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Ottensmeyer J, Esch A, Baeta H, Sieger S, Gupta Y, Rathmann MF, Jeschke A, Jacko D, Schaaf K, Schiffer T, Rahimi B, Lövenich L, Sisto A, van der Ven PFM, Fürst DO, Haas A, Bloch W, Gehlert S, Hoffmann B, Timmerman V, Huesgen PF, Höhfeld J. Force-induced dephosphorylation activates the cochaperone BAG3 to coordinate protein homeostasis and membrane traffic. Curr Biol 2024; 34:4170-4183.e9. [PMID: 39181128 DOI: 10.1016/j.cub.2024.07.088] [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: 01/31/2024] [Revised: 06/13/2024] [Accepted: 07/26/2024] [Indexed: 08/27/2024]
Abstract
Proteome maintenance in contracting skeletal and cardiac muscles depends on the chaperone-regulating protein BAG3. Reduced BAG3 activity leads to muscle weakness and heart failure in animal models and patients. BAG3 and its chaperone partners recognize mechanically damaged muscle proteins and initiate their disposal through chaperone-assisted selective autophagy (CASA). However, molecular details of the force-dependent regulation of BAG3 have remained elusive so far. Here, we demonstrate that mechanical stress triggers the dephosphorylation of BAG3 in human muscle and in isolated cells. We identify force-regulated phospho-switches in BAG3 that control CASA complex assembly and CASA activity. Differential proteomics reveal RAB GTPases, which organize membrane traffic and fusion, as dephosphorylation-dependent interactors of BAG3. In fact, RAB7A and RAB11B are shown here to be essential for CASA in skeletal muscle cells. Moreover, BAG3 dephosphorylation is also observed upon induction of mitophagy, suggesting an involvement of the cochaperone in the RAB7A-dependent autophagic engulfment of damaged mitochondria in exercised muscle. Cooperation of BAG3 with RAB7A relies on a direct interaction of both proteins, which is regulated by the nucleotide state of the GTPase and by association with the autophagosome membrane protein LC3B. Finally, we provide evidence that BAG3 and RAB7A also cooperate in non-muscle cells and propose that overactivation of CASA in RAB7A-L129F patients contributes to the loss of peripheral neurons in Charcot-Marie-Tooth neuropathy.
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Affiliation(s)
- Judith Ottensmeyer
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Alessandra Esch
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Henrique Baeta
- Institute for Biology II, University of Freiburg, Schänzlestraße 1, 79104 Freiburg, Germany
| | - Sandro Sieger
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Yamini Gupta
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Maximilian F Rathmann
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Andreas Jeschke
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Daniel Jacko
- Institute of Cardiovascular Research and Sports Medicine, German Sport University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Kirill Schaaf
- Institute of Cardiovascular Research and Sports Medicine, German Sport University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Thorsten Schiffer
- Outpatient Clinic for Sports Traumatology, German Sport University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Bahareh Rahimi
- Institute of Biological Information Processing, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Lukas Lövenich
- Institute of Biological Information Processing, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Angela Sisto
- Peripheral Neuropathy Research Group, Department of Biomedical Sciences, Institute Born Bunge and University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Peter F M van der Ven
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Dieter O Fürst
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Albert Haas
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany
| | - Wilhelm Bloch
- Institute of Cardiovascular Research and Sports Medicine, German Sport University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany
| | - Sebastian Gehlert
- Institute of Cardiovascular Research and Sports Medicine, German Sport University, Am Sportpark Müngersdorf 6, 50933 Cologne, Germany; Institute of Sport Science, University of Hildesheim, Universitätsplatz 1, 31139 Hildesheim, Germany
| | - Bernd Hoffmann
- Institute of Biological Information Processing, Forschungszentrum Jülich, Wilhelm-Johnen-Straße, 52428 Jülich, Germany
| | - Vincent Timmerman
- Peripheral Neuropathy Research Group, Department of Biomedical Sciences, Institute Born Bunge and University of Antwerp, Universiteitsplein 1, 2610 Antwerp, Belgium
| | - Pitter F Huesgen
- Institute for Biology II, University of Freiburg, Schänzlestraße 1, 79104 Freiburg, Germany; CIBSS - Centre for Integrative Biological Signaling Studies, University of Freiburg, Schänzlestr. 18, 79104 Freiburg, Germany
| | - Jörg Höhfeld
- Institute for Cell Biology, University of Bonn, Ulrich-Haberland-Str. 61a, 53121 Bonn, Germany.
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2
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Rotimi DE, Iyobhebhe M, Oluwayemi ET, Evbuomwan IO, Asaleye RM, Ojo OA, Adeyemi OS. Mitophagy and spermatogenesis: Role and mechanisms. Biochem Biophys Rep 2024; 38:101698. [PMID: 38577271 PMCID: PMC10990862 DOI: 10.1016/j.bbrep.2024.101698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2024] [Revised: 03/25/2024] [Accepted: 03/26/2024] [Indexed: 04/06/2024] Open
Abstract
The mitophagy process, a type of macroautophagy, is the targeted removal of mitochondria. It is a type of autophagy exclusive to mitochondria, as the process removes defective mitochondria one by one. Mitophagy serves as an additional level of quality control by using autophagy to remove superfluous mitochondria or mitochondria that are irreparably damaged. During spermatogenesis, mitophagy can influence cell homeostasis and participates in a variety of membrane trafficking activities. Crucially, it has been demonstrated that defective mitophagy can impede spermatogenesis. Despite an increasing amount of evidence suggesting that mitophagy and mitochondrial dynamics preserve the fundamental level of cellular homeostasis, little is known about their role in developmentally controlled metabolic transitions and differentiation. It has been observed that male infertility is a result of mitophagy's impact on sperm motility. Furthermore, certain proteins related to autophagy have been shown to be present in mammalian spermatozoa. The mitochondria are the only organelle in sperm that can produce reactive oxygen species and finally provide energy for sperm movement. Furthermore, studies have shown that inhibited autophagy-infected spermatozoa had reduced motility and increased amounts of phosphorylated PINK1, TOM20, caspase 3/7, and AMPK. Therefore, in terms of reproductive physiology, mitophagy is the removal of mitochondria derived from sperm and the following preservation of mitochondria that are exclusively maternal.
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Affiliation(s)
- Damilare Emmanuel Rotimi
- Department of Biochemistry, Landmark University, Omu-Aran 251101, Kwara State, Nigeria
- SDG 3, Good Health & Well-being, Landmark University, Nigeria
| | - Matthew Iyobhebhe
- Department of Biochemistry, Landmark University, Omu-Aran 251101, Kwara State, Nigeria
- SDG 3, Good Health & Well-being, Landmark University, Nigeria
| | - Elizabeth Temidayo Oluwayemi
- Department of Biochemistry, Landmark University, Omu-Aran 251101, Kwara State, Nigeria
- SDG 3, Good Health & Well-being, Landmark University, Nigeria
| | | | - Rotdelmwa Maimako Asaleye
- Department of Biochemistry, Landmark University, Omu-Aran 251101, Kwara State, Nigeria
- SDG 3, Good Health & Well-being, Landmark University, Nigeria
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3
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Liu BH, Xu CZ, Liu Y, Lu ZL, Fu TL, Li GR, Deng Y, Luo GQ, Ding S, Li N, Geng Q. Mitochondrial quality control in human health and disease. Mil Med Res 2024; 11:32. [PMID: 38812059 PMCID: PMC11134732 DOI: 10.1186/s40779-024-00536-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Accepted: 05/07/2024] [Indexed: 05/31/2024] Open
Abstract
Mitochondria, the most crucial energy-generating organelles in eukaryotic cells, play a pivotal role in regulating energy metabolism. However, their significance extends beyond this, as they are also indispensable in vital life processes such as cell proliferation, differentiation, immune responses, and redox balance. In response to various physiological signals or external stimuli, a sophisticated mitochondrial quality control (MQC) mechanism has evolved, encompassing key processes like mitochondrial biogenesis, mitochondrial dynamics, and mitophagy, which have garnered increasing attention from researchers to unveil their specific molecular mechanisms. In this review, we present a comprehensive summary of the primary mechanisms and functions of key regulators involved in major components of MQC. Furthermore, the critical physiological functions regulated by MQC and its diverse roles in the progression of various systemic diseases have been described in detail. We also discuss agonists or antagonists targeting MQC, aiming to explore potential therapeutic and research prospects by enhancing MQC to stabilize mitochondrial function.
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Affiliation(s)
- Bo-Hao Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
- Department of Thoracic Surgery, First Hospital of Jilin University, Changchun, 130021, China
| | - Chen-Zhen Xu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi Liu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Zi-Long Lu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ting-Lv Fu
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Rui Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yu Deng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Guo-Qing Luo
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Song Ding
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Ning Li
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Qing Geng
- Department of Thoracic Surgery, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Ali R, Almousa R, Aly SM, Saleh SM. Nanoscale potassium sensing based on valinomycin-anchored fluorescent gold nanoclusters. Mikrochim Acta 2024; 191:299. [PMID: 38709371 DOI: 10.1007/s00604-024-06392-3] [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: 03/15/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
Gold nanoclusters are a smart platform for sensing potassium ions (K+). They have been synthesized using bovine serum albumin (BSA) and valinomycin (Val) to protect and cap the nanoclusters. The nanoclusters (Val-AuNCs) produced have a red emission at 616 nm under excitation with 470 nm. In the presence of K+, the valinomycin polar groups switch to the molecule's interior by complexing with K+, forming a bracelet structure, and being surrounded by the hydrophobic exterior conformation. This structure allows a proposed fluorometric method for detecting K+ by switching between the Val-AuNCs' hydrophilicity and hydrophobicity, which induces the aggregation of gold nanoclusters. As a result, significant quenching is seen in fluorescence after adding K+. The quenching in fluorescence in the presence of K+ is attributed to the aggregation mechanism. This sensing technique provides a highly precise and selective sensing method for K+ in the range 0.78 to 8 µM with LOD equal to 233 nM. The selectivity of Val-AuNCs toward K+ ions was investigated compared to other ions. Furthermore, the Val-AuNCs have novel possibilities as favorable sensor candidates for various imaging applications. Our detection technique was validated by determining K+ ions in postmortem vitreous humor samples, which yielded promising results.
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Affiliation(s)
- Reham Ali
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia.
- Chemistry Department, Faculty of Science, Suez University, Suez, 43518, Egypt.
| | - Reem Almousa
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia
| | - Sanaa M Aly
- Department of Forensic Medicine & Clinical Toxicology, Faculty of Medicine, Suez Canal University, Ismailia, 41522, Egypt
| | - Sayed M Saleh
- Department of Chemistry, College of Science, Qassim University, 52571, Buraidah, Saudi Arabia
- Department of Petroleum Refining and Petrochemical Engineering Department, Faculty of Petroleum and Mining Engineering, Suez University, Suez, 43721, Egypt
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5
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Ribeiro R, Costa L, Pinto E, Sousa E, Fernandes C. Therapeutic Potential of Marine-Derived Cyclic Peptides as Antiparasitic Agents. Mar Drugs 2023; 21:609. [PMID: 38132930 PMCID: PMC10745025 DOI: 10.3390/md21120609] [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: 11/02/2023] [Revised: 11/18/2023] [Accepted: 11/23/2023] [Indexed: 12/23/2023] Open
Abstract
Parasitic diseases still compromise human health. Some of the currently available therapeutic drugs have limitations considering their adverse effects, questionable efficacy, and long treatment, which have encouraged drug resistance. There is an urgent need to find new, safe, effective, and affordable antiparasitic drugs. Marine-derived cyclic peptides have been increasingly screened as candidates for developing new drugs. Therefore, in this review, a systematic analysis of the scientific literature was performed and 25 marine-derived cyclic peptides with antiparasitic activity (1-25) were found. Antimalarial activity is the most reported (51%), followed by antileishmanial (27%) and antitrypanosomal (20%) activities. Some compounds showed promising antiparasitic activity at the nM scale, being active against various parasites. The mechanisms of action and targets for some of the compounds have been investigated, revealing different strategies against parasites.
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Affiliation(s)
- Ricardo Ribeiro
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Lia Costa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
| | - Eugénia Pinto
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
- Laboratório de Microbiologia, Departamento de Ciências Biológicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Emília Sousa
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
| | - Carla Fernandes
- Laboratório de Química Orgânica e Farmacêutica, Departamento de Ciências Químicas, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal; (R.R.); (L.C.); (E.S.)
