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Baron KR, Oviedo S, Krasny S, Zaman M, Aldakhlallah R, Mathur P, Pfeffer G, Bollong MJ, Shutt T, Grotjahn DA, Wiseman RL. Pharmacologic Activation of Integrated Stress Response Kinases Inhibits Pathologic Mitochondrial Fragmentation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.10.598126. [PMID: 38915623 PMCID: PMC11195119 DOI: 10.1101/2024.06.10.598126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
Excessive mitochondrial fragmentation is associated with the pathologic mitochondrial dysfunction implicated in the pathogenesis of etiologically-diverse diseases, including many neurodegenerative disorders. The integrated stress response (ISR) - comprising the four eIF2α kinases PERK, GCN2, PKR, and HRI - is a prominent stress-responsive signaling pathway that regulates mitochondrial morphology and function in response to diverse types of pathologic insult. This suggests that pharmacologic, stress-independent activation of the ISR represents a potential strategy to mitigate pathologic mitochondrial fragmentation associated with human disease. Here, we show that pharmacologic, stress-independent activation of the ISR kinases HRI or GCN2 promotes adaptive mitochondrial elongation and prevents mitochondrial fragmentation induced by the calcium ionophore ionomycin. Further, we show that stress-independent activation of these ISR kinases reduces mitochondrial fragmentation and restores basal mitochondrial morphology in patient fibroblasts expressing the pathogenic D414V variant of the pro-fusion mitochondrial GTPase MFN2 associated with neurological dysfunctions including ataxia, optic atrophy, and sensorineural hearing loss. These results identify pharmacologic, stress-independent activation of ISR kinases as a potential strategy to prevent pathologic mitochondrial fragmentation induced by disease-relevant chemical and genetic insults, further motivating the pursuit of highly selective ISR kinase-activating compounds as a therapeutic strategy to mitigate mitochondrial dysfunction implicated in diverse human diseases.
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Affiliation(s)
- Kelsey R. Baron
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
- These authors contributed equally
| | - Samantha Oviedo
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
- Department of Integrative Structural and Computation Biology, The Scripps Research Institute, La Jolla, CA 92037
- These authors contributed equally
| | - Sophia Krasny
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
| | - Mashiat Zaman
- Department of Biochemistry and Molecular Biology, Cummings School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Rama Aldakhlallah
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
| | - Prakhyat Mathur
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
| | - Gerald Pfeffer
- Hotchkiss Brain Institute, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary; Alberta Child Health Research Institute, Department of Medical Genetics, Cumming School of Medicine, University of Calgary
| | - Michael J. Bollong
- Department of Chemistry, The Scripps Research Institute, La Jolla, CA 92037
| | - Timothy Shutt
- Departments of Medical Genetics and Biochemistry & Molecular Biology, Cumming School of Medicine, Hotchkiss Brain Institute, Snyder Institute for Chronic Diseases, Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada
| | - Danielle A. Grotjahn
- Department of Integrative Structural and Computation Biology, The Scripps Research Institute, La Jolla, CA 92037
| | - R. Luke Wiseman
- Department of Molecular and Cellular Biology, The Scripps Research Institute, La Jolla, CA 92037
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102
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Roy R, Chick P, York E, Rawling T. Cytotoxicity of acridinium-based ionic liquids: Structure-activity relationship and mechanistic studies. Chem Biol Interact 2024; 396:111042. [PMID: 38735455 DOI: 10.1016/j.cbi.2024.111042] [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: 01/18/2024] [Revised: 04/25/2024] [Accepted: 05/05/2024] [Indexed: 05/14/2024]
Abstract
Ionic liquids (ILs) are a class of low melting point salts with physicochemical properties suitable for a range of industrial applications such as chemical processing and battery design. Major challenges to the wide-scale adoption of ILs in industry include their eco- and cytotoxic effects, however, this opens up the possibility of the use of ILs use as novel anticancer agents. Understanding the structural features that promote IL cytotoxicity is therefore important. Key structural features that can impact IL cytotoxicity include size and lipophilicity of the cationic head group. In this study, the cytotoxic effects of acridinium-based ILs containing relatively large tri- and tetracyclic cations were evaluated. It was found that 9-phenylacridinium-based ILs are potent cytotoxic agents that reduce the viability of human MDA-MB-231 breast cancer cells with IC50 concentrations in the nanomolar range. In mechanistic studies, it was found that unlike the pyridinium-based analogue, [C16Py][I], acridinium-based ILs did not inhibit oxidative phosphorylation or induce reactive oxygen species formation, and may instead target other mitochondrial processes or components such as mitochondrial DNA.
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Affiliation(s)
- Ritik Roy
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Phoenix Chick
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Edward York
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia
| | - Tristan Rawling
- School of Mathematical and Physical Sciences, Faculty of Science, University of Technology Sydney, Sydney, NSW, 2007, Australia.
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103
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Long Y, Ang Y, Chen W, Wang Y, Shi M, Hu F, Zhou Q, Shi Y, Ge B, Peng Y, Yu W, Bao H, Li Q, Duan M, Gao J. Hydrogen alleviates impaired lung epithelial barrier in acute respiratory distress syndrome via inhibiting Drp1-mediated mitochondrial fission through the Trx1 pathway. Free Radic Biol Med 2024; 218:132-148. [PMID: 38554812 DOI: 10.1016/j.freeradbiomed.2024.03.022] [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: 12/14/2023] [Revised: 03/07/2024] [Accepted: 03/26/2024] [Indexed: 04/02/2024]
Abstract
Acute respiratory distress syndrome (ARDS) is an acute and severe clinical complication lacking effective therapeutic interventions. The disruption of the lung epithelial barrier plays a crucial role in ARDS pathogenesis. Recent studies have proposed the involvement of abnormal mitochondrial dynamics mediated by dynamin-related protein 1 (Drp1) in the mechanism of impaired epithelial barrier in ARDS. Hydrogen is an anti-oxidative stress molecule that regulates mitochondrial function via multiple signaling pathways. Our previous study confirmed that hydrogen modulated oxidative stress and attenuated acute pulmonary edema in ARDS by upregulating thioredoxin 1 (Trx1) expression, but the exact mechanism remains unclear. This study aimed to investigate the effects of hydrogen on mitochondrial dynamics both in vivo and in vitro. Our study revealed that hydrogen inhibited lipopolysaccharide (LPS)-induced phosphorylation of Drp1 (at Ser616), suppressed Drp1-mediated mitochondrial fission, alleviated epithelial tight junction damage and cell apoptosis, and improved the integrity of the epithelial barrier. This process was associated with the upregulation of Trx1 in lung epithelial tissues of ARDS mice by hydrogen. In addition, hydrogen treatment reduced the production of reactive oxygen species in LPS-induced airway epithelial cells (AECs) and increased the mitochondrial membrane potential, indicating that the mitochondrial dysfunction was restored. Then, the expression of tight junction proteins occludin and zonula occludens 1 was upregulated, and apoptosis in AECs was alleviated. Remarkably, the protective effects of hydrogen on the mitochondrial and epithelial barrier were eliminated after applying the Trx1 inhibitor PX-12. The results showed that hydrogen significantly inhibited the cell apoptosis and the disruption of epithelial tight junctions, maintaining the integrity of the epithelial barrier in mice of ARDS. This might be related to the inhibition of Drp1-mediated mitochondrial fission through the Trx1 pathway. The findings of this study provided a new theoretical basis for the application of hydrogen in the clinical treatment of ARDS.
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Affiliation(s)
- Yun Long
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yang Ang
- Department of Anesthesiology, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002, China
| | - Wei Chen
- Department of Otolaryngology, Jinling College Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yujie Wang
- Department of Otolaryngology, Jinling College Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Min Shi
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, 200433, China
| | - Fan Hu
- State Key Labortory of Reproductive Medicine and Offspring Health, Nanjing Medical University, Nanjing, 211166, China
| | - Qingqing Zhou
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yadan Shi
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Baokui Ge
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Yigen Peng
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Wanyou Yu
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China
| | - Hongguang Bao
- Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Jiangsu, 210000, China
| | - Qian Li
- Department of Anesthesiology, Jiangning Hospital Affiliated to Nanjing Medical University, Nanjing, 211100, China; Department of Anesthesiology, Nanjing First Hospital, Nanjing Medical University, Jiangsu, 210000, China.
| | - Manlin Duan
- Department of Anesthesiology, BenQ Medical Center, The Affiliated BenQ Hospital of Nanjing Medical University, Nanjing, 210019, China.
| | - Ju Gao
- Department of Anesthesiology, Yangzhou Clinical Medical College, Nanjing Medical University, Yangzhou, 225001, China; Department of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, 225001, China.
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104
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Huang Y, Zhang Z, Xu Y, Peng Y, Xu R, Luan Y, Bie X, Jia J, Zhang C, Han T, Zhou B, Li Z, Zheng H, Yang D, He Y. ARMC10 regulates mitochondrial dynamics and affects mitochondrial function via the Wnt/β-catenin signalling pathway involved in ischaemic stroke. J Cell Mol Med 2024; 28:e18449. [PMID: 38924214 PMCID: PMC11196997 DOI: 10.1111/jcmm.18449] [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: 03/02/2023] [Revised: 04/25/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024] Open
Abstract
Mitochondrial dynamics has emerged as an important target for neuronal protection after cerebral ischaemia/reperfusion. Therefore, the aim of this study was to investigate the mechanism by which ARMC10 regulation of mitochondrial dynamics affects mitochondrial function involved in ischaemic stroke (IS). Mitochondrial morphology was detected by laser scanning confocal microscopy (LSCM), and mitochondrial ultrastructural alterations were detected by electron microscopy. The expression of mitochondrial dynamics-related genes Drp1, Mfn1, Mfn2, Fis1, OPA1 and ARMC10 and downstream target genes c-Myc, CyclinD1 and AXIN2 was detected by RT-qPCR. Western blot was used to detect the protein expression of β-catenin, GSK-3β, p-GSK-3β, Bcl-2 and Bax. DCFH-DA fluorescent probe was to detect the effect of ARMC10 on mitochondrial ROS level, Annexin V-FITC fluorescent probe was to detect the effect of ARMC10 on apoptosis, and ATP assay kit was to detect the effect of ARMC10 on ATP production. Mitochondrial dynamics was dysregulated in clinical IS samples and in the OGD/R cell model, and the relative expression of ARMC10 gene was significantly decreased in IS group (p < 0.05). Knockdown and overexpression of ARMC10 could affect mitochondrial dynamics, mitochondrial function and neuronal apoptosis. Agonist and inhibitor affected mitochondrial function and neuronal apoptosis by targeting Wnt/β-Catenin signal pathway. In the OGD/R model, ARMC10 affected mitochondrial function and neuronal apoptosis through the mechanism that regulates Wnt/β-catenin signalling pathway. ARMC10 regulates mitochondrial dynamics and protects mitochondrial function by activating Wnt/β-catenin signalling pathway, to exert neuroprotective effects.
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Affiliation(s)
- Yanyang Huang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Zhaojing Zhang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yatian Xu
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yue Peng
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Ruochen Xu
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Yingying Luan
- Reproduction CenterThe Third Affiliated Hospital of ZhengZhou UniversityZhengzhouChina
| | - Xiaoshuai Bie
- Clinical Laboratory CenterQingyuan Maternal and Child Health HospitalQingyuanChina
| | - Jing Jia
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Chi Zhang
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Tianyi Han
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Baixue Zhou
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Zhihao Li
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Hong Zheng
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
| | - Dongzhi Yang
- School of Life SciencesZhengzhou UniversityZhengzhouChina
| | - Ying He
- Department of Medical Genetics and Cell Biology, School of Basic Medical SciencesZhengzhou UniversityZhengzhouChina
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105
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Su Y, Yu Y, Quan J, Zhang J, Xu Y. Alcohol exposure during pregnancy induces cardiac mitochondrial damage in offspring mice. Birth Defects Res 2024; 116:e2369. [PMID: 38877673 DOI: 10.1002/bdr2.2369] [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: 01/29/2024] [Revised: 05/15/2024] [Accepted: 05/23/2024] [Indexed: 06/16/2024]
Abstract
BACKGROUND Prenatal alcohol exposure (PAE) has been linked to congenital heart disease and fetal alcohol syndrome. The heart primarily relies on mitochondria to generate energy, so impaired mitochondrial function due to alcohol exposure can significantly affect cardiac development and function. Our study aimed to investigate the impact of PAE on myocardial and mitochondrial functions in offspring mice. METHODS We administered 30% alcohol (3 g/kg) to pregnant C57BL/6 mice during the second trimester. We assessed cardiac function by transthoracic echocardiography, observed myocardial structure and fibrosis through staining tests and electron transmission microscopy, and detected cardiomyocyte apoptosis with dUTP nick end labeling assay and real-time quantitative PCR. Additionally, we measured the reactive oxygen species content, ATP level, and mitochondrial DNA copy number in myocardial mitochondria. Mitochondrial damage was evaluated by assessing the level of mitochondrial membrane potential and the opening degree of mitochondrial permeability transition pores. RESULTS Our findings revealed that PAE caused cardiac systolic dysfunction, ventricular enlargement, thinned ventricular wall, cardiac fibrosis in the myocardium, scattered loss of cardiomyocytes, and disordered arrangement of myocardial myotomes in the offspring. Furthermore, we observed a significant increase in mitochondrial reactive oxygen species content, a decrease in mitochondrial membrane potential, ATP level, and mitochondrial DNA copy number, and sustained opening of mitochondrial permeability transition pores in the heart tissues of the offspring. CONCLUSIONS These results indicated that PAE had adverse effects on the cardiac structure and function of the newborn mice and could trigger oxidative stress in their myocardia and contribute to mitochondrial dysfunction.
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Affiliation(s)
- Yujuan Su
- Department of Anesthesiology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Yujuan Yu
- Department of Anesthesiology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Junjun Quan
- Department of Anesthesiology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Junjie Zhang
- Department of Anesthesiology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ying Xu
- Department of Anesthesiology, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing Key Laboratory of Pediatrics, Children's Hospital of Chongqing Medical University, Chongqing, China
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106
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Da W, Chen Q, Shen B. The current insights of mitochondrial hormesis in the occurrence and treatment of bone and cartilage degeneration. Biol Res 2024; 57:37. [PMID: 38824571 PMCID: PMC11143644 DOI: 10.1186/s40659-024-00494-1] [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: 07/31/2023] [Accepted: 04/03/2024] [Indexed: 06/03/2024] Open
Abstract
It is widely acknowledged that aging, mitochondrial dysfunction, and cellular phenotypic abnormalities are intricately associated with the degeneration of bone and cartilage. Consequently, gaining a comprehensive understanding of the regulatory patterns governing mitochondrial function and its underlying mechanisms holds promise for mitigating the progression of osteoarthritis, intervertebral disc degeneration, and osteoporosis. Mitochondrial hormesis, referred to as mitohormesis, represents a cellular adaptive stress response mechanism wherein mitochondria restore homeostasis and augment resistance capabilities against stimuli by generating reactive oxygen species (ROS), orchestrating unfolded protein reactions (UPRmt), inducing mitochondrial-derived peptides (MDP), instigating mitochondrial dynamic changes, and activating mitophagy, all prompted by low doses of stressors. The varying nature, intensity, and duration of stimulus sources elicit divergent degrees of mitochondrial stress responses, subsequently activating one or more signaling pathways to initiate mitohormesis. This review focuses specifically on the effector molecules and regulatory networks associated with mitohormesis, while also scrutinizing extant mechanisms of mitochondrial dysfunction contributing to bone and cartilage degeneration through oxidative stress damage. Additionally, it underscores the potential of mechanical stimulation, intermittent dietary restrictions, hypoxic preconditioning, and low-dose toxic compounds to trigger mitohormesis, thereby alleviating bone and cartilage degeneration.
