1
|
Azevedo RDSD, Falcão KVG, Almeida SMVD, Araújo MC, Silva-Filho RC, Souza Maia MBD, Amaral IPGD, Leite ACR, de Souza Bezerra R. The tissue-specific nature of physiological zebrafish mitochondrial bioenergetics. Mitochondrion 2024; 77:101901. [PMID: 38777222 DOI: 10.1016/j.mito.2024.101901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 04/27/2024] [Accepted: 05/15/2024] [Indexed: 05/25/2024]
Abstract
Zebrafish are a powerful tool to study a myriad of experimental conditions, including mitochondrial bioenergetics. Considering that mitochondria are different in many aspects depending on the tissue evaluated, in the zebrafish model there is still a lack of this investigation. Especially for juvenile zebrafish. In the present study, we examined whether different tissues from zebrafish juveniles show mitochondrial density- and tissue-specificity comparing brain, liver, heart, and skeletal muscle (SM). The liver and brain complex IV showed the highest O2 consumption of all ETC in all tissues (10x when compared to other respiratory complexes). The liver showed a higher potential for ROS generation. In this way, the brain and liver showed more susceptibility to O2- generation when compared to other tissues. Regarding Ca2+ transport, the brain showed greater capacity for Ca2+ uptake and the liver presented low Ca2+ uptake capacity. The liver and brain were more susceptible to producing NO. The enzymes SOD and Catalase showed high activity in the brain, whereas GPx showed higher activity in the liver and CS in the SM. TEM reveals, as expected, a physiological diverse mitochondrial morphology. The essential differences between zebrafish tissues investigated probably reflect how the mitochondria play a diverse role in systemic homeostasis. This feature may not be limited to normal metabolic functions but also to stress conditions. In summary, mitochondrial bioenergetics in zebrafish juvenile permeabilized tissues showed a tissue-specificity and a useful tool to investigate conditions of redox system imbalance, mainly in the liver and brain.
Collapse
Affiliation(s)
- Rafael David Souto de Azevedo
- Laboratório de Biologia Celular e Molecular, Universidade de Pernambuco - UPE, Campus Garanhuns, Garanhuns, PE, Brazil.
| | - Kivia Vanessa Gomes Falcão
- Departamento de Bioquímica, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, Brazil
| | | | - Marlyete Chagas Araújo
- Departamento de Bioquímica, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, Brazil
| | | | | | | | | | - Ranilson de Souza Bezerra
- Departamento de Bioquímica, Universidade Federal de Pernambuco, Cidade Universitária, Recife, PE, Brazil
| |
Collapse
|
2
|
Liu X, Chen S, Luo W, Yu C, Yan S, Lei L, Qiu S, Lin X, Feng T, Shi J, Zhang Q, Liang H, Liu X, Lee APW, Zheng L, Zhang X, Xiu J. LncRNA MFRL regulates the phenotypic switch of vascular smooth muscle cells to attenuate arterial remodeling by encoding a novel micropeptide MFRLP. Transl Res 2024:S1931-5244(24)00109-9. [PMID: 38838852 DOI: 10.1016/j.trsl.2024.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 05/14/2024] [Accepted: 05/22/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Arterial remodeling is a common pathophysiological change in the pathogenesis of cardiovascular diseases in which the phenotypic switch of vascular smooth muscle cells (VSMC) plays an important role. Recently, an increasing number of long non-coding RNAs(lncRNAs) have been shown to encode micropeptides that play biological roles and have great clinical transformation potential. However, the role of micropeptides encoded by lncRNAs in arterial remodeling has not been well studied and requires further exploration. METHODS AND RESULTS Through bioinformatic analysis and experimental verification, we found that a new lncRNA, the mitochondrial function-related lncRNA (MFRL), encodes a 64-amino acid micropeptide, MFRLP. MFRL and MFRLP play important roles in the phenotypic switch of VSMC. Further experiments showed that MFRLP interacts with mitochondrial cytochrome b to reduce accumulation of reactive oxygen species, suppress mitophagy and inhibit the VSMC switch from contractile to synthetic phenotype. CONCLUSIONS LncRNA MFRL encodes the micropeptide MFRLP, which interacts with mitochondrial cytochrome b to inhibit the VSMC switch from contractile to synthetic phenotype and improve arterial remodeling.
Collapse
Affiliation(s)
- Xiaocong Liu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Siyu Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Wei Luo
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Chen Yu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shaohua Yan
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Li Lei
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shifeng Qiu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinxin Lin
- Department of Critical Care Medicine, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350000, China
| | - Ting Feng
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jinglin Shi
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qiuxia Zhang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hongbin Liang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xuewei Liu
- Affiliated Dongguan Hospital, Southern Medical University, Dongguan 523059, China
| | - Alex Pui-Wai Lee
- Department of Medicine & Therapeutics, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong 999077, China
| | - Lei Zheng
- Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xinlu Zhang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Jiancheng Xiu
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| |
Collapse
|
3
|
Ahn J, Lee JW, Nam SM, Kim DK, Cho SK, Choi HK. Integrative multi-omics analysis reveals ortho-topolin riboside exhibits anticancer activity by regulating metabolic pathways in radio-resistant triple negative breast cancer cells. Chem Biol Interact 2024:111089. [PMID: 38823535 DOI: 10.1016/j.cbi.2024.111089] [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: 12/19/2023] [Revised: 04/07/2024] [Accepted: 05/29/2024] [Indexed: 06/03/2024]
Abstract
Radio-resistant triple negative breast cancer (TNBC) is resistant to conventional drugs and radiation therapy. ortho-topolin riboside (oTR) has been evaluated for its anticancer activity in several types of cancer cells. However, its anti-proliferative activity in radio-resistant TNBC cells has not yet been reported. Therefore, we investigated the anti-proliferative activity of oTR in radio-resistant TNBC cells, and performed metabolome, lipidome, transcriptome, and proteome profiling to reveal the mechanisms of the anticancer activity of oTR. oTR showed cytotoxicity against radio-resistant TNBC cells with an inhibitory concentration (IC50) value of 7.78 μM. Significantly decreased (p value < 0.05) basal and compensatory glycolysis were observed in the oTR-treated group than untreated group. Mitochondrial spare respiratory capacity, which is relevant to cell fitness and flexibility, was significantly decreased (p value < 0.05) in the oTR-treated group. The major metabolic pathways significantly altered by oTR according to metabolome, transcriptome, and proteome profiles were the glycerolipid/glycerophospholipid pathway (log2(FC) of MGLL = -0.13, log2(FC) of acylglycerol lipase = -1.35, log2(FC) of glycerol = -0.81), glycolysis (log2(FC) of EGLN1 = 0.16, log2(FC) of EGLN1 = 0.62, log2(FC) of glucose = -0.76, log2(FC) of lactate = -0.81), and kynurenine pathway (log2(FC) of KYNU = 0.29, log2(FC) of kynureninase = 0.55, log2(FC) of alanine = 0.72). Additionally, proline metabolism (log2(FC) of PYCR1 = -0.17, log2(FC) of proline = -0.73) was significantly altered in the metabolomic and transcriptomic profiles. The MAPK signaling pathway (log2(FC) of CCN1 = -0.15, log2(FC) of CCN family member 1 = -1.02) and Rap 1 signaling pathway (log2(FC) of PARD6B = -0.28, log2(FC) of PAR6B = -3.13) were also significantly altered in transcriptomic and proteomic profiles. The findings of this study revealed that oTR has anticancer activity in radio-resistant TNBC cells by affecting various metabolic pathways, suggesting the potential of oTR as a novel anticancer agent for radio-resistant TNBC patients.
Collapse
Affiliation(s)
- Junyoung Ahn
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Ji Won Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Seung Min Nam
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Dae Kyeong Kim
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Somi Kim Cho
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea; Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea.
| | - Hyung-Kyoon Choi
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea.
| |
Collapse
|
4
|
Slade L, Deane CS, Szewczyk NJ, Etheridge T, Whiteman M. Hydrogen sulfide supplementation as a potential treatment for primary mitochondrial diseases. Pharmacol Res 2024; 203:107180. [PMID: 38599468 DOI: 10.1016/j.phrs.2024.107180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 04/06/2024] [Accepted: 04/06/2024] [Indexed: 04/12/2024]
Abstract
Primary mitochondrial diseases (PMD) are amongst the most common inborn errors of metabolism causing fatal outcomes within the first decade of life. With marked heterogeneity in both inheritance patterns and physiological manifestations, these conditions present distinct challenges for targeted drug therapy, where effective therapeutic countermeasures remain elusive within the clinic. Hydrogen sulfide (H2S)-based therapeutics may offer a new option for patient treatment, having been proposed as a conserved mitochondrial substrate and post-translational regulator across species, displaying therapeutic effects in age-related mitochondrial dysfunction and neurodegenerative models of mitochondrial disease. H2S can stimulate mitochondrial respiration at sites downstream of common PMD-defective subunits, augmenting energy production, mitochondrial function and reducing cell death. Here, we highlight the primary signalling mechanisms of H2S in mitochondria relevant for PMD and outline key cytoprotective proteins/pathways amenable to post-translational restoration via H2S-mediated persulfidation. The mechanisms proposed here, combined with the advent of potent mitochondria-targeted sulfide delivery molecules, could provide a framework for H2S as a countermeasure for PMD disease progression.
Collapse
Affiliation(s)
- Luke Slade
- University of Exeter Medical School, University of Exeter, St. Luke's Campus, Exeter EX1 2LU, UK; Leibniz-Institut für Analytische Wissenschaften-ISAS-e.V, Dortmund, Germany
| | - Colleen S Deane
- Human Development & Health, Faculty of Medicine, University of Southampton, Southampton General Hospital, Southampton, UK
| | - Nathaniel J Szewczyk
- Medical Research Council Versus Arthritis Centre for Musculoskeletal Ageing Research, Royal Derby Hospital, University of Nottingham, Derby DE22 3DT, United Kingdom; Ohio Musculoskeletal and Neurologic Institute, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio 45701, Greece
| | - Timothy Etheridge
- Public Health and Sport Sciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX1 2LU, United Kingdom.
| | - Matthew Whiteman
- University of Exeter Medical School, University of Exeter, St. Luke's Campus, Exeter EX1 2LU, UK.
| |
Collapse
|
5
|
Yao X, Lu Q, Wu Y, Liu J, Liu N, Huang X, Xu C. Effect of Elamipretide on the Vitrification of Mouse Ovarian Tissue by Freezing. Biopreserv Biobank 2024. [PMID: 38648553 DOI: 10.1089/bio.2023.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024] Open
Abstract
The importance of ovarian cortical cryopreservation in fertility preservation is receiving increasing attention from reproductive specialists, and mitochondrial dysfunction is an important cause of reduced ovarian tissue cryopreservation. Elamipretide (SS-31) is a novel mitochondria-targeted antioxidant. However, whether it has a protective effect on mouse ovarian tissue cryopreservation remains to be studied. In this study, we examined follicular morphology and viability, mitochondrial function and oxidative stress levels, apoptosis, and culture in vitro after vitrification cryoresuscitation operation by treating ovarian tissues with SS-31 in cryoprotectant resuscitation solution. At the end of the experiment, the addition of 100 μmol/L SS-31 significantly improved follicle quality and oocyte maturation rate in vitro (p < 0.05) and significantly reduced apoptosis (p < 0.05) and oxidative stress levels (superoxide dismutase, catalase, malondialdehyde, p < 0.05). Meanwhile, mitochondrial respiratory chain complex enzyme activity, mtDNA copy number (p < 0.05), and adenosine triphosphate (p < 0.05) content were significantly increased in the 100 μmol/L SS-31-treated group. In addition, the mRNA expression levels of mitochondrial energy metabolism- and biosynthesis-related genes (STRT1, PGC-1a, PPAR-a, TFAM, p < 0.05) were markedly upregulated (p < 0.05) in the 100 μmol/L SS-31 group. In conclusion, SS-31 improved the cryopreservation of ovarian tissues, and 100 μmol/L SS-31 was found to be the most effective.
Collapse
Affiliation(s)
- Xingfeng Yao
- Medical College, Guangxi University, Nanning, China
| | - Qingfang Lu
- Medical College, Guangxi University, Nanning, China
| | - Yuyin Wu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Juan Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Niang Liu
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Xiling Huang
- College of Animal Science and Technology, Guangxi University, Nanning, China
| | - Changlong Xu
- Reproductive Medical Center of Nanning Second People's Hospital, Nanning, China
| |
Collapse
|
6
|
Whitcomb LA, Cao X, Thomas D, Wiese C, Pessin AS, Zhang R, Wu JC, Weil MM, Chicco AJ. Mitochondrial reactive oxygen species impact human fibroblast responses to protracted γ-ray exposures. Int J Radiat Biol 2024; 100:890-902. [PMID: 38631047 DOI: 10.1080/09553002.2024.2338518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Accepted: 03/26/2024] [Indexed: 04/19/2024]
Abstract
Purpose: Continuous exposure to ionizing radiation at a low dose rate poses significant health risks to humans on deep space missions, prompting the need for mechanistic studies to identify countermeasures against its deleterious effects. Mitochondria are a major subcellular locus of radiogenic injury, and may trigger secondary cellular responses through the production of reactive oxygen species (mtROS) with broader biological implications. Methods and Materials: To determine the contribution of mtROS to radiation-induced cellular responses, we investigated the impacts of protracted γ-ray exposures (IR; 1.1 Gy delivered at 0.16 mGy/min continuously over 5 days) on mitochondrial function, gene expression, and the protein secretome of human HCA2-hTERT fibroblasts in the presence and absence of a mitochondria-specific antioxidant mitoTEMPO (MT; 5 µM). Results: IR increased fibroblast mitochondrial oxygen consumption (JO2) and H2O2 release rates (JH2O2) under energized conditions, which corresponded to higher protein expression of NADPH Oxidase (NOX) 1, NOX4, and nuclear DNA-encoded subunits of respiratory chain Complexes I and III, but depleted mtDNA transcripts encoding subunits of the same complexes. This was associated with activation of gene programs related to DNA repair, oxidative stress, and protein ubiquination, all of which were attenuated by MT treatment along with radiation-induced increases in JO2 and JH2O2. IR also increased secreted levels of interleukin-8 and Type I collagens, while decreasing Type VI collagens and enzymes that coordinate assembly and remodeling of the extracellular matrix. MT treatment attenuated many of these effects while augmenting others, revealing complex effects of mtROS in fibroblast responses to IR. Conclusion: These results implicate mtROS production in fibroblast responses to protracted radiation exposure, and suggest potentially protective effects of mitochondrial-targeted antioxidants against radiogenic tissue injury in vivo.
