51
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Pandrangi SL, Chittineedi P, Chikati R, Lingareddy JR, Nagoor M, Ponnada SK. Role of dietary iron revisited: in metabolism, ferroptosis and pathophysiology of cancer. Am J Cancer Res 2022; 12:974-985. [PMID: 35411219 PMCID: PMC8984875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 02/10/2022] [Indexed: 06/14/2023] Open
Abstract
Iron is the most abundant metal in the human body. No independent life forms on earth can survive without iron. However, excess iron is closely associated with carcinogenesis by increasing oxidative stress via its catalytic activity to generate hydroxyl radicals. Therefore, it is speculated that iron might play a dual role in cells, by both stimulating cell growth and causing cell death. Dietary iron is absorbed by the intestinal enterocytes in the form of ferrous ion which forms cLIP. Excess iron stored in the form of Ferritin serves as a reservoir under iron depletion conditions. Ferroptosis, is an iron-dependent non-mutational form of cell death process and is suppressed by iron-binding compounds such as deferoxamine. Blocking transferrin-mediated iron import or recycling of iron-containing storage proteins (i.e., ferritin) also attenuates ferroptosis, consistent with the iron-dependent nature of this process. Unsurprisingly, ferroptosis also plays a role in the development of cancer and maybe a beneficial strategy for anticancer treatment. Different lines of evidence suggest that ferroptosis plays a crucial role in the suppression of tumorigenesis. In this review, we have discussed the pros and cons of iron accumulation, utilization and, its role in cell proliferation, ferroptosis and pathophysiology of cancer.
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Affiliation(s)
- Santhi Latha Pandrangi
- Onco-Stem Cell Research Laboratory, Department of Biochemistry and Bioinformatics, Institute of Science, GITAM (Deemed to be) UniversityVisakhapatnam 530045, India
| | - Prasanthi Chittineedi
- Onco-Stem Cell Research Laboratory, Department of Biochemistry and Bioinformatics, Institute of Science, GITAM (Deemed to be) UniversityVisakhapatnam 530045, India
| | | | - Joji Reddy Lingareddy
- Department of Biotechnology, Loyola AcademyOld Alwal, Secunderabad, Telangana 500010, India
| | | | - Suresh Kumar Ponnada
- Department of Biotechnology, Loyola AcademyOld Alwal, Secunderabad, Telangana 500010, India
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52
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Karim A, Bajbouj K, Shafarin J, Qaisar R, Hall AC, Hamad M. Iron Overload Induces Oxidative Stress, Cell Cycle Arrest and Apoptosis in Chondrocytes. Front Cell Dev Biol 2022; 10:821014. [PMID: 35252185 PMCID: PMC8894434 DOI: 10.3389/fcell.2022.821014] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/31/2022] [Indexed: 12/13/2022] Open
Abstract
Clinical and experimental evidence point to the presence of considerable links between arthropathy, osteoarthritis (OA) in particular, and iron overload possibly due to oxidative stress and tissue damage. However, the specific cellular targets of iron overload-related oxidative stress in OA remain ambiguous. We examined the effects of iron overload on chondrocyte health using the C-20/A4 chondrocyte cell line. Cells were treated with increasing concentrations of ferric ammonium citrate (FAC) to mimic iron overload in vitro. Treated cells were assessed for cell viability, cycling, apoptosis, collagen II synthesis, and oxidative stress along with cellular iron content and the expression of key iron regulatory genes. FAC treatment resulted in an increase in ferritin expression and a significant decrease in the expression of hepcidin, ferroportin, transferrin receptors 1 (TfR1) and TfR2. Increased labile iron content was also evident, especially in cells treated with high FAC at 24 h. High doses of FAC treatment also induced higher levels of reactive oxygen species, reduced collagen II production, disrupted cell cycle and higher cell death as compared with untreated controls. In conclusion, findings presented here demonstrate that iron overload disrupts cellular iron homeostasis, which compromises the functional integrity of chondrocytes and leads to oxidative stress and apoptosis.
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Affiliation(s)
- Asima Karim
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- *Correspondence: Asima Karim, ; Mawieh Hamad,
| | - Khuloud Bajbouj
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Jasmin Shafarin
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
| | - Rizwan Qaisar
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Andrew C. Hall
- Edinburgh Medical School, Biomedical Sciences, College of Medicine and Veterinary Medicine, The University of Edinburgh, Edinburgh, United Kingdom
| | - Mawieh Hamad
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah, United Arab Emirates
- Department of Medical Laboratory Sciences, College of Health Sciences, University of Sharjah, Sharjah, United Arab Emirates
- *Correspondence: Asima Karim, ; Mawieh Hamad,
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53
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Hong M, Rong J, Tao X, Xu Y. The Emerging Role of Ferroptosis in Cardiovascular Diseases. Front Pharmacol 2022; 13:822083. [PMID: 35153792 PMCID: PMC8826236 DOI: 10.3389/fphar.2022.822083] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/06/2022] [Indexed: 01/31/2023] Open
Abstract
Ferroptosis is one type of programmed cell death discovered in recent years, which is characterized by iron-dependent lipid peroxidation and participating in iron, lipid and antioxidant metabolism. Ferroptosis is different from the traditional cell death types such as apoptosis, necroptosis and autophagy in morphology, biochemistry and genetics. Cardiovascular diseases are considered as an important cause of death from non-communicable diseases in the global population and poses a serious threat to human health. Apoptosis has long been thought to be the major type of cardiomyocyte death, but now ferroptosis has been shown to play a major role in cardiovascular diseases as well. This review will discuss related issues such as the mechanisms of ferroptosis and its effects on the occurrence and development of cardiovascular diseases, aiming to provide a novel target for the prevention and treatment of cardiovascular diseases.
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Affiliation(s)
- Min Hong
- School of Medicine, Zhejiang University, Hangzhou, China
| | - Jiabing Rong
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xinran Tao
- Department of Cardiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yinchuan Xu
- Department of Cardiology, Second Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
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54
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Iron–sulfur clusters as inhibitors and catalysts of viral replication. Nat Chem 2022; 14:253-266. [DOI: 10.1038/s41557-021-00882-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 12/15/2021] [Indexed: 12/11/2022]
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55
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Votava JA, Reese SR, Deck KM, Nizzi CP, Anderson SA, Djamali A, Eisenstein RS. Dysregulation of the sensory and regulatory pathways controlling cellular iron metabolism in unilateral obstructive nephropathy. Am J Physiol Renal Physiol 2022; 322:F89-F103. [PMID: 34843656 PMCID: PMC8742730 DOI: 10.1152/ajprenal.00537.2020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/16/2021] [Accepted: 11/23/2021] [Indexed: 01/03/2023] Open
Abstract
Chronic kidney disease involves disturbances in iron metabolism including anemia caused by insufficient erythropoietin (EPO) production. However, underlying mechanisms responsible for the dysregulation of cellular iron metabolism are incompletely defined. Using the unilateral ureteral obstruction (UUO) model in Irp1+/+ and Irp1-/- mice, we asked if iron regulatory proteins (IRPs), the central regulators of cellular iron metabolism and suppressors of EPO production, contribute to the etiology of anemia in kidney failure. We identified a significant reduction in IRP protein level and RNA binding activity that associates with a loss of the iron uptake protein transferrin receptor 1 (TfR1), increased expression of the iron storage protein subunits H- and L-ferritin, and a low but overall variable level of stainable iron in the obstructed kidney. This reduction in IRP RNA binding activity and ferritin RNA levels suggests the concomitant rise in ferritin expression and iron content in kidney failure is IRP dependent. In contrast, the reduction in the Epo mRNA level in the obstructed kidney was not rescued by genetic ablation of IRP1, suggesting disruption of normal hypoxia-inducible factor (HIF)-2α regulation. Furthermore, reduced expression of some HIF-α target genes in UUO occurred in the face of increased expression of HIF-α proteins and prolyl hydroxylases 2 and 1, the latter of which is not known to be HIF-α mediated. Our results suggest that the IRP system drives changes in cellular iron metabolism that are associated with kidney failure in UUO but that the impact of IRPs on EPO production is overridden by disrupted hypoxia signaling.NEW & NOTEWORTHY This study demonstrates that iron metabolism and hypoxia signaling are dysregulated in unilateral obstructive nephropathy. Expression of iron regulatory proteins (IRPs), central regulators of cellular iron metabolism, and the iron uptake (transferrin receptor 1) and storage (ferritins) proteins they target is strongly altered. This suggests a role of IRPs in previously observed changes in iron metabolism in progressive renal disease. Hypoxia signaling is disrupted and appeared to dominate the action of IRP1 in controlling erythropoietin expression.
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Affiliation(s)
- James A Votava
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Shannon R Reese
- Division of Nephrology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin
| | - Kathryn M Deck
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Christopher P Nizzi
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Sheila A Anderson
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
| | - Arjang Djamali
- Division of Nephrology, Department of Medicine, University of Wisconsin-Madison, Madison, Wisconsin
- Division of Transplant, Department of Surgery, University of Wisconsin-Madison, Madison, Wisconsin
| | - Richard S Eisenstein
- Department of Nutritional Sciences, University of Wisconsin-Madison, Madison, Wisconsin
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, Wisconsin
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Abstract
Trace elements, such as iodine and selenium (Se), are vital to human health and play an essential role in metabolism. They are also important to thyroid metabolism and function, and correlate with thyroid autoimmunity and tumors. Other minerals such as iron (Ir), lithium (Li), copper (Co), zinc (Zn), manganese (Mn), magnesium (Mg), cadmium (Cd), and molybdenum (Mo), may related to thyroid function and disease. Normal thyroid function depends on a variety of trace elements for thyroid hormone synthesis and metabolism. These trace elements interact with each other and are in a dynamic balance. However, this balance may be disturbed by the excess or deficiency of one or more elements, leading to abnormal thyroid function and the promotion of autoimmune thyroid diseases and thyroid tumors.The relationship between trace elements and thyroid disorders is still unclear, and further research is needed to clarify this issue and improve our understanding of how trace elements mediate thyroid function and metabolism. This paper systematically reviewed recently published literature on the relationship between various trace elements and thyroid function to provide a preliminary theoretical basis for future research.
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Affiliation(s)
- Qing Zhou
- Department of Thyroid Surgery, General Surgery Center, The Hospital of Jilin University, Changchun, China
| | - Shuai Xue
- Department of Thyroid Surgery, General Surgery Center, The Hospital of Jilin University, Changchun, China
- *Correspondence: Shuai Xue, ; Guang Chen,
| | - Li Zhang
- Department of Nephrology, The Hospital of Jilin University, Changchun, China
| | - Guang Chen
- Department of Thyroid Surgery, General Surgery Center, The Hospital of Jilin University, Changchun, China
- *Correspondence: Shuai Xue, ; Guang Chen,
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57
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Guo Q, Li L, Hou S, Yuan Z, Li C, Zhang W, Zheng L, Li X. The Role of Iron in Cancer Progression. Front Oncol 2021; 11:778492. [PMID: 34858857 PMCID: PMC8631356 DOI: 10.3389/fonc.2021.778492] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 10/15/2021] [Indexed: 01/19/2023] Open
Abstract
Iron is an essential trace element for the human body, and its deficiency or excess can induce a variety of biological processes. Plenty of evidences have shown that iron metabolism is closely related to the occurrence and development of tumors. In addition, iron plays an important role in cell death, which is very important for the development of potential strategies for tumor treatment. Here, we reviewed the latest research about iron metabolism disorders in various types of tumors, the functions and properties of iron in ferroptosis and ferritinophagy, and new opportunities for iron-based on treatment methods for tumors, providing more information regarding the prevention and treatment of tumors.