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Affiliation(s)
- Wacili Da
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Quan Chen
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China
| | - Bin Shen
- Department of Orthopedic Surgery and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China.
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107
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Casimir P, Iwata R, Vanderhaeghen P. Linking mitochondria metabolism, developmental timing, and human brain evolution. Curr Opin Genet Dev 2024; 86:102182. [PMID: 38555796 PMCID: PMC11190843 DOI: 10.1016/j.gde.2024.102182] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2024] [Revised: 03/03/2024] [Accepted: 03/05/2024] [Indexed: 04/02/2024]
Abstract
Changes in developmental timing are an important factor of evolution in organ shape and function. This is particularly striking for human brain development, which, compared with other mammals, is considerably prolonged at the level of the cerebral cortex, resulting in brain neoteny. Here, we review recent findings that indicate that mitochondria and metabolism contribute to species differences in the tempo of cortical neuron development. Mitochondria display species-specific developmental timeline and metabolic activity patterns that are highly correlated with the speed of neuron maturation. Enhancing mitochondrial activity in human cortical neurons results in their accelerated maturation, while its reduction leads to decreased maturation rates in mouse neurons. Together with other global and gene-specific mechanisms, mitochondria thus act as a cellular hourglass of neuronal developmental tempo and may thereby contribute to species-specific features of human brain ontogeny.
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Affiliation(s)
- Pierre Casimir
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; Department of Neurosciences, Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium; Université Libre de Bruxelles (ULB), Institut de Recherches en Biologie Humaine et Moléculaire (IRIBHM), and ULB Neuroscience Institute (UNI), 1070 Brussels, Belgium; Department of Neurology, Centre Hospitalier Universitaire Brugmann, ULB, 1020 Brussels, Belgium
| | - Ryohei Iwata
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; Department of Neurosciences, Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium. https://twitter.com/@Ryo2Iwata
| | - Pierre Vanderhaeghen
- VIB Center for Brain & Disease Research, 3000 Leuven, Belgium; Department of Neurosciences, Leuven Brain Institute, KU Leuven, 3000 Leuven, Belgium.
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108
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Zhang D, Deng W, Jiang T, Zhao Y, Bai D, Tian Y, Kong S, Zhang L, Wang H, Gao S, Lu Z. Maternal Ezh1/2 deficiency impairs the function of mitochondria in mouse oocytes and early embryos. J Cell Physiol 2024; 239:e31244. [PMID: 38529784 DOI: 10.1002/jcp.31244] [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: 09/06/2023] [Revised: 02/23/2024] [Accepted: 02/27/2024] [Indexed: 03/27/2024]
Abstract
Maternal histone methyltransferase is critical for epigenetic regulation and development of mammalian embryos by regulating histone and DNA modifications. Here, we reported a novel mechanism by revealing the critical effects of maternal Ezh1/2 deletion on mitochondria in MII oocytes and early embryos in mice. We found that Ezh1/2 knockout in mouse MII oocytes impaired the structure of mitochondria and decreased its number, but membrane potential and respiratory function of mitochondrion were increased. The similar effects of Ezh1/2 deletion have been observed in 2-cell and morula embryos, indicating that the effects of maternal Ezh1/2 deficiency on mitochondrion extend to early embryos. However, the loss of maternal Ezh1/2 resulted in a severe defect of morula: the number, membrane potential, respiratory function, and ATP production of mitochondrion dropped significantly. Content of reactive oxygen species was raised in both MII oocytes and early embryos, suggesting maternal Ezh1/2 knockout induced oxidative stress. In addition, maternal Ezh1/2 ablation interfered the autophagy in morula and blastocyst embryos. Finally, maternal Ezh1/2 deletion led to cell apoptosis in blastocyst embryos in mice. By analyzing the gene expression profile, we revealed that maternal Ezh1/2 knockout affected the expression of mitochondrial related genes in MII oocytes and early embryos. The chromatin immunoprecipitation-polymerase chain reaction assay demonstrated that Ezh1/2 directly regulated the expression of genes Fxyd6, Adpgk, Aurkb, Zfp521, Ehd3, Sgms2, Pygl, Slc1a1, and Chst12 by H3K27me3 modification. In conclusion, our study revealed the critical effect of maternal Ezh1/2 on the structure and function of mitochondria in oocytes and early embryos, and suggested a novel mechanism underlying maternal epigenetic regulation on early embryonic development through the modulation of mitochondrial status.
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Affiliation(s)
- Dan Zhang
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Wenbo Deng
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Ting Jiang
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Yinan Zhao
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Dandan Bai
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yingpu Tian
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
| | - Shuangbo Kong
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Leilei Zhang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Haibin Wang
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Shaorong Gao
- Shanghai Key Laboratory of Signaling and Disease Research, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Zhongxian Lu
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research, Xiamen University, Xiamen, Fujian, China
- Fujian Provincial Key Laboratory of Reproductive Health Research, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
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109
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Lunova M, Jirsa M, Dejneka A, Sullivan GJ, Lunov O. Mechanical regulation of mitochondrial morphodynamics in cancer cells by extracellular microenvironment. BIOMATERIALS AND BIOSYSTEMS 2024; 14:100093. [PMID: 38585282 PMCID: PMC10992729 DOI: 10.1016/j.bbiosy.2024.100093] [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: 11/28/2023] [Revised: 03/05/2024] [Accepted: 03/24/2024] [Indexed: 04/09/2024] Open
Abstract
Recently, it has been recognized that physical abnormalities (e.g. elevated solid stress, elevated interstitial fluid pressure, increased stiffness) are associated with tumor progression and development. Additionally, these mechanical forces originating from tumor cell environment through mechanotransduction pathways can affect metabolism. On the other hand, mitochondria are well-known as bioenergetic, biosynthetic, and signaling organelles crucial for sensing stress and facilitating cellular adaptation to the environment and physical stimuli. Disruptions in mitochondrial dynamics and function have been found to play a role in the initiation and advancement of cancer. Consequently, it is logical to hypothesize that mitochondria dynamics subjected to physical cues may play a pivotal role in mediating tumorigenesis. Recently mitochondrial biogenesis and turnover, fission and fusion dynamics was linked to mechanotransduction in cancer. However, how cancer cell mechanics and mitochondria functions are connected, still remain poorly understood. Here, we discuss recent studies that link mechanical stimuli exerted by the tumor cell environment and mitochondria dynamics and functions. This interplay between mechanics and mitochondria functions may shed light on how mitochondria regulate tumorigenesis.
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Affiliation(s)
- Mariia Lunova
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Milan Jirsa
- Institute for Clinical & Experimental Medicine (IKEM), Prague 14021, Czech Republic
| | - Alexandr Dejneka
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
| | | | - Oleg Lunov
- Department of Optical and Biophysical Systems, Institute of Physics of the Czech Academy of Sciences, Prague 18200, Czech Republic
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110
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Nie X, Fan J, Wang Y, Xie R, Chen C, Li H, Wang DW. lncRNA ZNF593-AS inhibits cardiac hypertrophy and myocardial remodeling by upregulating Mfn2 expression. Front Med 2024; 18:484-498. [PMID: 38743133 DOI: 10.1007/s11684-023-1036-4] [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: 05/06/2023] [Accepted: 10/15/2023] [Indexed: 05/16/2024]
Abstract
lncRNA ZNF593 antisense (ZNF593-AS) transcripts have been implicated in heart failure through the regulation of myocardial contractility. The decreased transcriptional activity of ZNF593-AS has also been detected in cardiac hypertrophy. However, the function of ZNF593-AS in cardiac hypertrophy remains unclear. Herein, we report that the expression of ZNF593-AS reduced in a mouse model of left ventricular hypertrophy and cardiomyocytes in response to treatment with the hypertrophic agonist phenylephrine (PE). In vivo, ZNF593-AS aggravated pressure overload-induced cardiac hypertrophy in knockout mice. By contrast, cardiomyocyte-specific transgenic mice (ZNF593-AS MHC-Tg) exhibited attenuated TAC-induced cardiac hypertrophy. In vitro, vector-based overexpression using murine or human ZNF593-AS alleviated PE-induced myocyte hypertrophy, whereas GapmeR-induced inhibition aggravated hypertrophic phenotypes. By using RNA-seq and gene set enrichment analyses, we identified a link between ZNF593-AS and oxidative phosphorylation and found that mitofusin 2 (Mfn2) is a direct target of ZNF593-AS. ZNF593-AS exerts an antihypertrophic effect by upregulating Mfn2 expression and improving mitochondrial function. Therefore, it represents a promising therapeutic target for combating pathological cardiac remodeling.
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Affiliation(s)
- Xiang Nie
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China
| | - Jiahui Fan
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China
| | - Yanwen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China
| | - Rong Xie
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China
| | - Huaping Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China.
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan, 430030, China.
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Hou X, Pan D, Zhong D, Gong Q, Luo K. Dendronized Polymer-Derived Nanomedicines for Mitochondrial Dynamics Regulation and Immune Modulation. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2400582. [PMID: 38477381 DOI: 10.1002/adma.202400582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/29/2024] [Indexed: 03/14/2024]
Abstract
The effects of dendron side chains in polymeric conjugates on tumor penetration and antigen presentation are systematically examined. Three polymer-gemcitabine (Gem) conjugates (pG0-Gem, pG1-Gem, pG2-Gem) are designed and prepared. The pG2-Gem conjugate uniquely binds to the mitochondria of tumor cells, thus regulating mitochondrial dynamics. The interaction between the pG2-Gem conjugate and the mitochondria promotes great penetration and accumulation of the conjugate at the tumor site, resulting in pronounced antitumor effects in an animal model. Such encouraging therapeutic effects can be ascribed to immune modulation since MHC-1 antigen presentation is significantly enhanced due to mitochondrial fusion and mitochondrial metabolism alteration after pG2-Gem treatment. Crucially, the drug-free dendronized polymer, pG2, is identified to regulate mitochondrial dynamics, and the regulation is independent of the conjugated Gem. Furthermore, the combination of pG2-Gem with anti-PD-1 antibody results in a remarkable tumor clearance rate of 87.5% and a prolonged survival rate of over 150 days, demonstrating the potential of dendronized polymers as an innovative nanoplatform for metabolic modulation and synergistic tumor immunotherapy.
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Affiliation(s)
- Xingyu Hou
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dayi Pan
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Dan Zhong
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Qiyong Gong
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
- Department of Radiology, West China Xiamen Hospital of Sichuan University, Xiamen, 361000, China
| | - Kui Luo
- Department of Radiology, Huaxi MR Research Center (HMRRC), Frontiers Science Center for Disease-Related Molecular Network, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, 610041, China
- Functional and Molecular Imaging Key Laboratory of Sichuan Province, and Research Unit of Psychoradiology, Chinese Academy of Medical Sciences, Chengdu, 610041, China
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112
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Nicolson GL, Ferreira de Mattos G. Membrane Lipid Replacement for reconstituting mitochondrial function and moderating cancer-related fatigue, pain and other symptoms while counteracting the adverse effects of cancer cytotoxic therapy. Clin Exp Metastasis 2024; 41:199-217. [PMID: 38879842 DOI: 10.1007/s10585-024-10290-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Accepted: 04/25/2024] [Indexed: 06/30/2024]
Abstract
Cancer-related fatigue, pain, gastrointestinal and other symptoms are among the most familiar complaints in practically every type and stage of cancer, especially metastatic cancers. Such symptoms are also related to cancer oxidative stress and the damage instigated by cancer cytotoxic therapies to cellular membranes, especially mitochondrial membranes. Cancer cytotoxic therapies (chemotherapy and radiotherapy) often cause adverse symptoms and induce patients to terminate their anti-neoplastic regimens. Cancer-related fatigue, pain and other symptoms and the adverse effects of cancer cytotoxic therapies can be safely moderated with oral Membrane Lipid Replacement (MLR) glycerolphospholipids and mitochondrial cofactors, such as coenzyme Q10. MLR provides essential membrane lipids and precursors to maintain mitochondrial and other cellular membrane functions and reduces fatigue, pain, gastrointestinal, inflammation and other symptoms. In addition, patients with a variety of chronic symptoms benefit from MLR supplements, and MLR also has the ability to enhance the bioavailability of nutrients and slowly remove toxic, hydrophobic molecules from cells and tissues.
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Affiliation(s)
- Garth L Nicolson
- Department of Molecular Pathology, The Institute for Molecular Medicine, Huntington Beach, CA, 92647, USA.
- Department of Molecular Pathology, The Institute for Molecular Medicine, P.O. Box 9355, S. Laguna Beach, CA, 92652, USA.
| | - Gonzalo Ferreira de Mattos
- Laboratory of Ion Channels, Biological Membranes and Cell Signaling, Department of Biophysics, Facultad de Medicina, Universidad de La República, Montevideo, Uruguay
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113
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Guo X, Wang J, Wu Y, Zhu X, Xu L. Renal aging and mitochondrial quality control. Biogerontology 2024; 25:399-414. [PMID: 38349436 DOI: 10.1007/s10522-023-10091-6] [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: 11/08/2023] [Accepted: 12/29/2023] [Indexed: 06/01/2024]
Abstract
Mitochondria are dynamic organelles that participate in different cellular process that control metabolism, cell division, and survival, and the kidney is one of the most metabolically active organs that contains abundant mitochondria. Perturbations in mitochondrial homeostasis in the kidney can accelerate kidney aging, and maintaining mitochondrial homeostasis can effectively delay aging in the kidney. Kidney aging is a degenerative process linked to detrimental processes. The significance of aberrant mitochondrial homeostasis in renal aging has received increasing attention. However, the contribution of mitochondrial quality control (MQC) to renal aging has not been reviewed in detail. Here, we generalize the current factors contributing to renal aging, review the alterations in MQC during renal injury and aging, and analyze the relationship between mitochondria and intrinsic renal cells. We also introduce MQC in the context of renal aging, and discuss the study of mitochondria in the intrinsic cells of the kidney, which is the innovation of our paper. In addition, during kidney injury and repair, the specific functions and regulatory mechanisms of MQC systems in resident and circulating cell types remain unclear. Currently, most of the studies we reviewed are based on animal and cellular models, the relationship between renal tissue aging and mitochondria has not been adequately investigated in clinical studies, and there is still a long way to go.
