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Anderton E, Chamoli M, Bhaumik D, King CD, Xie X, Foulger A, Andersen JK, Schilling B, Lithgow GJ. Amyloid β accelerates age-related proteome-wide protein insolubility. GeroScience 2024:10.1007/s11357-024-01169-1. [PMID: 38753231 DOI: 10.1007/s11357-024-01169-1] [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: 02/05/2024] [Accepted: 04/15/2024] [Indexed: 05/25/2024] Open
Abstract
Loss of proteostasis is a highly conserved feature of aging across model organisms and results in the accumulation of insoluble protein aggregates. Protein insolubility is also a unifying feature of major age-related neurodegenerative diseases, including Alzheimer's Disease (AD), in which hundreds of insoluble proteins associate with aggregated amyloid beta (Aβ) in senile plaques. Despite the connection between aging and AD risk, therapeutic approaches to date have overlooked aging-driven generalized protein insolubility as a contributing factor. However, proteins that become insoluble during aging in model organisms are capable of accelerating Aβ aggregation in vitro and lifespan in vivo. Here, using an unbiased proteomics approach, we questioned the relationship between Aβ and age-related protein insolubility. Specifically, we uncovered that Aβ expression drives proteome-wide protein insolubility in C. elegans, even in young animals, and this insoluble proteome is highly similar to the insoluble proteome driven by normal aging, this vulnerable sub-proteome we term the core insoluble proteome (CIP). We show that the CIP is enriched with proteins that modify Aβ toxicity in vivo, suggesting the possibility of a vicious feedforward cycle in the context of AD. Importantly, using human genome-wide association studies (GWAS), we show that the CIP is replete with biological processes implicated not only in neurodegenerative diseases but also across a broad array of chronic, age-related diseases (CARDs). This provides suggestive evidence that age-related loss of proteostasis could play a role in general CARD risk. Finally, we show that the geroprotective, gut-derived metabolite, Urolithin A, relieves Aβ toxicity, supporting its use in clinical trials for dementia and age-related diseases.
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Affiliation(s)
- Edward Anderton
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA.
- USC Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Ave, Los Angeles, CA, 90191, USA.
| | - Manish Chamoli
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA.
| | - Dipa Bhaumik
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA
| | - Christina D King
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA
| | - Xueshu Xie
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA
| | - Anna Foulger
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA
| | - Julie K Andersen
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA
| | - Birgit Schilling
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA.
| | - Gordon J Lithgow
- The Buck Institute for Research On Aging, 8001 Redwood Blvd, Novato, CA, 94945, USA.
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2
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Bhat A, Cox RL, Hendrickson BG, Das NK, Schaller ML, Tuckowski AM, Wang E, Shah YM, Leiser SF. A diet of oxidative stress-adapted bacteria improves stress resistance and lifespan in C. elegans via p38-MAPK. SCIENCE ADVANCES 2024; 10:eadk8823. [PMID: 38569037 PMCID: PMC10990273 DOI: 10.1126/sciadv.adk8823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Accepted: 02/28/2024] [Indexed: 04/05/2024]
Abstract
Organisms across taxa face stresses including variable temperature, redox imbalance, and xenobiotics. Successfully responding to stress and restoring homeostasis are crucial for survival. Aging is associated with a decreased stress response and alterations in the microbiome, which contribute to disease development. Animals and their microbiota share their environment; however, microbes have short generation time and can rapidly evolve and potentially affect host physiology during stress. Here, we leverage Caenorhabditis elegans and its simplified bacterial diet to demonstrate how microbial adaptation to oxidative stress affects the host's lifespan and stress response. We find that worms fed stress-evolved bacteria exhibit enhanced stress resistance and an extended lifespan. Through comprehensive genetic and metabolic analysis, we find that iron in stress-evolved bacteria enhances worm stress resistance and lifespan via activation of the mitogen-activated protein kinase pathway. In conclusion, our study provides evidence that understanding microbial stress-mediated adaptations could be used to slow aging and alleviate age-related health decline.
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Affiliation(s)
- Ajay Bhat
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
| | - Rebecca L. Cox
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
| | | | - Nupur K. Das
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
| | - Megan L. Schaller
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
| | - Angela M. Tuckowski
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, MI 48109, USA
| | - Emily Wang
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
| | - Yatrik M. Shah
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Scott F. Leiser
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
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3
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da Silva LPD, da Cruz Guedes E, Fernandes ICO, Pedroza LAL, da Silva Pereira GJ, Gubert P. Exploring Caenorhabditis elegans as Parkinson's Disease Model: Neurotoxins and Genetic Implications. Neurotox Res 2024; 42:11. [PMID: 38319410 DOI: 10.1007/s12640-024-00686-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 12/19/2023] [Accepted: 01/05/2024] [Indexed: 02/07/2024]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease in the world, the first being Alzheimer's disease. Patients with PD have a loss of dopaminergic neurons in the substantia nigra of the basal ganglia, which controls voluntary movements, causing a motor impairment as a result of dopaminergic signaling impairment. Studies have shown that mutations in several genes, such as SNCA, PARK2, PINK1, DJ-1, ATP13A2, and LRRK2, and the exposure to neurotoxic agents can potentially increase the chances of PD development. The nematode Caenorhabditis elegans (C. elegans) plays an important role in studying the risk factors, such as genetic factors, aging, exposure to chemicals, disease progression, and drug treatments for PD. C. elegans has a conserved neurotransmission system during evolution; it produces dopamine, through the eight dopaminergic neurons; it can be used to study the effect of neurotoxins and also has strains that express human α-synuclein. Furthermore, the human PD-related genes, LRK-1, PINK-1, PDR-1, DJR-1.1, and CATP-6, are present and functional in this model. Therefore, this review focuses on highlighting and discussing the use of C. elegans an in vivo model in PD-related studies. Here, we identified that nematodes exposed to the neurotoxins, such as 6-OHDA, MPTP, paraquat, and rotenone, had a progressive loss of dopaminergic neurons, dopamine deficits, and decreased survival rate. Several studies have reported that expression of human LRRK2 (G2019S) caused neurodegeneration and pink-1, pdr-1, and djr-1.1 deletion caused several effects PD-related in C. elegans, including mitochondrial dysfunctions. Of note, the deletion of catp-6 in nematodes caused behavioral dysfunction, mitochondrial damage, and reduced survival. In addition, nematodes expressing α-synuclein had neurodegeneration and dopamine-dependent deficits. Therefore, C. elegans can be considered an accurate animal model of PD that can be used to elucidate to assess the underlying mechanisms implicated in PD to find novel therapeutic targets.
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Affiliation(s)
- Larissa Pereira Dantas da Silva
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
| | - Erika da Cruz Guedes
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Isabel Cristina Oliveira Fernandes
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
- Postgraduate Program in Biological Science, Universidade Federal de Pernambuco, Pernambuco, Recife, Brazil
| | - Lucas Aleixo Leal Pedroza
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil
| | | | - Priscila Gubert
- Keizo Asami Institute, iLIKA, Universidade Federal de Pernambuco, Moraes Rego Avenue, 1235, Recife, Pernambuco, 50670-901, Brazil.
- Postgraduate Program in Biological Science, Universidade Federal de Pernambuco, Pernambuco, Recife, Brazil.
- Postgraduate Program in Pure and Applied Chemistry, Universidade Federal do Oeste da Bahia, Bahia, Brazil.
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4
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Croucher KM, Fleming SM. ATP13A2 (PARK9) and basal ganglia function. Front Neurol 2024; 14:1252400. [PMID: 38249738 PMCID: PMC10796451 DOI: 10.3389/fneur.2023.1252400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 12/11/2023] [Indexed: 01/23/2024] Open
Abstract
ATP13A2 is a lysosomal protein involved in polyamine transport with loss of function mutations associated with multiple neurodegenerative conditions. These include early onset Parkinson's disease, Kufor-Rakeb Syndrome, neuronal ceroid lipofuscinosis, hereditary spastic paraplegia, and amyotrophic lateral sclerosis. While ATP13A2 mutations may result in clinical heterogeneity, the basal ganglia appear to be impacted in the majority of cases. The basal ganglia is particularly vulnerable to environmental exposures such as heavy metals, pesticides, and industrial agents which are also established risk factors for many neurodegenerative conditions. Not surprisingly then, impaired function of ATP13A2 has been linked to heavy metal toxicity including manganese, iron, and zinc. This review discusses the role of ATP13A2 in basal ganglia function and dysfunction, potential common pathological mechanisms in ATP13A2-related disorders, and how gene x environment interactions may contribute to basal ganglia dysfunction.
