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Bilkei-Gorzo A, Schurmann B, Schneider M, Kraemer M, Nidadavolu P, Beins EC, Müller CE, Dvir-Ginzberg M, Zimmer A. Bidirectional Effect of Long-Term Δ 9-Tetrahydrocannabinol Treatment on mTOR Activity and Metabolome. ACS Pharmacol Transl Sci 2024; 7:2637-2649. [PMID: 39296258 PMCID: PMC11406684 DOI: 10.1021/acsptsci.4c00002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/15/2024] [Accepted: 06/18/2024] [Indexed: 09/21/2024]
Abstract
Brain aging is associated with cognitive decline, reduced synaptic plasticity, and altered metabolism. The activity of mechanistic target of rapamycin (mTOR) has a major impact on aging by regulating cellular metabolism. Although reduced mTOR signaling has a general antiaging effect, it can negatively affect the aging brain by reducing synaptogenesis and thus cognitive functions. Increased mTOR activity facilitates aging and is responsible for the amnestic effect of the cannabinoid receptor 1 agonist Δ9-tetrahydrocannabinol (THC) in higher doses. Long-term low-dose Δ9-THC had an antiaging effect on the brain by restoring cognitive abilities and synapse densities in old mice. Whether changes in mTOR signaling and metabolome are associated with its positive effects on the aging brain is an open question. Here, we show that Δ9-THC treatment has a tissue-dependent and dual effect on mTOR signaling and the metabolome. In the brain, Δ9-THC treatment induced a transient increase in mTOR activity and in the levels of amino acids and metabolites involved in energy production, followed by an increased synthesis of synaptic proteins. Unexpectedly, we found a similar reduction in the mTOR activity in adipose tissue and in the level of amino acids and carbohydrate metabolites in blood plasma as in animals on a low-calorie diet. Thus, long-term Δ9-THC treatment first increases the level of energy and synaptic protein production in the brain, followed by a reduction in mTOR activity and metabolic processes in the periphery. Our study suggests that a dual effect on mTOR activity and the metabolome could be the basis for an effective antiaging and pro-cognitive medication.
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Affiliation(s)
- Andras Bilkei-Gorzo
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn 53125, Germany
| | - Britta Schurmann
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn 53125, Germany
| | - Marion Schneider
- Pharmaceutical Institute, University of Bonn, Bonn 53121, Germany
| | - Michael Kraemer
- Institute of Forensic Medicine, Medical Faculty, University of Bonn, Bonn 53111, Germany
| | - Prakash Nidadavolu
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn 53125, Germany
| | - Eva C Beins
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn 53125, Germany
| | - Christa E Müller
- Pharmaceutical Institute, University of Bonn, Bonn 53121, Germany
| | - Mona Dvir-Ginzberg
- Institute of BioMedical and Oral Research, Faculty of Dental Medicine, Hebrew University of Jerusalem, Jerusalem 9112102, Israel
| | - Andreas Zimmer
- Institute of Molecular Psychiatry, Medical Faculty, University of Bonn, Bonn 53125, Germany
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2
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Bao S, Yin T, Liu S. Ovarian aging: energy metabolism of oocytes. J Ovarian Res 2024; 17:118. [PMID: 38822408 PMCID: PMC11141068 DOI: 10.1186/s13048-024-01427-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Accepted: 04/30/2024] [Indexed: 06/03/2024] Open
Abstract
In women who are getting older, the quantity and quality of their follicles or oocytes and decline. This is characterized by decreased ovarian reserve function (DOR), fewer remaining oocytes, and lower quality oocytes. As more women choose to delay childbirth, the decline in fertility associated with age has become a significant concern for modern women. The decline in oocyte quality is a key indicator of ovarian aging. Many studies suggest that age-related changes in oocyte energy metabolism may impact oocyte quality. Changes in oocyte energy metabolism affect adenosine 5'-triphosphate (ATP) production, but how related products and proteins influence oocyte quality remains largely unknown. This review focuses on oocyte metabolism in age-related ovarian aging and its potential impact on oocyte quality, as well as therapeutic strategies that may partially influence oocyte metabolism. This research aims to enhance our understanding of age-related changes in oocyte energy metabolism, and the identification of biomarkers and treatment methods.
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Affiliation(s)
- Shenglan Bao
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Tailang Yin
- Reproductive Medical Center, Renmin Hospital of Wuhan University, Wuhan, China.
| | - Su Liu
- Shenzhen Key Laboratory of Reproductive Immunology for Peri-Implantation, , Shenzhen Zhongshan Institute for Reproductive Medicine and Genetics, Shenzhen Zhongshan Obstetrics & Gynecology Hospital (Formerly Shenzhen Zhongshan Urology Hospital), Shenzhen, China.
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3
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Wufuer R, Liu K, Feng J, Wang M, Hu S, Chen F, Lin S, Zhang Y. Distinct mechanisms by which Nrf1 and Nrf2 as drug targets contribute to the anticancer efficacy of cisplatin on hepatoma cells. Free Radic Biol Med 2024; 213:488-511. [PMID: 38278308 DOI: 10.1016/j.freeradbiomed.2024.01.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 12/23/2023] [Accepted: 01/18/2024] [Indexed: 01/28/2024]
Abstract
Cisplatin (cis-Dichlorodiamineplatinum[II], CDDP) is generally accepted as a platinum-based alkylating agent type of the DNA-damaging anticancer drug, which is widely administrated in clinical treatment of many solid tumors. The pharmacological effect of CDDP is mainly achieved by replacing the chloride ion (Cl-) in its structure with H2O to form active substances with the strong electrophilic properties and then react with any nucleophilic molecules, primarily leading to genomic DNA damage and subsequent cell death. In this process, those target genes driven by the consensus electrophilic and/or antioxidant response elements (EpREs/AREs) in their promoter regions are also activated or repressed by CDDP. Thereby, we here examined the expression profiling of such genes regulated by two principal antioxidant transcription factors Nrf1 and Nrf2 (both encoded by Nfe2l1 and Nfe2l2, respectively) in diverse cellular signaling responses to this intervention. The results demonstrated distinct cellular metabolisms, molecular pathways and signaling response mechanisms by which Nrf1 and Nrf2 as the drug targets differentially contribute to the anticancer efficacy of CDDP on hepatoma cells and xenograft tumor mice. Interestingly, the role of Nrf1, rather than Nrf2, is required for the anticancer effect of CDDP, to suppress malignant behavior of HepG2 cells by differentially monitoring multi-hierarchical signaling to gene regulatory networks. To our surprise, it was found there exists a closer relationship of Nrf1α than Nrf2 with DNA repair, but the hyperactive Nrf2 in Nrf1α-∕- cells manifests a strong correlation with its resistance to CDDP, albeit their mechanistic details remain elusive.
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Affiliation(s)
- Reziyamu Wufuer
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China; The Laboratory of Cell Biochemistry and Topogenetic Regulation, College of Bioengineering and Faculty of Medical Sciences, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
| | - Keli Liu
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China; The Laboratory of Cell Biochemistry and Topogenetic Regulation, College of Bioengineering and Faculty of Medical Sciences, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
| | - Jing Feng
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China.
| | - Meng Wang
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; The Laboratory of Cell Biochemistry and Topogenetic Regulation, College of Bioengineering and Faculty of Medical Sciences, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
| | - Shaofan Hu
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
| | - Feilong Chen
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China.
| | - Shanshan Lin
- Bioengineering College and Graduate School, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China; Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China; The Laboratory of Cell Biochemistry and Topogenetic Regulation, College of Bioengineering and Faculty of Medical Sciences, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
| | - Yiguo Zhang
- Chongqing University Jiangjin Hospital, School of Medicine, Chongqing University, No. 725 Jiangzhou Avenue, Dingshan Street, Jiangjin District, Chongqing, 402260, China; The Laboratory of Cell Biochemistry and Topogenetic Regulation, College of Bioengineering and Faculty of Medical Sciences, Chongqing University, No. 174 Shazheng Street, Shapingba District, Chongqing, 400044, China.
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Harvanek ZM, Boks MP, Vinkers CH, Higgins-Chen AT. The Cutting Edge of Epigenetic Clocks: In Search of Mechanisms Linking Aging and Mental Health. Biol Psychiatry 2023; 94:694-705. [PMID: 36764569 PMCID: PMC10409884 DOI: 10.1016/j.biopsych.2023.02.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 01/31/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023]
Abstract
Individuals with psychiatric disorders are at increased risk of age-related diseases and early mortality. Recent studies demonstrate that this link between mental health and aging is reflected in epigenetic clocks, aging biomarkers based on DNA methylation. The reported relationships between epigenetic clocks and mental health are mostly correlational, and the mechanisms are poorly understood. Here, we review recent progress concerning the molecular and cellular processes underlying epigenetic clocks as well as novel technologies enabling further studies of the causes and consequences of epigenetic aging. We then review the current literature on how epigenetic clocks relate to specific aspects of mental health, such as stress, medications, substance use, health behaviors, and symptom clusters. We propose an integrated framework where mental health and epigenetic aging are each broken down into multiple distinct processes, which are then linked to each other, using stress and schizophrenia as examples. This framework incorporates the heterogeneity and complexity of both mental health conditions and aging, may help reconcile conflicting results, and provides a basis for further hypothesis-driven research in humans and model systems to investigate potentially causal mechanisms linking aging and mental health.
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Affiliation(s)
- Zachary M Harvanek
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut
| | - Marco P Boks
- Department of Psychiatry, University Medical Center Utrecht Brain Center, University of Utrecht, Utrecht, the Netherlands
| | - Christiaan H Vinkers
- Department of Psychiatry, Amsterdam University Medical Center, location Vrije Universiteit Amsterdam, Amsterdam, the Netherlands; Mood, Anxiety, Psychosis, Sleep & Stress program, Amsterdam Neuroscience, Vrije Universiteit Amsterdam, Amsterdam, the Netherlands
| | - Albert T Higgins-Chen
- Department of Psychiatry, Yale University School of Medicine, New Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut.
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5
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Kaplánek R, Kejík Z, Hajduch J, Veselá K, Kučnirová K, Skaličková M, Venhauerová A, Hosnedlová B, Hromádka R, Dytrych P, Novotný P, Abramenko N, Antonyová V, Hoskovec D, Babula P, Masařík M, Martásek P, Jakubek M. TET protein inhibitors: Potential and limitations. Biomed Pharmacother 2023; 166:115324. [PMID: 37598475 DOI: 10.1016/j.biopha.2023.115324] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 07/31/2023] [Accepted: 08/10/2023] [Indexed: 08/22/2023] Open
Abstract
TET proteins (methylcytosine dioxygenases) play an important role in the regulation of gene expression. Dysregulation of their activity is associated with many serious pathogenic states such as oncological diseases. Regulation of their activity by specific inhibitors could represent a promising therapeutic strategy. Therefore, this review describes various types of TET protein inhibitors in terms of their inhibitory mechanism and possible applicability. The potential and possible limitations of this approach are thoroughly discussed in the context of TET protein functionality in living systems. Furthermore, possible therapeutic strategies based on the inhibition of TET proteins are presented and evaluated, especially in the field of oncological diseases.
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Affiliation(s)
- Robert Kaplánek
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Zdeněk Kejík
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Jan Hajduch
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Kateřina Veselá
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Kateřina Kučnirová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Markéta Skaličková
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Anna Venhauerová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Božena Hosnedlová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Róbert Hromádka
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Petr Dytrych
- 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 121 08 Prague, Czech Republic
| | - Petr Novotný
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Nikita Abramenko
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - Veronika Antonyová
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic
| | - David Hoskovec
- 1st Department of Surgery-Department of Abdominal, Thoracic Surgery and Traumatology, First Faculty of Medicine, Charles University and General University Hospital, U Nemocnice 2, 121 08 Prague, Czech Republic
| | - Petr Babula
- Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Michal Masařík
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic; Department of Pathological Physiology, Faculty of Medicine, Masaryk University, Kamenice 5, CZ-625 00 Brno, Czech Republic
| | - Pavel Martásek
- Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic.
| | - Milan Jakubek
- BIOCEV, First Faculty of Medicine, Charles University, Průmyslová 595, 252 50 Vestec, Czech Republic; Department of Paediatrics and Inherited Metabolic Disorders, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 455/2, 128 08 Prague, Czech Republic.
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6
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Qin H, Liu J, Fang C, Deng Y, Zhang Y. DNA methylation: The epigenetic mechanism of Alzheimer's disease. IBRAIN 2023; 9:463-472. [PMID: 38680511 PMCID: PMC11045197 DOI: 10.1002/ibra.12121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 07/11/2023] [Accepted: 07/18/2023] [Indexed: 05/01/2024]
Abstract
Nowadays, with the development of the social health care system, there is an increasing trend towards an aging society. The incidence of Alzheimer's disease (AD) is also on the rise. AD is a kind of neurodegenerative disease that can be found in any age group. For years, scientists have been committing to discovering the cause of AD. DNA methylation is one of the most common epigenetic mechanisms in mammals and plays a vital role in the pathogenesis of several diseases, including tumors. Studying chemical changes in the epigenome, or DNA methylation can help us understand the effects of our environment and life on diseases, such as smoking, depression, and menopause, which may affect people's chances of developing Alzheimer's or other diseases. Recent studies have identified some crucial genes like ANK1, RHBDF2, ABCA7, and BIN1, linking DNA methylation to AD. This review focuses on elucidating the relationship between DNA methylation and the pathogenesis of AD and provides an outlook on possible targeted therapeutic modalities.