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Affiliation(s)
- Xiuli Guo
- Department of Laboratory, The First Hospital of China Medical University, Shenyang, China
| | - Jiao Wang
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yinjie Wu
- Department of Gynecology, The First Hospital of China Medical University, Shenyang, China
| | - Xinwang Zhu
- Department of Nephrology, The First Hospital of China Medical University, Shenyang, China
| | - Li Xu
- Department of Laboratory Medicine, The Second Affiliated Hospital of Guangdong Medical University, Zhanjiang, 524003, Guangdong, People's Republic of China.
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114
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Batheja S, Gupta S, Tejavath KK, Gupta U. TPP-based conjugates: potential targeting ligands. Drug Discov Today 2024; 29:103983. [PMID: 38641237 DOI: 10.1016/j.drudis.2024.103983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2023] [Revised: 03/30/2024] [Accepted: 04/10/2024] [Indexed: 04/21/2024]
Abstract
Mitochondria are one of the major sources of energy as well as regulators of cancer cell metabolism. Thus, they are potential targets for the effective treatment and management of cancer. Research has explored triphenylphosphonium (TPP) derivatives as potent cancer-targeting ligands because of their lipophilic nature and mitochondrial affinity. In this review, we summarize the utility of TPP-based conjugates targeting mitochondria in different types of cancer and other diseases, such as neurodegenerative and cardiovascular disorders. Such conjugates offer versatile therapeutic potential by modulating membrane potential, influencing reactive oxygen species (ROS) production, and coupling of molecular modifications (such as ATP metabolism and energy metabolism). Thus, we highlight TPP conjugates as promising mitochondria-targeting agents for use in targeted drug delivery systems.
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Affiliation(s)
- Sanya Batheja
- Nanopolymeric Drug Delivery Lab, Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer 305817, India
| | - Shruti Gupta
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer 305817, India
| | - Kiran Kumar Tejavath
- Department of Biochemistry, School of Life Sciences, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer 305817, India; Department of Biochemistry, All India Institute of Medical Sciences, BIBINAGAR, Hyderabad Metropolitan Region (HMR), Telangana 508126, India.
| | - Umesh Gupta
- Nanopolymeric Drug Delivery Lab, Department of Pharmacy, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Kishangarh, Ajmer 305817, India.
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115
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Kataura T, Sedlackova L, Sun C, Kocak G, Wilson N, Banks P, Hayat F, Trushin S, Trushina E, Maddocks ODK, Oblong JE, Miwa S, Imoto M, Saiki S, Erskine D, Migaud ME, Sarkar S, Korolchuk VI. Targeting the autophagy-NAD axis protects against cell death in Niemann-Pick type C1 disease models. Cell Death Dis 2024; 15:382. [PMID: 38821960 PMCID: PMC11143325 DOI: 10.1038/s41419-024-06770-y] [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: 11/16/2023] [Revised: 05/19/2024] [Accepted: 05/22/2024] [Indexed: 06/02/2024]
Abstract
Impairment of autophagy leads to an accumulation of misfolded proteins and damaged organelles and has been implicated in plethora of human diseases. Loss of autophagy in actively respiring cells has also been shown to trigger metabolic collapse mediated by the depletion of nicotinamide adenine dinucleotide (NAD) pools, resulting in cell death. Here we found that the deficit in the autophagy-NAD axis underpins the loss of viability in cell models of a neurodegenerative lysosomal storage disorder, Niemann-Pick type C1 (NPC1) disease. Defective autophagic flux in NPC1 cells resulted in mitochondrial dysfunction due to impairment of mitophagy, leading to the depletion of both the reduced and oxidised forms of NAD as identified via metabolic profiling. Consequently, exhaustion of the NAD pools triggered mitochondrial depolarisation and apoptotic cell death. Our chemical screening identified two FDA-approved drugs, celecoxib and memantine, as autophagy activators which effectively restored autophagic flux, NAD levels, and cell viability of NPC1 cells. Of biomedical relevance, either pharmacological rescue of the autophagy deficiency or NAD precursor supplementation restored NAD levels and improved the viability of NPC1 patient fibroblasts and induced pluripotent stem cell (iPSC)-derived cortical neurons. Together, our findings identify the autophagy-NAD axis as a mechanism of cell death and a target for therapeutic interventions in NPC1 disease, with a potential relevance to other neurodegenerative disorders.
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Affiliation(s)
- Tetsushi Kataura
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK.
- Department of Neurology, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Lucia Sedlackova
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK.
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain.
| | - Congxin Sun
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - Gamze Kocak
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK
| | - Niall Wilson
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Peter Banks
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Faisal Hayat
- Mitchell Cancer Institute, Department of Pharmacology, F. P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Sergey Trushin
- Department of Neurology, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA
| | - Eugenia Trushina
- Department of Neurology, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA
- Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, 200 First St. SW, Rochester, MN, 55905, USA
| | | | - John E Oblong
- The Procter & Gamble Company, Cincinnati, OH, 45040, USA
| | - Satomi Miwa
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK
| | - Masaya Imoto
- Division for Development of Autophagy Modulating Drugs, Juntendo University Graduate School of Medicine, Bunkyo, Tokyo, 113-8421, Japan
| | - Shinji Saiki
- Department of Neurology, Institute of Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan
| | - Daniel Erskine
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Marie E Migaud
- Mitchell Cancer Institute, Department of Pharmacology, F. P. Whiddon College of Medicine, University of South Alabama, Mobile, AL, 36604, USA
| | - Sovan Sarkar
- Institute of Cancer and Genomic Sciences, Institute of Biomedical Research, College of Medical and Dental Sciences, University of Birmingham, Birmingham, B15 2TT, UK.
| | - Viktor I Korolchuk
- Biosciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, NE4 5PL, UK.
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116
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Zhang J, Wei Q, Wu SK, Wang F, Yuan TL, Wang J. Inhibition of Drp1-mediated mitochondrial fission improves contrast-induced acute kidney injury by targeting the mROS-TXNIP-NLRP3 inflammasome axis. Int Immunopharmacol 2024; 133:112001. [PMID: 38608443 DOI: 10.1016/j.intimp.2024.112001] [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: 02/13/2024] [Revised: 03/31/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024]
Abstract
Acute kidney injury (AKI) is a critical complication known for their extremely high mortality rate and lack of effective clinical therapy. Disorders in mitochondrial dynamics possess a pivotal role in the occurrence and progression of contrast-induced nephropathy (CIN) by activating NLRP3 inflammasome. The activation of dynamin-related protein-1 (Drp1) can trigger mitochondrial dynamic disorders by regulating excessive mitochondrial fission. However, the precise role of Drp1 during CIN has not been clarified. In vivo experiments revealed that inhibiting Drp1 through Mdivi-1 (one selective inhibitor of Drp1) can significantly decrease the expression of p-Drp1 (Ser616), mitochondrial p-Drp1 (Ser616), mitochondrial Bax, mitochondrial reactive oxygen species (mROS), NLRP3, caspase-1, ASC, TNF-α, IL-1β, interleukin (IL)-18, IL-6, creatinine (Cr), malondialdehyde (MDA), blood urea nitrogen (BUN), and KIM-1. Moreover, Mdivi-1 reduced kidney pathological injury and downregulated the interaction between NLRP3 and thioredoxin-interacting protein (TXNIP), which was accompanied by decreased interactions between TRX and TXNIP. This resulted in increasing superoxide dismutase (SOD) and CAT activity, TRX expression, up-regulating mitochondrial membrane potential, and augmenting ATP contents and p-Drp1 (Ser616) levels in the cytoplasm. However, it did not bring impact on the expression of p-Drp1 (Ser637) and TXNIP. Activating Drp-1though Acetaldehyde abrogated the effects of Mdivi-1. In addition, the results of in vitro studies employing siRNA-Drp1 and plasmid-Drp1 intervention in HK-2 cells treated with iohexol were consistent with the in vivo experiments. Our findings revealed inhibiting Drp1 phosphorylation at Ser616 could ameliorate iohexol -induced acute kidney injury though alleviating the activation of the TXNIP-NLRP3 inflammasome pathway.
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Affiliation(s)
- Jiong Zhang
- Division of Nephrology, Sichuan Provincial People's Hospital& Sichuan Academy of Sciences, University of Electronic Science and Technology, China
| | - Qian Wei
- Division of Nephrology, Sichuan Provincial People's Hospital& Sichuan Academy of Sciences, University of Electronic Science and Technology, China
| | - Shu-Kun Wu
- Division of Nephrology, Sichuan Provincial People's Hospital& Sichuan Academy of Sciences, University of Electronic Science and Technology, China
| | - Fang Wang
- Division of Nephrology, Sichuan Provincial People's Hospital& Sichuan Academy of Sciences, University of Electronic Science and Technology, China
| | - Tong-Ling Yuan
- General Practice Center, Sichuan Academy of Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, 610072, China.
| | - Jia Wang
- General Practice Center, Sichuan Academy of Sciences & Sichuan Provincial People's Hospital, University of Electronic Science and Technology, Chengdu, 610072, China.
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117
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Gu X, Chen Y, Cao K, Tu M, Liu W, Ju J. Therapeutic landscape in systemic lupus erythematosus: mtDNA activation of the cGAS-STING pathway. Int Immunopharmacol 2024; 133:112114. [PMID: 38652968 DOI: 10.1016/j.intimp.2024.112114] [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: 01/02/2024] [Revised: 04/16/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
Mitochondrial DNA (mtDNA) serves as a pivotal immune stimulus in the immune response. During stress, mitochondria release mtDNA into the cytoplasm, where it is recognized by the cytoplasmic DNA receptor cGAS. This activation initiates the cGAS-STING-IRF3 pathway, culminating in an inflammatory response. The cGAS-STING pathway has emerged as a critical mediator of inflammatory responses in microbial infections, stress, autoimmune diseases, chronic illnesses, and tissue injuries. Systemic lupus erythematosus (SLE) is a chronic autoimmune disease characterized by connective tissue involvement across various bodily systems. Its hallmark is the production of numerous autoantibodies, which prompt the immune system to target and damage the body's own tissues, resulting in organ and tissue damage. Increasing evidence implicates the cGAS-STING pathway as a significant contributor to SLE pathogenesis. This article aims to explore the role of the mtDNA-triggered cGAS-STING pathway and its mechanisms in SLE, with the goal of providing novel insights for clinical interventions.
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Affiliation(s)
- Xiaotian Gu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Yong Chen
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Kunyu Cao
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Miao Tu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China
| | - Wan Liu
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
| | - Jiyu Ju
- School of Basic Medical Sciences, Shandong Second Medical University, Weifang 261053, China.
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118
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Liu BH, Xu CZ, Liu Y, Lu ZL, Fu TL, Li GR, Deng Y, Luo GQ, Ding S, Li N, Geng Q. Mitochondrial quality control in human health and disease. Mil Med Res 2024; 11:32. [PMID: 38812059 PMCID: PMC11134732 DOI: 10.1186/s40779-024-00536-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 05/07/2024] [Indexed: 05/31/2024] Open
Abstract
Mitochondria, the most crucial energy-generating organelles in eukaryotic cells, play a pivotal role in regulating energy metabolism. However, their significance extends beyond this, as they are also indispensable in vital life processes such as cell proliferation, differentiation, immune responses, and redox balance. In response to various physiological signals or external stimuli, a sophisticated mitochondrial quality control (MQC) mechanism has evolved, encompassing key processes like mitochondrial biogenesis, mitochondrial dynamics, and mitophagy, which have garnered increasing attention from researchers to unveil their specific molecular mechanisms. In this review, we present a comprehensive summary of the primary mechanisms and functions of key regulators involved in major components of MQC. Furthermore, the critical physiological functions regulated by MQC and its diverse roles in the progression of various systemic diseases have been described in detail. We also discuss agonists or antagonists targeting MQC, aiming to explore potential therapeutic and research prospects by enhancing MQC to stabilize mitochondrial function.
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Affiliation(s)
- Bo-Hao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen-Zhen Xu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zi-Long Lu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ting-Lv Fu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Rui Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu Deng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Qing Luo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Song Ding
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Song Y, Ren S, Chen X, Li X, Chen L, Zhao S, Zhang Y, Shen X, Chen Y. Inhibition of MFN1 restores tamoxifen-induced apoptosis in resistant cells by disrupting aberrant mitochondrial fusion dynamics. Cancer Lett 2024; 590:216847. [PMID: 38583647 DOI: 10.1016/j.canlet.2024.216847] [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: 12/10/2023] [Revised: 03/18/2024] [Accepted: 03/31/2024] [Indexed: 04/09/2024]
Abstract
Tamoxifen (TAM) resistance presents a major clinical obstacle in the management of estrogen-sensitive breast cancer, highlighting the need to understand the underlying mechanisms and potential therapeutic approaches. We showed that dysregulated mitochondrial dynamics were involved in TAM resistance by protecting against mitochondrial apoptosis. The dysregulated mitochondrial dynamics were associated with increased mitochondrial fusion and decreased fission, thus preventing the release of mitochondrial cytochrome c to the cytoplasm following TAM treatment. Dynamin-related GTPase protein mitofusin 1 (MFN1), which promotes fusion, was upregulated in TAM-resistant cells, and high MFN1 expression indicated a poor prognosis in TAM-treated patients. Mitochondrial translocation of MFN1 and interaction between MFN1 and mitofusin 2 (MFN2) were enhanced to promote mitochondrial outer membrane fusion. The interaction of MFN1 and cristae-shaping protein optic atrophy 1 (OPA1) and OPA1 oligomerization were reduced due to augmented OPA1 proteolytic cleavage, and their apoptosis-promoting function was reduced due to cristae remodeling. Furthermore, the interaction of MFN1 and BAK were increased, which restrained BAK activation following TAM treatment. Knockdown or pharmacological inhibition of MFN1 blocked mitochondrial fusion, restored BAK oligomerization and cytochrome c release, and amplified activation of caspase-3/9, thus sensitizing resistant cells to apoptosis and facilitating the therapeutic effects of TAM both in vivo and in vitro. Conversely, overexpression of MFN1 alleviated TAM-induced mitochondrial apoptosis and promoted TAM resistance in sensitive cells. These results revealed that dysregulated mitochondrial dynamics contributes to the development of TAM resistance, suggesting that targeting MFN1-mediated mitochondrial fusion is a promising strategy to circumvent TAM resistance.