Collapse
Affiliation(s)
- Luke A Whitcomb
- Department of Biomedical Sciences, Colorado State University, CO, USA
| | - Xu Cao
- Stanford Cardiovascular Institute, Stanford University, Palo Alto, CA, USA
| | - Dilip Thomas
- Stanford Cardiovascular Institute, Stanford University, Palo Alto, CA, USA
| | - Claudia Wiese
- Department of Environmental and Radiological Health Sciences, Colorado State University, CO, USA
| | - Alissa S Pessin
- Department of Biomedical Sciences, Colorado State University, CO, USA
| | - Robert Zhang
- Department of Biomedical Sciences, Colorado State University, CO, USA
| | - Joseph C Wu
- Stanford Cardiovascular Institute, Stanford University, Palo Alto, CA, USA
| | - Michael M Weil
- Department of Environmental and Radiological Health Sciences, Colorado State University, CO, USA
| | - Adam J Chicco
- Department of Biomedical Sciences, Colorado State University, CO, USA
| |
Collapse
|
7
|
Bahety D, Böke E, Rodríguez-Nuevo A. Mitochondrial morphology, distribution and activity during oocyte development. Trends Endocrinol Metab 2024:S1043-2760(24)00064-X. [PMID: 38599901 DOI: 10.1016/j.tem.2024.03.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/06/2024] [Accepted: 03/08/2024] [Indexed: 04/12/2024]
Abstract
Mitochondria have a crucial role in cellular function and exhibit remarkable plasticity, adjusting both their structure and activity to meet the changing energy demands of a cell. Oocytes, female germ cells that become eggs, undergo unique transformations: the extended dormancy period, followed by substantial increase in cell size and subsequent maturation involving the segregation of genetic material for the next generation, present distinct metabolic challenges necessitating varied mitochondrial adaptations. Recent findings in dormant oocytes challenged the established respiratory complex hierarchies and underscored the extent of mitochondrial plasticity in long-lived oocytes. In this review, we discuss mitochondrial adaptations observed during oocyte development across three vertebrate species (Xenopus, mouse, and human), emphasising current knowledge, acknowledging limitations, and outlining future research directions.
Collapse
Affiliation(s)
- Devesh Bahety
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Elvan Böke
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain; Universitat Pompeu Fabra (UPF), Barcelona, Spain.
| | - Aida Rodríguez-Nuevo
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain.
| |
Collapse
|
8
|
Lewandowska J, Kalenik B, Wrzosek A, Szewczyk A. Redox Regulation of Mitochondrial Potassium Channels Activity. Antioxidants (Basel) 2024; 13:434. [PMID: 38671882 PMCID: PMC11047711 DOI: 10.3390/antiox13040434] [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: 03/13/2024] [Revised: 03/29/2024] [Accepted: 03/30/2024] [Indexed: 04/28/2024] Open
Abstract
Redox reactions exert a profound influence on numerous cellular functions with mitochondria playing a central role in orchestrating these processes. This pivotal involvement arises from three primary factors: (1) the synthesis of reactive oxygen species (ROS) by mitochondria, (2) the presence of a substantial array of redox enzymes such as respiratory chain, and (3) the responsiveness of mitochondria to the cellular redox state. Within the inner mitochondrial membrane, a group of potassium channels, including ATP-regulated, large conductance calcium-activated, and voltage-regulated channels, is present. These channels play a crucial role in conditions such as cytoprotection, ischemia/reperfusion injury, and inflammation. Notably, the activity of mitochondrial potassium channels is intricately governed by redox reactions. Furthermore, the regulatory influence extends to other proteins, such as kinases, which undergo redox modifications. This review aims to offer a comprehensive exploration of the modulation of mitochondrial potassium channels through diverse redox reactions with a specific focus on the involvement of ROS.
Collapse
Affiliation(s)
| | | | | | - Adam Szewczyk
- Laboratory of Intracellular Ion Channels, Nencki Institute of Experimental Biology, Polish Academy of Sciences, 02-093 Warsaw, Poland; (J.L.); (B.K.); (A.W.)
| |
Collapse
|
9
|
Bravo Iniguez A, Du M, Zhu MJ. α-Ketoglutarate for Preventing and Managing Intestinal Epithelial Dysfunction. Adv Nutr 2024; 15:100200. [PMID: 38438107 PMCID: PMC11016550 DOI: 10.1016/j.advnut.2024.100200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/16/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024] Open
Abstract
The epithelium lining the intestinal tract serves a multifaceted role. It plays a crucial role in nutrient absorption and immune regulation and also acts as a protective barrier, separating underlying tissues from the gut lumen content. Disruptions in the delicate balance of the gut epithelium trigger inflammatory responses, aggravate conditions such as inflammatory bowel disease, and potentially lead to more severe complications such as colorectal cancer. Maintaining intestinal epithelial homeostasis is vital for overall health, and there is growing interest in identifying nutraceuticals that can strengthen the intestinal epithelium. α-Ketoglutarate, a metabolite of the tricarboxylic acid cycle, displays a variety of bioactive effects, including functioning as an antioxidant, a necessary cofactor for epigenetic modification, and exerting anti-inflammatory effects. This article presents a comprehensive overview of studies investigating the potential of α-ketoglutarate supplementation in preventing dysfunction of the intestinal epithelium.
Collapse
Affiliation(s)
| | - Min Du
- Department of Animal Sciences, Washington State University, Pullman, WA, United States
| | - Mei-Jun Zhu
- School of Food Science, Washington State University, Pullman, WA, United States.
| |
Collapse
|
10
|
Liu X, Wu L, Si Y, Zhai Y, Niu M, Han M, Su T. Regulating Effect of Exogenous α-Ketoglutarate on Ammonium Assimilation in Poplar. Molecules 2024; 29:1425. [PMID: 38611705 PMCID: PMC11012726 DOI: 10.3390/molecules29071425] [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: 02/28/2024] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 04/14/2024] Open
Abstract
Extensive industrial activities and anthropogenic agricultural practices have led to substantial ammonia release to the environment. Although croplands can act as ammonia sinks, reduced crop production under high concentrations of ammonium has been documented. Alpha-ketoglutarate (AKG) is a critical carbon source, displaying pleiotropic physiological functions. The objective of the present study is to disclose the potential of AKG to enhance ammonium assimilation in poplars. It showed that AKG application substantially boosted the height, biomass, and photosynthesis activity of poplars exposed to excessive ammonium. AKG also enhanced the activities of key enzymes involved in nitrogen assimilation: glutamine synthetase (GS) and glutamate synthase (GOGAT), elevating the content of amino acids, sucrose, and the tricarboxylic acid cycle (TCA) metabolites. Furthermore, AKG positively modulated key genes tied to glucose metabolism and ATP synthesis, while suppressing ATP-depleting genes. Correspondingly, both H+-ATPase activity and ATP content increased. These findings demonstrate that exogenously applying AKG improves poplar growth under a high level of ammonium treatment. AKG might function through sufficient carbon investment, which enhances the carbon-nitrogen balance and energy stability in poplars, promoting ammonium assimilation at high doses of ammonium. Our study provides novel insight into AKG's role in improving poplar growth in response to excess ammonia exposure.
Collapse
Affiliation(s)
- Xiaoning Liu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Liangdan Wu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Yujia Si
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Yujie Zhai
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Mingyi Niu
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Mei Han
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
| | - Tao Su
- Co-Innovation Center for Sustainable Forestry in Southern China, College of Life Sciences, Nanjing Forestry University, Nanjing 210037, China (Y.Z.)
- Key Laboratory of State Forestry Administration on Subtropical Forest Biodiversity Conservation, Nanjing Forestry University, Nanjing 210037, China
| |
Collapse
|
11
|
Bell G, Thoma A, Hargreaves IP, Lightfoot AP. The Role of Mitochondria in Statin-Induced Myopathy. Drug Saf 2024:10.1007/s40264-024-01413-9. [PMID: 38492173 DOI: 10.1007/s40264-024-01413-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/22/2024] [Indexed: 03/18/2024]
Abstract
Statins represent the primary therapy for combatting hypercholesterolemia and reducing mortality from cardiovascular events. Despite their pleiotropic effects in lowering cholesterol synthesis, circulating cholesterol, as well as reducing the risk of other systemic diseases, statins have adverse events in a small, but significant, population of treated patients. The most prominent of these adverse effects is statin-induced myopathy, which lacks precise definition but is characterised by elevations in the muscle enzyme creatine kinase alongside musculoskeletal complaints, including pain, weakness and fatigue. The exact aetiology of statin-induced myopathy remains to be elucidated, although impaired mitochondrial function is thought to be an important underlying cause. This may result from or be the consequence of several factors including statin-induced inhibition of coenzyme Q10 (CoQ10) biosynthesis, impaired Ca2+ signalling and modified reactive oxygen species (ROS) generation. The purpose of this review article is to provide an update on the information available linking statin therapy with mitochondrial dysfunction and to outline any mechanistic insights, which may be beneficial in the future treatment of myopathic adverse events.
Collapse
Affiliation(s)
- Gavin Bell
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK
| | - Anastasia Thoma
- Department of Biological Sciences, University of Cyprus, Nicosia, Cyprus
| | - Iain P Hargreaves
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, UK.
| | - Adam P Lightfoot
- Department of Life Sciences, Manchester Metropolitan University, Manchester, UK.
| |
Collapse
|
12
|
Rahane D, Dhingra T, Chalavady G, Datta A, Ghosh B, Rana N, Borah A, Saraf S, Bhattacharya P. Hypoxia and its effect on the cellular system. Cell Biochem Funct 2024; 42:e3940. [PMID: 38379257 DOI: 10.1002/cbf.3940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 02/22/2024]
Abstract
Eukaryotic cells utilize oxygen for different functions of cell organelles owing to cellular survival. A balanced oxygen homeostasis is an essential requirement to maintain the regulation of normal cellular systems. Any changes in the oxygen level are stressful and can alter the expression of different homeostasis regulatory genes and proteins. Lack of oxygen or hypoxia results in oxidative stress and formation of hypoxia inducible factors (HIF) and reactive oxygen species (ROS). Substantial cellular damages due to hypoxia have been reported to play a major role in various pathological conditions. There are different studies which demonstrated that the functions of cellular system are disrupted by hypoxia. Currently, study on cellular effects following hypoxia is an important field of research as it not only helps to decipher different signaling pathway modulation, but also helps to explore novel therapeutic strategies. On the basis of the beneficial effect of hypoxia preconditioning of cellular organelles, many therapeutic investigations are ongoing as a promising disease management strategy in near future. Hence, the present review discusses about the effects of hypoxia on different cellular organelles, mechanisms and their involvement in the progression of different diseases.
Collapse
Affiliation(s)
- Dipali Rahane
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Tannu Dhingra
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Guruswami Chalavady
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Aishika Datta
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Bijoyani Ghosh
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Nikita Rana
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Anupom Borah
- Cellular and Molecular Neurobiology Laboratory, Department of Life Science and Bioinformatics, Assam University, Silchar, Assam, India
| | - Shailendra Saraf
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| | - Pallab Bhattacharya
- Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gandhinagar, Gujarat, India
| |
Collapse
|
13
|
O'Brien JT, Jalilvand SP, Suji NA, Jupelly RK, Phensy A, Mwirigi JM, Elahi H, Price TJ, Kroener S. Elevations in the Mitochondrial Matrix Protein Cyclophilin D Correlate With Reduced Parvalbumin Expression in the Prefrontal Cortex of Patients With Schizophrenia. Schizophr Bull 2024:sbae016. [PMID: 38412332 DOI: 10.1093/schbul/sbae016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
BACKGROUND AND HYPOTHESIS Cognitive deficits in schizophrenia are linked to dysfunctions of the dorsolateral prefrontal cortex (DLPFC), including alterations in parvalbumin (PV)-expressing interneurons (PVIs). Redox dysregulation and oxidative stress may represent convergence points in the pathology of schizophrenia, causing dysfunction of GABAergic interneurons and loss of PV. Here, we show that the mitochondrial matrix protein cyclophilin D (CypD), a critical initiator of the mitochondrial permeability transition pore (mPTP) and modulator of the intracellular redox state, is altered in PVIs in schizophrenia. STUDY DESIGN Western blotting was used to measure CypD protein levels in postmortem DLPFC specimens of schizophrenic patients (n = 27) and matched comparison subjects with no known history of psychiatric or neurological disorders (n = 26). In a subset of this cohort, multilabel immunofluorescent confocal microscopy with unbiased stereological sampling methods were used to quantify (1) numbers of PVI across the cortical mantle (20 unaffected comparison, 14 schizophrenia) and (2) PV and CypD protein levels from PVIs in the cortical layers 2-4 (23 unaffected comparison, 18 schizophrenia). STUDY RESULTS In schizophrenic patients, the overall number of PVIs in the DLPFC was not significantly altered, but in individual PVIs of layers 2-4 PV protein levels decreased along a superficial-to-deep gradient when compared to unaffected comparison subjects. These laminar-specific PVI alterations were reciprocally linked to significant CypD elevations both in PVIs and total DLPFC gray matter. CONCLUSIONS Our findings support previously reported PVI anomalies in schizophrenia and suggest that CypD-mediated mPTP formation could be a potential contributor to PVI dysfunction in schizophrenia.
Collapse
Affiliation(s)
- John T O'Brien
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Sophia P Jalilvand
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Neha A Suji
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Rohan K Jupelly
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Aarron Phensy
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Juliet M Mwirigi
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Hajira Elahi
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Theodore J Price
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| | - Sven Kroener
- School of Behavioral and Brain Sciences, The University of Texas at Dallas, Richardson, TX, USA
| |
Collapse
|
14
|
Gupta N, Curcic M, Srivastava SK. Proguanil Suppresses Breast Tumor Growth In Vitro and In Vivo by Inducing Apoptosis via Mitochondrial Dysfunction. Cancers (Basel) 2024; 16:872. [PMID: 38473234 DOI: 10.3390/cancers16050872] [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: 11/27/2023] [Revised: 02/13/2024] [Accepted: 02/19/2024] [Indexed: 03/14/2024] Open
Abstract
Breast cancer, ranking as the second leading cause of female cancer-related deaths in the U.S., demands the exploration of innovative treatments. Repurposing FDA-approved drugs emerges as an expedited and cost-effective strategy. Our study centered on proguanil, an antimalarial drug, reveals notable anti-proliferative effects on diverse breast cancer cell lines, including those derived from patients. Proguanil-induced apoptosis was associated with a substantial increase in reactive oxygen species (ROS) production, leading to reduced mitochondrial membrane potential, respiration, and ATP production. Proguanil treatment upregulated apoptotic markers (Bax, p-H2AX, cleaved-caspase 3, 9, cleaved PARP) and downregulated anti-apoptotic proteins (bcl-2, survivin) in breast cancer cell lines. In female Balb/c mice implanted with 4T1 breast tumors, daily oral administration of 20 mg/kg proguanil suppressed tumor enlargement by 55%. Western blot analyses of proguanil-treated tumors supported the in vitro findings, demonstrating increased levels of p-H2AX, Bax, c-PARP, and c-caspase3 as compared to controls. Our results collectively highlight proguanil's anticancer efficacy in vitro and in vivo in breast cancer, prompting further consideration for clinical investigations.
