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Alva R, Wiebe JE, Stuart JA. Revisiting reactive oxygen species production in hypoxia. Pflugers Arch 2024; 476:1423-1444. [PMID: 38955833 DOI: 10.1007/s00424-024-02986-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Revised: 06/20/2024] [Accepted: 06/24/2024] [Indexed: 07/04/2024]
Abstract
Cellular responses to hypoxia are crucial in various physiological and pathophysiological contexts and have thus been extensively studied. This has led to a comprehensive understanding of the transcriptional response to hypoxia, which is regulated by hypoxia-inducible factors (HIFs). However, the detailed molecular mechanisms of HIF regulation in hypoxia remain incompletely understood. In particular, there is controversy surrounding the production of mitochondrial reactive oxygen species (ROS) in hypoxia and how this affects the stabilization and activity of HIFs. This review examines this controversy and attempts to shed light on its origin. We discuss the role of physioxia versus normoxia as baseline conditions that can affect the subsequent cellular response to hypoxia and highlight the paucity of data on pericellular oxygen levels in most experiments, leading to variable levels of hypoxia that might progress to anoxia over time. We analyze the different outcomes reported in isolated mitochondria, versus intact cells or whole organisms, and evaluate the reliability of various ROS-detecting tools. Finally, we examine the cell-type and context specificity of oxygen's various effects. We conclude that while recent evidence suggests that the effect of hypoxia on ROS production is highly dependent on the cell type and the duration of exposure, efforts should be made to conduct experiments under carefully controlled, physiological microenvironmental conditions in order to rule out potential artifacts and improve reproducibility in research.
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Affiliation(s)
- Ricardo Alva
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada.
| | - Jacob E Wiebe
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada
| | - Jeffrey A Stuart
- Department of Biological Sciences, Brock University, St. Catharines, ON, L2S 3A1, Canada.
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Li X, Han Y, Meng Y, Yin L. Small RNA-big impact: exosomal miRNAs in mitochondrial dysfunction in various diseases. RNA Biol 2024; 21:1-20. [PMID: 38174992 PMCID: PMC10773649 DOI: 10.1080/15476286.2023.2293343] [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] [Accepted: 12/05/2023] [Indexed: 01/05/2024] Open
Abstract
Mitochondria are multitasking organelles involved in maintaining the cell homoeostasis. Beyond its well-established role in cellular bioenergetics, mitochondria also function as signal organelles to propagate various cellular outcomes. However, mitochondria have a self-destructive arsenal of factors driving the development of diseases caused by mitochondrial dysfunction. Extracellular vesicles (EVs), a heterogeneous group of membranous nano-sized vesicles, are present in a variety of bodily fluids. EVs serve as mediators for intercellular interaction. Exosomes are a class of small EVs (30-100 nm) released by most cells. Exosomes carry various cargo including microRNAs (miRNAs), a class of short noncoding RNAs. Recent studies have closely associated exosomal miRNAs with various human diseases, including diseases caused by mitochondrial dysfunction, which are a group of complex multifactorial diseases and have not been comprehensively described. In this review, we first briefly introduce the characteristics of EVs. Then, we focus on possible mechanisms regarding exosome-mitochondria interaction through integrating signalling networks. Moreover, we summarize recent advances in the knowledge of the role of exosomal miRNAs in various diseases, describing how mitochondria are changed in disease status. Finally, we propose future research directions to provide a novel therapeutic strategy that could slow the disease progress mediated by mitochondrial dysfunction.
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Affiliation(s)
- Xiaqing Li
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
- Central laboratory, The Fifth Hospital Affiliated to Jinan University, Heyuan, China
| | - Yi Han
- Traditional Chinese Medicine Department, People’s Hospital of Yanjiang District, Ziyang, Sichuan, China
| | - Yu Meng
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
- Central laboratory, The Fifth Hospital Affiliated to Jinan University, Heyuan, China
| | - Lianghong Yin
- Institute of Nephrology and Blood Purification, The First Affiliated Hospital, Jinan University Guangzhou, Guangdong, China
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3
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Ren J, Liu J, Zhang J, Hu X, Cui Y, Wei X, Ma Y, Li X, Zhao Y. Dynamin-Related Protein 1 Binding Partners MiD49 and MiD51 Increased Mitochondrial Fission In Vitro and Atherosclerosis in High-Fat-Diet-Fed ApoE -/- Mice. Int J Mol Sci 2023; 25:244. [PMID: 38203413 PMCID: PMC10778634 DOI: 10.3390/ijms25010244] [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: 10/26/2023] [Revised: 12/14/2023] [Accepted: 12/20/2023] [Indexed: 01/12/2024] Open
Abstract
Novel components of the mitochondrial fission machinery, mitochondrial dynamics proteins of 49 kDa (MiD49) and 51 kDa (MiD51), have been recently described, and their potential therapeutic targets for treating cardiovascular disease have been shown, including acute myocardial infarction (AMI), anthracycline cardiomyopathy and pulmonary arterial hypertension (PAH). Here, we examined the role of MiD49 and MiD51 in atherosclerosis. MiD49/51 expression was increased in the aortic valve endothelial cells (ECs) of high-fat diet-induced atherosclerosis in ApoE-/-mice and IL-8-induced human umbilical vein endothelial cells (HUVECs), which accelerated dynamin-related protein 1 (Drp1)-mediated mitochondrial fission. Silencing MiD49/51 reduced atherosclerotic plaque size, increased collagen content, and decreased the IL-8-induced adhesion and proliferation of HUVECs. MiD51 upregulation resulted from decreased microRNA (miR)-107 expression and increased hypoxia-inducible factor-1a (HIF-1a) expression. Treatment with miR-107 mimics decreased atherosclerotic plaque size by reducing HIF-1α and MiD51 production. Both MiD49 and MiD51 were involved in atherosclerotic plaque formation through Drp1-mediated mitochondrial fission, and the involvement of MiD51 in this process was the result of decreased miR-107 expression and increased HIF-1α expression. The miR-107-HIF-1α-MiD51 pathway might provide new therapeutic targets for atherosclerosis.
