1
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Tang S, Fuß A, Fattahi Z, Culmsee C. Drp1 depletion protects against ferroptotic cell death by preserving mitochondrial integrity and redox homeostasis. Cell Death Dis 2024; 15:626. [PMID: 39191736 DOI: 10.1038/s41419-024-07015-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 08/15/2024] [Accepted: 08/19/2024] [Indexed: 08/29/2024]
Abstract
Mitochondria are highly dynamic organelles which undergo constant fusion and fission as part of the mitochondrial quality control. In genetic diseases and age-related neurodegenerative disorders, altered mitochondrial fission-fusion dynamics have been linked to impaired mitochondrial quality control, disrupted organelle integrity and function, thereby promoting neural dysfunction and death. The key enzyme regulating mitochondrial fission is the GTPase Dynamin-related Protein 1 (Drp1), which is also considered as a key player in mitochondrial pathways of regulated cell death. In particular, increasing evidence suggests a role for impaired mitochondrial dynamics and integrity in ferroptosis, which is an iron-dependent oxidative cell death pathway with relevance in neurodegeneration. In this study, we demonstrate that CRISPR/Cas9-mediated genetic depletion of Drp1 exerted protective effects against oxidative cell death by ferroptosis through preserved mitochondrial integrity and maintained redox homeostasis. Knockout of Drp1 resulted in mitochondrial elongation, attenuated ferroptosis-mediated impairment of mitochondrial membrane potential, and stabilized iron trafficking and intracellular iron storage. In addition, Drp1 deficiency exerted metabolic effects, with reduced basal and maximal mitochondrial respiration and a metabolic shift towards glycolysis. These metabolic effects further alleviated the mitochondrial contribution to detrimental ROS production thereby significantly enhancing neural cell resilience against ferroptosis. Taken together, this study highlights the key role of Drp1 in mitochondrial pathways of ferroptosis and expose the regulator of mitochondrial dynamics as a potential therapeutic target in neurological diseases involving oxidative dysregulation.
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Affiliation(s)
- Stephan Tang
- Institute for Pharmacology and Clinical Pharmacy, Philipps-University Marburg, Marburg, Germany
- Marburg Center of Mind, Brain and Behavior-CMBB, Marburg, Germany
| | - Anneke Fuß
- Institute for Pharmacology and Clinical Pharmacy, Philipps-University Marburg, Marburg, Germany
- Marburg Center of Mind, Brain and Behavior-CMBB, Marburg, Germany
- Institute of Reconstructive Neurobiology, Neurodevelopmental Genetics, University Bonn, LIFE & BRAIN Center, Bonn, Germany
| | - Zohreh Fattahi
- Institute for Pharmacology and Clinical Pharmacy, Philipps-University Marburg, Marburg, Germany
- Marburg Center of Mind, Brain and Behavior-CMBB, Marburg, Germany
| | - Carsten Culmsee
- Institute for Pharmacology and Clinical Pharmacy, Philipps-University Marburg, Marburg, Germany.
- Marburg Center of Mind, Brain and Behavior-CMBB, Marburg, Germany.
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2
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Upadhayay S, Kumar P. Mitochondrial targeted antioxidants as potential therapy for huntington's disease. Pharmacol Rep 2024; 76:693-713. [PMID: 38982016 DOI: 10.1007/s43440-024-00619-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 06/18/2024] [Accepted: 06/19/2024] [Indexed: 07/11/2024]
Abstract
Huntington's disease (HD) is an inherited neurodegenerative disorder caused by an expansion in CAG repeat on huntington (Htt) gene, leading to a degeneration of GABAergic medium spiny neurons (MSNs) in the striatum, resulting in the generation of reactive oxygen species, and decrease antioxidant activity. These pathophysiological alterations impair mitochondrial functions, leading to an increase in involuntary hyperkinetic movement. However, researchers investigated the neuroprotective effect of antioxidants using various animal models. Still, their impact is strictly limited to curtailing oxidative stress and increasing the antioxidant enzyme in the brain, which is less effective in HD. Meanwhile, researchers discovered Mitochondria-targeted antioxidants (MTAXs) that can improve mitochondrial functions and antioxidant activity through the modulation of mitochondrial signaling pathways, including peroxisome proliferator-activated receptor (PPAR)-coactivator 1 (PGC-1α), dynamin-related protein 1 (Drp1), mitochondrial fission protein 1 (Fis1), and Silent mating type information regulation 2 homolog 1 (SIRT-1), showing neuroprotective effects in HD. The present review discusses the clinical and preclinical studies that investigate the neuroprotective effect of MTAXs (SS31, XJB-5-131, MitoQ, bezafibrate, rosiglitazone, meldonium, coenzyme Q10, etc.) in HD. This brief literature review will help to understand the relevance of MTAXs in HD and enlighten the importance of MTAXs in future drug discovery and development.
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Affiliation(s)
- Shubham Upadhayay
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India
| | - Puneet Kumar
- Department of Pharmacology, Central University of Punjab, Ghudda, Bathinda, Punjab, 151401, India.
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3
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Yang Y, Jia X, Yang X, Wang J, Fang Y, Ying X, Zhang M, Wei J, Pan Y. Targeting VDAC: A potential therapeutic approach for mitochondrial dysfunction in Alzheimer's disease. Brain Res 2024; 1835:148920. [PMID: 38599511 DOI: 10.1016/j.brainres.2024.148920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 04/05/2024] [Indexed: 04/12/2024]
Abstract
Mitochondrial dysfunction has been implicated in the pathogenesis of Alzheimer's disease, a neurodegenerative disorder characterized by progressive cognitive decline. Voltage-dependent anion channel (VDAC), a protein located in the outer mitochondrial membrane, plays a critical role in regulating mitochondrial function and cellular energy metabolism. Recent studies have identified VDAC as a potential therapeutic target for Alzheimer's disease. This article aims to provide an overview of the role of VDAC in mitochondrial dysfunction, its association with Alzheimer's disease, and the potential of targeting VDAC for developing novel therapeutic interventions. Understanding the involvement of VDAC in Alzheimer's disease may pave the way for the development of effective treatments that can restore mitochondrial function and halt disease progression.
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Affiliation(s)
- Yaqian Yang
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Xiaotao Jia
- Department of Neurology, The Affifiliated Xi'an Central Hospital of Xi'an Jiaotong University College of Medicine, Xi'an, Shaanxi 710003, China
| | - Xinmao Yang
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Jie Wang
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Yan Fang
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Xiaoping Ying
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Meiqian Zhang
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Jing Wei
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China
| | - Yanfang Pan
- Department of Basic Medicine, Shaanxi University of Chinese Medicine, Xianyang 712046, China.
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4
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Liao Z, Zhang Q, Ren N, Zhao H, Zheng X. Progress in mitochondrial and omics studies in Alzheimer's disease research: from molecular mechanisms to therapeutic interventions. Front Immunol 2024; 15:1418939. [PMID: 39040111 PMCID: PMC11260616 DOI: 10.3389/fimmu.2024.1418939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Accepted: 06/21/2024] [Indexed: 07/24/2024] Open
Abstract
Alzheimer's disease (Alzheimer's disease, AD) is a progressive neurological disorder characterized by memory loss and cognitive impairment. It is characterized by the formation of tau protein neurofibrillary tangles and β-amyloid plaques. Recent studies have found that mitochondria in neuronal cells of AD patients exhibit various dysfunctions, including reduced numbers, ultrastructural changes, reduced enzyme activity, and abnormal kinetics. These abnormal mitochondria not only lead to the loss of normal neuronal cell function, but are also a major driver of AD progression. In this review, we will focus on the advances of mitochondria and their multi-omics in AD research, with particular emphasis on how mitochondrial dysfunction in AD drives disease progression. At the same time, we will focus on summarizing how mitochondrial genomics technologies have revealed specific details of these dysfunctions and how therapeutic strategies targeting mitochondria may provide new directions for future AD treatments. By delving into the key mechanisms of mitochondria in AD related to energy metabolism, altered kinetics, regulation of cell death, and dysregulation of calcium-ion homeostasis, and how mitochondrial multi-omics technologies can be utilized to provide us with a better understanding of these processes. In the future, mitochondria-centered therapeutic strategies will be a key idea in the treatment of AD.
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Affiliation(s)
- Zuning Liao
- Department of Neurology, Fourth People’s Hospital of Jinan, Jinan, China
| | - Qiying Zhang
- Department of Internal Medicine, Jinan Municipal Government Hospital, Jinan, China
| | - Na Ren
- Pharmacy Department, Jinan Municipal People’s Government Organs Outpatient Department, Jinan, China
| | - Haiyan Zhao
- Department of Pharmacy, Qihe County People’s Hospital, Dezhou, China
| | - Xueyan Zheng
- Department of Pharmacy, Jinan Second People’s Hospital, Jinan, China
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5
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Divya KP, Kanwar N, Anuranjana PV, Kumar G, Beegum F, George KT, Kumar N, Nandakumar K, Kanwal A. SIRT6 in Regulation of Mitochondrial Damage and Associated Cardiac Dysfunctions: A Possible Therapeutic Target for CVDs. Cardiovasc Toxicol 2024; 24:598-621. [PMID: 38689163 DOI: 10.1007/s12012-024-09858-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 04/05/2024] [Indexed: 05/02/2024]
Abstract
Cardiovascular diseases (CVDs) can be described as a global health emergency imploring possible prevention strategies. Although the pathogenesis of CVDs has been extensively studied, the role of mitochondrial dysfunction in CVD development has yet to be investigated. Diabetic cardiomyopathy, ischemic-reperfusion injury, and heart failure are some of the CVDs resulting from mitochondrial dysfunction Recent evidence from the research states that any dysfunction of mitochondria has an impact on metabolic alteration, eventually causes the death of a healthy cell and therefore, progressively directing to the predisposition of disease. Cardiovascular research investigating the targets that both protect and treat mitochondrial damage will help reduce the risk and increase the quality of life of patients suffering from various CVDs. One such target, i.e., nuclear sirtuin SIRT6 is strongly associated with cardiac function. However, the link between mitochondrial dysfunction and SIRT6 concerning cardiovascular pathologies remains poorly understood. Although the Role of SIRT6 in skeletal muscles and cardiomyocytes through mitochondrial regulation has been well understood, its specific role in mitochondrial maintenance in cardiomyocytes is poorly determined. The review aims to explore the domain-specific function of SIRT6 in cardiomyocytes and is an effort to know how SIRT6, mitochondria, and CVDs are related.
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Affiliation(s)
- K P Divya
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Navjot Kanwar
- Department of Pharmaceutical Sciences and Technology, Maharaja Ranjit Singh Punjab, Technical University, Bathinda, Punjab, 151005, India
| | - P V Anuranjana
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Gautam Kumar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
- School of Pharmacy, Sharda University, Greater Noida, Uttar Pradesh, 201310, India
| | - Fathima Beegum
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Krupa Thankam George
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Nitesh Kumar
- Department of Pharmacology, National Institute of Pharmaceutical Educations and Research, Hajipur, Bihar, 844102, India
| | - K Nandakumar
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India.
| | - Abhinav Kanwal
- Department of Pharmacology, All India Institute of Medical Sciences, Bathinda, Punjab, 151005, India.
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6
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Meng X, Song Q, Liu Z, Liu X, Wang Y, Liu J. Neurotoxic β-amyloid oligomers cause mitochondrial dysfunction-the trigger for PANoptosis in neurons. Front Aging Neurosci 2024; 16:1400544. [PMID: 38808033 PMCID: PMC11130508 DOI: 10.3389/fnagi.2024.1400544] [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: 03/13/2024] [Accepted: 04/29/2024] [Indexed: 05/30/2024] Open
Abstract
As the global population ages, the incidence of elderly patients with dementia, represented by Alzheimer's disease (AD), will continue to increase. Previous studies have suggested that β-amyloid protein (Aβ) deposition is a key factor leading to AD. However, the clinical efficacy of treating AD with anti-Aβ protein antibodies is not satisfactory, suggesting that Aβ amyloidosis may be a pathological change rather than a key factor leading to AD. Identification of the causes of AD and development of corresponding prevention and treatment strategies is an important goal of current research. Following the discovery of soluble oligomeric forms of Aβ (AβO) in 1998, scientists began to focus on the neurotoxicity of AβOs. As an endogenous neurotoxin, the active growth of AβOs can lead to neuronal death, which is believed to occur before plaque formation, suggesting that AβOs are the key factors leading to AD. PANoptosis, a newly proposed concept of cell death that includes known modes of pyroptosis, apoptosis, and necroptosis, is a form of cell death regulated by the PANoptosome complex. Neuronal survival depends on proper mitochondrial function. Under conditions of AβO interference, mitochondrial dysfunction occurs, releasing lethal contents as potential upstream effectors of the PANoptosome. Considering the critical role of neurons in cognitive function and the development of AD as well as the regulatory role of mitochondrial function in neuronal survival, investigation of the potential mechanisms leading to neuronal PANoptosis is crucial. This review describes the disruption of neuronal mitochondrial function by AβOs and elucidates how AβOs may activate neuronal PANoptosis by causing mitochondrial dysfunction during the development of AD, providing guidance for the development of targeted neuronal treatment strategies.
