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Shan M, Wan H, Ran L, Ye J, Xie W, Lu J, Hu X, Deng S, Zhang W, Chen M, Wang F, Guo Z. Dynasore Alleviates LPS-Induced Acute Lung Injury by Inhibiting NLRP3 Inflammasome-Mediated Pyroptosis. Drug Des Devel Ther 2024; 18:1369-1384. [PMID: 38681210 PMCID: PMC11055558 DOI: 10.2147/dddt.s444408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 04/12/2024] [Indexed: 05/01/2024] Open
Abstract
Background Acute lung injury (ALI) and acute respiratory distress syndrome (ARDS) are clinically severe respiratory disorders without available pharmacological therapies. Dynasore is a cell-permeable molecule that inhibits GTPase activity and exerts protective effects in several disease models. However, whether dynasore can alleviate lipopolysaccharide (LPS)-induced ALI is unknown. This study investigated the effect of dynasore on macrophage activation and explored its potential mechanisms in LPS-induced ALI in vitro and in vivo. Methods Bone marrow-derived macrophages (BMDMs) were activated classically with LPS or subjected to NLRP3 inflammasome activation with LPS+ATP. A mouse ALI model was established by the intratracheal instillation (i.t.) of LPS. The expression of PYD domains-containing protein 3 (NLRP3), caspase-1, and gasdermin D (GSDMD) protein was detected by Western blots. Inflammatory mediators were analyzed in the cell supernatant, in serum and bronchoalveolar lavage fluid (BALF) by enzyme-linked immunosorbent assays. Morphological changes in lung tissues were evaluated by hematoxylin and eosin staining. F4/80, Caspase-1 and GSDMD distribution in lung tissue was detected by immunofluorescence. Results Dynasore downregulated nuclear factor (NF)-κB signaling and reduced proinflammatory cytokine production in vitro and inhibited the production and release of interleukin (IL)-1β, NLRP3 inflammasome activation, and macrophage pyroptosis through the Drp1/ROS/NLRP3 axis. Dynasore significantly reduced lung injury scores and proinflammatory cytokine levels in both BALF and serum in vivo, including IL-1β and IL-6. Dynasore also downregulated the co-expression of F4/80, caspase-1 and GSDMD in lung tissue. Conclusion Collectively, these findings demonstrated that dynasore could alleviate LPS-induced ALI by regulating macrophage pyroptosis, which might provide a new therapeutic strategy for ALI/ARDS.
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Affiliation(s)
- Mengtian Shan
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Huimin Wan
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Linyu Ran
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Jihui Ye
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Wang Xie
- Department of Respiratory Medicine, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, People’s Republic of China
| | - Jingjing Lu
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Xueping Hu
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Shengjie Deng
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Wenyu Zhang
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Miao Chen
- Department of Emergency, The First Affiliated Hospital of Hainan Medical University, Haikou, Hainan, People’s Republic of China
| | - Feilong Wang
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
| | - Zhongliang Guo
- Department of Pulmonary and Critical Care Medicine, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai, People’s Republic of China
- Department of Respiratory Medicine, Ji’an Hospital, Shanghai East Hospital, Shanghai, Jiangxi, People’s Republic of China
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Paradis S, Charles AL, Giannini M, Meyer A, Lejay A, Talha S, Laverny G, Charloux A, Geny B. Targeting Mitochondrial Dynamics during Lower-Limb Ischemia Reperfusion in Young and Old Mice: Effect of Mitochondrial Fission Inhibitor-1 (mDivi-1). Int J Mol Sci 2024; 25:4025. [PMID: 38612835 PMCID: PMC11012338 DOI: 10.3390/ijms25074025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/25/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
Peripheral arterial disease (PAD) strikes more than 200 million people worldwide and has a severe prognosis by potentially leading to limb amputation and/or death, particularly in older patients. Skeletal muscle mitochondrial dysfunctions and oxidative stress play major roles in this disease in relation with ischemia-reperfusion (IR) cycles. Mitochondrial dynamics through impairment of fission-fusion balance may contribute to skeletal muscle pathophysiology, but no data were reported in the setting of lower-limb IR despite the need for new therapeutic options. We, therefore, investigated the potential protective effect of mitochondrial division inhibitor-1 (mDivi-1; 50 mg/kg) in young (23 weeks) and old (83 weeks) mice submitted to two-hour ischemia followed by two-hour reperfusion on systemic lactate, muscle mitochondrial respiration and calcium retention capacity, and on transcripts specific for oxidative stress and mitochondrial dynamics. At the systemic levels, an IR-related increase in circulating lactate was still major despite mDivi-1 use (+305.9% p < 0.0001, and +269.4% p < 0.0001 in young and old mice, respectively). Further, IR-induced skeletal muscle mitochondrial dysfunctions (more severely impaired mitochondrial respiration in old mice (OXPHOS CI state, -68.2% p < 0.0001 and -84.9% p < 0.0001 in 23- and 83-week mice) and reduced calcium retention capacity (-46.1% p < 0.001 and -48.2% p = 0.09, respectively) were not corrected by mDivi-1 preconditioning, whatever the age. Further, mDivi-1 treatment did not oppose superoxide anion production (+71.4% p < 0.0001 and +37.5% p < 0.05, respectively). At the transcript level, markers of antioxidant enzymes (SOD 1, SOD 2, catalase, and GPx) and fission markers (Drp1, Fis) remained unchanged or tended to be decreased in the ischemic leg. Fusion markers such as mitofusin 1 or 2 decreased significantly after IR in both groups. In conclusion, aging enhanced the deleterious effects or IR on muscle mitochondrial respiration, and in this setting of lower-limb IR, mDivi-1 failed to protect the skeletal muscle both in young and old mice.
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Affiliation(s)
- Stéphanie Paradis
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Anne-Laure Charles
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
| | - Margherita Giannini
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Alain Meyer
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Anne Lejay
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Vascular Surgery Department, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Samy Talha
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Gilles Laverny
- Institut de Génétique et de Biologie Moléculaire et Cellulaire (IGBMC), 67400 Illkirch, France;
| | - Anne Charloux
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
| | - Bernard Geny
- Biomedicine Research Center of Strasbourg (CRBS), UR 3072, “Mitochondria, Oxidative Stress and Muscle Plasticity”, Faculty of Medicine, University of Strasbourg, 67081 Strasbourg, France; (S.P.); (A.-L.C.); (M.G.); (A.M.); (A.L.); (S.T.); (A.C.)
- Department of Physiology and Functional Explorations, University Hospital of Strasbourg, 67000 Strasbourg, France
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Salami OM, Habimana O, Peng JF, Yi GH. Therapeutic Strategies Targeting Mitochondrial Dysfunction in Sepsis-induced Cardiomyopathy. Cardiovasc Drugs Ther 2024; 38:163-180. [PMID: 35704247 DOI: 10.1007/s10557-022-07354-8] [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] [Accepted: 06/06/2022] [Indexed: 11/03/2022]
Abstract
Sepsis is an increasingly worldwide problem; it is currently regarded as a complex life-threatening dysfunction of one or more organs as a result of dysregulated host immune response to infections. The heart is one of the most affected organs, as roughly 10% to 70% of sepsis cases are estimated to turn into sepsis-induced cardiomyopathy (SIC). SIC can be defined as a reversible myocardial dysfunction characterized by dilated ventricles, impaired contractility, and decreased ejection fraction. Mitochondria play a critical role in the normal functioning of cardiac tissues as the heart is highly dependent on its production of adenosine triphosphate (ATP), its damage during SIC includes morphology impairment, mitophagy, biogenesis disequilibrium, electron transport chain disturbance, molecular damage from the actions of pro-inflammatory cytokines and many other different impairments that are major contributing factors to the severity of SIC. Although mitochondria-targeted therapies usage is still inadequate in clinical settings, the preclinical study outcomes promise that the implementation of these therapies may effectively treat SIC. This review summarizes the different therapeutic strategies targeting mitochondria structure, quality, and quantity abnormalities for the treatment of SIC.
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Affiliation(s)
| | - Olive Habimana
- International College, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Jin-Fu Peng
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China
| | - Guang-Hui Yi
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hengyang Medical School, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, 28, W Changsheng Road, Hengyang, 421001, Hunan, China.
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Pan J, Pany S, Martinez-Carrasco R, Fini ME. Differential Efficacy of Small Molecules Dynasore and Mdivi-1 for the Treatment of Dry Eye Epitheliopathy or as a Countermeasure for Nitrogen Mustard Exposure of the Ocular Surface. J Pharmacol Exp Ther 2024; 388:506-517. [PMID: 37442618 PMCID: PMC10801785 DOI: 10.1124/jpet.123.001697] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/19/2023] [Accepted: 06/05/2023] [Indexed: 07/15/2023] Open
Abstract
The ocular surface comprises the wet mucosal epithelia of the cornea and conjunctiva, the associated glands, and the overlying tear film. Epitheliopathy is the common pathologic outcome when the ocular surface is subjected to oxidative stress. Whether different stresses act via the same or different mechanisms is not known. Dynasore and dyngo-4a, small molecules developed to inhibit the GTPase activity of classic dynamins DNM1, DNM2, and DNM3, but not mdivi-1, a specific inhibitor of DNM1L, protect corneal epithelial cells exposed to the oxidant tert-butyl hydroperoxide (tBHP). Here we report that, while dyngo-4a is the more potent inhibitor of endocytosis, dynasore is the better cytoprotectant. Dynasore also protects corneal epithelial cells against exposure to high salt in an in vitro model of dysfunctional tears in dry eye. We now validate this finding in vivo, demonstrating that dynasore protects against epitheliopathy in a mouse model of dry eye. Knockdown of classic dynamin DNM2 was also cytoprotective against tBHP exposure, suggesting that dynasore's effect is at least partially on target. Like tBHP and high salt, exposure of corneal epithelial cells to nitrogen mustard upregulated the unfolded protein response and inflammatory markers, but dynasore did not protect against nitrogen mustard exposure. In contrast, mdivi-1 was cytoprotective. Interestingly, mdivi-1 did not inhibit the nitrogen mustard-induced expression of inflammatory cytokines. We conclude that exposure to tBHP or nitrogen mustard, two different oxidative stress agents, cause corneal epitheliopathy via different pathologic pathways. SIGNIFICANCE STATEMENT: Results presented in this paper, for the first time, implicate the dynamin DNM2 in ocular surface epitheliopathy. The findings suggest that dynasore could serve as a new topical treatment for dry eye epitheliopathy and that mdivi-1 could serve as a medical countermeasure for epitheliopathy due to nitrogen mustard exposure, with potentially increased efficacy when combined with anti-inflammatory agents and/or UPR modulators.
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Affiliation(s)
- Jinhong Pan
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - Satyabrata Pany
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - Rafael Martinez-Carrasco
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
| | - M Elizabeth Fini
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine (J.P., S.P., R.M.-C., M.E.F.) and Program in Pharmacology and Drug Development, Tufts Graduate School of Biomedical Sciences (M.E.F.), Tufts University, Boston, Massachusetts
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Song A, Phandthong R, Talbot P. Endocytosis inhibitors block SARS-CoV-2 pseudoparticle infection of mink lung epithelium. Front Microbiol 2023; 14:1258975. [PMID: 38033586 PMCID: PMC10682793 DOI: 10.3389/fmicb.2023.1258975] [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: 07/14/2023] [Accepted: 10/27/2023] [Indexed: 12/02/2023] Open
Abstract
Introduction Both spill over and spill back of SARS-CoV-2 virus have been reported on mink farms in Europe and the United States. Zoonosis is a public health concern as dangerous mutated forms of the virus could be introduced into the human population through spillback. Methods The purpose of our study was to determine the SARS-CoV-2 entry mechanism using the mink lung epithelial cell line (Mv1Lu) and to block entry with drug inhibitors. Results Mv1Lu cells were susceptible to SARS-CoV-2 viral pseudoparticle infection, validating them as a suitable disease model for COVID-19. Inhibitors of TMPRSS2 and of endocytosis, two pathways of viral entry, were tested to identify those that blocked infection. TMPRSS2 inhibitors had minimal impact, which can be explained by the apparent lack of activity of this enzyme in the mink and its localization within the cell, not on the cell surface. Discussion Dyngo4a, a small molecule endocytosis inhibitor, significantly reduced infection, supporting the conclusion that the entry of the SARS-CoV-2 virus into Mv1Lu cells occurs primarily through endocytosis. The small molecule inhibitors that were effective in this study could potentially be used therapeutically to prevent SARS-CoV-2 infection in mink populations. This study will facilitate the development of therapeutics to prevent zoonotic transmission of SARS-CoV-2 variants to other animals, including humans.