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Affiliation(s)
- Hao‐Yue Qin
- Department of AnesthesiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Jiao‐Yan Liu
- Department of AnesthesiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Chang‐Le Fang
- Faculty of Health SciencesUniversity of AdelaideMelbourneVICAustralia
| | - Yan‐Ping Deng
- Department of AnesthesiologySouthwest Medical UniversityLuzhouSichuanChina
| | - Ying Zhang
- State Key Laboratories for Quality Research in Chinese Medicines, Faculty of PharmacyMacau University of Science and TechnologyMacauChina
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Iverson TM, Singh PK, Cecchini G. An evolving view of complex II-noncanonical complexes, megacomplexes, respiration, signaling, and beyond. J Biol Chem 2023; 299:104761. [PMID: 37119852 PMCID: PMC10238741 DOI: 10.1016/j.jbc.2023.104761] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/20/2023] [Accepted: 04/22/2023] [Indexed: 05/01/2023] Open
Abstract
Mitochondrial complex II is traditionally studied for its participation in two key respiratory processes: the electron transport chain and the Krebs cycle. There is now a rich body of literature explaining how complex II contributes to respiration. However, more recent research shows that not all of the pathologies associated with altered complex II activity clearly correlate with this respiratory role. Complex II activity has now been shown to be necessary for a range of biological processes peripherally related to respiration, including metabolic control, inflammation, and cell fate. Integration of findings from multiple types of studies suggests that complex II both participates in respiration and controls multiple succinate-dependent signal transduction pathways. Thus, the emerging view is that the true biological function of complex II is well beyond respiration. This review uses a semichronological approach to highlight major paradigm shifts that occurred over time. Special emphasis is given to the more recently identified functions of complex II and its subunits because these findings have infused new directions into an established field.
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Affiliation(s)
- T M Iverson
- Departments of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA; Departments of Biochemistry, Vanderbilt University, Nashville, Tennessee, USA; Center for Structural Biology, Vanderbilt University, Nashville, Tennessee, USA; Vanderbilt Institute of Chemical Biology, Vanderbilt University, Nashville, Tennessee, USA.
| | - Prashant K Singh
- Departments of Pharmacology, Vanderbilt University, Nashville, Tennessee, USA; Center for Structural Biology, Vanderbilt University, Nashville, Tennessee, USA
| | - Gary Cecchini
- Molecular Biology Division, San Francisco VA Health Care System, San Francisco, California, USA; Department of Biochemistry & Biophysics, University of California, San Francisco, California, USA.
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Protasoni M, Serrano M. Targeting Mitochondria to Control Ageing and Senescence. Pharmaceutics 2023; 15:352. [PMID: 36839673 PMCID: PMC9960816 DOI: 10.3390/pharmaceutics15020352] [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: 11/21/2022] [Revised: 12/22/2022] [Accepted: 12/26/2022] [Indexed: 01/24/2023] Open
Abstract
Ageing is accompanied by a progressive impairment of cellular function and a systemic deterioration of tissues and organs, resulting in increased vulnerability to multiple diseases. Here, we review the interplay between two hallmarks of ageing, namely, mitochondrial dysfunction and cellular senescence. The targeting of specific mitochondrial features in senescent cells has the potential of delaying or even reverting the ageing process. A deeper and more comprehensive understanding of mitochondrial biology in senescent cells is necessary to effectively face this challenge. Here, we discuss the main alterations in mitochondrial functions and structure in both ageing and cellular senescence, highlighting the differences and similarities between the two processes. Moreover, we describe the treatments available to target these pathways and speculate on possible future directions of anti-ageing and anti-senescence therapies targeting mitochondria.
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Affiliation(s)
- Margherita Protasoni
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
| | - Manuel Serrano
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Institute of Science and Technology (BIST), 08028 Barcelona, Spain
- Catalan Institution for Research and Advanced Studies (ICREA), 08010 Barcelona, Spain
- Cambridge Institute of Science, Altos Labs, Granta Park, Cambridge CB21 6GP, UK
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9
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Chatterjee N, Kim C, Im J, Kim S, Choi J. Mixture and individual effects of benzene, toluene, and formaldehyde in zebrafish (Danio rerio) development: Metabolomics, epigenetics, and behavioral approaches. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2023; 97:104031. [PMID: 36460283 DOI: 10.1016/j.etap.2022.104031] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 11/24/2022] [Accepted: 11/28/2022] [Indexed: 06/17/2023]
Abstract
In this study, we aimed to investigate the potential hazards of volatile organic compounds (VOCs) on the development of zebrafish. To this end, zebrafish embryos were exposed in two different windows, either alone or in a mixture with VOCs (benzene, toluene, and formaldehyde) [EW1: 4 ± 2 h post-fertilization (hpf) to 24 hpf and EW2: 24 ± 2 hpf to 48 hpf]. Alterations in global DNA methylation and related gene expression, behavioral responses, and stress-related gene expression were observed. In addition to these endpoints, non-targeted NMR-based global metabolomics followed by pathway analysis showed significant changes in the metabolism of various amino acids during VOC exposure. Regardless of the analyzed endpoints, toluene was the most toxic chemical when exposed individually and possibly played the most pivotal role in the mixture treatment conditions. In conclusion, our data show that exposure to VOCs at embryonic developmental stages causes physiological perturbations and adverse outcomes at later life stages.
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Affiliation(s)
- Nivedita Chatterjee
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea
| | - Chanhee Kim
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea
| | - Jeongeun Im
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea
| | - Suhkmann Kim
- Department of Chemistry, Center for Proteome Biophysics and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, South Korea
| | - Jinhee Choi
- School of Environmental Engineering, University of Seoul, 163 Siripdaero, Dongdaemun-gu, Seoul 02504, South Korea.
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Wu F, Xie X, Li G, Bao D, Li H, Wu G, Lai Y, Xing Y, Ouyang P, Chen G, Wang Z, Lai C. AKG induces cell apoptosis by inducing reactive oxygen species-mediated endoplasmic reticulum stress and by suppressing PI3K/AKT/mTOR-mediated autophagy in renal cell carcinoma. ENVIRONMENTAL TOXICOLOGY 2023; 38:17-27. [PMID: 36111830 DOI: 10.1002/tox.23658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 08/23/2022] [Accepted: 08/30/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Alpha-ketoglutarate (AKG) or 2-oxoglutarate is a key substance in the tricarboxylic acid cycle (TCA) and has been known to play an important role in cancerogenesis and tumor progression. Renal cell carcinoma (RCC) is the most common type of kidney cancer, and it has a high mortality rate. Autophagy is a phenomenon of self-digestion, and its significance in tumor genesis and progression remains debatable. However, the mechanisms underlying how AKG regulates autophagy in RCC remain unknown. Thus, the purpose of this study was to assess the therapeutic efficacy of AKG and its molecular mechanisms. METHODS RCC cell lines 786O and ACHN were treated with varying doses of AKG for 24 h. CCK-8, Transwell, and scratch wound healing assays were utilized to evaluate the role of AKG in RCC cells. Autophagy protein and PI3K/AKT/mTOR pathway protein levels were analyzed by Western blot. RESULTS AKG inhibited the proliferation of RCC cells 786O and ACHN in a dose-dependent manner according to the CCK-8 assay. In addition, flow cytometry and Western blot analysis revealed that AKG dose-dependently triggered apoptosis and autophagy in RCC cells. By promoting cell apoptosis and autophagy, AKG dramatically suppressed tumor growth. Mechanistically, AKG induces autophagy by promoting ROS generation and inhibiting the PI3K/AKT/mTOR pathway. CONCLUSIONS The anti-tumor effect of AKG promotes autophagy in renal cancer cells via mediating ROS-PI3K/Akt/mTOR, and may be used as a potential anticancer drug for kidney cancer.
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Affiliation(s)
- Fan Wu
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Xuexia Xie
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Guoliang Li
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Dongping Bao
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Haomin Li
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Guohao Wu
- Department of Urology, The Sixth Affiliated Hospital of Jinan University, Dongguan, China
| | - Yiqi Lai
- University of South China, Hengyang, China
| | - Yaping Xing
- Shenzhen Hospital of University of Hong Kong, Shenzhen, China
| | - Peng Ouyang
- Department of General Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, China
| | - Guo Chen
- Department of Urology, The Sixth Affiliated Hospital of Jinan University, Dongguan, China
- Department of Medical Biochemistry and Molecular Biology, School of Medicine, Jinan University, Guangzhou, China
- School of Biopharmacy, China Pharmaceutical University, Nanjing, China
| | - Zhifeng Wang
- Department of Urology, Henan Provincial People's Hospital, Zhengzhou University People's Hospital, Henan University People's Hospital, Zhengzhou, China
| | - Caiyong Lai
- Department of Urology, The First Affiliated Hospital of Jinan University, Guangzhou, China
- Department of Urology, The Sixth Affiliated Hospital of Jinan University, Dongguan, China
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11
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Nunn AVW, Guy GW, Brysch W, Bell JD. Understanding Long COVID; Mitochondrial Health and Adaptation-Old Pathways, New Problems. Biomedicines 2022; 10:3113. [PMID: 36551869 PMCID: PMC9775339 DOI: 10.3390/biomedicines10123113] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/04/2022] Open
Abstract
Many people infected with the SARS-CoV-2 suffer long-term symptoms, such as "brain fog", fatigue and clotting problems. Explanations for "long COVID" include immune imbalance, incomplete viral clearance and potentially, mitochondrial dysfunction. As conditions with sub-optimal mitochondrial function are associated with initial severity of the disease, their prior health could be key in resistance to long COVID and recovery. The SARs virus redirects host metabolism towards replication; in response, the host can metabolically react to control the virus. Resolution is normally achieved after viral clearance as the initial stress activates a hormetic negative feedback mechanism. It is therefore possible that, in some individuals with prior sub-optimal mitochondrial function, the virus can "tip" the host into a chronic inflammatory cycle. This might explain the main symptoms, including platelet dysfunction. Long COVID could thus be described as a virally induced chronic and self-perpetuating metabolically imbalanced non-resolving state characterised by mitochondrial dysfunction, where reactive oxygen species continually drive inflammation and a shift towards glycolysis. This would suggest that a sufferer's metabolism needs to be "tipped" back using a stimulus, such as physical activity, calorie restriction, or chemical compounds that mimic these by enhancing mitochondrial function, perhaps in combination with inhibitors that quell the inflammatory response.
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Affiliation(s)
- Alistair V. W. Nunn
- Research Centre for Optimal Health, Department of Life Sciences, University of Westminster, London W1W 6UW, UK
| | - Geoffrey W. Guy
- The Guy Foundation, Chedington Court, Beaminster, Dorset DT8 3HY, UK
| | | | - Jimmy D. Bell
- Research Centre for Optimal Health, Department of Life Sciences, University of Westminster, London W1W 6UW, UK
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12
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Lee H, Kim DW. Deletion of ATAD3A inhibits osteogenesis by impairing mitochondria structure and function in pre-osteoblast. Dev Dyn 2022; 251:1982-2000. [PMID: 36000457 DOI: 10.1002/dvdy.528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/22/2022] [Accepted: 08/08/2022] [Indexed: 01/30/2023] Open
Abstract
BACKGROUND ATPase family AAA-domain containing protein 3A (ATAD3A) is a nuclear encoded mitochondrial membrane protein that spans inner and outer membrane, and it has been shown to regulate mitochondrial dynamics and cholesterol metabolism. Since the mitochondrial functions have been implicated for osteogenic differentiation, a role of ATAD3A in skeletal development has been investigated. RESULTS Mesenchyme-specific ATAD3 knockout mice displayed severe defects in skeletal development. Additionally, osteoblast-specific deletion of ATAD3 in mice caused significant reduction in bone mass, while cartilage-specific ATAD3 knockout mice did not show any significant phenotypes. Consistent with these in vivo findings, ATAD3A knockdown impaired mitochondrial morphology and function in calvarial pre-osteoblast cultures, which, in turn, suppressed osteogenic differentiation in vitro. CONCLUSIONS The current findings suggest that ATAD3A plays a crucial role in mitochondria homeostasis, which is required for osteogenic differentiation during skeletal development.