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Affiliation(s)
| | | | | | | | | | - Jinyu Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun, China
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7
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Fan RZ, Sportelli C, Lai Y, Salehe SS, Pinnell JR, Brown HJ, Richardson JR, Luo S, Tieu K. A partial Drp1 knockout improves autophagy flux independent of mitochondrial function. Mol Neurodegener 2024; 19:26. [PMID: 38504290 PMCID: PMC10953112 DOI: 10.1186/s13024-024-00708-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Accepted: 02/07/2024] [Indexed: 03/21/2024] Open
Abstract
BACKGROUND Dynamin-related protein 1 (Drp1) plays a critical role in mitochondrial dynamics. Partial inhibition of this protein is protective in experimental models of neurological disorders such as Parkinson's disease and Alzheimer's disease. The protective mechanism has been attributed primarily to improved mitochondrial function. However, the observations that Drp1 inhibition reduces protein aggregation in such neurological disorders suggest the involvement of autophagy. To investigate this potential novel protective mechanism of Drp1 inhibition, a model with impaired autophagy without mitochondrial involvement is needed. METHODS We characterized the effects of manganese (Mn), which causes parkinsonian-like symptoms in humans, on autophagy and mitochondria by performing dose-response studies in two cell culture models (stable autophagy HeLa reporter cells and N27 rat immortalized dopamine neuronal cells). Mitochondrial function was assessed using the Seahorse Flux Analyzer. Autophagy flux was monitored by quantifying the number of autophagosomes and autolysosomes, as well as the levels of other autophagy proteins. To strengthen the in vitro data, multiple mouse models (autophagy reporter mice and mutant Drp1+/- mice and their wild-type littermates) were orally treated with a low chronic Mn regimen that was previously reported to increase α-synuclein aggregation and transmission via exosomes. RNAseq, laser captured microdissection, immunofluorescence, immunoblotting, stereological cell counting, and behavioural studies were used. RESULTS IN VITRO: data demonstrate that at low non-toxic concentrations, Mn impaired autophagy flux but not mitochondrial function and morphology. In the mouse midbrain, RNAseq data further confirmed autophagy pathways were dysregulated but not mitochondrial related genes. Additionally, Mn selectively impaired autophagy in the nigral dopamine neurons but not the nearby nigral GABA neurons. In cells with a partial Drp1-knockdown and Drp1+/- mice, Mn induced autophagic impairment was significantly prevented. Consistent with these observations, Mn increased the levels of proteinase-K resistant α-synuclein and Drp1-knockdown protected against this pathology. CONCLUSIONS This study demonstrates that improved autophagy flux is a separate mechanism conferred by Drp1 inhibition independent of its role in mitochondrial fission. Given that impaired autophagy and mitochondrial dysfunction are two prominent features of neurodegenerative diseases, the combined protective mechanisms targeting these two pathways conferred by Drp1 inhibition make this protein an attractive therapeutic target.
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Affiliation(s)
- Rebecca Z Fan
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Carolina Sportelli
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Yanhao Lai
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Said S Salehe
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Jennifer R Pinnell
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Harry J Brown
- Department of Environmental Health Sciences, Florida International University, Miami, USA
- Biomolecular Sciences Institute, Florida International University, Miami, USA
| | - Jason R Richardson
- Department of Environmental Health Sciences, Florida International University, Miami, USA
| | - Shouqing Luo
- Peninsula Schools of Medicine and Dentistry, Plymouth University, Plymouth, UK
| | - Kim Tieu
- Department of Environmental Health Sciences, Florida International University, Miami, USA.
- Biomolecular Sciences Institute, Florida International University, Miami, USA.
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8
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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: 7] [Impact Index Per Article: 7.0] [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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9
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Alqahtani T, Deore SL, Kide AA, Shende BA, Sharma R, Chakole RD, Nemade LS, Kale NK, Borah S, Deokar SS, Behera A, Dhawal Bhandari D, Gaikwad N, Azad AK, Ghosh A. Mitochondrial dysfunction and oxidative stress in Alzheimer's disease, and Parkinson's disease, Huntington's disease and Amyotrophic Lateral Sclerosis -An updated review. Mitochondrion 2023:S1567-7249(23)00051-X. [PMID: 37269968 DOI: 10.1016/j.mito.2023.05.007] [Citation(s) in RCA: 41] [Impact Index Per Article: 41.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 05/18/2023] [Accepted: 05/27/2023] [Indexed: 06/05/2023]
Abstract
Misfolded proteins in the central nervous system can induce oxidative damage, which can contribute to neurodegenerative diseases in the mitochondria. Neurodegenerative patients face early mitochondrial dysfunction, impacting energy utilization. Amyloid-ß and tau problems both have an effect on mitochondria, which leads to mitochondrial malfunction and, ultimately, the onset of Alzheimer's disease. Cellular oxygen interaction yields reactive oxygen species within mitochondria, initiating oxidative damage to mitochondrial constituents. Parkinson's disease, linked to oxidative stress, α-synuclein aggregation, and inflammation, results from reduced brain mitochondria activity. Mitochondrial dynamics profoundly influence cellular apoptosis via distinct causative mechanisms. The condition known as Huntington's disease is characterized by an expansion of polyglutamine, primarily impactingthe cerebral cortex and striatum. Research has identified mitochondrial failure as an early pathogenic mechanism contributing to HD's selective neurodegeneration. The mitochondria are organelles that exhibit dynamism by undergoing fragmentation and fusion processes to attain optimal bioenergetic efficiency. They can also be transported along microtubules and regulateintracellular calcium homeostasis through their interaction with the endoplasmic reticulum. Additionally, the mitochondria produce free radicals. The functions of eukaryotic cells, particularly in neurons, have significantly deviated from the traditionally assigned role of cellular energy production. Most of them areimpaired in HD, which may lead to neuronal dysfunction before symptoms manifest. This article summarises the most important changes in mitochondrial dynamics that come from neurodegenerative diseases including Alzheimer's, Parkinson's, Huntington's and Amyotrophic Lateral Sclerosis. Finally, we discussed about novel techniques that can potentially treat mitochondrial malfunction and oxidative stress in four most dominating neuro disorders.
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Affiliation(s)
- Taha Alqahtani
- Department of Pharmaceutics, College of Pharmacy, King Khalid University, Abha 62529, Saudi Arabia.
| | | | | | | | - Ritika Sharma
- University institute of pharma sciences, Chandigarh University, Mohali, Punjab.
| | - Rita Dadarao Chakole
- Government College of Pharmacy Vidyanagar Karad Dist Satara Maharashtra Pin 415124.
| | - Lalita S Nemade
- Govindrao Nikam College of Pharmacy Sawarde Maharashtra 415606.
| | | | - Sudarshana Borah
- Department of Pharmacognosy, University of Science and Technology Meghalaya Technocity, Ri-Bhoi District Meghalaya.
| | | | - Ashok Behera
- Faculty of Pharmacy, DIT University, Dehradun,Uttarakhand.
| | - Divya Dhawal Bhandari
- University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh 160014. India.
| | - Nikita Gaikwad
- Department of Pharmaceutics, P.E.S. Modern College of Pharmacy, Nigdi, Pune-411044.
| | - Abul Kalam Azad
- Faculty of Pharmacy MAHSA University Bandar Saujana putra, 42610, Selangor, Malaysia
| | - Arabinda Ghosh
- Department of Botany, Gauhati University, Guwahati, 781014, Assam, India
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10
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Bera A, Lavanya G, Reshmi R, Dev K, Kumar R. Mechanistic and therapeutic role of Drp1 in the pathogenesis of Alzheimer's disease. Eur J Neurosci 2022; 56:5516-5531. [PMID: 35078269 DOI: 10.1111/ejn.15611] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Revised: 12/31/2021] [Accepted: 01/13/2022] [Indexed: 12/14/2022]
Abstract
Alzheimer's disease (AD), a progressive neurodegenerative disorder, has emerged as the most common form of dementia in the elderly. Two major pathological hallmarks have been identified for AD: extracellular amyloid plaques and intracellular neurofibrillary tangles (NFT). Recently, dynamin-related protein 1 (Drp1) was recognized to contribute significantly towards the pathogenesis of AD. Drp1 is primarily located in the cytosol, from where it translocates to the mitochondrial outer membrane and drives the mitochondrial fission via GTP hydrolysis. Drp1 interacts with Aβ and phosphorylated tau, leading to excessive mitochondrial fragmentation, which in turn results in synaptic dysfunction, neuronal damage and cognitive decline. Several studies suggest an increase in the level of Drp1 in the post-mortem brain specimen collected from the AD patients and murine models of AD. Interestingly, heterozygous deletion of Drp1 in the transgenic murine model of AD ameliorates the mitochondrial dysfunction, improving learning and memory. The current review article discusses the possible mechanistic pathways by which Drp1 can influence the pathogenesis of AD. Besides, it will describe various inhibitors for Drp1 and their potential role as therapeutics for AD in the future.
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Affiliation(s)
- Arpita Bera
- Department of Biotechnology, GITAM Institute of Sciences, GITAM (Deemed to be) University, Visakhapatnam, India
| | - Gantyada Lavanya
- Department of Biotechnology, GITAM Institute of Sciences, GITAM (Deemed to be) University, Visakhapatnam, India
| | - Ravada Reshmi
- Department of Biotechnology, GITAM Institute of Sciences, GITAM (Deemed to be) University, Visakhapatnam, India
| | - Kapil Dev
- Department of Biotechnology, Jamia Millia Islamia, New Delhi, India
| | - Rahul Kumar
- Department of Biotechnology, GITAM Institute of Sciences, GITAM (Deemed to be) University, Visakhapatnam, India
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11
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Adhikari D, Lee IW, Al-Zubaidi U, Liu J, Zhang QH, Yuen WS, He L, Winstanley Y, Sesaki H, Mann JR, Robker RL, Carroll J. Depletion of oocyte dynamin-related protein 1 shows maternal-effect abnormalities in embryonic development. SCIENCE ADVANCES 2022; 8:eabl8070. [PMID: 35704569 PMCID: PMC9200162 DOI: 10.1126/sciadv.abl8070] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Eggs contain about 200,000 mitochondria that generate adenosine triphosphate and metabolites essential for oocyte development. Mitochondria also integrate metabolism and transcription via metabolites that regulate epigenetic modifiers, but there is no direct evidence linking oocyte mitochondrial function to the maternal epigenome and subsequent embryo development. Here, we have disrupted oocyte mitochondrial function via deletion of the mitochondrial fission factor Drp1. Fission-deficient oocytes exhibit a high frequency of failure in peri- and postimplantation development. This is associated with altered mitochondrial function, changes in the oocyte transcriptome and proteome, altered subcortical maternal complex, and a decrease in oocyte DNA methylation and H3K27me3. Transplanting pronuclei of fertilized Drp1 knockout oocytes to normal ooplasm fails to rescue embryonic lethality. We conclude that mitochondrial function plays a role in establishing the maternal epigenome, with serious consequences for embryo development.