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Affiliation(s)
- Qianqian Guo
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Liwen Li
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shanshan Hou
- Department of Pharmacy, Zhejiang Pharmaceutical College, Ningbo, China
| | - Ziqiao Yuan
- School of Pharmaceutical Sciences, Zhengzhou University, Zhengzhou, China
| | - Chenhui Li
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Wenzhou Zhang
- Department of Pharmacy, Affiliated Cancer Hospital of Zhengzhou University, Henan Cancer Hospital, Zhengzhou, China
| | - Lufeng Zheng
- School of Life Science and Technology, Jiangsu Key Laboratory of Carcinogenesis and Intervention, School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Xiaoman Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing, China
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58
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Zeidan RS, Han SM, Leeuwenburgh C, Xiao R. Iron homeostasis and organismal aging. Ageing Res Rev 2021; 72:101510. [PMID: 34767974 DOI: 10.1016/j.arr.2021.101510] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 11/02/2021] [Accepted: 11/02/2021] [Indexed: 12/21/2022]
Abstract
Iron is indispensable for normal body functions across species because of its critical roles in red blood cell function and many essential proteins and enzymes required for numerous physiological processes. Regulation of iron homeostasis is an intricate process involving multiple modulators at the systemic, cellular, and molecular levels. Interestingly, emerging evidence has demonstrated that many modulators of iron homeostasis contribute to organismal aging and longevity. On the other hand, the age-related dysregulation of iron homeostasis is often associated with multiple age-related pathologies including bone resorption and neurodegenerative diseases such as Alzheimer's disease. Thus, a thorough understanding on the interconnections between systemic and cellular iron balance and organismal aging may help decipher the etiologies of multiple age-related diseases, which could ultimately lead to developing therapeutic strategies to delay aging and treat various age-related diseases. Here we present the current understanding on the mechanisms of iron homeostasis. We also discuss the impacts of aging on iron homeostatic processes and how dysregulated iron metabolism may affect aging and organismal longevity.
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59
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Freibert SA, Boniecki MT, Stümpfig C, Schulz V, Krapoth N, Winge DR, Mühlenhoff U, Stehling O, Cygler M, Lill R. N-terminal tyrosine of ISCU2 triggers [2Fe-2S] cluster synthesis by ISCU2 dimerization. Nat Commun 2021; 12:6902. [PMID: 34824239 PMCID: PMC8617193 DOI: 10.1038/s41467-021-27122-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 11/03/2021] [Indexed: 12/03/2022] Open
Abstract
Synthesis of iron-sulfur (Fe/S) clusters in living cells requires scaffold proteins for both facile synthesis and subsequent transfer of clusters to target apoproteins. The human mitochondrial ISCU2 scaffold protein is part of the core ISC (iron-sulfur cluster assembly) complex that synthesizes a bridging [2Fe-2S] cluster on dimeric ISCU2. Initial iron and sulfur loading onto monomeric ISCU2 have been elucidated biochemically, yet subsequent [2Fe-2S] cluster formation and dimerization of ISCU2 is mechanistically ill-defined. Our structural, biochemical and cell biological experiments now identify a crucial function of the universally conserved N-terminal Tyr35 of ISCU2 for these late reactions. Mixing two, per se non-functional ISCU2 mutant proteins with oppositely charged Asp35 and Lys35 residues, both bound to different cysteine desulfurase complexes NFS1-ISD11-ACP, restores wild-type ISCU2 maturation demonstrating that ionic forces can replace native Tyr-Tyr interactions during dimerization-induced [2Fe-2S] cluster formation. Our studies define the essential mechanistic role of Tyr35 in the reaction cycle of de novo mitochondrial [2Fe-2S] cluster synthesis. [2Fe-2S] protein cofactors are essential for life and are synthesized on ISCU2 scaffolds. Here, the authors show that hydrophobic interaction of two conserved N-terminal tyrosines induces ISCU2 dimerization and concomitant [2Fe-2S] cluster synthesis.
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Affiliation(s)
- Sven-A Freibert
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany.,Core Facility 'Protein Biochemistry and Spectroscopy', Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Michal T Boniecki
- Department of Biochemistry, Microbiology & Immunology, University of Saskatchewan, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada
| | - Claudia Stümpfig
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Vinzent Schulz
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Nils Krapoth
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Dennis R Winge
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany.,Department of Medicine, University of Utah Health Sciences Center, Salt Lake City, UT, USA
| | - Ulrich Mühlenhoff
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Oliver Stehling
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany.,Core Facility 'Protein Biochemistry and Spectroscopy', Karl-von-Frisch-Str. 14, 35032, Marburg, Germany
| | - Miroslaw Cygler
- Department of Biochemistry, Microbiology & Immunology, University of Saskatchewan, 107 Wiggins Rd, Saskatoon, SK, S7N 5E5, Canada.
| | - Roland Lill
- Institut für Zytobiologie im Zentrum SYNMIKRO, Philipps-Universität Marburg, Karl-von-Frisch-Str. 14, 35032, Marburg, Germany. .,Core Facility 'Protein Biochemistry and Spectroscopy', Karl-von-Frisch-Str. 14, 35032, Marburg, Germany. .,LOEWE Zentrum für Synthetische Mikrobiologie SynMikro, Hans-Meerwein-Str., 35043, Marburg, Germany.
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60
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Fischer C, Volani C, Komlódi T, Seifert M, Demetz E, Valente de Souza L, Auer K, Petzer V, von Raffay L, Moser P, Gnaiger E, Weiss G. Dietary Iron Overload and Hfe-/- Related Hemochromatosis Alter Hepatic Mitochondrial Function. Antioxidants (Basel) 2021; 10:antiox10111818. [PMID: 34829689 PMCID: PMC8615072 DOI: 10.3390/antiox10111818] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/04/2021] [Accepted: 11/13/2021] [Indexed: 12/13/2022] Open
Abstract
Iron is an essential co-factor for many cellular metabolic processes, and mitochondria are main sites of utilization. Iron accumulation promotes production of reactive oxygen species (ROS) via the catalytic activity of iron species. Herein, we investigated the consequences of dietary and genetic iron overload on mitochondrial function. C57BL/6N wildtype and Hfe-/- mice, the latter a genetic hemochromatosis model, received either normal diet (ND) or high iron diet (HI) for two weeks. Liver mitochondrial respiration was measured using high-resolution respirometry along with analysis of expression of specific proteins and ROS production. HI promoted tissue iron accumulation and slightly affected mitochondrial function in wildtype mice. Hepatic mitochondrial function was impaired in Hfe-/- mice on ND and HI. Compared to wildtype mice, Hfe-/- mice on ND showed increased mitochondrial respiratory capacity. Hfe-/- mice on HI showed very high liver iron levels, decreased mitochondrial respiratory capacity and increased ROS production associated with reduced mitochondrial aconitase activity. Although Hfe-/- resulted in increased mitochondrial iron loading, the concentration of metabolically reactive cytoplasmic iron and mitochondrial density remained unchanged. Our data show multiple effects of dietary and genetic iron loading on mitochondrial function and linked metabolic pathways, providing an explanation for fatigue in iron-overloaded hemochromatosis patients, and suggests iron reduction therapy for improvement of mitochondrial function.
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Affiliation(s)
- Christine Fischer
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Chiara Volani
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Timea Komlódi
- Oroboros Instruments, Schöpfstrasse 18, 6020 Innsbruck, Austria; (T.K.); (E.G.)
| | - Markus Seifert
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Egon Demetz
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Lara Valente de Souza
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
| | - Kristina Auer
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Verena Petzer
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Laura von Raffay
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
| | - Patrizia Moser
- Department of Pathology, Innsbruck University Hospital, Anichstrasse 35, 6020 Innsbruck, Austria;
| | - Erich Gnaiger
- Oroboros Instruments, Schöpfstrasse 18, 6020 Innsbruck, Austria; (T.K.); (E.G.)
| | - Guenter Weiss
- Department of Internal Medicine II, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria; (C.F.); (C.V.); (M.S.); (E.D.); (L.V.d.S.); (K.A.); (V.P.); (L.v.R.)
- Christian Doppler Laboratory for Iron Metabolism and Anemia Research, Medical University of Innsbruck, Anichstrasse 35, 6020 Innsbruck, Austria
- Correspondence: ; Tel.: +43-(0)512/504-23251
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Zhao Y, Huang Z, Peng H. Molecular Mechanisms of Ferroptosis and Its Roles in Hematologic Malignancies. Front Oncol 2021; 11:743006. [PMID: 34778060 PMCID: PMC8582018 DOI: 10.3389/fonc.2021.743006] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Accepted: 10/05/2021] [Indexed: 01/08/2023] Open
Abstract
Cell death is essential for the normal metabolism of human organisms. Ferroptosis is a unique regulated cell death (RCD) mode characterized by excess accumulation of iron-dependent lipid peroxide and reactive oxygen species (ROS) compared with other well-known programmed cell death modes. It has been currently recognized that ferroptosis plays a rather important role in the occurrence, development, and treatment of traumatic brain injury, stroke, acute kidney injury, liver damage, ischemia–reperfusion injury, tumor, etc. Of note, ferroptosis may be explained by the expression of various molecules and signaling components, among which iron, lipid, and amino acid metabolism are the key regulatory mechanisms of ferroptosis. Meanwhile, tumor cells of hematological malignancies, such as leukemia, lymphoma, and multiple myeloma (MM), are identified to be sensitive to ferroptosis. Targeting potential regulatory factors in the ferroptosis pathway may promote or inhibit the disease progression of these malignancies. In this review, a systematic summary was conducted on the key molecular mechanisms of ferroptosis and the current potential relationships of ferroptosis with leukemia, lymphoma, and MM. It is expected to provide novel potential therapeutic approaches and targets for hematological malignancies.
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Affiliation(s)
- Yan Zhao
- Department of Hematology, The Second Xiangya Hospital, Hunan Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China.,Institute of Hematology, Central South University, Changsha, China
| | - Zineng Huang
- Department of Hematology, The Second Xiangya Hospital, Hunan Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China.,Institute of Hematology, Central South University, Changsha, China
| | - Hongling Peng
- Department of Hematology, The Second Xiangya Hospital, Hunan Key Laboratory of Basic and Applied Hematology, Central South University, Changsha, China.,Institute of Hematology, Central South University, Changsha, China.,Hunan Key Laboratory of Tumor Models and Individualized Medicine, Changsha, China
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Han J, Fan Y, Wu P, Huang Z, Li X, Zhao L, Ji Y, Zhu M. Parkinson's Disease Dementia: Synergistic Effects of Alpha-Synuclein, Tau, Beta-Amyloid, and Iron. Front Aging Neurosci 2021; 13:743754. [PMID: 34707492 PMCID: PMC8542689 DOI: 10.3389/fnagi.2021.743754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/21/2021] [Indexed: 12/31/2022] Open
Abstract
Parkinson’s disease dementia (PDD) is a common complication of Parkinson’s disease that seriously affects patients’ health and quality of life. At present, the process and pathological mechanisms of PDD remain controversial, which hinders the development of treatments. An increasing number of clinical studies have shown that alpha-synuclein (α-syn), tau, beta-amyloid (Aβ), and iron are closely associated with PDD severity. Thus, we inferred the vicious cycle that causes oxidative stress (OS), due to the synergistic effects of α-syn, tau, Aβ, and, iron, and which plays a pivotal role in the mechanism underlying PDD. First, iron-mediated reactive oxygen species (ROS) production can lead to neuronal protein accumulation (e.g., α-syn andAβ) and cytotoxicity. In addition, regulation of post-translational modification of α-syn by iron affects the aggregation or oligomer formation of α-syn. Iron promotes tau aggregation and neurofibrillary tangles (NFTs) formation. High levels of iron, α-syn, Aβ, tau, and NFTs can cause severe OS and neuroinflammation, which lead to cell death. Then, the increasing formation of α-syn, Aβ, and NFTs further increase iron levels, which promotes the spread of α-syn and Aβ in the central and peripheral nervous systems. Finally, iron-induced neurotoxicity promotes the activation of glycogen synthase kinase 3β (GSK3β) related pathways in the synaptic terminals, which in turn play an important role in the pathological synergistic effects of α-syn, tau and Aβ. Thus, as the central factor regulating this vicious cycle, GSK3β is a potential target for the prevention and treatment of PDD; this is worthy of future study.