- Interdisciplinary Centre of Marine and Environmental Research (CIIMAR), Edifício do Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos s/n, 4050-208 Matosinhos, Portugal;
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6
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Ma Q, Xin J, Peng Q, Li N, Sun S, Hou H, Ma G, Wang N, Zhang L, Tam KY, Dussmann H, Prehn JHM, Wang H, Ying Z. UBQLN2 and HSP70 participate in Parkin-mediated mitophagy by facilitating outer mitochondrial membrane rupture. EMBO Rep 2023; 24:e55859. [PMID: 37501540 PMCID: PMC10481660 DOI: 10.15252/embr.202255859] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 07/04/2023] [Accepted: 07/11/2023] [Indexed: 07/29/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD) are two aging-related neurodegenerative diseases that share common key features, including aggregation of pathogenic proteins, dysfunction of mitochondria, and impairment of autophagy. Mutations in ubiquilin 2 (UBQLN2), a shuttle protein in the ubiquitin-proteasome system (UPS), can cause ALS/FTD, but the mechanism underlying UBQLN2-mediated pathogenesis is still uncertain. Recent studies indicate that mitophagy, a selective form of autophagy which is crucial for mitochondrial quality control, is tightly associated with neurodegenerative diseases including Alzheimer's disease, Parkinson's disease, and ALS. In this study, we show that after Parkin-dependent ubiquitination of damaged mitochondria, UBQLN2 is recruited to poly-ubiquitinated mitochondria through the UBA domain. UBQLN2 cooperates with the chaperone HSP70 to promote UPS-driven degradation of outer mitochondrial membrane (OMM) proteins. The resulting rupture of the OMM triggers the autophagosomal recognition of the inner mitochondrial membrane receptor PHB2. UBQLN2 is required for Parkin-mediated mitophagy and neuronal survival upon mitochondrial damage, and the ALS/FTD pathogenic mutations in UBQLN2 impair mitophagy in primary cultured neurons. Taken together, our findings link dysfunctional mitophagy to UBQLN2-mediated neurodegeneration.
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Affiliation(s)
- Qilian Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
- Department of Physiology & Medical Physics and FUTURE‐NEURO Research CentreRoyal College of Surgeons in IrelandDublinIreland
| | - Jiaqi Xin
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Qiang Peng
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Ningning Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Shan Sun
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
- Faculty of Health SciencesUniversity of MacauMacauChina
| | - Hongyu Hou
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Guoqiang Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Nana Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Li Zhang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear MedicineJiangsu Institute of Nuclear MedicineWuxiChina
| | - Kin Yip Tam
- Faculty of Health SciencesUniversity of MacauMacauChina
| | - Heiko Dussmann
- Department of Physiology & Medical Physics and FUTURE‐NEURO Research CentreRoyal College of Surgeons in IrelandDublinIreland
| | - Jochen HM Prehn
- Department of Physiology & Medical Physics and FUTURE‐NEURO Research CentreRoyal College of Surgeons in IrelandDublinIreland
| | - Hongfeng Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
| | - Zheng Ying
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical SciencesSoochow UniversitySuzhouChina
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Quarato G, Mari L, Barrows NJ, Yang M, Ruehl S, Chen MJ, Guy CS, Low J, Chen T, Green DR. Mitophagy restricts BAX/BAK-independent, Parkin-mediated apoptosis. SCIENCE ADVANCES 2023; 9:eadg8156. [PMID: 37224250 PMCID: PMC10208567 DOI: 10.1126/sciadv.adg8156] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 04/18/2023] [Indexed: 05/26/2023]
Abstract
Degradation of defective mitochondria is an essential process to maintain cellular homeostasis and it is strictly regulated by the ubiquitin-proteasome system (UPS) and lysosomal activities. Here, using genome-wide CRISPR and small interference RNA screens, we identified a critical contribution of the lysosomal system in controlling aberrant induction of apoptosis following mitochondrial damage. After treatment with mitochondrial toxins, activation of the PINK1-Parkin axis triggered a BAX- and BAK-independent process of cytochrome c release from mitochondria followed by APAF1 and caspase 9-dependent apoptosis. This phenomenon was mediated by UPS-dependent outer mitochondrial membrane (OMM) degradation and was reversed using proteasome inhibitors. We found that the subsequent recruitment of the autophagy machinery to the OMM protected cells from apoptosis, mediating the lysosomal degradation of dysfunctional mitochondria. Our results underscore a major role of the autophagy machinery in counteracting aberrant noncanonical apoptosis and identified autophagy receptors as key elements in the regulation of this process.
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Affiliation(s)
- Giovanni Quarato
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Luigi Mari
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Nicholas J. Barrows
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Mao Yang
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Sebastian Ruehl
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Mark J. Chen
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Cliff S. Guy
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Jonathan Low
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Taosheng Chen
- Department of Chemical Biology and Therapeutics, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
| | - Douglas R. Green
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, TN 38105, USA
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Xin Y, Zhao L, Peng R. HIF-1 signaling: an emerging mechanism for mitochondrial dynamics. J Physiol Biochem 2023:10.1007/s13105-023-00966-0. [PMID: 37178248 DOI: 10.1007/s13105-023-00966-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 05/02/2023] [Indexed: 05/15/2023]
Abstract
A growing emphasis has been paid to the function of mitochondria in tumors, neurodegenerative disorders (NDs), and cardiovascular diseases. Mitochondria are oxygen-sensitive organelles whose function depends on their structural basis. Mitochondrial dynamics are critical in regulating the structure. Mitochondrial dynamics include fission, fusion, motility, cristae remodeling, and mitophagy. These processes could alter mitochondrial morphology, number, as well as distribution, to regulate complicated cellular signaling processes like metabolism. Meanwhile, they also could modulate cell proliferation and apoptosis. The initiation and progression of several diseases, such as tumors, NDs, cardiovascular disease, were all interrelated with mitochondrial dynamics. HIF-1 is a nuclear protein presented as heterodimers, and its transcriptional activity is triggered by hypoxia. It plays an important role in numerous physiological processes including the development of cardiovascular system, immune system, and cartilage. Additionally, it could evoke compensatory responses in cells during hypoxia through upstream and downstream signaling networks. Moreover, the alteration of oxygen level is a pivotal factor to promote mitochondrial dynamics and HIF-1 activation. HIF-1α might be a promising target for modulating mitochondrial dynamics to develop therapeutic approaches for NDs, immunological diseases, and other related diseases. Here, we reviewed the research progress of mitochondrial dynamics and the potential regulatory mechanism of HIF-1 in mitochondrial dynamics.
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Affiliation(s)
- Yu Xin
- Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China
| | - Li Zhao
- Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China.
| | - Ruiyun Peng
- Beijing Institute of Radiation Medicine, Beijing, 100850, People's Republic of China.
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9
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Rybarski M, Mrohs D, Osenberg K, Hemmersbach M, Pfeffel K, Steinkamp J, Schmidt D, Violou K, Schäning R, Schmidtke K, Bader V, Andriske M, Bohne P, Mark MD, Winklhofer KF, Lübbert H, Zhu XR. Loss of parkin causes endoplasmic reticulum calcium dyshomeostasis by upregulation of reticulocalbin 1. Eur J Neurosci 2023; 57:739-761. [PMID: 36656174 DOI: 10.1111/ejn.15917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 01/10/2023] [Accepted: 01/14/2023] [Indexed: 01/20/2023]
Abstract
Increasing evidence suggests that astrocytes play an important role in the progression of Parkinson's disease (PD). Previous studies on our parkin knockout mouse demonstrated a higher accumulation of damaged mitochondria in astrocytes than in surrounding dopaminergic (DA) neurons, suggesting that Parkin plays a crucial role regarding their interaction during PD pathogenesis. In the current study, we examined primary mesencephalic astrocytes and neurons in a direct co-culture system and discovered that the parkin deletion causes an impaired differentiation of mesencephalic neurons. This effect required the parkin mutation in astrocytes as well as in neurons. In Valinomycin-treated parkin-deficient astrocytes, ubiquitination of Mitofusin 2 was abolished, whereas there was no significant degradation of the outer mitochondrial membrane protein Tom70. This result may explain the accumulation of damaged mitochondria in parkin-deficient astrocytes. We examined differential gene expression in the substantia nigra region of our parkin-KO mouse by RNA sequencing and identified an upregulation of the endoplasmic reticulum (ER) Ca2+ -binding protein reticulocalbin 1 (RCN1) expression, which was validated using qPCR. Immunostaining of the SN brain region revealed RCN1 expression mainly in astrocytes. Our subcellular fractionation of brain extract has shown that RCN1 is located in the ER and in mitochondria-associated membranes (MAM). Moreover, a loss of Parkin function reduced ATP-stimulated calcium-release in ER mesencephalic astrocytes that could be attenuated by siRNA-mediated RCN1 knockdown. Our results indicate that RCN1 plays an important role in ER-associated calcium dyshomeostasis caused by the loss of Parkin function in mesencephalic astrocytes, thereby highlighting the relevance of astrocyte function in PD pathomechanisms.
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Affiliation(s)
- Max Rybarski
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany.,Department of Behavioral Neuroscience, Ruh University Bochum, Bochum, Germany
| | - David Mrohs
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Katharina Osenberg
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany.,Biofrontera Pharmaceuticals AG, Leverkusen, Germany
| | - Maren Hemmersbach
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Katharina Pfeffel
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Joy Steinkamp
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - David Schmidt
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Karina Violou
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Ruth Schäning
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Katja Schmidtke
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany.,Department of Behavioral Neuroscience, Ruh University Bochum, Bochum, Germany
| | - Verian Bader
- Department of Molecular Cell Biology, Institute of Biochemistry and Pathobiochemistry, Ruhr University Bochum, Bochum, Germany
| | - Michael Andriske
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany
| | - Pauline Bohne
- Department of Behavioral Neuroscience, Ruh University Bochum, Bochum, Germany
| | - Melanie D Mark
- Department of Behavioral Neuroscience, Ruh University Bochum, Bochum, Germany
| | - Konstanze F Winklhofer
- Department of Molecular Cell Biology, Institute of Biochemistry and Pathobiochemistry, Ruhr University Bochum, Bochum, Germany
| | - Hermann Lübbert
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany.,Biofrontera Pharmaceuticals AG, Leverkusen, Germany
| | - Xin-Ran Zhu
- Department of Animal Physiology, Ruhr University Bochum, Bochum, Germany.,Department of Behavioral Neuroscience, Ruh University Bochum, Bochum, Germany
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10
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Zhang SN, Li HM, Liu Q, Li XZ, Yang WD, Zhou Y. Omics combined with network pharmacology reveal the neuroprotective mechanism of Sophora tonkinensis based on the biolabel research pattern: The treatment of Parkinson's disease against oxidative stress and neuroexcitatory toxicity. Biomed Chromatogr 2023; 37:e5557. [PMID: 36453605 DOI: 10.1002/bmc.5557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2022] [Revised: 11/19/2022] [Accepted: 11/26/2022] [Indexed: 12/04/2022]
Abstract
Based on the biolabel research pattern, omics and network pharmacology were used for exploring the neuroprotection of Sophora tonkinensis (ST) in the treatment of brain diseases. Multi-omics were applied to investigate biolabels for ST intervention in brain tissue. Based on biolabels, the therapeutic potential, mechanism and material basis of ST for treating brain diseases were topologically analyzed by network pharmacology. A Parkinson's disease (PD) mouse model was used to validate biolabel analysis results. Four proteins and three metabolites were involved in two key pathways (alanine, aspartate and glutamate metabolism and arginine biosynthesis) and considered as biolabels. Network pharmacology showed that ST has the potential to treat some brain diseases, especially PD. Eight compounds (including caffeic acid, gallic acid and cinnamic acid) may serve as the material basis of ST treating brain diseases via the mediation of three biolabels. In the PD model, ST and its active compounds (caffeic acid and gallic acid) may protect dopaminergic neurons (maximum recovery rate for dopamine, 49.5%) from oxidative stress (E3 ubiquitin-protein ligase parkin, reactive oxygen species, nitric oxide, etc.) and neuroexcitatory toxicity (glutamate dehydrogenase, glutamine, glutamic acid, etc.). These findings indicated that omics and network pharmacology may contribute to the achievement of the objectives of this study based on the biolabel research pattern.