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Affiliation(s)
- Deepak Adhikari
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
- Corresponding author. (D.A.); (J.C.)
| | - In-won Lee
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Usama Al-Zubaidi
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
- Applied Embryology Department, High Institute for Infertility Diagnosis and Assisted Reproductive Technologies, Al-Nahrain University, Baghdad, Iraq
| | - Jun Liu
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Qing-Hua Zhang
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Wai Shan Yuen
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Likun He
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Yasmyn Winstanley
- School of Biomedicine, Discipline of Reproduction and Development, Robinson Research Institute, The University of Adelaide, South Australia 5005, Australia
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, 109 Hunterian, Baltimore, MD 21205, USA
| | - Jeffrey R. Mann
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
| | - Rebecca L. Robker
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
- School of Pediatrics and Reproductive Health, Robinson Research Institute, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - John Carroll
- Development and Stem Cell Program and Department of Anatomy and Developmental Biology, Monash Biomedicine Discovery Institute, Monash University, Melbourne, Victoria 3800, Australia
- Corresponding author. (D.A.); (J.C.)
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12
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Kandimalla R, Manczak M, Pradeepkiran JA, Morton H, Reddy PH. A partial reduction of Drp1 improves cognitive behavior and enhances mitophagy, autophagy and dendritic spines in a transgenic Tau mouse model of Alzheimer disease. Hum Mol Genet 2022; 31:1788-1805. [PMID: 34919689 PMCID: PMC9169458 DOI: 10.1093/hmg/ddab360] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/18/2021] [Accepted: 12/10/2021] [Indexed: 11/13/2022] Open
Abstract
The purpose of our study is to understand the impact of a partial dynamin-related protein 1 (Drp1) on cognitive behavior, mitophagy, autophagy and mitochondrial and synaptic activities in transgenic Tau mice in Alzheimer's disease (AD). Our laboratory reported increased levels of amyloid-beta (Aβ) and phosphorylated Tau (P-Tau) and reported that abnormal interactions between Aβ and Drp1, P-Tau and Drp1 induced increased mitochondrial fragmentation and reduced fusion and synaptic activities in AD. These abnormal interactions result in the proliferation of dysfunctional mitochondria in AD neurons. Recent research on mitochondria revealed that fission protein Drp1 is largely implicated in mitochondrial dynamics in AD. To determine the impact of reduced Drp1 in AD, we recently crossed transgenic Tau mice with Drp1 heterozygote knockout (Drp1+/-) mice and generated double mutant (P301LDrp1+/-) mice. In the current study, we assessed the cognitive behavior, mRNA and protein levels of mitophagy, autophagy, mitochondrial biogenesis, dynamics and synaptic genes, mitochondrial morphology and mitochondrial function and dendritic spines in Tau mice relative to double mutant mice. When compared with Tau mice, double mutant mice did better on the Morris Maze (reduced latency to find hidden platform, increased swimming speed and time spent on quadrant) and rotarod (stayed a longer period of time) tests. Both mRNA- and protein-level autophagy, mitophagy, mitochondrial biogenesis and synaptic proteins were increased in double mutant mice compared with Tau (P301L) mice. Dendritic spines were significantly increased; mitochondrial number was reduced and length was increased in double mutant mice. Based on these observations, we conclude that reduced Drp1 is beneficial in a symptomatic-transgenic Tau (P301L) mice.
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Affiliation(s)
- Ramesh Kandimalla
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Applied Biology, CSIR-Indian Institute of Technology, Uppal Road, Tarnaka, Hyderabad, Telangana 50000, India
| | - Maria Manczak
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | | | - Hallie Morton
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
| | - P Hemachandra Reddy
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
- Department of Internal Medicine, 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 Public Health, Graduate School of Biomedical Sciences, 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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13
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Reiss AB, Ahmed S, Dayaramani C, Glass AD, Gomolin IH, Pinkhasov A, Stecker MM, Wisniewski T, De Leon J. The role of mitochondrial dysfunction in Alzheimer's disease: A potential pathway to treatment. Exp Gerontol 2022; 164:111828. [DOI: 10.1016/j.exger.2022.111828] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/15/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022]
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14
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Kim D, Sesaki H, Roy S. Reduced Levels of Drp1 Protect against Development of Retinal Vascular Lesions in Diabetic Retinopathy. Cells 2021; 10:cells10061379. [PMID: 34204906 PMCID: PMC8226547 DOI: 10.3390/cells10061379] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 05/27/2021] [Accepted: 05/27/2021] [Indexed: 12/12/2022] Open
Abstract
High glucose (HG)-induced Drp1 overexpression contributes to mitochondrial dysfunction and promotes apoptosis in retinal endothelial cells. However, it is unknown whether inhibiting Drp1 overexpression protects against the development of retinal vascular cell loss in diabetes. To investigate whether reduced Drp1 level is protective against diabetes-induced retinal vascular lesions, four groups of mice: wild type (WT) control mice, streptozotocin (STZ)-induced diabetic mice, Drp1+/− mice, and STZ-induced diabetic Drp1+/− mice were examined after 16 weeks of diabetes. Western Blot analysis indicated a significant increase in Drp1 expression in the diabetic retinas compared to those of WT mice; retinas of diabetic Drp1+/− mice showed reduced Drp1 level compared to those of diabetic mice. A significant increase in the number of acellular capillaries (AC) and pericyte loss (PL) was observed in the retinas of diabetic mice compared to those of the WT control mice. Importantly, a significant decrease in the number of AC and PL was observed in retinas of diabetic Drp1+/− mice compared to those of diabetic mice concomitant with increased expression of pro-apoptotic genes, Bax, cleaved PARP, and increased cleaved caspase-3 activity. Preventing diabetes-induced Drp1 overexpression may have protective effects against the development of vascular lesions, characteristic of diabetic retinopathy.
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Affiliation(s)
- Dongjoon Kim
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA;
- Department of Ophthalmology, Boston University School of Medicine, Boston, MA 02118, USA
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA;
| | - Sayon Roy
- Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA;
- Department of Ophthalmology, Boston University School of Medicine, Boston, MA 02118, USA
- Correspondence: ; Tel.: +1-617-358-6801
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15
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Burillo J, Marqués P, Jiménez B, González-Blanco C, Benito M, Guillén C. Insulin Resistance and Diabetes Mellitus in Alzheimer's Disease. Cells 2021; 10:1236. [PMID: 34069890 PMCID: PMC8157600 DOI: 10.3390/cells10051236] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/11/2021] [Accepted: 05/13/2021] [Indexed: 12/12/2022] Open
Abstract
Type 2 diabetes mellitus is a progressive disease that is characterized by the appearance of insulin resistance. The term insulin resistance is very wide and could affect different proteins involved in insulin signaling, as well as other mechanisms. In this review, we have analyzed the main molecular mechanisms that could be involved in the connection between type 2 diabetes and neurodegeneration, in general, and more specifically with the appearance of Alzheimer's disease. We have studied, in more detail, the different processes involved, such as inflammation, endoplasmic reticulum stress, autophagy, and mitochondrial dysfunction.
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Affiliation(s)
- Jesús Burillo
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Patricia Marqués
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Beatriz Jiménez
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Carlos González-Blanco
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Manuel Benito
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
| | - Carlos Guillén
- Department of Biochemistry, Complutense University, 28040 Madrid, Spain; (J.B.); (P.M.); (B.J.); (C.G.-B.); (M.B.)
- Centro de Investigación Biomédica en Red (CIBER) de Diabetes y Enfermedades Metabólicas Asociadas (CIBERDEM), 28040 Madrid, Spain
- Mechanisms of Insulin Resistance (MOIR2), General Direction of Universities and Investigation (CCMM), 28040 Madrid, Spain
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16
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Cooper HA, Cicalese S, Preston KJ, Kawai T, Okuno K, Choi ET, Kasahara S, Uchida HA, Otaka N, Scalia R, Rizzo V, Eguchi S. Targeting mitochondrial fission as a potential therapeutic for abdominal aortic aneurysm. Cardiovasc Res 2021; 117:971-982. [PMID: 32384150 PMCID: PMC7898955 DOI: 10.1093/cvr/cvaa133] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Revised: 04/15/2020] [Accepted: 04/30/2020] [Indexed: 11/12/2022] Open
Abstract
AIMS Angiotensin II (AngII) is a potential contributor to the development of abdominal aortic aneurysm (AAA). In aortic vascular smooth muscle cells (VSMCs), exposure to AngII induces mitochondrial fission via dynamin-related protein 1 (Drp1). However, pathophysiological relevance of mitochondrial morphology in AngII-associated AAA remains unexplored. Here, we tested the hypothesis that mitochondrial fission is involved in the development of AAA. METHODS AND RESULTS Immunohistochemistry was performed on human AAA samples and revealed enhanced expression of Drp1. In C57BL6 mice treated with AngII plus β-aminopropionitrile, AAA tissue also showed an increase in Drp1 expression. A mitochondrial fission inhibitor, mdivi1, attenuated AAA size, associated aortic pathology, Drp1 protein induction, and mitochondrial fission but not hypertension in these mice. Moreover, western-blot analysis showed that induction of matrix metalloproteinase-2, which precedes the development of AAA, was blocked by mdivi1. Mdivi1 also reduced the development of AAA in apolipoprotein E-deficient mice infused with AngII. As with mdivi1, Drp1+/- mice treated with AngII plus β-aminopropionitrile showed a decrease in AAA compared to control Drp1+/+ mice. In abdominal aortic VSMCs, AngII induced phosphorylation of Drp1 and mitochondrial fission, the latter of which was attenuated with Drp1 silencing as well as mdivi1. AngII also induced vascular cell adhesion molecule-1 expression and enhanced leucocyte adhesion and mitochondrial oxygen consumption in smooth muscle cells, which were attenuated with mdivi1. CONCLUSION These data indicate that Drp1 and mitochondrial fission play salient roles in AAA development, which likely involves mitochondrial dysfunction and inflammatory activation of VSMCs.
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MESH Headings
- Aminopropionitrile
- Angiotensin II
- Animals
- Anti-Inflammatory Agents/pharmacology
- Aorta, Abdominal/drug effects
- Aorta, Abdominal/metabolism
- Aorta, Abdominal/pathology
- Aortic Aneurysm, Abdominal/chemically induced
- Aortic Aneurysm, Abdominal/metabolism
- Aortic Aneurysm, Abdominal/pathology
- Aortic Aneurysm, Abdominal/prevention & control
- Case-Control Studies
- Cell Adhesion/drug effects
- Cells, Cultured
- Disease Models, Animal
- Dynamins/genetics
- Dynamins/metabolism
- Humans
- Leukocytes/drug effects
- Leukocytes/metabolism
- Male
- Mice, Inbred C57BL
- Mice, Knockout, ApoE
- Mitochondria, Muscle/drug effects
- Mitochondria, Muscle/genetics
- Mitochondria, Muscle/metabolism
- Mitochondria, Muscle/pathology
- Mitochondrial Dynamics/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/pathology
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/metabolism
- Myocytes, Smooth Muscle/pathology
- Oxygen Consumption/drug effects
- Phosphorylation
- Quinazolinones/pharmacology
- Mice
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Affiliation(s)
- Hannah A Cooper
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Stephanie Cicalese
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Kyle J Preston
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Tatsuo Kawai
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Keisuke Okuno
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Eric T Choi
- Department of Surgery, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Shingo Kasahara
- Department of Cardiovascular Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Haruhito A Uchida
- Department of Chronic Kidney Disease and Cardiovascular Disease, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Nozomu Otaka
- Department of Nephrology, Rheumatology, Endocrinology and Metabolism, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Rosario Scalia
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Victor Rizzo
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
| | - Satoru Eguchi
- Cardiovascular Research Center, Lewis Katz School of Medicine, Temple University, Philadelphia, PA 19140, USA
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17
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Medala VK, Gollapelli B, Dewanjee S, Ogunmokun G, Kandimalla R, Vallamkondu J. Mitochondrial dysfunction, mitophagy, and role of dynamin-related protein 1 in Alzheimer's disease. J Neurosci Res 2021; 99:1120-1135. [PMID: 33465841 DOI: 10.1002/jnr.24781] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 12/10/2020] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is the most common type of dementia and progressive neurodegenerative disease. The presence of β-amyloid (Aβ) plaques and phosphorylated Tau tangles are considered to be the two main hallmarks of AD. Recent findings have shown that different changes in the structure and dynamics of mitochondria play an important role in AD pathology progression. Mitochondrial changes in AD are expressed as enhanced mitochondrial fragmentation, altered mitochondrial dynamics, and changes in the expression of mitochondrial biogenesis genes in vitro and in vivo models. Therefore, targeting mitochondria and associated mitochondrial proteins seems to be a promising alternative instead of targeting Aβ and Tau in the prevention of Alzheimer's disease. The dynamin-related protein (Drp1) is one such protein that plays an important role in the regulation of mitochondrial division and maintenance of mitochondrial structures. Few researchers have shown that inhibition of Drp1 GTPase activity in neuronal cells rescues excessive mitochondrial fragmentation. In addition, the growing evidence revealed that Drp1 can interact with both Aβ and Tau protein in human brain tissues and mouse models. In this review, we would like to update existing knowledge about various changes in and around mitochondria related to the pathogenesis of Alzheimer's disease, with particular emphasis on mitophagy and autophagy.