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Affiliation(s)
- Jiajun Han
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Yaohua Fan
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Peipei Wu
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Zifeng Huang
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Xinrong Li
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Lijun Zhao
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Yichun Ji
- Shenzhen Bao'an Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Meiling Zhu
- Traditional Chinese Medicine Innovation Research Center, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Guangzhou University of Chinese Medicine, Shenzhen, China
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Cheng Z, Akatsuka S, Li GH, Mori K, Takahashi T, Toyokuni S. Ferroptosis resistance determines high susceptibility of murine A/J strain to iron-induced renal carcinogenesis. Cancer Sci 2021; 113:65-78. [PMID: 34699654 PMCID: PMC8748236 DOI: 10.1111/cas.15175] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/11/2021] [Accepted: 10/19/2021] [Indexed: 12/22/2022] Open
Abstract
Cancer susceptibility is a critical factor in the understanding of carcinogenesis. Intraperitoneal (i.p.) injection of an iron chelate, ferric nitrilotriacetate (Fe‐NTA), produces hydroxyl radicals via Fenton reaction to induce ferroptosis in renal proximal tubules. Rats or mice subjected to repeated i.p. injections of Fe‐NTA develop renal cell carcinoma (RCC). To elucidate the molecular mechanisms that cause susceptibility to renal carcinogenesis, we first established an inter‐strain difference in the susceptibility to Fe‐NTA‐induced renal carcinogenesis in mice. Based on a previous observation of a low incidence of RCC with this model in C57BL/6J strain mice, we investigated A/J strain mice here, which demonstrated significantly higher susceptibility to Fe‐NTA‐induced renal carcinogenesis. Homozygous deletion of the Cdkn2a/2b tumor suppressor locus was detected for the first time in A/J strain mice. Focusing on ferroptosis and iron metabolism, we explored the mechanisms involved that lead to the difference in RCC development. We compared the protective responses in the kidney of A/J and C57BL/6J strains after Fe‐NTA treatment. After 3‐week Fe‐NTA treatment, A/J mice maintained higher levels of expression of glutathione peroxidase 4 and xCT (SLC7A11), leading to a lower level of lipid peroxidation. Simultaneously, A/J mice had decreased expression of transferrin receptor and increased expression of ferritin to greater degrees than C57BL/6 mice. After a single Fe‐NTA injection, higher levels of oxidative cell damage and cytosolic catalytic Fe(II) were observed in C57BL/6J mice, accompanied by a greater increase in lipocalin‐2. Lipocalin‐2 deficiency significantly decreased oxidative renal damage. Our results suggest that a genetic trait favoring ferroptosis resistance contributes to high susceptibility to Fe‐NTA‐induced RCC in A/J strain.
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Affiliation(s)
- Zhen Cheng
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinya Akatsuka
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Guang Hua Li
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoshi Mori
- Graduate School of Public Health, Shizuoka Graduate University of Public Health, Shizuoka, Japan.,Department of Molecular and Clinical Pharmacology, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.,Department of Nephrology and Kidney Research, Shizuoka General Hospital, Shizuoka, Japan
| | | | - Shinya Toyokuni
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Center for Low-temperature Plasma Sciences, Nagoya University, Nagoya, Japan
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Gao W, Zhang T, Wu H. Emerging Pathological Engagement of Ferroptosis in Gut Diseases. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4246255. [PMID: 34733403 PMCID: PMC8560274 DOI: 10.1155/2021/4246255] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Accepted: 10/06/2021] [Indexed: 02/08/2023]
Abstract
Inflammatory bowel disease (IBD), including ulcerative colitis and Crohn's disease, is mainly characterized by chronic and progressive inflammation that damages the gastrointestinal mucosa. Increasing studies have enlightened that dysregulated cell death occurs in the inflamed sites, leading to the disruption of the intestinal barrier and aggravating inflammatory response. Ferroptosis, a newly characterized form of regulated cell death, is driven by the lethal accumulation of lipid peroxides catalyzed by cellular free iron. It has been widely documented that the fundamental features of ferroptosis, including iron deposition, GSH exhaustion, GPX4 inactivation, and lipid peroxidation, are manifested in the injured gastrointestinal tract in IBD patients. Furthermore, manipulation of the critical ferroptotic genes could alter the progression, severity, or even morbidity of the experimental colitis. Herein, we critically summarize the recent advances in the field of ferroptosis, focusing on interpreting the potential engagement of ferroptosis in the pathogenesis of IBD. Moreover, we are attempting to shed light on a perspective insight into the possibility of targeting ferroptosis as novel therapeutic designs for the clinical intervention of these gastrointestinal diseases.
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Affiliation(s)
- Weihua Gao
- Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China
- State Key Laboratory of Agricultural Microbiology, College of Animal Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan, Hubei 430070, China
| | - Ting Zhang
- Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China
- Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
| | - Hao Wu
- Hubei Hongshan Laboratory, Wuhan, Hubei 430070, China
- Interdisciplinary Sciences Institute, Huazhong Agricultural University, Wuhan, Hubei 430070, China
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan 430070, China
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Shen J, Xu L, Li Y, Dong W, Cai J, Liu Y, Zhao H, Xu T, Holtz EM, Chang Y, Qiao T, Li K. Protective Effects of Hif2 Inhibitor PT-2385 on a Neurological Disorder Induced by Deficiency of Irp2. Front Neurosci 2021; 15:715222. [PMID: 34675764 PMCID: PMC8525628 DOI: 10.3389/fnins.2021.715222] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 09/06/2021] [Indexed: 12/30/2022] Open
Abstract
Iron regulatory protein 2 (IRP2) deficiency in mice and humans causes microcytic anemia and neurodegeneration due to functional cellular iron depletion. Our previous in vitro data have demonstrated that Irp2 depletion upregulates hypoxia-inducible factor subunits Hif1α and Hif2α expression; inhibition of Hif2α rescues Irp2 ablation-induced mitochondrial dysfunction; and inhibition of Hif1α suppresses the overdose production of lactic acid derived from actively aerobic glycolysis. We wonder whether Hif1α and Hif2α are also elevated in vivo and play a similar role in neurological disorder of Irp2–/– mice. In this study, we confirmed the upregulation of Hif2α, not Hif1α, in tissues, particularly in the central nervous system including the mainly affected cerebellum and spinal cord of Irp2–/– mice. Consistent with this observation, inhibition of Hif2α by PT-2385, not Hif1α by PX-478, prevented neurodegenerative symptoms, which were proved by Purkinje cell arrangement from the shrunken and irregular to the full and regular array. PT-2385 treatment did not only modulate mitochondrial morphology and quality in vivo but also suppressed glycolysis. Consequently, the shift of energy metabolism from glycolysis to oxidative phosphorylation (OXPHOS) was reversed. Our results indicate that Irp2 depletion-induced Hif2α is, in vivo, in charge of the switch between OXPHOS and glycolysis, suggesting that, for the first time to our knowledge, Hif2α is a clinically potential target in the treatment of IRP2 deficiency-induced neurodegenerative syndrome.
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Affiliation(s)
- Jiaqi Shen
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Li Xu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Yuxuan Li
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Weichen Dong
- Department of Neurology, The Affiliated Jinling Hospital of Nanjing University Medical School, Nanjing, China
| | - Jing Cai
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Yutong Liu
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Hongting Zhao
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
| | - Tianze Xu
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Esther Meyron Holtz
- The Laboratory of Molecular Nutrition, Faculty of Biotechnology and Food Engineering, Technion - Israel Institute of Technology, Haifa, Israel
| | - Yanzhong Chang
- College of Life Science, Hebei Normal University, Shijiazhuang, China
| | - Tong Qiao
- Department of Vascular Surgery, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China
| | - Kuanyu Li
- Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, China
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Marku A, Galli A, Marciani P, Dule N, Perego C, Castagna M. Iron Metabolism in Pancreatic Beta-Cell Function and Dysfunction. Cells 2021; 10:2841. [PMID: 34831062 PMCID: PMC8616520 DOI: 10.3390/cells10112841] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 10/15/2021] [Accepted: 10/19/2021] [Indexed: 12/26/2022] Open
Abstract
Iron is an essential element involved in a variety of physiological functions. In the pancreatic beta-cells, being part of Fe-S cluster proteins, it is necessary for the correct insulin synthesis and processing. In the mitochondria, as a component of the respiratory chain, it allows the production of ATP and reactive oxygen species (ROS) that trigger beta-cell depolarization and potentiate the calcium-dependent insulin release. Iron cellular content must be finely tuned to ensure the normal supply but also to prevent overloading. Indeed, due to the high reactivity with oxygen and the formation of free radicals, iron excess may cause oxidative damage of cells that are extremely vulnerable to this condition because the normal elevated ROS production and the paucity in antioxidant enzyme activities. The aim of the present review is to provide insights into the mechanisms responsible for iron homeostasis in beta-cells, describing how alteration of these processes has been related to beta-cell damage and failure. Defects in iron-storing or -chaperoning proteins have been detected in diabetic conditions; therefore, the control of iron metabolism in these cells deserves further investigation as a promising target for the development of new disease treatments.
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Affiliation(s)
| | | | | | | | - Carla Perego
- Department of Excellence Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Trentacoste, 22134 Milano, Italy; (A.M.); (A.G.); (P.M.); (N.D.)
| | - Michela Castagna
- Department of Excellence Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Via Trentacoste, 22134 Milano, Italy; (A.M.); (A.G.); (P.M.); (N.D.)
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Jung SY, Lee HK, Kim H, Kim S, Kim JS, Kang JG, Kuh HJ, Yoo JS, Ko JH, Lee JH. Depletion of ST6GALNACIII retards A549 non-small cell lung cancer cell proliferation by downregulating transferrin receptor protein 1 expression. Biochem Biophys Res Commun 2021; 575:78-84. [PMID: 34461439 DOI: 10.1016/j.bbrc.2021.08.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 08/13/2021] [Accepted: 08/23/2021] [Indexed: 12/30/2022]
Abstract
Alterations in sialylation of terminal residues of glycoproteins have been implicated in forming tumor-associated glycans. ST6GALNAC transfers sialyl moiety to N-acetylgalactosamine residue via α2,6 linkage. Although the oncogenic characteristics of ST6GALNACI or II have been demonstrated in various cancer cells, the impact of ST6GALNACIII on tumor progression remains undefined. In this study, we evaluated the effect of ST6GALNACIII knockdown on the growth of A549 non-small cell lung cancer cells. ST6GALNACIII depletion resulted in significant retardation in growth of A549 cells under various culture conditions, including collagen-supported 3D culture and anchorage-independent soft agar culture conditions. Liquid chromatography with tandem mass spectrometry revealed that two glycopeptides of transferrin receptor protein 1 (TFR1) containing N-acetylhexosamine-sialic acid were not detected in ST6GALNACIII-depleted A549 cells compared with control cells. Subsequent lectin binding assay, western blotting, and real-time RT-PCR indicated that TFR1 sialylation was not significantly changed, but TFR1 protein and mRNA expressions were decreased after ST6GALNACIII knockdown. However, cell growth retardation by ST6GALNACIII knockdown was partially rescued by TFR1 overexpression. Additionally, TFR1 mRNA degradation was accelerated following ST6GALNACIII knockdown with concomitant reduction in mRNA levels of iron regulatory protein 1 and 2, the upstream regulators of TFR1 mRNA stability. Therefore, our results indicated an important role of ST6GALNACIII in promoting A549 cell growth through quantitative regulation of TFR1 expression and provided therapeutic implications for ST6GALNACIII targeting in tumor growth suppression in vivo.
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Affiliation(s)
- Soon-Young Jung
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Hyun Kyoung Lee
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, 28119, South Korea
| | - Hyungmin Kim
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Department of Biomedicine & Health Sciences, Graduate School, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Seulki Kim
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Jung Soo Kim
- Genome Editing Research Center, KRIBB, Daejeon, 34141, South Korea
| | - Jeong Gu Kang
- Genome Editing Research Center, KRIBB, Daejeon, 34141, South Korea
| | - Hyo-Jeong Kuh
- Department of Medical Life Sciences, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea
| | - Jong Shin Yoo
- Research Center of Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, 28119, South Korea
| | - Jeong-Heon Ko
- Genome Editing Research Center, KRIBB, Daejeon, 34141, South Korea.
| | - Jeong-Hwa Lee
- Department of Biochemistry, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea; Institute for Aging and Metabolic Diseases, College of Medicine, The Catholic University of Korea, Seoul, 06591, South Korea.
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Bardestani A, Ebrahimpour S, Esmaeili A, Esmaeili A. Quercetin attenuates neurotoxicity induced by iron oxide nanoparticles. J Nanobiotechnology 2021; 19:327. [PMID: 34663344 PMCID: PMC8522232 DOI: 10.1186/s12951-021-01059-0] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 09/24/2021] [Indexed: 01/19/2023] Open
Abstract
Iron oxide nanoparticles (IONPs) have been proposed as targeted carriers to deliver therapeutic molecules in the central nervous system (CNS). However, IONPs may damage neural tissue via free iron accumulation, protein aggregation, and oxidative stress. Neuroprotective effects of quercetin (QC) have been proven due to its antioxidant and anti-inflammatory properties. However, poor solubility and low bioavailability of QC have also led researchers to make various QC-involved nanoparticles to overcome these limitations. We wondered how high doses or prolonged treatment with quercetin conjugated superparamagnetic iron oxide nanoparticles (QCSPIONs) could improve cognitive dysfunction and promote neurogenesis without any toxicity. It can be explained that the QC inhibits protein aggregation and acts against iron overload via iron-chelating activity, iron homeostasis genes regulation, radical scavenging, and attenuation of Fenton/Haber-Weiss reaction. In this review, first, we present brain iron homeostasis, molecular mechanisms of iron overload that induced neurotoxicity, and the role of iron in dementia-associated diseases. Then by providing evidence of IONPs neurotoxicity, we discuss how QC neutralizes IONPs neurotoxicity, and finally, we make a brief comparison between QC and conventional iron chelators. In this review, we highlight that QC as supplementation and especially in conjugated form reduces iron oxide nanoparticles neurotoxicity in clinical application.
