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Hung YH, Kim Y, Mitchell SB, Thorn TL, Aydemir TB. Absence of Slc39a14/Zip14 in mouse pancreatic beta cells results in hyperinsulinemia. Am J Physiol Endocrinol Metab 2024; 326:E92-E105. [PMID: 38019082 DOI: 10.1152/ajpendo.00117.2023] [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: 04/19/2023] [Revised: 11/20/2023] [Accepted: 11/21/2023] [Indexed: 11/30/2023]
Abstract
Zinc is an essential component of the insulin protein complex synthesized in β cells. The intracellular compartmentalization and distribution of zinc are controlled by 24 transmembrane zinc transporters belonging to the ZnT or Zrt/Irt-like protein (ZIP) family. Downregulation of SLC39A14/ZIP14 has been reported in pancreatic islets of patients with type 2 diabetes (T2D) as well as mouse models of high-fat diet (HFD)- or db/db-induced obesity. Our previous studies observed mild hyperinsulinemia in mice with whole body knockout of Slc39a14 (Zip14 KO). Based on our current secondary data analysis from an integrative single-cell RNA-seq dataset of human whole pancreatic tissue, SLC39A14 (coding ZIP14) is the only other zinc transporter expressed abundantly in human β cells besides well-known zinc transporter SLC30A8 (coding ZnT8). In the present work, using pancreatic β cell-specific knockout of Slc39a14 (β-Zip14 KO), we investigated the role of SLC39A14/ZIP14-mediated intracellular zinc trafficking in glucose-stimulated insulin secretion and subsequent metabolic responses. Glucose-stimulated insulin secretion, zinc concentrations, and cellular localization of ZIP14 were assessed using in vivo, ex vivo, and in vitro assays using β-Zip14 KO, isolated islets, and murine cell line MIN6. Metabolic evaluations were done on both chow- and HFD-fed mice using time-domain nuclear magnetic resonance and a comprehensive laboratory animal monitoring system. ZIP14 localizes on the endoplasmic reticulum regulating intracellular zinc trafficking in β cells and serves as a negative regulator of glucose-stimulated insulin secretion. Deletion of Zip14 resulted in greater glucose-stimulated insulin secretion, increased energy expenditure, and shifted energy metabolism toward fatty acid utilization. HFD caused β-Zip14 KO mice to develop greater islet hyperplasia, compensatory hyperinsulinemia, and mild insulin resistance and hyperglycemia. This study provided new insights into the contribution of metal transporter ZIP14-mediated intracellular zinc trafficking in glucose-stimulated insulin secretion and subsequent metabolic responses.NEW & NOTEWORTHY Metal transporter SLC39A14/ZIP14 is downregulated in pancreatic islets of patients with T2D and mouse models of HFD- or db/db-induced obesity. However, the function of ZIP14-mediated intracellular zinc trafficking in β cells is unknown. Our analyses revealed that SLC39A14 is the only Zn transporter expressed abundantly in human β cells besides SLC30A8. Within the β cells, ZIP14 is localized on the endoplasmic reticulum and serves as a negative regulator of insulin secretion, providing a potential therapeutic target for T2D.
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Affiliation(s)
- Yu-Han Hung
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
- Department of College of Veterinary Medicine, Cornell University, Ithaca, New York, United States
| | - Yongeun Kim
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Samuel Blake Mitchell
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Trista Lee Thorn
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
| | - Tolunay Beker Aydemir
- Division of Nutritional Sciences, Cornell University, Ithaca, New York, United States
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Lima FDS, Gonçalves CEDS, Fock RA. Zinc and aging: a narrative review of the effects on hematopoiesis and its link with diseases. Nutr Rev 2023:nuad115. [PMID: 37717139 DOI: 10.1093/nutrit/nuad115] [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] [Indexed: 09/18/2023] Open
Abstract
There has been a global increase in the older population in recent decades and, as age advances, complex metabolic and epigenetic changes occur in the organism, and these may trigger some health complications commonly found among this population. Additionally, several changes occur in older people that can reduce the dietary intake or the process of nutrient absorption. In this way, tissues with high nutrient requirements are more affected. Hematopoiesis is the process of formation, development, and maturation of blood cells and is a process with a high turnover. This high demand makes the integrity of the hematopoietic process susceptible to various factors that impair physiological function, such as aging and micronutrient bioavailability. Among these micronutrients, Zinc is considered an important micronutrient, playing diverse roles across various tissues and cell types. Some of the alterations in hematopoiesis that appear as a consequence of aging and due to insufficient micronutrient intake are well described in the literature; however, not much is known about how zinc deficiency contributes towards the development of diseases seen in aging. Considering the importance of zinc to act on several biological processes, this narrative review discusses several studies related to the physiological requirements, deficiency, or excess of zinc, including studies in experimental models and humans, and aimed to shed light on the relationship between zinc and the regulation of hematopoietic tissue, exploring possible links between this mineral with common disorders that appear during aging.
