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Zaninello M, Baptista P, Duarte FV. Mitochondrial Dynamics and mRNA Translation: A Local Synaptic Tale. BIOLOGY 2024; 13:746. [PMID: 39336173 PMCID: PMC11428642 DOI: 10.3390/biology13090746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2024] [Revised: 09/17/2024] [Accepted: 09/19/2024] [Indexed: 09/30/2024]
Abstract
Mitochondria are dynamic organelles that can adjust and respond to different stimuli within a cell. This plastic ability allows them to effectively coordinate several cellular functions in cells and becomes particularly relevant in highly complex cells such as neurons. An imbalance in mitochondrial dynamics can disrupt mitochondrial function, leading to abnormal cellular function and ultimately to a range of diseases, including neurodegenerative disorders. Regulation of mRNA transport and local translation inside neurons is crucial for maintaining the proteome of distal mitochondria, which is vital for energy production and synaptic function. A significant portion of the axonal transcriptome is dedicated to mRNAs for mitochondrial proteins, emphasizing the importance of local translation in sustaining mitochondrial function in areas far from the cell body. In neurons, local translation and the regulation of mRNAs encoding mitochondrial-shaping proteins could be essential for synaptic plasticity and neuronal health. The dynamics of these mRNAs, including their transport and local translation, may influence the morphology and function of mitochondria, thereby affecting the overall energy status and responsiveness of synapses. Comprehending the mitochondria-related mRNA regulation and local translation, as well as its influence on mitochondrial morphology near the synapses will help to better understand neuronal physiology and neurological diseases where mitochondrial dysfunction and impaired synaptic plasticity play a central role.
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Affiliation(s)
- Marta Zaninello
- Institute for Genetics, University of Cologne, 50931 Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), 50931 Cologne, Germany
| | - Pedro Baptista
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3004-504 Coimbra, Portugal
| | - Filipe V Duarte
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, 3004-504 Coimbra, Portugal
- Department of Life Sciences, University of Coimbra, 3004-504 Coimbra, Portugal
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Li Z, Liang S, Ke L, Wang M, Gao K, Li D, Xu Z, Li N, Zhang P, Cheng W. Cell life-or-death events in osteoporosis: All roads lead to mitochondrial dynamics. Pharmacol Res 2024; 208:107383. [PMID: 39214266 DOI: 10.1016/j.phrs.2024.107383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2024] [Revised: 08/14/2024] [Accepted: 08/26/2024] [Indexed: 09/04/2024]
Abstract
Mitochondria exhibit heterogeneous shapes and networks within and among cell types and tissues, also in normal or osteoporotic bone tissues with complex cell types. This dynamic characteristic is determined by the high plasticity provided by mitochondrial dynamics and is stemmed from responding to the survival and functional requirements of various bone cells in a specific microenvironments. In contrast, mitochondrial dysfunction, induced by dysregulation of mitochondrial dynamics, may act as a trigger of cell death signals, including common apoptosis and other forms of programmed cell death (PCD). These PCD processes consisting of tightly structured cascade gene expression events, can further influence the bone remodeling by facilitating the death of various bone cells. Mitochondrial dynamics, therefore, drive the bone cells to stand at the crossroads of life and death by integrating external signals and altering metabolism, shape, and signal-response properties of mitochondria. This implies that targeting mitochondrial dynamics displays significant potential in treatment of osteoporosis. Considerable effort has been made in osteoporosis to emphasize the parallel roles of mitochondria in regulating energy metabolism, calcium signal transduction, oxidative stress, inflammation, and cell death. However, the emerging field of mitochondrial dynamics-related PCD is not well understood. Herein, to bridge the gap, we outline the latest knowledge on mitochondrial dynamics regulating bone cell life or death during normal bone remodeling and osteoporosis.
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Affiliation(s)
- Zhichao Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Songlin Liang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China; Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Liqing Ke
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
| | - Mengjie Wang
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Kuanhui Gao
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Dandan Li
- College of Integrated Traditional Chinese and Western Medicine, Hebei University of Chinese Medicine, Shijiazhuang, 050011, China
| | - Zhanwang Xu
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China
| | - Nianhu Li
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, 250014, China; Department of Orthopedics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, 250014, China.
| | - Peng Zhang
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China; Faculty of Biomedical Engineering, Shenzhen University of Advanced Technology, Shenzhen, 518000, China; Key Laboratory of Biomedical Imaging Science and System, Chinese Academy of Sciences, Shenzhen, 518000, China; Shandong Zhongke Advanced Technology Co., Ltd., Jinan, 250300, China.
| | - Wenxiang Cheng
- Center for Translational Medicine Research and Development, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
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Gong Q, Wang J, Luo D, Xu Y, Zhang R, Li X, Yin Z, Fang J, Wang H. Accumulation of branched-chain amino acids deteriorates the neuroinflammatory response of Müller cells in diabetic retinopathy via leucine/Sestrin2-mediated sensing of mTOR signaling. Acta Diabetol 2024:10.1007/s00592-024-02349-3. [PMID: 39150511 DOI: 10.1007/s00592-024-02349-3] [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: 05/30/2024] [Accepted: 07/22/2024] [Indexed: 08/17/2024]
Abstract
AIMS This study aimed to investigate branched-chain amino acid (BCAA) catabolism in diabetic retinopathy (DR). METHODS Wild-type and db/db mice were fed BCAAs (5 or 10 mg/kg/day) for 12 weeks, and hyperglycemia-exposed Müller cells were treated with BCAAs (2 or 5 mmol/L) for 24 and 48 h. BCAA levels were measured using MS/MS. Western blotting was performed to detect proteins. Flow cytometry, oxygen consumption rate, and Cell Counting Kit-8 assays were used to evaluate Müller cell viability. Each experiment was conducted at least thrice. RESULTS BCAAs and branched-chain α-keto acids (BCKAs) were increased in the retina and systemic tissues of diabetic mice, and these changes were further enhanced to approximately 2-fold by extra BCAAs compared to wild-type group. In vitro, BCAAs and BCKAs were induced in hyperglycemic Müller cells, and augmented by BCAA supplementation. The aberrant BCAA catabolism was accompanied by mTORC1 activation and subsequently induced TNF-ɑ, VEGFA, GS, and GFAP in retinas and Müller cells under diabetic conditions. The cell apoptosis rate increased by approximately 50%, and mitochondrial respiration was inhibited by hyperglycemia and BCAA in Müller cells. Additionally, mTORC1 signaling was activated by leucine in Müller cells. Knockdown of Sestrin2 or LeuRS significantly abolished the leucine-induced mTORC1 phosphorylation and protected Müller cell viability under diabetic conditions. CONCLUSIONS We found that BCAA catabolism is hindered in DR through mTORC1 activation. Leucine plays a key role in inducing mTORC1 by sensing Sestrin2 in Müller cells. Targeting Sestrin2 may ameliorate the toxic effects of BCAA accumulation on Müller cells in DR.
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Affiliation(s)
- Qiaoyun Gong
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Jingyi Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Dawei Luo
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Yupeng Xu
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Rulin Zhang
- Department of Laboratory Medicine, Shanghai General Hospital, Shanghai, China
| | - Xin Li
- Department of Ultrasound, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China
| | - Zihan Yin
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Junwei Fang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China
| | - Haiyan Wang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University, Shanghai, China.
- National Clinical Research Center for Eye Diseases, No. 100 Haining Road, Hongkou District, Shanghai, 200080, China.
- Shanghai Key Laboratory of Ocular Fundus Diseases, Shanghai, China.
- Shanghai Engineering Center for Visual Science and Photomedicine, Shanghai, China.
- Shanghai Engineering Center for Precise Diagnosis and Treatment of Eye Disease, Shanghai, China.
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Cai P, Li W, Xu Y, Wang H. Drp1 and neuroinflammation: Deciphering the interplay between mitochondrial dynamics imbalance and inflammation in neurodegenerative diseases. Neurobiol Dis 2024; 198:106561. [PMID: 38857809 DOI: 10.1016/j.nbd.2024.106561] [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: 03/17/2024] [Revised: 05/24/2024] [Accepted: 06/07/2024] [Indexed: 06/12/2024] Open
Abstract
Neuroinflammation and mitochondrial dysfunction are closely intertwined with the pathophysiology of neurological disorders. Recent studies have elucidated profound alterations in mitochondrial dynamics across a spectrum of neurological disorders. Dynamin-related protein 1 (DRP1) emerges as a pivotal regulator of mitochondrial fission, with its dysregulation disrupting mitochondrial homeostasis and fueling neuroinflammation, thereby exacerbating disease severity. In addition to its role in mitochondrial dynamics, DRP1 plays a crucial role in modulating inflammation-related pathways. This review synthesizes important functions of DRP1 in the central nervous system (CNS) and the impact of epigenetic modification on the progression of neurodegenerative diseases. The intricate interplay between neuroinflammation and DRP1 in microglia and astrocytes, central contributors to neuroinflammation, is expounded upon. Furthermore, the use of DRP1 inhibitors to influence the activation of microglia and astrocytes, as well as their involvement in processes such as mitophagy, mitochondrial oxidative stress, and calcium ion transport in CNS-mediated neuroinflammation, is scrutinized. The modulation of microglia to astrocyte crosstalk by DRP1 and its role in inflammatory neurodegeneration is also highlighted. Overall, targeting DRP1 presents a promising avenue for ameliorating neuroinflammation and enhancing the therapeutic management of neurological disorders.
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Affiliation(s)
- Peiyang Cai
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China
| | - Wuhao Li
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China
| | - Ye Xu
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China
| | - Hui Wang
- Jiangsu Key Laboratory of Medical Science and Laboratory Medicine, Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang 212013, Jiangsu, PR China..
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Chen JK, Ramesh S, Islam MN, Shibu MA, Kuo CH, Hsieh DJY, Lin SZ, Kuo WW, Huang CY, Ho TJ. Ohwia caudata inhibits doxorubicin-induced cardiotoxicity by regulating mitochondrial dynamics via the IGF-IIR/p-Drp1/PARP signaling pathway. Biotechnol Appl Biochem 2024. [PMID: 38837810 DOI: 10.1002/bab.2620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Accepted: 05/16/2024] [Indexed: 06/07/2024]
Abstract
The most effective drug, doxorubicin (DOX), is widely used worldwide for clinical application as an anticancer drug. DOX-induced cytotoxicity is characterized by mitochondrial dysfunction. There is no alternative treatment against DOX-induced cardiac damage despite intensive research in the present decades. Ohwia caudata has emerged as a potential herbal remedy that prevents from DOX-induced cytotoxicity owing to its pharmacological action of sustaining mitochondrial dynamics by attenuating oxidative stress and inducing cellular longevity. However, its underlying mechanisms are unknown. The novel treatment provided here depends on new evidence from DOX-treated H9c2 cells, which significantly enhanced insulin-like growth factor (IGF) II receptor (IGF-IIR) pathways that activated calcineurin and phosphorylated dynamin-related protein 1 (p-Drp1) at ser616 (p-Drp1[ser616]); cells undergo apoptosis due to these factors, which translocate to mitochondria and disrupt their function and integrity, and in terms of herbal medicine treatment, which significantly blocked these phenomena. Thus, our findings indicate that maintaining integrity of mitochondria is an essential element in lowering DOX-induced cytotoxicity, which further emphasizes that our herbal medicine can successfully block IGF-IIR pathways and could potentially act as an alternative mechanism in terms of cardioprotective against doxorubicin.
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Affiliation(s)
- Jhong-Kuei Chen
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
| | - Samiraj Ramesh
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Department of Research and Innovation, Institute of Biotechnology, Saveetha School of Engineering (SSE), Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai, India
| | - Md Nazmul Islam
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | | | - Chia-Hua Kuo
- Laboratory of Exercise Biochemistry, University of Taipei, Taipei, Taiwan
| | - Dennis Jine-Yuan Hsieh
- School of Medical Laboratory and Biotechnology, Chung Shan Medical University, Taichung, Taiwan
- Clinical Laboratory, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Shinn-Zong Lin
- Bioinnovation Center, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Department of Neurosurgery, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Wei-Wen Kuo
- Department of Biological Science and Technology, College of Life Sciences, China Medical University, Taichung, Taiwan
- Ph.D. Program for Biotechnology Industry, China Medical University, Taichung, Taiwan
- School of Pharmacy, China Medical University, Taichung, Taiwan
| | - Chih-Yang Huang
- Cardiovascular and Mitochondrial Related Disease Research Center, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Asia University, Taichung, Taiwan
- Center of General Education, Buddhist Tzu Chi Medical Foundation, Tzu Chi University of Science and Technology, Hualien, Taiwan
| | - Tsung-Jung Ho
- Department of Chinese Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Integration Center of Traditional Chinese and Modern Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
- Institute of Medical Sciences, Tzu Chi University, Hualien, Taiwan
- School of Post-Baccalaureate Chinese Medicine, College of Medicine, Tzu Chi University, Hualien, Taiwan
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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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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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8
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Wyżewski Z, Stępkowska J, Kobylińska AM, Mielcarska A, Mielcarska MB. Mcl-1 Protein and Viral Infections: A Narrative Review. Int J Mol Sci 2024; 25:1138. [PMID: 38256213 PMCID: PMC10816053 DOI: 10.3390/ijms25021138] [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: 12/14/2023] [Revised: 01/10/2024] [Accepted: 01/15/2024] [Indexed: 01/24/2024] Open
Abstract
MCL-1 is the prosurvival member of the Bcl-2 family. It prevents the induction of mitochondria-dependent apoptosis. The molecular mechanisms dictating the host cell viability gain importance in the context of viral infections. The premature apoptosis of infected cells could interrupt the pathogen replication cycle. On the other hand, cell death following the effective assembly of progeny particles may facilitate virus dissemination. Thus, various viruses can interfere with the apoptosis regulation network to their advantage. Research has shown that viral infections affect the intracellular amount of MCL-1 to modify the apoptotic potential of infected cells, fitting it to the "schedule" of the replication cycle. A growing body of evidence suggests that the virus-dependent deregulation of the MCL-1 level may contribute to several virus-driven diseases. In this work, we have described the role of MCL-1 in infections caused by various viruses. We have also presented a list of promising antiviral agents targeting the MCL-1 protein. The discussed results indicate targeted interventions addressing anti-apoptotic MCL1 as a new therapeutic strategy for cancers as well as other diseases. The investigation of the cellular and molecular mechanisms involved in viral infections engaging MCL1 may contribute to a better understanding of the regulation of cell death and survival balance.
