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Fong ZW, Tang RMY, Cheah IKM, Leow DMK, Chen L, Halliwell B. Ergothioneine and mitochondria: An important protective mechanism? Biochem Biophys Res Commun 2024; 726:150269. [PMID: 38909533 DOI: 10.1016/j.bbrc.2024.150269] [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: 06/04/2024] [Accepted: 06/14/2024] [Indexed: 06/25/2024]
Abstract
Mitochondrial dysfunction is implicated in a wide range of human disorders including many neurodegenerative and cardiovascular diseases, metabolic diseases, cancers, and respiratory disorders. Studies have suggested the potential of l-ergothioneine (ET), a unique dietary thione, to prevent mitochondrial damage and improve disease outcome. Despite this, no studies have definitively demonstrated uptake of ET into mitochondria. Moreover, the expression of the known ET transporter, OCTN1, on the mitochondria remains controversial. In this study, we utilise mass spectrometry to demonstrate direct ET uptake in isolated mitochondria as well as its presence in mitochondria isolated from ET-treated cells and animals. Mitochondria isolated from OCTN1 knockout mice tissues, have impaired but still detectable ET uptake, raising the possibility of alternative transporter(s) which may facilitate ET uptake into the mitochondria. Our data confirm that ET can enter mitochondria, providing a basis for further work on ET in the prevention of mitochondrial dysfunction in human disease.
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Affiliation(s)
- Zachary Weijie Fong
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore; Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore; Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, 61 Biopolis Drive, Proteos, Singapore, 138673, Singapore
| | - Richard Ming Yi Tang
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore; Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore
| | - Irwin Kee-Mun Cheah
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore; Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore
| | - Damien Meng Kiat Leow
- Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore; Department of Anatomy, Yong Loo Lin School of Medicine, National University of Singapore, 4 Medical Drive, Singapore, 117594, Singapore
| | - Lucrecia Chen
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore; Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore
| | - Barry Halliwell
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 8 Medical Drive, Singapore, 117596, Singapore; Neurobiology Research Programme, Life Sciences Institute, Centre for Life Sciences, National University of Singapore, 28 Medical Drive, Singapore, 117456, Singapore.
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Zhao X, Huang X, Huang C, Wang X, Yang Y, Dang R, Zhang S, Deng Y, Yan P, Zhou Y, Fan P, Cheng X. Study on the mechanism of glucocorticoid receptor mitochondrial translocation and glucocorticoid-induced apoptosis in macrophages. Immunopharmacol Immunotoxicol 2024:1-14. [PMID: 38862214 DOI: 10.1080/08923973.2024.2366867] [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: 11/30/2023] [Accepted: 05/19/2024] [Indexed: 06/13/2024]
Abstract
OBJECTIVE Our research aimed to investigate the therapeutic effects of Tubastatin-A, a glucocorticoid receptor (GR) mitochondrial translocation inhibitor, and mitoquinone (MitoQ), an antioxidant, on attenuating dexamethasone (DEX)-induced macrophage apoptosis. METHODS We treated RAW264.7 macrophages with different combinations of DEX and either Tubastatin-A or MitoQ. Parameters such as mitochondrial GR translocation, mitochondrial reactive oxygen species levels, mitochondrial membrane potential, mitochondrial permeability transition pore opening, cytochrome C efflux to the cytosol, and apoptosis were subsequently evaluated in the different treatment groups via qRT-PCR, western blotting, and immunofluorescence assays. RESULTS DEX intervention increased the translocation of GRs into the mitochondria, while reducing the expression of the mitochondrial gene MT-CO1 and the activity of mitochondrial respiratory chain complex IV in macrophages. In addition, DEX administration increased mtROS levels, mitochondrial permeability transition pore opening, and mitochondrial cytochrome C release in macrophages, which promoted their apoptosis. We found that Tubastatin-A inhibited mitochondrial GR translocation and reversed the DEX-induced increase in GR levels within the mitochondria. Furthermore, Tubastatin-A mitigated various mitochondrial changes induced by DEX, including reducing the efflux of mitochondrial cytochrome C and inhibiting macrophage apoptosis. Similarly, MitoQ exerted its effects on macrophage apoptosis by reducing mtROS levels through the mitochondrial pathway. CONCLUSIONS The DEX-mediated translocation of GR into mitochondria disrupts the mitochondrial function of macrophages, which induces their apoptosis. By inhibiting mitochondrial translocation of GR and reducing mtROS levels, Tubastatin-A and MitoQ can effectively attenuate macrophage apoptosis, which has clinical implications for reducing the notable side effects associated with glucocorticoid use.
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Affiliation(s)
- Xiaoqing Zhao
- Department of Dermatology, Guangzhou Twelfth People's Hospital, Guangzhou, China
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- State Key Laboratory of Respiratory Diseases, Guangzhou, China
| | - Xinglan Huang
- Department of Dermatology, Guangzhou Twelfth People's Hospital, Guangzhou, China
| | - Caifeng Huang
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xingrong Wang
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yuqi Yang
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- Department of Traditional Chinese Medicine, The Affiliated Traditional Chinese Medicine Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ruonan Dang
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Suiying Zhang
- Department of Dermatology, Dongguan Songshan Lake Central Hospital Affiliated to Guangdong Medical University, Dongguan, China
| | - Yuqiong Deng
- Department of Dermatology, Panyu Maternal And Child Care Service Centre Of Guangzhou, Guangzhou, China
| | - Peng Yan
- State Key Laboratory of Respiratory Diseases, Guangzhou, China
| | - Yiye Zhou
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- Department of Traditional Chinese Medicine, The Affiliated Traditional Chinese Medicine Hospital of Guangzhou Medical University, Guangzhou, China
| | - Ping Fan
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiping Cheng
- Institute of Integrated Traditional Chinese and Western Medicine of Guangzhou Medical University, Guangzhou, China
- State Key Laboratory of Respiratory Diseases, Guangzhou, China
- Department of Dermatology, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
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Yusri K, Kumar S, Fong S, Gruber J, Sorrentino V. Towards Healthy Longevity: Comprehensive Insights from Molecular Targets and Biomarkers to Biological Clocks. Int J Mol Sci 2024; 25:6793. [PMID: 38928497 PMCID: PMC11203944 DOI: 10.3390/ijms25126793] [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: 05/23/2024] [Revised: 06/16/2024] [Accepted: 06/18/2024] [Indexed: 06/28/2024] Open
Abstract
Aging is a complex and time-dependent decline in physiological function that affects most organisms, leading to increased risk of age-related diseases. Investigating the molecular underpinnings of aging is crucial to identify geroprotectors, precisely quantify biological age, and propose healthy longevity approaches. This review explores pathways that are currently being investigated as intervention targets and aging biomarkers spanning molecular, cellular, and systemic dimensions. Interventions that target these hallmarks may ameliorate the aging process, with some progressing to clinical trials. Biomarkers of these hallmarks are used to estimate biological aging and risk of aging-associated disease. Utilizing aging biomarkers, biological aging clocks can be constructed that predict a state of abnormal aging, age-related diseases, and increased mortality. Biological age estimation can therefore provide the basis for a fine-grained risk stratification by predicting all-cause mortality well ahead of the onset of specific diseases, thus offering a window for intervention. Yet, despite technological advancements, challenges persist due to individual variability and the dynamic nature of these biomarkers. Addressing this requires longitudinal studies for robust biomarker identification. Overall, utilizing the hallmarks of aging to discover new drug targets and develop new biomarkers opens new frontiers in medicine. Prospects involve multi-omics integration, machine learning, and personalized approaches for targeted interventions, promising a healthier aging population.