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Affiliation(s)
- Shuai-Nan Zhang
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Hong-Mei Li
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Qi Liu
- The Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
| | - Xu-Zhao Li
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Wu-de Yang
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
| | - Ying Zhou
- College of Pharmacy, Guizhou University of Traditional Chinese Medicine, China
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11
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Tang X, Guo Y, Zhang S, Wang X, Teng Y, Jin Q, Jin Q, Shen W, Wang R. Solanine Represses Gastric Cancer Growth by Mediating Autophagy Through AAMDC/MYC/ATF4/Sesn2 Signaling Pathway. Drug Des Devel Ther 2023; 17:389-402. [PMID: 36789094 PMCID: PMC9922515 DOI: 10.2147/dddt.s389764] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 01/31/2023] [Indexed: 02/10/2023] Open
Abstract
Purpose Solanine is the main component of the plant Solanum, which has been shown to provide growth-limiting activities in a variety of human cancers. However, little is known about its function in gastric cancer (GC). Methods We investigated the effect of solanine on GC in vivo and in vitro. The inhibition rate of solanine on the tumor was observed by constructing a subcutaneous tumor in nude mice. Morphological changes were analyzed with H&E staining. The expression of ATF4 was detected by IF analysis. MTT assays, EdU staining, and colony formation assays were used to detect the inhibition rate of solanine on GC cells. Matrigel transwells were used to detect the invasion of GC cells. Cell migration was measured using the wound healing assay. The flow cytometric analysis was used to monitor changes in the cell cycle and cell apoptosis. Western blotting was used to detect major proteins in cells and tumors. Results Solanine suppressed gastric tumorigenesis. Solanine also inhibited the proliferation, invasion and mitigation of GC cells, and induced cell cycle arrest and apoptosis in vitro. Moreover, the growth-limiting activities of solanine in gastric cancer were related to the suppression of the AAMDC/MYC/ATF4/Sesn2 pathway-mediated autophagy. Overexpression of AAMDC reversed the inhibitory effect of solanine on autophagy and gastric cancer. Conclusion In summary, our findings indicate that solanine confers growth-limiting activities by deactivating the AAMDC-regulated autophagy in gastric cancer.
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Affiliation(s)
- Xiaolong Tang
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People’s Republic of China,Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - YingYing Guo
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - Sijia Zhang
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - Xin Wang
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - Yuhao Teng
- Department of Oncology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People’s Republic of China
| | - Qingjiang Jin
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - Qinglei Jin
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China
| | - Wei Shen
- Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, Suzhou, Jiangsu, People’s Republic of China,Correspondence: Wei Shen, Department of Oncology, Suzhou Hospital of Integrated Traditional Chinese and Western Medicine, 39 Xiashatang Road, Wuzhong District, Suzhou, Jiangsu, People’s Republic of China, Email
| | - Ruiping Wang
- The First Clinical Medical College, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People’s Republic of China,Department of Oncology, the Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu, People’s Republic of China,Ruiping Wang, Department of Oncology, the Affiliated Hospital of Nanjing University of Chinese Medicine, 155 Hanzhong Road, Qinhuai District, Nanjing, Jiangsu, People’s Republic of China, Tel +13815883181, Email
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12
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Deng Y, Tu Y, Yang X, Liao X, Xia Z, Liao W. Anti-atherosclerosis effect of nobiletin via PINK1/Parkin-mediated mitophagy and NLRP3 inflammasome signaling pathway. J Funct Foods 2023. [DOI: 10.1016/j.jff.2022.105369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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13
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Wang Q, Adil MZ, Xie X, Zhao S, Zhang J, Huang Z. Therapeutic targeting of mitochondria–proteostasis axis by antioxidant polysaccharides in neurodegeneration. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2023. [PMID: 37437985 DOI: 10.1016/bs.apcsb.2023.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/28/2023]
Abstract
Aging is a major risk factor for many age-associated disorders, including neurodegenerative diseases. Both mitochondrial dysfunction and proteostatic decline are well-recognized hallmarks of aging and age-related neurodegeneration. Despite a lack of therapies for neurodegenerative diseases, a number of interventions promoting mitochondrial integrity and protein homeostasis (proteostasis) have been shown to delay aging-associated neurodegeneration. For example, many antioxidant polysaccharides are shown to have pharmacological potentials in Alzheimer's, Parkinson's and Huntington's diseases through regulation of mitochondrial and proteostatic pathways, including oxidative stress and heat shock responses. However, how mitochondrial and proteostatic mechanisms work together to exert the antineurodegenerative effect of the polysaccharides remains largely unexplored. Interestingly, recent studies have provided a growing body of evidence to support the crosstalk between mitostatic and proteostatic networks as well as the impact of the crosstalk on neurodegeneration. Here we summarize the recent progress of antineurodegenerative polysaccharides with particular attention in the mitochondrial and proteostatic context and provide perspectives on their implications in the crosstalk along the mitochondria-proteostasis axis.
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14
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Sun S, Hou H, Ma G, Ma Q, Li N, Zhang L, Dong C, Cao M, Tam KY, Ying Z, Wang H. The interaction between E3 ubiquitin ligase Parkin and mitophagy receptor PHB2 links inner mitochondrial membrane ubiquitination to efficient mitophagy. J Biol Chem 2022; 298:102704. [PMID: 36379251 PMCID: PMC9763867 DOI: 10.1016/j.jbc.2022.102704] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/22/2022] [Accepted: 10/26/2022] [Indexed: 11/15/2022] Open
Abstract
The autophagic clearance of mitochondria has been defined as mitophagy, which is triggered by mitochondrial damage and serves as a major pathway for mitochondrial homeostasis and cellular quality control. PINK1 and Parkin-mediated mitophagy is the most extensively studied form of mitophagy, which has been linked to the pathogenesis of neurodegenerative disorders, including Alzheimer's disease, Parkinson's disease, and amyotrophic lateral sclerosis. The current paradigm of this particular mitophagy pathway is that the ubiquitination of the outer mitochondrial membrane is the key step to enable the recognition of damaged mitochondria by the core autophagic component autophagosome. However, whether the inner mitochondrial membrane (IMM) is ubiquitinated by Parkin and its contribution to sufficient mitophagy remain unclear. Here, using molecular, cellular, and biochemical approaches, we report that prohibitin 2 (PHB2), an essential IMM receptor for mitophagy, is ubiquitinated by Parkin and thereby gains higher affinity to the autophagosome during mitophagy. Our findings suggest that Parkin directly binds to PHB2 through its RING1 domain and promotes K11- and K33-linked ubiquitination on K142/K200 sites of PHB2, thereby enhancing the interaction between PHB2 and MAP1LC3B/LC3B. Interestingly and importantly, our study allows us to propose a novel model in which IMM protein PHB2 serves as both a receptor and a ubiquitin-mediated base for autophagosome recruitment to ensure efficient mitophagy.
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Affiliation(s)
- Shan Sun
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China.; Faculty of Health Sciences, University of Macau, Taipa, Macau, China
| | - Hongyu Hou
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Guoqiang Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Qilian Ma
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Ningning Li
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China
| | - Li Zhang
- Key Laboratory of Nuclear Medicine, Ministry of Health, Jiangsu Key Laboratory of Molecular Nuclear Medicine, Jiangsu Institute of Nuclear Medicine, Wuxi, Jiangsu, China
| | - Chunsheng Dong
- Insititutes of Biology and Medical Science, Soochow University, Suzhou, Jiangsu, China
| | - Mian Cao
- Programme in Neuroscience and Behavioural Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Kin Yip Tam
- Faculty of Health Sciences, University of Macau, Taipa, Macau, China.
| | - Zheng Ying
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China..
| | - Hongfeng Wang
- Jiangsu Key Laboratory of Neuropsychiatric Diseases and College of Pharmaceutical Sciences, Soochow University, Suzhou, Jiangsu, China..
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15
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A degradative to secretory autophagy switch mediates mitochondria clearance in the absence of the mATG8-conjugation machinery. Nat Commun 2022; 13:3720. [PMID: 35764633 PMCID: PMC9240011 DOI: 10.1038/s41467-022-31213-7] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 06/08/2022] [Indexed: 12/19/2022] Open
Abstract
PINK1-Parkin mediated mitophagy, a selective form of autophagy, represents one of the most important mechanisms in mitochondrial quality control (MQC) via the clearance of damaged mitochondria. Although it is well known that the conjugation of mammalian ATG8s (mATG8s) to phosphatidylethanolamine (PE) is a key step in autophagy, its role in mitophagy remains controversial. In this study, we clarify the role of the mATG8-conjugation system in mitophagy by generating knockouts of the mATG8-conjugation machinery. Unexpectedly, we show that mitochondria could still be cleared in the absence of the mATG8-conjugation system, in a process independent of lysosomal degradation. Instead, mitochondria are cleared via extracellular release through a secretory autophagy pathway, in a process we define as Autophagic Secretion of Mitochondria (ASM). Functionally, increased ASM promotes the activation of the innate immune cGAS-STING pathway in recipient cells. Overall, this study reveals ASM as a mechanism in MQC when the cellular mATG8-conjugation machinery is dysfunctional and highlights the critical role of mATG8 lipidation in suppressing inflammatory responses. The mechanisms underlying mitochondrial quality control are not fully understood. Here the authors identify a switch from degradative to secretory autophagy in the absence of the mATG8-conjugation system, termed Autophagic Secretion of Mitochondria.
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16
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Li YC, Wang Y, Zou W. Exploration on the Mechanism of Ubiquitin Proteasome System in Cerebral Stroke. Front Aging Neurosci 2022; 14:814463. [PMID: 35462700 PMCID: PMC9022456 DOI: 10.3389/fnagi.2022.814463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 03/14/2022] [Indexed: 12/23/2022] Open
Abstract
Stroke’s secondary damage, such as inflammation, oxidative stress, and mitochondrial dysfunction, are thought to be crucial factors in the disease’s progression. Despite the fact that there are numerous treatments for secondary damage following stroke, such as antiplatelet therapy, anticoagulant therapy, surgery, and so on, the results are disappointing and the side effects are numerous. It is critical to develop novel and effective strategies for improving patient prognosis. The ubiquitin proteasome system (UPS) is the hub for the processing and metabolism of a wide range of functional regulatory proteins in cells. It is critical for the maintenance of cell homeostasis. With the advancement of UPS research in recent years, it has been discovered that UPS is engaged in a variety of physiological and pathological processes in the human body. UPS is expected to play a role in the onset and progression of stroke via multiple targets and pathways. This paper explores the method by which UPS participates in the linked pathogenic process following stroke, in order to give a theoretical foundation for further research into UPS and stroke treatment.
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Affiliation(s)
- Yu-Chao Li
- Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yan Wang
- School of Traditional Chinese Medicine, Ningxia Medical University, Yinchuan, China
| | - Wei Zou
- Heilongjiang University of Chinese Medicine, Harbin, China
- First Affiliated Hospital, Heilongjiang University of Chinese Medicine, Harbin, China
- *Correspondence: Wei Zou,
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17
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Berdowska I, Matusiewicz M, Krzystek-Korpacka M. HDL Accessory Proteins in Parkinson’s Disease—Focusing on Clusterin (Apolipoprotein J) in Regard to Its Involvement in Pathology and Diagnostics—A Review. Antioxidants (Basel) 2022; 11:antiox11030524. [PMID: 35326174 PMCID: PMC8944556 DOI: 10.3390/antiox11030524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/01/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Parkinson’s disease (PD)—a neurodegenerative disorder (NDD) characterized by progressive destruction of dopaminergic neurons within the substantia nigra of the brain—is associated with the formation of Lewy bodies containing mainly α-synuclein. HDL-related proteins such as paraoxonase 1 and apolipoproteins A1, E, D, and J are implicated in NDDs, including PD. Apolipoprotein J (ApoJ, clusterin) is a ubiquitous, multifunctional protein; besides its engagement in lipid transport, it modulates a variety of other processes such as immune system functionality and cellular death signaling. Furthermore, being an extracellular chaperone, ApoJ interacts with proteins associated with NDD pathogenesis (amyloid β, tau, and α-synuclein), thus modulating their properties. In this review, the association of clusterin with PD is delineated, with respect to its putative involvement in the pathological mechanism and its application in PD prognosis/diagnosis.
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Affiliation(s)
- Izabela Berdowska
- Correspondence: (I.B.); (M.M.); Tel.: +48-71-784-13-92 (I.B.); +48-71-784-13-70 (M.M.)