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Affiliation(s)
- Zbigniew Wyżewski
- Institute of Biological Sciences, Cardinal Stefan Wyszyński University in Warsaw, Dewajtis 5, 01-815 Warsaw, Poland
| | - Justyna Stępkowska
- Institute of Family Sciences, Cardinal Stefan Wyszyński University in Warsaw, Dewajtis 5, 01-815 Warsaw, Poland;
| | - Aleksandra Maria Kobylińska
- Division of Immunology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (A.M.K.); (M.B.M.)
| | - Adriana Mielcarska
- Department of Gastroenterology, Hepatology, Nutritional Disorders and Pediatrics, The Children’s Memorial Health Institute, Av. Dzieci Polskich 20, 04-730 Warsaw, Poland;
| | - Matylda Barbara Mielcarska
- Division of Immunology, Department of Preclinical Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences—SGGW, Ciszewskiego 8, 02-786 Warsaw, Poland; (A.M.K.); (M.B.M.)
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9
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Zerihun M, Qvit N. Selective inhibitors targeting Fis1/Mid51 protein-protein interactions protect against hypoxia-induced damage in cardiomyocytes. Front Pharmacol 2023; 14:1275370. [PMID: 38192411 PMCID: PMC10773907 DOI: 10.3389/fphar.2023.1275370] [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: 08/09/2023] [Accepted: 11/27/2023] [Indexed: 01/10/2024] Open
Abstract
Cardiovascular diseases (CVDs) are the most common non-communicable diseases globally. An estimated 17.9 million people died from CVDs in 2019, representing 32% of all global deaths. Mitochondria play critical roles in cellular metabolic homeostasis, cell survival, and cell death, as well as producing most of the cell's energy. Protein-protein interactions (PPIs) have a significant role in physiological and pathological processes, and aberrant PPIs are associated with various diseases, therefore they are potential drug targets for a broad range of therapeutic areas. Due to their ability to mimic natural interaction motifs and cover relatively larger interaction region, peptides are very promising as PPI inhibitors. To expedite drug discovery, computational approaches are widely used for screening potential lead compounds. Here, we developed peptides that inhibit mitochondrial fission 1 (Fis1)/mitochondrial dynamics 51 kDa (Mid51) PPI to reduce the cellular damage that can lead to various human pathologies, such as CVDs. Based on a rational design approach we developed peptide inhibitors of the Fis1/Mid51 PPI. In silico and in vitro studies were done to evaluate the biological activity and molecular interactions of the peptides. Two peptides, CVP-241 and CVP-242 were identified based on low binding energy and molecular dynamics simulations. These peptides inhibit Fis1/Mid51 PPI (-1324.9 kcal mol-1) in docking calculations (CVP-241, -741.3 kcal mol-1, and CVP-242, -747.4 kcal mol-1), as well as in vitro experimental studies Fis1/Mid51 PPI (KD 0.054 µM) Fis1/Mid51 PPI + CVP-241 (KD 3.43 µM), and Fis1/Mid51 PPI + CVP-242 (KD 44.58 µM). Finally, these peptides have no toxicity to H9c2 cells, and they increase cell viability in cardiomyocytes (H9c2 cells). Consequently, the identified inhibitor peptides could serve as potent molecules in basic research and as leads for therapeutic development.
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Affiliation(s)
| | - Nir Qvit
- The Azrieli Faculty of Medicine in the Galilee, Bar-Ilan University, Safed, Israel
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Garrido-Bazán V, Guzmán-Ocampo DC, Domínguez L, Aguirre J. Filamentous actin destabilization by H 2O 2 favors DnmA aggregation, with crucial roles of cysteines 450 and 776 in mitochondrial and peroxisomal division in Aspergillus nidulans. mBio 2023; 14:e0282223. [PMID: 38014993 PMCID: PMC10746283 DOI: 10.1128/mbio.02822-23] [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: 10/20/2023] [Accepted: 11/07/2023] [Indexed: 11/29/2023] Open
Abstract
IMPORTANCE Mitochondria constitute major sources of H2O2 and other reactive oxygen species in eukaryotic cells. The division of these organelles is crucial for multiple processes in cell biology and relies on highly regulated mechano-GTPases that are oligomerization dependent and belong to the dynamin-related protein family, like A. nidulans DnmA. Our previous work demonstrated that H2O2 induces mitochondrial constriction, division, and remodeling of the outer membrane. Here, we show that H2O2 also induces a DnmA aggregation consistent with higher-order oligomerization and its recruitment to mitochondria. The study of this response uncovered that H2O2 induces the depolymerization and reorganization of actin as well as the critical role that cysteines 450 and 776 play in DnmA function. Our results provide new insights into the mechanisms of reactive oxygen species cell signaling and how they can regulate the dynamics of the actin cytoskeleton and the division of mitochondria and peroxisomes.
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Affiliation(s)
- Verónica Garrido-Bazán
- Instituto de Fisiología Celular, Departamento de Biología Celular y Desarrollo, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Dulce C. Guzmán-Ocampo
- Facultad de Química, Departamento de Fisicoquímica, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Laura Domínguez
- Facultad de Química, Departamento de Fisicoquímica, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Jesús Aguirre
- Instituto de Fisiología Celular, Departamento de Biología Celular y Desarrollo, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
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11
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Atici AE, Crother TR, Noval Rivas M. Mitochondrial quality control in health and cardiovascular diseases. Front Cell Dev Biol 2023; 11:1290046. [PMID: 38020895 PMCID: PMC10657886 DOI: 10.3389/fcell.2023.1290046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Cardiovascular diseases (CVDs) are one of the primary causes of mortality worldwide. An optimal mitochondrial function is central to supplying tissues with high energy demand, such as the cardiovascular system. In addition to producing ATP as a power source, mitochondria are also heavily involved in adaptation to environmental stress and fine-tuning tissue functions. Mitochondrial quality control (MQC) through fission, fusion, mitophagy, and biogenesis ensures the clearance of dysfunctional mitochondria and preserves mitochondrial homeostasis in cardiovascular tissues. Furthermore, mitochondria generate reactive oxygen species (ROS), which trigger the production of pro-inflammatory cytokines and regulate cell survival. Mitochondrial dysfunction has been implicated in multiple CVDs, including ischemia-reperfusion (I/R), atherosclerosis, heart failure, cardiac hypertrophy, hypertension, diabetic and genetic cardiomyopathies, and Kawasaki Disease (KD). Thus, MQC is pivotal in promoting cardiovascular health. Here, we outline the mechanisms of MQC and discuss the current literature on mitochondrial adaptation in CVDs.
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Affiliation(s)
- Asli E. Atici
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Timothy R. Crother
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
| | - Magali Noval Rivas
- Department of Pediatrics, Division of Infectious Diseases and Immunology, Guerin Children’s at Cedars-Sinai Medical Center, Los Angeles, CA, United States
- Infectious and Immunologic Diseases Research Center (IIDRC), Department of Biomedical Sciences, Cedars-Sinai Medical Center, Los Angeles, CA, United States
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12
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Wu D, Tian L, Hoskin V, Dasgupta A. Editorial: The effects of mitochondrial dysfunction on the cell cycle. Front Cell Dev Biol 2023; 11:1303834. [PMID: 37928899 PMCID: PMC10622665 DOI: 10.3389/fcell.2023.1303834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Affiliation(s)
- Danchen Wu
- Department of Medicine, Queen’s University, Kingston, ON, Canada
| | - Lian Tian
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, United Kingdom
| | - Victoria Hoskin
- Division of Cancer Biology and Genetics, Department of Pathology and Molecular Medicine, Queen's Cancer Research Institute, Queen's University, Kingston, ON, Canada
| | - Asish Dasgupta
- Department of Medicine, Queen’s University, Kingston, ON, Canada
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13
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Hao S, Huang H, Ma RY, Zeng X, Duan CY. Multifaceted functions of Drp1 in hypoxia/ischemia-induced mitochondrial quality imbalance: from regulatory mechanism to targeted therapeutic strategy. Mil Med Res 2023; 10:46. [PMID: 37833768 PMCID: PMC10571487 DOI: 10.1186/s40779-023-00482-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Hypoxic-ischemic injury is a common pathological dysfunction in clinical settings. Mitochondria are sensitive organelles that are readily damaged following ischemia and hypoxia. Dynamin-related protein 1 (Drp1) regulates mitochondrial quality and cellular functions via its oligomeric changes and multiple modifications, which plays a role in mediating the induction of multiple organ damage during hypoxic-ischemic injury. However, there is active controversy and gaps in knowledge regarding the modification, protein interaction, and functions of Drp1, which both hinder and promote development of Drp1 as a novel therapeutic target. Here, we summarize recent findings on the oligomeric changes, modification types, and protein interactions of Drp1 in various hypoxic-ischemic diseases, as well as the Drp1-mediated regulation of mitochondrial quality and cell functions following ischemia and hypoxia. Additionally, potential clinical translation prospects for targeting Drp1 are discussed. This review provides new ideas and targets for proactive interventions on multiple organ damage induced by various hypoxic-ischemic diseases.
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Affiliation(s)
- Shuai Hao
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002 China
| | - He Huang
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Rui-Yan Ma
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Department of Cardiovascular Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037 China
| | - Xue Zeng
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Institute for Brain Science and Disease, Chongqing Medical University, Chongqing, 400010 China
| | - Chen-Yang Duan
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
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14
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Jung KT. Towards precision pain management-the case for targeting DRP1 in remifentanil-induced hyperalgesia. Korean J Pain 2023; 36:405-407. [PMID: 37718590 PMCID: PMC10551392 DOI: 10.3344/kjp.23258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 09/09/2023] [Indexed: 09/19/2023] Open
Affiliation(s)
- Ki Tae Jung
- Department of Anesthesiology and Pain Medicine, Chosun University Hospital, School of Medicine and Medical College, Chosun University, Gwangju, Korea
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15
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Harrington JS, Ryter SW, Plataki M, Price DR, Choi AMK. Mitochondria in health, disease, and aging. Physiol Rev 2023; 103:2349-2422. [PMID: 37021870 PMCID: PMC10393386 DOI: 10.1152/physrev.00058.2021] [Citation(s) in RCA: 123] [Impact Index Per Article: 123.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 04/07/2023] Open
Abstract
Mitochondria are well known as organelles responsible for the maintenance of cellular bioenergetics through the production of ATP. Although oxidative phosphorylation may be their most important function, mitochondria are also integral for the synthesis of metabolic precursors, calcium regulation, the production of reactive oxygen species, immune signaling, and apoptosis. Considering the breadth of their responsibilities, mitochondria are fundamental for cellular metabolism and homeostasis. Appreciating this significance, translational medicine has begun to investigate how mitochondrial dysfunction can represent a harbinger of disease. In this review, we provide a detailed overview of mitochondrial metabolism, cellular bioenergetics, mitochondrial dynamics, autophagy, mitochondrial damage-associated molecular patterns, mitochondria-mediated cell death pathways, and how mitochondrial dysfunction at any of these levels is associated with disease pathogenesis. Mitochondria-dependent pathways may thereby represent an attractive therapeutic target for ameliorating human disease.
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Affiliation(s)
- John S Harrington
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | | | - Maria Plataki
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | - David R Price
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
| | - Augustine M K Choi
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, New York-Presbyterian Hospital/Weill Cornell Medical Center, Weill Cornell Medicine, New York, New York, United States
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16
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Zhou X, Jiang Y, Wang Y, Fan L, Zhu Y, Chen Y, Wang Y, Zhu Y, Wang H, Pan Z, Li Z, Zhu X, Ren R, Ge Z, Lai D, Lai EY, Chen T, Wang K, Liang P, Qin L, Liu C, Qiu C, Simons M, Yu L. Endothelial FIS1 DeSUMOylation Protects Against Hypoxic Pulmonary Hypertension. Circ Res 2023; 133:508-531. [PMID: 37589160 DOI: 10.1161/circresaha.122.321200] [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: 05/31/2022] [Accepted: 08/07/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Hypoxia is a major cause and promoter of pulmonary hypertension (PH), a representative vascular remodeling disease with poor prognosis and high mortality. However, the mechanism underlying how pulmonary arterial system responds to hypoxic stress during PH remains unclear. Endothelial mitochondria are considered signaling organelles on oxygen tension. Results from previous clinical research and our studies suggested a potential role of posttranslational SUMOylation (small ubiquitin-like modifier modification) in endothelial mitochondria in hypoxia-related vasculopathy. METHODS Chronic hypoxia mouse model and Sugen/hypoxia rat model were employed as PH animal models. Mitochondrial morphology and subcellular structure were determined by transmission electron and immunofluorescent microscopies. Mitochondrial metabolism was determined by mitochondrial oxygen consumption rate and extracellular acidification rate. SUMOylation and protein interaction were determined by immunoprecipitation. RESULTS The involvement of SENP1 (sentrin-specific protease 1)-mediated SUMOylation in mitochondrial remodeling in the pulmonary endothelium was identified in clinical specimens of hypoxia-related PH and was verified in human pulmonary artery endothelial cells under hypoxia. Further analyses in clinical specimens, hypoxic rat and mouse PH models, and human pulmonary artery endothelial cells and human embryonic stem cell-derived endothelial cells revealed that short-term hypoxia-induced SENP1 translocation to endothelial mitochondria to regulate deSUMOylation (the reversible process of SUMOylation) of mitochondrial fission protein FIS1 (mitochondrial fission 1), which facilitated FIS1 assembling with fusion protein MFN2 (mitofusin 2) and mitochondrial gatekeeper VDAC1 (voltage-dependent anion channel 1), and the membrane tethering activity of MFN2 by enhancing its oligomerization. Consequently, FIS1 deSUMOylation maintained the mitochondrial integrity and endoplasmic reticulum-mitochondria calcium communication across mitochondrial-associated membranes, subsequently preserving pulmonary endothelial function and vascular homeostasis. In contrast, prolonged hypoxia disabled the FIS1 deSUMOylation by diminishing the availability of SENP1 in mitochondria via inducing miR (micro RNA)-138 and consequently resulted in mitochondrial dysfunction and metabolic reprogramming in pulmonary endothelium. Functionally, introduction of viral-packaged deSUMOylated FIS1 within pulmonary endothelium in mice improved pulmonary endothelial dysfunction and hypoxic PH development, while knock-in of SUMO (small ubiquitin-like modifier)-conjugated FIS1 in mice exaggerated the diseased cellular and tissue phenotypes. CONCLUSIONS By maintaining endothelial mitochondrial homeostasis, deSUMOylation of FIS1 adaptively preserves pulmonary endothelial function against hypoxic stress and consequently protects against PH. The FIS1 deSUMOylation-SUMOylation transition in pulmonary endothelium is an intrinsic pathogenesis of hypoxic PH.
