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Marzook H, Gupta A, Jayakumar MN, Saleh MA, Tomar D, Qaisar R, Ahmad F. GSK-3α-BNIP3 axis promotes mitophagy in human cardiomyocytes under hypoxia. Free Radic Biol Med 2024; 221:235-244. [PMID: 38815772 DOI: 10.1016/j.freeradbiomed.2024.05.041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/24/2024] [Accepted: 05/25/2024] [Indexed: 06/01/2024]
Abstract
Dysregulated autophagy/mitophagy is one of the major causes of cardiac injury in ischemic conditions. Glycogen synthase kinase-3alpha (GSK-3α) has been shown to play a crucial role in the pathophysiology of cardiac diseases. However, the precise role of GSK-3α in cardiac mitophagy remains unknown. Herein, we investigated the role of GSK-3α in cardiac mitophagy by employing AC16 human cardiomyocytes under the condition of acute hypoxia. We observed that the gain-of-GSK-3α function profoundly induced mitophagy in the AC16 cardiomyocytes post-hypoxia. Moreover, GSK-3α overexpression led to increased ROS generation and mitochondrial dysfunction in cardiomyocytes, accompanied by enhanced mitophagy displayed by increased mt-mKeima intensity under hypoxia. Mechanistically, we identified that GSK-3α promotes mitophagy through upregulation of BNIP3, caused by GSK-3α-mediated increase in expression of HIF-1α and FOXO3a in cardiomyocytes post-hypoxia. Moreover, GSK-3α displayed a physical interaction with BNIP3 and, inhibited PINK1 and Parkin recruitment to mitochondria was observed specifically under hypoxia. Taken together, we identified a novel mechanism of mitophagy in human cardiomyocytes. GSK-3α promotes mitochondrial dysfunction and regulates FOXO3a -mediated BNIP3 overexpression in cardiomyocytes to facilitate mitophagy following hypoxia. An interaction between GSK-3α and BNIP3 suggests a role of GSK-3α in BNIP3 recruitment to the mitochondrial membrane where it enhances mitophagy in stressed cardiomyocytes independent of the PINK1/Parkin.
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Affiliation(s)
- Hezlin Marzook
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Anamika Gupta
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Manju N Jayakumar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Mohamed A Saleh
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
| | - Dhanendra Tomar
- Department of Internal Medicine, Section on Cardiovascular Medicine, Wake Forest University School of Medicine, Winston-Salem, NC, 27157, USA
| | - Rizwan Qaisar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates
| | - Firdos Ahmad
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah, 27272, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah, 27272, United Arab Emirates.
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Bhardwaj K, Singh AA, Kumar H. Unveiling the Journey from the Gut to the Brain: Decoding Neurodegeneration-Gut Connection in Parkinson's Disease. ACS Chem Neurosci 2024; 15:2454-2469. [PMID: 38896463 DOI: 10.1021/acschemneuro.4c00293] [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] [Indexed: 06/21/2024] Open
Abstract
Parkinson's disease, a classical motor disorder affecting the dopaminergic system of the brain, has been as a disease of the brain, but this classical notion has now been viewed differently as the pathology begins in the gut and then gradually moves up to the brain regions. The microorganisms in the gut play a critical role in maintaining the physiology of the gut from maintaining barrier integrity to secretion of microbial products that maintain a healthy gut state. The pathology subsequently alters the normal composition of gut microbes and causes deleterious effects that ultimately trigger strong neuroinflammation and nonmotor symptoms along with characteristic synucleopathy, a pathological hallmark of the disease. Understanding the complex pathomechanisms in distinct and established preclinical models is the primary goal of researchers to decipher how exactly gut pathology has a central effect; the quest has led to many answered and some open-ended questions for researchers. We summarize the popular opinions and some contrasting views, concise footsteps in the treatment strategies targeting the gastrointestinal system.
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Affiliation(s)
- Kritika Bhardwaj
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Opposite Air force station, Palaj, Gandhinagar, 382355 Gujarat, India
| | - Aditya A Singh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Opposite Air force station, Palaj, Gandhinagar, 382355 Gujarat, India
| | - Hemant Kumar
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Ahmedabad (NIPER-A), Opposite Air force station, Palaj, Gandhinagar, 382355 Gujarat, India
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3
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Sarg NH, Zaher DM, Abu Jayab NN, Mostafa SH, Ismail HH, Omar HA. The interplay of p38 MAPK signaling and mitochondrial metabolism, a dynamic target in cancer and pathological contexts. Biochem Pharmacol 2024; 225:116307. [PMID: 38797269 DOI: 10.1016/j.bcp.2024.116307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2024] [Revised: 05/08/2024] [Accepted: 05/21/2024] [Indexed: 05/29/2024]
Abstract
Mitochondria play a crucial role in cellular metabolism and bioenergetics, orchestrating various cellular processes, including energy production, metabolism, adaptation to stress, and redox balance. Besides, mitochondria regulate cellular metabolic homeostasis through coordination with multiple signaling pathways. Importantly, the p38 mitogen-activated protein kinase (MAPK) signaling pathway is a key player in the intricate communication with mitochondria, influencing various functions. This review explores the multifaced interaction between the mitochondria and p38 MAPK signaling and the consequent impact on metabolic alterations. Overall, the p38 MAPK pathway governs the activities of key mitochondrial proteins, which are involved in mitochondrial biogenesis, oxidative phosphorylation, thermogenesis, and iron homeostasis. Additionally, p38 MAPK contributes to the regulation of mitochondrial responses to oxidative stress and apoptosis induced by cancer therapies or natural substances by coordinating with other pathways responsible for energy homeostasis. Therefore, dysregulation of these interconnected pathways can lead to various pathologies characterized by aberrant metabolism. Consequently, gaining a deeper understanding of the interaction between mitochondria and the p38 MAPK pathway and their implications presents exciting forecasts for novel therapeutic interventions in cancer and other disorders characterized by metabolic dysregulation.
