1
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Coukos R, Krainc D. Key genes and convergent pathogenic mechanisms in Parkinson disease. Nat Rev Neurosci 2024; 25:393-413. [PMID: 38600347 DOI: 10.1038/s41583-024-00812-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2024] [Indexed: 04/12/2024]
Abstract
Parkinson disease (PD) is a neurodegenerative disorder marked by the preferential dysfunction and death of dopaminergic neurons in the substantia nigra. The onset and progression of PD is influenced by a diversity of genetic variants, many of which lack functional characterization. To identify the most high-yield targets for therapeutic intervention, it is important to consider the core cellular compartments and functional pathways upon which the varied forms of pathogenic dysfunction may converge. Here, we review several key PD-linked proteins and pathways, focusing on the mechanisms of their potential convergence in disease pathogenesis. These dysfunctions primarily localize to a subset of subcellular compartments, including mitochondria, lysosomes and synapses. We discuss how these pathogenic mechanisms that originate in different cellular compartments may coordinately lead to cellular dysfunction and neurodegeneration in PD.
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Affiliation(s)
- Robert Coukos
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Dimitri Krainc
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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2
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Zhang H, Shi H, Xie W, Meng M, Wang Y, Ma N, Chang G, Shen X. Subacute ruminal acidosis induces pyroptosis via the mitophagy-mediated NLRP3 inflammasome activation in the livers of dairy cows fed a high-grain diet. J Dairy Sci 2024; 107:4092-4107. [PMID: 38278294 DOI: 10.3168/jds.2023-23718] [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: 05/09/2023] [Accepted: 12/23/2023] [Indexed: 01/28/2024]
Abstract
High-grain (HG) feeding can trigger subacute ruminal acidosis (SARA) and subsequent liver tissue injury. This study investigated pyroptosis and NLRP3 inflammasome activation in SARA-induced liver injury, and the role of mitophagy during this process. Twelve mid-lactating Holstein cows equipped with rumen fistulas were randomly divided into 2 groups: a low-grain (LG) diet group (grain:forage = 4:6) and a HG diet group (grain:forage = 6:4). Each group had 6 cows. The experiment lasted for 3 wk. The ruminal fluid was collected through the rumen fistula on experimental d 20 and 21, and the pH immediately measured. At the end of the experiment, all animals were slaughtered, and peripheral blood and liver tissue were collected. The ruminal pH was lower in the HG group than that in the LG group at all time points. In addition, the ruminal pH in the HG group was lower than 5.6 at 3 consecutive time points after feeding (4, 6, and 8 h on d 20; 2, 4, and 6 h on d 21), indicating that HG feeding induced SARA. The content of lipopolysaccharide, IL-1β, and apoptosis-related cysteine protease 1 (caspase-1) and the activity of alanine aminotransferase and aspartate aminotransferase in the blood plasma of the HG group were all significantly increased. Hepatic caspase-1 activity was increased in the livers of the HG group. The increased expression levels of pyroptosis- and NLRP3 inflammasome-related genes IL1B, IL18, gasdermin D (GSDMD), apoptosis-associated speck-like protein containing a card (ASC), NLR family pyrin domain-containing 3 (NLRP3), and caspase-1 (CASP1) in liver tissue of the HG group were detected. Furthermore, western blot analysis showed that HG feeding led to increased expression of pyroptosis- and NLRP3 inflammasome-related proteins GSDMD N-terminal (GSDMD-NT), IL-1β, IL-18, cleaved-caspase-1, ASC, NLRP3, and cleaved-caspase-11 and upregulated expression of mitophagy-related proteins microtubule-associated protein 1 light chain 3 II (MAP1LC3-II), beclin 1 (BECN1), Parkin, and PTEN-induced kinase 1 (PINK1) in liver tissue. Collectively, our results revealed that SARA caused increased mitophagy and activated the NLRP3 inflammasome, causing pyroptosis and subsequent liver injury in dairy cows fed a HG diet.
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Affiliation(s)
- Hongzhu Zhang
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Huimin Shi
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Wan Xie
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Meijuan Meng
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Yan Wang
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Nana Ma
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Guangjun Chang
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China
| | - Xiangzhen Shen
- Ministry of Education Joint International Research Laboratory of Animal Health and Safety, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095, Jiangsu, PR China.
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3
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Watzlawik JO, Hou X, Richardson T, Lewicki SL, Siuda J, Wszolek ZK, Cook CN, Petrucelli L, DeTure M, Dickson DW, Antico O, Muqit MMK, Fishman JB, Pirani K, Kumaran R, Polinski NK, Fiesel FC, Springer W. Development and characterization of phospho-ubiquitin antibodies to monitor PINK1-PRKN signaling in cells and tissue. Autophagy 2024:1-16. [PMID: 38802071 DOI: 10.1080/15548627.2024.2356490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 05/13/2024] [Indexed: 05/29/2024] Open
Abstract
The selective removal of dysfunctional mitochondria, a process termed mitophagy, is critical for cellular health and impairments have been linked to aging, Parkinson disease, and other neurodegenerative conditions. A central mitophagy pathway is orchestrated by the ubiquitin (Ub) kinase PINK1 together with the E3 Ub ligase PRKN/Parkin. The decoration of damaged mitochondrial domains with phosphorylated Ub (p-S65-Ub) mediates their elimination though the autophagy system. As such p-S65-Ub has emerged as a highly specific and quantitative marker of mitochondrial damage with significant disease relevance. Existing p-S65-Ub antibodies have been successfully employed as research tools in a range of applications including western blot, immunocytochemistry, immunohistochemistry, and enzyme-linked immunosorbent assay. However, physiological levels of p-S65-Ub in the absence of exogenous stress are very low, therefore difficult to detect and require reliable and ultrasensitive methods. Here we generated and characterized a collection of novel recombinant, rabbit monoclonal p-S65-Ub antibodies with high specificity and affinity in certain applications that allow the field to better understand the molecular mechanisms and disease relevance of PINK1-PRKN signaling. These antibodies may also serve as novel diagnostic or prognostic tools to monitor mitochondrial damage in various clinical and pathological specimens.Abbreviations: AD: Alzheimer disease; CCCP: carbonyl cyanide 3-chlorophenylhydrazone; ELISA: enzyme-linked immunosorbent assay; HEK293E cell: human embryonic kidney E cell; ICC: immunocytochemistry; IHC: immunohistochemistry: KO: knockout; LoB: limit of blank; LoD: limit of detection; LoQ: limit of quantification; MEF: mouse embryonic fibroblast; MSD: Meso Scale Discovery; n.s.: non-significant; nonTg: non-transgenic; PBMC: peripheral blood mononuclear cell; PD: Parkinson disease; p-S65-PRKN: phosphorylated PRKN at serine 65; p-S65-Ub: phosphorylated Ub at serine 65; Ub: ubiquitin; WT: wild-type.
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Affiliation(s)
| | - Xu Hou
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | | | | | - Joanna Siuda
- Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice, Poland
| | | | - Casey N Cook
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, USA
| | - Leonard Petrucelli
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, USA
| | - Michael DeTure
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
| | - Dennis W Dickson
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, USA
| | - Odetta Antico
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | - Miratul M K Muqit
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, UK
| | | | | | | | - Nicole K Polinski
- The Michael J. Fox Foundation for Parkinson's Research, New York, NY, USA
| | - Fabienne C Fiesel
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, USA
| | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, USA
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4
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de Talhouët C, Esteras N, Soutar MPM, O'Callaghan B, Plun-Favreau H. KAT8 compound inhibition inhibits the initial steps of PINK1-dependant mitophagy. Sci Rep 2024; 14:11721. [PMID: 38777823 PMCID: PMC11111795 DOI: 10.1038/s41598-024-60602-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Accepted: 04/25/2024] [Indexed: 05/25/2024] Open
Abstract
It has recently been shown that KAT8, a genome-wide association study candidate risk gene for Parkinson's Disease, is involved in PINK1/Parkin-dependant mitophagy. The KAT8 gene encodes a lysine acetyltransferase and represents the catalytically active subunit of the non-specific lethal epigenetic remodelling complex. In the current study, we show that contrary to KAT5 inhibition, dual inhibition of KAT5 and KAT8 via the MG149 compound inhibits the initial steps of the PINK1-dependant mitophagy process. More specifically, our study shows that following mitochondrial depolarisation induced by mitochondrial toxins, MG149 treatment inhibits PINK1-dependant mitophagy initiation by impairing PINK1 activation, and subsequent phosphorylation of Parkin and ubiquitin. While this inhibitory effect of MG149 on PINK1-activation is potent, MG149 treatment in the absence of mitochondrial toxins is sufficient to depolarise the mitochondrial membrane, recruit PINK1 and promote partial downstream recruitment of the autophagy receptor p62, leading to an increase in mitochondrial delivery to the lysosomes. Altogether, our study provides additional support for KAT8 as a regulator of mitophagy and autophagy processes.
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Affiliation(s)
- Capucine de Talhouët
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Noemi Esteras
- Department of Biochemistry and Molecular Biology, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Marc P M Soutar
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK
| | - Benjamin O'Callaghan
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
| | - Helene Plun-Favreau
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, London, UK.
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA.
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5
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Clausen L, Okarmus J, Voutsinos V, Meyer M, Lindorff-Larsen K, Hartmann-Petersen R. PRKN-linked familial Parkinson's disease: cellular and molecular mechanisms of disease-linked variants. Cell Mol Life Sci 2024; 81:223. [PMID: 38767677 PMCID: PMC11106057 DOI: 10.1007/s00018-024-05262-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 04/25/2024] [Accepted: 05/02/2024] [Indexed: 05/22/2024]
Abstract
Parkinson's disease (PD) is a common and incurable neurodegenerative disorder that arises from the loss of dopaminergic neurons in the substantia nigra and is mainly characterized by progressive loss of motor function. Monogenic familial PD is associated with highly penetrant variants in specific genes, notably the PRKN gene, where homozygous or compound heterozygous loss-of-function variants predominate. PRKN encodes Parkin, an E3 ubiquitin-protein ligase important for protein ubiquitination and mitophagy of damaged mitochondria. Accordingly, Parkin plays a central role in mitochondrial quality control but is itself also subject to a strict protein quality control system that rapidly eliminates certain disease-linked Parkin variants. Here, we summarize the cellular and molecular functions of Parkin, highlighting the various mechanisms by which PRKN gene variants result in loss-of-function. We emphasize the importance of high-throughput assays and computational tools for the clinical classification of PRKN gene variants and how detailed insights into the pathogenic mechanisms of PRKN gene variants may impact the development of personalized therapeutics.
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Affiliation(s)
- Lene Clausen
- Department of Biology, Linderstrøm-Lang Centre for Protein Science, University of Copenhagen, 2200, Copenhagen, Denmark
| | - Justyna Okarmus
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5230, Odense, Denmark
| | - Vasileios Voutsinos
- Department of Biology, Linderstrøm-Lang Centre for Protein Science, University of Copenhagen, 2200, Copenhagen, Denmark
| | - Morten Meyer
- Department of Neurobiology Research, Institute of Molecular Medicine, University of Southern Denmark, 5230, Odense, Denmark
- Department of Neurology, Odense University Hospital, 5000, Odense, Denmark
- Department of Clinical Research, BRIDGE, Brain Research Inter Disciplinary Guided Excellence, University of Southern Denmark, 5230, Odense, Denmark
| | - Kresten Lindorff-Larsen
- Department of Biology, Linderstrøm-Lang Centre for Protein Science, University of Copenhagen, 2200, Copenhagen, Denmark
| | - Rasmus Hartmann-Petersen
- Department of Biology, Linderstrøm-Lang Centre for Protein Science, University of Copenhagen, 2200, Copenhagen, Denmark.
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6
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D'Arcy MS. Mitophagy in health and disease. Molecular mechanisms, regulatory pathways, and therapeutic implications. Apoptosis 2024:10.1007/s10495-024-01977-y. [PMID: 38758472 DOI: 10.1007/s10495-024-01977-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/03/2024] [Indexed: 05/18/2024]
Abstract
Mitophagy, a specialised form of autophagy, selectively targeting damaged or dysfunctional mitochondria, and is crucial for maintaining cellular homeostasis and mitochondrial quality control. Dysregulation of mitophagy contributes to various pathological conditions, including cancer, neurodegenerative and cardiovascular diseases. This review presents a comprehensive analysis of the molecular mechanisms, regulatory pathways, and interplay with other cellular processes governing mitophagy, emphasizing its importance in physiological and pathological contexts. We explore the PINK1/Parkin-mediated and receptor-mediated mitophagy pathways, encompassing BNIP3/NIX, FUNDC1, and Bcl2-L-13. Additionally, we discuss post-translational modifications and cellular signalling pathways modulating mitophagy, as well as the connection between mitophagy and ageing, highlighting the decline in mitophagy efficiency and its impact on age-related pathologies. The review also investigates mitophagy's role in human diseases such as cancer, myocardial ischemia-reperfusion injury, Parkinson's, and Alzheimer's disease. We assess the potential of mitophagy-targeting therapeutic strategies, focusing on the development of dietary therapies, small molecules, drugs, and gene therapy approaches that modulate mitophagy levels and efficiency for treating these diseases and dysfunctions commonly observed in ageing individuals. In summary, this review offers an extensive overview of the molecular mechanisms and regulatory networks involved in mitophagy, its association with autophagy, and implications in human health and disease. By examining the potential of mitophagy-modulating therapies in disease and non-disease settings, we aim to inspire further research to develop innovative treatment strategies for various pathological conditions linked to mitochondrial dysfunction and to ageing.
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Affiliation(s)
- Mark S D'Arcy
- Hertfordshire International College, College Lane, Hatfield, AL10 9AB, UK.