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Affiliation(s)
- Khalishah Yusri
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Sanjay Kumar
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
| | - Sheng Fong
- Department of Geriatric Medicine, Singapore General Hospital, Singapore 169608, Singapore
- Clinical and Translational Sciences PhD Program, Duke-NUS Medical School, Singapore 169857, Singapore
| | - Jan Gruber
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Science Division, Yale-NUS College, Singapore 138527, Singapore
| | - Vincenzo Sorrentino
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
- Healthy Longevity Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore
- Department of Medical Biochemistry, Amsterdam UMC, Amsterdam Gastroenterology Endocrinology Metabolism and Amsterdam Neuroscience Cellular & Molecular Mechanisms, University of Amsterdam, Meibergdreef 9, 1105AZ Amsterdam, The Netherlands
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Wang ZH, Wang ZJ, Liu HC, Wang CY, Wang YQ, Yue Y, Zhao C, Wang G, Wan JP. Targeting mitochondria for ovarian aging: new insights into mechanisms and therapeutic potential. Front Endocrinol (Lausanne) 2024; 15:1417007. [PMID: 38952389 PMCID: PMC11215021 DOI: 10.3389/fendo.2024.1417007] [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: 04/13/2024] [Accepted: 05/29/2024] [Indexed: 07/03/2024] Open
Abstract
Ovarian aging is a complex process characterized by a decline in oocyte quantity and quality, directly impacting fertility and overall well-being. Recent researches have identified mitochondria as pivotal players in the aging of ovaries, influencing various hallmarks and pathways governing this intricate process. In this review, we discuss the multifaceted role of mitochondria in determining ovarian fate, and outline the pivotal mechanisms through which mitochondria contribute to ovarian aging. Specifically, we emphasize the potential of targeting mitochondrial dysfunction through innovative therapeutic approaches, including antioxidants, metabolic improvement, biogenesis promotion, mitophagy enhancement, mitochondrial transfer, and traditional Chinese medicine. These strategies hold promise as effective means to mitigate age-related fertility decline and preserve ovarian health. Drawing insights from advanced researches in the field, this review provides a deeper understanding of the intricate interplay between mitochondrial function and ovarian aging, offering valuable perspectives for the development of novel therapeutic interventions aimed at preserving fertility and enhancing overall reproductive health.
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Affiliation(s)
- Zi-Han Wang
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Zhen-Jing Wang
- Center for Reproductive Medicine, Shandong University, Jinan, China
| | - Huai-Chao Liu
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chen-Yu Wang
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yu-Qi Wang
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Yang Yue
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Chen Zhao
- Cancer Center, Renmin Hospital of Wuhan University, Wuhan, China
| | - Guoyun Wang
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Ji-Peng Wan
- Department of Gynecology, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
- Jinan Key Laboratory of Diagnosis and Treatment of Major Gynecological Diseases, Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
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Islam MA, Sehar U, Sultana OF, Mukherjee U, Brownell M, Kshirsagar S, Reddy PH. SuperAgers and centenarians, dynamics of healthy ageing with cognitive resilience. Mech Ageing Dev 2024; 219:111936. [PMID: 38657874 DOI: 10.1016/j.mad.2024.111936] [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: 03/08/2024] [Revised: 04/08/2024] [Accepted: 04/16/2024] [Indexed: 04/26/2024]
Abstract
Graceful healthy ageing and extended longevity is the most desired goal for human race. The process of ageing is inevitable and has a profound impact on the gradual deterioration of our physiology and health since it triggers the onset of many chronic conditions like dementia, osteoporosis, diabetes, arthritis, cancer, and cardiovascular disease. However, some people who lived/live more than 100 years called 'Centenarians" and how do they achieve their extended lifespans are not completely understood. Studying these unknown factors of longevity is important not only to establish a longer human lifespan but also to manage and treat people with shortened lifespans suffering from age-related morbidities. Furthermore, older adults who maintain strong cognitive function are referred to as "SuperAgers" and may be resistant to risk factors linked to cognitive decline. Investigating the mechanisms underlying their cognitive resilience may contribute to the development of therapeutic strategies that support the preservation of cognitive function as people age. The key to a long, physically, and cognitively healthy life has been a mystery to scientists for ages. Developments in the medical sciences helps us to a better understanding of human physiological function and greater access to medical care has led us to an increase in life expectancy. Moreover, inheriting favorable genetic traits and adopting a healthy lifestyle play pivotal roles in promoting longer and healthier lives. Engaging in regular physical activity, maintaining a balanced diet, and avoiding harmful habits such as smoking contribute to overall well-being. The synergy between positive lifestyle choices, access to education, socio-economic factors, environmental determinants and genetic supremacy enhances the potential for a longer and healthier life. Our article aims to examine the factors associated with healthy ageing, particularly focusing on cognitive health in centenarians. We will also be discussing different aspects of ageing including genomic instability, metabolic burden, oxidative stress and inflammation, mitochondrial dysfunction, cellular senescence, immunosenescence, and sarcopenia.
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Affiliation(s)
- Md Ariful Islam
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Ujala Sehar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Omme Fatema Sultana
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Upasana Mukherjee
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Malcolm Brownell
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - Sudhir Kshirsagar
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA
| | - P Hemachandra Reddy
- Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, TX, USA; Public Health Department of Graduate School of Biomedical Sciences, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Speech, Language and Hearing Sciences, School Health Professions, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Neurology, Departments of School of Medicine, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA; Nutritional Sciences Department, College of Human Sciences, Texas Tech University, 1301 Akron Ave, Lubbock, TX 79409, USA.
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Pei H, Qu J, Chen JM, Zhang YL, Zhang M, Zhao GJ, Lu ZQ. The effects of antioxidant supplementation on short-term mortality in sepsis patients. Heliyon 2024; 10:e29156. [PMID: 38644822 PMCID: PMC11033118 DOI: 10.1016/j.heliyon.2024.e29156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 03/28/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024] Open
Abstract
Background The occurrence and development of sepsis are related to the excessive production of oxygen free radicals and the weakened natural clearance mechanism. Further dependable evidence is required to clarify the effectiveness of antioxidant therapy, especially its impact on short-term mortality. Objectives The purpose of this systematic review and meta-analysis was to evaluate the effect of common antioxidant therapy on short-term mortality in patients with sepsis. Methods According to PRISMA guidelines, a systematic literature search on antioxidants in adults sepsis patients was performed on PubMed/Medline, Embase, and the Cochrane Library from the establishment of the database to November 2023. Antioxidant supplements can be a single-drug or multi-drug combination: HAT (hydrocortisone, ascorbic acid, and thiamine), ascorbic acid, thiamine, N-acetylcysteine and selenium. The primary outcome was the effect of antioxidant treatment on short-term mortality, which included 28-day mortality, in-hospital mortality, intensive care unit mortality, and 30-day mortality. Subgroup analyses of short-term mortality were used to reduce statistical heterogeneity and publication bias. Results Sixty studies of 130,986 sepsis patients fulfilled the predefined criteria and were quantified and meta-analyzed. Antioxidant therapy reduces the risk of short-term death in sepsis patients by multivariate meta-analysis of current data, including a reduction of in-hospital mortality (OR = 0.81, 95% CI 0.67 to 0.99; P = 0.040) and 28-day mortality (OR = 0.81, 95% CI 0.69 to 0.95]; P = 0.008). Particularly in subgroup analyses, ascorbic acid treatment can reduce in-hospital mortality (OR = 0.66, 95% CI 0.90 to 0.98; P = 0.006) and 28-day mortality (OR = 0.43, 95% CI 0.24 to 0.75; P = 0.003). However, the meta-analysis of RCTs found that antioxidant therapy drugs, especially ascorbic acid, did substantially reduce short-term mortality(OR = 0.78, 95% CI 0.62 to 0.98; P = 0.030; OR = 0.57, 95% CI 0.36 to 0.91; P = 0.020). Conclusions According to current data of RCTs, antioxidant therapy, especially ascorbic acid, has a trend of improving short-term mortality in patients with sepsis, but the evidence remains to be further demonstrated.
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Affiliation(s)
- Hui Pei
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jie Qu
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Jian-Ming Chen
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Yao-Lu Zhang
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Min Zhang
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
| | - Guang-Ju Zhao
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, 325000, China
| | - Zhong-Qiu Lu
- Emergency Department, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, 325000, China
- Wenzhou Key Laboratory of Emergency and Disaster Medicine, Wenzhou, 325000, China
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Ali I, Zhang H, Zaidi SAA, Zhou G. Understanding the intricacies of cellular senescence in atherosclerosis: Mechanisms and therapeutic implications. Ageing Res Rev 2024; 96:102273. [PMID: 38492810 DOI: 10.1016/j.arr.2024.102273] [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: 11/14/2023] [Revised: 01/16/2024] [Accepted: 03/13/2024] [Indexed: 03/18/2024]
Abstract
Cardiovascular disease is currently the largest cause of mortality and disability globally, surpassing communicable diseases, and atherosclerosis is the main contributor to this epidemic. Aging is intimately linked to atherosclerosis development and progression, however, the mechanism of aging in atherosclerosis is not well known. To emphasize the significant research on the involvement of senescent cells in atherosclerosis, we begin by outlining compelling evidence that indicates various types of senescent cells and SASP factors linked to atherosclerotic phenotypes. We subsequently provide a comprehensive summary of the existing knowledge, shedding light on the intricate mechanisms through which cellular senescence contributes to the pathogenesis of atherosclerosis. Further, we cover that senescence can be identified by both structural changes and several senescence-associated biomarkers. Finally, we discuss that preventing accelerated cellular senescence represents an important therapeutic potential, as permanent changes may occur in advanced atherosclerosis. Together, the review summarizes the relationship between cellular senescence and atherosclerosis, and inspects the molecular knowledge, and potential clinical significance of senescent cells in developing senescent-based therapy, thus providing crucial insights into their biology and potential therapeutic exploration.