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Affiliation(s)
- Nadin H Sarg
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Dana M Zaher
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Nour N Abu Jayab
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Salma H Mostafa
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Hussein H Ismail
- College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Hany A Omar
- Research Institute for Medical and Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; College of Pharmacy, University of Sharjah, Sharjah 27272, United Arab Emirates.
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4
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Helgudóttir SS, Mørkholt AS, Lichota J, Bruun-Nyzell P, Andersen MC, Kristensen NMJ, Johansen AK, Zinn MR, Jensdóttir HM, Nieland JDV. Rethinking neurodegenerative diseases: neurometabolic concept linking lipid oxidation to diseases in the central nervous system. Neural Regen Res 2024; 19:1437-1445. [PMID: 38051885 PMCID: PMC10883494 DOI: 10.4103/1673-5374.387965] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 09/21/2023] [Indexed: 12/07/2023] Open
Abstract
ABSTRACT Currently, there is a lack of effective medicines capable of halting or reversing the progression of neurodegenerative disorders, including amyotrophic lateral sclerosis, Parkinson's disease, multiple sclerosis, or Alzheimer's disease. Given the unmet medical need, it is necessary to reevaluate the existing paradigms of how to target these diseases. When considering neurodegenerative diseases from a systemic neurometabolic perspective, it becomes possible to explain the shared pathological features. This innovative approach presented in this paper draws upon extensive research conducted by the authors and researchers worldwide. In this review, we highlight the importance of metabolic mitochondrial dysfunction in the context of neurodegenerative diseases. We provide an overview of the risk factors associated with developing neurodegenerative disorders, including genetic, epigenetic, and environmental factors. Additionally, we examine pathological mechanisms implicated in these diseases such as oxidative stress, accumulation of misfolded proteins, inflammation, demyelination, death of neurons, insulin resistance, dysbiosis, and neurotransmitter disturbances. Finally, we outline a proposal for the restoration of mitochondrial metabolism, a crucial aspect that may hold the key to facilitating curative therapeutic interventions for neurodegenerative disorders in forthcoming advancements.
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Affiliation(s)
| | | | - Jacek Lichota
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | | | - Mads Christian Andersen
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Nanna Marie Juhl Kristensen
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Amanda Krøger Johansen
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Mikela Reinholdt Zinn
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - Hulda Maria Jensdóttir
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
| | - John Dirk Vestergaard Nieland
- 2N Pharma ApS, NOVI Science Park, Aalborg, Denmark
- Molecular Pharmacology Group, Department of Health Science and Technology, Aalborg University, Aalborg, Denmark
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Kopp W. Aging and "Age-Related" Diseases - What Is the Relation? Aging Dis 2024:AD.2024.0570. [PMID: 39012663 DOI: 10.14336/ad.2024.0570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2024] [Accepted: 06/28/2024] [Indexed: 07/17/2024] Open
Abstract
The study explores the intricate relationship between aging and the development of noncommunicable diseases [NCDs], focusing on whether these diseases are inevitable consequences of aging or primarily driven by lifestyle factors. By examining epidemiological data, particularly from hunter-gatherer societies, the study highlights that many NCDs prevalent in modern populations are rare in these societies, suggesting a significant influence of lifestyle choices. It delves into the mechanisms through which poor diet, smoking, and other lifestyle factors contribute to systemic physiological imbalances, characterized by oxidative stress, insulin resistance and hyperinsulinemia, and dysregulation of the sympathetic nervous system, the renin-angiotensin-aldosterone system, and the immune system. The interplay between this pattern and individual factors such as genetic susceptibility, biological variability, epigenetic changes and the microbiome is proposed to play a crucial role in the development of a range of age-related NCDs. Modified biomolecules such as oxysterols and advanced glycation end products also contribute to their development. Specific diseases such as benign prostatic hyperplasia, Parkinson's disease, glaucoma and osteoarthritis are analyzed to illustrate these mechanisms. The study concludes that while aging contributes to the risk of NCDs, lifestyle factors play a crucial role, offering potential avenues for prevention and intervention through healthier living practices. One possible approach could be to try to restore the physiological balance, e.g. through dietary measures [e.g. Mediterranean diet, Okinawan diet or Paleolithic diet] in conjunction with [a combination of] pharmacological interventions and other lifestyle changes.
