstituteGuangdong Medical UniversityZhanjiangChina
| | - Liwei Xie
- Guangdong Provincial Key Laboratory of Microbial Culture Collection and Application, State Key Laboratory of Applied Microbiology Southern ChinaInstitute of Microbiology, Guangdong Academy of SciencesGuangzhouChina
- Department of Endocrinology and MetabolismZhujiang Hospital, Southern Medical UniversityGuangzhouChina
- College of Public HealthXinxiang Medical UniversityXinxiangChina
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30
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Ma W, Jia L, Xiong Q, Feng Y, Du H. The role of iron homeostasis in adipocyte metabolism. Food Funct 2021; 12:4246-4253. [PMID: 33876811 DOI: 10.1039/d0fo03442h] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Iron plays a vital role in the metabolism of adipose tissue. On the one hand, iron is essential for differentiation, endocrine, energy supply and other physiological functions of adipocytes. Iron homeostasis affects the progression of many chronic metabolic diseases such as obesity, type 2 diabetes mellitus, and non-alcoholic fatty liver disease. In adipose tissue, iron deficiency is associated with obesity, mainly due to inflammation. Nevertheless, excessive iron in adipose tissue leads to decreased insulin sensitivity owing to mitochondrial dysfunction and adipokine changes. On the other hand, iron has an effect on the thermogenesis of adipocytes. Iron deficiency affects the production of beige fat and the direction of the differentiation of brown fat. In this review, we summarize the current understanding of the crosstalk between iron homeostasis and metabolism in adipose tissue.
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Affiliation(s)
- Wan Ma
- Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, College of Animal Science, Zhejiang University, Hangzhou, China.
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31
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Abstract
Temperature is an important factor in the process of life, as thermal energy transfer participates in all biological events in organisms. Due to technical limitations, there is still a lot more information to be explored regarding the correlation between life activities and temperature changes. In recent years, the emergence of a variety of new temperature measurement methods has facilitated further research in this field. Here, we introduce the latest advances in temperature sensors for biological detection and their related applications in metabolic research. Various technologies are discussed in terms of their advantages and shortcomings, and future prospects are presented.
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Affiliation(s)
- Fangxu Wang
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Yuexia Han
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
| | - Ning Gu
- State Key Laboratory of Bioelectronics, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, Nanjing 210096, China
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32
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Yook JS, You M, Kim Y, Zhou M, Liu Z, Kim YC, Lee J, Chung S. The thermogenic characteristics of adipocytes are dependent on the regulation of iron homeostasis. J Biol Chem 2021; 296:100452. [PMID: 33631196 PMCID: PMC8010711 DOI: 10.1016/j.jbc.2021.100452] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/09/2021] [Accepted: 02/18/2021] [Indexed: 12/15/2022] Open
Abstract
The development of thermogenic adipocytes concurs with mitochondrial biogenesis, an iron-dependent pathway. Iron regulatory proteins (IRP) 1 and 2 are RNA-binding proteins that regulate intracellular iron homeostasis. IRPs bind to the iron-response element (IRE) of their target mRNAs, balancing iron uptake and deposition at the posttranscriptional levels. However, IRP/IRE-dependent iron regulation in adipocytes is largely unknown. We hypothesized that iron demands are higher in brown/beige adipocytes than white adipocytes to maintain the thermogenic mitochondrial capacity. To test this hypothesis, we investigated the IRP/IRE regulatory system in different depots of adipose tissue. Our results revealed that 1) IRP/IRE interaction was increased in proportional to the thermogenic function of the adipose depot, 2) adipose iron content was increased in adipose tissue browning upon β3-adrenoceptor stimulation, while decreased in thermoneutral conditions, and 3) modulation of iron content was linked with mitochondrial biogenesis. Moreover, the iron requirement was higher in HIB1B brown adipocytes than 3T3-L1 white adipocytes during differentiation. The reduction of the labile iron pool (LIP) suppressed the differentiation of brown/beige adipocytes and mitochondrial biogenesis. Using the 59Fe-Tf, we also demonstrated that thermogenic stimuli triggered cell-autonomous iron uptake and mitochondrial compartmentalization as well as enhanced mitochondrial respiration. Collectively, our work demonstrated that IRP/IRE signaling and subsequent adaptation in iron metabolism are a critical determinant for the thermogenic function of adipocytes.