Collapse
Affiliation(s)
- Nehal Gupta
- Department of Biomedical Sciences, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
| | - Marina Curcic
- Department of Immunotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, 1718 Pine Street, Abilene, TX 79601, USA
| | - Sanjay K Srivastava
- Department of Biomedical Sciences, Texas Tech University Health Sciences Center, Amarillo, TX 79106, USA
- Department of Immunotherapeutics and Biotechnology, Jerry H. Hodge School of Pharmacy, Texas Tech University Health Sciences Center, 1718 Pine Street, Abilene, TX 79601, USA
- Center for Tumor Immunology and Targeted Cancer Therapy, Texas Tech University Health Sciences Center, 1718 Pine Street, Abilene, TX 79601, USA
| |
Collapse
|
15
|
Edzeamey FJ, Ramchunder Z, Pourzand C, Anjomani Virmouni S. Emerging antioxidant therapies in Friedreich's ataxia. Front Pharmacol 2024; 15:1359618. [PMID: 38379897 PMCID: PMC10876797 DOI: 10.3389/fphar.2024.1359618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 01/25/2024] [Indexed: 02/22/2024] Open
Abstract
Friedreich's ataxia (FRDA) is a rare childhood neurologic disorder, affecting 1 in 50,000 Caucasians. The disease is caused by the abnormal expansion of the GAA repeat sequence in intron 1 of the FXN gene, leading to the reduced expression of the mitochondrial protein frataxin. The disease is characterised by progressive neurodegeneration, hypertrophic cardiomyopathy, diabetes mellitus and musculoskeletal deformities. The reduced expression of frataxin has been suggested to result in the downregulation of endogenous antioxidant defence mechanisms and mitochondrial bioenergetics, and the increase in mitochondrial iron accumulation thereby leading to oxidative stress. The confirmation of oxidative stress as one of the pathological signatures of FRDA led to the search for antioxidants which can be used as therapeutic modality. Based on this observation, antioxidants with different mechanisms of action have been explored for FRDA therapy since the last two decades. In this review, we bring forth all antioxidants which have been investigated for FRDA therapy and have been signed off for clinical trials. We summarise their various target points in FRDA disease pathway, their performances during clinical trials and possible factors which might have accounted for their failure or otherwise during clinical trials. We also discuss the limitation of the studies completed and propose possible strategies for combinatorial therapy of antioxidants to generate synergistic effect in FRDA patients.
Collapse
Affiliation(s)
- Fred Jonathan Edzeamey
- Ataxia Research Group, Division of Biosciences, Department of Life Sciences, College of Health, Medicine, and Life Sciences (CHMLS), Brunel University London, Uxbridge, United Kingdom
| | - Zenouska Ramchunder
- Ataxia Research Group, Division of Biosciences, Department of Life Sciences, College of Health, Medicine, and Life Sciences (CHMLS), Brunel University London, Uxbridge, United Kingdom
| | - Charareh Pourzand
- Department of Life Sciences, University of Bath, Bath, United Kingdom
- Centre for Therapeutic Innovation, University of Bath, Bath, United Kingdom
| | - Sara Anjomani Virmouni
- Ataxia Research Group, Division of Biosciences, Department of Life Sciences, College of Health, Medicine, and Life Sciences (CHMLS), Brunel University London, Uxbridge, United Kingdom
| |
Collapse
|
16
|
Liu J, Gao Z, Liu X. Mitochondrial dysfunction and therapeutic perspectives in osteoporosis. Front Endocrinol (Lausanne) 2024; 15:1325317. [PMID: 38370357 PMCID: PMC10870151 DOI: 10.3389/fendo.2024.1325317] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Accepted: 01/03/2024] [Indexed: 02/20/2024] Open
Abstract
Osteoporosis (OP) is a systemic skeletal disorder characterized by reduced bone mass and structural deterioration of bone tissue, resulting in heightened vulnerability to fractures due to increased bone fragility. This condition primarily arises from an imbalance between the processes of bone resorption and formation. Mitochondrial dysfunction has been reported to potentially constitute one of the most crucial mechanisms influencing the pathogenesis of osteoporosis. In essence, mitochondria play a crucial role in maintaining the delicate equilibrium between bone formation and resorption, thereby ensuring optimal skeletal health. Nevertheless, disruption of this delicate balance can arise as a consequence of mitochondrial dysfunction. In dysfunctional mitochondria, the mitochondrial electron transport chain (ETC) becomes uncoupled, resulting in reduced ATP synthesis and increased generation of reactive oxygen species (ROS). Reinforcement of mitochondrial dysfunction is further exacerbated by the accumulation of aberrant mitochondria. In this review, we investigated and analyzed the correlation between mitochondrial dysfunction, encompassing mitochondrial DNA (mtDNA) alterations, oxidative phosphorylation (OXPHOS) impairment, mitophagy dysregulation, defects in mitochondrial biogenesis and dynamics, as well as excessive ROS accumulation, with regards to OP (Figure 1). Furthermore, we explore prospective strategies currently available for modulating mitochondria to ameliorate osteoporosis. Undoubtedly, certain therapeutic strategies still require further investigation to ensure their safety and efficacy as clinical treatments. However, from a mitochondrial perspective, the potential for establishing effective and safe therapeutic approaches for osteoporosis appears promising.
Collapse
Affiliation(s)
- Jialing Liu
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhonghua Gao
- School of Medicine, Ezhou Vocational University, Ezhou, China
| | - Xiangjie Liu
- Department of Geriatrics, Liyuan Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| |
Collapse
|
17
|
Ongari G, Ghezzi C, Di Martino D, Pisani A, Terzaghi M, Avenali M, Valente EM, Cerri S, Blandini F. Impaired Mitochondrial Respiration in REM-Sleep Behavior Disorder: A Biomarker of Parkinson's Disease? Mov Disord 2024; 39:294-304. [PMID: 38006292 DOI: 10.1002/mds.29643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 09/26/2023] [Accepted: 10/09/2023] [Indexed: 11/27/2023] Open
Abstract
BACKGROUND Idiopathic rapid eye movement (REM) sleep behavior disorder (iRBD) is associated with prodromal Parkinson's disease (PD), but the mechanisms linking phenoconversion of iRBD to PD have not yet been clarified. Considering the association between mitochondrial dysfunction and sleep disturbances in PD, we explored mitochondrial activity in fibroblasts derived from iRBD patients to identify a biochemical profile that could mark the presence of impending neurodegeneration. METHODS The study involved 28 participants, divided into three groups: patients diagnosed with iRBD, PD patients converted from iRBD (RBD-PD), and healthy controls. We performed a comprehensive assessment of mitochondrial function, including an examination of mitochondrial morphology, analysis of mitochondrial protein expression levels by western blot, and measurement of mitochondrial respiration using the Seahorse XFe24 analyzer. RESULTS In basal conditions, mitochondrial respiration did not differ between iRBD and control fibroblasts, but when cells were challenged with a higher energy demand, iRBD fibroblasts exhibited a significant (P = 0.006) drop in maximal and spare respiration compared to controls. Interestingly, RBD-PD patients showed the same alterations with a further significant reduction in oxygen consumption linked to adenosine triphosphate production (P = 0.032). Moreover, RBD-PD patients exhibited a significant decrease in protein levels of complexes III (P = 0.02) and V (P = 0.002) compared to controls, along with fragmentation of the mitochondrial network. iRBD patients showed similar, but milder alterations. CONCLUSIONS Altogether, these findings suggest that mitochondrial dysfunctions in individuals with iRBD might predispose to worsening of the bioenergetic profile observed in RBD-PD patients, highlighting these alterations as potential predictors of phenoconversion to PD. © 2023 The Authors. Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.
Collapse
Affiliation(s)
- Gerardo Ongari
- Section of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Cristina Ghezzi
- Section of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Deborah Di Martino
- Section of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Antonio Pisani
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Unit of Movement Disorders, IRCCS Mondino Foundation, Pavia, Italy
| | - Michele Terzaghi
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Section of Sleep Medicine and Epilepsy, IRCCS Mondino Foundation, Pavia, Italy
| | - Micol Avenali
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- Neurorehabilitation Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Enza Maria Valente
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- Neurogenetics Unit, IRCCS Mondino Foundation, Pavia, Italy
| | - Silvia Cerri
- Section of Cellular and Molecular Neurobiology, IRCCS Mondino Foundation, Pavia, Italy
| | - Fabio Blandini
- Department of Brain and Behavioral Sciences, University of Pavia, Pavia, Italy
- IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| |
Collapse
|
18
|
Ismaeel A, McDermott MM, Joshi JK, Sturgis JC, Zhang D, Ho KJ, Sufit R, Ferrucci L, Peterson CA, Kosmac K. Cocoa flavanols, Nrf2 activation, and oxidative stress in peripheral artery disease: mechanistic findings in muscle based on outcomes from a randomized trial. Am J Physiol Cell Physiol 2024; 326:C589-C605. [PMID: 38189132 DOI: 10.1152/ajpcell.00573.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/23/2023] [Accepted: 12/23/2023] [Indexed: 01/09/2024]
Abstract
The pathophysiology of muscle damage in peripheral artery disease (PAD) includes increased oxidant production and impaired antioxidant defenses. Epicatechin (EPI), a naturally occurring flavanol, has antioxidant properties that may mediate the beneficial effects of natural products such as cocoa. In a phase II randomized trial, a cocoa-flavanol-rich beverage significantly improved walking performance compared with a placebo in people with PAD. In the present work, the molecular mechanisms underlying the therapeutic effect of cocoa flavanols were investigated by analyzing baseline and follow-up muscle biopsies from participants. Increases in nuclear factor erythroid 2-related factor 2 (Nrf2) target antioxidants heme oxygenase-1 (HO-1) and NAD(P)H dehydrogenase [quinone] 1 (NQO1) in the cocoa group were significantly associated with reduced accumulation of central nuclei, a myopathy indicator, in type II muscle fibers (P = 0.017 and P = 0.023, respectively). Protein levels of the mitochondrial respiratory complex III subunit, cytochrome b-c1 complex subunit 2 (UQCRC2), were significantly higher in the cocoa group than in the placebo group (P = 0.032), and increases in UQCRC2 were significantly associated with increased levels of Nrf2 target antioxidants HO-1 and NQO1 (P = 0.001 and P = 0.035, respectively). Exposure of non-PAD human myotubes to ex vivo serum from patients with PAD reduced Nrf2 phosphorylation, an indicator of activation, increased hydrogen peroxide production and oxidative stress, and reduced mitochondrial respiration. Treatment of myotubes with EPI in the presence of serum from patients with PAD increased Nrf2 phosphorylation and protected against PAD serum-induced oxidative stress and mitochondrial dysfunction. Overall, these findings suggest that cocoa flavanols may enhance antioxidant capacity in PAD via Nrf2 activation.NEW & NOTEWORTHY The current study supports the hypothesis that in people with PAD, cocoa flavanols activate Nrf2, thereby increasing antioxidant protein levels, protecting against skeletal muscle damage, and increasing mitochondrial protein abundance. These results suggest that Nrf2 activation may be an important therapeutic target for improving walking performance in people with PAD.
Collapse
Affiliation(s)
- Ahmed Ismaeel
- Deparment of Physiology, University of Kentucky, Lexington, Kentucky, United States
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States
| | - Mary M McDermott
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Jai K Joshi
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky, United States
| | - Jada C Sturgis
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky, United States
| | - Dongxue Zhang
- Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Karen J Ho
- Department of Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Robert Sufit
- Department of Neurology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States
| | - Luigi Ferrucci
- National Institute on Aging, Intramural Research Program, Baltimore, Maryland, United States
| | - Charlotte A Peterson
- Center for Muscle Biology, University of Kentucky, Lexington, Kentucky, United States
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky, United States
| | - Kate Kosmac
- Department of Physical Therapy, Augusta University, Augusta, Georgia, United States
| |
Collapse
|
19
|
Bennett NK, Lee M, Orr AL, Nakamura K. Systems-level analyses dissociate genetic regulators of reactive oxygen species and energy production. Proc Natl Acad Sci U S A 2024; 121:e2307904121. [PMID: 38207075 PMCID: PMC10801874 DOI: 10.1073/pnas.2307904121] [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: 05/24/2023] [Accepted: 11/20/2023] [Indexed: 01/13/2024] Open
Abstract
Respiratory chain dysfunction can decrease ATP and increase reactive oxygen species (ROS) levels. Despite the importance of these metabolic parameters to a wide range of cellular functions and disease, we lack an integrated understanding of how they are differentially regulated. To address this question, we adapted a CRISPRi- and FACS-based platform to compare the effects of respiratory gene knockdown on ROS to their effects on ATP. Focusing on genes whose knockdown is known to decrease mitochondria-derived ATP, we showed that knockdown of genes in specific respiratory chain complexes (I, III, and CoQ10 biosynthesis) increased ROS, whereas knockdown of other low ATP hits either had no impact (mitochondrial ribosomal proteins) or actually decreased ROS (complex IV). Moreover, although shifting metabolic conditions profoundly altered mitochondria-derived ATP levels, it had little impact on mitochondrial or cytosolic ROS. In addition, knockdown of a subset of complex I subunits-including NDUFA8, NDUFB4, and NDUFS8-decreased complex I activity, mitochondria-derived ATP, and supercomplex level, but knockdown of these genes had differential effects on ROS. Conversely, we found an essential role for ether lipids in the dynamic regulation of mitochondrial ROS levels independent of ATP. Thus, our results identify specific metabolic regulators of cellular ATP and ROS balance that may help dissect the roles of these processes in disease and identify therapeutic strategies to independently target energy failure and oxidative stress.