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Affiliation(s)
- Ilyas Ali
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-Aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Regenerative Technologies for Orthopaedic Diseases, Health Sciences Center, Shenzhen University, Shenzhen 518060, PR China; Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, PR China
| | - Hongliang Zhang
- Shenzhen University General Hospital, Shenzhen University, Shenzhen 518060, PR China
| | - Syed Aqib Ali Zaidi
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-Aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Regenerative Technologies for Orthopaedic Diseases, Health Sciences Center, Shenzhen University, Shenzhen 518060, PR China
| | - Guangqian Zhou
- Department of Medical Cell Biology and Genetics, Guangdong Key Laboratory of Genomic Stability and Disease Prevention, Shenzhen Key Laboratory of Anti-Aging and Regenerative Medicine, and Shenzhen Engineering Laboratory of Regenerative Technologies for Orthopaedic Diseases, Health Sciences Center, Shenzhen University, Shenzhen 518060, PR China; Guangdong Key Laboratory for Biomedical Measurements and Ultrasound Imaging, National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, School of Biomedical Engineering, Shenzhen University Medical School, Shenzhen 518060, PR China.
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Xiao Liang K. Interplay of mitochondria and diabetes: Unveiling novel therapeutic strategies. Mitochondrion 2024; 75:101850. [PMID: 38331015 DOI: 10.1016/j.mito.2024.101850] [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: 08/16/2023] [Revised: 12/26/2023] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
The interplay between mitochondrial function and diabetes has gained significant attention due to its crucial role in the pathogenesis and progression of the disease. Mitochondria, known as the cellular powerhouses, are essential for glucose metabolism. Dysfunction of these organelles has been implicated in the development of insulin resistance and beta-cell failure, both prominent features of diabetes. This comprehensive review explores the intricate mechanisms involved, including the generation of reactive oxygen species and the impact of mitochondrial DNA (mtDNA) mutations. Moreover, the review delves into emerging therapeutic strategies that specifically target mitochondria, such as mitochondria-targeted antioxidants, agents promoting mitochondrial biogenesis, and compounds modulating mitochondrial dynamics. The potential of these novel approaches is critically evaluated, taking into account their benefits and limitations, to provide a well-rounded perspective. Ultimately, this review emphasizes the importance of advancing our understanding of mitochondrial biology to revolutionize the treatment of diabetes.
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Cadile F, Recchia D, Ansaldo M, Rossi P, Rastelli G, Boncompagni S, Brocca L, Pellegrino MA, Canepari M. Diaphragm Fatigue in SMNΔ7 Mice and Its Molecular Determinants: An Underestimated Issue. Int J Mol Sci 2023; 24:14953. [PMID: 37834400 PMCID: PMC10574014 DOI: 10.3390/ijms241914953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/29/2023] [Accepted: 10/03/2023] [Indexed: 10/15/2023] Open
Abstract
Spinal muscular atrophy (SMA) is a genetic disorder characterized by the loss of spinal motor neurons leading to muscle weakness and respiratory failure. Mitochondrial dysfunctions are found in the skeletal muscle of patients with SMA. For obvious ethical reasons, the diaphragm muscle is poorly studied, notwithstanding the very important role that respiratory involvement plays in SMA mortality. The main goal of this study was to investigate diaphragm functionality and the underlying molecular adaptations in SMNΔ7 mice, a mouse model that exhibits symptoms similar to that of patients with intermediate type II SMA. Functional, biochemical, and molecular analyses on isolated diaphragm were performed. The obtained results suggest the presence of an intrinsic energetic imbalance associated with mitochondrial dysfunction and a significant accumulation of reactive oxygen species (ROS). In turn, ROS accumulation can affect muscle fatigue, cause diaphragm wasting, and, in the long run, respiratory failure in SMNΔ7 mice. Exposure to the antioxidant molecule ergothioneine leads to the functional recovery of the diaphragm, confirming the presence of mitochondrial impairment and redox imbalance. These findings suggest the possibility of carrying out a dietary supplementation in SMNΔ7 mice to preserve their diaphragm function and increase their lifespan.
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Affiliation(s)
- Francesca Cadile
- Department of Molecular Medicine, via Forlanini 6, University of Pavia, 27100 Pavia, Italy; (F.C.); (M.A.); (L.B.); (M.A.P.)
| | - Deborah Recchia
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (D.R.); (P.R.)
| | - Massimiliano Ansaldo
- Department of Molecular Medicine, via Forlanini 6, University of Pavia, 27100 Pavia, Italy; (F.C.); (M.A.); (L.B.); (M.A.P.)
| | - Paola Rossi
- Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy; (D.R.); (P.R.)
| | - Giorgia Rastelli
- Center for Advanced Studies and Technology, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy; (G.R.); (S.B.)
| | - Simona Boncompagni
- Center for Advanced Studies and Technology, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy; (G.R.); (S.B.)
- Department of Neuroscience, Imaging and Clinical Sciences, University G. d’Annunzio of Chieti-Pescara, 66100 Chieti, Italy
| | - Lorenza Brocca
- Department of Molecular Medicine, via Forlanini 6, University of Pavia, 27100 Pavia, Italy; (F.C.); (M.A.); (L.B.); (M.A.P.)
| | - Maria Antonietta Pellegrino
- Department of Molecular Medicine, via Forlanini 6, University of Pavia, 27100 Pavia, Italy; (F.C.); (M.A.); (L.B.); (M.A.P.)
| | - Monica Canepari
- Department of Molecular Medicine, via Forlanini 6, University of Pavia, 27100 Pavia, Italy; (F.C.); (M.A.); (L.B.); (M.A.P.)
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Zhao K, Han D, He SR, Wu LY, Liu WY, Zhong ZM. N-acetyl-L-cysteine attenuates oxidative stress-induced bone marrow endothelial cells apoptosis by inhibiting BAX/caspase 3 pathway. Biochem Biophys Res Commun 2023; 656:115-121. [PMID: 36963348 DOI: 10.1016/j.bbrc.2023.03.045] [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: 03/01/2023] [Accepted: 03/16/2023] [Indexed: 03/19/2023]
Abstract
Bone marrow endothelial cells (BMECs) play a crucial role in the maintenance of bone homeostasis. The decline in BMECs is associated with abnormal bone development and loss. At present, the mechanism of age-related oxidative stress enhancement in BMEC dysfunction remains unclear. Our experiment explored injury caused by oxidative stress enhancement in BMECs both in vivo and in vitro. The BMECs, indicators of oxidative stress, bone mass, and apoptosis-related proteins were analyzed in different age groups. We also evaluated the ability of N-Acetyl-L-cysteine (NAC) attenuate oxidative stress injury in BMECs. NAC treatment attenuated reactive oxygen species (ROS) overgeneration and apoptosis in BMECs in vitro and alleviated the loss of BMECs and bone mass in vivo. In conclusion, this study could improve our understanding of the mechanism of oxidative stress-induced BMECs injury and whether NAC has therapeutic potential in senile osteoporosis.
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Affiliation(s)
- Kai Zhao
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China; Department of Orthopaedics, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, PR China
| | - Dong Han
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China
| | - Si-Rui He
- Department of Orthopaedics, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, PR China
| | - Long-Yan Wu
- Ganzhou People's Hospital, Ganzhou, PR China
| | - Wu-Yang Liu
- Department of Orthopaedics, First Affiliated Hospital of Gannan Medical University, Ganzhou, 341000, PR China.
| | - Zhao-Ming Zhong
- Division of Spine Surgery, Department of Orthopaedics, Nanfang Hospital, Southern Medical University, Guangzhou, 510515, PR China.