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Affiliation(s)
- Kristina M. Croucher
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
- Biomedical Sciences Graduate Program, Kent State University, Kent, OH, United States
| | - Sheila M. Fleming
- Department of Pharmaceutical Sciences, Northeast Ohio Medical University, Rootstown, OH, United States
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5
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Chamoli M, Rane A, Foulger A, Chinta SJ, Shahmirzadi AA, Kumsta C, Nambiar DK, Hall D, Holcom A, Angeli S, Schmidt M, Pitteri S, Hansen M, Lithgow GJ, Andersen JK. A drug-like molecule engages nuclear hormone receptor DAF-12/FXR to regulate mitophagy and extend lifespan. NATURE AGING 2023; 3:1529-1543. [PMID: 37957360 PMCID: PMC10797806 DOI: 10.1038/s43587-023-00524-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/12/2023] [Indexed: 11/15/2023]
Abstract
Autophagy-lysosomal function is crucial for maintaining healthy lifespan and preventing age-related diseases. The transcription factor TFEB plays a key role in regulating this pathway. Decreased TFEB expression is associated with various age-related disorders, making it a promising therapeutic target. In this study, we screened a natural product library and discovered mitophagy-inducing coumarin (MIC), a benzocoumarin compound that enhances TFEB expression and lysosomal function. MIC robustly increases the lifespan of Caenorhabditis elegans in an HLH-30/TFEB-dependent and mitophagy-dependent manner involving DCT-1/BNIP3 while also preventing mitochondrial dysfunction in mammalian cells. Mechanistically, MIC acts by inhibiting ligand-induced activation of the nuclear hormone receptor DAF-12/FXR, which, in turn, induces mitophagy and extends lifespan. In conclusion, our study uncovers MIC as a promising drug-like molecule that enhances mitochondrial function and extends lifespan by targeting DAF-12/FXR. Furthermore, we discovered DAF-12/FXR as a previously unknown upstream regulator of HLH-30/TFEB and mitophagy.
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Affiliation(s)
| | - Anand Rane
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Anna Foulger
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Shankar J Chinta
- Buck Institute for Research on Aging, Novato, CA, USA
- Touro University California, Vallejo, CA, USA
| | - Azar Asadi Shahmirzadi
- Buck Institute for Research on Aging, Novato, CA, USA
- University of Southern California, Los Angeles, CA, USA
| | - Caroline Kumsta
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
| | | | - David Hall
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Angelina Holcom
- Buck Institute for Research on Aging, Novato, CA, USA
- University of Southern California, Los Angeles, CA, USA
| | | | - Minna Schmidt
- Buck Institute for Research on Aging, Novato, CA, USA
- University of Southern California, Los Angeles, CA, USA
| | | | - Malene Hansen
- Buck Institute for Research on Aging, Novato, CA, USA
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA, USA
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6
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Singh P, Gollapalli K, Mangiola S, Schranner D, Yusuf MA, Chamoli M, Shi SL, Bastos BL, Nair T, Riermeier A, Vayndorf EM, Wu JZ, Nilakhe A, Nguyen CQ, Muir M, Kiflezghi MG, Foulger A, Junker A, Devine J, Sharan K, Chinta SJ, Rajput S, Rane A, Baumert P, Schönfelder M, Iavarone F, Lorenzo GD, Kumari S, Gupta A, Sarkar R, Khyriem C, Chawla AS, Sharma A, Sarper N, Chattopadhyay N, Biswal BK, Settembre C, Nagarajan P, Targoff KL, Picard M, Gupta S, Velagapudi V, Papenfuss AT, Kaya A, Ferreira MG, Kennedy BK, Andersen JK, Lithgow GJ, Ali AM, Mukhopadhyay A, Palotie A, Kastenmüller G, Kaeberlein M, Wackerhage H, Pal B, Yadav VK. Taurine deficiency as a driver of aging. Science 2023; 380:eabn9257. [PMID: 37289866 PMCID: PMC10630957 DOI: 10.1126/science.abn9257] [Citation(s) in RCA: 64] [Impact Index Per Article: 64.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 04/14/2023] [Indexed: 06/10/2023]
Abstract
Aging is associated with changes in circulating levels of various molecules, some of which remain undefined. We find that concentrations of circulating taurine decline with aging in mice, monkeys, and humans. A reversal of this decline through taurine supplementation increased the health span (the period of healthy living) and life span in mice and health span in monkeys. Mechanistically, taurine reduced cellular senescence, protected against telomerase deficiency, suppressed mitochondrial dysfunction, decreased DNA damage, and attenuated inflammaging. In humans, lower taurine concentrations correlated with several age-related diseases and taurine concentrations increased after acute endurance exercise. Thus, taurine deficiency may be a driver of aging because its reversal increases health span in worms, rodents, and primates and life span in worms and rodents. Clinical trials in humans seem warranted to test whether taurine deficiency might drive aging in humans.
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Affiliation(s)
- Parminder Singh
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Kishore Gollapalli
- Vagelos College of Physicians and Surgeons, Columbia University; New York, USA
| | - Stefano Mangiola
- Department of Medical Biology, University of Melbourne; Melbourne, Australia
- School of Cancer Medicine, La Trobe University; Bundoora, Australia
- Olivia Newton-John Cancer Research Institute; Heidelberg, Australia
| | - Daniela Schranner
- Exercise Biology Group, Technical University of Munich; Munich, Germany
- Institute of Computational Biology, Helmholtz Zentrum München; Neuherberg, Germany
| | - Mohd Aslam Yusuf
- Department of Bioengineering, Integral University; Lucknow, India
| | - Manish Chamoli
- Buck Institute of Age Research, 8001 Redwood Blvd; California, USA
| | - Sting L. Shi
- Vagelos College of Physicians and Surgeons, Columbia University; New York, USA
| | - Bruno Lopes Bastos
- Institute for Research on Cancer and Aging of Nice (IRCAN); Nice, France
| | - Tripti Nair
- Molecular Aging Laboratory, National Institute of Immunology; New Delhi, India
| | - Annett Riermeier
- Exercise Biology Group, Technical University of Munich; Munich, Germany
| | - Elena M. Vayndorf
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | - Judy Z. Wu
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | - Aishwarya Nilakhe
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Christina Q. Nguyen
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | - Michael Muir
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | - Michael G. Kiflezghi
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | - Anna Foulger
- Buck Institute of Age Research, 8001 Redwood Blvd; California, USA
| | - Alex Junker
- Department of Neurology, Columbia University; New York, USA
| | - Jack Devine
- Department of Neurology, Columbia University; New York, USA
| | - Kunal Sharan
- Mouse Genetics Project, Wellcome Sanger Institute; Cambridge, UK
| | | | - Swati Rajput
- Division of Endocrinology, CSIR-Central Drug Research Institute; Lucknow, India
| | - Anand Rane
- Buck Institute of Age Research, 8001 Redwood Blvd; California, USA
| | - Philipp Baumert
- Exercise Biology Group, Technical University of Munich; Munich, Germany
| | | | | | | | - Swati Kumari
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Alka Gupta
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Rajesh Sarkar
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Costerwell Khyriem
- Harry Perkins Institute of Medical Research; Perth, Australia
- Curtin Medical School, Curtin University; Perth, Australia
| | - Amanpreet S. Chawla
- Immunobiology Laboratory, National Institute of Immunology; New Delhi, India
- MRC-Protein Phosphorylation and Ubiquitination Unit, University of Dundee; Dundee, UK
| | - Ankur Sharma
- Harry Perkins Institute of Medical Research; Perth, Australia
- Curtin Medical School, Curtin University; Perth, Australia
| | - Nazan Sarper
- Pediatrics and Pediatric Hematology, Kocaeli University Hospital; Kocaeli, Turkey
| | | | - Bichitra K. Biswal
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Carmine Settembre
- Telethon Institute of Genetics and Medicine (TIGEM); Pozzuoli, Italy
- Department of Clinical Medicine and Surgery, Federico II University; Naples, Italy
| | - Perumal Nagarajan