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Barbuti PA. A-Syn(ful) MAM: A Fresh Perspective on a Converging Domain in Parkinson's Disease. Int J Mol Sci 2024; 25:6525. [PMID: 38928232 PMCID: PMC11203789 DOI: 10.3390/ijms25126525] [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: 04/07/2024] [Revised: 06/03/2024] [Accepted: 06/11/2024] [Indexed: 06/28/2024] Open
Abstract
Parkinson's disease (PD) is a disease of an unknown origin. Despite that, decades of research have provided considerable evidence that alpha-synuclein (αSyn) is central to the pathogenesis of disease. Mitochondria-associated endoplasmic reticulum (ER) membranes (MAMs) are functional domains formed at contact sites between the ER and mitochondria, with a well-established function of MAMs being the control of lipid homeostasis within the cell. Additionally, there are numerous proteins localized or enriched at MAMs that have regulatory roles in several different molecular signaling pathways required for cellular homeostasis, such as autophagy and neuroinflammation. Alterations in several of these signaling pathways that are functionally associated with MAMs are found in PD. Taken together with studies that find αSyn localized at MAMs, this has implicated MAM (dys)function as a converging domain relevant to PD. This review will highlight the many functions of MAMs and provide an overview of the literature that finds αSyn, in addition to several other PD-related proteins, localized there. This review will also detail the direct interaction of αSyn and αSyn-interacting partners with specific MAM-resident proteins. In addition, recent studies exploring new methods to investigate MAMs will be discussed, along with some of the controversies regarding αSyn, including its several conformations and subcellular localizations. The goal of this review is to highlight and provide insight on a domain that is incompletely understood and, from a PD perspective, highlight those complex interactions that may hold the key to understanding the pathomechanisms underlying PD, which may lead to the targeted development of new therapeutic strategies.
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Affiliation(s)
- Peter A Barbuti
- Department of Neurology, Columbia University Irving Medical Center, New York, NY 10032, USA
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7
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Gathings A, Zaman V, Banik NL, Haque A. Insights into Calpain Activation and Rho-ROCK Signaling in Parkinson's Disease and Aging. Biomedicines 2024; 12:1074. [PMID: 38791036 PMCID: PMC11117523 DOI: 10.3390/biomedicines12051074] [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: 04/03/2024] [Revised: 04/26/2024] [Accepted: 05/02/2024] [Indexed: 05/26/2024] Open
Abstract
Parkinson's disease (PD), a progressive neurodegenerative disease, has no cure, and current therapies are not effective at halting disease progression. The disease affects mid-brain dopaminergic neurons and, subsequently, the spinal cord, contributing to many debilitating symptoms associated with PD. The GTP-binding protein, Rho, plays a significant role in the cellular pathology of PD. The downstream effector of Rho, Rho-associated kinase (ROCK), plays multiple functions, including microglial activation and induction of inflammatory responses. Activated microglia have been implicated in the pathology of many neurodegenerative diseases, including PD, that initiate inflammatory responses, leading to neuron death. Calpain expression and activity is increased following glial activation, which triggers the Rho-ROCK pathway and induces inflammatory T cell activation and migration as well as mediates toxic α-synuclein (α-syn) aggregation and neuron death, indicating a pivotal role for calpain in the inflammatory and degenerative processes in PD. Increased calpain activity and Rho-ROCK activation may represent a new mechanism for increased oxidative damage in aging. This review will summarize calpain activation and the role of the Rho-ROCK pathway in oxidative stress and α-syn aggregation, their influence on the neurodegenerative process in PD and aging, and possible strategies and research directions for therapeutic intervention.
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Affiliation(s)
- Amy Gathings
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA; (A.G.); (N.L.B.)
- Department of Neurosurgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC 29425, USA;
| | - Vandana Zaman
- Department of Neurosurgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC 29425, USA;
- Ralph H. Johnson Veterans Administration Medical Center, 109 Bee Street, Charleston, SC 29401, USA
| | - Narendra L. Banik
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA; (A.G.); (N.L.B.)
- Department of Neurosurgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC 29425, USA;
- Ralph H. Johnson Veterans Administration Medical Center, 109 Bee Street, Charleston, SC 29401, USA
| | - Azizul Haque
- Department of Microbiology and Immunology, Medical University of South Carolina, 173 Ashley Avenue, Charleston, SC 29425, USA; (A.G.); (N.L.B.)
- Department of Neurosurgery, Medical University of South Carolina, 96 Jonathan Lucas Street, Charleston, SC 29425, USA;
- Ralph H. Johnson Veterans Administration Medical Center, 109 Bee Street, Charleston, SC 29401, USA
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8
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Zhang H, Yang J, Guo Y, Lü P, Gong X, Chen K, Li X, Tang M. Rotenone-induced PINK1/Parkin-mediated mitophagy: establishing a silkworm model for Parkinson's disease potential. Front Mol Neurosci 2024; 17:1359294. [PMID: 38706874 PMCID: PMC11066238 DOI: 10.3389/fnmol.2024.1359294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Accepted: 03/22/2024] [Indexed: 05/07/2024] Open
Abstract
Parkinson's disease (PD), ranking as the second most prevalent neurodegenerative disorder globally, presents a pressing need for innovative animal models to deepen our understanding of its pathophysiology and explore potential therapeutic interventions. The development of such animal models plays a pivotal role in unraveling the complexities of PD and investigating promising treatment avenues. In this study, we employed transcriptome sequencing on BmN cells treated with 1 μg/ml rotenone, aiming to elucidate the underlying toxicological mechanisms. The investigation brought to light a significant reduction in mitochondrial membrane potential induced by rotenone, subsequently triggering mitophagy. Notably, the PTEN induced putative kinase 1 (PINK1)/Parkin pathway emerged as a key player in the cascade leading to rotenone-induced mitophagy. Furthermore, our exploration extended to silkworms exposed to 50 μg/ml rotenone, revealing distinctive motor dysfunction as well as inhibition of Tyrosine hydroxylase (TH) gene expression. These observed effects not only contribute valuable insights into the impact and intricate mechanisms of rotenone exposure on mitophagy but also provide robust scientific evidence supporting the utilization of rotenone in establishing a PD model in the silkworm. This comprehensive investigation not only enriches our understanding of the toxicological pathways triggered by rotenone but also highlights the potential of silkworms as a valuable model organism for PD research.