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Affiliation(s)
- Jinyi Ren
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China
| | - Jiaqing Liu
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China
| | - Jiahui Zhang
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China
| | - Xinxin Hu
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Liaoning Provincial Core Lab of Medical Molecular Biology, Dalian Medical University, Dalian 116000, China
| | - Ying Cui
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Liaoning Provincial Core Lab of Medical Molecular Biology, Dalian Medical University, Dalian 116000, China
| | - Xiaoqing Wei
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Liaoning Provincial Core Lab of Medical Molecular Biology, Dalian Medical University, Dalian 116000, China
| | - Yang Ma
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China
| | - Xia Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China
| | - Ying Zhao
- Molecular Medical Laboratory, College of Basic Medical Science, Dalian Medical University, Dalian 116000, China; (J.R.); (J.L.); (J.Z.); (X.H.); (Y.C.); (X.W.); (Y.M.)
- Liaoning Provincial Core Lab of Medical Molecular Biology, Dalian Medical University, Dalian 116000, China
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Nanto-Hara F, Yamazaki M, Murakami H, Ohtsu H. Chronic heat stress induces renal fibrosis and mitochondrial dysfunction in laying hens. J Anim Sci Biotechnol 2023; 14:81. [PMID: 37268977 DOI: 10.1186/s40104-023-00878-5] [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: 12/12/2022] [Accepted: 04/05/2023] [Indexed: 06/04/2023] Open
Abstract
BACKGROUND Heat stress in laying hens negatively affects egg production and shell quality by disrupting the homeostasis of plasma calcium and phosphorus levels. Although the kidney plays an important role in calcium and phosphorus homeostasis, evidence regarding the effect of heat stress on renal injury in laying hens is yet to be elucidated. Therefore, the aim of this study was to evaluate the effects of chronic heat stress on renal damage in hens during laying periods. METHODS A total of 16 white-leghorn laying hens (32 weeks old) were randomly assigned to two groups (n = 8). One group was exposed to chronic heat stress (33 °C for 4 weeks), whereas the other group was maintained at 24 °C. RESULTS Chronic heat exposure significantly increased plasma creatinine and decreased plasma albumin levels (P < 0.05). Heat exposure also increased renal fibrosis and the transcription levels of fibrosis-related genes (COLA1A1, αSMA, and TGF-β) in the kidney. These results suggest that renal failure and fibrosis were induced by chronic heat exposure in laying hens. In addition, chronic heat exposure decreased ATP levels and mitochondrial DNA copy number (mtDNA-CN) in renal tissue, suggesting that renal mitochondrial dysfunction occurs under conditions of heat stress. Damaged mitochondria leak mtDNAs into the cytosol and mtDNA leakage may activate the cyclic GMP-AMP synthase (cGAS) stimulator of interferon genes (STING) signaling pathway. Our results showed that chronic heat exposure activated the cGAS-STING pathway as indicated by increased expression of MDA5, STING, IRF7, MAVS, and NF-κB levels. Furthermore, the expression of pro-inflammatory cytokines (IL-12) and chemokines (CCL4 and CCL20) was upregulated in heat-stressed hens. CONCLUSIONS These results suggest that chronic heat exposure induces renal fibrosis and mitochondrial damage in laying hens. Mitochondrial damage by heat stress may activate the mtDNA-cGAS-STING signaling and cause subsequent inflammation, which contributes to the progression of renal fibrosis and dysfunction.
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Affiliation(s)
- Fumika Nanto-Hara
- Division of Meat Animal and Poultry Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NILGS), 2 Ikenodai, Tsukuba, Ibaraki, 305-0901, Japan.