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Affiliation(s)
| | - Buchaiah Gollapelli
- Department of Physics, National Institute of Technology-Warangal, Warangal, India
| | - Saikat Dewanjee
- Advanced Pharmacognosy Research Laboratory, Department of Pharmaceutical Technology, Jadavpur University, Kolkata, India
| | | | - Ramesh Kandimalla
- Applied Biology, CSIR-Indian Institute of Chemical Technology, Hyderabad, India.,Department of Biochemistry, Kakatiya Medical College, Warangal, India
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18
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Ramaccini D, Montoya-Uribe V, Aan FJ, Modesti L, Potes Y, Wieckowski MR, Krga I, Glibetić M, Pinton P, Giorgi C, Matter ML. Mitochondrial Function and Dysfunction in Dilated Cardiomyopathy. Front Cell Dev Biol 2021; 8:624216. [PMID: 33511136 PMCID: PMC7835522 DOI: 10.3389/fcell.2020.624216] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022] Open
Abstract
Cardiac tissue requires a persistent production of energy in order to exert its pumping function. Therefore, the maintenance of this function relies on mitochondria that represent the “powerhouse” of all cardiac activities. Mitochondria being one of the key players for the proper functioning of the mammalian heart suggests continual regulation and organization. Mitochondria adapt to cellular energy demands via fusion-fission events and, as a proof-reading ability, undergo mitophagy in cases of abnormalities. Ca2+ fluxes play a pivotal role in regulating all mitochondrial functions, including ATP production, metabolism, oxidative stress balance and apoptosis. Communication between mitochondria and others organelles, especially the sarcoplasmic reticulum is required for optimal function. Consequently, abnormal mitochondrial activity results in decreased energy production leading to pathological conditions. In this review, we will describe how mitochondrial function or dysfunction impacts cardiac activities and the development of dilated cardiomyopathy.
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Affiliation(s)
- Daniela Ramaccini
- University of Hawaii Cancer Center, Honolulu, HI, United States.,Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Laboratory of Technologies for Advanced Therapy (LTTA), Technopole of Ferrara, Ferrara, Italy
| | | | - Femke J Aan
- University of Hawaii Cancer Center, Honolulu, HI, United States
| | - Lorenzo Modesti
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Laboratory of Technologies for Advanced Therapy (LTTA), Technopole of Ferrara, Ferrara, Italy
| | - Yaiza Potes
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Mariusz R Wieckowski
- Laboratory of Mitochondrial Biology and Metabolism, Nencki Institute of Experimental Biology of Polish Academy of Sciences, Warsaw, Poland
| | - Irena Krga
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Marija Glibetić
- Center of Research Excellence in Nutrition and Metabolism, Institute for Medical Research, University of Belgrade, Belgrade, Serbia
| | - Paolo Pinton
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Laboratory of Technologies for Advanced Therapy (LTTA), Technopole of Ferrara, Ferrara, Italy.,Maria Cecilia Hospital, GVM Care & Research, Cotignola, Italy
| | - Carlotta Giorgi
- Department of Medical Sciences, University of Ferrara, Ferrara, Italy.,Laboratory of Technologies for Advanced Therapy (LTTA), Technopole of Ferrara, Ferrara, Italy
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19
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Defective mitophagy in Alzheimer's disease. Ageing Res Rev 2020; 64:101191. [PMID: 33022416 DOI: 10.1016/j.arr.2020.101191] [Citation(s) in RCA: 170] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2020] [Revised: 08/25/2020] [Accepted: 09/28/2020] [Indexed: 02/06/2023]
Abstract
Alzheimer's disease (AD) is a progressive, mental illness without cure. Several years of intense research on postmortem AD brains, cell and mouse models of AD have revealed that multiple cellular changes are involved in the disease process, including mitochondrial abnormalities, synaptic damage, and glial/astrocytic activation, in addition to age-dependent accumulation of amyloid beta (Aβ) and hyperphosphorylated tau (p-tau). Synaptic damage and mitochondrial dysfunction are early cellular changes in the disease process. Healthy and functionally active mitochondria are essential for cellular functioning. Dysfunctional mitochondria play a central role in aging and AD. Mitophagy is a cellular process whereby damaged mitochondria are selectively removed from cell and mitochondrial quality and biogenesis. Mitophagy impairments cause the progressive accumulation of defective organelle and damaged mitochondria in cells. In AD, increased levels of Aβ and p-tau can induce reactive oxygen species (ROS) production, causing excessive fragmentation of mitochondria and promoting defective mitophagy. The current article discusses the latest developments of mitochondrial research and also highlights multiple types of mitophagy, including Aβ and p-tau-induced mitophagy, stress-induced mitophagy, receptor-mediated mitophagy, ubiquitin mediated mitophagy and basal mitophagy. This article also discusses the physiological states of mitochondria, including fission-fusion balance, Ca2+ transport, and mitochondrial transport in normal and diseased conditions. Our article summarizes current therapeutic interventions, like chemical or natural mitophagy enhancers, that influence mitophagy in AD. Our article discusses whether a partial reduction of Drp1 can be a mitophagy enhancer and a therapeutic target for mitophagy in AD and other neurological diseases.
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20
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Zhang X, Wang R, Hu D, Sun X, Fujioka H, Lundberg K, Chan ER, Wang Q, Xu R, Flanagan ME, Pieper AA, Qi X. Oligodendroglial glycolytic stress triggers inflammasome activation and neuropathology in Alzheimer's disease. SCIENCE ADVANCES 2020; 6:6/49/eabb8680. [PMID: 33277246 PMCID: PMC7717916 DOI: 10.1126/sciadv.abb8680] [Citation(s) in RCA: 72] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 10/21/2020] [Indexed: 05/05/2023]
Abstract
Myelin degeneration and white matter loss resulting from oligodendrocyte (OL) death are early events in Alzheimer's disease (AD) that lead to cognitive deficits; however, the underlying mechanism remains unknown. Here, we find that mature OLs in both AD patients and an AD mouse model undergo NLR family pyrin domain containing 3 (NLRP3)-dependent Gasdermin D-associated inflammatory injury, concomitant with demyelination and axonal degeneration. The mature OL-specific knockdown of dynamin-related protein 1 (Drp1; a mitochondrial fission guanosine triphosphatase) abolishes NLRP3 inflammasome activation, corrects myelin loss, and improves cognitive ability in AD mice. Drp1 hyperactivation in mature OLs induces a glycolytic defect in AD models by inhibiting hexokinase 1 (HK1; a mitochondrial enzyme that initiates glycolysis), which triggers NLRP3-associated inflammation. These findings suggest that OL glycolytic deficiency plays a causal role in AD development. The Drp1-HK1-NLRP3 signaling axis may be a key mechanism and therapeutic target for white matter degeneration in AD.
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Affiliation(s)
- Xinwen Zhang
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Rihua Wang
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Di Hu
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Xiaoyan Sun
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Hisashi Fujioka
- Electron Microscopy Core Facility, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Kathleen Lundberg
- Center for Proteomics and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Ernest R Chan
- Center for Artificial Intelligence in Drug Discovery, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Quanqiu Wang
- Center for Artificial Intelligence in Drug Discovery, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Rong Xu
- Center for Artificial Intelligence in Drug Discovery, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA
| | - Margaret E Flanagan
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
- Department of Pathology, Northwestern University, Chicago, IL 60611, USA
| | - Andrew A Pieper
- Harrington Discovery Institute, University Hospitals Cleveland Medical Center, Cleveland, OH 44106, USA
- Department of Psychiatry Case Western Reserve University, Geriatric Research Education and Clinical Centers, Louis Stokes Cleveland VAMC, Cleveland, OH 44106, USA
| | - Xin Qi
- Department of Physiology and Biophysics, Case Western Reserve University School of Medicine, Cleveland, OH 44106, USA.
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21
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Prieto J, Ponsoda X, Izpisua Belmonte JC, Torres J. Mitochondrial dynamics and metabolism in induced pluripotency. Exp Gerontol 2020; 133:110870. [PMID: 32045634 DOI: 10.1016/j.exger.2020.110870] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 12/20/2019] [Accepted: 02/05/2020] [Indexed: 12/15/2022]
Abstract
Somatic cells can be reprogrammed to pluripotency by either ectopic expression of defined factors or exposure to chemical cocktails. During reprogramming, somatic cells undergo dramatic changes in a wide range of cellular processes, such as metabolism, mitochondrial morphology and function, cell signaling pathways or immortalization. Regulation of these processes during cell reprograming lead to the acquisition of a pluripotent state, which enables indefinite propagation by symmetrical self-renewal without losing the ability of reprogrammed cells to differentiate into all cell types of the adult. In this review, recent data from different laboratories showing how these processes are controlled during the phenotypic transformation of a somatic cell into a pluripotent stem cell will be discussed.
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Affiliation(s)
- Javier Prieto
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Calle Dr. Moliner 50, 46100 Burjassot, Spain; Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA.
| | - Xavier Ponsoda
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Calle Dr. Moliner 50, 46100 Burjassot, Spain; Instituto de Investigación Sanitaria (INCLIVA), Avenida de Menéndez y Pelayo 4, 46010, Valencia, Spain
| | - Juan Carlos Izpisua Belmonte
- Gene Expression Laboratory, Salk Institute for Biological Studies, 10010 North Torrey Pines Road, La Jolla, CA 92037, USA
| | - Josema Torres
- Departamento Biología Celular, Biología Funcional y Antropología Física, Universitat de València, Calle Dr. Moliner 50, 46100 Burjassot, Spain; Instituto de Investigación Sanitaria (INCLIVA), Avenida de Menéndez y Pelayo 4, 46010, Valencia, Spain.
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22
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T-2 Toxin-Induced Oxidative Stress Leads to Imbalance of Mitochondrial Fission and Fusion to Activate Cellular Apoptosis in the Human Liver 7702 Cell Line. Toxins (Basel) 2020; 12:toxins12010043. [PMID: 31936883 PMCID: PMC7020450 DOI: 10.3390/toxins12010043] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/06/2020] [Accepted: 01/07/2020] [Indexed: 12/15/2022] Open
Abstract
T-2 toxin, as a highly toxic mycotoxin to humans and animals, induces oxidative stress and apoptosis in various cells and tissues. Apoptosis and mitochondrial fusion/fission are two tightly interconnected processes that are crucial for maintaining physiological homeostasis. However, the role of mitochondrial fusion/fission in apoptosis of T-2 toxin remains unknown. Hence, we aimed to explore the putative role of mitochondrial fusion/fission on T-2 toxin induced apoptosis in normal human liver (HL-7702) cells. T-2 toxin treatment (0, 0.1, 1.0, or 10 μg/L) for 24 h caused decreased cell viability and ATP concentration and increased production of (ROS), as seen by a loss of mitochondrial membrane potential (∆Ψm) and increase in mitochondrial fragmentation. Subsequently, the mitochondrial dynamic imbalance was activated, evidenced by a dose-dependent decrease and increase in the protein expression of mitochondrial fusion (OPA1, Mfn1, and Mfn2) and fission (Drp1 and Fis1), respectively. Furthermore, the T-2 toxin promoted the release of cytochrome c from mitochondria to cytoplasm and induced cell apoptosis triggered by upregulation of Bax and Bax/Bcl-2 ratios, and further activated the caspase pathways. Taken together, these results indicate that altered mitochondrial dynamics induced by oxidative stress with T-2 toxin exposure likely contribute to mitochondrial injury and HL-7702 cell apoptosis.