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Affiliation(s)
- Jin-Seon Yook
- Department of Nutrition and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Mikyoung You
- Department of Nutrition and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Yongeun Kim
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, Nebraska, USA
| | - Mi Zhou
- Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, Nebraska, USA
| | - Zhenhua Liu
- Department of Nutrition and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Young-Cheul Kim
- Department of Nutrition and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA
| | - Jaekwon Lee
- Department of Biochemistry, University of Nebraska, Lincoln, Nebraska, USA
| | - Soonkyu Chung
- Department of Nutrition and Health Sciences, University of Massachusetts, Amherst, Massachusetts, USA; Department of Nutrition and Health Sciences, University of Nebraska, Lincoln, Nebraska, USA.
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33
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Qiu J, Zhang Z, Wang S, Chen Y, Liu C, Xu S, Wang D, Su J, Ni M, Yu J, Cui X, Ma L, Hu T, Hu Y, Gu X, Ma X, Wang J, Xu L. Transferrin Receptor Functionally Marks Thermogenic Adipocytes. Front Cell Dev Biol 2020; 8:572459. [PMID: 33251209 PMCID: PMC7676909 DOI: 10.3389/fcell.2020.572459] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 10/12/2020] [Indexed: 12/11/2022] Open
Abstract
Background Thermogenic adipocytes, including beige and brown adipocytes, are critical for thermogenesis and energy homeostasis. Identification of functional cell surface markers of thermogenic adipocytes is of significance for potential application in biological and clinical practices. Methods With a combination of RNA-sequencing of in vivo and in vitro models, we identified transferrin receptor (Tfr1), a receptor specialized for cellular iron uptake, as a previously unappreciated cell surface molecule for thermogenic adipocytes compared to white adipocytes. The alternation of Tfr1 levels under physiological and pathological stimuli was assessed, and the mitochondria functionality, browning capacity, and iron metabolism of mature adipocytes were examined with Tfr1 knockdown. Results Tfr1 was expressed predominantly in thermogenic adipocytes versus white adipocyte, and its expression levels were tightly correlated with the activation or inhibition status of thermogenic adipocytes under external stimuli. Besides, Tfr1 gene deficiency in thermogenic adipocytes led to reduced thermogenic gene programs and mitochondrial integrity. Conclusion Tfr1 functionally marks thermogenic adipocytes and could serve as a potential thermogenic adipocyte surface marker.
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Affiliation(s)
- Jin Qiu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhiyin Zhang
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Sainan Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yanru Chen
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Caizhi Liu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Sainan Xu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Dongmei Wang
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Junlei Su
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Mengshan Ni
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jian Yu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Xiangdi Cui
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Lu Ma
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Tianhui Hu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
| | - Yepeng Hu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xuejiang Gu
- Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xinran Ma
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China.,Department of Endocrine and Metabolic Diseases, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Jiqiu Wang
- Department of Endocrinology and Metabolism, China National Research Center for Metabolic Diseases, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Lingyan Xu
- Shanghai Key Laboratory of Regulatory Biology, Institute of Biomedical Sciences, School of Life Sciences, East China Normal University, Shanghai, China
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34
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Abstract
Low-grade chronic adipose tissue (AT) inflammation is now recognized as a pivotal driver of the multi-organ dysfunction associated with obesity-related complications; and adipose tissue macrophages (ATMs) are key to the development of this inflammatory milieu. Along with their role in immunosurveillance, ATMs are central regulators of AT iron homeostasis. Under optimal conditions, ATMs maintain a proper homeostatic balance of iron in adipocytes; however, during obesity, this relationship is altered, and iron is repartitioned into adipocytes as opposed to ATMs. This adipocyte iron overload leads to systemic IR and the mechanism for these effects is still under investigation. Here, we comment on the most recent findings addressing the interplay between adipocyte and ATM iron handling, and metabolic dysfunction.
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