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Zhou S, Wang Z, Wang T, Peng C, Zhang J, Liu C, Xu J, Zhang Y, Zhang L, Luo L, Yan X. Salvia miltiorrhiza Bge. processed with porcine cardiac blood inhibited GLRX5-mediated ferroptosis alleviating cerebral ischemia-reperfusion injury. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2024; 129:155622. [PMID: 38677272 DOI: 10.1016/j.phymed.2024.155622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 04/02/2024] [Accepted: 04/09/2024] [Indexed: 04/29/2024]
Abstract
BACKGROUND Cerebral ischemia-reperfusion injury (CIRI) is a destructive adverse reaction of ischemic stroke, leading to high disability and mortality rates. Salvia miltiorrhiza Bge. (Danshen, DS) processed with porcine cardiac blood (PCB-DS), a characteristic processed product, has promising anti-ischemic effects. However, the underlying mechanism of PCB-DS against CIRI remains unclear. PURPOSE Ferroptosis is demonstrated to be involved in CIRI. The aim of this study was to explore the molecular mechanism underlying PCB-DS inhibited GLRX5-mediated ferroptosis alleviating CIRI, which was different from DS. METHODS Quality evaluation of PCB-DS and DS was conducted by UPLC. Pharmacological activities of PCB-DS and DS against CIRI were compared using neurobehavioral scores, infarct volume, proinflammatory factors, and pathological examinations. Proteomics was employed to explore the potential specific mechanism of PCB-DS against CIRI, which was different from DS. Based on the differential protein GLRX5, ferroptosis-related iron, GSH, MDA, SOD, ROS, liperfluo, and mitochondrial morphology were analyzed. Then, the proteins of GLRX5-mediated iron-starvation response and SLC7A11/GPX4 were analyzed. Finally, OGD/R-induced SH-SY5Y cells upon GLRX5 silencing were constructed to demonstrate that PCB-DS improved CIRI by GLRX5-mediated ferroptosis. RESULTS PCB-DS better alleviated CIRI through decreasing neurological score, reducing the infarct volume, and suppressing the release of inflammatory cytokines than DS. Proteomics suggested that PCB-DS may ameliorate CIRI by inhibiting GLRX5-mediated ferroptosis, which was different from DS. PCB-DS reversed the abnormal mitochondrial morphology, iron, GSH, MDA, SOD, ROS, and liperfluo to inhibit ferroptosis in vitro and in vivo. PCB-DS directly activated GLRX5 suppressing the iron-starvation response and downregulated the SLC7A11/GPX4 signaling pathway to inhibit ferroptosis. Finally, silencing GLRX5 activated the iron-starvation response in SH-SY5Y cells and PCB-DS unimproved OGD/R injury upon GLRX5 silencing. CONCLUSION Different from DS, PCB-DS suppressed ferroptosis to alleviate CIRI through inhibiting GLRX5-mediated iron-starvation response. These findings give a comprehensive understanding of the molecular mechanism underlying the effect of PCB-DS against CIRI and provide evidence to assess the product in clinical studies.
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Affiliation(s)
- Shikang Zhou
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China; Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China
| | - Ziqi Wang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China
| | - Ting Wang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China
| | - Chunhua Peng
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China
| | - Jinyun Zhang
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China
| | - Chanming Liu
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China
| | - Jianda Xu
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China
| | - Yi Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China.
| | - Li Zhang
- Jiangsu Key Laboratory for High Technology Research of TCM Formulae, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine and Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, Nanjing University of Chinese Medicine, No.138, Xianlin Road, Qixia District, Nanjing 210023, PR China.
| | - Libo Luo
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China.
| | - Xiaojing Yan
- Changzhou Key Laboratory of Human Use Experience Research & Transformation of Menghe Medical Sect, Changzhou Hospital of Chinese Medicinal Affiliated to Nanjing University of Chinese Medicine, No. 25 Heping North Road, Tianning District, Changzhou 213003, PR China.
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Nadimpalli HP, Katsioudi G, Arpa ES, Chikhaoui L, Arpat AB, Liechti A, Palais G, Tessmer C, Hofmann I, Galy B, Gatfield D. Diurnal control of iron responsive element containing mRNAs through iron regulatory proteins IRP1 and IRP2 is mediated by feeding rhythms. Genome Biol 2024; 25:128. [PMID: 38773499 PMCID: PMC11106963 DOI: 10.1186/s13059-024-03270-2] [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: 01/12/2024] [Accepted: 05/09/2024] [Indexed: 05/23/2024] Open
Abstract
BACKGROUND Cellular iron homeostasis is regulated by iron regulatory proteins (IRP1 and IRP2) that sense iron levels (and other metabolic cues) and modulate mRNA translation or stability via interaction with iron regulatory elements (IREs). IRP2 is viewed as the primary regulator in the liver, yet our previous datasets showing diurnal rhythms for certain IRE-containing mRNAs suggest a nuanced temporal control mechanism. The purpose of this study is to gain insights into the daily regulatory dynamics across IRE-bearing mRNAs, specific IRP involvement, and underlying systemic and cellular rhythmicity cues in mouse liver. RESULTS We uncover high-amplitude diurnal oscillations in the regulation of key IRE-containing transcripts in the liver, compatible with maximal IRP activity at the onset of the dark phase. Although IRP2 protein levels also exhibit some diurnal variations and peak at the light-dark transition, ribosome profiling in IRP2-deficient mice reveals that maximal repression of target mRNAs at this timepoint still occurs. We further find that diurnal regulation of IRE-containing mRNAs can continue in the absence of a functional circadian clock as long as feeding is rhythmic. CONCLUSIONS Our findings suggest temporally controlled redundancy in IRP activities, with IRP2 mediating regulation of IRE-containing transcripts in the light phase and redundancy, conceivably with IRP1, at dark onset. Moreover, we highlight the significance of feeding-associated signals in driving rhythmicity. Our work highlights the dynamic nature and regulatory complexity in a metabolic pathway that had previously been considered well-understood.
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Affiliation(s)
| | - Georgia Katsioudi
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Enes Salih Arpa
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Lies Chikhaoui
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Alaaddin Bulak Arpat
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Angelica Liechti
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland
| | - Gaël Palais
- German Cancer Research Center (DKFZ), Division of Virus-Associated Carcinogenesis, Im Neuenheimer Feld 280, Heidelberg, 69120, Germany
| | - Claudia Tessmer
- German Cancer Research Center (DKFZ), Core Facility Antibodies, Im Neuenheimer Feld 280, Heidelberg, 69120, Germany
| | - Ilse Hofmann
- German Cancer Research Center (DKFZ), Core Facility Antibodies, Im Neuenheimer Feld 280, Heidelberg, 69120, Germany
| | - Bruno Galy
- German Cancer Research Center (DKFZ), Division of Virus-Associated Carcinogenesis, Im Neuenheimer Feld 280, Heidelberg, 69120, Germany
| | - David Gatfield
- Center for Integrative Genomics, University of Lausanne, Lausanne, 1015, Switzerland.
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Azur RAG, Olarte KCV, Ybañez WS, Ocampo AMM, Bagamasbad PD. CYB561 supports the neuroendocrine phenotype in castration-resistant prostate cancer. PLoS One 2024; 19:e0300413. [PMID: 38739593 PMCID: PMC11090301 DOI: 10.1371/journal.pone.0300413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/08/2024] [Indexed: 05/16/2024] Open
Abstract
Castration-resistant prostate cancer (CRPC) is associated with resistance to androgen deprivation therapy, and an increase in the population of neuroendocrine (NE) differentiated cells. It is hypothesized that NE differentiated cells secrete neuropeptides that support androgen-independent tumor growth and induce aggressiveness of adjacent proliferating tumor cells through a paracrine mechanism. The cytochrome b561 (CYB561) gene, which codes for a secretory vesicle transmembrane protein, is constitutively expressed in NE cells and highly expressed in CRPC. CYB561 is involved in the α-amidation-dependent activation of neuropeptides, and contributes to regulating iron metabolism which is often dysregulated in cancer. These findings led us to hypothesize that CYB561 may be a key player in the NE differentiation process that drives the progression and maintenance of the highly aggressive NE phenotype in CRPC. In our study, we found that CYB561 expression is upregulated in metastatic and NE prostate cancer (NEPC) tumors and cell lines compared to normal prostate epithelia, and that its expression is independent of androgen regulation. Knockdown of CYB561 in androgen-deprived LNCaP cells dampened NE differentiation potential and transdifferentiation-induced increase in iron levels. In NEPC PC-3 cells, depletion of CYB561 reduced the secretion of growth-promoting factors, lowered intracellular ferrous iron concentration, and mitigated the highly aggressive nature of these cells in complementary assays for cancer hallmarks. These findings demonstrate the role of CYB561 in facilitating transdifferentiation and maintenance of NE phenotype in CRPC through its involvement in neuropeptide biosynthesis and iron metabolism pathways.
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Affiliation(s)
- Romie Angelo G. Azur
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Kevin Christian V. Olarte
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Weand S. Ybañez
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Alessandria Maeve M. Ocampo
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
| | - Pia D. Bagamasbad
- National Institute of Molecular Biology and Biotechnology, University of the Philippines Diliman, Quezon City, Philippines
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4
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Vallières C, Benoit O, Guittet O, Huang ME, Lepoivre M, Golinelli-Cohen MP, Vernis L. Iron-sulfur protein odyssey: exploring their cluster functional versatility and challenging identification. Metallomics 2024; 16:mfae025. [PMID: 38744662 PMCID: PMC11138216 DOI: 10.1093/mtomcs/mfae025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2024] [Accepted: 04/22/2024] [Indexed: 05/16/2024]
Abstract
Iron-sulfur (Fe-S) clusters are an essential and ubiquitous class of protein-bound prosthetic centers that are involved in a broad range of biological processes (e.g. respiration, photosynthesis, DNA replication and repair and gene regulation) performing a wide range of functions including electron transfer, enzyme catalysis, and sensing. In a general manner, Fe-S clusters can gain or lose electrons through redox reactions, and are highly sensitive to oxidation, notably by small molecules such as oxygen and nitric oxide. The [2Fe-2S] and [4Fe-4S] clusters, the most common Fe-S cofactors, are typically coordinated by four amino acid side chains from the protein, usually cysteine thiolates, but other residues (e.g. histidine, aspartic acid) can also be found. While diversity in cluster coordination ensures the functional variety of the Fe-S clusters, the lack of conserved motifs makes new Fe-S protein identification challenging especially when the Fe-S cluster is also shared between two proteins as observed in several dimeric transcriptional regulators and in the mitoribosome. Thanks to the recent development of in cellulo, in vitro, and in silico approaches, new Fe-S proteins are still regularly identified, highlighting the functional diversity of this class of proteins. In this review, we will present three main functions of the Fe-S clusters and explain the difficulties encountered to identify Fe-S proteins and methods that have been employed to overcome these issues.
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Affiliation(s)
- Cindy Vallières
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Orane Benoit
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Olivier Guittet
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Meng-Er Huang
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Michel Lepoivre
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Marie-Pierre Golinelli-Cohen
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
| | - Laurence Vernis
- Université Paris-Saclay, Institut de Chimie des Substances Naturelles, CNRS UPR 2301, Gif-sur-Yvette cedex 91198, France
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5
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Kao YR, Chen J, Kumari R, Ng A, Zintiridou A, Tatiparthy M, Ma Y, Aivalioti MM, Moulik D, Sundaravel S, Sun D, Reisz JA, Grimm J, Martinez-Lopez N, Stransky S, Sidoli S, Steidl U, Singh R, D'Alessandro A, Will B. An iron rheostat controls hematopoietic stem cell fate. Cell Stem Cell 2024; 31:378-397.e12. [PMID: 38402617 PMCID: PMC10939794 DOI: 10.1016/j.stem.2024.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 12/20/2023] [Accepted: 01/30/2024] [Indexed: 02/27/2024]
Abstract
Mechanisms governing the maintenance of blood-producing hematopoietic stem and multipotent progenitor cells (HSPCs) are incompletely understood, particularly those regulating fate, ensuring long-term maintenance, and preventing aging-associated stem cell dysfunction. We uncovered a role for transitory free cytoplasmic iron as a rheostat for adult stem cell fate control. We found that HSPCs harbor comparatively small amounts of free iron and show the activation of a conserved molecular response to limited iron-particularly during mitosis. To study the functional and molecular consequences of iron restriction, we developed models allowing for transient iron bioavailability limitation and combined single-molecule RNA quantification, metabolomics, and single-cell transcriptomic analyses with functional studies. Our data reveal that the activation of the limited iron response triggers coordinated metabolic and epigenetic events, establishing stemness-conferring gene regulation. Notably, we find that aging-associated cytoplasmic iron loading reversibly attenuates iron-dependent cell fate control, explicating intervention strategies for dysfunctional aged stem cells.
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Affiliation(s)
- Yun-Ruei Kao
- Department of Oncology, Albert Einstein College of Medicine, New York, NY, USA.
| | - Jiahao Chen
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Rajni Kumari
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Anita Ng
- Karches Center for Oncology Research, the Feinstein Institutes for Medical Research, Northwell Health, Manhasset, NY, USA
| | - Aliona Zintiridou
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Madhuri Tatiparthy
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Yuhong Ma
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Maria M Aivalioti
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Deeposree Moulik
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Sriram Sundaravel
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Daqian Sun
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Julie A Reisz
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Juliane Grimm
- Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA
| | - Nuria Martinez-Lopez
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Vatche and Tamar Manoukian Division of Digestive Diseases, University of California, Los Angeles, Los Angeles, CA, USA; Comprehensive Liver Research Center at University of California Los Angeles, CA, USA
| | - Stephanie Stransky
- Department of Biochemistry, Albert Einstein College of Medicine, New York, NY, USA
| | - Simone Sidoli
- Department of Biochemistry, Albert Einstein College of Medicine, New York, NY, USA
| | - Ulrich Steidl
- Department of Oncology, Albert Einstein College of Medicine, New York, NY, USA; Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA; Ruth L. and David S. Gottesman Institute for Stem Cell Research and Regenerative Medicine, Albert Einstein College of Medicine, New York, NY, USA; Blood Cancer Institute, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA; Cancer Dormancy and Tumor Microenvironment Institute, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Rajat Singh
- Department of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Vatche and Tamar Manoukian Division of Digestive Diseases, University of California, Los Angeles, Los Angeles, CA, USA; Comprehensive Liver Research Center at University of California Los Angeles, CA, USA
| | - Angelo D'Alessandro
- Department of Biochemistry and Molecular Genetics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Britta Will
- Department of Oncology, Albert Einstein College of Medicine, New York, NY, USA; Department of Cell Biology, Albert Einstein College of Medicine, New York, NY, USA; Ruth L. and David S. Gottesman Institute for Stem Cell Research and Regenerative Medicine, Albert Einstein College of Medicine, New York, NY, USA; Blood Cancer Institute, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA; Cancer Dormancy and Tumor Microenvironment Institute, Montefiore Einstein Comprehensive Cancer Center, Albert Einstein College of Medicine, Bronx, NY, USA; Institute for Aging Studies, Albert Einstein College of Medicine, New York, NY, USA.