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Yu F, Abdelwahid E, Xu T, Hu L, Wang M, Li Y, Mogharbel BF, de Carvalho KAT, Guarita-Souza LC, An Y, Li P. The role of mitochondrial fusion and fission in the process of cardiac oxidative stress. Histol Histopathol 2019; 35:541-552. [PMID: 31820815 DOI: 10.14670/hh-18-191] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Mitochondria are the energy suppliers in the cell and undergo constant fusion and fission to meet metabolic demand during the cell life cycle. Well-balanced mitochondrial dynamics are extremely important and necessary for cell survival as well as for tissue homeostasis. Cardiomyocytes contain large numbers of mitochondria to satisfy the high energy demand. It has been established that deregulated processes of mitochondrial dynamics play a major role in myocardial cell death. Currently, cardiac mitochondrial cell death pathways attract great attention in the cell biology and regenerative medicine fields. Importantly, mitochondrial dynamics are tightly linked to oxidative stress-induced cardiac damage. This review summarizes molecular mechanisms of mitochondrial fusion and fission processes and their potential roles in myocardial cell death triggered by oxidative stress. Advances in understanding the effect of both normal and abnormal mitochondrial dynamics on heart protection will lead to significant improvement of therapeutic discoveries.
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Affiliation(s)
- Fei Yu
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Eltyeb Abdelwahid
- Feinberg School of Medicine, Feinberg Cardiovascular Research Institute, Northwestern University, Chicago, IL, USA.
| | - Tao Xu
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Longgang Hu
- Department of Cardiology, Affiliated Hospital of Qingdao University, Qingdao, China
| | - Man Wang
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China
| | - Yuzhen Li
- Department of Pathophysiology, Institute of Basic Medical Science, PLA General Hospital, Beijing, China
| | - Bassam Felipe Mogharbel
- Cell Therapy and Biotechnology in Regenerative Medicine Research Group, Pequeno Príncipe Faculty, Pelé Pequeno Príncipe Institute, Curitiba, Brazil
| | | | - Luiz Cesar Guarita-Souza
- Experimental Laboratory of Institute of Biological and Health Sciences of Pontifical Catholic University of Parana, Curitiba, Brazil
| | - Yi An
- Department of cardiology, Affiliated hospital of Qingdao University, Qingdao, China.
| | - Peifeng Li
- Institute for Translation Medicine, Medical College, Qingdao University, Qingdao, China.
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24
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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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25
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Gerber S, Charif M, Chevrollier A, Chaumette T, Angebault C, Kane S, Paris A, Alban J, Quiles M, Delettre C, Bonneau D, Procaccio V, Amati-Bonneau P, Reynier P, Leruez S, Calmon R, Boddaert N, Funalot B, Rio M, Bouccara D, Meunier I, Sesaki H, Kaplan J, Hamel CP, Rozet JM, Lenaers G. Reply: The expanding neurological phenotype of DNM1L-related disorders. Brain 2019. [PMID: 29529130 DOI: 10.1093/brain/awy027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Sylvie Gerber
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Majida Charif
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Arnaud Chevrollier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Tanguy Chaumette
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Claire Angebault
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Selma Kane
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Aurélien Paris
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Jennifer Alban
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Mélanie Quiles
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Cécile Delettre
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Dominique Bonneau
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Vincent Procaccio
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Patrizia Amati-Bonneau
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Pascal Reynier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Stéphanie Leruez
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Raphael Calmon
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Nathalie Boddaert
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Benoit Funalot
- Department of Genetics, IHU Necker-Enfants Malades, University Paris Descartes, 75015 Paris, France.,Department of Genetics, CHU Henri Mondor, 94010 Créteil, France.,Department of Pediatric Neurology, IHU Necker Enfants Malades and Image at Imagine, INSERM UMR1163, Imagine Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Marlène Rio
- Department of Genetics, IHU Necker-Enfants Malades, University Paris Descartes, 75015 Paris, France.,Department of Genetics, CHU Henri Mondor, 94010 Créteil, France.,Department of Pediatric Neurology, IHU Necker Enfants Malades and Image at Imagine, INSERM UMR1163, Imagine Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Didier Bouccara
- Service d'ORL, Hôpital Universitaire Pitié-Salpêtrière, 75013 Paris, France
| | - Isabelle Meunier
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Josseline Kaplan
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Christian P Hamel
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Jean-Michel Rozet
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Guy Lenaers
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
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Flannery PJ, Trushina E. Mitochondrial dynamics and transport in Alzheimer's disease. Mol Cell Neurosci 2019; 98:109-120. [PMID: 31216425 DOI: 10.1016/j.mcn.2019.06.009] [Citation(s) in RCA: 108] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 06/03/2019] [Accepted: 06/13/2019] [Indexed: 01/18/2023] Open
Abstract
Mitochondrial dysfunction is now recognized as a contributing factor to the early pathology of multiple human conditions including neurodegenerative diseases. Mitochondria are signaling organelles with a multitude of functions ranging from energy production to a regulation of cellular metabolism, energy homeostasis, stress response, and cell fate. The success of these complex processes critically depends on the fidelity of mitochondrial dynamics that include the ability of mitochondria to change shape and location in the cell, which is essential for the maintenance of proper function and quality control, particularly in polarized cells such as neurons. This review highlights several aspects of alterations in mitochondrial dynamics in Alzheimer's disease, which may contribute to the etiology of this debilitating condition. We also discuss therapeutic strategies to improve mitochondrial dynamics and function that may provide an alternative approach to failed amyloid-directed interventions.
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Affiliation(s)
| | - Eugenia Trushina
- Department of Neurology, Mayo Clinic, Rochester, MN 55905, USA; Department of Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic, Rochester, MN 55905, USA.
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27
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Mitochondrial Dysfunction in Alzheimer’s Disease and Progress in Mitochondria-Targeted Therapeutics. Curr Behav Neurosci Rep 2019. [DOI: 10.1007/s40473-019-00179-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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SIRT1 activation by SRT1720 attenuates bone cancer pain via preventing Drp1-mediated mitochondrial fission. Biochim Biophys Acta Mol Basis Dis 2019; 1865:587-598. [DOI: 10.1016/j.bbadis.2018.12.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Revised: 11/29/2018] [Accepted: 12/18/2018] [Indexed: 01/25/2023]
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29
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Mitochondrial Dynamics in Stem Cells and Differentiation. Int J Mol Sci 2018; 19:ijms19123893. [PMID: 30563106 PMCID: PMC6321186 DOI: 10.3390/ijms19123893] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Revised: 12/03/2018] [Accepted: 12/04/2018] [Indexed: 01/09/2023] Open
Abstract
Mitochondria are highly dynamic organelles that continuously change their shape. Their main function is adenosine triphosphate (ATP) production; however, they are additionally involved in a variety of cellular phenomena, such as apoptosis, cell cycle, proliferation, differentiation, reprogramming, and aging. The change in mitochondrial morphology is closely related to the functionality of mitochondria. Normal mitochondrial dynamics are critical for cellular function, embryonic development, and tissue formation. Thus, defects in proteins involved in mitochondrial dynamics that control mitochondrial fusion and fission can affect cellular differentiation, proliferation, cellular reprogramming, and aging. Here, we review the processes and proteins involved in mitochondrial dynamics and their various associated cellular phenomena.
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30
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Qi Z, Huang Z, Xie F, Chen L. Dynamin-related protein 1: A critical protein in the pathogenesis of neural system dysfunctions and neurodegenerative diseases. J Cell Physiol 2018; 234:10032-10046. [PMID: 30515821 DOI: 10.1002/jcp.27866] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/14/2018] [Indexed: 02/06/2023]
Abstract
Mitochondria play a key role in the maintenance of neuronal function by continuously providing energy. Here, we will give a detailed review about the recent developments in regards to dynamin-related protein 1 (Drp1) induced unbalanced mitochondrial dynamics, excessive mitochondrial division, and neuronal injury in neural system dysfunctions and neurodegenerative diseases, including the Drp1 knockout induced mice embryonic death, the dysfunction of the Drp1-dependent mitochondrial division induced neuronal cell apoptosis and impaired neuronal axonal transportation, the abnormal interaction between Drp1 and amyloid β (Aβ) in Alzheimer's disease (AD), the mutant Huntingtin (Htt) in Huntington's disease (HD), and the Drp1-associated pathogenesis of other neurodegenerative diseases such as Parkinson's disease (PD) and amyotrophic lateral sclerosis (ALS). Drp1 is required for mitochondrial division determining the size, shape, distribution, and remodeling as well as maintaining of mitochondrial integrity in mammalian cells. In addition, increasing reports indicate that the Drp1 is involved in some cellular events of neuronal cells causing some neural system dysfunctions and neurodegenerative diseases, including impaired mitochondrial dynamics, apoptosis, and several posttranslational modification induced increased mitochondrial divisions. Recent studies also revealed that the Drp1 can interact with Aβ, phosphorylated τ, and mutant Htt affecting the mitochondrial shape, size, distribution, axonal transportation, and energy production in the AD and HD neuronal cells. These changes can affect the health of mitochondria and the function of synapses causing neuronal injury and eventually leading to the dysfunction of memory, cognitive impairment, resting tremor, posture instability, involuntary movements, and progressive muscle atrophy and paralysis in patients.
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Affiliation(s)
- Zhihao Qi
- Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
| | - Zhen Huang
- Department of Pharmacy, The First Affiliated Hospital, University of South China, Hengyang, China
| | - Feng Xie
- Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
| | - Linxi Chen
- Learning Key Laboratory for Pharmacoproteomics, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, Institute of Pharmacy and Pharmacology, University of South China, Hengyang, China
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31
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Zhu T, Chen JL, Wang Q, Shao W, Qi B. Modulation of Mitochondrial Dynamics in Neurodegenerative Diseases: An Insight Into Prion Diseases. Front Aging Neurosci 2018; 10:336. [PMID: 30455640 PMCID: PMC6230661 DOI: 10.3389/fnagi.2018.00336] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 10/05/2018] [Indexed: 12/13/2022] Open
Abstract
Mitochondrial dysfunction is a common and prominent feature of prion diseases and other neurodegenerative disorders. Mitochondria are dynamic organelles that constantly fuse with one another and subsequently break apart. Defective or superfluous mitochondria are usually eliminated by a form of autophagy, referred to as mitophagy, to maintain mitochondrial homeostasis. Mitochondrial dynamics are tightly regulated by processes including fusion and fission. Dysfunction of mitochondrial dynamics can lead to the accumulation of abnormal mitochondria and contribute to cellular damage. Neurons are among the cell types that consume the most energy, have a highly complex morphology, and are particularly dependent on mitochondrial functions and dynamics. In this review article, we summarize the molecular mechanisms underlying the mitochondrial dynamics and the regulation of mitophagy and discuss the dysfunction of these processes in the progression of prion diseases and other neurodegenerative disorders. We have also provided an overview of mitochondrial dynamics as a therapeutic target for neurodegenerative diseases.
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Affiliation(s)
- Ting Zhu
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Ji-Long Chen
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Qingsen Wang
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Wenhan Shao
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
| | - Baomin Qi
- Key Laboratory of Fujian-Taiwan Animal Pathogen Biology, College of Animal Sciences, Fujian Agriculture and Forestry University, Fuzhou, China
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32
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Hennings TG, Chopra DG, DeLeon ER, VanDeusen HR, Sesaki H, Merrins MJ, Ku GM. In Vivo Deletion of β-Cell Drp1 Impairs Insulin Secretion Without Affecting Islet Oxygen Consumption. Endocrinology 2018; 159:3245-3256. [PMID: 30052866 PMCID: PMC6107751 DOI: 10.1210/en.2018-00445] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Accepted: 07/16/2018] [Indexed: 01/17/2023]
Abstract
Mitochondria are dynamic organelles that undergo frequent fission and fusion events. Mitochondrial fission is required for ATP production, the tricarboxylic acid cycle, and processes beyond metabolism in a cell-type specific manner. Ex vivo and cell line studies have demonstrated that Drp1, a central regulator of mitochondrial fission, is required for glucose-stimulated insulin secretion (GSIS) in pancreatic β cells. Herein, we set out to interrogate the role of Drp1 in β-cell insulin secretion in vivo. We generated β-cell-specific Drp1 knockout (KO) mice (Drp1β-KO) by crossing a conditional allele of Drp1 to Ins1cre mice, in which Cre recombinase replaces the coding region of the Ins1 gene. Drp1β-KO mice were glucose intolerant due to impaired GSIS but did not progress to fasting hyperglycemia as adults. Despite markedly abnormal mitochondrial morphology, Drp1β-KO islets exhibited normal oxygen consumption rates and an unchanged glucose threshold for intracellular calcium mobilization. Instead, the most profound consequences of β-cell Drp1 deletion were impaired second-phase insulin secretion and impaired glucose-stimulated amplification of insulin secretion. Our data establish Drp1 as an important regulator of insulin secretion in vivo and demonstrate a role for Drp1 in metabolic amplification and calcium handling without affecting oxygen consumption.