- Primate Research Facility, National Institute of Immunology; New Delhi, India
- Small Animal Research Facility, National Institute of Immunology; New Delhi, India
| | - Kimara L. Targoff
- Division of Cardiology, Department of Pediatrics, Columbia University; New York, USA
| | - Martin Picard
- Department of Neurology, Columbia University; New York, USA
| | - Sarika Gupta
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
| | - Vidya Velagapudi
- Institute for Molecular Medicine Finland FIMM, University of Helsinki; Helsinki, Finland
| | | | - Alaattin Kaya
- Department of Biology, Virginia Commonwealth University; Virginia, USA
| | | | - Brian K. Kennedy
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore; Singapore, Singapore
- Centre for Healthy Longevity, National University Health System; Singapore, Singapore
- Departments of Biochemistry and Physiology, Yong Loo Lin School of Medicine, National University of Singapore; Singapore, Singapore
| | | | | | - Abdullah Mahmood Ali
- Department of Medicine, Columbia University Irving Medical Center; New York, USA
| | - Arnab Mukhopadhyay
- Molecular Aging Laboratory, National Institute of Immunology; New Delhi, India
| | - Aarno Palotie
- Institute for Molecular Medicine Finland FIMM, University of Helsinki; Helsinki, Finland
- Broad Institute of Harvard and MIT; Cambridge, USA
- Analytic and Translational Genetics Unit, Massachusetts General Hospital; Boston, USA
| | - Gabi Kastenmüller
- Institute of Computational Biology, Helmholtz Zentrum München; Neuherberg, Germany
| | - Matt Kaeberlein
- Department of Laboratory Medicine and Pathology, University of Washington; WA, USA
| | | | - Bhupinder Pal
- Department of Medical Biology, University of Melbourne; Melbourne, Australia
- School of Cancer Medicine, La Trobe University; Bundoora, Australia
| | - Vijay K. Yadav
- Metabolic Research Laboratories, National Institute of Immunology; New Delhi, India
- Vagelos College of Physicians and Surgeons, Columbia University; New York, USA
- Mouse Genetics Project, Wellcome Sanger Institute; Cambridge, UK
- Department of Genetics and Development, Columbia University; New York, USA
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7
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Weiser A, Hermant A, Bermont F, Sizzano F, Karaz S, Alvarez-Illera P, Santo-Domingo J, Sorrentino V, Feige JN, De Marchi U. The mitochondrial calcium uniporter (MCU) activates mitochondrial respiration and enhances mobility by regulating mitochondrial redox state. Redox Biol 2023; 64:102759. [PMID: 37302345 PMCID: PMC10363449 DOI: 10.1016/j.redox.2023.102759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 05/14/2023] [Accepted: 05/21/2023] [Indexed: 06/13/2023] Open
Abstract
Regulation of mitochondrial redox balance is emerging as a key event for cell signaling in both physiological and pathological conditions. However, the link between the mitochondrial redox state and the modulation of these conditions remains poorly defined. Here, we discovered that activation of the evolutionary conserved mitochondrial calcium uniporter (MCU) modulates mitochondrial redox state. By using mitochondria-targeted redox and calcium sensors and genetic MCU-ablated models, we provide evidence of the causality between MCU activation and net reduction of mitochondrial (but not cytosolic) redox state. Redox modulation of redox-sensitive groups via MCU stimulation is required for maintaining respiratory capacity in primary human myotubes and C. elegans, and boosts mobility in worms. The same benefits are obtained bypassing MCU via direct pharmacological reduction of mitochondrial proteins. Collectively, our results demonstrate that MCU regulates mitochondria redox balance and that this process is required to promote the MCU-dependent effects on mitochondrial respiration and mobility.
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Affiliation(s)
- Anna Weiser
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland; Molecular Nutritional Medicine, Else Kröner Fresenius Center for Nutritional Medicine, Technische Universität München, 85354 Freising, Germany
| | - Aurélie Hermant
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Flavien Bermont
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Federico Sizzano
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Sonia Karaz
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Pilar Alvarez-Illera
- Department of Biochemistry and Molecular Biology, University of Valladolid, Unidad de Excelencia Instituto de Biología y Genética Molecular (IBGM), 47003 Valladolid, Spain
| | - Jaime Santo-Domingo
- Department of Biochemistry and Molecular Biology, University of Valladolid, Unidad de Excelencia Instituto de Biología y Genética Molecular (IBGM), 47003 Valladolid, Spain
| | - Vincenzo Sorrentino
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland; Healthy Longevity Translational Research Programme, Yong Loo Lin School of Medicine, National University of Singapore, 119228, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 117596, Singapore
| | - Jerome N Feige
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland
| | - Umberto De Marchi
- Nestlé Institute of Health Sciences, Nestlé Research, EPFL Innovation Park, CH-1015 Lausanne, Switzerland.
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8
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Van Acker ZP, Perdok A, Hellemans R, North K, Vorsters I, Cappel C, Dehairs J, Swinnen JV, Sannerud R, Bretou M, Damme M, Annaert W. Phospholipase D3 degrades mitochondrial DNA to regulate nucleotide signaling and APP metabolism. Nat Commun 2023; 14:2847. [PMID: 37225734 DOI: 10.1038/s41467-023-38501-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Accepted: 05/04/2023] [Indexed: 05/26/2023] Open
Abstract
Phospholipase D3 (PLD3) polymorphisms are linked to late-onset Alzheimer's disease (LOAD). Being a lysosomal 5'-3' exonuclease, its neuronal substrates remained unknown as well as how a defective lysosomal nucleotide catabolism connects to AD-proteinopathy. We identified mitochondrial DNA (mtDNA) as a major physiological substrate and show its manifest build-up in lysosomes of PLD3-defective cells. mtDNA accretion creates a degradative (proteolytic) bottleneck that presents at the ultrastructural level as a marked abundance of multilamellar bodies, often containing mitochondrial remnants, which correlates with increased PINK1-dependent mitophagy. Lysosomal leakage of mtDNA to the cytosol activates cGAS-STING signaling that upregulates autophagy and induces amyloid precursor C-terminal fragment (APP-CTF) and cholesterol accumulation. STING inhibition largely normalizes APP-CTF levels, whereas an APP knockout in PLD3-deficient backgrounds lowers STING activation and normalizes cholesterol biosynthesis. Collectively, we demonstrate molecular cross-talks through feedforward loops between lysosomal nucleotide turnover, cGAS-STING and APP metabolism that, when dysregulated, result in neuronal endolysosomal demise as observed in LOAD.
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Affiliation(s)
- Zoë P Van Acker
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Anika Perdok
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Ruben Hellemans
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Katherine North
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Inge Vorsters
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Cedric Cappel
- Laboratory for Molecular Cell Biology and Transgenic Research, Institute of Biochemistry, Christian-Albrechts-University Kiel, Otto-Hahn-Platz 9, Kiel, Germany
| | - Jonas Dehairs
- Laboratory of Lipid Metabolism & Cancer, Department of Oncology, KU Leuven, B-3000, Leuven, Belgium
| | - Johannes V Swinnen
- Laboratory of Lipid Metabolism & Cancer, Department of Oncology, KU Leuven, B-3000, Leuven, Belgium
| | - Ragna Sannerud
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Marine Bretou
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium
| | - Markus Damme
- Laboratory for Molecular Cell Biology and Transgenic Research, Institute of Biochemistry, Christian-Albrechts-University Kiel, Otto-Hahn-Platz 9, Kiel, Germany
| | - Wim Annaert
- Laboratory for Membrane Trafficking, VIB Center for Brain & Disease Research, Herestraat 49, box 602, Leuven, Belgium.
- Department of Neurosciences, KU Leuven, Herestraat 49, box 602, Leuven, Belgium.
