1
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Huber T, Horioka-Duplix M, Chen Y, Saca VR, Ceraudo E, Chen Y, Sakmar TP. The role of signaling pathways mediated by the GPCRs CysLTR1/2 in melanocyte proliferation and senescence. Sci Signal 2024; 17:eadp3967. [PMID: 39288219 DOI: 10.1126/scisignal.adp3967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 08/15/2024] [Indexed: 09/19/2024]
Abstract
In contrast with sun exposure-induced melanoma, rarer melanocytic tumors and neoplasms with low mutational burden present opportunities to study isolated signaling mechanisms. These include uveal melanoma and blue nevi, which are often driven by mutations within the G protein-coupled signaling cascade downstream of cysteinyl leukotriene receptor 2. Here, we review how the same mutations within this pathway drive the growth of melanocytes in one tissue but can inhibit the growth of those in another, exemplifying the role of the tissue environment in the delicate balance between uncontrolled cell growth and senescence.
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Affiliation(s)
- Thomas Huber
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
| | - Mizuho Horioka-Duplix
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
- Tri-Institutional PhD Program in Chemical Biology, New York, NY 10065, USA
| | - Yuanhuang Chen
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
- Tri-Institutional PhD Program in Chemical Biology, New York, NY 10065, USA
| | - Victoria R Saca
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
- Tri-Institutional PhD Program in Chemical Biology, New York, NY 10065, USA
| | - Emilie Ceraudo
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
| | - Yu Chen
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Thomas P Sakmar
- Laboratory of Chemical Biology and Signal Transduction, Rockefeller University, New York, NY 10065, USA
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2
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Guo M, Liu R, Zhang F, Qu J, Yang Y, Li X. A new perspective on liver diseases: Focusing on the mitochondria-associated endoplasmic reticulum membranes. Pharmacol Res 2024; 208:107409. [PMID: 39284429 DOI: 10.1016/j.phrs.2024.107409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2024] [Revised: 08/29/2024] [Accepted: 09/10/2024] [Indexed: 09/19/2024]
Abstract
The pathogenesis of liver diseases is multifaceted and intricate, posing a persistent global public health challenge with limited therapeutic options. Therefore, further research into liver diseases is imperative for better comprehension and advancement in treatment strategies. Numerous studies have confirmed the endoplasmic reticulum (ER) and mitochondria as key organelles driving liver diseases. Notably, the mitochondrial-associated ER membranes (MAMs) establish a physical and functional connection between the ER and mitochondria, highlighting the importance of inter-organelle communication in maintaining their functional homeostasis. This review delves into the intricate architecture and regulative mechanism of the integrated MAM that facilitate the physiological transfer of signals and substances between organelles. Additionally, we also provide a detailed overview regarding the varied pathogenic roles of malfunctioning MAM in liver diseases, focusing on its involvement in the progression of ER stress and mitochondrial dysfunction, the regulation of mitochondrial dynamics and Ca2+ transfer, as well as the disruption of lipid and glucose homeostasis. Furthermore, the current challenges and prospects associated with MAM in liver disease research are thoroughly discussed. In conclusion, elucidating the specific structure and function of MAM in different liver diseases may pave the way for novel therapeutic strategies.
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Affiliation(s)
- Mengyu Guo
- School of Life Sciences, Beijing University of Chinese Medicine, 100029, China
| | - Runping Liu
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, 100029, China
| | - Fukun Zhang
- School of Life Sciences, Beijing University of Chinese Medicine, 100029, China
| | - Jiaorong Qu
- School of Life Sciences, Beijing University of Chinese Medicine, 100029, China
| | - Yun Yang
- School of Life Sciences, Beijing University of Chinese Medicine, 100029, China
| | - Xiaojiaoyang Li
- School of Life Sciences, Beijing University of Chinese Medicine, 100029, China.
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3
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Yao H, Xie Y, Li C, Liu W, Yi G. Mitochondria-Associated Organelle Crosstalk in Myocardial Ischemia/Reperfusion Injury. J Cardiovasc Transl Res 2024:10.1007/s12265-024-10523-9. [PMID: 38807004 DOI: 10.1007/s12265-024-10523-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 05/10/2024] [Indexed: 05/30/2024]
Abstract
Organelle damage is a significant contributor to myocardial ischemia/reperfusion (I/R) injury. This damage often leads to disruption of endoplasmic reticulum protein regulatory programs and dysfunction of mitochondrial energy metabolism. Mitochondria and endoplasmic reticulum are seamlessly connected through the mitochondrial-associated endoplasmic reticulum membrane (MAM), which serves as a crucial site for the exchange of organelles and metabolites. However, there is a lack of reports regarding the communication of information and metabolites between mitochondria and related organelles, which is a crucial factor in triggering myocardial I/R damage. To address this research gap, this review described the role of crosstalk between mitochondria and the correlative organelles such as endoplasmic reticulum, lysosomal and nuclei involved in reperfusion injury of the heart. In summary, this review aims to provide a comprehensive understanding of the crosstalk between organelles in myocardial I/R injury, with the ultimate goal of facilitating the development of targeted therapies based on this knowledge.
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Affiliation(s)
- Hui Yao
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, 28 Chang Sheng West Road, Hunan, 421001, China
| | - Yuxin Xie
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, 28 Chang Sheng West Road, Hunan, 421001, China
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, Hunan, China
| | - Chaoquan Li
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, 28 Chang Sheng West Road, Hunan, 421001, China
| | - Wanting Liu
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, 28 Chang Sheng West Road, Hunan, 421001, China
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, Hunan, China
| | - Guanghui Yi
- Institute of Cardiovascular Disease, Key Laboratory for Arteriosclerology of Hunan Province, Hunan International Scientific and Technological Cooperation Base of Arteriosclerotic Disease, Hengyang Medical College, University of South China, 28 Chang Sheng West Road, Hunan, 421001, China.
- Institute of Pharmacy and Pharmacology, Hunan Province Cooperative Innovation Center for Molecular Target New Drug Study, University of South China, Hengyang, 421001, Hunan, China.
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4
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Bertozzi G, Ferrara M, Di Fazio A, Maiese A, Delogu G, Di Fazio N, Tortorella V, La Russa R, Fineschi V. Oxidative Stress in Sepsis: A Focus on Cardiac Pathology. Int J Mol Sci 2024; 25:2912. [PMID: 38474158 DOI: 10.3390/ijms25052912] [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: 01/01/2024] [Revised: 02/09/2024] [Accepted: 02/28/2024] [Indexed: 03/14/2024] Open
Abstract
This study aims to analyze post-mortem human cardiac specimens, to verify and evaluate the existence or extent of oxidative stress in subjects whose cause of death has been traced to sepsis, through immunohistological oxidative/nitrosative stress markers. Indeed, in the present study, i-NOS, NOX2, and nitrotyrosine markers were higher expressed in the septic death group when compared to the control group, associated with also a significant increase in 8-OHdG, highlighting the pivotal role of oxidative stress in septic etiopathogenesis. In particular, 70% of cardiomyocyte nuclei from septic death specimens showed positivity for 8-OHdG. Furthermore, intense and massive NOX2-positive myocyte immunoreaction was noticed in the septic group, as nitrotyrosine immunostaining intense reaction was found in the cardiac cells. These results demonstrated a correlation between oxidative and nitrosative stress imbalance and the pathophysiology of cardiac dysfunction documented in cases of sepsis. Therefore, subsequent studies will focus on the expression of oxidative stress markers in other organs and tissues, as well as on the involvement of the intracellular pattern of apoptosis, to better clarify the complex pathogenesis of multi-organ failure, leading to support the rationale for including therapies targeting redox abnormalities in the management of septic patients.
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Affiliation(s)
| | - Michela Ferrara
- SIC Medicina Legale, Via Potito Petrone, 85100 Potenza, Italy
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00185 Rome, Italy
| | - Aldo Di Fazio
- SIC Medicina Legale, Via Potito Petrone, 85100 Potenza, Italy
| | - Aniello Maiese
- Institute of Legal Medicine, Department of Clinical and Experimental Medicine, University of Pisa, Via Roma 55, 56126 Pisa, Italy
| | - Giuseppe Delogu
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00185 Rome, Italy
| | - Nicola Di Fazio
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00185 Rome, Italy
| | - Vittoria Tortorella
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00185 Rome, Italy
| | - Raffaele La Russa
- Department of Clinical Medicine, Public Health, Life and Environment Science, University of L'Aquila, 67100 L'Aquila, Italy
| | - Vittorio Fineschi
- Department of Anatomical, Histological, Forensic and Orthopaedic Sciences, Sapienza University of Rome, Viale Regina Elena 336, 00185 Rome, Italy
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5
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Lu B, Chen X, Ma Y, Gui M, Yao L, Li J, Wang M, Zhou X, Fu D. So close, yet so far away: the relationship between MAM and cardiac disease. Front Cardiovasc Med 2024; 11:1353533. [PMID: 38374992 PMCID: PMC10875081 DOI: 10.3389/fcvm.2024.1353533] [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: 12/10/2023] [Accepted: 01/22/2024] [Indexed: 02/21/2024] Open
Abstract
Mitochondria-associated membrane (MAM) serve as crucial contact sites between mitochondria and the endoplasmic reticulum (ER). Recent research has highlighted the significance of MAM, which serve as a platform for various protein molecules, in processes such as calcium signaling, ATP production, mitochondrial structure and function, and autophagy. Cardiac diseases caused by any reason can lead to changes in myocardial structure and function, significantly impacting human health. Notably, MAM exhibits various regulatory effects to maintain cellular balance in several cardiac diseases conditions, such as obesity, diabetes mellitus, and cardiotoxicity. MAM proteins independently or interact with their counterparts, forming essential tethers between the ER and mitochondria in cardiomyocytes. This review provides an overview of key MAM regulators, detailing their structure and functions. Additionally, it explores the connection between MAM and various cardiac injuries, suggesting that precise genetic, pharmacological, and physical regulation of MAM may be a promising strategy for preventing and treating heart failure.
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Affiliation(s)
- Bo Lu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Division of Nephrology and Hypertension, Mayo Clinic, Rochester, MN, United States
| | - Xiaozhe Chen
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yulong Ma
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mingtai Gui
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lei Yao
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jianhua Li
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Mingzhu Wang
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xunjie Zhou
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Deyu Fu
- Department of Cardiology, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Shanghai University of Traditional Chinese Medicine, Shanghai, China
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6
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Camargo LL, Wang Y, Rios FJ, McBride M, Montezano AC, Touyz RM. Oxidative Stress and Endoplasmic Reticular Stress Interplay in the Vasculopathy of Hypertension. Can J Cardiol 2023; 39:1874-1887. [PMID: 37875177 DOI: 10.1016/j.cjca.2023.10.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/19/2023] [Accepted: 10/19/2023] [Indexed: 10/26/2023] Open
Abstract
Under physiologic conditions, reactive oxygen species (ROS) function as signalling molecules that control cell function. However, in pathologic conditions, increased generation of ROS triggers oxidative stress, which plays a role in vascular changes associated with hypertension, including endothelial dysfunction, vascular reactivity, and arterial remodelling (termed the vasculopathy of hypertension). The major source of ROS in the vascular system is NADPH oxidase (NOX). Increased NOX activity drives vascular oxidative stress in hypertension. Molecular mechanisms underlying vascular damage in hypertension include activation of redox-sensitive signalling pathways, post-translational modification of proteins, and oxidative damage of DNA and cytoplasmic proteins. In addition, oxidative stress leads to accumulation of proteins in the endoplasmic reticulum (ER) (termed ER stress), with consequent activation of the unfolded protein response (UPR). ER stress is emerging as a potential player in hypertension as abnormal protein folding in the ER leads to oxidative stress and dysregulated activation of the UPR promotes inflammation and injury in vascular and cardiac cells. In addition, the ER engages in crosstalk with exogenous sources of ROS, such as mitochondria and NOX, which can amplify redox processes. Here we provide an update of the role of ROS and NOX in hypertension and discuss novel concepts on the interplay between oxidative stress and ER stress.
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Affiliation(s)
- Livia L Camargo
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada.
| | - Yu Wang
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Francisco J Rios
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Martin McBride
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Augusto C Montezano
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada
| | - Rhian M Touyz
- Research Institute of the McGill University Health Centre, Montréal, Québec, Canada; McGill University, Department of Medicine and Department of Family Medicine, Montréal, Québec, Canada.