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Affiliation(s)
- Akram Bardestani
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, P.O. Box: 8174673441, Isfahan, Iran
| | - Shiva Ebrahimpour
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, P.O. Box: 8174673441, Isfahan, Iran
| | - Ali Esmaeili
- School of Dentistry, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Abolghasem Esmaeili
- Department of Cell and Molecular Biology & Microbiology, Faculty of Biological Science and Technology, University of Isfahan, P.O. Box: 8174673441, Isfahan, Iran.
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Mitochondrial iron-sulfur clusters: Structure, function, and an emerging role in vascular biology. Redox Biol 2021; 47:102164. [PMID: 34656823 PMCID: PMC8577454 DOI: 10.1016/j.redox.2021.102164] [Citation(s) in RCA: 87] [Impact Index Per Article: 29.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/04/2021] [Accepted: 10/08/2021] [Indexed: 12/31/2022] Open
Abstract
Iron-sulfur (Fe-S) clusters are essential cofactors most commonly known for their role mediating electron transfer within the mitochondrial respiratory chain. The Fe-S cluster pathways that function within the respiratory complexes are highly conserved between bacteria and the mitochondria of eukaryotic cells. Within the electron transport chain, Fe-S clusters play a critical role in transporting electrons through Complexes I, II and III to cytochrome c, before subsequent transfer to molecular oxygen. Fe-S clusters are also among the binding sites of classical mitochondrial inhibitors, such as rotenone, and play an important role in the production of mitochondrial reactive oxygen species (ROS). Mitochondrial Fe-S clusters also play a critical role in the pathogenesis of disease. High levels of ROS produced at these sites can cause cell injury or death, however, when produced at low levels can serve as signaling molecules. For example, Ndufs2, a Complex I subunit containing an Fe-S center, N2, has recently been identified as a redox-sensitive oxygen sensor, mediating homeostatic oxygen-sensing in the pulmonary vasculature and carotid body. Fe-S clusters are emerging as transcriptionally-regulated mediators in disease and play a crucial role in normal physiology, offering potential new therapeutic targets for diseases including malaria, diabetes, and cancer.
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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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71
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Oliveira T, Hermann E, Lin D, Chowanadisai W, Hull E, Montgomery M. HDAC inhibition induces EMT and alterations in cellular iron homeostasis to augment ferroptosis sensitivity in SW13 cells. Redox Biol 2021; 47:102149. [PMID: 34600336 PMCID: PMC8487084 DOI: 10.1016/j.redox.2021.102149] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2021] [Revised: 09/21/2021] [Accepted: 09/24/2021] [Indexed: 01/18/2023] Open
Abstract
Epithelial-to-mesenchymal transition (EMT) is an essential mechanism for development and wound healing, but in cancer it also mediates the progression and spread of aggressive tumors while increasing therapeutic resistance. Adoption of a mesenchymal state is also associated with increased iron uptake, but the relationship between EMT and the key regulators of cellular iron metabolism remains undefined. In this regard, the human adrenal cortical carcinoma SW13 cell line represents an invaluable research model as HDAC inhibitor treatment can convert them from an epithelial-like (SW13-) cell type to a mesenchymal-like (SW13+) subtype. In this study we establish SW13 cells as a model for exploring the link between iron and EMT. Increased iron accumulation following HDAC inhibitor mediated EMT is associated with decreased expression of the iron export protein ferroportin, enhanced ROS production, and reduced expression of antioxidant response genes. As availability of redox active iron and loss of lipid peroxide repair capacity are hallmarks of ferroptosis, a form of iron-mediated cell death, we next examined whether HDAC inhibitor treatment could augment ferroptosis sensitivity. Indeed, HDAC inhibitor treatment synergistically increased cell death following induction of ferroptosis. The exact mechanisms by which HDAC inhibition facilitates cell death following ferroptosis induction requires further study. As several HDAC inhibitors are already in use clinically for the treatment of certain cancer types, the findings from these studies have immediate implications for improving iron-targeted chemotherapeutic strategies.
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Affiliation(s)
- Thais Oliveira
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, 74074, USA.
| | - Evan Hermann
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, 74074, USA.
| | - Daniel Lin
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, 74074, USA.
| | - Winyoo Chowanadisai
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, 74074, USA.
| | - Elizabeth Hull
- Biomedical Sciences, Midwestern University, Glendale, AZ, 85308, USA.
| | - McKale Montgomery
- Department of Nutritional Sciences, Oklahoma State University, Stillwater, OK, 74074, USA.
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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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73
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Ali A, Shafarin J, Abu Jabal R, Aljabi N, Hamad M, Sualeh Muhammad J, Unnikannan H, Hamad M. Ferritin heavy chain (FTH1) exerts significant antigrowth effects in breast cancer cells by inhibiting the expression of c-MYC. FEBS Open Bio 2021; 11:3101-3114. [PMID: 34551213 PMCID: PMC8564339 DOI: 10.1002/2211-5463.13303] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/19/2021] [Accepted: 09/21/2021] [Indexed: 12/24/2022] Open
Abstract
Overexpression of ferritin heavy chain (FTH1) often associates with good prognosis in breast cancer (BCa), particularly in the triple‐negative subtype (triple‐negative breast cancer). However, the mechanism by which FTH1 exerts its possible tumor suppressor effects in BCa is not known. Here, we examined the bearing of FTH1 silencing or overexpression on several aspects of BCa cell growth in vitro. FTH1 silencing promoted cell growth and mammosphere formation, increased c‐MYC expression, and reduced cell sensitivity to chemotherapy. In contrast, FTH1 overexpression inhibited cell growth, decreased c‐MYC expression, and sensitized cancer cells to chemotherapy; silencing of c‐MYC recapitulated the effects of FTH1 overexpression. These findings show for the first time that FTH1 suppresses tumor growth by inhibiting the expression of key oncogenes, such as c‐MYC.
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Affiliation(s)
- Amjad Ali
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
| | - Jasmin Shafarin
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
| | - Rola Abu Jabal
- Department of Basic Medical SciencesCollege of MedicineUniversity of SharjahUnited Arab Emirates
| | - Nour Aljabi
- Department of Basic Medical SciencesCollege of MedicineUniversity of SharjahUnited Arab Emirates
| | - Mohamad Hamad
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
- Department of Medical Laboratory SciencesCollege of Health SciencesUniversity of SharjahUnited Arab Emirates
| | - Jibran Sualeh Muhammad
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
- Department of Basic Medical SciencesCollege of MedicineUniversity of SharjahUnited Arab Emirates
| | - Hema Unnikannan
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
| | - Mawieh Hamad
- Research Institute for Medical and Health SciencesUniversity of SharjahUnited Arab Emirates
- Department of Medical Laboratory SciencesCollege of Health SciencesUniversity of SharjahUnited Arab Emirates
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74
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Ha J, Park SB. Callyspongiolide kills cells by inducing mitochondrial dysfunction via cellular iron depletion. Commun Biol 2021; 4:1123. [PMID: 34556786 PMCID: PMC8460830 DOI: 10.1038/s42003-021-02643-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 09/01/2021] [Indexed: 12/15/2022] Open
Abstract
The highly cytotoxic marine natural product callyspongiolide holds great promise as a warhead of antibody-drug conjugate in cancer therapeutics; however, the mechanism underlying its cytotoxicity remains unclear. To elucidate how callyspongiolide kills cells, we employed label-free target identification with thermal stability-shift-based fluorescence difference in two-dimensional (2-D) gel electrophoresis (TS-FITGE), which allowed observation of a unique phenomenon of protein-spot separation on 2-D gels upon treatment with callyspongiolide at increasing temperatures. During our exploration of what proteins were associated with this phenomenon as well as why it happens, we found that callyspongiolide induces mitochondrial/lysosomal dysfunction and autophagy inhibition. Moreover, molecular biology studies revealed that callyspongiolide causes lysosomal dysfunction, which induces cellular iron depletion and leads to mitochondrial dysfunction and subsequent cytotoxicity. Notably, these effects were rescued through iron supplementation. Although our approach was unable to reveal the direct protein targets of callyspongiolide, unique phenomena observed only by TS-FITGE provided critical insight into the mechanism of action of callyspongiolide and specifically its cytotoxic activity via induction of mitochondrial dysfunction through cellular iron depletion caused by lysosomal deacidification, which occurred independent of known programmed cell death pathways. In order to elucidate how callyspongiolide, a potent cytotoxic marine natural product, kills human lung cancer cells, Ha and Park employed TS-FITGE technique, a label-free target identification method with thermal stability-shift-based fluorescence difference in 2-D gel electrophoresis, allowing them to observe protein-spot separation upon treatment in increasing temperatures. They found that callyspongiolide induces lysosomal dysfunction followed by mitochondrial dysfunction as well as iron depletion, which sheds light on the mechanism of action of callyspongiolide.
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Affiliation(s)
- Jaeyoung Ha
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea
| | - Seung Bum Park
- Department of Biophysics and Chemical Biology, Seoul National University, Seoul, 08826, Korea. .,CRI Center for Chemical Proteomics, Department of Chemistry, Seoul National University, Seoul, 08826, Korea. .,SPARK Biopharma, Inc, Seoul, 08791, Korea.
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75
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Vásquez-Trincado C, Patel M, Sivaramakrishnan A, Bekeová C, Anderson-Pullinger L, Wang N, Tang HY, Seifert EL. Adaptation of the heart to Frataxin depletion: Evidence that integrated stress response can predominate over mTORC1 activation. Hum Mol Genet 2021; 33:ddab216. [PMID: 34550363 PMCID: PMC11000666 DOI: 10.1093/hmg/ddab216] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/07/2021] [Accepted: 07/08/2021] [Indexed: 11/12/2022] Open
Abstract
Friedreich's ataxia (FRDA) is an inherited disorder caused by depletion of frataxin (FXN), a mitochondrial protein required for iron-sulfur cluster (ISC) biogenesis. Cardiac dysfunction is the main cause of death. Yet pathogenesis, and, more generally, how the heart adapts to FXN loss, remain poorly understood, though are expected to be linked to an energy deficit. We modified a transgenic (TG) mouse model of inducible FXN depletion that permits phenotypic evaluation of the heart at different FXN levels, and focused on substrate-specific bioenergetics and stress signaling. When FXN protein in the TG heart was 17% of normal, bioenergetics and signaling were not different from control. When, 8 weeks later, FXN was ~ 97% depleted in the heart, TG heart mass and cardiomyocyte cross-sectional area were less, without evidence of fibrosis or apoptosis. mTORC1 signaling was activated, as was the integrated stress response, evidenced by greater phosphorylation of eIF2α relative to total eIF2α, and decreased protein translation. We interpret these results to suggest that, in TG hearts, an anabolic stimulus was constrained by eIF2α phosphorylation. Cardiac contractility was maintained in the 97%-FXN-depleted hearts, possibly contributed by an unexpected preservation of β-oxidation, though pyruvate oxidation was lower. Bioenergetics alterations were matched by changes in the mitochondrial proteome, including a non-uniform decrease in abundance of ISC-containing proteins. Altogether, these findings suggest that the FXN depleted heart can suppress a major ATP demanding process such as protein translation, which, together with some preservation of β-oxidation, could be adaptive, at least in the short term.