Collapse
Affiliation(s)
- Neal K. Bennett
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
| | - Megan Lee
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
| | - Adam L. Orr
- Appel Alzheimer's Disease Research Institute, Weill Cornell Medicine, New York, NY10021
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY10021
| | - Ken Nakamura
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA94158
- Aligning Science Across Parkinson’s Collaborative Research Network, Chevy Chase, MD20815
- Graduate Program in Biomedical Sciences, University of California, San Francisco, CA94143
- Graduate Program in Neuroscience, University of California San Francisco, San Francisco, CA94158
- Department of Neurology, University of California, San Francisco, CA94158
| |
Collapse
|
20
|
Abedi H, Shahpiri A. Functional characterization of a manganese superoxide dismutase from Avicennia marina: insights into its role in salt, hydrogen peroxide, and heavy metal tolerance. Sci Rep 2024; 14:406. [PMID: 38172216 PMCID: PMC10764323 DOI: 10.1038/s41598-023-50851-5] [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: 05/29/2023] [Accepted: 12/27/2023] [Indexed: 01/05/2024] Open
Abstract
Avicennia marina is a salt-tolerance plant with high antioxidant and antibacterial potential. In the present work, a gene encoding MnSOD from Avicennia marina (AmSOD2) was cloned in the expression vectors pET28a. The resulting constructs were transformed into Escherichia coli strains Rosetta (DE3). Following the induction with Isopropyl β-D-1-thiogalactopyranoside, the protein His-AmSOD2 was expressed but dominantly found in the insoluble fraction of strain R-AmSOD2. Due to detection of mitochondrial transit peptide in the amino acid sequence of AmSOD2, the transit peptide was removed and AmSOD2 without transit peptide (tAmSOD2) was expressed in E. coli and dominantly found in the soluble fraction. The enzyme His-tAmSOD2 exhibited a molecular mass of 116 kDa in native condition. Nevertheless, in reducing conditions the molecular mass is 28 kDa indicating the enzyme His-tAmSOD2 is a tetramer protein. As shown by ICP analysis there is one mole Mn2+ in each monomer. The Pure His-tAmSOD2 was highly active in vitro, however the activity was almost three-fold lower than His-AmSOD1. Whereas the high stability of the recombinant His-AmSOD1was previously shown after incubation in a broad range pH and high temperature, His-tAmSOD2 was stable up to 50 °C and pH 6 for 1 h. The gene expression analysis showed that the gene encoding AmSOD2 is expressed in root, shoot and leaves of A. marina. In addition, the results show that the expression in the leaves was enhanced after treatment of plant with NaCl, H2O2, Cd2+ and Ni2+ indicating the important role of MnSOD in the resistant mechanism of mangroves.
Collapse
Affiliation(s)
- Hamid Abedi
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Azar Shahpiri
- Department of Biotechnology, College of Agriculture, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
| |
Collapse
|
21
|
Moreira R, Martins AD, Ferreira R, Alves MG, Pereira MDL, Oliveira PF. Impact of Chromium Picolinate on Leydig Cell Steroidogenesis and Antioxidant Balance Using an In Vitro Insulin Resistance Model. Antioxidants (Basel) 2023; 13:40. [PMID: 38247463 PMCID: PMC10812815 DOI: 10.3390/antiox13010040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 01/23/2024] Open
Abstract
Leydig cells (LCs) play a pivotal role in male fertility, producing testosterone. Chromium (III) picolinate (CrPic3), a contentious supplement with antidiabetic and antioxidant properties, raises concerns regarding male fertility. Using a rodent LC line, we investigated the cytotoxicity of increasing CrPic3 doses. An insulin resistance (IR) model was established using palmitate (PA), and LCs were further exposed to CrPic3 to assess its antioxidant/antidiabetic activities. An exometabolome analysis was performed using 1H-NMR. Mitochondrial function and oxidative stress were evaluated via immunoblot. Steroidogenesis was assessed by quantifying androstenedione through ELISA. Our results uncover the toxic effects of CrPic3 on LCs even at low doses under IR conditions. Furthermore, even under these IR conditions, CrPic3 fails to enhance glucose consumption but restores the expression of mitochondrial complexes CII and CIII, alleviating oxidative stress in LCs. While baseline androgen production remained unaffected, CrPic3 promoted androstenedione production in LCs in the presence of PA, suggesting that it promotes cholesterol conversion into androgenic intermediates in this context. This study highlights the need for caution with CrPic3 even at lower doses. It provides valuable insights into the intricate factors influencing LCs metabolism and antioxidant defenses, shedding light on potential benefits and risks of CrPic3, particularly in IR conditions.
Collapse
Affiliation(s)
- Rúben Moreira
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.); (R.F.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Ana D. Martins
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.); (R.F.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Rita Ferreira
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.); (R.F.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marco G. Alves
- iBiMED-Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Maria de Lourdes Pereira
- CICECO-Aveiro Institute of Materials, University of Aveiro, 3810-193 Aveiro, Portugal;
- Department of Medical Sciences, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Pedro F. Oliveira
- Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (R.M.); (A.D.M.); (R.F.)
- LAQV-REQUIMTE, University of Aveiro, 3810-193 Aveiro, Portugal
| |
Collapse
|
22
|
Shi Y, Jiang Y, Qiu H, Hu D, Song X. Mitochondrial dysfunction induced by bedaquiline as an anti-Toxoplasma alternative. Vet Res 2023; 54:123. [PMID: 38115043 PMCID: PMC10731829 DOI: 10.1186/s13567-023-01252-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 09/29/2023] [Indexed: 12/21/2023] Open
Abstract
Toxoplasma gondii is a zoonotic parasite that infects one-third of the world's population and nearly all warm-blooded animals. Due to the complexity of T. gondii's life cycle, available treatment options have limited efficacy. Thus, there is an urgent need to develop new compounds or repurpose existing drugs with potent anti-Toxoplasma activity. This study demonstrates that bedaquiline (BDQ), an FDA-approved diarylquinoline antimycobacterial drug for the treatment of tuberculosis, potently inhibits the tachyzoites of T. gondii. At a safe concentration, BDQ displayed a dose-dependent inhibition on T. gondii growth with a half-maximal effective concentration (EC50) of 4.95 μM. Treatment with BDQ significantly suppressed the proliferation of T. gondii tachyzoites in the host cell, while the invasion ability of the parasite was not affected. BDQ incubation shrunk the mitochondrial structure and decreased the mitochondrial membrane potential and ATP level of T. gondii parasites. In addition, BDQ induced elevated ROS and led to autophagy in the parasite. By transcriptomic analysis, we found that oxidative phosphorylation pathway genes were significantly disturbed by BDQ-treated parasites. More importantly, BDQ significantly reduces brain cysts for the chronically infected mice. These results suggest that BDQ has potent anti-T. gondii activity and may impair its mitochondrial function by affecting proton transport. This study provides bedaquiline as a potential alternative drug for the treatment of toxoplasmosis, and our findings may facilitate the development of new effective drugs for the treatment of toxoplasmosis.
Collapse
Affiliation(s)
- Yuehong Shi
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Yucong Jiang
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Haolong Qiu
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
| | - Dandan Hu
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, China
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, China
| | - Xingju Song
- College of Animal Science and Technology, Guangxi University, Nanning, 530004, China.
- Guangxi Zhuang Autonomous Region Engineering Research Center of Veterinary Biologics, Nanning, 530004, China.
- Guangxi Key Laboratory of Animal Breeding, Disease Control and Prevention, Nanning, 530004, China.
| |
Collapse
|
23
|
Dumitrescu A, Maxim C, Badea M, Rostas AM, Ciorîță A, Tirsoaga A, Olar R. Decavanadate-Bearing Guanidine Derivatives Developed as Antimicrobial and Antitumor Species. Int J Mol Sci 2023; 24:17137. [PMID: 38138964 PMCID: PMC10742724 DOI: 10.3390/ijms242417137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 11/29/2023] [Accepted: 12/02/2023] [Indexed: 12/24/2023] Open
Abstract
To obtain biologically active species, a series of decavanadates (Hpbg)4[H2V10O28]·6H2O (1) (Htbg)4[H2V10O28]·6H2O; (2) (Hgnd)2(Hgnu)4[V10O28]; (3) (Hgnu)6[V10O28]·2H2O; and (4) (pbg = 1-phenyl biguanide, tbg = 1-(o-tolyl)biguanide, gnd = guanidine, and gnu = guanylurea) were synthesized and characterized by several spectroscopic techniques (IR, UV-Vis, and EPR) as well as by single crystal X-ray diffraction. Compound (1) crystallizes in space group P-1 while (3) and (4) adopt the same centrosymmetric space group P21/n. The unusual signal identified by EPR spectroscopy was assigned to a charge-transfer π(O)→d(V) process. Both stability in solution and reactivity towards reactive oxygen species (O2- and OH·) were screened through EPR signal modification. All compounds inhibited the development of Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, and Enterococcus faecalis bacterial strains in a planktonic state at a micromolar level, the most active being compound (3). However, the experiments conducted at a minimal inhibitory concentration (MIC) indicated that the compounds do not disrupt the biofilm produced by these bacterial strains. The cytotoxicity assayed against A375 human melanoma cells and BJ human fibroblasts by testing the viability, lactate dehydrogenase, and nitric oxide levels indicated compound (1) as the most active in tumor cells.
Collapse
Affiliation(s)
- Andreea Dumitrescu
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Catalin Maxim
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Mihaela Badea
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| | - Arpad Mihai Rostas
- Department of Physics of Nanostructured Systems, National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat Str., 400293 Cluj-Napoca, Romania;
| | - Alexandra Ciorîță
- Department of Molecular Biology and Biotechnology, Faculty of Biology and Geology, Babeș-Bolyai University, 5-7 Clinicilor St., 400001 Cluj-Napoca, Romania
| | - Alina Tirsoaga
- Department of Analytical and Physical Chemistry, Faculty of Chemistry, University of Bucharest, 4-12 Regina Elisabeta Av., District 3, 030018 Bucharest, Romania;
| | - Rodica Olar
- Department of Inorganic and Organic Chemistry, Biochemistry and Catalysis, Faculty of Chemistry, University of Bucharest, 90-92 Panduri Str., District 5, 050663 Bucharest, Romania; (A.D.); (C.M.); (M.B.)
| |
Collapse
|
24
|
Kolar D, Krajcovic B, Kleteckova L, Kuncicka D, Vales K, Brozka H. Review: Genes Involved in Mitochondrial Physiology Within 22q11.2 Deleted Region and Their Relevance to Schizophrenia. Schizophr Bull 2023; 49:1637-1653. [PMID: 37379469 PMCID: PMC10686339 DOI: 10.1093/schbul/sbad066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/30/2023]
Abstract
BACKGROUND AND HYPOTHESIS Schizophrenia is associated with altered energy metabolism, but the cause and potential impact of these metabolic changes remain unknown. 22q11.2 deletion syndrome (22q11.2DS) represents a genetic risk factor for schizophrenia, which is associated with the loss of several genes involved in mitochondrial physiology. Here we examine how the haploinsufficiency of these genes could contribute to the emergence of schizophrenia in 22q11.2DS. STUDY DESIGN We characterize changes in neuronal mitochondrial function caused by haploinsufficiency of mitochondria-associated genes within the 22q11.2 region (PRODH, MRPL40, TANGO2, ZDHHC8, SLC25A1, TXNRD2, UFD1, and DGCR8). For that purpose, we combine data from 22q11.2DS carriers and schizophrenia patients, in vivo (animal models) and in vitro (induced pluripotent stem cells, IPSCs) studies. We also review the current knowledge about seven non-coding microRNA molecules located in the 22q11.2 region that may be indirectly involved in energy metabolism by acting as regulatory factors. STUDY RESULTS We found that the haploinsufficiency of genes of interest is mainly associated with increased oxidative stress, altered energy metabolism, and calcium homeostasis in animal models. Studies on IPSCs from 22q11.2DS carriers corroborate findings of deficits in the brain energy metabolism, implying a causal role between impaired mitochondrial function and the development of schizophrenia in 22q11.2DS. CONCLUSIONS The haploinsufficiency of genes within the 22q11.2 region leads to multifaceted mitochondrial dysfunction with consequences to neuronal function, viability, and wiring. Overlap between in vitro and in vivo studies implies a causal role between impaired mitochondrial function and the development of schizophrenia in 22q11.2DS.
Collapse
Affiliation(s)
- David Kolar
- National Institute of Mental Health, Klecany, Czech Republic
| | - Branislav Krajcovic
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
- Third Faculty of Medicine, Charles University, Prague, Czech Republic
| | | | - Daniela Kuncicka
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| | - Karel Vales
- National Institute of Mental Health, Klecany, Czech Republic
| | - Hana Brozka
- Institute of Physiology, Czech Academy of Sciences, Prague, Czech Republic
| |
Collapse
|
25
|
Potes Y, Díaz-Luis A, Bermejo-Millo JC, Pérez-Martínez Z, de Luxán-Delgado B, Rubio-González A, Menéndez-Valle I, Gutiérrez-Rodríguez J, Solano JJ, Caballero B, Vega-Naredo I, Coto-Montes A. Melatonin Alleviates the Impairment of Muscle Bioenergetics and Protein Quality Control Systems in Leptin-Deficiency-Induced Obesity. Antioxidants (Basel) 2023; 12:1962. [PMID: 38001815 PMCID: PMC10669624 DOI: 10.3390/antiox12111962] [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: 09/28/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/26/2023] Open
Abstract
Leptin is critically compromised in the major common forms of obesity. Skeletal muscle is the main effector tissue for energy modification that occurs as a result of the effect of endocrine axes, such as leptin signaling. Our study was carried out using skeletal muscle from a leptin-deficient animal model, in order to ascertain the importance of this hormone and to identify the major skeletal muscle mechanisms affected. We also examined the therapeutic role of melatonin against leptin-induced muscle wasting. Here, we report that leptin deficiency stimulates fatty acid β-oxidation, which results in mitochondrial uncoupling and the suppression of mitochondrial oxidative damage; however, it increases cytosolic oxidative damage. Thus, different nutrient-sensing pathways are disrupted, impairing proteostasis and promoting lipid anabolism, which induces myofiber degeneration and drives oxidative type I fiber conversion. Melatonin treatment plays a significant role in reducing cellular oxidative damage and regulating energy homeostasis and fuel utilization. Melatonin is able to improve both glucose and mitochondrial metabolism and partially restore proteostasis. Taken together, our study demonstrates melatonin to be a decisive mitochondrial function-fate regulator in skeletal muscle, with implications for resembling physiological energy requirements and targeting glycolytic type II fiber recovery.