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Affiliation(s)
- Xiaofei Zhou
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Yuanqing Jiang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Yuewen Wang
- School of Basic Medical Sciences, Shaanxi University of Chinese Medicine, Xianyang, China (Yuewen Wang)
| | - Linge Fan
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Yunhui Zhu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- Cardiovascular Research Center, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, CT (X. Zhu, L.Q., M.S.)
| | - Yefeng Chen
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Yiran Wang
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Yingyi Zhu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Hongkun Wang
- Institute of Translational Medicine (H.W., P.L.), Hangzhou, China
| | - Zihang Pan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China (Z.P., K.W.)
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.P., K.W.)
| | - Zhoubin Li
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L., E.Y.-L., T.C.)
| | - Xiaolong Zhu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
| | - Ruizhe Ren
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
| | - Zhen Ge
- School of Pharmaceutical Sciences, Hangzhou Medical College, Zhejiang, China (Z.G.)
| | - Dongwu Lai
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
| | - En Yin Lai
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L., E.Y.-L., T.C.)
| | - Ting Chen
- The First Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, China (Z.L., E.Y.-L., T.C.)
| | - Kai Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Peking University, Beijing, China (Z.P., K.W.)
- Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China (Z.P., K.W.)
| | - Ping Liang
- Institute of Translational Medicine (H.W., P.L.), Hangzhou, China
| | - Lingfeng Qin
- Cardiovascular Research Center, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, CT (X. Zhu, L.Q., M.S.)
| | - Cuiqing Liu
- School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, China (C.L.)
| | - Cong Qiu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
- Cancer Center, Zhejiang University (C.Q., L.Y.), Hangzhou, China
| | - Michael Simons
- Cardiovascular Research Center, Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine, New Haven, CT (X. Zhu, L.Q., M.S.)
| | - Luyang Yu
- Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province of Sir Run Run Shaw Hospital (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, X. Zhu, R.R., D.L., C.Q., L.Y.), Hangzhou, China
- MOE Laboratory of Biosystems Homeostasis & Protection of College of Life Sciences, Joint Research Centre for Engineering Biology, Zhejiang University-University of Edinburgh Institute (X. Zhou, Y.J., L.F., Yunhui Zhu, Y.C., Yiran Wang, Yingyi Zhu, R.R., C.Q., L.Y.), Hangzhou, China
- Cancer Center, Zhejiang University (C.Q., L.Y.), Hangzhou, China
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17
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Hao Y, Zhao L, Zhao JY, Han X, Zhou X. Unveiling the potential of mitochondrial dynamics as a therapeutic strategy for acute kidney injury. Front Cell Dev Biol 2023; 11:1244313. [PMID: 37635869 PMCID: PMC10456901 DOI: 10.3389/fcell.2023.1244313] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Acute Kidney Injury (AKI), a critical clinical syndrome, has been strongly linked to mitochondrial malfunction. Mitochondria, vital cellular organelles, play a key role in regulating cellular energy metabolism and ensuring cell survival. Impaired mitochondrial function in AKI leads to decreased energy generation, elevated oxidative stress, and the initiation of inflammatory cascades, resulting in renal tissue damage and functional impairment. Therefore, mitochondria have gained significant research attention as a potential therapeutic target for AKI. Mitochondrial dynamics, which encompass the adaptive shifts of mitochondria within cellular environments, exert significant influence on mitochondrial function. Modulating these dynamics, such as promoting mitochondrial fusion and inhibiting mitochondrial division, offers opportunities to mitigate renal injury in AKI. Consequently, elucidating the mechanisms underlying mitochondrial dynamics has gained considerable importance, providing valuable insights into mitochondrial regulation and facilitating the development of innovative therapeutic approaches for AKI. This comprehensive review aims to highlight the latest advancements in mitochondrial dynamics research, provide an exhaustive analysis of existing studies investigating the relationship between mitochondrial dynamics and acute injury, and shed light on their implications for AKI. The ultimate goal is to advance the development of more effective therapeutic interventions for managing AKI.
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Affiliation(s)
- Yajie Hao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Limei Zhao
- The Fifth Clinical Medical College of Shanxi Medical University, Taiyuan, China
| | - Jing Yu Zhao
- The Third Clinical College, Shanxi University of Chinese Medicine, Jinzhong, Shanxi, China
| | - Xiutao Han
- The Third Clinical College, Shanxi University of Chinese Medicine, Jinzhong, Shanxi, China
| | - Xiaoshuang Zhou
- Department of Nephrology, Shanxi Provincial People’s Hospital, The Fifth Clinical Medical College of Shanxi Medical University, Shanxi Kidney Disease Institute, Taiyuan, China
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18
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Muñoz JP, Basei FL, Rojas ML, Galvis D, Zorzano A. Mechanisms of Modulation of Mitochondrial Architecture. Biomolecules 2023; 13:1225. [PMID: 37627290 PMCID: PMC10452872 DOI: 10.3390/biom13081225] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Revised: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/27/2023] Open
Abstract
Mitochondrial network architecture plays a critical role in cellular physiology. Indeed, alterations in the shape of mitochondria upon exposure to cellular stress can cause the dysfunction of these organelles. In this scenario, mitochondrial dynamics proteins and the phospholipid composition of the mitochondrial membrane are key for fine-tuning the modulation of mitochondrial architecture. In addition, several factors including post-translational modifications such as the phosphorylation, acetylation, SUMOylation, and o-GlcNAcylation of mitochondrial dynamics proteins contribute to shaping the plasticity of this architecture. In this regard, several studies have evidenced that, upon metabolic stress, mitochondrial dynamics proteins are post-translationally modified, leading to the alteration of mitochondrial architecture. Interestingly, several proteins that sustain the mitochondrial lipid composition also modulate mitochondrial morphology and organelle communication. In this context, pharmacological studies have revealed that the modulation of mitochondrial shape and function emerges as a potential therapeutic strategy for metabolic diseases. Here, we review the factors that modulate mitochondrial architecture.
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Affiliation(s)
- Juan Pablo Muñoz
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
- Institut d’Investigació Biomèdica Sant Pau (IIB SANT PAU), 08041 Barcelona, Spain
| | - Fernanda Luisa Basei
- Faculdade de Ciências Farmacêuticas, Universidade Estadual de Campinas, 13083-871 Campinas, SP, Brazil
| | - María Laura Rojas
- Centro de Investigaciones en Bioquímica Clínica e Inmunología (CIBICI), Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba X5000HUA, Argentina
| | - David Galvis
- Programa de Química Farmacéutica, Universidad CES, Medellín 050031, Colombia
| | - Antonio Zorzano
- CIBER de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28029 Madrid, Spain
- Institute for Research in Biomedicine (IRB Barcelona), 08028 Barcelona, Spain
- Departament de Bioquímica i Biomedicina Molecular, Facultat de Biologia, Universitat de Barcelona, 08028 Barcelona, Spain
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19
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Zhang C, Gao X, Li M, Yu X, Huang F, Wang Y, Yan Y, Zhang H, Shi Y, He X. The role of mitochondrial quality surveillance in skin aging: Focus on mitochondrial dynamics, biogenesis and mitophagy. Ageing Res Rev 2023; 87:101917. [PMID: 36972842 DOI: 10.1016/j.arr.2023.101917] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/08/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023]
Abstract
The skin is the largest organ of the human body and the first line of defense against environmental hazards. Many factors, including internal factors such as natural aging and external factors such as ultraviolet radiation and air pollution, can lead to skin aging. Mitochondria provide sufficient energy to maintain the high-speed turnover capacity of the skin, so the quality control of mitochondria plays an indispensable role in this process. Mitochondrial dynamics, mitochondrial biogenesis and mitophagy are the key steps in mitochondrial quality surveillance. They are coordinated to maintain mitochondrial homeostasis and restore damaged mitochondrial function. All of the mitochondrial quality control processes are related to skin aging caused by various factors. Therefore, fine-tuning regulation of the above process is of great significance to the skin aging problem that needs to be solved urgently. This article mainly reviews the physiological and environmental factors causing skin aging, the effects of mitochondrial dynamics, mitochondrial biogenesis and mitophagy on skin aging, as well as their specific regulatory mechanisms. Finally, mitochondrial biomarkers for diagnosis of skin aging, and therapeutic approaches of skin aging via mitochondrial quality control were illustrated.
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Affiliation(s)
- Chang Zhang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Xingyu Gao
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Minghe Li
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Xiao Yu
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Fanke Huang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Yiming Wang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Yueqi Yan
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Haiying Zhang
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Yingai Shi
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Xu He
- Key Laboratory of Pathobiology, Ministry of Education, College of Basic Medical Sciences, Jilin University, Changchun 130021, China.
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The Drp1-Mediated Mitochondrial Fission Protein Interactome as an Emerging Core Player in Mitochondrial Dynamics and Cardiovascular Disease Therapy. Int J Mol Sci 2023; 24:ijms24065785. [PMID: 36982862 PMCID: PMC10057413 DOI: 10.3390/ijms24065785] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023] Open
Abstract
Mitochondria, the membrane-bound cell organelles that supply most of the energy needed for cell function, are highly regulated, dynamic organelles bearing the ability to alter both form and functionality rapidly to maintain normal physiological events and challenge stress to the cell. This amazingly vibrant movement and distribution of mitochondria within cells is controlled by the highly coordinated interplay between mitochondrial dynamic processes and fission and fusion events, as well as mitochondrial quality-control processes, mainly mitochondrial autophagy (also known as mitophagy). Fusion connects and unites neighboring depolarized mitochondria to derive a healthy and distinct mitochondrion. In contrast, fission segregates damaged mitochondria from intact and healthy counterparts and is followed by selective clearance of the damaged mitochondria via mitochondrial specific autophagy, i.e., mitophagy. Hence, the mitochondrial processes encompass all coordinated events of fusion, fission, mitophagy, and biogenesis for sustaining mitochondrial homeostasis. Accumulated evidence strongly suggests that mitochondrial impairment has already emerged as a core player in the pathogenesis, progression, and development of various human diseases, including cardiovascular ailments, the leading causes of death globally, which take an estimated 17.9 million lives each year. The crucial factor governing the fission process is the recruitment of dynamin-related protein 1 (Drp1), a GTPase that regulates mitochondrial fission, from the cytosol to the outer mitochondrial membrane in a guanosine triphosphate (GTP)-dependent manner, where it is oligomerized and self-assembles into spiral structures. In this review, we first aim to describe the structural elements, functionality, and regulatory mechanisms of the key mitochondrial fission protein, Drp1, and other mitochondrial fission adaptor proteins, including mitochondrial fission 1 (Fis1), mitochondrial fission factor (Mff), mitochondrial dynamics 49 (Mid49), and mitochondrial dynamics 51 (Mid51). The core area of the review focuses on the recent advances in understanding the role of the Drp1-mediated mitochondrial fission adaptor protein interactome to unravel the missing links of mitochondrial fission events. Lastly, we discuss the promising mitochondria-targeted therapeutic approaches that involve fission, as well as current evidence on Drp1-mediated fission protein interactions and their critical roles in the pathogeneses of cardiovascular diseases (CVDs).
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Torres AK, Jara C, Llanquinao J, Lira M, Cortés-Díaz D, Tapia-Rojas C. Mitochondrial Bioenergetics, Redox Balance, and Calcium Homeostasis Dysfunction with Defective Ultrastructure and Quality Control in the Hippocampus of Aged Female C57BL/6J Mice. Int J Mol Sci 2023; 24:ijms24065476. [PMID: 36982549 PMCID: PMC10056753 DOI: 10.3390/ijms24065476] [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: 02/01/2023] [Revised: 02/27/2023] [Accepted: 03/03/2023] [Indexed: 03/15/2023] Open
Abstract
Aging is a physiological process that generates progressive decline in many cellular functions. There are many theories of aging, and one of great importance in recent years is the mitochondrial theory of aging, in which mitochondrial dysfunction that occurs at advanced age could be responsible for the aged phenotype. In this context, there is diverse information about mitochondrial dysfunction in aging, in different models and different organs. Specifically, in the brain, different studies have shown mitochondrial dysfunction mainly in the cortex; however, until now, no study has shown all the defects in hippocampal mitochondria in aged female C57BL/6J mice. We performed a complete analysis of mitochondrial function in 3-month-old and 20-month-old (mo) female C57BL/6J mice, specifically in the hippocampus of these animals. We observed an impairment in bioenergetic function, indicated by a decrease in mitochondrial membrane potential, O2 consumption, and mitochondrial ATP production. Additionally, there was an increase in ROS production in the aged hippocampus, leading to the activation of antioxidant signaling, specifically the Nrf2 pathway. It was also observed that aged animals had deregulation of calcium homeostasis, with more sensitive mitochondria to calcium overload and deregulation of proteins related to mitochondrial dynamics and quality control processes. Finally, we observed a decrease in mitochondrial biogenesis with a decrease in mitochondrial mass and deregulation of mitophagy. These results show that during the aging process, damaged mitochondria accumulate, which could contribute to or be responsible for the aging phenotype and age-related disabilities.