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Affiliation(s)
- Ann Song
- Cell, Molecular, and Developmental Biology Graduate Program, University of California, Riverside, Riverside, CA, United States
- Department of Molecular, Cell and Systems Biology, University of California, Riverside, Riverside, CA, United States
| | - Rattapol Phandthong
- Department of Molecular, Cell and Systems Biology, University of California, Riverside, Riverside, CA, United States
| | - Prue Talbot
- Department of Molecular, Cell and Systems Biology, University of California, Riverside, Riverside, CA, United States
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Tokuyama T, Yanagi S. Role of Mitochondrial Dynamics in Heart Diseases. Genes (Basel) 2023; 14:1876. [PMID: 37895224 PMCID: PMC10606177 DOI: 10.3390/genes14101876] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 09/22/2023] [Indexed: 10/29/2023] Open
Abstract
Mitochondrial dynamics, including fission and fusion processes, are essential for heart health. Mitochondria, the powerhouses of cells, maintain their integrity through continuous cycles of biogenesis, fission, fusion, and degradation. Mitochondria are relatively immobile in the adult heart, but their morphological changes due to mitochondrial morphology factors are critical for cellular functions such as energy production, organelle integrity, and stress response. Mitochondrial fusion proteins, particularly Mfn1/2 and Opa1, play multiple roles beyond their pro-fusion effects, such as endoplasmic reticulum tethering, mitophagy, cristae remodeling, and apoptosis regulation. On the other hand, the fission process, regulated by proteins such as Drp1, Fis1, Mff and MiD49/51, is essential to eliminate damaged mitochondria via mitophagy and to ensure proper cell division. In the cardiac system, dysregulation of mitochondrial dynamics has been shown to cause cardiac hypertrophy, heart failure, ischemia/reperfusion injury, and various cardiac diseases, including metabolic and inherited cardiomyopathies. In addition, mitochondrial dysfunction associated with oxidative stress has been implicated in atherosclerosis, hypertension and pulmonary hypertension. Therefore, understanding and regulating mitochondrial dynamics is a promising therapeutic tool in cardiac diseases. This review summarizes the role of mitochondrial morphology in heart diseases for each mitochondrial morphology regulatory gene, and their potential as therapeutic targets to heart diseases.
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Affiliation(s)
- Takeshi Tokuyama
- Division of Regenerative Medicine, Center for Molecular Medicine, Jichi Medical University, Shimotsuke 329-0498, Tochigi, Japan
| | - Shigeru Yanagi
- Laboratory of Molecular Biochemistry, Department of Life Science, Faculty of Science, Gakushuin University, Mejiro, Tokyo 171-0031, Japan;
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Kabra UD, Jastroch M. Mitochondrial Dynamics and Insulin Secretion. Int J Mol Sci 2023; 24:13782. [PMID: 37762083 PMCID: PMC10530730 DOI: 10.3390/ijms241813782] [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: 08/05/2023] [Revised: 08/30/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
Mitochondria are involved in the regulation of cellular energy metabolism, calcium homeostasis, and apoptosis. For mitochondrial quality control, dynamic processes, such as mitochondrial fission and fusion, are necessary to maintain shape and function. Disturbances of mitochondrial dynamics lead to dysfunctional mitochondria, which contribute to the development and progression of numerous diseases, including Type 2 Diabetes (T2D). Compelling evidence has been put forward that mitochondrial dynamics play a significant role in the metabolism-secretion coupling of pancreatic β cells. The disruption of mitochondrial dynamics is linked to defects in energy production and increased apoptosis, ultimately impairing insulin secretion and β cell death. This review provides an overview of molecular mechanisms controlling mitochondrial dynamics, their dysfunction in pancreatic β cells, and pharmaceutical agents targeting mitochondrial dynamic proteins, such as mitochondrial division inhibitor-1 (mdivi-1), dynasore, P110, and 15-oxospiramilactone (S3).
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Affiliation(s)
- Uma D. Kabra
- Department of Pharmaceutical Chemistry, Parul Institute of Pharmacy, Parul University, Vadodara 391760, India;
| | - Martin Jastroch
- The Arrhenius Laboratories F3, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, SE-106 91 Stockholm, Sweden
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Yu T, Wang L, Zhang L, Deuster PA. Mitochondrial Fission as a Therapeutic Target for Metabolic Diseases: Insights into Antioxidant Strategies. Antioxidants (Basel) 2023; 12:1163. [PMID: 37371893 DOI: 10.3390/antiox12061163] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/22/2023] [Accepted: 05/25/2023] [Indexed: 06/29/2023] Open
Abstract
Mitochondrial fission is a crucial process in maintaining metabolic homeostasis in normal physiology and under conditions of stress. Its dysregulation has been associated with several metabolic diseases, including, but not limited to, obesity, type 2 diabetes (T2DM), and cardiovascular diseases. Reactive oxygen species (ROS) serve a vital role in the genesis of these conditions, and mitochondria are both the main sites of ROS production and the primary targets of ROS. In this review, we explore the physiological and pathological roles of mitochondrial fission, its regulation by dynamin-related protein 1 (Drp1), and the interplay between ROS and mitochondria in health and metabolic diseases. We also discuss the potential therapeutic strategies of targeting mitochondrial fission through antioxidant treatments for ROS-induced conditions, including the effects of lifestyle interventions, dietary supplements, and chemicals, such as mitochondrial division inhibitor-1 (Mdivi-1) and other mitochondrial fission inhibitors, as well as certain commonly used drugs for metabolic diseases. This review highlights the importance of understanding the role of mitochondrial fission in health and metabolic diseases, and the potential of targeting mitochondrial fission as a therapeutic approach to protecting against these conditions.
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Affiliation(s)
- Tianzheng Yu
- Consortium for Health and Military Performance, Department of Military and Emergency Medicine, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
| | - Li Wang
- Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD 20817, USA
- Armed Forces Radiobiology Research Institute, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
- Department of Pathology, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
| | - Lei Zhang
- Center for the Study of Traumatic Stress, Department of Psychiatry, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - Patricia A Deuster
- Consortium for Health and Military Performance, Department of Military and Emergency Medicine, F. Edward Hébert School of Medicine, Uniformed Services University, Bethesda, MD 20814, USA
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Huang Y, Zhou B. Mitochondrial Dysfunction in Cardiac Diseases and Therapeutic Strategies. Biomedicines 2023; 11:biomedicines11051500. [PMID: 37239170 DOI: 10.3390/biomedicines11051500] [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: 03/20/2023] [Revised: 05/15/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
Mitochondria are the main site of intracellular synthesis of ATP, which provides energy for various physiological activities of the cell. Cardiomyocytes have a high density of mitochondria and mitochondrial damage is present in a variety of cardiovascular diseases. In this paper, we describe mitochondrial damage in mitochondrial cardiomyopathy, congenital heart disease, coronary heart disease, myocardial ischemia-reperfusion injury, heart failure, and drug-induced cardiotoxicity, in the context of the key roles of mitochondria in cardiac development and homeostasis. Finally, we discuss the main current therapeutic strategies aimed at alleviating mitochondrial impairment-related cardiac dysfunction, including pharmacological strategies, gene therapy, mitochondrial replacement therapy, and mitochondrial transplantation. It is hoped that this will provide new ideas for the treatment of cardiovascular diseases.
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Affiliation(s)
- Yafei Huang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing 100037, China
| | - Bingying Zhou
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Science and Peking Union Medical College, 167 North Lishi Road, Xicheng District, Beijing 100037, China
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Liu X, Guo C, Zhang Q. Novel insights into the involvement of mitochondrial fission/fusion in heart failure: From molecular mechanisms to targeted therapies. Cell Stress Chaperones 2023; 28:133-144. [PMID: 36652120 PMCID: PMC10050249 DOI: 10.1007/s12192-023-01321-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 01/04/2023] [Accepted: 01/08/2023] [Indexed: 01/19/2023] Open
Abstract
Mitochondria are dynamic organelles that alter their morphology through fission (fragmentation) and fusion (elongation). These morphological changes correlate highly with mitochondrial functional adaptations to stressors, such as hypoxia, pressure overload, and inflammation, and are important in the setting of heart failure. Pathological mitochondrial remodeling, characterized by increased fission and reduced fusion, is associated with impaired mitochondrial respiration, increased mitochondrial oxidative stress, abnormal cytoplasmic calcium handling, and increased cardiomyocyte apoptosis. Considering the impact of the mitochondrial morphology on mitochondrial behavior and cardiomyocyte performance, altered mitochondrial dynamics could be expected to induce or exacerbate the pathogenesis and progression of heart failure. However, whether alterations in mitochondrial fission and fusion accelerate or retard the progression of heart failure has been the subject of intense debate. In this review, we first describe the physiological processes and regulatory mechanisms of mitochondrial fission and fusion. Then, we extensively discuss the pathological contributions of mitochondrial fission and fusion to heart failure. Lastly, we examine potential therapeutic approaches targeting mitochondrial fission/fusion to treat patients with heart failure.
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Affiliation(s)
- Xinxin Liu
- Department of First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China
| | - Chenchen Guo
- Neck, Shoulder, Waist and Leg Pain Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Qiming Zhang
- Department of First College of Clinical Medicine, Shandong University of Traditional Chinese Medicine, Jinan, Shandong Province, China.
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Martinez-Carrasco R, Fini ME. Dynasore Protects Corneal Epithelial Cells Subjected to Hyperosmolar Stress in an In Vitro Model of Dry Eye Epitheliopathy. Int J Mol Sci 2023; 24:ijms24054754. [PMID: 36902183 PMCID: PMC10003680 DOI: 10.3390/ijms24054754] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/19/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Epitheliopathy at the ocular surface is a defining sign of dry eye disease, a common disorder that affects 10% to 30% of the world's population. Hyperosmolarity of the tear film is one of the main drivers of pathology, with subsequent endoplasmic reticulum (ER) stress, the resulting unfolded protein response (UPR), and caspase-3 activation implicated in the pathway to programmed cell death. Dynasore, is a small molecule inhibitor of dynamin GTPases that has shown therapeutic effects in a variety of disease models involving oxidative stress. Recently we showed that dynasore protects corneal epithelial cells exposed to the oxidant tBHP, by selective reduction in expression of CHOP, a marker of the UPR PERK branch. Here we investigated the capacity of dynasore to protect corneal epithelial cells subjected to hyperosmotic stress (HOS). Similar to dynasore's capacity to protect against tBHP exposure, dynasore inhibits the cell death pathway triggered by HOS, protecting against ER stress and maintaining a homeostatic level of UPR activity. However, unlike with tBHP exposure, UPR activation due to HOS is independent of PERK and mostly driven by the UPR IRE1 branch. Our results demonstrate the role of the UPR in HOS-driven damage, and the potential of dynasore as a treatment to prevent dry eye epitheliopathy.
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Affiliation(s)
- Rafael Martinez-Carrasco
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine, Boston, MA 02111, USA
- Correspondence: (R.M.-C.); (M.E.F.)
| | - M. Elizabeth Fini
- New England Eye Center, Tufts Medical Center and Department of Ophthalmology, Tufts University School of Medicine, Boston, MA 02111, USA
- Graduate School of Biomedical Sciences, Tufts University, Boston, MA 02111, USA
- Correspondence: (R.M.-C.); (M.E.F.)
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12
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Chemical inhibition of mitochondrial fission improves insulin signaling and subdues hyperglycemia induced stress in placental trophoblast cells. Mol Biol Rep 2023; 50:493-506. [PMID: 36352179 DOI: 10.1007/s11033-022-07959-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 09/17/2022] [Indexed: 11/10/2022]
Abstract
BACKGROUND Gestational diabetes mellitus (GDM) is a metabolic complication that affects millions of pregnant women in the world. Placental tissue function is endangered by hyperglycemia during GDM, which is correlated to increased incidences of pregnancy complications. Recently we showed that due to a significant decrease in mitochondrial fusion, mitochondrial dynamics equilibrium is altered in placental tissues from GDM patients. Evidence for the role of reduced mitochondrial fusion in the disruption of mitochondrial function in placental cells is limited. METHODS AND RESULTS Here we show that chemical inhibition of mitochondrial fission in cultured placental trophoblast cells leads to an increase in mitochondrial fusion and improves the physiological state of these cells and hence, their capacity to cope in a hyperglycemic environment. Specifically, mitochondrial fission inhibition led to a reduction in reactive oxygen species (ROS) generation, mitochondrial unfolded protein marker expressions, and mitochondrial depolarization. It supported the increase in mitochondrial antioxidant enzyme expressions as well. Mitochondrial fission inhibition also increases the placental cell insulin sensitivity during hyperglycemia. CONCLUSION Our results suggest that mitochondrial fusion/fission equilibrium is critical for placental cell function and signify the therapeutic potential of small molecule inhibitors of fission during GDM.
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13
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Atlante A, Amadoro G, Latina V, Valenti D. Therapeutic Potential of Targeting Mitochondria for Alzheimer's Disease Treatment. J Clin Med 2022; 11:jcm11226742. [PMID: 36431219 PMCID: PMC9697019 DOI: 10.3390/jcm11226742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/11/2022] [Accepted: 11/11/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD), a chronic and progressive neurodegenerative disease, is characterized by memory and cognitive impairment and by the accumulation in the brain of abnormal proteins, more precisely beta-amyloid (β-amyloid or Aβ) and Tau proteins. Studies aimed at researching pharmacological treatments against AD have focused precisely on molecules capable, in one way or another, of preventing/eliminating the accumulations of the aforementioned proteins. Unfortunately, more than 100 years after the discovery of the disease, there is still no effective therapy in modifying the biology behind AD and nipping the disease in the bud. This state of affairs has made neuroscientists suspicious, so much so that for several years the idea has gained ground that AD is not a direct neuropathological consequence taking place downstream of the deposition of the two toxic proteins, but rather a multifactorial disease, including mitochondrial dysfunction as an early event in the pathogenesis of AD, occurring even before clinical symptoms. This is the reason why the search for pharmacological agents capable of normalizing the functioning of these subcellular organelles of vital importance for nerve cells is certainly to be considered a promising approach to the design of effective neuroprotective drugs aimed at preserving this organelle to arrest or delay the progression of the disease. Here, our intent is to provide an updated overview of the mitochondrial alterations related to this disorder and of the therapeutic strategies (both natural and synthetic) targeting mitochondrial dysfunction.