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18
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Cereulide and Deoxynivalenol Increase LC3 Protein Levels in HepG2 Liver Cells. Toxins (Basel) 2022; 14:toxins14020151. [PMID: 35202179 PMCID: PMC8880806 DOI: 10.3390/toxins14020151] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 02/14/2022] [Indexed: 02/05/2023] Open
Abstract
Food contaminants of bacterial or fungal origin frequently contaminate staple foods to various extents. Among others, the bacterial toxin cereulide (CER) and the mycotoxin deoxynivalenol (DON) co-occur in a mixed diet and are absorbed by the human body. Both toxins exert dis-tinctive mitotoxic potential. As damaged mitochondria are removed via autophagy, mitochondrial and lysosomal toxicity were assessed by applying low doses of single and combined toxins (CER 0.1-50 ng/mL; DON 0.01-5 µg/mL) to HepG2 liver cells. In addition to cytotoxicity assays, RT-qPCR was performed to investigate genes involved in lysosomal biogenesis and autophagy. CER and DON caused significant cytotoxicity on HepG2 cells after 5 and 24 h over a broad concentration range. CER, alone and in combination with DON, increased the transcription of the autophagy related genes coding for the microtubule associated protein 1A/1B light chain 3 (LC3) and sequestome 1 (SQSTM1) as well as LC3 protein expression which was determined using immunocytochemistry. DON increased LC3 protein expression without induction of gene transcription, hence it seems plausible that CER and DON act on different pathways. The results support the hypothesis that CER induces autophagy via the LC3 pathway and damaged mitochondria are therefore eliminated.
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19
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Gouda NA, Elkamhawy A, Cho J. Emerging Therapeutic Strategies for Parkinson’s Disease and Future Prospects: A 2021 Update. Biomedicines 2022; 10:biomedicines10020371. [PMID: 35203580 PMCID: PMC8962417 DOI: 10.3390/biomedicines10020371] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 01/27/2022] [Accepted: 01/28/2022] [Indexed: 11/16/2022] Open
Abstract
Parkinson’s disease (PD) is a neurodegenerative disorder pathologically distinguished by degeneration of dopaminergic neurons in the substantia nigra pars compacta. Muscle rigidity, tremor, and bradykinesia are all clinical motor hallmarks of PD. Several pathways have been implicated in PD etiology, including mitochondrial dysfunction, impaired protein clearance, and neuroinflammation, but how these factors interact remains incompletely understood. Although many breakthroughs in PD therapy have been accomplished, there is currently no cure for PD, only trials to alleviate the related motor symptoms. To reduce or stop the clinical progression and mobility impairment, a disease-modifying approach that can directly target the etiology rather than offering symptomatic alleviation remains a major unmet clinical need in the management of PD. In this review, we briefly introduce current treatments and pathophysiology of PD. In addition, we address the novel innovative therapeutic targets for PD therapy, including α-synuclein, autophagy, neurodegeneration, neuroinflammation, and others. Several immunomodulatory approaches and stem cell research currently in clinical trials with PD patients are also discussed. Moreover, preclinical studies and clinical trials evaluating the efficacy of novel and repurposed therapeutic agents and their pragmatic applications with encouraging outcomes are summarized. Finally, molecular biomarkers under active investigation are presented as potentially valuable tools for early PD diagnosis.
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Affiliation(s)
- Noha A. Gouda
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang 10326, Korea; (N.A.G.); (A.E.)
| | - Ahmed Elkamhawy
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang 10326, Korea; (N.A.G.); (A.E.)
- Department of Pharmaceutical Organic Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Jungsook Cho
- College of Pharmacy and Integrated Research Institute for Drug Development, Dongguk University-Seoul, Goyang 10326, Korea; (N.A.G.); (A.E.)
- Correspondence:
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20
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Novak G, Kyriakis D, Grzyb K, Bernini M, Rodius S, Dittmar G, Finkbeiner S, Skupin A. Single-cell transcriptomics of human iPSC differentiation dynamics reveal a core molecular network of Parkinson's disease. Commun Biol 2022; 5:49. [PMID: 35027645 PMCID: PMC8758783 DOI: 10.1038/s42003-021-02973-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2020] [Accepted: 12/14/2021] [Indexed: 01/02/2023] Open
Abstract
Parkinson's disease (PD) is the second-most prevalent neurodegenerative disorder, characterized by the loss of dopaminergic neurons (mDA) in the midbrain. The underlying mechanisms are only partly understood and there is no treatment to reverse PD progression. Here, we investigated the disease mechanism using mDA neurons differentiated from human induced pluripotent stem cells (hiPSCs) carrying the ILE368ASN mutation within the PINK1 gene, which is strongly associated with PD. Single-cell RNA sequencing (RNAseq) and gene expression analysis of a PINK1-ILE368ASN and a control cell line identified genes differentially expressed during mDA neuron differentiation. Network analysis revealed that these genes form a core network, members of which interact with all known 19 protein-coding Parkinson's disease-associated genes. This core network encompasses key PD-associated pathways, including ubiquitination, mitochondrial function, protein processing, RNA metabolism, and vesicular transport. Proteomics analysis showed a consistent alteration in proteins of dopamine metabolism, indicating a defect of dopaminergic metabolism in PINK1-ILE368ASN neurons. Our findings suggest the existence of a network onto which pathways associated with PD pathology converge, and offers an inclusive interpretation of the phenotypic heterogeneity of PD.
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Affiliation(s)
- Gabriela Novak
- The Integrative Cell Signalling Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
- Luxembourg Institute of Health (LIH), Esch-sur-Alzette, Luxembourg.
- Center for Systems and Therapeutics, the Gladstone Institutes and Departments of Neurology and Physiology, University of California, San Francisco, San Francisco, CA, 94158, USA.
| | - Dimitrios Kyriakis
- The Integrative Cell Signalling Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Kamil Grzyb
- The Integrative Cell Signalling Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Michela Bernini
- The Integrative Cell Signalling Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Sophie Rodius
- Department of Infection and Immunity, Luxembourg Institute of Health, Strassen, Luxembourg
| | - Gunnar Dittmar
- Department of Infection and Immunity, Luxembourg Institute of Health, Strassen, Luxembourg
- Department of Life Sciences and Medicine, University of Luxembourg, Belvaux, Luxembourg
| | - Steven Finkbeiner
- Center for Systems and Therapeutics, the Gladstone Institutes and Departments of Neurology and Physiology, University of California, San Francisco, San Francisco, CA, 94158, USA
| | - Alexander Skupin
- The Integrative Cell Signalling Group, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.
- University of California San Diego, La Jolla, CA, 92093, USA.
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21
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Lüth T, Laβ J, Schaake S, Wohlers I, Pozojevic J, Jamora RDG, Rosales RL, Brüggemann N, Saranza G, Diesta CCE, Schlüter K, Tse R, Reyes CJ, Brand M, Busch H, Klein C, Westenberger A, Trinh J. Elucidating Hexanucleotide Repeat Number and Methylation within the X-Linked Dystonia-Parkinsonism (XDP)-Related SVA Retrotransposon in TAF1 with Nanopore Sequencing. Genes (Basel) 2022; 13:genes13010126. [PMID: 35052466 PMCID: PMC8775018 DOI: 10.3390/genes13010126] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 01/05/2022] [Accepted: 01/07/2022] [Indexed: 12/13/2022] Open
Abstract
Background: X-linked dystonia-parkinsonism (XDP) is an adult-onset neurodegenerative disorder characterized by progressive dystonia and parkinsonism. It is caused by a SINE-VNTR-Alu (SVA) retrotransposon insertion in the TAF1 gene with a polymorphic (CCCTCT)n domain that acts as a genetic modifier of disease onset and expressivity. Methods: Herein, we used Nanopore sequencing to investigate SVA genetic variability and methylation. We used blood-derived DNA from 96 XDP patients for amplicon-based deep Nanopore sequencing and validated it with fragment analysis which was performed using fluorescence-based PCR. To detect methylation from blood- and brain-derived DNA, we used a Cas9-targeted approach. Results: High concordance was observed for hexanucleotide repeat numbers detected with Nanopore sequencing and fragment analysis. Within the SVA locus, there was no difference in genetic variability other than variations of the repeat motif between patients. We detected high CpG methylation frequency (MF) of the SVA and flanking regions (mean MF = 0.94, SD = ±0.12). Our preliminary results suggest only subtle differences between the XDP patient and the control in predicted enhancer sites directly flanking the SVA locus. Conclusions: Nanopore sequencing can reliably detect SVA hexanucleotide repeat numbers, methylation and, lastly, variation in the repeat motif.
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Affiliation(s)
- Theresa Lüth
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Joshua Laβ
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Susen Schaake
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Inken Wohlers
- Medical Systems Biology Division, Luebeck Institute of Experimental Dermatology, University of Luebeck, 23538 Luebeck, Germany; (I.W.); (H.B.)
- Institute for Cardiogenetics, University of Luebeck, 23538 Luebeck, Germany
| | - Jelena Pozojevic
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Roland Dominic G. Jamora
- Department of Neurosciences, College of Medicine, Philippine General Hospital, University of the Philippines Manila, Manila 1000, Philippines;
| | - Raymond L. Rosales
- Department of Neurology and Psychiatry, The Hospital Neuroscience Institute, University of Santo Tomas, Manila 1008, Philippines;
| | - Norbert Brüggemann
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
- Department of Neurology, University of Luebeck, 23538 Luebeck, Germany
| | - Gerard Saranza
- Section of Neurology, Department of Internal Medicine, Chong Hua Hospital, Cebu City 6000, Philippines;
| | - Cid Czarina E. Diesta
- Department of Neurosciences, Movement Disorders Clinic, Makati Medical Center, Makati 1229, Philippines;
| | - Kathleen Schlüter
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Ronnie Tse
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Charles Jourdan Reyes
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Max Brand
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Hauke Busch
- Medical Systems Biology Division, Luebeck Institute of Experimental Dermatology, University of Luebeck, 23538 Luebeck, Germany; (I.W.); (H.B.)
- Institute for Cardiogenetics, University of Luebeck, 23538 Luebeck, Germany
| | - Christine Klein
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Ana Westenberger
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
| | - Joanne Trinh
- Institute of Neurogenetics, University of Luebeck, 23538 Luebeck, Germany; (T.L.); (J.L.); (S.S.); (J.P.); (N.B.); (K.S.); (R.T.); (C.J.R.); (M.B.); (C.K.); (A.W.)
- Correspondence:
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22
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TRAP1 inhibits MIC60 ubiquitination to mitigate the injury of cardiomyocytes and protect mitochondria in extracellular acidosis. Cell Death Dis 2021; 7:389. [PMID: 34907169 PMCID: PMC8671480 DOI: 10.1038/s41420-021-00786-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/23/2021] [Accepted: 12/02/2021] [Indexed: 12/19/2022]
Abstract
Extracellular acidosis-induced mitochondrial damage of cardiomyocytes leads to cardiac dysfunction, but no detailed mechanism or efficient therapeutic target has been reported. Here we found that the protein levels of MIC60 were decreased in H9C2 cells and heart tissues in extracellular acidosis, which caused mitochondrial damage and cardiac dysfunction. Overexpression of MIC60 maintains H9C2 cells viability, increases ATP production and mitochondrial membrane potential, mitigates the disruptions of mitochondrial structure and cardiac injury. Mechanistically, extracellular acidosis excessively promoted MIC60 ubiquitin-dependent degradation. TRAP1 mitigated acidosis-induced mitochondrial impairments and cardiac injury by directly interacting with MIC60 to decrease its ubiquitin-dependent degradation in extracellular acidosis.
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23
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Tang Y, Wang L, Yi T, Xu J, Wang J, Qin JJ, Chen Q, Yip KM, Pan Y, Hong P, Lu Y, Shen HM, Chen HB. Synergistic effects of autophagy/mitophagy inhibitors and magnolol promote apoptosis and antitumor efficacy. Acta Pharm Sin B 2021; 11:3966-3982. [PMID: 35024319 PMCID: PMC8727919 DOI: 10.1016/j.apsb.2021.06.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 04/20/2021] [Accepted: 04/27/2021] [Indexed: 12/14/2022] Open
Abstract
Mitochondria as a signaling platform play crucial roles in deciding cell fate. Many classic anticancer agents are known to trigger cell death through induction of mitochondrial damage. Mitophagy, one selective autophagy, is the key mitochondrial quality control that effectively removes damaged mitochondria. However, the precise roles of mitophagy in tumorigenesis and anticancer agent treatment remain largely unclear. Here, we examined the functional implication of mitophagy in the anticancer properties of magnolol, a natural product isolated from herbal Magnolia officinalis. First, we found that magnolol induces mitochondrial depolarization, causes excessive mitochondrial fragmentation, and increases mitochondrial reactive oxygen species (mtROS). Second, magnolol induces PTEN-induced putative kinase protein 1 (PINK1)‒Parkin-mediated mitophagy through regulating two positive feedforward amplification loops. Third, magnolol triggers cancer cell death and inhibits neuroblastoma tumor growth via the intrinsic apoptosis pathway. Moreover, magnolol prolongs the survival time of tumor-bearing mice. Finally, inhibition of mitophagy by PINK1/Parkin knockdown or using inhibitors targeting different autophagy/mitophagy stages significantly promotes magnolol-induced cell death and enhances magnolol's anticancer efficacy, both in vitro and in vivo. Altogether, our study demonstrates that magnolol can induce autophagy/mitophagy and apoptosis, whereas blockage of autophagy/mitophagy remarkably enhances the anticancer efficacy of magnolol, suggesting that targeting mitophagy may be a promising strategy to overcome chemoresistance and improve anticancer therapy.