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Shen J, Zhang H, Jiang H, Lin H, He J, Fan S, Yu D, Yang L, Tang H, Lin E, Li L, Chen L. The effect of micronutrient on thyroid cancer risk: a Mendelian randomization study. Front Nutr 2024; 11:1331172. [PMID: 38496794 PMCID: PMC10940541 DOI: 10.3389/fnut.2024.1331172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/22/2024] [Indexed: 03/19/2024] Open
Abstract
Background The effect of micronutrients on thyroid cancer has been studied in observational studies, however, the cause of relationships has not yet been determined. Thyroid cancer was the subject of a Mendelian randomization (MR) analysis of micronutrients. Aimed to determine whether micronutrient intake has a causal impact on the chance of developing thyroid cancer. Methods We used a Mendelian randomization (MR) analysis with two samples. Our circulation levels of Cu, Ir, Zn, Ca, VD, and VC were reflected by genetic variations reported from GWAS in individuals of European ancestry. For the GWAS outcome of thyroid cancer. Sensitivity studies that included MR-Egger, weighted median/mode tests, and a more open selection of variations at a genome-wide sub-significant threshold were added to our inverse-variance weighted (IVW) MR study. Results Using the IVW approach, we did not find evidence that any of the micronutrients to thyroid cancer (Cu: odds ratio [OR = 0.88, p = 0.41]; Zn: odds ratio [OR = 0.87, p = 0.40]; Ir: odds ratio [OR = 1.18, p = 0.39]; Ca: odds ratio [OR = 1.12, p = 0.43]; VC: odds ratio [OR = 0.95, p = 0.22]; VD: odds ratio [OR = 0.89, p = 0.04]). The heterogeneity (p > 0.05) and pleiotropy (p > 0.05) testing provided confirmatory evidence for the validity of our MR estimates. Conclusion This study does not provide evidence that supplementation with micronutrients including Cu, Ir, Zn, Ca, VD, and VC can prevent thyroid cancer.
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Affiliation(s)
- Jiali Shen
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Hong Zhang
- School of Clinical Medicine, Fujian Medical University, Fuzhou, China
| | - Hongzhan Jiang
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Huihui Lin
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Jiaxi He
- School of Medicine, Xiamen University, Xiamen, China
| | - Siyue Fan
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Doudou Yu
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Liping Yang
- School of Nursing, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Hui Tang
- Department of Nuclear Medicine, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen, China
| | - Ende Lin
- Department of General Surgery, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen, China
| | - Lianghui Li
- Department of General Surgery, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen, China
| | - Lijuan Chen
- Department of General Surgery, Zhongshan Hospital of Xiamen University, School of Medicine, Xiamen, China
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Ma Z, Lu H, Feng X, Du T, Li J, Zhang Q, Gu X, Shao Y, Jing X, Su C. Nrf2 protects against cartilage endplate degeneration through inhibiting NCOA4‑mediated ferritinophagy. Int J Mol Med 2024; 53:15. [PMID: 38063237 PMCID: PMC10760794 DOI: 10.3892/ijmm.2023.5339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 11/12/2023] [Indexed: 12/18/2023] Open
Abstract
Iron overload and ferroptosis are associated with intervertebral disc degeneration (IDD); however, the mechanism underlying the regulation of iron homeostasis remains to be elucidated. Nuclear factor erythroid 2‑related factor 2 (Nrf2) has been reported to regulate cellular iron homeostasis; however, its impact on IDD pathology and the underlying mechanism of action requires further investigation. In the present study, immunohistochemistry analysis of Nrf2 expression in the cartilage endplate (CEP) was conducted and it was demonstrated that Nrf2 expression was increased in the CEP at the early stages of the development of IDD, whereas it was decreased at the late stages of the development of IDD. The results of western blot analysis indicated that the inadequate activation of Nrf2 may aggravate mitochondrial dysfunction and oxidative stress, thus promoting CEP chondrocyte degeneration and calcification. It was also revealed that Nrf2 was involved in TNF‑α‑induced CEP chondrocyte iron metabolism dysfunction and ferroptosis. Inhibition of Nrf2 expression using Nrf2 small interfering RNA could enhance the process of nuclear receptor coactivator 4 (NCOA4)‑mediated ferritinophagy and increase ferrous ion content, which may promote CEP chondrocyte ferroptotic cell death and extracellular matrix degradation. Furthermore, a decrease in cellular iron concentration may inhibit CEP chondrocyte ferroptosis, and CEP degeneration and calcification. The present study highlights the role of the Nrf2/NCOA4 axis in chondrocyte ferroptosis and IDD pathogenesis, thus suggesting that activation of Nrf2 may be a promising strategy for IDD treatment.
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Affiliation(s)
- Zhenkai Ma
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Hui Lu
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Xuemin Feng
- Department of Endocrinology, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Ting Du
- Department of Medicine, Yidu Cloud (Beijing) Technology Co., Ltd., Beijing 100191, P.R. China
| | - Jianhua Li
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Qiang Zhang
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Xindong Gu
- Department of Neurosurgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Yuandong Shao
- Department of Spine Surgery, Binzhou People's Hospital, Binzhou, Shandong 256600, P.R. China
| | - Xingzhi Jing
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, P.R. China
| | - Cheng Su
- Department of Spine Surgery, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, Shandong 250000, P.R. China
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Bolandghamat S, Behnam‐Rassouli M. Iron role paradox in nerve degeneration and regeneration. Physiol Rep 2024; 12:e15908. [PMID: 38176709 PMCID: PMC10766496 DOI: 10.14814/phy2.15908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 12/02/2023] [Accepted: 12/14/2023] [Indexed: 01/06/2024] Open
Abstract
Iron accumulates in the neural tissue during peripheral nerve degeneration. Some studies have already been suggested that iron facilitates Wallerian degeneration (WD) events such as Schwann cell de-differentiation. On the other hand, intracellular iron levels remain elevated during nerve regeneration and gradually decrease. Iron enhances Schwann cell differentiation and axonal outgrowth. Therefore, there seems to be a paradox in the role of iron during nerve degeneration and regeneration. We explain this contradiction by suggesting that the increase in intracellular iron concentration during peripheral nerve degeneration is likely to prepare neural cells for the initiation of regeneration. Changes in iron levels are the result of changes in the expression of iron homeostasis proteins. In this review, we will first discuss the changes in the iron/iron homeostasis protein levels during peripheral nerve degeneration and regeneration and then explain how iron is related to nerve regeneration. This data may help better understand the mechanisms of peripheral nerve repair and find a solution to prevent or slow the progression of peripheral neuropathies.
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Affiliation(s)
- Samira Bolandghamat
- Department of Biology, Faculty of ScienceFerdowsi University of MashhadMashhadIran
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Singh G, Singh A, Mishra S, Singh D, Kumar A. Intracellular Iron Accumulation Induces Inflammatory and Oxidative Status of the Host After Japanese Encephalitis Viral Infection. Mol Neurobiol 2024; 61:175-187. [PMID: 37594653 DOI: 10.1007/s12035-023-03538-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/18/2023] [Indexed: 08/19/2023]
Abstract
The factors mitigating the microglia/macrophage activation and inflammatory damage in Japanese encephalitis (JE) virus infected CNS are still being ascertained. We aim to characterize the changes in iron transporter and iron storage proteins along with inflammatory and oxidative stress-mediated signaling during the JE viral infection. Cortical tissue samples from mice with JE viral infection were processed for biochemical, histological, and molecular analysis. Iron storage protein, i.e., ferritin, was found significantly increased post-JE viral infection, and iron accumulation was noted in cortical tissue. Key proinflammatory associated markers, such as TNF-α, IL-6, and its regulator TLR4, were found to be increased, while SOCS1 (anti-inflammatory regulator) transcription decreased with increased levels of oxidative stress markers NOX2-mediated NF-ΚB/p65 and protein carbonyl. Furthermore, it is noted that hepcidin level increased and ferroportin level decreased, and iron transporter gene expression got imbalanced after JE viral infection. This observation was further confirmed by deferoxamine (DFO) treatment to JE viral infection mice model, where the decline in hepcidin transcription level and iron load in cortical tissue of JE viral infected animals was noted. However, no change was found in the ferroportin level compared to JE viral infected animals. Together, these findings suggest that iron overload and hepcidin-ferroportin regulation are involved in JE viral infection disease pathologies and associated with the inflammatory and oxidative status of the host during infection.
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Affiliation(s)
- Gajendra Singh
- Department of Molecular Medicine and Biotechnology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, Uttar Pradesh, India
| | - Anjali Singh
- Department of Molecular Medicine and Biotechnology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, Uttar Pradesh, India
| | - Sanjay Mishra
- Department of Pathology, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - Devendra Singh
- Department of Pathology, King George's Medical University, Lucknow, 226003, Uttar Pradesh, India
| | - Alok Kumar
- Department of Molecular Medicine and Biotechnology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow, 226014, Uttar Pradesh, India.
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10
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Li D, Ju F, Wang H, Fan C, Jacob JC, Gul S, Zaliani A, Wartmann T, Polidori MC, Bruns CJ, Zhao Y. Combination of the biomarkers for aging and cancer? - Challenges and current status. Transl Oncol 2023; 38:101783. [PMID: 37716258 PMCID: PMC10514562 DOI: 10.1016/j.tranon.2023.101783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 09/04/2023] [Accepted: 09/07/2023] [Indexed: 09/18/2023] Open
Abstract
The proportion of patients diagnosed with cancer has been shown to rise with the increasing aging global population. Advanced age is a major risk factor for morbidity and mortality in older adults. As individuals experience varying health statuses, particularly with age, it poses a challenge for medical professionals in the cancer field to obtain standardized treatment outcomes. Hence, relying solely on chronological age and disease-related parameters is inadequate for clinical decision-making for elderly patients. With functional, multimorbidity-related, and psychosocial changes that occur with aging, oncologic diseases may develop and be treated differently from younger patients, leading to unique challenges in treatment efficacy and tolerance. To overcome this challenge, personalized therapy using biomarkers has emerged as a promising solution. Various categories of biomarkers, including inflammatory, hematological, metabolic, endocrine, and DNA modification-related indicators, may display features related to both cancer and aging, aiding in the development of innovative therapeutic approaches for patients with cancer in old age. Furthermore, physical functional measurements as non-molecular phenotypic biomarkers are being investigated for their potential complementary role in structured multidomain strategies to combat age-related diseases such as cancer. This review provides insight into the current developments, recent discoveries, and significant challenges in cancer and aging biomarkers, with a specific focus on their application in advanced age.
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Affiliation(s)
- Dai Li
- Department of General, Visceral, Tumor and Transplantation Surgery, University Hospital of Cologne, Kerpener Straße 62, 50937 Cologne, Germany; Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Feng Ju
- Department of General, Visceral, Tumor and Transplantation Surgery, University Hospital of Cologne, Kerpener Straße 62, 50937 Cologne, Germany
| | - Han Wang
- Department of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Chunfu Fan
- Medical faculty, University of Cologne, Germany
| | | | - Sheraz Gul
- Fraunhofer Institute for Translational Medicine and Pharmacology, Schnackenburgallee 114, d-22525 Hamburg, Germany; Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hamburg Site, Schnackenburgallee 114, d-22525 Hamburg, Germany
| | - Andrea Zaliani
- Fraunhofer Institute for Translational Medicine and Pharmacology, Schnackenburgallee 114, d-22525 Hamburg, Germany; Fraunhofer Cluster of Excellence Immune-Mediated Diseases CIMD, Hamburg Site, Schnackenburgallee 114, d-22525 Hamburg, Germany
| | - Thomas Wartmann
- Department of General, Visceral und Vascular Surgery, Otto von Guericke University, Magdeburg, Leipziger Str. 44, Magdeburg, 39120, Germany
| | - Maria Cristina Polidori
- Ageing Clinical Research, Department II of Internal Medicine and Center for Molecular Medicine Cologne, University of Cologne, Faculty of Medicine and University Hospital Cologne, Cologne, Germany; Cologne Excellence Cluster on Cellular Stress-Responses in Aging-Associated Diseases (CECAD), University of Cologne, Cologne Germany
| | - Christiane J Bruns
- Department of General, Visceral, Tumor and Transplantation Surgery, University Hospital of Cologne, Kerpener Straße 62, 50937 Cologne, Germany; Center for Integrated Oncology (CIO) Aachen, Bonn, Cologne and Düsseldorf, Cologne, Germany
| | - Yue Zhao
- Department of General, Visceral, Tumor and Transplantation Surgery, University Hospital of Cologne, Kerpener Straße 62, 50937 Cologne, Germany.
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11
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Corradi F, Masini G, Bucciarelli T, De Caterina R. Iron deficiency in myocardial ischaemia: molecular mechanisms and therapeutic perspectives. Cardiovasc Res 2023; 119:2405-2420. [PMID: 37722377 DOI: 10.1093/cvr/cvad146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 05/14/2023] [Accepted: 07/10/2023] [Indexed: 09/20/2023] Open
Abstract
Systemic iron deficiency (SID), even in the absence of anaemia, worsens the prognosis and increases mortality in heart failure (HF). Recent clinical-epidemiological studies, however, have shown that a myocardial iron deficiency (MID) is frequently present in cases of severe HF, even in the absence of SID and without anaemia. In addition, experimental studies have shown a poor correlation between the state of systemic and myocardial iron. MID in animal models leads to severe mitochondrial dysfunction, alterations of mitophagy, and mitochondrial biogenesis, with profound alterations in cardiac mechanics and the occurrence of a fatal cardiomyopathy, all effects prevented by intravenous administration of iron. This shifts the focus to the myocardial state of iron, in the absence of anaemia, as an important factor in prognostic worsening and mortality in HF. There is now epidemiological evidence that SID worsens prognosis and mortality also in patients with acute and chronic coronary heart disease and experimental evidence that MID aggravates acute myocardial ischaemia as well as post-ischaemic remodelling. Intravenous administration of ferric carboxymaltose (FCM) or ferric dextrane improves post-ischaemic adverse remodelling. We here review such evidence, propose that MID worsens ischaemia/reperfusion injury, and discuss possible molecular mechanisms, such as chronic hyperactivation of HIF1-α, exacerbation of cytosolic and mitochondrial calcium overload, amplified increase of mitochondrial [NADH]/[NAD+] ratio, and depletion of energy status and NAD+ content with inhibition of sirtuin 1-3 activity. Such evidence now portrays iron metabolism as a core factor not only in HF but also in myocardial ischaemia.