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Affiliation(s)
- Angie K. Torres
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
| | - Claudia Jara
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
| | - Jesús Llanquinao
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
| | - Matías Lira
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
- Centro Científico y Tecnológico de Excelencia Ciencia & Vida, Avda. Zañartu 1482, Ñuñoa, Santiago 7780272, Chile
| | - Daniela Cortés-Díaz
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
| | - Cheril Tapia-Rojas
- Laboratory of Neurobiology of Aging, Centro de Biología Celular y Biomedicina (CEBICEM), Universidad San Sebastián, Santiago 7510156, Chile
- Centro Científico y Tecnológico de Excelencia Ciencia & Vida, Avda. Zañartu 1482, Ñuñoa, Santiago 7780272, Chile
- Correspondence:
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22
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Wang H, Lin H, Kang W, Huang L, Gong S, Zhang T, Huang X, He F, Ye Y, Tang Y, Jia H, Yang H. miR-34a/DRP-1-mediated mitophagy participated in cisplatin-induced ototoxicity via increasing oxidative stress. BMC Pharmacol Toxicol 2023; 24:16. [PMID: 36882858 PMCID: PMC9993635 DOI: 10.1186/s40360-023-00654-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 02/21/2023] [Indexed: 03/09/2023] Open
Abstract
PURPOSE Cisplatin is a widely used and effective chemotherapeutic agent for most solid malignant tumors. However, cisplatin-induced ototoxicity is a common adverse effect that limits the therapeutic efficacy of tumors in the clinic. To date, the specific mechanism of ototoxicity has not been fully elucidated, and the management of cisplatin-induced ototoxicity is also an urgent challenge. Recently, some authors believed that miR34a and mitophagy played a role in age-related and drug-induced hearing loss. Our study aimed to explore the involvement of miR-34a/DRP-1-mediated mitophagy in cisplatin-induced ototoxicity. METHODS In this study, C57BL/6 mice and HEI-OC1 cells were treated with cisplatin. MiR-34a and DRP-1 levels were analyzed by qRT‒PCR and western blotting, and mitochondrial function was assessed via oxidative stress, JC-1 and ATP content. Subsequently, we detected DRP-1 levels and observed mitochondrial function by modulating miR-34a expression in HEI-OC1 cells to determine the effect of miR-34a on DRP-1-mediated mitophagy. RESULTS MiR-34a expression increased and DRP-1 levels decreased in C57BL/6 mice and HEI-OC1 cells treated with cisplatin, and mitochondrial dysfunction was involved in this process. Furthermore, the miR-34a mimic decreased DRP-1 expression, enhanced cisplatin-induced ototoxicity and aggravated mitochondrial dysfunction. We further verified that the miR-34a inhibitor increased DRP-1 expression, partially protected against cisplatin-induced ototoxicity and improved mitochondrial function. CONCLUSION MiR-34a/DRP-1-mediated mitophagy was related to cisplatin-induced ototoxicity and might be a novel target for investigating the treatment and protection of cisplatin-induced ototoxicity.
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Affiliation(s)
- Haiyan Wang
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Hanqing Lin
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Weibiao Kang
- Department of Otolaryngology, the 2nd hospital, Medical College, Shantou University, Shantou, Guangdong, China
| | - Lingfei Huang
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Sisi Gong
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Tao Zhang
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Xiaotong Huang
- Department of Otolaryngology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 West Yan Jiang Road, Guangzhou, 510120, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Feinan He
- Department of Otolaryngology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 West Yan Jiang Road, Guangzhou, 510120, China.,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Yongyi Ye
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China.,Department of Hearing and Speech Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China
| | - Yiyang Tang
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China
| | - Haiying Jia
- Department of Otolaryngology, the First Affiliated Hospital of Jinan University, No.613, West Huangpu Avenue, Guangzhou, 510630, China.
| | - Haidi Yang
- Department of Otolaryngology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, 107 West Yan Jiang Road, Guangzhou, 510120, China. .,Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Medical Research Center, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, China. .,Department of Hearing and Speech Science, Xinhua College, Sun Yat-Sen University, Guangzhou, China.
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23
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Mohammadi E, Nikbakht F, Barati M, Roghani M, Vazifekhah S, Khanizadeh AM, Heidari Z. Protective effect of N-acetyl cysteine on the mitochondrial dynamic imbalance in temporal lobe epilepsy: Possible role of mTOR. Neuropeptides 2022; 96:102294. [PMID: 36270032 DOI: 10.1016/j.npep.2022.102294] [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: 07/27/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 11/07/2022]
Abstract
Understanding the underlying molecular mechanisms involved in epilepsy is critical for the development of more effective therapies. It is believed that mTOR (Mechanistic Target of Rapamycin kinases) activity and the mitochondrial dynamic balance change during epilepsy. mTOR affects mitochondrial fission by stimulating the translation of mitochondrial fission process 1 (MTFP1). In This study, the protective role of N-acetylcysteine was studied in temporal lobe epilepsy (TLE) through the regulation of mTOR and mitochondrial dynamic proteins. Rats received N-acetylcysteine (oral administration) seven days before induction of epilepsy, followed by one day after epilepsy. TLE was induced by microinjection of kainite into the left lateral ventricle. The total mTOR and Drp1 levels in the hippocampus were evaluated by western blotting. MFN1 was assessed using immunohistochemistry, and the expression of Fis.1 and MTFP1 (fission-related proteins) and OPA (fusion-related protein) were detected by real-time PCR. The mitochondrial membrane potential was measured by Rhodamin 123. The results showed that 72 h after induction of epilepsy, the mTOR protein level increased, and the balance of the mitochondrial dynamic was disturbed; however, oral administration of NAC decreased the mTOR protein level and improved the mitochondrial dynamic. These findings indicate that NAC plays a neuroprotective role in temporal lobe epilepsy, probably through decreasing the mTOR protein level, which can improve the imbalance in the mitochondrial dynamic.
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Affiliation(s)
- Ekram Mohammadi
- Cellular and Molecular Research Center and Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farnaz Nikbakht
- Cellular and Molecular Research Center and Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
| | - Mahmoud Barati
- Department of Medical Biotechnology, School of Allied Medical Sciences, Iran University of Medical Sciences, Iran
| | - Mehrdad Roghani
- Neurophysiology Research Center, Shahed University, Tehran, Iran
| | - Somayeh Vazifekhah
- Cellular and Molecular Research Center and Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ali Mohammad Khanizadeh
- Cellular and Molecular Research Center and Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Heidari
- Cellular and Molecular Research Center and Department of Physiology, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
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24
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Shi M, Dong Z, Zhao K, He X, Sun Y, Ren J, Ge W. Novel insights into exhaustive exercise-induced myocardial injury: Focusing on mitochondrial quality control. Front Cardiovasc Med 2022; 9:1015639. [PMID: 36312267 PMCID: PMC9613966 DOI: 10.3389/fcvm.2022.1015639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 09/16/2022] [Indexed: 11/13/2022] Open
Abstract
Regular moderate-intensity exercise elicits benefit cardiovascular health outcomes. However, exhaustive exercise (EE) triggers arrhythmia, heart failure, and sudden cardiac death. Therefore, a better understanding of unfavorable heart sequelae of EE is important. Various mechanisms have been postulated for EE-induced cardiac injury, among which mitochondrial dysfunction is considered the cardinal machinery for pathogenesis of various diseases. Mitochondrial quality control (MQC) is critical for clearance of long-lived or damaged mitochondria, regulation of energy metabolism and cell apoptosis, maintenance of cardiac homeostasis and alleviation of EE-induced injury. In this review, we will focus on MQC mechanisms and propose mitochondrial pathophysiological targets for the management of EE-induced myocardial injury. A thorough understanding of how MQC system functions in the maintenance of mitochondrial homeostasis will provide a feasible rationale for developing potential therapeutic interventions for EE-induced injury.
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Affiliation(s)
- Mingyue Shi
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Zhao Dong
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kai Zhao
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaole He
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yang Sun
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jun Ren
- Department of Cardiology, Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China,Jun Ren
| | - Wei Ge
- Department of General Practice, Xijing Hospital, Fourth Military Medical University, Xi'an, China,*Correspondence: Wei Ge
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25
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Cantanhede IG, Liu H, Liu H, Balbuena Rodriguez V, Shiwen X, Ong VH, Denton CP, Ponticos M, Xiong G, Lima-Filho JL, Abraham D, Abu-Hanna J, Taanman JW. Exploring metabolism in scleroderma reveals opportunities for pharmacological intervention for therapy in fibrosis. Front Immunol 2022; 13:1004949. [PMID: 36304460 PMCID: PMC9592691 DOI: 10.3389/fimmu.2022.1004949] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 09/26/2022] [Indexed: 12/04/2022] Open
Abstract
Background Recent evidence has indicated that alterations in energy metabolism play a critical role in the pathogenesis of fibrotic diseases. Studies have suggested that ‘metabolic reprogramming’ involving the glycolysis and oxidative phosphorylation (OXPHOS) in cells lead to an enhanced generation of energy and biosynthesis. The aim of this study was to assess the molecular basis of changes in fibrotic metabolism in systemic sclerosis (Scleroderma; SSc) and highlight the most appropriate targets for anti-fibrotic therapies. Materials and methods Dermal fibroblasts were isolated from five SSc patients and five healthy donors. Cells were cultured in medium with/without TGF-β1 and with/without ALK5, pan-PIM or ATM kinase inhibitors. Extracellular flux analyses were performed to evaluate glycolytic and mitochondrial respiratory function. The mitochondrial network in TMRM-stained cells was visualized by confocal laser-scanning microscopy, followed by semi-automatic analysis on the ImageJ platform. Protein expression of ECM and fibroblast components, glycolytic enzymes, subunits of the five OXPHOS complexes, and dynamin-related GTPases and receptors involved in mitochondrial fission/fusion were assessed by western blotting. Results Enhanced mitochondrial respiration coupled to ATP production was observed in SSc fibroblasts at the expense of spare respiratory capacity. Although no difference was found in glycolysis when comparing SSc with healthy control fibroblasts, levels of phophofructokinase-1 isoform PFKM were significantly lower in SSc fibroblasts (P<0.05). Our results suggest that the number of respirasomes is decreased in the SSc mitochondria; however, the organelles formed a hyperfused network, which is thought to increase mitochondrial ATP production through complementation. The increased mitochondrial fusion correlated with a change in expression levels of regulators of mitochondrial morphology, including decreased levels of DRP1, increased levels of MIEF2 and changes in OPA1 isoform ratios. TGF-β1 treatment strongly stimulated glycolysis and mitochondrial respiration and induced the expression of fibrotic markers. The pan-PIM kinase inhibitor had no effect, whereas both ALK5 and ATM kinase inhibition abrogated TGF-β1-mediated fibroblast activation, and upregulation of glycolysis and respiration. Conclusions Our data provide evidence for a novel mechanism(s) by which SSc fibroblasts exhibit altered metabolic programs and highlight changes in respiration and dysregulated mitochondrial morphology and function, which can be selectively targeted by small molecule kinase inhibitors.
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Affiliation(s)
- Isabella Gomes Cantanhede
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Brazil
| | - Huan Liu
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
- Health Science Center, Xi’an Jiaotong University, Xi’an, China
| | - Huan Liu
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Vestaen Balbuena Rodriguez
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Xu Shiwen
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Voo H. Ong
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Christopher P. Denton
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Markella Ponticos
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Guo Xiong
- Health Science Center, Xi’an Jiaotong University, Xi’an, China
| | - José Luiz Lima-Filho
- Laboratory of Immunopathology Keizo Asami, Federal University of Pernambuco, Recife, Brazil
| | - David Abraham
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
- *Correspondence: David Abraham, ; Jan-Willem Taanman,
| | - Jeries Abu-Hanna
- Centre for Rheumatology and Connective Tissue Diseases, Division of Medicine, University College London, London, United Kingdom
| | - Jan-Willem Taanman
- Department of Clinical and Movement Neurosciences, Queen Square Institute of Neurology, University College London, London, United Kingdom
- *Correspondence: David Abraham, ; Jan-Willem Taanman,
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Xing J, Qi L, Liu X, Shi G, Sun X, Yang Y. Roles of mitochondrial fusion and fission in breast cancer progression: a systematic review. World J Surg Oncol 2022; 20:331. [PMID: 36192752 PMCID: PMC9528125 DOI: 10.1186/s12957-022-02799-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 09/24/2022] [Indexed: 12/02/2022] Open
Abstract
Background Mitochondria play critical roles in cellular physiological activity as cellular organelles. Under extracellular stimulation, mitochondria undergo constant fusion and fission to meet different cellular demands. Mitochondrial dynamics, which are involved in mitochondrial fusion and fission, are regulated by specialized proteins and lipids, and their dysregulation causes human diseases, such as cancer. The advanced literature about the crucial role of mitochondrial dynamics in breast cancer is performed. Methods All related studies were systematically searched through online databases (PubMed, Web of Science, and EMBASE) using keywords (e.g., breast cancer, mitochondrial, fission, and fusion), and these studies were then screened through the preset inclusion and exclusion criteria. Results Eligible studies (n = 19) were evaluated and discussed in the systematic review. These advanced studies established the roles of mitochondrial fission and fusion of breast cancer in the metabolism, proliferation, survival, and metastasis. Importantly, the manipulating of mitochondrial dynamic is significant for the progresses of breast cancer. Conclusion Understanding the mechanisms underlying mitochondrial fission and fusion during tumorigenesis is important for improving breast cancer treatments.