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Affiliation(s)
- Yuxuan Song
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; Key Laboratory of Novel Anti-Cancer Drug Targets Discovery and Application, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Shuang Ren
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; Key Laboratory of Novel Anti-Cancer Drug Targets Discovery and Application, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Xingmei Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; Key Laboratory of Novel Anti-Cancer Drug Targets Discovery and Application, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Xuhong Li
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Lin Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Shijie Zhao
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China
| | - Yue Zhang
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China.
| | - Xiangchun Shen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China.
| | - Yan Chen
- The State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The High Efficacy Application of Natural Medicinal Resources Engineering Center of Guizhou Province, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; The Key Laboratory of Optimal Utilization of Natural Medicine Resources, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China; Key Laboratory of Novel Anti-Cancer Drug Targets Discovery and Application, School of Pharmaceutical Sciences, Guizhou Medical University, No.6 Ankang Avenue, Guian New District, Guizhou 561113, China.
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Zuccaro KE, Abriata LA, Pinto Meireles FT, Moss FR, Frost A, Dal Peraro M, Aydin H. Cardiolipin clustering promotes mitochondrial membrane dynamics. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.21.595226. [PMID: 38826344 PMCID: PMC11142133 DOI: 10.1101/2024.05.21.595226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2024]
Abstract
Cardiolipin (CL) is a mitochondria-specific phospholipid that forms heterotypic interactions with membrane-shaping proteins and regulates the dynamic remodeling and function of mitochondria. However, the precise mechanisms through which CL influences mitochondrial morphology are not well understood. In this study, employing molecular dynamics (MD) simulations, we observed CL localize near the membrane-binding sites of the mitochondrial fusion protein Optic Atrophy 1 (OPA1). To validate these findings experimentally, we developed a bromine-labeled CL probe to enhance cryoEM contrast and characterize the structure of OPA1 assemblies bound to the CL-brominated lipid bilayers. Our images provide direct evidence of interactions between CL and two conserved motifs within the paddle domain (PD) of OPA1, which control membrane-shaping mechanisms. We further observed a decrease in membrane remodeling activity for OPA1 in lipid compositions with increasing concentrations of monolyso-cardiolipin (MLCL). Suggesting that the partial replacement of CL by MLCL accumulation, as observed in Barth syndrome-associated mutations of the tafazzin phospholipid transacylase, compromises the stability of protein-membrane interactions. Our analyses provide insights into how biological membranes regulate the mechanisms governing mitochondrial homeostasis.
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Affiliation(s)
- Kelly E. Zuccaro
- Department of Biochemistry, University of Colorado Boulder, Boulder, Colorado, USA
| | - Luciano A. Abriata
- Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Protein Production and Structure Core Facility, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Swiss Institute of Bioinformatics, CH-1015 Lausanne, Switzerland
| | - Fernando Teixeira Pinto Meireles
- Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Swiss Institute of Bioinformatics, CH-1015 Lausanne, Switzerland
| | - Frank R. Moss
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
| | - Adam Frost
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA, USA
- Chan Zuckerberg Biohub, San Francisco, CA, USA
- Altos Labs, Bay Area Institute of Science, San Francisco, CA, USA
- Quantitative Biosciences Institute, University of California, San Francisco, San Francisco, CA, USA
| | - Matteo Dal Peraro
- Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
- Swiss Institute of Bioinformatics, CH-1015 Lausanne, Switzerland
| | - Halil Aydin
- Department of Biochemistry, University of Colorado Boulder, Boulder, Colorado, USA
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Branco A, Rayabaram J, Miranda CC, Fernandes-Platzgummer A, Fernandes TG, Sajja S, da Silva CL, Vemuri MC. Advances in ex vivo expansion of hematopoietic stem and progenitor cells for clinical applications. Front Bioeng Biotechnol 2024; 12:1380950. [PMID: 38846805 PMCID: PMC11153805 DOI: 10.3389/fbioe.2024.1380950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/25/2024] [Indexed: 06/09/2024] Open
Abstract
As caretakers of the hematopoietic system, hematopoietic stem cells assure a lifelong supply of differentiated populations that are responsible for critical bodily functions, including oxygen transport, immunological protection and coagulation. Due to the far-reaching influence of the hematopoietic system, hematological disorders typically have a significant impact on the lives of individuals, even becoming fatal. Hematopoietic cell transplantation was the first effective therapeutic avenue to treat such hematological diseases. Since then, key use and manipulation of hematopoietic stem cells for treatments has been aspired to fully take advantage of such an important cell population. Limited knowledge on hematopoietic stem cell behavior has motivated in-depth research into their biology. Efforts were able to uncover their native environment and characteristics during development and adult stages. Several signaling pathways at a cellular level have been mapped, providing insight into their machinery. Important dynamics of hematopoietic stem cell maintenance were begun to be understood with improved comprehension of their metabolism and progressive aging. These advances have provided a solid platform for the development of innovative strategies for the manipulation of hematopoietic stem cells. Specifically, expansion of the hematopoietic stem cell pool has triggered immense interest, gaining momentum. A wide range of approaches have sprouted, leading to a variety of expansion systems, from simpler small molecule-based strategies to complex biomimetic scaffolds. The recent approval of Omisirge, the first expanded hematopoietic stem and progenitor cell product, whose expansion platform is one of the earliest, is predictive of further successes that might arise soon. In order to guarantee the quality of these ex vivo manipulated cells, robust assays that measure cell function or potency need to be developed. Whether targeting hematopoietic engraftment, immunological differentiation potential or malignancy clearance, hematopoietic stem cells and their derivatives need efficient scaling of their therapeutic potency. In this review, we comprehensively view hematopoietic stem cells as therapeutic assets, going from fundamental to translational.
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Affiliation(s)
- André Branco
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Janakiram Rayabaram
- Protein and Cell Analysis, Biosciences Division, Invitrogen Bioservices, Thermo Fisher Scientific, Bangalore, India
| | - Cláudia C. Miranda
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- AccelBio, Collaborative Laboratory to Foster Translation and Drug Discovery, Cantanhede, Portugal
| | - Ana Fernandes-Platzgummer
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Tiago G. Fernandes
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Suchitra Sajja
- Protein and Cell Analysis, Biosciences Division, Invitrogen Bioservices, Thermo Fisher Scientific, Bangalore, India
| | - Cláudia L. da Silva
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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Liu C, Quan X, Tian X, Zhao Y, Li HF, Mak JCW, Wang Z, Mao S, Zheng Y. Inhaled Macrophage Apoptotic Bodies-Engineered Microparticle Enabling Construction of Pro-Regenerative Microenvironment to Fight Hypoxic Lung Injury in Mice. ACS NANO 2024; 18:13361-13376. [PMID: 38728619 PMCID: PMC11112977 DOI: 10.1021/acsnano.4c03421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/22/2024] [Accepted: 05/01/2024] [Indexed: 05/12/2024]
Abstract
Oxygen therapy cannot rescue local lung hypoxia in patients with severe respiratory failure. Here, an inhalable platform is reported for overcoming the aberrant hypoxia-induced immune changes and alveolar damage using camouflaged poly(lactic-co-glycolic) acid (PLGA) microparticles with macrophage apoptotic body membrane (cMAB). cMABs are preloaded with mitochondria-targeting superoxide dismutase/catalase nanocomplexes (NCs) and modified with pathology-responsive macrophage growth factor colony-stimulating factor (CSF) chains, which form a core-shell platform called C-cMAB/NC with efficient deposition in deeper alveoli and high affinity to alveolar epithelial cells (AECs) after CSF chains are cleaved by matrix metalloproteinase 9. Therefore, NCs can be effectively transported into mitochondria to inhibit inflammasome-mediated AECs damage in mouse models of hypoxic acute lung injury. Additionally, the at-site CSF release is sufficient to rescue circulating monocytes and macrophages and alter their phenotypes, maximizing synergetic effects of NCs on creating a pro-regenerative microenvironment that enables resolution of lung injury and inflammation. This inhalable platform may have applications to numerous inflammatory lung diseases.
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Affiliation(s)
- Chang Liu
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macau999078, China
| | - Xingping Quan
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macau999078, China
| | - Xidong Tian
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macau999078, China
| | - Yonghua Zhao
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macau999078, China
- Department
of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macau999078, China
| | - Hai-Feng Li
- Joint
Key Laboratory of the Ministry of Education, Institute of Applied
Physics and Materials Engineering, University
of Macau, Macau999078, China
| | - Judith Choi Wo Mak
- Department
of Pharmacology and Pharmacy, LKS Faculty of Medicine, The University of Hong Kong, 999077, Hong Kong,
China
| | - Zhenping Wang
- Department
of Dermatology, School of Medicine, University
of California, San Diego, California92093, United States
| | - Shirui Mao
- School of
Pharmacy, Shenyang Pharmaceutical University, Shenyang110016, China
- Joint
International Research Laboratory of Intelligent Drug Delivery Systems, Ministry of Education, Shenyang 110016, China
| | - Ying Zheng
- State
Key Laboratory of Quality Research in Chinese Medicine, Institute
of Chinese Medical Sciences, University
of Macau, Macau999078, China
- Department
of Pharmaceutical Sciences, Faculty of Health Sciences, University of Macau, Macau999078, China
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龚 雪, 黄 金, 黄 志. [Research Progress in the Role of Mitochondrial Dysfunction in Endometriosis-Associated Infertility]. SICHUAN DA XUE XUE BAO. YI XUE BAN = JOURNAL OF SICHUAN UNIVERSITY. MEDICAL SCIENCE EDITION 2024; 55:521-526. [PMID: 38948278 PMCID: PMC11211786 DOI: 10.12182/20240560404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Indexed: 07/02/2024]
Abstract
Endometriosis (EMT), a common benign gynecological disease, is a leading cause of infertility in women. EMT affects female fertility in various aspects. However, the underlying mechanisms have not been fully elucidated. Mitochondria are known as the "powerhouse" of a cell. They play pivotal roles in the physiological processes of cellular energy metabolism, calcium homeostasis, oxidative stress, autophagy, the regulation of cell cycle, and cell death, and are involved in the pathophysiology of many diseases. Cellular mitochondria are highly dynamic, continuously undergoing cyclic fission and fusion to meet the demands of cellular activities. Balanced mitochondrial dynamics are critical for maintaining normal reproductive function in women. In addition, mitochondria are the major source of reactive oxygen species (ROS). Cell damage, cell death, and fibrosis mediated by the imbalance in the oxidative-antioxidant system in EMT patients lead to decreased oocyte quality and ovarian reserve. Currently, the treatment of EMT-associated infertility remains a challenging and controversial topic. We herein reviewed the latest findings on the role of mitochondrial dysfunction in EMT-associated infertility and the potential therapeutic targets.
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Affiliation(s)
- 雪 龚
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - 金 黄
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
| | - 志超 黄
- 香港中文大学医学院 妇产科学系 (香港 999077)Department of Obstetrics and Gynaecology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR 999077, China
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Pasqualotto BA, Nelson A, Deheshi S, Sheldon CA, Vogl AW, Rintoul GL. Impaired mitochondrial morphological plasticity and failure of mitophagy associated with the G11778A mutation of LHON. Biochem Biophys Res Commun 2024; 721:150119. [PMID: 38768545 DOI: 10.1016/j.bbrc.2024.150119] [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: 03/04/2024] [Revised: 05/07/2024] [Accepted: 05/13/2024] [Indexed: 05/22/2024]
Abstract
Mitochondrial dynamics were examined in human dermal fibroblasts biopsied from a confirmed Leber's Hereditary Optic Neuropathy (LHON) patient with a homoplasmic G11778A mutation of the mitochondrial genome. Expression of the G11778A mutation did not impart any discernible difference in mitochondrial network morphology using widefield fluorescence microscopy. However, at the ultrastructural level, cells expressing this mutation exhibited an impairment of mitochondrial morphological plasticity when forced to utilize oxidative phosphorylation (OXPHOS) by transition to glucose-free, galactose-containing media. LHON fibroblasts also displayed a transient increase in mitophagy upon transition to galactose media. These results provide new insights into the consequences of the G11778A mutation of LHON and the pathological mechanisms underlying this disease.
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Affiliation(s)
- Bryce A Pasqualotto
- Centre for Cell Biology, Development, and Disease, and the Department of Biological Sciences, Simon Fraser University, Canada
| | - Alexa Nelson
- Centre for Cell Biology, Development, and Disease, and the Department of Biological Sciences, Simon Fraser University, Canada
| | - Samineh Deheshi
- Centre for Cell Biology, Development, and Disease, and the Department of Biological Sciences, Simon Fraser University, Canada
| | - Claire A Sheldon
- Department of Ophthalmology and Visual Sciences, University of British Columbia, Canada
| | - A Wayne Vogl
- Life Sciences Institute and the Department of Cellular & Physiological Sciences, University of British Columbia, Canada
| | - Gordon L Rintoul
- Centre for Cell Biology, Development, and Disease, and the Department of Biological Sciences, Simon Fraser University, Canada.
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Lee C, Park M, Wijesinghe WCB, Na S, Lee CG, Hwang E, Yoon G, Lee JK, Roh DH, Kwon YH, Yang J, Hughes SA, Vince JE, Seo JK, Min D, Kwon TH. Oxidative photocatalysis on membranes triggers non-canonical pyroptosis. Nat Commun 2024; 15:4025. [PMID: 38740804 DOI: 10.1038/s41467-024-47634-5] [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: 06/29/2023] [Accepted: 04/08/2024] [Indexed: 05/16/2024] Open
Abstract
Intracellular membranes composing organelles of eukaryotes include membrane proteins playing crucial roles in physiological functions. However, a comprehensive understanding of the cellular responses triggered by intracellular membrane-focused oxidative stress remains elusive. Herein, we report an amphiphilic photocatalyst localised in intracellular membranes to damage membrane proteins oxidatively, resulting in non-canonical pyroptosis. Our developed photocatalysis generates hydroxyl radicals and hydrogen peroxides via water oxidation, which is accelerated under hypoxia. Single-molecule magnetic tweezers reveal that photocatalysis-induced oxidation markedly destabilised membrane protein folding. In cell environment, label-free quantification reveals that oxidative damage occurs primarily in membrane proteins related to protein quality control, thereby aggravating mitochondrial and endoplasmic reticulum stress and inducing lytic cell death. Notably, the photocatalysis activates non-canonical inflammasome caspases, resulting in gasdermin D cleavage to its pore-forming fragment and subsequent pyroptosis. These findings suggest that the oxidation of intracellular membrane proteins triggers non-canonical pyroptosis.
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Affiliation(s)
- Chaiheon Lee
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
- Research Center, O2MEDi inc., Ulsan, Republic of Korea
| | - Mingyu Park
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
| | - W C Bhashini Wijesinghe
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Seungjin Na
- Research Center for Bioconvergence Analysis, Korea Basic Science Institute, Cheongju, Republic of Korea
| | - Chae Gyu Lee
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
| | - Eunhye Hwang
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
- Research Center, O2MEDi inc., Ulsan, Republic of Korea
| | - Gwangsu Yoon
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
| | - Jeong Kyeong Lee
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
| | - Deok-Ho Roh
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea
| | - Yoon Hee Kwon
- Research Center, O2MEDi inc., Ulsan, Republic of Korea
| | - Jihyeon Yang
- Research Center, O2MEDi inc., Ulsan, Republic of Korea
| | - Sebastian A Hughes
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - James E Vince
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
- Department of Medical Biology, University of Melbourne, Parkville, VIC, Australia
| | - Jeong Kon Seo
- Research Center, O2MEDi inc., Ulsan, Republic of Korea.
