1
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Redjdal W, Benmahdjoub S, Luong TTH, Benmerad B, Le Bideau F, Vergnaud J, Messaoudi S. Pd-Catalyzed Coupling of Bromo-N- (β-glucopyranosyl)quinolin-2-ones with Amides: Synthesis of N-glucosyl-6BrCaQ Conjugates with Potent Anticancer Activity. ChemMedChem 2024:e202400195. [PMID: 38687188 DOI: 10.1002/cmdc.202400195] [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: 03/14/2024] [Revised: 04/26/2024] [Accepted: 04/29/2024] [Indexed: 05/02/2024]
Abstract
A series of N-glycosyl- 6BrCaQ conjugates was synthesized through a Pd-catalyzed cross-coupling reaction between brominated N-glycosyl quinolin-2-one derivatives and various nitrogen nucleophiles. Antiproliferative assays revealed that this new series of analogues represents a promising class of antitumor compounds as illustrated by the high biological activity observed for several derivatives towards different cancer cell lines compared to the non-glycosylated congeners.
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Affiliation(s)
- Wafa Redjdal
- Université de Bejaia, Faculté des Sciences Exactes, Laboratoire de Physico-Chimie des Matériaux et Catalyse, 06000, Bejaia, Algeria
| | - Sara Benmahdjoub
- Université de Bejaia, Faculté des Sciences Exactes, Laboratoire de Physico-Chimie des Matériaux et Catalyse, 06000, Bejaia, Algeria
- Département de Chimie, Université M'Hamed Bougara de Boumerdes, 35000, Boumerdes, Algeria
| | | | - Belkacem Benmerad
- Université de Bejaia, Faculté des Sciences Exactes, Laboratoire de Physico-Chimie des Matériaux et Catalyse, 06000, Bejaia, Algeria
| | | | - Juliette Vergnaud
- Université Paris-Saclay, CNRS, Institut Galien-Paris Saclay, 92290, Orsay, France
| | - Samir Messaoudi
- Université Paris-Saclay, CNRS, BioCIS, 92290, Orsay, France
- Laboratoire de Synthèse Organique, Ecole Polytechnique, CNRS, ENSTA, Institut Polytechnique de Paris, Palaiseau, France
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2
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Hoang NM, Liu Y, Bates PD, Heaton AR, Lopez AF, Liu P, Zhu F, Chen R, Kondapelli A, Zhang X, Selberg PE, Ngo VN, Skala MC, Capitini CM, Rui L. Targeting DNMT3A-mediated oxidative phosphorylation to overcome ibrutinib resistance in mantle cell lymphoma. Cell Rep Med 2024; 5:101484. [PMID: 38554704 PMCID: PMC11031386 DOI: 10.1016/j.xcrm.2024.101484] [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: 04/11/2023] [Revised: 11/21/2023] [Accepted: 03/04/2024] [Indexed: 04/02/2024]
Abstract
The use of Bruton tyrosine kinase (BTK) inhibitors such as ibrutinib achieves a remarkable clinical response in mantle cell lymphoma (MCL). Acquired drug resistance, however, is significant and affects long-term survival of MCL patients. Here, we demonstrate that DNA methyltransferase 3A (DNMT3A) is involved in ibrutinib resistance. We find that DNMT3A expression is upregulated upon ibrutinib treatment in ibrutinib-resistant MCL cells. Genetic and pharmacological analyses reveal that DNMT3A mediates ibrutinib resistance independent of its DNA-methylation function. Mechanistically, DNMT3A induces the expression of MYC target genes through interaction with the transcription factors MEF2B and MYC, thus mediating metabolic reprogramming to oxidative phosphorylation (OXPHOS). Targeting DNMT3A with low-dose decitabine inhibits the growth of ibrutinib-resistant lymphoma cells both in vitro and in a patient-derived xenograft mouse model. These findings suggest that targeting DNMT3A-mediated metabolic reprogramming to OXPHOS with decitabine provides a potential therapeutic strategy to overcome ibrutinib resistance in relapsed/refractory MCL.
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Affiliation(s)
- Nguyet-Minh Hoang
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; McArdle Laboratory for Cancer Research, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Yunxia Liu
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Paul D Bates
- Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Alexa R Heaton
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Human Oncology, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Angelica F Lopez
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706, USA
| | - Peng Liu
- Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Department of Biostatistics and Medical Informatics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Fen Zhu
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Ruoyu Chen
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Apoorv Kondapelli
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Xiyu Zhang
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Paul E Selberg
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Vu N Ngo
- Department of Systems Biology, Beckman Research Institute, City of Hope, Duarte, CA 91010, USA
| | - Melissa C Skala
- Morgridge Institute for Research, University of Wisconsin-Madison, Madison, WI 53715, USA; Department of Biomedical Engineering, University of Wisconsin-Madison College of Engineering, Madison, WI 53706, USA
| | - Christian M Capitini
- Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA
| | - Lixin Rui
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA; Carbone Cancer Center, University of Wisconsin School of Medicine and Public Health, Madison, WI 53792, USA.
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3
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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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4
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Mansour HM, Mohamed AF, Khattab MM, El-Khatib AS. Heat Shock Protein 90 in Parkinson's Disease: Profile of a Serial Killer. Neuroscience 2024; 537:32-46. [PMID: 38040085 DOI: 10.1016/j.neuroscience.2023.11.031] [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: 09/29/2023] [Revised: 11/18/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease, characterized by abnormal α-synuclein misfolding and aggregation, mitochondrial dysfunction, oxidative stress, as well as progressive death of dopaminergic neurons in the substantia nigra. Molecular chaperones play a role in stabilizing proteins and helping them achieve their proper structure. Previous studies have shown that overexpression of heat shock protein 90 (HSP90) can lead to the death of dopaminergic neurons associated with PD. Inhibiting HSP90 is considered a potential treatment approach for neurodegenerative disorders, as it may reduce protein aggregation and related toxicity, as well as suppress various forms of regulated cell death (RCD). This review provides an overview of HSP90 and its role in PD, focusing on its modulation of proteostasis and quality control of LRRK2. The review also explores the effects of HSP90 on different types of RCD, such as apoptosis, chaperone-mediated autophagy (CMA), necroptosis, and ferroptosis. Additionally, it discusses HSP90 inhibitors that have been tested in PD models. We will highlight the under-investigated neuroprotective effects of HSP90 inhibition, including modulation of oxidative stress, mitochondrial dysfunction, PINK/PARKIN, heat shock factor 1 (HSF1), histone deacetylase 6 (HDAC6), and the PHD2-HSP90 complex-mediated mitochondrial stress pathway. By examining previous literature, this review uncovers overlooked neuroprotective mechanisms and emphasizes the need for further research on HSP90 inhibitors as potential therapeutic strategies for PD. Finally, the review discusses the potential limitations and possibilities of using HSP90 inhibitors in PD therapy.
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Affiliation(s)
- Heba M Mansour
- Central Administration of Biological, Innovative Products, and Clinical Studies (BIO-INN), Egyptian Drug Authority, EDA, Giza, Egypt.
| | - Ahmed F Mohamed
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt; Faculty of Pharmacy, King Salman International University (KSIU), South Sinai 46612, Egypt
| | - Mahmoud M Khattab
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Aiman S El-Khatib
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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5
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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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6
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Qiu B, Zhong Z, Dou L, Xu Y, Zou Y, Weldon K, Wang J, Zhang L, Liu M, Williams KE, Spence JP, Bell RL, Lai Z, Yong W, Liang T. Knocking out Fkbp51 decreases CCl 4-induced liver injury through enhancement of mitochondrial function and Parkin activity. Cell Biosci 2024; 14:1. [PMID: 38167156 PMCID: PMC10763032 DOI: 10.1186/s13578-023-01184-3] [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: 08/28/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND AND AIMS Previously, we found that FK506 binding protein 51 (Fkbp51) knockout (KO) mice resist high fat diet-induced fatty liver and alcohol-induced liver injury. The aim of this research is to identify the mechanism of Fkbp51 in liver injury. METHODS Carbon tetrachloride (CCl4)-induced liver injury was compared between Fkbp51 KO and wild type (WT) mice. Step-wise and in-depth analyses were applied, including liver histology, biochemistry, RNA-Seq, mitochondrial respiration, electron microscopy, and molecular assessments. The selective FKBP51 inhibitor (SAFit2) was tested as a potential treatment to ameliorate liver injury. RESULTS Fkbp51 knockout mice exhibited protection against liver injury, as evidenced by liver histology, reduced fibrosis-associated markers and lower serum liver enzyme levels. RNA-seq identified differentially expressed genes and involved pathways, such as fibrogenesis, inflammation, mitochondria, and oxidative metabolism pathways and predicted the interaction of FKBP51, Parkin, and HSP90. Cellular studies supported co-localization of Parkin and FKBP51 in the mitochondrial network, and Parkin was shown to be expressed higher in the liver of KO mice at baseline and after liver injury relative to WT. Further functional analysis identified that KO mice exhibited increased ATP production and enhanced mitochondrial respiration. KO mice have increased mitochondrial size, increased autophagy/mitophagy and mitochondrial-derived vesicles (MDV), and reduced reactive oxygen species (ROS) production, which supports enhancement of mitochondrial quality control (MQC). Application of SAFit2, an FKBP51 inhibitor, reduced the effects of CCl4-induced liver injury and was associated with increased Parkin, pAKT, and ATP production. CONCLUSIONS Downregulation of FKBP51 represents a promising therapeutic target for liver disease treatment.