Collapse
Affiliation(s)
- Yaiza Potes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Andrea Díaz-Luis
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
| | - Juan C. Bermejo-Millo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Zulema Pérez-Martínez
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Microbiology Service, Central University Hospital of Asturias, 33011 Oviedo, Spain
| | - Beatriz de Luxán-Delgado
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
| | - Adrian Rubio-González
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
| | - Iván Menéndez-Valle
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
- Immunology Service, Central University Hospital of Asturias, 33011 Oviedo, Spain
| | - José Gutiérrez-Rodríguez
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, 33012 Oviedo, Spain
| | - Juan J. Solano
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Geriatric Service, Monte Naranco Hospital, 33012 Oviedo, Spain
| | - Beatriz Caballero
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Ignacio Vega-Naredo
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
| | - Ana Coto-Montes
- Department of Morphology and Cell Biology, Faculty of Medicine, University of Oviedo, 33006 Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Institute of Neurosciences of the Principality of Asturias (INEUROPA), 33006 Oviedo, Spain
| |
Collapse
|
26
|
Li AL, Lian L, Chen XN, Cai WH, Fan XB, Fan YJ, Li TT, Xie YY, Zhang JP. The role of mitochondria in myocardial damage caused by energy metabolism disorders: From mechanisms to therapeutics. Free Radic Biol Med 2023; 208:236-251. [PMID: 37567516 DOI: 10.1016/j.freeradbiomed.2023.08.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 07/24/2023] [Accepted: 08/03/2023] [Indexed: 08/13/2023]
Abstract
Myocardial damage is the most serious pathological consequence of cardiovascular diseases and an important reason for their high mortality. In recent years, because of the high prevalence of systemic energy metabolism disorders (e.g., obesity, diabetes mellitus, and metabolic syndrome), complications of myocardial damage caused by these disorders have attracted widespread attention. Energy metabolism disorders are independent of traditional injury-related risk factors, such as ischemia, hypoxia, trauma, and infection. An imbalance of myocardial metabolic flexibility and myocardial energy depletion are usually the initial changes of myocardial injury caused by energy metabolism disorders, and abnormal morphology and functional destruction of the mitochondria are their important features. Specifically, mitochondria are the centers of energy metabolism, and recent evidence has shown that decreased mitochondrial function, caused by an imbalance in mitochondrial quality control, may play a key role in myocardial injury caused by energy metabolism disorders. Under chronic energy stress, mitochondria undergo pathological fission, while mitophagy, mitochondrial fusion, and biogenesis are inhibited, and mitochondrial protein balance and transfer are disturbed, resulting in the accumulation of nonfunctional and damaged mitochondria. Consequently, damaged mitochondria lead to myocardial energy depletion and the accumulation of large amounts of reactive oxygen species, further aggravating the imbalance in mitochondrial quality control and forming a vicious cycle. In addition, impaired mitochondria coordinate calcium homeostasis imbalance, and epigenetic alterations participate in the pathogenesis of myocardial damage. These pathological changes induce rapid progression of myocardial damage, eventually leading to heart failure or sudden cardiac death. To intervene more specifically in the myocardial damage caused by metabolic disorders, we need to understand the specific role of mitochondria in this context in detail. Accordingly, promising therapeutic strategies have been proposed. We also summarize the existing therapeutic strategies to provide a reference for clinical treatment and developing new therapies.
Collapse
Affiliation(s)
- Ao-Lin Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Lu Lian
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Xin-Nong Chen
- Department of Traditional Chinese Medicine, Tianjin First Central Hospital, Tianjin, 300190, China
| | - Wen-Hui Cai
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Xin-Biao Fan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Ya-Jie Fan
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Ting-Ting Li
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China; National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, 300193, China; Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China
| | - Ying-Yu Xie
- College of Traditional Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 300193, China.
| | - Jun-Ping Zhang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, 300183, China.
| |
Collapse
|
27
|
Borowiec BG, McDonald AE, Wilkie MP. Upstream migrant sea lamprey (Petromyzon marinus) show signs of increasing oxidative stress but maintain aerobic capacity with age. Comp Biochem Physiol A Mol Integr Physiol 2023; 285:111503. [PMID: 37586606 DOI: 10.1016/j.cbpa.2023.111503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 08/09/2023] [Accepted: 08/09/2023] [Indexed: 08/18/2023]
Abstract
Following the parasitic juvenile phase of their life cycle, sea lamprey (Petromyzon marinus) mature into a reproductive but rapidly aging and deteriorating adult, and typically die shortly after spawning in May or June. However, pre-spawning upstream migrant sea lamprey can be maintained for several months beyond their natural lifespan when held in cold water (∼4-8 °C) under laboratory conditions. We exploited this feature to investigate the interactions between senescence, oxidative stress, and metabolic function in this phylogenetically ancient fish. We investigated how life history traits and mitochondria condition, as indicated by markers of oxidative stress (catalase activity, lipid peroxidation) and aerobic capacity (citrate synthase activity), changed in adult sea lamprey from June to December after capture during their upstream spawning migration. Body mass but not liver mass declined with age, resulting in an increase in hepatosomatic index. Both effects were most pronounced in males, which also tended to have larger livers than females. Lamprey experienced greater oxidative stress with age, as reflected by increasing activity of the antioxidant enzyme catalase and increasing levels of lipid peroxidation in liver mitochondrial isolates over time. Surprisingly, the activity of citrate synthase also increased with age in both sexes. These observations implicate mitochondrial dysfunction and oxidative stress in the senescence of sea lamprey. Due to their unique evolutionary position and the technical advantage of easily delaying the onset of senescence in lampreys using cold water, these animals could represent an evolutionary unique and tractable model to investigate senescence in vertebrates.
Collapse
Affiliation(s)
| | - Allison E McDonald
- Department of Biology, Wilfrid Laurier University, Waterloo, Canada. https://twitter.com/AEMcDonaldWLU
| | - Michael P Wilkie
- Department of Biology, Wilfrid Laurier University, Waterloo, Canada
| |
Collapse
|
28
|
Bennett NK, Lee M, Orr AL, Nakamura K. Systems-level analyses dissociate genetic regulators of reactive oxygen species and energy production. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.14.562276. [PMID: 37904938 PMCID: PMC10614765 DOI: 10.1101/2023.10.14.562276] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Respiratory chain dysfunction can decrease ATP and increase reactive oxygen species (ROS) levels. Despite the importance of these metabolic parameters to a wide range of cellular functions and disease, we lack an integrated understanding of how they are differentially regulated. To address this question, we adapted a CRISPRi- and FACS- based platform to compare the effects of respiratory gene knockdown on ROS to their effects on ATP. Focusing on genes whose knockdown is known to decrease mitochondria-derived ATP, we showed that knockdown of genes in specific respiratory chain complexes (I, III and CoQ10 biosynthesis) increased ROS, whereas knockdown of other low ATP hits either had no impact (mitochondrial ribosomal proteins) or actually decreased ROS (complex IV). Moreover, although shifting metabolic conditions profoundly altered mitochondria-derived ATP levels, it had little impact on mitochondrial or cytosolic ROS. In addition, knockdown of a subset of complex I subunits-including NDUFA8, NDUFB4, and NDUFS8-decreased complex I activity, mitochondria-derived ATP and supercomplex level, but knockdown of these genes had differential effects on ROS. Conversely, we found an essential role for ether lipids in the dynamic regulation of mitochondrial ROS levels independent of ATP. Thus, our results identify specific metabolic regulators of cellular ATP and ROS balance that may help dissect the roles of these processes in disease and identify therapeutic strategies to independently target energy failure and oxidative stress.
Collapse
Affiliation(s)
- Neal K. Bennett
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
| | - Megan Lee
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815
| | - Adam L. Orr
- Appel Alzheimer’s Disease Research Institute, Weill Cornell Medicine, New York, NY, USA
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, New York, NY, USA
| | - Ken Nakamura
- Gladstone Institute of Neurological Disease, Gladstone Institutes, San Francisco, CA, 94158, USA
- Aligning Science Across Parkinson’s (ASAP) Collaborative Research Network, Chevy Chase, MD, 20815
- Graduate Programs in Neuroscience and Biomedical Sciences, University of California San Francisco, San Francisco, California, USA
- Department of Neurology, University of California, San Francisco, San Francisco, California, 94158, USA
| |
Collapse
|
29
|
Sahadevan R, Binoy A, Shajan I, Sadhukhan S. Mitochondria-targeting EGCG derivatives protect H9c2 cardiomyocytes from H 2O 2-induced apoptosis: design, synthesis and biological evaluation. RSC Adv 2023; 13:29477-29488. [PMID: 37818277 PMCID: PMC10561634 DOI: 10.1039/d3ra04527g] [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: 07/07/2023] [Accepted: 10/02/2023] [Indexed: 10/12/2023] Open
Abstract
Pathologies related to cardiovascular diseases mostly emerge as a result of oxidative stress buildup in cardiomyocytes. The heavy load of mitochondrial oxidative phosphorylation in cardiac tissues corresponds to a surge in oxidative stress leading to mitochondrial dysfunction and cellular apoptosis. Thus, scavenging the reactive oxygen species (ROS) linked to mitochondria can significantly improve cardio-protection. Epigallocatechin-3-gallate (EGCG), the major polyphenol found in green tea has been extensively studied for its profound health-beneficial activities. Herein, we designed and synthesized a series of mitochondrial-targeting EGCG derivatives, namely MitoEGCGn (n = 4, 6, 8) by incorporating triphenylphosphonium ion onto it using different linkers. MitoEGCGn were found to be non-toxic to H9c2 rat cardiomyocyte cells even at higher doses in comparison to its parent molecule EGCG. Interestingly, MitoEGCG4 and MitoEGCG6 protected the H9c2 cardiomyocyte cells from the oxidative damage induced by H2O2 whereas EGCG was found to be toxic and ineffective in protecting the cells from H2O2 damage. MitoEGCG4 and MitoEGCG6 also protected the cells from the H2O2-induced disruption of mitochondrial membrane potential as well as activation of apoptosis as revealed by pro-caspase 3 expression profile, DNA fragmentation assay, and AO/EtBr staining. Taken together, our study shows that the mitochondria targeting EGCG derivatives were able to effectively combat the H2O2-induced oxidative stress in H9c2 cardiomyocytes. They eventually augmented the mitochondrial health of cardiomyocytes by maintaining the mitochondrial function and attenuating apoptosis. Overall, MitoEGCG4 and MitoEGCG6 could provision a cardioprotective role to H9c2 cardiomyocytes at the time of oxidative insults related to mitochondrial dysfunction-associated injuries.
Collapse
Affiliation(s)
- Revathy Sahadevan
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India
| | - Anupama Binoy
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India
| | - Irene Shajan
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India
| | - Sushabhan Sadhukhan
- Department of Chemistry, Indian Institute of Technology Palakkad Kerala 678 623 India
- Physical & Chemical Biology Laboratory, Department of Biological Sciences & Engineering, Indian Institute of Technology Palakkad Kerala 678 623 India
| |
Collapse
|
30
|
Ferrara F, Pecorelli A, Valacchi G. Redox Regulation of Nucleotide-Binding and Oligomerization Domain-Like Receptors Inflammasome. Antioxid Redox Signal 2023; 39:744-770. [PMID: 37440315 DOI: 10.1089/ars.2022.0180] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 07/15/2023]
Abstract
Significance: Inflammasomes are multimeric complexes that, as part of the innate immune response, sense a wide range of pathogenic and sterile stimuli. They consist of three components, namely a sensor protein, an adaptor, and procaspase-1, which once activated result in secretion of proinflammatory interleukin (IL)-1β and IL-18 and, eventually, in a gasdermin D-dependent lytic cell death called pyroptosis. Recent Advances: Since their discovery 20 years ago, the molecular mechanisms underlying the regulation of inflammasomes have been extensively studied. Oxidative stress appears as a major contributor to modulate inflammasomes, especially NLRP3 as well as NLRP1, NLRP6, and NLRC4. Growing evidence supports the idea that the positive feedback between redox imbalance and inflammasome-driven inflammation fuels an OxInflammatory state in a variety of human pathologies. Critical Issues: The current knowledge about the redox signaling pathways involved in inflammasomes activation and functions are here highlighted. In addition, we discuss the role of this complex molecular network interaction in the onset and progression of pathological conditions including neurological and metabolic diseases as well as skin disorders, also with an insight on COVID-19-related pathology. Finally, the therapeutic strategies able to mitigate the redox-mediated inflammasome activation with synthetic and natural compounds as well as by acting on inflammasome-related post-translational modifications and microRNAs are also addressed. Future Directions: Further investigations leading to a deeper understanding of the reciprocal interaction between inflammasomes and reactive oxygen species will help identify other molecular targets for modulating their hyperactivated state, and to design novel therapeutics for chronic OxInflammatory conditions. Antioxid. Redox Signal. 39, 744-770.
Collapse
Affiliation(s)
- Francesca Ferrara
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Ferrara, Italy
| | - Alessandra Pecorelli
- Department of Environmental Sciences and Prevention, University of Ferrara, Ferrara, Italy
- Plants for Human Health Institute, Animal Science Dept., North Carolina State University, Kannapolis, North Carolina, USA
| | - Giuseppe Valacchi
- Department of Environmental Sciences and Prevention, University of Ferrara, Ferrara, Italy
- Plants for Human Health Institute, Animal Science Dept., North Carolina State University, Kannapolis, North Carolina, USA
- Department of Food and Nutrition, Kyung Hee University, Seoul, Republic of Korea
| |
Collapse
|
31
|
Chen Q, Thompson J, Hu Y, Lesnefsky EJ. Endoplasmic reticulum stress and alterations of peroxiredoxins in aged hearts. Mech Ageing Dev 2023; 215:111859. [PMID: 37661065 PMCID: PMC11103240 DOI: 10.1016/j.mad.2023.111859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 08/20/2023] [Accepted: 08/29/2023] [Indexed: 09/05/2023]
Abstract
Aging-related cardiovascular disease is influenced by multiple factors, with oxidative stress being a key contributor. Aging-induced endoplasmic reticulum (ER) stress exacerbates oxidative stress by impairing mitochondrial function. Furthermore, a decline in antioxidants, including peroxiredoxins (PRDXs), augments the oxidative stress during aging. To explore if ER stress leads to PRDX degradation during aging, young adult (3 mo.) and aged (24 mo.) male mice were studied. Treatment with 4-phenylbutyrate (4-PBA) was used to alleviate ER stress in young adult and aged mice. Aged hearts showed elevated oxidative stress levels compared to young hearts. However, treatment with 4-PBA to attenuate ER stress reduced oxidative stress in aged hearts, indicating that ER stress contributes to increased oxidative stress in aging. Moreover, aging resulted in reduced levels of peroxiredoxin 3 (PRDX3) in mitochondria and peroxiredoxin 4 (PRDX4) in myocardium. While 4-PBA treatment improved PRDX3 content in aged hearts, it did not restore PRDX4 content in aged mice. These findings suggest that ER stress not only leads to mitochondrial dysfunction and increased oxidant stress but also impairs a vital antioxidant defense through decreased PRDX3 content. Additionally, the results suggest that PRDX4 may contribute an upstream role in inducing ER stress during aging.