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Affiliation(s)
- Hantao Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Jinyue Yang
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
| | - Yinglu Guo
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Peng Lü
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xun Gong
- Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, China
| | - Keping Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
| | - Xiubin Li
- Department of Neurology, The Second Affiliated Hospital of Shandong First Medical University, Taian, Shandong, China
| | - Min Tang
- School of Life Sciences, Jiangsu University, Zhenjiang, Jiangsu, China
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Cheslow L, Byrne M, Kopenhaver JS, Iacovitti L, Smeyne RJ, Snook AE, Waldman SA. GUCY2C signaling limits dopaminergic neuron vulnerability to toxic insults. NPJ Parkinsons Dis 2024; 10:83. [PMID: 38615030 PMCID: PMC11016112 DOI: 10.1038/s41531-024-00697-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 03/26/2024] [Indexed: 04/15/2024] Open
Abstract
Mitochondrial dysfunction and reactive oxygen species (ROS) accumulation within the substantia nigra pars compacta (SNpc) are central drivers of dopaminergic (DA) neuron death in Parkinson's disease (PD). Guanylyl cyclases and their second messenger cyclic (c)GMP support mitochondrial function, protecting against ROS and promoting cell survival in several tissues. However, the role of the guanylyl cyclase-cGMP axis in defining the vulnerability of DA neurons in the SNpc in PD remains unclear, in part due to the challenge of manipulating cGMP levels selectively in midbrain DA neurons. In that context, guanylyl cyclase C (GUCY2C), a receptor primarily expressed by intestinal epithelial cells, was discovered recently in midbrain DA neurons. Here, we demonstrate that GUCY2C promotes mitochondrial function, reducing oxidative stress and protecting DA neurons from degeneration in the 1-methyl-4-phenyl- 1,2,3,6-tetrahydropyridine (MPTP) mouse model. GUCY2C is overexpressed in the SNpc in PD patients and in mice treated with MPTP, possibly reflecting a protective response to oxidative stress. Moreover, cGMP signaling protects against oxidative stress, mitochondrial impairment, and cell death in cultured DA neurons. These observations reveal a previously unexpected role for the GUCY2C-cGMP signaling axis in controlling mitochondrial dysfunction and toxicity in SNpc DA neurons, highlighting the therapeutic potential of targeting DA neuron GUCY2C to prevent neurodegeneration in PD.
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Affiliation(s)
- Lara Cheslow
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Matthew Byrne
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jessica S Kopenhaver
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lorraine Iacovitti
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Richard J Smeyne
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Adam E Snook
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Microbiology & Immunology, Thomas Jefferson University, Philadelphia, PA, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Scott A Waldman
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA.
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA.
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Choudhury D, Rong N, Senthil Kumar HV, Swedick S, Samuel RZ, Mehrotra P, Toftegaard J, Rajabian N, Thiyagarajan R, Podder AK, Wu Y, Shahini S, Seldeen KL, Troen B, Lei P, Andreadis ST. Proline restores mitochondrial function and reverses aging hallmarks in senescent cells. Cell Rep 2024; 43:113738. [PMID: 38354087 DOI: 10.1016/j.celrep.2024.113738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 12/04/2023] [Accepted: 01/19/2024] [Indexed: 02/16/2024] Open
Abstract
Mitochondrial dysfunction is a hallmark of cellular senescence, with the loss of mitochondrial function identified as a potential causal factor contributing to senescence-associated decline in cellular functions. Our recent findings revealed that ectopic expression of the pluripotency transcription factor NANOG rejuvenates dysfunctional mitochondria of senescent cells by rewiring metabolic pathways. In this study, we report that NANOG restores the expression of key enzymes, PYCR1 and PYCR2, in the proline biosynthesis pathway. Additionally, senescent mesenchymal stem cells manifest severe mitochondrial respiratory impairment, which is alleviated through proline supplementation. Proline induces mitophagy by activating AMP-activated protein kinase α and upregulating Parkin expression, enhancing mitochondrial clearance and ultimately restoring cell metabolism. Notably, proline treatment also mitigates several aging hallmarks, including DNA damage, senescence-associated β-galactosidase, inflammatory cytokine expressions, and impaired myogenic differentiation capacity. Overall, this study highlights the role of proline in mitophagy and its potential in reversing senescence-associated mitochondrial dysfunction and aging hallmarks.
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Affiliation(s)
- Debanik Choudhury
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Na Rong
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | | | - Sydney Swedick
- Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Ronel Z Samuel
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Pihu Mehrotra
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - John Toftegaard
- Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Nika Rajabian
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Ramkumar Thiyagarajan
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Ashis K Podder
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Yulun Wu
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Shahryar Shahini
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Kenneth L Seldeen
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Bruce Troen
- Department of Medicine, Division of Geriatrics and Palliative Medicine, Buffalo, NY 14203, USA
| | - Pedro Lei
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA
| | - Stelios T Andreadis
- Department of Chemical and Biological Engineering, University at Buffalo, Buffalo, NY 14260, USA; Department of Biomedical Engineering, University at Buffalo, Buffalo, NY 14260, USA; Center of Excellence in Bioinformatics and Life Sciences, University at Buffalo, Buffalo, NY 14263, USA; Center for Cell, Gene and Tissue Engineering (CGTE), University at Buffalo, Buffalo, NY 14260, USA.