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Wang Q, Liu J, Yang X, Zhou H, Li Y. Gold nanoparticles enhance proliferation and osteogenic differentiation of periodontal ligament stem cells by PINK1-mediated mitophagy. Arch Oral Biol 2023; 150:105692. [PMID: 37004436 DOI: 10.1016/j.archoralbio.2023.105692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/25/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023]
Abstract
OBJECTIVE Evidence suggests that gold nanoparticles (AuNPs) improve osteogenic differentiation of periodontal ligament stem cells (PDLSCs), PTEN-induced putative kinase 1 (PINK1) dependent mitophagy modulates inter-clonal communication among PDLSCs with osteogenic heterogeneity, but the mechanism remains vague. Therefore, the current research assessed the influence of AuNPs on proliferation, osteogenic differentiation and mitophagy of PDLSCs and the potential mechanism was analyzed. METHODS Gold nanospheres with a diameter of 5, 10, 20, 40, and 80 nm were synthesized and characterized through transmission electron microscopy, and rat PDLSCs were isolated using flow sorting. Next, PDLSCs were treated with AuNPs or PINK1 lentivirus to obtain its overexpression or suppression. Proliferation and osteogenic differentiation were evaluated by CCK-8, ALP staining, ARS staining, and immunoblotting of OCN, OPN, RUNX2, ALP, BMP2, and COL1. Mitochondrial quality, homeostasis and quantity were assessed though JC-1 staining, immunoblotting of Tom20, Tim23 and HSP60 and mitochondrial ROS detection. PINK1, Parkin, Beclin1 and LC3 expression was quantified to investigate mitophagy, using RT-qPCR and immunoblotting and the formation of RFP-GFP-LC3-labeled autophagosomes were also measured. RESULTS The proliferation ability of PDLSCs almost reached the maximum under 20 nm AuNPs for 24 h. AuNPs enhanced the proliferation and osteogenic differentiation of PDLSCs, improved mitochondrial quality and homeostasis as well as attenuated mitochondrial quantity. Additionally, mitophagy was enhanced by PDLSCs. Activation of PINK1 synergistically enhanced AuNPs-mediated mitophagy, mitochondrial quality, homeostasis and osteogenic differentiation in PDLSCs, obtaining opposite effects when PINK1 was suppressed. CONCLUSION AuNPs enhance proliferation and osteogenic differentiation of PDLSCs through PINK1-mediated mitophagy.
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Tsui KH, Li CJ. Mitoquinone shifts energy metabolism to reduce ROS-induced oxeiptosis in female granulosa cells and mouse oocytes. Aging (Albany NY) 2023; 15:246-260. [PMID: 36626243 PMCID: PMC9876626 DOI: 10.18632/aging.204475] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 12/16/2022] [Indexed: 01/11/2023]
Abstract
The female reproductive system is quite sensitive to regulation, and external environmental stimuli may cause oxidative stress which in turn may lead to accelerated aging and programmed cell death in female reproductive cells. The aim of this study was to investigate whether or not mitoquinone (MitoQ) could resist ROS-induced apoptosis in human granulosa cells and mouse oocytes. We found that the MitoQ treatment significantly reduced production of reactive oxygen species (ROS) and imbalance in mitochondrial membrane potential. The MitoQ treatment prevented an excessive mitochondrial fragmentation by upregulating Drp1 S637 and decreasing Drp1 S637 phosphorylation. More importantly, MitoQ maintained aerobic respiration and reduced anaerobic respiration by regulating reprogramming of intracellular energy metabolism, which enhanced cellular ATP production. MitoQ effectively reduced the expressions of AIFM1 and PGAM5, key molecules whose expressions were reversed not only in granulosa cells but also in mouse oocytes. Our findings suggest that MitoQ can ameliorate the mitochondrial deterioration caused by ROS and reprogram cellular energy metabolism, providing protection to cells against apoptosis. The presence of MitoQ may help in protecting human germ cells under in vitro culture conditions.
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Affiliation(s)
- Kuan-Hao Tsui
- Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
- Institute of Biopharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
- Department of Obstetrics and Gynaecology, National Yang-Ming University School of Medicine, Taipei 112, Taiwan
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taipei 112, Taiwan
- Department of Pharmacy and Master Program, College of Pharmacy and Health Care, Tajen University, Pingtung County 907, Taiwan
- Department of Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
- College of Health and Nursing, Meiho University, Pingtung County 912, Taiwan
| | - Chia-Jung Li
- Department of Obstetrics and Gynaecology, Kaohsiung Veterans General Hospital, Kaohsiung 813, Taiwan
- Institute of Biopharmaceutical Sciences, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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Hao J, Xi Y, Jiao L, Wen X, Wu R, Chang G, Sun F, Wei C, Li H. Exogenous hydrogen sulfide inhibits the senescence of cardiomyocytes through modulating mitophagy in rats. Cell Signal 2022; 100:110465. [PMID: 36087824 DOI: 10.1016/j.cellsig.2022.110465] [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: 07/26/2022] [Revised: 08/18/2022] [Accepted: 09/02/2022] [Indexed: 01/10/2023]
Abstract
Hydrogen sulfide (H2S), a gaseous molecule, has been shown to be involved in the regulation of body pathophysiological processes. Aging is related to structural and functional alterations within the heart. There is evidence that diminished mitophagy accelerates the aging process. Studies in recent years have revealed that plasma levels of H2S in humans and old rats decrease with age, and H2S acts as a cytoprotective mediator in the aging process. However, it is unclear whether H2S can delay the senescence of cardiomyocytes by regulating mitophagy. Our present results showed that exogenous H2S inhibited mitochondrial damage, oxidative stress and cell apoptosis, and enhanced mitophagy through upregulating the SIRT1-PINK1-parkin pathway in myocardial tissues of aged rats and cultured aged cardiomyocytes. Furthermore, the effect of exogenous H2S on the above indicators was the same as that of SRT1720 (a SIRT1 agonist) and kinetin (a PINK1 activator). Our findings suggest that exogenous H2S inhibits the senescence of cardiomyocytes by increasing mitophagy via upregulation of the SIRT1-PINK1-parkin pathway in rats.
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Affiliation(s)
- Jinghui Hao
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China
| | - Yuxin Xi
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China
| | - Lijie Jiao
- School of Medicine, Xiamen University, Xiamen 361102, Fujian, China
| | - Xin Wen
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China; Department of Pathology, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, Jinan 250013, Shandong, China
| | - Ren Wu
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China; School of Medicine, Xiamen University, Xiamen 361102, Fujian, China
| | - Guiquan Chang
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China
| | - Fengqi Sun
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China
| | - Can Wei
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China
| | - Hongzhu Li
- Department of Pathophysiology, Harbin Medical University, Harbin 150081, Heilongjiang, China; School of Medicine, Xiamen University, Xiamen 361102, Fujian, China.