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7
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Hertz N, Chin R, Rakhit R, Ditsworth D, Wang C, Bartholomeus J, Liu S, Mody A, Laihsu A, Eastes A, Tai C, Kim R, Li J, Khasnavis S, Rafalski V, Heerendeen D, Garda V, Phung J, de Roulet D, Ordureau A, Harper JW, Johnstone S, Stöhr J. Pharmacological PINK1 activation ameliorates Pathology in Parkinson's Disease models. RESEARCH SQUARE 2024:rs.3.rs-4356493. [PMID: 38765977 PMCID: PMC11100876 DOI: 10.21203/rs.3.rs-4356493/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
PINK1 loss-of-function mutations and exposure to mitochondrial toxins are causative for Parkinson's disease (PD) and Parkinsonism, respectively. We demonstrate that pathological α-synuclein deposition, the hallmark pathology of idiopathic PD, induces mitochondrial dysfunction, and impairs mitophagy as evidenced by the accumulation of the PINK1 substrate pS65-Ubiquitin (pUb). We discovered MTK458, a brain penetrant small molecule that binds to PINK1 and stabilizes its active complex, resulting in increased rates of mitophagy. Treatment with MTK458 mediates clearance of accumulated pUb and α-synuclein pathology in α-synuclein pathology models in vitro and in vivo. Our findings from preclinical PD models suggest that pharmacological activation of PINK1 warrants further clinical evaluation as a therapeutic strategy for disease modification in PD.
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8
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Baninameh Z, Watzlawik JO, Hou X, Richardson T, Kurchaba NW, Yan T, Di Florio DN, Fairweather D, Kang L, Nguyen JH, Kanekiyo T, Dickson DW, Noda S, Sato S, Hattori N, Goldberg MS, Ganley IG, Stauch KL, Fiesel FC, Springer W. Alterations of PINK1-PRKN signaling in mice during normal aging. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.29.591753. [PMID: 38746191 PMCID: PMC11092476 DOI: 10.1101/2024.04.29.591753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
The ubiquitin kinase-ligase pair PINK1-PRKN identifies and selectively marks damaged mitochondria for elimination via the autophagy-lysosome system (mitophagy). While this cytoprotective pathway has been extensively studied in vitro upon acute and complete depolarization of mitochondria, the significance of PINK1-PRKN mitophagy in vivo is less well established. Here we used a novel approach to study PINK1-PRKN signaling in different energetically demanding tissues of mice during normal aging. We demonstrate a generally increased expression of both genes and enhanced enzymatic activity with aging across tissue types. Collectively our data suggest a distinct regulation of PINK1-PRKN signaling under basal conditions with the most pronounced activation and flux of the pathway in mouse heart compared to brain or skeletal muscle. Our biochemical analyses complement existing mitophagy reporter readouts and provide an important baseline assessment in vivo, setting the stage for further investigations of the PINK1-PRKN pathway during stress and in relevant disease conditions.
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9
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Zhou QY, Ren C, Li JY, Wang L, Duan Y, Yao RQ, Tian YP, Yao YM. The crosstalk between mitochondrial quality control and metal-dependent cell death. Cell Death Dis 2024; 15:299. [PMID: 38678018 PMCID: PMC11055915 DOI: 10.1038/s41419-024-06691-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2023] [Revised: 04/16/2024] [Accepted: 04/17/2024] [Indexed: 04/29/2024]
Abstract
Mitochondria are the centers of energy and material metabolism, and they also serve as the storage and dispatch hubs of metal ions. Damage to mitochondrial structure and function can cause abnormal levels and distribution of metal ions, leading to cell dysfunction and even death. For a long time, mitochondrial quality control pathways such as mitochondrial dynamics and mitophagy have been considered to inhibit metal-induced cell death. However, with the discovery of new metal-dependent cell death including ferroptosis and cuproptosis, increasing evidence shows that there is a complex relationship between mitochondrial quality control and metal-dependent cell death. This article reviews the latest research results and mechanisms of crosstalk between mitochondrial quality control and metal-dependent cell death in recent years, as well as their involvement in neurodegenerative diseases, tumors and other diseases, in order to provide new ideas for the research and treatment of related diseases.
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Affiliation(s)
- Qi-Yuan Zhou
- Department of Emergency, the Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Chao Ren
- Department of Pulmonary and Critical Care Medicine, Beijing Chaoyang Hospital, Capital Medical University, Beijing, 100020, China
| | - Jing-Yan Li
- Department of Emergency, the Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China
| | - Lu Wang
- Department of Critical Care Medicine, the First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China
| | - Yu Duan
- Department of Critical Care Medicine, Affiliated Chenzhou Hospital (the First People's Hospital of Chenzhou), Southern Medical University, Chenzhou, 423000, China
| | - Ren-Qi Yao
- Department of General Surgery, the First Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.
- Medical Innovation Research Division, Translational Medicine Research Center and the Fourth Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.
| | - Ying-Ping Tian
- Department of Emergency, the Second Hospital of Hebei Medical University, Shijiazhuang, 050000, China.
| | - Yong-Ming Yao
- Medical Innovation Research Division, Translational Medicine Research Center and the Fourth Medical Center of Chinese PLA General Hospital, Beijing, 100853, China.
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10
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Yang K, Li T, Geng Y, Zou X, Peng F, Gao W. The role of mitophagy in the development of chronic kidney disease. PeerJ 2024; 12:e17260. [PMID: 38680884 PMCID: PMC11056108 DOI: 10.7717/peerj.17260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/28/2024] [Indexed: 05/01/2024] Open
Abstract
Chronic kidney disease (CKD) represents a significant global health concern, with renal fibrosis emerging as a prevalent and ultimate manifestation of this condition. The absence of targeted therapies presents an ongoing and substantial challenge. Accumulating evidence suggests that the integrity and functionality of mitochondria within renal tubular epithelial cells (RTECs) often become compromised during CKD development, playing a pivotal role in the progression of renal fibrosis. Mitophagy, a specific form of autophagy, assumes responsibility for eliminating damaged mitochondria to uphold mitochondrial equilibrium. Dysregulated mitophagy not only correlates with disrupted mitochondrial dynamics but also contributes to the advancement of renal fibrosis in CKD. While numerous studies have examined mitochondrial metabolism, ROS (reactive oxygen species) production, inflammation, and apoptosis in kidney diseases, the precise pathogenic mechanisms underlying mitophagy in CKD remain elusive. The exact mechanisms through which modulating mitophagy mitigates renal fibrosis, as well as its influence on CKD progression and prognosis, have not undergone systematic investigation. The role of mitophagy in AKI has been relatively clear, but the role of mitophagy in CKD is still rare. This article presents a comprehensive review of the current state of research on regulating mitophagy as a potential treatment for CKD. The objective is to provide fresh perspectives, viable strategies, and practical insights into CKD therapy, thereby contributing to the enhancement of human living conditions and patient well-being.
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Affiliation(s)
- Kexin Yang
- Department of Pathophysiology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong, China
| | - Ting Li
- Department of Pathophysiology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong, China
| | - Yingpu Geng
- School of Clinical Medicine, Shandong Second Medical University, Weifang, Shandong, China
| | - Xiangyu Zou
- Department of Pathophysiology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong, China
| | - Fujun Peng
- Department of Pathophysiology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong, China
| | - Wei Gao
- Department of Pathophysiology, School of Basic Medical Sciences, Shandong Second Medical University, Weifang, Shandong, China
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11
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Deng D, Wang M, Su Y, Fang H, Chen Y, Su Z. Iridium(III)-Based PD-L1 Agonist Regulates p62 and ATF3 for Enhanced Cancer Immunotherapy. J Med Chem 2024; 67:6810-6821. [PMID: 38613772 DOI: 10.1021/acs.jmedchem.4c00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2024]
Abstract
Anti-PD-L1 immunotherapy, a new lung cancer treatment, is limited to a few patients due to low PD-L1 expression and tumor immunosuppression. To address these challenges, the upregulation of PD-L1 has the potential to elevate the response rate and efficiency of anti-PD-L1 and alleviate the immunosuppression of the tumor microenvironment. Herein, we developed a novel usnic acid-derived Iridium(III) complex, Ir-UA, that boosts PD-L1 expression and converts "cold tumors" to "hot". Subsequently, we administered Ir-UA combined with anti-PD-L1 in mice, which effectively inhibited tumor growth and promoted CD4+ and CD8+ T cell infiltration. To our knowledge, Ir-UA is the first iridium-based complex to stimulate the expression of PD-L1 by explicitly regulating its transcription factors, which not only provides a promising platform for immune checkpoint blockade but, more importantly, provides an effective treatment strategy for patients with low PD-L1 expression.
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Affiliation(s)
- Dongping Deng
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Mengmeng Wang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
| | - Yan Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- Department of Rheumatology and Immunology, Jinling Hospital, Medical School of Nanjing University, Nanjing 210002, China
| | - Hongbao Fang
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Yuncong Chen
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Chemistry and Biomedicine Innovation Center (ChemBIC), Nanjing University, Nanjing 210023, China
| | - Zhi Su
- Jiangsu Collaborative Innovation Center of Biomedical Functional Materials, College of Chemistry and Materials Science, Nanjing Normal University, Nanjing 210023, China
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12
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Oliveira AN, Memme JM, Wong J, Hood DA. Dimorphic effect of TFE3 in determining mitochondrial and lysosomal content in muscle following denervation. Skelet Muscle 2024; 14:7. [PMID: 38643162 PMCID: PMC11031958 DOI: 10.1186/s13395-024-00339-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Accepted: 03/17/2024] [Indexed: 04/22/2024] Open
Abstract
BACKGROUND Muscle atrophy is a common consequence of the loss of innervation and is accompanied by mitochondrial dysfunction. Mitophagy is the adaptive process through which damaged mitochondria are removed via the lysosomes, which are regulated in part by the transcription factor TFE3. The role of lysosomes and TFE3 are poorly understood in muscle atrophy, and the effect of biological sex is widely underreported. METHODS Wild-type (WT) mice, along with mice lacking TFE3 (KO), a transcriptional regulator of lysosomal and autophagy-related genes, were subjected to unilateral sciatic nerve denervation for up to 7 days, while the contralateral limb was sham-operated and served as an internal control. A subset of animals was treated with colchicine to capture mitophagy flux. RESULTS WT females exhibited elevated oxygen consumption rates during active respiratory states compared to males, however this was blunted in the absence of TFE3. Females exhibited higher mitophagy flux rates and greater lysosomal content basally compared to males that was independent of TFE3 expression. Following denervation, female mice exhibited less muscle atrophy compared to male counterparts. Intriguingly, this sex-dependent muscle sparing was lost in the absence of TFE3. Denervation resulted in 45% and 27% losses of mitochondrial content in WT and KO males respectively, however females were completely protected against this decline. Decreases in mitochondrial function were more severe in WT females compared to males following denervation, as ROS emission was 2.4-fold higher. In response to denervation, LC3-II mitophagy flux was reduced by 44% in females, likely contributing to the maintenance of mitochondrial content and elevated ROS emission, however this response was dysregulated in the absence of TFE3. While both males and females exhibited increased lysosomal content following denervation, this response was augmented in females in a TFE3-dependent manner. CONCLUSIONS Females have higher lysosomal content and mitophagy flux basally compared to males, likely contributing to the improved mitochondrial phenotype. Denervation-induced mitochondrial adaptations were sexually dimorphic, as females preferentially preserve content at the expense of function, while males display a tendency to maintain mitochondrial function. Our data illustrate that TFE3 is vital for the sex-dependent differences in mitochondrial function, and in determining the denervation-induced atrophy phenotype.
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Affiliation(s)
- Ashley N Oliveira
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - Jonathan M Memme
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - Jenna Wong
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada
| | - David A Hood
- School of Kinesiology and Health Science Muscle Health Research Centre, York University, 4700 Keele St, Toronto, ON, M3J 1P3, Canada.
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13
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Boengler K, Eickelmann C, Kleinbongard P. Mitochondrial Kinase Signaling for Cardioprotection. Int J Mol Sci 2024; 25:4491. [PMID: 38674076 PMCID: PMC11049936 DOI: 10.3390/ijms25084491] [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: 03/01/2024] [Revised: 04/15/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
Myocardial ischemia/reperfusion injury is reduced by cardioprotective adaptations such as local or remote ischemic conditioning. The cardioprotective stimuli activate signaling cascades, which converge on mitochondria and maintain the function of the organelles, which is critical for cell survival. The signaling cascades include not only extracellular molecules that activate sarcolemmal receptor-dependent or -independent protein kinases that signal at the plasma membrane or in the cytosol, but also involve kinases, which are located to or within mitochondria, phosphorylate mitochondrial target proteins, and thereby modify, e.g., respiration, the generation of reactive oxygen species, calcium handling, mitochondrial dynamics, mitophagy, or apoptosis. In the present review, we give a personal and opinionated overview of selected protein kinases, localized to/within myocardial mitochondria, and summarize the available data on their role in myocardial ischemia/reperfusion injury and protection from it. We highlight the regulation of mitochondrial function by these mitochondrial protein kinases.
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Affiliation(s)
- Kerstin Boengler
- Institute of Physiology, Justus-Liebig University, 35392 Giessen, Germany
| | - Chantal Eickelmann
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, 45147 Essen, Germany; (C.E.); (P.K.)
| | - Petra Kleinbongard
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Essen Medical School, 45147 Essen, Germany; (C.E.); (P.K.)
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14
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Luo P, An Y, He J, Xing X, Zhang Q, Liu X, Chen Y, Yuan H, Chen J, Wong YK, Huang J, Gong Z, Du Q, Xiao W, Wang J. Icaritin with autophagy/mitophagy inhibitors synergistically enhances anticancer efficacy and apoptotic effects through PINK1/Parkin-mediated mitophagy in hepatocellular carcinoma. Cancer Lett 2024; 587:216621. [PMID: 38242198 DOI: 10.1016/j.canlet.2024.216621] [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: 11/04/2023] [Revised: 12/15/2023] [Accepted: 01/04/2024] [Indexed: 01/21/2024]
Abstract
Hepatocellular carcinoma (HCC) is among the deadliest malignancies worldwide and still a pressing clinical problem. Icaritin, a natural compound obtained from the Epimedium genus plant, has garnered significant attention as a potential therapeutic drug for HCC therapies. Mitophagy plays a crucial role in mitochondrial quality control through efficiently eliminating damaged mitochondria. However, the specific mechanisms of the interplay between mitophagy and apoptosis in HCC is still unclear. We aimed to explore the cross-talk between icaritin-induced mitophagy and apoptosis in HCC cells and investigate its potential mechanisms. Firstly, we confirmed that icaritin inhibits proliferation and migration while inducing mitochondrial damage and reactive oxygen species (ROS) production in HCC cells. Secondly, based on proteomics analysis, we discovered that icaritin inhibits the growth of tumor cells and disrupts their mitochondrial homeostasis through the regulation of both mitophagy and apoptosis. Thirdly, icaritin causes mitophagy mediated by PINK1-Parkin signaling via regulating feedforward loop. Furthermore, knockdown of PINK1/Parkin leads to inhibition of mitophagy, which promotes cell death induced by icaritin in HCC cells. Finally, autophagy/mitophagy inhibitors remarkably enhance icaritin-induced cell death and anticancer efficacy. Collectively, our findings reveal that icaritin suppresses growth, proliferation and migration of HCC cell through induction of mitophagy and apoptosis, while inhibition of mitophagy significantly increased the anti-cancer and pro-apoptotic effects of icaritin, indicating that targeting autophagy or mitophagy is a novel approach to overcome drug resistance and enhance anticancer therapies.