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Affiliation(s)
- Thomas G Hennings
- Diabetes Center, University of California, San Francisco, San Francisco, California
- Biomedical Sciences Graduate Program, University of California, San Francisco, San Francisco, California
| | - Deeksha G Chopra
- Diabetes Center, University of California, San Francisco, San Francisco, California
| | - Elizabeth R DeLeon
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin
| | - Halena R VanDeusen
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Matthew J Merrins
- Department of Medicine, Division of Endocrinology, Diabetes and Metabolism, University of Wisconsin-Madison, Madison, Wisconsin
- William S. Middleton Memorial Veterans Hospital, Madison, Wisconsin
| | - Gregory M Ku
- Diabetes Center, University of California, San Francisco, San Francisco, California
- Department of Medicine, Division of Endocrinology and Metabolism, University of California, San Francisco, San Francisco, California
- Correspondence: Gregory M. Ku, MD, PhD, 513 Parnassus Avenue, HSW 1027, San Francisco, California 94143. E-mail:
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Cantó C. Mitochondrial Dynamics: Shaping Metabolic Adaptation. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 340:129-167. [PMID: 30072090 DOI: 10.1016/bs.ircmb.2018.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Despite their classic bean-shaped depiction, mitochondria have very different aspects in each cell type. From long filamentous structures to punctuated small round organelles. These shapes can dynamically change in response to nutrients and in situations of metabolic disease. However, why do mitochondria adapt different shapes and how is this determined? In this review, we will aim to understand different visions on how metabolic cues influence mitochondrial shape and vice-versa. This response can be dramatically different between tissues and cells, as illustrated by a large array of genetically engineered mouse models reported to date. We will use these models to understand the role of different mitochondrial dynamics-related proteins and processes.
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Affiliation(s)
- Carles Cantó
- Nestle Institute of Health Sciences NIHS, Lausanne, Switzerland; School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
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34
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Cid-Castro C, Hernández-Espinosa DR, Morán J. ROS as Regulators of Mitochondrial Dynamics in Neurons. Cell Mol Neurobiol 2018; 38:995-1007. [DOI: 10.1007/s10571-018-0584-7] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Accepted: 04/12/2018] [Indexed: 12/31/2022]
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35
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Wang W, Wang R, Zhang Q, Mor G, Zhang H. Benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide induces human trophoblast Swan 71 cell dysfunctions due to cell apoptosis through disorder of mitochondrial fission/fusion. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 233:820-832. [PMID: 29144987 DOI: 10.1016/j.envpol.2017.11.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2017] [Revised: 10/06/2017] [Accepted: 11/06/2017] [Indexed: 06/07/2023]
Abstract
Benzo(a)pyren-7,8-dihydrodiol-9,10-epoxide (BPDE) is an endocrine disrupter and ultimate carcinogenic product of benzo(a)pyrene (BaP). Numerous studies have shown that BPDE causes trophoblast-related diseases, such as preeclampsia, growth restriction or miscarriages. However, the underlying mechanism, especially the mitochondria-related BPDE-induced trophoblast dysfunction remains unknown. In this study, we examined mitochondrial functions in BPDE-induced human trophoblast cell line Swan 71. BPDE decreased cell ability, attenuated cell invasion and HCG secretion, induced cell apoptosis, decreased mitochondrial membrane potential, increased reactive oxygen species (ROS) and MDA, and decreased SOD activity in a dose-dependent manner. In the mechanism, BPDE significantly increased pro-apoptosis protein (P53 and Bak1) and decreased anti-apoptosis protein (Bcl-2). Furthermore, the protein expression levels of mitochondrial fusion genes (Mfn1, Mfn2, and OPA1) were decreased and those of fission genes (Fis1 and Drp1) were increased with increasing concentrations of BPDE and incubation time, resulting in the release of Cyt c and activation of Caspase 3, which irreversibly induced trophoblast cell apoptosis. This study reveals the mechanism of dysfunction of trophoblast cells through cell apoptosis due to the disorder of mitochondrial fission/fusion after exposure to BPDE, providing a further experimental understanding the adverse effects of BaP on trophoblast cells in early pregnancy.
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Affiliation(s)
- Weiping Wang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China
| | - Rong Wang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China
| | - Qiao Zhang
- Department of Toxicology, College of Public Health, Zhengzhou University, Zhengzhou, Henan, China
| | - Gil Mor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Reproductive Immunology Unit, Yale University School of Medicine, 333 Cedar Street LSOG 305A, New Haven, CT 06520, USA
| | - Huidong Zhang
- Public Health Laboratory Sciences and Toxicology, West China School of Public Health, Sichuan University, Chengdu, China.
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36
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DNM1L Variant Alters Baseline Mitochondrial Function and Response to Stress in a Patient with Severe Neurological Dysfunction. Biochem Genet 2017; 56:56-77. [PMID: 29110115 DOI: 10.1007/s10528-017-9829-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 10/18/2017] [Indexed: 10/18/2022]
Abstract
Mitochondria play vital roles in brain development and neuronal activity, and mitochondrial dynamics (fission and fusion) maintain organelle function through the removal of damaged components. Dynamin-like protein-1 (DRP-1), encoded by DNM1L, is an evolutionarily conserved GTPase that mediates mitochondrial fission by surrounding the scission site in concentric ring-like structures via self-oligomerization, followed by GTPase-dependant constriction. Here, we describe the clinical characteristics and cellular phenotype of a patient with severe neurological dysfunction, possessing a homozygous DNM1L variant c.305C>T (p.T115M) in the GTPase domain. For comparative analysis, we also describe a previously identified heterozygous variant demonstrating a rapidly fatal neurocognitive phenotype (c.261dup/c.385:386del, p.W88M*9/E129K*6). Using patient-generated fibroblasts, we demonstrated both DNM1L variants undergo adverse alterations to mitochondrial structure and function, including impaired mitochondrial fission, reduced membrane potential, and lower oxidative capacity including an increased cellular level of reactive oxygen species (ROS) and dsDNA breaks. Mutation of DNM1L was also associated with impaired responses to oxidative stress, as treatment with hydrogen peroxide dramatically increased cellular ROS, with minimal exacerbation of already impaired mitochondrial function. Taken together, our observations indicate that homozygous p.T115M variant of DNM1L produces a neurological and neurodevelopmental phenotype, consistent with impaired mitochondrial architecture and function, through a diminished ability to oligomerize, which was most prevalent under oxidative stress.
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Gerber S, Charif M, Chevrollier A, Chaumette T, Angebault C, Kane MS, Paris A, Alban J, Quiles M, Delettre C, Bonneau D, Procaccio V, Amati-Bonneau P, Reynier P, Leruez S, Calmon R, Boddaert N, Funalot B, Rio M, Bouccara D, Meunier I, Sesaki H, Kaplan J, Hamel CP, Rozet JM, Lenaers G. Mutations in DNM1L, as in OPA1, result in dominant optic atrophy despite opposite effects on mitochondrial fusion and fission. Brain 2017; 140:2586-2596. [PMID: 28969390 DOI: 10.1093/brain/awx219] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 07/08/2017] [Indexed: 12/24/2022] Open
Abstract
Dominant optic atrophy is a blinding disease due to the degeneration of the retinal ganglion cells, the axons of which form the optic nerves. In most cases, the disease is caused by mutations in OPA1, a gene encoding a mitochondrial large GTPase involved in cristae structure and mitochondrial network fusion. Using exome sequencing, we identified dominant mutations in DNM1L on chromosome 12p11.21 in three large families with isolated optic atrophy, including the two families that defined the OPA5 locus on chromosome 19q12.1-13.1, the existence of which is denied by the present study. Analyses of patient fibroblasts revealed physiological abundance and homo-polymerization of DNM1L, forming aggregates in the cytoplasm and on highly tubulated mitochondrial network, whereas neither structural difference of the peroxisome network, nor alteration of the respiratory machinery was noticed. Fluorescence microscopy of wild-type mouse retina disclosed a strong DNM1L expression in the ganglion cell layer and axons, and comparison between 3-month-old wild-type and Dnm1l+/- mice revealed increased mitochondrial length in retinal ganglion cell soma and axon, but no degeneration. Thus, our results disclose that in addition to OPA1, OPA3, MFN2, AFG3L2 and SPG7, dominant mutations in DNM1L jeopardize the integrity of the optic nerve, suggesting that alterations of the opposing forces governing mitochondrial fusion and fission, similarly affect retinal ganglion cell survival.
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Affiliation(s)
- Sylvie Gerber
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Majida Charif
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Arnaud Chevrollier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Tanguy Chaumette
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Claire Angebault
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Mariame Selma Kane
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Aurélien Paris
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Jennifer Alban
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Mélanie Quiles
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Cécile Delettre
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Dominique Bonneau
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Vincent Procaccio
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Patrizia Amati-Bonneau
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Pascal Reynier
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Stéphanie Leruez
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
| | - Raphael Calmon
- Department of Pediatric Neurology, IHU Necker Enfants Malades and Image at Imagine, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Nathalie Boddaert
- Department of Genetics, IHU Necker-Enfants Malades, University Paris Descartes, 75015 Paris, France; Department of Genetics, GHU Henri Mondor, 94010 Créteil, France
| | - Benoit Funalot
- Department of Genetics, IHU Necker-Enfants Malades, University Paris Descartes, 75015 Paris, France; Department of Genetics, GHU Henri Mondor, 94010 Créteil, France
| | - Marlène Rio
- Department of Genetics, IHU Necker-Enfants Malades, University Paris Descartes, 75015 Paris, France; Department of Genetics, GHU Henri Mondor, 94010 Créteil, France
| | - Didier Bouccara
- Service d'ORL, Hôpital Universitaire Pitié-Salpêtrière, 75013 Paris, France
| | - Isabelle Meunier
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Hiromi Sesaki
- Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Josseline Kaplan
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Christian P Hamel
- Institut des Neurosciences de Montpellier, INSERM U1051, Université de Montpellier, France
| | - Jean-Michel Rozet
- Laboratory of Genetics in Ophthalmology, INSERM UMR1163, Imagine - Institute of Genetic Diseases, Paris Descartes University, 75015 Paris, France
| | - Guy Lenaers
- MitoLab, Mitochondrial Medicine Research Centre, UMR CNRS 6015-INSERM 1083, Institut MitoVasc, University of Angers, 49933 Angers, France
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Bido S, Soria FN, Fan RZ, Bezard E, Tieu K. Mitochondrial division inhibitor-1 is neuroprotective in the A53T-α-synuclein rat model of Parkinson's disease. Sci Rep 2017; 7:7495. [PMID: 28790323 PMCID: PMC5548731 DOI: 10.1038/s41598-017-07181-0] [Citation(s) in RCA: 78] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 06/23/2017] [Indexed: 12/31/2022] Open
Abstract
Alpha-synuclein (α-syn) is involved in both familial and sporadic Parkinson’s disease (PD). One of the proposed pathogenic mechanisms of α-syn mutations is mitochondrial dysfunction. However, it is not entirely clear the impact of impaired mitochondrial dynamics induced by α-syn on neurodegeneration and whether targeting this pathway has therapeutic potential. In this study we evaluated whether inhibition of mitochondrial fission is neuroprotective against α-syn overexpression in vivo. To accomplish this goal, we overexpressed human A53T-α- synuclein (hA53T-α-syn) in the rat nigrostriatal pathway, with or without treatment using the small molecule Mitochondrial Division Inhibitor-1 (mdivi-1), a putative inhibitor of the mitochondrial fission Dynamin-Related Protein-1 (Drp1). We show here that mdivi-1 reduced neurodegeneration, α-syn aggregates and normalized motor function. Mechanistically, mdivi-1 reduced mitochondrial fragmentation, mitochondrial dysfunction and oxidative stress. These in vivo results support the negative role of mutant α-syn in mitochondrial function and indicate that mdivi-1 has a high therapeutic potential for PD.