| | - Makoto Yamazaki
- Division of Meat Animal and Poultry Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NILGS), 2 Ikenodai, Tsukuba, Ibaraki, 305-0901, Japan
| | - Hitoshi Murakami
- Division of Meat Animal and Poultry Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NILGS), 2 Ikenodai, Tsukuba, Ibaraki, 305-0901, Japan
| | - Haruhiko Ohtsu
- Division of Meat Animal and Poultry Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization (NILGS), 2 Ikenodai, Tsukuba, Ibaraki, 305-0901, Japan
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Crosas-Molist E, Graziani V, Maiques O, Pandya P, Monger J, Samain R, George SL, Malik S, Salise J, Morales V, Le Guennec A, Atkinson RA, Marti RM, Matias-Guiu X, Charras G, Conte MR, Elosegui-Artola A, Holt M, Sanz-Moreno V. AMPK is a mechano-metabolic sensor linking cell adhesion and mitochondrial dynamics to Myosin-dependent cell migration. Nat Commun 2023; 14:2740. [PMID: 37217519 PMCID: PMC10202939 DOI: 10.1038/s41467-023-38292-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Accepted: 04/24/2023] [Indexed: 05/24/2023] Open
Abstract
Cell migration is crucial for cancer dissemination. We find that AMP-activated protein kinase (AMPK) controls cell migration by acting as an adhesion sensing molecular hub. In 3-dimensional matrices, fast-migrating amoeboid cancer cells exert low adhesion/low traction linked to low ATP/AMP, leading to AMPK activation. In turn, AMPK plays a dual role controlling mitochondrial dynamics and cytoskeletal remodelling. High AMPK activity in low adhering migratory cells, induces mitochondrial fission, resulting in lower oxidative phosphorylation and lower mitochondrial ATP. Concurrently, AMPK inactivates Myosin Phosphatase, increasing Myosin II-dependent amoeboid migration. Reducing adhesion or mitochondrial fusion or activating AMPK induces efficient rounded-amoeboid migration. AMPK inhibition suppresses metastatic potential of amoeboid cancer cells in vivo, while a mitochondrial/AMPK-driven switch is observed in regions of human tumours where amoeboid cells are disseminating. We unveil how mitochondrial dynamics control cell migration and suggest that AMPK is a mechano-metabolic sensor linking energetics and the cytoskeleton.
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Affiliation(s)
- Eva Crosas-Molist
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
| | - Vittoria Graziani
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
| | - Oscar Maiques
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
| | - Pahini Pandya
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
| | - Joanne Monger
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
| | - Remi Samain
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
| | - Samantha L George
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
| | - Saba Malik
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
| | - Jerrine Salise
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK
| | - Valle Morales
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK
| | - Adrien Le Guennec
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK
| | - R Andrew Atkinson
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK
- Institut de Pharmacologie et de Biologie Structurale (IPBS), UMR5089, CNRS-Université de Toulouse III-Paul Sabatier, BP 64182, 31077, Toulouse, Cedex 4, France
| | - Rosa M Marti
- Department of Dermatology, Hospital Universitari Arnau de Vilanova, University of Lleida, CIBERONC, IRB Lleida, Lleida, 25198, Spain
| | - Xavier Matias-Guiu
- Department of Pathology and Molecular Genetics, Hospital Universitari Arnau de Vilanova, University of Lleida, IRB Lleida, CIBERONC, Lleida, 25198, Spain
- Department of Pathology, Hospital Universitari de Bellvitge, University of Barcelona, IDIBELL, CIBERONC, L'Hospitalet de Llobregat, Barcelona, 08907, Spain
| | - Guillaume Charras
- London Centre for Nanotechnology, University College London, London, WC1H 0AH, UK
- Department of Cell and Developmental Biology, University College London, London, WC1E 6BT, UK
| | - Maria R Conte
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
- Centre for Biomolecular Spectroscopy, King's College London, London, SE1 1UL, UK
| | - Alberto Elosegui-Artola
- Cell and Tissue Mechanobiology Lab, The Francis Crick Institute, 1 Midland Road, London, NW1 1AT, UK
- Department of Physics, King's College London, London, WC2R 2LS, UK
| | - Mark Holt
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK
- School of Cardiovascular and Metabolic Medicine & Sciences, King's College London BHF Centre of Research Excellence, London, SE1 1UL, UK
| | - Victoria Sanz-Moreno
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Building, Charterhouse Square, London, EC1M 6BQ, UK.
- Randall Centre for Cell and Molecular Biophysics, New Hunt's House, Guy's Campus, King's College London, London, SE1 1UL, UK.
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6
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Alva R, Moradi F, Liang P, Stuart JA. Culture of Cancer Cells at Physiological Oxygen Levels Affects Gene Expression in a Cell-Type Specific Manner. Biomolecules 2022; 12:1684. [PMID: 36421698 PMCID: PMC9688152 DOI: 10.3390/biom12111684] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 11/03/2022] [Accepted: 11/11/2022] [Indexed: 02/26/2024] Open
Abstract
Standard cell culture is routinely performed at supraphysiological oxygen levels (~18% O2). Conversely, O2 levels in most mammalian tissues range from 1-6% (physioxia). Such hyperoxic conditions in cell culture can alter reactive oxygen species (ROS) production, metabolism, mitochondrial networks, and response to drugs and hormones. The aim of this study was to investigate the transcriptional response to different O2 levels and determine whether it is similar across cell lines, or cell line-specific. Using RNA-seq, we performed differential gene expression and functional enrichment analyses in four human cancer cell lines, LNCaP, Huh-7, PC-3, and SH-SY5Y cultured at either 5% or 18% O2 for 14 days. We found that O2 levels affected transcript abundance of thousands of genes, with the affected genes having little overlap between cell lines. Functional enrichment analysis also revealed different processes and pathways being affected by O2 in each cell line. Interestingly, most of the top differentially expressed genes are involved in cancer biology, which highlights the importance of O2 levels in cancer cell research. Further, we observed several hypoxia-inducible factor (HIF) targets, HIF-2α targets particularly, upregulated at 5% O2, consistent with a role for HIFs in physioxia. O2 levels also differentially induced the transcription of mitochondria-encoded genes in most cell lines. Finally, by comparing our transcriptomic data from LNCaP and PC-3 with datasets from the Prostate Cancer Transcriptome Atlas, a correlation between genes upregulated at 5% O2 in LNCaP cells and the in vivo prostate cancer transcriptome was found. We conclude that the transcriptional response to O2 over the range from 5-18% is robust and highly cell-type specific. This latter finding indicates that the effects of O2 levels are difficult to predict and thus highlights the importance of regulating O2 in cell culture.