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Affiliation(s)
- Fabiana Da Silva Lima
- Department of Food and Experimental Nutrition, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | | | - Ricardo Ambrósio Fock
- Department of Clinical and Toxicological Analysis, School of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
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Alves FM, Ayton S, Bush AI, Lynch GS, Koopman R. Age-Related Changes in Skeletal Muscle Iron Homeostasis. J Gerontol A Biol Sci Med Sci 2023; 78:16-24. [PMID: 35869751 DOI: 10.1093/gerona/glac139] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Indexed: 01/31/2023] Open
Abstract
Sarcopenia is an age-related condition of slow, progressive loss of muscle mass and strength, which contributes to frailty, increased risk of hospitalization and mortality, and increased health care costs. The incidence of sarcopenia is predicted to increase to >200 million affected older adults worldwide over the next 40 years, highlighting the urgency for understanding biological mechanisms and developing effective interventions. An understanding of the mechanisms underlying sarcopenia remains incomplete. Iron in the muscle is important for various metabolic functions, including oxygen supply and electron transfer during energy production, yet these same chemical properties of iron may be deleterious to the muscle when either in excess or when biochemically unshackled (eg, in ferroptosis), it can promote oxidative stress and induce inflammation. This review outlines the mechanisms leading to iron overload in muscle with aging and evaluates the evidence for the iron overload hypothesis of sarcopenia. Based on current evidence, studies are needed to (a) determine the mechanisms leading to iron overload in skeletal muscle during aging; and (b) investigate whether skeletal muscles are functionally deficient in iron during aging leading to impairments in oxidative metabolism.
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Affiliation(s)
- Francesca M Alves
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Victoria, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
| | - René Koopman
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Victoria, Australia
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4
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Zinc in Cognitive Impairment and Aging. Biomolecules 2022; 12:biom12071000. [PMID: 35883555 PMCID: PMC9312494 DOI: 10.3390/biom12071000] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 02/05/2023] Open
Abstract
Zinc, an essential micronutrient for life, was first discovered in 1869 and later found to be indispensable for the normal development of plants and for the normal growth of rats and birds. Zinc plays an important role in many physiological and pathological processes in normal mammalian brain development, especially in the development of the central nervous system. Zinc deficiency can lead to neurodegenerative diseases, mental abnormalities, sleep disorders, tumors, vascular diseases, and other pathological conditions, which can cause cognitive impairment and premature aging. This study aimed to review the important effects of zinc and zinc-associated proteins in cognitive impairment and aging, to reveal its molecular mechanism, and to highlight potential interventions for zinc-associated aging and cognitive impairments.
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Interplay between Zn2+ Homeostasis and Mitochondrial Functions in Cardiovascular Diseases and Heart Ageing. Int J Mol Sci 2022; 23:ijms23136890. [PMID: 35805904 PMCID: PMC9266371 DOI: 10.3390/ijms23136890] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 02/04/2023] Open
Abstract
Zinc plays an important role in cardiomyocytes, where it exists in bound and histochemically reactive labile Zn2+ forms. Although Zn2+ concentration is under tight control through several Zn2+-transporters, its concentration and intracellular distribution may vary during normal cardiac function and pathological conditions, when the protein levels and efficacy of Zn2+ transporters can lead to zinc re-distribution among organelles in cardiomyocytes. Such dysregulation of cellular Zn2+ homeostasis leads to mitochondrial and ER stresses, and interrupts normal ER/mitochondria cross-talk and mitophagy, which subsequently, result in increased ROS production and dysregulated metabolic function. Besides cardiac structural and functional defects, insufficient Zn2+ supply was associated with heart development abnormalities, induction and progression of cardiovascular diseases, resulting in accelerated cardiac ageing. In the present review, we summarize the recently identified connections between cellular and mitochondrial Zn2+ homeostasis, ER stress and mitophagy in heart development, excitation–contraction coupling, heart failure and ischemia/reperfusion injury. Additionally, we discuss the role of Zn2+ in accelerated heart ageing and ageing-associated rise of mitochondrial ROS and cardiomyocyte dysfunction.
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Murata K, Namisaki T, Fujimoto Y, Takeda S, Enomoto M, Takaya H, Tsuji Y, Shibamoto A, Suzuki J, Kubo T, Iwai S, Tomooka F, Tanaka M, Kaneko M, Asada S, Koizumi A, Yorioka N, Matsuda T, Ozutsumi T, Ishida K, Ogawa H, Takagi H, Fujinaga Y, Furukawa M, Sawada Y, Nishimura N, Kitagawa K, Sato S, Kaji K, Inoue T, Asada K, Kawaratani H, Moriya K, Akahane T, Mitoro A, Yoshiji H. Clinical Significance of Serum Zinc Levels on the Development of Sarcopenia in Cirrhotic Patients. CANCER DIAGNOSIS & PROGNOSIS 2022; 2:184-193. [PMID: 35399181 PMCID: PMC8962814 DOI: 10.21873/cdp.10093] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 01/12/2022] [Indexed: 06/14/2023]
Abstract
BACKGROUND/AIM Sarcopenia increases the mortality in patients with cirrhosis. Approximately 60% of zinc is accumulated in skeletal muscle. We aimed to determine the role of subclinical zinc deficiency on sarcopenia development in patients with cirrhosis. PATIENTS AND METHODS We enrolled 151 patients with cirrhosis and divided them into the group with normal serum zinc levels (Group N: 80-130 μg/dl; n=38) and group with subclinical zinc deficiency (Group D: <80 μg/dl; n=113). The risk factors for sarcopenia were then investigated. RESULTS Group D had more sarcopenia cases than Group N (31.0% vs. 13.2%). In group D, HGS exhibited a weakly positive but significant correlation with serum zinc levels (R=0.287, p=0.00212), serum zinc levels negatively correlated with both ammonia and myostatin levels (R=-0.254, p=0.0078; R=-0.33, p<0.01), and low zinc levels were independently associated with sarcopenia development. CONCLUSION Patients with cirrhosis showing subclinical zinc deficiency have a significantly higher risk of developing sarcopenia.