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Affiliation(s)
- Simone Bido
- University of Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
| | - Federico N Soria
- University of Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France.,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France
| | - Rebecca Z Fan
- Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, United Kingdom.,Florida International University, Miami, Florida, USA
| | - Erwan Bezard
- University of Bordeaux, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France. .,CNRS, Institut des Maladies Neurodégénératives, UMR 5293, Bordeaux, France.
| | - Kim Tieu
- Plymouth University Peninsula Schools of Medicine and Dentistry, Plymouth, United Kingdom. .,Florida International University, Miami, Florida, USA.
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Rogers MA, Maldonado N, Hutcheson JD, Goettsch C, Goto S, Yamada I, Faits T, Sesaki H, Aikawa M, Aikawa E. Dynamin-Related Protein 1 Inhibition Attenuates Cardiovascular Calcification in the Presence of Oxidative Stress. Circ Res 2017; 121:220-233. [PMID: 28607103 DOI: 10.1161/circresaha.116.310293] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 06/02/2017] [Accepted: 06/09/2017] [Indexed: 12/23/2022]
Abstract
RATIONALE Mitochondrial changes occur during cell differentiation and cardiovascular disease. DRP1 (dynamin-related protein 1) is a key regulator of mitochondrial fission. We hypothesized that DRP1 plays a role in cardiovascular calcification, a process involving cell differentiation and a major clinical problem with high unmet needs. OBJECTIVE To examine the effects of osteogenic promoting conditions on DRP1 and whether DRP1 inhibition alters the development of cardiovascular calcification. METHODS AND RESULTS DRP1 was enriched in calcified regions of human carotid arteries, examined by immunohistochemistry. Osteogenic differentiation of primary human vascular smooth muscle cells increased DRP1 expression. DRP1 inhibition in human smooth muscle cells undergoing osteogenic differentiation attenuated matrix mineralization, cytoskeletal rearrangement, mitochondrial dysfunction, and reduced type 1 collagen secretion and alkaline phosphatase activity. DRP1 protein was observed in calcified human aortic valves, and DRP1 RNA interference reduced primary human valve interstitial cell calcification. Mice heterozygous for Drp1 deletion did not exhibit altered vascular pathology in a proprotein convertase subtilisin/kexin type 9 gain-of-function atherosclerosis model. However, when mineralization was induced via oxidative stress, DRP1 inhibition attenuated mouse and human smooth muscle cell calcification. Femur bone density was unchanged in mice heterozygous for Drp1 deletion, and DRP1 inhibition attenuated oxidative stress-mediated dysfunction in human bone osteoblasts. CONCLUSIONS We demonstrate a new function of DRP1 in regulating collagen secretion and cardiovascular calcification, a novel area of exploration for the potential development of new therapies to modify cellular fibrocalcific response in cardiovascular diseases. Our data also support a role of mitochondrial dynamics in regulating oxidative stress-mediated arterial calcium accrual and bone loss.
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Affiliation(s)
- Maximillian A Rogers
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Natalia Maldonado
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Joshua D Hutcheson
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Claudia Goettsch
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Shinji Goto
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Iwao Yamada
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Tyler Faits
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Hiromi Sesaki
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Masanori Aikawa
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.)
| | - Elena Aikawa
- From the Center for Interdisciplinary Cardiovascular Sciences (M.A.R., N.M., J.D.H., C.G., S.G., I.Y., T.F., M.A., E.A.) and Center for Excellence in Vascular Biology (M.A., E.A.), Division of Cardiovascular Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, MA; and Department of Cell Biology, Johns Hopkins University School of Medicine, Baltimore, MD (H.S.).
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Ong SB, Kalkhoran SB, Hernández-Reséndiz S, Samangouei P, Ong SG, Hausenloy DJ. Mitochondrial-Shaping Proteins in Cardiac Health and Disease - the Long and the Short of It! Cardiovasc Drugs Ther 2017; 31:87-107. [PMID: 28190190 PMCID: PMC5346600 DOI: 10.1007/s10557-016-6710-1] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Mitochondrial health is critically dependent on the ability of mitochondria to undergo changes in mitochondrial morphology, a process which is regulated by mitochondrial shaping proteins. Mitochondria undergo fission to generate fragmented discrete organelles, a process which is mediated by the mitochondrial fission proteins (Drp1, hFIS1, Mff and MiD49/51), and is required for cell division, and to remove damaged mitochondria by mitophagy. Mitochondria undergo fusion to form elongated interconnected networks, a process which is orchestrated by the mitochondrial fusion proteins (Mfn1, Mfn2 and OPA1), and which enables the replenishment of damaged mitochondrial DNA. In the adult heart, mitochondria are relatively static, are constrained in their movement, and are characteristically arranged into 3 distinct subpopulations based on their locality and function (subsarcolemmal, myofibrillar, and perinuclear). Although the mitochondria are arranged differently, emerging data supports a role for the mitochondrial shaping proteins in cardiac health and disease. Interestingly, in the adult heart, it appears that the pleiotropic effects of the mitochondrial fusion proteins, Mfn2 (endoplasmic reticulum-tethering, mitophagy) and OPA1 (cristae remodeling, regulation of apoptosis, and energy production) may play more important roles than their pro-fusion effects. In this review article, we provide an overview of the mitochondrial fusion and fission proteins in the adult heart, and highlight their roles as novel therapeutic targets for treating cardiac disease.
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Affiliation(s)
- Sang-Bing Ong
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore.,National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Siavash Beikoghli Kalkhoran
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College London, London, UK
| | - Sauri Hernández-Reséndiz
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore.,National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore
| | - Parisa Samangouei
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College London, London, UK
| | - Sang-Ging Ong
- Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Derek John Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore Medical School, 8 College Road, Singapore, 169857, Singapore. .,National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore, Singapore. .,The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College London, London, UK. .,The National Institute of Health Research, University College London Hospitals Biomedical Research Centre, London, UK.
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41
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Kandimalla R, Manczak M, Fry D, Suneetha Y, Sesaki H, Reddy PH. Reduced dynamin-related protein 1 protects against phosphorylated Tau-induced mitochondrial dysfunction and synaptic damage in Alzheimer's disease. Hum Mol Genet 2016; 25:4881-4897. [PMID: 28173111 PMCID: PMC6078590 DOI: 10.1093/hmg/ddw312] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Revised: 08/31/2016] [Accepted: 09/02/2016] [Indexed: 11/13/2022] Open
Abstract
The purpose of our study was to understand the protective effects of a partial reduction of dynamin-related protein 1 (Drp1) in Alzheimer’s disease (AD) progression and pathogenesis. Increasing evidence suggests that phosphorylated Tau and mitochondrial abnormalities are involved in the loss of synapses, defective axonal transport and cognitive decline, in patients with AD. In the current study, we investigated whether a partial reduction of Drp1 protect neurons from phosphorylated Tau-induced mitochondrial and synaptic toxicities in AD progression. We crossed Drp1+/− mice with Tau transgenic mice (P301L line) and created double mutant (TauXDrp1+/−) mice. Using real-time RT-PCR, immunoblotting and immunostaining analyses, we measured mRNA expressions and protein levels of genes related to the mitochondrial dynamics—Drp1 and Fis1 (fission), Mfn1, Mfn2 and Opa1 (fusion), CypD (matrix), mitochondrial biogenesis—Nrf1, Nrf2, PGC1α and TFAM and synaptic—synaptophysin, PSD95, synapsin 1, synaptobrevin 1, neurogranin, GAP43 and synaptopodin in brain tissues from 6-month-old Drp1+/−, Tau, TauXDrp1+/− and wild-type mice. Using biochemical and immunoblotting methods, mitochondrial function and phosphorylated Tau were measured. Decreased mRNA and protein levels of fission and matrix and increased levels of fusion, mitochondrial biogenesis, and synaptic genes were found in 6-month-old TauXDrp1+/− mice relative to Tau mice. Mitochondrial dysfunction was reduced in TauXDrp1+/− mice relative to Tau mice. Phosphorylated Tau found to be reduced in TauXDrp1+/− mice relative to Tau mice. These findings suggest that a partial reduction of Drp1 decreases the production of phosphorylated Tau, reduces mitochondrial dysfunction, and maintains mitochondrial dynamics, enhances mitochondrial biogenesis and synaptic activity in Tau mice. Findings of this study may have implications for the development of Drp1 based therapeutics for patients with AD and other tauopathies.
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Affiliation(s)
- Ramesh Kandimalla
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - Maria Manczak
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - David Fry
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - Yeguvapalli Suneetha
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
| | - Hiromi Sesaki
- Cell Biology Department, Johns Hopkins University School of Medicine, 725 N. Wolfe Street, 109 Hunterian, Baltimore, MD 21205, USA
| | - P. Hemachandra Reddy
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
- Cell Biology & Biochemistry Department
- Neuroscience & Pharmacology Department
- Neurology Department
- Speech, Language and Hearing Sciences Departments, Texas Tech University Health Sciences Center, 3601 4th Street, MS 9424, Lubbock, TX 79430, USA
- Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, 6630 S. Quaker Suite E, MS 7495, Lubbock, TX 79413, USA
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Zaha K, Matsumoto H, Itoh M, Saitsu H, Kato K, Kato M, Ogata S, Murayama K, Kishita Y, Mizuno Y, Kohda M, Nishino I, Ohtake A, Okazaki Y, Matsumoto N, Nonoyama S. DNM1L-related encephalopathy in infancy with Leigh syndrome-like phenotype and suppression-burst. Clin Genet 2016; 90:472-474. [PMID: 27301544 DOI: 10.1111/cge.12805] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/13/2016] [Accepted: 05/13/2016] [Indexed: 11/30/2022]
Affiliation(s)
- K Zaha
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - H Matsumoto
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan.
| | - M Itoh
- Department of Mental Retardation and Birth Defect Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan.
| | - H Saitsu
- Department of human genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - K Kato
- Department of Laboratory Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - M Kato
- Department of Pediatrics, Yamagata University Faculty of Medicine, Yamagata, Yamagata, Japan
| | - S Ogata
- Department of Laboratory Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan
| | - K Murayama
- Department of Metabolism, Chiba Children's Hospital, Chiba, Japan
| | - Y Kishita
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - Y Mizuno
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan.,Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - M Kohda
- Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - I Nishino
- Department of Neuromuscular Research, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - A Ohtake
- Department of Pediatrics, Saitama Medical University, Saitama, Japan
| | - Y Okazaki
- Division of Functional Genomics & Systems Medicine, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan.,Division of Translational Research, Research Center for Genomic Medicine, Saitama Medical University, Saitama, Japan
| | - N Matsumoto
- Department of human genetics, Yokohama City University Graduate School of Medicine, Yokohama, Kanagawa, Japan
| | - S Nonoyama
- Department of Pediatrics, National Defense Medical College, Tokorozawa, Saitama, Japan
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43
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Fields JA, Serger E, Campos S, Divakaruni AS, Kim C, Smith K, Trejo M, Adame A, Spencer B, Rockenstein E, Murphy AN, Ellis RJ, Letendre S, Grant I, Masliah E. HIV alters neuronal mitochondrial fission/fusion in the brain during HIV-associated neurocognitive disorders. Neurobiol Dis 2016; 86:154-69. [PMID: 26611103 PMCID: PMC4713337 DOI: 10.1016/j.nbd.2015.11.015] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 11/16/2015] [Accepted: 11/18/2015] [Indexed: 11/23/2022] Open
Abstract
HIV-associated neurocognitive disorders (HAND) still occur in approximately 50% of HIV patients, and therapies to combat HAND progression are urgently needed. HIV proteins are released from infected cells and cause neuronal damage, possibly through mitochondrial abnormalities. Altered mitochondrial fission and fusion is implicated in several neurodegenerative disorders. Here, we hypothesized that mitochondrial fission/fusion may be dysregulated in neurons during HAND. We have identified decreased mitochondrial fission protein (dynamin 1-like; DNM1L) in frontal cortex tissues of HAND donors, along with enlarged and elongated mitochondria localized to the soma of damaged neurons. Similar pathology was observed in the brains of GFAP-gp120 tg mice. In vitro, recombinant gp120 decreased total and active DNM1L levels, reduced the level of Mitotracker staining, and increased extracellular acidification rate (ECAR) in primary neurons. DNM1L knockdown enhanced the effects of gp120 as measured by reduced Mitotracker signal in the treated cells. Interestingly, overexpression of DNM1L increased the level of Mitotracker staining in primary rat neurons and reduced neuroinflammation and neurodegeneration in the GFAP-gp120-tg mice. These data suggest that mitochondrial biogenesis dynamics are shifted towards mitochondrial fusion in brains of HAND patients and this may be due to gp120-induced reduction in DNM1L activity. Promoting mitochondrial fission during HIV infection of the CNS may restore mitochondrial biogenesis and prevent neurodegeneration.