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Affiliation(s)
- César Vásquez-Trincado
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Monika Patel
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Aishwarya Sivaramakrishnan
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Carmen Bekeová
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Lauren Anderson-Pullinger
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Nadan Wang
- Center for Translational Medicine, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
| | - Hsin-Yao Tang
- Proteomics and Metabolomics Facility, The Wistar Institute, Philadelphia, PA 19104, United States
| | - Erin L Seifert
- MitoCare Center for Mitochondrial Imaging Research and Diagnostics, Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, PA 19107, United States
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76
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Jing X, Wang Q, Du T, Zhang W, Liu X, Liu Q, Li T, Wang G, Chen F, Cui X. Calcium chelator BAPTA‑AM protects against iron overload‑induced chondrocyte mitochondrial dysfunction and cartilage degeneration. Int J Mol Med 2021; 48:196. [PMID: 34468013 PMCID: PMC8416145 DOI: 10.3892/ijmm.2021.5029] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 08/11/2021] [Indexed: 12/20/2022] Open
Abstract
Osteoarthritis (OA) is a common joint disease that is characterized by cartilage degradation. Iron deposition in the joints is common during the pathogenic progression of OA and recent studies have indicated that iron overload is an important contributor to OA progression. Calcium chelators have been reported to inhibit iron influx via modulating transferrin receptor protein 1 internalization, and they have been identified as a potential approach to the treatment of iron overload‑induced diseases. The aim of the present study was to investigate the effect of calcium chelators on the progression of iron overload‑induced OA. Primary chondrocytes were treated with various concentrations of ferric ammonium citrate (FAC) to mimic iron overload in vitro, followed by co‑treatment with the calcium chelator BAPTA acetoxymethyl ester (BAPTA‑AM). Subsequently, intracellular iron levels, cell viability, reactive oxygen species (ROS) levels, mitochondrial function and morphological changes, as well as MMP levels, were detected using commercial kits. It was demonstrated that FAC treatment significantly promoted chondrocyte apoptosis and the expression of MMPs, and these effects were reversed by co‑treatment with BAPTA‑AM. Moreover, BAPTA‑AM suppressed iron influx into chondrocytes and inhibited iron overload‑induced ROS production and mitochondrial dysfunction. These results indicated that calcium chelators may be of value in the treatment of iron metabolism‑related diseases and iron overload‑induced OA progression.
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Affiliation(s)
- Xingzhi Jing
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Qiang Wang
- Department of Human Resources, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Ting Du
- Yidu Cloud (Beijing) Technology Co., Ltd., Beijing 100191, P.R. China
| | - Weimin Zhang
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Xiaoyang Liu
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Qiang Liu
- Yidu Cloud (Beijing) Technology Co., Ltd., Beijing 100191, P.R. China
| | - Tao Li
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Guodong Wang
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Feifei Chen
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
| | - Xingang Cui
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250021, P.R. China
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Abstract
Significance: Iron is an essential element required for growth and proper functioning of the body. However, an excess of labile ferrous iron increases the risk of oxidative stress-induced injury due to the high reactivity of the unpaired reactive electrons of both ferrous iron and oxygen. This high reactivity can be exemplified in the outside world by one of its consequences, rust formation. In cells, this redox-active iron is involved in the formation of lipid radicals. Recent Advances: Defect or insufficient membrane-protective mechanisms can result in iron-catalyzed excessive lipid peroxidation and subsequent cell death, now conceptualized as ferroptosis. Growing reports propose the detrimental role of iron and ferroptosis in many experimental disease models such as ischemia-reperfusion, acute and chronic organ injuries. Critical Issues: This review first provides a snapshot of iron metabolism, followed by a brief introduction of the molecular mechanisms of ferroptosis, as an iron-dependent lipid peroxidation-driven mode of cell death. Upon describing how iron dysbiosis affects ferroptosis induction, we elaborate on the detrimental role of the iron-ferroptosis axis in several diseases. Future Directions: Despite compelling findings suggesting a role of ferroptosis in experimental animal models, the exact contribution of ferroptosis in human contexts still needs further investigation. Development of reliable ferroptosis biomarkers will be an important step in characterizing ferroptosis in human disease. This can provide therapeutic opportunities aiming at targeting ferroptosis in human diseases. Antioxid. Redox Signal. 35, 487-509.
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Affiliation(s)
- Behrouz Hassannia
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
| | - Samya Van Coillie
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium
| | - Tom Vanden Berghe
- VIB-UGent Center for Inflammation Research (IRC), Ghent, Belgium.,Department of Biomedical Molecular Biology (DBMB), Ghent University, Ghent, Belgium.,Department of Biomedical Sciences, University of Antwerp, Antwerp, Belgium
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78
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Zhang Y, Tian X, Jiao Y, Liu Q, Li R, Wang W. An out of box thinking: the changes of iron-porphyrin during meat processing and gastrointestinal tract and some methods for reducing its potential health hazard. Crit Rev Food Sci Nutr 2021; 63:1390-1405. [PMID: 34387535 DOI: 10.1080/10408398.2021.1963946] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Iron-porphyrin is a very important substance in organisms, especially in animals. It is not only the source of iron in human body, but is also the catalytic center of many reactions. Previous studies suggested that adequate intake of iron was important for the health of human, especially for children and pregnant women. However, associated diseases caused by iron over-intake and excessive meat consumption suggested its potential harmfulness for human health. During meat processing, Iron-porphyrin will cause the oxidation of proteins and fatty acids. In the gastrointestinal tract, iron-porphyrin can induce the production of malondialdehyde, fats oxidation, and indirectly cause oxidation of amino acids and nitrates etc. Iron-porphyrin enters the intestinal tract and disturbs the balance of intestinal flora. Finally, some common measures for inhibiting its activity are introduced, including the use of chelating agent, antioxidants, competitive inhibitor, etc., as well as give the hypothesis that sodium chloride increases the catalytic activity of iron-porphyrin. The purpose of this review is to present an overview of current knowledge about the changes of iron-porphyrin in the whole technico- and gastrointesto- processing axis and to provide ideas for further research in meat nutrition.
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Affiliation(s)
- Yafei Zhang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Xiaojing Tian
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Yuzhen Jiao
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Qiubo Liu
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Ruonan Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
| | - Wenhang Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin, China
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79
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Rizzollo F, More S, Vangheluwe P, Agostinis P. The lysosome as a master regulator of iron metabolism. Trends Biochem Sci 2021; 46:960-975. [PMID: 34384657 DOI: 10.1016/j.tibs.2021.07.003] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 07/05/2021] [Accepted: 07/19/2021] [Indexed: 12/15/2022]
Abstract
Intracellular iron fulfills crucial cellular processes, including DNA synthesis and mitochondrial metabolism, but also mediates ferroptosis, a regulated form of cell death driven by lipid-based reactive oxygen species (ROS). Beyond their established role in degradation and recycling, lysosomes occupy a central position in iron homeostasis and integrate metabolic and cell death signals emanating from different subcellular sites. We discuss the central role of the lysosome in preserving iron homeostasis and provide an integrated outlook of the regulatory circuits coupling the lysosomal system to the control of iron trafficking, interorganellar crosstalk, and ferroptosis induction. We also discuss novel studies unraveling how deregulated lysosomal iron-handling functions contribute to cancer, neurodegeneration, and viral infection, and can be harnessed for therapeutic interventions.
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Affiliation(s)
- Francesca Rizzollo
- Laboratory of Cell Death and Research, Vlaams Instituut voor Biotechnologie (VIB)-Katholieke Universiteit (KU) Leuven Center for Cancer Biology, Leuven, Belgium; Laboratory of Cell Death and Research, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Sanket More
- Laboratory of Cell Death and Research, Vlaams Instituut voor Biotechnologie (VIB)-Katholieke Universiteit (KU) Leuven Center for Cancer Biology, Leuven, Belgium; Laboratory of Cell Death and Research, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium
| | - Peter Vangheluwe
- Laboratory of Cellular Transport Systems, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
| | - Patrizia Agostinis
- Laboratory of Cell Death and Research, Vlaams Instituut voor Biotechnologie (VIB)-Katholieke Universiteit (KU) Leuven Center for Cancer Biology, Leuven, Belgium; Laboratory of Cell Death and Research, Department of Cellular and Molecular Medicine, KU Leuven, Leuven, Belgium.
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80
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Olona A, Hateley C, Muralidharan S, Wenk MR, Torta F, Behmoaras J. Sphingolipid metabolism during Toll-like receptor 4 (TLR4)-mediated macrophage activation. Br J Pharmacol 2021; 178:4575-4587. [PMID: 34363204 DOI: 10.1111/bph.15642] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/18/2021] [Accepted: 07/27/2021] [Indexed: 12/14/2022] Open
Abstract
Macrophage activation in response to stimulation of Toll-like receptor 4 (TLR4) provides a paradigm for investigating energy metabolism that regulates the inflammatory response. TLR4-mediated pro-inflammatory macrophage activation is characterized by increased glycolysis and altered mitochondrial metabolism, supported by selective amino acid uptake and/or usage. Fatty acid metabolism remains as a highly complex rewiring that accompanies classical macrophage activation. TLR4 activation leads to de novo synthesis of fatty acids, which flux into sphingolipids, complex lipids that form the building blocks of eukaryotic cell membranes and regulate cell function. Here, we review the importance of TLR4-mediated de novo synthesis of membrane sphingolipids in macrophages. We first highlight fatty acid metabolism during TLR4-driven macrophage immunometabolism. We then focus on the temporal dynamics of sphingolipid biosynthesis and emphasize the modulatory role of some sphingolipid species (i.e. sphingomyelins, ceramides and glycosphingolipids) on the pro-inflammatory and pro-resolution phases of LPS/TLR4 activation in macrophages.
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Affiliation(s)
- Antoni Olona
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK
| | - Charlotte Hateley
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK
| | | | - Markus R Wenk
- SLING, Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Federico Torta
- SLING, Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jacques Behmoaras
- Faculty of Medicine, Imperial College London, Hammersmith Hospital, London, UK.,Programme in Cardiovascular and Metabolic Disorders and Centre for Computational Biology, Duke-NUS Medical School Singapore, Republic of Singapore
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81
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Morales M, Xue X. Targeting iron metabolism in cancer therapy. Am J Cancer Res 2021; 11:8412-8429. [PMID: 34373750 PMCID: PMC8344014 DOI: 10.7150/thno.59092] [Citation(s) in RCA: 68] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Accepted: 07/10/2021] [Indexed: 02/06/2023] Open
Abstract
Iron is a critical component of many cellular functions including DNA replication and repair, and it is essential for cell vitality. As an essential element, iron is critical for maintaining human health. However, excess iron can be highly toxic, resulting in oxidative DNA damage. Many studies have observed significant associations between iron and cancer, and the association appears to be more than just coincidental. The chief characteristic of cancers, hyper-proliferation, makes them even more dependent on iron than normal cells. Cancer therapeutics are becoming as diverse as the disease itself. Targeting iron metabolism in cancer cells is an emerging, formidable field of therapeutics. It is a strategy that is highly diverse with regard to specific targets and the various ways to reach them. This review will discuss the importance of iron metabolism in cancer and highlight the ways in which it is being explored as the medicine of tomorrow.
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82
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Cai Y, Yang Z. Ferroptosis and Its Role in Epilepsy. Front Cell Neurosci 2021; 15:696889. [PMID: 34335189 PMCID: PMC8319604 DOI: 10.3389/fncel.2021.696889] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Accepted: 06/21/2021] [Indexed: 12/30/2022] Open
Abstract
Epilepsy is one of the most common symptoms of many neurological disorders. The typical excessive, synchronous and aberrant firing of neurons originating from different cerebral areas cause spontaneous recurrent epileptic seizures. Prolonged epilepsy can lead to neuronal damage and cell death. The mechanisms underlying epileptic pathogenesis and neuronal death remain unclear. Ferroptosis is a newly defined form of regulated cell death that is characterized by the overload of intracellular iron ions, leading to the accumulation of lethal lipid-based reactive oxygen species (ROS). To date, studies have mainly focused on its role in tumors and various neurological disorders, including epilepsy. Current research shows that inhibition of ferroptosis is likely to be an effective therapeutic approach for epilepsy. In this review, we outline the pathogenesis of ferroptosis, regulatory mechanisms of ferroptosis, related regulatory molecules, and their effects on epilepsy, providing a new direction for discovering new therapeutic targets in epilepsy.
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Affiliation(s)
| | - Zhiquan Yang
- Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China
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83
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Mühlenhoff U, Braymer JJ, Christ S, Rietzschel N, Uzarska MA, Weiler BD, Lill R. Glutaredoxins and iron-sulfur protein biogenesis at the interface of redox biology and iron metabolism. Biol Chem 2021; 401:1407-1428. [PMID: 33031050 DOI: 10.1515/hsz-2020-0237] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/21/2020] [Indexed: 11/15/2022]
Abstract
The physiological roles of the intracellular iron and redox regulatory systems are intimately linked. Iron is an essential trace element for most organisms, yet elevated cellular iron levels are a potent generator and amplifier of reactive oxygen species and redox stress. Proteins binding iron or iron-sulfur (Fe/S) clusters, are particularly sensitive to oxidative damage and require protection from the cellular oxidative stress protection systems. In addition, key components of these systems, most prominently glutathione and monothiol glutaredoxins are involved in the biogenesis of cellular Fe/S proteins. In this review, we address the biochemical role of glutathione and glutaredoxins in cellular Fe/S protein assembly in eukaryotic cells. We also summarize the recent developments in the role of cytosolic glutaredoxins in iron metabolism, in particular the regulation of fungal iron homeostasis. Finally, we discuss recent insights into the interplay of the cellular thiol redox balance and oxygen with that of Fe/S protein biogenesis in eukaryotes.