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Affiliation(s)
- Jixiang Xing
- First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Luyao Qi
- The Seventh People's Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, 200137, China
| | - Xiaofei Liu
- Department of Breast and Thyroid, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Guangxi Shi
- Department of Breast and Thyroid, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Xiaohui Sun
- Department of Breast and Thyroid, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China
| | - Yi Yang
- Department of Breast and Thyroid, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
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27
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Zhang J, Huang J, Lin X, Fei K, Xie Y, Peng Q, Li X, Xie L, Dai L, Zhang W. Phosphoglycerate mutase 5 promotes necroptosis in trophoblast cells through activation of dynamin-related protein 1 in early-onset preeclampsia. Am J Reprod Immunol 2022; 87:e13539. [PMID: 35304783 DOI: 10.1111/aji.13539] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Revised: 02/01/2022] [Accepted: 03/12/2022] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES Placentae from patients with preeclampsia have increased susceptibility to necroptosis and phosphoglycerate mutase 5 (PGAM5) plays a role in many necrosis pathways. We determined whether PGAM5 promotes necroptosis of trophoblast cells and the underlying mechanisms in this study. METHODS The injury model was established by treating JEG3 cells with hypoxia for 24 h. The functional measurements were assessed by the cell counting kit-8, propidium iodide (PI)/Annexin V staining, JC-1 staining and firefly luciferase ATP assay. The expression of proteins in human placentae and JEG3 cells was measured Western blot. PGAM5 was knocked down to study its role in hypoxia-induced necroptosis. RESULTS The placentae from patients with preeclampsia showed up-regulation of PGAM5 and decreased levels of p-Drp1-S637, accompanied by increased necroptosis-relevant proteins expression. The expression of PGAM5 in JEG3 cells was up-regulated under hypoxia, which promoted dephosphorylation of Drp1 at Serine 637 residue, mitochondrial dysfunction (elevated ROS level and reduced mitochondrial membrane potential and ATP content) and cellular necroptosis (increased PI+ /Annexin V+ cells and decreased cell viability), accompanied by increased expression of necroptosis-relevant proteins; knockdown of PGAM5 attenuated these phenomena. CONCLUSIONS Our results indicate that PGAM5 can promote necroptosis in trophoblast cells through, at least in part, activation of Drp1. It may be used as a new therapeutic target to prevent trophoblast dysfunction in preeclampsia.
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Affiliation(s)
- Jiejie Zhang
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
| | - Jingrui Huang
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Xinxiu Lin
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Kuilin Fei
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Yingming Xie
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Qiaozhen Peng
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Xun Li
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Liangqun Xie
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Lei Dai
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China
| | - Weishe Zhang
- Department of Obstetrics, Xiangya Hospital, Central South University, Changsha, China.,Hunan Engineering Research Center of Early Life Development and Disease Prevention, Changsha, China
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28
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Chen Y, Hamidu S, Yang X, Yan Y, Wang Q, Li L, Oduro PK, Li Y. Dietary Supplements and Natural Products: An Update on Their Clinical Effectiveness and Molecular Mechanisms of Action During Accelerated Biological Aging. Front Genet 2022; 13:880421. [PMID: 35571015 PMCID: PMC9096086 DOI: 10.3389/fgene.2022.880421] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Accepted: 04/04/2022] [Indexed: 12/11/2022] Open
Abstract
Accelerated biological aging, which involves the gradual decline of organ or tissue functions and the distortion of physiological processes, underlies several human diseases. Away from the earlier free radical concept, telomere attrition, cellular senescence, proteostasis loss, mitochondrial dysfunction, stem cell exhaustion, and epigenetic and genomic alterations have emerged as biological hallmarks of aging. Moreover, nutrient-sensing metabolic pathways are critical to an organism's ability to sense and respond to nutrient levels. Pharmaceutical, genetic, and nutritional interventions reverting physiological declines by targeting nutrient-sensing metabolic pathways can promote healthy aging and increase lifespan. On this basis, biological aging hallmarks and nutrient-sensing dependent and independent pathways represent evolving drug targets for many age-linked diseases. Here, we discuss and update the scientific community on contemporary advances in how dietary supplements and natural products beneficially revert accelerated biological aging processes to retrograde human aging and age-dependent human diseases, both from the clinical and preclinical studies point-of-view. Overall, our review suggests that dietary/natural products increase healthspan-rather than lifespan-effectively minimizing the period of frailty at the end of life. However, real-world setting clinical trials and basic studies on dietary supplements and natural products are further required to decisively demonstrate whether dietary/natural products could promote human lifespan.
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Affiliation(s)
- Ye Chen
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Sherif Hamidu
- Clinical Pathology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - Xintong Yang
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yiqi Yan
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qilong Wang
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Lin Li
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Patrick Kwabena Oduro
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
- Clinical Pathology Department, Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - Yuhong Li
- State Key Laboratory of Pharmacology of Modern Chinese Medicine, Department of Pharmacology and Toxicology, Institute of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, China
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Guo Z, Fan D, Liu FY, Ma SQ, An P, Yang D, Wang MY, Yang Z, Tang QZ. NEU1 Regulates Mitochondrial Energy Metabolism and Oxidative Stress Post-myocardial Infarction in Mice via the SIRT1/PGC-1 Alpha Axis. Front Cardiovasc Med 2022; 9:821317. [PMID: 35548408 PMCID: PMC9081506 DOI: 10.3389/fcvm.2022.821317] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 03/22/2022] [Indexed: 12/11/2022] Open
Abstract
Objective Neuraminidase 1 (NEU1) participates in the response to multiple receptor signals and regulates various cellular metabolic behaviors. Importantly, it is closely related to the occurrence and progression of cardiovascular diseases. Because ischemic heart disease is often accompanied by impaired mitochondrial energy metabolism and oxidative stress. The purpose of this study was to investigate the functions and possible mechanisms of NEU1 in myocardial remodeling and mitochondrial metabolism induced by myocardial infarction (MI). Methods In this study, the MI-induced mouse mode, hypoxia-treated H9C2 cells model, and hypoxia-treated neonatal rat cardiomyocytes (NRCMs) model were constructed. Echocardiography and histological analysis were adopted to evaluate the morphology and function of the heart at the whole heart level. Western blot was adopted to determine the related expression level of signaling pathway proteins and mitochondria. Mitochondrial energy metabolism and oxidative stress were detected by various testing kits. Results Neuraminidase 1 was markedly upregulated in MI cardiac tissue. Cardiomyocyte-specific NEU1 deficiency restored cardiac function, cardiac hypertrophy, and myocardial interstitial fibrosis. What is more, cardiomyocyte-specific NEU1 deficiency inhibited mitochondrial dysfunction and oxidative stress induced by MI. Further experiments found that the sirtuin-1/peroxisome proliferator-activated receptor γ coactivator α (SIRT1/PGC-1α) protein level in MI myocardium was down-regulated, which was closely related to the above-mentioned mitochondrial changes. Cardiomyocyte-specific NEU1 deficiency increased the expression of SIRT1, PGC-1α, and mitochondrial transcription factor A (TFAM); which improved mitochondrial metabolism and oxidative stress. Inhibition of SIRT1 activity or PGC-1α activity eliminated the beneficial effects of cardiomyocyte-specific NEU1 deficiency. PGC-1α knockout mice experiments verified that NEU1 inhibition restored cardiac function induced by MI through SIRT1/PGC-1α signaling pathway. Conclusion Cardiomyocyte-specific NEU1 deficiency can alleviate MI-induced myocardial remodeling, oxidative stress, and mitochondrial energy metabolism disorder. In terms of mechanism, the specific deletion of NEU1 may play a role by enhancing the SIRT1/PGC-1α signaling pathway. Therefore, cardiomyocyte-specific NEU1 may provide an alternative treatment strategy for heart failure post-MI.
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Affiliation(s)
- Zhen Guo
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Di Fan
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Fang-Yuan Liu
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Shu-Qing Ma
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Peng An
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Dan Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Min-Yu Wang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Zheng Yang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
| | - Qi-Zhu Tang
- Department of Cardiology, Renmin Hospital of Wuhan University, Wuhan, China
- Hubei Key Laboratory of Metabolic and Chronic Diseases, Wuhan, China
- *Correspondence: Qi-Zhu Tang
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Wang Y, Liu Q, Cai J, Wu P, Wang D, Shi Y, Huyan T, Su J, Li X, Wang Q, Wang H, Zhang F, Bae ON, Tie L. Emodin prevents renal ischemia-reperfusion injury via suppression of CAMKII/DRP1-mediated mitochondrial fission. Eur J Pharmacol 2022; 916:174603. [PMID: 34793771 DOI: 10.1016/j.ejphar.2021.174603] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 11/19/2022]
Abstract
Acute kidney injury (AKI) is a serious threat to human health. Clinically, ischemia-reperfusion (I/R) injury is considered one of the most common contributors to AKI. Emodin has been reported to alleviate I/R injury in the heart, brain, and small intestine in rats and mice through its anti-inflammatory effects. The present study investigated whether emodin improved AKI induced by I/R and elucidated the molecular mechanisms. We used a mouse model of renal I/R injury and human renal tubular epithelial cell model of hypoxia/reoxygenation (H/R) injury. Ischemia/reperfusion resulted in renal dysfunction. Pretreatment with emodin ameliorated renal injury in mice following I/R injury. Emodin reduced mitochondrial-mediated apoptosis, suppressed the overproduction of mitochondrial reactive oxygen species and accelerated the recovery of adenosine triphosphate both in vivo and in vitro. Emodin prevented mitochondrial fission and restored the balance of mitochondrial dynamics. The phosphorylation of dynamin-related protein 1 (DRP1) at Ser616, a master regulator of mitochondrial fission, was upregulated in both models of I/R and H/R injury, and this upregulation was blocked by emodin. Using computational cognate protein kinase prediction and specific kinase inhibitors, we found that emodin inhibited the phosphorylation of calcium/calmodulin-dependent protein kinase II (https://www.guidetopharmacology.org/GRAC/ObjectDisplayForward?objectId=1554), thereby inhibiting its kinase activity and reducing the phosphorylation of DRP1 at Ser616. The results demonstrated that emodin pretreatment could protect renal function by improving mitochondrial dysfunction induced by I/R.
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Affiliation(s)
- Yanqing Wang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China; Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Qian Liu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Jiaying Cai
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China; Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Pin Wu
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Di Wang
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Yundi Shi
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Tianru Huyan
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Jing Su
- Department of Pathology, School of Basic Medical Sciences, Peking University, Beijing, 100191, China
| | - Xuejun Li
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China
| | - Qi Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Hong Wang
- Science and Technology Innovation Center, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Fengxue Zhang
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, 510006, China
| | - Ok-Nam Bae
- College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, 15588, Republic of Korea
| | - Lu Tie
- Department of Pharmacology, School of Basic Medical Sciences, Peking University and Beijing Key Laboratory of Tumor Systems Biology, Peking University, Beijing, 100191, China.
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31
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Romani P, Nirchio N, Arboit M, Barbieri V, Tosi A, Michielin F, Shibuya S, Benoist T, Wu D, Hindmarch CCT, Giomo M, Urciuolo A, Giamogante F, Roveri A, Chakravarty P, Montagner M, Calì T, Elvassore N, Archer SL, De Coppi P, Rosato A, Martello G, Dupont S. Mitochondrial fission links ECM mechanotransduction to metabolic redox homeostasis and metastatic chemotherapy resistance. Nat Cell Biol 2022; 24:168-180. [PMID: 35165418 PMCID: PMC7615745 DOI: 10.1038/s41556-022-00843-w] [Citation(s) in RCA: 75] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 01/06/2022] [Indexed: 01/07/2023]
Abstract
Metastatic breast cancer cells disseminate to organs with a soft microenvironment. Whether and how the mechanical properties of the local tissue influence their response to treatment remains unclear. Here we found that a soft extracellular matrix empowers redox homeostasis. Cells cultured on a soft extracellular matrix display increased peri-mitochondrial F-actin, promoted by Spire1C and Arp2/3 nucleation factors, and increased DRP1- and MIEF1/2-dependent mitochondrial fission. Changes in mitochondrial dynamics lead to increased production of mitochondrial reactive oxygen species and activate the NRF2 antioxidant transcriptional response, including increased cystine uptake and glutathione metabolism. This retrograde response endows cells with resistance to oxidative stress and reactive oxygen species-dependent chemotherapy drugs. This is relevant in a mouse model of metastatic breast cancer cells dormant in the lung soft tissue, where inhibition of DRP1 and NRF2 restored cisplatin sensitivity and prevented disseminated cancer-cell awakening. We propose that targeting this mitochondrial dynamics- and redox-based mechanotransduction pathway could open avenues to prevent metastatic relapse.
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Affiliation(s)
- Patrizia Romani
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy
| | - Nunzia Nirchio
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy
| | - Mattia Arboit
- Department of Biology (DiBio), University of Padua, Padua, Italy
| | - Vito Barbieri
- Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, Padua, Italy
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Anna Tosi
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | - Federica Michielin
- Institute of Child Health, NIHR Biomedical Research Centre, Great Ormond Street Institute of Child Health, UCL, London, UK
| | - Soichi Shibuya
- Institute of Child Health, NIHR Biomedical Research Centre, Great Ormond Street Institute of Child Health, UCL, London, UK
| | - Thomas Benoist
- Institute of Child Health, NIHR Biomedical Research Centre, Great Ormond Street Institute of Child Health, UCL, London, UK
| | - Danchen Wu
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | | | - Monica Giomo
- Department of Industrial Engineering (DII), University of Padua, Padua, Italy
- Venetian Institute of Molecular Medicine (VIMM), Padua, Italy
| | - Anna Urciuolo
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy
- Fondazione Istituto di Ricerca Pediatrica (IRP), Città della Speranza, Padua, Italy
| | - Flavia Giamogante
- Department of Biomedical Sciences (DSB), University of Padua, Padua, Italy
| | - Antonella Roveri
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy
| | | | - Marco Montagner
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy
| | - Tito Calì
- Department of Biomedical Sciences (DSB), University of Padua, Padua, Italy
| | - Nicola Elvassore
- Institute of Child Health, NIHR Biomedical Research Centre, Great Ormond Street Institute of Child Health, UCL, London, UK
- Department of Industrial Engineering (DII), University of Padua, Padua, Italy
- Venetian Institute of Molecular Medicine (VIMM), Padua, Italy
| | - Stephen L Archer
- Department of Medicine, Queen's University, Kingston, Ontario, Canada
| | - Paolo De Coppi
- Institute of Child Health, NIHR Biomedical Research Centre, Great Ormond Street Institute of Child Health, UCL, London, UK
| | - Antonio Rosato
- Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padua, Padua, Italy
- Veneto Institute of Oncology IOV-IRCCS, Padua, Italy
| | | | - Sirio Dupont
- Department of Molecular Medicine (DMM), University of Padua, Padua, Italy.