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7
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Heusch G, Andreadou I, Bell R, Bertero E, Botker HE, Davidson SM, Downey J, Eaton P, Ferdinandy P, Gersh BJ, Giacca M, Hausenloy DJ, Ibanez B, Krieg T, Maack C, Schulz R, Sellke F, Shah AM, Thiele H, Yellon DM, Di Lisa F. Health position paper and redox perspectives on reactive oxygen species as signals and targets of cardioprotection. Redox Biol 2023; 67:102894. [PMID: 37839355 PMCID: PMC10590874 DOI: 10.1016/j.redox.2023.102894] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/04/2023] [Accepted: 09/15/2023] [Indexed: 10/17/2023] Open
Abstract
The present review summarizes the beneficial and detrimental roles of reactive oxygen species in myocardial ischemia/reperfusion injury and cardioprotection. In the first part, the continued need for cardioprotection beyond that by rapid reperfusion of acute myocardial infarction is emphasized. Then, pathomechanisms of myocardial ischemia/reperfusion to the myocardium and the coronary circulation and the different modes of cell death in myocardial infarction are characterized. Different mechanical and pharmacological interventions to protect the ischemic/reperfused myocardium in elective percutaneous coronary interventions and coronary artery bypass grafting, in acute myocardial infarction and in cardiotoxicity from cancer therapy are detailed. The second part keeps the focus on ROS providing a comprehensive overview of molecular and cellular mechanisms involved in ischemia/reperfusion injury. Starting from mitochondria as the main sources and targets of ROS in ischemic/reperfused myocardium, a complex network of cellular and extracellular processes is discussed, including relationships with Ca2+ homeostasis, thiol group redox balance, hydrogen sulfide modulation, cross-talk with NAPDH oxidases, exosomes, cytokines and growth factors. While mechanistic insights are needed to improve our current therapeutic approaches, advancements in knowledge of ROS-mediated processes indicate that detrimental facets of oxidative stress are opposed by ROS requirement for physiological and protective reactions. This inevitable contrast is likely to underlie unsuccessful clinical trials and limits the development of novel cardioprotective interventions simply based upon ROS removal.
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Affiliation(s)
- Gerd Heusch
- Institute for Pathophysiology, West German Heart and Vascular Center, University of Duisburg-Essen, Essen, Germany.
| | - Ioanna Andreadou
- Laboratory of Pharmacology, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Robert Bell
- The Hatter Cardiovascular Institute, University College London, London, United Kingdom
| | - Edoardo Bertero
- Chair of Cardiovascular Disease, Department of Internal Medicine and Specialties, University of Genova, Genova, Italy
| | - Hans-Erik Botker
- Department of Cardiology, Institute for Clinical Medicine, Aarhus University, Aarhus N, Denmark
| | - Sean M Davidson
- The Hatter Cardiovascular Institute, University College London, London, United Kingdom
| | - James Downey
- Department of Physiology, University of South Alabama, Mobile, AL, USA
| | - Philip Eaton
- William Harvey Research Institute, Queen Mary University of London, Heart Centre, Charterhouse Square, London, United Kingdom
| | - Peter Ferdinandy
- Department of Pharmacology and Pharmacotherapy, Semmelweis University, Budapest, Hungary; Pharmahungary Group, Szeged, Hungary
| | - Bernard J Gersh
- Department of Cardiovascular Medicine, Mayo Clinic College of Medicine and Science, Rochester, MN, USA
| | - Mauro Giacca
- School of Cardiovascular and Metabolic Medicine & Sciences, King's College, London, United Kingdom
| | - Derek J Hausenloy
- The Hatter Cardiovascular Institute, University College London, London, United Kingdom; Cardiovascular & Metabolic Disorders Program, Duke-National University of Singapore Medical School, National Heart Research Institute Singapore, National Heart Centre, Yong Loo Lin School of Medicine, National University Singapore, Singapore
| | - Borja Ibanez
- Centro Nacional de Investigaciones Cardiovasculares (CNIC), IIS-Fundación Jiménez Díaz University Hospital, and CIBERCV, Madrid, Spain
| | - Thomas Krieg
- Department of Medicine, University of Cambridge, Cambridge, United Kingdom
| | - Christoph Maack
- Department of Translational Research, Comprehensive Heart Failure Center, University Clinic Würzburg, Würzburg, Germany
| | - Rainer Schulz
- Institute for Physiology, Justus-Liebig -Universität, Giessen, Germany
| | - Frank Sellke
- Division of Cardiothoracic Surgery, Alpert Medical School of Brown University and Rhode Island Hospital, Providence, RI, USA
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, London, United Kingdom
| | - Holger Thiele
- Heart Center Leipzig at University of Leipzig and Leipzig Heart Science, Leipzig, Germany
| | - Derek M Yellon
- The Hatter Cardiovascular Institute, University College London, London, United Kingdom
| | - Fabio Di Lisa
- Dipartimento di Scienze Biomediche, Università degli studi di Padova, Padova, Italy.
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8
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Sammeta SS, Banarase TA, Rahangdale SR, Wankhede NL, Aglawe MM, Taksande BG, Mangrulkar SV, Upaganlawar AB, Koppula S, Kopalli SR, Umekar MJ, Kale MB. Molecular understanding of ER-MT communication dysfunction during neurodegeneration. Mitochondrion 2023; 72:59-71. [PMID: 37495165 DOI: 10.1016/j.mito.2023.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Revised: 07/13/2023] [Accepted: 07/23/2023] [Indexed: 07/28/2023]
Abstract
Biological researchers are seeing organelles in a new light. These cellular entities have been believed to be singular and distinctive structures that performed specialized purposes for a very long time. But in recentpast years, scientists have learned that organelles become dynamic and make physical contact. Additionally, Biological processes are regulated by organelles interactions and its alteration play an important role in cell malfunctioning and several pathologies, including neurodegenerative diseases. Mitochondrial-ER contact sites (MERCS) have received considerable attention in the domain of cell homeostasis and dysfunction, specifically in the area of neurodegeneration. This is largely due to the significant role of this subcellular compartment in a diverse array of vital cellular functions, including Ca2+ homeostasis, transport, bioenergetics and turnover, mitochondrial dynamics, apoptotic signaling, ER stress, and inflammation. A significant number of disease-associated proteins were found to physically interact with the ER-Mitochondria (ER-MT) interface, causing structural and/or functional alterations in this compartment. In this review, we summarize current knowledge about the structure and functions of the ER-MT contact sites, as well as the possible repercussions of their alteration in notable neurodegenerative disorders such as Alzheimer's disease, Parkinson's disease, amyotrophic lateral sclerosis, and fronto-temporal dementia. The constraints and complexities in defining the nature and origin of the highlighted defects in ER-MT communication, as well as their concise contribution to the neurodegenerative process, are illustrated in particular. The possibility of using MERCS as a potential drug target to prevent neuronal damage and ultimately neurodegeneration is the topic of our final discussion.
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Affiliation(s)
- Shivkumar S Sammeta
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Trupti A Banarase
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Sandip R Rahangdale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Nitu L Wankhede
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Manish M Aglawe
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Brijesh G Taksande
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Shubhada V Mangrulkar
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Aman B Upaganlawar
- SNJB's Shriman Sureshdada Jain College of Pharmacy, Neminagar, Chandwad, Nashik, Maharashtra, India
| | - Sushruta Koppula
- College of Biomedical and Health Sciences, Konkuk University, Chungju-Si, Chungcheongbuk Do 27478, Republic of Korea
| | - Spandana Rajendra Kopalli
- Department of Bioscience and Biotechnology, Sejong University, Gwangjin-gu, Seoul 05006, Republic of Korea
| | - Milind J Umekar
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India
| | - Mayur B Kale
- Smt. Kishoritai Bhoyar College of Pharmacy, Kamptee, Nagpur, Maharashtra 441002, India.
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9
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Bai X, Zhang Z, Li X, Yang Y, Ding S. FUNDC1: An Emerging Mitochondrial and MAMs Protein for Mitochondrial Quality Control in Heart Diseases. Int J Mol Sci 2023; 24:ijms24119151. [PMID: 37298100 DOI: 10.3390/ijms24119151] [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: 04/12/2023] [Revised: 05/19/2023] [Accepted: 05/21/2023] [Indexed: 06/12/2023] Open
Abstract
Heart diseases (HDs) are the leading cause of mortality worldwide, with mitochondrial dysfunction being a significant factor in their development. The recently discovered mitophagy receptor, FUNDC1, plays a critical role in regulating the homeostasis of the Mitochondrial Quality Control (MQC) system and contributing to HDs. The phosphorylation of specific regions of FUNDC1 and varying levels of its expression have been shown to have diverse effects on cardiac injury. This review presents a comprehensive consolidation and summary of the latest evidence regarding the role of FUNDC1 in the MQC system. The review elucidates the association of FUNDC1 with prevalent HDs, such as metabolic cardiomyopathy (MCM), cardiac remodeling/heart failure, and myocardial ischemia-reperfusion (IR) injury. The results indicate that the expression of FUNDC1 is elevated in MCM but reduced in instances of cardiac remodeling, heart failure, and myocardial IR injury, with divergent impacts on mitochondrial function among distinct HDs. Exercise has been identified as a powerful preventive and therapeutic approach for managing HDs. Additionally, it has been suggested that exercise-induced enhancement of cardiac function may be attributed to the AMPK/FUNDC1 pathway.
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Affiliation(s)
- Xizhe Bai
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Zhe Zhang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Xi Li
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Yangjun Yang
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
| | - Shuzhe Ding
- Key Laboratory of Adolescent Health Assessment and Exercise Intervention, Ministry of Education, East China Normal University, Shanghai 200241, China
- College of Physical Education and Health, East China Normal University, Shanghai 200241, China
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10
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Ulaganathan T, Perales S, Mani S, Baskhairoun BA, Rajasingh J. Pathological implications of cellular stress in cardiovascular diseases. Int J Biochem Cell Biol 2023; 158:106397. [PMID: 36931385 PMCID: PMC10124590 DOI: 10.1016/j.biocel.2023.106397] [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: 09/26/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/17/2023]
Abstract
Cellular stress has been a key factor in the development of cardiovascular diseases. Major types of cellular stress such as mitochondrial stress, endoplasmic reticulum stress, hypoxia, and replicative stress have been implicated in clinical complications of cardiac patients. The heart is the central regulator of the body by supplying oxygenated blood throughout the system. Impairment of cellular function could lead to heart failure, myocardial infarction, ischemia, and even stroke. Understanding the effect of these distinct types of cellular stress on cardiac function is crucial for the scientific community to understand and develop novel therapeutic approaches. This review will comprehensively explain the different mechanisms of cellular stress and the most recent findings related to stress-induced cardiac dysfunction.
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Affiliation(s)
- Thennavan Ulaganathan
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Biotechnology, SRM Institute of Science and Technology, kattankulathur, Tamilnadu, 603203, India
| | - Selene Perales
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Saiprahalad Mani
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Biotechnology, SRM Institute of Science and Technology, kattankulathur, Tamilnadu, 603203, India
| | - Boula A Baskhairoun
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Johnson Rajasingh
- Department of Bioscience Research, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Medicine-Cardiology, University of Tennessee Health Science Center, Memphis, TN, USA; Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, USA.
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11
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Jiang RQ, Li QQ, Sheng R. Mitochondria associated ER membrane and cerebral ischemia: molecular mechanisms and therapeutic strategies. Pharmacol Res 2023; 191:106761. [PMID: 37028777 DOI: 10.1016/j.phrs.2023.106761] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 04/04/2023] [Indexed: 04/09/2023]
Abstract
Endoplasmic reticulum (ER) and mitochondria are two important organelles that are highly dynamic in mammalian cells. The physical connection between them is mitochondria associated ER membranes (MAM). In recent years, studies on endoplasmic reticulum and mitochondria have shifted from independent division to association and comparison, especially MAM has gradually become a research hotspot. MAM connects the two organelles, not only to maintain their independent structure and function, but also to promote metabolism and signal transduction between them. This paper reviews the morphological structure and protein localization of MAM, and briefly analyzes the functions of MAM in regulating Ca2+ transport, lipid synthesis, mitochondrial fusion and fission, endoplasmic reticulum stress and oxidative stress, autophagy and inflammation. Since ER stress and mitochondrial dysfunction are important pathological events in neurological diseases including ischemic stroke, MAM is likely to play an important role in cerebral ischemia by regulating the signaling of the two organelles and the crosstalk of the two pathological events.