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Affiliation(s)
- Bin Qiu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
- Department of Pharmacology, Yale University School of Medicine, New Haven, CI, 06520, USA
| | - Zhaohui Zhong
- General Surgery Department, Peking University People's Hospital, Beijing, 100032, China
| | - Longyu Dou
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
| | - Yuxue Xu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
| | - Yi Zou
- Greehey Children's Cancer Research Institute, UT Health, San Antonio, TX, 78229, USA
| | - Korri Weldon
- Greehey Children's Cancer Research Institute, UT Health, San Antonio, TX, 78229, USA
| | - Jun Wang
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
| | - Lingling Zhang
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
| | - Ming Liu
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China
| | - Kent E Williams
- Department of Medicine, Indiana University, School of Medicine, Indianapolis, 46202, USA
| | - John Paul Spence
- Department of Pediatrics, Indiana University, School of Medicine, Indianapolis, 46202, USA
| | - Richard L Bell
- Department of Psychiatry, Indiana University, School of Medicine, Indianapolis, 46202, USA
| | - Zhao Lai
- Greehey Children's Cancer Research Institute, UT Health, San Antonio, TX, 78229, USA
| | - Weidong Yong
- Department of Surgery, Indiana University, School of Medicine, Indianapolis, 46202, USA.
- Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100021, China.
| | - Tiebing Liang
- Department of Medicine, Indiana University, School of Medicine, Indianapolis, 46202, USA.
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7
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Uoselis L, Lindblom R, Lam WK, Küng CJ, Skulsuppaisarn M, Khuu G, Nguyen TN, Rudler DL, Filipovska A, Schittenhelm RB, Lazarou M. Temporal landscape of mitochondrial proteostasis governed by the UPR mt. SCIENCE ADVANCES 2023; 9:eadh8228. [PMID: 37738349 PMCID: PMC10516501 DOI: 10.1126/sciadv.adh8228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Accepted: 08/24/2023] [Indexed: 09/24/2023]
Abstract
Breakdown of mitochondrial proteostasis activates quality control pathways including the mitochondrial unfolded protein response (UPRmt) and PINK1/Parkin mitophagy. However, beyond the up-regulation of chaperones and proteases, we have a limited understanding of how the UPRmt remodels and restores damaged mitochondrial proteomes. Here, we have developed a functional proteomics framework, termed MitoPQ (Mitochondrial Proteostasis Quantification), to dissect the UPRmt's role in maintaining proteostasis during stress. We find essential roles for the UPRmt in both protecting and repairing proteostasis, with oxidative phosphorylation metabolism being a central target of the UPRmt. Transcriptome analyses together with MitoPQ reveal that UPRmt transcription factors drive independent signaling arms that act in concert to maintain proteostasis. Unidirectional interplay between the UPRmt and PINK1/Parkin mitophagy was found to promote oxidative phosphorylation recovery when the UPRmt failed. Collectively, this study defines the network of proteostasis mediated by the UPRmt and highlights the value of functional proteomics in decoding stressed proteomes.
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Affiliation(s)
- Louise Uoselis
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
| | - Runa Lindblom
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
| | - Wai Kit Lam
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
| | - Catharina J. Küng
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Marvin Skulsuppaisarn
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Grace Khuu
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
| | - Thanh N. Nguyen
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
| | - Danielle L. Rudler
- Harry Perkins Institute of Medical Research and ARC Centre of Excellence in Synthetic Biology, Nedlands, Western Australia, Australia
- Telethon Kids Institute, Northern Entrance, Perth Children’s Hospital, Nedlands, Western Australia, Australia
| | - Aleksandra Filipovska
- Harry Perkins Institute of Medical Research and ARC Centre of Excellence in Synthetic Biology, Nedlands, Western Australia, Australia
- Telethon Kids Institute, Northern Entrance, Perth Children’s Hospital, Nedlands, Western Australia, Australia
| | - Ralf B. Schittenhelm
- Monash Proteomics and Metabolomics Facility, Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Australia
| | - Michael Lazarou
- Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Melbourne, Australia
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD 20185, USA
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
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8
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Rath E. PKR activation in mitochondrial unfolded protein response-mitochondrial dsRNA might do the trick. Front Cell Dev Biol 2023; 11:1270341. [PMID: 37705516 PMCID: PMC10495569 DOI: 10.3389/fcell.2023.1270341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 08/14/2023] [Indexed: 09/15/2023] Open
Affiliation(s)
- Eva Rath
- Chair of Nutrition and Immunology, Technische Universität München, Freising-Weihenstephan, Germany
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9
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Kraus F, Goodall EA, Smith IR, Jiang Y, Paoli JC, Adolf F, Zhang J, Paulo JA, Schulman BA, Harper JW. PARK15/FBXO7 is dispensable for PINK1/Parkin mitophagy in iNeurons and HeLa cell systems. EMBO Rep 2023:e56399. [PMID: 37334901 PMCID: PMC10398645 DOI: 10.15252/embr.202256399] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 05/16/2023] [Accepted: 06/01/2023] [Indexed: 06/21/2023] Open
Abstract
The protein kinase PINK1 and ubiquitin ligase Parkin promote removal of damaged mitochondria via a feed-forward mechanism involving ubiquitin (Ub) phosphorylation (pUb), Parkin activation, and ubiquitylation of mitochondrial outer membrane proteins to support the recruitment of mitophagy receptors. The ubiquitin ligase substrate receptor FBXO7/PARK15 is mutated in an early-onset parkinsonian-pyramidal syndrome. Previous studies have proposed a role for FBXO7 in promoting Parkin-dependent mitophagy. Here, we systematically examine the involvement of FBXO7 in depolarization and mt UPR-dependent mitophagy in the well-established HeLa and induced-neurons cell systems. We find that FBXO7-/- cells have no demonstrable defect in: (i) kinetics of pUb accumulation, (ii) pUb puncta on mitochondria by super-resolution imaging, (iii) recruitment of Parkin and autophagy machinery to damaged mitochondria, (iv) mitophagic flux, and (v) mitochondrial clearance as quantified by global proteomics. Moreover, global proteomics of neurogenesis in the absence of FBXO7 reveals no obvious alterations in mitochondria or other organelles. These results argue against a general role for FBXO7 in Parkin-dependent mitophagy and point to the need for additional studies to define how FBXO7 mutations promote parkinsonian-pyramidal syndrome.
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Affiliation(s)
- Felix Kraus
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Ellen A Goodall
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
| | - Ian R Smith
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Yizhi Jiang
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Julia C Paoli
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Frank Adolf
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - Jiuchun Zhang
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Joao A Paulo
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
| | - Brenda A Schulman
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
- Department of Molecular Machines and Signaling, Max Planck Institute of Biochemistry, Martinsried, Germany
| | - J Wade Harper
- Department of Cell Biology, Blavatnik Institute, Harvard Medical School, Boston, MA, USA
- Aligning Science Across Parkinson's (ASAP) Collaborative Research Network, Chevy Chase, MD, USA
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10
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Trempe JF, Gehring K. Structural mechanisms of mitochondrial quality control mediated by PINK1 and parkin. J Mol Biol 2023:168090. [PMID: 37054910 DOI: 10.1016/j.jmb.2023.168090] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/31/2023] [Accepted: 04/05/2023] [Indexed: 04/15/2023]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease and represents a looming public health crisis as the global population ages. While the etiology of the more common, idiopathic form of the disease remains unknown, the last ten years have seen a breakthrough in our understanding of the genetic forms related to two proteins that regulate a quality control system for the removal of damaged or non-functional mitochondria. Here, we review the structure of these proteins, PINK1, a protein kinase, and parkin, a ubiquitin ligase with an emphasis on the molecular mechanisms responsible for their recognition of dysfunctional mitochondria and control of the subsequent ubiquitination cascade. Recent atomic structures have revealed the basis of PINK1 substrate specificity and the conformational changes responsible for activation of PINK1 and parkin catalytic activity. Progress in understanding the molecular basis of mitochondrial quality control promises to open new avenues for therapeutic interventions in PD.
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Affiliation(s)
- Jean-François Trempe
- Department of Pharmacology & Therapeutics, McGill University, Montreal, Quebec, Canada; Centre de Recherche en Biologie Structurale
| | - Kalle Gehring
- Department of Biochemistry, McGill University, Montreal, Quebec, Canada; Centre de Recherche en Biologie Structurale
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11
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Kataura T, Otten EG, Rabanal‐Ruiz Y, Adriaenssens E, Urselli F, Scialo F, Fan L, Smith GR, Dawson WM, Chen X, Yue WW, Bronowska AK, Carroll B, Martens S, Lazarou M, Korolchuk VI. NDP52 acts as a redox sensor in PINK1/Parkin-mediated mitophagy. EMBO J 2023; 42:e111372. [PMID: 36514953 PMCID: PMC9975939 DOI: 10.15252/embj.2022111372] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 11/09/2022] [Accepted: 11/11/2022] [Indexed: 12/15/2022] Open
Abstract
Mitophagy, the elimination of mitochondria via the autophagy-lysosome pathway, is essential for the maintenance of cellular homeostasis. The best characterised mitophagy pathway is mediated by stabilisation of the protein kinase PINK1 and recruitment of the ubiquitin ligase Parkin to damaged mitochondria. Ubiquitinated mitochondrial surface proteins are recognised by autophagy receptors including NDP52 which initiate the formation of an autophagic vesicle around the mitochondria. Damaged mitochondria also generate reactive oxygen species (ROS) which have been proposed to act as a signal for mitophagy, however the mechanism of ROS sensing is unknown. Here we found that oxidation of NDP52 is essential for the efficient PINK1/Parkin-dependent mitophagy. We identified redox-sensitive cysteine residues involved in disulphide bond formation and oligomerisation of NDP52 on damaged mitochondria. Oligomerisation of NDP52 facilitates the recruitment of autophagy machinery for rapid mitochondrial degradation. We propose that redox sensing by NDP52 allows mitophagy to function as a mechanism of oxidative stress response.