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Affiliation(s)
- Piao Luo
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Yehai An
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China; State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, 4 Beijing Road, Guiyang, 550004, China
| | - Jingqian He
- The Second School of Clinical Medicine, Guangzhou University of Chinese Medicine, Guangzhou, 510405, China
| | - Xuefeng Xing
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Qian Zhang
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China
| | - Xueying Liu
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China
| | - Yu Chen
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China
| | - Haitao Yuan
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China
| | - Junhui Chen
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China
| | - Yin-Kwan Wong
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China
| | - Jingnan Huang
- Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China
| | - Zipeng Gong
- State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Provincial Key Laboratory of Pharmaceutics, Guizhou Medical University, 4 Beijing Road, Guiyang, 550004, China.
| | - Qingfeng Du
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China.
| | - Wei Xiao
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China; Key Laboratory of Glucolipid Metabolic Disorder, Ministry of Education, Guangdong Pharmaceutical University, Guangzhou, 510006, China.
| | - Jigang Wang
- School of Traditional Chinese Medicine and School of Pharmaceutical Sciences, Southern Medical University, Guangzhou, 510515, Guangdong, China; State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs, Artemisinin Research Center, and Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, 100700, China; Department of Pulmonary and Critical Care Medicine, Shenzhen Institute of Respiratory Diseases, and Shenzhen Clinical Research Centre for Geriatrics, Shenzhen People's Hospital, First Affiliated Hospital of Southern University of Science and Technology, Second Clinical Medical College of Jinan University, Shenzhen, 518020, Guangdong, China; State Key Laboratory of Antiviral Drugs, School of Pharmacy, Henan University, Kaifeng, 475004, China; Department of Oncology, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China.
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15
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Sharma K, Kishore A, Lechado-Terradas A, Passannanti R, Raimondi F, Sturm M, Sreelatha AAK, Puthenveedu DK, Sarma G, Casadei N, Krüger R, Gasser T, Kahle P, Riess O, Fitzgerald JC, Sharma M. A Novel PINK1 p.F385S Loss-of-Function Mutation in an Indian Family with Parkinson's Disease. Mov Disord 2024. [PMID: 38586902 DOI: 10.1002/mds.29792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Revised: 02/01/2024] [Accepted: 03/11/2024] [Indexed: 04/09/2024] Open
Abstract
BACKGROUND Most Parkinson's disease (PD) loci have shown low prevalence in the Indian population, highlighting the need for further research. OBJECTIVE The aim of this study was to characterize a novel phosphatase tensin homolog-induced serine/threonine kinase 1 (PINK1) mutation causing PD in an Indian family. METHODS Exome sequencing of a well-characterized Indian family with PD. A novel PINK1 mutation was studied by in silico modeling using AlphaFold2, expression of mutant PINK1 in human cells depleted of functional endogenous PINK1, followed by quantitative image analysis and biochemical assessment. RESULTS We identified a homozygous chr1:20648535-20648535 T>C on GRCh38 (p.F385S) mutation in exon 6 of PINK1, which was absent in 1029 genomes from India and in other known databases. PINK1 F385S lies within the highly conserved Deutsche Forschungsgemeinschaft (DFG) motif, destabilizes its active state, and impairs phosphorylation of ubiquitin at serine 65 and proper engagement of parkin upon mitochondrial depolarization. CONCLUSIONS We characterized a novel nonconservative mutation in the DFG motif of PINK1, which causes loss of its ubiquitin kinase activity and inhibition of mitophagy. © 2024 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
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Affiliation(s)
- Karan Sharma
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Asha Kishore
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
- Parkinson and Movement Disorder Centre, Aster Medicity, Kochi, India
| | - Anna Lechado-Terradas
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | | | | | - Marc Sturm
- Institute of Medical Genetics and Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Ashwin Ashok Kumar Sreelatha
- Centre for Genetic Epidemiology, Institute for Clinical Epidemiology and Applied Biometry, University of Tübingen, Tübingen, Germany
| | - Divya Kalikavila Puthenveedu
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Gangadhara Sarma
- Department of Neurology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Thiruvananthapuram, India
| | - Nicolas Casadei
- Institute of Medical Genetics and Applied Genomics & Core Facility for Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Rejko Krüger
- Translational Neuroscience, Luxembourg Center for Systems Biomedicine, University of Luxembourg, Luxembourg, Transversal Translational Medicine, Luxembourg Institute of Health, Strassen, Luxembourg & Centre Hospitalier de Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Thomas Gasser
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- German Centre for Neurodegenerative Diseases, Tübingen, Germany
| | - Philipp Kahle
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
- German Centre for Neurodegenerative Diseases, Tübingen, Germany
- Department of Biochemistry, University of Tübingen, Tübingen, Germany
| | - Olaf Riess
- Institute of Medical Genetics and Applied Genomics & Core Facility for Applied Genomics, University of Tübingen, Tübingen, Germany
| | - Julia C Fitzgerald
- Department of Neurodegeneration, Hertie Institute for Clinical Brain Research, University of Tübingen, Tübingen, Germany
| | - Manu Sharma
- Centre for Genetic Epidemiology, Institute for Clinical Epidemiology and Applied Biometry, University of Tübingen, Tübingen, Germany
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16
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Hull A, Atilano ML, Gergi L, Kinghorn KJ. Lysosomal storage, impaired autophagy and innate immunity in Gaucher and Parkinson's diseases: insights for drug discovery. Philos Trans R Soc Lond B Biol Sci 2024; 379:20220381. [PMID: 38368939 PMCID: PMC10874704 DOI: 10.1098/rstb.2022.0381] [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: 03/08/2023] [Accepted: 11/08/2023] [Indexed: 02/20/2024] Open
Abstract
Impairment of autophagic-lysosomal pathways is increasingly being implicated in Parkinson's disease (PD). GBA1 mutations cause the lysosomal storage disorder Gaucher disease (GD) and are the commonest known genetic risk factor for PD. GBA1 mutations have been shown to cause autophagic-lysosomal impairment. Defective autophagic degradation of unwanted cellular constituents is associated with several pathologies, including loss of normal protein homeostasis, particularly of α-synuclein, and innate immune dysfunction. The latter is observed both peripherally and centrally in PD and GD. Here, we will discuss the mechanistic links between autophagy and immune dysregulation, and the possible role of these pathologies in communication between the gut and brain in these disorders. Recent work in a fly model of neuronopathic GD (nGD) revealed intestinal autophagic defects leading to gastrointestinal dysfunction and immune activation. Rapamycin treatment partially reversed the autophagic block and reduced immune activity, in association with increased survival and improved locomotor performance. Alterations in the gut microbiome are a critical driver of neuroinflammation, and studies have revealed that eradication of the microbiome in nGD fly and mouse models of PD ameliorate brain inflammation. Following these observations, lysosomal-autophagic pathways, innate immune signalling and microbiome dysbiosis are discussed as potential therapeutic targets in PD and GD. This article is part of a discussion meeting issue 'Understanding the endo-lysosomal network in neurodegeneration'.
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Affiliation(s)
- Alexander Hull
- Department of Genetics, Evolution & Environment, Institute of Healthy Ageing, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Magda L Atilano
- Department of Genetics, Evolution & Environment, Institute of Healthy Ageing, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Laith Gergi
- Department of Genetics, Evolution & Environment, Institute of Healthy Ageing, Darwin Building, Gower Street, London WC1E 6BT, UK
| | - Kerri J Kinghorn
- Department of Genetics, Evolution & Environment, Institute of Healthy Ageing, Darwin Building, Gower Street, London WC1E 6BT, UK
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17
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Patel RS, Pannala NM, Das C. Reading and Writing the Ubiquitin Code Using Genetic Code Expansion. Chembiochem 2024:e202400190. [PMID: 38588469 DOI: 10.1002/cbic.202400190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/04/2024] [Accepted: 04/08/2024] [Indexed: 04/10/2024]
Abstract
Deciphering ubiquitin proteoform signaling and its role in disease has been a long-standing challenge in the field. The effects of ubiquitin modifications, its relation to ubiquitin-related machineries, and its signaling output has been particularly limited by its reconstitution and means of characterization. Advances in genetic code expansion have contributed towards addressing these challenges by precision incorporation of unnatural amino acids through site selective codon suppression. This review discusses recent advances in studying the 'writers', 'readers', and 'erasers' of the ubiquitin code using genetic code expansion. Highlighting strategies towards genetically encoded protein ubiquitination, ubiquitin phosphorylation, acylation, and finally surveying ubiquitin interactions, we strive to bring attention to this unique approach towards addressing a widespread proteoform problem.
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Affiliation(s)
- Rishi S Patel
- Department of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, IN 47907, USA
| | - Nipuni M Pannala
- Department of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, IN 47907, USA
| | - Chittaranjan Das
- Department of Chemistry, Purdue University, 560 Oval Dr., West Lafayette, IN 47907, USA
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18
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Rasool S, Shomali T, Truong L, Croteau N, Veyron S, Bustillos BA, Springer W, Fiesel FC, Trempe JF. Identification and structural characterization of small molecule inhibitors of PINK1. Sci Rep 2024; 14:7739. [PMID: 38565869 PMCID: PMC10987619 DOI: 10.1038/s41598-024-58285-3] [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: 12/15/2023] [Accepted: 03/27/2024] [Indexed: 04/04/2024] Open
Abstract
Mutations in PINK1 and Parkin cause early-onset Parkinson's Disease (PD). PINK1 is a kinase which functions as a mitochondrial damage sensor and initiates mitochondrial quality control by accumulating on the damaged organelle. There, it phosphorylates ubiquitin, which in turn recruits and activates Parkin, an E3 ubiquitin ligase. Ubiquitylation of mitochondrial proteins leads to the autophagic degradation of the damaged organelle. Pharmacological modulation of PINK1 constitutes an appealing avenue to study its physiological function and develop therapeutics. In this study, we used a thermal shift assay with insect PINK1 to identify small molecules that inhibit ATP hydrolysis and ubiquitin phosphorylation. PRT062607, an SYK inhibitor, is the most potent inhibitor in our screen and inhibits both insect and human PINK1, with an IC50 in the 0.5-3 µM range in HeLa cells and dopaminergic neurons. The crystal structures of insect PINK1 bound to PRT062607 or CYC116 reveal how the compounds interact with the ATP-binding pocket. PRT062607 notably engages with the catalytic aspartate and causes a destabilization of insert-2 at the autophosphorylation dimer interface. While PRT062607 is not selective for PINK1, it provides a scaffold for the development of more selective and potent inhibitors of PINK1 that could be used as chemical probes.
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Affiliation(s)
- Shafqat Rasool
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada
| | - Tara Shomali
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada
| | - Luc Truong
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada
| | - Nathalie Croteau
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada
| | - Simon Veyron
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada
| | | | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, 32224, USA
| | - Fabienne C Fiesel
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL, 32224, USA
| | - Jean-François Trempe
- Department of Pharmacology & Therapeutics, Centre de Recherche en Biologie Structurale, and Structural Genomics Consortium, McGill University, 3655 Prom Sir William Osler, Montréal, QC, H3G 1Y6, Canada.
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19
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Liang H, Ma Z, Zhong W, Liu J, Sugimoto K, Chen H. Regulation of mitophagy and mitochondrial function: Natural compounds as potential therapeutic strategies for Parkinson's disease. Phytother Res 2024; 38:1838-1862. [PMID: 38356178 DOI: 10.1002/ptr.8156] [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: 09/20/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/16/2024]
Abstract
Mitochondrial damage is associated with the development of Parkinson's disease (PD), indicating that mitochondrial-targeted treatments could hold promise as disease-modifying approaches for PD. Notably, natural compounds have demonstrated the ability to modulate mitochondrial-related processes. In this review article, we discussed the possible neuroprotective mechanisms of natural compounds against PD in modulating mitophagy and mitochondrial function. A comprehensive literature search on natural compounds related to the treatment of PD by regulating mitophagy and mitochondrial function was conducted from PubMed, Web of Science and Chinese National Knowledge Infrastructure databases from their inception until April 2023. We summarize recent advancements in mitophagy's molecular mechanisms, including upstream and downstream processes, and its relationship with PD-related genes or proteins. Importantly, we highlight how natural compounds can therapeutically regulate various mitochondrial processes through multiple targets and pathways to alleviate oxidative stress, neuroinflammation, Lewy's body aggregation and apoptosis, which are key contributors to PD pathogenesis. Unlike the single-target strategy of modern medicine, natural compounds provide neuroprotection against PD by modulating various mitochondrial-related processes, including ameliorating mitophagy by targeting the PINK1/parkin pathway, the NIX/BNIP3 pathway, and autophagosome formation (i.e., LC3 and p62). Given the prevalence of mitochondrial damage in various neurodegenerative diseases, exploring the exact mechanism of natural compounds on mitophagy and mitochondrial dysfunction could shed light on the development of highly effective disease-modifying or adjuvant therapies targeting PD and other neurodegenerative disorders.