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Affiliation(s)
- Hyeri Lee
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Dae-Won Kim
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
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13
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Lin HY, Yang YN, Chen YF, Huang TY, Crawford DR, Chuang HY, Chin YT, Chu HR, Li ZL, Shih YJ, Chen YR, Yang YCSH, Ho Y, Davis PJ, Whang-Peng J, Wang K. 2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-Glucoside improves female ovarian aging. Front Cell Dev Biol 2022; 10:862045. [PMID: 36111333 PMCID: PMC9469098 DOI: 10.3389/fcell.2022.862045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 08/02/2022] [Indexed: 11/18/2022] Open
Abstract
Reduced fertility associated with normal aging may reflect the over-maturity of oocytes. It is increasingly important to reduce aging-induced infertility since recent trends show people marrying at later ages. 2,3,5,4′-Tetrahydroxystilbene-2-O-β-D-glucoside (THSG), a polyphenol extracted from Polygonum multiflorum, has been reported to have anti-inflammatory and anti-aging properties. To evaluate whether THSG can reduce aging-related ovarian damage in a female mouse model of aging, THSG was administered by gavage at a dose of 10 mg/kg twice weekly, starting at 4 weeks of age in a group of young mice. In addition, the effect of THSG in a group of aged mice was also studied in mice starting at 24 weeks of age. The number of oocytes in the THSG-fed group was higher than in the untreated control group. Although the percentage of secondary polar bodies (PB2) decreased during aging in the THSG-fed group, it decreased much more slowly than in the age-matched control group. THSG administration increased the quality of ovaries in young mice becoming aged. Western blotting analyses also indicated that CYP19, PR-B, and ER-β expressions were significantly increased in 36-week-old mice. THSG also increased oocyte numbers in aged mice compared to mice without THSG fed. Studies of qPCR and immunohistochemistry (IHC) analyses of ovaries in the aged mice groups were conducted. THSG increased gene expression of anti-Müllerian hormone (AMH), a biomarker of oocyte number, and protein accumulation in 40-week-old mice. THSG increased the expression of pgc1α and atp6, mitochondrial biogenesis-related genes, and their protein expression. THSG also attenuated the fading rate of CYP11a and CYP19 associated with sex hormone synthesis. And THSG maintains a high level of ER-β expression, thereby enhancing the sensitivity of estrogen. Our findings indicated that THSG increased or extended gene expression involved in ovarian maintenance and rejuvenation in young and aged mice. On the other hand, THSG treatments significantly maintained oocyte quantity and quality in both groups of young and aged mice compared to each age-matched control group. In conclusion, THSG can delay aging-related menopause, and the antioxidant properties of THSG may make it suitable for preventing aging-induced infertility.
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Affiliation(s)
- Hung-Yun Lin
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei, Taiwan
- Traditional Herbal Medicine Research Center of Taipei Medical University Hospital, Taipei Medical University, Taipei, Taiwan
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY, United States
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Yung-Ning Yang
- School of Medicine, I-Shou University, Kaohsiung, Taiwan
- Department of Pediatrics, E-DA Hospital, Kaohsiung, Taiwan
| | - Yi-Fong Chen
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Tung-Yung Huang
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
| | - Dana R. Crawford
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY, United States
| | - Hui-Yu Chuang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yu-Tang Chin
- School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hung-Ru Chu
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Medical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Zi-Lin Li
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Medical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Ya-Jung Shih
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Medical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Yi-Ru Chen
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Graduate Institute of Nanomedicine and Medical Engineering, College of Medical Engineering, Taipei Medical University, Taipei, Taiwan
| | - Yu-Chen S. H. Yang
- Joint Biobank, Office of Human Research, Taipei Medical University, Taipei, Taiwan
| | - Yih Ho
- School of Pharmacy, Taipei Medical University, Taipei, Taiwan
- *Correspondence: Yih Ho,
| | - Paul J. Davis
- Pharmaceutical Research Institute, Albany College of Pharmacy and Health Sciences, Albany, NY, United States
- Department of Medicine, Albany Medical College, Albany, NY, United States
| | - Jacqueline Whang-Peng
- Graduate Institute of Cancer Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei, Taiwan
- Cancer Center, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan
| | - Kuan Wang
- Graduate Institute of Nanomedicine and Medical Engineering, College of Medical Engineering, Taipei Medical University, Taipei, Taiwan
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14
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Seale K, Horvath S, Teschendorff A, Eynon N, Voisin S. Making sense of the ageing methylome. Nat Rev Genet 2022; 23:585-605. [PMID: 35501397 DOI: 10.1038/s41576-022-00477-6] [Citation(s) in RCA: 66] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/18/2022] [Indexed: 12/22/2022]
Abstract
Over time, the human DNA methylation landscape accrues substantial damage, which has been associated with a broad range of age-related diseases, including cardiovascular disease and cancer. Various age-related DNA methylation changes have been described, including at the level of individual CpGs, such as differential and variable methylation, and at the level of the whole methylome, including entropy and correlation networks. Here, we review these changes in the ageing methylome as well as the statistical tools that can be used to quantify them. We detail the evidence linking DNA methylation to ageing phenotypes and the longevity strategies aimed at altering both DNA methylation patterns and machinery to extend healthspan and lifespan. Lastly, we discuss theories on the mechanistic causes of epigenetic ageing.
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Affiliation(s)
- Kirsten Seale
- Institute for Health and Sport (iHeS), Victoria University, Footscray, Melbourne, Victoria, Australia
| | - Steve Horvath
- Department of Human Genetics, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA.,Altos Labs, San Diego, CA, USA
| | - Andrew Teschendorff
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China.,UCL Cancer Institute, University College London, London, UK
| | - Nir Eynon
- Institute for Health and Sport (iHeS), Victoria University, Footscray, Melbourne, Victoria, Australia.
| | - Sarah Voisin
- Institute for Health and Sport (iHeS), Victoria University, Footscray, Melbourne, Victoria, Australia.
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15
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Chen J, Wu X, Wang Y, Pan Y, Ren Y, Nakabeppu Y, Fan Y, Wang Y. Mutyh deficiency downregulates mitochondrial fusion proteins and causes cardiac dysfunction via α-ketoglutaric acid reduction with oxidative stress. Free Radic Res 2022; 56:129-142. [DOI: 10.1080/10715762.2022.2036336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Jingwen Chen
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Xin Wu
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Yanyi Wang
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Yunfeng Pan
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Yan Ren
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Yusaku Nakabeppu
- Division of Neurofunctional Genomics, Department of Immunobiology and Neuroscience, Medical Institute of Bioregulation, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Yimei Fan
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
| | - Yaping Wang
- Department of Medical Genetics, Nanjing University School of Medicine, Nanjing 210093, China
- Jiangsu Key Laboratory of Molecular Medicine, Nanjing University, Nanjing 210093, China
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16
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Restraint of Fumarate Accrual by HIF-1α Preserves miR-27a-Mediated Limitation of Interleukin 10 during Infection of Macrophages by Histoplasma capsulatum. mBio 2021; 12:e0271021. [PMID: 34749531 PMCID: PMC8576535 DOI: 10.1128/mbio.02710-21] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Hypoxia-inducible factor 1α (HIF-1α) regulates the immunometabolic phenotype of macrophages, including the orchestration of inflammatory and antimicrobial processes. Macrophages deficient in HIF-1α produce excessive quantities of the anti-inflammatory cytokine interleukin 10 (IL-10) during infection with the intracellular fungal pathogen Histoplasma capsulatum (R. A. Fecher, M. C. Horwath, D. Friedrich, J. Rupp, G. S. Deepe, J Immunol 197:565–579, 2016, https://doi.org/10.4049/jimmunol.1600342). Thus, the macrophage fails to become activated in response to proinflammatory cytokines and remains the intracellular niche of the pathogen. Here, we identify the tricarboxylic acid (TCA) cycle metabolite fumarate as the driver of IL-10 during macrophage infection with H. capsulatum in the absence of HIF-1α. Accumulation of fumarate reduced expression of a HIF-1α-dependent microRNA (miRNA), miR-27a, known to mediate decay of Il10 mRNA. Inhibition of fumarate accrual in vivo limited IL-10 and fungal growth. Our data demonstrate the critical role of HIF-1α in shaping appropriate TCA cycle activity in response to infection and highlight the consequences of a dysregulated immunometabolic response.
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17
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Szczurek-Janicka P, Ropka-Molik K, Oczkowicz M, Orczewska-Dudek S, Pietras M, Pieszka M. Expression Profile of Brain Aging and Metabolic Function are Altered by Resveratrol or α-Ketoglutarate Supplementation in Rats Fed a High-Fat Diet. POL J FOOD NUTR SCI 2021. [DOI: 10.31883/pjfns/139081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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18
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Pleiotropic effects of alpha-ketoglutarate as a potential anti-ageing agent. Ageing Res Rev 2021; 66:101237. [PMID: 33340716 DOI: 10.1016/j.arr.2020.101237] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2020] [Revised: 10/23/2020] [Accepted: 12/14/2020] [Indexed: 02/07/2023]
Abstract
An intermediate of tricarboxylic acid cycle alpha-ketoglutarate (AKG) is involved in pleiotropic metabolic and regulatory pathways in the cell, including energy production, biosynthesis of certain amino acids, collagen biosynthesis, epigenetic regulation of gene expression, regulation of redox homeostasis, and detoxification of hazardous substances. Recently, AKG supplement was found to extend lifespan and delay the onset of age-associated decline in experimental models such as nematodes, fruit flies, yeasts, and mice. This review summarizes current knowledge on metabolic and regulatory functions of AKG and its potential anti-ageing effects. Impact on epigenetic regulation of ageing via being an obligate substrate of DNA and histone demethylases, direct antioxidant properties, and function as mimetic of caloric restriction and hormesis-induced agent are among proposed mechanisms of AKG geroprotective action. Due to influence on mitochondrial respiration, AKG can stimulate production of reactive oxygen species (ROS) by mitochondria. According to hormesis hypothesis, moderate stimulation of ROS production could have rather beneficial biological effects, than detrimental ones, because of the induction of defensive mechanisms that improve resistance to stressors and age-related diseases and slow down functional senescence. Discrepancies found in different models and limitations of AKG as a geroprotective drug are discussed.
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19
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Guan Y, Hasipek M, Tiwari AD, Maciejewski JP, Jha BK. TET-dioxygenase deficiency in oncogenesis and its targeting for tumor-selective therapeutics. Semin Hematol 2021; 58:27-34. [PMID: 33509440 PMCID: PMC7938524 DOI: 10.1053/j.seminhematol.2020.12.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/04/2020] [Accepted: 12/19/2020] [Indexed: 02/08/2023]
Abstract
TET2 is one of the most frequently mutated genes in myeloid neoplasms. TET2 loss-of-function perturbs myeloid differentiation and causes clonal expansion. Despite extensive knowledge regarding biochemical mechanisms underlying distorted myeloid differentiation, targeted therapies are lagging. Here we review known biochemical mechanisms and candidate therapies that emerge from this. Specifically, we discuss the potential utility of vitamin C to compensate for TET-dioxygenase deficiency, to thereby restore the biochemical function. An alternative approach exploits the TET-deficient state for synthetic lethality, exploiting the fact that a minimum level of TET-dioxygenase activity is required for cell survival, rendering TET2-mutant malignant cells selectively vulnerable to inhibitors of TET-function.
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Affiliation(s)
- Yihong Guan
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Metis Hasipek
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Anand D Tiwari
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Jaroslaw P Maciejewski
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH
| | - Babal K Jha
- Department of Translational Hematology and Oncology Research, Taussig Cancer Institute, Cleveland Clinic, Cleveland, OH.
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20
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TCA cycle signalling and the evolution of eukaryotes. Curr Opin Biotechnol 2020; 68:72-88. [PMID: 33137653 DOI: 10.1016/j.copbio.2020.09.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 12/19/2022]
Abstract
A major question remaining in the field of evolutionary biology is how prokaryotic organisms made the leap to complex eukaryotic life. The prevailing theory depicts the origin of eukaryotic cell complexity as emerging from the symbiosis between an α-proteobacterium, the ancestor of present-day mitochondria, and an archaeal host (endosymbiont theory). A primary contribution of mitochondria to eukaryogenesis has been attributed to the mitochondrial genome, which enabled the successful internalisation of bioenergetic membranes and facilitated remarkable genome expansion. It has also been postulated that a key contribution of the archaeal host during eukaryogenesis was in providing 'archaeal histones' that would enable compaction and regulation of an expanded genome. Yet, how the communication between the host and the symbiont evolved is unclear. Here, we propose an evolutionary concept in which mitochondrial TCA cycle signalling was also a crucial player during eukaryogenesis enabling the dynamic control of an expanded genome via regulation of DNA and histone modifications. Furthermore, we discuss how TCA cycle remodelling is a common evolutionary strategy invoked by eukaryotic organisms to coordinate stress responses and gene expression programmes, with a particular focus on the TCA cycle-derived metabolite itaconate.