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Affiliation(s)
- Tetsushi Kataura
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
| | - Elsje G Otten
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
- Present address:
Amphista TherapeuticsCambridgeUK
| | - Yoana Rabanal‐Ruiz
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
- Present address:
Department of Medical Sciences, Faculty of MedicineUniversity of Castilla‐la ManchaCiudad RealSpain
| | - Elias Adriaenssens
- Max Perutz Labs, Vienna BioCenter (VBC)University of ViennaViennaAustria
| | - Francesca Urselli
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
| | - Filippo Scialo
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
- Present address:
Università Degli Studi della Campania “Luigi Vanvitelli”CasertaItaly
| | - Lanyu Fan
- Chemistry – School of Natural and Environmental SciencesNewcastle UniversityNewcastle Upon TyneUK
| | - Graham R Smith
- Bioinformatics Support Unit (BSU), Faculty of Medical SciencesNewcastle UniversityNewcastle Upon TyneUK
| | | | - Xingxiang Chen
- College of Veterinary MedicineNanjing Agricultural UniversityNanjingChina
| | - Wyatt W Yue
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
| | - Agnieszka K Bronowska
- Chemistry – School of Natural and Environmental SciencesNewcastle UniversityNewcastle Upon TyneUK
| | | | - Sascha Martens
- Max Perutz Labs, Vienna BioCenter (VBC)University of ViennaViennaAustria
| | - Michael Lazarou
- Department of Biochemistry and Molecular Biology, Biomedicine Discovery InstituteMonash UniversityMelbourneVICAustralia
- Walter and Eliza Hall Institute of Medical ResearchParkvilleVICAustralia
| | - Viktor I Korolchuk
- Faculty of Medical Sciences, Biosciences InstituteNewcastle UniversityNewcastle Upon TyneUK
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12
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Mitochondrial proteotoxicity: implications and ubiquitin-dependent quality control mechanisms. Cell Mol Life Sci 2022; 79:574. [DOI: 10.1007/s00018-022-04604-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/04/2022] [Accepted: 10/17/2022] [Indexed: 11/27/2022]
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13
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Hu C, Yang J, Qi Z, Wu H, Wang B, Zou F, Mei H, Liu J, Wang W, Liu Q. Heat shock proteins: Biological functions, pathological roles, and therapeutic opportunities. MedComm (Beijing) 2022; 3:e161. [PMID: 35928554 PMCID: PMC9345296 DOI: 10.1002/mco2.161] [Citation(s) in RCA: 89] [Impact Index Per Article: 44.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 06/27/2022] [Accepted: 06/28/2022] [Indexed: 12/12/2022] Open
Abstract
The heat shock proteins (HSPs) are ubiquitous and conserved protein families in both prokaryotic and eukaryotic organisms, and they maintain cellular proteostasis and protect cells from stresses. HSP protein families are classified based on their molecular weights, mainly including large HSPs, HSP90, HSP70, HSP60, HSP40, and small HSPs. They function as molecular chaperons in cells and work as an integrated network, participating in the folding of newly synthesized polypeptides, refolding metastable proteins, protein complex assembly, dissociating protein aggregate dissociation, and the degradation of misfolded proteins. In addition to their chaperone functions, they also play important roles in cell signaling transduction, cell cycle, and apoptosis regulation. Therefore, malfunction of HSPs is related with many diseases, including cancers, neurodegeneration, and other diseases. In this review, we describe the current understandings about the molecular mechanisms of the major HSP families including HSP90/HSP70/HSP60/HSP110 and small HSPs, how the HSPs keep the protein proteostasis and response to stresses, and we also discuss their roles in diseases and the recent exploration of HSP related therapy and diagnosis to modulate diseases. These research advances offer new prospects of HSPs as potential targets for therapeutic intervention.
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Affiliation(s)
- Chen Hu
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Jing Yang
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Ziping Qi
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Hong Wu
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Beilei Wang
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Fengming Zou
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China
| | - Husheng Mei
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,University of Science and Technology of China Hefei Anhui P. R. China
| | - Jing Liu
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China.,University of Science and Technology of China Hefei Anhui P. R. China
| | - Wenchao Wang
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China.,University of Science and Technology of China Hefei Anhui P. R. China
| | - Qingsong Liu
- Anhui Province Key Laboratory of Medical Physics and Technology Institute of Health and Medical Technology Hefei Institutes of Physical Science Chinese Academy of Sciences Hefei Anhui P. R. China.,Hefei Cancer Hospital Chinese Academy of Sciences Hefei Anhui P. R. China.,University of Science and Technology of China Hefei Anhui P. R. China.,Precision Medicine Research Laboratory of Anhui Province Hefei Anhui P. R. China
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14
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Li C, Pan Y, Tan Y, Wang Y, Sun X. PINK1-Dependent Mitophagy Reduced Endothelial Hyperpermeability and Cell Migration Capacity Under Simulated Microgravity. Front Cell Dev Biol 2022; 10:896014. [PMID: 35874841 PMCID: PMC9300855 DOI: 10.3389/fcell.2022.896014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022] Open
Abstract
The effect of cardiovascular dysfunction including orthostatic intolerance and disability on physical exercise is one of the health problems induced by long-term spaceflight astronauts face. As an important part of vascular structure, the vascular endothelium, uniquely sensitive to mechanical force, plays a pivotal role in coordinating vascular functions. Our study found that simulated microgravity induced PINK1-dependent mitophagy in human umbilical vein endothelial cells (HUVECs). Here, we explored the underlying mechanism of mitophagy induction. The ER stress induced by proteostasis failure in HUVECs promoted the Ca2+ transfer from ER to mitochondria, resulting in mitochondria Ca2+ overload, decreased mitochondrial membrane potential, mitochondria fission, and accumulation of Parkin and p62 in mitochondria and mitophagy under simulated microgravity. Moreover, we assumed that mitophagy played a vital role in functional changes in endothelial cells under simulated microgravity. Using mdivi-1 and PINK1 knockdown, we found that NLRP3 inflammasome activation was enhanced after mitophagy was inhibited. The NLRP3 inflammasome contributed to endothelial hyperpermeability and cellular migration by releasing IL-1β. Thus, mitophagy inhibited cell migration ability and hyperpermeability in HUVECs exposed to clinostat-simulated microgravity. Collectively, we here clarify the mechanism of mitophagy induction by simulated microgravity in vitro and demonstrate the relationship between mitophagy and vascular endothelial functional changes including cellular migration and permeability. This study deepens the understanding of vascular functional changes under microgravity.
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Affiliation(s)
- Chengfei Li
- Department of Aerospace Medical Training, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
| | - Yikai Pan
- Department of Aerospace Medical Training, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
| | - Yingjun Tan
- China Astronaut Research and Training Center, Beijing, China
| | - Yongchun Wang
- Department of Aerospace Medical Training, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
- *Correspondence: Xiqing Sun, , Yongchun Wang,
| | - Xiqing Sun
- Department of Aerospace Medical Training, School of Aerospace Medicine, Fourth Military Medical University, Xi’an, China
- *Correspondence: Xiqing Sun, , Yongchun Wang,
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15
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Wengert LA, Backe SJ, Bourboulia D, Mollapour M, Woodford MR. TRAP1 Chaperones the Metabolic Switch in Cancer. Biomolecules 2022; 12:biom12060786. [PMID: 35740911 PMCID: PMC9221471 DOI: 10.3390/biom12060786] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/02/2022] [Accepted: 06/02/2022] [Indexed: 12/12/2022] Open
Abstract
Mitochondrial function is dependent on molecular chaperones, primarily due to their necessity in the formation of respiratory complexes and clearance of misfolded proteins. Heat shock proteins (Hsps) are a subset of molecular chaperones that function in all subcellular compartments, both constitutively and in response to stress. The Hsp90 chaperone TNF-receptor-associated protein-1 (TRAP1) is primarily localized to the mitochondria and controls both cellular metabolic reprogramming and mitochondrial apoptosis. TRAP1 upregulation facilitates the growth and progression of many cancers by promoting glycolytic metabolism and antagonizing the mitochondrial permeability transition that precedes multiple cell death pathways. TRAP1 attenuation induces apoptosis in cellular models of cancer, identifying TRAP1 as a potential therapeutic target in cancer. Similar to cytosolic Hsp90 proteins, TRAP1 is also subject to post-translational modifications (PTM) that regulate its function and mediate its impact on downstream effectors, or ‘clients’. However, few effectors have been identified to date. Here, we will discuss the consequence of TRAP1 deregulation in cancer and the impact of post-translational modification on the known functions of TRAP1.