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9
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Blume B, Schwantes V, Witting M, Hayen H, Schmitt-Kopplin P, Helmer PO, Michalke B. Lipidomic and Metallomic Alteration of Caenorhabditis elegans after Acute and Chronic Manganese, Iron, and Zinc Exposure with a Link to Neurodegenerative Disorders. J Proteome Res 2023; 22:837-850. [PMID: 36594972 DOI: 10.1021/acs.jproteome.2c00578] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Parkinson's disease (PD) progresses with the loss of dopaminergic neurons in the substantia nigra pars compacta region of the brain. The superior mechanisms and the cause of this specific localized neurodegeneration is currently unknown. However, experimental evidence indicates a link between PD progression and reactive oxygen species with imbalanced metal homeostasis. Wild-type Caenorhabditis elegans exposed to redox-active metals was used as the model organism to study cellular response to imbalanced metal homeostasis linked to neurodegenerative diseases. Using modern hyphenated techniques such as capillary electrophoresis coupled to inductively coupled plasma mass spectrometry and ultrahigh-performance liquid chromatography mass spectrometry, alterations in the lipidome and metallome were determined in vivo. In contrast to iron, most of the absorbed zinc and manganese were loosely bound. We observed changes in the phospholipid composition for acute iron and manganese exposures, as well as chronic zinc exposure. Furthermore, we focused on the mitochondrial membrane alteration due to its importance in neuronal function. However, significant changes in the inner mitochondrial membrane by determination of cardiolipin species could only be observed for acute iron exposure. These results indicate different intracellular sites of local ROS generation, depending on the redox active metal. Our study combines metallomic and lipidomic alterations as the cause and consequence to enlighten intracellular mechanisms in vivo, associated with PD progression. The mass spectrometry raw data have been deposited to the MassIVE database (https://massive.ucsd.edu) with the identifier MSV000090796 and 10.25345/C51J97C8F.
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Affiliation(s)
- Bastian Blume
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München-German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
| | - Vera Schwantes
- Institute for Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
| | - Michael Witting
- Metabolomics and Proteomics, Helmholtz Zentrum München-German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany.,Chair of Analytical Food Chemistry, TUM School of Life Science, Technical University of Munich, 85354 Freising-Weihenstephan, Germany
| | - Heiko Hayen
- Institute for Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
| | - Philippe Schmitt-Kopplin
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München-German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany.,Chair of Analytical Food Chemistry, TUM School of Life Science, Technical University of Munich, 85354 Freising-Weihenstephan, Germany
| | - Patrick O Helmer
- Institute for Inorganic and Analytical Chemistry, University of Münster, 48149 Münster, Germany
| | - Bernhard Michalke
- Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München-German Research Center for Environmental Health (GmbH), 85764 Neuherberg, Germany
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10
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Hatori Y, Kanda Y, Nonaka S, Nakanishi H, Kitazawa T. ATP13A2 modifies mitochondrial localization of overexpressed TOM20 to autolysosomal pathway. PLoS One 2022; 17:e0276823. [PMID: 36445873 PMCID: PMC9707766 DOI: 10.1371/journal.pone.0276823] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 10/13/2022] [Indexed: 12/03/2022] Open
Abstract
Mutations in ATP13A2 cause Kufor-Rakeb Syndrome (KRS), a juvenile form of Parkinson's Disease (PD). The gene product belongs to a diverse family of ion pumps and mediates polyamine influx from lysosomal lumen. While the biochemical and structural studies highlight its unique mechanics, how PD pathology is linked to ATP13A2 function remains unclear. Here we report that localization of overexpressed TOM20, a mitochondrial outer-membrane protein, is significantly altered upon ATP13A2 expression to partially merge with lysosome. Using Halo-fused version of ATP13A2, ATP13A2 was identified in lysosome and autophagosome. Upon ATP13A2 co-expression, overexpressed TOM20 was found not only in mitochondria but also within ATP13A2-containing autolysosome. This modification of TOM20 localization was inhibited by adding 1-methyl-4-phenylpyridinium (MPP+) and not accompanied with mitophagy induction. We suggest that ATP13A2 may participate in the control of overexpressed proteins targeted to mitochondrial outer-membrane.
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Affiliation(s)
- Yuta Hatori
- Department of Pharmaceutics, Faculty of Pharmacy, Yasuda Women’s University, Hiroshima, Japan
- * E-mail:
| | - Yukina Kanda
- Faculty of Pharmacy, Yasuda Women’s University, Hiroshima, Japan
| | - Saori Nonaka
- Department of Pharmacology, Faculty of Pharmacy, Yasuda Women’s University, Hiroshima, Japan
| | - Hiroshi Nakanishi
- Department of Pharmacology, Faculty of Pharmacy, Yasuda Women’s University, Hiroshima, Japan
| | - Takeo Kitazawa
- Department of Pharmaceutics, Faculty of Pharmacy, Yasuda Women’s University, Hiroshima, Japan
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11
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Braun MM, Puglielli L. Defective PTEN-induced kinase 1/Parkin mediated mitophagy and neurodegenerative diseases. Front Cell Neurosci 2022; 16:1031153. [PMID: 36339819 PMCID: PMC9630469 DOI: 10.3389/fncel.2022.1031153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 10/04/2022] [Indexed: 10/07/2023] Open
Abstract
The selective degradation of mitochondria through mitophagy is a crucial process for maintaining mitochondrial function and cellular health. Mitophagy is a specialized form of selective autophagy that uses unique machinery to recognize and target damaged mitochondria for mitophagosome- and lysosome-dependent degradation. This process is particularly important in cells with high metabolic activity like neurons, and the accumulation of defective mitochondria is a common feature among neurodegenerative disorders. Here, we describe essential steps involved in the induction and progression of mitophagy, and then highlight the various mechanisms that specifically contribute to defective mitophagy in highly prevalent neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, Huntington's disease, and Amyotrophic Lateral Sclerosis.
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Affiliation(s)
- Megan M. Braun
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, United States
- Waisman Center, University of Wisconsin-Madison, Madison, WI, United States
- Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, United States
| | - Luigi Puglielli
- Department of Medicine, University of Wisconsin-Madison, Madison, WI, United States
- Waisman Center, University of Wisconsin-Madison, Madison, WI, United States
- Neuroscience Training Program, University of Wisconsin-Madison, Madison, WI, United States
- Department of Neuroscience, University of Wisconsin-Madison, Madison, WI, United States
- Geriatric Research Education Clinical Center, Veterans Affairs Medical Center, Madison, WI, United States
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12
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Xiao B, Kuruvilla J, Tan EK. Mitophagy and reactive oxygen species interplay in Parkinson's disease. NPJ Parkinsons Dis 2022; 8:135. [PMID: 36257956 PMCID: PMC9579202 DOI: 10.1038/s41531-022-00402-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 09/28/2022] [Indexed: 11/08/2022] Open
Abstract
Mitophagy impairment and oxidative stress are cardinal pathological hallmarks in Parkinson's disease (PD), a common age-related neurodegenerative condition. The specific interactions between mitophagy and reactive oxygen species (ROS) have attracted considerable attention even though their exact interplay in PD has not been fully elucidated. We highlight the interactions between ROS and mitophagy, with a focus on the signalling pathways downstream to ROS that triggers mitophagy and draw attention to potential therapeutic compounds that target these pathways in both experimental and clinical models. Identifying a combination of ROS inhibitors and mitophagy activators to provide a physiologic balance in this complex signalling pathways may lead to a more optimal outcome. Deciphering the exact temporal relationship between mitophagy and oxidative stress and their triggers early in the course of neurodegeneration can unravel mechanistic clues that potentially lead to the development of compounds for clinical drug trials focusing on prodromic PD or at-risk individuals.
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Affiliation(s)
- Bin Xiao
- Department of Neurology, National Neuroscience Institute, Singapore, Singapore.
- Neuroscience Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore.
| | - Joshua Kuruvilla
- Department of Neurology, National Neuroscience Institute, Singapore, Singapore
| | - Eng-King Tan
- Department of Neurology, National Neuroscience Institute, Singapore, Singapore.
- Neuroscience Academic Clinical Program, Duke-NUS Medical School, Singapore, Singapore.
- Neuroscience and Behavioral Disorders Program, Duke-NUS Medical School, Singapore, Singapore.