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Guo X, Dong Z, Li Q, Wan D, Zhong J, Dongzhi D, Huang M. Flavonoids from Rhododendron nivale Hook. f delay aging via modulation of gut microbiota and glutathione metabolism. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2022; 104:154270. [PMID: 35760023 DOI: 10.1016/j.phymed.2022.154270] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 05/30/2022] [Accepted: 06/11/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND Rhododendron nivale Hook. f (R.n), one of the four Manna Stash used in Tibetan medicine to delay aging, possesses anti-aging pharmacological activity. However, which R.n ingredients contain anti-aging properties and the underlying mechanisms involved are unclear. HYPOTHESIS/PURPOSE Based on interactions between gut microbiota and natural medicines and the important role of gut microbiota in anti-aging, the study investigated the hypothesis that R.n possesses anti-aging properties and the interaction of gut microbiota with R.n is responsible for its anti-aging effects. STUDY DESIGN The primary active ingredients of R.n and their target function and pathway enrichment were explored. An aging mouse model was used to clarify the underlying anti-aging mechanisms of R.n. METHODS Chromatography, spectroscopy, nuclear magnetic technology, and pharmacology were used to reveal the major active ingredients of ethanol extract residues of R.n (RNEA). The target function and pathway enrichment of these active ingredients were explored. Plasma metabolomics coupled with intestinal flora evaluation and bioinformatics analysis was used to clarify the underlying anti-aging mechanisms of RNEA. RESULTS Myricetin-3-β-D-xylopyranoside, hyperin, goospetin-8-methyl ether 3-β-D-galactoside, and diplomorphanin B were separated and identified from RNEA. The network pharmacology study revealed that the active ingredients' target function and pathway enrichment focused mainly on the glutathione antioxidant system. In a D-galactose-induced mouse model of aging, RNEA was shown to possess suitable anti-aging pharmacological activity, as indicated by the amelioration of memory loss and weakened superoxide dismutase and glutathione peroxidase activities. Plasma metabolomics coupled with intestinal flora examination and bioinformatics analysis revealed that RNEA could regulate the expression of glutathione-related enzymes and ameliorate D-galactose-induced imbalances in methionine, glycine, and serine, and betaine and galactose metabolism. The results showed that RNEA reshaped the disordered intestinal flora and mitigated the D-galactose-mediated decline in glutathione oxidase expression, further confirming that the anti-aging effect of RNEA was closely related to regulation of the glutathione antioxidant system. CONCLUSION RNEA, consisting of myricetin-3-β-D-xylopyranoside, hyperin, goospetin-8-methyl ether 3-β-D-galactoside, and diplomorphanin B, possesses anti-aging activity. The anti-aging effect of RNEA might be due to reshaping intestinal flora homeostasis, increasing the expression of glutathione peroxidase 4 in the intestines and liver, enhancing glutathione peroxidase activity, and reinforcing the glutathione antioxidant system.
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Affiliation(s)
- Xiao Guo
- State Key Laboratory of Tibetan Medicine Research and Development, Tibetan Medicine Research Center, Tibetan Medicial College, Qinghai University, Xining, Qinghai 810016, China
| | - Zhen Dong
- College of Veterinary Medicine, Hunan Agricultural University, Changsha 410128, China
| | - Qien Li
- State Key Laboratory of Tibetan Medicine Research and Development, Tibetan Medicine Research Center, Tibetan Medicial College, Qinghai University, Xining, Qinghai 810016, China
| | - Digao Wan
- State Key Laboratory of Tibetan Medicine Research and Development, Tibetan Medicine Research Center, Tibetan Medicial College, Qinghai University, Xining, Qinghai 810016, China
| | - Jiangbin Zhong
- State Key Laboratory of Tibetan Medicine Research and Development, Tibetan Medicine Research Center, Tibetan Medicial College, Qinghai University, Xining, Qinghai 810016, China
| | - Duojie Dongzhi
- State Key Laboratory of Tibetan Medicine Research and Development, Tibetan Medicine Research Center, Tibetan Medicial College, Qinghai University, Xining, Qinghai 810016, China
| | - Meizhou Huang
- Academician (Expert) Workstation of Sichuan Province, The Affiliated Hospital of Southwest Medical University, Luzhou 646000, China.
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Brasil FB, de Almeida FJS, Luckachaki MD, Dall'Oglio EL, de Oliveira MR. Pinocembrin pretreatment counteracts the chlorpyrifos-induced HO-1 downregulation, mitochondrial dysfunction, and inflammation in the SH-SY5Y cells. Metab Brain Dis 2021; 36:2377-2391. [PMID: 34338973 DOI: 10.1007/s11011-021-00803-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2021] [Accepted: 07/22/2021] [Indexed: 12/14/2022]
Abstract
Chlorpyrifos (CPF), an insecticide, induces pro-oxidant, pro-inflammatory, and pro-apoptotic effects in animal cells. Contamination with CPF occurs not only in farms, since CPF is found in the food consumed in homes. Recently, it was demonstrated that CPF affects the mitochondria, inhibiting components of the electron transfer chain (ETC), causing loss of mitochondrial membrane potential (MMP), and reducing the synthesis of adenosine triphosphate (ATP) by the Complex V. Pinocembrin (PB) is found in propolis and exhibits antioxidant, anti-inflammatory, and anti-apoptotic effects in mammalian cells. PB is a potent inducer of the nuclear factor erythroid 2-related factor 2 (Nrf2), which is a major transcription factor controlling the expression of heme oxygease-1 (HO-1), among others. In the present work, we investigated whether PB would be able to prevent the mitochondrial and immune dysfunctions in the human neuroblastoma SH-SY5Y cells exposed to CPF. PB was tested at 1-25 µM for 4 h before the administration of CPF at 100 µM for additional 24 h. We found that PB prevented the CPF-induced inhibition of ETC, loss of MMP, and decline in the ATP synthesis. PB also promoted anti-inflammatory actions in this experimental model. Silencing of Nrf2 or inhibition of HO-1 suppressed the PB-induced effects in the CPF-challenged cells. Thus, PB promoted beneficial effects by a mechanism dependent on the Nrf2/HO-1/CO + BR axis in the CPF-treated cells.
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Affiliation(s)
- Flávia Bittencourt Brasil
- Departamento de Ciências da Natureza, Campus Universitário de Rio das Ostras - Universidade Federal Fluminense (UFF), Rio de Janeiro, Brazil
| | - Fhelipe Jolner Souza de Almeida
- Programa de Pós-Graduação Em Ciências da Saúde (PPGCS), Universidade Federal de Mato Grosso (UFMT), Cuiaba, MT, Brazil
- Grupo de Estudos Em Neuroquímica E Neurobiologia de Moléculas Bioativas, Departamento de Química, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, CEP 78060-900, Brazil
| | - Matheus Dargesso Luckachaki
- Grupo de Estudos Em Neuroquímica E Neurobiologia de Moléculas Bioativas, Departamento de Química, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, CEP 78060-900, Brazil
| | - Evandro Luiz Dall'Oglio
- Grupo de Estudos Em Neuroquímica E Neurobiologia de Moléculas Bioativas, Departamento de Química, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, CEP 78060-900, Brazil
| | - Marcos Roberto de Oliveira
- Grupo de Estudos Em Neuroquímica E Neurobiologia de Moléculas Bioativas, Departamento de Química, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT, CEP 78060-900, Brazil.
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Tiwari S, Mohanty TK, Bhakat M, Kumar N, Baithalu RK, Nath S, Yadav HP, Dewry RK. Comparative evidence support better antioxidant efficacy of mitochondrial-targeted (Mitoquinone) than cytosolic (Resveratrol) antioxidant in improving in-vitro sperm functions of cryopreserved buffalo (Bubalus bubalis) semen. Cryobiology 2021; 101:125-134. [PMID: 33933431 DOI: 10.1016/j.cryobiol.2021.04.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 04/06/2021] [Accepted: 04/23/2021] [Indexed: 12/12/2022]
Abstract
The present study compared the effect of mitochondria-targeted (Mitoquinone, MitoQ) and untargeted cytosolic antioxidant (Resveratrol, RESV) supplementation on lipid peroxidation (LPO) and in-vitro sperm functions of cryopreserved buffalo bull semen. To optimize additive's concentration, sperm pellet obtained from twenty-four ejaculates was supplemented with different concentrations of MitoQ (20 nM, 100 nM, 200 nM); and RESV (10 μM, 25 μM, 50 μM) against control in the extender. The post-thaw sperm motility, livability, and membrane integrity were higher (P < 0.05) in 200 nM MitoQ and 50 μM RESV than other concentrations used. In another experiment, sperm pellet from thirty-two ejaculates was supplemented with 200 nM MitoQ and 50 μM RESV in the extender. Pre-freeze and post-thaw progressive motility and livability were higher (P < 0.05) in MitoQ (200 nM) than RESV (50 μM) treatment. MitoQ supplementation improved post-thaw membrane integrity (CFDA-PI) higher (P < 0.05) than RESV, however, hypo-osmotic swelling response observed no improvement with RESV treatment. Post-thaw LPO rate was lower (P < 0.05) and Bovine cervical mucus penetration was higher (P < 0.05) in MitoQ than RESV treatment. In post-thaw semen, MitoQ showed higher (P < 0.05) proportion of acrosome intact (FITC-PNA), live non-apoptotic (P < 0.01) sperm with a higher reduction (P < 0.05) in membrane scrambling. MitoQ improved (P < 0.01) proportion of sperm with high Mitochondrial Membrane Potential and low LPO (P < 0.01) than RESV treatment. In conclusion, improvement in post-thaw in-vitro sperm functions and cryo-tolerance was more evident in MitoQ than RESV supplemented buffalo bull semen. Our study provides a better strategy to mitigate oxidative stress by enhancing mitochondrial antioxidant system with targeted antioxidants than cytosolic antioxidant supplementation.