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Affiliation(s)
- Rui-Qi Jiang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Qi-Qi Li
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key laboratory of Neuropsychiatric Diseases, College of Pharmaceutical Sciences of Soochow University, Suzhou, China.
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12
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Peng C, Li X, Ao F, Li T, Guo J, Liu J, Zhang X, Gu J, Mao J, Zhou B. Mitochondrial ROS driven by NOX4 upregulation promotes hepatocellular carcinoma cell survival after incomplete radiofrequency ablation by inducing of mitophagy via Nrf2/PINK1. J Transl Med 2023; 21:218. [PMID: 36964576 PMCID: PMC10039571 DOI: 10.1186/s12967-023-04067-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Accepted: 03/17/2023] [Indexed: 03/26/2023] Open
Abstract
BACKGROUND The recurrence of hepatocellular carcinoma (HCC) after radiofrequency ablation (RFA) remains a major clinical problem. Cells that survive the sublethal heat stress that is induced by incomplete RFA are the main source of HCC relapse. Heat stress has long been reported to increase intracellular reactive oxygen species (ROS) generation. Although ROS can induce apoptosis, a pro-survival effect of ROS has also been demonstrated. However, the role of ROS in HCC cells exposed to sublethal heat stress remains unclear. METHODS HepG2 and HuH7 cells were used for this experiment. Insufficient RFA was performed in cells and in a xenograft model. ROS and antioxidant levels were measured. Apoptosis was analyed by Annexin-V/PI staining and flow cytometry. Protein expression was measured using western blotting. Colocalization of lysosomes and mitochondria was analyzed to assess mitophagy. Corresponding activators or inhibitors were applied to verify the function of specific objectives. RESULTS Here,we showed that sublethal heat stress induced a ROS burst, which caused acute oxidative stress. This ROS burst was generated by mitochondria, and it was initiated by upregulated NOX4 expression in the mitochondria. N-acetylcysteine (NAC) decreased HCC cell survival under sublethal heat stress conditions in vivo and in vitro. NOX4 triggers the production of mitochondrial ROS (mtROS), and NOX4 inhibitors or siNOX4 also decreased HCC cell survival under sublethal heat stress conditions in vitro. Increased mtROS trigger PINK1-dependent mitophagy to eliminate the mitochondria that are damaged by sublethal heat stress and to protect cells from apoptosis. Nrf2 expression was elevated in response to this ROS burst and mediated the ROS burst-induced increase in PINK1 expression after sublethal heat stress. CONCLUSION These data confirmed that the ROS burst that occurs after iRFA exerted a pro-survival effect. NOX4 increased the generation of ROS by mitochondria. This short-term ROS burst induced PINK1-dependent mitophagy to eliminate damaged mitochondria by increasing Nrf2 expression.
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Affiliation(s)
- Chao Peng
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Xi Li
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Feng Ao
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Ting Li
- Department of Anesthesiology, Gansu Provincial People's Hospital, Lanzhou, 730000, Gansu, China
| | - Jingpei Guo
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Junfeng Liu
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Xiaoting Zhang
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China
| | - Jinyan Gu
- Library Department, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China.
| | - Junjie Mao
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China.
| | - Bin Zhou
- Department of Interventional Medicine, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China.
- Guangdong Provincial Key Laboratory of Biomedical Imaging and Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital of Sun Yat-sen University, Zhuhai, 519000, Guangdong, China.
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13
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Bassot A, Chen J, Takahashi-Yamashiro K, Yap MC, Gibhardt CS, Le GNT, Hario S, Nasu Y, Moore J, Gutiérrez T, Mina L, Mast H, Moses A, Bhat R, Ballanyi K, Lemieux H, Sitia R, Zito E, Bogeski I, Campbell RE, Simmen T. The endoplasmic reticulum kinase PERK interacts with the oxidoreductase ERO1 to metabolically adapt mitochondria. Cell Rep 2023; 42:111899. [PMID: 36586409 DOI: 10.1016/j.celrep.2022.111899] [Citation(s) in RCA: 21] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 10/04/2022] [Accepted: 12/08/2022] [Indexed: 12/31/2022] Open
Abstract
Endoplasmic reticulum (ER) homeostasis requires molecular regulators that tailor mitochondrial bioenergetics to the needs of protein folding. For instance, calnexin maintains mitochondria metabolism and mitochondria-ER contacts (MERCs) through reactive oxygen species (ROS) from NADPH oxidase 4 (NOX4). However, induction of ER stress requires a quick molecular rewiring of mitochondria to adapt to new energy needs. This machinery is not characterized. We now show that the oxidoreductase ERO1⍺ covalently interacts with protein kinase RNA-like ER kinase (PERK) upon treatment with tunicamycin. The PERK-ERO1⍺ interaction requires the C-terminal active site of ERO1⍺ and cysteine 216 of PERK. Moreover, we show that the PERK-ERO1⍺ complex promotes oxidization of MERC proteins and controls mitochondrial dynamics. Using proteinaceous probes, we determined that these functions improve ER-mitochondria Ca2+ flux to maintain bioenergetics in both organelles, while limiting oxidative stress. Therefore, the PERK-ERO1⍺ complex is a key molecular machinery that allows quick metabolic adaptation to ER stress.
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Affiliation(s)
- Arthur Bassot
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada
| | - Junsheng Chen
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada
| | | | - Megan C Yap
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada
| | - Christine Silvia Gibhardt
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Giang N T Le
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Saaya Hario
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yusuke Nasu
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Jack Moore
- Alberta Proteomics and Mass Spectrometry Facility, University of Alberta, 4096 Katz Research Building, Edmonton AB T6G2E1, Canada
| | - Tomas Gutiérrez
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada
| | - Lucas Mina
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada
| | - Heather Mast
- Faculty Saint-Jean, Department of Medicine, Faculty of Medicine and Dentistry, Edmonton, AB T6G2H7, Canada
| | - Audric Moses
- Department of Pediatrics, Edmonton, AB T6G2H7, Canada
| | - Rakesh Bhat
- Precision Biolaboratories, St. Albert, AB T8N 5A7, Canada
| | - Klaus Ballanyi
- Department of Physiology, University of Alberta, Edmonton, AB T6G2H7, Canada
| | - Hélène Lemieux
- Faculty Saint-Jean, Department of Medicine, Faculty of Medicine and Dentistry, Edmonton, AB T6G2H7, Canada
| | - Roberto Sitia
- Division of Genetics and Cell Biology, Università Vita-Salute IRCCS Ospedale San Raffaele, 20132 Milano, Italy
| | - Ester Zito
- Istituto di Ricerche Farmacologiche Mario Negri, 20156 Milano, Italy; Department of Biomolecular Sciences, University of Urbino Carlo Bo, 61029 Urbino PU, Italy
| | - Ivan Bogeski
- Molecular Physiology, Institute of Cardiovascular Physiology, University Medical Center, Georg-August-University, Göttingen, Germany
| | - Robert E Campbell
- Department of Chemistry, University of Alberta, Edmonton, AB T6G 2G2, Canada; Department of Chemistry, Graduate School of Science, The University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Thomas Simmen
- Department of Cell Biology, Faculty of Medicine and Dentistry, Edmonton, AB T6G 2G2, Canada.
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14
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Nabeebaccus AA, Reumiller CM, Shen J, Zoccarato A, Santos CXC, Shah AM. The regulation of cardiac intermediary metabolism by NADPH oxidases. Cardiovasc Res 2023; 118:3305-3319. [PMID: 35325070 PMCID: PMC9847558 DOI: 10.1093/cvr/cvac030] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 12/24/2021] [Accepted: 01/18/2022] [Indexed: 01/25/2023] Open
Abstract
NADPH oxidases (NOXs), enzymes whose primary function is to generate reactive oxygen species, are important regulators of the heart's physiological function and response to pathological insults. The role of NOX-driven redox signalling in pathophysiological myocardial remodelling, including processes such as interstitial fibrosis, contractile dysfunction, cellular hypertrophy, and cell survival, is well recognized. While the NOX2 isoform promotes many detrimental effects, the NOX4 isoform has attracted considerable attention as a driver of adaptive stress responses both during pathology and under physiological states such as exercise. Recent studies have begun to define some of the NOX4-modulated mechanisms that may underlie these adaptive responses. In particular, novel functions of NOX4 in driving cellular metabolic changes have emerged. Alterations in cellular metabolism are a recognized hallmark of the heart's response to physiological and pathological stresses. In this review, we highlight the emerging roles of NOX enzymes as important modulators of cellular intermediary metabolism in the heart, linking stress responses not only to myocardial energetics but also other functions. The novel interplay of NOX-modulated redox signalling pathways and intermediary metabolism in the heart is unravelling a new aspect of the fascinating biology of these enzymes which will inform a better understanding of how they drive adaptive responses. We also discuss the implications of these new findings for therapeutic approaches that target metabolism in cardiac disease.
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Affiliation(s)
- Adam A Nabeebaccus
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Christina M Reumiller
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Jie Shen
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Anna Zoccarato
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Celio X C Santos
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
| | - Ajay M Shah
- School of Cardiovascular Medicine and Sciences, King’s College London British Heart Foundation Centre of Excellence, James Black Centre, 125 Coldharbour Lane, London SE5 9NU, UK
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15
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Demydenko K, Ekhteraei-Tousi S, Roderick HL. Inositol 1,4,5-trisphosphate receptors in cardiomyocyte physiology and disease. Philos Trans R Soc Lond B Biol Sci 2022; 377:20210319. [PMID: 36189803 PMCID: PMC9527928 DOI: 10.1098/rstb.2021.0319] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The contraction of cardiac muscle underlying the pumping action of the heart is mediated by the process of excitation-contraction coupling (ECC). While triggered by Ca2+ entry across the sarcolemma during the action potential, it is the release of Ca2+ from the sarcoplasmic reticulum (SR) intracellular Ca2+ store via ryanodine receptors (RyRs) that plays the major role in induction of contraction. Ca2+ also acts as a key intracellular messenger regulating transcription underlying hypertrophic growth. Although Ca2+ release via RyRs is by far the greatest contributor to the generation of Ca2+ transients in the cardiomyocyte, Ca2+ is also released from the SR via inositol 1,4,5-trisphosphate (InsP3) receptors (InsP3Rs). This InsP3-induced Ca2+ release modifies Ca2+ transients during ECC, participates in directing Ca2+ to the mitochondria, and stimulates the transcription of genes underlying hypertrophic growth. Central to these specific actions of InsP3Rs is their localization to responsible signalling microdomains, the dyad, the SR-mitochondrial interface and the nucleus. In this review, the various roles of InsP3R in cardiac (patho)physiology and the mechanisms by which InsP3 signalling selectively influences the different cardiomyocyte cell processes in which it is involved will be presented. This article is part of the theme issue ‘The cardiomyocyte: new revelations on the interplay between architecture and function in growth, health, and disease’.
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Affiliation(s)
- Kateryna Demydenko
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - Samaneh Ekhteraei-Tousi
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
| | - H Llewelyn Roderick
- Laboratory of Experimental Cardiology, Department of Cardiovascular Sciences, KU Leuven, Leuven, Belgium
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16
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Teuber JP, Essandoh K, Hummel SL, Madamanchi NR, Brody MJ. NADPH Oxidases in Diastolic Dysfunction and Heart Failure with Preserved Ejection Fraction. Antioxidants (Basel) 2022; 11:1822. [PMID: 36139898 PMCID: PMC9495396 DOI: 10.3390/antiox11091822] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/16/2022] Open
Abstract
Nicotinamide adenine dinucleotide phosphate (NADPH) oxidases regulate production of reactive oxygen species (ROS) that cause oxidative damage to cellular components but also regulate redox signaling in many cell types with essential functions in the cardiovascular system. Research over the past couple of decades has uncovered mechanisms by which NADPH oxidase (NOX) enzymes regulate oxidative stress and compartmentalize intracellular signaling in endothelial cells, smooth muscle cells, macrophages, cardiomyocytes, fibroblasts, and other cell types. NOX2 and NOX4, for example, regulate distinct redox signaling mechanisms in cardiac myocytes pertinent to the onset and progression of cardiac hypertrophy and heart failure. Heart failure with preserved ejection fraction (HFpEF), which accounts for at least half of all heart failure cases and has few effective treatments to date, is classically associated with ventricular diastolic dysfunction, i.e., defects in ventricular relaxation and/or filling. However, HFpEF afflicts multiple organ systems and is associated with systemic pathologies including inflammation, oxidative stress, arterial stiffening, cardiac fibrosis, and renal, adipose tissue, and skeletal muscle dysfunction. Basic science studies and clinical data suggest a role for systemic and myocardial oxidative stress in HFpEF, and evidence from animal models demonstrates the critical functions of NOX enzymes in diastolic function and several HFpEF-associated comorbidities. Here, we discuss the roles of NOX enzymes in cardiovascular cells that are pertinent to the development and progression of diastolic dysfunction and HFpEF and outline potential clinical implications.