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13
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Ma L, Li X, Liu C, Yan W, Ma J, Petersen RB, Peng A, Huang K. Modelling Parkinson's Disease in C. elegans: Strengths and Limitations. Curr Pharm Des 2022; 28:3033-3048. [PMID: 36111767 DOI: 10.2174/1381612828666220915103502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 08/08/2022] [Indexed: 01/28/2023]
Abstract
Parkinson's disease (PD) is a common neurodegenerative disease that affects the motor system and progressively worsens with age. Current treatment options for PD mainly target symptoms, due to our limited understanding of the etiology and pathophysiology of PD. A variety of preclinical models have been developed to study different aspects of the disease. The models have been used to elucidate the pathogenesis and for testing new treatments. These models include cell models, non-mammalian models, rodent models, and non-human primate models. Over the past few decades, Caenorhabditis elegans (C. elegans) has been widely adopted as a model system due to its small size, transparent body, short generation time and life cycle, fully sequenced genome, the tractability of genetic manipulation and suitability for large scale screening for disease modifiers. Here, we review studies using C. elegans as a model for PD and highlight the strengths and limitations of the C. elegans model. Various C. elegans PD models, including neurotoxin-induced models and genetic models, are described in detail. Moreover, met.
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Affiliation(s)
- Liang Ma
- Department of Pharmacy, Wuhan Mental Health Center, Wuhan, China.,Department of Pharmacy, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Xi Li
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chengyu Liu
- Department of Transfusion Medicine, Wuhan Hospital of Traditional Chinese and Western Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wanyao Yan
- Department of Pharmacy, Wuhan Fourth Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jinlu Ma
- Human Resources Department, Wuhan Mental Health Center, Wuhan, China.,Human Resources Department, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Robert B Petersen
- Foundational Sciences, Central Michigan University College of Medicine, Mount Pleasant, MI, USA
| | - Anlin Peng
- Department of Pharmacy, The Third Hospital of Wuhan, Tongren Hospital of Wuhan University, Wuhan, China
| | - Kun Huang
- Tongji School of Pharmacy, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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14
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Arputhasamy C, Foulger AC, Lucanic M, Rane A, Schmidt M, Garrett T, Broussalian M, Battistoni E, Brem RB, Lithgow GJ, Chamoli M, Andersen JK. Potassium-chelating drug sodium polystyrene sulfonate enhances lysosomal function and suppresses proteotoxicity. GeroScience 2022; 45:1237-1245. [PMID: 36018536 PMCID: PMC9886731 DOI: 10.1007/s11357-022-00647-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/15/2022] [Indexed: 02/03/2023] Open
Abstract
Lysosomes are crucial for degradation and recycling of damaged proteins and cellular components. Therapeutic strategies enhancing lysosomal function are a promising approach for aging and age-related neurodegenerative diseases. Here, we show that an FDA approved drug sodium polystyrene sulfonate (SPS), used to reduce high blood potassium in humans, enhances lysosomal function both in C. elegans and in human neuronal cells. Enhanced lysosomal function following SPS treatment is accompanied by the suppression of proteotoxicity caused by expression of the neurotoxic peptides Aβ and TAU. Additionally, treatment with SPS imparts health benefits as it significantly increases lifespan in C. elegans. Overall our work supports the potential use of SPS as a prospective geroprotective intervention.
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Affiliation(s)
- Cyrene Arputhasamy
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA
| | - Anna C. Foulger
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA
| | - Mark Lucanic
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA
| | - Anand Rane
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA
| | - Minna Schmidt
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.42505.360000 0001 2156 6853School of Gerontology, USC Leonard Davis, University of Southern California, Los Angeles, CA USA
| | - Theo Garrett
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA
| | - Michael Broussalian
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.255148.f0000 0000 9826 3546Dominican University of California, San Rafael, CA USA
| | - Elena Battistoni
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.255148.f0000 0000 9826 3546Dominican University of California, San Rafael, CA USA
| | - Rachel B. Brem
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.47840.3f0000 0001 2181 7878Department of Plant and Microbial Biology, UC Berkeley, Berkeley, CA USA
| | - Gordon J. Lithgow
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.42505.360000 0001 2156 6853School of Gerontology, USC Leonard Davis, University of Southern California, Los Angeles, CA USA
| | | | - Julie K. Andersen
- grid.272799.00000 0000 8687 5377Buck Institute for Research On Aging, Novato, CA USA ,grid.42505.360000 0001 2156 6853School of Gerontology, USC Leonard Davis, University of Southern California, Los Angeles, CA USA
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15
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Vellingiri B, Suriyanarayanan A, Selvaraj P, Abraham KS, Pasha MY, Winster H, Gopalakrishnan AV, G S, Reddy JK, Ayyadurai N, Kumar N, Giridharan B, P S, Rao KRSS, Nachimuthu SK, Narayanasamy A, Mahalaxmi I, Venkatesan D. Role of heavy metals (copper (Cu), arsenic (As), cadmium (Cd), iron (Fe) and lithium (Li)) induced neurotoxicity. CHEMOSPHERE 2022; 301:134625. [PMID: 35439490 DOI: 10.1016/j.chemosphere.2022.134625] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 03/30/2022] [Accepted: 04/12/2022] [Indexed: 05/15/2023]
Abstract
Parkinson's disease (PD) is a neurodegenerative condition characterized by the dopamine (DA) neuronal loss in the substantia nigra. PD impairs motor controls symptoms such as tremor, rigidity, bradykinesia and postural imbalance gradually along with non-motor problems such as olfactory dysfunction, constipation, sleeping disorder. Though surplus of factors and mechanisms have been recognized, the precise PD etiopathogenesis is not yet implied. Reports suggest that various environmental factors play a crucial role in the causality of the PD cases. Epidemiological studies have reported that heavy metals has a role in causing defects in substantia nigra region of brain in PD. Though the reason is unknown, exposure to heavy metals is reported to be an underlying factor in PD development. Metals are classified as either essential or non-essential, and they have a role in physiological processes such protein modification, electron transport, oxygen transport, redox reactions, and cell adhesion. Excessive metal levels cause oxidative stress, protein misfolding, mitochondrial malfunction, autophagy dysregulation, and apoptosis, among other things. In this review, we check out the link between heavy metals like copper (Cu), arsenic (As), cadmium (Cd), iron (Fe), and lithium (Li) in neurodegeneration, and how it impacts the pathological conditions of PD. In conclusion, increase or decrease in heavy metals involve in regulation of neuronal functions that have an impact on neurodegeneration process. Through this review, we suggest that more research is needed in this stream to bring more novel approaches for either disease modelling or therapeutics.
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Affiliation(s)
- Balachandar Vellingiri
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Atchaya Suriyanarayanan
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Priyanka Selvaraj
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Kripa Susan Abraham
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Md Younus Pasha
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Harysh Winster
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India; Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | - Abilash Valsala Gopalakrishnan
- Department of Biomedical Sciences, School of Biosciences and Technology, Vellore Institute of Technology, Tamil Nadu, Vellore, 632 014, India
| | - Singaravelu G
- Department of Education, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India
| | | | - Niraikulam Ayyadurai
- CSIR-Central Leather Research Institute, Adyar, Chennai, 600 020, Tamil Nadu, India
| | - Nandha Kumar
- Department of Zoology, St. Joseph University, 797 115, Dimapur, Nagaland
| | - Bupesh Giridharan
- Department of Forest Science, Nagaland University, Lumami, Zunheboto, Nagaland, India
| | - Sivaprakash P
- Department of Mechanical Engineering, Dr.N.G.P. Institute of Technology, Coimbatore, 641048, Tamil Nadu, India
| | - K R S Sambasiva Rao
- Department of Biotechnology, Mizoram University (A Central University), Aizawl, 796 004, Mizoram, India
| | - Senthil Kumar Nachimuthu
- Department of Biotechnology, Mizoram University (A Central University), Aizawl, 796 004, Mizoram, India
| | - Arul Narayanasamy
- Disease Proteomics Laboratory, Department of Zoology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.
| | - Iyer Mahalaxmi
- Livestock Farming and Bioresource Technology, Tamil Nadu, India.
| | - Dhivya Venkatesan
- Human Molecular Cytogenetics and Stem Cell Laboratory, Department of Human Genetics and Molecular Biology, Bharathiar University, Coimbatore, 641 046, Tamil Nadu, India.