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Affiliation(s)
- Laura A. Wengert
- Department of Urology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; (L.A.W.); (S.J.B.); (D.B.); (M.M.)
- Upstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Sarah J. Backe
- Department of Urology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; (L.A.W.); (S.J.B.); (D.B.); (M.M.)
- Upstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Dimitra Bourboulia
- Department of Urology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; (L.A.W.); (S.J.B.); (D.B.); (M.M.)
- Upstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Mehdi Mollapour
- Department of Urology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; (L.A.W.); (S.J.B.); (D.B.); (M.M.)
- Upstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
| | - Mark R. Woodford
- Department of Urology, SUNY Upstate Medical University, Syracuse, NY 13210, USA; (L.A.W.); (S.J.B.); (D.B.); (M.M.)
- Upstate Cancer Center, SUNY Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, SUNY Upstate Medical University, Syracuse, NY 13210, USA
- Correspondence:
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16
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Pan- and isoform-specific inhibition of Hsp90: Design strategy and recent advances. Eur J Med Chem 2022; 238:114516. [DOI: 10.1016/j.ejmech.2022.114516] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 06/01/2022] [Accepted: 06/02/2022] [Indexed: 12/11/2022]
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17
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GrpEL1 Regulates Mitochondrial Unfolded Protein Response after Experimental Subarachnoid Hemorrhage in vivo and in vitro. Brain Res Bull 2022; 181:97-108. [DOI: 10.1016/j.brainresbull.2022.01.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 12/24/2021] [Accepted: 01/22/2022] [Indexed: 12/15/2022]
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18
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Ramirez A, Old W, Selwood DL, Liu X. Cannabidiol activates PINK1-Parkin-dependent mitophagy and mitochondrial-derived vesicles. Eur J Cell Biol 2022; 101:151185. [PMID: 34915361 PMCID: PMC8816654 DOI: 10.1016/j.ejcb.2021.151185] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 10/27/2021] [Accepted: 11/12/2021] [Indexed: 11/30/2022] Open
Abstract
The PINK1/Parkin pathway plays an important role in maintaining a healthy pool of mitochondria. Activation of this pathway can lead to apoptosis, mitophagy, or mitochondrial-derived vesicle formation, depending on the nature of mitochondrial damage. The signaling by which PINK/Parkin activation leads to these different mitochondrial outcomes remains understudied. Here we present evidence that cannabidiol (CBD) activates the PINK1-Parkin pathway in a unique manner. CBD stimulates PINK1-dependent Parkin mitochondrial recruitment similarly to other well-studied Parkin activators but with a distinctive shift in the temporal dynamics and mitochondrial fates. The mitochondrial permeability transition pore inhibitor cyclosporine A exclusively diminished the CBD-induced PINK1/Parkin activation and its associated mitochondrial effects. Unexpectedly, CBD treatment also induced elevated production of mitochondrial-derived vesicles (MDV), a potential quality control mechanism that may help repair partial damaged mitochondria. Our results suggest that CBD may engage the PINK1-Parkin pathway to produce MDV and repair mitochondrial lesions via mitochondrial permeability transition pore opening. This work uncovered a novel link between CBD and PINK1/Parkin-dependent MDV production in mitochondrial health regulation.
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Affiliation(s)
- Adrian Ramirez
- Department of Biochemistry, University of Colorado, Boulder, CO 80303, USA; Department of MCD-Biology, University of Colorado, Boulder, CO 80309, USA
| | - William Old
- Department of Biochemistry, University of Colorado, Boulder, CO 80303, USA; Department of MCD-Biology, University of Colorado, Boulder, CO 80309, USA
| | - David L Selwood
- Wolfson Institute for Biomedical Research, University College London, Gower Street, WC1E6AE, United Kingdom
| | - Xuedong Liu
- Department of Biochemistry, University of Colorado, Boulder, CO 80303, USA.
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19
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TRAP1 in Oxidative Stress and Neurodegeneration. Antioxidants (Basel) 2021; 10:antiox10111829. [PMID: 34829705 PMCID: PMC8614808 DOI: 10.3390/antiox10111829] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/13/2021] [Accepted: 11/15/2021] [Indexed: 12/22/2022] Open
Abstract
Tumor necrosis factor receptor-associated protein 1 (TRAP1), also known as heat shock protein 75 (HSP75), is a member of the heat shock protein 90 (HSP90) chaperone family that resides mainly in the mitochondria. As a mitochondrial molecular chaperone, TRAP1 supports protein folding and contributes to the maintenance of mitochondrial integrity even under cellular stress. TRAP1 is a cellular regulator of mitochondrial bioenergetics, redox homeostasis, oxidative stress-induced cell death, apoptosis, and unfolded protein response (UPR) in the endoplasmic reticulum (ER). TRAP1 has attracted increasing interest as a therapeutical target, with a special focus on the design of TRAP1 specific inhibitors. Although TRAP1 was extensively studied in the oncology field, its role in central nervous system cells, under physiological and pathological conditions, remains largely unknown. In this review, we will start by summarizing the biology of TRAP1, including its structure and related pathways. Thereafter, we will continue by debating the role of TRAP1 in the maintenance of redox homeostasis and protection against oxidative stress and apoptosis. The role of TRAP1 in neurodegenerative disorders will also be discussed. Finally, we will review the potential of TRAP1 inhibitors as neuroprotective drugs.
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20
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Ali A, Abdellattif MH, Ali A, AbuAli O, Shahbaaz M, Ahsan MJ, Hussien MA. Computational Approaches for the Design of Novel Anticancer Compounds Based on Pyrazolo[3,4-d]pyrimidine Derivatives as TRAP1 Inhibitor. Molecules 2021; 26:molecules26195932. [PMID: 34641473 PMCID: PMC8512242 DOI: 10.3390/molecules26195932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 09/23/2021] [Accepted: 09/23/2021] [Indexed: 11/17/2022] Open
Abstract
In the present in-silico study, various computational techniques were applied to determine potent compounds against TRAP1 kinase. The pharmacophore hypothesis DHHRR_1 consists of important features required for activity. The 3D QSAR study showed a statistically significant model with R2 = 0.96 and Q2 = 0.57. Leave one out (LOO) cross-validation (R2 CV = 0.58) was used to validate the QSAR model. The molecular docking study showed maximum XP docking scores (−11.265, −10.532, −10.422, −10.827, −10.753 kcal/mol) for potent pyrazole analogs (42, 46, 49, 56, 43), respectively, with significant interactions with amino acid residues (ASP 594, CYS 532, PHE 583, SER 536) against TRAP1 kinase receptors (PDB ID: 5Y3N). Furthermore, the docking results were validated using the 100 ns MD simulations performed for the selected five docked complexes. The selected inhibitors showed relatively higher binding affinities than the TRAP1 inhibitor molecules present in the literature. The ZINC database was used for a virtual screening study that screened ZINC05297837, ZINC05434822, and ZINC72286418, which showed similar binding interactions to those shown by potent ligands. Absorption, distribution, metabolism, and excretion (ADME) analysis showed noticeable results. The results of the study may be helpful for the further development of potent TRAP1 inhibitors
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Affiliation(s)
- Amena Ali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Correspondence: (A.A.); (M.H.A.)
| | - Magda H. Abdellattif
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
- Correspondence: (A.A.); (M.H.A.)
| | - Abuzer Ali
- Department of Pharmacognosy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Ola AbuAli
- Department of Chemistry, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia;
| | - Mohd Shahbaaz
- South African Medical Research Council Bioinformatics Institute, University of Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa;
- Laboratory of Computational Modelling of Drugs, South Ural State University, 76 Lenin Prospects, 454080 Chelyabinsk, Russia
| | - Mohamed Jawed Ahsan
- Department of Pharmaceutical Chemistry, Maharishi Arvind College of Pharmacy, Ambabari Circle, Jaipur 302039, India;
| | - Mostafa A. Hussien
- Department of Chemistry, Faculty of Science, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia;
- Department of Chemistry, Faculty of Science, Port Said University, Port Said 42521, Egypt
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21
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Abstract
Cells use mitophagy to remove dysfunctional or excess mitochondria, frequently in response to imposed stresses, such as hypoxia and nutrient deprivation. Mitochondrial cargo receptors (MCR) induced by these stresses target mitochondria to autophagosomes through interaction with members of the LC3/GABARAP family. There are a growing number of these MCRs, including BNIP3, BNIP3L, FUNDC1, Bcl2-L-13, FKBP8, Prohibitin-2, and others, in addition to mitochondrial protein targets of PINK1/Parkin phospho-ubiquitination. There is also an emerging link between mitochondrial lipid signaling and mitophagy where ceramide, sphingosine-1-phosphate, and cardiolipin have all been shown to promote mitophagy. Here, we review the upstream signaling mechanisms that regulate mitophagy, including components of the mitochondrial fission machinery, AMPK, ATF4, FoxOs, Sirtuins, and mtDNA release, and address the significance of these pathways for stress responses in tumorigenesis and metastasis. In particular, we focus on how mitophagy modulators intersect with cell cycle control and survival pathways in cancer, including following ECM detachment and during cell migration and metastasis. Finally, we interrogate how mitophagy affects tissue atrophy during cancer cachexia and therapy responses in the clinic.