- UNIST Central Research Facility, UNIST, Ulsan, Republic of Korea.
| | - Duyoung Min
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea.
| | - Tae-Hyuk Kwon
- Department of Chemistry, School of Natural Science, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea.
- X-Dynamic Research Center, UNIST, Ulsan, Republic of Korea.
- Research Center, O2MEDi inc., Ulsan, Republic of Korea.
- Graduate School of Carbon Neutrality, UNIST, Ulsan, Republic of Korea.
- Graduate School of Semiconductor Materials and Device Engineering, UNIST, Ulsan, Republic of Korea.
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Duan Y, Yao RQ, Ling H, Zheng LY, Fan Q, Li Q, Wang L, Zhou QY, Wu LM, Dai XG, Yao YM. Organellophagy regulates cell death:A potential therapeutic target for inflammatory diseases. J Adv Res 2024:S2090-1232(24)00203-0. [PMID: 38740259 DOI: 10.1016/j.jare.2024.05.012] [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: 03/11/2024] [Revised: 05/08/2024] [Accepted: 05/09/2024] [Indexed: 05/16/2024] Open
Abstract
BACKGROUND Dysregulated alterations in organelle structure and function have a significant connection with cell death, as well as the occurrence and development of inflammatory diseases. Maintaining cell viability and inhibiting the release of inflammatory cytokines are essential measures to treat inflammatory diseases. Recently, many studies have showed that autophagy selectively targets dysfunctional organelles, thereby sustaining the functional stability of organelles, alleviating the release of multiple cytokines, and maintaining organismal homeostasis. Organellophagy dysfunction is critically engaged in different kinds of cell death and inflammatory diseases. AIM OF REVIEW We summarized the current knowledge of organellophagy (e.g., mitophagy, reticulophagy, golgiphagy, lysophagy, pexophagy, nucleophagy, and ribophagy) and the underlying mechanisms by which organellophagy regulates cell death. KEY SCIENTIFIC CONCEPTS OF REVIEW We outlined the potential role of organellophagy in the modulation of cell fate during the inflammatory response to develop an intervention strategy for the organelle quality control in inflammatory diseases.
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Affiliation(s)
- Yu Duan
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou 423000, China; Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - Ren-Qi Yao
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China; Department of General Surgery, the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China.
| | - Hua Ling
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou 423000, China
| | - Li-Yu Zheng
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - Qi Fan
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - Qiong Li
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou 423000, China
| | - Lu Wang
- Department of Critical Care Medicine, the First Medical Center of the Chinese PLA General Hospital, Beijing 100853, China
| | - Qi-Yuan Zhou
- Department of Emergency, the Second Hospital of Hebei Medical University, Shijiazhuang 050000, China
| | - Le-Min Wu
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou 423000, China
| | - Xin-Gui Dai
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou 423000, China.
| | - Yong-Ming Yao
- Translational Medicine Research Center, Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital, Beijing 100853, China.
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Chen Y, Li S, Guan B, Yan X, Huang C, Du Y, Yang F, Zhang N, Li Y, Lu J, Wang J, Zhang J, Chen Z, Chen C, Kong X. MAP4K4 exacerbates cardiac microvascular injury in diabetes by facilitating S-nitrosylation modification of Drp1. Cardiovasc Diabetol 2024; 23:164. [PMID: 38724987 PMCID: PMC11084109 DOI: 10.1186/s12933-024-02254-7] [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: 12/30/2023] [Accepted: 04/29/2024] [Indexed: 05/12/2024] Open
Abstract
Dynamin-related protein 1 (Drp1) is a crucial regulator of mitochondrial dynamics, the overactivation of which can lead to cardiovascular disease. Multiple distinct posttranscriptional modifications of Drp1 have been reported, among which S-nitrosylation was recently introduced. However, the detailed regulatory mechanism of S-nitrosylation of Drp1 (SNO-Drp1) in cardiac microvascular dysfunction in diabetes remains elusive. The present study revealed that mitogen-activated protein kinase kinase kinase kinase 4 (MAP4K4) was consistently upregulated in diabetic cardiomyopathy (DCM) and promoted SNO-Drp1 in cardiac microvascular endothelial cells (CMECs), which in turn led to mitochondrial dysfunction and cardiac microvascular disorder. Further studies confirmed that MAP4K4 promoted SNO-Drp1 at human C644 (mouse C650) by inhibiting glutathione peroxidase 4 (GPX4) expression, through which MAP4K4 stimulated endothelial ferroptosis in diabetes. In contrast, inhibition of MAP4K4 via DMX-5804 significantly reduced endothelial ferroptosis, alleviated cardiac microvascular dysfunction and improved cardiac dysfunction in db/db mice by reducing SNO-Drp1. In parallel, the C650A mutation in mice abolished SNO-Drp1 and the role of Drp1 in promoting cardiac microvascular disorder and cardiac dysfunction. In conclusion, our findings demonstrate that MAP4K4 plays an important role in endothelial dysfunction in DCM and reveal that SNO-Drp1 and ferroptosis activation may act as downstream targets, representing potential therapeutic targets for DCM.
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Affiliation(s)
- Yuqiong Chen
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China.
| | - Su Li
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, 200032, Shanghai, China
| | - Bo Guan
- Department of Geriatrics, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, Suzhou, China
| | - Xiaopei Yan
- Department of Respiratory Medicine, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, Suzhou, China
| | - Chao Huang
- Ministry of Science and Technology, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, 215002, Suzhou, Jiangsu, China
| | - Yingqiang Du
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China
| | - Fan Yang
- Department of Endocrinology, Endocrine and Metabolic Disease Medical Center, Affiliated Hospital of Medical School, Nanjing Drum Tower Hospital, Nanjing University, 210008, Nanjing, China
- Branch of National Clinical Research Center for Metabolic Diseases, 210008, Nanjing, China
| | - Nannan Zhang
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China
| | - Yafei Li
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China
| | - Jian Lu
- Department of Critical Care Medicine, the Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou, China
| | - Jiankang Wang
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China
| | - Jun Zhang
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China
| | - Zhangwei Chen
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, 180 Fenglin Road, 200032, Shanghai, China.
| | - Chao Chen
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China.
| | - Xiangqing Kong
- Department of Cardiology, Gusu School, The Affiliated Suzhou Hospital of Nanjing Medical University, Suzhou Municipal Hospital, Nanjing Medical University, 215000, Suzhou, Jiangsu Province, China.
- Department of Cardiology, Gulou District, the First Affiliated Hospital of Nanjing Medical University, 300 Guangzhou Road, Nanjing City, Jiangsu Province, China.
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Xiao T, English AM, Wilson ZN, Maschek J, Cox JE, Hughes AL. The phospholipids cardiolipin and phosphatidylethanolamine differentially regulate MDC biogenesis. J Cell Biol 2024; 223:e202302069. [PMID: 38497895 PMCID: PMC10949074 DOI: 10.1083/jcb.202302069] [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: 02/16/2023] [Revised: 01/04/2024] [Accepted: 02/20/2024] [Indexed: 03/19/2024] Open
Abstract
Cells utilize multiple mechanisms to maintain mitochondrial homeostasis. We recently characterized a pathway that remodels mitochondria in response to metabolic alterations and protein overload stress. This remodeling occurs via the formation of large membranous structures from the mitochondrial outer membrane called mitochondrial-derived compartments (MDCs), which are eventually released from mitochondria and degraded. Here, we conducted a microscopy-based screen in budding yeast to identify factors that regulate MDC formation. We found that two phospholipids, cardiolipin (CL) and phosphatidylethanolamine (PE), differentially regulate MDC biogenesis. CL depletion impairs MDC biogenesis, whereas blocking mitochondrial PE production leads to constitutive MDC formation. Additionally, in response to metabolic MDC activators, cellular and mitochondrial PE declines, and overexpressing mitochondrial PE synthesis enzymes suppress MDC biogenesis. Altogether, our data indicate a requirement for CL in MDC biogenesis and suggest that PE depletion may stimulate MDC formation downstream of MDC-inducing metabolic stress.
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Affiliation(s)
- Tianyao Xiao
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Alyssa M. English
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - Zachary N. Wilson
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
| | - J.Alan. Maschek
- Metabolomics Core Research Facility, University of Utah, Salt Lake City, UT, USA
- Department of Nutrition and Integration. Physiology, University of Utah College of Health, Salt Lake City, UT, USA
| | - James E. Cox
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
- Metabolomics Core Research Facility, University of Utah, Salt Lake City, UT, USA
| | - Adam L. Hughes
- Department of Biochemistry, University of Utah School of Medicine, Salt Lake City, UT, USA
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129
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Long X, Liu M, Nan Y, Chen Q, Xiao Z, Xiang Y, Ying X, Sun J, Huang Q, Ai K. Revitalizing Ancient Mitochondria with Nano-Strategies: Mitochondria-Remedying Nanodrugs Concentrate on Disease Control. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024; 36:e2308239. [PMID: 38224339 DOI: 10.1002/adma.202308239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 01/04/2024] [Indexed: 01/16/2024]
Abstract
Mitochondria, widely known as the energy factories of eukaryotic cells, have a myriad of vital functions across diverse cellular processes. Dysfunctions within mitochondria serve as catalysts for various diseases, prompting widespread cellular demise. Mounting research on remedying damaged mitochondria indicates that mitochondria constitute a valuable target for therapeutic intervention against diseases. But the less clinical practice and lower recovery rate imply the limitation of traditional drugs, which need a further breakthrough. Nanotechnology has approached favorable regiospecific biodistribution and high efficacy by capitalizing on excellent nanomaterials and targeting drug delivery. Mitochondria-remedying nanodrugs have achieved ideal therapeutic effects. This review elucidates the significance of mitochondria in various cells and organs, while also compiling mortality data for related diseases. Correspondingly, nanodrug-mediate therapeutic strategies and applicable mitochondria-remedying nanodrugs in disease are detailed, with a full understanding of the roles of mitochondria dysfunction and the advantages of nanodrugs. In addition, the future challenges and directions are widely discussed. In conclusion, this review provides comprehensive insights into the design and development of mitochondria-remedying nanodrugs, aiming to help scientists who desire to extend their research fields and engage in this interdisciplinary subject.
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Affiliation(s)
- Xingyu Long
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
| | - Min Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Yayun Nan
- Geriatric Medical Center, People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, Ningxia, 750002, P. R. China
| | - Qiaohui Chen
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
| | - Zuoxiu Xiao
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
| | - Yuting Xiang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
| | - Xiaohong Ying
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
| | - Jian Sun
- College of Pharmacy, Xinjiang Medical University, Urumqi, 830017, P. R. China
| | - Qiong Huang
- Department of Pharmacy, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
- National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, P. R. China
| | - Kelong Ai
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan, 410078, P. R. China
- Hunan Provincial Key Laboratory of Cardiovascular Research, Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, 410078, P. R. China
- Key Laboratory of Aging-related Bone and Joint Diseases Prevention and Treatment, Ministry of Education, Xiangya Hospital, Central South University, Changsha, 410078, P. R. China
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130
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Addinsall AB, Cacciani N, Moruzzi N, Akkad H, Maestri A, Berggren PO, Widegren A, Bergquist J, Tchkonia T, Kirkland JL, Larsson L. Ruxolitinib: A new hope for ventilator-induced diaphragm dysfunction. Acta Physiol (Oxf) 2024; 240:e14128. [PMID: 38551103 DOI: 10.1111/apha.14128] [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: 11/02/2023] [Revised: 02/21/2024] [Accepted: 02/27/2024] [Indexed: 04/24/2024]
Abstract
AIM Mechanical ventilation (MV) results in diminished diaphragm size and strength, termed ventilator-induced diaphragm dysfunction (VIDD). VID increases dependence, prolongs weaning, and increases discharge mortality rates. The Janus kinase (JAK)/Signal Transducer and Activator of Transcription (STAT) pathway is implicated in VIDD, upregulated following MV. JAK/STAT inhibition alleviates chronic muscle wasting conditions. This study aimed to explore the therapeutic potential of Ruxolitinib, an FDA approved JAK1/2 inhibitor (JI) for the treatment of VIDD. METHODS Rats were subjected to 5 days controlled MV (CMV) with and without daily Ruxolitinib gavage. Muscle fiber size and function were assessed. RNAseq, mitochondrial morphology, respirometry, and mass spectrometry were determined. RESULTS CMV significantly reduced diaphragm size and specific force by 45% (p < 0.01), associated with a two-fold P-STAT3 upregulation (p < 0.001). CMV disrupted mitochondrial content and reduced the oxygen consumption rate (p < 0.01). Expression of the motor protein myosin was unaffected, however CMV alters myosin function via post-translational modifications (PTMs). Daily administration of JI increased animal survival (40% vs. 87%; p < 0.05), restricted P-STAT3 (p < 0.001), and preserved diaphragm size and specific force. JI was associated with preserved mitochondrial content and respiratory function (p < 0.01), and the reversal or augmentation of myosin deamidation PTMs of the rod and head region. CONCLUSION JI preserved diaphragm function, leading to increased survival in an experimental model of VIDD. Functional enhancement was associated with maintenance of mitochondrial content and respiration and the reversal of ventilator-induced PTMs of myosin. These results demonstrate the potential of repurposing Ruxolitinib for treatment of VIDD.