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Affiliation(s)
- S Tiwari
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - T K Mohanty
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - M Bhakat
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - N Kumar
- Animal Reproduction, Gynaecology and Obstetrics, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - R K Baithalu
- Animal Reproduction, Gynaecology and Obstetrics, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - S Nath
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - H P Yadav
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
| | - R K Dewry
- Artificial Breeding Research Centre, LPM Division, ICAR-National Dairy Research Institute, Karnal, Haryana, India.
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Self-Associating Polymers Chitosan and Hyaluronan for Constructing Composite Membranes as Skin-Wound Dressings Carrying Therapeutics. Molecules 2021; 26:molecules26092535. [PMID: 33926140 PMCID: PMC8123578 DOI: 10.3390/molecules26092535] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/14/2021] [Accepted: 04/20/2021] [Indexed: 12/23/2022] Open
Abstract
Chitosan, industrially acquired by the alkaline N-deacetylation of chitin, belongs to β-N-acetyl-glucosamine polymers. Another β-polymer is hyaluronan. Chitosan, a biodegradable, non-toxic, bacteriostatic, and fungistatic biopolymer, has numerous applications in medicine. Hyaluronan, one of the major structural components of the extracellular matrix in vertebrate tissues, is broadly exploited in medicine as well. This review summarizes that these two biopolymers have a mutual impact on skin wound healing as skin wound dressings and carriers of remedies.
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Carvalho C, Cardoso S. Diabetes-Alzheimer's Disease Link: Targeting Mitochondrial Dysfunction and Redox Imbalance. Antioxid Redox Signal 2021; 34:631-649. [PMID: 32098477 DOI: 10.1089/ars.2020.8056] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Significance: It is of common sense that the world population is aging and life expectancy is increasing. However, as the population ages, there is also an exponential risk to live into the ages where the brain-related frailties and neurodegenerative diseases develop. Hand in hand with those events, the world is witnessing a major upsurge in diabetes diagnostics. Remarkably, all of this seems to be narrowly related, and clinical and research communities highlight for the upcoming threat that it will represent for the present and future generations. Recent Advances: It is of utmost importance to clarify the influence of diabetes-related metabolic features on brain health and the mechanisms underlying the increased likelihood of developing neurodegenerative diseases, in particular Alzheimer's disease. Thereupon, a wealth of evidence suggests that mitochondria and associated oxidative stress are at the root of the link between diabetes and co-occurring disorders in the brain. Critical Issues: The scientific community has been challenged with constant failures of clinical trials raising major issues in the advance of the therapeutic field to fight chronic diseases epidemics. Thus, a change of paradigms is urgently needed. Future Directions: It has become urgent to identify new and solid candidates able to clinically reproduce the positive outcomes obtained in preclinical studies. On this basis, strategies settled to counteract diabetes-induced neurodegeneration encompassing mitochondrial dysfunction, redox status imbalance, and/or insulin dysregulation seem worth to follow. Hopefully, ongoing innovative research based on reliable experimental tools will soon bring the desired answers allowing pharmaceutical industry to apply such knowledge to human medicine.
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Affiliation(s)
- Cristina Carvalho
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,IIIUC-Interdisciplinarie Institute of Investigation, University of Coimbra, Coimbra, Portugal
| | - Susana Cardoso
- CNC-Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal.,CIBB-Center for Innovative Biomedicine and Biotechnology, University of Coimbra, Coimbra, Portugal.,IIIUC-Interdisciplinarie Institute of Investigation, University of Coimbra, Coimbra, Portugal
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19
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Rogobete AF, Bedreag OH, Papurica M, Popovici SE, Bratu LM, Rata A, Barsac CR, Maghiar A, Garofil DN, Negrea M, Petcu LB, Toma D, Dumbuleu CM, Rimawi S, Sandesc D. Multiparametric Monitoring of Hypnosis and Nociception-Antinociception Balance during General Anesthesia-A New Era in Patient Safety Standards and Healthcare Management. ACTA ACUST UNITED AC 2021; 57:medicina57020132. [PMID: 33540844 PMCID: PMC7913052 DOI: 10.3390/medicina57020132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 01/27/2021] [Accepted: 01/28/2021] [Indexed: 11/16/2022]
Abstract
The development of general anesthesia techniques and anesthetic substances has opened new horizons for the expansion and improvement of surgical techniques. Nevertheless, more complex surgical procedures have brought a higher complexity and longer duration for general anesthesia, which has led to a series of adverse events such as hemodynamic instability, under- or overdosage of anesthetic drugs, and an increased number of post-anesthetic events. In order to adapt the anesthesia according to the particularities of each patient, the multimodal monitoring of these patients is highly recommended. Classically, general anesthesia monitoring consists of the analysis of vital functions and gas exchange. Multimodal monitoring refers to the concomitant monitoring of the degree of hypnosis and the nociceptive-antinociceptive balance. By titrating anesthetic drugs according to these parameters, clinical benefits can be obtained, such as hemodynamic stabilization, the reduction of awakening times, and the reduction of postoperative complications. Another important aspect is the impact on the status of inflammation and the redox balance. By minimizing inflammatory and oxidative impact, a faster recovery can be achieved that increases patient safety. The purpose of this literature review is to present the most modern multimodal monitoring techniques to discuss the particularities of each technique.
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Affiliation(s)
- Alexandru Florin Rogobete
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Ovidiu Horea Bedreag
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Marius Papurica
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Sonia Elena Popovici
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
- Correspondence: (S.E.P.); (L.M.B.); Tel.: +40-728-001-971
| | - Lavinia Melania Bratu
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Correspondence: (S.E.P.); (L.M.B.); Tel.: +40-728-001-971
| | - Andreea Rata
- Department of Vascular Surgery, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania;
- Clinic of Vascular Surgery, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania
| | - Claudiu Rafael Barsac
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Andra Maghiar
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
| | - Dragos Nicolae Garofil
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, 020021 Bucharest, Romania;
| | - Mihai Negrea
- Faculty of Political, Administrative and Communication Sciences, Babes-Bolyai University, 400376 Cluj Napoca, Romania;
| | - Laura Bostangiu Petcu
- Faculty of Management, The Bucharest University of Economic Studies, 020021 Bucharest, Romania;
| | - Daiana Toma
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Corina Maria Dumbuleu
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Samir Rimawi
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
| | - Dorel Sandesc
- Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (A.F.R.); (O.H.B.); (M.P.); (C.R.B.); (A.M.); (D.S.)
- Anaesthesia and Intensive Care Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timisoara, Romania; (D.T.); (C.M.D.)
- Clinic of Anaesthesia and Intensive Care, Emergency County Hospital “Pius Brinzeu”, 300723 Timisoara, Romania;
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Mitochondria exert age-divergent effects on recovery from spinal cord injury. Exp Neurol 2021; 337:113597. [PMID: 33422552 PMCID: PMC7870583 DOI: 10.1016/j.expneurol.2021.113597] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 12/15/2020] [Accepted: 01/05/2021] [Indexed: 02/07/2023]
Abstract
The extent that age-dependent mitochondrial dysfunction drives neurodegeneration is not well understood. This study tested the hypothesis that mitochondria contribute to spinal cord injury (SCI)-induced neurodegeneration in an age-dependent manner by using 2,4-dinitrophenol (DNP) to uncouple electron transport, thereby increasing cellular respiration and reducing reactive oxygen species (ROS) production. We directly compared the effects of graded DNP doses in 4- and 14-month-old (MO) SCI-mice and found DNP to have increased efficacy in mitochondria isolated from 14-MO animals. In vivo, all DNP doses significantly exacerbated 4-MO SCI neurodegeneration coincident with worsened recovery. In contrast, low DNP doses (1.0-mg/kg/day) improved tissue sparing, reduced ROS-associated 3-nitrotyrosine (3-NT) accumulation, and improved anatomical and functional recovery in 14-MO SCI-mice. By directly comparing the effects of DNP between ages we demonstrate that mitochondrial contributions to neurodegeneration diverge with age after SCI. Collectively, our data indicate an essential role of mitochondria in age-associated neurodegeneration.