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Affiliation(s)
- Logan P Poole
- The Ben May Department for Cancer Research, The Gordon Center for Integrative Sciences, W-338, The University of Chicago, 929 E 57th Street, Chicago, IL, 60637, USA
- The Committee on Cancer Biology, The University of Chicago, Chicago, USA
| | - Kay F Macleod
- The Ben May Department for Cancer Research, The Gordon Center for Integrative Sciences, W-338, The University of Chicago, 929 E 57th Street, Chicago, IL, 60637, USA.
- The Committee on Cancer Biology, The University of Chicago, Chicago, USA.
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22
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Nguyen J, Tirla A, Rivera-Fuentes P. Disruption of mitochondrial redox homeostasis by enzymatic activation of a trialkylphosphine probe. Org Biomol Chem 2021; 19:2681-2687. [PMID: 33634293 DOI: 10.1039/d0ob02259d] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Redox homeostasis is essential for cell function and its disruption is associated with multiple pathologies. Redox balance is largely regulated by the relative concentrations of reduced and oxidized glutathione. In eukaryotic cells, this ratio is different in each cell compartment, and disruption of the mitochondrial redox balance has been specifically linked to metabolic diseases. Here, we report a probe that is selectively activated by endogenous nitroreductases, and releases tributylphosphine to trigger redox stress in mitochondria. Mechanistic studies revealed that, counterintuitively, release of a reducing agent in mitochondria rapidly induced oxidative stress through accumulation of superoxide. This response is mediated by glutathione, suggesting a link between reductive and oxidative stress. Furthermore, mitochondrial redox stress activates a cellular response orchestrated by transcription factor ATF4, which upregulates genes involved in glutathione catabolism.
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Affiliation(s)
- Jade Nguyen
- Laboratory of Organic Chemistry, ETH Zurich, Vladimir-Prelog-Weg 3, 8093 Zurich, Switzerland.
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23
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Dash R, Jahan I, Ali MC, Mitra S, Munni YA, Timalsina B, Hannan MA, Moon IS. Potential roles of natural products in the targeting of proteinopathic neurodegenerative diseases. Neurochem Int 2021; 145:105011. [PMID: 33711400 DOI: 10.1016/j.neuint.2021.105011] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 12/14/2022]
Abstract
Defective proteostasis is associated with the gradual accumulations of misfolded proteins and is a hallmark of many age-associated neurodegenerative diseases. In the aged brain, maintenance of the proteostasis network presents a substantial challenge, and its loss contributes to the onset and progression of neurological diseases associated with cognitive decline due to the generation of toxic protein aggregates, a process termed 'proteinopathy'. Emerging evidence suggests that reversing proteinopathies by boosting proteostasis might provide an effective means of preventing neurodegeneration. From this perspective, phytochemicals may play significant roles as potent modulators of the proteostasis network, as previous reports have suggested they can interact with various network components to modify pathologies and confer neuroprotection. This review focuses on some potent phytochemicals that directly or indirectly modulate the proteostasis network and on their possible molecular targets. In addition, we propose strategies for the natural product-based modulation of proteostasis machinery that target proteinopathies.
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Affiliation(s)
- Raju Dash
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Israt Jahan
- Department of Pharmacy, Faculty of Life and Earth Sciences, Jagannath University, Dhaka, 1100, Bangladesh
| | - Md Chayan Ali
- Department of Biotechnology and Genetic Engineering, Faculty of Biological Sciences, Islamic University, Kushtia, 7003, Bangladesh
| | - Sarmistha Mitra
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Yeasmin Akter Munni
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Binod Timalsina
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea
| | - Md Abdul Hannan
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea; Department of Biochemistry and Molecular Biology, Bangladesh Agricultural University, Mymensingh, 2202, Bangladesh
| | - Il Soo Moon
- Department of Anatomy, Dongguk University College of Medicine, Gyeongju, 38066, Republic of Korea.
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24
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Schmidt MF, Gan ZY, Komander D, Dewson G. Ubiquitin signalling in neurodegeneration: mechanisms and therapeutic opportunities. Cell Death Differ 2021; 28:570-590. [PMID: 33414510 PMCID: PMC7862249 DOI: 10.1038/s41418-020-00706-7] [Citation(s) in RCA: 177] [Impact Index Per Article: 59.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 02/06/2023] Open
Abstract
Neurodegenerative diseases are characterised by progressive damage to the nervous system including the selective loss of vulnerable populations of neurons leading to motor symptoms and cognitive decline. Despite millions of people being affected worldwide, there are still no drugs that block the neurodegenerative process to stop or slow disease progression. Neuronal death in these diseases is often linked to the misfolded proteins that aggregate within the brain (proteinopathies) as a result of disease-related gene mutations or abnormal protein homoeostasis. There are two major degradation pathways to rid a cell of unwanted or misfolded proteins to prevent their accumulation and to maintain the health of a cell: the ubiquitin–proteasome system and the autophagy–lysosomal pathway. Both of these degradative pathways depend on the modification of targets with ubiquitin. Aging is the primary risk factor of most neurodegenerative diseases including Alzheimer’s disease, Parkinson’s disease and amyotrophic lateral sclerosis. With aging there is a general reduction in proteasomal degradation and autophagy, and a consequent increase of potentially neurotoxic protein aggregates of β-amyloid, tau, α-synuclein, SOD1 and TDP-43. An often over-looked yet major component of these aggregates is ubiquitin, implicating these protein aggregates as either an adaptive response to toxic misfolded proteins or as evidence of dysregulated ubiquitin-mediated degradation driving toxic aggregation. In addition, non-degradative ubiquitin signalling is critical for homoeostatic mechanisms fundamental for neuronal function and survival, including mitochondrial homoeostasis, receptor trafficking and DNA damage responses, whilst also playing a role in inflammatory processes. This review will discuss the current understanding of the role of ubiquitin-dependent processes in the progressive loss of neurons and the emergence of ubiquitin signalling as a target for the development of much needed new drugs to treat neurodegenerative disease. ![]()
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Affiliation(s)
- Marlene F Schmidt
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Melbourne, VIC, 3052, Australia.,Department of Medical Biology, University of Melbourne, Royal Parade, Melbourne, VIC, 3052, Australia
| | - Zhong Yan Gan
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Melbourne, VIC, 3052, Australia.,Department of Medical Biology, University of Melbourne, Royal Parade, Melbourne, VIC, 3052, Australia
| | - David Komander
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Melbourne, VIC, 3052, Australia.,Department of Medical Biology, University of Melbourne, Royal Parade, Melbourne, VIC, 3052, Australia
| | - Grant Dewson
- The Walter and Eliza Hall Institute of Medical Research, 1G Royal Parade, Melbourne, VIC, 3052, Australia. .,Department of Medical Biology, University of Melbourne, Royal Parade, Melbourne, VIC, 3052, Australia.
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25
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Dhanasekaran S, Venugopal D, Al-Dayan N, Ravinayagam V, Mohammed AA. Emerging insights into mitochondria-specific targeting and drug delivering strategies: Recent milestones and therapeutic implications. Saudi J Biol Sci 2020; 27:3581-3592. [PMID: 33304169 PMCID: PMC7714987 DOI: 10.1016/j.sjbs.2020.07.030] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 07/23/2020] [Accepted: 07/25/2020] [Indexed: 11/27/2022] Open
Abstract
Mitochondria are a major intracellular organelle for drug targeting due to its functional roles in cellular metabolism and cell signaling for proliferation and cell death. Mitochondria-targeted treatment strategy could be promising to improve the therapeutic efficacy of cancer while minimizing the adverse side effects. Over the last decades, several studies have explored and focused on mitochondrial functions, which has led to the emergence of mitochondria-specific therapies. Molecules in the mitochondria are considered to be prime targets, and a wide range of molecular strategies have been designed for targeting mitochondria compared with that of the cytosol. In this review, we focused on the molecular mechanisms of mitochondria-specific ligand targeting and selective drug action strategies for targeting mitochondria, including those premised on mitochondrial targeting of signal peptides (MTS), cell-penetrating peptides (CPPs), and use of lipophilic cations. Furthermore, most research has concentrated on specific conjugation of ligands to therapeutic molecules to enhance their effectiveness. There are several variations for the ideal design and development for mitochondrial-targeted drugs, such as selecting a suitable ligand and linker targets. However, some challenges related to drug solubility and selectivity could be resolved using the nanocarrier system. Nanoparticles yield excellent advantages for targeting and transmitting therapeutic drugs, and they offer elegant platforms for mitochondria-specific drug delivery. We explain many of the advanced and proven strategies for multifunctional mitochondria-specific targets, which should contribute to achieving better anticancer therapies in a promising future.
