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Hao S, Huang H, Ma RY, Zeng X, Duan CY. Multifaceted functions of Drp1 in hypoxia/ischemia-induced mitochondrial quality imbalance: from regulatory mechanism to targeted therapeutic strategy. Mil Med Res 2023; 10:46. [PMID: 37833768 PMCID: PMC10571487 DOI: 10.1186/s40779-023-00482-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 09/21/2023] [Indexed: 10/15/2023] Open
Abstract
Hypoxic-ischemic injury is a common pathological dysfunction in clinical settings. Mitochondria are sensitive organelles that are readily damaged following ischemia and hypoxia. Dynamin-related protein 1 (Drp1) regulates mitochondrial quality and cellular functions via its oligomeric changes and multiple modifications, which plays a role in mediating the induction of multiple organ damage during hypoxic-ischemic injury. However, there is active controversy and gaps in knowledge regarding the modification, protein interaction, and functions of Drp1, which both hinder and promote development of Drp1 as a novel therapeutic target. Here, we summarize recent findings on the oligomeric changes, modification types, and protein interactions of Drp1 in various hypoxic-ischemic diseases, as well as the Drp1-mediated regulation of mitochondrial quality and cell functions following ischemia and hypoxia. Additionally, potential clinical translation prospects for targeting Drp1 are discussed. This review provides new ideas and targets for proactive interventions on multiple organ damage induced by various hypoxic-ischemic diseases.
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Affiliation(s)
- Shuai Hao
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Research Institute of General Surgery, Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210002 China
| | - He Huang
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
| | - Rui-Yan Ma
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Department of Cardiovascular Surgery, Xinqiao Hospital, Army Medical University, Chongqing, 400037 China
| | - Xue Zeng
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
- Institute for Brain Science and Disease, Chongqing Medical University, Chongqing, 400010 China
| | - Chen-Yang Duan
- Department of Anesthesiology, the Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010 China
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Srinivasan S, Dharmarajan V, Reed DK, Griffin PR, Schmid SL. Identification and function of conformational dynamics in the multidomain GTPase dynamin. EMBO J 2016; 35:443-57. [PMID: 26783363 DOI: 10.15252/embj.201593477] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 12/11/2015] [Indexed: 01/13/2023] Open
Abstract
Vesicle release upon endocytosis requires membrane fission, catalyzed by the large GTPase dynamin. Dynamin contains five domains that together orchestrate its mechanochemical activity. Hydrogen-deuterium exchange coupled with mass spectrometry revealed global nucleotide- and membrane-binding-dependent conformational changes, as well as the existence of an allosteric relay element in the α2(S) helix of the dynamin stalk domain. As predicted from structural studies, FRET analyses detect large movements of the pleckstrin homology domain (PHD) from a 'closed' conformation docked near the stalk to an 'open' conformation able to interact with membranes. We engineered dynamin constructs locked in either the closed or open state by chemical cross-linking or deletion mutagenesis and showed that PHD movements function as a conformational switch to regulate dynamin self-assembly, membrane binding, and fission. This PHD conformational switch is impaired by a centronuclear myopathy-causing disease mutation, S619L, highlighting the physiological significance of its role in regulating dynamin function. Together, these data provide new insight into coordinated conformational changes that regulate dynamin function and couple membrane binding, oligomerization, and GTPase activity during dynamin-catalyzed membrane fission.
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Affiliation(s)
| | | | - Dana Kim Reed
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, USA
| | - Patrick R Griffin
- Department of Molecular Therapeutics, The Scripps Research Institute, Jupiter, FL, USA
| | - Sandra L Schmid
- Department of Cell Biology, UT Southwestern Medical Center, Dallas, TX, USA
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Sambuughin N, Goldfarb LG, Sivtseva TM, Davydova TK, Vladimirtsev VA, Osakovskiy VL, Danilova AP, Nikitina RS, Ylakhova AN, Diachkovskaya MP, Sundborger AC, Renwick NM, Platonov FA, Hinshaw JE, Toro C. Adult-onset autosomal dominant spastic paraplegia linked to a GTPase-effector domain mutation of dynamin 2. BMC Neurol 2015; 15:223. [PMID: 26517984 PMCID: PMC4628244 DOI: 10.1186/s12883-015-0481-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Accepted: 10/25/2015] [Indexed: 11/20/2022] Open
Abstract
Background Hereditary Spastic Paraplegia (HSP) represents a large group of clinically and genetically heterogeneous disorders linked to over 70 different loci and more than 60 recognized disease-causing genes. A heightened vulnerability to disruption of various cellular processes inherent to the unique function and morphology of corticospinal neurons may account, at least in part, for the genetic heterogeneity. Methods Whole exome sequencing was utilized to identify candidate genetic variants in a four-generation Siberian kindred that includes nine individuals showing clinical features of HSP. Segregation of candidate variants within the family yielded a disease-associated mutation. Functional as well as in-silico structural analyses confirmed the selected candidate variant to be causative. Results Nine known patients had young-adult onset of bilateral slowly progressive lower-limb spasticity, weakness and hyperreflexia progressing over two-to-three decades to wheel-chair dependency. In the advanced stage of the disease, some patients also had distal wasting of lower leg muscles, pes cavus, mildly decreased vibratory sense in the ankles, and urinary urgency along with electrophysiological evidence of a mild distal motor/sensory axonopathy. Molecular analyses uncovered a missense c.2155C > T, p.R719W mutation in the highly conserved GTP-effector domain of dynamin 2. The mutant DNM2 co-segregated with HSP and affected endocytosis when expressed in HeLa cells. In-silico modeling indicated that this HSP-associated dynamin 2 mutation is located in a highly conserved bundle-signaling element of the protein while dynamin 2 mutations associated with other disorders are located in the stalk and PH domains; p.R719W potentially disrupts dynamin 2 assembly. Conclusion This is the first report linking a mutation in dynamin 2 to a HSP phenotype. Dynamin 2 mutations have previously been associated with other phenotypes including two forms of Charcot-Marie-Tooth neuropathy and centronuclear myopathy. These strikingly different pathogenic effects may depend on structural relationships the mutations disrupt. Awareness of this distinct association between HSP and c.2155C > T, p.R719W mutation will facilitate ascertainment of additional DNM2 HSP families and will direct future research toward better understanding of cell biological processes involved in these partly overlapping clinical syndromes.