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Ray B, Bhat A, Mahalakshmi AM, Tuladhar S, Bishir M, Mohan SK, Veeraraghavan VP, Chandra R, Essa MM, Chidambaram SB, Sakharkar MK. Mitochondrial and Organellar Crosstalk in Parkinson's Disease. ASN Neuro 2021; 13:17590914211028364. [PMID: 34304614 PMCID: PMC8317254 DOI: 10.1177/17590914211028364] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 04/04/2021] [Accepted: 06/07/2021] [Indexed: 12/17/2022] Open
Abstract
Mitochondrial dysfunction is a well-established pathological event in Parkinson's disease (PD). Proteins misfolding and its impaired cellular clearance due to altered autophagy/mitophagy/pexophagy contribute to PD progression. It has been shown that mitochondria have contact sites with endoplasmic reticulum (ER), peroxisomes and lysosomes that are involved in regulating various physiological processes. In pathological conditions, the crosstalk at the contact sites initiates alterations in intracellular vesicular transport, calcium homeostasis and causes activation of proteases, protein misfolding and impairment of autophagy. Apart from the well-reported molecular changes like mitochondrial dysfunction, impaired autophagy/mitophagy and oxidative stress in PD, here we have summarized the recent scientific reports to provide the mechanistic insights on the altered communications between ER, peroxisomes, and lysosomes at mitochondrial contact sites. Furthermore, the manuscript elaborates on the contributions of mitochondrial contact sites and organelles dysfunction to the pathogenesis of PD and suggests potential therapeutic targets.
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Affiliation(s)
- Bipul Ray
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Abid Bhat
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | | | - Sunanda Tuladhar
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Muhammed Bishir
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
| | - Surapaneni Krishna Mohan
- Department of Biochemistry, Panimalar Medical College Hospital & Research Institute, Varadharajapuram, Poonamallee, Chennai – 600123, India
| | - Vishnu Priya Veeraraghavan
- Department of Biochemistry, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai - 600 077, India
| | - Ramesh Chandra
- Drug Discovery & Development Laboratory, Department of Chemistry, University of Delhi, Delhi, 110007, India
- Dr. B. R. Ambedkar Centre for Biomedical Research, University of Delhi, Delhi, 110007, India
| | - Musthafa Mohamed Essa
- Department of Food Science and Nutrition, CAMS, Sultan Qaboos University, Muscat, Oman
- Aging and Dementia Research Group, Sultan Qaboos University, Muscat, Sultanate of Oman
- Visiting Professor, Biomedical Sciences department, University of Pacific, Sacramento, CA, USA
| | - Saravana Babu Chidambaram
- Department of Pharmacology, JSS College of Pharmacy, JSS Academy of Higher Education & Research, Mysuru, India
- Centre for Experimental Pharmacology and Toxicology, Central Animal Facility, JSS Academy of Higher Education & Research, Mysuru, India
| | - Meena Kishore Sakharkar
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK- S7N 5A2, Canada
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22
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Nguyen TT, Vo TK, Vo GV. Therapeutic Strategies and Nano-Drug Delivery Applications in Management of Aging Alzheimer's Disease. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1286:183-198. [PMID: 33725354 DOI: 10.1007/978-3-030-55035-6_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Alzheimer's disease (AD) is a neurodegenerative disorder in which the death of brain cells causes memory loss and cognitive decline. Existing drugs only suppress symptoms or delay further deterioration but do not address the cause of the disease. In spite of screening numerous drug candidates against various molecular targets of AD, only a few candidates, such as acetylcholinesterase inhibitors, are currently utilized as an effective clinical therapy. Currently, nano-based therapies can make a difference, providing new therapeutic options by helping drugs to cross the blood-brain barrier and enter the brain more effectively. The main aim of this review was to highlight advances in research on the development of nano-based therapeutics for improved treatment of AD.
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Affiliation(s)
- Thuy Trang Nguyen
- Faculty of Pharmacy, Ho Chi Minh City University of Technology (HUTECH), Ho Chi Minh City, Vietnam
| | - Tuong Kha Vo
- Vietnam Sports Hospital, Ministry of Culture, Sports and Tourism, Hanoi, Vietnam
| | - Giau Van Vo
- Department of Industrial and Environmental Engineering, Gachon University, Seongnam-si, South Korea. .,Department of Bionano Technology, Gachon University, Seongnam-si, South Korea. .,School of Medicine, Vietnam National University Ho Chi Minh City, Ho Chi Minh City, Vietnam.
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23
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Ouyang L, Gong J. Mitochondrial-targeted ubiquinone: A potential treatment for COVID-19. Med Hypotheses 2020; 144:110161. [PMID: 32795832 PMCID: PMC7403158 DOI: 10.1016/j.mehy.2020.110161] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 07/16/2020] [Accepted: 08/01/2020] [Indexed: 12/16/2022]
Abstract
Immune dysregulation characterized by T cell exhaustion and high level of inflammatory cytokines is associated with severe COVID-19. Figuring out the early event of immune dysregulation would provide a potential treatment for COVID-19. Recent evidence indicate that mitochondrial dysfunction participates in the development of COVID-19 and may be responsible for the dysregulated immune response. Mitochondrial-targeted ubiquinone (MitoQ), a mitochondrial-targeted antioxidant, shows beneficial effects on various diseases through improving mitochondrial dysfunction. We hypothesize that MitoQ could act as a potential treatment in COVID-19. MitoQ may alleviate cytokine storm and restore the function of exhausted T cells in COVID-19 patients through improving mitochondrial dysfunction. In this article, we provide evidence to support the use of MitoQ as a potential treatment or adjunct therapy in the context of COVID-19.
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Affiliation(s)
- Lichen Ouyang
- Department of Immunology, School of Medicine, Jianghan University, Wuhan, China.
| | - Jie Gong
- The First Clinical College, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Institute of Anesthesiology and Critical Care Medicine, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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24
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Physicochemical characterization and targeting performance of triphenylphosphonium nano-polyplexes. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.113873] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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25
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de Oliveira MR, de Souza ICC, Brasil FB. Promotion of Mitochondrial Protection by Emodin in Methylglyoxal-Treated Human Neuroblastoma SH-SY5Y Cells: Involvement of the AMPK/Nrf2/HO-1 Axis. Neurotox Res 2020; 39:292-304. [PMID: 32930996 DOI: 10.1007/s12640-020-00287-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/07/2020] [Accepted: 09/08/2020] [Indexed: 12/14/2022]
Abstract
Mitochondrial dysfunction is part of the mechanism of several human diseases. This negative circumstance may be induced by certain toxicants, as methylglyoxal (MG). MG is a reactive dicarbonyl presenting both endogenous and exogenous sources and is also able to induce protein cross-linking and glycation. Emodin (EM; 1,3,8-trihydroxy-6-methylanthracene-9,10-dione; C15H10O5) is a cytoprotective agent. Nonetheless, it was not previously demonstrated whether EM would be able to promote mitochondrial protection in cells challenged with MG. Therefore, we investigated here whether and how EM would prevent the MG-induced mitochondrial collapse in the human neuroblastoma SH-SY5Y cells. We found that a pretreatment (for 4 h) with EM at 40 μM prevented the MG-induced mitochondrial dysfunction (i.e., decreased activity of the complexes I and V, reduced adenosine triphosphate levels, and loss of mitochondrial membrane potential) in the SH-SY5Y cells. EM also prevented the redox impairment induced by MG in mitochondrial membranes. Inhibiting the adenosine monophosphate-activated protein kinase (AMPK) or silencing of the nuclear factor erythroid 2-related factor 2 (Nrf2), transcription factor abolished the EM-induced protection. Inhibition of heme oxygenase-1 (HO-1) also blocked the EM-induced mitochondrial protection. Therefore, EM protected the mitochondria by a mechanism dependent on the AMPK/Nrf2/HO-1 signaling pathway in MG-challenged SH-SY5Y cells.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Grupo de Estudos em Neuroquímica e Neurobiologia de Moléculas Bioativas, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP, Cuiaba, MT, 78060-900, Brazil.