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Affiliation(s)
- Hao Liang
- Department of Acupuncture, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
| | - Zhenwang Ma
- Department of Acupuncture, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
| | - Wei Zhong
- Department of Rheumatology and Immunology, Affiliated Qiqihar Hospital, Southern Medical University, Qiqihar, China
| | - Jia Liu
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, China
| | - Kazuo Sugimoto
- Department of Neurology, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, China
- Institute for Brain Disorders, Beijing University of Chinese Medicine, Beijing, China
| | - Hong Chen
- Department of Acupuncture, Heilongjiang Academy of Traditional Chinese Medicine, Harbin, China
- Department of TCM Geriatric, Southern Medical University, Guangzhou, China
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20
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Patrignoni L, Hurtier A, Orlacchio R, Joushomme A, Poulletier de Gannes F, Lévêque P, Arnaud-Cormos D, Revzani HR, Mahfouf W, Garenne A, Percherancier Y, Lagroye I. Evaluation of mitochondrial stress following ultraviolet radiation and 5G radiofrequency field exposure in human skin cells. Bioelectromagnetics 2024; 45:110-129. [PMID: 38115173 DOI: 10.1002/bem.22495] [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: 09/25/2023] [Revised: 11/14/2023] [Accepted: 11/20/2023] [Indexed: 12/21/2023]
Abstract
Whether human cells are impacted by environmental electromagnetic fields (EMF) is still a matter of debate. With the deployment of the fifth generation (5G) of mobile communication technologies, the carrier frequency is increasing and the human skin becomes the main biological target. Here, we evaluated the impact of 5G-modulated 3.5 GHz radiofrequency (RF) EMF on mitochondrial stress in human fibroblasts and keratinocytes that were exposed for 24 h at specific absorption rate of 0.25, 1, and 4 W/kg. We assessed cell viability, mitochondrial reactive oxygen species (ROS) production, and membrane polarization. Knowing that human skin is the main target of environmental ultraviolet (UV), using the same read-out, we investigated whether subsequent exposure to 5G signal could alter the capacity of UV-B to damage skin cells. We found a statistically significant reduction in mitochondrial ROS concentration in fibroblasts exposed to 5G signal at 1 W/kg. On the contrary, the RF exposure slightly but statistically significantly enhanced the effects of UV-B radiation specifically in keratinocytes at 0.25 and 1 W/kg. No effect was found on mitochondrial membrane potential or apoptosis in any cell types or exposure conditions suggesting that the type and amplitude of the observed effects are very punctual.
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Affiliation(s)
- Lorenza Patrignoni
- Paris Sciences et Lettres Research University-École Pratique des Hautes Études (EPHE), IMS laboratory - SANE team, Paris, France
| | - Annabelle Hurtier
- Univ. Bordeaux, CNRS, IMS laboratory / UMR 5218, SANE Team, Talence, France
| | - Rosa Orlacchio
- Paris Sciences et Lettres Research University-École Pratique des Hautes Études (EPHE), IMS laboratory - SANE team, Paris, France
| | | | | | - Philippe Lévêque
- Univ. Limoges, CNRS, XLIM / UMR 7252, RF-ELITE team, Limoges, France
| | | | | | - Walid Mahfouf
- Univ. Bordeaux, Inserm, BRIC / UMR 1312, TRIO2 team, Bordeaux, France
| | - André Garenne
- Univ. Bordeaux, CNRS, IMS laboratory / UMR 5218, SANE Team, Talence, France
| | - Yann Percherancier
- Univ. Bordeaux, CNRS, IMS laboratory / UMR 5218, SANE Team, Talence, France
| | - Isabelle Lagroye
- Paris Sciences et Lettres Research University-École Pratique des Hautes Études (EPHE), IMS laboratory - SANE team, Paris, France
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21
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Zhong R, Rua MT, Wei-LaPierre L. Targeting mitochondrial Ca 2+ uptake for the treatment of amyotrophic lateral sclerosis. J Physiol 2024; 602:1519-1549. [PMID: 38010626 PMCID: PMC11032238 DOI: 10.1113/jp284143] [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: 09/06/2023] [Accepted: 10/31/2023] [Indexed: 11/29/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a rare adult-onset neurodegenerative disease characterized by progressive motor neuron (MN) loss, muscle denervation and paralysis. Over the past several decades, researchers have made tremendous efforts to understand the pathogenic mechanisms underpinning ALS, with much yet to be resolved. ALS is described as a non-cell autonomous condition with pathology detected in both MNs and non-neuronal cells, such as glial cells and skeletal muscle. Studies in ALS patient and animal models reveal ubiquitous abnormalities in mitochondrial structure and function, and disturbance of intracellular calcium homeostasis in various tissue types, suggesting a pivotal role of aberrant mitochondrial calcium uptake and dysfunctional calcium signalling cascades in ALS pathogenesis. Calcium signalling and mitochondrial dysfunction are intricately related to the manifestation of cell death contributing to MN loss and skeletal muscle dysfunction. In this review, we discuss the potential contribution of intracellular calcium signalling, particularly mitochondrial calcium uptake, in ALS pathogenesis. Functional consequences of excessive mitochondrial calcium uptake and possible therapeutic strategies targeting mitochondrial calcium uptake or the mitochondrial calcium uniporter, the main channel mediating mitochondrial calcium influx, are also discussed.
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Affiliation(s)
- Renjia Zhong
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL, 32611
- Department of Emergency Medicine, the First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China, 110001
| | - Michael T. Rua
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL, 32611
| | - Lan Wei-LaPierre
- Department of Applied Physiology and Kinesiology, College of Health and Human Performance, University of Florida, Gainesville, FL, 32611
- Myology Institute, University of Florida, Gainesville, FL 32611
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22
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Forte M, D'Ambrosio L, Schiattarella GG, Salerno N, Perrone MA, Loffredo FS, Bertero E, Pilichou K, Manno G, Valenti V, Spadafora L, Bernardi M, Simeone B, Sarto G, Frati G, Perrino C, Sciarretta S. Mitophagy modulation for the treatment of cardiovascular diseases. Eur J Clin Invest 2024:e14199. [PMID: 38530070 DOI: 10.1111/eci.14199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2024] [Revised: 03/15/2024] [Accepted: 03/16/2024] [Indexed: 03/27/2024]
Abstract
BACKGROUND Defects of mitophagy, the selective form of autophagy for mitochondria, are commonly observed in several cardiovascular diseases and represent the main cause of mitochondrial dysfunction. For this reason, mitophagy has emerged as a novel and potential therapeutic target. METHODS In this review, we discuss current evidence about the biological significance of mitophagy in relevant preclinical models of cardiac and vascular diseases, such as heart failure, ischemia/reperfusion injury, metabolic cardiomyopathy and atherosclerosis. RESULTS Multiple studies have shown that cardiac and vascular mitophagy is an adaptive mechanism in response to stress, contributing to cardiovascular homeostasis. Mitophagy defects lead to cell death, ultimately impairing cardiac and vascular function, whereas restoration of mitophagy by specific compounds delays disease progression. CONCLUSIONS Despite previous efforts, the molecular mechanisms underlying mitophagy activation in response to stress are not fully characterized. A comprehensive understanding of different forms of mitophagy active in the cardiovascular system is extremely important for the development of new drugs targeting this process. Human studies evaluating mitophagy abnormalities in patients at high cardiovascular risk also represent a future challenge.
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Affiliation(s)
| | - Luca D'Ambrosio
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Gabriele G Schiattarella
- Max Rubner Center for Cardiovascular Metabolic Renal Research, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University of Naples, Naples, Italy
- DZHK (German Centre for Cardiovascular Research), Partner Site Berlin, Berlin, Germany
| | - Nadia Salerno
- Division of Cardiology, Department of Medical and Surgical Sciences, Magna Graecia University, Catanzaro, Italy
| | - Marco Alfonso Perrone
- Division of Cardiology and CardioLab, Department of Clinical Sciences and Translational Medicine, University of Rome Tor Vergata, Rome, Italy
- Clinical Pathways and Epidemiology Unit, Bambino Gesù Children's Hospital IRCCS, Rome, Italy
| | - Francesco S Loffredo
- Division of Cardiology, Department of Translational Medical Sciences, University of Campania "L. Vanvitelli", Naples, Italy
| | - Edoardo Bertero
- Department of Internal Medicine, University of Genova, Genoa, Italy
- Cardiovascular Disease Unit, IRCCS Ospedale Policlinico San Martino-Italian IRCCS Cardiology Network, Genoa, Italy
| | - Kalliopi Pilichou
- Department of Cardiac-Thoracic-Vascular Sciences and Public Health, University of Padova, Padova, Italy
| | - Girolamo Manno
- Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE) "G. D'Alessandro", University of Palermo, Palermo, Italy
| | - Valentina Valenti
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
- ICOT Istituto Marco Pasquali, Latina, Italy
| | | | - Marco Bernardi
- Department of Clinical, Internal Medicine, Anesthesiology and Cardiovascular Sciences, Sapienza University, Rome, Italy
| | | | | | - Giacomo Frati
- IRCCS Neuromed, Pozzilli, Italy
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
| | - Cinzia Perrino
- Division of Cardiology, Department of Advanced Biomedical Sciences, Federico II University of Naples, Naples, Italy
| | - Sebastiano Sciarretta
- IRCCS Neuromed, Pozzilli, Italy
- Department of Medical-Surgical Sciences and Biotechnologies, Sapienza University of Rome, Latina, Italy
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23
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Islam NN, Weber CA, Coban M, Cocker LT, Fiesel FC, Springer W, Caulfield TR. In Silico Investigation of Parkin-Activating Mutations Using Simulations and Network Modeling. Biomolecules 2024; 14:365. [PMID: 38540783 PMCID: PMC10968616 DOI: 10.3390/biom14030365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/14/2024] [Accepted: 03/15/2024] [Indexed: 05/05/2024] Open
Abstract
Complete loss-of-function mutations in the PRKN gene are a major cause of early-onset Parkinson's disease (PD). PRKN encodes the Parkin protein, an E3 ubiquitin ligase that works in conjunction with the ubiquitin kinase PINK1 in a distinct quality control pathway to tag damaged mitochondria for autophagic clearance, i.e., mitophagy. According to previous structural investigations, Parkin protein is typically kept in an inactive conformation via several intramolecular, auto-inhibitory interactions. Here, we performed molecular dynamics simulations (MDS) to provide insights into conformational changes occurring during the de-repression of Parkin and the gain of catalytic activity. We analyzed four different Parkin-activating mutations that are predicted to disrupt certain aspects of its auto-inhibition. All four variants showed greater conformational motions compared to wild-type protein, as well as differences in distances between domain interfaces and solvent-accessible surface area, which are thought to play critical roles as Parkin gains catalytic activity. Our findings reveal that the studied variants exert a notable influence on Parkin activation as they alter the opening of its closed inactive structure, a finding that is supported by recent structure- and cell-based studies. These findings not only helped further characterize the hyperactive variants but overall improved our understanding of Parkin's catalytic activity and nominated targets within Parkin's structure for potential therapeutic designs.
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Affiliation(s)
- Naeyma N. Islam
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
| | - Caleb A. Weber
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
| | - Matt Coban
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
| | - Liam T. Cocker
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
| | - Fabienne C. Fiesel
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Thomas R. Caulfield
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA; (N.N.I.); (C.A.W.); (M.C.); (F.C.F.)
- Department of Neurosurgery, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
- Department of Cancer Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
- Department of Biochemistry & Molecular Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
- Department of Computational Biology, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
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24
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Campbell D, Zuryn S. The mechanisms and roles of mitochondrial dynamics in C. elegans. Semin Cell Dev Biol 2024; 156:266-275. [PMID: 37919144 DOI: 10.1016/j.semcdb.2023.10.006] [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: 06/18/2023] [Revised: 10/15/2023] [Accepted: 10/26/2023] [Indexed: 11/04/2023]
Abstract
If mitochondria are the powerhouses of the cell, then mitochondrial dynamics are the power grid that regulates how that energy output is directed and maintained in response to unique physiological demands. Fission and fusion dynamics are highly regulated processes that fine-tune the mitochondrial networks of cells to enable appropriate responses to intrinsic and extrinsic stimuli, thereby maintaining cellular and organismal homeostasis. These dynamics shape many aspects of an organism's healthspan including development, longevity, stress resistance, immunity, and response to disease. In this review, we discuss the latest findings regarding the mechanisms and roles of mitochondrial dynamics by focussing on the nematode Caenorhabditis elegans. Whole live-animal studies in C. elegans have enabled a true organismal-level understanding of the impact that mitochondrial dynamics play in homeostasis over a lifetime.
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Affiliation(s)
- Daniel Campbell
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Steven Zuryn
- Clem Jones Centre for Ageing Dementia Research, Queensland Brain Institute, The University of Queensland, Brisbane, QLD 4072, Australia.
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25
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Yamano K, Sawada M, Kikuchi R, Nagataki K, Kojima W, Endo R, Kinefuchi H, Sugihara A, Fujino T, Watanabe A, Tanaka K, Hayashi G, Murakami H, Matsuda N. Optineurin provides a mitophagy contact site for TBK1 activation. EMBO J 2024; 43:754-779. [PMID: 38287189 PMCID: PMC10907724 DOI: 10.1038/s44318-024-00036-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/09/2024] [Accepted: 01/11/2024] [Indexed: 01/31/2024] Open
Abstract
Tank-binding kinase 1 (TBK1) is a Ser/Thr kinase that is involved in many intracellular processes, such as innate immunity, cell cycle, and apoptosis. TBK1 is also important for phosphorylating the autophagy adaptors that mediate the selective autophagic removal of damaged mitochondria. However, the mechanism by which PINK1-Parkin-mediated mitophagy activates TBK1 remains largely unknown. Here, we show that the autophagy adaptor optineurin (OPTN) provides a unique platform for TBK1 activation. Both the OPTN-ubiquitin and the OPTN-pre-autophagosomal structure (PAS) interaction axes facilitate assembly of the OPTN-TBK1 complex at a contact sites between damaged mitochondria and the autophagosome formation sites. At this assembly point, a positive feedback loop for TBK1 activation is initiated that accelerates hetero-autophosphorylation of the protein. Expression of monobodies engineered here to bind OPTN impaired OPTN accumulation at contact sites, as well as the subsequent activation of TBK1, thereby inhibiting mitochondrial degradation. Taken together, these data show that a positive and reciprocal relationship between OPTN and TBK1 initiates autophagosome biogenesis on damaged mitochondria.
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Affiliation(s)
- Koji Yamano
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan.