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Affiliation(s)
- Nyamkhishig Sambuughin
- Consortium for Health and Military Performance, Uniformed Services University, Bethesda, MD, 20814, USA.
| | - Lev G Goldfarb
- National Institute of Neurological Disorders and Stroke, National Institute of Health, Bethesda, MD, 20892, USA.
| | - Tatiana M Sivtseva
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Tatiana K Davydova
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Vsevolod A Vladimirtsev
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Vladimir L Osakovskiy
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Al'bina P Danilova
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Raisa S Nikitina
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Anastasia N Ylakhova
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Margarita P Diachkovskaya
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Anna C Sundborger
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Fishers Lane, Room 4S26, Bethesda, MD, 20892, USA.
| | - Neil M Renwick
- Department of Pathology and Molecular Medicine, Queen's University, Kingston General Hospital, Kingston, ON, K7L 3N6, Canada.
| | - Fyodor A Platonov
- Institute of Health, M.K. Ammosov North-Eastern Federal University, Sergelyakhskoe shosse 4 km, building C-2, Yakutsk, 677010, The Russian Federation.
| | - Jenny E Hinshaw
- National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Fishers Lane, Room 4S26, Bethesda, MD, 20892, USA.
| | - Camilo Toro
- National Human Genome Research Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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Reubold TF, Faelber K, Plattner N, Posor Y, Ketel K, Curth U, Schlegel J, Anand R, Manstein DJ, Noé F, Haucke V, Daumke O, Eschenburg S. Crystal structure of the dynamin tetramer. Nature 2015; 525:404-8. [PMID: 26302298 DOI: 10.1038/nature14880] [Citation(s) in RCA: 93] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 08/03/2015] [Indexed: 12/21/2022]
Abstract
The mechanochemical protein dynamin is the prototype of the dynamin superfamily of large GTPases, which shape and remodel membranes in diverse cellular processes. Dynamin forms predominantly tetramers in the cytosol, which oligomerize at the neck of clathrin-coated vesicles to mediate constriction and subsequent scission of the membrane. Previous studies have described the architecture of dynamin dimers, but the molecular determinants for dynamin assembly and its regulation have remained unclear. Here we present the crystal structure of the human dynamin tetramer in the nucleotide-free state. Combining structural data with mutational studies, oligomerization measurements and Markov state models of molecular dynamics simulations, we suggest a mechanism by which oligomerization of dynamin is linked to the release of intramolecular autoinhibitory interactions. We elucidate how mutations that interfere with tetramer formation and autoinhibition can lead to the congenital muscle disorders Charcot-Marie-Tooth neuropathy and centronuclear myopathy, respectively. Notably, the bent shape of the tetramer explains how dynamin assembles into a right-handed helical oligomer of defined diameter, which has direct implications for its function in membrane constriction.
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Affiliation(s)
- Thomas F Reubold
- Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Katja Faelber
- Max-Delbrück-Centrum für Molekulare Medizin, Kristallographie, Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Nuria Plattner
- Institut für Mathematik, Freie Universität Berlin, Arnimallee 6, 14195 Berlin, Germany
| | - York Posor
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Katharina Ketel
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Ute Curth
- Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.,Forschungseinrichtung Strukturanalyse, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Jeanette Schlegel
- Max-Delbrück-Centrum für Molekulare Medizin, Kristallographie, Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Roopsee Anand
- Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Dietmar J Manstein
- Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany.,Forschungseinrichtung Strukturanalyse, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - Frank Noé
- Institut für Mathematik, Freie Universität Berlin, Arnimallee 6, 14195 Berlin, Germany
| | - Volker Haucke
- Leibniz-Institut für Molekulare Pharmakologie, Robert-Rössle-Straße 10, 13125 Berlin, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 6, 14195 Berlin, Germany
| | - Oliver Daumke
- Max-Delbrück-Centrum für Molekulare Medizin, Kristallographie, Robert-Rössle-Straße 10, 13125 Berlin, Germany.,Institut für Chemie und Biochemie, Freie Universität Berlin, Takustraße 6, 14195 Berlin, Germany
| | - Susanne Eschenburg
- Institut für Biophysikalische Chemie, Medizinische Hochschule Hannover, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
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