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21
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Liu H, Zhang H, Zhang Y, Xu S, Zhao H, He H, Liu X. Modeling mtDNA hypermethylation vicious circle mediating Aβ-induced endothelial damage memory in HCMEC/D3 cell. Aging (Albany NY) 2020; 12:18343-18362. [PMID: 32986015 PMCID: PMC7585070 DOI: 10.18632/aging.103699] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 07/06/2020] [Indexed: 01/24/2023]
Abstract
It is well accepted that accumulation of beta-amyloid (Aβ) may involve in endothelial dysfunction during the Alzheimer's disease (AD) progression. However, cerebrovascular function cannot be improved by removing Aβ in AD animal models. The reasons for these paradoxical results still remain to be further investigated. We hypothesize that Aβ exposure may cause persistence damage to cerebral endothelial cell even after Aβ is removed (termed as cerebrovascular endothelial damage memory) mitochondria DNA (mtDNA) hypermethylation is assumed to be involved in this process. The aim of this study is to investigate whether Aβ exposure induces cerebrovascular endothelial damage memory in endothelial cells and mtDNA hypermethylation involves in this process. The hCMEC/D3 cell is treated with Aβ1-42 for 12h and then withdraw Aβ1-42 for another 12h incubation to investigate whether cerebrovascular endothelial damage memory exists in endothelial cells. The levels of mtDNA methylation and cell vitality were not improved by removing Aβ1-42 after 12h Aβ1-42 incubation which suggested that the cerebrovascular endothelial damage memory may exist in endothelial cells. Kinetics model analysis suggested that mtDNA hypermethylation involves in initiating the cerebrovascular endothelial damage memory otherwise α-oxoglutarate (AKG) exhaustion plays a vital role in maintaining this process. DNA methylation inhibitor decitabine and AKG supplement may relieve the cerebrovascular endothelial damage memory dose dependently. This study provides a novel feature of cerebrovascular endothelial damage induced by Aβ.
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Affiliation(s)
- HaoChen Liu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Hong Zhang
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Yixuan Zhang
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Sheng Xu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Huimin Zhao
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - Hua He
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
| | - XiaoQuan Liu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing 210009, China
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22
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Bornstein R, Gonzalez B, Johnson SC. Mitochondrial pathways in human health and aging. Mitochondrion 2020; 54:72-84. [PMID: 32738358 PMCID: PMC7508824 DOI: 10.1016/j.mito.2020.07.007] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 12/27/2022]
Abstract
Mitochondria are eukaryotic organelles known best for their roles in energy production and metabolism. While often thought of as simply the 'powerhouse of the cell,' these organelles participate in a variety of critical cellular processes including reactive oxygen species (ROS) production, regulation of programmed cell death, modulation of inter- and intracellular nutrient signaling pathways, and maintenance of cellular proteostasis. Disrupted mitochondrial function is a hallmark of eukaryotic aging, and mitochondrial dysfunction has been reported to play a role in many aging-related diseases. While mitochondria are major players in human diseases, significant questions remain regarding their precise mechanistic role. In this review, we detail mechanisms by which mitochondrial dysfunction participate in disease and aging based on findings from model organisms and human genetics studies.
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Affiliation(s)
| | - Brenda Gonzalez
- Department of Genetics, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Simon C Johnson
- Department of Neurology, University of Washington, Seattle, WA, USA; Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA, USA; Center for Integrative Brain Research, Seattle Children's Research Institute, Seattle, WA, USA.
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23
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Bustelo M, Barkhuizen M, van den Hove DLA, Steinbusch HWM, Bruno MA, Loidl CF, Gavilanes AWD. Clinical Implications of Epigenetic Dysregulation in Perinatal Hypoxic-Ischemic Brain Damage. Front Neurol 2020; 11:483. [PMID: 32582011 PMCID: PMC7296108 DOI: 10.3389/fneur.2020.00483] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 05/04/2020] [Indexed: 12/18/2022] Open
Abstract
Placental and fetal hypoxia caused by perinatal hypoxic-ischemic events are major causes of stillbirth, neonatal morbidity, and long-term neurological sequelae among surviving neonates. Brain hypoxia and associated pathological processes such as excitotoxicity, apoptosis, necrosis, and inflammation, are associated with lasting disruptions in epigenetic control of gene expression contributing to neurological dysfunction. Recent studies have pointed to DNA (de)methylation, histone modifications, and non-coding RNAs as crucial components of hypoxic-ischemic encephalopathy (HIE). The understanding of epigenetic dysregulation in HIE is essential in the development of new clinical interventions for perinatal HIE. Here, we summarize our current understanding of epigenetic mechanisms underlying the molecular pathology of HI brain damage and its clinical implications in terms of new diagnostic, prognostic, and therapeutic tools.
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Affiliation(s)
- Martín Bustelo
- Department of Pediatrics, Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands.,Instituto de Ciencias Biomédicas, Facultad de Ciencias Médicas, Universidad Católica de Cuyo, San Juan, Argentina.,Laboratorio de Neuropatología Experimental, Facultad de Medicina, Instituto de Biología Celular y Neurociencias "Prof. E. De Robertis" (IBCN), Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina
| | - Melinda Barkhuizen
- Department of Pediatrics, Maastricht University Medical Center (MUMC), Maastricht, Netherlands
| | - Daniel L A van den Hove
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands.,Department of Psychiatry, Psychosomatics and Psychotherapy, University of Würzburg, Würzburg, Germany
| | - Harry Wilhelm M Steinbusch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
| | - Martín A Bruno
- Instituto de Ciencias Biomédicas, Facultad de Ciencias Médicas, Universidad Católica de Cuyo, San Juan, Argentina
| | - C Fabián Loidl
- Instituto de Ciencias Biomédicas, Facultad de Ciencias Médicas, Universidad Católica de Cuyo, San Juan, Argentina.,Laboratorio de Neuropatología Experimental, Facultad de Medicina, Instituto de Biología Celular y Neurociencias "Prof. E. De Robertis" (IBCN), Universidad de Buenos Aires, CONICET, Buenos Aires, Argentina
| | - Antonio W Danilo Gavilanes
- Department of Pediatrics, Maastricht University Medical Center (MUMC), Maastricht, Netherlands.,Facultad de Ciencias Médicas, Instituto de Investigación e Innovación de Salud Integral, Universidad Católica de Santiago de Guayaquil, Guayaquil, Ecuador
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24
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Barcena de Arellano ML, Pozdniakova S, Kühl AA, Baczko I, Ladilov Y, Regitz-Zagrosek V. Sex differences in the aging human heart: decreased sirtuins, pro-inflammatory shift and reduced anti-oxidative defense. Aging (Albany NY) 2020; 11:1918-1933. [PMID: 30964749 PMCID: PMC6503880 DOI: 10.18632/aging.101881] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Accepted: 03/20/2019] [Indexed: 12/11/2022]
Abstract
Aging is associated with increased inflammation and alterations in mitochondrial biogenesis, which promote the development of cardiovascular diseases. Emerging evidence suggests a role for sirtuins, which are NAD+-dependent deacetylases, in the regulation of cardiovascular inflammation and mitochondrial biogenesis. Sirtuins are regulated by sex or sex hormones and are decreased during aging in animal models. We hypothesized that age-related alterations in cardiac Sirt1 and Sirt3 occur in the human heart and examined whether these changes are associated with a decrease in anti-oxidative defense, inflammatory state and mitochondrial biogenesis. Using human ventricular tissue from young (17-40 years old) and old (50-68 years old) individuals, we found significantly lower Sirt1 and Sirt3 expression in old female hearts than in young female hearts. Additionally, lower expression of the anti-oxidative protein SOD2 was observed in old female hearts than in young female hearts. Aging in female hearts was associated with a significant increase in the number of cardiac macrophages and pro-inflammatory cytokines, as well as NF-kB upregulation, indicating a pro-inflammatory shift. Aging-associated pathways in the male hearts were different, and no changes in Sirt1 and Sirt3 or cardiovascular inflammation were observed. In conclusion, the present study revealed a female sex-specific downregulation of Sirt1 and Sirt3 in aged hearts, as well as a decline in mitochondrial anti-oxidative defense and a pro-inflammatory shift in old female hearts but not in male hearts.
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Affiliation(s)
- Maria Luisa Barcena de Arellano
- Institute of Gender in Medicine and Center for Cardiovascular Research, Charité University Hospital, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin Partner Site, Berlin, Germany
| | - Sofya Pozdniakova
- Institute of Gender in Medicine and Center for Cardiovascular Research, Charité University Hospital, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin Partner Site, Berlin, Germany
| | - Anja A Kühl
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, iPATH.Berlin-Immunopathology for Experimental Models, Berlin, Germany
| | - Istvan Baczko
- Department of Pharmacology and Pharmacotherapy, Interdisciplinary Excellence Centre, University of Szeged, Szeged, Hungary
| | - Yury Ladilov
- Institute of Gender in Medicine and Center for Cardiovascular Research, Charité University Hospital, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin Partner Site, Berlin, Germany
| | - Vera Regitz-Zagrosek
- Institute of Gender in Medicine and Center for Cardiovascular Research, Charité University Hospital, Berlin, Germany.,DZHK (German Centre for Cardiovascular Research), Berlin Partner Site, Berlin, Germany
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25
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Antonyová V, Kejík Z, Brogyányi T, Kaplánek R, Pajková M, Talianová V, Hromádka R, Masařík M, Sýkora D, Mikšátková L, Martásek P, Jakubek M. Role of mtDNA disturbances in the pathogenesis of Alzheimer's and Parkinson's disease. DNA Repair (Amst) 2020; 91-92:102871. [PMID: 32502755 DOI: 10.1016/j.dnarep.2020.102871] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/08/2020] [Accepted: 05/09/2020] [Indexed: 12/11/2022]
Abstract
Neurodegenerative diseases (e.g. Alzheimer's and Parkinson's disease) are becoming increasingly problematic to healthcare systems. Therefore, their underlying mechanisms are trending topics of study in medicinal research. Numerous studies have evidenced a strong association between mitochondrial DNA disturbances (e.g. oxidative damage, mutations, and methylation shifts) and the initiation and progression of neurodegenerative diseases. Therefore, this review discusses the risk and development of neurodegenerative diseases in terms of disturbances in mitochondrial DNA and as a part of a complex ecosystem that includes other important mechanisms (e.g. neuroinflammation and the misfolding and aggregation of amyloid-β peptides, α-synuclein, and tau proteins). In addition, the influence of individual mitochondrial DNA haplogroups on the risk and development of neurodegenerative diseases is also described and discussed.
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Affiliation(s)
- Veronika Antonyová
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Zdeněk Kejík
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Dejvice, Czech Republic
| | - Tereza Brogyányi
- Depertment of Pathological Physiology, First Faculty of Medicine, Charles University and General University Hospital in Prague, Ke Karlovu 2, 121 00 Prague 2, Czech Republic
| | - Robert Kaplánek
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic; Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Dejvice, Czech Republic
| | - Martina Pajková
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Veronika Talianová
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Róbert Hromádka
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - Michal Masařík
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic
| | - David Sýkora
- BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic; Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Dejvice, Czech Republic
| | - Lucie Mikšátková
- BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic; Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Dejvice, Czech Republic
| | - Pavel Martásek
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic.
| | - Milan Jakubek
- Department of Pediatrics and Adolescent Medicine, First Faculty of Medicine, Charles University and General University Hospital in Prague, Kateřinská 32, 121 08 Prague 2, Czech Republic; BIOCEV, First Faculty of Medicine, Charles University, Kateřinská 32, 121 08 Prague 2, Czech Republic; Department of Analytical Chemistry, University of Chemistry and Technology Prague, Technická 5, 166 28 Prague 6, Dejvice, Czech Republic.
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26
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Mohammed SA, Ambrosini S, Lüscher T, Paneni F, Costantino S. Epigenetic Control of Mitochondrial Function in the Vasculature. Front Cardiovasc Med 2020; 7:28. [PMID: 32195271 PMCID: PMC7064473 DOI: 10.3389/fcvm.2020.00028] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 02/19/2020] [Indexed: 12/24/2022] Open
Abstract
The molecular signatures of epigenetic regulation and chromatin architecture are emerging as pivotal regulators of mitochondrial function. Recent studies unveiled a complex intersection among environmental factors, epigenetic signals, and mitochondrial metabolism, ultimately leading to alterations of vascular phenotype and increased cardiovascular risk. Changing environmental conditions over the lifetime induce covalent and post-translational chemical modification of the chromatin template which sensitize the genome to establish new transcriptional programs and, hence, diverse functional states. On the other hand, metabolic alterations occurring in mitochondria affect the availability of substrates for chromatin-modifying enzymes, thus leading to maladaptive epigenetic signatures altering chromatin accessibility and gene transcription. Indeed, several components of the epigenetic machinery require intermediates of cellular metabolism (ATP, AcCoA, NADH, α-ketoglutarate) for enzymatic function. In the present review, we describe the emerging role of epigenetic modifications as fine tuners of gene transcription in mitochondrial dysfunction and vascular disease. Specifically, the following aspects are described in detail: (i) mitochondria and vascular function, (ii) mitochondrial ROS, (iii) epigenetic regulation of mitochondrial function; (iv) the role of mitochondrial metabolites as key effectors for chromatin-modifying enzymes; (v) epigenetic therapies. Understanding epigenetic routes may pave the way for new approaches to develop personalized therapies to prevent mitochondrial insufficiency and its complications.