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan.
| | - Momoha Sawada
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Reika Kikuchi
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Kafu Nagataki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Waka Kojima
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Ryu Endo
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hiroki Kinefuchi
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Atsushi Sugihara
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Tomoshige Fujino
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Aiko Watanabe
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Keiji Tanaka
- Protein Metabolism Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
| | - Gosuke Hayashi
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Hiroshi Murakami
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, 464-8603, Japan
| | - Noriyuki Matsuda
- Department of Biomolecular Pathogenesis, Medical Research Institute, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
- Ubiquitin Project, Tokyo Metropolitan Institute of Medical Science, 2-1-6 Kamikitazawa, Setagaya-ku, Tokyo, 156-8506, Japan
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26
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Hees JT, Wanderoy S, Lindner J, Helms M, Murali Mahadevan H, Harbauer AB. Insulin signalling regulates Pink1 mRNA localization via modulation of AMPK activity to support PINK1 function in neurons. Nat Metab 2024; 6:514-530. [PMID: 38504131 PMCID: PMC10963278 DOI: 10.1038/s42255-024-01007-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Accepted: 02/06/2024] [Indexed: 03/21/2024]
Abstract
Mitochondrial quality control failure is frequently observed in neurodegenerative diseases. The detection of damaged mitochondria by stabilization of PTEN-induced kinase 1 (PINK1) requires transport of Pink1 messenger RNA (mRNA) by tethering it to the mitochondrial surface. Here, we report that inhibition of AMP-activated protein kinase (AMPK) by activation of the insulin signalling cascade prevents Pink1 mRNA binding to mitochondria. Mechanistically, AMPK phosphorylates the RNA anchor complex subunit SYNJ2BP within its PDZ domain, a phosphorylation site that is necessary for its interaction with the RNA-binding protein SYNJ2. Notably, loss of mitochondrial Pink1 mRNA association upon insulin addition is required for PINK1 protein activation and its function as a ubiquitin kinase in the mitophagy pathway, thus placing PINK1 function under metabolic control. Induction of insulin resistance in vitro by the key genetic Alzheimer risk factor apolipoprotein E4 retains Pink1 mRNA at the mitochondria and prevents proper PINK1 activity, especially in neurites. Our results thus identify a metabolic switch controlling Pink1 mRNA localization and PINK1 activity via insulin and AMPK signalling in neurons and propose a mechanistic connection between insulin resistance and mitochondrial dysfunction.
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Affiliation(s)
- J Tabitha Hees
- TUM Medical Graduate Center, Technical University of Munich, Munich, Germany
- Max Planck Institute for Biological Intelligence, Martinsried, Germany
| | - Simone Wanderoy
- TUM Medical Graduate Center, Technical University of Munich, Munich, Germany
- Max Planck Institute for Biological Intelligence, Martinsried, Germany
| | - Jana Lindner
- Max Planck Institute for Biological Intelligence, Martinsried, Germany
| | - Marlena Helms
- Max Planck Institute for Biological Intelligence, Martinsried, Germany
| | - Hariharan Murali Mahadevan
- TUM Medical Graduate Center, Technical University of Munich, Munich, Germany
- Max Planck Institute for Biological Intelligence, Martinsried, Germany
| | - Angelika B Harbauer
- Max Planck Institute for Biological Intelligence, Martinsried, Germany.
- Technical University of Munich, Institute of Neuronal Cell Biology, Munich, Germany.
- Munich Cluster for Systems Neurology, Munich, Germany.
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27
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Traynor R, Moran J, Stevens M, Antico O, Knebel A, Behrouz B, Merchant K, Hastie CJ, Davies P, Muqit MMK, De Cesare V. Design and high-throughput implementation of MALDI-TOF/MS-based assays for Parkin E3 ligase activity. CELL REPORTS METHODS 2024; 4:100712. [PMID: 38382522 PMCID: PMC10921019 DOI: 10.1016/j.crmeth.2024.100712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 10/11/2023] [Accepted: 01/26/2024] [Indexed: 02/23/2024]
Abstract
Parkinson's disease (PD) is a progressive neurological disorder that manifests clinically as alterations in movement as well as multiple non-motor symptoms including but not limited to cognitive and autonomic abnormalities. Loss-of-function mutations in the gene encoding the ubiquitin E3 ligase Parkin are causal for familial and juvenile PD. Among several therapeutic approaches being explored to treat or improve the prognosis of patients with PD, the use of small molecules able to reinstate or boost Parkin activity represents a potential pharmacological treatment strategy. A major barrier is the lack of high-throughput platforms for the robust and accurate quantification of Parkin activity in vitro. Here, we present two different and complementary Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight Mass Spectrometry (MALDI-TOF/MS)-based approaches for the quantification of Parkin E3 ligase activity in vitro. Both approaches are scalable for high-throughput primary screening to facilitate the identification of Parkin modulators.
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Affiliation(s)
- Ryan Traynor
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Jennifer Moran
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Michael Stevens
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Odetta Antico
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Axel Knebel
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Bahareh Behrouz
- Vincere Biosciences, Inc., 245 Main St. Fl 2, Cambridge, MA 02142, USA
| | - Kalpana Merchant
- Northwestern University Feinberg School of Medicine, Chicago, IL 60611, USA
| | - C James Hastie
- MRC Protein Phosphorylation and Ubiquitylation Unit Reagents and Services, School of Life Sciences, University of Dundee, Dow St., Dundee DD1 5EH, Scotland, UK
| | - Paul Davies
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Miratul M K Muqit
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK
| | - Virginia De Cesare
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dow St, Dundee DD1 5EH, Scotland, UK.
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28
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Ramirez AT, Liu Z, Xu Q, Nowosadtko S, Liu X. Cloflucarban Illuminates Specificity and Context-Dependent Activation of the PINK1-Parkin Pathway by Mitochondrial Complex Inhibition. Biomolecules 2024; 14:248. [PMID: 38540668 PMCID: PMC10967832 DOI: 10.3390/biom14030248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/09/2024] [Accepted: 02/16/2024] [Indexed: 05/30/2024] Open
Abstract
The PTEN-induced kinase 1 (PINK1)-Parkin pathway plays a vital role in maintaining a healthy pool of mitochondria in higher eukaryotic cells. While the downstream components of this pathway are well understood, the upstream triggers remain less explored. In this study, we conducted an extensive analysis of inhibitors targeting various mitochondrial electron transport chain (ETC) complexes to investigate their potential as activators of the PINK1-Parkin pathway. We identified cloflucarban, an antibacterial compound, as a novel pathway activator that simultaneously inhibits mitochondrial complexes III and V, and V. RNA interference (RNAi) confirmed that the dual inhibition of these complexes activates the PINK1-Parkin pathway. Intriguingly, we discovered that albumin, specifically bovine serum albumin (BSA) and human serum albumin (HSA) commonly present in culture media, can hinder carbonyl cyanide m-chlorophenyl hydrazone (CCCP)-induced pathway activation. However, cloflucarban's efficacy remains unaffected by albumin, highlighting its reliability for studying the PINK1-Parkin pathway. This study provides insights into the activation of the upstream PINK1-Parkin pathway and underscores the influence of culture conditions on research outcomes. Cloflucarban emerges as a promising tool for investigating mitochondrial quality control and neurodegenerative diseases.
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Affiliation(s)
| | | | | | | | - Xuedong Liu
- Department of Biochemistry, Jennie Smoly Caruthers Biotechnology Building, University of Colorado-Boulder, 3415 Colorado Ave, Boulder, CO 80303, USA; (A.T.R.); (Q.X.); (S.N.)
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29
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Caruso L, Fields M, Rimondi E, Zauli G, Longo G, Marcuzzi A, Previati M, Gonelli A, Zauli E, Milani D. Classical and Innovative Evidence for Therapeutic Strategies in Retinal Dysfunctions. Int J Mol Sci 2024; 25:2124. [PMID: 38396799 PMCID: PMC10889839 DOI: 10.3390/ijms25042124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
The human retina is a complex anatomical structure that has no regenerative capacity. The pathogenesis of most retinopathies can be attributed to inflammation, with the activation of the inflammasome protein platform, and to the impact of oxidative stress on the regulation of apoptosis and autophagy/mitophagy in retinal cells. In recent years, new therapeutic approaches to treat retinopathies have been investigated. Experimental data suggest that the secretome of mesenchymal cells could reduce oxidative stress, autophagy, and the apoptosis of retinal cells, and in turn, the secretome of the latter could induce changes in mesenchymal cells. Other studies have evidenced that noncoding (nc)RNAs might be new targets for retinopathy treatment and novel disease biomarkers since a correlation has been found between ncRNA levels and retinopathies. A new field to explore is the interaction observed between the ocular and intestinal microbiota; indeed, recent findings have shown that the alteration of gut microbiota seems to be linked to ocular diseases, suggesting a gut-eye axis. To explore new therapeutical strategies for retinopathies, it is important to use proper models that can mimic the complexity of the retina. In this context, retinal organoids represent a good model for the study of the pathophysiology of the retina.
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Affiliation(s)
- Lorenzo Caruso
- Department of Environmental and Prevention Sciences, University of Ferrara, 44121 Ferrara, Italy; (L.C.); (A.G.)
| | - Matteo Fields
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
| | - Erika Rimondi
- Department of Translational Medicine and LTTA Centre, University of Ferrara, 44121 Ferrara, Italy
| | - Giorgio Zauli
- Research Department, King Khaled Eye Specialist Hospital, Riyadh 11462, Saudi Arabia;
| | - Giovanna Longo
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
| | - Annalisa Marcuzzi
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
| | - Maurizio Previati
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
| | - Arianna Gonelli
- Department of Environmental and Prevention Sciences, University of Ferrara, 44121 Ferrara, Italy; (L.C.); (A.G.)
| | - Enrico Zauli
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
| | - Daniela Milani
- Department of Translational Medicine, University of Ferrara, 44121 Ferrara, Italy; (M.F.); (G.L.); (A.M.); (M.P.); (D.M.)
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30
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Marchesan E, Nardin A, Mauri S, Bernardo G, Chander V, Di Paola S, Chinellato M, von Stockum S, Chakraborty J, Herkenne S, Basso V, Schrepfer E, Marin O, Cendron L, Medina DL, Scorrano L, Ziviani E. Activation of Ca 2+ phosphatase Calcineurin regulates Parkin translocation to mitochondria and mitophagy in flies. Cell Death Differ 2024; 31:217-238. [PMID: 38238520 PMCID: PMC10850161 DOI: 10.1038/s41418-023-01251-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 11/23/2023] [Accepted: 12/05/2023] [Indexed: 02/09/2024] Open
Abstract
Selective removal of dysfunctional mitochondria via autophagy is crucial for the maintenance of cellular homeostasis. This event is initiated by the translocation of the E3 ubiquitin ligase Parkin to damaged mitochondria, and it requires the Serine/Threonine-protein kinase PINK1. In a coordinated set of events, PINK1 operates upstream of Parkin in a linear pathway that leads to the phosphorylation of Parkin, Ubiquitin, and Parkin mitochondrial substrates, to promote ubiquitination of outer mitochondrial membrane proteins. Ubiquitin-decorated mitochondria are selectively recruiting autophagy receptors, which are required to terminate the organelle via autophagy. In this work, we show a previously uncharacterized molecular pathway that correlates the activation of the Ca2+-dependent phosphatase Calcineurin to Parkin translocation and Parkin-dependent mitophagy. Calcineurin downregulation or genetic inhibition prevents Parkin translocation to CCCP-treated mitochondria and impairs stress-induced mitophagy, whereas Calcineurin activation promotes Parkin mitochondrial recruitment and basal mitophagy. Calcineurin interacts with Parkin, and promotes Parkin translocation in the absence of PINK1, but requires PINK1 expression to execute mitophagy in MEF cells. Genetic activation of Calcineurin in vivo boosts basal mitophagy in neurons and corrects locomotor dysfunction and mitochondrial respiratory defects of a Drosophila model of impaired mitochondrial functions. Our study identifies Calcineurin as a novel key player in the regulation of Parkin translocation and mitophagy.
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Affiliation(s)
| | - Alice Nardin
- Department of Biology, University of Padova, Padova, Italy
| | - Sofia Mauri
- Department of Biology, University of Padova, Padova, Italy
| | - Greta Bernardo
- Department of Biology, University of Padova, Padova, Italy
| | - Vivek Chander
- Department of Biology, University of Padova, Padova, Italy
| | - Simone Di Paola
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy
- Institute for Experimental Endocrinology and Oncology (IEOS), National Research Council (CNR), Napoli, Italy
| | | | | | | | | | | | - Emilie Schrepfer
- Department of Biology, University of Padova, Padova, Italy
- Dulbecco-Telethon Institute, Venetian Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Oriano Marin
- Department of Biomedical Sciences (DSB), University of Padova, Padova, Italy
| | - Laura Cendron
- Department of Biology, University of Padova, Padova, Italy
| | - Diego L Medina
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Naples, Italy
- Medical Genetics Unit, Department of Medical and Translational Science, Federico II University, Naples, Italy
| | - Luca Scorrano
- Department of Biology, University of Padova, Padova, Italy
- Dulbecco-Telethon Institute, Venetian Institute of Molecular Medicine (VIMM), Padova, Italy
| | - Elena Ziviani
- Department of Biology, University of Padova, Padova, Italy.
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31
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Alvarez S, Vanasco V, Adán Areán JS, Magnani N, Evelson P. Mitochondrial Mechanisms in Immunity and Inflammatory Conditions: Beyond Energy Management. Antioxid Redox Signal 2024. [PMID: 38062738 DOI: 10.1089/ars.2023.0367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2024]
Abstract
Significance: The growing importance of mitochondria in the immune response and inflammation is multifaceted. Unraveling the different mechanisms by which mitochondria have a relevant role in the inflammatory response beyond the energy management of the process is necessary for improving our understanding of the host immune defense and the pathogenesis of various inflammatory diseases and syndromes. Critical Issues: Mitochondria are relevant in the immune response at different levels, including releasing activation molecules, changing its structure and function to accompany the immune response, and serving as a structural base for activating intermediates as NLRP3 inflammasome. In this scientific journey of dissecting mitochondrial mechanisms, new questions and interesting aspects arise, such as the involvement of mitochondrial-derived vesicles in the immune response with the putative role of preventing uncontrolled situations. Recent Advances: Researchers are continuously rethinking the role of mitochondria in acute and chronic inflammation and related disorders. As such, mitochondria have important roles as centrally positioned signaling hubs in regulating inflammatory and immune responses. In this review, we present the current understanding of mitochondrial mechanisms involved, beyond the largely known mitochondrial dysfunction, in the onset and development of inflammatory situations. Future Directions: Mitochondria emerge as an interesting and multifaceted platform for studying and developing pharmaceutical and therapeutic approaches. There are many ongoing studies aimed to describe the effects of specific mitochondrial targeted molecules and treatments to ameliorate the consequences of exacerbated inflammatory components of pathologies and syndromes, resulting in an open area of increasing research interest.