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Affiliation(s)
- Francesco Corradi
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Gabriele Masini
- Chair and Postgraduate School of Cardiology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
| | - Tonino Bucciarelli
- Department of Medicine and Aging Sciences, "G. D'Annunzio" University of Chieti-Pescara, Via dei Vestini, 66100, Chieti, Italy
| | - Raffaele De Caterina
- Chair and Postgraduate School of Cardiology, University of Pisa, Via Savi 10, 56126, Pisa, Italy
- Fondazione VillaSerena per la Ricerca, Viale L. Petruzzi 42, 65013, Città Sant'Angelo, Pescara, Italy
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12
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Abbas W, Elmugabil A, Hamdan HZ, Rayis DA, Adam I. Iron deficiency and thyroid dysfunction among sudanese women in first trimester of pregnancy: a cross-sectional study. BMC Endocr Disord 2023; 23:223. [PMID: 37833658 PMCID: PMC10571453 DOI: 10.1186/s12902-023-01487-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 10/11/2023] [Indexed: 10/15/2023] Open
Abstract
BACKGROUND Pregnant women are more susceptible to iron deficiency (ID), and it can lead to several maternal and perinatal adverse effects. There are some published data on the effect of ID on thyroid function, but none of the studies were conducted in sub-Saharan African countries including Sudan. This study was conducted to investigate association between ID (ferritin < 15 µg/L) and thyroid functions [thyroid-stimulating hormone (TSH), free triiodothyronine (FT3), and free thyroxine (FT4)] among Sudanese women in the first trimester of pregnancy. METHOD A cross-sectional study was conducted in Saad Abuelela Maternity Hospital, Sudan. Obstetric/sociodemographic characteristics were gathered through questionnaires. Hemoglobin, serum ferritin, TSH, FT3, and FT4 were measured in all pregnant women. Continuous variables were compared with either independent sample t-test if they were normally distributed, or with Mann-Whitney U- test if they were not-normally distributed. Spearman correlations were performed between the continuous variables. RESULTS In total, 127 pregnant women with mean [standard deviation (SD)] age of 27.0 (5.5) years and gestational age of 10.5 (3.0) weeks, respectively, were enrolled in this study. Forty-seven (37.0%) of these 127 women had ID. While the median [interquartile range (IQR)] of the parity, TSH, and FT3 were not different between women with ID and women without ID, the median (IQR) of FT4 was significantly lower in women with ID compared with women without ID [1.020 (0.910‒1.120) vs. 1.095 (0.990‒1.217) pmol, P = 0.014]. Serum ferritin was inversely correlated with FT3, (r = -0.225, P = 0.011). There was no significant correlation between serum ferritin, TSH, and FT4. CONCLUSIONS Iron deficiency was common during the first trimester of pregnancy and was associated with thyroid dysfunctions. Therefore, ID should be evaluated to avoid thyroid dysfunction.
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Affiliation(s)
- Wisal Abbas
- Faculty of Medicine, Kordofan University, Elobeid, Sudan
| | | | - Hamdan Z Hamdan
- Department of Basic Medical Sciences, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, 51911, Saudi Arabia
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, Al-Neelain University, P.O. BOX 12702, Khartoum, Sudan
| | - Duria A Rayis
- Faculty of Medicine, University of Khartoum, Khartoum, Sudan.
| | - Ishag Adam
- Department of Obstetrics and Gynecology, Unaizah College of Medicine and Medical Sciences, Qassim University, Unaizah, Saudi Arabia
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13
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Wang Y, Liu B, Li F, Zhang Y, Gao X, Wang Y, Zhou H. The connection between tricarboxylic acid cycle enzyme mutations and pseudohypoxic signaling in pheochromocytoma and paraganglioma. Front Endocrinol (Lausanne) 2023; 14:1274239. [PMID: 37867526 PMCID: PMC10585109 DOI: 10.3389/fendo.2023.1274239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 09/25/2023] [Indexed: 10/24/2023] Open
Abstract
Pheochromocytomas and paragangliomas (PPGLs) are rare neuroendocrine tumors originating from chromaffin cells, holding significant clinical importance due to their capacity for excessive catecholamine secretion and associated cardiovascular complications. Roughly 80% of cases are associated with genetic mutations. Based on the functionality of these mutated genes, PPGLs can be categorized into distinct molecular clusters: the pseudohypoxia signaling cluster (Cluster-1), the kinase signaling cluster (Cluster-2), and the WNT signaling cluster (Cluster-3). A pivotal factor in the pathogenesis of PPGLs is hypoxia-inducible factor-2α (HIF2α), which becomes upregulated even under normoxic conditions, activating downstream transcriptional processes associated with pseudohypoxia. This adaptation provides tumor cells with a growth advantage and enhances their ability to thrive in adverse microenvironments. Moreover, pseudohypoxia disrupts immune cell communication, leading to the development of an immunosuppressive tumor microenvironment. Within Cluster-1a, metabolic perturbations are particularly pronounced. Mutations in enzymes associated with the tricarboxylic acid (TCA) cycle, such as succinate dehydrogenase (SDHx), fumarate hydratase (FH), isocitrate dehydrogenase (IDH), and malate dehydrogenase type 2 (MDH2), result in the accumulation of critical oncogenic metabolic intermediates. Notable among these intermediates are succinate, fumarate, and 2-hydroxyglutarate (2-HG), which promote activation of the HIFs signaling pathway through various mechanisms, thus inducing pseudohypoxia and facilitating tumorigenesis. SDHx mutations are prevalent in PPGLs, disrupting mitochondrial function and causing succinate accumulation, which competitively inhibits α-ketoglutarate-dependent dioxygenases. Consequently, this leads to global hypermethylation, epigenetic changes, and activation of HIFs. In FH-deficient cells, fumarate accumulation leads to protein succination, impacting cell function. FH mutations also trigger metabolic reprogramming towards glycolysis and lactate synthesis. IDH1/2 mutations generate D-2HG, inhibiting α-ketoglutarate-dependent dioxygenases and stabilizing HIFs. Similarly, MDH2 mutations are associated with HIF stability and pseudohypoxic response. Understanding the intricate relationship between metabolic enzyme mutations in the TCA cycle and pseudohypoxic signaling is crucial for unraveling the pathogenesis of PPGLs and developing targeted therapies. This knowledge enhances our comprehension of the pivotal role of cellular metabolism in PPGLs and holds implications for potential therapeutic advancements.
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Affiliation(s)
- Yuxiong Wang
- Department of Urology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Bin Liu
- Department of Urology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Faping Li
- Department of Urology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yanghe Zhang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin, China
| | - Xin Gao
- Department of Urology, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yishu Wang
- Key Laboratory of Pathobiology, Ministry of Education, Jilin University, Changchun, Jilin, China
| | - Honglan Zhou
- Department of Urology, The First Hospital of Jilin University, Changchun, Jilin, China
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14
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Surbek M, Sukseree S, Eckhart L. Iron Metabolism of the Skin: Recycling versus Release. Metabolites 2023; 13:1005. [PMID: 37755285 PMCID: PMC10534741 DOI: 10.3390/metabo13091005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 09/06/2023] [Accepted: 09/08/2023] [Indexed: 09/28/2023] Open
Abstract
The skin protects the body against exogenous stressors. Its function is partially achieved by the permanent regeneration of the epidermis, which requires high metabolic activity and the shedding of superficial cells, leading to the loss of metabolites. Iron is involved in a plethora of important epidermal processes, including cellular respiration and detoxification of xenobiotics. Likewise, microorganisms on the surface of the skin depend on iron, which is supplied by the turnover of epithelial cells. Here, we review the metabolism of iron in the skin with a particular focus on the fate of iron in epidermal keratinocytes. The iron metabolism of the epidermis is controlled by genes that are differentially expressed in the inner and outer layers of the epidermis, establishing a system that supports the recycling of iron and counteracts the release of iron from the skin surface. Heme oxygenase-1 (HMOX1), ferroportin (SLC40A1) and hephaestin-like 1 (HEPHL1) are constitutively expressed in terminally differentiated keratinocytes and allow the recycling of iron from heme prior to the cornification of keratinocytes. We discuss the evidence for changes in the epidermal iron metabolism in diseases and explore promising topics of future studies of iron-dependent processes in the skin.
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Affiliation(s)
| | | | - Leopold Eckhart
- Department of Dermatology, Medical University of Vienna, 1090 Vienna, Austria; (M.S.); (S.S.)
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15
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Deschemin JC, Ransy C, Bouillaud F, Chung S, Galy B, Peyssonnaux C, Vaulont S. Hepcidin deficiency in mice impairs white adipose tissue browning possibly due to a defect in de novo adipogenesis. Sci Rep 2023; 13:12794. [PMID: 37550331 PMCID: PMC10406828 DOI: 10.1038/s41598-023-39305-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 07/23/2023] [Indexed: 08/09/2023] Open
Abstract
The role of iron in the two major sites of adaptive thermogenesis, namely the beige inguinal (iWAT) and brown adipose tissues (BAT) has not been fully understood yet. Body iron levels and distribution is controlled by the iron regulatory peptide hepcidin. Here, we explored iron homeostasis and thermogenic activity in brown and beige fat in wild-type and iron loaded Hepcidin KO mice. Hepcidin-deficient mice displayed iron overload in both iWAT and BAT, and preferential accumulation of ferritin in stromal cells compared to mature adipocytes. In contrast to BAT, the iWAT of Hepcidin KO animals featured with defective thermogenesis evidenced by an altered beige signature, including reduced UCP1 levels and decreased mitochondrial respiration. This thermogenic modification appeared cell autonomous and persisted after a 48 h-cold challenge, a potent trigger of thermogenesis, suggesting compromised de novo adipogenesis. Given that WAT browning occurs in both mice and humans, our results provide physiological results to interrogate the thermogenic capacity of patients with iron overload disorders.
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Affiliation(s)
- Jean-Christophe Deschemin
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Céline Ransy
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
| | - Frédéric Bouillaud
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
| | - Soonkyu Chung
- Department of Nutrition, University of Massachusetts-Amherst, Amherst, MA, 01003, USA
| | - Bruno Galy
- German Cancer Research Center, "Division of Virus-Associated Carcinogenesis", Im Neuenheimer Feld 280, 69120, Heidelberg, Germany
| | - Carole Peyssonnaux
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France
- Laboratory of Excellence GR-Ex, Paris, France
| | - Sophie Vaulont
- Institut Cochin, INSERM, CNRS, Université Paris Cité, 75014, Paris, France.
- Laboratory of Excellence GR-Ex, Paris, France.
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16
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Chang S, Wang P, Han Y, Ma Q, Liu Z, Zhong S, Lu Y, Chen R, Sun L, Wu Q, Gao G, Wang X, Chang YZ. Ferrodifferentiation regulates neurodevelopment via ROS generation. SCIENCE CHINA. LIFE SCIENCES 2023; 66:1841-1857. [PMID: 36929272 DOI: 10.1007/s11427-022-2297-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 02/16/2023] [Indexed: 03/18/2023]
Abstract
Iron is important for life, and iron deficiency impairs development, but whether the iron level regulates neural differentiation remains elusive. In this study, with iron-regulatory proteins (IRPs) knockout embryonic stem cells (ESCs) that showed severe iron deficiency, we found that the Pax6- and Sox2-positive neuronal precursor cells and Tuj1 fibers in IRP1-/-IRP2-/- ESCs were significantly decreased after inducing neural differentiation. Consistently, in vivo study showed that the knockdown of IRP1 in IRP2-/- fetal mice remarkably affected the differentiation of neuronal precursors and the migration of neurons. These findings suggest that low intracellular iron status significantly inhibits neurodifferentiation. When supplementing IRP1-/-IRP2-/- ESCs with iron, these ESCs could differentiate normally. Further investigations revealed that the underlying mechanism was associated with an increase in reactive oxygen species (ROS) production caused by the substantially low level of iron and the down-regulation of iron-sulfur cluster protein ISCU, which, in turn, affected the proliferation and differentiation of stem cells. Thus, the appropriate amount of iron is crucial for maintaining normal neural differentiation that is termed ferrodifferentiation.
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Affiliation(s)
- Shiyang Chang
- Laboratory of Molecular Iron Metabolism, Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry, and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
- College of Basic Medicine, Hebei Medical University, Shijiazhuang, 050017, China
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China
| | - Peina Wang
- Laboratory of Molecular Iron Metabolism, Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry, and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
- College of Basic Medicine, Hebei Medical University, Shijiazhuang, 050017, China
| | - Yingying Han
- Laboratory of Molecular Iron Metabolism, Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry, and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China
| | - Qiang Ma
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China
| | - Zeyuan Liu
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China
| | - Suijuan Zhong
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875, China
| | - Yufeng Lu
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China
| | - Ruiguo Chen
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China
| | - Le Sun
- Beijing Institute of Brain Disorders, Laboratory of Brain Disorders, Ministry of Science and Technology, Collaborative Innovation Center for Brain Disorders, Capital Medical University, Beijing, 100069, China
| | - Qian Wu
- State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University, Beijing, 100875, China
| | - Guofen Gao
- Laboratory of Molecular Iron Metabolism, Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry, and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
| | - Xiaoqun Wang
- State Key Laboratory of Brain and Cognitive Science, CAS Center for Excellence in Brain Science and Intelligence Technology (Shanghai), Institute of Biophysics, Chinese Academy of Sciences (CAS), BNU IDG/McGovern Institute for Brain Research, Beijing, 100101, China.
| | - Yan-Zhong Chang
- Laboratory of Molecular Iron Metabolism, Ministry of Education Key Laboratory of Molecular and Cellular Biology, Hebei Key Laboratory of Animal Physiology, Biochemistry, and Molecular Biology, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, China.
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17
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Long H, Zhu W, Wei L, Zhao J. Iron homeostasis imbalance and ferroptosis in brain diseases. MedComm (Beijing) 2023; 4:e298. [PMID: 37377861 PMCID: PMC10292684 DOI: 10.1002/mco2.298] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Revised: 05/08/2023] [Accepted: 05/10/2023] [Indexed: 06/29/2023] Open
Abstract
Brain iron homeostasis is maintained through the normal function of blood-brain barrier and iron regulation at the systemic and cellular levels, which is fundamental to normal brain function. Excess iron can catalyze the generation of free radicals through Fenton reactions due to its dual redox state, thus causing oxidative stress. Numerous evidence has indicated brain diseases, especially stroke and neurodegenerative diseases, are closely related to the mechanism of iron homeostasis imbalance in the brain. For one thing, brain diseases promote brain iron accumulation. For another, iron accumulation amplifies damage to the nervous system and exacerbates patients' outcomes. In addition, iron accumulation triggers ferroptosis, a newly discovered iron-dependent type of programmed cell death, which is closely related to neurodegeneration and has received wide attention in recent years. In this context, we outline the mechanism of a normal brain iron metabolism and focus on the current mechanism of the iron homeostasis imbalance in stroke, Alzheimer's disease, and Parkinson's disease. Meanwhile, we also discuss the mechanism of ferroptosis and simultaneously enumerate the newly discovered drugs for iron chelators and ferroptosis inhibitors.
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Affiliation(s)
- Haining Long
- Department of Diagnostic and Interventional RadiologyShanghai Sixth People’s Hospital Afliated to Shanghai Jiao Tong University School
of MedicineShanghaiChina
| | - Wangshu Zhu
- Department of Diagnostic and Interventional RadiologyShanghai Sixth People’s Hospital Afliated to Shanghai Jiao Tong University School
of MedicineShanghaiChina
| | - Liming Wei
- Department of Diagnostic and Interventional RadiologyShanghai Sixth People’s Hospital Afliated to Shanghai Jiao Tong University School
of MedicineShanghaiChina
| | - Jungong Zhao
- Department of Diagnostic and Interventional RadiologyShanghai Sixth People’s Hospital Afliated to Shanghai Jiao Tong University School
of MedicineShanghaiChina
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18
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Zhang X, Zhou J, Holbein BE, Lehmann C. Iron Chelation as a Potential Therapeutic Approach in Acute Lung Injury. Life (Basel) 2023; 13:1659. [PMID: 37629516 PMCID: PMC10455621 DOI: 10.3390/life13081659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/28/2023] [Accepted: 07/29/2023] [Indexed: 08/27/2023] Open
Abstract
Acute lung injury (ALI) has been challenging health care systems since before the COVID-19 pandemic due to its morbidity, mortality, and length of hospital stay. In view of the complex pathogenesis of ALI, effective strategies for its prevention and treatment are still lacking. A growing body of evidence suggests that iron dysregulation is a common characteristic in many subtypes of ALI. On the one hand, iron is needed to produce reactive oxygen species (ROS) as part of the immune response to an infection; on the other hand, iron can accelerate the occurrence of ferroptosis and extend host cell damage. Iron chelation represents a novel therapeutic strategy for alleviating lung injury and improving the survival of patients with ALI. This article reviews the current knowledge of iron homeostasis, the role of iron in ALI development, and potential therapeutic targets.