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Affiliation(s)
- Anna Atlante
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM)-CNR, Via G. Amendola122/O, 70126 Bari, Italy
- Correspondence: (A.A.); (D.V.); Tel.: +39-080-5929804 (A.A.); +39-080-5929805 (D.V.)
| | - Giuseppina Amadoro
- Institute of Translational Pharmacology (IFT)-CNR, Via Fosso del Cavaliere 100, 00133 Rome, Italy
| | - Valentina Latina
- European Brain Research Institute (EBRI), Viale Regina Elena 295, 00161 Rome, Italy
| | - Daniela Valenti
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies (IBIOM)-CNR, Via G. Amendola122/O, 70126 Bari, Italy
- Correspondence: (A.A.); (D.V.); Tel.: +39-080-5929804 (A.A.); +39-080-5929805 (D.V.)
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14
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Chang X, Toan S, Li R, Zhou H. Therapeutic strategies in ischemic cardiomyopathy: Focus on mitochondrial quality surveillance. EBioMedicine 2022; 84:104260. [PMID: 36122552 PMCID: PMC9490489 DOI: 10.1016/j.ebiom.2022.104260] [Citation(s) in RCA: 50] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 08/12/2022] [Accepted: 08/24/2022] [Indexed: 11/23/2022] Open
Abstract
Despite considerable efforts to prevent and treat ischemic cardiomyopathy (ICM), effective therapies remain lacking, in part owing to the complexity of the underlying molecular mechanisms, which are not completely understood yet. It is now widely thought that mitochondria serve as “sentinel” organelles that are capable of detecting cellular injury and integrating multiple stress signals. These pathophysiological activities are temporally and spatially governed by the mitochondrial quality surveillance (MQS) system, involving mitochondrial dynamics, mitophagy, and biogenesis. Dysregulation of MQS is an early and critical process contributing to mitochondrial bioenergetic dysfunction and sublethal injury to cardiomyocytes during ICM. An improved understanding of the pathogenesis of ICM may enable the development of novel preventive and therapeutic strategies aimed at overcoming the challenge of myocardial ischemia and its cardiovascular sequelae. This review describes recent research on the protective effects of MQS in ICM and highlights promising therapeutic targets.
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15
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Macrophage Polarization Mediated by Mitochondrial Dysfunction Induces Adipose Tissue Inflammation in Obesity. Int J Mol Sci 2022; 23:ijms23169252. [PMID: 36012516 PMCID: PMC9409464 DOI: 10.3390/ijms23169252] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/10/2022] [Accepted: 08/12/2022] [Indexed: 12/06/2022] Open
Abstract
Obesity is one of the prominent global health issues, contributing to the growing prevalence of insulin resistance and type 2 diabetes. Chronic inflammation in adipose tissue is considered as a key risk factor for the development of insulin resistance and type 2 diabetes in obese individuals. Macrophages are the most abundant immune cells in adipose tissue and play an important role in adipose tissue inflammation. Mitochondria are critical for regulating macrophage polarization, differentiation, and survival. Changes to mitochondrial metabolism and physiology induced by extracellular signals may underlie the corresponding state of macrophage activation. Macrophage mitochondrial dysfunction is a key mediator of obesity-induced macrophage inflammatory response and subsequent systemic insulin resistance. Mitochondrial dysfunction drives the activation of the NLRP3 inflammasome, which induces the release of IL-1β. IL-1β leads to decreased insulin sensitivity of insulin target cells via paracrine signaling or infiltration into the systemic circulation. In this review, we discuss the new findings on how obesity induces macrophage mitochondrial dysfunction and how mitochondrial dysfunction induces NLRP3 inflammasome activation. We also summarize therapeutic approaches targeting mitochondria for the treatment of diabetes.
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16
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Mazumder S, Bindu S, De R, Debsharma S, Pramanik S, Bandyopadhyay U. Emerging role of mitochondrial DAMPs, aberrant mitochondrial dynamics and anomalous mitophagy in gut mucosal pathogenesis. Life Sci 2022; 305:120753. [PMID: 35787999 DOI: 10.1016/j.lfs.2022.120753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Revised: 06/13/2022] [Accepted: 06/27/2022] [Indexed: 12/22/2022]
Abstract
Gastroduodenal inflammation and ulcerative injuries are increasing due to expanding socio-economic stress, unhealthy food habits-lifestyle, smoking, alcoholism and usage of medicines like non-steroidal anti-inflammatory drugs. In fact, gastrointestinal (GI) complications, associated with the prevailing COVID-19 pandemic, further, poses a challenge to global healthcare towards safeguarding the GI tract. Emerging evidences have discretely identified mitochondrial dysfunctions as common etiological denominators in diseases. However, it is worth realizing that mitochondrial dysfunctions are not just consequences of diseases. Rather, damaged mitochondria severely aggravate the pathogenesis thereby qualifying as perpetrable factors worth of prophylactic and therapeutic targeting. Oxidative and nitrosative stress due to endogenous and exogenous stimuli triggers mitochondrial injury causing production of mitochondrial damage associated molecular patterns (mtDAMPs), which, in a feed-forward loop, inflicts inflammatory tissue damage. Mitochondrial structural dynamics and mitophagy are crucial quality control parameters determining the extent of mitopathology and disease outcomes. Interestingly, apart from endogenous factors, mitochondria also crosstalk and in turn get detrimentally affected by gut pathobionts colonized during luminal dysbiosis. Although mitopathology is documented in various pre-clinical/clinical studies, a comprehensive account appreciating the mitochondrial basis of GI mucosal pathologies is largely lacking. Here we critically discuss the molecular events impinging on mitochondria along with the interplay of mitochondria-derived factors in fueling mucosal pathogenesis. We specifically emphasize on the potential role of aberrant mitochondrial dynamics, anomalous mitophagy, mitochondrial lipoxidation and ferroptosis as emerging regulators of GI mucosal pathogenesis. We finally discuss about the prospect of mitochondrial targeting for next-generation drug discovery against GI disorders.
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Affiliation(s)
- Somnath Mazumder
- Department of Zoology, Raja Peary Mohan College, 1 Acharya Dhruba Pal Road, Uttarpara, West Bengal 712258, India
| | - Samik Bindu
- Department of Zoology, Cooch Behar Panchanan Barma University, Cooch Behar, West Bengal 736101, India
| | - Rudranil De
- Amity Institute of Biotechnology, Amity University, Kolkata, Plot No: 36, 37 & 38, Major Arterial Road, Action Area II, Kadampukur Village, Newtown, Kolkata, West Bengal 700135, India
| | - Subhashis Debsharma
- Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Saikat Pramanik
- Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India
| | - Uday Bandyopadhyay
- Division of Infectious Diseases and Immunology, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata, West Bengal 700032, India; Division of Molecular Medicine, Bose Institute, EN 80, Sector V, Bidhan Nagar, Kolkata, West Bengal 700091, India.
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17
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Vezza T, Díaz-Pozo P, Canet F, de Marañón AM, Abad-Jiménez Z, García-Gargallo C, Roldan I, Solá E, Bañuls C, López-Domènech S, Rocha M, Víctor VM. The Role of Mitochondrial Dynamic Dysfunction in Age-Associated Type 2 Diabetes. World J Mens Health 2022; 40:399-411. [PMID: 35021300 PMCID: PMC9253806 DOI: 10.5534/wjmh.210146] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/01/2021] [Accepted: 09/06/2021] [Indexed: 11/15/2022] Open
Abstract
Mitochondrial dynamics, such as fusion and fission, play a critical role in maintaining cellular metabolic homeostasis. The molecular mechanisms underlying these processes include fusion proteins (Mitofusin 1 [MFN1], Mitofusin 2 [MFN2], and optic atrophy 1 [OPA1]) and fission mediators (mitochondrial fission 1 [FIS1] and dynamin-related protein 1 [DRP1]), which interact with each other to ensure mitochondrial quality control. Interestingly, defects in these proteins can lead to the loss of mitochondrial DNA (mtDNA) integrity, impairment of mitochondrial function, a severe alteration of mitochondrial morphology, and eventually cell death. Emerging evidence has revealed a causal relationship between dysregulation of mitochondria dynamics and age-associated type 2 diabetes, a metabolic disease whose rates have reached an alarming epidemic-like level with the majority of cases (59%) recorded in men aged 65 and over. In this sense, fragmentation of mitochondrial networks is often associated with defects in cellular energy production and increased apoptosis, leading, in turn, to excessive reactive oxygen species release, mitochondrial dysfunction, and metabolic alterations, which can ultimately contribute to β-cell dysfunction and insulin resistance. The present review discusses the processes of mitochondrial fusion and fission and their dysfunction in type 2 diabetes, with special attention given to the therapeutic potential of targeting mitochondrial dynamics in this complex metabolic disorder.
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Affiliation(s)
- Teresa Vezza
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Pedro Díaz-Pozo
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Francisco Canet
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Aranzazu M de Marañón
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Zaida Abad-Jiménez
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Celia García-Gargallo
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Ildefonso Roldan
- Service of Cardiology, University Hospital Doctor Peset, FISABIO, Valencia, Spain
| | - Eva Solá
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Celia Bañuls
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain.
| | - Sandra López-Domènech
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Milagros Rocha
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
- National Network of Biomedical Research on Hepatic and Digestive Diseases (CIBERehd), Valencia, Spain.
| | - Víctor M Víctor
- Service of Endocrinology and Nutrition, University Hospital Doctor Peset, Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
- National Network of Biomedical Research on Hepatic and Digestive Diseases (CIBERehd), Valencia, Spain
- Department of Physiology, University of Valencia, Valencia, Spain.
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18
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Fajardo G, Coronado M, Matthews M, Bernstein D. Mitochondrial Quality Control in the Heart: The Balance between Physiological and Pathological Stress. Biomedicines 2022; 10:biomedicines10061375. [PMID: 35740401 PMCID: PMC9220167 DOI: 10.3390/biomedicines10061375] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 06/02/2022] [Accepted: 06/06/2022] [Indexed: 12/12/2022] Open
Abstract
Alterations in mitochondrial function and morphology are critical adaptations to cardiovascular stress, working in concert in an attempt to restore organelle-level and cellular-level homeostasis. Processes that alter mitochondrial morphology include fission, fusion, mitophagy, and biogenesis, and these interact to maintain mitochondrial quality control. Not all cardiovascular stress is pathologic (e.g., ischemia, pressure overload, cardiotoxins), despite a wealth of studies to this effect. Physiological stress, such as that induced by aerobic exercise, can induce morphologic adaptations that share many common pathways with pathological stress, but in this case result in improved mitochondrial health. Developing a better understanding of the mechanisms underlying alterations in mitochondrial quality control under diverse cardiovascular stressors will aid in the development of pharmacologic interventions aimed at restoring cellular homeostasis.
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Affiliation(s)
- Giovanni Fajardo
- Department of Pediatrics and the Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA;
| | | | - Melia Matthews
- Department of Biomedical and Biological Sciences, Cornell University, Ithaca, NY 14850, USA;
| | - Daniel Bernstein
- Department of Pediatrics and the Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA;
- Correspondence: ; Tel.: +1-650-723-7913
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19
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Peng JF, Salami OM, Lei C, Ni D, Habimana O, Yi GH. Targeted mitochondrial drugs for treatment of Myocardial ischemia-reperfusion injury. J Drug Target 2022; 30:833-844. [PMID: 35652502 DOI: 10.1080/1061186x.2022.2085728] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Myocardial ischemia-reperfusion injury (MI/RI) refers to the further damage done to ischemic cardiomyocytes when restoring blood flow. A large body of evidence shows that MI/RI is closely associated with excessive production of mitochondrial reactive oxygen species, mitochondrial calcium overload, disordered mitochondrial energy metabolism, mitophagy, mitochondrial fission, and mitochondrial fusion. According to the way it affects mitochondria, it can be divided into mitochondrial quality abnormalities and mitochondrial quantity abnormalities. Abnormal mitochondrial quality refers to the dysfunction caused by the severe destruction of mitochondria, which then affects the balance of mitochondrial density and number, causing an abnormal mitochondrial quantity. In the past, most of the reports were limited to the study of the mechanism of myocardial ischemia-reperfusion injury, some of which involved mitochondria, but no specific countermeasures were proposed. In this review, we outline the mechanisms for treating myocardial ischemia-reperfusion injury from the direction of mitochondria and focus on targeted interventions and drugs to restore mitochondrial health during abnormal mitochondrial quality control and abnormal mitochondrial quantity control. This is an update in the field of myocardial ischemia-reperfusion injury.