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Affiliation(s)
- Alex B Addinsall
- Basic and Clinical Muscle Biology, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Nicola Cacciani
- Basic and Clinical Muscle Biology, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
| | - Noah Moruzzi
- Department of Molecular Medicine and Surgery, The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institute, Stockholm, Sweden
| | - Hazem Akkad
- Basic and Clinical Muscle Biology, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
| | - Alice Maestri
- Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
- Division of Cardiovascular Medicine, Department of Medicine, Solna, Karolinska Institute, Sweden
| | - Per-Olof Berggren
- Department of Molecular Medicine and Surgery, The Rolf Luft Research Center for Diabetes and Endocrinology, Karolinska Institute, Stockholm, Sweden
| | - Anna Widegren
- Department of Chemistry-BMC, Analytical Chemistry and Neurochemistry, Uppsala University, Uppsala, Sweden
| | - Jonas Bergquist
- Department of Chemistry-BMC, Analytical Chemistry and Neurochemistry, Uppsala University, Uppsala, Sweden
| | - Tamara Tchkonia
- Muscle Biology Program, Viron Molecular Medicine Institute, Boston, Massachusetts, USA
| | - James L Kirkland
- Department of Physiology and Biomedical Engineering, Mayo Clinic, Rochester, Minnesota, USA
- Division of General Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Lars Larsson
- Basic and Clinical Muscle Biology, Department of Physiology and Pharmacology, Karolinska Institute, Stockholm, Sweden
- Center for Molecular Medicine, Karolinska Institute, Stockholm, Sweden
- Muscle Biology Program, Viron Molecular Medicine Institute, Boston, Massachusetts, USA
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131
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Hu Y, Tian C, Chen F, Zhang A, Wang W. The mystery of methylmercury-perturbed calcium homeostasis: AMPK-DRP1-dependent mitochondrial fission initiates ER-mitochondria contact formation. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171398. [PMID: 38442753 DOI: 10.1016/j.scitotenv.2024.171398] [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: 02/17/2024] [Accepted: 02/28/2024] [Indexed: 03/07/2024]
Abstract
Methylmercury (MeHg), as a global environmental pollutant, is of concern globally due to its neurodevelopmental toxicity. Mitochondria-associated membranes (MAMs) are highly dynamic sites of endoplasmic reticulum (ER)-haemocyte contact. MAMs are closely associated with the pathophysiology of neurological disorders due to their role in the transfer of calcium ions (Ca2+) between mitochondria and the ER. However, the molecular mechanisms that control these interactions in MeHg-induced neurotoxicity have not yet been characterized. In the current study, MeHg caused increases in the levels of both cytosolic and mitochondrial Ca2+ in PC12 cells and promoted MAMs formation in both in vivo and in vitro experiments. Of note, MeHg perturbed mitochondrial dynamics, promoting a shift toward a fission phenotype, and this was supported by the dysregulation of fission regulators. Interestingly, the MeHg-induced promotion of MAMs formation and increase in Ca2+ levels were effectively attenuated by the inhibition of mitochondrial fission using Mdivi-1, a DRP1 inhibitor. Furthermore, MeHg triggered the AMPK pathway, and most of the aforementioned changes were significantly rescued by Compound C. Mechanistic investigations revealed a reciprocal relationship between AMPK- and Ca2+-mediated mitochondrial fission. The specific inhibitor of Ca2+ uniporter, ruthenium-red (RuR), effectively abolished the feedback regulation of mitochondrial dynamics and MAMs formation mediated by AMPK in response to MeHg-induced Ca2+ overload. This study reveals a novel role of AMPK-DRP1-mediated mitochondrial fragmentation in the coupling of ER-mitochondrial calcium microdomains in MeHg-induced neurotoxicity. The findings provide valuable insights for the development of strategies to regulate mitochondrial imbalances in neurological diseases.
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Affiliation(s)
- Yi Hu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Changsong Tian
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Fang Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China
| | - Wenjuan Wang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Guizhou Medical University, Guiyang 550025, China; Key Laboratory of Human Brain bank for Functions and Diseases of Department of Education of Guizhou Province, Guizhou Medical University, Guiyang 550025, China.
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132
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Ye B, Chen B, Guo C, Xiong N, Huang Y, Li M, Lai Y, Li J, Zhou M, Wang S, Wang S, Yang N, Zhang H. C5a-C5aR1 axis controls mitochondrial fission to promote podocyte injury in lupus nephritis. Mol Ther 2024; 32:1540-1560. [PMID: 38449312 PMCID: PMC11081871 DOI: 10.1016/j.ymthe.2024.03.003] [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: 10/19/2023] [Revised: 02/05/2024] [Accepted: 03/04/2024] [Indexed: 03/08/2024] Open
Abstract
Podocytes are essential to maintaining the integrity of the glomerular filtration barrier, but they are frequently affected in lupus nephritis (LN). Here, we show that the significant upregulation of Drp1S616 phosphorylation in podocytes promotes mitochondrial fission, leading to mitochondrial dysfunction and podocyte injury in LN. Inhibition or knockdown of Drp1 promotes mitochondrial fusion and protects podocytes from injury induced by LN serum. In vivo, pharmacological inhibition of Drp1 reduces the phosphorylation of Drp1S616 in podocytes in lupus-prone mice. Podocyte injury is reversed when Drp1 is inhibited, resulting in the alleviation of proteinuria. Mechanistically, complement component C5a (C5a) upregulates the phosphorylation of Drp1S616 and promotes mitochondrial fission in podocytes. Moreover, the expression of C5a receptor 1 (C5aR1) is notably upregulated in podocytes in LN. C5a-C5aR1 axis-controlled phosphorylation of Drp1S616 and mitochondrial fission are substantially suppressed when C5aR1 is knocked down by siRNA. Moreover, lupus-prone mice treated with C5aR inhibitor show reduced phosphorylation of Drp1S616 in podocytes, resulting in significantly less podocyte damage. Together, this study uncovers a novel mechanism by which the C5a-C5aR1 axis promotes podocyte injury by enhancing Drp1-mediated mitochondrial fission, which could have significant implications for the treatment of LN.
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Affiliation(s)
- Baokui Ye
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Binfeng Chen
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Chaohuan Guo
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Ningjing Xiong
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yuefang Huang
- Department of Pediatrics, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Mengyuan Li
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Yimei Lai
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Jin Li
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Mianjing Zhou
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Shuang Wang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Shuyi Wang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
| | - Niansheng Yang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
| | - Hui Zhang
- Department of Rheumatology and Clinical Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China; Institute of Precision Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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Zhong G, Qiao B, He Y, Liu H, Hong P, Rao G, Tang L, Tang Z, Hu L. Co-exposure of arsenic and polystyrene-nanoplastics induced kidney injury by disrupting mitochondrial homeostasis and mtROS-mediated ferritinophagy and ferroptosis. PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY 2024; 201:105904. [PMID: 38685226 DOI: 10.1016/j.pestbp.2024.105904] [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: 03/01/2024] [Revised: 04/02/2024] [Accepted: 04/08/2024] [Indexed: 05/02/2024]
Abstract
Arsenic (As) and polystyrene nanoplastics (PSNPs) co-exposure induced biotoxicity and ecological risks have attracted wide attention. However, the combined effects of As and PSNPs on the kidney and their underlying mechanisms of toxicities remain to be explored. Here, we investigated the effects of As and PSNPs co-exposure on structure and function in mice kidney, and further explored the possible mechanisms. In this study, we identified that co-exposure to As and PSNPs exhibited conspicuous renal structural damage and pathological changes, accompanied by renal tissue fibrosis (increased protein expression of Collagen I and α-SMA and deposition of collagen fibers), whereas alone exposure to As or PSNPs does not exhibit nephrotoxicity. Subsequently, our results further showed that combined action of As and PSNPs induced mitochondrial oxidative damage and impaired mitochondrial dynamic balance. Furthermore, co-treatment with As and PSNPs activated NCOA4-mediated ferritinophagy and ferroptosis in mice kidney and TCMK-1 cells, which was confirmed by the changes in the expression of ferritinophagy and ferroptosis related indicators (NCOA4, LC3, ATG5, ATG7, FTH1, FTL, GPX4, SLC7A11, FSP1, ACSL4 and PTGS2). Meaningfully, pretreatment with the mtROS-targeted scavenger Mito-TEMPO significantly attenuated As and PSNPs co-exposure induced mitochondrial damage, ferritinophagy and ferroptosis. In conclusion, these findings demonstrated that mtROS-dependent ferritinophagy and ferroptosis are important factors in As and PSNPs co-exposure induced kidney injury and fibrosis. This study provides a new insight into the study of combined toxicity of nanoplastics and heavy metal pollutants.
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Affiliation(s)
- Gaolong Zhong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China; College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Baoxin Qiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Ying He
- Guangxi Key Laboratory of Veterinary Biotechnology, Guangxi Veterinary Research Institute, Nanning 530001, China; Guangxi Key Laboratory of Veterinary Biotechnology, Nanning, Guangxi, China; Key Laboratory of China(Guangxi)-ASEAN Cross-border Animal Disease Prevention and Control, Ministry of Agriculture and Rural Affairs of China, Nanning, China
| | - Haiyan Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Panjing Hong
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Gan Rao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Lixuan Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Zhaoxin Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China
| | - Lianmei Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China.
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Chaurembo AI, Xing N, Chanda F, Li Y, Zhang HJ, Fu LD, Huang JY, Xu YJ, Deng WH, Cui HD, Tong XY, Shu C, Lin HB, Lin KX. Mitofilin in cardiovascular diseases: Insights into the pathogenesis and potential pharmacological interventions. Pharmacol Res 2024; 203:107164. [PMID: 38569981 DOI: 10.1016/j.phrs.2024.107164] [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: 11/30/2023] [Revised: 03/09/2024] [Accepted: 03/29/2024] [Indexed: 04/05/2024]
Abstract
The impact of mitochondrial dysfunction on the pathogenesis of cardiovascular disease is increasing. However, the precise underlying mechanism remains unclear. Mitochondria produce cellular energy through oxidative phosphorylation while regulating calcium homeostasis, cellular respiration, and the production of biosynthetic chemicals. Nevertheless, problems related to cardiac energy metabolism, defective mitochondrial proteins, mitophagy, and structural changes in mitochondrial membranes can cause cardiovascular diseases via mitochondrial dysfunction. Mitofilin is a critical inner mitochondrial membrane protein that maintains cristae structure and facilitates protein transport while linking the inner mitochondrial membrane, outer mitochondrial membrane, and mitochondrial DNA transcription. Researchers believe that mitofilin may be a therapeutic target for treating cardiovascular diseases, particularly cardiac mitochondrial dysfunctions. In this review, we highlight current findings regarding the role of mitofilin in the pathogenesis of cardiovascular diseases and potential therapeutic compounds targeting mitofilin.
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Affiliation(s)
- Abdallah Iddy Chaurembo
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Stake Key Laboratory of Chemical Biology, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Na Xing
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China.
| | - Francis Chanda
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Stake Key Laboratory of Chemical Biology, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Yuan Li
- Department of Cardiology, Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine (Zhongshan Hospital of Traditional Chinese Medicine), Zhongshan, Guangdong, China; Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Hui-Juan Zhang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Li-Dan Fu
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; School of Pharmacy, Zunyi Medical University, Zunyi, Guizhou, China
| | - Jian-Yuan Huang
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Yun-Jing Xu
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Stake Key Laboratory of Chemical Biology, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Wen-Hui Deng
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, Guangdong, China
| | - Hao-Dong Cui
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Guizhou Medical University, Guiyang, Guizhou, China
| | - Xin-Yue Tong
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Stake Key Laboratory of Chemical Biology, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China
| | - Chi Shu
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Food Science College, Shenyang Agricultural University, Shenyang, Liaoning, China
| | - Han-Bin Lin
- Zhongshan Institute for Drug Discovery, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Zhongshan, Guangdong, China; Stake Key Laboratory of Chemical Biology, Shanghai Institute of Materia, Medica, Chinese Academy of Sciences, Shanghai, China; University of Chinese Academy of Sciences, Beijing, China.
| | - Kai-Xuan Lin
- Department of Cardiology, Zhongshan Hospital of Traditional Chinese Medicine Affiliated to Guangzhou University of Traditional Chinese Medicine (Zhongshan Hospital of Traditional Chinese Medicine), Zhongshan, Guangdong, China; Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
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Singh D. Revolutionizing cellular energy: The convergence of mitochondrial dynamics and delivery technologies. Mitochondrion 2024; 76:101873. [PMID: 38503363 DOI: 10.1016/j.mito.2024.101873] [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: 02/18/2024] [Revised: 03/08/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024]
Abstract
The intersection of mitochondrial dynamics and delivery technologies heralds a paradigm shift in cellular biology and therapeutic intervention. Mitochondrial dynamics, encompassing fusion, fission, transport, and mitophagy, are critical for cellular energy production, signaling, and homeostasis. Dysregulation of these processes is implicated in a myriad of diseases, including neurodegenerative disorders, cardiovascular diseases, and cancer. Concurrently, advances in delivery technologies, such as nanocarriers, targeted delivery systems, and gene editing tools, offer unprecedented opportunities to manipulate mitochondrial function directly. This review synthesizes current knowledge on mitochondrial dynamics, examines recent breakthroughs in targeted delivery methods, and explores their potential convergence to modulate cellular energetics for therapeutic purposes. By integrating insights from biology, chemistry, and bioengineering, this review highlights the innovative approaches being developed to enhance mitochondrial function, underscoring the potential of this convergence to address complex diseases. This interdisciplinary perspective not only broadens our understanding of cellular processes but also paves the way for novel therapeutic strategies, marking a significant step forward in the quest for precision medicine and targeted interventions in mitochondrial-related diseases.
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Affiliation(s)
- Dilpreet Singh
- University Institute of Pharma Sciences, Chandigarh University, Gharuan, Mohali 140413, India; University Centre for Research and Development, Chandigarh University, Gharuan, Mohali 140413, India.
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136
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Degli Esposti M. Did mitophagy follow the origin of mitochondria? Autophagy 2024; 20:985-993. [PMID: 38361280 PMCID: PMC11135861 DOI: 10.1080/15548627.2024.2307215] [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: 09/20/2023] [Accepted: 01/13/2024] [Indexed: 02/17/2024] Open
Abstract
Mitophagy is the process of selective autophagy that removes superfluous and dysfunctional mitochondria. Mitophagy was first characterized in mammalian cells and is now recognized to follow several pathways including basal forms in specific organs. Mitophagy pathways are regulated by multiple, often interconnected factors. The present review aims to streamline this complexity and evaluate common elements that may define the evolutionary origin of mitophagy. Key issues surrounding mitophagy signaling at the mitochondrial surface may fundamentally derive from mitochondrial membrane dynamics. Elements of such membrane dynamics likely originated during the endosymbiosis of the alphaproteobacterial ancestor of our mitochondria but underwent an evolutionary leap forward in basal metazoa that determined the currently known variations in mitophagy signaling.Abbreviations: AGPAT, 1-acylglycerol-3-phosphate O-acyltransferase; ATG, autophagy related; BCL2L13, BCL2 like 13; BNIP3, BCL2 interacting protein 3; BNIP3L, BCL2 interacting protein 3 like; CALCOCO, calcium binding and coiled-coil domain; CL, cardiolipin; ER, endoplasmic reticulum; ERMES, ER-mitochondria encounter structure; FBXL4, F-box and leucine rich repeat protein 4; FUNDC1, FUN14 domain containing 1; GABARAPL1, GABA type A receptor associated protein like 1; HIF, hypoxia inducible factor; IMM, inner mitochondrial membrane; LBPA/BMP, lysobisphosphatidic acid; LIR, LC3-interacting region; LPA, lysophosphatidic acid; MAM, mitochondria-associated membranes; MAP1LC3/LC3, microtubule associated protein 1 light chain 3; MCL, monolysocardiolipin; ML, maximum likelihood; NBR1, NBR1 autophagy cargo receptor; OMM, outer mitochondrial membrane; PA, phosphatidic acid; PACS2, phosphofurin acidic cluster sorting protein 2; PC/PLC, phosphatidylcholine; PE, phosphatidylethanolamine; PHB2, prohibitin 2; PINK1, PTEN induced kinase 1; PtdIns, phosphatidylinositol; SAR, Stramenopiles, Apicomplexa and Rhizaria; TAX1BP1, Tax1 binding protein 1; ULK1, unc-51 like autophagy activating kinase 1; VDAC/porin, voltage dependent anion channel.