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Affiliation(s)
- Ulrich Mühlenhoff
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany.,SYNMIKRO Center for Synthetic Microbiology, Philipps-Universität Marburg, Hans-Meerwein-Str., D-35043Marburg, Germany
| | - Joseph J Braymer
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany.,SYNMIKRO Center for Synthetic Microbiology, Philipps-Universität Marburg, Hans-Meerwein-Str., D-35043Marburg, Germany
| | - Stefan Christ
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany
| | - Nicole Rietzschel
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany
| | - Marta A Uzarska
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany.,Intercollegiate Faculty of Biotechnology, University of Gdansk, Abrahama 58, 80-307Gdansk, Poland
| | - Benjamin D Weiler
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany
| | - Roland Lill
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032Marburg, Germany.,SYNMIKRO Center for Synthetic Microbiology, Philipps-Universität Marburg, Hans-Meerwein-Str., D-35043Marburg, Germany
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84
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Abbasi U, Abbina S, Gill A, Takuechi LE, Kizhakkedathu JN. Role of Iron in the Molecular Pathogenesis of Diseases and Therapeutic Opportunities. ACS Chem Biol 2021; 16:945-972. [PMID: 34102834 DOI: 10.1021/acschembio.1c00122] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Iron is an essential mineral that serves as a prosthetic group for a variety of proteins involved in vital cellular processes. The iron economy within humans is highly conserved in that there is no proper iron excretion pathway. Therefore, iron homeostasis is highly evolved to coordinate iron acquisition, storage, transport, and recycling efficiently. A disturbance in this state can result in excess iron burden in which an ensuing iron-mediated generation of reactive oxygen species imparts widespread oxidative damage to proteins, lipids, and DNA. On the contrary, problems in iron deficiency either due to genetic or nutritional causes can lead to a number of iron deficiency disorders. Iron chelation strategies have been in the works since the early 1900s, and they still remain the most viable therapeutic approach to mitigate the toxic side effects of excess iron. Intense investigations on improving the efficacy of chelation strategies while being well tolerated and accepted by patients have been a particular focus for many researchers over the past 30 years. Moreover, recent advances in our understanding on the role of iron in the pathogenesis of different diseases (both in iron overload and iron deficiency conditions) motivate the need to develop new therapeutics. We summarized recent investigations into the role of iron in health and disease conditions, iron chelation, and iron delivery strategies. Information regarding small molecule as well as macromolecular approaches and how they are employed within different disease pathogenesis such as primary and secondary iron overload diseases, cancer, diabetes, neurodegenerative diseases, infections, and in iron deficiency is provided.
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Affiliation(s)
- Usama Abbasi
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Srinivas Abbina
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Arshdeep Gill
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
| | - Lily E. Takuechi
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
| | - Jayachandran N. Kizhakkedathu
- Centre for Blood Research, Life Sciences Institute, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
- Department of Pathology and Laboratory Medicine, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z7
- Department of Chemistry, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z1
- The School of Biomedical Engineering, The University of British Columbia, Vancouver, British Columbia, Canada V6T 1Z3
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85
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Lill R. From the discovery to molecular understanding of cellular iron-sulfur protein biogenesis. Biol Chem 2021; 401:855-876. [PMID: 32229650 DOI: 10.1515/hsz-2020-0117] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 03/10/2020] [Indexed: 12/23/2022]
Abstract
Protein cofactors often are the business ends of proteins, and are either synthesized inside cells or are taken up from the nutrition. A cofactor that strictly needs to be synthesized by cells is the iron-sulfur (Fe/S) cluster. This evolutionary ancient compound performs numerous biochemical functions including electron transfer, catalysis, sulfur mobilization, regulation and protein stabilization. Since the discovery of eukaryotic Fe/S protein biogenesis two decades ago, more than 30 biogenesis factors have been identified in mitochondria and cytosol. They support the synthesis, trafficking and target-specific insertion of Fe/S clusters. In this review, I first summarize what led to the initial discovery of Fe/S protein biogenesis in yeast. I then discuss the function and localization of Fe/S proteins in (non-green) eukaryotes. The major part of the review provides a detailed synopsis of the three major steps of mitochondrial Fe/S protein biogenesis, i.e. the de novo synthesis of a [2Fe-2S] cluster on a scaffold protein, the Hsp70 chaperone-mediated transfer of the cluster and integration into [2Fe-2S] recipient apoproteins, and the reductive fusion of [2Fe-2S] to [4Fe-4S] clusters and their subsequent assembly into target apoproteins. Finally, I summarize the current knowledge of the mechanisms underlying the maturation of cytosolic and nuclear Fe/S proteins.
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Affiliation(s)
- Roland Lill
- Institut für Zytobiologie, Philipps-Universität Marburg, Robert-Koch-Str. 6, D-35032 Marburg, Germany.,SYNMIKRO Center for Synthetic Microbiology, Philipps-Universität Marburg, Hans-Meerwein-Str., D-35043 Marburg, Germany
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86
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Khasheii B, Mahmoodi P, Mohammadzadeh A. Siderophores: Importance in bacterial pathogenesis and applications in medicine and industry. Microbiol Res 2021; 250:126790. [PMID: 34098495 DOI: 10.1016/j.micres.2021.126790] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 05/14/2021] [Accepted: 05/24/2021] [Indexed: 12/21/2022]
Abstract
Iron is an essential element for all microorganisms. Siderophores are low-weight, high-affinity iron chelating molecules produced in response to iron deficiency by Gram-positive and Gram-negative bacteria which also known as essential virulence factors of bacteria. Several studies have indicated that defective production and/or function of these molecules as well as iron acquisition systems in pathogens are associated with a reduction in pathogenicity of bacteria. Because of their potential role in various biological pathways, siderophores have been received special attention as secondary metabolites. Siderophores can detect iron levels in a variety of environments with a biosensor function. In medicine, siderophores are used to deliver antibiotics (Trojan horse strategy) to resistant bacteria and to treat diseases such as cancer and malaria. In this review, we discuss the iron acquisition pathways in Gram-positive and -negative bacteria, importance of siderophore production in pathogenesis of bacteria, classification of siderophores, and main applications of siderophores in medicine and industry.
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Affiliation(s)
- Behnoush Khasheii
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
| | - Pezhman Mahmoodi
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran.
| | - Abdolmajid Mohammadzadeh
- Department of Pathobiology, Faculty of Veterinary Science, Bu-Ali Sina University, Hamedan, Iran
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87
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Lee MR, Kim JC, Park SE, Lee SJ, Kim WJ, Lee DH, Kim JS. Interactive Gene Expression Between Metarhizium anisopliae JEF-290 and Longhorned Tick Haemaphysalis longicornis at Early Stage of Infection. Front Physiol 2021; 12:643389. [PMID: 34093222 PMCID: PMC8170561 DOI: 10.3389/fphys.2021.643389] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 04/22/2021] [Indexed: 12/12/2022] Open
Abstract
The longhorned tick, Haemaphysalis longicornis (Acari: Ixodidae), is a hard tick and a vector for severe fever with thrombocytopenia syndrome (SFTS) virus. The number of patients infected with SFTS is rapidly increasing. Recently, the invertebrate pathogen Metarhizium anisopliae JEF-290 was reported to be useful to control the tick as an alternative to chemical acaricides, which are not easily applicable in human living areas where the tick is widely spread. In this study, we analyzed how the tick and the fungal pathogen interact at the transcriptional level. Field-collected tick nymphs were treated with JEF-290 conidia at 1 × 108 conidia/ml. In the early stage of infection with 2.5% mortality, the infected ticks were subjected to RNA sequencing, and non-infected ticks and fungal masses served as controls. Fungus and tick genes were mostly up-regulated at the early stage of infection. In the gene set enrichment analysis of the infecting fungus, catabolic processes that included lipids, phospholipids, and detoxification processes, the response to oxidative stress, and toxic substances were significantly up-regulated. In this fungal up-regulation, various lipase, antioxidant enzyme, and hydrolase genes were highly transcribed. The gene set enrichment analysis of the infected tick showed that many peptide synthesis processes including translation, peptide metabolism, ribonucleotide metabolism, and energy production processes that included ATP generation and ADP metabolism were significantly up-regulated. Structurally, mitochondria and ribosome subunit genes in ticks were highly transcribed to upregulate these processes. Together these results indicate that JEF-290 initiates process that infects the tick while the tick actively defends against the fungal attack. This work provides background to improve our understanding of the early stage of fungal infection in longhorned tick.
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Affiliation(s)
- Mi Rong Lee
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea
| | - Jong Cheol Kim
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea
| | - So Eun Park
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea
| | - Se Jin Lee
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea
| | - Woo Jin Kim
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea
| | - Doo-Hyung Lee
- Department of Life Sciences, College of Bionano, Gachon University, Seongnam, South Korea
| | - Jae Su Kim
- Department of Agricultural Biology, College of Agriculture and Life Sciences, Jeonbuk National University, Jeonju, South Korea.,Department of Agricultural Convergence Technology, Jeonbuk National University, Jeonju, South Korea
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88
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Tajes M, Díez-López C, Enjuanes C, Moliner P, Ferreiro JL, Garay A, Jiménez-Marrero S, Yun S, Sosa SG, Alcoberro L, González-Costello J, García-Romero E, Yañez-Bisbe L, Benito B, Comín-Colet J. Neurohormonal activation induces intracellular iron deficiency and mitochondrial dysfunction in cardiac cells. Cell Biosci 2021; 11:89. [PMID: 34001233 PMCID: PMC8130332 DOI: 10.1186/s13578-021-00605-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Accepted: 05/06/2021] [Indexed: 12/17/2022] Open
Abstract
Background Iron deficiency (ID) is common in patients with heart failure (HF) and is associated with poor outcomes, yet its role in the pathophysiology of HF is not well-defined. We sought to determine the consequences of HF neurohormonal activation in iron homeostasis and mitochondrial function in cardiac cells. Methods HF was induced in C57BL/6 mice by using isoproterenol osmotic pumps and embryonic rat heart-derived H9c2 cells were subsequently challenged with Angiotensin II and/or Norepinephrine. The expression of several genes and proteins related to intracellular iron metabolism were assessed by Real time-PCR and immunoblotting, respectively. The intracellular iron levels were also determined. Mitochondrial function was analyzed by studying the mitochondrial membrane potential, the accumulation of radical oxygen species (ROS) and the adenosine triphosphate (ATP) production. Results Hearts from isoproterenol-stimulated mice showed a decreased in both mRNA and protein levels of iron regulatory proteins, transferrin receptor 1, ferroportin 1 and hepcidin compared to control mice. Furthermore, mitoferrin 2 and mitochondrial ferritin were also downregulated in the hearts from HF mice. Similar data regarding these key iron regulatory molecules were found in the H9c2 cells challenged with neurohormonal stimuli. Accordingly, a depletion of intracellular iron levels was found in the stimulated cells compared to non-stimulated cells, as well as in the hearts from the isoproterenol-induced HF mice. Finally, neurohormonal activation impaired mitochondrial function as indicated by the accumulation of ROS, the impaired mitochondrial membrane potential and the decrease in the ATP levels in the cardiac cells. Conclusions HF characteristic neurohormonal activation induced changes in the regulation of key molecules involved in iron homeostasis, reduced intracellular iron levels and impaired mitochondrial function. The current results suggest that iron could be involved in the pathophysiology of HF.