Collapse
Affiliation(s)
- Qun Chen
- Departments of Medicine (Division of Cardiology), Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Jeremy Thompson
- Departments of Medicine (Division of Cardiology), Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Ying Hu
- Departments of Medicine (Division of Cardiology), Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Edward J Lesnefsky
- Departments of Medicine (Division of Cardiology), Virginia Commonwealth University, Richmond, VA 23298, USA; Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, VA 23298, USA; Physiology and Biophysics, Virginia Commonwealth University, Richmond, VA 23298, USA; Richmond Department of Veterans Affairs Medical Center, Richmond, VA 23249, USA.
| |
Collapse
|
32
|
Kamel R, Baetz D, Gueguen N, Lebeau L, Barbelivien A, Guihot AL, Allawa L, Gallet J, Beaumont J, Ovize M, Henrion D, Reynier P, Mirebeau-Prunier D, Prunier F, Tamareille S. Kynurenic Acid: A Novel Player in Cardioprotection against Myocardial Ischemia/Reperfusion Injuries. Pharmaceuticals (Basel) 2023; 16:1381. [PMID: 37895852 PMCID: PMC10610491 DOI: 10.3390/ph16101381] [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: 08/22/2023] [Revised: 09/21/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Myocardial infarction is one of the leading causes of mortality worldwide; hence, there is an urgent need to discover novel cardioprotective strategies. Kynurenic acid (KYNA), a metabolite of the kynurenine pathway, has been previously reported to have cardioprotective effects. However, the mechanisms by which KYNA may be protective are still unclear. The current study addressed this issue by investigating KYNA's cardioprotective effect in the context of myocardial ischemia/reperfusion. METHODS H9C2 cells and rats were exposed to hypoxia/reoxygenation or myocardial infarction, respectively, in the presence or absence of KYNA. In vitro, cell death was quantified using flow cytometry analysis of propidium iodide staining. In vivo, TTC-Evans Blue staining was performed to evaluate infarct size. Mitochondrial respiratory chain complex activities were measured using spectrophotometry. Protein expression was evaluated by Western blot, and mRNA levels by RT-qPCR. RESULTS KYNA treatment significantly reduced H9C2-relative cell death as well as infarct size. KYNA did not exhibit any effect on the mitochondrial respiratory chain complex activity. SOD2 mRNA levels were increased by KYNA. A decrease in p62 protein levels together with a trend of increase in PARK2 may mark a stimulation of mitophagy. Additionally, ERK1/2, Akt, and FOXO3α phosphorylation levels were significantly reduced after the KYNA treatment. Altogether, KYNA significantly reduced myocardial ischemia/reperfusion injuries in both in vitro and in vivo models. CONCLUSION Here we show that KYNA-mediated cardioprotection was associated with enhanced mitophagy and antioxidant defense. A deeper understanding of KYNA's cardioprotective mechanisms is necessary to identify promising novel therapeutic targets and their translation into the clinical arena.
Collapse
Affiliation(s)
- Rima Kamel
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Delphine Baetz
- Laboratoire CarMeN, INSERM U1060, INRA U1397, Université Claude Bernard Lyon 1, F-69500 Bron, France; (D.B.); (M.O.)
| | - Naïg Gueguen
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
- Service de Biochimie et Biologie Moléculaire, CHU Angers, F-49000 Angers, France
| | - Lucie Lebeau
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Agnès Barbelivien
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Anne-Laure Guihot
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Louwana Allawa
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Jean Gallet
- Service de Cardiologie, CHU Angers, F-49000 Angers, France;
| | - Justine Beaumont
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Michel Ovize
- Laboratoire CarMeN, INSERM U1060, INRA U1397, Université Claude Bernard Lyon 1, F-69500 Bron, France; (D.B.); (M.O.)
- Service d’Explorations Fonctionnelles Cardiovasculaires & CIC de Lyon, Hôpital Louis Pradel, Hospices Civils de Lyon, F-69000 Lyon, France
| | - Daniel Henrion
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| | - Pascal Reynier
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
- Service de Biochimie et Biologie Moléculaire, CHU Angers, F-49000 Angers, France
| | - Delphine Mirebeau-Prunier
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
- Service de Biochimie et Biologie Moléculaire, CHU Angers, F-49000 Angers, France
| | - Fabrice Prunier
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
- Service de Cardiologie, CHU Angers, F-49000 Angers, France;
| | - Sophie Tamareille
- MITOVASC, SFR ICAT, CNRS 6015, INSERM U1083, Université d’Angers, F-49000 Angers, France; (R.K.); (N.G.); (L.L.); (A.-L.G.); (L.A.); (D.H.); (P.R.); (D.M.-P.); (F.P.)
| |
Collapse
|
33
|
Mordel P, Fontaine F, Dupas Q, Joubert M, Allouche S. Glucose fluctuation promotes mitochondrial dysfunctions in the cardiomyocyte cell line HL-1. PLoS One 2023; 18:e0289475. [PMID: 37733770 PMCID: PMC10513336 DOI: 10.1371/journal.pone.0289475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 07/19/2023] [Indexed: 09/23/2023] Open
Abstract
AIMS Glycemic variability has been suggested as a risk factor for diabetes complications but the precise deleterious mechanisms remain poorly understood. Since mitochondria are the main source of energy in heart and cardiovascular diseases remain the first cause of death in patients with diabetes, the aim of the study was to evaluate the impact of glucose swings on mitochondrial functions in the cardiomyocyte cell line HL-1. METHODS HL-1 cells were exposed to low (LG, 2.8 mmol/l), normal (NG, 5.5 mmol/l), high (HG, 25 mmol/l) or intermittent high glucose (IHG, swing between low and high) every 2h during 12h (short-time treatment) or every 12h during 72h (long-time treatment). Anaerobic catabolism of glucose was evaluated by measuring glucose consumption and lactate production, oxidative phosphorylation was evaluated by polarography and ATP measurement, mitochondrial superoxide anions and the mitochondrial membrane potential (MMP) were analysed using fluorescent probes, and the protein oxidation was measured by oxyblot. RESULTS IHG and HG increased glucose consumption and lactate production compared to LG and NG but without any difference between short- and long-time treatments. After 72h and unlike to LG, NG and HG, we didn't observe any increase of the mitochondrial respiration in the presence of succinate upon IHG treatment. IHG, and to a lesser extent HG, promoted a time-dependent decrease of the mitochondrial membrane potential compared to LG and NG treatments. HG and IHG also increased superoxide anion production compared to LG and NG both at 12 and 72h but with a higher increase for IHG at 72h. At last, both HG and IHG stimulated protein oxidation at 72h compared to LG and NG treatments. CONCLUSIONS Our results demonstrated that exposure of HL-1 cells to glucose swings promoted time-dependent mitochondrial dysfunctions suggesting a deleterious effect of such condition in patients with diabetes that could contribute to diabetic cardiomyopathy.
Collapse
Affiliation(s)
- Patrick Mordel
- Normandie University, UNICAEN, CHU Caen, Signalisation, Electrophysiologie et Imagerie des Lésions d’Ischémie-Reperfusion Myocardique, Caen, France
| | | | - Quentin Dupas
- Normandie University, UNICAEN, CHU Caen, Signalisation, Electrophysiologie et Imagerie des Lésions d’Ischémie-Reperfusion Myocardique, Caen, France
| | - Michael Joubert
- Normandie University, UNICAEN, CHU Caen, Signalisation, Electrophysiologie et Imagerie des Lésions d’Ischémie-Reperfusion Myocardique, Caen, France
- CHU de Caen, Diabetes Care Unit, Caen, France
| | - Stéphane Allouche
- Normandie University, UNICAEN, CHU Caen, Signalisation, Electrophysiologie et Imagerie des Lésions d’Ischémie-Reperfusion Myocardique, Caen, France
- Department of Biochemistry, CHU de Caen, Caen, France
| |
Collapse
|
34
|
Hunt M, Torres M, Bachar-Wikström E, Wikström JD. Multifaceted roles of mitochondria in wound healing and chronic wound pathogenesis. Front Cell Dev Biol 2023; 11:1252318. [PMID: 37771375 PMCID: PMC10523588 DOI: 10.3389/fcell.2023.1252318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/28/2023] [Indexed: 09/30/2023] Open
Abstract
Mitochondria are intracellular organelles that play a critical role in numerous cellular processes including the regulation of metabolism, cellular stress response, and cell fate. Mitochondria themselves are subject to well-orchestrated regulation in order to maintain organelle and cellular homeostasis. Wound healing is a multifactorial process that involves the stringent regulation of several cell types and cellular processes. In the event of dysregulated wound healing, hard-to-heal chronic wounds form and can place a significant burden on healthcare systems. Importantly, treatment options remain limited owing to the multifactorial nature of chronic wound pathogenesis. One area that has received more attention in recent years is the role of mitochondria in wound healing. With regards to this, current literature has demonstrated an important role for mitochondria in several areas of wound healing and chronic wound pathogenesis including metabolism, apoptosis, and redox signalling. Additionally, the influence of mitochondrial dynamics and mitophagy has also been investigated. However, few studies have utilised patient tissue when studying mitochondria in wound healing, instead using various animal models. In this review we dissect the current knowledge of the role of mitochondria in wound healing and discuss how future research can potentially aid in the progression of wound healing research.
Collapse
Affiliation(s)
- Matthew Hunt
- Dermatology and Venerology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Monica Torres
- Dermatology and Venerology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
- Dermato-Venereology Clinic, Karolinska University Hospital, Stockholm, Sweden
| | - Etty Bachar-Wikström
- Dermatology and Venerology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
| | - Jakob D. Wikström
- Dermatology and Venerology Division, Department of Medicine (Solna), Karolinska Institutet, Stockholm, Sweden
- Dermato-Venereology Clinic, Karolinska University Hospital, Stockholm, Sweden
| |
Collapse
|
35
|
Tsesmelis K, Maity‐Kumar G, Croner D, Sprissler J, Tsesmelis M, Hein T, Baumann B, Wirth T. Accelerated aging in mice with astrocytic redox imbalance as a consequence of SOD2 deletion. Aging Cell 2023; 22:e13911. [PMID: 37609868 PMCID: PMC10497807 DOI: 10.1111/acel.13911] [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: 01/12/2023] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 08/24/2023] Open
Abstract
Aging of the central nervous system (CNS) leads to motoric and cognitive decline and increases the probability for neurodegenerative disease development. Astrocytes fulfill central homeostatic functions in the CNS including regulation of immune responses and metabolic support of neurons and oligodendrocytes. In this study, we investigated the effect of redox imbalance in astrocytes by using a conditional astrocyte-specific SOD2-deficient mouse model (SOD2ako ) and analyzed these animals at different stages of their life. SOD2ako mice did not exhibit any overt phenotype within the first postnatal weeks. However, already as young adults, they displayed progressive motoric impairments. Moreover, as these mice grew older, they exhibited signs of a progeroid phenotype and early death. Histological analysis in moribund SOD2ako mice revealed the presence of age-related brain alterations, neuroinflammation, neuronal damage and myelin impairment in brain and spinal cord. Additionally, transcriptome analysis of primary astrocytes revealed that SOD2 deletion triggered a hypometabolic state and promoted polarization toward A1-neurotoxic status, possibly underlying the neuronal and myelin deficits. Conclusively, our study identifies maintenance of ROS homeostasis in astrocytes as a critical prerequisite for physiological CNS aging.
Collapse
Affiliation(s)
| | - Gandhari Maity‐Kumar
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
- Institute for Diabetes and ObesityHelmholtz Diabetes Center at Helmholtz Zentrum MünchenNeuherbergGermany
| | - Dana Croner
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Jasmin Sprissler
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
- Department of Pediatrics and Adolescent MedicineUlm University Medical CenterUlmGermany
| | | | - Tabea Hein
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Bernd Baumann
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| | - Thomas Wirth
- Institute of Physiological ChemistryUniversity of UlmUlmGermany
| |
Collapse
|
36
|
Ghio AJ, Stewart M, Sangani RG, Pavlisko EN, Roggli VL. Asbestos and Iron. Int J Mol Sci 2023; 24:12390. [PMID: 37569765 PMCID: PMC10419076 DOI: 10.3390/ijms241512390] [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: 07/03/2023] [Revised: 07/28/2023] [Accepted: 08/01/2023] [Indexed: 08/13/2023] Open
Abstract
Theories of disease pathogenesis following asbestos exposure have focused on the participation of iron. After exposure, an open network of negatively charged functional groups on the fiber surface complexes host metals with a preference for iron. Competition for iron between the host and the asbestos results in a functional metal deficiency. The homeostasis of iron in the host is modified by the cell response, including increased import to correct the loss of the metal to the fiber surface. The biological effects of asbestos develop in response to and are associated with the disruption of iron homeostasis. Cell iron deficiency in the host following fiber exposure activates kinases and transcription factors, which are associated with the release of mediators coordinating both inflammatory and fibrotic responses. Relative to serpentine chrysotile, the clearance of amphiboles is incomplete, resulting in translocation to the mesothelial surface of the pleura. Since the biological effect of asbestos is dependent on retention of the fiber, the sequestration of iron by the surface, and functional iron deficiency in the cell, the greater clearance (i.e., decreased persistence) of chrysotile results in its diminished impact. An inability to clear asbestos from the lower respiratory tract initiates a host process of iron biomineralization (i.e., asbestos body formation). Host cells attempt to mobilize the metal sequestered by the fiber surface by producing superoxide at the phagosome membrane. The subsequent ferrous cation is oxidized and undergoes hydrolysis, creating poorly crystalline iron oxyhydroxide (i.e., ferrihydrite) included in the coat of the asbestos body.
Collapse
Affiliation(s)
- Andrew J. Ghio
- US Environmental Protection Agency, Research Triangle Park, NC 27711, USA
| | - Matthew Stewart
- Environmental Health and Engineering, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA;
| | - Rahul G. Sangani
- Department of Medicine, West Virginia University, Morgantown, WV 26506, USA;
| | - Elizabeth N. Pavlisko
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; (E.N.P.); (V.L.R.)
| | - Victor L. Roggli
- Department of Pathology, Duke University Medical Center, Durham, NC 27710, USA; (E.N.P.); (V.L.R.)
| |
Collapse
|
37
|
Sun S, Qin J, Liao W, Gao X, Shang Z, Luo D, Xiong S. Mitochondrial Dysfunction in Cardiotoxicity Induced by BCR-ABL1 Tyrosine Kinase Inhibitors -Underlying Mechanisms, Detection, Potential Therapies. Cardiovasc Toxicol 2023; 23:233-254. [PMID: 37479951 DOI: 10.1007/s12012-023-09800-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 07/08/2023] [Indexed: 07/23/2023]
Abstract
The advent of BCR-ABL tyrosine kinase inhibitors (TKIs) targeted therapy revolutionized the treatment of chronic myeloid leukemia (CML) patients. Mitochondria are the key organelles for the maintenance of myocardial tissue homeostasis. However, cardiotoxicity associated with BCR-ABL1 TKIs can directly or indirectly cause mitochondrial damage and dysfunction, playing a pivotal role in cardiomyocytes homeostatic system and putting the cancer survivors at higher risk. In this review, we summarize the cardiotoxicity caused by BCR-ABL1 TKIs and the underlying mechanisms, which contribute dominantly to the damage of mitochondrial structure and dysfunction: endoplasmic reticulum (ER) stress, mitochondrial stress, damage of myocardial cell mitochondrial respiratory chain, increased production of mitochondrial reactive oxygen species (ROS), and other kinases and other potential mechanisms of cardiotoxicity induced by BCR-ABL1 TKIs. Furthermore, detection and management of BCR-ABL1 TKIs will promote our rational use, and cardioprotection strategies based on mitochondria will improve our understanding of the cardiotoxicity from a mitochondrial perspective. Ultimately, we hope shed light on clinical decision-making. By integrate and learn from both research and practice, we will endeavor to minimize the mitochondria-mediated cardiotoxicity and reduce the adverse sequelae associated with BCR-ABL1 TKIs.