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Affiliation(s)
- Koji Murata
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Tadashi Namisaki
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yuki Fujimoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Soichi Takeda
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Masahide Enomoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hiroaki Takaya
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yuki Tsuji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Akihiko Shibamoto
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Junya Suzuki
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takahiro Kubo
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Satoshi Iwai
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Fumimasa Tomooka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Misako Tanaka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Miki Kaneko
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Shohei Asada
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Aritoshi Koizumi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Nobuyuki Yorioka
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takuya Matsuda
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takahiro Ozutsumi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Koji Ishida
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hiroyuki Ogawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hirotetsu Takagi
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yukihisa Fujinaga
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Masanori Furukawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Yasuhiko Sawada
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Norihisa Nishimura
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Koh Kitagawa
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Shinya Sato
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Kosuke Kaji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takashi Inoue
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Japan
| | - Kiyoshi Asada
- Institute for Clinical and Translational Science, Nara Medical University Hospital, Kashihara, Japan
| | - Hideto Kawaratani
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Kei Moriya
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Takemi Akahane
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Akira Mitoro
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
| | - Hitoshi Yoshiji
- Department of Gastroenterology of Nara Medical University, Kashihara, Japan
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7
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Liu J, Xu C, Yu X, Zuo Q. Expression profiles of SLC39A/ZIP7, ZIP8 and ZIP14 in response to exercise-induced skeletal muscle damage. J Trace Elem Med Biol 2021; 67:126784. [PMID: 34015658 DOI: 10.1016/j.jtemb.2021.126784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 03/31/2021] [Accepted: 05/10/2021] [Indexed: 11/17/2022]
Abstract
BACKGROUND Zinc transporters are thought to facilitate the mobilization of zinc (Zn) and the role of Zn as a signaling mediator during cellular events. Little is known about the response of Zn movement and zinc transporters during muscle proliferation and differentiation processes after damage. METHODS After rats were subjected to one 90-min session of downhill running to cause muscle damage, the gastrocnemius muscles were harvested to assess the expression of zinc transporters SLC39A/ZIP7, ZIP8, ZIP14 and myogenic regulatory factors at the 0 h, 6 h, 12 h, 1 d, 2 d, 3 d, 1 w and 2 w time points after exercise. RESULTS SLC39A/ZIP7, ZIP8 and ZIP14 had translocated to different compartments of the cell following damage, and they exhibited differential expression profiles after eccentric exercise. The results regarding the myogenetic regulators showed that nf-κb was upregulated 2 d after exercise, and STAT3 and Akt1 mRNA levels were mostly expressed 2 w after exercise. The upregulation of phosphatidylinositol 3-kinase, catalytic subunit gamma (pik3cg), erk1 and erk2 mostly occurred at the early stage (6 h or 12 h) after exercise. In addition, we found that zip7, zip8 and zip14 expression was moderately correlated with certain markers of muscle regeneration. CONCLUSION The zinc transporters SLC39A/ZIP7, ZIP8 and ZIP14 have differential expression profiles upon eccentric exercise, and they might regulate muscle proliferation or differentiation processes through different cellular pathways after exercise-induced muscle damage.
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Affiliation(s)
- Jingyun Liu
- Shanghai University of Sport, Shanghai, 200438, China
| | - Chang Xu
- Shanghai University of Sport, Shanghai, 200438, China
| | - Xinkai Yu
- Shanghai University of Sport, Shanghai, 200438, China
| | - Qun Zuo
- Shanghai University of Sport, Shanghai, 200438, China.
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8
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Jackson TW, Ryherd GL, Scheibly CM, Sasser AL, Guillette TC, Belcher SM. Gestational Cd Exposure in the CD-1 Mouse Induces Sex-Specific Hepatic Insulin Insensitivity, Obesity, and Metabolic Syndrome in Adult Female Offspring. Toxicol Sci 2021; 178:264-280. [PMID: 33259630 DOI: 10.1093/toxsci/kfaa154] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
There is compelling evidence that developmental exposure to toxic metals increases risk for obesity and obesity-related morbidity including cardiovascular disease and type 2 diabetes. To explore the hypothesis that developmental Cd exposure increases risk of obesity later in life, male, and female CD-1 mice were maternally exposed to 500 ppb CdCl2 in drinking water during a human gestational equivalent period (gestational day 0-postnatal day 10 [GD0-PND10]). Hallmark indicators of metabolic disruption, hepatic steatosis, and metabolic syndrome were evaluated prior to birth through adulthood. Maternal blood Cd levels were similar to those observed in human pregnancy cohorts, and Cd was undetected in adult offspring. There were no observed impacts of exposure on dams or pregnancy-related outcomes. Results of glucose and insulin tolerance testing revealed that Cd exposure impaired offspring glucose homeostasis on PND42. Exposure-related increases in circulating triglycerides and hepatic steatosis were apparent only in females. By PND120, Cd-exposed females were 30% heavier with 700% more perigonadal fat than unexposed control females. There was no evidence of dyslipidemia, steatosis, increased weight gain, nor increased adiposity in Cd-exposed male offspring. Hepatic transcriptome analysis on PND1, PND21, and PND42 revealed evidence for female-specific increases in oxidative stress and mitochondrial dysfunction with significant early disruption of retinoic acid signaling and altered insulin receptor signaling consistent with hepatic insulin sensitivity in adult females. The observed steatosis and metabolic syndrome-like phenotypes resulting from exposure to 500 ppb CdCl2 during the pre- and perinatal period of development equivalent to human gestation indicate that Cd acts developmentally as a sex-specific delayed obesogen.