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Affiliation(s)
- Xiyang Zhang
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
- Department of Anesthesiology, Nanfang Hospital, Southern Medical University, 510515 Guangzhou, China
| | - Juan Zhou
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
| | - Bruce E. Holbein
- Department of Microbiology & Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada;
| | - Christian Lehmann
- Department of Anesthesia, Pain Management and Perioperative Medicine, Dalhousie University, Halifax, NS B3H 1X5, Canada; (X.Z.); (J.Z.)
- Department of Microbiology & Immunology, Dalhousie University, Halifax, NS B3H 1X5, Canada;
- Department of Physiology & Biophysics, Dalhousie University, Halifax, NS B3H 1X5, Canada
- Department of Pharmacology, Dalhousie University, Halifax, NS B3H 4R2, Canada
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19
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Cardona CJ, Montgomery MR. Iron regulatory proteins: players or pawns in ferroptosis and cancer? Front Mol Biosci 2023; 10:1229710. [PMID: 37457833 PMCID: PMC10340119 DOI: 10.3389/fmolb.2023.1229710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 06/21/2023] [Indexed: 07/18/2023] Open
Abstract
Cells require iron for essential functions like energy production and signaling. However, iron can also engage in free radical formation and promote cell proliferation thereby contributing to both tumor initiation and growth. Thus, the amount of iron within the body and in individual cells is tightly regulated. At the cellular level, iron homeostasis is maintained post-transcriptionally by iron regulatory proteins (IRPs). Ferroptosis is an iron-dependent form of programmed cell death with vast chemotherapeutic potential, yet while IRP-dependent targets have established roles in ferroptosis, our understanding of the contributions of IRPs themselves is still in its infancy. In this review, we present the growing circumstantial evidence suggesting that IRPs play critical roles in the adaptive response to ferroptosis and ferroptotic cell death and describe how this knowledge can be leveraged to target neoplastic iron dysregulation more effectively.
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20
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Gao M, Zhao T, Zhang C, Li P, Wang J, Han J, Zhang N, Pang B, Liu S. Ferritinophagy-mediated iron competition in RUTIs: Tug-of-war between UPEC and host. Biomed Pharmacother 2023; 163:114859. [PMID: 37167722 DOI: 10.1016/j.biopha.2023.114859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 04/24/2023] [Accepted: 05/06/2023] [Indexed: 05/13/2023] Open
Abstract
Uropathogenic Escherichia coli (UPEC) is the main pathogen of recurrent urinary tract infections (RUTIs). Urinary tract infection is a complicated interaction between UPEC and the host. During infection, UPEC can evade the host's immune response and retain in bladder epithelial cells, which requires adequate nutritional support. Iron is the first necessary trace element in life and a key nutritional factor, making it an important part of the competition between UPEC and the host. On the one hand, UPEC grabs iron to satisfy its reproduction, on the other hand, the host relies on iron to build nutritional immunity defenses against UPEC. Ferritinophagy is a selective autophagy of ferritin mediated by nuclear receptor coactivator 4, which is not only a way for the host to regulate iron metabolism to maintain iron homeostasis, but also a key point of competition between the host and UPEC. Although recent studies have confirmed the role of ferritinophagy in the progression of many diseases, the mechanism of potential interactions between ferritinophagy in UPEC and the host is poorly understood. In this paper, we reviewed the potential mechanisms of ferritinophagy-mediated iron competition in the UPEC-host interactions. This competitive relationship, like a tug-of-war, is a confrontation between the capability of UPEC to capture iron and the host's nutritional immunity defense, which could be the trigger for RUTIs. Therefore, understanding ferritinophagy-mediated iron competition may provide new strategies for exploring effective antibiotic alternative therapies to prevent and treat RUTIs.
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Affiliation(s)
- Mengqi Gao
- Department of Nephrology and Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Tingting Zhao
- Department of Nephrology, Beijing Key Laboratory for Immune-Mediated Inflammatory 9 Diseases, China-Japan Friendship Hospital, Beijing 100029, China
| | - Chuanlong Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ping Li
- Department of Nephrology, Beijing Key Laboratory for Immune-Mediated Inflammatory 9 Diseases, China-Japan Friendship Hospital, Beijing 100029, China
| | - Jiazhe Wang
- Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jiatong Han
- Department of Nephrology and Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Ning Zhang
- Department of Nephrology and Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China
| | - Bo Pang
- International Medical Department of Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Shiwei Liu
- Department of Nephrology and Endocrinology, Wangjing Hospital, China Academy of Chinese Medical Sciences, Beijing 100102, China.
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21
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Donati G, Nicoli P, Verrecchia A, Vallelonga V, Croci O, Rodighiero S, Audano M, Cassina L, Ghsein A, Binelli G, Boletta A, Mitro N, Amati B. Oxidative stress enhances the therapeutic action of a respiratory inhibitor in MYC-driven lymphoma. EMBO Mol Med 2023:e16910. [PMID: 37158102 DOI: 10.15252/emmm.202216910] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 04/13/2023] [Accepted: 04/21/2023] [Indexed: 05/10/2023] Open
Abstract
MYC is a key oncogenic driver in multiple tumor types, but concomitantly endows cancer cells with a series of vulnerabilities that provide opportunities for targeted pharmacological intervention. For example, drugs that suppress mitochondrial respiration selectively kill MYC-overexpressing cells. Here, we unravel the mechanistic basis for this synthetic lethal interaction and exploit it to improve the anticancer effects of the respiratory complex I inhibitor IACS-010759. In a B-lymphoid cell line, ectopic MYC activity and treatment with IACS-010759 added up to induce oxidative stress, with consequent depletion of reduced glutathione and lethal disruption of redox homeostasis. This effect could be enhanced either with inhibitors of NADPH production through the pentose phosphate pathway, or with ascorbate (vitamin C), known to act as a pro-oxidant at high doses. In these conditions, ascorbate synergized with IACS-010759 to kill MYC-overexpressing cells in vitro and reinforced its therapeutic action against human B-cell lymphoma xenografts. Hence, complex I inhibition and high-dose ascorbate might improve the outcome of patients affected by high-grade lymphomas and potentially other MYC-driven cancers.
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Affiliation(s)
- Giulio Donati
- European Institute of Oncology (IEO) - IRCCS, Milan, Italy
| | - Paola Nicoli
- European Institute of Oncology (IEO) - IRCCS, Milan, Italy
| | | | | | - Ottavio Croci
- Center for Genomic Science of IIT@SEMM, Milan, Italy
| | | | - Matteo Audano
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Laura Cassina
- IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Aya Ghsein
- European Institute of Oncology (IEO) - IRCCS, Milan, Italy
| | - Giorgio Binelli
- Dipartimento di Biotecnologie e Scienze della Vita, Università dell'Insubria, Varese, Italy
| | | | - Nico Mitro
- European Institute of Oncology (IEO) - IRCCS, Milan, Italy
- DiSFeB, Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Milan, Italy
| | - Bruno Amati
- European Institute of Oncology (IEO) - IRCCS, Milan, Italy
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22
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Garstka K, Dzyhovskyi V, Wątły J, Stokowa-Sołtys K, Świątek-Kozłowska J, Kozłowski H, Barceló-Oliver M, Bellotti D, Rowińska-Żyrek M. CH vs. HC-Promiscuous Metal Sponges in Antimicrobial Peptides and Metallophores. Molecules 2023; 28:molecules28103985. [PMID: 37241727 DOI: 10.3390/molecules28103985] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 05/05/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
Histidine and cysteine residues, with their imidazole and thiol moieties that deprotonate at approximately physiological pH values, are primary binding sites for Zn(II), Ni(II) and Fe(II) ions and are thus ubiquitous both in peptidic metallophores and in antimicrobial peptides that may use nutritional immunity as a way to limit pathogenicity during infection. We focus on metal complex solution equilibria of model sequences encompassing Cys-His and His-Cys motifs, showing that the position of histidine and cysteine residues in the sequence has a crucial impact on its coordination properties. CH and HC motifs occur as many as 411 times in the antimicrobial peptide database, while similar CC and HH regions are found 348 and 94 times, respectively. Complex stabilities increase in the series Fe(II) < Ni(II) < Zn(II), with Zn(II) complexes dominating at physiological pH, and Ni(II) ones-above pH 9. The stabilities of Zn(II) complexes with Ac-ACHA-NH2 and Ac-AHCA-NH2 are comparable, and a similar tendency is observed for Fe(II), while in the case of Ni(II), the order of Cys and His does matter-complexes in which the metal is anchored on the third Cys (Ac-AHCA-NH2) are thermodynamically stronger than those where Cys is in position two (Ac-ACHA-NH2) at basic pH, at which point amides start to take part in the binding. Cysteine residues are much better Zn(II)-anchoring sites than histidines; Zn(II) clearly prefers the Cys-Cys type of ligands to Cys-His and His-Cys ones. In the case of His- and Cys-containing peptides, non-binding residues may have an impact on the stability of Ni(II) complexes, most likely protecting the central Ni(II) atom from interacting with solvent molecules.
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Affiliation(s)
- Kinga Garstka
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Valentyn Dzyhovskyi
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Joanna Wątły
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | - Kamila Stokowa-Sołtys
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
| | | | - Henryk Kozłowski
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
- Faculty of Health Sciences, University of Opole, 68 Katowicka St., 45-060 Opole, Poland
| | - Miquel Barceló-Oliver
- Department of Chemistry, University of Balearic Islands, Cra. de Valldemossa, km 7.5., 07122 Palma de Mallorca, Spain
| | - Denise Bellotti
- Faculty of Chemistry, University of Wrocław, F. Joliot-Curie 14, 50-383 Wrocław, Poland
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, I-44121 Ferrara, Italy
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23
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Li C, Xiao C, Tao H, Tang X. Research progress of iron metabolism in retinal diseases. ADVANCES IN OPHTHALMOLOGY PRACTICE AND RESEARCH 2023; 3:93-100. [PMID: 37846377 PMCID: PMC10577842 DOI: 10.1016/j.aopr.2023.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 10/18/2023]
Abstract
Background Retinal diseases can lead to severe visual impairment and even blindness, but current treatments are limited. For precise targeted therapy, the pathophysiological mechanisms of the diseases still need to be further explored. Iron serves an essential role in many biological activities and helps maintain the function and morphology of the retina. The vision problems caused by retinal diseases are affecting more and more people, the study of iron metabolism in retinal diseases possesses great potential for clinical application. Main text Iron maintains a dynamic balance in the retina but in excess is toxic to the retina. Iron overload can lead to various pathological changes in the retina through oxidative stress, inflammation, cell death, angiogenesis and other pathways. It is therefore involved in the progression of retinal diseases such as age-related macular degeneration, glaucoma, diabetic retinopathy, retinitis pigmentosa, and hereditary iron overload. In recent years, iron chelators have been shown to be effective in the treatment of retinal diseases, but the exact mechanism is not yet fully understood. This question prompted further investigation into the specific mechanisms by which iron metabolism is involved in retinal disease. Conclusions This review summarizes iron metabolism processes in the retina and mechanistic studies of iron metabolism in the progression of retinal disease. It also highlights the therapeutic potential of iron chelators in retinal diseases.
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Affiliation(s)
- Cunzi Li
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Chunyu Xiao
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hui Tao
- Department of Ophthalmology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xianling Tang
- Department of Ophthalmology, Shenzhen Third People's Hospital, Shenzhen, China
- The First Affiliated Hospital of Harbin Medical University, Harbin, China
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24
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Lotan A, Luza S, Opazo CM, Ayton S, Lane DJR, Mancuso S, Pereira A, Sundram S, Weickert CS, Bousman C, Pantelis C, Everall IP, Bush AI. Perturbed iron biology in the prefrontal cortex of people with schizophrenia. Mol Psychiatry 2023; 28:2058-2070. [PMID: 36750734 PMCID: PMC10575779 DOI: 10.1038/s41380-023-01979-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 01/10/2023] [Accepted: 01/20/2023] [Indexed: 02/09/2023]
Abstract
Despite loss of grey matter volume and emergence of distinct cognitive deficits in young adults diagnosed with schizophrenia, current treatments for schizophrenia do not target disruptions in late maturational reshaping of the prefrontal cortex. Iron, the most abundant transition metal in the brain, is essential to brain development and function, but in excess, it can impair major neurotransmission systems and lead to lipid peroxidation, neuroinflammation and accelerated aging. However, analysis of cortical iron biology in schizophrenia has not been reported in modern literature. Using a combination of inductively coupled plasma-mass spectrometry and western blots, we quantified iron and its major-storage protein, ferritin, in post-mortem prefrontal cortex specimens obtained from three independent, well-characterised brain tissue resources. Compared to matched controls (n = 85), among schizophrenia cases (n = 86) we found elevated tissue iron, unlikely to be confounded by demographic and lifestyle variables, by duration, dose and type of antipsychotic medications used or by copper and zinc levels. We further observed a loss of physiologic age-dependent iron accumulation among people with schizophrenia, in that the iron level among cases was already high in young adulthood. Ferritin, which stores iron in a redox-inactive form, was paradoxically decreased in individuals with the disorder. Such iron-ferritin uncoupling could alter free, chemically reactive, tissue iron in key reasoning and planning areas of the young-adult schizophrenia cortex. Using a prediction model based on iron and ferritin, our data provide a pathophysiologic link between perturbed cortical iron biology and schizophrenia and indicate that achievement of optimal cortical iron homeostasis could offer a new therapeutic target.
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Affiliation(s)
- Amit Lotan
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Psychiatry and the Biological Psychiatry Laboratory, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - Sandra Luza
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
| | - Carlos M Opazo
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia.
| | - Scott Ayton
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Darius J R Lane
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Serafino Mancuso
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
| | - Avril Pereira
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
| | - Suresh Sundram
- Department of Psychiatry, School of Clinical Sciences, Monash University, Melbourne, VIC, Australia
- Mental Health Program, Monash Health, Melbourne, VIC, Australia
| | - Cynthia Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia
- School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia
| | - Chad Bousman
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
- Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Alberta Children's Hospital Research Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Departments of Medical Genetics, Psychiatry, Physiology & Pharmacology, University of Calgary, Calgary, AB, Canada
- The Cooperative Research Centre (CRC) for Mental Health, Melbourne, VIC, Australia
| | - Christos Pantelis
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
- North Western Mental Health, Melbourne, VIC, Australia
| | - Ian P Everall
- Melbourne Neuropsychiatry Centre, Department of Psychiatry, The University of Melbourne & Melbourne Health, Carlton, VIC, Australia
- North Western Mental Health, Melbourne, VIC, Australia
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Ashley I Bush
- Melbourne Dementia Research Centre, Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- The Cooperative Research Centre (CRC) for Mental Health, Melbourne, VIC, Australia.