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Affiliation(s)
- Yancheng Tang
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
| | - Liming Wang
- School of Biomedical Sciences, Hunan University, Changsha 410082, China
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Tao Yi
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
| | - Jun Xu
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
| | - Jigang Wang
- Artemisinin Research Center, China Academy of Chinese Medical Sciences, Beijing 100700, China
- The First Affiliated Hospital of Southern University of Science and Technology, the Second Clinical Medical College of Jinan University, Shenzhen People's Hospital, Shenzhen 518020, China
| | - Jiang-Jiang Qin
- The Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Hangzhou 310022, China
| | - Qilei Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
| | - Ka-Man Yip
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
| | - Yihang Pan
- Department of Medical Research, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Peng Hong
- Department of Medical Research, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
| | - Yingying Lu
- Department of Medical Research, Seventh Affiliated Hospital, Sun Yat-sen University, Shenzhen 518107, China
- Department of Biomedical Science, City University of Hong Kong, Hong Kong SAR 999077, China
- Corresponding authors. Tel./fax: +852 93590902.
| | - Han-Ming Shen
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Faculty of Health Sciences, University of Macau, Macau SAR 999078, China
- Corresponding authors. Tel./fax: +852 93590902.
| | - Hu-Biao Chen
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong SAR 999077, China
- Corresponding authors. Tel./fax: +852 93590902.
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24
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Litwiniuk A, Baranowska-Bik A, Domańska A, Kalisz M, Bik W. Contribution of Mitochondrial Dysfunction Combined with NLRP3 Inflammasome Activation in Selected Neurodegenerative Diseases. Pharmaceuticals (Basel) 2021; 14:ph14121221. [PMID: 34959622 PMCID: PMC8703835 DOI: 10.3390/ph14121221] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/21/2021] [Accepted: 11/22/2021] [Indexed: 12/19/2022] Open
Abstract
Alzheimer's disease and Parkinson's disease are the most common forms of neurodegenerative illnesses. It has been widely accepted that neuroinflammation is the key pathogenic mechanism in neurodegeneration. Both mitochondrial dysfunction and enhanced NLRP3 (nucleotide-binding oligomerization domain (NOD)-like receptor protein 3) inflammasome complex activity have a crucial role in inducing and sustaining neuroinflammation. In addition, mitochondrial-related inflammatory factors could drive the formation of inflammasome complexes, which are responsible for the activation, maturation, and release of pro-inflammatory cytokines, including interleukin-1β (IL-1β) and interleukin-18 (IL-18). The present review includes a broadened approach to the role of mitochondrial dysfunction resulting in abnormal NLRP3 activation in selected neurodegenerative diseases. Moreover, we also discuss the potential mitochondria-focused treatments that could influence the NLRP3 complex.
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Affiliation(s)
- Anna Litwiniuk
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.L.); (A.D.); (M.K.); (W.B.)
| | - Agnieszka Baranowska-Bik
- Department of Endocrinology, Centre of Postgraduate Medical Education, Cegłowska 80, 01-809 Warsaw, Poland
- Correspondence:
| | - Anita Domańska
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.L.); (A.D.); (M.K.); (W.B.)
- Department of Physiological Sciences, Institute of Veterinary Medicine, Warsaw University of Life Sciences, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Małgorzata Kalisz
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.L.); (A.D.); (M.K.); (W.B.)
| | - Wojciech Bik
- Department of Neuroendocrinology, Centre of Postgraduate Medical Education, Marymoncka 99/103, 01-813 Warsaw, Poland; (A.L.); (A.D.); (M.K.); (W.B.)
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25
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Shen JL, Fortier TM, Wang R, Baehrecke EH. Vps13D functions in a Pink1-dependent and Parkin-independent mitophagy pathway. J Cell Biol 2021; 220:212607. [PMID: 34459871 PMCID: PMC8406608 DOI: 10.1083/jcb.202104073] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/27/2021] [Accepted: 08/11/2021] [Indexed: 12/22/2022] Open
Abstract
Defects in autophagy cause problems in metabolism, development, and disease. The autophagic clearance of mitochondria, mitophagy, is impaired by the loss of Vps13D. Here, we discover that Vps13D regulates mitophagy in a pathway that depends on the core autophagy machinery by regulating Atg8a and ubiquitin localization. This process is Pink1 dependent, with loss of pink1 having similar autophagy and mitochondrial defects as loss of vps13d. The role of Pink1 has largely been studied in tandem with Park/Parkin, an E3 ubiquitin ligase that is widely considered to be crucial in Pink1-dependent mitophagy. Surprisingly, we find that loss of park does not exhibit the same autophagy and mitochondrial deficiencies as vps13d and pink1 mutant cells and contributes to mitochondrial clearance through a pathway that is parallel to vps13d. These findings provide a Park-independent pathway for Pink1-regulated mitophagy and help to explain how Vps13D regulates autophagy and mitochondrial morphology and contributes to neurodegenerative diseases.
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Affiliation(s)
- James L Shen
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
| | - Tina M Fortier
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
| | - Ruoxi Wang
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
| | - Eric H Baehrecke
- Department of Molecular, Cell and Cancer Biology, University of Massachusetts Medical School, Worcester, MA
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26
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Hsu YL, Hung HS, Tsai CW, Liu SP, Chiang YT, Kuo YH, Shyu WC, Lin SZ, Fu RH. Peiminine Reduces ARTS-Mediated Degradation of XIAP by Modulating the PINK1/Parkin Pathway to Ameliorate 6-Hydroxydopamine Toxicity and α-Synuclein Accumulation in Parkinson's Disease Models In Vivo and In Vitro. Int J Mol Sci 2021; 22:ijms221910240. [PMID: 34638579 PMCID: PMC8549710 DOI: 10.3390/ijms221910240] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2021] [Revised: 09/20/2021] [Accepted: 09/21/2021] [Indexed: 02/06/2023] Open
Abstract
Parkinson’s disease (PD) is a degenerative disease that can cause motor, cognitive, and behavioral disorders. The treatment strategies being developed are based on the typical pathologic features of PD, including the death of dopaminergic (DA) neurons in the substantia nigra of the midbrain and the accumulation of α-synuclein in neurons. Peiminine (PMN) is an extract of Fritillaria thunbergii Miq that has antioxidant and anti-neuroinflammatory effects. We used Caenorhabditis elegans and SH-SY5Y cell models of PD to evaluate the neuroprotective potential of PMN and address its corresponding mechanism of action. We found that pretreatment with PMN reduced reactive oxygen species production and DA neuron degeneration caused by exposure to 6-hydroxydopamine (6-OHDA), and therefore significantly improved the DA-mediated food-sensing behavior of 6-OHDA-exposed worms and prolonged their lifespan. PMN also diminished the accumulation of α-synuclein in transgenic worms and transfected cells. In our study of the mechanism of action, we found that PMN lessened ARTS-mediated degradation of X-linked inhibitor of apoptosis (XIAP) by enhancing the expression of PINK1/parkin. This led to reduced 6-OHDA-induced apoptosis, enhanced activity of the ubiquitin–proteasome system, and increased autophagy, which diminished the accumulation of α-synuclein. The use of small interfering RNA to down-regulate parkin reversed the benefits of PMN in the PD models. Our findings suggest PMN as a candidate compound worthy of further evaluation for the treatment of PD.
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Affiliation(s)
- Yu-Ling Hsu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
| | - Huey-Shan Hung
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
- Translational Medicine Research Center, China Medical University Hospital, Taichung 40447, Taiwan
| | - Chia-Wen Tsai
- Department of Nutrition, China Medical University, Taichung 40402, Taiwan;
| | - Shih-Ping Liu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
- Translational Medicine Research Center, China Medical University Hospital, Taichung 40447, Taiwan
| | - Yu-Ting Chiang
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
| | - Yun-Hua Kuo
- Department of Nursing, Taipei Veterans General Hospital, Taipei 12217, Taiwan;
| | - Woei-Cherng Shyu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
- Translational Medicine Research Center, China Medical University Hospital, Taichung 40447, Taiwan
| | - Shinn-Zong Lin
- Bioinnovation Center, Tzu Chi Foundation, Department of Neurosurgery, Buddhist Tzu Chi General Hospital, Tzu Chi University, Hualien 970, Taiwan;
| | - Ru-Huei Fu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 40402, Taiwan; (Y.-L.H.); (H.-S.H.); (S.-P.L.); (Y.-T.C.); (W.-C.S.)
- Translational Medicine Research Center, China Medical University Hospital, Taichung 40447, Taiwan
- Department of Psychology, Asia University, Taichung 41354, Taiwan
- Correspondence: ; Tel.: +886-422052121-7826
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27
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Goudarzi S, Hosseini A, Abdollahi M, Haghi-Aminjan H. Insights Into Parkin-Mediated Mitophagy in Alzheimer's Disease: A Systematic Review. Front Aging Neurosci 2021; 13:674071. [PMID: 34393755 PMCID: PMC8358451 DOI: 10.3389/fnagi.2021.674071] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 06/28/2021] [Indexed: 11/13/2022] Open
Abstract
Background: Parkin-mediated mitophagy is the dominant mitophagy pathway of neural cells. Its restoration will result in prevention of cognitive decline, including Alzheimer's disease (AD). The role of this mitophagy pathway in neurodegenerative diseases has drawn attention in recent years. The two main pathological proteins in AD, amyloid β (Aβ) and human Tau (hTau), interfere with mitochondrial dynamics through several pathways. However, taking into consideration the specific interactions between Aβ/hTau and Parkin, special focus is required on this mitophagy pathway and AD. In this review, these interactions are fully discussed, and an overview of the neuroprotective drugs that enhance Parkin-mediated mitophagy is presented. Methods: This systematic review was performed according to PRISMA guidelines, and a comprehensive literature search was done in the electronic databases up to September 2020, using search terms in the titles and abstracts to identify relevant studies. One hundred eighty-six articles were found, and 113 articles were screened by title and abstract. Finally, 25 articles were included in this systematic review according to our inclusion and exclusion criteria. Results: Accumulation of Aβ and hTau affects mitophagy, including Parkin-mediated. Tau seems to prevent Parkin translocation directly. A Parkin level in the cell appears to be of importance in determining the damage caused by Aβ and hTau and in the future therapeutic approaches. Parkin controls the PINK1 level via the presenillins, suggesting that mutations in presenillins affect Parkin mitophagy. Significance: Parkin mitophagy is a process affected by several AD pathological events multidimensionally.
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Affiliation(s)
- Sepideh Goudarzi
- Department of Toxicology and Pharmacology, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - Asieh Hosseini
- Razi Drug Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Abdollahi
- Department of Toxicology and Pharmacology, School of Pharmacy, and Toxicology and Diseases Group, Pharmaceutical Sciences Research Center, The Institute of Pharmaceutical Sciences, Tehran University of Medical Sciences, Tehran, Iran
| | - Hamed Haghi-Aminjan
- Pharmaceutical Sciences Research Center, Ardabil University of Medical Sciences, Ardabil, Iran
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28
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Abstract
Parkinson's disease is a recognisable clinical syndrome with a range of causes and clinical presentations. Parkinson's disease represents a fast-growing neurodegenerative condition; the rising prevalence worldwide resembles the many characteristics typically observed during a pandemic, except for an infectious cause. In most populations, 3-5% of Parkinson's disease is explained by genetic causes linked to known Parkinson's disease genes, thus representing monogenic Parkinson's disease, whereas 90 genetic risk variants collectively explain 16-36% of the heritable risk of non-monogenic Parkinson's disease. Additional causal associations include having a relative with Parkinson's disease or tremor, constipation, and being a non-smoker, each at least doubling the risk of Parkinson's disease. The diagnosis is clinically based; ancillary testing is reserved for people with an atypical presentation. Current criteria define Parkinson's disease as the presence of bradykinesia combined with either rest tremor, rigidity, or both. However, the clinical presentation is multifaceted and includes many non-motor symptoms. Prognostic counselling is guided by awareness of disease subtypes. Clinically manifest Parkinson's disease is preceded by a potentially long prodromal period. Presently, establishment of prodromal symptoms has no clinical implications other than symptom suppression, although recognition of prodromal parkinsonism will probably have consequences when disease-modifying treatments become available. Treatment goals vary from person to person, emphasising the need for personalised management. There is no reason to postpone symptomatic treatment in people developing disability due to Parkinson's disease. Levodopa is the most common medication used as first-line therapy. Optimal management should start at diagnosis and requires a multidisciplinary team approach, including a growing repertoire of non-pharmacological interventions. At present, no therapy can slow down or arrest the progression of Parkinson's disease, but informed by new insights in genetic causes and mechanisms of neuronal death, several promising strategies are being tested for disease-modifying potential. With the perspective of people with Parkinson's disease as a so-called red thread throughout this Seminar, we will show how personalised management of Parkinson's disease can be optimised.