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Affiliation(s)
- Thomas W Jackson
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
| | - Garret L Ryherd
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
| | - Chris M Scheibly
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
| | - Aubrey L Sasser
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
| | - T C Guillette
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
| | - Scott M Belcher
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, North Carolina 27695
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Huang Y, Wu B, Shen D, Chen J, Yu Z, Chen C. Ferroptosis in a sarcopenia model of senescence accelerated mouse prone 8 (SAMP8). Int J Biol Sci 2021; 17:151-162. [PMID: 33390840 PMCID: PMC7757032 DOI: 10.7150/ijbs.53126] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 11/01/2020] [Indexed: 12/20/2022] Open
Abstract
As a systemic syndrome characterized by age-associated degenerative skeletal muscle atrophy, sarcopenia leads to a risk of adverse outcomes in the elderly. Age-related iron accumulation is found in the muscles of sarcopenia animal models and patients, but the role of iron in sarcopenia remains poorly understood. It has been recently found that iron overload in several diseases is involved in ferroptosis, an iron- dependent form of programmed cell death. However, whether this excess iron can result in ferroptosis in muscles is still unclear. In our present study, we found that ferric citrate induced ferroptosis in C2C12 cells, as well as impaired their differentiation from myoblasts to myotubes. Due to the decreased muscle mass and fiber size, 40-week-old senescence accelerated mouse prone 8 (SAMP8) mice were used as a sarcopenia model, in whose muscles the iron content and markers of ferroptosis were found to increase, compared to 8-week- old SAMP8 controls. Moreover, our results showed that iron overload upregulated the expression of P53, which subsequently repressed the protein level of Slc7a11 (solute carrier family 7, member 11), a known ferroptosis-related gene. The downregulation of Slc7a11 then induced the ferroptosis of muscle cells through the accumulation of lipid peroxidation products, which may be one of the causes of sarcopenia. The findings in this study indicate that iron plays a key role in triggering P53- Slc7a11-mediated ferroptosis in muscles, and suggest that targeting iron accumulation and ferroptosis might be a therapeutic strategy for treating sarcopenia.
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Affiliation(s)
- Yan Huang
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Beiling Wu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Dingzhu Shen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Jiulin Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Zhihua Yu
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
| | - Chuan Chen
- Shanghai Geriatric Institute of Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200031, People's Republic of China
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Kim J, Aydemir TB, Jimenez-Rondan FR, Ruggiero CH, Kim MH, Cousins RJ. Deletion of metal transporter Zip14 (Slc39a14) produces skeletal muscle wasting, endotoxemia, Mef2c activation and induction of miR-675 and Hspb7. Sci Rep 2020; 10:4050. [PMID: 32132660 PMCID: PMC7055249 DOI: 10.1038/s41598-020-61059-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Accepted: 02/18/2020] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle represents the largest pool of body zinc, however, little is known about muscle zinc homeostasis or muscle-specific zinc functions. Zip14 (Slc39a14) was the most highly expressed zinc transporter in skeletal muscle of mice in response to LPS-induced inflammation. We compared metabolic parameters of skeletal muscle from global Zip14 knockout (KO) and wild-type mice (WT). At basal steady state Zip14 KO mice exhibited a phenotype that included muscle wasting and metabolic endotoxemia. Microarray and qPCR analysis of gastrocnemius muscle RNA revealed that ablation of Zip14 produced increased muscle p-Mef2c, Hspb7 and miR-675-5p expression and increased p38 activation. ChIP assays showed enhanced binding of NF-[Formula: see text] to the Mef2c promoter. In contrast, LPS-induced systemic inflammation enhanced Zip14-dependent zinc uptake by muscle, increased expression of Atrogin1 and MuRF1 and markedly reduced MyoD. These signatures of muscle atrophy and cachexia were not influenced by Zip14 ablation, however. LPS-induced miR-675-3p and -5p expression was Zip14-dependent. Collectively, these results with an integrative model are consistent with a Zip14 function in skeletal muscle at steady state that supports myogenesis through suppression of metabolic endotoxemia and that Zip14 ablation coincides with sustained activity of phosphorylated components of signaling pathways including p-Mef2c, which causes Hspb7-dependent muscle wasting.
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Affiliation(s)
- Jinhee Kim
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA
- Rutgers Medical School, Newark, NJ, USA
| | - Tolunay Beker Aydemir
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA
- Cornell University, Ithaca, NY, USA
| | - Felix R Jimenez-Rondan
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - Courtney H Ruggiero
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA
| | - Min-Hyun Kim
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA
- University of Michigan, Ann Arbor, MI, USA
| | - Robert J Cousins
- Food Science and Human Nutrition Department, Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, 32611, USA.