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25
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Cui F, Fan R, Wang D, Li J, Li T. Research progress on iron uptake pathways and mechanisms of foodborne microorganisms and their application in the food sector. Crit Rev Food Sci Nutr 2023:1-19. [PMID: 37099732 DOI: 10.1080/10408398.2023.2204491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/28/2023]
Abstract
Iron is one of the essential nutrients for almost all microorganisms. Under iron-limited conditions, bacteria can secrete siderophores to the outside world to absorb iron for survival. This process requires the coordinated action of energy-transducing proteins, transporters, and receptors. The spoilage factors of some spoilage bacteria and the pathogenic mechanism of pathogenic bacteria are also closely related to siderophores. Meanwhile, some siderophores have also gradually evolved toward beneficial aspects. First, a variety of siderophores are classified into three aspects. In addition, representative iron uptake systems of Gram-negative and Gram-positive bacteria are described in detail to understand the common and specific pathways of iron uptake by various bacteria. In particular, the causes of siderophore-induced bacterial pathogenicity and the methods and mechanisms of inhibiting bacterial iron absorption under the involvement of siderophores are presented. Then, the application of siderophores in the food sector is mainly discussed, such as improving the food quality of dairy products and meat, inhibiting the attack of pathogenic bacteria on food, improving the plant growth environment, and promoting plant growth. Finally, this review highlights the unresolved fate of siderophores in the iron uptake system and emphasizes further development of siderophore-based substitutes for traditional drugs, new antibiotic-resistance drugs, and vaccines in the food and health sectors.
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Affiliation(s)
- Fangchao Cui
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, China
| | - Rongsen Fan
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, China
| | - Dangfeng Wang
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, China
- College of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, Jinzhou, China
| | - Tingting Li
- Key Laboratory of Biotechnology and Bioresources Utilization (Dalian Minzu University), Ministry of Education, Dalian, China
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26
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He XY, Fan X, Qu L, Wang X, Jiang L, Sang LJ, Shi CY, Lin S, Yang JC, Yang ZZ, Lei K, Li JH, Ju HQ, Yan Q, Liu J, Wang F, Shao J, Xiong Y, Wang W, Lin A. LncRNA modulates Hippo-YAP signaling to reprogram iron metabolism. Nat Commun 2023; 14:2253. [PMID: 37080959 PMCID: PMC10119135 DOI: 10.1038/s41467-023-37871-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 04/03/2023] [Indexed: 04/22/2023] Open
Abstract
Iron metabolism dysregulation is tightly associated with cancer development. But the underlying mechanisms remain poorly understood. Increasing evidence has shown that long noncoding RNAs (lncRNAs) participate in various metabolic processes via integrating signaling pathway. In this study, we revealed one iron-triggered lncRNA, one target of YAP, LncRIM (LncRNA Related to Iron Metabolism, also named ZBED5-AS1 and Loc729013), which effectively links the Hippo pathway to iron metabolism and is largely independent on IRP2. Mechanically, LncRIM directly binds NF2 to inhibit NF2-LATS1 interaction, which causes YAP activation and increases intracellular iron level via DMT1 and TFR1. Additionally, LncRIM-NF2 axis mediates cellular iron metabolism dependent on the Hippo pathway. Clinically, high expression of LncRIM correlates with poor patient survival, suggesting its potential use as a biomarker and therapeutic target. Taken together, our study demonstrated a novel mechanism in which LncRIM-NF2 axis facilitates iron-mediated feedback loop to hyperactivate YAP and promote breast cancer development.
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Affiliation(s)
- Xin-Yu He
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Cancer Center, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, 310058, Hangzhou, Zhejiang, China
| | - Xiao Fan
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Cancer Center, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, 310058, Hangzhou, Zhejiang, China
| | - Lei Qu
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Cancer Center, Zhejiang University, 310058, Hangzhou, Zhejiang, China
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, 310058, Hangzhou, Zhejiang, China
| | - Xiang Wang
- Department of Central Laboratory, the First People's Hospital of Huzhou, 158 Guangchang Back Road, 313000, Huzhou, Zhejiang, P.R. China
| | - Li Jiang
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China
| | - Ling-Jie Sang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Cheng-Yu Shi
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Siyi Lin
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Jie-Cheng Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Zuo-Zhen Yang
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Kai Lei
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Jun-Hong Li
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Huai-Qiang Ju
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, 510060, Guangzhou, Guangdong, China
| | - Qingfeng Yan
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Jian Liu
- Hangzhou Cancer Institution, Affiliated Hangzhou Cancer Hospital, Zhejiang University School of Medicine, Zhejiang University, 310002, Hangzhou, Zhejiang, China
- Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, International Campus, Zhejiang University, 314400, Haining, Zhejiang, China
| | - Fudi Wang
- Department of Nutrition, Precision Nutrition Innovation Center, School of Public Health, Zhejiang University School of Medicine, 310058, Hangzhou, Zhejiang, China
| | - Jianzhong Shao
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China
| | - Yan Xiong
- Department of Orthopedic Surgery, the Second Affiliated Hospital, School of Medicine, Zhejiang University, 88 Jiefang Road, 310000, Hangzhou, Zhejiang, China
| | - Wenqi Wang
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, 92697, USA.
| | - Aifu Lin
- MOE Laboratory of Biosystem Homeostasis and Protection, College of Life Sciences, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
- Cancer Center, Zhejiang University, 310058, Hangzhou, Zhejiang, China.
- Key Laboratory for Cell and Gene Engineering of Zhejiang Province, 310058, Hangzhou, Zhejiang, China.
- International School of Medicine, International Institutes of Medicine, The 4th Affiliated Hospital of Zhejiang University School of Medicine, 322000, Yiwu, Zhejiang, China.
- Breast Center of the First Affiliated Hospital, School of Medicine, Zhejiang University, 310003, Hangzhou, Zhejiang, China.
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27
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Kuno S, Iwai K. Oxygen modulates iron homeostasis by switching iron-sensing of NCOA4. J Biol Chem 2023; 299:104701. [PMID: 37059186 DOI: 10.1016/j.jbc.2023.104701] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 03/31/2023] [Accepted: 04/05/2023] [Indexed: 04/16/2023] Open
Abstract
To ensure proper utilization of iron and avoid its toxicity, cells are equipped with iron-sensing proteins to maintain cellular iron homeostasis. We showed previously that NCOA4, a ferritin-specific autophagy adapter, intricately regulates the fate of ferritin; upon binding to Fe3+, NCOA4 forms insoluble condensates and regulates ferritin autophagy in iron-replete conditions. Here, we demonstrate an additional iron-sensing mechanism of NCOA4. Our results indicate that the insertion of an Fe-S cluster enables preferential recognition of NCOA4 by the HERC2 ubiquitin ligase in iron-replete conditions, resulting in degradation by the proteasome and subsequent inhibition of ferritinophagy. We also found that both condensation and ubiquitin-mediated degradation of NCOA4 can occur in the same cell, and the cellular oxygen tension determines the selection of these pathways. Fe-S cluster-mediated degradation of NCOA4 is enhanced under hypoxia, whereas NCOA4 forms condensates and degrades ferritin at higher oxygen levels. Considering the involvement of iron in oxygen handling, our findings demonstrate that the NCOA4/ferritin axis is another layer of cellular iron regulation in response to oxygen levels.
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Affiliation(s)
- Sota Kuno
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Kyoto University, Yoshida-konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kazuhiro Iwai
- Department of Molecular and Cellular Physiology, Graduate School of Medicine, Kyoto University, Yoshida-konoe-cho, Sakyo-ku, Kyoto 606-8501, Japan.
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Feng J, Li Y, He F, Zhang F. RBM15 silencing promotes ferroptosis by regulating the TGF-β/Smad2 pathway in lung cancer. ENVIRONMENTAL TOXICOLOGY 2023; 38:950-961. [PMID: 36715115 DOI: 10.1002/tox.23741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 01/05/2023] [Accepted: 01/07/2023] [Indexed: 06/18/2023]
Abstract
OBJECTIVE We assessed the function and mechanism of RNA binding motif protein 15 (RBM15) silencing in lung cancer development. METHODS The effects of RBM15 knockdown on A549 and H1299 cells were evaluated by MTT, EdU, wound healing, and transwell assay. We then detected the functions of RBM15 silencing on lipid peroxidation, labile iron pool (LIP), ferrous iron (Fe2+ ), and ferroptosis-related genes. RNA sequencing was performed after RBM15 knockout in lung cancer cells, followed by differentially expressed genes (DEGs), Gene Ontology (GO), and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were performed. Finally, the expression of RBM15 and pathway-related genes was determined by western blot. RESULTS RBM15 was highly expressed in lung cancer cells. RBM15 silencing reduced the viability, inhibited cell proliferation, invasion, and migration, and suppressed tumor growth in the xenograft mouse model. Knockout of RBM15 regulated ferroptosis-related gene expression. LIP, Fe2+ , and lipid peroxidation were distinctly increased by the knockout of RBM15. RNA-seq sequencing revealed that there are 367 up-regulated and 368 down-regulated DEGs, which were enriched in molecular functions, biological processes, and cellular components. RBM15 silencing reduced the expression of TGF-β/Smad2, and TGF-β activator (SRI-011381) reversed the inhibitory effect of RBM15 silencing on tumor cell growth. CONCLUSION We demonstrated that RBM15 silencing promoted ferroptosis in lung cancer cells by TGF-β/Smad2 pathway, thereby inhibiting lung cancer cell growth, which may provide new light for lung cancer treatment.
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Affiliation(s)
- Jing Feng
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou City, Guangdong Province, China
| | - Yaling Li
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou City, Guangdong Province, China
| | - Fen He
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou City, Guangdong Province, China
| | - Fuwei Zhang
- Department of Thoracic Surgery, Zhujiang Hospital, Southern Medical University, Guangzhou City, Guangdong Province, China
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29
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Tsuji Y. Optimization of Biotinylated RNA or DNA Pull-Down Assays for Detection of Binding Proteins: Examples of IRP1, IRP2, HuR, AUF1, and Nrf2. Int J Mol Sci 2023; 24:3604. [PMID: 36835018 PMCID: PMC9965622 DOI: 10.3390/ijms24043604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Revised: 01/30/2023] [Accepted: 02/07/2023] [Indexed: 02/15/2023] Open
Abstract
Investigation of RNA- and DNA-binding proteins to a defined regulatory sequence, such as an AU-rich RNA and a DNA enhancer element, is important for understanding gene regulation through their interactions. For in vitro binding studies, an electrophoretic mobility shift assay (EMSA) was widely used in the past. In line with the trend toward using non-radioactive materials in various bioassays, end-labeled biotinylated RNA and DNA oligonucleotides can be more practical probes to study protein-RNA and protein-DNA interactions; thereby, the binding complexes can be pulled down with streptavidin-conjugated resins and identified by Western blotting. However, setting up RNA and DNA pull-down assays with biotinylated probes in optimum protein binding conditions remains challenging. Here, we demonstrate the step-by step optimization of pull-down for IRP (iron-responsive-element-binding protein) with a 5'-biotinylated stem-loop IRE (iron-responsive element) RNA, HuR, and AUF1 with an AU-rich RNA element and Nrf2 binding to an antioxidant-responsive element (ARE) enhancer in the human ferritin H gene. This study was designed to address key technical questions in RNA and DNA pull-down assays: (1) how much RNA and DNA probes we should use; (2) what binding buffer and cell lysis buffer we can use; (3) how to verify the specific interaction; (4) what streptavidin resin (agarose or magnetic beads) works; and (5) what Western blotting results we can expect from varying to optimum conditions. We anticipate that our optimized pull-down conditions can be applicable to other RNA- and DNA-binding proteins along with emerging non-coding small RNA-binding proteins for their in vitro characterization.
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Affiliation(s)
- Yoshiaki Tsuji
- Toxicology Program, Department of Biological Sciences, North Carolina State University, Campus Box 7633, Raleigh, NC 27695, USA
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30
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Kouroumalis E, Tsomidis I, Voumvouraki A. Iron as a therapeutic target in chronic liver disease. World J Gastroenterol 2023; 29:616-655. [PMID: 36742167 PMCID: PMC9896614 DOI: 10.3748/wjg.v29.i4.616] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2022] [Revised: 11/03/2022] [Accepted: 12/31/2022] [Indexed: 01/20/2023] Open
Abstract
It was clearly realized more than 50 years ago that iron deposition in the liver may be a critical factor in the development and progression of liver disease. The recent clarification of ferroptosis as a specific form of regulated hepatocyte death different from apoptosis and the description of ferritinophagy as a specific variation of autophagy prompted detailed investigations on the association of iron and the liver. In this review, we will present a brief discussion of iron absorption and handling by the liver with emphasis on the role of liver macrophages and the significance of the iron regulators hepcidin, transferrin, and ferritin in iron homeostasis. The regulation of ferroptosis by endogenous and exogenous mod-ulators will be examined. Furthermore, the involvement of iron and ferroptosis in various liver diseases including alcoholic and non-alcoholic liver disease, chronic hepatitis B and C, liver fibrosis, and hepatocellular carcinoma (HCC) will be analyzed. Finally, experimental and clinical results following interventions to reduce iron deposition and the promising manipulation of ferroptosis will be presented. Most liver diseases will be benefited by ferroptosis inhibition using exogenous inhibitors with the notable exception of HCC, where induction of ferroptosis is the desired effect. Current evidence mostly stems from in vitro and in vivo experimental studies and the need for well-designed future clinical trials is warranted.
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Affiliation(s)
- Elias Kouroumalis
- Liver Research Laboratory, University of Crete Medical School, Heraklion 71003, Greece
| | - Ioannis Tsomidis
- First Department of Internal Medicine, AHEPA University Hospital, Thessaloniki 54621, Greece
| | - Argyro Voumvouraki
- First Department of Internal Medicine, AHEPA University Hospital, Thessaloniki 54621, Greece
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31
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Dhorajia VV, Kim J, Kim Y. Early adaptive responses in the skeletal muscle of young mice with hereditary hemochromatosis. Mol Biol Rep 2023; 50:3179-3187. [PMID: 36701040 DOI: 10.1007/s11033-023-08264-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Accepted: 01/10/2023] [Indexed: 01/27/2023]
Abstract
BACKGROUND Hereditary hemochromatosis (HH) is characterized by iron overload that can cause multiple organ dysfunction primarily due to uncontrolled iron-mediated oxidative stress. Although HH leads to muscular weakness, disorder, and fatigue, the mechanism by which HH affects skeletal muscle physiology is largely unknown. METHODS Using Hfe knockout mice (6-7 months old), a well-defined mouse model of HH, we examined iron status in the skeletal muscle, as well as other organs. As mitochondria are key organelle for muscular function, this study also explored how molecular markers for mitochondrial function and related systems are regulated in the HH skeletal muscle using western blots. RESULTS Although iron overload was evident at the systemic level, only mild iron overload was observed in the skeletal muscle of HH. Of note, mitochondrial electron transport chain complex I was upregulated in the HH skeletal muscle, which was accompanied by enhanced autophagy. However, these molecular changes were not associated with oxidative stress, suggesting altered mitochondrial metabolism in the muscle in response to iron overload. CONCLUSIONS These early adaptive responses may be important for supporting mitochondrial health before fully developing skeletal muscle dysfunction in HH. More studies are needed to determine the role of autophagy in the HH-related muscle mitochondrial dysfunction.