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Affiliation(s)
- M Tajes
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - C Díez-López
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Advanced Heart Failure and Heart Transplant Unit, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - C Enjuanes
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - P Moliner
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J L Ferreiro
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - A Garay
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Jiménez-Marrero
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S Yun
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Department of Internal Medicine, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - S G Sosa
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - L Alcoberro
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - J González-Costello
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Advanced Heart Failure and Heart Transplant Unit, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain
| | - E García-Romero
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain.,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain.,Advanced Heart Failure and Heart Transplant Unit, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain
| | - L Yañez-Bisbe
- Vascular Biology and Metabolism Program, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain
| | - B Benito
- Vascular Biology and Metabolism Program, Vall d'Hebron Research Institute (VHIR), Barcelona, Spain.,Cardiology Department, Hospital Vall d'Hebron Hospital, Barcelona, Spain.,Department of Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - J Comín-Colet
- Bio-Heart Cardiovascular Diseases Research Group, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet de Llobregat, Barcelona, Spain. .,Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain. .,Community Heart Failure Program, Cardiology Department, Bellvitge University Hospital, L'Hospitalet de Llobregat, Barcelona, Spain. .,Department of Clinical Sciences, School of Medicine, University of Barcelona, Barcelona, Spain.
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89
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Tada T, Zhang Y, Fujita H, Tokunaga K. MARCH8: the tie that binds to viruses. FEBS J 2021; 289:3642-3654. [PMID: 33993615 DOI: 10.1111/febs.16017] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/23/2021] [Accepted: 05/12/2021] [Indexed: 11/28/2022]
Abstract
Membrane-associated RING-CH (MARCH) family member proteins are RING-finger E3 ubiquitin ligases that are known to downregulate cellular transmembrane proteins. MARCH8 is a novel antiviral factor that inhibits HIV-1 envelope glycoprotein and vesicular stomatitis virus G by downregulating these envelope glycoproteins from the cell surface, resulting in their reduced incorporation into virions. More recently, we have found that MARCH8 reduces viral infectivity via two different mechanisms. Additionally, several groups have reported further antiviral or virus-supportive functions of the MARCH8 protein and its other cellular mechanisms. In this review, we summarize the current knowledge about the molecular mechanisms by which MARCH8 can regulate cellular homeostasis and inhibit and occasionally support enveloped virus infection.
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Affiliation(s)
- Takuya Tada
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan.,Department of Microbiology, NYU School of Medicine, NY, USA
| | - Yanzhao Zhang
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
| | - Hideaki Fujita
- Faculty of Pharmaceutical Sciences, Nagasaki International University, Japan
| | - Kenzo Tokunaga
- Department of Pathology, National Institute of Infectious Diseases, Tokyo, Japan
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90
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Klebba PE, Newton SMC, Six DA, Kumar A, Yang T, Nairn BL, Munger C, Chakravorty S. Iron Acquisition Systems of Gram-negative Bacterial Pathogens Define TonB-Dependent Pathways to Novel Antibiotics. Chem Rev 2021; 121:5193-5239. [PMID: 33724814 PMCID: PMC8687107 DOI: 10.1021/acs.chemrev.0c01005] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Iron is an indispensable metabolic cofactor in both pro- and eukaryotes, which engenders a natural competition for the metal between bacterial pathogens and their human or animal hosts. Bacteria secrete siderophores that extract Fe3+ from tissues, fluids, cells, and proteins; the ligand gated porins of the Gram-negative bacterial outer membrane actively acquire the resulting ferric siderophores, as well as other iron-containing molecules like heme. Conversely, eukaryotic hosts combat bacterial iron scavenging by sequestering Fe3+ in binding proteins and ferritin. The variety of iron uptake systems in Gram-negative bacterial pathogens illustrates a range of chemical and biochemical mechanisms that facilitate microbial pathogenesis. This document attempts to summarize and understand these processes, to guide discovery of immunological or chemical interventions that may thwart infectious disease.
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Affiliation(s)
- Phillip E Klebba
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506, United States
| | - Salete M C Newton
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506, United States
| | - David A Six
- Venatorx Pharmaceuticals, Inc., 30 Spring Mill Drive, Malvern, Pennsylvania 19355, United States
| | - Ashish Kumar
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506, United States
| | - Taihao Yang
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506, United States
| | - Brittany L Nairn
- Department of Biological Sciences, Bethel University, 3900 Bethel Drive, St. Paul, Minnesota 55112, United States
| | - Colton Munger
- Department of Biochemistry and Molecular Biophysics, Kansas State University, Manhattan, Kansas 66506, United States
| | - Somnath Chakravorty
- Jacobs School of Medicine and Biomedical Sciences, SUNY Buffalo, Buffalo, New York 14203, United States
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91
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Ghosh MC, Zhang DL, Ollivierre WH, Noguchi A, Springer DA, Linehan WM, Rouault TA. Therapeutic inhibition of HIF-2α reverses polycythemia and pulmonary hypertension in murine models of human diseases. Blood 2021; 137:2509-2519. [PMID: 33512384 PMCID: PMC8109019 DOI: 10.1182/blood.2020009138] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Accepted: 12/04/2020] [Indexed: 12/20/2022] Open
Abstract
Polycythemia and pulmonary hypertension are 2 human diseases for which better therapies are needed. Upregulation of hypoxia-inducible factor-2α (HIF-2α) and its target genes, erythropoietin (EPO) and endothelin-1, causes polycythemia and pulmonary hypertension in patients with Chuvash polycythemia who are homozygous for the R200W mutation in the von Hippel Lindau (VHL) gene and in a murine mouse model of Chuvash polycythemia that bears the same homozygous VhlR200W mutation. Moreover, the aged VhlR200W mice developed pulmonary fibrosis, most likely due to the increased expression of Cxcl-12, another Hif-2α target. Patients with mutations in iron regulatory protein 1 (IRP1) also develop polycythemia, and Irp1-knockout (Irp1-KO) mice exhibit polycythemia, pulmonary hypertension, and cardiac fibrosis attributable to translational derepression of Hif-2α, and the resultant high expression of the Hif-2α targets EPO, endothelin-1, and Cxcl-12. In this study, we inactivated Hif-2α with the second-generation allosteric HIF-2α inhibitor MK-6482 in VhlR200W, Irp1-KO, and double-mutant VhlR200W;Irp1-KO mice. MK-6482 treatment decreased EPO production and reversed polycythemia in all 3 mouse models. Drug treatment also decreased right ventricular pressure and mitigated pulmonary hypertension in VhlR200W, Irp1-KO, and VhlR200W;Irp1-KO mice to near normal wild-type levels and normalized the movement of the cardiac interventricular septum in VhlR200Wmice. MK-6482 treatment reduced the increased expression of Cxcl-12, which, in association with CXCR4, mediates fibrocyte influx into the lungs, potentially causing pulmonary fibrosis. Our results suggest that oral intake of MK-6482 could represent a new approach to treatment of patients with polycythemia, pulmonary hypertension, pulmonary fibrosis, and complications caused by elevated expression of HIF-2α.
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Affiliation(s)
- Manik C Ghosh
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development
| | - De-Liang Zhang
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development
| | - Wade H Ollivierre
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development
| | - Audrey Noguchi
- Murine Phenotyping Core, National Heart, Lung, and Blood Institute, and
| | | | - W Marston Linehan
- Urologic Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD
| | - Tracey A Rouault
- Molecular Medicine Branch, Eunice Kennedy Shriver National Institute of Child Health and Human Development
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92
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Wang B, Thompson MS, Adkins KM. Characteristics of the Iron-responsive Element (IRE) Stems in the Untranslated Regions of Animal mRNAs. Open Biochem J 2021. [DOI: 10.2174/1874091x02115010026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Background:
Iron-responsive Elements (IREs) are hairpin structures located in the 5’ or 3’ untranslated region of some animal mRNAs. IREs have a highly conserved terminal loop and a UGC/C or C bulge five bases upstream of the terminal loop, which divides the hairpin stem into an upper stem and a lower stem.
Objective:
The objective of this study was to investigate the base-pair composition of the upper and lower stems of IREs to determine whether they are highly conserved among mRNAs from different genes.
Methods:
The mRNA sequences of six 5’IREs and five 3’IREs from several animal species were retrieved from the National Center for Biotechnology Information. The folding free energy of each IRE mRNA sequence was predicted using the RNAfold WebServer.
Results:
We found that the upper and lower stems of IREs are not highly conserved among the mRNAs of different genes. There are no statistically significant differences in the IRE structures or folding free energies between mammalian and non-mammalian species relative to either the ferritin heavy chain 5’IRE or ferroportin 5’IRE. There are no overall significant differences in the folding free energies between UGC/C-containing 5’IREs and C-bulge-containing 5’IREs, or between 5’IREs and 3’IREs.
Conclusion:
Further studies are needed to investigate whether the variations in IRE stem composition are responsible for fine-tuning the IRE/Iron-Regulatory Protein interactions among different mRNAs to maintain the balance of cellular iron metabolism, and to identify whether evolutionary processes drive the base-pair composition of the upper and lower stems of IREs toward any particular configuration.
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93
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Ma L, Gholam Azad M, Dharmasivam M, Richardson V, Quinn RJ, Feng Y, Pountney DL, Tonissen KF, Mellick GD, Yanatori I, Richardson DR. Parkinson's disease: Alterations in iron and redox biology as a key to unlock therapeutic strategies. Redox Biol 2021; 41:101896. [PMID: 33799121 PMCID: PMC8044696 DOI: 10.1016/j.redox.2021.101896] [Citation(s) in RCA: 56] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 02/05/2021] [Accepted: 02/09/2021] [Indexed: 12/13/2022] Open
Abstract
A plethora of studies indicate that iron metabolism is dysregulated in Parkinson's disease (PD). The literature reveals well-documented alterations consistent with established dogma, but also intriguing paradoxical observations requiring mechanistic dissection. An important fact is the iron loading in dopaminergic neurons of the substantia nigra pars compacta (SNpc), which are the cells primarily affected in PD. Assessment of these changes reveal increased expression of proteins critical for iron uptake, namely transferrin receptor 1 and the divalent metal transporter 1 (DMT1), and decreased expression of the iron exporter, ferroportin-1 (FPN1). Consistent with this is the activation of iron regulator protein (IRP) RNA-binding activity, which is an important regulator of iron homeostasis, with its activation indicating cytosolic iron deficiency. In fact, IRPs bind to iron-responsive elements (IREs) in the 3ꞌ untranslated region (UTR) of certain mRNAs to stabilize their half-life, while binding to the 5ꞌ UTR prevents translation. Iron loading of dopaminergic neurons in PD may occur through these mechanisms, leading to increased neuronal iron and iron-mediated reactive oxygen species (ROS) generation. The "gold standard" histological marker of PD, Lewy bodies, are mainly composed of α-synuclein, the expression of which is markedly increased in PD. Of note, an atypical IRE exists in the α-synuclein 5ꞌ UTR that may explain its up-regulation by increased iron. This dysregulation could be impacted by the unique autonomous pacemaking of dopaminergic neurons of the SNpc that engages L-type Ca+2 channels, which imparts a bioenergetic energy deficit and mitochondrial redox stress. This dysfunction could then drive alterations in iron trafficking that attempt to rescue energy deficits such as the increased iron uptake to provide iron for key electron transport proteins. Considering the increased iron-loading in PD brains, therapies utilizing limited iron chelation have shown success. Greater therapeutic advancements should be possible once the exact molecular pathways of iron processing are dissected.
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Affiliation(s)
- L Ma
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - M Gholam Azad
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - M Dharmasivam
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - V Richardson
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - R J Quinn
- Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - Y Feng
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - D L Pountney
- School of Medical Science, Griffith University, Gold Coast, Queensland, Australia
| | - K F Tonissen
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - G D Mellick
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia
| | - I Yanatori
- Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan
| | - D R Richardson
- School of Environment and Science, Griffith University Nathan, Brisbane, Queensland, Australia; Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Centre for Cancer Cell Biology and Drug Discovery, Griffith Institute for Drug Discovery, Griffith University, Nathan, Brisbane, Queensland, Australia; Department of Pathology and Biological Responses, Nagoya University Graduate School of Medicine, Nagoya, 466-8550, Japan.
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94
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Chang HC, Shapiro JS, Jiang X, Senyei G, Sato T, Geier J, Sawicki KT, Ardehali H. Augmenter of liver regeneration regulates cellular iron homeostasis by modulating mitochondrial transport of ATP-binding cassette B8. eLife 2021; 10:e65158. [PMID: 33835027 PMCID: PMC8055271 DOI: 10.7554/elife.65158] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 04/06/2021] [Indexed: 12/15/2022] Open
Abstract
Chronic loss of Augmenter of Liver Regeneration (ALR) results in mitochondrial myopathy with cataracts; however, the mechanism for this disorder remains unclear. Here, we demonstrate that loss of ALR, a principal component of the MIA40/ALR protein import pathway, results in impaired cytosolic Fe/S cluster biogenesis in mammalian cells. Mechanistically, MIA40/ALR facilitates the mitochondrial import of ATP-binding cassette (ABC)-B8, an inner mitochondrial membrane protein required for cytoplasmic Fe/S cluster maturation, through physical interaction with ABCB8. Downregulation of ALR impairs mitochondrial ABCB8 import, reduces cytoplasmic Fe/S cluster maturation, and increases cellular iron through the iron regulatory protein-iron response element system. Our finding thus provides a mechanistic link between MIA40/ALR import machinery and cytosolic Fe/S cluster maturation through the mitochondrial import of ABCB8, and offers a potential explanation for the pathology seen in patients with ALR mutations.