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Affiliation(s)
- Shafeeq A Mohammed
- Center for Molecular Cardiology, University of Zürich, Zurich, Switzerland
| | - Samuele Ambrosini
- Center for Molecular Cardiology, University of Zürich, Zurich, Switzerland
| | - Thomas Lüscher
- Center for Molecular Cardiology, University of Zürich, Zurich, Switzerland.,Research, Education and Development, Royal Brompton and Harefield Hospital Trust and Imperial College, London, United Kingdom
| | - Francesco Paneni
- Center for Molecular Cardiology, University of Zürich, Zurich, Switzerland.,Department of Cardiology, University Heart Center, University Hospital Zurich, Zurich, Switzerland.,Department of Research and Education, University Hospital Zurich, Zurich, Switzerland
| | - Sarah Costantino
- Center for Molecular Cardiology, University of Zürich, Zurich, Switzerland
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27
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Lee JH, Go Y, Kim DY, Lee SH, Kim OH, Jeon YH, Kwon TK, Bae JH, Song DK, Rhyu IJ, Lee IK, Shong M, Oh BC, Petucci C, Park JW, Osborne TF, Im SS. Isocitrate dehydrogenase 2 protects mice from high-fat diet-induced metabolic stress by limiting oxidative damage to the mitochondria from brown adipose tissue. Exp Mol Med 2020; 52:238-252. [PMID: 32015410 PMCID: PMC7062825 DOI: 10.1038/s12276-020-0379-z] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/19/2019] [Accepted: 12/27/2019] [Indexed: 12/14/2022] Open
Abstract
Isocitrate dehydrogenase 2 (IDH2) is an NADP+-dependent enzyme that catalyzes the oxidative decarboxylation of isocitrate to α-ketoglutarate in the mitochondrial matrix, and is critical for the production of NADPH to limit the accumulation of mitochondrial reactive oxygen species (ROS). Here, we showed that high-fat diet (HFD) feeding resulted in accelerated weight gain in the IDH2KO mice due to a reduction in whole-body energy expenditure. Moreover, the levels of NADP+, NADPH, NAD+, and NADH were significantly decreased in the brown adipose tissue (BAT) of the HFD-fed IDH2KO animals, accompanied by decreased mitochondrial function and reduced expression of key genes involved in mitochondrial biogenesis, energy expenditure, and ROS resolution. Interestingly, these changes were partially reversed when the antioxidant butylated hydroxyanisole was added to the HFD. These observations reveal a crucial role for IDH2 in limiting ROS-dependent mitochondrial damage when BAT metabolism is normally enhanced to limit weight gain in response to dietary caloric overload.
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Affiliation(s)
- Jae-Ho Lee
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Younghoon Go
- Department of Internal Medicine, School of Medicine Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944 Republic of Korea
- Leading-Edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University Hospital, Daegu, 41404 South Korea
- Korean Medicine Application Center, Korea Institute of Oriental Medicine, Daegu, 41062 Republic of Korea
| | - Do-Young Kim
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Sun Hee Lee
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Ok-Hee Kim
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, Gachon University School of Medicine, Younsoo-gu, Inchon, 21999 Republic of Korea
| | - Yong Hyun Jeon
- Laboratory Animal Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, 41061 Republic of Korea
| | - Taeg Kyu Kwon
- Department of Immunology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Jae-Hoon Bae
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Dae-Kyu Song
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
| | - Im Joo Rhyu
- Department of Anatomy, Korea University College of Medicine, Seoul, 02841 Republic of Korea
| | - In-Kyu Lee
- Department of Internal Medicine, School of Medicine Kyungpook National University, Kyungpook National University Hospital, Daegu, 41944 Republic of Korea
- Leading-Edge Research Center for Drug Discovery and Development for Diabetes and Metabolic Disease, Kyungpook National University Hospital, Daegu, 41404 South Korea
| | - Minho Shong
- Research Center for Endocrinology and Metabolism, Chungnam National University Hospital (CNUH), 282 Munhwaro, Daejeon, 35015 Republic of Korea
| | - Byung-Chul Oh
- Department of Physiology, Lee Gil Ya Cancer and Diabetes Institute, Gachon University School of Medicine, Younsoo-gu, Inchon, 21999 Republic of Korea
| | - Christopher Petucci
- Center for Metabolic Origins of Disease, Sanford Burnham Prebys Medical Discovery Institute, Orlando, FL 32827 USA
- Cardiovascular Institute and Department of Medicine, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA 19104 USA
| | - Jeen-Woo Park
- School of Life Sciences and Biotechnology, College of Natural Science, Kyungpook National University, Daegu, 41566 Republic of Korea
| | - Timothy F. Osborne
- Institute for Fundamental Biomedical Research, Department of Medicine and Biological Chemistry, Johns Hopkins University School of Medicine, St. Petersburg, FL 33701 USA
| | - Seung-Soon Im
- Department of Physiology, Keimyung University School of Medicine, Daegu, 42601 Republic of Korea
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28
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Johnson RK, Vanderlinden L, DeFelice BC, Kechris K, Uusitalo U, Fiehn O, Sontag M, Crume T, Beyerlein A, Lernmark Å, Toppari J, Ziegler AG, She JX, Hagopian W, Rewers M, Akolkar B, Krischer J, Virtanen SM, Norris JM. Metabolite-related dietary patterns and the development of islet autoimmunity. Sci Rep 2019; 9:14819. [PMID: 31616039 PMCID: PMC6794249 DOI: 10.1038/s41598-019-51251-4] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 09/24/2019] [Indexed: 12/16/2022] Open
Abstract
The role of diet in type 1 diabetes development is poorly understood. Metabolites, which reflect dietary response, may help elucidate this role. We explored metabolomics and lipidomics differences between 352 cases of islet autoimmunity (IA) and controls in the TEDDY (The Environmental Determinants of Diabetes in the Young) study. We created dietary patterns reflecting pre-IA metabolite differences between groups and examined their association with IA. Secondary outcomes included IA cases positive for multiple autoantibodies (mAb+). The association of 853 plasma metabolites with outcomes was tested at seroconversion to IA, just prior to seroconversion, and during infancy. Key compounds in enriched metabolite sets were used to create dietary patterns reflecting metabolite composition, which were then tested for association with outcomes in the nested case-control subset and the full TEDDY cohort. Unsaturated phosphatidylcholines, sphingomyelins, phosphatidylethanolamines, glucosylceramides, and phospholipid ethers in infancy were inversely associated with mAb+ risk, while dicarboxylic acids were associated with an increased risk. An infancy dietary pattern representing higher levels of unsaturated phosphatidylcholines and phospholipid ethers, and lower sphingomyelins was protective for mAb+ in the nested case-control study only. Characterization of this high-risk infant metabolomics profile may help shape the future of early diagnosis or prevention efforts.
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Affiliation(s)
- Randi K Johnson
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Lauren Vanderlinden
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Brian C DeFelice
- UC Davis Genome Center-Metabolomics, University of California Davis, Davis, USA
| | - Katerina Kechris
- Department of Biostatistics and Informatics, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Ulla Uusitalo
- Health Informatics Institute, University of South Florida, Tampa, USA
| | - Oliver Fiehn
- UC Davis Genome Center-Metabolomics, University of California Davis, Davis, USA.,Department of Molecular and Cellular Biology, University of California Davis, Davis, USA
| | - Marci Sontag
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Tessa Crume
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Andreas Beyerlein
- Institute of Computational Biology, Helmholtz Zentrum München, Neuherberg, Germany.,Institute of Diabetes Research, Helmholtz Zentrum München, and Klinikum rechts der Isar, Technische Universität München, and Forschergruppe Diabetes e.V., Neuherberg, Germany
| | - Åke Lernmark
- Department of Clinical Sciences, Lund University/CRC, Lund, Sweden
| | - Jorma Toppari
- Department of Pediatrics, Turku University Hospital, Turku, Finland.,Institute of Biomedicine, Research Centre for Integrated Physiology and Pharmacology, University of Turku, Turku, Finland
| | - Anette-G Ziegler
- Institute of Diabetes Research, Helmholtz Zentrum München, and Klinikum rechts der Isar, Technische Universität München, and Forschergruppe Diabetes e.V., Neuherberg, Germany
| | - Jin-Xiong She
- Center for Biotechnology and Genomic Medicine, Augusta University, Augusta, USA
| | | | - Marian Rewers
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, USA
| | - Beena Akolkar
- National Institutes of Diabetes and Digestive and Kidney Disorders, National Institutes of Health, Bethesda, USA
| | - Jeffrey Krischer
- Health Informatics Institute, University of South Florida, Tampa, USA
| | - Suvi M Virtanen
- National Institute for Health and Welfare, Tampere, Finland.,University of Tampere, Tampere, Finland.,Tampere University Hospital, Tampere, Finland
| | - Jill M Norris
- Department of Epidemiology, Colorado School of Public Health, University of Colorado Anschutz Medical Campus, Aurora, USA.
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29
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Anderson AJ, Jackson TD, Stroud DA, Stojanovski D. Mitochondria-hubs for regulating cellular biochemistry: emerging concepts and networks. Open Biol 2019; 9:190126. [PMID: 31387448 PMCID: PMC6731593 DOI: 10.1098/rsob.190126] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Mitochondria are iconic structures in biochemistry and cell biology, traditionally referred to as the powerhouse of the cell due to a central role in energy production. However, modern-day mitochondria are recognized as key players in eukaryotic cell biology and are known to regulate crucial cellular processes, including calcium signalling, cell metabolism and cell death, to name a few. In this review, we will discuss foundational knowledge in mitochondrial biology and provide snapshots of recent advances that showcase how mitochondrial function regulates other cellular responses.
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Affiliation(s)
- Alexander J Anderson
- Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Thomas D Jackson
- Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - David A Stroud
- Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Diana Stojanovski
- Department of Biochemistry and Molecular Biology and The Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, Victoria, 3010, Australia
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30
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Zhang M, Bener MB, Jiang Z, Wang T, Esencan E, Scott Iii R, Horvath T, Seli E. Mitofusin 1 is required for female fertility and to maintain ovarian follicular reserve. Cell Death Dis 2019; 10:560. [PMID: 31332167 PMCID: PMC6646343 DOI: 10.1038/s41419-019-1799-3] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 05/10/2019] [Accepted: 06/24/2019] [Indexed: 12/20/2022]
Abstract
Mitochondria are dynamic organelles that continually adapt their structure through fusion and fission in response to changes in their bioenergetic environment. Targeted deletion of mitochondrial fusion protein mitofusin1 (MFN1) in oocytes resulted in female infertility associated with failure to achieve oocyte maturation. Oocyte-granulosa cell communication was impaired, and cadherins and connexins were downregulated, resulting in follicle developmental arrest at the secondary follicle stage. Deletion of MFN1 in oocytes resulted in mitochondrial dysfunction and altered mitochondrial dynamics, as well as accumulation of ceramide, which contributed to increased apoptosis and a reproductive phenotype that was partially rescued by treatment with ceramide synthesis inhibitor myriocin. Absence of MFN1 and resulting apoptotic cell loss also caused depletion of ovarian follicular reserve, and a phenotype consistent with accelerated female reproductive aging.
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Affiliation(s)
- Man Zhang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Muhammed Burak Bener
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Zongliang Jiang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA.,AgCenter, School of Animal Sciences, Louisiana State University, Baton Rouge, LA, 70803, USA
| | - Tianren Wang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA.,Foundation for Embryonic Competence, Basking Ridge, NJ, 07920, USA
| | - Ecem Esencan
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Richard Scott Iii
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA
| | - Tamas Horvath
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA.,Department of Comparative Medicine, Yale School of Medicine, New Haven, CT, 06520, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, 06510, USA.
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31
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Fila M, Pawłowska E, Blasiak J. Mitochondria in migraine pathophysiology - does epigenetics play a role? Arch Med Sci 2019; 15:944-956. [PMID: 31360189 PMCID: PMC6657237 DOI: 10.5114/aoms.2019.86061] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Accepted: 04/06/2018] [Indexed: 12/15/2022] Open
Abstract
The approximately three times higher rate of migraine prevalence in women than men may result from the mitochondrial transmission of this disease. Studies with imaging techniques suggest disturbances in mitochondrial metabolism in specific regions of the brain in migraine patients. Migraine shares some clinical features with several mitochondrial diseases and many other disorders include migraine headaches. Epigenetic regulation of mitochondrial DNA (mtDNA) is a matter of debate and there are some conflicting results, especially on mtDNA methylation. Micro RNAs (miRNAs) and long-noncoding RNA (lncRNAs) have been detected in mitochondria. The regulation of the miRNA-lncRNA axis can be important for mitochondrial physiology and its impairment can result in a disease phenotype. Further studies on the role of mitochondrial epigenetic modifications in migraine are needed, but they require new methods and approaches.
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Affiliation(s)
- Michał Fila
- Department of Neurology, Polish Mother Memorial Hospital, Research Institute, Lodz, Poland
| | | | - Janusz Blasiak
- Department of Molecular Genetics, University of Lodz, Lodz, Poland
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32
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Biamonti G, Maita L, Montecucco A. The Krebs Cycle Connection: Reciprocal Influence Between Alternative Splicing Programs and Cell Metabolism. Front Oncol 2018; 8:408. [PMID: 30319972 PMCID: PMC6168629 DOI: 10.3389/fonc.2018.00408] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 09/06/2018] [Indexed: 12/14/2022] Open
Abstract
Alternative splicing is a pervasive mechanism that molds the transcriptome to meet cell and organism needs. However, how this layer of gene expression regulation is coordinated with other aspects of the cell metabolism is still largely undefined. Glucose is the main energy and carbon source of the cell. Not surprisingly, its metabolism is finely tuned to satisfy growth requirements and in response to nutrient availability. A number of studies have begun to unveil the connections between glucose metabolism and splicing programs. Alternative splicing modulates the ratio between M1 and M2 isoforms of pyruvate kinase in this way determining the choice between aerobic glycolysis and complete glucose oxidation in the Krebs cycle. Reciprocally, intermediates in the Krebs cycle may impact splicing programs at different levels by modulating the activity of 2-oxoglutarate-dependent oxidases. In this review we discuss the molecular mechanisms that coordinate alternative splicing programs with glucose metabolism, two aspects with profound implications in human diseases.