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Affiliation(s)
- Mauro Degli Esposti
- Center for Genomic Sciences, UNAM Campus de Morelos, Cuernavaca, Morelos, Mexico
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137
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Wei X, Yuan Y, Li M, Li Z, Wang X, Cheng H, Liu X, Hao J, Jin T. Nicotine aggravates pancreatic fibrosis in mice with chronic pancreatitis via mitochondrial calcium uniporter. Tob Induc Dis 2024; 22:TID-22-69. [PMID: 38686042 PMCID: PMC11057042 DOI: 10.18332/tid/186587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Revised: 03/27/2024] [Accepted: 03/30/2024] [Indexed: 05/02/2024] Open
Abstract
INTRODUCTION This study aimed to investigate the effects of nicotine on the activation of pancreatic stellate cells (PSCs) and pancreatic fibrosis in chronic pancreatitis (CP), along with its underlying molecular mechanisms. METHODS This was an in vivo and in vitro study. In vitro, PSCs were cultured to study the effects of nicotine on their activation and oxidative stress. Transcriptome sequencing was performed to identify potential signaling pathways involved in nicotine action. And the impact of nicotine on mitochondrial Ca2+ levels and Ca2+ transport-related proteins in PSCs was analyzed. The changes in nicotine effects were observed after the knockdown of the mitochondrial calcium uniporter (MCU) in PSCs. In vivo experiments were conducted using a mouse model of CP to assess the effects of nicotine on pancreatic fibrosis and oxidative stress in mice. The alterations in nicotine effects were observed after treatment with the MCU inhibitor Ru360. RESULTS In vitro experiments demonstrated that nicotine promoted PSCs activation, characterized by increased cell proliferation, elevated α-SMA and collagen expression. Nicotine also increased the production of reactive oxygen species (ROS) and cellular malondialdehyde (MDA), exacerbating oxidative stress damage. Transcriptome sequencing revealed that nicotine may exert its effects through the calcium signaling pathway, and it was verified that nicotine elevated mitochondrial Ca2+ levels and upregulated MCU expression. Knockdown of MCU reversed the effects of nicotine on mitochondrial calcium homeostasis, improved mitochondrial oxidative stress damage and structural dysfunction, thereby alleviating the activation of PSCs. In vivo validation experiments showed that nicotine significantly aggravated pancreatic fibrosis in CP mice, promoted PSCs activation, exacerbated pancreatic tissue oxidative stress, and increased MCU expression. However, treatment with Ru360 significantly mitigated these effects. CONCLUSIONS This study confirms that nicotine upregulates the expression of MCU, leading to mitochondrial calcium overload and exacerbating oxidative stress in PSCs, and ultimately promoting PSCs activation and exacerbating pancreatic fibrosis in CP.
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Affiliation(s)
- Xue Wei
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Yue Yuan
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Miaomiao Li
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Zhiren Li
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xinye Wang
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Haoxuan Cheng
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Xinjuan Liu
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jianyu Hao
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Tong Jin
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
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Nussberger S, Ghosh R, Wang S. New insights into the structure and dynamics of the TOM complex in mitochondria. Biochem Soc Trans 2024; 52:911-922. [PMID: 38629718 PMCID: PMC11088910 DOI: 10.1042/bst20231236] [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: 02/13/2024] [Revised: 03/21/2024] [Accepted: 04/03/2024] [Indexed: 04/25/2024]
Abstract
To date, there is no general physical model of the mechanism by which unfolded polypeptide chains with different properties are imported into the mitochondria. At the molecular level, it is still unclear how transit polypeptides approach, are captured by the protein translocation machinery in the outer mitochondrial membrane, and how they subsequently cross the entropic barrier of a protein translocation pore to enter the intermembrane space. This deficiency has been due to the lack of detailed structural and dynamic information about the membrane pores. In this review, we focus on the recently determined sub-nanometer cryo-EM structures and our current knowledge of the dynamics of the mitochondrial two-pore outer membrane protein translocation machinery (TOM core complex), which provide a starting point for addressing the above questions. Of particular interest are recent discoveries showing that the TOM core complex can act as a mechanosensor, where the pores close as a result of interaction with membrane-proximal structures. We highlight unusual and new correlations between the structural elements of the TOM complexes and their dynamic behavior in the membrane environment.
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Affiliation(s)
- Stephan Nussberger
- Department of Biophysics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | - Robin Ghosh
- Department of Bioenergetics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
| | - Shuo Wang
- Department of Biophysics, Institute of Biomaterials and Biomolecular Systems, University of Stuttgart, Stuttgart, Germany
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139
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Lei Y, Gan M, Qiu Y, Chen Q, Wang X, Liao T, Zhao M, Chen L, Zhang S, Zhao Y, Niu L, Wang Y, Zhu L, Shen L. The role of mitochondrial dynamics and mitophagy in skeletal muscle atrophy: from molecular mechanisms to therapeutic insights. Cell Mol Biol Lett 2024; 29:59. [PMID: 38654156 PMCID: PMC11036639 DOI: 10.1186/s11658-024-00572-y] [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: 01/09/2024] [Accepted: 04/04/2024] [Indexed: 04/25/2024] Open
Abstract
Skeletal muscle is the largest metabolic organ of the human body. Maintaining the best quality control and functional integrity of mitochondria is essential for the health of skeletal muscle. However, mitochondrial dysfunction characterized by mitochondrial dynamic imbalance and mitophagy disruption can lead to varying degrees of muscle atrophy, but the underlying mechanism of action is still unclear. Although mitochondrial dynamics and mitophagy are two different mitochondrial quality control mechanisms, a large amount of evidence has indicated that they are interrelated and mutually regulated. The former maintains the balance of the mitochondrial network, eliminates damaged or aged mitochondria, and enables cells to survive normally. The latter degrades damaged or aged mitochondria through the lysosomal pathway, ensuring cellular functional health and metabolic homeostasis. Skeletal muscle atrophy is considered an urgent global health issue. Understanding and gaining knowledge about muscle atrophy caused by mitochondrial dysfunction, particularly focusing on mitochondrial dynamics and mitochondrial autophagy, can greatly contribute to the prevention and treatment of muscle atrophy. In this review, we critically summarize the recent research progress on mitochondrial dynamics and mitophagy in skeletal muscle atrophy, and expound on the intrinsic molecular mechanism of skeletal muscle atrophy caused by mitochondrial dynamics and mitophagy. Importantly, we emphasize the potential of targeting mitochondrial dynamics and mitophagy as therapeutic strategies for the prevention and treatment of muscle atrophy, including pharmacological treatment and exercise therapy, and summarize effective methods for the treatment of skeletal muscle atrophy.
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Affiliation(s)
- Yuhang Lei
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mailin Gan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yanhao Qiu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Qiuyang Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Xingyu Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Tianci Liao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Mengying Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Lei Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Shunhua Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Ye Zhao
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Lili Niu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Yan Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China
| | - Li Zhu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China.
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
| | - Linyuan Shen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China.
- Key Laboratory of Livestock and Poultry Multi-Omics, Ministry of Agriculture and Rural Affairs, College of Animal and Technology, Sichuan Agricultural University, Chengdu, 611130, China.
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Chen YX, Zhao AR, Wei TW, Wang H, Wang LS. Progress of Mitochondrial Function Regulation in Cardiac Regeneration. J Cardiovasc Transl Res 2024:10.1007/s12265-024-10514-w. [PMID: 38647881 DOI: 10.1007/s12265-024-10514-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 04/11/2024] [Indexed: 04/25/2024]
Abstract
Heart failure and myocardial infarction, global health concerns, stem from limited cardiac regeneration post-injury. Myocardial infarction, typically caused by coronary artery blockage, leads to cardiac muscle cell damage, progressing to heart failure. Addressing the adult heart's minimal self-repair capability is crucial, highlighting cardiac regeneration research's importance. Studies reveal a metabolic shift from anaerobic glycolysis to oxidative phosphorylation in neonates as a key factor in impaired cardiac regeneration, with mitochondria being central. The heart's high energy demands rely on a robust mitochondrial network, essential for cellular energy, cardiac health, and regenerative capacity. Mitochondria's influence extends to redox balance regulation, signaling molecule interactions, and apoptosis. Changes in mitochondrial morphology and quantity also impact cardiac cell regeneration. This article reviews mitochondria's multifaceted role in cardiac regeneration, particularly in myocardial infarction and heart failure models. Understanding mitochondrial function in cardiac regeneration aims to enhance myocardial infarction and heart failure treatment methods and insights.
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Affiliation(s)
- Yi-Xi Chen
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - An-Ran Zhao
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Tian-Wen Wei
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Hao Wang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China
| | - Lian-Sheng Wang
- Department of Cardiology, the First Affiliated Hospital of Nanjing Medical University, Nanjing, 210029, China.
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141
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Li X, Shang J, Li S, Wang Y. Identification of a Novel Mitochondrial tRNA Mutation in Chinese Family with Type 2 Diabetes Mellitus. Pharmgenomics Pers Med 2024; 17:149-161. [PMID: 38645701 PMCID: PMC11032666 DOI: 10.2147/pgpm.s438978] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/29/2024] [Indexed: 04/23/2024] Open
Abstract
Background Mutations in mitochondrial tRNA (mt-tRNA) could be the origin of some type 2 diabetes mellitus (T2DM) cases, but the mechanism remained largely unknown. Aim The aim of this study was to assess the impact of a novel mitochondrial tRNACys/tRNATyr A5826G mutation on the development and progression of T2DM. Methods A four-generation Han Chinese family with maternally inherited diabetes underwent clinical, genetic and biochemical analyses. The mitochondrial DNA (mtDNA) mutations of three matrilineal relatives were screened by PCR-Sanger sequencing. Furthermore, to see whether m.A5826G mutations affected mitochondrial functions, the cybrid cell lines were derived from three subjects with m.A5826G mutation and three controls without this mutation. ATP was evaluated by luminescent cell viability assay, mitochondrial membrane potential (MMP), and reactive oxygen species (ROS) were determined by flow cytometry. The student's two-tailed, unpaired t-test was used to assess the statistical significance between the control and mutant results. Results The age at onset of diabetes in this pedigree varied from 40 to 63 years, with an average of 54 years. Mutational analysis of mitochondrial genomes revealed the presence of a novel m.A5826G mutation. Interestingly, the m.A5826G mutation occurred at the conjunction between tRNACys and tRNATyr, a very conserved position that was critical for tRNAs processing and functions. Using trans-mitochondrial cybrid cells, we found that mutant cells carrying the m.A5826G showed approximately 36.5% and 22.4% reductions in ATP and MMP, respectively. By contrast, mitochondrial ROS levels increased approximately 33.3%, as compared with the wild type cells. Conclusion A novel m.A5826G mutation was identified in a pedigree with T2DM, and this mutation would lead to mitochondrial dysfunction. Thus, the genetic spectrum of mitochondrial diabetes was expanded by including m.A5826G mutation in tRNACys/tRNATyr, our study provided novel insight into the molecular pathogenesis, early diagnosis, prevention and clinical treatment for mitochondrial diabetes.
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Affiliation(s)
- Xing Li
- Department of Endocrinology, Ordos Center Hospital, Ordos, Inner Mongolian, 017010, People’s Republic of China
| | - Jinyao Shang
- Department of Endocrinology, Ordos Center Hospital, Ordos, Inner Mongolian, 017010, People’s Republic of China
| | - Shuang Li
- Department of Endocrinology, Ordos Center Hospital, Ordos, Inner Mongolian, 017010, People’s Republic of China
| | - Yue Wang
- Department of Endocrinology, Ordos Center Hospital, Ordos, Inner Mongolian, 017010, People’s Republic of China
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Song N, Mei S, Wang X, Hu G, Lu M. Focusing on mitochondria in the brain: from biology to therapeutics. Transl Neurodegener 2024; 13:23. [PMID: 38632601 PMCID: PMC11022390 DOI: 10.1186/s40035-024-00409-w] [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: 12/10/2023] [Accepted: 03/13/2024] [Indexed: 04/19/2024] Open
Abstract
Mitochondria have multiple functions such as supplying energy, regulating the redox status, and producing proteins encoded by an independent genome. They are closely related to the physiology and pathology of many organs and tissues, among which the brain is particularly prominent. The brain demands 20% of the resting metabolic rate and holds highly active mitochondrial activities. Considerable research shows that mitochondria are closely related to brain function, while mitochondrial defects induce or exacerbate pathology in the brain. In this review, we provide comprehensive research advances of mitochondrial biology involved in brain functions, as well as the mitochondria-dependent cellular events in brain physiology and pathology. Furthermore, various perspectives are explored to better identify the mitochondrial roles in neurological diseases and the neurophenotypes of mitochondrial diseases. Finally, mitochondrial therapies are discussed. Mitochondrial-targeting therapeutics are showing great potentials in the treatment of brain diseases.
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Affiliation(s)
- Nanshan Song
- Department of Pharmacology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Shuyuan Mei
- The First Clinical Medical College, Nanjing Medical University, Nanjing, 211166, China
| | - Xiangxu Wang
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Neuroprotective Drug Discovery Key Laboratory, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China
| | - Gang Hu
- Department of Pharmacology, School of Medicine & Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Neuroprotective Drug Discovery Key Laboratory, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
| | - Ming Lu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Neuroprotective Drug Discovery Key Laboratory, School of Basic Medical Sciences, Nanjing Medical University, Nanjing, 211166, China.
- Changzhou Second People's Hospital, Changzhou Medical Center, Nanjing Medical University, Changzhou, 213000, China.
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Dabirmanesh B, Khajeh K, Uversky VN. The hidden world of protein aggregation. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2024; 206:473-494. [PMID: 38811088 DOI: 10.1016/bs.pmbts.2024.03.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2024]
Abstract
Though the book's journey into The Hidden World of Protein Aggregation has come to an end, the search for knowledge, the development of healthier lives, and the discovery of nature's mysteries continue, promising new horizons and discoveries yet to be discovered. The intricacies of protein misfolding and aggregation remain a mystery in cellular biology, despite advances made in unraveling them. In this chapter, we will summarize the specific conclusions from the previous chapters and explore the persistent obstacles and unanswered questions that motivate scientists to pursue exploration of protein misfolding and aggregation.