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11
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Routhe LJ, Andersen IK, Hauerslev LV, Issa II, Moos T, Thomsen MS. Astrocytic expression of ZIP14 (SLC39A14) is part of the inflammatory reaction in chronic neurodegeneration with iron overload. Glia 2020; 68:1810-1823. [DOI: 10.1002/glia.23806] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 01/17/2020] [Accepted: 02/12/2020] [Indexed: 12/18/2022]
Affiliation(s)
- Lisa J. Routhe
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
| | - Ida K. Andersen
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
| | - Lissa V. Hauerslev
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
| | - Issa I. Issa
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
| | - Torben Moos
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
| | - Maj S. Thomsen
- Laboratory of Neurobiology, Department of Health Science and TechnologyAalborg University Aalborg Denmark
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12
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Zinc Homeostasis in Bone: Zinc Transporters and Bone Diseases. Int J Mol Sci 2020; 21:ijms21041236. [PMID: 32059605 PMCID: PMC7072862 DOI: 10.3390/ijms21041236] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 02/02/2020] [Accepted: 02/04/2020] [Indexed: 12/18/2022] Open
Abstract
Zinc is an essential micronutrient that plays critical roles in numerous physiological processes, including bone homeostasis. The majority of zinc in the human body is stored in bone. Zinc is not only a component of bone but also an essential cofactor of many proteins involved in microstructural stability and bone remodeling. There are two types of membrane zinc transporter proteins identified in mammals: the Zrt- and Irt-like protein (ZIP) family and the zinc transporter (ZnT) family. They regulate the influx and efflux of zinc, accounting for the transport of zinc through cellular and intracellular membranes to maintain zinc homeostasis in the cytoplasm and in intracellular compartments, respectively. Abnormal function of certain zinc transporters is associated with an imbalance of bone homeostasis, which may contribute to human bone diseases. Here, we summarize the regulatory roles of zinc transporters in different cell types and the mechanisms underlying related pathological changes involved in bone diseases. We also present perspectives for further studies on bone homeostasis-regulating zinc transporters.
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Mitochondria-Targeting Antioxidant Provides Cardioprotection through Regulation of Cytosolic and Mitochondrial Zn 2+ Levels with Re-Distribution of Zn 2+-Transporters in Aged Rat Cardiomyocytes. Int J Mol Sci 2019; 20:ijms20153783. [PMID: 31382470 PMCID: PMC6695787 DOI: 10.3390/ijms20153783] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 06/12/2019] [Accepted: 06/17/2019] [Indexed: 12/29/2022] Open
Abstract
Aging is an important risk factor for cardiac dysfunction. Heart during aging exhibits a depressed mechanical activity, at least, through mitochondria-originated increases in ROS. Previously, we also have shown a close relationship between increased ROS and cellular intracellular free Zn2+ ([Zn2+]i) in cardiomyocytes under pathological conditions as well as the contribution of some re-expressed levels of Zn2+-transporters for redistribution of [Zn2+]i among suborganelles. Therefore, we first examined the cellular (total) [Zn2+] and then determined the protein expression levels of Zn2+-transporters in freshly isolated ventricular cardiomyocytes from 24-month rat heart compared to those of 6-month rats. The [Zn2+]i in the aged-cardiomyocytes was increased, at most, due to increased ZIP7 and ZnT8 with decreased levels of ZIP8 and ZnT7. To examine redistribution of the cellular [Zn2+]i among suborganelles, such as Sarco/endoplasmic reticulum, S(E)R, and mitochondria ([Zn2+]SER and [Zn2+]Mit), a cell model (with galactose) to mimic the aged-cell in rat ventricular cell line H9c2 was used and demonstrated that there were significant increases in [Zn2+]Mit with decreases in [Zn2+]SER. In addition, the re-distribution of these Zn2+-transporters were markedly changed in mitochondria (increases in ZnT7 and ZnT8 with no changes in ZIP7 and ZIP8) and S(E)R (increase in ZIP7 and decrease in ZnT7 with no changes in both ZIP8 and ZnT8) both of them isolated from freshly isolated ventricular cardiomyocytes from aged-rats. Furthermore, we demonstrated that cellular levels of ROS, both total and mitochondrial lysine acetylation (K-Acetylation), and protein-thiol oxidation were significantly high in aged-cardiomyocytes from 24-month old rats. Using a mitochondrial-targeting antioxidant, MitoTEMPO (1 µM, 5-h incubation), we provided an important data associated with the role of mitochondrial-ROS production in the [Zn2+]i-dyshomeostasis of the ventricular cardiomyocytes from 24-month old rats. Overall, our present data, for the first time, demonstrated that a direct mitochondria-targeting antioxidant treatment can be a new therapeutic strategy during aging in the heart through a well-controlled [Zn2+] distribution among cytosol and suborganelles with altered expression levels of the Zn2+-transporters.