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Affiliation(s)
- Giuseppe Biamonti
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
| | - Lucia Maita
- Istituto di Genetica Molecolare, Consiglio Nazionale delle Ricerche, Pavia, Italy
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33
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Gaber T, Chen Y, Krauß PL, Buttgereit F. Metabolism of T Lymphocytes in Health and Disease. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2018; 342:95-148. [PMID: 30635095 DOI: 10.1016/bs.ircmb.2018.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Adaptive immune responses that occur in infection, cancer, and autoimmune as well as allergic diseases involve the participation of T cells. T cells travel throughout the body searching for antigens, which are recognized via the major histocompatibility complexes. In the healthy organism, these T cells maintain metabolic quiescence until they encounter a potentially cognate antigen. Once activated, e.g., during an infection or tissue damage, T cells switch their metabolic program to gain energy and building blocks to maintain cellular homeostasis and to fulfill their specific immune functions involving clonal expansion and/or differentiation into effector and memory T cells to ultimately ensure host survival. Thus, differences in metabolism in healthy and pathogenic T cells provide an explanation for dysfunctionality of T-cell responses in metabolic disorders, autoimmunity, and cancer. Here, we summarize current knowledge on T-cell metabolism during the maintenance of homeostasis, activation, and differentiation as well as over the course of time that memory is generated in health and in diseased states such as autoimmunity and cancer.
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Affiliation(s)
- Timo Gaber
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Yuling Chen
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Pierre-Louis Krauß
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
| | - Frank Buttgereit
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, Berlin Institute of Health, Department of Rheumatology and Clinical Immunology, Berlin, Germany; German Rheumatism Research Centre (DRFZ) Berlin, a Leibniz Institute, Berlin, Germany
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Ducsay CA, Goyal R, Pearce WJ, Wilson S, Hu XQ, Zhang L. Gestational Hypoxia and Developmental Plasticity. Physiol Rev 2018; 98:1241-1334. [PMID: 29717932 PMCID: PMC6088145 DOI: 10.1152/physrev.00043.2017] [Citation(s) in RCA: 112] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Hypoxia is one of the most common and severe challenges to the maintenance of homeostasis. Oxygen sensing is a property of all tissues, and the response to hypoxia is multidimensional involving complicated intracellular networks concerned with the transduction of hypoxia-induced responses. Of all the stresses to which the fetus and newborn infant are subjected, perhaps the most important and clinically relevant is that of hypoxia. Hypoxia during gestation impacts both the mother and fetal development through interactions with an individual's genetic traits acquired over multiple generations by natural selection and changes in gene expression patterns by altering the epigenetic code. Changes in the epigenome determine "genomic plasticity," i.e., the ability of genes to be differentially expressed according to environmental cues. The genomic plasticity defined by epigenomic mechanisms including DNA methylation, histone modifications, and noncoding RNAs during development is the mechanistic substrate for phenotypic programming that determines physiological response and risk for healthy or deleterious outcomes. This review explores the impact of gestational hypoxia on maternal health and fetal development, and epigenetic mechanisms of developmental plasticity with emphasis on the uteroplacental circulation, heart development, cerebral circulation, pulmonary development, and the hypothalamic-pituitary-adrenal axis and adipose tissue. The complex molecular and epigenetic interactions that may impact an individual's physiology and developmental programming of health and disease later in life are discussed.
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Affiliation(s)
- Charles A. Ducsay
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Ravi Goyal
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - William J. Pearce
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Sean Wilson
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Xiang-Qun Hu
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
| | - Lubo Zhang
- The Lawrence D. Longo, MD Center for Perinatal Biology, Department of Basic Sciences, Loma Linda University School of Medicine, Loma Linda, California
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Metabolic Reprogramming and Redox Signaling in Pulmonary Hypertension. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2018; 967:241-260. [PMID: 29047090 DOI: 10.1007/978-3-319-63245-2_14] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Pulmonary hypertension is a complex disease of the pulmonary vasculature, which in severe cases terminates in right heart failure. Complex remodeling of pulmonary arteries comprises the central issue of its pathology. This includes extensive proliferation, apoptotic resistance and inflammation. As such, the molecular and cellular features of pulmonary hypertension resemble hallmark characteristics of cancer cell behavior. The vascular remodeling derives from significant metabolic changes in resident cells, which we describe in detail. It affects not only cells of pulmonary artery wall, but also its immediate microenvironment involving cells of immune system (i.e., macrophages). Thus aberrant metabolism constitutes principle component of the cancer-like theory of pulmonary hypertension. The metabolic changes in pulmonary artery cells resemble the cancer associated Warburg effect, involving incomplete glucose oxidation through aerobic glycolysis with depressed mitochondrial catabolism enabling the fueling of anabolic reactions with amino acids, nucleotides and lipids to sustain proliferation. Macrophages also undergo overlapping but distinct metabolic reprogramming inducing specific activation or polarization states that enable their participation in the vascular remodeling process. Such metabolic synergy drives chronic inflammation further contributing to remodeling. Enhanced glycolytic flux together with suppressed mitochondrial bioenergetics promotes the accumulation of reducing equivalents, NAD(P)H. We discuss the enzymes and reactions involved. The reducing equivalents modulate the regulation of proteins using NAD(P)H as the transcriptional co-repressor C-terminal binding protein 1 cofactor and significantly impact redox status (through GSH, NAD(P)H oxidases, etc.), which together act to control the phenotype of the cells of pulmonary arteries. The altered mitochondrial metabolism changes its redox poise, which together with enhanced NAD(P)H oxidase activity and reduced enzymatic antioxidant activity promotes a pro-oxidative cellular status. Herein we discuss all described metabolic changes along with resultant alterations in redox status, which result in excessive proliferation, apoptotic resistance, and inflammation, further leading to pulmonary arterial wall remodeling and thus establishing pulmonary artery hypertension pathology.
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D'Alessandro A, El Kasmi KC, Plecitá-Hlavatá L, Ježek P, Li M, Zhang H, Gupte SA, Stenmark KR. Hallmarks of Pulmonary Hypertension: Mesenchymal and Inflammatory Cell Metabolic Reprogramming. Antioxid Redox Signal 2018; 28. [PMID: 28637353 PMCID: PMC5737722 DOI: 10.1089/ars.2017.7217] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
SIGNIFICANCE The molecular events that promote the development of pulmonary hypertension (PH) are complex and incompletely understood. The complex interplay between the pulmonary vasculature and its immediate microenvironment involving cells of immune system (i.e., macrophages) promotes a persistent inflammatory state, pathological angiogenesis, and fibrosis that are driven by metabolic reprogramming of mesenchymal and immune cells. Recent Advancements: Consistent with previous findings in the field of cancer metabolism, increased glycolytic rates, incomplete glucose and glutamine oxidation to support anabolism and anaplerosis, altered lipid synthesis/oxidation ratios, increased one-carbon metabolism, and activation of the pentose phosphate pathway to support nucleoside synthesis are but some of the key metabolic signatures of vascular cells in PH. In addition, metabolic reprogramming of macrophages is observed in PH and is characterized by distinct features, such as the induction of specific activation or polarization states that enable their participation in the vascular remodeling process. CRITICAL ISSUES Accumulation of reducing equivalents, such as NAD(P)H in PH cells, also contributes to their altered phenotype both directly and indirectly by regulating the activity of the transcriptional co-repressor C-terminal-binding protein 1 to control the proliferative/inflammatory gene expression in resident and immune cells. Further, similar to the role of anomalous metabolism in mitochondria in cancer, in PH short-term hypoxia-dependent and long-term hypoxia-independent alterations of mitochondrial activity, in the absence of genetic mutation of key mitochondrial enzymes, have been observed and explored as potential therapeutic targets. FUTURE DIRECTIONS For the foreseeable future, short- and long-term metabolic reprogramming will become a candidate druggable target in the treatment of PH. Antioxid. Redox Signal. 28, 230-250.
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Affiliation(s)
- Angelo D'Alessandro
- 1 Department of Biochemistry and Molecular Genetics, University of Colorado - Denver , Colorado
| | - Karim C El Kasmi
- 2 Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, University of Colorado - Denver , Colorado.,3 Department of Pediatric Gastroenterology, University of Colorado - Denver , Colorado
| | - Lydie Plecitá-Hlavatá
- 4 Department of Mitochondrial Physiology, Institute of Physiology , Czech Academy of Sciences, Prague, Czech Republic
| | - Petr Ježek
- 4 Department of Mitochondrial Physiology, Institute of Physiology , Czech Academy of Sciences, Prague, Czech Republic
| | - Min Li
- 2 Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, University of Colorado - Denver , Colorado
| | - Hui Zhang
- 2 Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, University of Colorado - Denver , Colorado
| | - Sachin A Gupte
- 5 Department of Pharmacology, School of Medicine, New York Medical College , Valhalla, New York
| | - Kurt R Stenmark
- 2 Developmental Lung Biology and Cardiovascular Pulmonary Research Laboratories, University of Colorado - Denver , Colorado
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Spallotta F, Cencioni C, Atlante S, Garella D, Cocco M, Mori M, Mastrocola R, Kuenne C, Guenther S, Nanni S, Azzimato V, Zukunft S, Kornberger A, Sürün D, Schnütgen F, von Melchner H, Di Stilo A, Aragno M, Braspenning M, van Criekinge W, De Blasio MJ, Ritchie RH, Zaccagnini G, Martelli F, Farsetti A, Fleming I, Braun T, Beiras-Fernandez A, Botta B, Collino M, Bertinaria M, Zeiher AM, Gaetano C. Stable Oxidative Cytosine Modifications Accumulate in Cardiac Mesenchymal Cells From Type2 Diabetes Patients. Circ Res 2018; 122:31-46. [DOI: 10.1161/circresaha.117.311300] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2017] [Revised: 11/10/2017] [Accepted: 11/16/2017] [Indexed: 12/17/2022]
Abstract
Rationale:
Human cardiac mesenchymal cells (CMSCs) are a therapeutically relevant primary cell population. Diabetes mellitus compromises CMSC function as consequence of metabolic alterations and incorporation of stable epigenetic changes.
Objective:
To investigate the role of α-ketoglutarate (αKG) in the epimetabolic control of DNA demethylation in CMSCs.
Methods and Results:
Quantitative global analysis, methylated and hydroxymethylated DNA sequencing, and gene-specific GC methylation detection revealed an accumulation of 5-methylcytosine, 5-hydroxymethylcytosine, and 5-formylcytosine in the genomic DNA of human CMSCs isolated from diabetic donors. Whole heart genomic DNA analysis revealed iterative oxidative cytosine modification accumulation in mice exposed to high-fat diet (HFD), injected with streptozotocin, or both in combination (streptozotocin/HFD). In this context, untargeted and targeted metabolomics indicated an intracellular reduction of αKG synthesis in diabetic CMSCs and in the whole heart of HFD mice. This observation was paralleled by a compromised TDG (thymine DNA glycosylase) and TET1 (ten–eleven translocation protein 1) association and function with TET1 relocating out of the nucleus. Molecular dynamics and mutational analyses showed that αKG binds TDG on Arg275 providing an enzymatic allosteric activation. As a consequence, the enzyme significantly increased its capacity to remove G/T nucleotide mismatches or 5-formylcytosine. Accordingly, an exogenous source of αKG restored the DNA demethylation cycle by promoting TDG function, TET1 nuclear localization, and TET/TDG association. TDG inactivation by CRISPR/Cas9 knockout or TET/TDG siRNA knockdown induced 5-formylcytosine accumulation, thus partially mimicking the diabetic epigenetic landscape in cells of nondiabetic origin. The novel compound (S)-2-[(2,6-dichlorobenzoyl)amino]succinic acid (AA6), identified as an inhibitor of αKG dehydrogenase, increased the αKG level in diabetic CMSCs and in the heart of HFD and streptozotocin mice eliciting, in HFD, DNA demethylation, glucose uptake, and insulin response.
Conclusions:
Restoring the epimetabolic control of DNA demethylation cycle promises beneficial effects on cells compromised by environmental metabolic changes.