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Affiliation(s)
- Jin-Fu Peng
- Institute of Pharmacy and Pharmacology, Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, 421001, China.,Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | | | - Cai Lei
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Dan Ni
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
| | - Olive Habimana
- International College, University of South China, 28 W Changsheng Road, Hengyang, Hunan 421001, China
| | - Guang-Hui Yi
- Institute of Pharmacy and Pharmacology, Hunan province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, Hunan, 421001, China.,Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, China
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20
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Yang J, Guo Q, Feng X, Liu Y, Zhou Y. Mitochondrial Dysfunction in Cardiovascular Diseases: Potential Targets for Treatment. Front Cell Dev Biol 2022; 10:841523. [PMID: 35646910 PMCID: PMC9140220 DOI: 10.3389/fcell.2022.841523] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 04/13/2022] [Indexed: 12/20/2022] Open
Abstract
Cardiovascular diseases (CVDs) are serious public health issues and are responsible for nearly one-third of global deaths. Mitochondrial dysfunction is accountable for the development of most CVDs. Mitochondria produce adenosine triphosphate through oxidative phosphorylation and inevitably generate reactive oxygen species (ROS). Excessive ROS causes mitochondrial dysfunction and cell death. Mitochondria can protect against these damages via the regulation of mitochondrial homeostasis. In recent years, mitochondria-targeted therapy for CVDs has attracted increasing attention. Various studies have confirmed that clinical drugs (β-blockers, angiotensin-converting enzyme inhibitors/angiotensin receptor-II blockers) against CVDs have mitochondrial protective functions. An increasing number of cardiac mitochondrial targets have shown their cardioprotective effects in experimental and clinical studies. Here, we briefly introduce the mechanisms of mitochondrial dysfunction and summarize the progression of mitochondrial targets against CVDs, which may provide ideas for experimental studies and clinical trials.
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21
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Deng Y, Ngo DTM, Holien JK, Lees JG, Lim SY. Mitochondrial Dynamin-Related Protein Drp1: a New Player in Cardio-oncology. Curr Oncol Rep 2022; 24:1751-1763. [PMID: 36181612 PMCID: PMC9715477 DOI: 10.1007/s11912-022-01333-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/29/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE OF REVIEW This study is aimed at reviewing the recent progress in Drp1 inhibition as a novel approach for reducing doxorubicin-induced cardiotoxicity and for improving cancer treatment. RECENT FINDINGS Anthracyclines (e.g. doxorubicin) are one of the most common and effective chemotherapeutic agents to treat a variety of cancers. However, the clinical usage of doxorubicin has been hampered by its severe cardiotoxic side effects leading to heart failure. Mitochondrial dysfunction is one of the major aetiologies of doxorubicin-induced cardiotoxicity. The morphology of mitochondria is highly dynamic, governed by two opposing processes known as fusion and fission, collectively known as mitochondrial dynamics. An imbalance in mitochondrial dynamics is often reported in tumourigenesis which can lead to adaptive and acquired resistance to chemotherapy. Drp1 is a key mitochondrial fission regulator, and emerging evidence has demonstrated that Drp1-mediated mitochondrial fission is upregulated in both cancer cells to their survival advantage and injured heart tissue in the setting of doxorubicin-induced cardiotoxicity. Effective treatment to prevent and mitigate doxorubicin-induced cardiotoxicity is currently not available. Recent advances in cardio-oncology have highlighted that Drp1 inhibition holds great potential as a targeted mitochondrial therapy for doxorubicin-induced cardiotoxicity.
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Affiliation(s)
- Yali Deng
- Department of Surgery and Medicine, University of Melbourne, Melbourne, Victoria Australia ,O’Brien Institute Department, St Vincent’s Institute of Medical Research, Fitzroy, Victoria Australia
| | - Doan T. M. Ngo
- School of Biomedical Science and Pharmacy, College of Health, Medicine and Wellbeing, Hunter Medical Research Institute & University of Newcastle, New Lambton Heights, New South Wales Australia
| | - Jessica K. Holien
- Department of Surgery and Medicine, University of Melbourne, Melbourne, Victoria Australia ,School of Science, STEM College, RMIT University, Melbourne, Victoria Australia
| | - Jarmon G. Lees
- Department of Surgery and Medicine, University of Melbourne, Melbourne, Victoria Australia ,O’Brien Institute Department, St Vincent’s Institute of Medical Research, Fitzroy, Victoria Australia
| | - Shiang Y. Lim
- Department of Surgery and Medicine, University of Melbourne, Melbourne, Victoria Australia ,O’Brien Institute Department, St Vincent’s Institute of Medical Research, Fitzroy, Victoria Australia ,Drug Discovery Biology, Faculty of Pharmacy and Pharmaceutical Sciences, Monash University, Melbourne, Victoria Australia ,National Heart Research Institute Singapore, National Heart Centre, Singapore, Singapore
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22
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Zou W, Ji D, Zhang Z, Yang L, Cao Y. Players in Mitochondrial Dynamics and Female Reproduction. Front Mol Biosci 2021; 8:717328. [PMID: 34708072 PMCID: PMC8542886 DOI: 10.3389/fmolb.2021.717328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 09/07/2021] [Indexed: 01/16/2023] Open
Abstract
Mitochondrial dynamics (fission and fusion) are essential physiological processes for mitochondrial metabolic function, mitochondrial redistribution, and mitochondrial quality control. Various proteins are involved in regulating mitochondrial dynamics. Aberrant expression of these proteins interferes with mitochondrial dynamics and induces a range of diseases. Multiple therapeutic approaches have been developed to treat the related diseases in recent years, but their curative effects are limited. Meanwhile, the role of mitochondrial dynamics in female reproductive function has attracted progressively more attention, including oocyte development and maturation, fertilization, and embryonic development. Here, we reviewed the significance of mitochondrial dynamics, proteins involved in mitochondrial dynamics, and disorders resulting from primary mitochondrial dynamic dysfunction. We summarized the latest therapeutic approaches of hereditary mitochondrial fusion-fission abnormalities and reviewed the recent advances in female reproductive mitochondrial dynamics.
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Affiliation(s)
- Weiwei Zou
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China.,Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China
| | - Dongmei Ji
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Reproductive Health and Genetics, Hefei, China.,Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, Hefei, China
| | - Zhiguo Zhang
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,Anhui Province Key Laboratory of Reproductive Health and Genetics, Hefei, China.,Biopreservation and Artificial Organs, Anhui Provincial Engineering Research Center, Anhui Medical University, Hefei, China
| | - Li Yang
- Department of Pediatrics, Xiangya Hospital, Central South University, Changsha, China
| | - Yunxia Cao
- Reproductive Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Anhui Medical University, Hefei, China.,NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract (Anhui Medical University), Hefei, China.,Key Laboratory of Population Health Across Life Cycle (Anhui Medical University), Ministry of Education of the People's Republic of China, Hefei, China
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23
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Kumar S, Ashraf R, C K A. Mitochondrial dynamics regulators: implications for therapeutic intervention in cancer. Cell Biol Toxicol 2021; 38:377-406. [PMID: 34661828 DOI: 10.1007/s10565-021-09662-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Accepted: 09/24/2021] [Indexed: 02/06/2023]
Abstract
Regardless of the recent advances in therapeutic developments, cancer is still among the primary causes of death globally, indicating the need for alternative therapeutic strategies. Mitochondria, a dynamic organelle, continuously undergo the fusion and fission processes to meet cell requirements. The balanced fission and fusion processes, referred to as mitochondrial dynamics, coordinate mitochondrial shape, size, number, energy metabolism, cell cycle, mitophagy, and apoptosis. An imbalance between these opposing events alters mitochondWangrial dynamics, affects the overall mitochondrial shape, and deregulates mitochondrial function. Emerging evidence indicates that alteration of mitochondrial dynamics contributes to various aspects of tumorigenesis and cancer progression. Therefore, targeting the mitochondrial dynamics regulator could be a potential therapeutic approach for cancer treatment. This review will address the role of imbalanced mitochondrial dynamics in mitochondrial dysfunction during cancer progression. We will outline the clinical significance of mitochondrial dynamics regulators in various cancer types with recent updates in cancer stemness and chemoresistance and its therapeutic potential and clinical utility as a predictive biomarker.
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Affiliation(s)
- Sanjay Kumar
- Division of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Karkambadi Road, Rami Reddy Nagar, Mangalam, Tirupati, Andhra Pradesh, 517507, India.
| | - Rahail Ashraf
- Division of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Karkambadi Road, Rami Reddy Nagar, Mangalam, Tirupati, Andhra Pradesh, 517507, India
| | - Aparna C K
- Division of Biology, Indian Institute of Science Education and Research (IISER) Tirupati, Karkambadi Road, Rami Reddy Nagar, Mangalam, Tirupati, Andhra Pradesh, 517507, India
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Jia J, Jin H, Nan D, Yu W, Huang Y. New insights into targeting mitochondria in ischemic injury. Apoptosis 2021; 26:163-183. [PMID: 33751318 DOI: 10.1007/s10495-021-01661-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/19/2021] [Indexed: 12/15/2022]
Abstract
Stroke is the leading cause of adult disability and death worldwide. Mitochondrial dysfunction has been recognized as a marker of neuronal death during ischemic stroke. Maintaining the function of mitochondria is important for improving the survival of neurons and maintaining neuronal function. Damaged mitochondria induce neuronal cell apoptosis by releasing reactive oxygen species (ROS) and pro-apoptotic factors. Mitochondrial fission and fusion processes and mitophagy are of great importance to mitochondrial quality control. This paper reviews the dynamic changes in mitochondria, the roles of mitochondria in different cell types, and related signaling pathways in ischemic stroke. This review describes in detail the role of mitochondria in the process of neuronal injury and protection in cerebral ischemia, and integrates neuroprotective drugs targeting mitochondria in recent years, which may provide a theoretical basis for the progress of treatment of ischemic stroke. The potential of mitochondrial-targeted therapy is also emphasized, which provides valuable insights for clinical research.
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Affiliation(s)
- Jingjing Jia
- Department of Neurology, Peking University First Hospital, No.8 Xishiku Street, Xicheng District, Beijing, 100034, China
| | - Haiqiang Jin
- Department of Neurology, Peking University First Hospital, No.8 Xishiku Street, Xicheng District, Beijing, 100034, China
| | - Ding Nan
- Department of Neurology, Peking University First Hospital, No.8 Xishiku Street, Xicheng District, Beijing, 100034, China
| | - Weiwei Yu
- Department of Neurology, Peking University First Hospital, No.8 Xishiku Street, Xicheng District, Beijing, 100034, China
| | - Yining Huang
- Department of Neurology, Peking University First Hospital, No.8 Xishiku Street, Xicheng District, Beijing, 100034, China.
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25
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Li J, Richmond B, Hong T. Cardiac T-Tubule cBIN1-Microdomain, a Diagnostic Marker and Therapeutic Target of Heart Failure. Int J Mol Sci 2021; 22:ijms22052299. [PMID: 33669042 PMCID: PMC7956774 DOI: 10.3390/ijms22052299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/19/2021] [Accepted: 02/22/2021] [Indexed: 12/23/2022] Open
Abstract
Since its first identification as a cardiac transverse tubule (t-tubule) protein, followed by the cloning of the cardiac isoform responsible for t-tubule membrane microdomain formation, cardiac bridging integrator 1 (cBIN1) and its organized microdomains have emerged as a key mechanism in maintaining normal beat-to-beat heart contraction and relaxation. The abnormal remodeling of cBIN1-microdomains occurs in stressed and diseased cardiomyocytes, contributing to the pathophysiology of heart failure. Due to the homeostatic turnover of t-tubule cBIN1-microdomains via microvesicle release into the peripheral circulation, plasma cBIN1 can be assayed as a liquid biopsy of cardiomyocyte health. A new blood test cBIN1 score (CS) has been developed as a dimensionless inverse index derived from plasma cBIN1 concentration with a diagnostic and prognostic power for clinical outcomes in stable ambulatory patients with heart failure with reduced or preserved ejection fraction (HFrEF or HFpEF). Recent evidence further indicates that exogenous cBIN1 introduced by adeno-associated virus 9-based gene therapy can rescue cardiac contraction and relaxation in failing hearts. The therapeutic potential of cBIN1 gene therapy is enormous given its ability to rescue cardiac inotropy and provide lusitropic protection in the meantime. These unprecedented capabilities of cBIN1 gene therapy are shifting the current paradigm of therapy development for heart failure, particularly HFpEF.
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Affiliation(s)
- Jing Li
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA; (J.L.); (B.R.)
| | - Bradley Richmond
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA; (J.L.); (B.R.)
| | - TingTing Hong
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Utah, Salt Lake City, UT 84112, USA; (J.L.); (B.R.)
- Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah, Salt Lake City, UT 84112, USA
- Diabetes and Metabolism Research Center, University of Utah, Salt Lake City, UT 84112, USA
- Correspondence: ; Tel.: +1-801-581-3090
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26
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Misrani A, Tabassum S, Yang L. Mitochondrial Dysfunction and Oxidative Stress in Alzheimer's Disease. Front Aging Neurosci 2021; 13:617588. [PMID: 33679375 PMCID: PMC7930231 DOI: 10.3389/fnagi.2021.617588] [Citation(s) in RCA: 203] [Impact Index Per Article: 67.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 01/28/2021] [Indexed: 12/15/2022] Open
Abstract
Mitochondria play a pivotal role in bioenergetics and respiratory functions, which are essential for the numerous biochemical processes underpinning cell viability. Mitochondrial morphology changes rapidly in response to external insults and changes in metabolic status via fission and fusion processes (so-called mitochondrial dynamics) that maintain mitochondrial quality and homeostasis. Damaged mitochondria are removed by a process known as mitophagy, which involves their degradation by a specific autophagosomal pathway. Over the last few years, remarkable efforts have been made to investigate the impact on the pathogenesis of Alzheimer’s disease (AD) of various forms of mitochondrial dysfunction, such as excessive reactive oxygen species (ROS) production, mitochondrial Ca2+ dyshomeostasis, loss of ATP, and defects in mitochondrial dynamics and transport, and mitophagy. Recent research suggests that restoration of mitochondrial function by physical exercise, an antioxidant diet, or therapeutic approaches can delay the onset and slow the progression of AD. In this review, we focus on recent progress that highlights the crucial role of alterations in mitochondrial function and oxidative stress in the pathogenesis of AD, emphasizing a framework of existing and potential therapeutic approaches.
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Affiliation(s)
- Afzal Misrani
- School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Sidra Tabassum
- School of Life Sciences, Guangzhou University, Guangzhou, China
| | - Li Yang
- School of Life Sciences, Guangzhou University, Guangzhou, China
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27
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Li A, Gao M, Jiang W, Qin Y, Gong G. Mitochondrial Dynamics in Adult Cardiomyocytes and Heart Diseases. Front Cell Dev Biol 2020; 8:584800. [PMID: 33392184 PMCID: PMC7773778 DOI: 10.3389/fcell.2020.584800] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Accepted: 11/19/2020] [Indexed: 12/17/2022] Open
Abstract
Mitochondria are the powerhouse organelles of cells; they participate in ATP generation, calcium homeostasis, oxidative stress response, and apoptosis. Thus, maintenance of mitochondrial function is critical for cellular functions. As highly dynamic organelles, the function of mitochondria is dynamically regulated by their fusion and fission in many cell types, which regulate mitochondrial morphology, number, distribution, metabolism, and biogenesis in cells. Mature rod-shaped cardiomyocytes contain thousands of end-to-end contacted spheroid mitochondria. The movement of mitochondria in these cells is limited, which hinders the impetus for research into mitochondrial dynamics in adult cardiomyocytes. In this review, we discuss the most recent progress in mitochondrial dynamics in mature (adult) cardiomyocytes and the relationship thereof with heart diseases.
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Affiliation(s)
- Anqi Li
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Meng Gao
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Wenting Jiang
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Yuan Qin
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China.,Department of Pharmacy, Shanghai East Hospital, Tongji University, Shanghai, China
| | - Guohua Gong
- Institute for Regenerative Medicine, Shanghai East Hospital, School of Life Sciences and Technology, Tongji University, Shanghai, China
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28
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Yang H, Qiu B, Xue C, Guo C, Dong Z. Comparative pharmacokinetics of seven bioactive components in normal, sham-operated, and myocardial ischemia-reperfusion injury rats after oral administration of the Salvia Miltiorrhiza-Moutan Cortex herb pair. Biomed Chromatogr 2020; 35:e5016. [PMID: 33125740 DOI: 10.1002/bmc.5016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 10/21/2020] [Accepted: 10/23/2020] [Indexed: 12/13/2022]
Abstract
Recently the Salvia Miltiorrhiza-Moutan Cortex (SM-MC) herb pair is considered as a promising Chinese medicinal mixture exhibiting a range of pharmacological activities, including treating cardiovascular disease due to its unique composition. In this study, we conducted the comparative pharmacokinetic analysis of seven main bioactive components of SM-MC in a different model rat. A straightforward ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) strategy that could simultaneously evaluate the levels of seven compounds was used to ensure the reliability of these pharmacokinetic analyses in rat plasma. The rat plasma samples were collected from normal, sham-operated, and myocardial ischemia-reperfusion injury (MIRI) groups at predetermined time points after the administration of SM-MC. The main pharmacokinetic parameters were detected and calculated. We successfully assessed the maximum concentration (Cmax ), time to Cmax (Tmax ), the elimination rate constant (λz ), total half-life (t1/2 ), total body clearance (CL), and the area under the concentration-time curve from 0 to last sampling time (AUC0-t ) and extrapolated to infinity (AUC0-∞ ). To sum up, an optimized UPLC-MS/MS approach that could be used to rapidly, simultaneously, and sensitively detect seven bioactive compounds derived from SM-MC extract preparations was successfully developed, which may offer a pharmacokinetic basis for preclinical and clinical studies of SM-MC herb pair for treating MIRI.
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Affiliation(s)
- Haotian Yang
- Department of Pharmacy, Hebei Province General Center, National Clinical Drug Monitoring Center, Shijiazhuang, China
| | - Bo Qiu
- Department of Pharmacy, Hebei Province General Center, National Clinical Drug Monitoring Center, Shijiazhuang, China
| | - Chaojun Xue
- Department of Pharmacy, Hebei Province General Center, National Clinical Drug Monitoring Center, Shijiazhuang, China
| | - Caihui Guo
- Department of Pharmacy, Hebei Province General Center, National Clinical Drug Monitoring Center, Shijiazhuang, China
| | - Zhanjun Dong
- Department of Pharmacy, Hebei Province General Center, National Clinical Drug Monitoring Center, Shijiazhuang, China
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29
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Ren L, Chen X, Chen X, Li J, Cheng B, Xia J. Mitochondrial Dynamics: Fission and Fusion in Fate Determination of Mesenchymal Stem Cells. Front Cell Dev Biol 2020; 8:580070. [PMID: 33178694 PMCID: PMC7593605 DOI: 10.3389/fcell.2020.580070] [Citation(s) in RCA: 63] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Mesenchymal stem cells (MSCs) are pivotal to tissue homeostasis, repair, and regeneration due to their potential for self-renewal, multilineage differentiation, and immune modulation. Mitochondria are highly dynamic organelles that maintain their morphology via continuous fission and fusion, also known as mitochondrial dynamics. MSCs undergo specific mitochondrial dynamics during proliferation, migration, differentiation, apoptosis, or aging. Emerging evidence suggests that mitochondrial dynamics are key contributors to stem cell fate determination. The coordination of mitochondrial fission and fusion is crucial for cellular function and stress responses, while abnormal fission and/or fusion causes MSC dysfunction. This review focuses on the role of mitochondrial dynamics in MSC commitment under physiological and stress conditions. We highlight mechanistic insights into modulating mitochondrial dynamics and mitochondrial strategies for stem cell-based regenerative medicine. These findings shed light on the contribution of mitochondrial dynamics to MSC fate and MSC-based tissue repair.
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Affiliation(s)
- Lin Ren
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiaodan Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiaobing Chen
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jiayan Li
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Bin Cheng
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Juan Xia
- Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China.,Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, China
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30
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Dynasore Blocks Ferroptosis through Combined Modulation of Iron Uptake and Inhibition of Mitochondrial Respiration. Cells 2020; 9:cells9102259. [PMID: 33050207 PMCID: PMC7650611 DOI: 10.3390/cells9102259] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 09/25/2020] [Accepted: 10/03/2020] [Indexed: 12/20/2022] Open
Abstract
Ferroptosis is a form of regulated necrosis characterized by a chain-reaction of detrimental membrane lipid peroxidation following collapse of glutathione peroxidase 4 (Gpx4) activity. This lipid peroxidation is catalyzed by labile ferric iron. Therefore, iron import mediated via transferrin receptors and both, enzymatic and non-enzymatic iron-dependent radical formation are crucial prerequisites for the execution of ferroptosis. Intriguingly, the dynamin inhibitor dynasore, which has been shown to block transferrin receptor endocytosis, can protect from ischemia/reperfusion injury as well as neuronal cell death following spinal cord injury. Yet, it is unknown how dynasore exerts these cell death-protective effects. Using small interfering RNA suppression, lipid reactive oxygen species (ROS), iron tracers and bona fide inducers of ferroptosis, we find that dynasore treatment in lung adenocarcinoma and neuronal cell lines strongly protects these from ferroptosis. Surprisingly, while the dynasore targets dynamin 1 and 2 promote extracellular iron uptake, their silencing was not sufficient to block ferroptosis suggesting that this route of extracellular iron uptake is dispensable for acute induction of ferroptosis and dynasore must have an additional off-target activity mediating full ferroptosis protection. Instead, in intact cells, dynasore inhibited mitochondrial respiration and thereby mitochondrial ROS production which can feed into detrimental lipid peroxidation and ferroptotic cell death in the presence of labile iron. In addition, in cell free systems, dynasore showed radical scavenger properties and acted as a broadly active antioxidant which is superior to N-acetylcysteine (NAC) in blocking ferroptosis. Thus, dynasore can function as a highly active inhibitor of ROS-driven types of cell death via combined modulation of the iron pool and inhibition of general ROS by simultaneously blocking two routes required for ROS and lipid-ROS driven cell death, respectively. These data have important implications for the interpretation of studies observing tissue-protective effects of this dynamin inhibitor as well as raise awareness that off-target ROS scavenging activities of small molecules used to interrogate the ferroptosis pathway should be taken into consideration.
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31
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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: 196] [Impact Index Per Article: 49.0] [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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32
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Yehualashet AS, Belachew TF, Kifle ZD, Abebe AM. Targeting Cardiac Metabolic Pathways: A Role in Ischemic Management. Vasc Health Risk Manag 2020; 16:353-365. [PMID: 32982263 PMCID: PMC7501978 DOI: 10.2147/vhrm.s264130] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Accepted: 08/11/2020] [Indexed: 12/12/2022] Open
Abstract
Among the vast number of noncommunicable diseases encountered worldwide, cardiovascular diseases accounted for about 17.8 million deaths in 2017 and ischemic heart disease (IHD) remains the single-largest cause of death in countries across all income groups. Because conventional medications are not without shortcomings and patients still refractory to these medications, scientific investigation is ongoing to advance the management of IHD, and shows a great promise for better treatment modalities, but additional research can warrant improvement in terms of the quality of life of patients. Metabolic modulation is one promising strategy for the treatment of IHD, because alterations in energy metabolism are involved in progression of the disease. Therefore, the purpose of this review was to strengthen attention toward the use of metabolic modulators and to review the current level of knowledge on cardiac energy metabolic pathways.
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Affiliation(s)
- Awgichew Shewasinad Yehualashet
- Pharmacology and Toxicology Unit, Department of Pharmacy, College of Health Sciences, Debre Berhan University, Debre Berhan, Ethiopia
| | | | - Zemene Demelash Kifle
- School of Pharmacy, Department of Pharmacology, University of Gondar, Gondar, Ethiopia
| | - Ayele Mamo Abebe
- Department of Nursing, College of Health Sciences, Debre Berhan University, Debre Berhan, Ethiopia
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33
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Hernandez‐Resendiz S, Prunier F, Girao H, Dorn G, Hausenloy DJ. Targeting mitochondrial fusion and fission proteins for cardioprotection. J Cell Mol Med 2020; 24:6571-6585. [PMID: 32406208 PMCID: PMC7299693 DOI: 10.1111/jcmm.15384] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 01/05/2023] Open
Abstract
New treatments are needed to protect the myocardium against the detrimental effects of acute ischaemia/reperfusion (IR) injury following an acute myocardial infarction (AMI), in order to limit myocardial infarct (MI) size, preserve cardiac function and prevent the onset of heart failure (HF). Given the critical role of mitochondria in energy production for cardiac contractile function, prevention of mitochondrial dysfunction during acute myocardial IRI may provide novel cardioprotective strategies. In this regard, the mitochondrial fusion and fissions proteins, which regulate changes in mitochondrial morphology, are known to impact on mitochondrial quality control by modulating mitochondrial biogenesis, mitophagy and the mitochondrial unfolded protein response. In this article, we review how targeting these inter-related processes may provide novel treatment targets and new therapeutic strategies for reducing MI size, preventing the onset of HF following AMI.