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Affiliation(s)
- Sugapriya Dhanasekaran
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Wadi-Al Dawaser, Riyadh, Saudi Arabia
| | - Divya Venugopal
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Wadi-Al Dawaser, Riyadh, Saudi Arabia
| | - Noura Al-Dayan
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam Bin Abdulaziz University, Al Kharj, Riyadh, Saudi Arabia
| | - Vijaya Ravinayagam
- Deanship of Scientific Research & Department of Nano-Medicine Research, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - Arif Ahmed Mohammed
- Center of Excellence in Biotechnology Research, Department of Biochemistry, College of Science Building-5, King Saud University, Riyadh 11451, Saudi Arabia
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26
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Killackey SA, Philpott DJ, Girardin SE. Mitophagy pathways in health and disease. J Cell Biol 2020; 219:e202004029. [PMID: 32926082 PMCID: PMC7594502 DOI: 10.1083/jcb.202004029] [Citation(s) in RCA: 113] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/12/2020] [Accepted: 08/13/2020] [Indexed: 02/07/2023] Open
Abstract
Mitophagy is an evolutionarily conserved process involving the autophagic targeting and clearance of mitochondria destined for removal. Recent insights into the complex nature of the overlapping pathways regulating mitophagy illustrate mitophagy's essential role in maintaining the health of the mitochondrial network. In this review, we highlight recent studies that have changed the way mitophagy is understood, from initiation through lysosomal degradation. We outline the numerous mitophagic receptors and triggers, with a focus on basal and physiologically relevant cues, offering insight into why they lead to mitochondrial removal. We also explore how mitophagy maintains mitochondrial homeostasis at the organ and system levels and how a loss of mitophagy may play a role in a diverse group of diseases, including cardiovascular, metabolic, and neurodegenerative diseases. With disrupted mitophagy affecting such a wide array of physiological processes, a deeper understanding of how to modulate mitophagy could provide avenues for numerous therapies.
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Affiliation(s)
- Samuel A. Killackey
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Dana J. Philpott
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Stephen E. Girardin
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
- Department of Immunology, University of Toronto, Toronto, Ontario, Canada
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27
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Urbina-Varela R, Castillo N, Videla LA, del Campo A. Impact of Mitophagy and Mitochondrial Unfolded Protein Response as New Adaptive Mechanisms Underlying Old Pathologies: Sarcopenia and Non-Alcoholic Fatty Liver Disease. Int J Mol Sci 2020; 21:E7704. [PMID: 33081022 PMCID: PMC7589512 DOI: 10.3390/ijms21207704] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/08/2020] [Accepted: 10/12/2020] [Indexed: 12/12/2022] Open
Abstract
Mitochondria are the first-line defense of the cell in the presence of stressing processes that can induce mitochondrial dysfunction. Under these conditions, the activation of two axes is accomplished, namely, (i) the mitochondrial unfolded protein response (UPRmt) to promote cell recovery and survival of the mitochondrial network; (ii) the mitophagy process to eliminate altered or dysfunctional mitochondria. For these purposes, the former response induces the expression of chaperones, proteases, antioxidant components and protein import and assembly factors, whereas the latter is signaled through the activation of the PINK1/Parkin and BNIP3/NIX pathways. These adaptive mechanisms may be compromised during aging, leading to the development of several pathologies including sarcopenia, defined as the loss of skeletal muscle mass and performance; and non-alcoholic fatty liver disease (NAFLD). These age-associated diseases are characterized by the progressive loss of organ function due to the accumulation of reactive oxygen species (ROS)-induced damage to biomolecules, since the ability to counteract the continuous and large generation of ROS becomes increasingly inefficient with aging, resulting in mitochondrial dysfunction as a central pathogenic mechanism. Nevertheless, the role of the integrated stress response (ISR) involving UPRmt and mitophagy in the development and progression of these illnesses is still a matter of debate, considering that some studies indicate that the prolonged exposure to low levels of stress may trigger these mechanisms to maintain mitohormesis, whereas others sustain that chronic activation of them could lead to cell death. In this review, we discuss the available research that contributes to unveil the role of the mitochondrial UPR in the development of sarcopenia, in an attempt to describe changes prior to the manifestation of severe symptoms; and in NAFLD, in order to prevent or reverse fat accumulation and its progression by means of suitable protocols to be addressed in future studies.
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Affiliation(s)
- Rodrigo Urbina-Varela
- Laboratorio de Fisiología y Bioenergética Celular, Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile; (R.U.-V.); (N.C.)
| | - Nataly Castillo
- Laboratorio de Fisiología y Bioenergética Celular, Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile; (R.U.-V.); (N.C.)
| | - Luis A. Videla
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago 8380453, Chile;
| | - Andrea del Campo
- Laboratorio de Fisiología y Bioenergética Celular, Departamento de Farmacia, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Santiago 7810000, Chile; (R.U.-V.); (N.C.)
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28
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Yang X, Zhang R, Nakahira K, Gu Z. Mitochondrial DNA Mutation, Diseases, and Nutrient-Regulated Mitophagy. Annu Rev Nutr 2020; 39:201-226. [PMID: 31433742 DOI: 10.1146/annurev-nutr-082018-124643] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A wide spectrum of human diseases, including cancer, neurodegenerative diseases, and metabolic disorders, have been shown to be associated with mitochondrial dysfunction through multiple molecular mechanisms. Mitochondria are particularly susceptible to nutrient deficiencies, and nutritional intervention is an essential way to maintain mitochondrial homeostasis. Recent advances in genetic manipulation and next-generation sequencing reveal the crucial roles of mitochondrial DNA (mtDNA) in various pathophysiological conditions. Mitophagy, a term coined to describe autophagy that targets dysfunctional mitochondria, has emerged as an important cellular process to maintain mitochondrial homeostasis and has been shown to be regulated by various nutrients and nutritional stresses. Given the high prevalence of mtDNA mutations in humans and their impact on mitochondrial function, it is important to investigate the mechanisms that regulate mtDNA mutation. Here, we discuss mitochondrial genetics and mtDNA mutations and their implications for human diseases. We also examine the role of mitophagy as a therapeutic target, highlighting how nutrients may eliminate mtDNA mutations through mitophagy.
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Affiliation(s)
- Xuan Yang
- Division of Nutritional Sciences, Cornell University, Ithaca, New York 14853, USA; , ,
| | - Ruoyu Zhang
- Division of Nutritional Sciences, Cornell University, Ithaca, New York 14853, USA; , ,
| | - Kiichi Nakahira
- Division of Pulmonary and Critical Care Medicine, Joan and Sanford I. Weill Department of Medicine, Weill Cornell Medicine, New York, NY 10065, USA;
| | - Zhenglong Gu
- Division of Nutritional Sciences, Cornell University, Ithaca, New York 14853, USA; , ,
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29
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Corti O, Blomgren K, Poletti A, Beart PM. Autophagy in neurodegeneration: New insights underpinning therapy for neurological diseases. J Neurochem 2020; 154:354-371. [PMID: 32149395 DOI: 10.1111/jnc.15002] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 02/27/2020] [Accepted: 03/05/2020] [Indexed: 12/13/2022]
Abstract
In autophagy long-lived proteins, protein aggregates or damaged organelles are engulfed by vesicles called autophagosomes prior to lysosomal degradation. Autophagy dysfunction is a hallmark of several neurodegenerative diseases in which misfolded proteins or dysfunctional mitochondria accumulate. Excessive autophagy can also exacerbate brain injury under certain conditions. In this review, we provide specific examples to illustrate the critical role played by autophagy in pathological conditions affecting the brain and discuss potential therapeutic implications. We show how a singular type of autophagy-dependent cell death termed autosis has attracted attention as a promising target for improving outcomes in perinatal asphyxia and hypoxic-ischaemic injury to the immature brain. We provide evidence that autophagy inhibition may be protective against radiotherapy-induced damage to the young brain. We describe a specialized form of macroautophagy of therapeutic relevance for motoneuron and neuromuscular diseases, known as chaperone-assisted selective autophagy, in which heat shock protein B8 is used to deliver aberrant proteins to autophagosomes. We summarize studies pinpointing mitophagy mediated by the serine/threonine kinase PINK1 and the ubiquitin-protein ligase Parkin as a mechanism potentially relevant to Parkinson's disease, despite debate over the physiological conditions in which it is activated in organisms. Finally, with the example of the autophagy-inducing agent rilmenidine and its discrepant effects in cell culture and mouse models of motor neuron disorders, we illustrate the importance of considering aspects such a disease stage and aggressiveness, type of insult and load of damaged or toxic cellular components, when choosing the appropriate drug, timepoint and duration of treatment.
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Affiliation(s)
- Olga Corti
- Institut National de la Santé et de la Recherche Médicale, Paris, France.,Centre National de la Recherche Scientifique, Paris, France.,Sorbonne Universités, Paris, France.,Institut du Cerveau et de la Moelle épinière, ICM, Paris, France
| | - Klas Blomgren
- Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden.,Department of Paediatric Oncology, Karolinska University Hospital, Stockholm, Sweden
| | - Angelo Poletti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Centro di Eccellenza sulle Malattie Neurodegenerative, Università degli Studi di Milano, Milan, Italy
| | - Philip M Beart
- Florey Institute of Neuroscience and Mental Health, University of Melbourne, Parkville, Vic, Australia.,Department of Pharmacology, University of Melbourne, Parkville, Vic, Australia
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30
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Corti O. Neuronal Mitophagy: Lessons from a Pathway Linked to Parkinson's Disease. Neurotox Res 2019; 36:292-305. [PMID: 31102068 DOI: 10.1007/s12640-019-00060-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 04/17/2019] [Accepted: 05/06/2019] [Indexed: 02/06/2023]
Abstract
Neurons are specialized cells with complex and extended architecture and high energy requirements. Energy in the form of adenosine triphosphate, produced essentially by mitochondrial respiration, is necessary to preserve neuronal morphology, maintain resting potential, fire action potentials, and ensure neurotransmission. Pools of functional mitochondria are required in all neuronal compartments, including cell body and dendrites, nodes of Ranvier, growth cones, axons, and synapses. The mechanisms by which old or damaged mitochondria are removed and replaced in neurons remain to be fully understood. Mitophagy has gained considerable interest since the discovery of familial forms of Parkinson's disease caused by dysfunction of PINK1 and Parkin, two multifunctional proteins cooperating in the regulation of this process. Over the past 10 years, the molecular mechanisms by which PINK1 and Parkin jointly promote the degradation of defective mitochondria by autophagy have been dissected. However, our understanding of the relevance of mitophagy to mitochondrial homeostasis in neurons remains poor. Insight has been recently gained thanks to the development of fluorescent reporter systems for tracking mitochondria in the acidic compartment of the lysosome. Using these tools, mitophagy events have been visualized in primary neurons in culture and in vivo, under basal conditions and in response to toxic insults. Despite these advances, whether PINK1 and Parkin play a major role in promoting neuronal mitophagy under physiological conditions in adult animals and during aging remains a matter of debate. Future studies will have to clarify in how far dysfunction of neuronal mitophagy is central to the pathophysiology of Parkinson's disease.
