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Adegboro AG, Afolabi IS. Molecular mechanisms of mitochondria-mediated ferroptosis: a potential target for antimalarial interventions. Front Cell Dev Biol 2024; 12:1374735. [PMID: 38660623 PMCID: PMC11039840 DOI: 10.3389/fcell.2024.1374735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Accepted: 03/26/2024] [Indexed: 04/26/2024] Open
Abstract
Ferroptosis is an iron-dependent form of regulated cell death characterized by glutathione (GSH) depletion, glutathione peroxidase 4 (GPX4) inactivation, and the build-up of lipotoxic reactive species. Ferroptosis-targeted induction is a promising therapeutic approach for addressing antimalarial drug resistance. In addition to being the primary source of intracellular energy supply and reactive oxygen species (ROS) generation, mitochondria actively participate in diverse forms of regulated cell death, including ferroptosis. Altered mitochondrial morphology and functionality are attributed to ferroptosis. Diverse mitochondria-related proteins and metabolic activities have been implicated in fine-tuning the action of ferroptosis inducers. Herein, we review recent progress in this evolving field, elucidating the numerous mechanisms by which mitochondria regulate ferroptosis and giving an insight into the role of the organelle in ferroptosis. Additionally, we present an overview of how mitochondria contribute to ferroptosis in malaria. Furthermore, we attempt to shed light on an inclusive perspective on how targeting malaria parasites' mitochondrion and attacking redox homeostasis is anticipated to induce ferroptosis-mediated antiparasitic effects.
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Affiliation(s)
- Adegbolagun Grace Adegboro
- Department of Biochemistry, College of Science and Technology, Covenant University, Ota, Nigeria
- Covenant Applied Informatics and Communication Africa Centre of Excellence (CApIC-ACE), Covenant University, Ota, Nigeria
| | - Israel Sunmola Afolabi
- Department of Biochemistry, College of Science and Technology, Covenant University, Ota, Nigeria
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Abudureyimu G, Wu Y, Chen Y, Wang L, Hao G, Yu J, Wang J, Lin J, Huang J. MiR-134-3p targets HMOX1 to inhibit ferroptosis in granulosa cells of sheep follicles. J Ovarian Res 2024; 17:3. [PMID: 38166987 PMCID: PMC10763389 DOI: 10.1186/s13048-023-01328-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/17/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND The intricate interplay of gene expression within ovarian granulosa cells (GCs) is not fully understood. This study aimed to investigate the miRNA regulatory mechanisms of ferroptosis during the process of follicle development in lamb GCs. METHODS Employing transcriptome sequencing, we compared differentially expressed mRNAs (DE-mRNAs) and miRNAs (DE-miRNAs) in GCs from lambs treated with follicle-stimulating hormone (FL) to untreated controls (CL). We further screened differentially expressed ferroptosis-related genes and identified potential miRNA regulatory factors. The expression patterns of HMOX1 and miRNAs in GCs were validated using qRT‒PCR and Western blotting. Additionally, we investigated the regulatory effect of oar-miR-134-3p on HMOX1 and its function in ferroptosis through cell transfection and erastin treatment. RESULTS We identified a total of 4,184 DE-mRNAs and 304 DE-miRNAs. The DE-mRNAs were mainly enriched in ferroptosis, insulin resistance, and the cell cycle. Specifically, we focused on the differential expression of ferroptosis-related genes. Notably, the ferroptosis-related genes HMOX1 and SLC3A2, modulated by DE-miRNAs, were markedly suppressed in FLs. Experimental validation revealed that HMOX1 was significantly downregulated in FL and large follicles, while oar-miR-134-3p was significantly upregulated compared to that in the CLs. HMOX1 expression was regulated by the targeting effect of oar-miR-134-3p. Functional assays further revealed that modulation of oar-miR-134-3p influenced HMOX1 expression and altered cellular responses to ferroptosis induction by erastin. CONCLUSION This study suggested that oar-miR-134-3p and HMOX1 may be one of the pathways regulating ferroptosis in GCs. This finding provides new clues to understanding the development and regulatory process of follicles.
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Affiliation(s)
- Gulimire Abudureyimu
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China
| | - Yangsheng Wu
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China
| | - Ying Chen
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China
| | - Liqin Wang
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China
| | - Geng Hao
- Institute of Animal Sciences, Xinjiang Academy of Animal Science, Urumqi, 830000, Xinjiang, China
| | - Jianguo Yu
- Institute of Animal Sciences, Xinjiang Academy of Animal Science, Urumqi, 830000, Xinjiang, China
| | - Jianguo Wang
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China
| | - Jiapeng Lin
- Key Laboratory of Genetics, Breeding and Reproduction of Grass-Feeding Livestock, Ministry of Agriculture (MOA), Urumqi, 830026, Xinjiang, China.
- Key Laboratory of Animal Biotechnology of Xinjiang, Urumqi, 830026, Xinjiang, China.
- Institute of AnimalBiotechnology, Xinjiang Academy of Animal Science, Urumqi, 830026, Xinjiang, China.
| | - Juncheng Huang
- Institute of Animal Sciences, Xinjiang Academy of Animal Science, Urumqi, 830000, Xinjiang, China.