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Yang M, He Y, Deng S, Xiao L, Tian M, Xin Y, Lu C, Zhao F, Gong Y. Mitochondrial Quality Control: A Pathophysiological Mechanism and Therapeutic Target for Stroke. Front Mol Neurosci 2022; 14:786099. [PMID: 35153669 PMCID: PMC8832032 DOI: 10.3389/fnmol.2021.786099] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 12/21/2021] [Indexed: 12/15/2022] Open
Abstract
Stroke is a devastating disease with high mortality and disability rates. Previous research has established that mitochondria, as major regulators, are both influenced by stroke, and further regulated the development of poststroke injury. Mitochondria are involved in several biological processes such as energy generation, calcium homeostasis, immune response, apoptosis regulation, and reactive oxygen species (ROS) generation. Meanwhile, mitochondria can evolve into various quality control systems, including mitochondrial dynamics (fission and fusion) and mitophagy, to maintain the homeostasis of the mitochondrial network. Various activities of mitochondrial fission and fusion are associated with mitochondrial integrity and neurological injury after stroke. Additionally, proper mitophagy seems to be neuroprotective for its effect on eliminating the damaged mitochondria, while excessive mitophagy disturbs energy generation and mitochondria-associated signal pathways. The balance between mitochondrial dynamics and mitophagy is more crucial than the absolute level of each process. A neurovascular unit (NVU) is a multidimensional system by which cells release multiple mediators and regulate diverse signaling pathways across the whole neurovascular network in a way with a high dynamic interaction. The turbulence of mitochondrial quality control (MQC) could lead to NVU dysfunctions, including neuron death, neuroglial activation, blood–brain barrier (BBB) disruption, and neuroinflammation. However, the exact changes and effects of MQC on the NVU after stroke have yet to be fully illustrated. In this review, we will discuss the updated mechanisms of MQC and the pathophysiology of mitochondrial dynamics and mitophagy after stroke. We highlight the regulation of MQC as a potential therapeutic target for both ischemic and hemorrhagic stroke.
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Affiliation(s)
- Miaoxian Yang
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yu He
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Shuixiang Deng
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Lei Xiao
- The State Key Laboratory of Medical Neurobiology, MOE Frontiers Center for Brain Science, The Institutes of Brain Science, Fudan University, Shanghai, China
| | - Mi Tian
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Yuewen Xin
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Chaocheng Lu
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Feng Zhao
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
- *Correspondence: Feng Zhao,
| | - Ye Gong
- Department of Critical Care Medicine, Huashan Hospital, Fudan University, Shanghai, China
- Department of Neurosurgery, Huashan Hospital, Fudan University, Shanghai, China
- Ye Gong,
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33
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Huang CX, Jiang ZX, Du DY, Zhang ZM, Liu Y, Li YT. The MFF-SIRT1/3 axis, regulated by miR-340-5p, restores mitochondrial homeostasis of hypoxia-induced pulmonary artery smooth muscle cells. J Transl Med 2022; 102:515-523. [PMID: 35042949 PMCID: PMC9042702 DOI: 10.1038/s41374-022-00730-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 12/15/2021] [Accepted: 12/21/2021] [Indexed: 12/24/2022] Open
Abstract
Mitochondrial dynamics and quality control play a central role in the maintenance of the proliferation-apoptosis balance, which is closely related to the progression of pulmonary arterial hypertension (PAH). However, the exact mechanism of this balance remains unknown. Pulmonary artery smooth muscle cells (PASMCs) were cultured in hypoxia condition for constructing a PAH model in vitro. The expression of genes and proteins were determined by qRT-PCR and western bolt assays. Cell proliferation-apoptosis balance were tested by MTT, EdU and TUNEL assays. The mitochondrial functions were assessed by flow cytometry, JC-1, Mito tracker red staining, and corresponding kits. Besides, the molecular interaction was validated by dual-luciferase reporter assay. MFF was overexpressed in hypoxia-treated PAMSCs. Knockdown of MFF significantly repressed the excessive proliferation but enhanced cell apoptosis in hypoxia-treated PAMSCs. Moreover, MFF silencing improved mitochondrial function of hypoxia-treated PAMSCs by increasing ATP production and decreasing ROS release and mitochondrial fission. Mechanistically, MFF was a directly target of miR-340-5p, and could negatively regulate SIRT1/3 expression. Subsequently, functional rescue assays showed that the biological effects of MFF in hypoxia-treated PAMSCs were negatively regulated by miR-340-5p and depended on the regulation on SIRT1/3 pathway. These results provided evidences that miR-340-5p regulated MFF-SIRT1/3 axis to improve mitochondrial homeostasis and proliferation-apoptosis imbalance of hypoxia-treated PAMSCs, which provided a theoretical basis for the prevention and treatment of PAH.
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Affiliation(s)
- Chun-Xia Huang
- grid.284723.80000 0000 8877 7471The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong Province PR China
| | - Zhi-Xin Jiang
- grid.414252.40000 0004 1761 8894Department of Cardiology, 305 Hospital of PLA, Beijing, PR China
| | - Da-Yong Du
- grid.414252.40000 0004 1761 8894Department of Cardiology, 305 Hospital of PLA, Beijing, PR China
| | - Zhi-Min Zhang
- grid.263452.40000 0004 1798 4018Linfen Peoples’ Hospital, Shanxi Medical University, Linfen, Shanxi Province PR China
| | - Yang Liu
- grid.414252.40000 0004 1761 8894Department of Cardiology, 305 Hospital of PLA, Beijing, PR China
| | - Yun-Tian Li
- The Second School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong Province, PR China. .,Department of Cardiology, 305 Hospital of PLA, Beijing, PR China.
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Guo C, Hildick KL, Jiang J, Zhao A, Guo W, Henley JM, Wilkinson KA. SENP3 Promotes an Mff-Primed Bcl-x L -Drp1 Interaction Involved in Cell Death Following Ischemia. Front Cell Dev Biol 2021; 9:752260. [PMID: 34722538 PMCID: PMC8555761 DOI: 10.3389/fcell.2021.752260] [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: 08/02/2021] [Accepted: 09/17/2021] [Indexed: 11/13/2022] Open
Abstract
Dysregulation of the mitochondrial fission machinery has been linked to cell death following ischemia. Fission is largely dependent on recruitment of Dynamin-related protein 1 (Drp1) to the receptor Mitochondrial fission factor (Mff) located on the mitochondrial outer membrane (MOM). Drp1 is a target for SUMOylation and its deSUMOylation, mediated by the SUMO protease SENP3, enhances the Drp1-Mff interaction to promote cell death in an oxygen/glucose deprivation (OGD) model of ischemia. Another interacting partner for Drp1 is the Bcl-2 family member Bcl-x L , an important protein in cell death and survival pathways. Here we demonstrate that preventing Drp1 SUMOylation by mutating its SUMO target lysines enhances the Drp1-Bcl-x L interaction in vivo and in vitro. Moreover, SENP3-mediated deSUMOylation of Drp1 promotes the Drp1-Bcl-x L interaction. Our data suggest that Mff primes Drp1 binding to Bcl-x L at the mitochondria and that Mff and Bcl-x L can interact directly, independent of Drp1, through their transmembrane domains. Importantly, SENP3 loss in cells subjected to OGD correlates with reduced Drp1-Bcl-x L interaction, whilst recovery of SENP3 levels in cells subjected to reoxygenation following OGD correlates with increased Drp1-Bcl-x L interaction. Expressing a Bcl-x L mutant with defective Drp1 binding reduces OGD plus reoxygenation-evoked cell death. Taken together, our results indicate that SENP3-mediated deSUMOlyation promotes an Mff-primed Drp1-Bcl-x L interaction that contributes to cell death following ischemia.
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Affiliation(s)
- Chun Guo
- School of Biosciences, University of Sheffield, Sheffield, United Kingdom
| | - Keri L Hildick
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
| | - Juwei Jiang
- School of Biosciences, University of Sheffield, Sheffield, United Kingdom
| | - Alice Zhao
- School of Biosciences, University of Sheffield, Sheffield, United Kingdom
| | - Wenbin Guo
- School of Medical Sciences, University of Manchester, Manchester, United Kingdom
| | - Jeremy M Henley
- School of Biochemistry, University of Bristol, Bristol, United Kingdom.,Faculty of Science, Centre for Neuroscience and Regenerative Medicine, University of Technology Sydney, Ultimo, NSW, Australia
| | - Kevin A Wilkinson
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
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35
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Cdk8 Kinase Module: A Mediator of Life and Death Decisions in Times of Stress. Microorganisms 2021; 9:microorganisms9102152. [PMID: 34683473 PMCID: PMC8540245 DOI: 10.3390/microorganisms9102152] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 01/18/2023] Open
Abstract
The Cdk8 kinase module (CKM) of the multi-subunit mediator complex plays an essential role in cell fate decisions in response to different environmental cues. In the budding yeast S. cerevisiae, the CKM consists of four conserved subunits (cyclin C and its cognate cyclin-dependent kinase Cdk8, Med13, and Med12) and predominantly negatively regulates a subset of stress responsive genes (SRG’s). Derepression of these SRG’s is accomplished by disassociating the CKM from the mediator, thus allowing RNA polymerase II-directed transcription. In response to cell death stimuli, cyclin C translocates to the mitochondria where it induces mitochondrial hyper-fission and promotes regulated cell death (RCD). The nuclear release of cyclin C requires Med13 destruction by the ubiquitin-proteasome system (UPS). In contrast, to protect the cell from RCD following SRG induction induced by nutrient deprivation, cyclin C is rapidly destroyed by the UPS before it reaches the cytoplasm. This enables a survival response by two mechanisms: increased ATP production by retaining reticular mitochondrial morphology and relieving CKM-mediated repression on autophagy genes. Intriguingly, nitrogen starvation also stimulates Med13 destruction but through a different mechanism. Rather than destruction via the UPS, Med13 proteolysis occurs in the vacuole (yeast lysosome) via a newly identified Snx4-assisted autophagy pathway. Taken together, these findings reveal that the CKM regulates cell fate decisions by both transcriptional and non-transcriptional mechanisms, placing it at a convergence point between cell death and cell survival pathways.
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36
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Liu J, Song X, Yan Y, Liu B. Role of GTPase-Dependent Mitochondrial Dynamins in Heart Diseases. Front Cardiovasc Med 2021; 8:720085. [PMID: 34660720 PMCID: PMC8514750 DOI: 10.3389/fcvm.2021.720085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Accepted: 09/06/2021] [Indexed: 12/25/2022] Open
Abstract
Heart function maintenance requires a large amount of energy, which is supplied by the mitochondria. In addition to providing energy to cardiomyocytes, mitochondria also play an important role in maintaining cell function and homeostasis. Although adult cardiomyocyte mitochondria appear as independent, low-static organelles, morphological changes have been observed in cardiomyocyte mitochondria under stress or pathological conditions. Indeed, cardiac mitochondrial fission and fusion are involved in the occurrence and development of heart diseases. As mitochondrial fission and fusion are primarily regulated by mitochondrial dynamins in a GTPase-dependent manner, GTPase-dependent mitochondrial fusion (MFN1, MFN2, and OPA1) and fission (DRP1) proteins, which are abundant in the adult heart, can also be regulated in heart diseases. In fact, these dynamic proteins have been shown to play important roles in specific diseases, including ischemia-reperfusion injury, heart failure, and metabolic cardiomyopathy. This article reviews the role of GTPase-dependent mitochondrial fusion and fission protein-mediated mitochondrial dynamics in the occurrence and development of heart diseases.
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Affiliation(s)
| | | | | | - Bin Liu
- Department of Cardiology, The Second Hospital of Jilin University, Changchun, China
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37
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Fu P, Epshtein Y, Ramchandran R, Mascarenhas JB, Cress AE, Jacobson J, Garcia JGN, Natarajan V. Essential role for paxillin tyrosine phosphorylation in LPS-induced mitochondrial fission, ROS generation and lung endothelial barrier loss. Sci Rep 2021; 11:17546. [PMID: 34475475 PMCID: PMC8413352 DOI: 10.1038/s41598-021-97006-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 08/12/2021] [Indexed: 11/09/2022] Open
Abstract
We have shown that both reactive oxygen species (ROS) and paxillin tyrosine phosphorylation regulate LPS-induced human lung endothelial permeability. Mitochondrial ROS (mtROS) is known to increase endothelial cell (EC) permeability which requires dynamic change in mitochondrial morphology, events that are likely to be regulated by paxillin. Here, we investigated the role of paxillin and its tyrosine phosphorylation in regulating LPS-induced mitochondrial dynamics, mtROS production and human lung microvascular EC (HLMVEC) dysfunction. LPS, in a time-dependent manner, induced higher levels of ROS generation in the mitochondria compared to cytoplasm or nucleus. Down-regulation of paxillin expression with siRNA or ecto-expression of paxillin Y31F or Y118F mutant plasmids attenuated LPS-induced mtROS in HLMVECs. Pre-treatment with MitoTEMPO, a scavenger of mtROS, attenuated LPS-induced mtROS, endothelial permeability and VE-cadherin phosphorylation. Further, LPS-induced mitochondrial fission in HLMVECs was attenuated by both a paxillin siRNA, and paxillin Y31F/Y118F mutant. LPS stimulated phosphorylation of dynamin-related protein (DRP1) at S616, which was also attenuated by paxillin siRNA, and paxillinY31/Y118 mutants. Inhibition of DRP1 phosphorylation by P110 attenuated LPS-induced mtROS and endothelial permeability. LPS challenge of HLMVECs enhanced interaction between paxillin, ERK, and DRP1, and inhibition of ERK1/2 activation with PD98059 blocked mitochondrial fission. Taken together, these results suggest a key role for paxillin tyrosine phosphorylation in LPS-induced mitochondrial fission, mtROS generation and EC barrier dysfunction.