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11
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Biswal L, Sardoiwala MN, Kushwaha AC, Mukherjee S, Karmakar S. Melatonin-Loaded Nanoparticles Augment Mitophagy to Retard Parkinson's Disease. ACS APPLIED MATERIALS & INTERFACES 2024; 16:8417-8429. [PMID: 38344952 DOI: 10.1021/acsami.3c17092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
The molecular pathways that melatonin follows as a Parkinson's disease (PD) antagonist remain poorly elucidated, despite it being a safe and a potential neurotherapeutic drug with a few limitations such as less bioavailability, premature oxidation, brain delivery, etc. Here, we used a biocompatible protein (HSA) nanocarrier for the delivery of melatonin to the brain. This nanomelatonin showed better antioxidative and neuroprotective properties, and it not only improves mitophagy to remove unhealthy mitochondria but also improves mitochondrial biogenesis to counteract rotenone-induced toxicity in an in vitro PD model. We also showed BMI1, a member of the PRC1 complex that regulates mitophagy, whose protein expression was enhanced after nanomelatonin dosage. These effects were translated to a rodent model, where nanomelatonin improves the TH+ve neuron population in SNPC and protects against rotenone-mediated toxicity. Our findings highlight the significantly better in vitro and in vivo neuroprotective effect of nanomelatonin as well as the molecular/cellular dynamics it influences to regulate mitophagy as a measure of the potential therapeutic candidate for PD.
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Affiliation(s)
- Liku Biswal
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
| | | | | | - Syamantak Mukherjee
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
| | - Surajit Karmakar
- Institute of Nano Science and Technology, Knowledge City, Sector 81, Mohali 140306, India
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12
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Pinjala P, Tryphena KP, Kulkarni A, Goswami PG, Khatri DK. Dimethyl Fumarate Exerts a Neuroprotective Effect by Enhancing Mitophagy via the NRF2/BNIP3/PINK1 Axis in the MPP + Iodide-Induced Parkinson's Disease Mice Model. J Alzheimers Dis Rep 2024; 8:329-344. [PMID: 38405353 PMCID: PMC10894611 DOI: 10.3233/adr-230128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/28/2023] [Indexed: 02/27/2024] Open
Abstract
Background Parkinson's disease (PD) is a progressive neurodegenerative disorder linked to the loss of dopaminergic neurons in the substantia nigra. Mitophagy, mitochondrial selective autophagy, is critical in maintaining mitochondrial and subsequently neuronal homeostasis. Its impairment is strongly implicated in PD and is associated with accelerated neurodegeneration. Objective To study the positive effect of dimethyl fumarate (DMF) on mitophagy via the NRF2/BNIP3/PINK1 axis activation in PD disease models. Methods The neuroprotective effect of DMF was explored in in vitro and in vivo PD models. MTT assay was performed to determine the DMF dose followed by JC-1 assay to study its mitoprotective effect in MPP+ exposed SHSY5Y cells. For the in vivo study, C57BL/6 mice were divided into six groups: Normal Control (NC), Disease Control (DC), Sham (Saline i.c.v.), Low Dose (MPP+ iodide+DMF 15 mg/kg), Mid Dose (MPP+ iodide+DMF 30 mg/kg), and High Dose (MPP+ iodide+DMF 60 mg/kg). The neuroprotective effect of DMF was assessed by performing rotarod, open field test, and pole test, and biochemical parameter analysis using immunofluorescence, western blot, and RT-PCR. Results DMF treatment significantly alleviated the loss of TH positive dopaminergic neurons and enhanced mitophagy by increasing PINK1, Parkin, BNIP3, and LC3 levels in the MPP+ iodide-induced PD mice model. DMF treatment groups showed good locomotor activity and rearing time when compared to the DC group. Conclusions DMF confers neuroprotection by activating the BNIP3/PINK1/Parkin pathway, enhancing the autophagosome formation via LC3, and improving mitophagy in PD models, and could be a potential therapeutic option in PD.
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Affiliation(s)
- Poojitha Pinjala
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Kamatham Pushpa Tryphena
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Amrita Kulkarni
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Prince Giri Goswami
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
| | - Dharmendra Kumar Khatri
- Department of Pharmacology and Toxicology, Molecular and Cellular Neuroscience Lab, National Institute of Pharmaceutical Education and Research (NIPER), Hyderabad, Telangana, India
- Department of Pharmacology, Shobhaben Pratapbai Patel School of Pharmacy and Technology Management, SVKM’s Narsee Monjee Institute of Management Studies (NMIMS) Deemed-to-be-University, Mumbai, India
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13
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Liu K, Wang H, Wang Y, Zhang X, Wang R, Zhang Z, Wang J, Lu X, Wu X, Han Y. Exploring the therapeutic potential of Sirt6-enriched adipose stem cell-derived exosomes in myocardial ischemia-reperfusion injury: unfolding new epigenetic frontiers. Clin Epigenetics 2024; 16:7. [PMID: 38172884 PMCID: PMC10765803 DOI: 10.1186/s13148-023-01618-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
BACKGROUND The management of myocardial ischemia-reperfusion injury (MIRI) presents continuous therapeutic challenges. NAD-dependent deacetylase Sirtuin 6 (Sirt6) plays distinct roles in various disease contexts and is hence investigated for potential therapeutic applications for MIRI. This study aimed to examine the impact of Sirt6-overexpressing exosomes derived from adipose stem cells (S-ASC-Exo) on MIRI, focusing on their influence on AIM2-pyroptosis and mitophagy processes. The sirtuin family of proteins, particularly Sirtuin 6 (Sirt6), play a pivotal role in these processes. This study aimed to explore the potential therapeutic effects of Sirt6-enriched exosomes derived from adipose stem cells (S-ASC-Exo) on regulating MIRI. RESULTS Bioinformatic analysis revealed a significant downregulation of Sirt6 in MIRI subjected to control group, causing a consequential increase in mitophagy and pyroptosis regulator expressions. Therefore, our study revealed that Sirt6-enriched exosomes influenced the progression of MIRI through the regulation of target proteins AIM2 and GSDMD, associated with pyroptosis, and p62 and Beclin-1, related to mitophagy. The introduction of S-ASC-Exo inhibited AIM2-pyroptosis while enhancing mitophagy. Consequently, this led to a significant reduction of GSDMD cleavage and pyroptosis