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Affiliation(s)
- Ricardo Alva
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada
| | - Fereshteh Moradi
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada
| | - Ping Liang
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada
- Centre for Biotechnology, Brock University, St. Catharines, ON L2S 3A1, Canada
| | - Jeffrey A. Stuart
- Department of Biological Sciences, Brock University, St. Catharines, ON L2S 3A1, Canada
- Centre for Biotechnology, Brock University, St. Catharines, ON L2S 3A1, Canada
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7
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Kuo CL, Ponneri Babuharisankar A, Lin YC, Lien HW, Lo YK, Chou HY, Tangeda V, Cheng LC, Cheng AN, Lee AYL. Mitochondrial oxidative stress in the tumor microenvironment and cancer immunoescape: foe or friend? J Biomed Sci 2022; 29:74. [PMID: 36154922 PMCID: PMC9511749 DOI: 10.1186/s12929-022-00859-2] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Accepted: 09/19/2022] [Indexed: 12/07/2022] Open
Abstract
The major concept of "oxidative stress" is an excess elevated level of reactive oxygen species (ROS) which are generated from vigorous metabolism and consumption of oxygen. The precise harmonization of oxidative stresses between mitochondria and other organelles in the cell is absolutely vital to cell survival. Under oxidative stress, ROS produced from mitochondria and are the major mediator for tumorigenesis in different aspects, such as proliferation, migration/invasion, angiogenesis, inflammation, and immunoescape to allow cancer cells to adapt to the rigorous environment. Accordingly, the dynamic balance of oxidative stresses not only orchestrate complex cell signaling events in cancer cells but also affect other components in the tumor microenvironment (TME). Immune cells, such as M2 macrophages, dendritic cells, and T cells are the major components of the immunosuppressive TME from the ROS-induced inflammation. Based on this notion, numerous strategies to mitigate oxidative stresses in tumors have been tested for cancer prevention or therapies; however, these manipulations are devised from different sources and mechanisms without established effectiveness. Herein, we integrate current progress regarding the impact of mitochondrial ROS in the TME, not only in cancer cells but also in immune cells, and discuss the combination of emerging ROS-modulating strategies with immunotherapies to achieve antitumor effects.
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Affiliation(s)
- Cheng-Liang Kuo
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Ananth Ponneri Babuharisankar
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan.,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan
| | - Ying-Chen Lin
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Hui-Wen Lien
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Yu Kang Lo
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Han-Yu Chou
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan
| | - Vidhya Tangeda
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan.,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan
| | - Li-Chun Cheng
- Liver Research Center, Linkou Chang Gung Memorial Hospital, Taoyuan, 333, Taiwan
| | - An Ning Cheng
- Genomics Research Center, Academia Sinica, Taipei, 115, Taiwan
| | - Alan Yueh-Luen Lee
- National Institute of Cancer Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli, 35053, Taiwan. .,Joint PhD Program in Molecular Medicine, NHRI & NCU, Zhunan, Miaoli, 35053, Taiwan. .,Department of Life Sciences, College of Health Sciences and Technology, National Central University, Zhongli, Taoyuan, 32001, Taiwan. .,Graduate Institute of Biomedical Sciences, China Medical University, Taichung, 40402, Taiwan. .,Department of Biotechnology, College of Life Science, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan.