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Affiliation(s)
- Bastiaan R Bloem
- Radboud University Medical Centre, Donders Institute for Brain, Cognition and Behaviour, Department of Neurology, Centre of Expertise for Parkinson and Movement Disorders, Nijmegen, Netherlands.
| | - Michael S Okun
- Department of Neurology, Norman Fixel Institute for Neurological Diseases, University of Florida, Gainesville, FL, USA
| | - Christine Klein
- Institute of Neurogenetics and Department of Neurology, University of Lübeck and University Hospital Schleswig-Holstein, Lübeck, Germany
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29
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Cui Y, Song M, Xiao B, Huang W, Zhang J, Zhang X, Shao B, Han Y, Li Y. PINK1/Parkin-Mediated Mitophagy Plays a Protective Role in the Bone Impairment Caused by Aluminum Exposure. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6054-6063. [PMID: 34018397 DOI: 10.1021/acs.jafc.1c01921] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
The pollution of aluminum (Al) in agricultural production and its wide application in food processing greatly increase the chance of human and animal exposure. Al can accumulate in bone and cause bone diseases by inducing oxidative stress. Mitophagy can maintain normal cell function by degrading damaged mitochondria and scavenging reactive oxygen species. However, the role of mitophagy in the bone impairment caused by Al is unknown. In this study, we demonstrated that PTEN induced putative kinase 1 (PINK1)/ E3 ubiquitin ligase PARK2 (Parkin)-mediated mitophagy was activated in the bone impairment caused by Al in vivo. Then, the Al-induced mitophagy in Parkin-deficient mice and MC3T3-E1 cells were decreased. Meanwhile, Parkin deficiency exacerbated the bone impairment, mitochondrial damage, and oxidative stress under Al exposure, both in vivo and in vitro. In general, the results reveal that Al exposure can activate PINK1/Parkin-mediated mitophagy, and the PINK1/Parkin-mediated mitophagy plays a protective role in the bone impairment caused by Al.
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Affiliation(s)
- Yilong Cui
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Miao Song
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Bonan Xiao
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Wanyue Huang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Jian Zhang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xuliang Zhang
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Bing Shao
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yanfei Han
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yanfei Li
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
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30
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Maity S, Saha A. Therapeutic Potential of Exploiting Autophagy Cascade Against Coronavirus Infection. Front Microbiol 2021; 12:675419. [PMID: 34054782 PMCID: PMC8160449 DOI: 10.3389/fmicb.2021.675419] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 04/20/2021] [Indexed: 12/12/2022] Open
Abstract
Since its emergence in December 2019 in Wuhan, China, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) created a worldwide pandemic of coronavirus disease (COVID-19) with nearly 136 million cases and approximately 3 million deaths. Recent studies indicate that like other coronaviruses, SARS-CoV-2 also hijacks or usurps various host cell machineries including autophagy for its replication and disease pathogenesis. Double membrane vesicles generated during initiation of autophagy cascade act as a scaffold for the assembly of viral replication complexes and facilitate RNA synthesis. The use of autophagy inhibitors - chloroquine and hydroxychloroquine initially appeared to be as a potential treatment strategy of COVID-19 patients but later remained at the center of debate due to high cytotoxic effects. In the absence of a specific drug or vaccine, there is an urgent need for a safe, potent as well as affordable drug to control the disease spread. Given the intricate connection between autophagy machinery and viral pathogenesis, the question arises whether targeting autophagy pathway might show a path to fight against SARS-CoV-2 infection. In this review we will discuss about our current knowledge linking autophagy to coronaviruses and how that is being utilized to repurpose autophagy modulators as potential COVID-19 treatment.
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Affiliation(s)
| | - Abhik Saha
- School of Biotechnology, Presidency University, Kolkata, India
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31
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Yang D, Ying J, Wang X, Zhao T, Yoon S, Fang Y, Zheng Q, Liu X, Yu W, Hua F. Mitochondrial Dynamics: A Key Role in Neurodegeneration and a Potential Target for Neurodegenerative Disease. Front Neurosci 2021; 15:654785. [PMID: 33912006 PMCID: PMC8072049 DOI: 10.3389/fnins.2021.654785] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2021] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
In neurodegenerative diseases, neurodegeneration has been related to several mitochondrial dynamics imbalances such as excessive fragmentation of mitochondria, impaired mitophagy, and blocked mitochondria mitochondrial transport in axons. Mitochondria are dynamic organelles, and essential for energy conversion, neuron survival, and cell death. As mitochondrial dynamics have a significant influence on homeostasis, in this review, we mainly discuss the role of mitochondrial dynamics in several neurodegenerative diseases. There is evidence that several mitochondrial dynamics-associated proteins, as well as related pathways, have roles in the pathological process of neurodegenerative diseases with an impact on mitochondrial functions and metabolism. However, specific pathological mechanisms need to be better understood in order to propose new therapeutic strategies targeting mitochondrial dynamics that have shown promise in recent studies.
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Affiliation(s)
- Danying Yang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Jun Ying
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Xifeng Wang
- Department of Anesthesiology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Tiancheng Zhao
- Mailman School of Public Health, Columbia University, New York, NY, United States
| | - Sungtae Yoon
- Helping Minds International Charitable Foundation, New York, NY, United States
| | - Yang Fang
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Qingcui Zheng
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Xing Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Wen Yu
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
| | - Fuzhou Hua
- Department of Anesthesiology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Key Laboratory of Anesthesiology of Jiangxi Province, Nanchang, China
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The Nonribosomal Peptide Valinomycin: From Discovery to Bioactivity and Biosynthesis. Microorganisms 2021; 9:microorganisms9040780. [PMID: 33917912 PMCID: PMC8068249 DOI: 10.3390/microorganisms9040780] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/03/2021] [Accepted: 04/07/2021] [Indexed: 12/17/2022] Open
Abstract
Valinomycin is a nonribosomal peptide that was discovered from Streptomyces in 1955. Over the past more than six decades, it has received continuous attention due to its special chemical structure and broad biological activities. Although many research papers have been published on valinomycin, there has not yet been a comprehensive review that summarizes the diverse studies ranging from structural characterization, biogenesis, and bioactivity to the identification of biosynthetic gene clusters and heterologous biosynthesis. In this review, we aim to provide an overview of valinomycin to address this gap, covering from 1955 to 2020. First, we introduce the chemical structure of valinomycin together with its chemical properties. Then, we summarize the broad spectrum of bioactivities of valinomycin. Finally, we describe the valinomycin biosynthetic gene cluster and reconstituted biosynthesis of valinomycin. With that, we discuss possible opportunities for the future research and development of valinomycin.
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Dymkowska D. The involvement of autophagy in the maintenance of endothelial homeostasis: The role of mitochondria. Mitochondrion 2021; 57:131-147. [PMID: 33412335 DOI: 10.1016/j.mito.2020.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 12/22/2020] [Accepted: 12/30/2020] [Indexed: 02/06/2023]
Abstract
Endothelial mitochondria play important signaling roles critical for the regulation of various cellular processes, including calcium signaling, ROS generation, NO synthesis or inflammatory response. Mitochondrial stress or disturbances in mitochondrial function may participate in the development and/or progression of endothelial dysfunction and could precede vascular diseases. Vascular functions are also strictly regulated by properly functioning degradation machinery, including autophagy and mitophagy, and tightly coordinated by mitochondrial and endoplasmic reticulum responses to stress. Within this review, current knowledge related to the development of cardiovascular disorders and the importance of mitochondria, endoplasmic reticulum and degradation mechanisms in vascular endothelial functions are summarized.
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Affiliation(s)
- Dorota Dymkowska
- The Laboratory of Cellular Metabolism, Nencki Institute of Experimental Biology PAS, 3 Pasteur str. 02-093 Warsaw, Poland.
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Characterization of Actinomycetes Strains Isolated from the Intestinal Tract and Feces of the Larvae of the Longhorn Beetle Cerambyx welensii. Microorganisms 2020; 8:microorganisms8122013. [PMID: 33339339 PMCID: PMC7766275 DOI: 10.3390/microorganisms8122013] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/04/2020] [Accepted: 12/14/2020] [Indexed: 01/06/2023] Open
Abstract
Actinomycetes constitute a large group of Gram-positive bacteria present in different habitats. One of these habitats involves the association of these bacteria with insects. In this work, we have studied twenty-four actinomycetes strains isolated from the intestinal tract and feces from larvae of the xylophagous coleopteran Cerambyx welensii and have shown that seventeen strains present hydrolytic activity of some of the following substrates: cellulose, hemicellulose, starch and proteins. Fourteen of the isolates produce antimicrobial molecules against the Gram-positive bacteria Micrococcus luteus. Analysis of seven strains led us to identify the production of a wide number of compounds including streptanoate, alpiniamide A, alteramides A and B, coproporphyrin III, deferoxamine, demethylenenocardamine, dihydropicromycin, nocardamine, picromycin, surugamides A, B, C, D and E, tirandamycins A and B, and valinomycin. A significant number of other compounds, whose molecular formulae are not included in the Dictionary of Natural Products (DNP), were also present in the extracts analyzed, which opens up the possibility of identifying new active antibiotics. Molecular identification of ten of the isolated bacteria determined that six of them belong to the genus Streptomyces, two of them are included in the genus Amycolatopsis and two in the genus Nocardiopsis.