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16
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He L, Du JJ, Zhou JJ, Chen MT, Luo L, Li BQ, Zhang XZ, Ma WZ, Ma AJ, Feng N. Synthesis of Melatonin Derivatives and the Neuroprotective Effects on Parkinson's Disease Models of Caenorhabditis elegans. Front Chem 2022; 10:918116. [PMID: 35755259 PMCID: PMC9213837 DOI: 10.3389/fchem.2022.918116] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Melatonin (MT) is a hormone with antioxidant activity secreted by the pineal gland in the human brain, which is highly efficient in scavenging free radicals and plays an important role in the neuro-immuno-endocrine system. Emerging evidence showed that MT supplementation was a potential therapeutic strategy for Parkinson’s disease (PD), which inhibits pathways associated with oxidative stress in PD. In this study, we reported a C7-selective olefination of melatonin under rhodium catalysis with the aid of PIII-directing groups and synthesized 10 new melatonin-C7-cinnamic acid derivatives (6a–6j). The antioxidant potential of the compounds was evaluated both by ABTS and ORAC methods. Among these newly synthesized melatonin derivatives, 6a showed significantly higher activity than MT at 10−5 M. In the transgenic Caenorhabditis elegans model of PD, 6a significantly reduces alpha-synuclein aggregation and dopaminergic neuronal damage in nematodes while reducing intracellular ROS levels and recovers behavioral dysfunction induced by dopaminergic neurodegeneration. Further study of the mechanism of action of this compound can provide new therapeutic ideas and treatment strategies for PD.
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Affiliation(s)
- Li He
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Jing-Jing Du
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Jun-Jie Zhou
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Meng-Ting Chen
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Lu Luo
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Bao-Qiong Li
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Xiang-Zhi Zhang
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Wen-Zhe Ma
- State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science and Technology, Macau, China
| | - Ai-Jun Ma
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
| | - Na Feng
- School of Biotechnology and Health Sciences, Wuyi University, Jiangmen, China
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17
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Gao XY, Yang T, Gu Y, Sun XH. Mitochondrial Dysfunction in Parkinson’s Disease: From Mechanistic Insights to Therapy. Front Aging Neurosci 2022; 14:885500. [PMID: 35795234 PMCID: PMC9250984 DOI: 10.3389/fnagi.2022.885500] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/30/2022] [Indexed: 12/02/2022] Open
Abstract
Parkinson’s disease (PD) is one of the most common neurodegenerative movement disorders worldwide. There are currently no cures or preventative treatments for PD. Emerging evidence indicates that mitochondrial dysfunction is closely associated with pathogenesis of sporadic and familial PD. Because dopaminergic neurons have high energy demand, cells affected by PD exhibit mitochondrial dysfunction that promotes the disease-defining the loss of dopaminergic neurons in the substantia nigra pars compacta (SNpc). The mitochondrion has a particularly important role as the cellular “powerhouse” of dopaminergic neurons. Therefore, mitochondria have become a promising therapeutic target for PD treatments. This review aims to describe mitochondrial dysfunction in the pathology of PD, outline the genes associated with familial PD and the factors related to sporadic PD, summarize current knowledge on mitochondrial quality control in PD, and give an overview of therapeutic strategies for targeting mitochondria in neuroprotective interventions in PD.
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Affiliation(s)
- Xiao-Yan Gao
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
- Science Experiment Center, China Medical University, Shenyang, China
| | - Tuo Yang
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Ying Gu
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
| | - Xiao-Hong Sun
- Department of Neurology, The Fourth Affiliated Hospital of China Medical University, Shenyang, China
- Science Experiment Center, China Medical University, Shenyang, China
- *Correspondence: Xiao-Hong Sun,
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18
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Dang T, Cao WJ, Zhao R, Lu M, Hu G, Qiao C. ATP13A2 protects dopaminergic neurons in Parkinson's disease: from biology to pathology. J Biomed Res 2022; 36:98-108. [PMID: 35387901 PMCID: PMC9002154 DOI: 10.7555/jbr.36.20220001] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
As a late endosomal/lysosomal transport protein of the P5-type, ATP13A2 is capable of removing the abnormal accumulation of α-synuclein, which maintains the homeostasis of metal ions and polyamines in the central nervous system. Furthermore, ATP13A2 regulates the normal function of several organelles such as lysosomes, endoplasmic reticulum (ER) and mitochondria, and maintains the normal physiological activity of neural cells. Especially, ATP13A2 protects dopaminergic (DA) neurons against environmental or genetically induced Parkinson's disease (PD). As we all know, PD is a neurodegenerative disease characterized by the loss of DA neurons in the substantia nigra pars compacta. An increasing number of studies have reported that the loss-of-function of ATP13A2 affects normal physiological processes of various organelles, leading to abnormalities and the death of DA neurons. Previous studies in our laboratory have also shown that ATP13A2 deletion intensifies the neuroinflammatory response induced by astrocytes, thus inducing DA neuronal injury. In addition to elucidating the normal structure and function of ATP13A2, this review summarized the pathological mechanisms of ATP13A2 mutations leading to PD in existing literature studies, deepening the understanding of ATP13A2 in the pathological process of PD and other related neurodegenerative diseases. This review provides inspiration for investigators to explore the essential regulatory role of ATP13A2 in PD in the future.
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Affiliation(s)
- Tao Dang
- Department of Clinical Pharmacy, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China.,College of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, China
| | - Wen-Jing Cao
- Department of Clinical Pharmacy, Xiangtan Central Hospital, Xiangtan, Hunan 411100, China
| | - Rong Zhao
- Department of Clinical Pharmacy, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China
| | - Ming Lu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Gang Hu
- Jiangsu Key Laboratory of Neurodegeneration, Department of Pharmacology, Nanjing Medical University, Nanjing, Jiangsu 211166, China
| | - Chen Qiao
- Department of Clinical Pharmacy, the Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, China.,College of Pharmacy, Jiangsu University, Zhenjiang, Jiangsu 212013, China
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19
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Kim WD, Wilson-Smillie MLDM, Thanabalasingam A, Lefrancois S, Cotman SL, Huber RJ. Autophagy in the Neuronal Ceroid Lipofuscinoses (Batten Disease). Front Cell Dev Biol 2022; 10:812728. [PMID: 35252181 PMCID: PMC8888908 DOI: 10.3389/fcell.2022.812728] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 01/24/2022] [Indexed: 12/22/2022] Open
Abstract
The neuronal ceroid lipofuscinoses (NCLs), also referred to as Batten disease, are a family of neurodegenerative diseases that affect all age groups and ethnicities around the globe. At least a dozen NCL subtypes have been identified that are each linked to a mutation in a distinct ceroid lipofuscinosis neuronal (CLN) gene. Mutations in CLN genes cause the accumulation of autofluorescent lipoprotein aggregates, called ceroid lipofuscin, in neurons and other cell types outside the central nervous system. The mechanisms regulating the accumulation of this material are not entirely known. The CLN genes encode cytosolic, lysosomal, and integral membrane proteins that are associated with a variety of cellular processes, and accumulated evidence suggests they participate in shared or convergent biological pathways. Research across a variety of non-mammalian and mammalian model systems clearly supports an effect of CLN gene mutations on autophagy, suggesting that autophagy plays an essential role in the development and progression of the NCLs. In this review, we summarize research linking the autophagy pathway to the NCLs to guide future work that further elucidates the contribution of altered autophagy to NCL pathology.