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Affiliation(s)
- James P. Teuber
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Kobina Essandoh
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Scott L. Hummel
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
- Ann Arbor Veterans Affairs Health System, Ann Arbor, MI 48105, USA
| | | | - Matthew J. Brody
- Department of Pharmacology, University of Michigan, Ann Arbor, MI 48109, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, MI 48109, USA
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17
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Cagnin S, Brugnaro M, Millino C, Pacchioni B, Troiano C, Di Sante M, Kaludercic N. Monoamine Oxidase-Dependent Pro-Survival Signaling in Diabetic Hearts Is Mediated by miRNAs. Cells 2022; 11:2697. [PMID: 36078109 PMCID: PMC9454570 DOI: 10.3390/cells11172697] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 10/05/2023] Open
Abstract
Diabetes leads to cardiomyopathy and heart failure, the leading cause of death for diabetic patients. Monoamine oxidase (MAO) inhibition in diabetic cardiomyopathy prevents oxidative stress, mitochondrial and endoplasmic reticulum stress and the development of diastolic dysfunction. However, it is unclear whether, in addition to the direct effects exerted on the mitochondria, MAO activity is able to post-transcriptionally regulate cardiomyocyte function and survival in diabetes. To this aim, we performed gene and miRNA expression profiling in cardiac tissue from streptozotocin-treated mice (model of type 1 diabetes (T1D)), administered with either vehicle or MAOs inhibitor pargyline for 12 weeks. We found that inhibition of MAO activity in T1D hearts leads to profound transcriptomic changes, affecting autophagy and pro-survival pathways activation. MAO activity in T1D hearts increased miR-133a-3p, -193a-3p and -27a-3p expression. These miRNAs target insulin-like growth factor receptor 1 (Igf1r), growth factor receptor bound protein 10 and inositol polyphosphate 4 phosphatase type 1A, respectively, all components of the IGF1R/PI3K/AKT signaling pathway. Indeed, AKT activation was significantly downregulated in T1D hearts, whereas MAO inhibition restored the activation of this pro-survival pathway. The present study provides an important link between MAO activity, transcriptomic changes and activation of pro-survival signaling and autophagy in diabetic cardiomyopathy.
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Affiliation(s)
- Stefano Cagnin
- Department of Biology, University of Padova, 35131 Padova, Italy
- CIR-Myo Myology Center, University of Padova, 35131 Padova, Italy
| | - Marco Brugnaro
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Caterina Millino
- Department of Biology, University of Padova, 35131 Padova, Italy
| | | | - Carmen Troiano
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Moises Di Sante
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
| | - Nina Kaludercic
- Department of Biomedical Sciences, University of Padova, 35131 Padova, Italy
- Neuroscience Institute, National Research Council of Italy (CNR), 35131 Padova, Italy
- Fondazione Istituto di Ricerca Pediatrica Città della Speranza (IRP), 35127 Padova, Italy
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18
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Zhang G, Dong D, Wan X, Zhang Y. Cardiomyocyte death in sepsis: Mechanisms and regulation (Review). Mol Med Rep 2022; 26:257. [PMID: 35703348 PMCID: PMC9218731 DOI: 10.3892/mmr.2022.12773] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Accepted: 05/20/2022] [Indexed: 11/06/2022] Open
Abstract
Sepsis‑induced cardiac dysfunction is one of the most common types of organ dysfunction in sepsis; its pathogenesis is highly complex and not yet fully understood. Cardiomyocytes serve a key role in the pathophysiology of cardiac function; due to the limited ability of cardiomyocytes to regenerate, their loss contributes to decreased cardiac function. The activation of inflammatory signalling pathways affects cardiomyocyte function and modes of cardiomyocyte death in sepsis. Prevention of cardiomyocyte death is an important therapeutic strategy for sepsis‑induced cardiac dysfunction. Thus, understanding the signalling pathways that activate cardiomyocyte death and cross‑regulation between death modes are key to finding therapeutic targets. The present review focused on advances in understanding of sepsis‑induced cardiomyocyte death pathways, including apoptosis, necroptosis, mitochondria‑mediated necrosis, pyroptosis, ferroptosis and autophagy. The present review summarizes the effect of inflammatory activation on cardiomyocyte death mechanisms, the diversity of regulatory mechanisms and cross‑regulation between death modes and the effect on cardiac function in sepsis to provide a theoretical basis for treatment of sepsis‑induced cardiac dysfunction.
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Affiliation(s)
- Geping Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Dan Dong
- Department of Critical Care Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Xianyao Wan
- Department of Critical Care Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
| | - Yongli Zhang
- Department of Critical Care Medicine, The First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
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19
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Thapa J, Yoshiiri G, Ito K, Okubo T, Nakamura S, Furuta Y, Higashi H, Yamaguchi H. Chlamydia trachomatis Requires Functional Host-Cell Mitochondria and NADPH Oxidase 4/p38MAPK Signaling for Growth in Normoxia. Front Cell Infect Microbiol 2022; 12:902492. [PMID: 35719337 PMCID: PMC9199516 DOI: 10.3389/fcimb.2022.902492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
Chlamydia trachomatis (Ct) is an intracellular energy-parasitic bacterium that requires ATP derived from infected cells for its growth. Meanwhile, depending on the O2 concentration, the host cells change their mode of ATP production between oxidative phosphorylation in mitochondria (Mt) and glycolysis; this change depends on signaling via reactive oxygen species (ROS) produced by NADPH oxidases (NOXs) as well as Mt. It has been proposed that Ct correspondingly switches its source of acquisition of ATP between host-cell Mt and glycolysis, but this has not been verified experimentally. In the present study, we assessed the roles of host-cell NOXs and Mt in the intracellular growth of CtL2 (L2 434/Bu) under normoxia (21% O2) and hypoxia (2% O2) by using several inhibitors of NOXs (or the downstream molecule) and Mt-dysfunctional (Mtd) HEp-2 cells. Under normoxia, diphenyleneiodonium, an inhibitor of ROS diffusion, abolished the growth of CtL2 and other Chlamydiae (CtD and C. pneumoniae). Both ML171 (a pan-NOX inhibitor) and GLX351322 (a NOX4-specific inhibitor) impaired the growth of CtL2 under normoxia, but not hypoxia. NOX4-knockdown cells diminished the bacterial growth. SB203580, an inhibitor of the NOX4-downstream molecule p38MAPK, also inhibited the growth of CtL2 under normoxia but not hypoxia. Furthermore, CtL2 failed to grow in Mtd cells under normoxia, but no effect was observed under hypoxia. We conclude that under normoxia, Ct requires functional Mt in its host cells as an ATP source, and that this process requires NOX4/p38MAPK signaling in the host cells. In contrast to hypoxia, crosstalk between NOX4 and Mt via p38MAPK may be crucial for the growth of Ct under normoxia.
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Affiliation(s)
- Jeewan Thapa
- Division of Bioresources, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Gen Yoshiiri
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Koki Ito
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Torahiko Okubo
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
| | - Shinji Nakamura
- Laboratory of Morphology and Image Analysis, Research Support Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yoshikazu Furuta
- Division of Infection and Immunity, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Hideaki Higashi
- Division of Infection and Immunity, International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Hiroyuki Yamaguchi
- Department of Medical Laboratory Science, Faculty of Health Sciences, Hokkaido University, Sapporo, Japan
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20
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Yin and Yang of NADPH Oxidases in Myocardial Ischemia-Reperfusion. Antioxidants (Basel) 2022; 11:antiox11061069. [PMID: 35739967 PMCID: PMC9220061 DOI: 10.3390/antiox11061069] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/22/2022] [Accepted: 05/26/2022] [Indexed: 11/16/2022] Open
Abstract
Oxidative stress is critically involved in the pathophysiology of myocardial ischemic-reperfusion (I/R) injury. NADPH oxidase (Nox) 2 and 4, major sources of reactive oxygen species (ROS) in cardiomyocytes, are upregulated in response to I/R. Suppression of Nox-derived ROS prevents mitochondrial dysfunction and endoplasmic reticulum (ER) stress, leading to attenuation of myocardial I/R injury. However, minimal levels of ROS by either Nox2 or Nox4 are required for energy metabolism during I/R in the heart, preserving hypoxia-inducible factor-1α (HIF-1α) and peroxisome proliferator-activated receptor-α (PPARα) levels. Furthermore, extreme suppression of Nox activity induces reductive stress, leading to paradoxical increases in ROS levels. Nox4 has distinct roles in organelles such as mitochondria, ER, and ER-mitochondria contact sites (MAMs). Mitochondrial Nox4 exerts a detrimental effect, causing ROS-induced mitochondrial dysfunction during I/R, whereas Nox4 in the ER and MAMs is potentially protective against I/R injury through regulation of autophagy and MAM function, respectively. Although Nox isoforms are potential therapeutic targets for I/R injury, to maximize the effect of intervention, it is likely important to optimize the ROS level and selectively inhibit Nox4 in mitochondria. Here, we discuss the ‘Yin and Yang’ functions of Nox isoforms during myocardial I/R.
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21
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Pereira AC, De Pascale J, Resende R, Cardoso S, Ferreira I, Neves BM, Carrascal MA, Zuzarte M, Madeira N, Morais S, Macedo A, do Carmo A, Moreira PI, Cruz MT, Pereira CF. ER-mitochondria communication is involved in NLRP3 inflammasome activation under stress conditions in the innate immune system. Cell Mol Life Sci 2022; 79:213. [PMID: 35344105 PMCID: PMC11072401 DOI: 10.1007/s00018-022-04211-7] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 02/14/2022] [Accepted: 02/16/2022] [Indexed: 12/11/2022]
Abstract
Endoplasmic reticulum (ER) stress and mitochondrial dysfunction, which are key events in the initiation and/or progression of several diseases, are correlated with alterations at ER-mitochondria contact sites, the so-called "Mitochondria-Associated Membranes" (MAMs). These intracellular structures are also implicated in NLRP3 inflammasome activation which is an important driver of sterile inflammation, however, the underlying molecular basis remains unclear. This work aimed to investigate the role of ER-mitochondria communication during ER stress-induced NLRP3 inflammasome activation in both peripheral and central innate immune systems, by using THP-1 human monocytes and BV2 microglia cells, respectively, as in vitro models. Markers of ER stress, mitochondrial dynamics and mass, as well as NLRP3 inflammasome activation were evaluated by Western Blot, IL-1β secretion was measured by ELISA, and ER-mitochondria contacts were quantified by transmission electron microscopy. Mitochondrial Ca2+ uptake and polarization were analyzed with fluorescent probes, and measurement of aconitase and SOD2 activities monitored mitochondrial ROS accumulation. ER stress was demonstrated to activate the NLRP3 inflammasome in both peripheral and central immune cells. Studies in monocytes indicate that ER stress-induced NLRP3 inflammasome activation occurs by a Ca2+-dependent and ROS-independent mechanism, which is coupled with upregulation of MAMs-resident chaperones, closer ER-mitochondria contacts, as well as mitochondrial depolarization and impaired dynamics. Moreover, enhanced ER stress-induced NLRP3 inflammasome activation in the immune system was found associated with pathological conditions since it was observed in monocytes derived from bipolar disorder (BD) patients, supporting a pro-inflammatory status in BD. In conclusion, by demonstrating that ER-mitochondria communication plays a key role in the response of the innate immune cells to ER stress, this work contributes to elucidate the molecular mechanisms underlying NLRP3 inflammasome activation under stress conditions, and to disclose novel potential therapeutic targets for diseases associated with sterile inflammation.