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8
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Liu B, Wen H, Yang J, Li X, Li G, Zhang J, Wu S, Butts IAE, He F. Hypoxia Affects HIF-1/LDH-A Signaling Pathway by Methylation Modification and Transcriptional Regulation in Japanese Flounder (Paralichthys olivaceus). BIOLOGY 2022; 11:biology11081233. [PMID: 36009861 PMCID: PMC9405012 DOI: 10.3390/biology11081233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/02/2022] [Accepted: 07/04/2022] [Indexed: 11/20/2022]
Abstract
Simple Summary With global climate change and increased aquaculture production, fishes in natural waters or aquaculture systems are easily subjected to hypoxic stress. However, our understanding about their responsive mechanisms to hypoxia is still limited. Japanese flounder (Paralichthys olivaceus) is a widely cultivated marine economical flatfish, whose hypoxic responsive mechanisms are not fully researched. In this study, responses to hypoxia were investigated at blood physiological, biochemical, hormonal, and molecular levels. Responsive mechanisms of the HIF-1/LDH-A signaling pathway in epigenetic modification and transcriptional regulation were also researched. These results are important for enriching the theory of environmental responsive mechanisms and guiding aquaculture. Abstract Japanese flounder (Paralichthys olivaceus) responsive mechanisms to hypoxia are still not fully understood. Therefore, we performed an acute hypoxic treatment (dissolved oxygen at 2.07 ± 0.08 mg/L) on Japanese flounder. It was confirmed that the hypoxic stress affected the physiological phenotype through changes in blood physiology (RBC, HGB, WBC), biochemistry (LDH, ALP, ALT, GLU, TC, TG, ALB), and hormone (cortisol) indicators. Hypoxia inducible factor-1 (HIF-1), an essential oxygen homeostasis mediator in organisms consisting of an inducible HIF-1α and a constitutive HIF-1β, and its target gene LDH-A were deeply studied. Results showed that HIF-1α and LDH-A genes were co-expressed and significantly affected by hypoxic stress. The dual-luciferase reporter assay confirmed that transcription factor HIF-1 transcriptionally regulated the LDH-A gene, and its transcription binding sequence was GGACGTGA located at −2343~−2336. The DNA methylation status of HIF-1α and LDH-A genes were detected to understand the mechanism of environmental stress on genes. It was found that hypoxia affected the HIF-1α gene and LDH-A gene methylation levels. The study uncovered HIF-1/LDH-A signaling pathway responsive mechanisms of Japanese flounder to hypoxia in epigenetic modification and transcriptional regulation. Our study is significant to further the understanding of environmental responsive mechanisms as well as providing a reference for aquaculture.
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Affiliation(s)
- Binghua Liu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Jun Yang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Xiaohui Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Guangling Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Jingru Zhang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Shuxian Wu
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
| | - Ian AE Butts
- School of Fisheries, Aquaculture and Aquatic Sciences, Auburn University, Auburn, AL 36849, USA
| | - Feng He
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao 266000, China
- Correspondence:
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9
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Jiang B, Zhang J, Zhao G, Liu M, Hu J, Lin F, Wang J, Zhao W, Ma H, Zhang C, Wu C, Yao L, Liu Q, Chen X, Cao Y, Zheng Y, Zhang C, Han A, Lin D, Li Q. Filamentous GLS1 promotes ROS-induced apoptosis upon glutamine deprivation via insufficient asparagine synthesis. Mol Cell 2022; 82:1821-1835.e6. [PMID: 35381197 DOI: 10.1016/j.molcel.2022.03.016] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 01/30/2022] [Accepted: 03/09/2022] [Indexed: 12/29/2022]
Abstract
GLS1 orchestrates glutaminolysis and promotes cell proliferation when glutamine is abundant by regenerating TCA cycle intermediates and supporting redox homeostasis. CB-839, an inhibitor of GLS1, is currently under clinical investigation for a variety of cancer types. Here, we show that GLS1 facilitates apoptosis when glutamine is deprived. Mechanistically, the absence of exogenous glutamine sufficiently reduces glutamate levels to convert dimeric GLS1 to a self-assembled, extremely low-Km filamentous polymer. GLS1 filaments possess an enhanced catalytic activity, which further depletes intracellular glutamine. Functionally, filamentous GLS1-dependent glutamine scarcity leads to inadequate synthesis of asparagine and mitogenome-encoded proteins, resulting in ROS-induced apoptosis that can be rescued by asparagine supplementation. Physiologically, we observed GLS1 filaments in solid tumors and validated the tumor-suppressive role of constitutively active, filamentous GLS1 mutants K320A and S482C in xenograft models. Our results change our understanding of GLS1 in cancer metabolism and suggest the therapeutic potential of promoting GLS1 filament formation.
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Affiliation(s)
- Bin Jiang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jia Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Guohui Zhao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Mengjue Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jielu Hu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Furong Lin
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Jinyang Wang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Wentao Zhao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Huanhuan Ma
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Cixiong Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Caiming Wu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Luming Yao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Qingfeng Liu
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Xin Chen
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yating Cao
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Yi Zheng
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Chensong Zhang
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Aidong Han
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China
| | - Donghai Lin
- MOE Key Laboratory of Spectrochemical Analysis & Instrumentation, Key Laboratory of Chemical Biology of Fujian Province, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, Fujian 361005, China
| | - Qinxi Li
- State Key Laboratory of Cellular Stress Biology, Innovation Center for Cell Signaling Network, School of Life Sciences, Xiamen University, Xiamen, Fujian 361102, China.