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Affiliation(s)
- Varun V Dhorajia
- Department of Biomedical Engineering and Biotechnology, University of Massachusetts Lowell, Lowell, MA, 01854, USA
| | - Jonghan Kim
- Department of Biomedical and Nutritional Sciences, University of Massachusetts Lowell, 3 Solomont Way, Suite 4, Lowell, MA, 01854, USA.
| | - Yuho Kim
- Department of Physical Therapy and Kinesiology, University of Massachusetts Lowell, 113 Wilder Street, Suite 393, Lowell, MA, 01854, USA.
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Voss K, Sewell AE, Krystofiak ES, Gibson-Corley KN, Young AC, Basham JH, Sugiura A, Arner EN, Beavers WN, Kunkle DE, Dickson ME, Needle GA, Skaar EP, Rathmell WK, Ormseth MJ, Major AS, Rathmell JC. Elevated transferrin receptor impairs T cell metabolism and function in systemic lupus erythematosus. Sci Immunol 2023; 8:eabq0178. [PMID: 36638190 PMCID: PMC9936798 DOI: 10.1126/sciimmunol.abq0178] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Accepted: 12/15/2022] [Indexed: 01/15/2023]
Abstract
T cells in systemic lupus erythematosus (SLE) exhibit multiple metabolic abnormalities. Excess iron can impair mitochondria and may contribute to SLE. To gain insights into this potential role of iron in SLE, we performed a CRISPR screen of iron handling genes on T cells. Transferrin receptor (CD71) was identified as differentially critical for TH1 and inhibitory for induced regulatory T cells (iTregs). Activated T cells induced CD71 and iron uptake, which was exaggerated in SLE-prone T cells. Cell surface CD71 was enhanced in SLE-prone T cells by increased endosomal recycling. Blocking CD71 reduced intracellular iron and mTORC1 signaling, which inhibited TH1 and TH17 cells yet enhanced iTregs. In vivo treatment reduced kidney pathology and increased CD4 T cell production of IL-10 in SLE-prone mice. Disease severity correlated with CD71 expression on TH17 cells from patients with SLE, and blocking CD71 in vitro enhanced IL-10 secretion. T cell iron uptake via CD71 thus contributes to T cell dysfunction and can be targeted to limit SLE-associated pathology.
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Affiliation(s)
- Kelsey Voss
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Allison E. Sewell
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Evan S. Krystofiak
- Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA
| | - Katherine N. Gibson-Corley
- Division of Comparative Medicine, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Arissa C. Young
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jacob H. Basham
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Ayaka Sugiura
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Emily N. Arner
- Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - William N. Beavers
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Dillon E. Kunkle
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Megan E. Dickson
- Division of Rheumatology and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Gabriel A. Needle
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Eric P. Skaar
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Institute for Chemical Biology, Vanderbilt University, Nashville, TN, USA
| | - W. Kimryn Rathmell
- Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Michelle J. Ormseth
- Division of Rheumatology and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Tennessee Valley Healthcare System, U.S. Department of Veterans Affairs, Nashville, TN, USA
| | - Amy S. Major
- Division of Rheumatology and Immunology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
- Tennessee Valley Healthcare System, U.S. Department of Veterans Affairs, Nashville, TN, USA
| | - Jeffrey C. Rathmell
- Division of Molecular Pathogenesis, Department of Pathology, Microbiology and Immunology, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Institute for Infection, Immunology and Inflammation, Vanderbilt University Medical Center, Nashville, TN, USA
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, TN, USA
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33
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Coverdale JPC, Harrington CF, Solovyev N. Review: Advances in the Accuracy and Traceability of Metalloprotein Measurements Using Isotope Dilution Inductively Coupled Plasma Mass Spectrometry. Crit Rev Anal Chem 2023:1-18. [PMID: 36637361 DOI: 10.1080/10408347.2022.2162811] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Advances in inductively coupled plasma mass spectrometry and the methods used to prepare isotopically enriched standards, allow for the high accuracy measurement of metalloproteins by isotope dilution mass spectrometry. This technique has now reached a level of maturity whereby a step change in the accuracy, precision, and traceability of, in particular, clinical, and biomedical measurements is achievable. Current clinical measurements, which require low limits of detection in the presence of complex sample matrices, use indirect methods based on immunochemistry for the study of human disease. However, this approach suffers from poor traceability, requiring comparisons based on provision of matrix-based reference materials, used as analytical standards. This leads to difficulty when changes in the reference material are required, often resulting in a lack of interlaboratory and temporal comparability in clinical results and reference ranges. In this review, we focus on the most important metalloproteins for clinical studies, to illustrate how the attributes of chromatography coupled to inorganic mass spectrometry can be used for the direct measurement of metalloproteins such as hemoglobin, transferrin, and ceruloplasmin. By using this approach, we hope to demonstrate how isotope dilution analysis can be used as a reference method to improve traceability and underpin clinical, biomedical, and other biological measurements.
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Affiliation(s)
- James P C Coverdale
- Supra-Regional Assay Service, Trace Element Laboratory, Surrey Research Park, Guildford, United Kingdom
- School of Pharmacy, Institute of Clinical Sciences, College of Medical and Dental Sciences, University of Birmingham, Edgbaston, United Kingdom
| | - Chris F Harrington
- Supra-Regional Assay Service, Trace Element Laboratory, Surrey Research Park, Guildford, United Kingdom
- Royal Surrey NHS Foundation Trust, Guildford, United Kingdom
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Schulz V, Freibert SA, Boss L, Mühlenhoff U, Stehling O, Lill R. Mitochondrial [2Fe-2S] ferredoxins: new functions for old dogs. FEBS Lett 2023; 597:102-121. [PMID: 36443530 DOI: 10.1002/1873-3468.14546] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Revised: 11/23/2022] [Accepted: 11/23/2022] [Indexed: 12/02/2022]
Abstract
Ferredoxins (FDXs) comprise a large family of iron-sulfur proteins that shuttle electrons from NADPH and FDX reductases into diverse biological processes. This review focuses on the structure, function and specificity of mitochondrial [2Fe-2S] FDXs that are related to bacterial FDXs due to their endosymbiotic inheritance. Their classical function in cytochrome P450-dependent steroid transformations was identified around 1960, and is exemplified by mammalian FDX1 (aka adrenodoxin). Thirty years later the essential function in cellular Fe/S protein biogenesis was discovered for the yeast mitochondrial FDX Yah1 that is additionally crucial for the formation of haem a and ubiquinone CoQ6 . In mammals, Fe/S protein biogenesis is exclusively performed by the FDX1 paralog FDX2, despite the high structural similarity of both proteins. Recently, additional and specific roles of human FDX1 in haem a and lipoyl cofactor biosyntheses were described. For lipoyl synthesis, FDX1 transfers electrons to the radical S-adenosyl methionine-dependent lipoyl synthase to kickstart its radical chain reaction. The high target specificity of the two mammalian FDXs is contained within small conserved sequence motifs, that upon swapping change the target selection of these electron donors.
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Affiliation(s)
- Vinzent Schulz
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
| | - Sven-A Freibert
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
| | - Linda Boss
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
| | - Ulrich Mühlenhoff
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
| | - Oliver Stehling
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
| | - Roland Lill
- Institut für Zytobiologie, Philipps-Universität Marburg, Germany.,Zentrum für Synthetische Mikrobiologie Synmikro, Marburg, Germany
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35
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Thomas M, Coneyworth L, Welham S. Influence of income on diet quality and daily iron and zinc intake: analysis of the National Diet and Nutrition Survey of British females aged 11-14 and 15-18 years. Eur J Nutr 2023; 62:499-510. [PMID: 36149464 PMCID: PMC9510520 DOI: 10.1007/s00394-022-03000-z] [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: 07/02/2021] [Accepted: 09/07/2022] [Indexed: 02/07/2023]
Abstract
PURPOSE A negative socio-economic gradient exists for diet and health outcomes. Since cheaper diets are associated with increased energy and lower nutrient density, we investigated the influence of income on iron and zinc intakes and overall diet quality for adolescent (DQI-A) females aged 11-18 years. METHODS National Diet and Nutrition Survey (NDNS years 7 and 8) data for iron and zinc intake and overall diet quality was assessed by household income quintile across females aged 11-18 years. RESULTS Equivalised household income positively correlated with Diet quality index for adolescents (DQI-A) (P < 0.001) Females aged 15-18 years in income quintiles (IQs) I and 2, had a greater proportion of respondents with low to intermediate DQI-A score compared to higher IQs (P = 0.002). NDNS data showed intake was negatively influenced by income amongst females aged 11-14 years for iron (P = 0.009) and zinc (P = 0.001) with those from the lowest incomes consistently consuming significantly less than those from the highest. DQI-A was positively correlated with iron intakes for 11-14 (P = 0.001) and 15-18 years (P < 0.001). Forty-one percent of 15-18-year-olds plasma ferritin stores were below the 15 µg L-1 and 21% had some form of anaemia. Cereal and cereal products were the greatest contributors to iron in all groups. CONCLUSION Females in the lowest income groups are at greater risk of lower overall diet quality and inadequate iron and zinc intakes. Amongst older adolescents, there is evidence of iron stores being depleted and an increased prevalence of anaemia.
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Affiliation(s)
- Michelle Thomas
- Division of Nutritional Science, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD UK
| | - Lisa Coneyworth
- Division of Nutritional Science, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD UK
| | - Simon Welham
- Division of Nutritional Science, University of Nottingham, Sutton Bonington Campus, Sutton Bonington, Leicestershire, LE12 5RD UK
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Pagani MA, Gomez-Casati DF. Advances in Iron Retrograde Signaling Mechanisms and Uptake Regulation in Photosynthetic Organisms. Methods Mol Biol 2023; 2665:121-145. [PMID: 37166598 DOI: 10.1007/978-1-0716-3183-6_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Iron (Fe) is an essential metal for the growth and development of different organisms, including plants and algae. This metal participates in different biological processes, among which are cellular respiration and photosynthesis. Fe is found associated with heme groups and as part of inorganic Fe-S groups as cofactors of numerous cellular proteins. Although Fe is abundant in soils, it is often not bioavailable due to soil pH. For this reason, photosynthetic organisms have developed different strategies for the uptake, the sensing of Fe intracellular levels but also different mechanisms that maintain and regulate adequate concentrations of this metal in response to physiological needs. This work focuses on discussing recent advances in the characterization of the mechanisms of Fe homeostasis and Fe retrograde signaling in photosynthetic organisms.
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Affiliation(s)
- Maria A Pagani
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Rosario, Argentina.
| | - Diego F Gomez-Casati
- Centro de Estudios Fotosintéticos y Bioquímicos (CEFOBI-CONICET), Universidad Nacional de Rosario, Rosario, Argentina.
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Deng L, He S, Guo N, Tian W, Zhang W, Luo L. Molecular mechanisms of ferroptosis and relevance to inflammation. Inflamm Res 2022; 72:281-299. [PMID: 36536250 PMCID: PMC9762665 DOI: 10.1007/s00011-022-01672-1] [Citation(s) in RCA: 39] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/18/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
INTRODUCTION Inflammation is a defensive response of the organism to irritation which is manifested by redness, swelling, heat, pain and dysfunction. The inflammatory response underlies the role of various diseases. Ferroptosis, a unique modality of cell death, driven by iron-dependent lipid peroxidation, is regulated by multifarious cellular metabolic pathways, including redox homeostasis, iron processing and metabolism of lipids, as well as various signaling pathways associated with diseases. A growing body of evidence suggests that ferroptosis is involved in inflammatory response, and targeting ferroptosis has great prospects in preventing and treating inflammatory diseases. MATERIALS AND METHODS Relevant literatures on ferroptosis, inflammation, inflammatory factors and inflammatory diseases published from January 1, 2010 to now were searched in PubMed database. CONCLUSION In this review, we summarize the regulatory mechanisms associated with ferroptosis, discuss the interaction between ferroptosis and inflammation, the role of mitochondria in inflammatory ferroptosis, and the role of targeting ferroptosis in inflammatory diseases. As more and more studies have confirmed the relationship between ferroptosis and inflammation in a wide range of organ damage and degeneration, drug induction and inhibition of ferroptosis has great potential in the treatment of immune and inflammatory diseases.
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Affiliation(s)
- Liyan Deng
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Shasha He
- grid.24696.3f0000 0004 0369 153XBeijing Hospital of Traditional Chinese Medicine, Capital Medical University, Beijing Institute of Chinese Medicine, Beijing, 100000 China
| | - Nuoqing Guo
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Wen Tian
- grid.410560.60000 0004 1760 3078The First Clinical College, Guangdong Medical University, Zhanjiang, 524023 Guangdong China
| | - Weizhen Zhang
- Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China.
| | - Lianxiang Luo
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang, 524023, Guangdong, China. .,The Marine Biomedical Research Institute of Guangdong Zhanjiang, Zhanjiang, 524023, Guangdong, China.
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Zhou Q, Wang X, Zhang Y, Wang L, Chen Z. Inhibition of AEBP1 predisposes cisplatin-resistant oral cancer cells to ferroptosis. BMC Oral Health 2022; 22:478. [DOI: 10.1186/s12903-022-02503-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Accepted: 08/31/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Studies have shown that excessive iron can lead to an increased incidence of cancer. The role of adipocyte enhancer-binding protein 1 (AEBP1) on ferroptosis is unknown. Thus, we explored the effect of AEBP1 silencing in regulation of ferroptosis in cisplatin-resistant oral cancer cells.
Methods
The functions of AEBP1 silencing and sulfasalazine (SSZ) treatment were determined on oral cancer cell lines and tumor xenograft mouse models. Then we evaluated the functions of AEBP1 on cell proliferation, migration, invasion, lipid reactive oxygen species (ROS), labile iron pool (LIP) and free iron, lipid peroxidation, and expression levels of ferroptosis-related genes.
Results
AEBP1 was highly expressed in oral cancer cells and tissues. AEBP1 silencing inhibited oral cancer cell proliferation, migration, and invasion after SSZ treatment. SSZ-induced ferroptosis is due to enhanced ROS level, free iron, and lipid peroxidation, which were distinctly increased by AEBP1 silencing. Meanwhile, AEBP1 silencing enhanced the effects of SSZ on levels of LIP and Fe2+, lipid peroxidation, as well as the expression levels of ferroptosis-related genes in the tumor xenograft mouse models. Importantly, AEBP1 silencing suppressed tumor growth in vivo. Furthermore, silencing of AEBP1 might activate the JNK/ P38 /ERK pathway.
Conclusion
This research suggested that silencing of AEBP1 predisposes cisplatin-resistant oral cancer cells to ferroptosis via the JNK/p38 /ERK pathway.