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Affiliation(s)
- Silvia Alvarez
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Virginia Vanasco
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Juan Santiago Adán Areán
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Fisicoquímica, CABA, Argentina
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
| | - Natalia Magnani
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Buenos Aires, CABA, Argentina
| | - Pablo Evelson
- Universidad de Buenos Aires, Facultad de Farmacia y Bioquímica, Departamento de Ciencias Químicas, Química General e Inorgánica, CABA, Argentina
- CONICET-Universidad de Buenos Aires, Instituto de Bioquímica y Medicina Molecular (IBIMOL), Buenos Aires, CABA, Argentina
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32
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Markham BN, Ramnarine C, Kim S, Grever WE, Soto-Beasley AI, Heckman M, Ren Y, Osborne AC, Bhagwate AV, Liu Y, Wang C, Kim J, Wszolek ZK, Ross OA, Springer W, Fiesel FC. miRNA family miR-29 inhibits PINK1-PRKN dependent mitophagy via ATG9A. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.17.576122. [PMID: 38293184 PMCID: PMC10827147 DOI: 10.1101/2024.01.17.576122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Loss-of-function mutations in the genes encoding PINK1 and PRKN result in early-onset Parkinson disease (EOPD). Together the encoded enzymes direct a neuroprotective pathway that ensures the elimination of damaged mitochondria via autophagy. We performed a genome-wide high content imaging miRNA screen for inhibitors of the PINK1-PRKN pathway and identified all three members of the miRNA family 29 (miR-29). Using RNAseq we identified target genes and found that siRNA against ATG9A phenocopied the effects of miR-29 and inhibited the initiation of PINK1-PRKN mitophagy. Furthermore, we discovered two rare, potentially deleterious, missense variants (p.R631W and p.S828L) in our EOPD cohort and tested them experimentally in cells. While expression of wild-type ATG9A was able to rescue the effects of miR-29a, the EOPD-associated variants behaved like loss-of-function mutations. Together, our study validates miR-29 and its target gene ATG9A as novel regulators of mitophagy initiation. It further serves as proof-of-concept of finding novel, potentially disease-causing EOPD-linked variants specifically in mitophagy regulating genes. The nomination of genetic variants and biological pathways is important for the stratification and treatment of patients that suffer from devastating diseases, such as EOPD.
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Affiliation(s)
- Briana N Markham
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Chloe Ramnarine
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Songeun Kim
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | | | - Michael Heckman
- Division of Clinical Trials and Biostatistics, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Yingxue Ren
- Department of Quantitative Health Science, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Andrew C Osborne
- Department of Quantitative Health Science, Mayo Clinic, Rochester, MN 55905, USA
| | - Aditya V Bhagwate
- Department of Quantitative Health Science, Mayo Clinic, Rochester, MN 55905, USA
| | - Yuanhang Liu
- Department of Quantitative Health Science, Mayo Clinic, Rochester, MN 55905, USA
| | - Chen Wang
- Department of Quantitative Health Science, Mayo Clinic, Rochester, MN 55905, USA
| | - Jungsu Kim
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Owen A Ross
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Fabienne C Fiesel
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
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33
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Watzlawik JO, Hou X, Richardson T, Lewicki SL, Siuda J, Wszolek ZK, Cook CN, Petrucelli L, DeTure M, Dickson DW, Antico O, Muqit MMK, Fishman JB, Pirani K, Kumaran R, Polinski NK, Fiesel FC, Springer W. Development and characterization of phospho-ubiquitin antibodies to monitor PINK1-PRKN signaling in cells and tissue. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.15.575715. [PMID: 38293125 PMCID: PMC10827112 DOI: 10.1101/2024.01.15.575715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
The selective removal of dysfunctional mitochondria, a process termed mitophagy, is critical for cellular health and impairments have been linked to aging, Parkinson disease, and other neurodegenerative conditions. A central mitophagy pathway is orchestrated by the ubiquitin (Ub) kinase PINK1 together with the E3 Ub ligase PRKN/Parkin. The decoration of damaged mitochondrial domains with phosphorylated Ub (p-S65-Ub) mediates their elimination though the autophagy system. As such p-S65-Ub has emerged as a highly specific and quantitative marker of mitochondrial damage with significant disease relevance. Existing p-S65-Ub antibodies have been successfully employed as research tools in a range of applications including western blot, immunocytochemistry, immunohistochemistry, and ELISA. However, physiological levels of p-S65-Ub in the absence of exogenous stress are very low, therefore difficult to detect and require reliable and ultrasensitive methods. Here we generated and characterized a collection of novel recombinant, rabbit monoclonal p-S65-Ub antibodies with high specificity and affinity in certain applications that allow the field to better understand the molecular mechanisms and disease relevance of PINK1-PRKN signaling. These antibodies may also serve as novel diagnostic or prognostic tools to monitor mitochondrial damage in various clinical and pathological specimens.
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Affiliation(s)
- Jens O. Watzlawik
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Xu Hou
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | | | - Szymon L. Lewicki
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Joanna Siuda
- Department of Neurology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, Katowice 40-055, Poland
| | | | - Casey N. Cook
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Leonard Petrucelli
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Michael DeTure
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Dennis W. Dickson
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Odetta Antico
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom
| | - Miratul M. K. Muqit
- MRC Protein Phosphorylation and Ubiquitylation Unit, School of Life Sciences, University of Dundee, Dundee, DD1 5EH, United Kingdom
| | | | - Karima Pirani
- ImmunoPrecise Antibodies Ltd., Victoria, BC V8Z 7X8, Canada
| | | | - Nicole K. Polinski
- The Michael J. Fox Foundation for Parkinson’s Research, New York, NY 10163, USA
| | - Fabienne C. Fiesel
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
| | - Wolfdieter Springer
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
- Neuroscience PhD Program, Mayo Clinic Graduate School of Biomedical Sciences, Jacksonville, FL 32224, USA
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34
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Luo S, Wang D, Zhang Z. Post-translational modification and mitochondrial function in Parkinson's disease. Front Mol Neurosci 2024; 16:1329554. [PMID: 38273938 PMCID: PMC10808367 DOI: 10.3389/fnmol.2023.1329554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 12/21/2023] [Indexed: 01/27/2024] Open
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease with currently no cure. Most PD cases are sporadic, and about 5-10% of PD cases present a monogenic inheritance pattern. Mutations in more than 20 genes are associated with genetic forms of PD. Mitochondrial dysfunction is considered a prominent player in PD pathogenesis. Post-translational modifications (PTMs) allow rapid switching of protein functions and therefore impact various cellular functions including those related to mitochondria. Among the PD-associated genes, Parkin, PINK1, and LRRK2 encode enzymes that directly involved in catalyzing PTM modifications of target proteins, while others like α-synuclein, FBXO7, HTRA2, VPS35, CHCHD2, and DJ-1, undergo substantial PTM modification, subsequently altering mitochondrial functions. Here, we summarize recent findings on major PTMs associated with PD-related proteins, as enzymes or substrates, that are shown to regulate important mitochondrial functions and discuss their involvement in PD pathogenesis. We will further highlight the significance of PTM-regulated mitochondrial functions in understanding PD etiology. Furthermore, we emphasize the potential for developing important biomarkers for PD through extensive research into PTMs.
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Affiliation(s)
- Shishi Luo
- Institute for Future Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Hengyang, Hunan, China
- The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Danling Wang
- Institute for Future Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Hengyang, Hunan, China
- The Affiliated Changsha Central Hospital, Hengyang Medical School, University of South China, Changsha, Hunan, China
| | - Zhuohua Zhang
- Institute for Future Sciences, Hengyang Medical School, University of South China, Hengyang, Hunan, China
- Key Laboratory of Rare Pediatric Diseases, Ministry of Education, Hengyang, Hunan, China
- Institute of Molecular Precision Medicine, Xiangya Hospital, Key Laboratory of Molecular Precision Medicine of Hunan Province and Center for Medical Genetics, Hunan Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China
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35
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Guseva EA, Pavlova JA, Dontsova OA, Sergiev PV. Synthetic Activators of Autophagy. BIOCHEMISTRY. BIOKHIMIIA 2024; 89:27-52. [PMID: 38467544 DOI: 10.1134/s0006297924010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 11/24/2023] [Accepted: 11/26/2023] [Indexed: 03/13/2024]
Abstract
Autophagy is a central process for degradation of intracellular components that do not operate correctly. Molecular mechanisms underlying this process are extremely difficult to study, since they involve a large number of participants. The main task of autophagy is redistribution of cellular resources in response to environmental changes, such as starvation. Recent studies show that autophagy regulation could be the key to achieve healthy longevity, as well as to create therapeutic agents for treatment of neurodegenerative diseases such as Parkinson's and Alzheimer's diseases. Thus, development of autophagy activators with established detailed mechanism of action is a really important area of research. Several commercial companies are at various stages of development of such molecules, and some of them have already begun to introduce autophagy activators to the market.
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Affiliation(s)
- Ekaterina A Guseva
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Skolkovo, 143025, Russia.
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Julia A Pavlova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Skolkovo, 143025, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
| | - Olga A Dontsova
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Skolkovo, 143025, Russia
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Moscow, 117997, Russia
| | - Petr V Sergiev
- Center of Life Sciences, Skolkovo Institute of Science and Technology, Skolkovo, 143025, Russia.
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, 119991, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Moscow, 119991, Russia
- Institute of Functional Genomics, Lomonosov Moscow State University, Moscow, 119991, Russia
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36
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Cheng P, Hou Y, Bian M, Fang X, Liu Y, Rao Y, Cao S, Liu Y, Zhang S, Chen Y, Dong X, Liu Z. Parkin-mediated ubiquitination inhibits BAK apoptotic activity by blocking its canonical hydrophobic groove. Commun Biol 2023; 6:1260. [PMID: 38087033 PMCID: PMC10716173 DOI: 10.1038/s42003-023-05650-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
BAK permeabilizes the mitochondrial outer membrane, causing apoptosis. This apoptotic activity of BAK is stimulated by binding prodeath activators within its canonical hydrophobic groove. Parkin, an E3 ubiquitin (Ub) ligase, can ubiquitinate BAK, which inhibits BAK apoptotic activity. However, the molecular mechanism underlying the inhibition of ubiquitination remains structurally uncharacterized. Here, we utilize truncated and soluble BAK to construct a mimetic of K113-ubiquitinated BAK (disulfide-linked UbG76C ~ BAKK113C) and further present its NMR-derived structure model. The classical L8-I44-H68-V70 hydrophobic patch of the conjugated Ub subunit binds within the canonical hydrophobic groove of BAK. This Ub occludes the binding of prodeath BID activators in the groove and impairs BID-triggered BAK activation and membrane permeabilization. Reduced interaction between Ub and BAK subunits allows BID to activate K113-ubiquitinated BAK. These mechanistic insights suggest a nonsignaling function of Ub in that it directly antagonizes stimuli targeting Ub-modified proteins rather than by recruiting downstream partners for cellular messaging.
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Affiliation(s)
- Peng Cheng
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuzhu Hou
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Mingxing Bian
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Xueru Fang
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yan Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yuanfang Rao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuo Cao
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanjun Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China
| | - Shuai Zhang
- College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China
| | - Yanke Chen
- College of Biomedicine and Health, Huazhong Agricultural University, Wuhan, 430070, China.
| | - Xu Dong
- Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences, Wuhan, 430071, China.
- State Key Laboratory of Biocatalysis and Enzyme Engineering, College of Life Sciences, Hubei University, Wuhan, 430074, China.
| | - Zhu Liu
- National Key Laboratory of Crop Genetic Improvement, Hubei Hongshan Laboratory, Huazhong Agricultural University, Wuhan, 430070, China.
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37
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Song P, Peng W, Sauve V, Fakih R, Xie Z, Ysselstein D, Krainc T, Wong YC, Mencacci NE, Savas JN, Surmeier DJ, Gehring K, Krainc D. Parkinson's disease-linked parkin mutation disrupts recycling of synaptic vesicles in human dopaminergic neurons. Neuron 2023; 111:3775-3788.e7. [PMID: 37716354 DOI: 10.1016/j.neuron.2023.08.018] [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: 12/30/2022] [Revised: 05/08/2023] [Accepted: 08/17/2023] [Indexed: 09/18/2023]
Abstract
Parkin-mediated mitophagy has been studied extensively, but whether mutations in parkin contribute to Parkinson's disease pathogenesis through alternative mechanisms remains unexplored. Using patient-derived dopaminergic neurons, we found that phosphorylation of parkin by Ca2+/calmodulin-dependent protein kinase 2 (CaMK2) at Ser9 leads to activation of parkin in a neuronal-activity-dependent manner. Activated parkin ubiquitinates synaptojanin-1, facilitating its interaction with endophilin A1 and synaptic vesicle recycling. Neurons from PD patients with mutant parkin displayed defective recycling of synaptic vesicles, leading to accumulation of toxic oxidized dopamine that was attenuated by boosting endophilin A1 expression. Notably, combined heterozygous parkin and homozygous PTEN-induced kinase 1 (PINK1) mutations led to earlier disease onset compared with homozygous mutant PINK1 alone, further underscoring a PINK1-independent role for parkin in contributing to disease. Thus, this study identifies a pathway for selective activation of parkin at human dopaminergic synapses and highlights the importance of this mechanism in the pathogenesis of Parkinson's disease.
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Affiliation(s)
- Pingping Song
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Wesley Peng
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Veronique Sauve
- Department of Biochemistry and Centre de Recherche en Biologie Structurale, McGill University, Montreal, QC, Canada
| | - Rayan Fakih
- Department of Biochemistry and Centre de Recherche en Biologie Structurale, McGill University, Montreal, QC, Canada
| | - Zhong Xie
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Daniel Ysselstein
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Talia Krainc
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Yvette C Wong
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Niccolò E Mencacci
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - Jeffrey N Savas
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA
| | - D James Surmeier
- Department of Neuroscience, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Kalle Gehring
- Department of Biochemistry and Centre de Recherche en Biologie Structurale, McGill University, Montreal, QC, Canada
| | - Dimitri Krainc
- Ken and Ruth Davee Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, IL, USA.