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Bus C, Zizmare L, Feldkaemper M, Geisler S, Zarani M, Schaedler A, Klose F, Admard J, Mageean CJ, Arena G, Fallier-Becker P, Ugun-Klusek A, Maruszczak KK, Kapolou K, Schmid B, Rapaport D, Ueffing M, Casadei N, Krüger R, Gasser T, Vogt Weisenhorn DM, Kahle PJ, Trautwein C, Gloeckner CJ, Fitzgerald JC. Human Dopaminergic Neurons Lacking PINK1 Exhibit Disrupted Dopamine Metabolism Related to Vitamin B6 Co-Factors. iScience 2020; 23:101797. [PMID: 33299968 PMCID: PMC7702004 DOI: 10.1016/j.isci.2020.101797] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Revised: 08/07/2020] [Accepted: 11/10/2020] [Indexed: 01/17/2023] Open
Abstract
PINK1 loss-of-function mutations cause early onset Parkinson disease. PINK1-Parkin mediated mitophagy has been well studied, but the relevance of the endogenous process in the brain is debated. Here, the absence of PINK1 in human dopaminergic neurons inhibits ionophore-induced mitophagy and reduces mitochondrial membrane potential. Compensatory, mitochondrial renewal maintains mitochondrial morphology and protects the respiratory chain. This is paralleled by metabolic changes, including inhibition of the TCA cycle enzyme mAconitase, accumulation of NAD+, and metabolite depletion. Loss of PINK1 disrupts dopamine metabolism by critically affecting its synthesis and uptake. The mechanism involves steering of key amino acids toward energy production rather than neurotransmitter metabolism and involves cofactors related to the vitamin B6 salvage pathway identified using unbiased multi-omics approaches. We propose that reduction of mitochondrial membrane potential that cannot be controlled by PINK1 signaling initiates metabolic compensation that has neurometabolic consequences relevant to Parkinson disease. PINK1 KO hDANs do not undergo ionophore-induced mitophagy yet CI remains active PINK1 KO impacts the TCA cycle via mAconitase leading to depletion of key amino acids PINK1 KO silences PNPO, which provides essential biological co-factors Dopamine pools and neurotransmitter uptake are reduced by PINK1 loss of function
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Affiliation(s)
- Christine Bus
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany.,DZNE - German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Laimdota Zizmare
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, University of Tübingen, Tübingen, Germany
| | - Marita Feldkaemper
- Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tübingen, Tübingen, Germany
| | - Sven Geisler
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany
| | - Maria Zarani
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany
| | - Anna Schaedler
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany.,Graduate School of Cellular and Molecular Neuroscience, University of Tübingen, Tübingen, Germany
| | - Franziska Klose
- Core Facility for Medical Bioanalytics, University of Tübingen, Center for Ophthalmology, Institute for Ophthalmic Research, Tübingen, Germany
| | - Jakob Admard
- NGS Competence Center Tübingen, Institute of Medical Genetics and Applied Genomics, University of Tübingen, Germany
| | - Craig J Mageean
- DZNE - German Center for Neurodegenerative Diseases, Tübingen, Germany.,Core Facility for Medical Bioanalytics, University of Tübingen, Center for Ophthalmology, Institute for Ophthalmic Research, Tübingen, Germany
| | - Giuseppe Arena
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Luxembourg
| | - Petra Fallier-Becker
- Institute of Pathology and Neuropathology, University of Tübingen, Tübingen, Germany
| | - Aslihan Ugun-Klusek
- School of Science and Technology, Nottingham Trent University, Nottingham, UK
| | - Klaudia K Maruszczak
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Konstantina Kapolou
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany.,Graduate School of Cellular and Molecular Neuroscience, University of Tübingen, Tübingen, Germany
| | - Benjamin Schmid
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany
| | - Doron Rapaport
- Interfaculty Institute of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Marius Ueffing
- Institute for Ophthalmic Research, Centre for Ophthalmology, University of Tübingen, Tübingen, Germany.,Core Facility for Medical Bioanalytics, University of Tübingen, Center for Ophthalmology, Institute for Ophthalmic Research, Tübingen, Germany
| | - Nicolas Casadei
- NGS Competence Center Tübingen, Institute of Medical Genetics and Applied Genomics, University of Tübingen, Germany
| | - Rejko Krüger
- Translational Neuroscience, Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Luxembourg.,Transversal Translational Medicine, Luxembourg Institute of Health (LIH), Strassen, Luxembourg
| | - Thomas Gasser
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany.,DZNE - German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Daniela M Vogt Weisenhorn
- Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Developmental Genetics, Munich-Neuherberg, Germany
| | - Philipp J Kahle
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany.,DZNE - German Center for Neurodegenerative Diseases, Tübingen, Germany
| | - Christoph Trautwein
- Werner Siemens Imaging Center, Department of Preclinical Imaging and Radiopharmacy, University of Tübingen, Tübingen, Germany
| | - Christian J Gloeckner
- DZNE - German Center for Neurodegenerative Diseases, Tübingen, Germany.,Core Facility for Medical Bioanalytics, University of Tübingen, Center for Ophthalmology, Institute for Ophthalmic Research, Tübingen, Germany
| | - Julia C Fitzgerald
- Department of Neurodegenerative Diseases, Centre of Neurology and Hertie Institute for Clinical Brain Research, University of Tübingen, Otfried Müller Strasse 27, 72076, Tübingen, Germany
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Sainani SR, Pansare PA, Rode K, Bhalchim V, Doke R, Desai S. Emendation of autophagic dysfuction in neurological disorders: a potential therapeutic target. Int J Neurosci 2020; 132:466-482. [PMID: 32924706 DOI: 10.1080/00207454.2020.1822356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
BACKGROUND Neurological disorders have been continuously contributing to the global disease burden and affect millions of people worldwide. Researchers strive hard to extract out the ultimate cure and serve for the betterment of the society, and yet the treatments available provide only symptomatic relief. Aging and abnormal mutations seem to be the major culprits responsible for neurotoxicity and neuronal death. One of the major causes of these neurological disorders that has been paid utmost attention recently, is Autophagic Dysfunction. AIM The aim of the study was to understand the autophagic process, its impairment in neurological disorders and targeting the impairments as a therapeutic option for the said disorders. METHODS For the purpose of review, we carried out an extensive literature study to excerpt the series of steps involved in autophagy and to understand the mechanism of autophagic impairment occurring in a range of neurodegenerative and neuropsychiatric disorders like Parkinson, Alzheimer, Depression, Schizophrenia, Autism etc. The review also involved the exploration of certain molecules that can help in triggering the compromised autophagic members. RESULTS We found that, a number of genes, proteins, receptors and transcription factors interplay to bring about autophagy and plethora of neurological disorders are associated with the diminished expression of one or more autophagic member leading to inhibition of autophagy. CONCLUSION Autophagy is a significant process for the removal of misfolded, abnormal, damaged protein aggregates and nonfunctional cell organelles in order to suppress neurodegeneration. Therefore, triggering autophagy could serve as an important therapeutic target to treat neurological disorders.
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Affiliation(s)
- Shivani R Sainani
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
| | - Prajakta A Pansare
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
| | - Ketki Rode
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
| | - Vrushali Bhalchim
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
| | - Rohit Doke
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
| | - Shivani Desai
- Department of Pharmacology, Dr D Y Patil Institute of Pharmaceutical Sciences and Research, Pune, India
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Xiong X, Li S, Han TL, Zhou F, Zhang X, Tian M, Tang L, Li Y. Study of mitophagy and ATP-related metabolomics based on β-amyloid levels in Alzheimer's disease. Exp Cell Res 2020; 396:112266. [PMID: 32905804 DOI: 10.1016/j.yexcr.2020.112266] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 08/29/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022]
Abstract
The aggregation of β-amyloid (Aβ) peptide in Alzheimer's disease (AD) is characterized by mitochondrial dysfunction and mitophagy impairment. Mitophagy is a homeostatic mechanism by which autophagy selectively eliminates damaged mitochondria. Valinomycin is a respiratory chain inhibitor that activates mitophagy via the PINK1/Parkin signaling pathway. However, the mechanism underlying the association between mitophagy and valinomycin in Aβ formation has not been explored. Here, we demonstrate that genetically modified (N2a/APP695swe) cells overexpressing a mutant amyloid precursor protein (APP) serve as an in vitro model of AD for studying mitophagy and ATP-related metabolomics. Our results prove that valinomycin induced a time-dependent increase in the mitophagy activation of N2a/APP695swe cells as indicated by increased levels of PINK1, Parkin, and LC3II as well as increased the colocalization of Parkin-Tom20 and fewer mitochondria (indicated by decreased Tom20 levels). Valinomycin significantly decreased Aβ1-42 and Aβ1-40 levels after 3 h of treatment. ATP levels and ATP-related metabolites were significantly increased at this time. Our findings suggest that the elimination of impaired mitochondria via valinomycin-induced mitophagy ameliorates AD by decreasing Aβ and improving ATP levels.
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Affiliation(s)
- Xiaomin Xiong
- Institute of Neuroscience, School of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Shijie Li
- Institute of Neuroscience, School of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Ting-Li Han
- Department of Obstetrics and Gynecology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400016, China; Institute of Life Sciences, Chongqing Medical University, Chongqing, 400016, China; Liggins Institute, University of Auckland, Auckland, 1023, New Zealand
| | - Fanlin Zhou
- Department of Pathophysiology, Chongqing Medical University, Chongqing, 400016, China
| | - Xiong Zhang
- Institute of Neuroscience, School of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China
| | - Mingyuan Tian
- Department of Endocrinology and Metabolism, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, 400010, China
| | - Li Tang
- Department of Pathophysiology, Chongqing Medical University, Chongqing, 400016, China.
| | - Yu Li
- Institute of Neuroscience, School of Basic Medicine, Chongqing Medical University, Chongqing, 400016, China; Chongqing University Cancer Hospital & Chongqing Cancer Institute & Chongqing Cancer Hospital, Chongqing, 400030, China.
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Ma H, Guo Z, Gai C, Cheng C, Zhang J, Zhang Y, Yang L, Feng W, Gao Y, Sun H. Protective effects of Buyinqianzheng Formula on mitochondrial morphology by PINK1/Parkin pathway in SH-SY5Y cells induced by MPP+. JOURNAL OF TRADITIONAL CHINESE MEDICAL SCIENCES 2020. [DOI: 10.1016/j.jtcms.2020.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
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Abstract
Mitochondrial fusion and fission (mitochondrial dynamics) are homeostatic processes that safeguard normal cellular function. This relationship is especially strong in tissues with constitutively high energy demands, such as brain, heart and skeletal muscle. Less is known about the role of mitochondrial dynamics in developmental systems that involve changes in metabolic function. One such system is spermatogenesis. The first mitochondrial dynamics gene, Fuzzy onions (Fzo), was discovered in 1997 to mediate mitochondrial fusion during Drosophila spermatogenesis. In mammals, however, the role of mitochondrial fusion during spermatogenesis remained unknown for nearly two decades after discovery of Fzo Mammalian spermatogenesis is one of the most complex and lengthy differentiation processes in biology, transforming spermatogonial stem cells into highly specialized sperm cells over a 5-week period. This elaborate differentiation process requires several developmentally regulated mitochondrial and metabolic transitions, making it an attractive model system for studying mitochondrial dynamics in vivo We review the emerging role of mitochondrial biology, and especially its dynamics, during the development of the male germ line.
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Affiliation(s)
- Grigor Varuzhanyan
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
| | - David C Chan
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA 91125, USA
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40
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Pan Y, Ai CX, Zeng L, Liu C, Li WC. Modulation of copper-induced antioxidant defense, Cu transport, and mitophagy by hypoxia in the large yellow croaker (Larimichthys crocea). FISH PHYSIOLOGY AND BIOCHEMISTRY 2020; 46:997-1010. [PMID: 31925663 DOI: 10.1007/s10695-020-00765-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 01/06/2020] [Indexed: 06/10/2023]
Abstract
This study aimed to investigate the effects of hypoxia on Cu-induced antioxidant defense, Cu transport, and mitophagy in the liver of the large yellow croaker. Fish were exposed to hypoxia (3.0 mg L-1), Cu (120 μg L-1), and hypoxia (3.0 mg L-1) plus Cu (120 μg L-1) for 48 h. Hypoxia exposure increased antioxidant abilities to maintain cellular redox balance. Although Cu exposure alone improved antioxidant defense, Cu transport, and mitophagy, these stress responses could not completely neutralize Cu toxicity, as reflected by the elevated reactive oxygen species (ROS) and lipid peroxidation (LPO) and hepatic vacuoles. When compared with Cu stress alone, hypoxia increased Cu toxicity by inhibiting antioxidant defense, Cu transport, and mitophagy, leading to the increment of mortality, ROS, and LPO, and the deterioration of histological structure. The adverse effects of hypoxia on Cu-induced metal transport and mitophagy might be involved in metal-responsive element-binding transcription factor-1 (MTF-1) and Forkhead box O-3 (FoxO3) signaling pathways, respectively. Overall, hypoxia reduced antioxidant response, Cu transport, and mitophagy in fish exposed to Cu, which contributes to understanding the molecular mechanisms underlying negative effects of hypoxia on Cu toxicity in fish.
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Affiliation(s)
- Yun Pan
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
| | - Chun-Xiang Ai
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361005, China
| | - Lin Zeng
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China.
| | - Can Liu
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
| | - Wen-Cheng Li
- National Engineering Research Center for Marine Aquaculture, Zhejiang Ocean University, Zhoushan, 316000, China
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Ryan TA, Phillips EO, Collier CL, Jb Robinson A, Routledge D, Wood RE, Assar EA, Tumbarello DA. Tollip coordinates Parkin-dependent trafficking of mitochondrial-derived vesicles. EMBO J 2020; 39:e102539. [PMID: 32311122 PMCID: PMC7265236 DOI: 10.15252/embj.2019102539] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 02/28/2020] [Accepted: 03/10/2020] [Indexed: 12/29/2022] Open
Abstract
Multiple mitochondrial quality control pathways exist to maintain the health of mitochondria and ensure cell homeostasis. Here, we investigate the role of the endosomal adaptor Tollip during the mitochondrial stress response and identify its interaction and colocalisation with the Parkinson's disease-associated E3 ubiquitin ligase Parkin. The interaction between Tollip and Parkin is dependent on the ubiquitin-binding CUE domain of Tollip, but independent of Tom1 and mitophagy. Interestingly, this interaction is independent of Parkin mitochondrial recruitment and ligase activity but requires an intact ubiquitin-like (UBL) domain. Importantly, Tollip regulates Parkin-dependent endosomal trafficking of a discrete subset of mitochondrial-derived vesicles (MDVs) to facilitate delivery to lysosomes. Retromer function and an interaction with Tom1 allow Tollip to facilitate late endosome/lysosome trafficking in response to mitochondrial stress. We find that upregulation of TOM20-positive MDVs upon mitochondrial stress requires Tollip interaction with ubiquitin, endosomal membranes and Tom1 to ensure their trafficking to the lysosomes. Thus, we conclude that Tollip, via an association with Parkin, is an essential coordinator to sort damaged mitochondrial-derived cargo to the lysosomes.