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Affiliation(s)
- William D. Kim
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, Canada
| | | | - Aruban Thanabalasingam
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, Canada
| | - Stephane Lefrancois
- Centre Armand-Frappier Santé Biotechnologie, Institut National de La Recherche Scientifique, Laval, QC, Canada
- Department of Anatomy and Cell Biology, McGill University, Montreal, QC, Canada
- Centre D'Excellence en Recherche sur Les Maladies Orphelines–Fondation Courtois (CERMO-FC), Université Du Québec à Montréal (UQAM), Montréal, QC, Canada
| | - Susan L. Cotman
- Department of Neurology, Center for Genomic Medicine, Massachusetts General Hospital Research Institute, Harvard Medical School, Boston, MA, United States
| | - Robert J. Huber
- Department of Biology, Trent University, Peterborough, ON, Canada
- *Correspondence: Robert J. Huber,
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20
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Chandler R, Cogo S, Lewis P, Kevei E. Modelling the functional genomics of Parkinson's disease in Caenorhabditis elegans: LRRK2 and beyond. Biosci Rep 2021; 41:BSR20203672. [PMID: 34397087 PMCID: PMC8415217 DOI: 10.1042/bsr20203672] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 08/03/2021] [Accepted: 08/13/2021] [Indexed: 12/12/2022] Open
Abstract
For decades, Parkinson's disease (PD) cases have been genetically categorised into familial, when caused by mutations in single genes with a clear inheritance pattern in affected families, or idiopathic, in the absence of an evident monogenic determinant. Recently, genome-wide association studies (GWAS) have revealed how common genetic variability can explain up to 36% of PD heritability and that PD manifestation is often determined by multiple variants at different genetic loci. Thus, one of the current challenges in PD research stands in modelling the complex genetic architecture of this condition and translating this into functional studies. Caenorhabditis elegans provide a profound advantage as a reductionist, economical model for PD research, with a short lifecycle, straightforward genome engineering and high conservation of PD relevant neural, cellular and molecular pathways. Functional models of PD genes utilising C. elegans show many phenotypes recapitulating pathologies observed in PD. When contrasted with mammalian in vivo and in vitro models, these are frequently validated, suggesting relevance of C. elegans in the development of novel PD functional models. This review will discuss how the nematode C. elegans PD models have contributed to the uncovering of molecular and cellular mechanisms of disease, with a focus on the genes most commonly found as causative in familial PD and risk factors in idiopathic PD. Specifically, we will examine the current knowledge on a central player in both familial and idiopathic PD, Leucine-rich repeat kinase 2 (LRRK2) and how it connects to multiple PD associated GWAS candidates and Mendelian disease-causing genes.
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Affiliation(s)
| | - Susanna Cogo
- School of Biological Sciences, University of Reading, Reading, RG6 6AH, U.K
- Department of Biology, University of Padova, Padova, Via Ugo Bassi 58/B, 35121, Italy
| | - Patrick A. Lewis
- Royal Veterinary College, University of London, London, NW1 0TU, U.K
- Department of Neurodegenerative Disease, UCL Queen Square Institute of Neurology, University College London, London, WC1N 3BG, U.K
| | - Eva Kevei
- School of Biological Sciences, University of Reading, Reading, RG6 6AH, U.K
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21
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Bastioli G, Regoni M, Cazzaniga F, De Luca CMG, Bistaffa E, Zanetti L, Moda F, Valtorta F, Sassone J. Animal Models of Autosomal Recessive Parkinsonism. Biomedicines 2021; 9:biomedicines9070812. [PMID: 34356877 PMCID: PMC8301401 DOI: 10.3390/biomedicines9070812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 02/07/2023] Open
Abstract
Parkinson’s disease (PD) is the most common neurodegenerative movement disorder. The neuropathological hallmark of the disease is the loss of dopamine neurons of the substantia nigra pars compacta. The clinical manifestations of PD are bradykinesia, rigidity, resting tremors and postural instability. PD patients often display non-motor symptoms such as depression, anxiety, weakness, sleep disturbances and cognitive disorders. Although, in 90% of cases, PD has a sporadic onset of unknown etiology, highly penetrant rare genetic mutations in many genes have been linked with typical familial PD. Understanding the mechanisms behind the DA neuron death in these Mendelian forms may help to illuminate the pathogenesis of DA neuron degeneration in the more common forms of PD. A key step in the identification of the molecular pathways underlying DA neuron death, and in the development of therapeutic strategies, is the creation and characterization of animal models that faithfully recapitulate the human disease. In this review, we outline the current status of PD modeling using mouse, rat and non-mammalian models, focusing on animal models for autosomal recessive PD.
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Affiliation(s)
- Guendalina Bastioli
- Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; (G.B.); (M.R.); (L.Z.); (F.V.)
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Maria Regoni
- Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; (G.B.); (M.R.); (L.Z.); (F.V.)
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Federico Cazzaniga
- Division of Neurology 5 and Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.C.); (C.M.G.D.L.); (E.B.); (F.M.)
| | - Chiara Maria Giulia De Luca
- Division of Neurology 5 and Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.C.); (C.M.G.D.L.); (E.B.); (F.M.)
- Laboratory of Prion Biology, Department of Neuroscience, Scuola Internazionale Superiore di Studi Avanzati, 34136 Trieste, Italy
| | - Edoardo Bistaffa
- Division of Neurology 5 and Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.C.); (C.M.G.D.L.); (E.B.); (F.M.)
| | - Letizia Zanetti
- Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; (G.B.); (M.R.); (L.Z.); (F.V.)
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Fabio Moda
- Division of Neurology 5 and Neuropathology, Fondazione IRCCS Istituto Neurologico Carlo Besta, 20133 Milan, Italy; (F.C.); (C.M.G.D.L.); (E.B.); (F.M.)
| | - Flavia Valtorta
- Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; (G.B.); (M.R.); (L.Z.); (F.V.)
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
| | - Jenny Sassone
- Division of Neuroscience, San Raffaele Scientific Institute, 20132 Milan, Italy; (G.B.); (M.R.); (L.Z.); (F.V.)
- Faculty of Medicine and Surgery, Vita-Salute San Raffaele University, 20132 Milan, Italy
- Correspondence:
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22
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Schmidt MY, Chamoli M, Lithgow GJ, Andersen JK. Swimming exercise reduces native ⍺-synuclein protein species in a transgenic C. elegans model of Parkinson's disease. MICROPUBLICATION BIOLOGY 2021; 2021. [PMID: 34222835 PMCID: PMC8243224 DOI: 10.17912/micropub.biology.000413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Exercise has been historically recommended to prevent many disease conditions. Intense exercise in particular, has been shown to be beneficial for Parkinson's disease (PD) - stopping and even reversing symptoms in some patients. Recent research in mammalian animal models of Parkinson's have shown that exercise affects ⍺-synuclein aggregate species, considered to be a hallmark of PD. However, the exact changes in native ⍺-synuclein protein species after exercise and the downstream effects of exercise upon the health of the animals remains unclear. Recently, it was shown that swimming constitutes a form of exercise in C. elegans worms that confers a protective effect in several worm models of tau and Huntington protein neurodegeneration. Here we show that a period of swimming exercise (Ex) - 15-20 mins - dramatically reduces several native human ⍺-synuclein protein species in the NL5901 C. elegans worm model of Parkinson's. Exercise on Day 1 of adulthood was found to improve motor function measured by the thrashing rate of worms on Day 2 and Day 4 when compared to both control (untreated) and food restricted (FR) worms. Moreover, exercised worms show smaller ⍺-synuclein::YFP puncta than food restricted worms. Here we show that exercise reduces native human ⍺-synuclein levels independent of food restriction in C. elegans.
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Affiliation(s)
- Minna Y Schmidt
- The Buck Institute for Research on Aging.,The University of Southern California, Leonard Davis School of Gerontology
| | | | - Gordon J Lithgow
- The Buck Institute for Research on Aging.,The University of Southern California, Leonard Davis School of Gerontology
| | - Julie K Andersen
- The Buck Institute for Research on Aging.,The University of Southern California, Leonard Davis School of Gerontology
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23
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Gossypitrin, A Naturally Occurring Flavonoid, Attenuates Iron-Induced Neuronal and Mitochondrial Damage. Molecules 2021; 26:molecules26113364. [PMID: 34199597 PMCID: PMC8199700 DOI: 10.3390/molecules26113364] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 05/26/2021] [Accepted: 05/27/2021] [Indexed: 11/17/2022] Open
Abstract
The disruption of iron homeostasis is an important factor in the loss of mitochondrial function in neural cells, leading to neurodegeneration. Here, we assessed the protective action of gossypitrin (Gos), a naturally occurring flavonoid, on iron-induced neuronal cell damage using mouse hippocampal HT-22 cells and mitochondria isolated from rat brains. Gos was able to rescue HT22 cells from the damage induced by 100 µM Fe(II)-citrate (EC50 8.6 µM). This protection was linked to the prevention of both iron-induced mitochondrial membrane potential dissipation and ATP depletion. In isolated mitochondria, Gos (50 µM) elicited an almost complete protection against iron-induced mitochondrial swelling, the loss of mitochondrial transmembrane potential and ATP depletion. Gos also prevented Fe(II)-citrate-induced mitochondrial lipid peroxidation with an IC50 value (12.45 µM) that was about nine time lower than that for the tert-butylhydroperoxide-induced oxidation. Furthermore, the flavonoid was effective in inhibiting the degradation of both 15 and 1.5 mM 2-deoxyribose. It also decreased Fe(II) concentration with time, while increasing O2 consumption rate, and impairing the reduction of Fe(III) by ascorbate. Gos-Fe(II) complexes were detected by UV-VIS and IR spectroscopies, with an apparent Gos-iron stoichiometry of 2:1. Results suggest that Gos does not generally act as a classical antioxidant, but it directly affects iron, by maintaining it in its ferric form after stimulating Fe(II) oxidation. Metal ions would therefore be unable to participate in a Fenton-type reaction and the lipid peroxidation propagation phase. Hence, Gos could be used to treat neuronal diseases associated with iron-induced oxidative stress and mitochondrial damage.