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Daou Y, Falabrègue M, Pourzand C, Peyssonnaux C, Edeas M. Host and microbiota derived extracellular vesicles: Crucial players in iron homeostasis. Front Med (Lausanne) 2022; 9:985141. [PMID: 36314015 PMCID: PMC9606470 DOI: 10.3389/fmed.2022.985141] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Accepted: 09/26/2022] [Indexed: 11/23/2022] Open
Abstract
Iron is a double-edged sword. It is vital for all that’s living, yet its deficiency or overload can be fatal. In humans, iron homeostasis is tightly regulated at both cellular and systemic levels. Extracellular vesicles (EVs), now known as major players in cellular communication, potentially play an important role in regulating iron metabolism. The gut microbiota was also recently reported to impact the iron metabolism process and indirectly participate in regulating iron homeostasis, yet there is no proof of whether or not microbiota-derived EVs interfere in this relationship. In this review, we discuss the implication of EVs on iron metabolism and homeostasis. We elaborate on the blooming role of gut microbiota in iron homeostasis while focusing on the possible EVs contribution. We conclude that EVs are extensively involved in the complex iron metabolism process; they carry ferritin and express transferrin receptors. Bone marrow-derived EVs even induce hepcidin expression in β-thalassemia. The gut microbiota, in turn, affects iron homeostasis on the level of iron absorption and possibly macrophage iron recycling, with still no proof of the interference of EVs. This review is the first step toward understanding the multiplex iron metabolism process. Targeting extracellular vesicles and gut microbiota-derived extracellular vesicles will be a huge challenge to treat many diseases related to iron metabolism alteration.
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Affiliation(s)
- Yasmeen Daou
- International Society of Microbiota, Tokyo, Japan
| | - Marion Falabrègue
- INSERM, CNRS, Institut Cochin, Université de Paris, Paris, France,Laboratory of Excellence GR-Ex, Paris, France
| | - Charareh Pourzand
- Department of Life Sciences, University of Bath, Bath, United Kingdom,Medicines Development, Centre for Therapeutic Innovation, University of Bath, Bath, United Kingdom
| | - Carole Peyssonnaux
- INSERM, CNRS, Institut Cochin, Université de Paris, Paris, France,Laboratory of Excellence GR-Ex, Paris, France
| | - Marvin Edeas
- INSERM, CNRS, Institut Cochin, Université de Paris, Paris, France,Laboratory of Excellence GR-Ex, Paris, France,*Correspondence: Marvin Edeas,
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Liang G. Iron uptake, signaling, and sensing in plants. PLANT COMMUNICATIONS 2022; 3:100349. [PMID: 35706354 PMCID: PMC9483112 DOI: 10.1016/j.xplc.2022.100349] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 05/19/2022] [Accepted: 06/09/2022] [Indexed: 05/10/2023]
Abstract
Iron (Fe) is an essential micronutrient that affects the growth and development of plants because it participates as a cofactor in numerous physiological and biochemical reactions. As a transition metal, Fe is redox active. Fe often exists in soil in the form of insoluble ferric hydroxides that are not bioavailable to plants. Plants have developed sophisticated mechanisms to ensure an adequate supply of Fe in a fluctuating environment. Plants can sense Fe status and modulate the transcription of Fe uptake-associated genes, finally controlling Fe uptake from soil to root. There is a critical need to understand the molecular mechanisms by which plants maintain Fe homeostasis in response to Fe fluctuations. This review focuses on recent advances in elucidating the functions of Fe signaling components. Taking Arabidopsis thaliana and Oryza sativa as examples, this review begins by discussing the Fe acquisition systems that control Fe uptake from soil, the major components that regulate Fe uptake systems, and the perception of Fe status. Future explorations of Fe signal transduction will pave the way for understanding the regulatory mechanisms that underlie the maintenance of plant Fe homeostasis.
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Affiliation(s)
- Gang Liang
- CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Kunming, Yunnan 650223, China.
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Zhu T, Xiao Z, Yuan H, Tian H, Chen T, Chen Q, Chen M, Yang J, Zhou Q, Guo W, Xue K, Xia M, Bao J, Yang C, Duan H, Wang H, Huang Z, Liu C, Zhou J. ACO1 and IREB2 downregulation confer poor prognosis and correlate with autophagy-related ferroptosis and immune infiltration in KIRC. Front Oncol 2022; 12:929838. [PMID: 36059676 PMCID: PMC9428356 DOI: 10.3389/fonc.2022.929838] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Background ACO1 and IREB2 are two homologous cytosolic regulatory proteins, which sense iron levels and change iron metabolism–linked molecules. These two genes were noticeably decreased in kidney renal clear cell carcinoma (KIRC), which confer poor survival. Meanwhile, there is a paucity of information about the mechanisms and clinical significance of ACO1 and IREB2 downregulation in renal cancers. Methods The expression profiles of ACO1 and IREB2 were assessed using multiple public data sets via several bioinformatics platforms. Clinical and pathological information was utilized to stratify cohorts for comparison. Patient survival outcomes were evaluated using the Kaplan–Meier plotter, a meta-analysis tool. The correlations of ACO1 and IREB2 with ferroptosis were further evaluated in The Cancer Genome Atlas (TCGA)–KIRC database. Tumor immune infiltration was analyzed using the CIBERSORT, TIMER, and GEPIA data resources. ACO1 antagonist sodium oxalomalate (OMA) and IREB2 inhibitor sodium nitroprusside (SNP) was used to treat renal cancer ACHN cells together with sorafenib. Results KIRC patients with low ACO1 or IREB2 contents exhibited a remarkably worse survival rate in contrast with those with high expression in Kaplan–Meier survival analyses. Meanwhile, ACO1 and IREB2 regulate autophagy-linked ferroptosis along with immune cell invasion in the tumor microenvironment in KIRC patients. Blocking the activation of these two genes by their inhibitors OMA and SNP ameliorated sorafenib-triggered cell death, supporting that ACO1 and IREB2 could be participated in its cytotoxic influence on renal cancer cells. Conclusion ACO1 and IREB2 downregulation in renal cancers were correlated with cancer aggressiveness, cellular iron homeostasis, cytotoxic immune cell infiltration, and patient survival outcomes. Our research is integral to verify the possible significance of ACO1 and IREB2 contents as a powerful signature for targeted treatment or novel immunotherapy in clinical settings.
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Affiliation(s)
- Ting Zhu
- Department of Laboratory Medicine, Affiliated Cancer Hospital and Institute of Guangzhou Medical University, Guangzhou, China
| | - Zhuoyu Xiao
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Haoyu Yuan
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hu Tian
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Taoyi Chen
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Qi Chen
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Mingkun Chen
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Jiankun Yang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Qizhao Zhou
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Wenbin Guo
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Kangyi Xue
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Ming Xia
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Jiming Bao
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Cheng Yang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Haifeng Duan
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Hongyi Wang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Zhipeng Huang
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Cundong Liu
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
- *Correspondence: Junhao Zhou, ; Cundong Liu,
| | - Junhao Zhou
- Department of Urology, The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
- *Correspondence: Junhao Zhou, ; Cundong Liu,
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Iron oxide and iron oxyhydroxide nanoparticles impair SARS-CoV-2 infection of cultured cells. J Nanobiotechnology 2022; 20:352. [PMID: 35907835 PMCID: PMC9338509 DOI: 10.1186/s12951-022-01542-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/02/2022] [Indexed: 12/11/2022] Open
Abstract
Background Coronaviruses usually cause mild respiratory disease in humans but as seen recently, some human coronaviruses can cause more severe diseases, such as the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), the global spread of which has resulted in the ongoing coronavirus pandemic. Results In this study we analyzed the potential of using iron oxide nanoparticles (IONPs) coated with biocompatible molecules like dimercaptosuccinic acid (DMSA), 3-aminopropyl triethoxysilane (APS) or carboxydextran (FeraSpin™ R), as well as iron oxyhydroxide nanoparticles (IOHNPs) coated with sucrose (Venofer®), or iron salts (ferric ammonium citrate -FAC), to treat and/or prevent SARS-CoV-2 infection. At non-cytotoxic doses, IONPs and IOHNPs impaired virus replication and transcription, and the production of infectious viruses in vitro, either when the cells were treated prior to or after infection, although with different efficiencies. Moreover, our data suggest that SARS-CoV-2 infection affects the expression of genes involved in cellular iron metabolism. Furthermore, the treatment of cells with IONPs and IOHNPs affects oxidative stress and iron metabolism to different extents, likely influencing virus replication and production. Interestingly, some of the nanoparticles used in this work have already been approved for their use in humans as anti-anemic treatments, such as the IOHNP Venofer®, and as contrast agents for magnetic resonance imaging in small animals like mice, such as the FeraSpin™ R IONP. Conclusions Therefore, our results suggest that IONPs and IOHNPs may be repurposed to be used as prophylactic or therapeutic treatments in order to combat SARS-CoV-2 infection. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01542-2.
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Perng V, Navazesh SE, Park J, Arballo JR, Ji P. Iron Deficiency and Overload Modulate the Inflammatory Responses and Metabolism of Alveolar Macrophages. Nutrients 2022; 14:nu14153100. [PMID: 35956279 PMCID: PMC9370601 DOI: 10.3390/nu14153100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 07/16/2022] [Accepted: 07/26/2022] [Indexed: 02/04/2023] Open
Abstract
Alveolar macrophages (AM) are critical to defense against respiratory pathogens. This study evaluated cellular iron imbalance to immunometabolism in endotoxin-polarized porcine AMs (PAMs). PAMs collected from five 6-week-old pigs were treated with a basal media, iron chelator, or ferric ammonium citrate to maintain iron replete or induce iron deficiency or overload, respectively. After 24 h treatment, PAMs were challenged with saline or lipopolysaccharide (LPS) for 6 h. Cells were analyzed for gene, protein, and untargeted metabolome. Cytokines were determined in culture media. Data were assessed using two-way ANOVA. Treatments successfully induced iron deficiency and overload. The mRNA of DMT1 and ZIP14 was increased up to 300-fold by LPS, but unaffected by iron. Surprisingly, both iron deprivation and overload attenuated LPS-induced inflammation, showing less TNFα production and lower mRNA of pro- and anti-inflammatory cytokines than iron-replete PAMs. Forty-eight metabolites were altered by either or both main effects. LPS enhanced the glycolysis and polyol pathways. Iron deprivation disrupted the TCA cycle. Iron overload increased intracellular cholesterol. Interestingly, iron deprivation augmented, whereas iron overload diminished, LPS-induced itaconic acid production, which has anti-microbial and anti-inflammatory properties. Therefore, iron-deficient PAMs may be more resistant to intracellular pathogens which use PAMs as a conduit for infection.
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Affiliation(s)
| | | | | | | | - Peng Ji
- Correspondence: ; Tel.: +1-530-752-6469
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Fukumoto J, Lin M, Banday MM, Patil SS, Krishnamurthy S, Breitzig M, Soundararajan R, Galam L, Narala VR, Johns C, Patel K, Dunning J, Lockey RF, Sharma NS, Kolliputi N. Aberrant Expression of ACO1 in Vasculatures Parallels Progression of Idiopathic Pulmonary Fibrosis. Front Pharmacol 2022; 13:890380. [PMID: 35910393 PMCID: PMC9335372 DOI: 10.3389/fphar.2022.890380] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 05/04/2022] [Indexed: 11/15/2022] Open
Abstract
Rationale: Idiopathic pulmonary fibrosis (IPF) is characterized by mitochondrial dysfunction. However, details about the non-mitochondrial enzymes that sustain the proliferative nature of IPF are unclear. Aconitases are a family of enzymes that sustain metabolism inside and outside mitochondria. It is hypothesized that aconitase 1 (ACO1) plays an important role in the pathogenesis of IPF given that ACO1 represents an important metabolic hub in the cytoplasm. Objectives: To determine if ACO1 expression in IPF lungs shows specific patterns that may be important in the pathogenesis of IPF. To determine the similarities and differences in ACO1 expression in IPF, bleomycin-treated, and aging lungs. Methods: ACO1 expression in IPF lungs were characterized and compared to non-IPF controls by western blotting, immunostaining, and enzymatic activity assay. ACO1-expressing cell types were identified by multicolor immunostaining. Using similar methods, the expression profiles of ACO1 in IPF lungs versus bleomycin-treated and aged mice were investigated. Measurements and main results: Lower lobes of IPF lungs, unlike non-IPF controls, exhibit significantly high levels of ACO1. Most of the signals colocalize with von Willebrand factor (vWF), a lineage marker for vascular endothelial cells. Bleomycin-treated lungs also show high ACO1 expressions. However, most of the signals colocalize with E-cadherin and/or prosurfactant protein C, representative epithelial cell markers, in remodeled areas. Conclusions: A characteristic ACO1 expression profile observed in IPF vasculatures may be a promising diagnostic target. It also may give clues as to how de novo angiogenesis contributes to the irreversible nature of IPF.
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Affiliation(s)
- Jutaro Fukumoto
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Muling Lin
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Mudassir Meraj Banday
- Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
| | - Sahebgowda Sidramagowda Patil
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Sudarshan Krishnamurthy
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Mason Breitzig
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Ramani Soundararajan
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Lakshmi Galam
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Venkata Ramireddy Narala
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
- Department of Zoology, Yogi Vemana University, Kadapa, India
| | - Colleen Johns
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Kapilkumar Patel
- Pulmonary, Critical Care & Sleep Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
- Advanced Lung Diseases & Lung Transplantation, Department of Internal Medicine, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
| | - John Dunning
- Division of Cardiothoracic Surgery, Department of Surgery, University of South Florida, Tampa, FL, United States
| | - Richard F. Lockey
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
| | - Nirmal S. Sharma
- Pulmonary and Critical Care Medicine, Brigham and Women’s Hospital, Harvard Medical School, Boston, MA, United States
- *Correspondence: Nirmal S. Sharma, ; Narasaiah Kolliputi,
| | - Narasaiah Kolliputi
- Division of Allergy and Immunology, Department of Internal Medicine, University of South Florida, Tampa, FL, United States
- Department of Molecular Medicine, University of South Florida, Tampa, FL, United States
- *Correspondence: Nirmal S. Sharma, ; Narasaiah Kolliputi,
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Ameka MK, Beavers WN, Shaver CM, Ware LB, Kerchberger VE, Schoenfelt KQ, Sun L, Koyama T, Skaar EP, Becker L, Hasty AH. An Iron Refractory Phenotype in Obese Adipose Tissue Macrophages Leads to Adipocyte Iron Overload. Int J Mol Sci 2022; 23:ijms23137417. [PMID: 35806422 PMCID: PMC9267114 DOI: 10.3390/ijms23137417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Adipocyte iron overload is a maladaptation associated with obesity and insulin resistance. The objective of the current study was to determine whether and how adipose tissue macrophages (ATMs) regulate adipocyte iron concentrations and whether this is impacted by obesity. Using bone marrow-derived macrophages (BMDMs) polarized to M0, M1, M2, or metabolically activated (MMe) phenotypes, we showed that MMe BMDMs and ATMs from obese mice have reduced expression of several iron-related proteins. Furthermore, the bioenergetic response to iron in obese ATMs was hampered. ATMs from iron-injected lean mice increased their glycolytic and respiratory capacities, thus maintaining metabolic flexibility, while ATMs from obese mice did not. Using an isotope-based system, we found that iron exchange between BMDMs and adipocytes was regulated by macrophage phenotype. At the end of the co-culture, MMe macrophages transferred and received more iron from adipocytes than M0, M1, and M2 macrophages. This culminated in a decrease in total iron in MMe macrophages and an increase in total iron in adipocytes compared with M2 macrophages. Taken together, in the MMe condition, the redistribution of iron is biased toward macrophage iron deficiency and simultaneous adipocyte iron overload. These data suggest that obesity changes the communication of iron between adipocytes and macrophages and that rectifying this iron communication channel may be a novel therapeutic target to alleviate insulin resistance.