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Affiliation(s)
- Sauri Hernandez‐Resendiz
- National Heart Research Institute SingaporeNational Heart Centre SingaporeSingaporeSingapore
- Cardiovascular & Metabolic Disorders ProgramDuke‐National University of Singapore Medical SchoolSingaporeSingapore
- Centro de Biotecnologia‐FEMSATecnologico de MonterreyNuevo LeonMexico
| | - Fabrice Prunier
- Institut MITOVASCCNRS UMR 6015 INSERM U1083University Hospital Center of AngersUniversity of AngersAngersFrance
| | - Henrique Girao
- Faculty of MedicineCoimbra Institute for Clinical and Biomedical Research (iCBR)University of CoimbraPortugal
- Center for Innovative Biomedicine and BiotechnologyUniversity of CoimbraCoimbraPortugal
- Clinical Academic Centre of Coimbra (CACC)CoimbraPortugal
| | - Gerald Dorn
- Department of Internal MedicineCenter for PharmacogenomicsWashington University School of MedicineSt. LouisMOUSA
| | - Derek J. Hausenloy
- National Heart Research Institute SingaporeNational Heart Centre SingaporeSingaporeSingapore
- Cardiovascular & Metabolic Disorders ProgramDuke‐National University of Singapore Medical SchoolSingaporeSingapore
- Yong Loo Lin School of MedicineNational University SingaporeSingaporeSingapore
- The Hatter Cardiovascular InstituteUniversity College LondonLondonUK
- Cardiovascular Research CenterCollege of Medical and Health SciencesAsia UniversityTaichungTaiwan
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34
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Forte M, Schirone L, Ameri P, Basso C, Catalucci D, Modica J, Chimenti C, Crotti L, Frati G, Rubattu S, Schiattarella GG, Torella D, Perrino C, Indolfi C, Sciarretta S. The role of mitochondrial dynamics in cardiovascular diseases. Br J Pharmacol 2020; 178:2060-2076. [DOI: 10.1111/bph.15068] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/31/2020] [Accepted: 04/01/2020] [Indexed: 12/22/2022] Open
Affiliation(s)
- Maurizio Forte
- Department of AngioCardioNeurology IRCCS Neuromed Pozzili Italy
| | - Leonardo Schirone
- Department of Medical and Surgical Sciences and Biotechnologies Sapienza University of Rome Latina Italy
- Department of Internal, Anesthetic and Cardiovascular Clinical Sciences “La Sapienza” University of Rome Rome Italy
| | - Pietro Ameri
- Cardiovascular Disease Unit IRCCS Ospedale Policlinico Genova Italy
- Department of Internal Medicine University of Genova Genova Italy
| | - Cristina Basso
- Cardiovascular Pathology Unit, Department of Cardiac, Thoracic, Vascular Sciences and Public Health University of Padua Medical School Padova Italy
| | - Daniele Catalucci
- Humanitas Clinical and Research Center IRCCS Rozzano Italy
- National Research Council Institute of Genetic and Biomedical Research ‐ UOS Milan Italy
| | - Jessica Modica
- Humanitas Clinical and Research Center IRCCS Rozzano Italy
- National Research Council Institute of Genetic and Biomedical Research ‐ UOS Milan Italy
| | - Cristina Chimenti
- Department of Cardiovascular, Respiratory, Nephrologic, and Geriatric Sciences Sapienza University of Rome Rome Italy
| | - Lia Crotti
- Istituto Auxologico Italiano IRCCS, Center for Cardiac Arrhythmias of Genetic Origin and Laboratory of Cardiovascular Genetics Milan Italy
- Istituto Auxologico Italiano, IRCCS, Department of Cardiovascular, Neural and Metabolic Sciences San Luca Hospital Milan Italy
- Department of Medicine and Surgery Università Milano‐Bicocca Milan Italy
| | - Giacomo Frati
- Department of AngioCardioNeurology IRCCS Neuromed Pozzili Italy
- Department of Medical and Surgical Sciences and Biotechnologies Sapienza University of Rome Latina Italy
| | - Speranza Rubattu
- Department of AngioCardioNeurology IRCCS Neuromed Pozzili Italy
- Department of Clinical and Molecular Medicine, School of Medicine and Psychology Sapienza University of Rome Rome Italy
| | - Gabriele Giacomo Schiattarella
- Department of Internal Medicine (Cardiology) University of Texas Southwestern Medical Center Dallas TX USA
- Division of Cardiology, Department of Advanced Biomedical Sciences Federico II University of Naples Naples Italy
| | - Daniele Torella
- Molecular and Cellular Cardiology Laboratory, Department of Experimental and Clinical Medicine Magna Graecia University Catanzaro Italy
| | - Cinzia Perrino
- Division of Cardiology, Department of Advanced Biomedical Sciences Federico II University of Naples Naples Italy
| | - Ciro Indolfi
- Molecular and Cellular Cardiology Laboratory, Department of Experimental and Clinical Medicine Magna Graecia University Catanzaro Italy
| | - Sebastiano Sciarretta
- Department of AngioCardioNeurology IRCCS Neuromed Pozzili Italy
- Department of Medical and Surgical Sciences and Biotechnologies Sapienza University of Rome Latina Italy
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35
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Mollo N, Cicatiello R, Aurilia M, Scognamiglio R, Genesio R, Charalambous M, Paladino S, Conti A, Nitsch L, Izzo A. Targeting Mitochondrial Network Architecture in Down Syndrome and Aging. Int J Mol Sci 2020; 21:E3134. [PMID: 32365535 PMCID: PMC7247689 DOI: 10.3390/ijms21093134] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondria are organelles that mainly control energy conversion in the cell. In addition, they also participate in many relevant activities, such as the regulation of apoptosis and calcium levels, and other metabolic tasks, all closely linked to cell viability. Functionality of mitochondria appears to depend upon their network architecture that may dynamically pass from an interconnected structure with long tubular units, to a fragmented one with short separate fragments. A decline in mitochondrial quality, which presents itself as an altered structural organization and a function of mitochondria, has been observed in Down syndrome (DS), as well as in aging and in age-related pathologies. This review provides a basic overview of mitochondrial dynamics, from fission/fusion mechanisms to mitochondrial homeostasis. Molecular mechanisms determining the disruption of the mitochondrial phenotype in DS and aging are discussed. The impaired activity of the transcriptional co-activator PGC-1α/PPARGC1A and the hyperactivation of the mammalian target of rapamycin (mTOR) kinase are emerging as molecular underlying causes of these mitochondrial alterations. It is, therefore, likely that either stimulating the PGC-1α activity or inhibiting mTOR signaling could reverse mitochondrial dysfunction. Evidence is summarized suggesting that drugs targeting either these pathways or other factors affecting the mitochondrial network may represent therapeutic approaches to improve and/or prevent the effects of altered mitochondrial function. Overall, from all these studies it emerges that the implementation of such strategies may exert protective effects in DS and age-related diseases.
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Affiliation(s)
- Nunzia Mollo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Rita Cicatiello
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Miriam Aurilia
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Roberta Scognamiglio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Rita Genesio
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Maria Charalambous
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy
| | - Simona Paladino
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Anna Conti
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
| | - Lucio Nitsch
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
- Institute of Experimental Endocrinology and Oncology “G. Salvatore”, National Research Council, 80131 Naples, Italy
| | - Antonella Izzo
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, 80131 Naples, Italy
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36
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Messina F, Cecconi F, Rodolfo C. Do You Remember Mitochondria? Front Physiol 2020; 11:271. [PMID: 32292356 PMCID: PMC7119339 DOI: 10.3389/fphys.2020.00271] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Accepted: 03/09/2020] [Indexed: 12/20/2022] Open
Abstract
Dementia is one among the consequences of aging, and amnesia is often one of the most common symptoms. The lack of memory, as a consequence of both “healthy” aging or neurodegenerative conditions, such as in Alzheimer’s disease, has a dramatic impact on the patient’s lifestyle. In fact, the inability to recall information made by a previous experience could not only alter the interaction with the environment, but also lead to a loss of identity. Mitochondria are key regulators of brain’s activity; thanks to their “dynamic organelles” nature they constantly rearrange in the cell body and move along axons and dendrites, changing in dimension, shape, and location, accordingly to the cell’s energy requirements. Indeed, the energy they can provide is essential to maintain synaptic plasticity and to ensure transmission through presynaptic terminals and postsynaptic spines. Stressful conditions, like the ones found in neurodegenerative diseases, seriously impair mitochondria bioenergetic, leading to both loss of proper neuronal interaction and of neuron themselves. Here, we highlighted the current knowledge about the role of mitochondria and mitochondrial dynamics in relation to neurodegenerative disorders linked to aging. Furthermore, we discuss the obstacles as well as the future perspectives aimed to enlarge our knowledge about mitochondria as target for new therapeutic strategies to slow down aging and neurodegenerative disease’s symptoms.
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Affiliation(s)
- Flavia Messina
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
| | - Francesco Cecconi
- Department of Biology, University of Rome Tor Vergata, Rome, Italy.,Department of Paediatric Haematology, Oncology, and Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy.,Unit of Cell Stress and Survival, Danish Cancer Society Research Center, Copenhagen, Denmark
| | - Carlo Rodolfo
- Department of Biology, University of Rome Tor Vergata, Rome, Italy
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Kulek AR, Anzell A, Wider JM, Sanderson TH, Przyklenk K. Mitochondrial Quality Control: Role in Cardiac Models of Lethal Ischemia-Reperfusion Injury. Cells 2020; 9:cells9010214. [PMID: 31952189 PMCID: PMC7016592 DOI: 10.3390/cells9010214] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 02/07/2023] Open
Abstract
The current standard of care for acute myocardial infarction or 'heart attack' is timely restoration of blood flow to the ischemic region of the heart. While reperfusion is essential for the salvage of ischemic myocardium, re-introduction of blood flow paradoxically kills (rather than rescues) a population of previously ischemic cardiomyocytes-a phenomenon referred to as 'lethal myocardial ischemia-reperfusion (IR) injury'. There is long-standing and exhaustive evidence that mitochondria are at the nexus of lethal IR injury. However, during the past decade, the paradigm of mitochondria as mediators of IR-induced cardiomyocyte death has been expanded to include the highly orchestrated process of mitochondrial quality control. Our aims in this review are to: (1) briefly summarize the current understanding of the pathogenesis of IR injury, and (2) incorporating landmark data from a broad spectrum of models (including immortalized cells, primary cardiomyocytes and intact hearts), provide a critical discussion of the emerging concept that mitochondrial dynamics and mitophagy (the components of mitochondrial quality control) may contribute to the pathogenesis of cardiomyocyte death in the setting of ischemia-reperfusion.
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Affiliation(s)
- Andrew R. Kulek
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Anthony Anzell
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Joseph M. Wider
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Thomas H. Sanderson
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Karin Przyklenk
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Correspondence: ; Tel.: +1-313-577-9047
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Zheng L, Li Y, Zhou Z, Xiang W, Gong Z, Chen S, Wang Y, Wang A, Lan Y, Li Y, Huang Y. Comparative pharmacokinetics of quercitrin, astragalin, afzelin and taxifolin in plasma after oral administration of Polygonum orientale inflorescence in sham-operated and myocardial ischemia-reperfusion injury rats. Xenobiotica 2019; 50:822-830. [PMID: 31791186 DOI: 10.1080/00498254.2019.1700319] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
The study aimed to compare the pharmacokinetic properties of quercitrin, astragalin, afzelin and taxifolin, four major bioactive components of Polygonum orientale inflorescence extracts, between sham-operated and myocardial ischemia-reperfusion injury (MIRI) rats.Rats were divided into two groups: MIRI model and sham-operated. The blood samples were collected according to the time schedule. The levels of quercitrin, astragalin, afzelin and taxifolin in the plasma at designated time points were determined using an HPLC-MS/MS method. Various pharmacokinetic parameters were estimated from the plasma concentration versus time data using non-compartmental methods. After the administration of the Chinese herb Polygonum orientale inflorescence extracts, the Cmax, AUC, as well as MRT, increased, while CL decreased, in MIRI model compared to the sham-operated animals.These results suggest that the pathological damage of ischemia-reperfusion had a significant impact on the pharmacological effects of Polygonum orientale inflorescence extracts on ischemic heart disease.The method had been successfully applied to evaluate the pharmacokinetics of quercitrin, astragalin, afzelin and taxifolin in rat plasma after the oral administration of Chinese herb Polygonum orientale inflorescence extracts in rats.
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Affiliation(s)
- Lin Zheng
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Yueting Li
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Zuying Zhou
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China.,School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Wenying Xiang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China.,School of Pharmacy, Guizhou Medical University, Guiyang, China
| | - Zipeng Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Siying Chen
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Yonglin Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
| | - Aimin Wang
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang, China
| | - Yanyu Lan
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang, China
| | - Yongjun Li
- Engineering Research Center for the Development and Application of Ethnic Medicine and TCM, Ministry of Education, Guiyang, China
| | - Yong Huang
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, Guiyang, China
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Bonora M, Wieckowski MR, Sinclair DA, Kroemer G, Pinton P, Galluzzi L. Targeting mitochondria for cardiovascular disorders: therapeutic potential and obstacles. Nat Rev Cardiol 2019; 16:33-55. [PMID: 30177752 DOI: 10.1038/s41569-018-0074-0] [Citation(s) in RCA: 170] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A large body of evidence indicates that mitochondrial dysfunction has a major role in the pathogenesis of multiple cardiovascular disorders. Over the past 2 decades, extraordinary efforts have been focused on the development of agents that specifically target mitochondria for the treatment of cardiovascular disease. Despite such an intensive wave of investigation, no drugs specifically conceived to modulate mitochondrial functions are currently available for the clinical management of cardiovascular disease. In this Review, we discuss the therapeutic potential of targeting mitochondria in patients with cardiovascular disease, examine the obstacles that have restrained the development of mitochondria-targeting agents thus far, and identify strategies that might empower the full clinical potential of this approach.