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Affiliation(s)
- Ana Catarina Pereira
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
| | - Jessica De Pascale
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
| | - Rosa Resende
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
| | - Susana Cardoso
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
| | - Isabel Ferreira
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University Coimbra, Coimbra, Portugal
| | - Bruno Miguel Neves
- iBiMED-Department of Medical Sciences and Institute for Biomedicine, University Aveiro, Aveiro, Portugal
| | - Mylène A Carrascal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Tecnimede Group, Sintra, Portugal
| | - Mónica Zuzarte
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- iCBR-Institute for Clinical and Biomedical Research, University Coimbra, Coimbra, Portugal
| | - Nuno Madeira
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- CIBIT-Coimbra Institute for Biomedical Imaging and Translational Research, University Coimbra, Coimbra, Portugal
- Department of Psychiatry, CHUC-UC-Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Sofia Morais
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Department of Psychiatry, CHUC-UC-Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - António Macedo
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Department of Psychiatry, CHUC-UC-Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Anália do Carmo
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Department of Clinical Pathology, CHUC-UC-Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Paula I Moreira
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- Faculty of Medicine, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
| | - Maria Teresa Cruz
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal
- Faculty of Pharmacy, University Coimbra, Coimbra, Portugal
| | - Cláudia F Pereira
- CNC-Center for Neuroscience and Cell Biology, CIBB-Center for Innovative Biomedicine and Biotechnology, University Coimbra, Coimbra, Portugal.
- Faculty of Medicine, University Coimbra, Coimbra, Portugal.
- CACC-Clinical Academic Center of Coimbra, Coimbra, Portugal.
- , Coimbra, Portugal.
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22
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Emanuelli G, Zoccarato A, Reumiller CM, Papadopoulos A, Chong M, Rebs S, Betteridge K, Beretta M, Streckfuss-Bömeke K, Shah AM. A roadmap for the characterization of energy metabolism in human cardiomyocytes derived from induced pluripotent stem cells. J Mol Cell Cardiol 2022; 164:136-147. [PMID: 34923199 DOI: 10.1016/j.yjmcc.2021.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 11/19/2021] [Accepted: 12/01/2021] [Indexed: 01/16/2023]
Abstract
Human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CM) are an increasingly employed model in cardiac research and drug discovery. As cellular metabolism plays an integral role in determining phenotype, the characterization of the metabolic profile of hiPSC-CM during maturation is crucial for their translational application. In this study we employ a combination of methods including extracellular flux, 13C-glucose enrichment and targeted metabolomics to characterize the metabolic profile of hiPSC-CM during their maturation in culture from 6 weeks, up to 12 weeks. Results show a progressive remodeling of pathways involved in energy metabolism and substrate utilization along with an increase in sarcomere regularity. The oxidative capacity of hiPSC-CM and particularly their ability to utilize fatty acids increased with time. In parallel, relative glucose oxidation was reduced while glutamine oxidation was maintained at similar levels. There was also evidence of increased coupling of glycolysis to mitochondrial respiration, and away from glycolytic branch pathways at later stages of maturation. The rate of glycolysis as assessed by lactate production was maintained at both stages but with significant alterations in proximal glycolytic enzymes such as hexokinase and phosphofructokinase. We observed a progressive maturation of mitochondrial oxidative capacity at comparable levels of mitochondrial content between these time-points with enhancement of mitochondrial network structure. These results show that the metabolic profile of hiPSC-CM is progressively restructured, recapitulating aspects of early post-natal heart development. This would be particularly important to consider when employing these cell model in studies where metabolism plays an important role.
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Affiliation(s)
- Giulia Emanuelli
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom; Clinic for Cardiology and Pneumonology, University Medical Center Göttingen, Germany and DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Germany
| | - Anna Zoccarato
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom.
| | - Christina M Reumiller
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
| | - Angelos Papadopoulos
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
| | - Mei Chong
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
| | - Sabine Rebs
- Clinic for Cardiology and Pneumonology, University Medical Center Göttingen, Germany and DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Germany
| | - Kai Betteridge
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
| | - Matteo Beretta
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom
| | - Katrin Streckfuss-Bömeke
- Clinic for Cardiology and Pneumonology, University Medical Center Göttingen, Germany and DZHK (German Centre for Cardiovascular Research), partner site Göttingen, Germany; Institute of Pharmacology and Toxicology, University of Würzburg, 97078 Würzburg, Germany
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine & Sciences, London, United Kingdom.
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23
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Grass M, McDougal AD, Blazeski A, Kamm RD, García-Cardeña G, Dewey CF. A computational model of cardiomyocyte metabolism predicts unique reperfusion protocols capable of reducing cell damage during ischemia/reperfusion. J Biol Chem 2022; 298:101693. [PMID: 35157851 PMCID: PMC9062261 DOI: 10.1016/j.jbc.2022.101693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 01/25/2022] [Accepted: 02/03/2022] [Indexed: 11/20/2022] Open
Abstract
If a coronary blood vessel is occluded and the neighboring cardiomyocytes deprived of oxygen, subsequent reperfusion of the ischemic tissue can lead to oxidative damage due to excessive generation of reactive oxygen species. Cardiomyocytes and their mitochondria are the main energy producers and consumers of the heart, and their metabolic changes during ischemia seem to be a key driver of reperfusion injury. Here, we hypothesized that tracking changes in cardiomyocyte metabolism, such as oxygen and ATP concentrations, would help in identifying points of metabolic failure during ischemia and reperfusion. To track some of these changes continuously from the onset of ischemia through reperfusion, we developed a system of differential equations representing the chemical reactions involved in the production and consumption of 67 molecular species. This model was validated and used to identify conditions present during periods of critical transition in ischemia and reperfusion that could lead to oxidative damage. These simulations identified a range of oxygen concentrations that lead to reverse mitochondrial electron transport at complex I of the respiratory chain and a spike in mitochondrial membrane potential, which are key suspects in the generation of reactive oxygen species at the onset of reperfusion. Our model predicts that a short initial reperfusion treatment with reduced oxygen content (5% of physiological levels) could reduce the cellular damage from both of these mechanisms. This model should serve as an open-source platform to test ideas for treatment of the ischemia reperfusion process by following the temporal evolution of molecular concentrations in the cardiomyocyte.
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Affiliation(s)
- Matthias Grass
- Department of Mechanical Engineering, ETH Zurich, Zurich, Switzerland; Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Program in Human Biology and Translational Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Anthony D McDougal
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Adriana Blazeski
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Program in Human Biology and Translational Medicine, Harvard Medical School, Boston, Massachusetts, USA; Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Roger D Kamm
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA; Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Guillermo García-Cardeña
- Department of Pathology, Brigham and Women's Hospital, Boston, Massachusetts, USA; Program in Human Biology and Translational Medicine, Harvard Medical School, Boston, Massachusetts, USA; Cardiovascular Disease Initiative, The Broad Institute of MIT and Harvard, Cambridge, Massachusetts, USA.
| | - C Forbes Dewey
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA; Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA.
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24
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Gomez‐Suaga P, Mórotz GM, Markovinovic A, Martín‐Guerrero SM, Preza E, Arias N, Mayl K, Aabdien A, Gesheva V, Nishimura A, Annibali A, Lee Y, Mitchell JC, Wray S, Shaw C, Noble W, Miller CCJ. Disruption of ER-mitochondria tethering and signalling in C9orf72-associated amyotrophic lateral sclerosis and frontotemporal dementia. Aging Cell 2022; 21:e13549. [PMID: 35026048 PMCID: PMC8844122 DOI: 10.1111/acel.13549] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 12/21/2021] [Accepted: 12/24/2021] [Indexed: 12/18/2022] Open
Abstract
Hexanucleotide repeat expansions in C9orf72 are the most common cause of familial amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). The mechanisms by which the expansions cause disease are not properly understood but a favoured route involves its translation into dipeptide repeat (DPR) polypeptides, some of which are neurotoxic. However, the precise targets for mutant C9orf72 and DPR toxicity are not fully clear, and damage to several neuronal functions has been described. Many of these functions are regulated by signalling between the endoplasmic reticulum (ER) and mitochondria. ER‐mitochondria signalling requires close physical contacts between the two organelles that are mediated by the VAPB‐PTPIP51 ‘tethering’ proteins. Here, we show that ER‐mitochondria signalling and the VAPB‐PTPIP51 tethers are disrupted in neurons derived from induced pluripotent stem (iPS) cells from patients carrying ALS/FTD pathogenic C9orf72 expansions and in affected neurons in mutant C9orf72 transgenic mice. In these mice, disruption of the VAPB‐PTPIP51 tethers occurs prior to disease onset suggesting that it contributes to the pathogenic process. We also show that neurotoxic DPRs disrupt the VAPB‐PTPIP51 interaction and ER‐mitochondria contacts and that this may involve activation of glycogen synthase kinases‐3β (GSK3β), a known negative regulator of VAPB‐PTPIP51 binding. Finally, we show that these DPRs disrupt delivery of Ca2+ from ER stores to mitochondria, which is a primary function of the VAPB‐PTPIP51 tethers. This delivery regulates a number of key neuronal functions that are damaged in ALS/FTD including bioenergetics, autophagy and synaptic function. Our findings reveal a new molecular target for mutant C9orf72‐mediated toxicity.
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Affiliation(s)
- Patricia Gomez‐Suaga
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Gábor M. Mórotz
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Andrea Markovinovic
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Sandra M. Martín‐Guerrero
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Elisavet Preza
- Department of Neurodegenerative Disease University College London Queen Square Institute of Neurology London UK
| | - Natalia Arias
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Keith Mayl
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Afra Aabdien
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Vesela Gesheva
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Agnes Nishimura
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Ambra Annibali
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Younbok Lee
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Jacqueline C. Mitchell
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Selina Wray
- Department of Neurodegenerative Disease University College London Queen Square Institute of Neurology London UK
| | - Christopher Shaw
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
- UK Dementia Research Institute at King's College Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Wendy Noble
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
| | - Christopher C. J. Miller
- Department of Basic and Clinical Neuroscience Institute of Psychiatry, Psychology and Neuroscience King’s College London London UK
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25
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Calcium and redox signals at mitochondrial interfaces: A nanoview perspective. Cell Calcium 2022; 103:102550. [DOI: 10.1016/j.ceca.2022.102550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 11/20/2022]
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26
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Adameova A, Horvath C, Abdul-Ghani S, Varga ZV, Suleiman MS, Dhalla NS. Interplay of Oxidative Stress and Necrosis-like Cell Death in Cardiac Ischemia/Reperfusion Injury: A Focus on Necroptosis. Biomedicines 2022; 10:biomedicines10010127. [PMID: 35052807 PMCID: PMC8773068 DOI: 10.3390/biomedicines10010127] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 12/31/2021] [Accepted: 01/05/2022] [Indexed: 02/06/2023] Open
Abstract
Extensive research work has been carried out to define the exact significance and contribution of regulated necrosis-like cell death program, such as necroptosis to cardiac ischemic injury. This cell damaging process plays a critical role in the pathomechanisms of myocardial infarction (MI) and post-infarction heart failure (HF). Accordingly, it has been documented that the modulation of key molecules of the canonical signaling pathway of necroptosis, involving receptor-interacting protein kinases (RIP1 and RIP3) as well as mixed lineage kinase domain-like pseudokinase (MLKL), elicit cardioprotective effects. This is evidenced by the reduction of the MI-induced infarct size, alleviation of myocardial dysfunction, and adverse cardiac remodeling. In addition to this molecular signaling of necroptosis, the non-canonical pathway, involving Ca2+/calmodulin-dependent protein kinase II (CaMKII)-mediated regulation of mitochondrial permeability transition pore (mPTP) opening, and phosphoglycerate mutase 5 (PGAM5)–dynamin-related protein 1 (Drp-1)-induced mitochondrial fission, has recently been linked to ischemic heart injury. Since MI and HF are characterized by an imbalance between reactive oxygen species production and degradation as well as the occurrence of necroptosis in the heart, it is likely that oxidative stress (OS) may be involved in the mechanisms of this cell death program for inducing cardiac damage. In this review, therefore, several observations from different studies are presented to support this paradigm linking cardiac OS, the canonical and non-canonical pathways of necroptosis, and ischemia-induced injury. It is concluded that a multiple therapeutic approach targeting some specific changes in OS and necroptosis may be beneficial in improving the treatment of ischemic heart disease.