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10
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Wang S, Tan J, Miao Y, Zhang Q. Mitochondrial Dynamics, Mitophagy, and Mitochondria–Endoplasmic Reticulum Contact Sites Crosstalk Under Hypoxia. Front Cell Dev Biol 2022; 10:848214. [PMID: 35281107 PMCID: PMC8914053 DOI: 10.3389/fcell.2022.848214] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 02/07/2022] [Indexed: 12/21/2022] Open
Abstract
Mitochondria are double membrane organelles within eukaryotic cells, which act as cellular power houses, depending on the continuous availability of oxygen. Nevertheless, under hypoxia, metabolic disorders disturb the steady-state of mitochondrial network, which leads to dysfunction of mitochondria, producing a large amount of reactive oxygen species that cause further damage to cells. Compelling evidence suggests that the dysfunction of mitochondria under hypoxia is linked to a wide spectrum of human diseases, including obstructive sleep apnea, diabetes, cancer and cardiovascular disorders. The functional dichotomy of mitochondria instructs the necessity of a quality-control mechanism to ensure a requisite number of functional mitochondria that are present to fit cell needs. Mitochondrial dynamics plays a central role in monitoring the condition of mitochondrial quality. The fission–fusion cycle is regulated to attain a dynamic equilibrium under normal conditions, however, it is disrupted under hypoxia, resulting in mitochondrial fission and selective removal of impaired mitochondria by mitophagy. Current researches suggest that the molecular machinery underlying these well-orchestrated processes are coordinated at mitochondria–endoplasmic reticulum contact sites. Here, we establish a holistic understanding of how mitochondrial dynamics and mitophagy are regulated at mitochondria–endoplasmic reticulum contact sites under hypoxia.
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11
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Efficient clofilium tosylate-mediated rescue of POLG-related disease phenotypes in zebrafish. Cell Death Dis 2021; 12:100. [PMID: 33469036 PMCID: PMC7815880 DOI: 10.1038/s41419-020-03359-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 12/08/2020] [Accepted: 12/16/2020] [Indexed: 02/07/2023]
Abstract
The DNA polymerase gamma (Polg) is a nuclear-encoded enzyme involved in DNA replication in animal mitochondria. In humans, mutations in the POLG gene underlie a set of mitochondrial diseases characterized by mitochondrial DNA (mtDNA) depletion or deletion and multiorgan defects, named POLG disorders, for which an effective therapy is still needed. By applying antisense strategies, ENU- and CRISPR/Cas9-based mutagenesis, we have generated embryonic, larval-lethal and adult-viable zebrafish Polg models. Morphological and functional characterizations detected a set of phenotypes remarkably associated to POLG disorders, including cardiac, skeletal muscle, hepatic and gonadal defects, as well as mitochondrial dysfunctions and, notably, a perturbed mitochondria-to-nucleus retrograde signaling (CREB and Hypoxia pathways). Next, taking advantage of preliminary evidence on the candidate molecule Clofilium tosylate (CLO), we tested CLO toxicity and then its efficacy in our zebrafish lines. Interestingly, at well tolerated doses, the CLO drug could successfully rescue mtDNA and Complex I respiratory activity to normal levels, even in mutant phenotypes worsened by treatment with Ethidium Bromide. In addition, the CLO drug could efficiently restore cardio-skeletal parameters and mitochondrial mass back to normal values. Altogether, these evidences point to zebrafish as a valuable vertebrate organism to faithfully phenocopy multiple defects detected in POLG patients. Moreover, this model represents an excellent platform to screen, at the whole-animal level, candidate molecules with therapeutic effects in POLG disorders.
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12
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Ischemic Stroke Risk Associated with Mitochondrial Haplogroup F in the Asian Population. Cells 2020; 9:cells9081885. [PMID: 32796743 PMCID: PMC7463505 DOI: 10.3390/cells9081885] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/06/2020] [Accepted: 08/06/2020] [Indexed: 12/22/2022] Open
Abstract
Mitochondrial dysfunction is involved in the pathogenesis of atherosclerosis, the primary risk factor for ischemic stroke. This study aims to explore the role of mitochondrial genomic variations in ischemic stroke, and to uncover the nuclear genes involved in this relationship. Eight hundred and thirty Taiwanese patients with a history of ischemic stroke and 966 normal controls were genotyped for their mitochondrial haplogroup (Mthapg). Cytoplasmic hybrid cells (cybrids) harboring different Mthapgs were used to observe functional differences under hypoxia-ischemia. RNA sequencing (RNASeq) was conducted to identify the particularly elevated mRNA. The patient study identified an association between Mthapg F1 and risk of ischemic stroke (OR 1.72:1.27-2.34, p = 0.001). The cellular study further demonstrated an impeded induction of hypoxic inducible factor 1α in the Mthapg F1 cybrid after hypoxia-ischemia. Additionally, the study demonstrated that Mthapg F cybrids were associated with an altered mitochondrial function, including decreased oxygen consumption, higher mitochondrial ROS production, and lower mitochondrial membrane potential. Mthapg F cybrids were also noted to be prone to inflammation, with increased expression of several inflammatory cytokines and elevated matrix metalloproteinase 9. The RNASeq identified significantly elevated expressions of angiopoietin-like 4 in Mthapg F1 cybrids after hypoxia-ischemia. Our study demonstrates an association between Mthapg F and susceptibility to ischemic stroke.