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Affiliation(s)
- Massimo Bonora
- Ruth L. and David S. Gottesman Institute for Stem Cell, Regenerative Medicine Research, Department of Cell Biology and Stem Cell Institute, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Mariusz R Wieckowski
- Department of Biochemistry, Nencki Institute of Experimental Biology, Warsaw, Poland
| | - David A Sinclair
- Department of Genetics, Paul F. Glenn Center for the Biology of Aging, Harvard Medical School, Boston, MA, USA.,Department of Pharmacology, School of Medical Sciences, The University of New South Wales, Sydney, New South Wales, Australia
| | - Guido Kroemer
- Equipe 11 labellisée Ligue Nationale contre le Cancer, Centre de Recherche des Cordeliers, Paris, France.,INSERM, U1138, Paris, France.,Université Paris Descartes/Paris V, Paris, France.,Université Pierre et Marie Curie, Paris, France.,Metabolomics and Cell Biology Platforms, Gustave Roussy Comprehensive Cancer Center, Villejuif, France.,Pôle de Biologie, Hôpital Européen Georges Pompidou, AP-HP, Paris, France.,Department of Women's and Children's Health, Karolinska University Hospital, Stockholm, Sweden
| | - Paolo Pinton
- Department of Morphology, Surgery, and Experimental Medicine, Section of Pathology, Oncology, and Experimental Biology, Laboratory for Technologies of Advanced Therapies, University of Ferrara, Ferrara, Italy. .,Maria Cecilia Hospital, GVM Care & Research, E.S. Health Science Foundation, Cotignola, Italy.
| | - Lorenzo Galluzzi
- Université Paris Descartes/Paris V, Paris, France. .,Department of Radiation Oncology, Weill Cornell Medical College, New York, NY, USA. .,Sandra and Edward Meyer Cancer Center, New York, NY, USA.
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40
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Wendt L, Vider J, Hoe LES, Du Toit E, Peart JN, Headrick JP. Complex Effects of Putative DRP-1 Inhibitors on Stress Responses in Mouse Heart and Rat Cardiomyoblasts. J Pharmacol Exp Ther 2019; 372:95-106. [PMID: 31704803 DOI: 10.1124/jpet.119.258897] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 09/12/2019] [Indexed: 12/11/2022] Open
Abstract
Dynamin-related protein-1 (DRP-1)-dependent mitochondrial fission may influence cardiac tolerance to ischemic or oxidative stress, presenting a potential "cardioprotective" target. Effects of dynamin inhibitors [mitochondrial division inhibitor 1 (MDIVI-1) and dynasore] on injury, mitochondrial function, and signaling proteins were assessed in distinct models: ischemia-reperfusion (I-R) in mouse hearts and oxidative stress in rat H9c2 cardiomyoblasts. Hearts exhibited substantial cell death [approx. 40 IU lactate dehydrogenase (LDH) efflux] and dysfunction (approx. 40 mmHg diastolic pressure, approx. 40% contractile recovery) following 25 minutes' ischemia. Pretreatment with 1 μM MDIVI-1 reduced dysfunction (30 mmHg diastolic pressure, approx. 55% recovery) and delayed without reducing overall cell death, whereas 5 μM MDIVI-1 reduced overall death at the same time paradoxically exaggerating dysfunction. Postischemic expression of mitochondrial DRP-1 and phospho-activation of ERK1/2 were reduced by MDIVI-1. Conversely, 1 μM dynasore worsened cell death and reduced nonmitochondrial DRP-1. Postischemic respiratory fluxes were unaltered by MDIVI-1, although a 50% fall in complex-I flux control ratio was reversed. In H9c2 myoblasts stressed with 400 μM H2O2, treatment with 50 μM MDIVI-1 preserved metabolic (MTT assay) and mitochondrial (basal respiration) function without influencing survival. This was associated with differential signaling responses, including reduced early versus increased late phospho-activation of ERK1/2, increased phospho-activation of protein kinase B (AKT), and differential changes in determinants of autophagy [reduced microtubule-associated protein 1 light chain 3b (LC3B-II/I) vs. increased Parkinson juvenile disease protein 2 (Parkin)] and apoptosis [reduced poly-(ADP-ribose) polymerase (PARP) cleavage vs. increased BCL2-associated X (BAX)/B-cell lymphoma 2 (BCL2)]. These data show MDIVI-1 (not dynasore) confers some benefit during I-R/oxidative stress. However, despite mitochondrial and metabolic preservation, MDIVI-1 exerts mixed effects on cell death versus dysfunction, potentially reflecting differential changes in survival kinase, autophagy, and apoptosis pathways. SIGNIFICANCE STATEMENT: Inhibition of mitochondrial fission is a novel approach to still elusive cardioprotection. Assessing effects of fission inhibitors on responses to ischemic or oxidative stress in hearts and cardiomyoblasts reveals mitochondrial division inhibitor 1 (MDIVI-1) and dynasore induce complex effects and limited cardioprotection. This includes differential impacts on death and dysfunction, survival kinases, and determinants of autophagy and apoptosis. Although highlighting the interconnectedness of fission and these key processes, results suggest MDIVI-1 and dynasore may be of limited value in the quest for effective cardioprotection.
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Affiliation(s)
- Lauren Wendt
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
| | - Jelena Vider
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
| | - Louise E See Hoe
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
| | - Eugene Du Toit
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
| | - Jason N Peart
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
| | - John P Headrick
- School of Medical Science, Griffith University, Southport, Australia (L.W., J.V., E.D.T., J.N.P., J.P.H.) and Critical Care Research Group, The Prince Charles Hospital and The University of Queensland, Chermside, Australia (L.E.S.H.)
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Zhong B, Shi D, Wu F, Wang S, Hu H, Cheng C, Qing X, Huang X, Luo X, Zhang Z, Shao Z. Dynasore suppresses cell proliferation, migration, and invasion and enhances the antitumor capacity of cisplatin via STAT3 pathway in osteosarcoma. Cell Death Dis 2019; 10:687. [PMID: 31534119 PMCID: PMC6751204 DOI: 10.1038/s41419-019-1917-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/23/2019] [Accepted: 08/26/2019] [Indexed: 12/17/2022]
Abstract
Osteosarcoma (OS) is the most common malignant bone tumor. The prognosis of metastatic and recurrent OS patients still remains unsatisfactory. Cisplatin reveals undeniable anti-tumor effect while induces severe side effects that threatening patients’ health. Dynasore, a cell-permeable small molecule that inhibits dynamin activity, has been widely studied in endocytosis and phagocytosis. However, the anti-tumor effect of dynasore on OS has not yet been ascertained. In the present study, we suggested that dynasore inhibited cell proliferation, migration, invasion, and induced G0/G1 arrest of OS cells. Besides, dynasore repressed tumorigenesis of OS in xenograft mouse model. In addition, we demonstrated that dynasore improved the anti-tumor effect of cisplatin in vitro and in vivo without inducing nephrotoxicity and hepatotoxicity. Mechanistically, dynasore repressed the expression of CCND1, CDK4, p-Rb, and MMP-2. Furthermore, we found that dynasore exerts anti-tumor effects in OS partially via inhibiting STAT3 signaling pathway but not ERK-MAPK, PI3K-Akt or SAPK/JNK pathways. P38 MAPK pathway served as a negative regulatory mechanism in dynasore induced anti-OS effects. Taken together, our study indicated that dynasore does suppress cell proliferation, migration, and invasion via STAT3 signaling pathway, and enhances the antitumor capacity of cisplatin in OS. Our results suggest that dynasore is a novel candidate drug to inhibit the tumor growth of OS and enhance the anti-tumor effects of cisplatin.
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Affiliation(s)
- Binlong Zhong
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Deyao Shi
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Fashuai Wu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Shangyu Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Hongzhi Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Cheng Cheng
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Xiangcheng Qing
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Xin Huang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China
| | - Xueying Luo
- Tongji Medical College, Huazhong University of Science and Technology, Wuhan Mental Health Centre, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Zhicai Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China.
| | - Zengwu Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, 1277 JieFang Avenue, Wuhan, 430022, China.
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Oliver D, Reddy PH. Dynamics of Dynamin-Related Protein 1 in Alzheimer's Disease and Other Neurodegenerative Diseases. Cells 2019; 8:cells8090961. [PMID: 31450774 PMCID: PMC6769467 DOI: 10.3390/cells8090961] [Citation(s) in RCA: 77] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 08/13/2019] [Accepted: 08/21/2019] [Indexed: 12/28/2022] Open
Abstract
The purpose of this article is to highlight the role of dynamin-related protein 1 (Drp1) in abnormal mitochondrial dynamics, mitochondrial fragmentation, autophagy/mitophagy, and neuronal damage in Alzheimer's disease (AD) and other neurological diseases, including Parkinson's, Huntington's, amyotrophic lateral sclerosis, multiple sclerosis, diabetes, and obesity. Dynamin-related protein 1 is one of the evolutionarily highly conserved large family of GTPase proteins. Drp1 is critical for mitochondrial division, size, shape, and distribution throughout the neuron, from cell body to axons, dendrites, and nerve terminals. Several decades of intense research from several groups revealed that Drp1 is enriched at neuronal terminals and involved in synapse formation and synaptic sprouting. Different phosphorylated forms of Drp1 acts as both increased fragmentation and/or increased fusion of mitochondria. Increased levels of Drp1 were found in diseased states and caused excessive fragmentation of mitochondria, leading to mitochondrial dysfunction and neuronal damage. In the last two decades, several Drp1 inhibitors have been developed, including Mdivi-1, Dynasore, P110, and DDQ and their beneficial effects tested using cell cultures and mouse models of neurodegenerative diseases. Recent research using genetic crossing studies revealed that a partial reduction of Drp1 is protective against mutant protein(s)-induced mitochondrial and synaptic toxicities. Based on findings from cell cultures, mouse models and postmortem brains of AD and other neurodegenerative disease, we cautiously conclude that reduced Drp1 is a promising therapeutic target for AD and other neurological diseases.
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Affiliation(s)
- Darryll Oliver
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
- Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, Lubbock, TX 79413, USA.
- Department of Cell Biology and Biochemistry, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
- Department of Neurology, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
- Department of Speech, Language and Hearing Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA.
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43
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Ong SB, Kwek XY, Katwadi K, Hernandez-Resendiz S, Crespo-Avilan GE, Ismail NI, Lin YH, Yap EP, Lim SY, Ja KPMM, Ramachandra CJA, Tee N, Toh JJ, Shim W, Wong P, Cabrera-Fuentes HA, Hausenloy DJ. Targeting Mitochondrial Fission Using Mdivi-1 in A Clinically Relevant Large Animal Model of Acute Myocardial Infarction: A Pilot Study. Int J Mol Sci 2019; 20:E3972. [PMID: 31443187 PMCID: PMC6720595 DOI: 10.3390/ijms20163972] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 08/09/2019] [Accepted: 08/14/2019] [Indexed: 12/19/2022] Open
Abstract
Background: New treatments are needed to reduce myocardial infarct size (MI) and prevent heart failure (HF) following acute myocardial infarction (AMI), which are the leading causes of death and disability worldwide. Studies in rodent AMI models showed that genetic and pharmacological inhibition of mitochondrial fission, induced by acute ischemia and reperfusion, reduced MI size. Whether targeting mitochondrial fission at the onset of reperfusion is also cardioprotective in a clinically-relevant large animal AMI model remains to be determined. Methods: Adult pigs (30-40 kg) were subjected to closed-chest 90-min left anterior descending artery ischemia followed by 72 h of reperfusion and were randomized to receive an intracoronary bolus of either mdivi-1 (1.2 mg/kg, a small molecule inhibitor of the mitochondrial fission protein, Drp1) or vehicle control, 10-min prior to reperfusion. The left ventricular (LV) size and function were both assessed by transthoracic echocardiography prior to AMI and after 72 h of reperfusion. MI size and the area-at-risk (AAR) were determined using dual staining with Tetrazolium and Evans blue. Heart samples were collected for histological determination of fibrosis and for electron microscopic analysis of mitochondrial morphology. Results: A total of 14 pigs underwent the treatment protocols (eight control and six mdivi-1). Administration of mdivi-1 immediately prior to the onset of reperfusion did not reduce MI size (MI size as % of AAR: Control 49.2 ± 8.6 vs. mdivi-1 50.5 ± 11.4; p = 0.815) or preserve LV systolic function (LV ejection fraction %: Control 67.5 ± 0.4 vs. mdivi-1 59.6 ± 0.6; p = 0.420), when compared to vehicle control. Similarly, there were no differences in mitochondrial morphology or myocardial fibrosis between mdivi-1 and vehicle control groups. Conclusion: Our pilot study has shown that treatment with mdivi-1 (1.2 mg/kg) at the onset of reperfusion did not reduce MI size or preserve LV function in the clinically-relevant closed-chest pig AMI model. A larger study, testing different doses of mdivi-1 or using a more specific Drp1 inhibitor are required to confirm these findings.
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Affiliation(s)
- Sang-Bing Ong
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore.
- Department of Cardiovascular, Renal and Metabolic Medicine, School of Medicine, Sapporo Medical University, Hokkaido 060-8543, Japan.
| | - Xiu-Yi Kwek
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Khairunnisa Katwadi
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Sauri Hernandez-Resendiz
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Gustavo E Crespo-Avilan
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
- Institute of Biochemistry, Medical School, Justus-Liebig University, 35392 Giessen, Germany
| | - Nur Izzah Ismail
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
| | - Ying-Hsi Lin
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - En Ping Yap
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Song-Yi Lim
- Innoheart Pte Ltd., Singapore 119844, Singapore
| | - K P Myu Mai Ja
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Chrishan J A Ramachandra
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | - Nicole Tee
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
| | | | - Winston Shim
- Innoheart Pte Ltd., Singapore 119844, Singapore
- Health and Social Sciences Cluster, Singapore Institute of Technology, Singapore 138683, Singapore
| | - Philip Wong
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
- Innoheart Pte Ltd., Singapore 119844, Singapore
| | - Hector A Cabrera-Fuentes
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore.
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore.