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Affiliation(s)
- Adriana Adameova
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, 83232 Bratislava, Slovakia;
- Centre of Experimental Medicine, Institute for Heart Research, Slovak Academy of Sciences, 81438 Bratislava, Slovakia
- Correspondence:
| | - Csaba Horvath
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Comenius University in Bratislava, 83232 Bratislava, Slovakia;
| | - Safa Abdul-Ghani
- Department of Physiology, Faculty of Medicine, Al-Quds University, Abu Dis P.O. Box 89, Palestine;
| | - Zoltan V. Varga
- HCEMM-SU Cardiometabolic Immunology Research Group, Department of Pharmacology and Pharmacotherapy, Semmelweis University, 1089 Budapest, Hungary;
| | - M. Saadeh Suleiman
- Faculty of Health Sciences, Bristol Heart Institute, The Bristol Medical School, University of Bristol, Bristol BS8 1TH, UK;
| | - Naranjan S. Dhalla
- Institute of Cardiovascular Sciences, St. Boniface Hospital Albrechtsen Research Center, 351 Tache Avenue, Winnipeg, MB R2H 2A6, Canada;
- Department of Physiology and Pathophysiology, Max Rady College of Medicine, Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0J9, Canada
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27
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Liu J, Wang L, Ge L, Sun W, Song Z, Lu X, Jin C, Wu S, Yang J. Lanthanum decreased VAPB-PTPP51, BAP31-FIS1, and MFN2-MFN1 expression of mitochondria-associated membranes and induced abnormal autophagy in rat hippocampus. Food Chem Toxicol 2022; 161:112831. [DOI: 10.1016/j.fct.2022.112831] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 01/03/2022] [Accepted: 01/20/2022] [Indexed: 12/21/2022]
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28
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Takeuchi A, Matsuoka S. Physiological and Pathophysiological Roles of Mitochondrial Na +-Ca 2+ Exchanger, NCLX, in Hearts. Biomolecules 2021; 11:biom11121876. [PMID: 34944520 PMCID: PMC8699148 DOI: 10.3390/biom11121876] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/10/2021] [Accepted: 12/10/2021] [Indexed: 12/21/2022] Open
Abstract
It has been over 10 years since SLC24A6/SLC8B1, coding the Na+/Ca2+/Li+ exchanger (NCLX), was identified as the gene responsible for mitochondrial Na+-Ca2+ exchange, a major Ca2+ efflux system in cardiac mitochondria. This molecular identification enabled us to determine structure–function relationships, as well as physiological/pathophysiological contributions, and our understandings have dramatically increased. In this review, we provide an overview of the recent achievements in relation to NCLX, focusing especially on its heart-specific characteristics, biophysical properties, and spatial distribution in cardiomyocytes, as well as in cardiac mitochondria. In addition, we discuss the roles of NCLX in cardiac functions under physiological and pathophysiological conditions—the generation of rhythmicity, the energy metabolism, the production of reactive oxygen species, and the opening of mitochondrial permeability transition pores.
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Affiliation(s)
- Ayako Takeuchi
- Department of Integrative and Systems Physiology, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan;
- Life Science Innovation Center, University of Fukui, Fukui 910-1193, Japan
- Correspondence: ; Tel.: +81-776-61-8311
| | - Satoshi Matsuoka
- Department of Integrative and Systems Physiology, Faculty of Medical Sciences, University of Fukui, Fukui 910-1193, Japan;
- Life Science Innovation Center, University of Fukui, Fukui 910-1193, Japan
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29
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Elksnis A, Cen J, Wikström P, Carlsson PO, Welsh N. Pharmacological Inhibition of NOX4 Improves Mitochondrial Function and Survival in Human Beta-Cells. Biomedicines 2021; 9:biomedicines9121865. [PMID: 34944680 PMCID: PMC8698703 DOI: 10.3390/biomedicines9121865] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 10/31/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022] Open
Abstract
Previous studies have reported beneficial effects of NADPH oxidase 4 (NOX4) inhibition on beta-cell survival in vitro and in vivo. The mechanisms by which NOX4 inhibition protects insulin producing cells are, however, not known. The aim of the present study was to investigate the effects of a pharmacological NOX4 inhibitor (GLX7013114) on human islet and EndoC-βH1 cell mitochondrial function, and to correlate such effects with survival in islets of different size, activity, and glucose-stimulated insulin release responsiveness. We found that maximal oxygen consumption rates, but not the rates of acidification and proton leak, were increased in islets after acute NOX4 inhibition. In EndoC-βH1 cells, NOX4 inhibition increased the mitochondrial membrane potential, as estimated by JC-1 fluorescence; mitochondrial reactive oxygen species (ROS) production, as estimated by MitoSOX fluorescence; and the ATP/ADP ratio, as assessed by a bioluminescent assay. Moreover, the insulin release from EndoC-βH1 cells at a high glucose concentration increased with NOX4 inhibition. These findings were paralleled by NOX4 inhibition-induced protection against human islet cell death when challenged with high glucose and sodium palmitate. The NOX4 inhibitor protected equally well islets of different size, activity, and glucose responsiveness. We conclude that pharmacological alleviation of NOX4-induced inhibition of beta-cell mitochondria leads to increased, and not decreased, mitochondrial ROS, and this was associated with protection against cell death occurring in different types of heterogeneous islets. Thus, NOX4 inhibition or modulation may be a therapeutic strategy in type 2 diabetes that targets all types of islets.
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Affiliation(s)
- Andris Elksnis
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, SE-751 23 Uppsala, Sweden; (A.E.); (J.C.); (P.-O.C.)
| | - Jing Cen
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, SE-751 23 Uppsala, Sweden; (A.E.); (J.C.); (P.-O.C.)
| | - Per Wikström
- Glucox Biotech AB, Frälsegårdsvägen 8, SE-179 97 Färentuna, Sweden;
| | - Per-Ola Carlsson
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, SE-751 23 Uppsala, Sweden; (A.E.); (J.C.); (P.-O.C.)
- Department of Medical Sciences, Uppsala University, SE-751 85 Uppsala, Sweden
| | - Nils Welsh
- Science for Life Laboratory, Department of Medical Cell Biology, Uppsala University, SE-751 23 Uppsala, Sweden; (A.E.); (J.C.); (P.-O.C.)
- Correspondence: ; Tel.: +46-184-714-212
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30
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Yamashita R, Fujii S, Ushioda R, Nagata K. Ca 2+ imbalance caused by ERdj5 deletion affects mitochondrial fragmentation. Sci Rep 2021; 11:20772. [PMID: 34728782 PMCID: PMC8563984 DOI: 10.1038/s41598-021-99980-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 09/28/2021] [Indexed: 11/29/2022] Open
Abstract
The endoplasmic reticulum (ER) is the organelle responsible for the folding of secretory/membrane proteins and acts as a dynamic calcium ion (Ca2+) store involved in various cellular signalling pathways. Previously, we reported that the ER-resident disulfide reductase ERdj5 is involved in the ER-associated degradation (ERAD) of misfolded proteins in the ER and the activation of SERCA2b, a Ca2+ pump on the ER membrane. These results highlighted the importance of the regulation of redox activity in both Ca2+ and protein homeostasis in the ER. Here, we show that the deletion of ERdj5 causes an imbalance in intracellular Ca2+ homeostasis, the activation of Drp1, a cytosolic GTPase involved in mitochondrial fission, and finally the aberrant fragmentation of mitochondria, which affects cell viability as well as phenotype with features of cellular senescence. Thus, ERdj5-mediated regulation of intracellular Ca2+ is essential for the maintenance of mitochondrial homeostasis involved in cellular senescence.
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Affiliation(s)
- Riyuji Yamashita
- Laboratory of Molecular and Cellular Biology, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, 603-8555, Japan
| | - Shohei Fujii
- Laboratory of Molecular and Cellular Biology, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, 603-8555, Japan
| | - Ryo Ushioda
- Laboratory of Molecular and Cellular Biology, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, 603-8555, Japan. .,Institute for Protein Dynamics, Kyoto Sangyo University, Kyoto, 605-8555, Japan.
| | - Kazuhiro Nagata
- Laboratory of Molecular and Cellular Biology, Faculty of Life Sciences, Kyoto Sangyo University, Kyoto, 603-8555, Japan. .,Institute for Protein Dynamics, Kyoto Sangyo University, Kyoto, 605-8555, Japan. .,JT Biohistory Research Hall, Murasaki Town 1-1, Takatsuki City, Osaka, 569-1125, Japan.
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Fang J, Sheng R, Qin ZH. NADPH Oxidases in the Central Nervous System: Regional and Cellular Localization and the Possible Link to Brain Diseases. Antioxid Redox Signal 2021; 35:951-973. [PMID: 34293949 DOI: 10.1089/ars.2021.0040] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Significance: The significant role of reduced nicotinamide adenine dinucleotide phosphate (NADPH) oxidase (Nox) in signal transduction is mediated by the production of reactive oxygen species (ROS), especially in the central nervous system (CNS). The pathogenesis of some neurologic and psychiatric diseases is regulated by ROS, acting as a second messenger or pathogen. Recent Advances: In the CNS, the involvement of Nox-derived ROS has been implicated in the regulation of multiple signals, including cell survival/apoptosis, neuroinflammation, migration, differentiation, proliferation, and synaptic plasticity, as well as the integrity of the blood/brain barrier. In these processes, the intracellular signals mediated by the members of the Nox family vary among different tissues. The present review illuminates the regions and cellular, subcellular localization of Nox isoforms in the brain, the signal transduction, and the role of NOX enzymes in pathophysiology, respectively. Critical Issues: Different signal transduction cascades are coupled to ROS derived from various Nox homologues with varying degrees. Therefore, a critical issue worth noting is the varied role of the homologues of NOX enzymes in different signaling pathways and also they mediate different phenotypes in the diverse pathophysiological condition. This substantiates the effectiveness of selective Nox inhibitors in the CNS. Future Directions: Further investigation to elucidate the role of various homologues of NOX enzymes in acute and chronic brain diseases and signaling mechanisms, and the development of more specific NOX inhibitors for the treatment of CNS disease are urgently needed. Antioxid. Redox Signal. 35, 951-973.
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Affiliation(s)
- Jie Fang
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
| | - Rui Sheng
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
| | - Zheng-Hong Qin
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, College of Pharmaceutical Science, Soochow University, Suzhou, China
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32
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Herb M, Gluschko A, Schramm M. Reactive Oxygen Species: Not Omnipresent but Important in Many Locations. Front Cell Dev Biol 2021; 9:716406. [PMID: 34557488 PMCID: PMC8452931 DOI: 10.3389/fcell.2021.716406] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Accepted: 08/19/2021] [Indexed: 01/08/2023] Open
Abstract
Reactive oxygen species (ROS), such as the superoxide anion or hydrogen peroxide, have been established over decades of research as, on the one hand, important and versatile molecules involved in a plethora of homeostatic processes and, on the other hand, as inducers of damage, pathologies and diseases. Which effects ROS induce, strongly depends on the cell type and the source, amount, duration and location of ROS production. Similar to cellular pH and calcium levels, which are both strictly regulated and only altered by the cell when necessary, the redox balance of the cell is also tightly regulated, not only on the level of the whole cell but in every cellular compartment. However, a still widespread view present in the scientific community is that the location of ROS production is of no major importance and that ROS randomly diffuse from their cellular source of production throughout the whole cell and hit their redox-sensitive targets when passing by. Yet, evidence is growing that cells regulate ROS production and therefore their redox balance by strictly controlling ROS source activation as well as localization, amount and duration of ROS production. Hopefully, future studies in the field of redox biology will consider these factors and analyze cellular ROS more specifically in order to revise the view of ROS as freely flowing through the cell.
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Affiliation(s)
- Marc Herb
- Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany
| | - Alexander Gluschko
- Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany
| | - Michael Schramm
- Institute for Medical Microbiology, Immunology and Hygiene, Cologne, Germany
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33
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Zoccarato A, Nabeebaccus AA, Oexner RR, Santos CXC, Shah AM. The nexus between redox state and intermediary metabolism. FEBS J 2021; 289:5440-5462. [PMID: 34496138 DOI: 10.1111/febs.16191] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 08/20/2021] [Accepted: 09/07/2021] [Indexed: 12/12/2022]
Abstract
Reactive oxygen species (ROS) are not just a by-product of cellular metabolic processes but act as signalling molecules that regulate both physiological and pathophysiological processes. A close connection exists in cells between redox homeostasis and cellular metabolism. In this review, we describe how intracellular redox state and glycolytic intermediary metabolism are closely coupled. On the one hand, ROS signalling can control glycolytic intermediary metabolism by direct regulation of the activity of key metabolic enzymes and indirect regulation via redox-sensitive transcription factors. On the other hand, metabolic adaptation and reprogramming in response to physiological or pathological stimuli regulate intracellular redox balance, through mechanisms such as the generation of reducing equivalents. We also discuss the impact of these intermediary metabolism-redox circuits in physiological and disease settings across different tissues. A better understanding of the mechanisms regulating these intermediary metabolism-redox circuits will be crucial to the development of novel therapeutic strategies.