Collapse
Affiliation(s)
- Sheng Sun
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Department of Medical Oncology, Hospital of Chengdu University of Traditioanal Chinese Medicine, Chengdu, 610075, Sichuan Province, China
| | - Jiqiu Qin
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Wenhao Liao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiang Gao
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Zhoubiao Shang
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Dehua Luo
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Shaoquan Xiong
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, China.
- Department of Medical Oncology, Hospital of Chengdu University of Traditioanal Chinese Medicine, Chengdu, 610075, Sichuan Province, China.
| |
Collapse
|
38
|
Kennewick KT, Bensinger SJ. Decoding the crosstalk between mevalonate metabolism and T cell function. Immunol Rev 2023; 317:71-94. [PMID: 36999733 DOI: 10.1111/imr.13200] [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: 03/02/2023] [Revised: 03/12/2023] [Accepted: 03/16/2023] [Indexed: 04/01/2023]
Abstract
The mevalonate pathway is an essential metabolic pathway in T cells regulating development, proliferation, survival, differentiation, and effector functions. The mevalonate pathway is a complex, branched pathway composed of many enzymes that ultimately generate cholesterol and nonsterol isoprenoids. T cells must tightly control metabolic flux through the branches of the mevalonate pathway to ensure sufficient isoprenoids and cholesterol are available to meet cellular demands. Unbalanced metabolite flux through the sterol or the nonsterol isoprenoid branch is metabolically inefficient and can have deleterious consequences for T cell fate and function. Accordingly, there is tight regulatory control over metabolic flux through the branches of this essential lipid synthetic pathway. In this review we provide an overview of how the branches of the mevalonate pathway are regulated in T cells and discuss our current understanding of the relationship between mevalonate metabolism, cholesterol homeostasis and T cell function.
Collapse
Affiliation(s)
- Kelly T Kennewick
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, California, USA
| | - Steven J Bensinger
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, California, USA
- Department of Molecular and Medical Pharmacology, University of California, Los Angeles, California, USA
| |
Collapse
|
39
|
Covatti C, Mizobuti DS, Rocha GLD, da Silva HNM, de Lourenço CC, Pertille A, Pereira ECL, Minatel E. Low-Level Photobiomodulation Therapy Modulates H 2O 2 Production, TRPC-6, and PGC-1α Levels in the Dystrophic Muscle. Photobiomodul Photomed Laser Surg 2023; 41:389-401. [PMID: 37527194 DOI: 10.1089/photob.2022.0115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/03/2023] Open
Abstract
Objective: This study evaluated photobiomodulation therapy (PBMT) effects on the factors involved in mitochondrial biogenesis, on the mitochondrial respiratory complexes, and on the transient receptor potential canonical channels (such as TRPC-1 and TRPC-6) in in vitro (mdx muscle cells) and in vivo studies (gastrocnemius muscle) from mdx mice, the dystrophin-deficient model of Duchenne muscular dystrophy (DMD). Background: There is no successful treatment for DMD, therefore demanding search for new therapies that can improve the muscle role, the quality of life, and the survival of dystrophic patients. Methods: The dystrophic primary muscle cells received PBMT at 0.6 J and 5 J, and the dystrophic gastrocnemius muscle received PBMT at 0.6 J. Results: The dystrophic muscle cells treated with PBMT (0.6 J and 5 J) showed no cytotoxicity and significantly lower levels in hydrogen peroxide (H2O2) production. We also demonstrated, for the first time, the capacity of PBMT, at a low dose (0.6 J), in reducing the TRPC-6 content and in raising the peroxisome proliferator-activated receptor γ coactivator-1α (PGC-1α) content in the dystrophic gastrocnemius muscle. Conclusions: PBMT modulates H2O2 production, TRPC-6, and PGC-1α content in the dystrophic muscle. These results suggest that laser therapy could act as an auxiliary therapy in the treatment of dystrophic patients.
Collapse
Affiliation(s)
- Caroline Covatti
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Daniela Sayuri Mizobuti
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Guilherme Luiz da Rocha
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Heloina Nathalliê Mariano da Silva
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Caroline Caramano de Lourenço
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| | - Adriana Pertille
- Graduate Program in Science of Human Movement, Universidade Metodista de Piracicaba (UNIMEP), Piracicaba, São Paulo, Brazil
| | - Elaine Cristina Leite Pereira
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
- Universidade de Brasília (UnB), Faculdade de Ceilândia, Brasília, Distrito Federal, Brazil
| | - Elaine Minatel
- Departamento de Biologia Estrutural e Funcional, Instituto de Biologia, Universidade Estadual de Campinas (UNICAMP), Campinas, São Paulo, Brazil
| |
Collapse
|
40
|
Li X, Cao D, Sun S, Wang Y. Anticancer therapeutic effect of ginsenosides through mediating reactive oxygen species. Front Pharmacol 2023; 14:1215020. [PMID: 37564184 PMCID: PMC10411515 DOI: 10.3389/fphar.2023.1215020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 07/10/2023] [Indexed: 08/12/2023] Open
Abstract
Dysregulation of reactive oxygen species (ROS) production and ROS-regulated pathways in cancer cells leads to abnormal accumulation of reactive oxygen species, displaying a double-edged role in cancer progression, either supporting transformation/proliferation and stimulating tumorigenesis or inducing cell death. Cancer cells can accommodate reactive oxygen species by regulating them at levels that allow the activation of pro-cancer signaling pathways without inducing cell death via modulation of the antioxidant defense system. Therefore, targeting reactive oxygen species is a promising approach for cancer treatment. Ginsenosides, their derivatives, and related drug carriers are well-positioned to modulate multiple signaling pathways by regulating oxidative stress-mediated cellular and molecular targets to induce apoptosis; regulate cell cycle arrest and autophagy, invasion, and metastasis; and enhance the sensitivity of drug-resistant cells to chemotherapeutic agents of different cancers depending on the type, level, and source of reactive oxygen species, and the type and stage of the cancer. Our review focuses on the pro- and anticancer effects of reactive oxygen species, and summarizes the mechanisms and recent advances in different ginsenosides that bring about anticancer effects by targeting reactive oxygen species, providing new ideas for designing further anticancer studies or conducting more preclinical and clinical studies.
Collapse
Affiliation(s)
- Xiaonan Li
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, China
| | - Donghui Cao
- Department of Clinical Research, The First Hospital of Jilin University, Changchun, China
| | - Siming Sun
- Department of Clinical Research, The First Hospital of Jilin University, Changchun, China
| | - Yuehui Wang
- Department of Geriatrics, The First Hospital of Jilin University, Changchun, China
| |
Collapse
|
41
|
Guo Y, Guan T, Shafiq K, Yu Q, Jiao X, Na D, Li M, Zhang G, Kong J. Mitochondrial dysfunction in aging. Ageing Res Rev 2023; 88:101955. [PMID: 37196864 DOI: 10.1016/j.arr.2023.101955] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2022] [Revised: 04/27/2023] [Accepted: 05/14/2023] [Indexed: 05/19/2023]
Abstract
Aging is a complex process that features a functional decline in many organelles. Although mitochondrial dysfunction is suggested as one of the determining factors of aging, the role of mitochondrial quality control (MQC) in aging is still poorly understood. A growing body of evidence points out that reactive oxygen species (ROS) stimulates mitochondrial dynamic changes and accelerates the accumulation of oxidized by-products through mitochondrial proteases and mitochondrial unfolded protein response (UPRmt). Mitochondrial-derived vesicles (MDVs) are the frontline of MQC to dispose of oxidized derivatives. Besides, mitophagy helps remove partially damaged mitochondria to ensure that mitochondria are healthy and functional. Although abundant interventions on MQC have been explored, over-activation or inhibition of any type of MQC may even accelerate abnormal energy metabolism and mitochondrial dysfunction-induced senescence. This review summarizes mechanisms essential for maintaining mitochondrial homeostasis and emphasizes that imbalanced MQC may accelerate cellular senescence and aging. Thus, appropriate interventions on MQC may delay the aging process and extend lifespan.
Collapse
Affiliation(s)
- Ying Guo
- Department of Human Anatomy and Cell Science, University of Manitoba, Winnipeg, Manitoba, Canada; Department of Forensic Medicine, Hebei North University, Zhangjiakou, China
| | - Teng Guan
- Department of Human Anatomy and Cell Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Kashfia Shafiq
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Canada
| | - Qiang Yu
- Department of Human Anatomy and Cell Science, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Xin Jiao
- Department of Forensic Medicine, Hebei North University, Zhangjiakou, China
| | - Donghui Na
- Department of Forensic Medicine, Hebei North University, Zhangjiakou, China
| | - Meiyu Li
- Department of Forensic Medicine, Hebei North University, Zhangjiakou, China
| | - Guohui Zhang
- Department of Forensic Medicine, Hebei North University, Zhangjiakou, China.
| | - Jiming Kong
- Department of Human Anatomy and Cell Science, University of Manitoba, Winnipeg, Manitoba, Canada.
| |
Collapse
|
42
|
Zhu XZ, Qiu Z, Lei SQ, Leng Y, Li WY, Xia ZY. The Role of P53 in Myocardial Ischemia-Reperfusion Injury. Cardiovasc Drugs Ther 2023:10.1007/s10557-023-07480-x. [PMID: 37389674 DOI: 10.1007/s10557-023-07480-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/09/2023] [Indexed: 07/01/2023]
Abstract
PURPOSE P53 is one of the key tumor suppressors. In normal cells, p53 is maintained at low levels by the ubiquitination of the ubiquitinated ligase MDM2. In contrast, under stress conditions such as DNA damage and ischemia, the interaction between p53 and MDM2 is blocked and activated by phosphorylation and acetylation, thereby mediating the trans-activation of p53 through its target genes to regulate a variety of cellular responses. Previous studies have shown that the expression of p53 is negligible in normal myocardium, tends to increase in myocardial ischemia and is maximally induced in ischemia-reperfused myocardium, demonstrating a possible key role of p53 in the development of MIRI. In this review, we detail and summarize recent studies on the mechanism of action of p53 in MIRI and describe the therapeutic agents targeting the relevant targets to provide new strategies for the prevention and treatment of MIRI. METHODS We collected 161 relevant papers mainly from Pubmed and Web of Science (search terms "p53" and "myocardial ischemia-reperfusion injury"). After that, we selected pathway studies related to p53 and classified them according to their contents. We eventually analyzed and summarized them. RESULTS AND CONCLUSION In this review, we detail and summarize recent studies on the mechanism of action of p53 in MIRI and validate its status as an important intermediate affecting MIRI. On the one hand, p53 is regulated and modified by multiple factors, especially non-coding RNAs; on the other hand, p53 regulates apoptosis, programmed necrosis, autophagy, iron death and oxidative stress in MIRI through multiple pathways. More importantly, several studies have reported medications targeting p53-related therapeutic targets. These medications are expected to be effective options for the alleviation of MIRI, but further safety and clinical studies are needed to convert them into clinical applications.
Collapse
Affiliation(s)
- Xi-Zi Zhu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Zhen Qiu
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Shao-Qing Lei
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Yan Leng
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Wen-Yuan Li
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China
| | - Zhong-Yuan Xia
- Department of Anesthesiology, Renmin Hospital of Wuhan University, 99 Zhang Zhidong Road, Wuhan, Hubei, 430060, People's Republic of China.
| |
Collapse
|
43
|
Nita M, Grzybowski A. Antioxidative Role of Heterophagy, Autophagy, and Mitophagy in the Retina and Their Association with the Age-Related Macular Degeneration (AMD) Etiopathogenesis. Antioxidants (Basel) 2023; 12:1368. [PMID: 37507908 PMCID: PMC10376332 DOI: 10.3390/antiox12071368] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/09/2023] [Accepted: 06/26/2023] [Indexed: 07/30/2023] Open
Abstract
Age-related macular degeneration (AMD), an oxidative stress-linked neurodegenerative disease, leads to irreversible damage of the central retina and severe visual impairment. Advanced age and the long-standing influence of oxidative stress and oxidative cellular damage play crucial roles in AMD etiopathogenesis. Many authors emphasize the role of heterophagy, autophagy, and mitophagy in maintaining homeostasis in the retina. Relevantly modifying the activity of both macroautophagy and mitophagy pathways represents one of the new therapeutic strategies in AMD. Our review provides an overview of the antioxidative roles of heterophagy, autophagy, and mitophagy and presents associations between dysregulations of these molecular mechanisms and AMD etiopathogenesis. The authors performed an extensive analysis of the literature, employing PubMed and Google Scholar, complying with the 2013-2023 period, and using the following keywords: age-related macular degeneration, RPE cells, reactive oxygen species, oxidative stress, heterophagy, autophagy, and mitophagy. Heterophagy, autophagy, and mitophagy play antioxidative roles in the retina; however, they become sluggish and dysregulated with age and contribute to AMD development and progression. In the retina, antioxidative roles also play in RPE cells, NFE2L2 and PGC-1α proteins, NFE2L2/PGC-1α/ARE signaling cascade, Nrf2 factor, p62/SQSTM1/Keap1-Nrf2/ARE pathway, circulating miRNAs, and Yttrium oxide nanoparticles performed experimentally in animal studies.