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Affiliation(s)
- Hsiang-Chun Chang
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Jason Solomon Shapiro
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Xinghang Jiang
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Grant Senyei
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Teruki Sato
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Justin Geier
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Konrad T Sawicki
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
| | - Hossein Ardehali
- Feinberg Cardiovascular and Renal Research Institute, Northwestern University School of MedicineChicagoUnited States
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95
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Lischka A, Betty EL, Braid HE, Pook CJ, Gaw S, Bolstad KSR. Trace element concentrations, including Cd and Hg, in long-finned pilot whales (Globicephala melas edwardii) mass stranded on the New Zealand coast. MARINE POLLUTION BULLETIN 2021; 165:112084. [PMID: 33582419 DOI: 10.1016/j.marpolbul.2021.112084] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2020] [Revised: 01/18/2021] [Accepted: 01/19/2021] [Indexed: 06/12/2023]
Abstract
The Southern Hemisphere long-finned pilot whale (Globicephala melas edwardii) is a top predator in the New Zealand pelagic food web, feeding predominantly on arrow squids. This study quantified trace element concentrations (Al, As, Cd, Co, Cr, Cu, Fe, Hg, Ni, Mn, Pb, Se, V, Zn) in four tissues (blubber, kidney, liver, muscle) from 21 individuals from stranding sites in New Zealand. Maximum Cd and Hg concentrations were measured in liver and kidney, respectively. Selenium had a positive correlation with Cd and Hg, suggesting the involvement of Se in Cd and Hg detoxification. Arrow squids from the whales' stomach contents were DNA barcoded and identified as Nototodarus sloanii. Trace element concentrations were measured in squid samples from the whale stomach contents. The significant correlation for Hg between the squid tissue and the whale tissue suggests that arrow squids play a major role in trace element uptake by G. m. edwardii.
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Affiliation(s)
- A Lischka
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand.
| | - E L Betty
- Cetacean Ecology Research Group, School of Natural and Computational Sciences, College of Sciences, Massey University, Private Bag 102904, Auckland 0745, New Zealand
| | - H E Braid
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
| | - C J Pook
- Liggins Institute, University of Auckland, 85 Park Rd, Grafton, Auckland 1023, New Zealand
| | - S Gaw
- School of Physical and Chemical Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand
| | - K S R Bolstad
- AUT Lab for Cephalopod Ecology & Systematics, School of Science, Auckland University of Technology, Private Bag 92006, Auckland 1142, New Zealand
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96
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Extracellular α-Synuclein Modulates Iron Metabolism Related Proteins via Endoplasmic Reticulum Stress in MES23.5 Dopaminergic Cells. Neurochem Res 2021; 46:1502-1513. [PMID: 33704649 DOI: 10.1007/s11064-021-03292-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/21/2021] [Accepted: 02/26/2021] [Indexed: 02/07/2023]
Abstract
Alpha-synuclein plays a vital role in the pathology of Parkinson's disease (PD). Spreading of α-synuclein in neighboring cells was believed to contribute to progression in PD. How α-synuclein transmission affects adjacent cells is not full elucidated. Here, we used recombinant α-synuclein to mimic intercellular transmitted α-synuclein in MES23.5 dopaminergic cells, to investigate whether and how it could modulate iron metabolism. The results showed that α-synuclein treatment up-regulated divalent metal transporter 1 (DMT1) and down-regulated iron transporter (FPN), also up-regulated iron regulatory protein 1 (IRP1) protein levels and hepcidin mRNA levels. Endocytosis inhibitor dynasore pretreatment completely abolished and even reversed the upregulation of DMT1 and IRP1 induced by α-synuclein, however, FPN down-regulation was partially blocked by dynasore. Autophagy-inducing agent rapamycin reversed DMT1 up-regulation and FPN down-regulation, and fully blocked the upregulation of IRP1. Elevated hepcidin levels induced by α-synuclein was fully blocked by dynasore pretreatment, however, even higher with rapamycin pretreatment. Alpha-synuclein treatment triggered endoplasmic reticulum (ER) stress. ER stress inducer thapsigargin induced similar responses elicited by α-synuclein. ER stress inhibitor salubrinal blocked the up-regulation of IRP1 and hepcidin, as well as DMT1 up-regulation and FPN down-regulation, also dramatically abolished cAMP-response elements binding protein phosphorylation induced by α-synuclein. Taken together, these finding indicated that extracellular α-synuclein could regulate cellular iron metabolism, probably mediated by ER stress. It provides novel evidence to elucidate the relationships between transmitted α-synuclein and iron metabolism disturbance in PD.
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97
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Ding H, Zhao Y, Yu X, Chen L, Han J, Feng J. Tolerable upper intake level of iron damages the liver of weaned piglets. J Anim Physiol Anim Nutr (Berl) 2021; 105:668-677. [PMID: 33683742 DOI: 10.1111/jpn.13521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 11/25/2020] [Accepted: 02/15/2021] [Indexed: 01/03/2023]
Abstract
Iron is one of the essential trace elements, which is often supplemented as an additive to meet the growing needs of toddlers and young animals. Recommended nutrient intake (RNI) and tolerable upper intake levels (UL) are always set when the iron is supplemented. The purpose of this study was to evaluate the subacute (28 days) toxicity of UL iron to weaned piglet liver. Thirty 23-day-old weaned piglets were divided into three groups and, respectively, supplemented with 100, 300 or 3000 (UL) mg/kg iron. UL iron caused significant weight loss in 4th week (p < 0.05). Divalent metal transporter 1(DMT1) decreased significantly, ferroportin 1 and ferritin increased significantly in the liver of UL iron group (p < 0.05). Although there was no significant effect on liver morphology, UL iron significantly increased hepatic iron, reactive oxygen species (ROS), malondialdehyde (MDA) and protein carbonyl (p < 0.05). UL iron significantly reduced glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), catalase (CAT) and total anti-oxidation capacity (T-AOC) in the liver (p < 0.05). Nuclear factor erythroid 2-related factor 2 (Nrf2) activated subunits of glutamate cysteine ligase (Gclc) and glutathione S-transferase A1 (Gsta1) upregulation in the UL iron group liver, thereby increasing resistance to oxidative stress. In conclusion, UL iron supplementation altered iron metabolism, generated free radicals, reduced antioxidant enzyme activity and activated Nrf2 signalling pathway in the weaned piglet liver.
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Affiliation(s)
- Haoxuan Ding
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | - Yang Zhao
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | - Xiaonan Yu
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | - Lingjun Chen
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | - Jianan Han
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
| | - Jie Feng
- College of Animal Sciences, Zhejiang University, Key Laboratory of Animal Feed and Nutrition of Zhejiang Province, Hangzhou, China
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98
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Wang X, Wu H, Zhao L, Liu Z, Qi M, Jin Y, Liu W. FLCN regulates transferrin receptor 1 transport and iron homeostasis. J Biol Chem 2021; 296:100426. [PMID: 33609526 PMCID: PMC7995610 DOI: 10.1016/j.jbc.2021.100426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2020] [Revised: 01/19/2021] [Accepted: 02/12/2021] [Indexed: 11/30/2022] Open
Abstract
Birt–Hogg–Dubé (BHD) syndrome is a multiorgan disorder caused by inactivation of the folliculin (FLCN) protein. Previously, we identified FLCN as a binding protein of Rab11A, a key regulator of the endocytic recycling pathway. This finding implies that the abnormal localization of specific proteins whose transport requires the FLCN-Rab11A complex may contribute to BHD. Here, we used human kidney-derived HEK293 cells as a model, and we report that FLCN promotes the binding of Rab11A with transferrin receptor 1 (TfR1), which is required for iron uptake through continuous trafficking between the cell surface and the cytoplasm. Loss of FLCN attenuated the Rab11A–TfR1 interaction, resulting in delayed recycling transport of TfR1. This delay caused an iron deficiency condition that induced hypoxia-inducible factor (HIF) activity, which was reversed by iron supplementation. In a Drosophila model of BHD syndrome, we further demonstrated that the phenotype of BHD mutant larvae was substantially rescued by an iron-rich diet. These findings reveal a conserved function of FLCN in iron metabolism and may help to elucidate the mechanisms driving BHD syndrome.
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Affiliation(s)
- Xiaojuan Wang
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China
| | - Hanjie Wu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China
| | - Lingling Zhao
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China
| | - Zeyao Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China
| | - Maozhen Qi
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China
| | - Yaping Jin
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China.
| | - Wei Liu
- College of Veterinary Medicine, Northwest A&F University, Yangling, Shanxi, China.
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99
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Ito J, Omiya S, Rusu MC, Ueda H, Murakawa T, Tanada Y, Abe H, Nakahara K, Asahi M, Taneike M, Nishida K, Shah AM, Otsu K. Iron derived from autophagy-mediated ferritin degradation induces cardiomyocyte death and heart failure in mice. eLife 2021; 10:e62174. [PMID: 33526170 PMCID: PMC7853718 DOI: 10.7554/elife.62174] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 01/08/2021] [Indexed: 12/29/2022] Open
Abstract
Heart failure is a major public health problem, and abnormal iron metabolism is common in patients with heart failure. Although iron is necessary for metabolic homeostasis, it induces a programmed necrosis. Iron release from ferritin storage is through nuclear receptor coactivator 4 (NCOA4)-mediated autophagic degradation, known as ferritinophagy. However, the role of ferritinophagy in the stressed heart remains unclear. Deletion of Ncoa4 in mouse hearts reduced left ventricular chamber size and improved cardiac function along with the attenuation of the upregulation of ferritinophagy-mediated ferritin degradation 4 weeks after pressure overload. Free ferrous iron overload and increased lipid peroxidation were suppressed in NCOA4-deficient hearts. A potent inhibitor of lipid peroxidation, ferrostatin-1, significantly mitigated the development of pressure overload-induced dilated cardiomyopathy in wild-type mice. Thus, the activation of ferritinophagy results in the development of heart failure, whereas inhibition of this process protects the heart against hemodynamic stress.
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Affiliation(s)
- Jumpei Ito
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
- Department of Pharmacology, Faculty of Medicine, Osaka Medical CollegeOsakaJapan
| | - Shigemiki Omiya
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Mara-Camelia Rusu
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Hiromichi Ueda
- Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka UniversityOsakaJapan
| | - Tomokazu Murakawa
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Yohei Tanada
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Hajime Abe
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Kazuki Nakahara
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Michio Asahi
- Department of Pharmacology, Faculty of Medicine, Osaka Medical CollegeOsakaJapan
| | - Manabu Taneike
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
- Department of Cardiovascular Medicine, Graduate School of Medicine, Osaka UniversityOsakaJapan
| | - Kazuhiko Nishida
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Ajay M Shah
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
| | - Kinya Otsu
- The School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of ExcellenceLondonUnited Kingdom
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100
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tRNA Biology in the Pathogenesis of Diabetes: Role of Genetic and Environmental Factors. Int J Mol Sci 2021; 22:ijms22020496. [PMID: 33419045 PMCID: PMC7825315 DOI: 10.3390/ijms22020496] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/02/2021] [Accepted: 01/03/2021] [Indexed: 02/07/2023] Open
Abstract
The global rise in type 2 diabetes results from a combination of genetic predisposition with environmental assaults that negatively affect insulin action in peripheral tissues and impair pancreatic β-cell function and survival. Nongenetic heritability of metabolic traits may be an important contributor to the diabetes epidemic. Transfer RNAs (tRNAs) are noncoding RNA molecules that play a crucial role in protein synthesis. tRNAs also have noncanonical functions through which they control a variety of biological processes. Genetic and environmental effects on tRNAs have emerged as novel contributors to the pathogenesis of diabetes. Indeed, altered tRNA aminoacylation, modification, and fragmentation are associated with β-cell failure, obesity, and insulin resistance. Moreover, diet-induced tRNA fragments have been linked with intergenerational inheritance of metabolic traits. Here, we provide a comprehensive review of how perturbations in tRNA biology play a role in the pathogenesis of monogenic and type 2 diabetes.
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