- Institute of Biochemistry, Medical School, Justus-Liebig University, 35392 Giessen, Germany.
- Tecnologico de Monterrey, Centro de Biotecnologia-FEMSA, Monterrey, NL 64849, Mexico.
- Institute of Fundamental Medicine and Biology, Kazan (Volga Region) Federal University, 420008 Kazan, Russian.
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, Singapore 169857, Singapore
- National Heart Research Institute Singapore, National Heart Centre, Singapore 169609, Singapore
- Tecnologico de Monterrey, Centro de Biotecnologia-FEMSA, Monterrey, NL 64849, Mexico
- Yong Loo Lin School of Medicine, National University Singapore, Singapore 119228, Singapore
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College London, London WC1E 6HX, UK
- The National Institute of Health Research University College London Hospitals Biomedical Research Centre, London W1T 7DN, UK
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44
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Mitochondrial Dynamics: Biogenesis, Fission, Fusion, and Mitophagy in the Regulation of Stem Cell Behaviors. Stem Cells Int 2019; 2019:9757201. [PMID: 31089338 PMCID: PMC6476046 DOI: 10.1155/2019/9757201] [Citation(s) in RCA: 76] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 03/05/2019] [Indexed: 12/24/2022] Open
Abstract
Stem cells have the unique capacity to differentiate into many cell types during embryonic development and postnatal growth. Through coordinated cellular behaviors (self-renewal, proliferation, and differentiation), stem cells are also pivotal to the homeostasis, repair, and regeneration of many adult tissues/organs and thus of great importance in regenerative medicine. Emerging evidence indicates that mitochondria are actively involved in the regulation of stem cell behaviors. Mitochondria undergo specific dynamics (biogenesis, fission, fusion, and mitophagy) during stem cell self-renewal, proliferation, and differentiation. The alteration of mitochondrial dynamics, fine-tuned by stem cell niche factors and stress signaling, has considerable impacts on stem cell behaviors. Here, we summarize the recent research progress on (1) how mitochondrial dynamics controls stem cell behaviors, (2) intrinsic and extrinsic factors that regulate mitochondrial dynamics, and (3) pharmacological regulators of mitochondrial dynamics and their therapeutic potential. This review emphasizes the metabolic control of stemness and differentiation and may shed light on potential new applications in stem cell-based therapy.
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Basheer WA, Fu Y, Shimura D, Xiao S, Agvanian S, Hernandez DM, Hitzeman TC, Hong T, Shaw RM. Stress response protein GJA1-20k promotes mitochondrial biogenesis, metabolic quiescence, and cardioprotection against ischemia/reperfusion injury. JCI Insight 2018; 3:121900. [PMID: 30333316 DOI: 10.1172/jci.insight.121900] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 09/11/2018] [Indexed: 01/23/2023] Open
Abstract
Connexin 43 (Cx43), a product of the GJA1 gene, is a gap junction protein facilitating intercellular communication between cardiomyocytes. Cx43 protects the heart from ischemic injury by mechanisms that are not well understood. GJA1 mRNA can undergo alternative translation, generating smaller isoforms in the heart, with GJA1-20k being the most abundant. Here, we report that ischemic and ischemia/reperfusion (I/R) injuries upregulate endogenous GJA1-20k protein in the heart, which targets to cardiac mitochondria and associates with the outer mitochondrial membrane. Exploring the functional consequence of increased GJA1-20k, we found that AAV9-mediated gene transfer of GJA1-20k in mouse hearts increases mitochondrial biogenesis while reducing mitochondrial membrane potential, respiration, and ROS production. By doing so, GJA1-20k promotes a protective mitochondrial phenotype, as seen with ischemic preconditioning (IPC), which also increases endogenous GJA1-20k in heart lysates and mitochondrial fractions. As a result, AAV9-GJA1-20k pretreatment reduces myocardial infarct size in mouse hearts subjected to in vivo ischemic injury or ex vivo I/R injury, similar to an IPC-induced cardioprotective effect. In conclusion, GJA1-20k is an endogenous stress response protein that induces mitochondrial biogenesis and metabolic hibernation, preconditioning the heart against I/R insults. Introduction of exogenous GJA1-20k is a putative therapeutic strategy for patients undergoing anticipated ischemic injury.
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Affiliation(s)
- Wassim A Basheer
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Ying Fu
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Daisuke Shimura
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Shaohua Xiao
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Sosse Agvanian
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Diana M Hernandez
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - Tara C Hitzeman
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA
| | - TingTing Hong
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Medicine, Cedars-Sinai Medical Center and UCLA, Los Angeles, California
| | - Robin M Shaw
- Smidt Heart Institute, Cedars-Sinai Medical Center, Los Angeles, California, USA.,Department of Medicine, Cedars-Sinai Medical Center and UCLA, Los Angeles, California
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46
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Rovira-Llopis S, Apostolova N, Bañuls C, Muntané J, Rocha M, Victor VM. Mitochondria, the NLRP3 Inflammasome, and Sirtuins in Type 2 Diabetes: New Therapeutic Targets. Antioxid Redox Signal 2018; 29:749-791. [PMID: 29256638 DOI: 10.1089/ars.2017.7313] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE Type 2 diabetes mellitus and hyperglycemia can lead to the development of comorbidities such as atherosclerosis and microvascular/macrovascular complications. Both type 2 diabetes and its complications are related to mitochondrial dysfunction and oxidative stress. Type 2 diabetes is also a chronic inflammatory condition that leads to inflammasome activation and the release of proinflammatory mediators, including interleukins (ILs) IL-1β and IL-18. Moreover, sirtuins are energetic sensors that respond to metabolic load, which highlights their relevance in metabolic diseases, such as type 2 diabetes. Recent Advances: Over the past decade, great progress has been made in clarifying the signaling events regulated by mitochondria, inflammasomes, and sirtuins. Nod-like receptor family pyrin domain containing 3 (NLRP3) is the best characterized inflammasome, and the generation of oxidant species seems to be critical for its activation. NLRP3 inflammasome activation and altered sirtuin levels have been observed in type 2 diabetes. Critical Issue: Despite increasing evidence of the relationship between the NLRP3 inflammasome, mitochondrial dysfunction, and oxidative stress and of their participation in type 2 diabetes physiopathology, therapeutic strategies to combat type 2 diabetes that target NLRP3 inflammasome and sirtuins are yet to be consolidated. FUTURE DIRECTIONS In this review article, we attempt to provide an overview of the existing literature concerning the crosstalk between mitochondrial impairment and the inflammasome, with particular attention to cellular and mitochondrial redox metabolism and the potential role of the NLRP3 inflammasome and sirtuins in the pathogenesis of type 2 diabetes. In addition, we discuss potential targets for therapeutic intervention based on these molecular interactions. Antioxid. Redox Signal. 29, 749-791.
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Affiliation(s)
- Susana Rovira-Llopis
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Nadezda Apostolova
- 2 Department of Pharmacology, University of Valencia , Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Celia Bañuls
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Jordi Muntané
- 3 Department of General Surgery, Hospital University "Virgen del Rocío"/IBiS/CSIC/University of Seville , Seville, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Milagros Rocha
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Victor M Victor
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain .,5 Department of Physiology, University of Valencia , Valencia, Spain
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47
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Differential temporal inhibition of mitochondrial fission by Mdivi-1 exerts effective cardioprotection in cardiac ischemia/reperfusion injury. Clin Sci (Lond) 2018; 132:1669-1683. [PMID: 30065084 DOI: 10.1042/cs20180510] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 07/28/2018] [Accepted: 07/31/2018] [Indexed: 12/26/2022]
Abstract
Altered cardiac mitochondrial dynamics with excessive fission is a predominant cause of cardiac dysfunction during ischemia/reperfusion (I/R) injury. Although pre-ischemic inhibition of mitochondrial fission has been shown to improve cardiac function in I/R injury, the effects of this inhibitor given at different time-points during cardiac I/R injury are unknown. Fifty male Wistar rats were subjected to sham and cardiac I/R injury. For cardiac I/R injury, rats were randomly divided into pre-ischemia, during-ischemia, and upon onset of reperfusion group. A mitochondrial fission inhibitor, Mdivi-1 (mitochondrial division inhibitor 1) (1.2 mg/kg) was used. During I/R protocols, the left ventricular (LV) function, arrhythmia score, and mortality rate were determined. Then, the heart was removed to determine infarct size, mitochondrial function, mitochondrial dynamics, and apoptosis. Our results showed that Mdivi-1 given prior to ischemia, exerted the highest level of cardioprotection quantitated through the attenuated incidence of arrhythmia, reduced infarct size, improved cardiac mitochondrial function and fragmentation, and decreased cardiac apoptosis, leading to preserved LV function during I/R injury. Mdivi-1 administered during ischemia and upon the onset of reperfusion also improved cardiac mitochondrial function and LV function, but at a lower efficacy than when it was given prior to ischemia. Taken together, mitochondrial fission inhibition after myocardial ischemic insults still exerts cardioprotection by attenuating mitochondrial dysfunction and dynamic imbalance, leading to decreased infarct size and ultimately improved LV function after acute cardiac I/R injury in rats. These findings indicate its potential clinical usefulness.
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48
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Abstract
Several interventions, such as ischemic preconditioning, remote pre/perconditioning, or postconditioning, are known to decrease lethal myocardial ischemia-reperfusion injury. While several signal transduction pathways become activated by such maneuvers, they all have a common end point, namely, the mitochondria. These organelles represent an essential target of the cardioprotective strategies, and the preservation of mitochondrial function is central for the reduction of ischemia-reperfusion injury. In the present review, we address the role of mitochondria in the different conditioning strategies; in particular, we focus on alterations of mitochondrial function in terms of energy production, formation of reactive oxygen species, opening of the mitochondrial permeability transition pore, and mitochondrial dynamics induced by ischemia-reperfusion.
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Affiliation(s)
- Kerstin Boengler
- Institute of Physiology, Justus-Liebig Universität , Giessen , Germany
| | - Günter Lochnit
- Institute of Biochemistry, Justus-Liebig Universität , Giessen , Germany
| | - Rainer Schulz
- Institute of Physiology, Justus-Liebig Universität , Giessen , Germany
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49
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Li Y, Liu X. Novel insights into the role of mitochondrial fusion and fission in cardiomyocyte apoptosis induced by ischemia/reperfusion. J Cell Physiol 2018. [PMID: 29528108 DOI: 10.1002/jcp.26522] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
As the main source of energy in the body, mitochondria are highly dynamic organelles, which are constantly going through fusion and fission. The fine balance of mitochondrial fusion and fission plays an important role in maintaining the stability of cardiomyocyte homeostasis. The processes of mitochondrial fusion and fission are very complex, which is mediated by fusion and fission proteins. Disruptions in these processes through controlling fusion and fission proteins affect mitochondrial functions and cardiomyocyte survival. Ischemia/reperfusion (I/R) can regulate the expression and post-translational modifications of fusion and fission proteins thereby inducing the abnormality of mitochondrial fusion and fission and cardiomyocyte apoptosis. Furthermore, intervention with the expression and function of fusion and fission proteins influences on cardiomyocyte apoptosis under I/R conditions. In this review, we focus on the current developments in the effects of mitochondrial fusion and fission on cardiomyocyte functions, the implications for cardiomyocyte apoptosis in response to I/R, and possible mechanisms. And we review their roles as a potential therapeutic target for treating I/R-induced cardiomyocyte injury.
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Affiliation(s)
- YuZhen Li
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing, China
| | - XiuHua Liu
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing, China
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50
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Shen F, Gai J, Xing J, Guan J, Fu L, Li Q. Dynasore suppresses proliferation and induces apoptosis of the non-small-cell lung cancer cell line A549. Biochem Biophys Res Commun 2017; 495:1158-1166. [PMID: 29175207 DOI: 10.1016/j.bbrc.2017.11.109] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 11/15/2017] [Accepted: 11/17/2017] [Indexed: 01/09/2023]
Abstract
Lung cancer is the leading cause of cancer death worldwide, and most of all cases are non-small-cell lung cancer. Lung cancer is associated with dysregulation of mitochondrial fusion and fission, and inhibition of the fission regulator Dynamin-related protein 1 (Drp1) reduces proliferation and increases apoptosis of lung cancer cells. Dynasore is a small molecule non-selective inhibitor of the GTPase activity of dynamin 1, dynamin 2, and Drp1 in vivo and in vitro. Here, we investigated the effects of dynasore on the proliferation and apoptosis of A549 lung cancer cells, alone and in combination with the chemotherapeutic drug cisplatin. We found that cisplatin increased mitochondrial fission and dynamin 2 expression, whereas dynasore had the opposite effects. However, both cisplatin and dynasore independently induced mitochondrial oxidative stress, leading to mitochondrial dysfunction, reduced cell proliferation, and enhanced apoptosis. Importantly, dynasore significantly augmented the anti-cancer effects of cisplatin. To the best of our knowledge, this is the first report that dynasore inhibits proliferation and induces apoptosis of lung cancer cells, and enhances the inhibitory effects of cisplatin.
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Affiliation(s)
- Feifei Shen
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Junda Gai
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Jilin Xing
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Jingqian Guan
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Lin Fu
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China
| | - Qingchang Li
- Department of Pathology, College of Basic Medical Sciences, China Medical University, Shenyang, China.
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