in endothelial cells, catalyzing a deceleration in the progression of atherosclerosis. Extensive in vivo and in vitro assays were performed to validate the expressions of these specific genes and proteins, which affirmed the dynamic modulation by Sirt6-enriched exosomes. Furthermore, treatment with S-ASC-Exo drastically ameliorated cardiac functions and limited infarct size, underlining their cardioprotective attributes. CONCLUSIONS Our study underscores the potential therapeutic role of Sirt6-enriched exosomes in managing MIRI. We demonstrated their profound cardioprotective effect, evident in the enhanced cardiac function and attenuated tissue damage, through the strategic modulation of AIM2-pyroptosis and mitophagy. Given the intricate interplay between Sirt6 and the aforementioned processes, a comprehensive understanding of these pathways is essential to fully exploit the therapeutic potential of Sirt6. Altogether, our findings indicate the promise of Sirt6-enriched exosomes as a novel therapeutic strategy in treating ischemia-reperfusion injuries and cardiovascular diseases at large. Future research needs to underscore optimizing the balance of mitophagy during myocardial ischemia to avoid potential loss of normal myocytes.
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Affiliation(s)
- Kun Liu
- Department of Cardiac Surgery, Affiliated Hospital, Guizhou Medical University, Guiyang, China
| | - Hecheng Wang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Yiou Wang
- Department of Anesthesiology, General Hospital of Northern Theater Command, Shenyang, China
| | - Xiaoxu Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Ruihu Wang
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaoxuan Zhang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Jian Wang
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xinran Lu
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China
| | - Xiaoyu Wu
- Department of Vascular Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yanshuo Han
- School of Life and Pharmaceutical Sciences, Dalian University of Technology, Panjin, China.
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14
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Yang Y, Wang P, Guo J, Ma T, Hu Y, Huang L, Xing B, He Y, Xi J. Zinc Overload Induces Damage to H9c2 Cardiomyocyte Through Mitochondrial Dysfunction and ROS-Mediated Mitophagy. Cardiovasc Toxicol 2023; 23:388-405. [PMID: 37845565 DOI: 10.1007/s12012-023-09811-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/23/2023] [Indexed: 10/18/2023]
Abstract
Zinc homeostasis is essential for maintaining redox balance, cell proliferation, and apoptosis. However, excessive zinc exposure is toxic and leads to mitochondrial dysfunction. In this study, we established a zinc overload model by treating rat cardiomyocyte H9c2 cells with Zn2+ at different concentrations. Our results showed that zinc overload increased LDH and reactive oxygen species (ROS) levels, leading to cell death, mitochondrial membrane potential decrease and impaired mitochondrial function and dynamics. Furthermore, zinc overload activated the PINK1/Parkin signaling pathway and induced mitochondrial autophagy via ROS, while NAC inhibited mitophagy and weakened the activation of PINK1/Parkin pathway, thereby preserving mitochondrial biogenesis. In addition, our data also showed that Mfn2 deletion increased ROS production and exacerbated cytotoxicity induced by zinc overload. Our results therefore suggest that Zn2+-induced ROS generation causes mitochondrial autophagy and mitochondrial dysfunction, damaging H9c2 cardiomyocytes. Additionally, Mfn2 may play a key role in zinc ion-mediated endoplasmic reticulum and mitochondrial interactions. Our results provide a new perspective on zinc-induced toxicology.
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Affiliation(s)
- Ying Yang
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Pei Wang
- School of Public Health, North China University of Science and Technology, Tangshan, China
| | - Jiabao Guo
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China
| | - Tingting Ma
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China
| | - Youcheng Hu
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Luyao Huang
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Bohan Xing
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China
| | - Yonggui He
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China.
- Affiliated Hospital, North China University of Science and Technology, Tangshan, China.
| | - Jinkun Xi
- Basic School of Medicine, Hebei Key Laboratory for Chronic Diseases, North China University of Science and Technology, Tangshan, China.
- Clinic School of Medicine and Affiliated Hospital, Hebei Key Laboratory of Medical-Industrial Integration Precision Medicine, North China University of Science and Technology, Tangshan, 063000, China.
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15
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Alshial EE, Abdulghaney MI, Wadan AHS, Abdellatif MA, Ramadan NE, Suleiman AM, Waheed N, Abdellatif M, Mohammed HS. Mitochondrial dysfunction and neurological disorders: A narrative review and treatment overview. Life Sci 2023; 334:122257. [PMID: 37949207 DOI: 10.1016/j.lfs.2023.122257] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/27/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
Mitochondria play a vital role in the nervous system, as they are responsible for generating energy in the form of ATP and regulating cellular processes such as calcium (Ca2+) signaling and apoptosis. However, mitochondrial dysfunction can lead to oxidative stress (OS), inflammation, and cell death, which have been implicated in the pathogenesis of various neurological disorders. In this article, we review the main functions of mitochondria in the nervous system and explore the mechanisms related to mitochondrial dysfunction. We discuss the role of mitochondrial dysfunction in the development and progression of some neurological disorders including Parkinson's disease (PD), multiple sclerosis (MS), Alzheimer's disease (AD), depression, and epilepsy. Finally, we provide an overview of various current treatment strategies that target mitochondrial dysfunction, including pharmacological treatments, phototherapy, gene therapy, and mitotherapy. This review emphasizes the importance of understanding the role of mitochondria in the nervous system and highlights the potential for mitochondrial-targeted therapies in the treatment of neurological disorders. Furthermore, it highlights some limitations and challenges encountered by the current therapeutic strategies and puts them in future perspective.