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Affiliation(s)
- Bahareh Dabirmanesh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Khosro Khajeh
- Department of Biochemistry, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Vladimir N Uversky
- Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences, Institute for Biological Instrumentation, Pushchino, Moscow, Russia; Department of Molecular Medicine and USF Health Byrd Alzheimer's Research Institute, Morsani College of Medicine, University of South Florida, Tampa, FL, United States
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Latha Laxmi IP, Job AT, Manickam V, Tamizhselvi R. Intertwined relationship of dynamin-related protein 1, mitochondrial metabolism and circadian rhythm. Mol Biol Rep 2024; 51:488. [PMID: 38578426 DOI: 10.1007/s11033-024-09430-8] [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: 12/16/2023] [Accepted: 03/08/2024] [Indexed: 04/06/2024]
Abstract
In recent years, mitochondria have gained significant interest in the field of biomedical research due to their impact on human health and ageing. As mitochondrial dynamics are strongly controlled by clock genes, misalignment of the circadian rhythm leads to adverse metabolic health effects. In this review, by exploring various aspects of research and potential links, we hope to update the current understanding of the intricate relationship between DRP1-mediated mitochondrial dynamics and changes in circadian rhythmicity leading to health issues. Thus, this review addresses the potential bidirectional relationships between DRP1-linked mitochondrial function and circadian rhythm misalignment, their impact on different metabolic pathways, and the potential therapeutics for metabolic and systemic disorders.
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Affiliation(s)
| | - Anica Tholath Job
- Department of Biotechnology, National Institute of Technology, Warangal, 506004, Telangana, India
| | - Venkatraman Manickam
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632104, Tamil Nadu, India
| | - Ramasamy Tamizhselvi
- School of Bio Sciences and Technology, Vellore Institute of Technology, Vellore, 632104, Tamil Nadu, India.
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Mavuduru VA, Vadupu L, Ghosh KK, Chakrabortty S, Gulyás B, Padmanabhan P, Ball WB. Mitochondrial phospholipid transport: Role of contact sites and lipid transport proteins. Prog Lipid Res 2024; 94:101268. [PMID: 38195013 DOI: 10.1016/j.plipres.2024.101268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 01/03/2024] [Accepted: 01/05/2024] [Indexed: 01/11/2024]
Abstract
One of the major constituents of mitochondrial membranes is the phospholipids, which play a key role in maintaining the structure and the functions of the mitochondria. However, mitochondria do not synthesize most of the phospholipids in situ, necessitating the presence of phospholipid import pathways. Even for the phospholipids, which are synthesized within the inner mitochondrial membrane (IMM), the phospholipid precursors must be imported from outside the mitochondria. Therefore, the mitochondria heavily rely on the phospholipid transport pathways for its proper functioning. Since, mitochondria are not part of a vesicular trafficking network, the molecular mechanisms of how mitochondria receive its phospholipids remain a relevant question. One of the major ways that hydrophobic phospholipids can cross the aqueous barrier of inter or intraorganellar spaces is by apposing membranes, thereby decreasing the distance of transport, or by being sequestered by lipid transport proteins (LTPs). Therefore, with the discovery of LTPs and membrane contact sites (MCSs), we are beginning to understand the molecular mechanisms of phospholipid transport pathways in the mitochondria. In this review, we will present a brief overview of the recent findings on the molecular architecture and the importance of the MCSs, both the intraorganellar and interorganellar contact sites, in facilitating the mitochondrial phospholipid transport. In addition, we will also discuss the role of LTPs for trafficking phospholipids through the intermembrane space (IMS) of the mitochondria. Mechanistic insights into different phospholipid transport pathways of mitochondria could be exploited to vary the composition of membrane phospholipids and gain a better understanding of their precise role in membrane homeostasis and mitochondrial bioenergetics.
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Affiliation(s)
- Vijay Aditya Mavuduru
- Department of Biological Sciences, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Guntur, Andhra Pradesh 522240, India
| | - Lavanya Vadupu
- Department of Biological Sciences, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Guntur, Andhra Pradesh 522240, India
| | - Krishna Kanta Ghosh
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore, 636921, Singapore
| | - Sabyasachi Chakrabortty
- Department of Chemistry, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Guntur, Andhra Pradesh 522502, India
| | - Balázs Gulyás
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore, 636921, Singapore; Cognitive Neuroimaging Centre, Nanyang Technological University, Singapore, 59 Nanyang Drive, 636921, Singapore; Department of Clinical Neuroscience, Karolinska Institute, Stockholm 17176, Sweden
| | - Parasuraman Padmanabhan
- Lee Kong Chian School of Medicine, Nanyang Technological University Singapore, 59 Nanyang Drive, Singapore, 636921, Singapore; Cognitive Neuroimaging Centre, Nanyang Technological University, Singapore, 59 Nanyang Drive, 636921, Singapore.
| | - Writoban Basu Ball
- Department of Biological Sciences, School of Engineering and Sciences, SRM University AP Andhra Pradesh, Guntur, Andhra Pradesh 522240, India.
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146
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Zou XF, Wu SH, Ma JG, Yin ZQ, Hu ZD, Wang YW, Yang J, Guo RD. 3-O-Methyl-D-Glucose Blunts Cold Ischemia Damage in Kidney via Inhibiting Ferroptosis. Biomed Pharmacother 2024; 173:116262. [PMID: 38394845 DOI: 10.1016/j.biopha.2024.116262] [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: 10/24/2023] [Revised: 01/20/2024] [Accepted: 02/06/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND The glucose derivative 3-O-methyl-D-glucose (OMG) is used as a cryoprotectant in freezing cells. However, its protective role and the related mechanism in static cold storage (CS) of organs are unknown. The present study aimed to investigate the effect of OMG on cod ischemia damage in cold preservation of donor kidney. METHODS Pretreatment of OMG on kidney was performed in an isolated renal cold storage model in rats. LDH activity in renal efflux was used to evaluate the cellular damage. Indicators including iron levels, mitochondrial damage, MDA level, and cellular apoptosis were measured. Kidney quality was assessed via a kidney transplantation (KTx) model in rats. The grafted animals were followed up for 7 days. Ischemia reperfusion (I/R) injury and inflammatory response were assessed by biochemical and histological analyses. RESULTS OMG pretreatment alleviated prolonged CS-induced renal damage as evidenced by reduced LDH activities and tubular apoptosis. Kidney with pCS has significantly increased iron, MDA, and TUNEL+ cells, implying the increased ferroptosis, which has been partly inhibited by OMG. OMG pretreatment has improved the renal function (p <0.05) and prolonged the 7-day survival of the grafting recipients after KTx, as compared to the control group. OMG has significantly decreased inflammation and tubular damage after KTx, as evidenced by CD3-positive cells and TUNEL-positive cells. CONCLUSION Our study demonstrated that OMG protected kidney against the prolonged cold ischemia-caused injuries through inhibiting ferroptosis. Our results suggested that OMG might have potential clinical application in cold preservation of donor kidney.
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Affiliation(s)
- Xun-Feng Zou
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Shao-Hua Wu
- Clinical Laboratory, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Jian-Gong Ma
- Department of Chemistry and Key Laboratory of Advanced Energy Materials Chemistry (MOE), College of Chemistry, Nankai University, Tianjin 300071, China
| | - Zhi-Qi Yin
- Department of Pathology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Zhan-Dong Hu
- Department of Pathology, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Yi-Wei Wang
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China
| | - Jie Yang
- University hospital, Tianjin Normal University, Tianjin 300192, China
| | - Ren-De Guo
- Department of General Surgery, Tianjin First Central Hospital, School of Medicine, Nankai University, Tianjin 300192, China.
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147
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Pegoraro C, Domingo-Ortí I, Conejos-Sánchez I, Vicent MJ. Unlocking the Mitochondria for Nanomedicine-based Treatments: Overcoming Biological Barriers, Improving Designs, and Selecting Verification Techniques. Adv Drug Deliv Rev 2024; 207:115195. [PMID: 38325562 DOI: 10.1016/j.addr.2024.115195] [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: 10/24/2023] [Revised: 01/13/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
Enhanced targeting approaches will support the treatment of diseases associated with dysfunctional mitochondria, which play critical roles in energy generation and cell survival. Obstacles to mitochondria-specific targeting include the presence of distinct biological barriers and the need to pass through (or avoid) various cell internalization mechanisms. A range of studies have reported the design of mitochondrially-targeted nanomedicines that navigate the complex routes required to influence mitochondrial function; nonetheless, a significant journey lies ahead before mitochondrially-targeted nanomedicines become suitable for clinical use. Moving swiftly forward will require safety studies, in vivo assays confirming effectiveness, and methodologies to validate mitochondria-targeted nanomedicines' subcellular location/activity. From a nanomedicine standpoint, we describe the biological routes involved (from administration to arrival within the mitochondria), the features influencing rational design, and the techniques used to identify/validate successful targeting. Overall, rationally-designed mitochondria-targeted-based nanomedicines hold great promise for precise subcellular therapeutic delivery.
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Affiliation(s)
- Camilla Pegoraro
- Polymer Therapeutics Laboratory and CIBERONC, Príncipe Felipe Research Center, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Inés Domingo-Ortí
- Polymer Therapeutics Laboratory and CIBERONC, Príncipe Felipe Research Center, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - Inmaculada Conejos-Sánchez
- Polymer Therapeutics Laboratory and CIBERONC, Príncipe Felipe Research Center, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
| | - María J Vicent
- Polymer Therapeutics Laboratory and CIBERONC, Príncipe Felipe Research Center, Av. Eduardo Primo Yúfera 3, E-46012 Valencia, Spain.
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148
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Zhang W, Li M, Ye X, Jiang M, Wu X, Tang Z, Hu L, Zhang H, Li Y, Pan J. Disturbance of mitochondrial dynamics in myocardium of broilers with pulmonary hypertension syndrome. Br Poult Sci 2024; 65:154-164. [PMID: 38380624 DOI: 10.1080/00071668.2024.2308277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Accepted: 12/05/2023] [Indexed: 02/22/2024]
Abstract
1. The following study investigated the relationship between pulmonary hypertension syndrome (PHS) and mitochondrial dynamics in broiler cardiomyocytes.2. An animal model for PHS was established by injecting broiler chickens with CM-32 cellulose particles. Broiler myocardial cells were cultured under hypoxic conditions to establish an in vitro model. The ascites heart index, histomorphology, mitochondrial ultrastructure, and mitochondrial dynamic-related gene and protein expression were evaluated.3. The myocardial fibres from PHS broilers had wider spaces and were wavy and twisted and the number of mitochondria increased. Compared with the control group, the gene and protein expression levels were decreased for Opa1, Mfn1, and Mfn2 in the myocardium of PHS broilers. The gene and protein expression was significantly increased for Drp1 and Mff.4. This study showed that PHS in broilers may cause myocardial mitochondrial dysfunction, specifically by diminishing mitochondrial fusion and enhancing fission, causing disturbances in the mitochondrial dynamics of the heart.
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Affiliation(s)
- W Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Ye
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - M Jiang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - X Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Z Tang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - L Hu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - H Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - Y Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
| | - J Pan
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong, P.R. China
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149
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Beg MA, Huang M, Vick L, Rao KNS, Zhang J, Chen Y. Targeting mitochondrial dynamics and redox regulation in cardiovascular diseases. Trends Pharmacol Sci 2024; 45:290-303. [PMID: 38458847 DOI: 10.1016/j.tips.2024.02.001] [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: 01/10/2024] [Revised: 02/12/2024] [Accepted: 02/13/2024] [Indexed: 03/10/2024]
Abstract
Accumulating evidence highlights the pivotal role of mitochondria in cardiovascular diseases (CVDs). Understanding the molecular mechanisms underlying mitochondrial dysfunction is crucial for developing targeted therapeutics. Recent years have seen substantial advancements in unraveling mitochondrial regulatory pathways in both normal and pathological states and the development of potent drugs. However, specific delivery of drugs into the mitochondria is still a challenge. We present recent findings on regulators of mitochondrial dynamics and reactive oxygen species (ROS), critical factors influencing mitochondrial function in CVDs. We also discuss advancements in drug delivery strategies aimed at overcoming the technical barrier in targeting mitochondria for CVD treatment.
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Affiliation(s)
| | - Minqi Huang
- HD Biosciences Inc. a WuXi AppTec company, San Diego, CA 92121, USA
| | - Lance Vick
- Department of Biochemistry, Medical College of Wisconsin, Milwaukee, WI 53226, USA
| | - K N Shashanka Rao
- Joint Department of Biomedical Engineering, Medical College of Wisconsin & Marquette University, Milwaukee, WI 53226, USA
| | - Jue Zhang
- Versiti Blood Research Institute, Milwaukee, WI 53226, USA
| | - Yiliang Chen
- Versiti Blood Research Institute, Milwaukee, WI 53226, USA; Department of Medicine, Medical College of Wisconsin, Milwaukee, WI 53226, USA.
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150
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Zhou X, Hong Y, Chen J, Yu Y, Wang S, Wei Y, Long C, Shen L, Wu S, Wei G. The necroptosis-mediated imbalance of mitochondrial dynamics is involved in DEHP-induced toxicity to immature testes via the PGAM5-DRP1 interaction. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2024; 346:123585. [PMID: 38367692 DOI: 10.1016/j.envpol.2024.123585] [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: 10/06/2023] [Revised: 01/27/2024] [Accepted: 02/14/2024] [Indexed: 02/19/2024]
Abstract
Di-(2-ethylhexyl) phthalate (DEHP) is a widely used plasticizer that has been shown to impair male reproduction, but the potential mechanism underlying testicular injury caused by DEHP remains unclear. In vivo, rats were gavaged consecutively from postnatal day (PND) 21 to PND 31 with 0, 250, or 500 mg/kg DEHP for 10 days, and impaired mitochondria and increased necroptosis were observed in immature testes. In vitro, the GC-1 and GC-2 cell lines were exposed to monoethylhexyl phthalate (MEHP) at 100, 200 and 400 μM for 24 h, and this exposure induced oxidative stress damage, necroptosis and mitochondrial injury. Necroptosis and mitochondrial fission were inhibited by the reactive oxygen species (ROS) inhibitor acetylcysteine, and the imbalanced mitochondrial dynamics were rescued by the RIPK1 inhibitor necrostatin-1. Colocalization and co-IP analyses confirmed an interaction between dynamin-related protein 1 (DRP1) and phosphoglycerate mutase 5 (PGAM5), indicating that PGAM5 dephosphorylates DRP1 at serine 637 to induce mitochondrial fragmentation and thereby induces germ cell damage. Drug prediction with Connectivity Map (cMap) identified sulforaphane as a therapeutic drug. In summary, our findings indicate that DEHP triggers necroptosis and mitochondrial injury via a ROS storm in immature testes and that the PGAM5-DRP1 interaction is involved in this process.
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Affiliation(s)
- Xiazhu Zhou
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yifan Hong
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Jing Chen
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yihang Yu
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China
| | - Siyuan Wang
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Yuexin Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Chunlan Long
- Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Lianju Shen
- Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
| | - Shengde Wu
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China.
| | - Guanghui Wei
- Department of Urology, Children's Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, 400014, PR China; Chongqing Key Laboratory of Structural Birth Defect and Reconstruction, Chongqing Key Laboratory of Children Urogenital Development and Tissue Engineering, Children's Hospital of Chongqing Medical University, Chongqing, 400014, PR China
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