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24
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Petrovich GD, Corradi GR, Pavan CH, Noli Truant S, Adamo HP. Highly exposed segment of the Spf1p P5A-ATPase near transmembrane M5 detected by limited proteolysis. PLoS One 2021; 16:e0245679. [PMID: 33507968 PMCID: PMC7842927 DOI: 10.1371/journal.pone.0245679] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Accepted: 01/05/2021] [Indexed: 11/20/2022] Open
Abstract
The yeast Spf1p protein is a primary transporter that belongs to group 5 of the large family of P-ATPases. Loss of Spf1p function produces ER stress with alterations of metal ion and sterol homeostasis and protein folding, glycosylation and membrane insertion. The amino acid sequence of Spf1p shows the characteristic P-ATPase domains A, N, and P and the transmembrane segments M1-M10. In addition, Spf1p exhibits unique structures at its N-terminus (N-T region), including two putative additional transmembrane domains, and a large insertion connecting the P domain with transmembrane segment M5 (D region). Here we used limited proteolysis to examine the structure of Spf1p. A short exposure of Spf1p to trypsin or proteinase K resulted in the cleavage at the N and C terminal regions of the protein and abrogated the formation of the catalytic phosphoenzyme and the ATPase activity. In contrast, limited proteolysis of Spf1p with chymotrypsin generated a large N-terminal fragment containing most of the M4-M5 cytosolic loop, and a minor fragment containing the C-terminal region. If lipids were present during chymotryptic proteolysis, phosphoenzyme formation and ATPase activity were preserved. ATP slowed Spf1p proteolysis without detectable changes of the generated fragments. The analysis of the proteolytic peptides by mass spectrometry and Edman degradation indicated that the preferential chymotryptic site was localized near the cytosolic end of M5. The susceptibility to proteolysis suggests an unexpected exposure of this region of Spf1p that may be an intrinsic feature of P5A-ATPases.
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Affiliation(s)
- Guido D. Petrovich
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Gerardo R. Corradi
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Carlos H. Pavan
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Sofia Noli Truant
- Facultad de Farmacia y Bioquímica, Cátedra de Inmunología and Instituto de Estudios de la Inmunidad Humoral Prof. Dr. Ricardo A. Margni (IDEHU), UBA-CONICET, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - Hugo P. Adamo
- Facultad de Farmacia y Bioquímica, Departamento de Química Biológica, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)-Universidad de Buenos Aires, Instituto de Química y Fisicoquímica Biológicas (IQUIFIB), Universidad de Buenos Aires, Buenos Aires, Argentina
- * E-mail:
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25
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Fischer CA, Besora-Casals L, Rolland SG, Haeussler S, Singh K, Duchen M, Conradt B, Marr C. MitoSegNet: Easy-to-use Deep Learning Segmentation for Analyzing Mitochondrial Morphology. iScience 2020; 23:101601. [PMID: 33083756 PMCID: PMC7554024 DOI: 10.1016/j.isci.2020.101601] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 08/18/2020] [Accepted: 09/17/2020] [Indexed: 12/29/2022] Open
Abstract
While the analysis of mitochondrial morphology has emerged as a key tool in the study of mitochondrial function, efficient quantification of mitochondrial microscopy images presents a challenging task and bottleneck for statistically robust conclusions. Here, we present Mitochondrial Segmentation Network (MitoSegNet), a pretrained deep learning segmentation model that enables researchers to easily exploit the power of deep learning for the quantification of mitochondrial morphology. We tested the performance of MitoSegNet against three feature-based segmentation algorithms and the machine-learning segmentation tool Ilastik. MitoSegNet outperformed all other methods in both pixelwise and morphological segmentation accuracy. We successfully applied MitoSegNet to unseen fluorescence microscopy images of mitoGFP expressing mitochondria in wild-type and catp-6 ATP13A2 mutant C. elegans adults. Additionally, MitoSegNet was capable of accurately segmenting mitochondria in HeLa cells treated with fragmentation inducing reagents. We provide MitoSegNet in a toolbox for Windows and Linux operating systems that combines segmentation with morphological analysis.
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Affiliation(s)
- Christian A. Fischer
- Fakultät für Biologie, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
- Centre for Integrated Protein Science, Ludwig-Maximilians-University, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
- Institute of Computational Biology, Helmholtz Zentrum München – German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
| | - Laura Besora-Casals
- Fakultät für Biologie, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
| | - Stéphane G. Rolland
- Fakultät für Biologie, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
| | - Simon Haeussler
- Fakultät für Biologie, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
| | - Kritarth Singh
- Department of Cell and Developmental Biology, Division of Biosciences, University College London, London WC1E 6AP, UK
| | - Michael Duchen
- Department of Cell and Developmental Biology, Division of Biosciences, University College London, London WC1E 6AP, UK
| | - Barbara Conradt
- Fakultät für Biologie, Ludwig-Maximilians-Universität Munich, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
- Centre for Integrated Protein Science, Ludwig-Maximilians-University, Planegg-Martinsried, Munich, 82152 Bavaria, Germany
- Department of Cell and Developmental Biology, Division of Biosciences, University College London, London WC1E 6AP, UK
| | - Carsten Marr
- Institute of Computational Biology, Helmholtz Zentrum München – German Research Center for Environmental Health, Ingolstädter Landstr. 1, 85764 Neuherberg, Germany
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26
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Maackiain Ameliorates 6-Hydroxydopamine and SNCA Pathologies by Modulating the PINK1/Parkin Pathway in Models of Parkinson's Disease in Caenorhabditis elegans and the SH-SY5Y Cell Line. Int J Mol Sci 2020; 21:ijms21124455. [PMID: 32585871 PMCID: PMC7352553 DOI: 10.3390/ijms21124455] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/18/2020] [Accepted: 06/21/2020] [Indexed: 02/07/2023] Open
Abstract
The movement disorder Parkinson's disease (PD) is the second most frequently diagnosed neurodegenerative disease, and is associated with aging, the environment, and genetic factors. The intracellular aggregation of α-synuclein and the loss of dopaminergic neurons in the substantia nigra pars compacta are the pathological hallmark of PD. At present, there is no successful treatment for PD. Maackiain (MK) is a flavonoid extracted from dried roots of Sophora flavescens Aiton. MK has emerged as a novel agent for PD treatment that acts by inhibiting monoamine oxidase B. In this study, we assessed the neuroprotective potential of MK in Caenorhabditis elegans and investigated possible mechanism of this neuroprotection in the human SH-SY5Y cell line. We found that MK significantly reduced dopaminergic neuron damage in 6-hydroxydopamine (6-OHDA)-exposed worms of the BZ555 strain, with corresponding improvements in food-sensing behavior and life-span. In transgenic worms of strain NL5901 treated with 0.25 mM MK, the accumulation of α-synuclein was diminished by 27% (p < 0.01) compared with that in untreated worms. Moreover, in worms and the SH-SY5Y cell line, we confirmed that the mechanism of MK-mediated protection against PD pathology may include blocking apoptosis, enhancing the ubiquitin-proteasome system, and augmenting autophagy by increasing PINK1/parkin expression. The use of small interfering RNA to downregulate parkin expression in vivo and in vitro could reverse the benefits of MK in PD models. MK may have considerable therapeutic applications in PD.
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