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Affiliation(s)
- Panfeng Fu
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA. .,The Affiliated Hospital of Medical School, Medical School of Ningbo University, 247 Renmin Road, Ningbo, China.
| | - Yulia Epshtein
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Ramaswamy Ramchandran
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA
| | - Joseph B Mascarenhas
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Anne E Cress
- Departments of Cellular and Molecular Medicine, University of Arizona Health Sciences, Tucson, AZ, USA.,Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Jeffrey Jacobson
- Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA
| | - Joe G N Garcia
- Department of Medicine, College of Medicine, University of Arizona Health Sciences, Tucson, AZ, USA
| | - Viswanathan Natarajan
- Department of Pharmacology, University of Illinois at Chicago, COMRB Room # 3137, 909, South Wolcott Avenue, Chicago, IL, 60612, USA. .,Department of Medicine, University of Illinois at Chicago, Chicago, IL, USA.
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38
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Abstract
SUMOylation dynamically conjugates SUMO molecules to the lysine residue of a substrate protein, which depends on the physiological state of the cell and the attached SUMO isoforms. A prominent role of SUMOylation in molecular pathways is to govern the cellular death process. Herein, we summarize the association between SUMOylation modification events and four types of cellular death processes: apoptosis, autophagy, senescence and pyroptosis. SUMOylation positively or negatively regulates a certain cellular death pattern depending on specific conditions including the attached SUMO isoforms, disease types, substrate proteins and cell context. Moreover, we also discuss the possible role of SUMOylation in ferroptosis and propose a potential role of the SUMOylated GPX4 in the regulation of ferroptosis. Mapping the exact SUMOylation network with cellular death contributes to develop novel SUMOylation-targeting disease therapeutic strategies.
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Affiliation(s)
- Zenghua Sheng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Jing Zhu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Ya-Nan Deng
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Shan Gao
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
| | - Shufang Liang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, No.17, 3rd Section of People's South Road, Chengdu, 610041, People's Republic of China
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Ray A, Kamat K, Inamdar MS. A Conserved Role for Asrij/OCIAD1 in Progenitor Differentiation and Lineage Specification Through Functional Interaction With the Regulators of Mitochondrial Dynamics. Front Cell Dev Biol 2021; 9:643444. [PMID: 34295888 PMCID: PMC8290362 DOI: 10.3389/fcell.2021.643444] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Accepted: 06/14/2021] [Indexed: 11/24/2022] Open
Abstract
Mitochondria are highly dynamic organelles whose activity is an important determinant of blood stem and progenitor cell state. Mitochondrial morphology is maintained by continuous fission and fusion and affects stem cell proliferation, differentiation, and aging. However, the mechanism by which mitochondrial morphology and dynamics regulate cell differentiation and lineage choice remains incompletely understood. Asrij/OCIAD1 is a conserved protein that governs mitochondrial morphology, energy metabolism and human embryonic stem cell (hESC) differentiation. To investigate the in vivo relevance of these properties, we compared hESC phenotypes with those of Drosophila hematopoiesis, where Asrij is shown to regulate blood progenitor maintenance by conserved mechanisms. In concordance with hESC studies, we found that Drosophila Asrij also localizes to mitochondria of larval blood cells and its depletion from progenitors results in elongated mitochondria. Live imaging of asrij knockdown hemocytes and of OCIAD1 knockout hESCs showed reduced mitochondrial dynamics. Since key regulators of mitochondrial dynamics actively regulate mitochondrial morphology, we hypothesized that mitochondrial fission and fusion may control progenitor maintenance or differentiation in an Asrij-dependent manner. Knockdown of the fission regulator Drp1 in Drosophila lymph gland progenitors specifically suppressed crystal cell differentiation whereas depletion of the fusion regulator Marf (Drosophila Mitofusin) increased the same with concomitant upregulation of Notch signaling. These phenotypes were stronger in anterior progenitors and were exacerbated by Asrij depletion. Asrij is known to suppress Notch signaling and crystal cell differentiation. Our analysis reveals that synergistic interactions of Asrij with Drp1 and Marf have distinct impacts on lymph gland progenitor mitochondrial dynamics and crystal cell differentiation. Taken together, using invertebrate and mammalian model systems we demonstrate a conserved role for Asrij/OCIAD1 in linking mitochondrial dynamics and progenitor differentiation. Our study sets the stage for deciphering how regulators of mitochondrial dynamics may contribute to functional heterogeneity and lineage choice in vertebrate blood progenitors.
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Affiliation(s)
- Arindam Ray
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
| | - Kajal Kamat
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
| | - Maneesha S Inamdar
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Bengaluru, India
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40
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Wu D, Dasgupta A, Read AD, Bentley RET, Motamed M, Chen KH, Al-Qazazi R, Mewburn JD, Dunham-Snary KJ, Alizadeh E, Tian L, Archer SL. Oxygen sensing, mitochondrial biology and experimental therapeutics for pulmonary hypertension and cancer. Free Radic Biol Med 2021; 170:150-178. [PMID: 33450375 PMCID: PMC8217091 DOI: 10.1016/j.freeradbiomed.2020.12.452] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/24/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023]
Abstract
The homeostatic oxygen sensing system (HOSS) optimizes systemic oxygen delivery. Specialized tissues utilize a conserved mitochondrial sensor, often involving NDUFS2 in complex I of the mitochondrial electron transport chain, as a site of pO2-responsive production of reactive oxygen species (ROS). These ROS are converted to a diffusible signaling molecule, hydrogen peroxide (H2O2), by superoxide dismutase (SOD2). H2O2 exits the mitochondria and regulates ion channels and enzymes, altering plasma membrane potential, intracellular Ca2+ and Ca2+-sensitization and controlling acute, adaptive, responses to hypoxia that involve changes in ventilation, vascular tone and neurotransmitter release. Subversion of this O2-sensing pathway creates a pseudohypoxic state that promotes disease progression in pulmonary arterial hypertension (PAH) and cancer. Pseudohypoxia is a state in which biochemical changes, normally associated with hypoxia, occur despite normal pO2. Epigenetic silencing of SOD2 by DNA methylation alters H2O2 production, activating hypoxia-inducible factor 1α, thereby disrupting mitochondrial metabolism and dynamics, accelerating cell proliferation and inhibiting apoptosis. Other epigenetic mechanisms, including dysregulation of microRNAs (miR), increase pyruvate dehydrogenase kinase and pyruvate kinase muscle isoform 2 expression in both diseases, favoring uncoupled aerobic glycolysis. This Warburg metabolic shift also accelerates cell proliferation and impairs apoptosis. Disordered mitochondrial dynamics, usually increased mitotic fission and impaired fusion, promotes disease progression in PAH and cancer. Epigenetic upregulation of dynamin-related protein 1 (Drp1) and its binding partners, MiD49 and MiD51, contributes to the pathogenesis of PAH and cancer. Finally, dysregulation of intramitochondrial Ca2+, resulting from impaired mitochondrial calcium uniporter complex (MCUC) function, links abnormal mitochondrial metabolism and dynamics. MiR-mediated decreases in MCUC function reduce intramitochondrial Ca2+, promoting Warburg metabolism, whilst increasing cytosolic Ca2+, promoting fission. Epigenetically disordered mitochondrial O2-sensing, metabolism, dynamics, and Ca2+ homeostasis offer new therapeutic targets for PAH and cancer. Promoting glucose oxidation, restoring the fission/fusion balance, and restoring mitochondrial calcium regulation are promising experimental therapeutic strategies.
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Affiliation(s)
- Danchen Wu
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Asish Dasgupta
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Austin D Read
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Rachel E T Bentley
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Mehras Motamed
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Kuang-Hueih Chen
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Ruaa Al-Qazazi
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Jeffrey D Mewburn
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada
| | - Kimberly J Dunham-Snary
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada; Department of Biomedical and Molecular Sciences, Queen's University, Kingston, Ontario, K7L 3N6, Canada
| | - Elahe Alizadeh
- Queen's Cardiopulmonary Unit (QCPU), Department of Medicine, Queen's University, 116 Barrie Street, Kingston, ON, K7L 3J9, Canada
| | - Lian Tian
- Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Glasgow, G4 0RE, UK
| | - Stephen L Archer
- Department of Medicine, Queen's University, 94 Stuart St., Kingston, Ontario, K7L 3N6, Canada.
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41
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Wang C, Liu L, Wang Y, Xu D. Advances in the mechanism and treatment of mitochondrial quality control involved in myocardial infarction. J Cell Mol Med 2021; 25:7110-7121. [PMID: 34160885 PMCID: PMC8335700 DOI: 10.1111/jcmm.16744] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 05/22/2021] [Accepted: 06/03/2021] [Indexed: 12/11/2022] Open
Abstract
Mitochondria are important organelles in eukaryotic cells. Normal mitochondrial homeostasis is subject to a strict mitochondrial quality control system, including the strict regulation of mitochondrial production, fission/fusion and mitophagy. The strict and accurate modulation of the mitochondrial quality control system, comprising the mitochondrial fission/fusion, mitophagy and other processes, can ameliorate the myocardial injury of myocardial ischaemia and ischaemia-reperfusion after myocardial infarction, which plays an important role in myocardial protection after myocardial infarction. Further research into the mechanism will help identify new therapeutic targets and drugs for the treatment of myocardial infarction. This article aims to summarize the recent research regarding the mitochondrial quality control system and its molecular mechanism involved in myocardial infarction, as well as the potential therapeutic targets in the future.
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Affiliation(s)
- Chunfang Wang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Leiling Liu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Yishu Wang
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Danyan Xu
- Department of Cardiovascular Medicine, The Second Xiangya Hospital, Central South University, Changsha, China
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42
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Gu H, Yang K, Wu Q, Shen Z, Li X, Sun C. A link between protein acetylation and mitochondrial dynamics under energy metabolism: A comprehensive overview. J Cell Physiol 2021; 236:7926-7937. [PMID: 34101176 DOI: 10.1002/jcp.30461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/06/2021] [Accepted: 05/24/2021] [Indexed: 12/16/2022]
Abstract
Cells adjust mitochondrial morphologies to coordinate between the cellular demand for energy and the availability of resources. Mitochondrial morphology is regulated by the balance between two counteracting mitochondrial processes of fusion and fission. Fission and fusion are dynamic and reversible processes that depend on the coordination of a number of proteins and are primarily regulated by posttranslational modifications. In the mitochondria, more than 20% of proteins are acetylated in proteomic surveys, partly involved in the dynamic regulation of mitochondrial fusion and fission. This article focuses on the molecular mechanism of the mitochondrial dynamics of fusion and fission, and summarizes the related mechanisms and targets of mitochondrial protein acetylation to regulate the mitochondrial dynamics of fusion and fission in energy metabolism.
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Affiliation(s)
- Huihui Gu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Kun Yang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Qiong Wu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China.,Department of Pathophysiology, Qinghai University Medical College, Xining, Qinghai, China
| | - Zhentong Shen
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
| | - Xinjian Li
- College of Animal Science and Veterinary Medicine, Henan Agricultural University, Zhengzhou, China
| | - Chao Sun
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Shaanxi Province, College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, China
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43
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Li W, Ji L, Tian J, Tang W, Shan X, Zhao P, Chen H, Zhang C, Xu M, Lu R, Guo W. Ophiopogonin D alleviates diabetic myocardial injuries by regulating mitochondrial dynamics. JOURNAL OF ETHNOPHARMACOLOGY 2021; 271:113853. [PMID: 33485986 DOI: 10.1016/j.jep.2021.113853] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 01/12/2021] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Ophiopogonin D (OP-D) is a steroidal saponin extracted from Ophiopogon japonicus (Thunb.) Ker Gawl. (Liliaceae), that has been traditionally used to treat cough, sputum, and thirst in some Asian countries. Recently, various pharmacological roles of OP-D have been identified, including anti-inflammatory, cardioprotective, and anti-cancer effects. However, whether OP-D can prevent diabetic myocardial injury remains unknown. AIM OF THE STUDY In this study, we aimed to observe the effects of OP-D on the diabetic myocardium. MATERIALS AND METHODS Leptin receptor-deficient db/db mice were used as an animal model for type 2 diabetes. The effects of OP-D on blood glucose, blood lipids, myocardial ultrastructure, and mitochondrial function in mice were observed after four weeks of intragastric administration. Palmitic acid was used to stimulate cardiomyocytes to establish a myocardial lipotoxicity model. Cell apoptosis, mitochondrial morphology, and function were observed. RESULTS Blood glucose and blood lipid levels were significantly increased in db/db mice, accompanied by myocardial mitochondrial injury and dysfunction. OP-D treatment reduced blood lipid levels in db/db mice and relieved mitochondrial injury and dysfunction. OP-D inhibited palmitic acid induced-mitochondrial fission and dysfunction, reduced endogenous apoptosis, and improved cell survival rate in H9C2 cardiomyocytes. Both in vivo and in vitro models showed increased phosphorylation of DRP1 at Ser-616, reduced phosphorylation of DRP1 at Ser-637, and reduced expression of fusion proteins MFN1/2 and OPA1. Meanwhile, immunofluorescence co-localization analysis revealed that palmitic acid stimulated the translocation of DRP1 protein from the cytoplasm to the mitochondria in H9C2 cardiomyocytes. The imbalance of mitochondrial dynamics, protein expression, and translocation of DRP1 were effectively reversed by OP-D treatment. In isolated mice ventricular myocytes, palmitic acid enhanced cytoplasmic Ca2+ levels and suppressed contractility in ventricular myocytes, accompanied by activation of calcineurin, a key regulator of DRP1 dephosphorylation at Ser-637. OP-D reversed the changes caused by palmitic acid. CONCLUSIONS Our findings indicate that OP-D intervention could alleviate lipid accumulation and mitochondrial injury in diabetic mouse hearts and palmitic acid-stimulated cardiomyocytes. The cardioprotective effect of OP-D may be mediated by the regulation of mitochondrial dynamics.