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Affiliation(s)
- Jerel Adam Fields
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Elisabeth Serger
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Sofia Campos
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Ajit S Divakaruni
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
| | - Changyoun Kim
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Kendall Smith
- Department of Pathology, University of California San Diego, La Jolla, CA, USA
| | - Margarita Trejo
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Anthony Adame
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Brian Spencer
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Edward Rockenstein
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Anne N Murphy
- Department of Pharmacology, University of California San Diego, La Jolla, CA, USA
| | - Ronald J Ellis
- Department of Neurosciences, University of California San Diego, La Jolla, CA, USA
| | - Scott Letendre
- Department of Medicine, University of California San Diego, La Jolla, CA, USA
| | - Igor Grant
- Department of Psychiatry, University of California San Diego, La Jolla, CA, USA
| | - Eliezer Masliah
- Department of Pathology, University of California San Diego, La Jolla, CA, USA; Department of Neurosciences, University of California San Diego, La Jolla, CA, USA.
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44
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Kandimalla R, Reddy PH. Multiple faces of dynamin-related protein 1 and its role in Alzheimer's disease pathogenesis. Biochim Biophys Acta Mol Basis Dis 2015; 1862:814-828. [PMID: 26708942 DOI: 10.1016/j.bbadis.2015.12.018] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/08/2015] [Accepted: 12/15/2015] [Indexed: 01/01/2023]
Abstract
Mitochondria play a large role in neuronal function by constantly providing energy, particularly at synapses. Recent studies suggest that amyloid beta (Aβ) and phosphorylated tau interact with the mitochondrial fission protein, dynamin-related protein 1 (Drp1), causing excessive fragmentation of mitochondria and leading to abnormal mitochondrial dynamics and synaptic degeneration in Alzheimer's disease (AD) neurons. Recent research also revealed Aβ-induced and phosphorylated tau-induced changes in mitochondria, particularly affecting mitochondrial shape, size, distribution and axonal transport in AD neurons. These changes affect mitochondrial health and, in turn, could affect synaptic function and neuronal damage and ultimately leading to memory loss and cognitive impairment in patients with AD. This article highlights recent findings in the role of Drp1 in AD pathogenesis. This article also highlights Drp1 and its relationships to glycogen synthase kinase 3, cyclin-dependent kinase 5, p53, and microRNAs in AD pathogenesis.
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Affiliation(s)
- Ramesh Kandimalla
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4(th) Street, MS 9424, Lubbock, TX 79430, United States
| | - P Hemachandra Reddy
- Garrison Institute on Aging, Texas Tech University Health Sciences Center, 3601 4(th) Street, MS 9424, Lubbock, TX 79430, United States; Cell Biology & Biochemistry, Texas Tech University Health Sciences Center, 3601 4(th) Street, MS 9424, Lubbock, TX 79430, United States; Department of Neuroscience & Pharmacology, Texas Tech University Health Sciences Center, 3601 4(th) Street, MS 9424, Lubbock, TX 79430, United States; Department of Neurology, Texas Tech University Health Sciences Center, 3601 4(th) Street, MS 9424, Lubbock, TX 79430, United States; Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, 6630 S. Quaker Ste. E, MS 7495, Lubbock, TX 79413, United States.
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45
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Ong SB, Kalkhoran SB, Cabrera-Fuentes HA, Hausenloy DJ. Mitochondrial fusion and fission proteins as novel therapeutic targets for treating cardiovascular disease. Eur J Pharmacol 2015; 763:104-14. [PMID: 25987420 PMCID: PMC4784719 DOI: 10.1016/j.ejphar.2015.04.056] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2015] [Revised: 03/28/2015] [Accepted: 04/09/2015] [Indexed: 12/11/2022]
Abstract
The past decade has witnessed a number of exciting developments in the field of mitochondrial dynamics - a phenomenon in which changes in mitochondrial shape and movement impact on cellular physiology and pathology. By undergoing fusion and fission, mitochondria are able to change their morphology between elongated interconnected networks and discrete fragmented structures, respectively. The cardiac mitochondria, in particular, have garnered much interest due to their unique spatial arrangement in the adult cardiomyocyte, and the multiple roles they play in cell death and survival. In this article, we review the role of the mitochondrial fusion and fission proteins as novel therapeutic targets for treating cardiovascular disease.
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Affiliation(s)
- Sang-Bing Ong
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Department of Clinical Sciences, Faculty of Biosciences and Medical Engineering, Universiti Teknologi Malaysia, Johor Bahru, Malaysia
| | | | - Hector A Cabrera-Fuentes
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; Institute of Biochemistry, Medical School, Justus-Liebig University, Giessen, Germany; Department of Microbiology, Kazan Federal University, Kazan, Russian Federation
| | - Derek J Hausenloy
- Cardiovascular and Metabolic Disorders Program, Duke-National University of Singapore, Singapore; National Heart Research Institute Singapore, National Heart Centre Singapore, Singapore; The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, University College London, UK; The National Institute of Health Research University College London Hospitals Biomedical Research Centre, UK.
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46
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Jheng HF, Huang SH, Kuo HM, Hughes MW, Tsai YS. Molecular insight and pharmacological approaches targeting mitochondrial dynamics in skeletal muscle during obesity. Ann N Y Acad Sci 2015; 1350:82-94. [PMID: 26301786 DOI: 10.1111/nyas.12863] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Obesity-associated insulin resistance is the major characteristic of the early stage of metabolic syndrome. A decline in mitochondrial function plays a role in the development of insulin resistance in obesity and type 2 diabetes. Accumulating data reveal that mitochondrial dynamics, the balance between mitochondrial fusion and fission, are an important factor in the maintenance of mitochondrial function. Thus, the mechanisms underlying the regulation of mitochondrial dynamics in obesity deserve further investigation. This review describes an overview of mitochondrial fusion and fission machineries, and discusses the mechanistic and functional aspects of mitochondrial dynamics, with a focus on skeletal muscle in obesity. Finally, we discuss current pharmacological approaches of targeting mitochondrial dynamics. Elucidating the role of mitochondrial dynamics in skeletal muscle afflicted by obesity may provide not only important clues in understanding muscle insulin resistance, but also new therapeutic targets.
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Affiliation(s)
| | | | | | - Michael W Hughes
- Institute of Clinical Medicine.,International Research Center of Wound Repair and Regeneration
| | - Yau-Sheng Tsai
- Institute of Clinical Medicine.,Research Center of Clinical Medicine, National Cheng Kung University Hospital, Tainan, Taiwan, Republic of China
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47
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Iommarini L, Peralta S, Torraco A, Diaz F. Mitochondrial Diseases Part II: Mouse models of OXPHOS deficiencies caused by defects in regulatory factors and other components required for mitochondrial function. Mitochondrion 2015; 22:96-118. [PMID: 25640959 DOI: 10.1016/j.mito.2015.01.008] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Accepted: 01/22/2015] [Indexed: 01/21/2023]
Abstract
Mitochondrial disorders are defined as defects that affect the oxidative phosphorylation system (OXPHOS). They are characterized by a heterogeneous array of clinical presentations due in part to a wide variety of factors required for proper function of the components of the OXPHOS system. There is no cure for these disorders owing to our poor knowledge of the pathogenic mechanisms of disease. To understand the mechanisms of human disease numerous mouse models have been developed in recent years. Here we summarize the features of several mouse models of mitochondrial diseases directly related to those factors affecting mtDNA maintenance, replication, transcription, translation as well as other proteins that are involved in mitochondrial dynamics and quality control which affect mitochondrial OXPHOS function without being intrinsic components of the system. We discuss how these models have contributed to our understanding of mitochondrial diseases and their pathogenic mechanisms.
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Affiliation(s)
- Luisa Iommarini
- Department of Pharmacy and Biotechnology (FABIT), University of Bologna, Via Irnerio 42, 40128 Bologna, Italy.
| | - Susana Peralta
- Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL 33136, USA.
| | - Alessandra Torraco
- Unit for Neuromuscular and Neurodegenerative Disorders, Laboratory of Molecular Medicine, Bambino Gesù Children's Hospital, IRCCS, Viale di San Paolo, 15 - 00146, Rome, Italy.
| | - Francisca Diaz
- Department of Neurology, University of Miami, Miller School of Medicine, Miami, FL 33136, USA.
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48
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Reddy PH. Inhibitors of mitochondrial fission as a therapeutic strategy for diseases with oxidative stress and mitochondrial dysfunction. J Alzheimers Dis 2015; 40:245-56. [PMID: 24413616 DOI: 10.3233/jad-132060] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Mitochondria are essential cytoplasmic organelles, critical for cell survival and death. Recent mitochondrial research revealed that mitochondrial dynamics-the balance of fission and fusion in normal mitochondrial dynamics--is an important cellular mechanism in eukaryotic cell and is involved in the maintenance of mitochondrial morphology, structure, number, distribution, and function. Research into mitochondria and cell function has revealed that mitochondrial dynamics is impaired in a large number of aging and neurodegenerative diseases, and in several inherited mitochondrial diseases, and that this impairment involves excessive mitochondrial fission, resulting in mitochondrial structural changes and dysfunction, and cell damage. Attempts have been made to develop molecules to reduce mitochondrial fission while maintaining normal mitochondrial fusion and function in those diseases that involve excessive mitochondrial fission. This review article discusses mechanisms of mitochondrial fission in normal and diseased states of mammalian cells and discusses research aimed at developing therapies, such as Mdivi, Dynasore and P110, to prevent or to inhibit excessive mitochondrial fission.
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Affiliation(s)
- P Hemachandra Reddy
- Neurogenetics Laboratory, Division of Neuroscience, Oregon National Primate Research Center, Oregon Health & Science University, Beaverton, OR, USA Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR, USA
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49
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Hall AR, Burke N, Dongworth RK, Hausenloy DJ. Mitochondrial fusion and fission proteins: novel therapeutic targets for combating cardiovascular disease. Br J Pharmacol 2014; 171:1890-906. [PMID: 24328763 PMCID: PMC3976611 DOI: 10.1111/bph.12516] [Citation(s) in RCA: 186] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 10/21/2013] [Accepted: 10/28/2013] [Indexed: 12/18/2022] Open
Abstract
Mitochondria are no longer considered to be solely the static powerhouses of the cell. While they are undoubtedly essential to sustaining life and meeting the energy requirements of the cell through oxidative phosphorylation, they are now regarded as highly dynamic organelles with multiple functions, playing key roles in cell survival and death. In this review, we discuss the emerging role of mitochondrial fusion and fission proteins, as novel therapeutic targets for treating a wide range of cardiovascular diseases.
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Affiliation(s)
- A R Hall
- The Hatter Cardiovascular Institute, Institute of Cardiovascular Science, NIHR University College London Hospitals Biomedical Research Centre, University College London Hospital & Medical School, London, UK
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50
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Sesaki H, Adachi Y, Kageyama Y, Itoh K, Iijima M. In vivo functions of Drp1: lessons learned from yeast genetics and mouse knockouts. Biochim Biophys Acta Mol Basis Dis 2013; 1842:1179-85. [PMID: 24326103 DOI: 10.1016/j.bbadis.2013.11.024] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/25/2013] [Accepted: 11/27/2013] [Indexed: 01/19/2023]
Abstract
Mitochondria grow, divide, and fuse in cells. Mitochondrial division is critical for the maintenance of the structure and function of mitochondria. Alterations in this process have been linked to many human diseases, including peripheral neuropathies and aging-related neurological disorders. In this review, we discuss recent progress in mitochondrial division by focusing on molecular and in vivo analyses of the evolutionarily conserved, central component of mitochondrial division, dynamin-related protein 1 (Drp1), in the yeast and mouse model organisms.
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Affiliation(s)
- Hiromi Sesaki
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Yoshihiro Adachi
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Yusuke Kageyama
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Kie Itoh
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Miho Iijima
- Department of Cell Biology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
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