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13
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Han P, Ren X, Qu X, Meng Y. The Regulatory Mechanisms of Dynamin-Related Protein 1 in Tumor Development and Therapy. Cancer Biother Radiopharm 2020; 36:10-17. [PMID: 32762544 DOI: 10.1089/cbr.2020.3791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Background: Various types of tumors are likely to acquire drug resistance over time. Hence, the development of novel therapies to overcome drug resistance is critical. Studies have demonstrated that drug resistance is closely associated with the dynamic regulation of mitochondria in tumor cells. The dynamin-related protein 1 (Drp1) is involved in the regulation of mitochondrial fission and plays an important role in maintaining mitochondrial morphology, function, and distribution. It is a key protein in mitochondrial quality control. Drp1 is a GTPase localized to the cytoplasm and is a potential target in cancer therapy. A variety of drugs targeting Drp1 have shown great promise in reducing the viability and proliferation of cancer cells. The dynamic regulation of Drp1-mediated mitochondria is closely associated with tumor development, and treatment. Aim: In this article, the authors reviewed the occurrence and progression of mitochondrial fission regulated by Drp1, and its influence on cell cycle, autophagy, apoptosis, migration, invasion, the molecular mechanism of tumor stemness, and metabolic reprogramming. Targeted inhibition of Drp1 and mitochondrial fission could reduce or prevent tumor occurrence and progression in a variety of cancers. Drp1 inhibitors could reduce tumor stemness and enhance tumor sensitivity to chemotherapeutic drugs. Conclusion: Research into identifying compounds that could specifically target Drp1 will be valuable for overcoming drug resistance in tumors.
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Affiliation(s)
- Peiyu Han
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Xinlu Ren
- Department of Clinical Medicine, Queen Mary College of Nanchang University, Nanchang, China
| | - Xiuxia Qu
- Wuxi School of Medicine, Jiangnan University, Wuxi, China
| | - Yiteng Meng
- Department of Gastroenterology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, Guangdong, China
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14
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Fakih W, Mroueh A, Salah H, Eid AH, Obeid M, Kobeissy F, Darwish H, El-Yazbi AF. Dysfunctional cerebrovascular tone contributes to cognitive impairment in a non-obese rat model of prediabetic challenge: Role of suppression of autophagy and modulation by anti-diabetic drugs. Biochem Pharmacol 2020; 178:114041. [DOI: 10.1016/j.bcp.2020.114041] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Accepted: 05/14/2020] [Indexed: 12/16/2022]
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15
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Chang WT, Lo YC, Gao ZH, Wu SN. Evidence for the Capability of Roxadustat (FG-4592), an Oral HIF Prolyl-Hydroxylase Inhibitor, to Perturb Membrane Ionic Currents: An Unidentified yet Important Action. Int J Mol Sci 2019; 20:ijms20236027. [PMID: 31795416 PMCID: PMC6928729 DOI: 10.3390/ijms20236027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/18/2019] [Accepted: 11/25/2019] [Indexed: 12/13/2022] Open
Abstract
Roxadustat (FG-4592), an analog of 2-oxoglutarate, is an orally-administered, heterocyclic small molecule known to be an inhibitor of hypoxia inducible factor (HIF) prolyl hydroxylase. However, none of the studies have thus far thoroughly investigated its possible perturbations on membrane ion currents in endocrine or heart cells. In our studies, the whole-cell current recordings of the patch-clamp technique showed that the presence of roxadustat effectively and differentially suppressed the peak and late components of IK(DR) amplitude in response to membrane depolarization in pituitary tumor (GH3) cells with an IC50 value of 5.71 and 1.32 μM, respectively. The current inactivation of IK(DR) elicited by 10-sec membrane depolarization became raised in the presence of roxadustatt. When cells were exposed to either CoCl2 or deferoxamine (DFO), the IK(DR) elicited by membrane depolarization was not modified; however, nonactin, a K+-selective ionophore, in continued presence of roxadustat, attenuated roxadustat-mediated inhibition of the amplitude. The steady-state inactivation of IK(DR) could be constructed in the presence of roxadustat. Recovery of IK(DR) block by roxadustat (3 and 10 μM) could be fitted by a single exponential with 382 and 523 msec, respectively. The roxadustat addition slightly suppressed erg-mediated K+ or hyperpolarization-activated cation currents. This drug also decreased the peak amplitude of voltage-gated Na+ current with a slowing in inactivation rate of the current. Likewise, in H9c2 heart-derived cells, the addition of roxadustat suppressed IK(DR) amplitude in combination with the shortening in inactivation time course of the current. In high glucose-treated H9c2 cells, roxadustat-mediated inhibition of IK(DR) remained unchanged. Collectively, despite its suppression of HIF prolyl hydroxylase, inhibitory actions of roxadustat on different types of ionic currents possibly in a non-genomic fashion might provide another yet unidentified mechanism through which cellular functions are seriously perturbed, if similar findings occur in vivo.