Collapse
Affiliation(s)
- Małgorzata Nita
- Domestic and Specialized Medicine Centre "Dilmed", 40-231 Katowice, Poland
| | - Andrzej Grzybowski
- Institute for Research in Ophthalmology, Foundation for Ophthalmology Development, Gorczyczewskiego 2/3, 61-553 Poznań, Poland
| |
Collapse
|
44
|
Kishore P, Collinet ACT, Brundel BJJM. Prevention of Atrial Fibrillation: Putting Proteostasis Derailment Back on Track. J Clin Med 2023; 12:4352. [PMID: 37445387 DOI: 10.3390/jcm12134352] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023] Open
Abstract
Despite the many attempts to treat atrial fibrillation (AF), the most common cardiac tachyarrhythmia in the Western world, the treatment efficacy of AF is still suboptimal. A plausible reason for the suboptimal efficacy is that the current treatments are not directed at the underlying molecular mechanisms that drive AF. Recent discoveries revealed that the derailment of specific molecular proteostasis pathways drive electrical conduction disorders, contractile dysfunction and AF. The degree of this so-called 'electropathology' corresponds to the response to anti-AF treatment. Hence, to develop effective therapies to prevent AF, understanding the molecular mechanisms is of key importance. In this review, we highlight the key modulators of proteostasis derailment and describe the mechanisms that explain how they affect electrical and contractile function in atrial cardiomyocytes and AF. The key modulators of proteostasis derailment include (1) exhaustion of cardioprotective heat shock proteins (HSPs), (2) excessive endoplasmic reticulum (ER) stress and downstream autophagic protein degradation, (3) histone deacetylase 6 (HDAC6)-induced microtubule disruption, (4) activation of DNA damage-PARP1 activation and NAD+ axis and (5) mitochondrial dysfunction. Furthermore, we discuss druggable targets within these pathways that are involved in the prevention of proteostasis derailment, as well as the targets that aid in the recovery from AF. Finally, we will elaborate on the most favorable druggable targets for (future) testing in patients with AF, as well as drugs with potential benefits for AF recovery.
Collapse
Affiliation(s)
- Preetam Kishore
- Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1081 HZ Amsterdam, The Netherlands
| | - Amelie C T Collinet
- Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1081 HZ Amsterdam, The Netherlands
| | - Bianca J J M Brundel
- Physiology, Amsterdam UMC, Vrije Universiteit, Amsterdam Cardiovascular Sciences, Heart Failure and Arrhythmias, 1081 HZ Amsterdam, The Netherlands
| |
Collapse
|
45
|
Savchenko L, Martinelli I, Marsal D, Zhdan V, Tao J, Kunduzova O. Myocardial capacity of mitochondrial oxidative phosphorylation in response to prolonged electromagnetic stress. Front Cardiovasc Med 2023; 10:1205893. [PMID: 37351281 PMCID: PMC10282661 DOI: 10.3389/fcvm.2023.1205893] [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: 04/14/2023] [Accepted: 05/22/2023] [Indexed: 06/24/2023] Open
Abstract
Introduction Mitochondria are central energy generators for the heart, producing adenosine triphosphate (ATP) through the oxidative phosphorylation (OXPHOS) system. However, mitochondria also guide critical cell decisions and responses to the environmental stressors. Methods This study evaluated whether prolonged electromagnetic stress affects the mitochondrial OXPHOS system and structural modifications of the myocardium. To induce prolonged electromagnetic stress, mice were exposed to 915 MHz electromagnetic fields (EMFs) for 28 days. Results Analysis of mitochondrial OXPHOS capacity in EMF-exposed mice pointed to a significant increase in cardiac protein expression of the Complex I, II, III and IV subunits, while expression level of α-subunit of ATP synthase (Complex V) was stable among groups. Furthermore, measurement of respiratory function in isolated cardiac mitochondria using the Seahorse XF24 analyzer demonstrated that prolonged electromagnetic stress modifies the mitochondrial respiratory capacity. However, the plasma level of malondialdehyde, an indicator of oxidative stress, and myocardial expression of mitochondria-resident antioxidant enzyme superoxide dismutase 2 remained unchanged in EMF-exposed mice as compared to controls. At the structural and functional state of left ventricles, no abnormalities were identified in the heart of mice subjected to electromagnetic stress. Discussion Taken together, these data suggest that prolonged exposure to EMFs could affect mitochondrial oxidative metabolism through modulating cardiac OXPHOS system.
Collapse
Affiliation(s)
- Lesia Savchenko
- National Institute of Health and Medical Research (INSERM) U1297, Toulouse, France
- Toulouse University, Toulouse, Cedex 9, France
- Poltava State Medical University, Poltava, Ukraine
| | - Ilenia Martinelli
- National Institute of Health and Medical Research (INSERM) U1297, Toulouse, France
- Toulouse University, Toulouse, Cedex 9, France
| | - Dimitri Marsal
- National Institute of Health and Medical Research (INSERM) U1297, Toulouse, France
- Toulouse University, Toulouse, Cedex 9, France
| | | | - Junwu Tao
- Toulouse, INP-ENSEEIHT, LAPLACE, Toulouse, France
| | - Oksana Kunduzova
- National Institute of Health and Medical Research (INSERM) U1297, Toulouse, France
- Toulouse University, Toulouse, Cedex 9, France
| |
Collapse
|
46
|
Diao J, Zhou Q. Toxic encephalopathy and peripheral neuropathy of poisoning by Avermectin Pyridine: a case report and a review of the literature. Front Neurol 2023; 14:1144970. [PMID: 37333003 PMCID: PMC10275489 DOI: 10.3389/fneur.2023.1144970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2023] [Accepted: 05/17/2023] [Indexed: 06/20/2023] Open
Abstract
Background Avermectin Pyridaben (AVP) is an insecticide with extreme neurotoxicity in human, causing critical symptoms such as nausea, vomiting, coma and respiratory failure within a short time after oral ingestion. Neurological sequelae or even death may occur because of delayed treatment or excessive toxic dose. Case presentation We report a 15-year-old girl who presented with coma, respiratory failure, limb weakness, ataxia symptoms after ingestion of a toxic dose of AVP. Soon after the poisoning, the patient was treated with life-saving mechanical ventilation and haemodialysis. Subsequently brain Magnetic Resonance Imaging (MRI) and nerve conduction study (NCS) and electromyography (EMG) demonstrated toxic encephalopathy and peripheral nerve injury. Over the next 2 months the patient's limb function gradually recovered under treatment with hyperbaric oxygen, glucocorticoid pulses and neurotrophic drugs. Conclusion This case documents a rare presentation of toxic encephalopathy complicated with peripheral neuropathy following AVP poisoning. Seven other similar cases of poisoning in terms of common symptoms and effective treatment have also been summarised for providing clinicians with experience in diagnosis and therapy.
Collapse
|
47
|
Li Y, Ying W. Methylene blue reduces the serum levels of interleukin-6 and inhibits STAT3 activation in the brain and the skin of lipopolysaccharide-administered mice. Front Immunol 2023; 14:1181932. [PMID: 37325623 PMCID: PMC10266349 DOI: 10.3389/fimmu.2023.1181932] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/19/2023] [Indexed: 06/17/2023] Open
Abstract
It is valuable to search for novel and economical agents for inhibiting STAT3 activation and blocking increases in IL-6 levels, due to the important roles of STAT3 and IL-6 in inflammation. Since Methylene Blue (MB) has shown therapeutical potential for multiple diseases, it has become increasingly important to investigate the mechanisms underlying the effects of MB on inflammation. Using a mouse model of lipopolysaccharide (LPS)-induced inflammation, we investigated the mechanisms underlying the effects of MB on inflammation, obtaining the following findings: First, MB administration attenuated the LPS-induced increases in the serum levels of IL-6; second, MB administration attenuated LPS-induced STAT3 activation of the brain; and third, MB administration attenuated LPS-induced STAT3 activation of the skin. Collectively, our study has suggested that MB administration can decrease the levels of IL-6 and STAT3 activation - two important factors in inflammation. Since MB is a clinically used and relatively economical drug, our findings have suggested therapeutic potential of MB for multiple inflammation-associated diseases due to its effects on STAT3 activation and IL-6 levels.
Collapse
Affiliation(s)
| | - Weihai Ying
- Med-X Research Institute and School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai, China
| |
Collapse
|
48
|
Pant T, Uche N, Juric M, Bosnjak ZJ. Clinical Relevance of lncRNA and Mitochondrial Targeted Antioxidants as Therapeutic Options in Regulating Oxidative Stress and Mitochondrial Function in Vascular Complications of Diabetes. Antioxidants (Basel) 2023; 12:antiox12040898. [PMID: 37107272 PMCID: PMC10135521 DOI: 10.3390/antiox12040898] [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: 02/13/2023] [Revised: 03/29/2023] [Accepted: 04/01/2023] [Indexed: 04/29/2023] Open
Abstract
Metabolic imbalances and persistent hyperglycemia are widely recognized as driving forces for augmented cytosolic and mitochondrial reactive oxygen species (ROS) in diabetes mellitus (DM), fostering the development of vascular complications such as diabetic nephropathy, diabetic cardiomyopathy, diabetic neuropathy, and diabetic retinopathy. Therefore, specific therapeutic approaches capable of modulating oxidative milieu may provide a preventative and/or therapeutic benefit against the development of cardiovascular complications in diabetes patients. Recent studies have demonstrated epigenetic alterations in circulating and tissue-specific long non-coding RNA (lncRNA) signatures in vascular complications of DM regulating mitochondrial function under oxidative stress. Intriguingly, over the past decade mitochondria-targeted antioxidants (MTAs) have emerged as a promising therapeutic option for managing oxidative stress-induced diseases. Here, we review the present status of lncRNA as a diagnostic biomarker and potential regulator of oxidative stress in vascular complications of DM. We also discuss the recent advances in using MTAs in different animal models and clinical trials. We summarize the prospects and challenges for the use of MTAs in treating vascular diseases and their application in translation medicine, which may be beneficial in MTA drug design development, and their application in translational medicine.
Collapse
Affiliation(s)
- Tarun Pant
- Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Nnamdi Uche
- Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Matea Juric
- Department of Biophysics, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| | - Zeljko J Bosnjak
- Department of Medicine, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
- Department of Physiology, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226, USA
| |
Collapse
|
49
|
Perrelli A, Ferraris C, Berni E, Glading AJ, Retta SF. KRIT1: A Traffic Warden at the Busy Crossroads Between Redox Signaling and the Pathogenesis of Cerebral Cavernous Malformation Disease. Antioxid Redox Signal 2023; 38:496-528. [PMID: 36047808 PMCID: PMC10039281 DOI: 10.1089/ars.2021.0263] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 08/15/2022] [Accepted: 08/22/2022] [Indexed: 12/18/2022]
Abstract
Significance: KRIT1 (Krev interaction trapped 1) is a scaffolding protein that plays a critical role in vascular morphogenesis and homeostasis. Its loss-of-function has been unequivocally associated with the pathogenesis of Cerebral Cavernous Malformation (CCM), a major cerebrovascular disease of genetic origin characterized by defective endothelial cell-cell adhesion and ensuing structural alterations and hyperpermeability in brain capillaries. KRIT1 contributes to the maintenance of endothelial barrier function by stabilizing the integrity of adherens junctions and inhibiting the formation of actin stress fibers. Recent Advances: Among the multiple regulatory mechanisms proposed so far, significant evidence accumulated over the past decade has clearly shown that the role of KRIT1 in the stability of endothelial barriers, including the blood-brain barrier, is largely based on its involvement in the complex machinery governing cellular redox homeostasis and responses to oxidative stress and inflammation. KRIT1 loss-of-function has, indeed, been demonstrated to cause an impairment of major redox-sensitive mechanisms involved in spatiotemporal regulation of cell adhesion and signaling, which ultimately leads to decreased cell-cell junction stability and enhanced sensitivity to oxidative stress and inflammation. Critical Issues: This review explores the redox mechanisms that influence endothelial cell adhesion and barrier function, focusing on the role of KRIT1 in such mechanisms. We propose that this supports a novel model wherein redox signaling forms the common link between the various pathogenetic mechanisms and therapeutic approaches hitherto associated with CCM disease. Future Directions: A comprehensive characterization of the role of KRIT1 in redox control of endothelial barrier physiology and defense against oxy-inflammatory insults will provide valuable insights into the development of precision medicine strategies. Antioxid. Redox Signal. 38, 496-528.
Collapse
Affiliation(s)
- Andrea Perrelli
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- Department of Pharmacology and Physiology, University of Rochester Medical Center, Rochester, New York, USA
| | - Chiara Ferraris
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Elisa Berni
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| | - Angela J. Glading
- Department of Pharmacology and Physiology, University of Rochester Medical Center, Rochester, New York, USA
| | - Saverio Francesco Retta
- Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
- CCM Italia Research Network, National Coordination Center at the Department of Clinical and Biological Sciences, University of Torino, Torino, Italy
| |
Collapse
|
50
|
Stulczewski D, Zgorzynska E, Dziedzic B, Wieczorek-Szukala K, Szafraniec K, Walczewska A. EPA stronger than DHA increases the mitochondrial membrane potential and cardiolipin levels but does not change the ATP level in astrocytes. Exp Cell Res 2023; 424:113491. [PMID: 36708860 DOI: 10.1016/j.yexcr.2023.113491] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/22/2022] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Astrocytes are highly energy-consuming glial cells critical for metabolic support to neurons. A growing body of evidence suggests that mitochondrial dysfunction in astrocytes is involved in age-related neurodegenerative disorders and that fish oil, rich in docosahexaenoic (DHA) and eicosapentaenoic (EPA) fatty acids, may alleviate cognition impairment in Parkinson's and Alzheimer's diseases. The present study examines the effect of DHA and EPA on mitochondrial membrane potential (MMP), apoptosis activation and ATP levels in astrocytes cultured in medium containing glucose or galactose, which limits oxidative phosphorylation (OXPHOS). MMP, expressed as the ratio of red to green JC-10 and MitoTracker fluorescence, increased in EPA-incubated cells in a dose dependent manner and was higher than in DHA-incubated astrocytes, also after uncoupling of OXPHOS by carbonyl cyanide 3-chlorophenylhydrazone (CCCP). In cells cultured in glucose and galactose medium mitochondrial hyperpolarization had no impact on intracellular ATP level. Furthermore, both EPA and DHA elevated mitochondrial cardiolipin content, however only EPA did so in a dose-dependent manner and reduced apoptosis which was analyzed by flow cytometry.
Collapse
Affiliation(s)
- Dawid Stulczewski
- Department of Cell-to-Cell Communication, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Emilia Zgorzynska
- Department of Cell-to-Cell Communication, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland.
| | - Barbara Dziedzic
- Department of Cell-to-Cell Communication, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | | | - Kacper Szafraniec
- Department of Cell-to-Cell Communication, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| | - Anna Walczewska
- Department of Cell-to-Cell Communication, Medical University of Lodz, Mazowiecka 6/8, 92-215, Lodz, Poland
| |
Collapse
|