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Affiliation(s)
- Anna Zoccarato
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Excellence, London, UK
| | - Adam A Nabeebaccus
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Excellence, London, UK
| | - Rafael R Oexner
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Excellence, London, UK
| | - Celio X C Santos
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Excellence, London, UK
| | - Ajay M Shah
- School of Cardiovascular Medicine & Sciences, King's College London British Heart Foundation Centre of Excellence, London, UK
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Herranz-Itúrbide M, Peñuelas-Haro I, Espinosa-Sotelo R, Bertran E, Fabregat I. The TGF-β/NADPH Oxidases Axis in the Regulation of Liver Cell Biology in Health and Disease. Cells 2021; 10:cells10092312. [PMID: 34571961 PMCID: PMC8470857 DOI: 10.3390/cells10092312] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/30/2021] [Accepted: 08/30/2021] [Indexed: 12/28/2022] Open
Abstract
The Transforming Growth Factor-beta (TGF-β) pathway plays essential roles in liver development and homeostasis and become a relevant factor involved in different liver pathologies, particularly fibrosis and cancer. The family of NADPH oxidases (NOXs) has emerged in recent years as targets of the TGF-β pathway mediating many of its effects on hepatocytes, stellate cells and macrophages. This review focuses on how the axis TGF-β/NOXs may regulate the biology of different liver cells and how this influences physiological situations, such as liver regeneration, and pathological circumstances, such as liver fibrosis and cancer. Finally, we discuss whether NOX inhibitors may be considered as potential therapeutic tools in liver diseases.
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Affiliation(s)
- Macarena Herranz-Itúrbide
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain; (M.H.-I.); (I.P.-H.); (R.E.-S.); (E.B.)
- Oncology Program, CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Irene Peñuelas-Haro
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain; (M.H.-I.); (I.P.-H.); (R.E.-S.); (E.B.)
- Oncology Program, CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rut Espinosa-Sotelo
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain; (M.H.-I.); (I.P.-H.); (R.E.-S.); (E.B.)
- Oncology Program, CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Esther Bertran
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain; (M.H.-I.); (I.P.-H.); (R.E.-S.); (E.B.)
- Oncology Program, CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Isabel Fabregat
- TGF-β and Cancer Group, Oncobell Program, Bellvitge Biomedical Research Institute (IDIBELL), L’Hospitalet de Llobregat, 08908 Barcelona, Spain; (M.H.-I.); (I.P.-H.); (R.E.-S.); (E.B.)
- Oncology Program, CIBEREHD, National Biomedical Research Institute on Liver and Gastrointestinal Diseases, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Physiological Sciences, Faculty of Medicine and Health Sciences, University of Barcelona, 08907 Barcelona, Spain
- Correspondence: ; Tel.: +34-932-607-828
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Communications between Mitochondria and Endoplasmic Reticulum in the Regulation of Metabolic Homeostasis. Cells 2021; 10:cells10092195. [PMID: 34571844 PMCID: PMC8468463 DOI: 10.3390/cells10092195] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 12/18/2022] Open
Abstract
Mitochondria associated membranes (MAM), which are the contact sites between endoplasmic reticulum (ER) and mitochondria, have emerged as an important hub for signaling molecules to integrate the cellular and organelle homeostasis, thus facilitating the adaptation of energy metabolism to nutrient status. This review explores the dynamic structural and functional features of the MAM and summarizes the various abnormalities leading to the impaired insulin sensitivity and metabolic diseases.
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36
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Weissman D, Maack C. Redox signaling in heart failure and therapeutic implications. Free Radic Biol Med 2021; 171:345-364. [PMID: 34019933 DOI: 10.1016/j.freeradbiomed.2021.05.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 04/17/2021] [Accepted: 05/03/2021] [Indexed: 12/13/2022]
Abstract
Heart failure is a growing health burden worldwide characterized by alterations in excitation-contraction coupling, cardiac energetic deficit and oxidative stress. While current treatments are mostly limited to antagonization of neuroendocrine activation, more recent data suggest that also targeting metabolism may provide substantial prognostic benefit. However, although in a broad spectrum of preclinical models, oxidative stress plays a causal role for the development and progression of heart failure, no treatment that targets reactive oxygen species (ROS) directly has entered the clinical arena yet. In the heart, ROS derive from various sources, such as NADPH oxidases, xanthine oxidase, uncoupled nitric oxide synthase and mitochondria. While mitochondria are the primary source of ROS in the heart, communication between different ROS sources may be relevant for physiological signalling events as well as pathologically elevated ROS that deteriorate excitation-contraction coupling, induce hypertrophy and/or trigger cell death. Here, we review the sources of ROS in the heart, the modes of pathological activation of ROS formation as well as therapeutic approaches that may target ROS specifically in mitochondria.
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Affiliation(s)
- David Weissman
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany
| | - Christoph Maack
- Comprehensive Heart Failure Center (CHFC), University Clinic Würzburg, Würzburg, Germany; Department of Internal Medicine 1, University Clinic Würzburg, Würzburg, Germany.
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37
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Pedersen SF, Flinck M, Pardo LA. The Interplay between Dysregulated Ion Transport and Mitochondrial Architecture as a Dangerous Liaison in Cancer. Int J Mol Sci 2021; 22:ijms22105209. [PMID: 34069047 PMCID: PMC8156689 DOI: 10.3390/ijms22105209] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/08/2021] [Accepted: 05/11/2021] [Indexed: 02/06/2023] Open
Abstract
Transport of ions and nutrients is a core mitochondrial function, without which there would be no mitochondrial metabolism and ATP production. Both ion homeostasis and mitochondrial phenotype undergo pervasive changes during cancer development, and both play key roles in driving the malignancy. However, the link between these events has been largely ignored. This review comprehensively summarizes and critically discusses the role of the reciprocal relationship between ion transport and mitochondria in crucial cellular functions, including metabolism, signaling, and cell fate decisions. We focus on Ca2+, H+, and K+, which play essential and highly interconnected roles in mitochondrial function and are profoundly dysregulated in cancer. We describe the transport and roles of these ions in normal mitochondria, summarize the changes occurring during cancer development, and discuss how they might impact tumorigenesis.
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Affiliation(s)
- Stine F. Pedersen
- Department of Biology, Faculty of Science, University of Copenhagen, 2100 Copenhagen, Denmark;
- Correspondence: (S.F.P.); (L.A.P.)
| | - Mette Flinck
- Department of Biology, Faculty of Science, University of Copenhagen, 2100 Copenhagen, Denmark;
| | - Luis A. Pardo
- Oncophysiology Group, Max Planck Institute for Experimental Medicine, 37075 Göttingen, Germany
- Correspondence: (S.F.P.); (L.A.P.)
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38
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Buelna-Chontal M, García-Niño WR, Silva-Palacios A, Enríquez-Cortina C, Zazueta C. Implications of Oxidative and Nitrosative Post-Translational Modifications in Therapeutic Strategies against Reperfusion Damage. Antioxidants (Basel) 2021; 10:749. [PMID: 34066806 PMCID: PMC8151040 DOI: 10.3390/antiox10050749] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Revised: 05/03/2021] [Accepted: 05/05/2021] [Indexed: 12/17/2022] Open
Abstract
Post-translational modifications based on redox reactions "switch on-off" the biological activity of different downstream targets, modifying a myriad of processes and providing an efficient mechanism for signaling regulation in physiological and pathological conditions. Such modifications depend on the generation of redox components, such as reactive oxygen species and nitric oxide. Therefore, as the oxidative or nitrosative milieu prevailing in the reperfused heart is determinant for protective signaling, in this review we defined the impact of redox-based post-translational modifications resulting from either oxidative/nitrosative signaling or oxidative/nitrosative stress that occurs during reperfusion damage. The role that cardioprotective conditioning strategies have had to establish that such changes occur at different subcellular levels, particularly in mitochondria, is also presented. Another section is devoted to the possible mechanism of signal delivering of modified proteins. Finally, we discuss the possible efficacy of redox-based therapeutic strategies against reperfusion damage.
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Affiliation(s)
| | | | | | | | - Cecilia Zazueta
- Department of Cardiovascular Biomedicine, National Institute of Cardiology Ignacio Chávez, Mexico City 14080, Mexico; (M.B.-C.); (W.R.G.-N.); (A.S.-P.); (C.E.-C.)
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39
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Gong Y, Lin J, Ma Z, Yu M, Wang M, Lai D, Fu G. Mitochondria-associated membrane-modulated Ca 2+ transfer: A potential treatment target in cardiac ischemia reperfusion injury and heart failure. Life Sci 2021; 278:119511. [PMID: 33864818 DOI: 10.1016/j.lfs.2021.119511] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/25/2021] [Accepted: 03/31/2021] [Indexed: 12/12/2022]
Abstract
Effective Ca2+ dependent mitochondrial energy supply is imperative for proper cardiac contractile activity, while disruption of Ca2+ homeostasis participates in the pathogenesis of multiple human diseases. This phenomenon is particularly prominent in cardiac ischemia and reperfusion (I/R) and heart failure, both of which require strict clinical intervention. The interface between endoplasmic reticula (ER) and mitochondria, designated the mitochondria-associated membrane (MAM), is now regarded as a crucial mediator of Ca2+ transportation. Thus, interventions targeting this physical and functional coupling between mitochondria and the ER are highly desirable. Increasing evidence supports the notion that restoration, and maintenance, of the physiological contact between these two organelles can improve mitochondrial function, while inhibiting cell death, thereby sufficiently ameliorating I/R injury and heart failure development. A better understanding regarding the underlying mechanism of MAM-mediated transport will pave the way for identification of novel treatment approaches for heart disease. Therefore, in this review, we summarize the crucial functions and potential mechanisms of MAMs in the pathogenesis of I/R and heart failure.
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Affiliation(s)
- Yingchao Gong
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China
| | - Jun Lin
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China
| | - Zetao Ma
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China
| | - Mei Yu
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China
| | - Meihui Wang
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China.
| | - Dongwu Lai
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China.
| | - Guosheng Fu
- Department of Cardiology, Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, Zhejiang, China; Key Laboratory of Cardiovascular Intervention and Regenerative Medicine of Zhejiang Province, China.
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40
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Balancing ER-Mitochondrial Ca 2+ Fluxes in Health and Disease. Trends Cell Biol 2021; 31:598-612. [PMID: 33678551 DOI: 10.1016/j.tcb.2021.02.003] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/29/2021] [Accepted: 02/02/2021] [Indexed: 02/08/2023]
Abstract
Organelles cooperate with each other to control cellular homeostasis and cell functions by forming close connections through membrane contact sites. Important contacts are present between the endoplasmic reticulum (ER), the main intracellular Ca2+-storage organelle, and the mitochondria, the organelle responsible not only for the majority of cellular ATP production but also for switching on cell death processes. Several Ca2+-transport systems focalize at these contact sites, thereby enabling the efficient transmission of Ca2+ signals from the ER toward mitochondria. This provides tight control of mitochondrial functions at the microdomain level. Here, we discuss how ER-mitochondrial Ca2+ transfers support cell function and how their dysregulation underlies, drives, or contributes to pathogenesis and pathophysiology, with a major focus on cancer and neurodegeneration but also with attention to other diseases such as diabetes and rare genetic diseases.