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Affiliation(s)
- Olga Corti
- Institut du Cerveau et de la Moelle épinière, ICM, F-75013, Paris, France.
- Inserm, U1127, F-75013, Paris, France.
- CNRS, UMR 7225, F-75013, Paris, France.
- Sorbonne Universités, F-75013, Paris, France.
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31
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Narayanankutty V, Narayanankutty A, Nair A. Heat Shock Proteins (HSPs): A Novel Target for Cancer Metastasis Prevention. Curr Drug Targets 2019; 20:727-737. [DOI: 10.2174/1389450120666181211111815] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/11/2018] [Accepted: 11/27/2018] [Indexed: 02/08/2023]
Abstract
Background:
Heat shock proteins (HSPs) are predominant molecular chaperones which are
actively involved in the protein folding; which is essential in protecting the structure and functioning
of proteins during various stress conditions. Though HSPs have important physiological roles, they
have been well known for their roles in various pathogenic conditions such as carcinogenesis; however,
limited literature has consolidated its potential as an anti-metastatic drug target.
Objectives:
The present review outlines the role of different HSPs on cancer progression and metastasis;
possible role of HSP inhibitors as anti-neoplastic agents is also discussed.
Methods:
The data were collected from PubMed/Medline and other reputed journal databases. The literature
that was too old and had no significant role to the review was then omitted.
Results:
Despite their strong physiological functions, HSPs are considered as good markers for cancer
prognosis and diagnosis. They have control over survival, proliferation and progression events of cancer
including drug resistance, metastasis, and angiogenesis. Since, neoplastic cells are more dependent
on HSPs for survival and proliferation, the selectivity and specificity of HSP-targeted cancer drugs
remain high. This has made various HSPs potential clinical and experimental targets for cancer prevention.
An array of HSP inhibitors has been in trials and many others are in experimental conditions
as anticancer and anti-metastatic agents. Several natural products are also being investigated for their
efficacy for anticancer and anti-metastatic agents by modulating HSPs.
Conclusion:
Apart from their role as an anticancer drug target, HSPs have shown to be promising targets
for the prevention of cancer progression. Extensive studies are required for the use of these molecules
as anti-metastatic agents. Further studies in this line may yield specific and effective antimetastatic
agents.
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Affiliation(s)
| | - Arunaksharan Narayanankutty
- Postgraduate & Research Department of Zoology, St. Joseph’s College, Devagiri (Autonomous), Calicut, Kerala- 673 008, India
| | - Anusree Nair
- Cell and Tissue Culture Department, Micro labs, Bangalore, India
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32
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Dong J, Hong D, Lang W, Huang J, Qian L, Zhu Q, Li L, Ge J. Differently Tagged Probes for Protein Profiling of Mitochondria. Chembiochem 2019; 20:1155-1160. [PMID: 30600897 DOI: 10.1002/cbic.201800735] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Indexed: 11/10/2022]
Abstract
The mitochondrion is one of the most important organelles in the eukaryotic cell. Characterization of the mitochondrial proteome is a prerequisite for understanding its cellular functions at the molecular level. Here we report a proteomics method based on mitochondrion-targeting groups and click chemistry. In our strategy, three different mitochondrion-targeting moieties were each augmented with a clickable handle and a cysteine-reactive group. Fluorescence-based bioimaging and fractionation experiments clearly showed that most signals arising from the labels were localized in the mitochondria of cells, as a result of covalent attachment between probe and target proteins. The three probes had distinct profiling characteristics. Furthermore, we successfully identified more than two hundred mitochondrial proteins. The results showed that different mitochondrion-targeting groups targeted distinct proteins with partial overlap. Most of the labeled proteins were localized in the mitochondrial matrix and inner mitochondrial membrane. Our results provide a tool for chemoproteomic analysis of mitochondrion-related proteins.
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Affiliation(s)
- Jia Dong
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Danqi Hong
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Wenjie Lang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Jintao Huang
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Linghui Qian
- Institute of Drug Metabolism and Pharmaceutical Analysis, College of Pharmaceutical Sciences, Zhejiang University, 866 Yuhangtang Road, Hangzhou, 310058, China
| | - Qing Zhu
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
| | - Lin Li
- Key Laboratory of Flexible Electronics (KLOFE) and, Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, China
| | - Jingyan Ge
- Key Laboratory of Bioorganic Synthesis of Zhejiang Province, College of Biotechnology and Bioengineering, Zhejiang University of Technology, 18 Chaowang Road, Hangzhou, 310014, China
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33
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Zhang C, Wang R, Liu Z, Bunker E, Lee S, Giuntini M, Chapnick D, Liu X. The plant triterpenoid celastrol blocks PINK1-dependent mitophagy by disrupting PINK1's association with the mitochondrial protein TOM20. J Biol Chem 2019; 294:7472-7487. [PMID: 30885942 DOI: 10.1074/jbc.ra118.006506] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 03/05/2019] [Indexed: 12/31/2022] Open
Abstract
A critical function of the PTEN-induced kinase 1 (PINK1)-Parkin pathway is to mediate the clearing of unhealthy or damaged mitochondria via mitophagy. Loss of either PINK1 or Parkin protein expression is associated with Parkinson's disease. Here, using a high-throughput screening approach along with recombinant protein expression and kinase, immunoblotting, and immunofluorescence live-cell imaging assays, we report that celastrol, a pentacyclic triterpenoid isolated from extracts of the medicinal plant Tripterygium wilfordii, blocks recruitment pof Parkin to mitochondria, preventing mitophagy in response to mitochondrial depolarization induced by carbonyl cyanide m-chlorophenylhydrazone or to gamitrinib-induced inhibition of mitochondrial heat shock protein 90 (HSP90). Celastrol's effect on mitophagy was independent of its known role in microtubule disruption. Instead, we show that celastrol suppresses Parkin recruitment by inactivating PINK1 and preventing it from phosphorylating Parkin and also ubiquitin. We also observed that PINK1 directly and strongly associates with TOM20, a component of the translocase of outer mitochondrial membrane (TOM) machinery and relatively weak binding to another TOM subunit, TOM70. Moreover, celastrol disrupted binding between PINK1 and TOM20 both in vitro and in vivo but did not affect binding between TOM20 and TOM70. Using native gel analysis, we also show that celastrol disrupts PINK1 complex formation upon mitochondrial depolarization and sequesters PINK1 to high-molecular-weight protein aggregates. These results reveal that celastrol regulates the mitochondrial quality control pathway by interfering with PINK1-TOM20 binding.
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Affiliation(s)
- Conggang Zhang
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Rongchun Wang
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and.,the Biology Institute, Qilu University of Technology, Shandong Academy of Sciences, 28789 East Jinshi Street, Licheng District, Jinan 250103, China
| | - Zeyu Liu
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Eric Bunker
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Schuyler Lee
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Michelle Giuntini
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Douglas Chapnick
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
| | - Xuedong Liu
- From the Department of Biochemistry, JSCBB, University of Colorado, Boulder, Colorado 80303 and
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34
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Wong ALA, Bellot GL, Hirpara JL, Pervaiz S. Understanding the cancer stem cell phenotype: A step forward in the therapeutic management of cancer. Biochem Pharmacol 2019; 162:79-88. [PMID: 30689981 DOI: 10.1016/j.bcp.2019.01.020] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 01/24/2019] [Indexed: 12/15/2022]
Abstract
The experimental validation of the existence of cancer stem cells (CSC) has had a significant impact on our understanding of the cellular mechanisms and signaling networks involved in the process of carcinogenesis and its progression. These findings provide insights into the critical role that tumor microenvironment and metabolism play in the acquisition of the drug resistance phenotype as well as provide potential targets for therapeutic exploitation. Here we briefly review the literature on the involvement of key signaling pathways such as Wnt/β-catenin, Notch, Hedgehog and STAT3 in the appearance of cancer cells with stem cells-like characteristics. In addition, we also highlight some of the recent therapeutic strategies used to target these pathways as well as approaches aiming to specifically target CSCs through their distinctive metabolic features.