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Affiliation(s)
- Wei-Ting Chang
- Division of Cardiovascular Medicine, Chi-Mei Medical Center, Tainan 71004 Taiwan;
- Department of Biotechnology, Southern Taiwan University of Science and Technology, Tainan 71004, Taiwan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yi-Ching Lo
- Department of Pharmacology, College of Medicine, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Zi-Han Gao
- Department of Physiology, National Cheng Kung University Medical College, Tainan 70101, Taiwan;
| | - Sheng-Nan Wu
- Department of Physiology, National Cheng Kung University Medical College, Tainan 70101, Taiwan;
- Institute of Basic Medical Sciences, National Cheng Kung University Medical College, Tainan 70101, Taiwan
- Department of Basic Medical Sciences, China Medical University Hospital, Taichung 40402, Taiwan
- Correspondence: ; Tel.: +886-6-2353535-5334/886-6-2362780
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16
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The Mitochondrion as an Emerging Therapeutic Target in Cancer. Trends Mol Med 2019; 26:119-134. [PMID: 31327706 DOI: 10.1016/j.molmed.2019.06.009] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 06/10/2019] [Accepted: 06/14/2019] [Indexed: 12/11/2022]
Abstract
Mitochondria have emerged as important pharmacological targets because of their key role in cellular proliferation and death. In tumor tissues, mitochondria can switch metabolic phenotypes to meet the challenges of high energy demand and macromolecular synthesis. Furthermore, mitochondria can engage in crosstalk with the tumor microenvironment, and signals from cancer-associated fibroblasts can impinge on mitochondria. Cancer cells can also acquire a hybrid phenotype in which both glycolysis and oxidative phosphorylation (OXPHOS) can be utilized. This hybrid phenotype can facilitate metabolic plasticity of cancer cells more specifically in metastasis and therapy-resistance. In light of the metabolic heterogeneity and plasticity of cancer cells that had until recently remained unappreciated, strategies targeting cancer metabolic dependency appear to be promising in the development of novel and effective cancer therapeutics.
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17
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Zhang F, Li R, Yang Y, Shi C, Shen Y, Lu C, Chen Y, Zhou W, Lin A, Yu L, Zhang W, Xue Z, Wang J, Cai Z. Specific Decrease in B-Cell-Derived Extracellular Vesicles Enhances Post-Chemotherapeutic CD8+ T Cell Responses. Immunity 2019; 50:738-750.e7. [DOI: 10.1016/j.immuni.2019.01.010] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Revised: 12/09/2018] [Accepted: 01/22/2019] [Indexed: 01/09/2023]
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18
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Lima AR, Santos L, Correia M, Soares P, Sobrinho-Simões M, Melo M, Máximo V. Dynamin-Related Protein 1 at the Crossroads of Cancer. Genes (Basel) 2018; 9:genes9020115. [PMID: 29466320 PMCID: PMC5852611 DOI: 10.3390/genes9020115] [Citation(s) in RCA: 60] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Revised: 02/13/2018] [Accepted: 02/13/2018] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial dynamics are known to have an important role in so-called age-related diseases, including cancer. Mitochondria is an organelle involved in many key cellular functions and responds to physiologic or stress stimuli by adapting its structure and function. Perhaps the most important structural changes involve mitochondrial dynamics (fission and fusion), which occur in normal cells as well as in cells under dysregulation, such as cancer cells. Dynamin-related protein 1 (DRP1), a member of the dynamin family of guanosine triphosphatases (GTPases), is the key component of mitochondrial fission machinery. Dynamin-related protein 1 is associated with different cell processes such as apoptosis, mitochondrial biogenesis, mitophagy, metabolism, and cell proliferation, differentiation, and transformation. The role of DRP1 in tumorigenesis may seem to be paradoxical, since mitochondrial fission is a key mediator of two very different processes, cellular apoptosis and cell mitosis. Dynamin-related protein 1 has been associated with the development of distinct human cancers, including changes in mitochondrial energetics and cellular metabolism, cell proliferation, and stem cell maintenance, invasion, and promotion of metastases. However, the underlying mechanism for this association is still being explored. Herein, we review the published knowledge on the role of DRP1 in cancer, exploring its interaction with different biological processes in the tumorigenesis context.
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Affiliation(s)
- Ana Rita Lima
- Medical Faculty of University of Porto-FMUP, Porto 4200-135, Portugal.
| | - Liliana Santos
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
- Abel Salazar Biomedical Sciences Institute (ICBAS), University of Porto, Porto 4200-135, Portugal.
| | - Marcelo Correia
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
| | - Paula Soares
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
- Department of Pathology, Medical Faculty of University of Porto (FMUP), Porto 4200-135, Portugal.
| | - Manuel Sobrinho-Simões
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
- Department of Pathology, Medical Faculty of University of Porto (FMUP), Porto 4200-135, Portugal.
- Department of Pathology and Oncology, Centro Hospitalar São João, Porto 4200-135, Portugal.
| | - Miguel Melo
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
- Department of Endocrinology, Diabetes and Metabolism, Centro Hospitalar e Universitário de Coimbra (Coimbra University Hospital Centre), Coimbra 3000-075, Portugal.
- Faculty of Medicine, University of Coimbra, Coimbra 3000-548, Portugal.
| | - Valdemar Máximo
- Cancer Signaling & Metabolism Group, Instituto de Investigação e Inovação em Saúde (Institute for Research and Innovation in Health Sciences) (I3S), University of Porto, Porto 4200-135, Portugal.
- Cancer Signaling & Metabolism Group, Institute of Molecular Pathology and Immunology of the University of Porto (IPATIMUP), Porto 4200-135, Portugal.
- Department of Pathology, Medical Faculty of University of Porto (FMUP), Porto 4200-135, Portugal.
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