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Affiliation(s)
- Weiwei Li
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Louyin Ji
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Jing Tian
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Wenzhu Tang
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Xiaoli Shan
- Public Laboratory Platform, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Pei Zhao
- Public Laboratory Platform, School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Huihua Chen
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Chen Zhang
- Department of Pathology, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Ming Xu
- Department of Physiology, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Rong Lu
- School of Basic Medical Science, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Wei Guo
- Department of Pathology, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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44
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Johnson J, Mercado‐Ayón E, Clark E, Lynch D, Lin H. Drp1-dependent peptide reverse mitochondrial fragmentation, a homeostatic response in Friedreich ataxia. Pharmacol Res Perspect 2021; 9:e00755. [PMID: 33951329 PMCID: PMC8099044 DOI: 10.1002/prp2.755] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 02/18/2021] [Indexed: 12/11/2022] Open
Abstract
Friedreich ataxia is an autosomal recessive, neurodegenerative disease characterized by the deficiency of the iron-sulfur cluster assembly protein frataxin. Loss of this protein impairs mitochondrial function. Mitochondria alter their morphology in response to various stresses; however, such alterations to morphology may be homeostatic or maladaptive depending upon the tissue and disease state. Numerous neurodegenerative diseases exhibit excessive mitochondrial fragmentation, and reversing this phenotype improves bioenergetics for diseases in which mitochondrial dysfunction is a secondary feature of the disease. This paper demonstrates that frataxin deficiency causes excessive mitochondrial fragmentation that is dependent upon Drp1 activity in Friedreich ataxia cellular models. Drp1 inhibition by the small peptide TAT-P110 reverses mitochondrial fragmentation but also decreases ATP levels in frataxin-knockdown fibroblasts and FRDA patient fibroblasts, suggesting that fragmentation may provide a homeostatic pathway for maintaining cellular ATP levels. The cardiolipin-stabilizing compound SS-31 similarly reverses fragmentation through a Drp1-dependent mechanism, but it does not affect ATP levels. The combination of TAT-P110 and SS-31 does not affect FRDA patient fibroblasts differently from SS-31 alone, suggesting that the two drugs act through the same pathway but differ in their ability to alter mitochondrial homeostasis. In approaching potential therapeutic strategies for FRDA, an important criterion for compounds that improve bioenergetics should be to do so without impairing the homeostatic response of mitochondrial fragmentation.
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Affiliation(s)
- Joseph Johnson
- Department of Pediatrics and NeurologyUniversity of PennsylvaniaPhiladelphiaPAUSA
| | | | - Elisia Clark
- Department of Pediatrics and NeurologyUniversity of PennsylvaniaPhiladelphiaPAUSA
| | - David Lynch
- Department of Pediatrics and NeurologyUniversity of PennsylvaniaPhiladelphiaPAUSA
- Children’s Hospital of PhiladelphiaPhiladelphiaPAUSA
| | - Hong Lin
- Department of Pediatrics and NeurologyUniversity of PennsylvaniaPhiladelphiaPAUSA
- Children’s Hospital of PhiladelphiaPhiladelphiaPAUSA
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45
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Mohsin M, Tabassum G, Ahmad S, Ali S, Ali Syed M. The role of mitophagy in pulmonary sepsis. Mitochondrion 2021; 59:63-75. [PMID: 33894359 DOI: 10.1016/j.mito.2021.04.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 04/13/2021] [Accepted: 04/19/2021] [Indexed: 12/16/2022]
Abstract
Sepsis is a systemic inflammatory disease with an unacceptably high mortality rate caused by an infection or trauma that involves both innate and adaptive immune systems. Inflammatory events activate different downstream pathways leading to tissue damage and ultimately multi-organ failure. Mitochondria are responsible for cellular energy, thermoregulation, metabolite biosynthesis, intracellular calcium regulation, and cell death. Damaged mitochondria induce the high Ca2+ influx through mitochondrial calcium uniporter (MCU). It also generates excessive Reactive oxygen species (ROS) and releases mtDNA into the cytoplasm, which causes induction of NLRP3 inflammasome and apoptosis. Mitophagy (Autophagy of damaged mitochondria) controls mitochondrial dynamics and function. It also maintains cellular homeostasis. This review is about how pulmonary sepsis affects the body. What is the aftermath of sepsis, and how mitophagy affects Acute Lung Injury and macrophage polarisation to overcome the damages.
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Affiliation(s)
- Mohd Mohsin
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Gulnaz Tabassum
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Shaniya Ahmad
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India
| | - Shakir Ali
- Department of Biochemistry, Jamia Hamdard, New Delhi 110019, India
| | - Mansoor Ali Syed
- Translational Research Lab, Department of Biotechnology, Jamia Millia Islamia, New Delhi 110025, India.
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46
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Lin KL, Chen SD, Lin KJ, Liou CW, Chuang YC, Wang PW, Chuang JH, Lin TK. Quality Matters? The Involvement of Mitochondrial Quality Control in Cardiovascular Disease. Front Cell Dev Biol 2021; 9:636295. [PMID: 33829016 PMCID: PMC8019794 DOI: 10.3389/fcell.2021.636295] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/02/2021] [Indexed: 12/12/2022] Open
Abstract
Cardiovascular diseases are one of the leading causes of death and global health problems worldwide. Multiple factors are known to affect the cardiovascular system from lifestyles, genes, underlying comorbidities, and age. Requiring high workload, metabolism of the heart is largely dependent on continuous power supply via mitochondria through effective oxidative respiration. Mitochondria not only serve as cellular power plants, but are also involved in many critical cellular processes, including the generation of intracellular reactive oxygen species (ROS) and regulating cellular survival. To cope with environmental stress, mitochondrial function has been suggested to be essential during bioenergetics adaptation resulting in cardiac pathological remodeling. Thus, mitochondrial dysfunction has been advocated in various aspects of cardiovascular pathology including the response to ischemia/reperfusion (I/R) injury, hypertension (HTN), and cardiovascular complications related to type 2 diabetes mellitus (DM). Therefore, mitochondrial homeostasis through mitochondrial dynamics and quality control is pivotal in the maintenance of cardiac health. Impairment of the segregation of damaged components and degradation of unhealthy mitochondria through autophagic mechanisms may play a crucial role in the pathogenesis of various cardiac disorders. This article provides in-depth understanding of the current literature regarding mitochondrial remodeling and dynamics in cardiovascular diseases.
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Affiliation(s)
- Kai-Lieh Lin
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Shang-Der Chen
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Kai-Jung Lin
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chia-Wei Liou
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Yao-Chung Chuang
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Pei-Wen Wang
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Metabolism, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Jiin-Haur Chuang
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Pediatric Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Tsu-Kung Lin
- Center for Mitochondrial Research and Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.,Center of Parkinson's Disease, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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47
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The Impact of Mitochondrial Fission-Stimulated ROS Production on Pro-Apoptotic Chemotherapy. BIOLOGY 2021; 10:biology10010033. [PMID: 33418995 PMCID: PMC7825353 DOI: 10.3390/biology10010033] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 12/29/2020] [Accepted: 01/01/2021] [Indexed: 02/06/2023]
Abstract
Cancer is one of the world's deadliest afflictions. Despite recent advances in diagnostic and surgical technologies, as well as improved treatments of some individual tumor types, there is currently no universal cure to prevent or impede the uncontrolled proliferation of malignant cells. Targeting tumors by inducing apoptosis is one of the pillars of cancer treatment. Changes in mitochondrial morphology precede intrinsic apoptosis, but mitochondrial dynamics has only recently been recognized as a viable pharmacological target. In many cancers, oncogenic transformation is accompanied by accumulation of elevated cellular levels of ROS leading to redox imbalance. Hence, a common chemotherapeutic strategy against such tumor types involves deploying pro-oxidant agents to increase ROS levels above an apoptotic death-inducing threshold. The aim of this chapter is to investigate the benefit of stimulating mitochondrial fission-dependent production of ROS for enhanced killing of solid tumors. The main question to be addressed is whether a sudden and abrupt change in mitochondrial shape toward the fragmented phenotype can be pharmacologically harnessed to trigger a burst of mitochondrial ROS sufficient to initiate apoptosis specifically in cancer cells but not in non-transformed healthy tissues.
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48
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Mitochondrial dysfunction in the development and progression of neurodegenerative diseases. Arch Biochem Biophys 2020; 702:108698. [PMID: 33259796 DOI: 10.1016/j.abb.2020.108698] [Citation(s) in RCA: 118] [Impact Index Per Article: 29.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/11/2020] [Accepted: 11/21/2020] [Indexed: 02/07/2023]
Abstract
In addition to ATP synthesis, mitochondria are highly dynamic organelles that modulate apoptosis, ferroptosis, and inflammasome activation. Through executing these varied functions, the mitochondria play critical roles in the development and progression of neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, Huntington's disease, and Friedreich ataxia, among others. Impaired mitochondrial biogenesis and abnormal mitochondrial dynamics contribute to mitochondrial dysfunction in these diseases. Additionally, dysfunctional mitochondria play critical roles in signaling for both inflammasome activation and ferroptosis. Therapeutics are being developed to circumvent inflammasome activation and ferroptosis in dysfunctional mitochondria. Targeting these aspects of mitochondrial dysfunction may present viable therapeutic strategies for combatting the neurodegenerative diseases. This review aims to summarize the role of the mitochondria in the development and progression of neurodegenerative diseases and to present current therapeutic approaches that target mitochondrial dysfunction in these diseases.
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49
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Wang J, Zhou H. Mitochondrial quality control mechanisms as molecular targets in cardiac ischemia -reperfusion injury. Acta Pharm Sin B 2020; 10:1866-1879. [PMID: 33163341 PMCID: PMC7606115 DOI: 10.1016/j.apsb.2020.03.004] [Citation(s) in RCA: 211] [Impact Index Per Article: 52.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/19/2020] [Accepted: 02/27/2020] [Indexed: 12/23/2022] Open
Abstract
Mitochondrial damage is a critical contributor to cardiac ischemia/reperfusion (I/R) injury. Mitochondrial quality control (MQC) mechanisms, a series of adaptive responses that preserve mitochondrial structure and function, ensure cardiomyocyte survival and cardiac function after I/R injury. MQC includes mitochondrial fission, mitochondrial fusion, mitophagy and mitochondria-dependent cell death. The interplay among these responses is linked to pathological changes such as redox imbalance, calcium overload, energy metabolism disorder, signal transduction arrest, the mitochondrial unfolded protein response and endoplasmic reticulum stress. Excessive mitochondrial fission is an early marker of mitochondrial damage and cardiomyocyte death. Reduced mitochondrial fusion has been observed in stressed cardiomyocytes and correlates with mitochondrial dysfunction and cardiac depression. Mitophagy allows autophagosomes to selectively degrade poorly structured mitochondria, thus maintaining mitochondrial network fitness. Nevertheless, abnormal mitophagy is maladaptive and has been linked to cell death. Although mitochondria serve as the fuel source of the heart by continuously producing adenosine triphosphate, they also stimulate cardiomyocyte death by inducing apoptosis or necroptosis in the reperfused myocardium. Therefore, defects in MQC may determine the fate of cardiomyocytes. In this review, we summarize the regulatory mechanisms and pathological effects of MQC in myocardial I/R injury, highlighting potential targets for the clinical management of reperfusion.
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Affiliation(s)
- Jin Wang
- Department of Cardiology, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing 100853, China
| | - Hao Zhou
- Department of Cardiology, Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing 100853, China
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DRP1 deficiency induces mitochondrial dysfunction and oxidative stress-mediated apoptosis during porcine oocyte maturation. J Anim Sci Biotechnol 2020; 11:77. [PMID: 32782788 PMCID: PMC7409671 DOI: 10.1186/s40104-020-00489-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 06/18/2020] [Indexed: 12/31/2022] Open
Abstract
Background Environmental pollution induces oxidative stress and apoptosis in mammalian oocytes, which can cause defects in reproduction; however, the molecular regulation of oxidative stress in oocytes is still largely unknown. In the present study, we identified that dynamin-related protein 1 (DRP1) is an important molecule regulating oocyte mitochondrial function and preventing oxidative stress/apoptosis. DRP1 is a member of the dynamin GTPase superfamily localized at the mitochondrial-endoplasmic reticulum interaction site, where it regulates the fission of mitochondria and other related cellular processes. Results Our results show that DRP1 was stably expressed during different stages of porcine oocyte meiosis, and might have a potential relationship with mitochondria as it exhibited similar localization. Loss of DRP1 activity caused failed porcine oocyte maturation and cumulus cell expansion, as well as defects in polar body extrusion. Further analysis indicated that a DRP1 deficiency caused mitochondrial dysfunction and induced oxidative stress, which was confirmed by increased reactive oxygen species levels. Moreover, the incidence of early apoptosis increased as detected by positive Annexin-V signaling. Conclusions Taken together, our results indicate that DRP1 is essential for porcine oocyte maturation and that a DRP1 deficiency could induce mitochondrial dysfunction, oxidative stress, and apoptosis.
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