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38
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He T, Wen C, Yang G, Yang X. Targeted Protein Degradation: Principles, Strategies, and Applications. Adv Biol (Weinh) 2023; 7:e2300083. [PMID: 37518856 DOI: 10.1002/adbi.202300083] [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: 03/20/2023] [Revised: 06/11/2023] [Indexed: 08/01/2023]
Abstract
Protein degradation is a general process to maintain cell homeostasis. The intracellular protein quality control system mainly includes the ubiquitin-proteasome system and the lysosome pathway. Inspired by the physiological process, strategies to degrade specific proteins have developed, which emerge as potent and effective tools in biological research and drug discovery. This review focuses on recent advances in targeted protein degradation techniques, summarizing the principles, advantages, and challenges. Moreover, the potential applications and future direction in biological science and clinics are also discussed.
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Affiliation(s)
- Ting He
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Chenxi Wen
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Guodong Yang
- The State Laboratory of Cancer Biology, Department of Biochemistry and Molecular Biology, Fourth Military Medical University, Xi'an, 710032, P. R. China
| | - Xuekang Yang
- Department of Burns and Cutaneous Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, P. R. China
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39
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Yang X, Zhang Y, Luo JX, Zhu T, Ran Z, Mu BR, Lu MH. Targeting mitophagy for neurological disorders treatment: advances in drugs and non-drug approaches. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2023; 396:3503-3528. [PMID: 37535076 DOI: 10.1007/s00210-023-02636-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Accepted: 07/18/2023] [Indexed: 08/04/2023]
Abstract
Mitochondria serve as a vital energy source for nerve cells. The mitochondrial network also acts as a defense mechanism against external stressors that can threaten the stability of the nervous system. However, excessive accumulation of damaged mitochondria can lead to neuronal death. Mitophagy is an essential pathway in the mitochondrial quality control system and can protect neurons by selectively removing damaged mitochondria. In most neurological disorders, dysfunctional mitochondria are a common feature, and drugs that target mitophagy can improve symptoms. Here, we reviewed the role of mitophagy in Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, Huntington's disease, stroke, and traumatic brain injuries. We also summarized drug and non-drug approaches to promote mitophagy and described their therapeutic role in neurological disorders in order to provide valuable insight into the potential therapeutic agents available for neurological disease treatment. However, most studies on mitophagy regulation are based on preclinical research using cell and animal models, which may not accurately reflect the effects in humans. This poses a challenge to the clinical application of drugs targeting mitophagy. Additionally, these drugs may carry the risk of intolerable side effects and toxicity. Future research should focus on the development of safer and more targeted drugs for mitophagy.
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Affiliation(s)
- Xiong Yang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yu Zhang
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Jia-Xin Luo
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Tao Zhu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Zhao Ran
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Ben-Rong Mu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
| | - Mei-Hong Lu
- Chongqing Key Laboratory of Sichuan-Chongqing Co-construction for Diagnosis and Treatment of Infectious Diseases Integrated Traditional Chinese and Western Medicine, College of Medical Technology, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China.
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Boya P, Kaarniranta K, Handa JT, Sinha D. Lysosomes in retinal health and disease. Trends Neurosci 2023; 46:1067-1082. [PMID: 37848361 PMCID: PMC10842632 DOI: 10.1016/j.tins.2023.09.006] [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: 06/18/2023] [Revised: 09/06/2023] [Accepted: 09/24/2023] [Indexed: 10/19/2023]
Abstract
Lysosomes play crucial roles in various cellular processes - including endocytosis, phagocytosis, and autophagy - which are vital for maintaining retinal health. Moreover, these organelles serve as environmental sensors and act as central hubs for multiple signaling pathways. Through communication with other cellular components, such as mitochondria, lysosomes orchestrate the cytoprotective response essential for preserving cellular homeostasis. This coordination is particularly critical in the retina, given its high metabolic rate and susceptibility to photo-oxidative stress. Consequently, impaired lysosomal function and dysregulated communication between lysosomes and other organelles contribute significantly to the pathobiology of major retinal degenerative diseases. This review explores the pivotal role of lysosomes in retinal cells and their involvement in retinal degenerative diseases.
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Affiliation(s)
- Patricia Boya
- Department of Neuroscience, University of Fribourg, Fribourg, Switzerland
| | - Kai Kaarniranta
- Department of Ophthalmology, University of Eastern Finland, Kuopio, Finland; Department of Ophthalmology, Kuopio University Hospital, Kuopio, Finland; Department of Molecular Genetics, University of Lodz, Lodz, Poland
| | - James T Handa
- The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Debasish Sinha
- The Wilmer Eye Institute, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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Zheng F, Zhong J, Chen K, Shi Y, Wang F, Wang S, Tang S, Yuan X, Shen Z, Tang S, Xia D, Wu Y, Lu W. PINK1-PTEN axis promotes metastasis and chemoresistance in ovarian cancer via non-canonical pathway. J Exp Clin Cancer Res 2023; 42:295. [PMID: 37940999 PMCID: PMC10633943 DOI: 10.1186/s13046-023-02823-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 09/05/2023] [Indexed: 11/10/2023] Open
Abstract
BACKGROUND Ovarian cancer is commonly associated with a poor prognosis due to metastasis and chemoresistance. PINK1 (PTEN-induced kinase 1) is a serine/threonine kinase that plays a crucial part in regulating various physiological and pathophysiological processes in cancer cells. METHODS The ATdb database and "CuratedOvarianData" were used to evaluate the effect of kinases on ovarian cancer survival. The gene expression in ovarian cancer cells was detected by Western blot and quantitative real-time PCR. The effects of gene knockdown or overexpression in vitro were evaluated by wound healing assay, cell transwell assay, immunofluorescence staining, immunohistochemistry, and flow cytometry analysis. Mass spectrometry analysis, protein structure analysis, co-immunoprecipitation assay, nuclear-cytoplasmic separation, and in vitro kinase assay were applied to demonstrate the PINK1-PTEN (phosphatase and tensin homolog) interaction and the effect of this interaction. The metastasis experiments for ovarian cancer xenografts were performed in female BALB/c nude mice. RESULTS PINK1 was strongly associated with a poor prognosis in ovarian cancer patients and promoted metastasis and chemoresistance in ovarian cancer cells. Although the canonical PINK1/PRKN (parkin RBR E3 ubiquitin protein ligase) pathway showed weak effects in ovarian cancer, PINK1 was identified to interact with PTEN and phosphorylate it at Serine179. Remarkably, the phosphorylation of PTEN resulted in the inactivation of the phosphatase activity, leading to an increase in AKT (AKT serine/threonine kinase) activity. Moreover, PINK1-mediated phosphorylation of PTEN impaired the nuclear import of PTEN, thereby enhancing the cancer cells' ability to resist chemotherapy and metastasize. CONCLUSIONS PINK1 interacts with and phosphorylates PTEN at Serine179, resulting in the activation of AKT and the inhibition of PTEN nuclear import. PINK1 promotes ovarian cancer metastasis and chemotherapy resistance through the regulation of PTEN. These findings offer new potential therapeutic targets for ovarian cancer management.
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Affiliation(s)
- Fang Zheng
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Jiamin Zhong
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Kelie Chen
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu Shi
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, the First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fang Wang
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shengchao Wang
- Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Song Tang
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Xiaoyu Yuan
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhangjin Shen
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Sangsang Tang
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Dajing Xia
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Cancer Center, Zhejiang University, Hangzhou, China.
| | - Yihua Wu
- Department of Toxicology of School of Public Health and Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Research Unit of Intelligence Classification of Tumor Pathology and Precision Therapy, Chinese Academy of Medical Sciences (2019RU042), Hangzhou, China.
| | - Weiguo Lu
- Women's Reproductive Health Laboratory of Zhejiang Province, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Department of Gynecologic Oncology of Women's Hospital, Zhejiang University School of Medicine, Hangzhou, China.
- Cancer Center, Zhejiang University, Hangzhou, China.
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, China.
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Cruz-Gregorio A, Aranda-Rivera AK, Amador-Martinez I, Maycotte P. Mitochondrial transplantation strategies in multifaceted induction of cancer cell death. Life Sci 2023; 332:122098. [PMID: 37734433 DOI: 10.1016/j.lfs.2023.122098] [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: 07/11/2023] [Revised: 09/14/2023] [Accepted: 09/14/2023] [Indexed: 09/23/2023]
Abstract
Otto Warburg hypothesized that some cancer cells reprogram their metabolism, favoring glucose metabolism by anaerobic glycolysis (Warburg effect) instead of oxidative phosphorylation, mainly because the mitochondria of these cells were damaged or dysfunctional. It should be noted that mitochondrial apoptosis is decreased because of the dysfunctional mitochondria. Strategies like mitochondrial transplantation therapy, where functional mitochondria are transplanted to cancer cells, could increase cell death, such as apoptosis, because the intrinsic apoptosis mechanisms would be reactivated. In addition, mitochondrial transplantation is associated with the redox state, which could promote synergy with common anticancer treatments such as ionizing radiation, chemotherapy, or radiotherapy, increasing cell death due to the presence or decrease of oxidative stress. On the other hand, mitochondrial transfer, a natural process for sharing mitochondrial between cells, induces an increase in chemoresistance and invasiveness in cancer cells that receive mitochondria from cells of the tumor microenvironment (TME), which indicates an antitumor therapeutic target. This review focuses on understanding mitochondrial transplantation as a therapeutic outcome induced by a procedure in aspects including oxidative stress, metabolism shifting, mitochondrial function, auto-/mitophagy, invasiveness, and chemoresistance. It also explores how these mechanisms, such as apoptosis, necroptosis, and parthanatos, impact cell death pathways. Finally, it discusses the chemoresistance and invasiveness in cancer cells associated with mitochondria transfer, indicating an antitumor therapeutic target.
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Affiliation(s)
- Alfredo Cruz-Gregorio
- Departamento de Fisiología, Instituto Nacional de Cardiología Ignacio Chávez, 14080 Mexico City, Mexico.
| | - Ana Karina Aranda-Rivera
- Laboratorio F-315, Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, 04510 Mexico City, Mexico.
| | - Isabel Amador-Martinez
- Laboratorio F-315, Departamento de Biología, Facultad de Química, Universidad Nacional Autónoma de México, 04510 Mexico City, Mexico.
| | - Paola Maycotte
- Centro de Investigación Biomédica de Oriente, Instituto Mexicano del Seguro Social, 74360 Puebla, Mexico.
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Waters CS, Angenent SB, Altschuler SJ, Wu LF. A PINK1 input threshold arises from positive feedback in the PINK1/Parkin mitophagy decision circuit. Cell Rep 2023; 42:113260. [PMID: 37851575 PMCID: PMC10668033 DOI: 10.1016/j.celrep.2023.113260] [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: 11/11/2022] [Revised: 08/25/2023] [Accepted: 09/28/2023] [Indexed: 10/20/2023] Open
Abstract
Mechanisms that prevent accidental activation of the PINK1/Parkin mitophagy circuit on healthy mitochondria are poorly understood. On the surface of damaged mitochondria, PINK1 accumulates and acts as the input signal to a positive feedback loop of Parkin recruitment, which in turn promotes mitochondrial degradation via mitophagy. However, PINK1 is also present on healthy mitochondria, where it could errantly recruit Parkin and thereby activate this positive feedback loop. Here, we explore emergent properties of the PINK1/Parkin circuit by quantifying the relationship between mitochondrial PINK1 concentrations and Parkin recruitment dynamics. We find that Parkin is recruited to mitochondria only if PINK1 levels exceed a threshold and then only after a delay that is inversely proportional to PINK1 levels. Furthermore, these two regulatory properties arise from the input-coupled positive feedback topology of the PINK1/Parkin circuit. These results outline an intrinsic mechanism by which the PINK1/Parkin circuit can avoid errant activation on healthy mitochondria.
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Affiliation(s)
- Christopher S Waters
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA
| | - Sigurd B Angenent
- Mathematics Department, University of Wisconsin Madison, Madison, WI 53706, USA
| | - Steven J Altschuler
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA.
| | - Lani F Wu
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA 94158, USA.
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Ye H, Li D, Wei X, Yu L, Jia L. Focused low-intensity pulsed ultrasound alleviates osteoarthritis via restoring impaired FUNDC1-mediated mitophagy. iScience 2023; 26:107772. [PMID: 37720103 PMCID: PMC10504546 DOI: 10.1016/j.isci.2023.107772] [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: 03/26/2023] [Revised: 07/11/2023] [Accepted: 08/26/2023] [Indexed: 09/19/2023] Open
Abstract
Mitophagy is critical for maintaining proper cellular functions, and it contributes to the onset and progression of osteoarthritis (OA). A recent study showed that focused low-intensity pulsed ultrasound (FLIPUS) could activate mitophagy, but the molecular mechanism remains unclear. This study aimed to elucidate the chondroprotective effects of FLIPUS in OA and the regulatory effects on FUN14-domain containing 1 (FUNDC1-mediated mitophagy. In vitro, FLIPUS improved inflammatory response, anabolism, and catabolism in interleukin (IL)-1β-induced OA chondrocytes. The chondroprotective effects of FLIPUS were attributed to promoting the expression of phosphoglycerate mutase 5 (PGAM5) and the dephosphorylation of FUNDC1 at serine 13 (Ser13), as well as promoting the mitophagy process. In vivo, FLIPUS reduced the cartilage degeneration and apoptosis and reversed the change of anabolic- and catabolic-related proteins in destabilized medial meniscus (DMM)-induced mouse model. Thus, the study indicates that FLIPUS exhibits a chondroprotective effect via activating impaired FUNDC1-mediated mitophagy.