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Nishikawa H, Enomoto H, Yoh K, Iwata Y, Sakai Y, Kishino K, Ikeda N, Takashima T, Aizawa N, Takata R, Hasegawa K, Ishii N, Yuri Y, Nishimura T, Iijima H, Nishiguchi S. Serum Zinc Concentration and Sarcopenia: A Close Linkage in Chronic Liver Diseases. J Clin Med 2019; 8:jcm8030336. [PMID: 30862022 PMCID: PMC6462961 DOI: 10.3390/jcm8030336] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/07/2019] [Accepted: 03/07/2019] [Indexed: 12/17/2022] Open
Abstract
We sought to investigate the influence of serum zinc (Zn) concentration on sarcopenia in chronic liver diseases (CLDs, n = 372, median age = 65 years, 147 liver cirrhosis (LC) cases (39.5%)). Sarcopenia was defined by low grip strength and low skeletal muscle mass. Study subjects were divided into the following three groups (High-, Intermediate-, and Low-Zn groups) based on the baseline serum Zn level. The impacts of serum Zn concentration on sarcopenia were examined. The median (interquartile range) serum Zn concentration for all cases was 72.85 (63.7, 81.45) μg/dL. The proportions of sarcopenia in the High-Zn, Intermediate-Zn, and Low-Zn groups were 10.75% (10/93), 11.23% (21/187), and 27.17% (25/92), respectively (P = 0.9046 (High vs. Intermediate), P = 0.0007 (Intermediate vs. Low), P = 0.0044 (High vs. Low), overall P value = 0.0009). The median serum Zn concentrations in patients with sarcopenia, pre-sarcopenia, and control were 66.35, 73.1 and 73.8 μg/dL, respectively (P = 0.0234 (sarcopenia vs. pre-sarcopenia), P = 0.2116 (pre-sarcopenia vs. control), P = 0.0002 (sarcopenia vs. control), overall P value = 0.0016). In the multivariate analyses of factors linked to the presence of sarcopenia, Low-Zn was an independent predictor for all cases (P = 0.0236) and LC cases (P = 0.0082). In conclusion, Zn deficiency can be an independent predictor for sarcopenia in patients with CLDs.
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Affiliation(s)
- Hiroki Nishikawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Hirayuki Enomoto
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Kazunori Yoh
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Yoshinori Iwata
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Yoshiyuki Sakai
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Kyohei Kishino
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Naoto Ikeda
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Tomoyuki Takashima
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Nobuhiro Aizawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Ryo Takata
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Kunihiro Hasegawa
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Noriko Ishii
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Yukihisa Yuri
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Takashi Nishimura
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Hiroko Iijima
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
| | - Shuhei Nishiguchi
- Division of Hepatobiliary and Pancreatic Disease, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya 663-8501, Hyogo, Japan.
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Zhao G. Is Iron Accumulation a Possible Risk Factor for Sarcopenia? Biol Trace Elem Res 2018; 186:379-383. [PMID: 29623651 DOI: 10.1007/s12011-018-1332-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2018] [Accepted: 03/27/2018] [Indexed: 01/08/2023]
Abstract
Sarcopenia has a high incidence among the elderly, with significant negative effects on the quality of life. The pathogenesis of sarcopenia is complex, and many factors are involved in its development and progression. Sarcopenia might be associated with iron accumulation given that (1) age-related iron accumulation was found in the skeletal muscle, (2) excess iron could cause skeletal muscle damage or atrophy, and (3) patients with sarcopenia showed higher levels of serum ferritin. Understanding the etiology and pathogenesis of sarcopenia would help to develop new treatment and preventive methods, thereby improving the quality of life of the elderly patients.
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Affiliation(s)
- Guoyang Zhao
- Department of Orthopaedics, The Affiliated Hospital of Jiangsu University, Zhenjiang, 212000, China.
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Hendrickx G, Borra VM, Steenackers E, Yorgan TA, Hermans C, Boudin E, Waterval JJ, Jansen IDC, Aydemir TB, Kamerling N, Behets GJ, Plumeyer C, D’Haese PC, Busse B, Everts V, Lammens M, Mortier G, Cousins RJ, Schinke T, Stokroos RJ, Manni JJ, Van Hul W. Conditional mouse models support the role of SLC39A14 (ZIP14) in Hyperostosis Cranialis Interna and in bone homeostasis. PLoS Genet 2018; 14:e1007321. [PMID: 29621230 PMCID: PMC5903675 DOI: 10.1371/journal.pgen.1007321] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/17/2018] [Accepted: 03/19/2018] [Indexed: 01/19/2023] Open
Abstract
Hyperostosis Cranialis Interna (HCI) is a rare bone disorder characterized by progressive intracranial bone overgrowth at the skull. Here we identified by whole-exome sequencing a dominant mutation (L441R) in SLC39A14 (ZIP14). We show that L441R ZIP14 is no longer trafficked towards the plasma membrane and excessively accumulates intracellular zinc, resulting in hyper-activation of cAMP-CREB and NFAT signaling. Conditional knock-in mice overexpressing L438R Zip14 in osteoblasts have a severe skeletal phenotype marked by a drastic increase in cortical thickness due to an enhanced endosteal bone formation, resembling the underlying pathology in HCI patients. Remarkably, L438R Zip14 also generates an osteoporotic trabecular bone phenotype. The effects of osteoblastic overexpression of L438R Zip14 therefore mimic the disparate actions of estrogen on cortical and trabecular bone through osteoblasts. Collectively, we reveal ZIP14 as a novel regulator of bone homeostasis, and that manipulating ZIP14 might be a therapeutic strategy for bone diseases.