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Affiliation(s)
- Francesco Spallotta
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Chiara Cencioni
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Sandra Atlante
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Davide Garella
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Mattia Cocco
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Mattia Mori
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Raffaella Mastrocola
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Carsten Kuenne
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Stefan Guenther
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Simona Nanni
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Valerio Azzimato
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Sven Zukunft
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Angela Kornberger
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Duran Sürün
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Frank Schnütgen
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Harald von Melchner
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Antonella Di Stilo
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Manuela Aragno
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Maarten Braspenning
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Wim van Criekinge
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Miles J. De Blasio
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Rebecca H. Ritchie
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Germana Zaccagnini
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Fabio Martelli
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Antonella Farsetti
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Ingrid Fleming
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Thomas Braun
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Andres Beiras-Fernandez
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Bruno Botta
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Massimo Collino
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Massimo Bertinaria
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Andreas M. Zeiher
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
| | - Carlo Gaetano
- From the Goethe University, Frankfurt am Main, Germany (F. Spallotta, C.C., S.A., S.Z., D.S., F. Schnütgen, H.v.M., A.F., I.F., A.M.Z., C.G.); University of Turin, Torino, Italy (D.G., M. Cocco, R.M., A.D.S., M.A., M. Collino, M. Bertinaria); Istituto Italiano di Tecnologia CLNS@Sapienza Rome, Italy (M.M.); Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (C.K., S.G., T.B.); Università Cattolica del Sacro Cuore, Rome, Italy (S.N.); Karolinska Institutet, Huddinge, Sweden (V.A
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38
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Wang D, Liu Y, Zhang R, Zhang F, Sui W, Chen L, Zheng R, Chen X, Wen F, Ouyang HW, Ji J. Apoptotic transition of senescent cells accompanied with mitochondrial hyper-function. Oncotarget 2017; 7:28286-300. [PMID: 27056883 PMCID: PMC5053727 DOI: 10.18632/oncotarget.8536] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 03/06/2016] [Indexed: 12/20/2022] Open
Abstract
Defined as stable cell-cycle arrest, cellular senescence plays an important role in diverse biological processes including tumorigenesis, organismal aging, and embryonic development. Although increasing evidence has documented the metabolic changes in senescent cells, mitochondrial function and its potential contribution to the fate of senescent cells remain largely unknown. Here, using two in vitro models of cellular senescence induced by doxorubicin treatment and prolonged passaging of neonatal human foreskin fibroblasts, we report that senescent cells exhibited high ROS level and augmented glucose metabolic rate concomitant with both morphological and quantitative changes of mitochondria. Furthermore, mitochondrial membrane potential depolarized at late stage of senescent cells which eventually led to apoptosis. Our study reveals that mitochondrial hyper-function contributes to the implementation of cellular senescence and we propose a model in which the mitochondrion acts as the key player in promoting fate-determination in senescent cells.
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Affiliation(s)
- Danli Wang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Yang Liu
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Rui Zhang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Fen Zhang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Weihao Sui
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Li Chen
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Ran Zheng
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China
| | - Xiaowen Chen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, China
| | - Feiqiu Wen
- Division of Hematology and Oncology, Shenzhen Children's Hospital, Shenzhen, China
| | - Hong-Wei Ouyang
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, China
| | - Junfeng Ji
- Center of Stem Cell and Regenerative Medicine, School of Medicine, Zhejiang University, Hangzhou, China.,Zhejiang Provincial Key Laboratory of Tissue Engineering and Regenerative Medicine, Hangzhou, China
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39
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Jin G, Xu C, Zhang X, Long J, Rezaeian AH, Liu C, Furth ME, Kridel S, Pasche B, Bian XW, Lin HK. Atad3a suppresses Pink1-dependent mitophagy to maintain homeostasis of hematopoietic progenitor cells. Nat Immunol 2017; 19:29-40. [PMID: 29242539 DOI: 10.1038/s41590-017-0002-1] [Citation(s) in RCA: 88] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 10/04/2017] [Indexed: 01/13/2023]
Abstract
Although deletion of certain autophagy-related genes has been associated with defects in hematopoiesis, it remains unclear whether hyperactivated mitophagy affects the maintenance and differentiation of hematopoietic stem cells (HSCs) and committed progenitor cells. Here we report that targeted deletion of the gene encoding the AAA+-ATPase Atad3a hyperactivated mitophagy in mouse hematopoietic cells. Affected mice showed reduced survival, severely decreased bone-marrow cellularity, erythroid anemia and B cell lymphopenia. Those phenotypes were associated with skewed differentiation of stem and progenitor cells and an enlarged HSC pool. Mechanistically, Atad3a interacted with the mitochondrial channel components Tom40 and Tim23 and served as a bridging factor to facilitate appropriate transportation and processing of the mitophagy protein Pink1. Loss of Atad3a caused accumulation of Pink1 and activated mitophagy. Notably, deletion of Pink1 in Atad3a-deficient mice significantly 'rescued' the mitophagy defect, which resulted in restoration of the progenitor and HSC pools. Our data indicate that Atad3a suppresses Pink1-dependent mitophagy and thereby serves a key role in hematopoietic homeostasis.
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Affiliation(s)
- Guoxiang Jin
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chuan Xu
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.,Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Oncology, Chengdu Military General Hospital, Chengdu, Sichuan, China
| | - Xian Zhang
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Jie Long
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA.,Department of Pathology School of Basic Medical Science, Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Abdol Hossein Rezaeian
- Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Chunfang Liu
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA.,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Mark E Furth
- Wake Forest Innovations, Wake Forest Baptist Medical Center, Winston-Salem, NC, USA
| | - Steven Kridel
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Boris Pasche
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Xiu-Wu Bian
- Institute of Pathology and Southwest Cancer Center, Southwest Hospital, Third Military Medical University, Chongqing, China.
| | - Hui-Kuan Lin
- Department of Cancer Biology, Wake Forest School of Medicine, Winston-Salem, NC, USA. .,Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, TX, USA. .,Graduate Institute of Basic Medical Science, China Medical University, Taichung, Taiwan. .,Department of Biotechnology, Asia University, Taichung, Taiwan.
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40
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Vazquez-Martin A, Van den Haute C, Cufí S, Corominas-Faja B, Cuyàs E, Lopez-Bonet E, Rodriguez-Gallego E, Fernández-Arroyo S, Joven J, Baekelandt V, Menendez JA. Mitophagy-driven mitochondrial rejuvenation regulates stem cell fate. Aging (Albany NY) 2017; 8:1330-52. [PMID: 27295498 PMCID: PMC4993334 DOI: 10.18632/aging.100976] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Accepted: 05/30/2016] [Indexed: 12/12/2022]
Abstract
Our understanding on how selective mitochondrial autophagy, or mitophagy, can sustain the archetypal properties of stem cells is incomplete. PTEN-induced putative kinase 1 (PINK1) plays a key role in the maintenance of mitochondrial morphology and function and in the selective degradation of damaged mitochondria by mitophagy. Here, using embryonic fibroblasts from PINK1 gene-knockout (KO) mice, we evaluated whether mitophagy is a causal mechanism for the control of cell-fate plasticity and maintenance of pluripotency. Loss of PINK1-dependent mitophagy was sufficient to dramatically decrease the speed and efficiency of induced pluripotent stem cell (iPSC) reprogramming. Mitophagy-deficient iPSC colonies, which were characterized by a mixture of mature and immature mitochondria, seemed unstable, with a strong tendency to spontaneously differentiate and form heterogeneous populations of cells. Although mitophagy-deficient iPSC colonies normally expressed pluripotent markers, functional monitoring of cellular bioenergetics revealed an attenuated glycolysis in mitophagy-deficient iPSC cells. Targeted metabolomics showed a notable alteration in numerous glycolysis- and TCA-related metabolites in mitophagy-deficient iPSC cells, including a significant decrease in the intracellular levels of α-ketoglutarate -a key suppressor of the differentiation path in stem cells. Mitophagy-deficient iPSC colonies exhibited a notably reduced teratoma-initiating capacity, but fully retained their pluripotency and multi-germ layer differentiation capacity in vivo. PINK1-dependent mitophagy pathway is an important mitochondrial switch that determines the efficiency and quality of somatic reprogramming. Mitophagy-driven mitochondrial rejuvenation might contribute to the ability of iPSCs to suppress differentiation by directing bioenergetic transition and metabolome remodeling traits. These findings provide new insights into how mitophagy might influence the stem cell decisions to retain pluripotency or differentiate in tissue regeneration and aging, tumor growth, and regenerative medicine.
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Affiliation(s)
| | - Chris Van den Haute
- Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, Katholieke Universiteit Leuven, Leuven, Flanders, Belgium
| | - Sílvia Cufí
- Josep Carreras Leukemia Research Institute, Stem Cell Lab, Barcelona, Spain
| | - Bruna Corominas-Faja
- Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Elisabet Cuyàs
- Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain
| | - Eugeni Lopez-Bonet
- Department of Anatomical Pathology, Dr. Josep Trueta Hospital of Girona, Girona, Catalonia, Spain
| | - Esther Rodriguez-Gallego
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Salvador Fernández-Arroyo
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Jorge Joven
- Unitat de Recerca Biomèdica, Hospital Universitari Sant Joan, Institut d'Investigació Sanitaria Pere Virgili (IISPV), Universitat Rovira i Virgili, Reus, Spain
| | - Veerle Baekelandt
- Laboratory for Neurobiology and Gene Therapy, Department of Neurosciences, Katholieke Universiteit Leuven, Leuven, Flanders, Belgium
| | - Javier A Menendez
- Molecular Oncology Group, Girona Biomedical Research Institute (IDIBGI), Girona, Spain.,ProCURE (Program Against Cancer Therapeutic Resistance), Metabolism and Cancer Group, Catalan Institute of Oncology, Girona, Spain
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41
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Nacarelli T, Sell C. Targeting metabolism in cellular senescence, a role for intervention. Mol Cell Endocrinol 2017; 455:83-92. [PMID: 27591812 DOI: 10.1016/j.mce.2016.08.049] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 07/29/2016] [Accepted: 08/30/2016] [Indexed: 01/06/2023]
Abstract
Cellular senescence has gained much attention as a contributor to aging and susceptibility to disease. Senescent cells undergo a stable cell cycle arrest and produce pro-inflammatory cytokines. However, an additional feature of the senescence phenotype is an altered metabolic state. Despite maintaining a non-dividing state, senescent cells display a high metabolic rate. Metabolic changes characteristic of replicative senescence include altered mitochondrial function and perturbations in growth signaling pathways, such as the mTORC1-signaling pathway. Recent evidence has raised the possibility that these metabolic changes may be essential for the induction and maintenance of the senescent state. Interventions such as rapamycin treatment and methionine restriction impact key aspects of metabolism and delay cellular senescence to extend cellular lifespan. Here, we review the metabolic changes and potential metabolic regulators of the senescence program. In addition, we will discuss how lifespan-extending regimens prevent metabolic stress that accompanies and potentially regulates the senescence program.
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Affiliation(s)
- Timothy Nacarelli
- Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA
| | - Christian Sell
- Drexel University College of Medicine, 245 North 15th Street, Philadelphia, PA 19102, USA.
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42
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Ashtekar A, Huk D, Magner A, La Perle K, Zhang X, Piruat JI, López-Barneo J, Jhiang SM, Kirschner LS. Sdhd ablation promotes thyroid tumorigenesis by inducing a stem-like phenotype. Endocr Relat Cancer 2017; 24:579-591. [PMID: 28928232 PMCID: PMC5650926 DOI: 10.1530/erc-17-0229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 09/19/2017] [Indexed: 12/12/2022]
Abstract
Mutations in genes encoding enzymes in the tricarboxylic acid cycle (TCA, also known as the Krebs cycle) have been implicated as causative genetic lesions in a number of human cancers, including renal cell cancers, glioblastomas and pheochromocytomas. In recent studies, missense mutations in the succinate dehydrogenase (SDH) complex have also been proposed to cause differentiated thyroid cancer. In order to gain mechanistic insight into this process, we generated mice lacking the SDH subunit D (Sdhd) in the thyroid. We report that these mice develop enlarged thyroid glands with follicle hypercellularity and increased proliferation. In vitro, human thyroid cell lines with knockdown of SDHD exhibit an enhanced migratory capability, despite no change in proliferative capacity. Interestingly, these cells acquire stem-like features which are also observed in the mouse tumors. The stem-like characteristics are reversed by α-ketoglutarate, suggesting that SDH-associated tumorigenesis results from dedifferentiation driven by an imbalance in cellular metabolites of the TCA cycle. The results of this study reveal a metabolic vulnerability for potential future treatment of SDH-associated neoplasia.