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Affiliation(s)
- Magdalene K. Ameka
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, TN 37212, USA;
| | - William N. Beavers
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA;
| | - Ciara M. Shaver
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
| | - Lorraine B. Ware
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Vern Eric Kerchberger
- Division of Allergy, Pulmonary, and Critical Care Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (C.M.S.); (L.B.W.); (V.E.K.)
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Kelly Q. Schoenfelt
- Department of Cancer Research, University of Chicago, Chicago, IL 60637, USA; (K.Q.S.); (L.B.)
| | - Lili Sun
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (L.S.); (T.K.)
| | - Tatsuki Koyama
- Department of Biostatistics, Vanderbilt University Medical Center, Nashville, TN 37212, USA; (L.S.); (T.K.)
| | - Eric P. Skaar
- Department of Pathology, Microbiology, and Immunology, School of Medicine, Vanderbilt University Medical Center, Nashville, TN 37212, USA;
| | - Lev Becker
- Department of Cancer Research, University of Chicago, Chicago, IL 60637, USA; (K.Q.S.); (L.B.)
| | - Alyssa H. Hasty
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, TN 37212, USA;
- VA Tennessee Valley Healthcare System, Nashville, TN 37212, USA
- Correspondence:
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Ameka M, Hasty AH. Paying the Iron Price: Liver Iron Homeostasis and Metabolic Disease. Compr Physiol 2022; 12:3641-3663. [PMID: 35766833 PMCID: PMC10155403 DOI: 10.1002/cphy.c210039] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Iron is an essential metal element whose bioavailability is tightly regulated. Under normal conditions, systemic and cellular iron homeostases are synchronized for optimal function, based on the needs of each system. During metabolic dysfunction, this synchrony is lost, and markers of systemic iron homeostasis are no longer coupled to the iron status of key metabolic organs such as the liver and adipose tissue. The effects of dysmetabolic iron overload syndrome in the liver have been tied to hepatic insulin resistance, nonalcoholic fatty liver disease, and nonalcoholic steatohepatitis. While the existence of a relationship between iron dysregulation and metabolic dysfunction has long been acknowledged, identifying correlative relationships is complicated by the prognostic reliance on systemic measures of iron homeostasis. What is lacking and perhaps more informative is an understanding of how cellular iron homeostasis changes with metabolic dysfunction. This article explores bidirectional relationships between different proteins involved in iron homeostasis and metabolic dysfunction in the liver. © 2022 American Physiological Society. Compr Physiol 12:3641-3663, 2022.
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Affiliation(s)
- Magdalene Ameka
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, Tennessee, USA
| | - Alyssa H Hasty
- Department of Molecular Physiology and Biophysics, School of Medicine, Vanderbilt University, Nashville, Tennessee, USA.,VA Tennessee Valley Healthcare System, Nashville, Tennessee, USA
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Fagundes RR, Bourgonje AR, Hu S, Barbieri R, Jansen BH, Sinnema N, Blokzijl T, Taylor CT, Weersma RK, Faber KN, Dijkstra G. HIF1α-Dependent Induction of TFRC by a Combination of Intestinal Inflammation and Systemic Iron Deficiency in Inflammatory Bowel Disease. Front Physiol 2022; 13:889091. [PMID: 35755436 PMCID: PMC9214203 DOI: 10.3389/fphys.2022.889091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 05/20/2022] [Indexed: 01/04/2023] Open
Abstract
Background and Aims: Iron deficiency (ID) is a frequent extra-intestinal manifestation in patients with Inflammatory Bowel Disease (IBD), who often do not respond to iron supplementation. Iron is a cofactor for hydroxylases that suppress the hypoxia-inducible factor-1α (HIF1α), a transcription factor regulating iron homeostasis. We hypothesized that iron deficiency affects mucosal HIF1α activity in IBD. Methods: IBD patients (n = 101) were subdivided based on iron status (ferritin levels or transferrin saturation) and systemic inflammation (C-reactive protein levels). 154 corresponding ileal and colonic biopsies were analyzed for differential expression of 20 HIF1α pathway-associated genes and related to iron and inflammation status. In vitro expression of selected HIF1α pathway genes were analyzed in wild-type and HIF1A-null Caco-2 cells. Results: Gene expression of the mucosal HIF1α pathway was most affected by intestinal location and inflammatory status. Especially, ileal mucosal TFRC expression, encoding the transferrin receptor TFR1, was increased in inflamed tissue (p < 0.001), and further enhanced in ID. Accordingly, TFRC expression in inflamed tissue associated negatively with serum iron levels, which was not observed in the non-inflamed mucosa. The HIF1α pathway agonist DMOG increased TFRC expression in Caco-2 cells, which was blunted in HIF1A-null cells. Conclusion: We demonstrate that inflammation and anatomical location primarily determine HIF1α pathway activation and downstream TFRC expression in the intestinal mucosa. IBD patients with ID may benefit from treatment with HIF1α-agonists by 1) increasing TFRC-mediated iron absorption in non-inflamed tissue and 2) decreasing mucosal inflammation, thereby improving their responsiveness to oral iron supplementation.
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Affiliation(s)
- Raphael R Fagundes
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Arno R Bourgonje
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Shixian Hu
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Ruggero Barbieri
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Bernadien H Jansen
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Nienke Sinnema
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Tjasso Blokzijl
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Cormac T Taylor
- School of Medicine and Medical Science and the Conway Institute, University College Dublin, Dublin, Ireland
| | - Rinse K Weersma
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Klaas Nico Faber
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
| | - Gerard Dijkstra
- Department of Gastroenterology and Hepatology, University of Groningen, University Medical Center Groningen, Groningen, Netherlands
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You X, Guo B, Wang Z, Ma H, Zhang X. Label-free quantitative proteomic analysis of serum exosomes from patients of renal anemia: The Good and the Bad of Roxadustat. Clin Proteomics 2022; 19:21. [PMID: 35690731 PMCID: PMC9187900 DOI: 10.1186/s12014-022-09358-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 05/19/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Roxadustat is a new oral anti-renal anemia medication that works by stabilizing hypoxia-inducible factor (HIF) which can activate the expression of more than 100 genes in addition to genes related to anemia. However, the more potential molecular targets of roxadustat are not completely clear. Therefore, it is essential to further reveal its molecular targets to guide its clinical applications. METHODS We performed label-free quantification and LC-MS/MS to study the proteomic alterations in serum exosome of renal anemia patients before and after roxadustat therapy. Results were validated by PRM. RESULTS A total of 30 proteins were significantly changed after treatment with roxadustat. Among these proteins, 18 proteins were up-regulated (and 12 were down-regulated). The results are statistically significant (P < 0.05). Then, we validated the result by PRM, the results confirmed that TFRC, HSPA8, ITGB3, COL1A2, and YWHAZ were markedly upregulated, while ITIH2 and CFH were significantly downregulated upon treatment with roxadustat. CONCLUSIONS TFRC and HSPA8 could be an important target of the action of roxadustat, and roxadustat may increase cardiovascular risk through its influence on platelet activation. Our results provide a theoretical basis for its wider clinical application and preventing expected side effects.
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Affiliation(s)
- Xiaoe You
- The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China
| | - Baochun Guo
- The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China.,Department of Nephrology, Shenzhen Peoples Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China.,Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Zhen Wang
- The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China.,Department of Nephrology, Shenzhen Peoples Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China.,Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Hualin Ma
- The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China.,Department of Nephrology, Shenzhen Peoples Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China.,Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China
| | - Xinzhou Zhang
- The Second Clinical Medical College, Jinan University (Shenzhen People's Hospital), Shenzhen, 518020, Guangdong, China. .,Department of Nephrology, Shenzhen Peoples Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China. .,Shenzhen Key Laboratory of Kidney Diseases, Shenzhen People's Hospital The Second Clinical Medical College, The First Affiliated Hospital, Jinan University, Southern University of Science and Technology, Shenzhen, 518020, Guangdong, China.
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Alves FM, Kysenius K, Caldow MK, Hardee JP, Chung JD, Trieu J, Hare DJ, Crouch PJ, Ayton S, Bush AI, Lynch GS, Koopman R. Iron overload and impaired iron handling contribute to the dystrophic pathology in models of Duchenne muscular dystrophy. J Cachexia Sarcopenia Muscle 2022; 13:1541-1553. [PMID: 35249268 PMCID: PMC9178167 DOI: 10.1002/jcsm.12950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Revised: 01/14/2022] [Accepted: 01/23/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Oxidative stress is implicated in the pathophysiology of Duchenne muscular dystrophy (DMD, caused by mutations in the dystrophin gene), which is the most common and severe of the muscular dystrophies. To our knowledge, the distribution of iron, an important modulator of oxidative stress, has not been assessed in DMD. We tested the hypotheses that iron accumulation occurs in mouse models of DMD and that modulation of iron through the diet or chelation could modify disease severity. METHODS We assessed iron distribution and total elemental iron using LA-ICP-MS on skeletal muscle cross-sections of 8-week-old Bl10 control mice and dystrophic mdx mice (with moderate dystrophy) and dystrophin/utrophin-null mice (dko, with severe dystrophy). In addition, mdx mice (4 weeks) were treated with either an iron chelator (deferiprone 150 mg/kg/day) or iron-enriched feed (containing 1% added iron as carbonyl iron). Immunoblotting was used to determine the abundance of iron- and mitochondria-related proteins. (Immuno)histochemical and mRNA assessments of fibrosis and inflammation were also performed. RESULTS We observed a significant increase in total elemental iron in hindlimb muscles of dko mice (+50%, P < 0.05) and in the diaphragm of mdx mice (+80%, P < 0.05), with both tissues exhibiting severe pathology. Iron dyshomeostasis was further evidenced by an increase in the storage protein ferritin (dko: +39%, P < 0.05) and ferroportin compared with Bl10 control mice (mdx: +152% and dko: +175%, P < 0.05). Despite having features of iron overload, dystrophic muscles had lower protein expression of ALAS-1, the rate-limiting enzyme for haem synthesis (dko -44%, P < 0.05), and the haem-containing protein myoglobin (dko -54%, P < 0.05). Deferiprone treatment tended to decrease muscle iron levels in mdx mice (-30%, P < 0.1), which was associated with lower oxidative stress and fibrosis, but suppressed haem-containing proteins and mitochondrial content. Increasing iron via dietary intervention elevated total muscle iron (+25%, P < 0.05) but did not aggravate the pathology. CONCLUSIONS Muscles from dystrophic mice have increased iron levels and dysregulated iron-related proteins that are associated with dystrophic pathology. Muscle iron levels were manipulated by iron chelation and iron enriched feed. Iron chelation reduced fibrosis and reactive oxygen species (ROS) but also suppressed haem-containing proteins and mitochondrial activity. Conversely, iron supplementation increased ferritin and haem-containing proteins but did not alter ROS, fibrosis, or mitochondrial activity. Further studies are required to investigate the contribution of impaired ferritin breakdown in the dysregulation of iron homeostasis in DMD.
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Affiliation(s)
- Francesca M Alves
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia.,Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Kai Kysenius
- Department of Biochemistry and Pharmacology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Marissa K Caldow
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Justin P Hardee
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jin D Chung
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Jennifer Trieu
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Dominic J Hare
- Monash eResearch Centre, Monash University, Clayton, Victoria, Australia
| | - Peter J Crouch
- Department of Biochemistry and Pharmacology, The University of Melbourne, Melbourne, Victoria, Australia
| | - Scott Ayton
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Ashley I Bush
- Melbourne Dementia Research Centre, The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Melbourne, Victoria, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
| | - René Koopman
- Centre for Muscle Research, Department of Anatomy and Physiology, The University of Melbourne, Melbourne, Victoria, Australia
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50
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Kung WM, Lin CC, Chen WJ, Jiang LL, Sun YY, Hsieh KH, Lin MS. Anti-Inflammatory CDGSH Iron-Sulfur Domain 2: A Biomarker of Central Nervous System Insult in Cellular, Animal Models and Patients. Biomedicines 2022; 10:biomedicines10040777. [PMID: 35453528 PMCID: PMC9030396 DOI: 10.3390/biomedicines10040777] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/05/2023] Open
Abstract
Spinal cord injury (SCI) promotes brain inflammation; conversely, brain injury promotes spinal neuron loss. There is a need to identify molecular biomarkers and therapeutic targets for central nervous system (CNS) injury. CDGSH iron-sulfur structural domain 2 (CISD2), an NF-κB antagonist, is downregulated after injury in vivo and in vitro. We aimed to examine the diagnostic value of CISD2 in patients with CNS insult. Plasma and cerebrospinal fluid (CSF) CISD2 levels were decreased in 13 patients with CNS insult and were negatively correlated with plasma IL6 levels (associated with disease severity; r = −0.7062; p < 0.01). SCI-induced inflammatory mediators delivered through CSF promoted mouse brain inflammation at 1 h post-SCI. Anti-CISD2 antibody treatment exacerbated SCI-induced inflammation in mouse spine and brain. Lipopolysaccharide-stimulated siCISD2-transfected EOC microglial cells exhibited proinflammatory phenotypes (enhanced M1 polarization, decreased M2 polarization, and increased intranuclear NF-κB p65 translocation). Plasma and CSF CISD2 levels were increased in three patients with CNS insult post-therapeutic hypothermia. CISD2 levels were negatively correlated with plasma and CSF levels of inflammatory mediators. CISD2 inhibition and potentiation experiments in cells, animals, and humans revealed CISD2 as a biomarker for CNS insult and upregulation of CISD2 anti-inflammatory properties as a potential therapeutic strategy for CNS insult.
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Affiliation(s)
- Woon-Man Kung
- Division of Neurosurgery, Department of Surgery, Taipei Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, New Taipei City 23142, Taiwan;
- Department of Exercise and Health Promotion, College of Kinesiology and Health, Chinese Culture University, Taipei 11114, Taiwan
| | - Chai-Ching Lin
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Wei-Jung Chen
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Li-Lin Jiang
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
| | - Yu-Yo Sun
- Institute of Biopharmaceutical Sciences, National Sun Yat-sen University, Kaohsiung 804201, Taiwan;
- Department of Neuroscience, Center for Brain Immunology and Glia (BIG), University of Virginia School of Medicine, Charlottesville, VA 22903, USA
| | - Kuang-Hui Hsieh
- Department of Laboratory Service, Kuang Tien General Hospital, Taichung 43303, Taiwan;
| | - Muh-Shi Lin
- Department of Biotechnology and Animal Science, College of Bioresources, National Ilan University, Yilan 26047, Taiwan; (C.-C.L.); (W.-J.C.); (L.-L.J.)
- Division of Neurosurgery, Department of Surgery, Kuang Tien General Hospital, Taichung 43303, Taiwan
- Department of Biotechnology, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Department of Health Business Administration, College of Medical and Health Care, Hung Kuang University, Taichung 43302, Taiwan
- Correspondence:
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