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Affiliation(s)
- Gretl Hendrickx
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
| | - Vere M. Borra
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
| | - Ellen Steenackers
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
| | - Timur A. Yorgan
- Department of Osteology and Biomechanics (IOBM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christophe Hermans
- Center for Oncological Research Antwerp (CORE), University of Antwerp, Antwerp, Belgium
| | - Eveline Boudin
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
| | - Jérôme J. Waterval
- Department of Otorhinolaryngology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ineke D. C. Jansen
- Department of Periodontology and Oral Cell Biology, Academic Center of Dentistry Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Tolunay Beker Aydemir
- Food Science and Human Nutrition Department and Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, United States of America
| | - Niels Kamerling
- Department of Neurosurgery, University Hospital Antwerp, Antwerp, Belgium
| | - Geert J. Behets
- Department of Pathophysiology, University of Antwerp, Antwerp, Belgium
| | - Christine Plumeyer
- Department of Osteology and Biomechanics (IOBM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Björn Busse
- Department of Osteology and Biomechanics (IOBM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Vincent Everts
- Department of Periodontology and Oral Cell Biology, Academic Center of Dentistry Amsterdam and VU University Amsterdam, Amsterdam, The Netherlands
| | - Martin Lammens
- Department of Pathological Anatomy, University Hospital Antwerp, Antwerp, Belgium
| | - Geert Mortier
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
| | - Robert J. Cousins
- Food Science and Human Nutrition Department and Center for Nutritional Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville, FL, United States of America
| | - Thorsten Schinke
- Department of Osteology and Biomechanics (IOBM), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Robert J. Stokroos
- Department of Otorhinolaryngology and Head & Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Johannes J. Manni
- Department of Otorhinolaryngology and Head & Neck Surgery, Maastricht University Medical Center, Maastricht, The Netherlands
| | - Wim Van Hul
- Center of Medical Genetics, University and University Hospital of Antwerp, Antwerp, Belgium
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Sasaki S, Tsukamoto M, Saito M, Hojyo S, Fukada T, Takami M, Furuichi T. Disruption of the mouse Slc39a14 gene encoding zinc transporter ZIP14 is associated with decreased bone mass, likely caused by enhanced bone resorption. FEBS Open Bio 2018; 8:655-663. [PMID: 29632817 PMCID: PMC5881542 DOI: 10.1002/2211-5463.12399] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2017] [Revised: 01/29/2018] [Accepted: 01/30/2018] [Indexed: 11/28/2022] Open
Abstract
Osteoclasts are bone‐resorbing cells that play an essential role in maintaining bone homeostasis. Zinc (Zn) has been reported to inhibit osteoclast‐mediated bone resorption, but the mechanism of this action has not been clarified. Zn homeostasis is tightly controlled by the coordinated actions of many Zn transporters. The Zn transporter ZIP14/Slc39a14 is involved in various physiological functions; hence, Zip14‐knockout (KO) mice exhibit multiple phenotypes. In this study, we thoroughly investigated the bone phenotypes of Zip14‐KO mice, demonstrating that the KO mice exhibited osteopenia in both trabecular and cortical bones. In Zip14‐KO mice, bone resorption was increased, whereas the bone formation rate was unchanged. Zip14mRNA was expressed in normal osteoclasts both in vivo and in vitro, but receptor activator of NF‐κB ligand (RANKL)‐induced osteoclastogenesis was not impaired in bone marrow‐derived macrophages prepared from Zip14‐KO mice. These results suggest that ZIP14 regulates bone homeostasis by inhibiting bore resorption and that in Zip14‐KO mice, bone resorption is increased due to the elimination of this inhibitory regulation. Further studies are necessary to conclude whether the enhancement of bone resorption in Zip14‐KO mice is due to a cell‐autonomous or a non‐cell‐autonomous osteoclast defect.
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Affiliation(s)
- Sun Sasaki
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan
| | - Manami Tsukamoto
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan
| | - Masaki Saito
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan
| | - Shintaro Hojyo
- Osteoimmunology, Deutsches Rheuma-Forschungszentrum, Berlin, Germany
| | - Toshiyuki Fukada
- Faculty of Pharmaceutical Sciences, Tokushima Bunri University, okushima, Japan.,Department of Pathology, School of Dentistry, Showa University, Tokyo, Japan.,RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Masamichi Takami
- Department of Pharmacology, School of Dentistry, Showa University, Tokyo, Japan
| | - Tatsuya Furuichi
- Laboratory of Laboratory Animal Science and Medicine, Co-Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Japan.,Department of Basic Veterinary Science, United Graduate School of Veterinary Science, Gifu University, Gifu, Japan
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18
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Role of Zinc Homeostasis in the Pathogenesis of Diabetes and Obesity. Int J Mol Sci 2018; 19:ijms19020476. [PMID: 29415457 PMCID: PMC5855698 DOI: 10.3390/ijms19020476] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 01/30/2018] [Accepted: 02/02/2018] [Indexed: 12/11/2022] Open
Abstract
Zinc deficiency is a risk factor for obesity and diabetes. However, until recently, the underlying molecular mechanisms remained unclear. The breakthrough discovery that the common polymorphism in zinc transporter SLC30A8/ZnT8 may increase susceptibility to type 2 diabetes provided novel insights into the role of zinc in diabetes. Our group and others showed that altered ZnT8 function may be involved in the pathogenesis of type 2 diabetes, indicating that the precise control of zinc homeostasis is crucial for maintaining health and preventing various diseases, including lifestyle-associated diseases. Recently, the role of the zinc transporter ZIP13 in the regulation of beige adipocyte biogenesis was clarified, which indicated zinc homeostasis regulation as a possible therapeutic target for obesity and metabolic syndrome. Here we review advances in the role of zinc homeostasis in the pathophysiology of diabetes, and propose that inadequate zinc distribution may affect the onset of diabetes and metabolic diseases by regulating various critical biological events.