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Affiliation(s)
- Amruta Ashtekar
- Department of Cancer Biology and GeneticsThe Ohio State University, Columbus, Ohio, USA
| | - Danielle Huk
- Department of Cancer Biology and GeneticsThe Ohio State University, Columbus, Ohio, USA
| | - Alexa Magner
- Department of Cancer Biology and GeneticsThe Ohio State University, Columbus, Ohio, USA
| | - Krista La Perle
- Department of Veterinary Biosciences and Comparative Pathology & Mouse Phenotyping Shared ResourceThe Ohio State University, Columbus, Ohio, USA
| | - Xiaoli Zhang
- Department of BiostatisticsThe Ohio State University, Columbus, Ohio, USA
| | - José I Piruat
- Instituto de Biomedicina de Sevilla (IBiS)Hospital Universitario Virgen del Rocío CSIC Universidad de Sevilla, Seville, Spain
| | - José López-Barneo
- Instituto de Biomedicina de Sevilla (IBiS)Hospital Universitario Virgen del Rocío CSIC Universidad de Sevilla, Seville, Spain
| | - Sissy M Jhiang
- Department of Physiology and Cell BiologyThe Ohio State University, Columbus, Ohio, USA
| | - Lawrence S Kirschner
- Department of Cancer Biology and GeneticsThe Ohio State University, Columbus, Ohio, USA
- Division of EndocrinologyDiabetes, and Metabolism, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
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43
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Lee M, Ahn JI, Lee AR, Ko DW, Yang WS, Lee G, Ahn JY, Lim JM. Adverse Effect of Superovulation Treatment on Maturation, Function and Ultrastructural Integrity of Murine Oocytes. Mol Cells 2017; 40:558-566. [PMID: 28756654 PMCID: PMC5582302 DOI: 10.14348/molcells.2017.0058] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/28/2017] [Accepted: 07/05/2017] [Indexed: 12/04/2022] Open
Abstract
Regular monitoring on experimental animal management found the fluctuation of ART outcome, which showed a necessity to explore whether superovulation treatment is responsible for such unexpected outcome. This study was subsequently conducted to examine whether superovulation treatment can preserve ultrastructural integrity and developmental competence of oocytes following oocyte activation and embryo culture. A randomized study using mouse model was designed and in vitro development (experiment 1), ultrastructural morphology (experiment 2) and functional integrity of the oocytes (experiment 3) retrieved after PMSG/hCG injection (superovulation group) or not (natural ovulation; control group) were evaluated. In experiment 1, more oocytes were retrieved following superovulation than following natural ovulation, but natural ovulation yielded higher (p < 0.0563) maturation rate than superovulation. The capacity of mature oocytes to form pronucleus and to develop into blastocysts in vitro was similar. In experiment 2, a notable (p < 0.0186) increase in mitochondrial deformity, characterized by the formation of vacuolated mitochondria, was detected in the superovulation group. Multivesicular body formation was also increased, whereas early endosome formation was significantly decreased. No obvious changes in other microorganelles, however, were detected, which included the formation and distribution of mitochondria, cortical granules, microvilli, and smooth and rough endoplasmic reticulum. In experiment 3, significant decreases in mitochondrial activity, ATP production and dextran uptake were detected in the superovulation group. In conclusion, superovulation treatment may change both maturational status and functional and ultrastuctural integrity of oocytes. Superovulation effect on preimplantation development can be discussed.
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Affiliation(s)
- Myungook Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
| | - Jong Il Ahn
- Research Institutes of Agriculture and Life Sciences, Seoul National University, Seoul 08826,
Korea
| | - Ah Ran Lee
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
| | - Dong Woo Ko
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
| | - Woo Sub Yang
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
| | - Gene Lee
- Laboratory of Molecular Genetics, Dental Research Institute, School of Dentistry, Seoul National University, Seoul 03080,
Korea
| | - Ji Yeon Ahn
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
| | - Jeong Mook Lim
- Department of Agricultural Biotechnology, Seoul National University, Seoul 08826,
Korea
- Research Institutes of Agriculture and Life Sciences, Seoul National University, Seoul 08826,
Korea
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44
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Allostatic load and comorbidities: A mitochondrial, epigenetic, and evolutionary perspective. Dev Psychopathol 2017; 28:1117-1146. [PMID: 27739386 DOI: 10.1017/s0954579416000730] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Stress-related pathophysiology drives comorbid trajectories that elude precise prediction. Allostatic load algorithms that quantify biological "wear and tear" represent a comprehensive approach to detect multisystemic disease processes of the mind and body. However, the multiple morbidities directly or indirectly related to stress physiology remain enigmatic. Our aim in this article is to propose that biological comorbidities represent discrete pathophysiological processes captured by measuring allostatic load. This has applications in research and clinical settings to predict physical and psychiatric comorbidities alike. The reader will be introduced to the concepts of allostasis, allostasic states, allostatic load, and allostatic overload as they relate to stress-related diseases and the proposed prediction of biological comorbidities that extend rather to understanding psychopathologies. In our transdisciplinary discussion, we will integrate perspectives related to (a) mitochondrial biology as a key player in the allostatic load time course toward diseases that "get under the skin and skull"; (b) epigenetics related to child maltreatment and biological embedding that shapes stress perception throughout lifespan development; and
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Mitochondrial health, the epigenome and healthspan. Clin Sci (Lond) 2017; 130:1285-305. [PMID: 27358026 DOI: 10.1042/cs20160002] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2016] [Accepted: 05/03/2016] [Indexed: 02/07/2023]
Abstract
Food nutrients and metabolic supply-demand dynamics constitute environmental factors that interact with our genome influencing health and disease states. These gene-environment interactions converge at the metabolic-epigenome-genome axis to regulate gene expression and phenotypic outcomes. Mounting evidence indicates that nutrients and lifestyle strongly influence genome-metabolic functional interactions determining disease via altered epigenetic regulation. The mitochondrial network is a central player of the metabolic-epigenome-genome axis, regulating the level of key metabolites [NAD(+), AcCoA (acetyl CoA), ATP] acting as substrates/cofactors for acetyl transferases, kinases (e.g. protein kinase A) and deacetylases (e.g. sirtuins, SIRTs). The chromatin, an assembly of DNA and nucleoproteins, regulates the transcriptional process, acting at the epigenomic interface between metabolism and the genome. Within this framework, we review existing evidence showing that preservation of mitochondrial network function is directly involved in decreasing the rate of damage accumulation thus slowing aging and improving healthspan.
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Interplay between mitochondrial metabolism and oxidative stress in ischemic stroke: An epigenetic connection. Mol Cell Neurosci 2017; 82:176-194. [DOI: 10.1016/j.mcn.2017.05.008] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 04/26/2017] [Accepted: 05/24/2017] [Indexed: 12/18/2022] Open
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Barbati SA, Colussi C, Bacci L, Aiello A, Re A, Stigliano E, Isidori AM, Grassi C, Pontecorvi A, Farsetti A, Gaetano C, Nanni S. Transcription Factor CREM Mediates High Glucose Response in Cardiomyocytes and in a Male Mouse Model of Prolonged Hyperglycemia. Endocrinology 2017; 158:2391-2405. [PMID: 28368536 DOI: 10.1210/en.2016-1960] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Accepted: 03/16/2017] [Indexed: 01/31/2023]
Abstract
This study aims at investigating the epigenetic landscape of cardiomyocytes exposed to elevated glucose levels. High glucose (30 mM) for 72 hours determined some epigenetic changes in mouse HL-1 and rat differentiated H9C2 cardiomyocytes including upregulation of class I and III histone deacetylase protein levels and activity, inhibition of histone acetylase p300 activity, increase in histone H3 lysine 27 trimethylation, and reduction in H3 lysine 9 acetylation. Gene expression analysis focused on cardiotoxicity revealed that high glucose induced markers associated with tissue damage, fibrosis, and cardiac remodeling such as Nexilin (NEXN), versican, cyclic adenosine 5'-monophosphate-responsive element modulator (CREM), and adrenoceptor α2A (ADRA2). Notably, the transcription factor CREM was found to be important in the regulation of cardiotoxicity-associated genes as assessed by specific small interfering RNA and chromatin immunoprecipitation experiments. In CD1 mice, made hyperglycemic by streptozotoicin (STZ) injection, cardiac structural alterations were evident at 6 months after STZ treatment and were associated with a significant increase of H3 lysine 27 trimethylation and reduction of H3 lysine 9 acetylation. Consistently, NEXN, CREM, and ADRA2 expression was significantly induced at the RNA and protein levels. Confocal microscopy analysis of NEXN localization showed this protein irregularly distributed along the sarcomeres in the heart of hyperglycemic mice. This evidence suggested a structural alteration of cardiac Z-disk with potential consequences on contractility. In conclusion, high glucose may alter the epigenetic landscape of cardiac cells. Sildenafil, restoring guanosine 3', 5'-cyclic monophosphate levels, counteracted the increase of CREM and NEXN, providing a protective effect in the presence of hyperglycemia.
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Affiliation(s)
- Saviana A Barbati
- Institute of Human Physiology, Università Cattolica di Roma, 00168 Rome, Italy
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
| | - Claudia Colussi
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
- Institute of Cell Biology and Neurobiology, National Research Council, 00143 Rome, Italy
| | - Lorenza Bacci
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
| | - Aurora Aiello
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
- Institute of Cell Biology and Neurobiology, National Research Council, 00143 Rome, Italy
| | - Agnese Re
- Institute of Cell Biology and Neurobiology, National Research Council, 00143 Rome, Italy
| | - Egidio Stigliano
- Department of Histopathology, Università Cattolica di Roma, 00168 Rome, Italy
| | - Andrea M Isidori
- Department of Experimental Medicine, "Sapienza" University, 00161 Rome, Italy
| | - Claudio Grassi
- Institute of Human Physiology, Università Cattolica di Roma, 00168 Rome, Italy
| | - Alfredo Pontecorvi
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
| | - Antonella Farsetti
- Institute of Cell Biology and Neurobiology, National Research Council, 00143 Rome, Italy
- Medicine Clinic III, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Carlo Gaetano
- Medicine Clinic III, Division of Cardiovascular Epigenetics, Goethe University Frankfurt, 60590 Frankfurt am Main, Germany
| | - Simona Nanni
- Institute of Medical Pathology, Università Cattolica di Roma, 00168 Rome, Italy
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Abstract
One of the fundamental traits of immune cells in rheumatoid arthritis (RA) is their ability to proliferate, a property shared with the joint-resident cells that form the synovial pannus. The building of biomass imposes high demands for energy and biosynthetic precursors, implicating metabolic control as a basic disease mechanism. During preclinical RA, when autoreactive T cells expand and immunological tolerance is broken, the main sites of disease are the secondary lymphoid tissues. Naive CD4+ T cells from patients with RA have a distinct metabolic signature, characterized by dampened glycolysis, low ATP levels and enhanced shunting of glucose into the pentose phosphate pathway. Equipped with high levels of NADPH and depleted of intracellular reactive oxygen species, such T cells hyperproliferate and acquire proinflammatory effector functions. During clinical RA, immune cells coexist with stromal cells in the acidic milieu of the inflamed joint. This microenvironment is rich in metabolic intermediates that are released into the extracellular space to shape cell-cell communication and the functional activity of tissue-resident cells. Increasing awareness of how metabolites regulate signalling pathways, guide post-translational modifications and condition the tissue microenvironment will help to connect environmental factors with the pathogenic behaviour of T cells in RA.
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Abstract
Immune cells constantly patrol the body via the bloodstream and migrate into multiple tissues where they face variable and sometimes demanding environmental conditions. Nutrient and oxygen availability can vary during homeostasis, and especially during the course of an immune response, creating a demand for immune cells that are highly metabolically dynamic. As an evolutionary response, immune cells have developed different metabolic programmes to supply them with cellular energy and biomolecules, enabling them to cope with changing and challenging metabolic conditions. In the past 5 years, it has become clear that cellular metabolism affects immune cell function and differentiation, and that disease-specific metabolic configurations might provide an explanation for the dysfunctional immune responses seen in rheumatic diseases. This Review outlines the metabolic challenges faced by immune cells in states of homeostasis and inflammation, as well as the variety of metabolic configurations utilized by immune cells during differentiation and activation. Changes in cellular metabolism that contribute towards the dysfunctional immune responses seen in rheumatic diseases are also briefly discussed.
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Affiliation(s)
- Timo Gaber
- Charité University Hospital, Department of Rheumatology and Clinical Immunology, Charité University Medicine, Charitéplatz 1, 10117 Berlin, Germany.,German Rheumatism Research Centre (DRFZ), Charitéplatz 1, 10117 Berlin, Germany
| | - Cindy Strehl
- Charité University Hospital, Department of Rheumatology and Clinical Immunology, Charité University Medicine, Charitéplatz 1, 10117 Berlin, Germany.,German Rheumatism Research Centre (DRFZ), Charitéplatz 1, 10117 Berlin, Germany
| | - Frank Buttgereit
- Charité University Hospital, Department of Rheumatology and Clinical Immunology, Charité University Medicine, Charitéplatz 1, 10117 Berlin, Germany.,German Rheumatism Research Centre (DRFZ), Charitéplatz 1, 10117 Berlin, Germany
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Wang T, Zhang M, Jiang Z, Seli E. Mitochondrial dysfunction and ovarian aging. Am J Reprod Immunol 2017; 77. [PMID: 28194828 DOI: 10.1111/aji.12651] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 01/17/2017] [Indexed: 01/02/2023] Open
Abstract
Mitochondria are double-membrane-bound organelles that are responsible for the generation of most of the cell's energy. Mitochondrial dysfunction has been implicated in cellular senescence in general and ovarian aging in particular. Recent studies exploited this association by studying mitochondrial DNA (mtDNA) copy number as a potential biomarker of embryo viability and the use of mitochondrial nutrients and autologous mitochondrial transfer as a potential treatment for poor ovarian function and response.
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Affiliation(s)
- Tianren Wang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Man Zhang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Zongliang Jiang
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
| | - Emre Seli
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale School of Medicine, New Haven, CT, USA
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