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Affiliation(s)
- Eman E Alshial
- Biochemistry Department, Faculty of Science, Damanhour University, Al Buhayrah, Egypt
| | | | - Al-Hassan Soliman Wadan
- Department of Oral Biology, Faculty of Dentistry, Sinai University, Arish, North Sinai, Egypt
| | | | - Nada E Ramadan
- Department of Biotechnology, Faculty of Science, Tanta University, Gharbia, Egypt
| | | | - Nahla Waheed
- Biochemistry Department, Faculty of Science, Mansoura University, Egypt
| | | | - Haitham S Mohammed
- Biophysics Department, Faculty of Science, Cairo University, Giza, Egypt.
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16
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Cheslow L, Byrne M, Kopenhaver JS, Iacovitti L, Smeyne RJ, Snook AE, Waldman SA. GUCY2C signaling limits dopaminergic neuron vulnerability to toxic insults. RESEARCH SQUARE 2023:rs.3.rs-3416338. [PMID: 37886524 PMCID: PMC10602097 DOI: 10.21203/rs.3.rs-3416338/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/28/2023]
Abstract
Mitochondrial dysfunction and reactive oxygen species (ROS) accumulation within the substantia nigra pars compacta (SNpc) are central drivers of dopaminergic (DA) neuron death in Parkinson's disease (PD). Guanylyl cyclases, and their second messengers cyclic (c)GMP, support mitochondrial function, protecting against ROS and promoting cell survival in a number of tissues. However, the role of the guanylyl cyclase-cGMP axis in defining the vulnerability of DA neurons in the SNpc in PD remains unclear, in part due to the challenge of manipulating cGMP levels selectively in midbrain DA neurons. In that context, guanylyl cyclase C (GUCY2C), a receptor primarily expressed by intestinal epithelial cells, was discovered recently in midbrain DA neurons. Here, we demonstrate that GUCY2C promotes mitochondrial function, reducing oxidative stress and protecting DA neurons from degeneration in the 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) mouse model of neurodegeneration. GUCY2C is overexpressed in the SNpc in PD patients and in mice treated with MPTP, possibly reflecting a protective response to oxidative stress. Moreover, cGMP signaling protects against oxidative stress, mitochondrial impairment, and cell death in cultured DA neurons. These observations reveal a previously unexpected role for the GUCY2C-cGMP signaling axis in controlling mitochondrial dysfunction and toxicity in nigral DA neurons, highlighting the therapeutic potential of targeting DA neuron GUCY2C to prevent neurodegeneration in PD.
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Affiliation(s)
- Lara Cheslow
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Matthew Byrne
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Jessica S. Kopenhaver
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
| | - Lorraine Iacovitti
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Richard J. Smeyne
- Department of Neurosciences, Thomas Jefferson University, Philadelphia, PA, USA
| | - Adam E. Snook
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- Department of Microbiology & Immunology, Thomas Jefferson University, Philadelphia, PA, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
| | - Scott A. Waldman
- Department of Pharmacology, Physiology, & Cancer Biology, Thomas Jefferson University, Philadelphia, PA, USA
- Sidney Kimmel Cancer Center, Thomas Jefferson University, Philadelphia, PA, USA
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17
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Ham SJ, Yoo H, Woo D, Lee DH, Park KS, Chung J. PINK1 and Parkin regulate IP 3R-mediated ER calcium release. Nat Commun 2023; 14:5202. [PMID: 37626046 PMCID: PMC10457342 DOI: 10.1038/s41467-023-40929-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Although defects in intracellular calcium homeostasis are known to play a role in the pathogenesis of Parkinson's disease (PD), the underlying molecular mechanisms remain unclear. Here, we show that loss of PTEN-induced kinase 1 (PINK1) and Parkin leads to dysregulation of inositol 1,4,5-trisphosphate receptor (IP3R) activity, robustly increasing ER calcium release. In addition, we identify that CDGSH iron sulfur domain 1 (CISD1, also known as mitoNEET) functions downstream of Parkin to directly control IP3R. Both genetic and pharmacologic suppression of CISD1 and its Drosophila homolog CISD (also known as Dosmit) restore the increased ER calcium release in PINK1 and Parkin null mammalian cells and flies, respectively, demonstrating the evolutionarily conserved regulatory mechanism of intracellular calcium homeostasis by the PINK1-Parkin pathway. More importantly, suppression of CISD in PINK1 and Parkin null flies rescues PD-related phenotypes including defective locomotor activity and dopaminergic neuronal degeneration. Based on these data, we propose that the regulation of ER calcium release by PINK1 and Parkin through CISD1 and IP3R is a feasible target for treating PD pathogenesis.