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Affiliation(s)
- Thomas A Ryan
- Biological Sciences, University of Southampton, Southampton, UK
| | | | | | | | | | - Rebecca E Wood
- Biological Sciences, University of Southampton, Southampton, UK
| | - Emelia A Assar
- Biological Sciences, University of Southampton, Southampton, UK
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Kulek AR, Anzell A, Wider JM, Sanderson TH, Przyklenk K. Mitochondrial Quality Control: Role in Cardiac Models of Lethal Ischemia-Reperfusion Injury. Cells 2020; 9:cells9010214. [PMID: 31952189 PMCID: PMC7016592 DOI: 10.3390/cells9010214] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/10/2020] [Accepted: 01/12/2020] [Indexed: 02/07/2023] Open
Abstract
The current standard of care for acute myocardial infarction or 'heart attack' is timely restoration of blood flow to the ischemic region of the heart. While reperfusion is essential for the salvage of ischemic myocardium, re-introduction of blood flow paradoxically kills (rather than rescues) a population of previously ischemic cardiomyocytes-a phenomenon referred to as 'lethal myocardial ischemia-reperfusion (IR) injury'. There is long-standing and exhaustive evidence that mitochondria are at the nexus of lethal IR injury. However, during the past decade, the paradigm of mitochondria as mediators of IR-induced cardiomyocyte death has been expanded to include the highly orchestrated process of mitochondrial quality control. Our aims in this review are to: (1) briefly summarize the current understanding of the pathogenesis of IR injury, and (2) incorporating landmark data from a broad spectrum of models (including immortalized cells, primary cardiomyocytes and intact hearts), provide a critical discussion of the emerging concept that mitochondrial dynamics and mitophagy (the components of mitochondrial quality control) may contribute to the pathogenesis of cardiomyocyte death in the setting of ischemia-reperfusion.
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Affiliation(s)
- Andrew R. Kulek
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Biochemistry, Microbiology and Immunology, Wayne State University School of Medicine, Detroit, MI 48201, USA
| | - Anthony Anzell
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Joseph M. Wider
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Thomas H. Sanderson
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Departments of Emergency Medicine and Molecular & Integrative Physiology, University of Michigan Medical School, Ann Arbor, MI 48109, USA;
| | - Karin Przyklenk
- Cardiovascular Research Institute, Wayne State University School of Medicine, Detroit, MI 48201, USA; (A.R.K.); (A.A.); (T.H.S.)
- Department of Physiology, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Department of Emergency Medicine, Wayne State University School of Medicine, Detroit, MI 48201, USA
- Correspondence: ; Tel.: +1-313-577-9047
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Wang J, Zhu P, Li R, Ren J, Zhou H. Fundc1-dependent mitophagy is obligatory to ischemic preconditioning-conferred renoprotection in ischemic AKI via suppression of Drp1-mediated mitochondrial fission. Redox Biol 2019; 30:101415. [PMID: 31901590 PMCID: PMC6940662 DOI: 10.1016/j.redox.2019.101415] [Citation(s) in RCA: 149] [Impact Index Per Article: 29.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/18/2019] [Accepted: 12/27/2019] [Indexed: 12/19/2022] Open
Abstract
FUN14 domain-containing protein 1 (Fundc1)-dependent mitophagy, mainly activated by ischemic/hypoxic preconditioning, benefits acute myocardial reperfusion injury and chronic metabolic syndrome via sustaining mitochondrial homeostasis. Mitochondrial fission plays a pathogenic role in ischemic acute kidney injury (AKI) through perturbation of mitochondrial quality and activation of mitochondrial apoptosis. The aim of our study was to explore the role of Fundc1 mitophagy in ischemia preconditioning (IPC)-mediated renoprotection. Proximal tubule-specific Fundc1 knockout (Fundc1PTKO) mice were subjected to ischemia reperfusion injury (IRI) and IPC prior to assessment of renal function, mitophagy, mitochondrial quality control, and Drp1-related mitochondrial fission. Following exposure to IPC, Fundc1 mitophagy was activated through post-transcriptional phosphorylation at Ser17. Interestingly, IRI-mediated renal injury, inflammation, and tubule cell death were mitigated by IPC whereas proximal tubule-specific Fundc1 knockout (Fundc1PTKO) mice abolished IPC-offered renoprotection. Mechanistically, IRI-evoked mitochondrial damage was improved by IPC whereas Fundc1 deficiency provoked mitochondrial abnormality, manifested by impaired mitochondrial quality and hyperactivated Drp1-dependent mitochondrial fission. Interestingly, Fundc1 deficiency-associated mitochondrial dysfunction was reversed by pharmacological inhibition of mitochondrial fission. In vivo, Fundc1 deletion-caused renal injury, severe pro-inflammatory response, and tubule cell death could be nullified by way of knockout Drp1 on Fundc1PTKO background. Finally, we also revealed that IPC triggered Fundc1 mitophagy activation through UNC-51-like kinase 1 (Ulk1) and Ulk1 ablation interrupted IPC-mediated Fundc1 activation and thus attenuated IPC-induced renoprotection. Fundc1 mitophagy, primarily driven by IPC, confers resistance to AKI through reconciliation of mitochondrial fission, implicating the therapeutic potential of targeting mitochondrial homeostasis for AKI.
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Affiliation(s)
- Jin Wang
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, 100853, China
| | - Pingjun Zhu
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, 100853, China
| | - Ruibing Li
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, 100853, China
| | - Jun Ren
- Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, 82071, USA.
| | - Hao Zhou
- Chinese PLA General Hospital, Medical School of Chinese PLA, Beijing, 100853, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY, 82071, USA.
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Grossmann D, Berenguer-Escuder C, Bellet ME, Scheibner D, Bohler J, Massart F, Rapaport D, Skupin A, Fouquier d'Hérouël A, Sharma M, Ghelfi J, Raković A, Lichtner P, Antony P, Glaab E, May P, Dimmer KS, Fitzgerald JC, Grünewald A, Krüger R. Mutations in RHOT1 Disrupt Endoplasmic Reticulum-Mitochondria Contact Sites Interfering with Calcium Homeostasis and Mitochondrial Dynamics in Parkinson's Disease. Antioxid Redox Signal 2019; 31:1213-1234. [PMID: 31303019 PMCID: PMC6798875 DOI: 10.1089/ars.2018.7718] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Aims: The outer mitochondrial membrane protein Miro1 is a crucial player in mitochondrial dynamics and calcium homeostasis. Recent evidence indicated that Miro1 mediates calcium-induced mitochondrial shape transition, which is a prerequisite for the initiation of mitophagy. Moreover, altered Miro1 protein levels have emerged as a shared feature of monogenic and sporadic Parkinson's disease (PD), but, so far, no disease-associated variants in RHOT1 have been identified. Here, we aim to explore the genetic and functional contribution of RHOT1 mutations to PD in patient-derived cellular models. Results: For the first time, we describe heterozygous RHOT1 mutations in two PD patients (het c.815G>A; het c.1348C>T) and identified mitochondrial phenotypes with reduced mitochondrial mass in patient fibroblasts. Both mutations led to decreased endoplasmic reticulum-mitochondrial contact sites and calcium dyshomeostasis. As a consequence, energy metabolism was impaired, which in turn caused increased mitophagy. Innovation and Conclusion: Our study provides functional evidence that ROTH1 is a genetic risk factor for PD, further implicating Miro1 in calcium homeostasis and mitochondrial quality control.
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Affiliation(s)
- Dajana Grossmann
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Clara Berenguer-Escuder
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Marie Estelle Bellet
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - David Scheibner
- Department of Neurodegenerative Diseases, Center of Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Jill Bohler
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Francois Massart
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Doron Rapaport
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Tübingen, Germany
| | - Alexander Skupin
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.,National Biomedical Computation Resource, University of California San Diego, La Jolla, California
| | - Aymeric Fouquier d'Hérouël
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Manu Sharma
- Centre for Genetic Epidemiology, Institute for Clinical Epidemiology and Applied Biometry, University of Tübingen, Tübingen, Germany
| | - Jenny Ghelfi
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | | | - Peter Lichtner
- Institute of Human Genetics, Helmholtz Zentrum München GmbH, Neuherberg, Germany
| | - Paul Antony
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Enrico Glaab
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Patrick May
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Kai Stefan Dimmer
- Interfaculty Institute of Biochemistry (IFIB), University of Tübingen, Tübingen, Germany
| | - Julia Catherine Fitzgerald
- Department of Neurodegenerative Diseases, Center of Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Anne Grünewald
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.,Institute of Neurogenetics, University of Lübeck, Lübeck, Germany
| | - Rejko Krüger
- Luxembourg Centre for Systems Biomedicine (LCSB), University of Luxembourg, Esch-sur-Alzette, Luxembourg.,Department of Neurodegenerative Diseases, Center of Neurology and Hertie-Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany.,Parkinson Research Clinic, Centre Hospitalier de Luxembourg (CHL), Luxembourg, Luxembourg
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45
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Mitochondrial Uncoupling: A Key Controller of Biological Processes in Physiology and Diseases. Cells 2019; 8:cells8080795. [PMID: 31366145 PMCID: PMC6721602 DOI: 10.3390/cells8080795] [Citation(s) in RCA: 260] [Impact Index Per Article: 52.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 07/26/2019] [Accepted: 07/28/2019] [Indexed: 12/27/2022] Open
Abstract
Mitochondrial uncoupling can be defined as a dissociation between mitochondrial membrane potential generation and its use for mitochondria-dependent ATP synthesis. Although this process was originally considered a mitochondrial dysfunction, the identification of UCP-1 as an endogenous physiological uncoupling protein suggests that the process could be involved in many other biological processes. In this review, we first compare the mitochondrial uncoupling agents available in term of mechanistic and non-specific effects. Proteins regulating mitochondrial uncoupling, as well as chemical compounds with uncoupling properties are discussed. Second, we summarize the most recent findings linking mitochondrial uncoupling and other cellular or biological processes, such as bulk and specific autophagy, reactive oxygen species production, protein secretion, cell death, physical exercise, metabolic adaptations in adipose tissue, and cell signaling. Finally, we show how mitochondrial uncoupling could be used to treat several human diseases, such as obesity, cardiovascular diseases, or neurological disorders.
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Padmanabhan S, Polinski NK, Menalled LB, Baptista MAS, Fiske BK. The Michael J. Fox Foundation for Parkinson's Research Strategy to Advance Therapeutic Development of PINK1 and Parkin. Biomolecules 2019; 9:biom9080296. [PMID: 31344817 PMCID: PMC6723155 DOI: 10.3390/biom9080296] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/16/2019] [Accepted: 07/19/2019] [Indexed: 01/01/2023] Open
Abstract
The role of mitochondria in Parkinson's disease (PD) has been investigated since the 1980s and is gaining attention with recent advances in PD genetics research. Mutations in PRKN and PTEN-Induced Putative Kinase 1 (PINK1) are well-established causes of autosomal recessive early-onset PD. Genetic and biochemical studies have revealed that PINK1 and Parkin proteins function together in the same biological pathway to govern mitochondrial quality control. These proteins have also been implicated in the regulation of innate and adaptive immunity and other mitochondrial functions. Additionally, structural studies on Parkin have delineated an activation mechanism and have identified druggable regions that are currently being explored by academic and industry groups. To de-risk therapeutic development for these genetic targets, The Michael J. Fox Foundation for Parkinson's Research (MJFF) has deployed a strategic funding and enabling framework that brings together the research community to discuss important breakthroughs and challenges in research on PINK1-Parkin biology, supports collaborative initiatives to further our understanding within this field and develops high-quality research tools and assays that are widely available to all researchers. The Foundation's efforts are leading to significant advances in understanding of the underlying biology of these genes, proteins and pathways and in the development of Parkinson's therapies.
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Affiliation(s)
- Shalini Padmanabhan
- The Michael J. Fox Foundation for Parkinson's Research, Grand Central Station, P.O. Box 4777, New York, NY 10120, USA.
| | - Nicole K Polinski
- The Michael J. Fox Foundation for Parkinson's Research, Grand Central Station, P.O. Box 4777, New York, NY 10120, USA
| | - Liliana B Menalled
- The Michael J. Fox Foundation for Parkinson's Research, Grand Central Station, P.O. Box 4777, New York, NY 10120, USA
| | - Marco A S Baptista
- The Michael J. Fox Foundation for Parkinson's Research, Grand Central Station, P.O. Box 4777, New York, NY 10120, USA
| | - Brian K Fiske
- The Michael J. Fox Foundation for Parkinson's Research, Grand Central Station, P.O. Box 4777, New York, NY 10120, USA
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