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19
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Aydemir TB, Cousins RJ. The Multiple Faces of the Metal Transporter ZIP14 (SLC39A14). J Nutr 2018; 148:174-184. [PMID: 29490098 PMCID: PMC6251594 DOI: 10.1093/jn/nxx041] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Accepted: 11/07/2017] [Indexed: 12/14/2022] Open
Abstract
The SLC39A family of metal transporters was identified through homologies with the Zrt- and Irt-like (ZIP) proteins from yeast and plants. Of all the ZIP transporters, ZIP14 is arguably the most robustly characterized in terms of function at the integrative level. Mice with a global knockout of Zip14 are viable, thus providing the opportunity to conduct physiologic experiments. In mice, Zip14 expression is highly tissue specific, with the greatest abundance in the jejunum > liver > heart > kidney > white adipose tissue > skeletal muscle > spleen > pancreas. A unique feature of Zip14 is its upregulation by proinflammatory conditions, particularly increased interleukin 6 (IL-6) and nitric oxide. The transcription factors AP-1, ATF4, and ATF6α are involved in Zip14 regulation. ZIP14 does not appear to be zinc-regulated. The Zip14 knockout phenotype shows multiple sites of ZIP14 function, including the liver, adipose tissue, brain, pancreas, and bone. A prominent feature of the Zip14 ablation is a reduction in intestinal barrier function and onset of metabolic endotoxemia. Many aspects of the phenotype are accentuated with age and accompany increased circulating IL-6. Studies with 65Zn, 59Fe [nontransferrin-bound iron (NTBI)] and 54Mn show that ZIP14 transports these metals. At a steady state, the plasma concentrations of zinc, NTBI, and manganese are such that zinc ions are the major substrate available for ZIP14 at the cell surface. Upregulation of ZIP14 accounts for the hypozincemia and hepatic zinc accumulation associated with acute inflammation and sepsis and is required for liver regeneration and resistance to endoplasmic reticulum (ER) stress. Zip14 ablation in mice produces a defect in manganese excretion that leads to excess manganese accumulation in the brain that produces characteristics of Parkinsonism.
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Affiliation(s)
- Tolunay B Aydemir
- Food Science and Human Nutrition Department and Center for Nutritional
Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville,
FL,Address correspondence to TBA (e-mail: )
| | - Robert J Cousins
- Food Science and Human Nutrition Department and Center for Nutritional
Sciences, College of Agricultural and Life Sciences, University of Florida, Gainesville,
FL
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Carraro U. Exciting perspectives for Translational Myology in the Abstracts of the 2018Spring PaduaMuscleDays: Giovanni Salviati Memorial - Chapter II - Abstracts of March 15, 2018. Eur J Transl Myol 2018; 28:7364. [PMID: 30057726 PMCID: PMC6047880 DOI: 10.4081/ejtm.2018.7364] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Accepted: 02/20/2018] [Indexed: 12/03/2022] Open
Abstract
Myologists working in Padua (Italy) were able to continue a half-century tradition of studies of skeletal muscles, that started with a research on fever, specifically if and how skeletal muscle contribute to it by burning bacterial toxin. Beside main publications in high-impact-factor journals by Padua myologists, I hope to convince readers (and myself) of the relevance of the editing Basic and Applied Myology (BAM), retitled from 2010 European Journal of Translational Myology (EJTM), of the institution of the Interdepartmental Research Center of Myology of the University of Padova (CIR-Myo), and of a long series of International Conferences organized in Euganei Hills and Padova, that is, the PaduaMuscleDays. The 2018Spring PaduaMuscleDays (2018SpPMD), were held in Euganei Hills and Padua (Italy), in March 14-17, and were dedicated to Giovanni Salviati. The main event of the "Giovanni Salviati Memorial", was held in the Aula Guariento, Accademia Galileiana di Scienze, Lettere ed Arti of Padua to honor a beloved friend and excellent scientist 20 years after his premature passing. Using the words of Prof. Nicola Rizzuto, we all share his believe that Giovanni "will be remembered not only for his talent and originality as a biochemist, but also for his unassuming and humanistic personality, a rare quality in highly successful people like Giovanni. The best way to remember such a person is to gather pupils and colleagues, who shared with him the same scientific interests and ask them to discuss recent advances in their own fields, just as Giovanni have liked to do". Since Giovanni's friends sent many abstracts still influenced by their previous collaboration with him, all the Sessions of the 2018SpPMD reflect both to the research aims of Giovanni Salviati and the traditional topics of the PaduaMuscleDays, that is, basics and applications of physical, molecular and cellular strategies to maintain or recover functions of skeletal muscles. The translational researches summarized in the 2018SpPMD Abstracts are at the appropriate high level to attract approval of Ethical Committees, the interest of International Granting Agencies and approval for publication in top quality, international journals. In this chapter II are listed the abstracts of the March 15, 2018 Padua Muscle Day. All 2018SpPMD Abstracts are indexed at the end of the Chapter IV.
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Affiliation(s)
- Ugo Carraro
- Laboratory of Translational Myology, Department of Biomedical Sciences, University of Padova
- A&C M-C Foundation for Translational Myology, Padova
- IRCCS Fondazione Ospedale San Camillo, Venezia-Lido, Italy
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21
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Pette D. What Can be Learned from the Time Course of Changes in Low-Frequency Stimulated Muscle? Eur J Transl Myol 2017; 27:6723. [PMID: 28713537 PMCID: PMC5505094 DOI: 10.4081/ejtm.2017.6723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Not available.
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Affiliation(s)
- Dirk Pette
- Department of Biology, University of Konstanz, Germany
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