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Ježek P. Pitfalls of Mitochondrial Redox Signaling Research. Antioxidants (Basel) 2023; 12:1696. [PMID: 37759999 PMCID: PMC10525995 DOI: 10.3390/antiox12091696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 08/27/2023] [Accepted: 08/29/2023] [Indexed: 09/29/2023] Open
Abstract
Redox signaling from mitochondria (mt) to the cytosol and plasma membrane (PM) has been scarcely reported, such as in the case of hypoxic cell adaptation or (2-oxo-) 2-keto-isocaproate (KIC) β-like-oxidation stimulating insulin secretion in pancreatic β-cells. Mutual redox state influence between mitochondrial major compartments, the matrix and the intracristal space, and the cytosol is therefore derived theoretically in this article to predict possible conditions, when mt-to-cytosol and mt-to-PM signals may occur, as well as conditions in which the cytosolic redox signaling is not overwhelmed by the mitochondrial antioxidant capacity. Possible peroxiredoxin 3 participation in mt-to-cytosol redox signaling is discussed, as well as another specific case, whereby mitochondrial superoxide release is diminished, whereas the matrix MnSOD is activated. As a result, the enhanced conversion to H2O2 allows H2O2 diffusion into the cytosol, where it could be a predominant component of the H2O2 release. In both of these ways, mt-to-cytosol and mt-to-PM signals may be realized. Finally, the use of redox-sensitive probes is discussed, which disturb redox equilibria, and hence add a surplus redox-buffering to the compartment, where they are localized. Specifically, when attempts to quantify net H2O2 fluxes are to be made, this should be taken into account.
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Affiliation(s)
- Petr Ježek
- Department of Mitochondrial Physiology, No. 75, Institute of Physiology of the Czech Academy of Sciences, Vídeňská 1083, 14220 Prague, Czech Republic
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Abstract
Lipid peroxidation (LP) is the most important type of oxidative-radical damage in biological systems, owing to its interplay with ferroptosis and to its role in secondary damage to other biomolecules, such as proteins. The chemistry of LP and its biological consequences are reviewed with focus on the kinetics of the various processes, which helps understand the mechanisms and efficacy of antioxidant strategies. The main types of antioxidants are discussed in terms of structure-activity rationalization, with focus on mechanism and kinetics, as well as on their potential role in modulating ferroptosis. Phenols, pyri(mi)dinols, antioxidants based on heavy chalcogens (Se and Te), diarylamines, ascorbate and others are addressed, along with the latest unconventional antioxidant strategies based on the double-sided role of the superoxide/hydroperoxyl radical system.
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Affiliation(s)
- Luca Valgimigli
- Department of Chemistry "G. Ciamician", University of Bologna, Via Piero Gobetti 85, 40129 Bologna, Italy
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Chen J, Fu J, Zhao S, Zhang X, Chao Y, Pan Q, Sun H, Zhang J, Li B, Xue T, Li J, Liu C. Free Radical and Viral Infection: A Review from the Perspective of Ferroptosis. Vet Sci 2023; 10:456. [PMID: 37505861 PMCID: PMC10384322 DOI: 10.3390/vetsci10070456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/30/2023] [Accepted: 07/06/2023] [Indexed: 07/29/2023] Open
Abstract
Free radicals, including reactive oxygen species (ROS) and reactive nitrogen species (RNS), play critical roles in various physiological activities such as cell differentiation, apoptosis, and vascular tension when existing in cells at low levels. However, excessive amounts of free radicals are harmful, causing DNA damage, lipid peroxidation, protein degeneration, and abnormal cell death. Certain viral infections induce cells to produce excessive free radicals, which in multiple ways help the virus to replicate, mature, and exit. Iron is a necessary element for many intracellular enzymes, involved in both cellular activities and viral replication. Ferroptosis, a programmed cell death mode distinct from apoptosis, necrosis, and pyroptosis, is characterized by lipid peroxide accumulation and damage to the antioxidant system, affecting many cellular processes. Viral infection commonly manifests as decreased glutathione (GSH) content and down-regulated glutathione peroxidase 4 (GPX4) activity, similar to ferroptosis. Recent studies have suggested a possible relationship among free radicals, viral infections and ferroptosis. This review aims to elucidate the molecular mechanism linking free radicals and ferroptosis during viral infections and provide a new theoretical basis for studying viral pathogenesis and control.
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Affiliation(s)
- Jun Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Jinping Fu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Sha Zhao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Xiaoxi Zhang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Yuyang Chao
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Qunxing Pan
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Huawei Sun
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Jingfeng Zhang
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Bin Li
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
| | - Tao Xue
- College of Medicine, Linyi University, Linyi 276000, China
| | - Jingui Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Chuanmin Liu
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Veterinary Biological Engineering and Technology, Ministry of Agriculture, Nanjing 210014, China
- Key Laboratory of Veterinary Diagnosis, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- College of Medicine, Linyi University, Linyi 276000, China
- School of Life Sciences, Jiangsu University, Zhenjiang 212013, China
- College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, China
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