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Affiliation(s)
- Su Jin Ham
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- Interdisciplinary Graduate Program in Genetic Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Heesuk Yoo
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- Interdisciplinary Graduate Program in Genetic Engineering, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Daihn Woo
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
| | - Da Hyun Lee
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea
| | - Kyu-Sang Park
- Department of Physiology, Yonsei University Wonju College of Medicine, Wonju, 26426, Republic of Korea
- Mitohormesis Research Center, Yonsei University Wonju College of Medicine, Wonju, 26426, Republic of Korea
| | - Jongkyeong Chung
- Institute of Molecular Biology and Genetics, Seoul National University, Seoul, 08826, Republic of Korea.
- Interdisciplinary Graduate Program in Genetic Engineering, Seoul National University, Seoul, 08826, Republic of Korea.
- School of Biological Sciences, Seoul National University, Seoul, 08826, Republic of Korea.
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18
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Bispo AG, Silva CS, Sena-dos-Santos C, Dalledone Moura D, Koshimoto BHB, Santos-Lobato BL, Ribeiro-dos-Santos Â, Cavalcante GC. Investigation of PRKN Mutations in Levodopa-Induced Dyskinesia in Parkinson's Disease Treatment. Biomedicines 2023; 11:2230. [PMID: 37626726 PMCID: PMC10452529 DOI: 10.3390/biomedicines11082230] [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: 06/26/2023] [Revised: 07/26/2023] [Accepted: 08/03/2023] [Indexed: 08/27/2023] Open
Abstract
Mitophagy is an important process that participates in mitochondrial quality control. Dysfunctions in this process can be caused by mutations in genes like PRKN and are associated with the development and progression of Parkinson's Disease (PD). The most used drug in the treatment of PD is levodopa (LD), but it can cause adverse effects, such as dyskinesia. Currently, few studies are searching for biomarkers for an effective use of lLD for this disease, especially regarding mitophagy genetics. Thus, this work investigates the association of 14 variants of the PRKN gene with LD in the treatment of PD. We recruited 70 patients with PD undergoing treatment with LD (39 without dyskinesia and 31 with dyskinesia). Genotyping was based on Sanger sequencing. Our results reinforce that age at onset of symptoms, duration of PD, and treatment and dosage of LD can influence the occurrence of dyskinesia but not the investigated PRKN variants. The perspective presented here of variants of mitophagy-related genes in the context of treatment with LD is still underexplored, although an association has been indicated in previous studies. We suggest that other variants in PRKN or in other mitophagy genes may participate in the development of levodopa-induced dyskinesia in PD treatment.
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Affiliation(s)
- Ana Gabrielle Bispo
- Laboratory of Human and Medical Genetics, Federal University of Pará, Belém 66075-110, Brazil; (A.G.B.); (C.S.S.); (C.S.-d.-S.); (Â.R.-d.-S.)
| | - Caio S. Silva
- Laboratory of Human and Medical Genetics, Federal University of Pará, Belém 66075-110, Brazil; (A.G.B.); (C.S.S.); (C.S.-d.-S.); (Â.R.-d.-S.)
| | - Camille Sena-dos-Santos
- Laboratory of Human and Medical Genetics, Federal University of Pará, Belém 66075-110, Brazil; (A.G.B.); (C.S.S.); (C.S.-d.-S.); (Â.R.-d.-S.)
| | - Dafne Dalledone Moura
- Laboratory of Experimental Neuropathology, Federal University of Pará, Belém 66075-110, Brazil; (D.D.M.); (B.H.B.K.); (B.L.S.-L.)
| | - Brenda Hanae Bentes Koshimoto
- Laboratory of Experimental Neuropathology, Federal University of Pará, Belém 66075-110, Brazil; (D.D.M.); (B.H.B.K.); (B.L.S.-L.)
| | - Bruno Lopes Santos-Lobato
- Laboratory of Experimental Neuropathology, Federal University of Pará, Belém 66075-110, Brazil; (D.D.M.); (B.H.B.K.); (B.L.S.-L.)
| | - Ândrea Ribeiro-dos-Santos
- Laboratory of Human and Medical Genetics, Federal University of Pará, Belém 66075-110, Brazil; (A.G.B.); (C.S.S.); (C.S.-d.-S.); (Â.R.-d.-S.)
| | - Giovanna C. Cavalcante
- Laboratory of Human and Medical Genetics, Federal University of Pará, Belém 66075-110, Brazil; (A.G.B.); (C.S.S.); (C.S.-d.-S.); (Â.R.-d.-S.)
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19
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Differential Role of Active Compounds in Mitophagy and Related Neurodegenerative Diseases. Toxins (Basel) 2023; 15:toxins15030202. [PMID: 36977093 PMCID: PMC10058020 DOI: 10.3390/toxins15030202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 02/28/2023] [Accepted: 03/03/2023] [Indexed: 03/08/2023] Open
Abstract
Neurodegenerative diseases, such as Alzheimer’s disease or Parkinson’s disease, significantly reduce the quality of life of patients and eventually result in complete maladjustment. Disruption of the synapses leads to a deterioration in the communication of nerve cells and decreased plasticity, which is associated with a loss of cognitive functions and neurodegeneration. Maintaining proper synaptic activity depends on the qualitative composition of mitochondria, because synaptic processes require sufficient energy supply and fine calcium regulation. The maintenance of the qualitative composition of mitochondria occurs due to mitophagy. The regulation of mitophagy is usually based on several internal mechanisms, as well as on signals and substances coming from outside the cell. These substances may directly or indirectly enhance or weaken mitophagy. In this review, we have considered the role of some compounds in process of mitophagy and neurodegeneration. Some of them have a beneficial effect on the functions of mitochondria and enhance mitophagy, showing promise as novel drugs for the treatment of neurodegenerative pathologies, while others contribute to a decrease in mitophagy.
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