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Affiliation(s)
- Haixia Ye
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
- Department of Rehabilitation Teaching and Research, Chongqing City Management College, Chongqing 401331, China
| | - Dongqian Li
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Xia Wei
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Lehua Yu
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
| | - Lang Jia
- Department of Rehabilitation Medicine, The Second Affiliated Hospital of Chongqing Medical University, Chongqing 400010, China
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Liu L, Li Y, Chen G, Chen Q. Crosstalk between mitochondrial biogenesis and mitophagy to maintain mitochondrial homeostasis. J Biomed Sci 2023; 30:86. [PMID: 37821940 PMCID: PMC10568841 DOI: 10.1186/s12929-023-00975-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 09/13/2023] [Indexed: 10/13/2023] Open
Abstract
Mitochondrial mass and quality are tightly regulated by two essential and opposing mechanisms, mitochondrial biogenesis (mitobiogenesis) and mitophagy, in response to cellular energy needs and other cellular and environmental cues. Great strides have been made to uncover key regulators of these complex processes. Emerging evidence has shown that there exists a tight coordination between mitophagy and mitobiogenesis, and their defects may cause many human diseases. In this review, we will first summarize the recent advances made in the discovery of molecular regulations of mitobiogenesis and mitophagy and then focus on the mechanism and signaling pathways involved in the simultaneous regulation of mitobiogenesis and mitophagy in the response of tissue or cultured cells to energy needs, stress, or pathophysiological conditions. Further studies of the crosstalk of these two opposing processes at the molecular level will provide a better understanding of how the cell maintains optimal cellular fitness and function under physiological and pathophysiological conditions, which holds promise for fighting aging and aging-related diseases.
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Affiliation(s)
- Lei Liu
- Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing, China.
- College of Life Sciences, University of Chinese Academy of Sciences, Beijing, China.
- Institute for Stem Cell and Regenerative Medicine, Beijing, China.
| | - Yanjun Li
- Center of Cell Response, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Guo Chen
- Center of Cell Response, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China
| | - Quan Chen
- Center of Cell Response, State Key Laboratory of Medicinal Chemical Biology, College of Life Sciences, Nankai University, Tianjin, China.
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Wen W, Zheng H, Li W, Huang G, Chen P, Zhu X, Cao Y, Li J, Huang X, Huang Y. Transcription factor EB: A potential integrated network regulator in metabolic-associated cardiac injury. Metabolism 2023; 147:155662. [PMID: 37517793 DOI: 10.1016/j.metabol.2023.155662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 07/19/2023] [Accepted: 07/21/2023] [Indexed: 08/01/2023]
Abstract
With the worldwide pandemic of metabolic diseases, such as obesity, diabetes, and non-alcoholic fatty liver disease (NAFLD), cardiometabolic disease (CMD) has become a significant cause of death in humans. However, the pathophysiology of metabolic-associated cardiac injury is complex and not completely clear, and it is important to explore new strategies and targets for the treatment of CMD. A series of pathophysiological disturbances caused by metabolic disorders, such as insulin resistance (IR), hyperglycemia, hyperlipidemia, mitochondrial dysfunction, oxidative stress, inflammation, endoplasmic reticulum stress (ERS), autophagy dysfunction, calcium homeostasis imbalance, and endothelial dysfunction, may be related to the incidence and development of CMD. Transcription Factor EB (TFEB), as a transcription factor, has been extensively studied for its role in regulating lysosomal biogenesis and autophagy. Recently, the regulatory role of TFEB in other biological processes, including the regulation of glucose homeostasis, lipid metabolism, etc. has been gradually revealed. In this review, we will focus on the relationship between TFEB and IR, lipid metabolism, endothelial dysfunction, oxidative stress, inflammation, ERS, calcium homeostasis, autophagy, and mitochondrial quality control (MQC) and the potential regulatory mechanisms among them, to provide a comprehensive summary for TFEB as a potential new therapeutic target for CMD.
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Affiliation(s)
- Weixing Wen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Haoxiao Zheng
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Weiwen Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Guolin Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Peng Chen
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaolin Zhu
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
| | - Yue Cao
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Jiahuan Li
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Xiaohui Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China
| | - Yuli Huang
- Department of Cardiology, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China; The George Institute for Global Health, Faculty of Medicine, University of New South Wales, Sydney, Australia; Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation Research, Guangzhou, China; Medical Research Center, Shunde Hospital, Southern Medical University (The First People's Hospital of Shunde), NO. 1 Jiazi Road, Lunjiao, Shunde District, Foshan City, Guangdong 528308, China.
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Yang T, Yang Q, Lai Q, Zhao J, Nie L, Liu S, Yang J, Chu C. AP39 inhibits ferroptosis by inhibiting mitochondrial autophagy through the PINK1/parkin pathway to improve myocardial fibrosis with myocardial infarction. Biomed Pharmacother 2023; 165:115195. [PMID: 37516015 DOI: 10.1016/j.biopha.2023.115195] [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: 06/06/2023] [Revised: 07/10/2023] [Accepted: 07/18/2023] [Indexed: 07/31/2023] Open
Abstract
BACKGROUND AND PURPOSE Research has revealed the involvement of mitochondrial autophagy and iron death in the pathogenesis of myocardial fibrosis. The objective of this study is to investigate whether the mitochondrial-targeted H2S donor AP39 inhibits mitochondrial autophagy and antagonizes myocardial cell iron death through the PINK1/Parkin pathway, thereby improving myocardial fibrosis in rats with myocardial infarction. EXPERIMENTAL APPROACH A rat model of myocardial infarction was created by intraperitoneal injection of a high dose of isoproterenol, and H9c2 myocardial cells were subjected to hypoxic injury induced by CoCl2. Western blot, RT-PCR, transmission electron microscopy, immunohistochemistry, as well as echocardiography, and studies on isolated hearts were employed. KEY RESULTS In the hearts of rats with myocardial infarction, there was a significant accumulation of interstitial collagen fibers, accompanied by downregulation of CSE protein expression, activation of the PINK1/Parkin signaling pathway, and activation of mitochondrial autophagy. Intervention with AP39 resulted in a significant improvement of the aforementioned changes, which could be reversed by the addition of PAG. Similar results were observed in vitro experiments. Furthermore, the addition of CCCP reversed the antagonistic effect of AP39 on myocardial cell iron death, while the addition of RSL3 reversed the inhibitory effect of AP39 on collagen production in myocardial cells. CONCLUSION AND IMPLICATIONS The mitochondrial-targeted H2S donor AP39 can inhibit mitochondrial autophagy through the PINK1/Parkin pathway, antagonize myocardial cell iron death, and improve myocardial fibrosis in rats with myocardial infarction.
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Affiliation(s)
- Ting Yang
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China; School of Pharmaceutical Science of University of South China, Hengyang 421000, Hunan Province, China
| | - Qi Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China
| | - Qi Lai
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China; School of Pharmaceutical Science of University of South China, Hengyang 421000, Hunan Province, China
| | - Junxiong Zhao
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China
| | - Liangui Nie
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China
| | - Shengquan Liu
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China
| | - Jun Yang
- Department of Cardiology, The First Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China.
| | - Chun Chu
- Department of Pharmacy, The Second Affiliated Hospital, Hengyang Medical School, University of South China, Hengyang 421000, Hunan Province, China.
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Wang Z, Chen C, Ai J, Shu J, Ding Y, Wang W, Gao Y, Jia Y, Qin Y. Identifying mitophagy-related genes as prognostic biomarkers and therapeutic targets of gastric carcinoma by integrated analysis of single-cell and bulk-RNA sequencing data. Comput Biol Med 2023; 163:107227. [PMID: 37413850 DOI: 10.1016/j.compbiomed.2023.107227] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/01/2023] [Accepted: 06/30/2023] [Indexed: 07/08/2023]
Abstract
Gastric carcinoma (GC) is the fourth leading cause of cancer-related mortality worldwide. Patients with advanced GC tend to have poor prognoses and shortened survival. Finding novel predictive biomarkers for GC prognosis is an urgent need. Mitophagy is the selection degradation of damaged mitochondria to maintain cellular homeostasis, which has been shown to play both pro- and anti-tumor effects. This study combined single-cell sequencing data and transcriptomics to screen mitophagy-related genes (MRGs) associated with GC progression and analyze their clinical values. Reverse transcription-quantitative PCR (RT-qPCR) and immunochemistry (IHC) further verified gene expression profiles. A total of 18 DE-MRGs were identified after taking an intersection of single-cell sequencing data and MRGs. Cells with a higher MRG score were mainly distributed in the epithelial cell cluster. Cell-to-cell communications among epithelial cells with other cell types were significantly upregulated. We established and validated a reliable nomogram model based on DE-MRGs (GABARAPL2 and CDC37) and traditional clinicopathological parameters. GABARAPL2 and CDC37 displayed different immune infiltration states. Given the significant correlation between hub genes and immune checkpoints, targeting MRGs in GC may supplement more benefits to patients who received immunotherapy. In conclusion, GABARAPL2 and CDC37 may be prognostic biomarkers and candidate therapeutic targets of GC.
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Affiliation(s)
- Zehua Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Chen Chen
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Jiaoyu Ai
- The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jiao Shu
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Ding
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wenjia Wang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yaping Gao
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yongxu Jia
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
| | - Yanru Qin
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
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Suresh K, Mattern M, Goldberg MS, Butt TR. The Ubiquitin Proteasome System as a Therapeutic Area in Parkinson's Disease. Neuromolecular Med 2023; 25:313-329. [PMID: 36739586 DOI: 10.1007/s12017-023-08738-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 01/28/2023] [Indexed: 02/06/2023]
Abstract
Parkinson's disease (PD) is the most common neurodegenerative movement disorder. There are no available therapeutics that slow or halt the progressive loss of dopamine-producing neurons, which underlies the primary clinical symptoms. Currently approved PD drugs can provide symptomatic relief by increasing brain dopamine content or activity; however, the alleviation is temporary, and the effectiveness diminishes with the inevitable progression of neurodegeneration. Discovery and development of disease-modifying neuroprotective therapies has been hampered by insufficient understanding of the root cause of PD-related neurodegeneration. The etiology of PD involves a combination of genetic and environmental factors. Although a single cause has yet to emerge, genetic, cell biological and neuropathological evidence implicates mitochondrial dysfunction and protein aggregation. Postmortem PD brains show pathognomonic Lewy body intraneuronal inclusions composed of aggregated α-synuclein, indicative of failure to degrade misfolded protein. Mutations in the genes that code for α-synuclein, as well as the E3 ubiquitin ligase Parkin, cause rare inherited forms of PD. While many ubiquitin ligases label proteins with ubiquitin chains to mark proteins for degradation by the proteasome, Parkin has been shown to mark dysfunctional mitochondria for degradation by mitophagy. The ubiquitin proteasome system participates in several aspects of the cell's response to mitochondrial damage, affording numerous therapeutic opportunities to augment mitophagy and potentially stop PD progression. This review examines the role and therapeutic potential of such UPS modulators, exemplified by both ubiquitinating and deubiquitinating enzymes.
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Affiliation(s)
- Kumar Suresh
- Progenra Inc., 271A Great Valley Parkway, Malvern, PA, 19355, USA.
| | - Michael Mattern
- Progenra Inc., 271A Great Valley Parkway, Malvern, PA, 19355, USA
| | - Matthew S Goldberg
- Department of Neurology, The University of Alabama at Birmingham, Birmingham, AL, USA
- Center for Neurodegeneration and Experimental Therapeutics, The University of Alabama at Birmingham, Birmingham, AL, USA
- Department of Neurobiology, The University of Alabama at Birmingham, Birmingham, AL, USA
| | - Tauseef R Butt
- Progenra Inc., 271A Great Valley Parkway, Malvern, PA, 19355, USA
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Chen C, McDonald D, Blain A, Mossman E, Atkin K, Marusich MF, Capaldi R, Bone L, Smith A, Filby A, Erskine D, Russell O, Hudson G, Vincent AE, Reeve AK. Parkinson's disease neurons exhibit alterations in mitochondrial quality control proteins. NPJ Parkinsons Dis 2023; 9:120. [PMID: 37553379 PMCID: PMC10409763 DOI: 10.1038/s41531-023-00564-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 07/21/2023] [Indexed: 08/10/2023] Open
Abstract
Mitochondrial dysfunction has been suggested to contribute to Parkinson's disease pathogenesis, though an understanding of the extent or exact mechanism of this contribution remains elusive. This has been complicated by challenging nature of pathway-based analysis and an inability simultaneously study multiple related proteins within human brain tissue. We used imaging mass cytometry (IMC) to overcome these challenges, measuring multiple protein targets, whilst retaining the spatial relationship between targets in post-mortem midbrain sections. We used IMC to simultaneously interrogate subunits of the mitochondrial oxidative phosphorylation complexes, and several key signalling pathways important for mitochondrial homoeostasis, in a large cohort of PD patient and control cases. We revealed a generalised and synergistic reduction in mitochondrial quality control proteins in dopaminergic neurons from Parkinson's patients. Further, protein-protein abundance relationships appeared significantly different between PD and disease control tissue. Our data showed a significant reduction in the abundance of PINK1, Parkin and phosphorylated ubiquitinSer65, integral to the mitophagy machinery; two mitochondrial chaperones, HSP60 and PHB1; and regulators of mitochondrial protein synthesis and the unfolded protein response, SIRT3 and TFAM. Further, SIRT3 and PINK1 did not show an adaptive response to an ATP synthase defect in the Parkinson's neurons. We also observed intraneuronal aggregates of phosphorylated ubiquitinSer65, alongside increased abundance of mitochondrial proteases, LONP1 and HTRA2, within the Parkinson's neurons with Lewy body pathology, compared to those without. Taken together, these findings suggest an inability to turnover mitochondria and maintain mitochondrial proteostasis in Parkinson's neurons. This may exacerbate the impact of oxidative phosphorylation defects and ageing related oxidative stress, leading to neuronal degeneration. Our data also suggest that that Lewy pathology may affect mitochondrial quality control regulation through the disturbance of mitophagy and intramitochondrial proteostasis.
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Affiliation(s)
- Chun Chen
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
| | - David McDonald
- Innovation, Methodology and Application Research Theme, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
- Flow Cytometry Core Facility, Newcastle University, Newcastle upon Tyne, UK
| | - Alasdair Blain
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Emily Mossman
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Kiera Atkin
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | | | | | - Laura Bone
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Anna Smith
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Andrew Filby
- Innovation, Methodology and Application Research Theme, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
- Flow Cytometry Core Facility, Newcastle University, Newcastle upon Tyne, UK
| | - Daniel Erskine
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Oliver Russell
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Gavin Hudson
- Wellcome Centre for Mitochondrial Research, Biosciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Amy E Vincent
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Amy K Reeve
- Wellcome Centre for Mitochondrial Research, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK.
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