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41
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Leal NS, Martins LM. Mind the Gap: Mitochondria and the Endoplasmic Reticulum in Neurodegenerative Diseases. Biomedicines 2021; 9:biomedicines9020227. [PMID: 33672391 PMCID: PMC7926795 DOI: 10.3390/biomedicines9020227] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/17/2021] [Accepted: 02/18/2021] [Indexed: 12/16/2022] Open
Abstract
The way organelles are viewed by cell biologists is quickly changing. For many years, these cellular entities were thought to be unique and singular structures that performed specific roles. However, in recent decades, researchers have discovered that organelles are dynamic and form physical contacts. In addition, organelle interactions modulate several vital biological functions, and the dysregulation of these contacts is involved in cell dysfunction and different pathologies, including neurodegenerative diseases. Mitochondria–ER contact sites (MERCS) are among the most extensively studied and understood juxtapositioned interorganelle structures. In this review, we summarise the major biological and ultrastructural dysfunctions of MERCS in neurodegeneration, with a particular focus on Alzheimer’s disease as well as Parkinson’s disease, amyotrophic lateral sclerosis and frontotemporal dementia. We also propose an updated version of the MERCS hypothesis in Alzheimer’s disease based on new findings. Finally, we discuss the possibility of MERCS being used as possible drug targets to halt cell death and neurodegeneration.
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Functions of ROS in Macrophages and Antimicrobial Immunity. Antioxidants (Basel) 2021; 10:antiox10020313. [PMID: 33669824 PMCID: PMC7923022 DOI: 10.3390/antiox10020313] [Citation(s) in RCA: 233] [Impact Index Per Article: 77.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 02/07/2023] Open
Abstract
Reactive oxygen species (ROS) are a chemically defined group of reactive molecules derived from molecular oxygen. ROS are involved in a plethora of processes in cells in all domains of life, ranging from bacteria, plants and animals, including humans. The importance of ROS for macrophage-mediated immunity is unquestioned. Their functions comprise direct antimicrobial activity against bacteria and parasites as well as redox-regulation of immune signaling and induction of inflammasome activation. However, only a few studies have performed in-depth ROS analyses and even fewer have identified the precise redox-regulated target molecules. In this review, we will give a brief introduction to ROS and their sources in macrophages, summarize the versatile roles of ROS in direct and indirect antimicrobial immune defense, and provide an overview of commonly used ROS probes, scavengers and inhibitors.
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Wei J, Fang D. Endoplasmic Reticulum Stress Signaling and the Pathogenesis of Hepatocarcinoma. Int J Mol Sci 2021; 22:ijms22041799. [PMID: 33670323 PMCID: PMC7918477 DOI: 10.3390/ijms22041799] [Citation(s) in RCA: 170] [Impact Index Per Article: 56.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/05/2021] [Accepted: 02/08/2021] [Indexed: 12/12/2022] Open
Abstract
Hepatocellular carcinoma (HCC), also known as hepatoma, is a primary malignancy of the liver and the third leading cause of cancer mortality globally. Although much attention has focused on HCC, its pathogenesis remains largely obscure. The endoplasmic reticulum (ER) is a cellular organelle important for regulating protein synthesis, folding, modification and trafficking, and lipid metabolism. ER stress occurs when ER homeostasis is disturbed by numerous environmental, physiological, and pathological challenges. In response to ER stress due to misfolded/unfolded protein accumulation, unfolded protein response (UPR) is activated to maintain ER function for cell survival or, in cases of excessively severe ER stress, initiation of apoptosis. The liver is especially susceptible to ER stress given its protein synthesis and detoxification functions. Experimental data suggest that ER stress and unfolded protein response are involved in HCC development, aggressiveness and response to treatment. Herein, we highlight recent findings and provide an overview of the evidence linking ER stress to the pathogenesis of HCC.
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In the right place at the right time: ROS and Ca 2+ are allies in the battle for survival. Cell Calcium 2021; 95:102354. [PMID: 33581406 DOI: 10.1016/j.ceca.2021.102354] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/05/2021] [Accepted: 01/05/2021] [Indexed: 11/21/2022]
Abstract
Both Ca2+ and reactive oxygen species (ROS) are double face entities, acting as signaling messengers or cell fate determinants according to their concentration and to spatial temporal restrictions. Recently, Beretta and colleagues found that ROS generated at ER-mitochondria contact sites (MAMs) support cell survival in stress conditions by decreasing inter-organelle Ca2+ transfer.
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45
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Cortassa S, Juhaszova M, Aon MA, Zorov DB, Sollott SJ. Mitochondrial Ca 2+, redox environment and ROS emission in heart failure: Two sides of the same coin? J Mol Cell Cardiol 2021; 151:113-125. [PMID: 33301801 PMCID: PMC7880885 DOI: 10.1016/j.yjmcc.2020.11.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/05/2020] [Accepted: 11/28/2020] [Indexed: 12/11/2022]
Abstract
Heart failure (HF) is a progressive, debilitating condition characterized, in part, by altered ionic equilibria, increased ROS production and impaired cellular energy metabolism, contributing to variable profiles of systolic and diastolic dysfunction with significant functional limitations and risk of premature death. We summarize current knowledge concerning changes of intracellular Na+ and Ca2+ control mechanisms during the disease progression and their consequences on mitochondrial Ca2+ homeostasis and the shift in redox balance. Absent existing biological data, our computational modeling studies advance a new 'in silico' analysis to reconcile existing opposing views, based on different experimental HF models, regarding variations in mitochondrial Ca2+ concentration that participate in triggering and perpetuating oxidative stress in the failing heart and their impact on cardiac energetics. In agreement with our hypothesis and the literature, model simulations demonstrate the possibility that the heart's redox status together with cytoplasmic Na+ concentrations act as regulators of mitochondrial Ca2+ levels in HF and of the bioenergetics response that will ultimately drive ATP supply and oxidative stress. The resulting model predictions propose future directions to study the evolution of HF as well as other types of heart disease, and to develop novel testable mechanistic hypotheses that may lead to improved therapeutics.
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Affiliation(s)
- Sonia Cortassa
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Magdalena Juhaszova
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Miguel A Aon
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States; Translational Gerontology Branch, National Institute on Aging, NIH, Baltimore, MD, United States.
| | - Dmitry B Zorov
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States; Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.
| | - Steven J Sollott
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD, United States.
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Mitochondrial reactive oxygen species in physiology and disease. Cell Calcium 2021; 94:102344. [PMID: 33556741 DOI: 10.1016/j.ceca.2020.102344] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Revised: 12/23/2020] [Accepted: 12/23/2020] [Indexed: 12/13/2022]
Abstract
Mitochondrial reactive oxygen species (mROS) are routinely produced at several sites within the organelle. The balance in their formation and elimination is maintained by a complex and robust antioxidant system. mROS may act as second messengers and regulate a number of physiological processes, such as insulin signaling, cell differentiation and proliferation, wound healing, etc. Nevertheless, when a sudden or sustained increase in ROS formation is not efficiently neutralized by the endogenous antioxidant defense system, the detrimental impact of high mROS levels on cell function and viability eventually results in disease development. In this review, we will focus on the dual role of mROS in pathophysiology, emphasizing the physiological role exerted by a regulated mROS production/elimination, and discussing the detrimental effects evoked by an imbalance in mitochondrial redox state. Furthermore, we will touch upon the interplay between mROS and Ca2+ homeostasis.
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Bassot A, Chen J, Simmen T. Post-Translational Modification of Cysteines: A Key Determinant of Endoplasmic Reticulum-Mitochondria Contacts (MERCs). CONTACT (THOUSAND OAKS (VENTURA COUNTY, CALIF.)) 2021; 4:25152564211001213. [PMID: 37366382 PMCID: PMC10243593 DOI: 10.1177/25152564211001213] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 01/18/2021] [Accepted: 02/08/2021] [Indexed: 06/28/2023]
Abstract
Cells must adjust their redox state to an ever-changing environment that could otherwise result in compromised homeostasis. An obvious way to adapt to changing redox conditions depends on cysteine post-translational modifications (PTMs) to adapt conformation, localization, interactions and catalytic activation of proteins. Such PTMs should occur preferentially in the proximity of oxidative stress sources. A particular concentration of these sources is found near membranes where the endoplasmic reticulum (ER) and the mitochondria interact on domains called MERCs (Mitochondria-Endoplasmic Reticulum Contacts). Here, fine inter-organelle communication controls metabolic homeostasis. MERCs achieve this goal through fluxes of Ca2+ ions and inter-organellar lipid exchange. Reactive oxygen species (ROS) that cause PTMs of mitochondria-associated membrane (MAM) proteins determine these intertwined MERC functions. Chronic changes of the pattern of these PTMs not only control physiological processes such as the circadian clock but could also lead to or worsen many human disorders such as cancer and neurodegenerative diseases.
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Affiliation(s)
| | | | - Thomas Simmen
- Thomas Simmen, Department of Cell
Biology, Faculty of Medicine and Dentistry, University of Alberta,
Edmonton, Alberta, Canada T6G2H7.
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Thallas-Bonke V, Tan SM, Lindblom RS, Snelson M, Granata C, Jha JC, Sourris KC, Laskowski A, Watson A, Tauc M, Rubera I, Zheng G, Shah AM, Harris DCH, Elbatreek MH, Kantharidis P, Cooper ME, Jandeleit-Dahm K, Coughlan MT. Targeted deletion of nicotinamide adenine dinucleotide phosphate oxidase 4 from proximal tubules is dispensable for diabetic kidney disease development. Nephrol Dial Transplant 2020; 36:988-997. [PMID: 33367789 DOI: 10.1093/ndt/gfaa376] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND The nicotinamide adenine dinucleotide phosphate oxidase isoform 4 (Nox4) mediates reactive oxygen species (ROS) production and renal fibrosis in diabetic kidney disease (DKD) at the level of the podocyte. However, the mitochondrial localization of Nox4 and its role as a mitochondrial bioenergetic sensor has recently been reported. Whether Nox4 drives pathology in DKD within the proximal tubular compartment, which is densely packed with mitochondria, is not yet known. METHODS We generated a proximal tubular-specific Nox4 knockout mouse model by breeding Nox4flox/flox mice with mice expressing Cre recombinase under the control of the sodium-glucose cotransporter-2 promoter. Subsets of Nox4ptKO mice and their Nox4flox/flox littermates were injected with streptozotocin (STZ) to induce diabetes. Mice were followed for 20 weeks and renal injury was assessed. RESULTS Genetic ablation of proximal tubular Nox4 (Nox4ptKO) resulted in no change in renal function and histology. Nox4ptKO mice and Nox4flox/flox littermates injected with STZ exhibited the hallmarks of DKD, including hyperfiltration, albuminuria, renal fibrosis and glomerulosclerosis. Surprisingly, diabetes-induced renal injury was not improved in Nox4ptKO STZ mice compared with Nox4flox/flox STZ mice. Although diabetes conferred ROS overproduction and increased the mitochondrial oxygen consumption rate, proximal tubular deletion of Nox4 did not normalize oxidative stress or mitochondrial bioenergetics. CONCLUSIONS Taken together, these results demonstrate that genetic deletion of Nox4 from the proximal tubules does not influence DKD development, indicating that Nox4 localization within this highly energetic compartment is dispensable for chronic kidney disease pathogenesis in the setting of diabetes.
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Affiliation(s)
| | - Sih Min Tan
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Runa S Lindblom
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Matthew Snelson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Cesare Granata
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,Institute for Health and Sport, Victoria University, Melbourne, Victoria, Australia
| | - Jay Chandra Jha
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karly C Sourris
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Adrienne Laskowski
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Anna Watson
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Michel Tauc
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Isabelle Rubera
- Laboratoire de Physiomédecine Moléculaire, LP2M, UMR-CNRS 7370, Université Côte d'Azur, Nice, France
| | - Guoping Zheng
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Ajay M Shah
- King's College London British Heart Foundation Centre of Excellence, School of Cardiovascular Medicine and Sciences, London, UK
| | - David C H Harris
- Centre for Transplantation and Renal Research, Westmead Institute for Medical Research, University of Sydney, Sydney, New South Wales, Australia
| | - Mahmoud H Elbatreek
- Department of Pharmacology and Personalised Medicine, School for Mental Health and Neuroscience, Faculty of Health, Medicine and Life Sciences, Maastricht University, Maastricht, The Netherlands.,Department of Pharmacology and Toxicology, Faculty of Pharmacy, Zagazig University, Zagazig, Egypt
| | - Phillip Kantharidis
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Mark E Cooper
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
| | - Karin Jandeleit-Dahm
- Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia.,German Diabetes Centre, Leibniz Centre for Diabetes Research, Heinrich Heine University, Duesseldorf, Germany
| | - Melinda T Coughlan
- Baker Heart and Diabetes Institute, Melbourne, Victoria, Australia.,Department of Diabetes, Central Clinical School, Monash University, Alfred Medical Research and Education Precinct, Melbourne, Victoria, Australia
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