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Affiliation(s)
- Andrea Li Ann Wong
- Cancer Science Institute, National University of Singapore, Singapore; Department of Hematology-Oncology, National University Health System, Singapore; Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Gregory Lucien Bellot
- Department of Hand & Reconstructive Microsurgery, University Orthopedic, Hand & Reconstructive Microsurgery Cluster, National University Health System, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Jayshree L Hirpara
- Cancer Science Institute, National University of Singapore, Singapore; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Shazib Pervaiz
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; Medical Science Cluster Cancer Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore; National University Cancer Institute, National University Health System, Singapore, Singapore; NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore.
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35
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Bernardini JP, Brouwer JM, Tan IK, Sandow JJ, Huang S, Stafford CA, Bankovacki A, Riffkin CD, Wardak AZ, Czabotar PE, Lazarou M, Dewson G. Parkin inhibits BAK and BAX apoptotic function by distinct mechanisms during mitophagy. EMBO J 2018; 38:embj.201899916. [PMID: 30573668 DOI: 10.15252/embj.201899916] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 11/08/2018] [Accepted: 11/13/2018] [Indexed: 12/26/2022] Open
Abstract
The E3 ubiquitin ligase Parkin is a key effector of the removal of damaged mitochondria by mitophagy. Parkin determines cell fate in response to mitochondrial damage, with its loss promoting early onset Parkinson's disease and potentially also cancer progression. Controlling a cell's apoptotic response is essential to co-ordinate the removal of damaged mitochondria. We report that following mitochondrial damage-induced mitophagy, Parkin directly ubiquitinates the apoptotic effector protein BAK at a conserved lysine in its hydrophobic groove, a region that is crucial for BAK activation by BH3-only proteins and its homo-dimerisation during apoptosis. Ubiquitination inhibited BAK activity by impairing its activation and the formation of lethal BAK oligomers. Parkin also suppresses BAX-mediated apoptosis, but in the absence of BAX ubiquitination suggesting an indirect mechanism. In addition, we find that BAK-dependent mitochondrial outer membrane permeabilisation during apoptosis promotes PINK1-dependent Parkin activation. Hence, we propose that Parkin directly inhibits BAK to suppress errant apoptosis, thereby allowing the effective clearance of damaged mitochondria, but also promotes clearance of apoptotic mitochondria to limit their potential pro-inflammatory effect.
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Affiliation(s)
- Jonathan P Bernardini
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Jason M Brouwer
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Iris Kl Tan
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia
| | - Jarrod J Sandow
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Shuai Huang
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Che A Stafford
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Aleksandra Bankovacki
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia
| | - Christopher D Riffkin
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia
| | - Ahmad Z Wardak
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia
| | - Peter E Czabotar
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia.,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
| | - Michael Lazarou
- Department of Biochemistry and Molecular Biology, Monash Biomedicine Discovery Institute Monash University, Clayton, Melbourne, Vic., Australia
| | - Grant Dewson
- Walter and Eliza Hall Institute of Medical Research, Parkville, Melbourne, Vic., Australia .,Department of Medical Biology, University of Melbourne, Parkville, Melbourne, Vic., Australia
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36
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Hou X, Fiesel FC, Truban D, Castanedes Casey M, Lin WL, Soto AI, Tacik P, Rousseau LG, Diehl NN, Heckman MG, Lorenzo-Betancor O, Ferrer I, Arbelo JM, Steele JC, Farrer MJ, Cornejo-Olivas M, Torres L, Mata IF, Graff-Radford NR, Wszolek ZK, Ross OA, Murray ME, Dickson DW, Springer W. Age- and disease-dependent increase of the mitophagy marker phospho-ubiquitin in normal aging and Lewy body disease. Autophagy 2018; 14:1404-1418. [PMID: 29947276 PMCID: PMC6372017 DOI: 10.1080/15548627.2018.1461294] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Although exact causes of Parkinson disease (PD) remain enigmatic, mitochondrial dysfunction is increasingly appreciated as a key determinant of dopaminergic neuron susceptibility in both familial and sporadic PD. Two genes associated with recessive, early-onset PD encode the ubiquitin (Ub) kinase PINK1 and the E3 Ub ligase PRKN/PARK2/Parkin, which together orchestrate a protective mitochondrial quality control (mitoQC) pathway. Upon stress, both enzymes cooperatively identify and decorate damaged mitochondria with phosphorylated poly-Ub (p-S65-Ub) chains. This specific label is subsequently recognized by autophagy receptors that further facilitate mitochondrial degradation in lysosomes (mitophagy). Here, we analyzed human post-mortem brain specimens and identified distinct pools of p-S65-Ub-positive structures that partially colocalized with markers of mitochondria, autophagy, lysosomes and/or granulovacuolar degeneration bodies. We further quantified levels and distribution of the ‘mitophagy tag’ in 2 large cohorts of brain samples from normal aging and Lewy body disease (LBD) cases using unbiased digital pathology. Somatic p-S65-Ub structures independently increased with age and disease in distinct brain regions and enhanced levels in LBD brain were age- and Braak tangle stage-dependent. Additionally, we observed significant correlations of p-S65-Ub with LBs and neurofibrillary tangle levels in disease. The degree of co-existing p-S65-Ub signals and pathological PD hallmarks increased in the pre-mature stage, but decreased in the late stage of LB or tangle aggregation. Altogether, our study provides further evidence for a potential pathogenic overlap among different forms of PD and suggests that p-S65-Ub can serve as a biomarker for mitochondrial damage in aging and disease. Abbreviations: BLBD: brainstem predominant Lewy body disease; CCCP: carbonyl cyanide m-chlorophenyl hydrazone; DLB: dementia with Lewy bodies; DLBD: diffuse neocortical Lewy body disease; EOPD: early-onset Parkinson disease; GVB: granulovacuolar degeneration body; LB: Lewy body; LBD: Lewy body disease; mitoQC: mitochondrial quality control; nbM: nucleus basalis of Meynert; PD: Parkinson disease; PDD: Parkinson disease with dementia; p-S65-Ub: PINK1-phosphorylated serine 65 ubiquitin; SN: substantia nigra; TLBD: transitional Lewy body disease; Ub: ubiquitin
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Affiliation(s)
- Xu Hou
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | - Fabienne C Fiesel
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA.,b Mayo Clinic College of Medicine and Science , Mayo Clinic Graduate School of Biomedical Sciences , Jacksonville , FL , USA
| | - Dominika Truban
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | | | - Wen-Lang Lin
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | - Alexandra I Soto
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | - Pawel Tacik
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | - Linda G Rousseau
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA
| | - Nancy N Diehl
- c Division of Biomedical Statistics and Informatics , Mayo Clinic , Jacksonville , FL , USA
| | - Michael G Heckman
- c Division of Biomedical Statistics and Informatics , Mayo Clinic , Jacksonville , FL , USA
| | | | - Isidre Ferrer
- d Institut de Neuropatologia, Servei d'Anatomia Patològica, Hospital Universitari de Bellvitge , Hospitalet del Llobregat , Barcelona , Spain.,e CIBERNED, Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas , Instituto de Salud Carlos III , Spain
| | - José M Arbelo
- f Parkinson's and Movement Disorders Unit, Department of Neurology , Hospital Universitario Insular de Gran Canaria , Las Palmas de Gran Canaria , Spain
| | | | - Matthew J Farrer
- h Department of Medical Genetics , University of British Columbia , Vancouver , BC , Canada
| | - Mario Cornejo-Olivas
- i Northern Pacific Global Health Research Fellows Training Consortium , Bethesda , MD , USA.,j Neurogenetics Research Center , Instituto Nacional de Ciencias Neurologicas , Lima , Peru
| | - Luis Torres
- k Movement Disorders Unit , Instituto Nacional de Ciencias Neurologicas , Lima , Peru
| | - Ignacio F Mata
- l Veterans Affairs Puget Sound Health Care System , University of Washington , Seattle , WA , USA.,m Department of Neurology , University of Washington , Seattle , WA , USA
| | | | | | - Owen A Ross
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA.,b Mayo Clinic College of Medicine and Science , Mayo Clinic Graduate School of Biomedical Sciences , Jacksonville , FL , USA
| | - Melissa E Murray
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA.,b Mayo Clinic College of Medicine and Science , Mayo Clinic Graduate School of Biomedical Sciences , Jacksonville , FL , USA
| | - Dennis W Dickson
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA.,b Mayo Clinic College of Medicine and Science , Mayo Clinic Graduate School of Biomedical Sciences , Jacksonville , FL , USA
| | - Wolfdieter Springer
- a Department of Neuroscience , Mayo Clinic , Jacksonville , FL , USA.,b Mayo Clinic College of Medicine and Science , Mayo Clinic Graduate School of Biomedical Sciences , Jacksonville , FL , USA
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37
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Abstract
Mitochondria are sensitive to numerous environmental stresses, which can lead to activation of mitochondrial stress responses (MSRs). Of particular recent interest has been the mitochondrial unfolded protein response (UPRmt), activated to restore protein homeostasis (proteostasis) upon mitochondrial protein misfolding. Several axes of the UPRmt have been described, creating some confusion as to the nature of the different responses. While distinct molecularly, these different axes are likely mutually beneficial and activated in parallel. This review aims at describing and distinguishing the different mammalian MSR/UPRmt axes to define key processes and members and to examine the involvement of protein misfolding.
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Affiliation(s)
- Christian Münch
- Institute of Biochemistry II, Goethe University - Medical Faculty, University Hospital, Frankfurt am Main, Germany.
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