| | - Izabel Cristina Custódio de Souza
- Programa de Pós-Graduação em Bioquímica e Bioprospecção (PPGBBIO), Centro de Ciências Químicas, Farmacêuticas e de Alimentos (CCQFA), Instituto de Biologia, Universidade Federal de Pelotas (UFPel), Pelotas, RS, Brazil
| | - Flávia Bittencourt Brasil
- Departamento de Ciências da Natureza, Campus Universitário de Rio das Ostras - Universidade Federal Fluminense (UFF), Rio de Janeiro, Brazil
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Sousa Â, Faria R, Albuquerque T, Bhatt H, Biswas S, Queiroz JA, Costa D. Design of experiments to select triphenylphosphonium-polyplexes with suitable physicochemical properties for mitochondrial gene therapy. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112488] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Arena C, Vitale L, Bianchi AR, Mistretta C, Vitale E, Parisi C, Guerriero G, Magliulo V, De Maio A. The Ageing Process Affects the Antioxidant Defences and the Poly (ADPribosyl)ation Activity in Cistus Incanus L. Leaves. Antioxidants (Basel) 2019; 8:E528. [PMID: 31698730 PMCID: PMC6912739 DOI: 10.3390/antiox8110528] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/25/2019] [Accepted: 11/04/2019] [Indexed: 12/22/2022] Open
Abstract
The ageing process in living organisms is characterised by the accumulation of several deleterious changes occurring in cells and tissues. The increase of reactive oxygen species with the advancement of age is responsible for the oxidative damage to proteins, lipids and DNA, enhancing the risk of diseases. The antioxidant response and the activation of the poly(ADP-ribosyl)ation process represent the first defences activated by organisms at all life stages to counteract damage to cell structures and genomic material. The regulation of poly(ADP ribosyl)ation with age is little known in plants, especially in combination with antioxidant defences modulation. In this study, the relationships between poly (ADP-ribose) polymerase (PARP) activity and enzymatic and non-enzymatic antioxidant pool have been studied together with the photosynthetic apparatus efficiency in the Mediterranean species Cistus incanus L., examining leaves at different developmental stages: young, mature and senescent. The photosynthetic performance was evaluated by chlorophyll a fluorescence measurement, the total soluble and fat-soluble antioxidant capacity, as well as the activities of enzymes superoxide dismutase (SOD), catalase (CAT), peroxidase (POD) and glutathione-S-transferase (GST), were determined by spectrophotometer, PARP activity was assessed by radioactive labelling. The highest photochemical activity was observed in young leaves, together with the highest GST activity. With the progress of the ageing process, the non-enzymatic antioxidant pool (namely ascorbic acid, α-tocopherol) declined, reaching the lowest value in senescent leaves, whereas PARP activity rose significantly. The overall results indicate that the decline of photosynthetic apparatus efficiency during senescence is due to the reduction of specific defences against oxidative damages, which increase the damages to DNA, as demonstrated by PARP activity rise.
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Affiliation(s)
- Carmen Arena
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
| | - Luca Vitale
- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFoM), Via Patacca 85, 80056 Ercolano (NA), Italy; (L.V.); (C.M.); (V.M.)
| | - Anna Rita Bianchi
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
| | - Carmela Mistretta
- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFoM), Via Patacca 85, 80056 Ercolano (NA), Italy; (L.V.); (C.M.); (V.M.)
| | - Ermenegilda Vitale
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
| | - Costantino Parisi
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
| | - Giulia Guerriero
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
| | - Vincenzo Magliulo
- Istituto per i Sistemi Agricoli e Forestali del Mediterraneo (CNR-ISAFoM), Via Patacca 85, 80056 Ercolano (NA), Italy; (L.V.); (C.M.); (V.M.)
| | - Anna De Maio
- Dipartimento di Biologia, Università degli Studi di Napoli Federico II, Via Cinthia, 80126 Napoli, Italy; (C.A.); (A.R.B.); (E.V.); (C.P.); (G.G.)
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Li J, Cha R, Luo H, Hao W, Zhang Y, Jiang X. Nanomaterials for the theranostics of obesity. Biomaterials 2019; 223:119474. [PMID: 31536920 DOI: 10.1016/j.biomaterials.2019.119474] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/01/2019] [Accepted: 09/03/2019] [Indexed: 02/06/2023]
Abstract
As a chronic and lifelong disease, obesity not only significant impairs health but also dramatically shortens life span (at least 10 years). Obesity requires a life-long effort for the successful treatment because a number of abnormalities would appear in the development of obesity. Nanomaterials possess large specific surface area, strong absorptivity, and high bioavailability, especially the good targeting properties and adjustable release rate, which would benefit the diagnosis and treatment of obesity and obesity-related metabolic diseases. Herein, we discussed the therapy and diagnosis of obesity and obesity-related metabolic diseases by using nanomaterials. Therapies of obesity with nanomaterials include improving intestinal health and reducing energy intake, targeting and treating functional cell abnormalities, regulating redox homeostasis, and removing free lipoprotein in blood. Diagnosis of obesity-related metabolic diseases would benefit the therapy of these diseases. The development of nanomaterials will promote the diagnosis and therapy of obesity and obesity-related metabolic diseases.
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Affiliation(s)
- Juanjuan Li
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Ruitao Cha
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China.
| | - Huize Luo
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Wenshuai Hao
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China
| | - Yan Zhang
- Department of Cardiac Surgery, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, No.167 North Lishi Road, Xicheng District, Beijing, 100032, PR China.
| | - Xingyu Jiang
- Beijing Engineering Research Center for BioNanotechnology and CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, CAS Center for Excellence in Nanoscience, National Center for NanoScience and Technology, No. 11 Zhongguancun Beiyitiao, Beijing, 100190, PR China; Department of Biomedical Engineering, Southern University of Science and Technology, No. 1088 Xueyuan Road, Nanshan District, Shenzhen, Guangdong, 518055, PR China; University of Chinese Academy of Sciences, 19 A Yuquan Road, Shijingshan District, Beijing, 100049, PR China.
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29
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Priyanka K, Singh S. Applications of conjugated systems, nanomedicines, peptides and herbal drugs as mitochondrial targeted delivery systems in the treatment of oxidative stress induced diabetes. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.05.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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30
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Garcia AJ, Viemari JC, Khuu MA. Respiratory rhythm generation, hypoxia, and oxidative stress-Implications for development. Respir Physiol Neurobiol 2019; 270:103259. [PMID: 31369874 DOI: 10.1016/j.resp.2019.103259] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 07/15/2019] [Accepted: 07/24/2019] [Indexed: 02/07/2023]
Abstract
Encountered in a number of clinical conditions, repeated hypoxia/reoxygenation during the neonatal period can pose both a threat to immediate survival as well as a diminished quality of living later in life. This review focuses on our current understanding of central respiratory rhythm generation and the role that hypoxia and reoxygenation play in influencing rhythmogenesis. Here, we examine the stereotypical response of the inspiratory rhythm from the preBötzinger complex (preBötC), basic neuronal mechanisms that support rhythm generation during the peri-hypoxic interval, and the physiological consequences of inspiratory network responsivity to hypoxia and reoxygenation, acute and chronic intermittent hypoxia, and oxidative stress. These topics are examined in the context of Sudden Infant Death Syndrome, apneas of prematurity, and neonatal abstinence syndrome.
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Affiliation(s)
- Alfredo J Garcia
- Institute for Integrative Physiology, Section of Emergency Medicine, The University of Chicago, Chicago, 60637, IL, United States
| | - Jean Charles Viemari
- Institut de Neurosciences de la Timone, P3M team, UMR7289 CNRS & AMU, Faculté de Médecine de la Timone, 27 Bd Jean Moulin, Marseille, 13005, France
| | - Maggie A Khuu
- Institute for Integrative Physiology, Section of Emergency Medicine, The University of Chicago, Chicago, 60637, IL, United States
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31
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Detaille D, Pasdois P, Sémont A, Dos Santos P, Diolez P. An old medicine as a new drug to prevent mitochondrial complex I from producing oxygen radicals. PLoS One 2019; 14:e0216385. [PMID: 31048932 PMCID: PMC6497312 DOI: 10.1371/journal.pone.0216385] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 04/21/2019] [Indexed: 12/25/2022] Open
Abstract
Findings Here, we demonstrate that OP2113 (5-(4-Methoxyphenyl)-3H-1,2-dithiole-3-thione, CAS 532-11-6), synthesized and used as a drug since 1696, does not act as an unspecific antioxidant molecule (i.e., as a radical scavenger) but unexpectedly decreases mitochondrial reactive oxygen species (ROS/H2O2) production by acting as a specific inhibitor of ROS production at the IQ site of complex I of the mitochondrial respiratory chain. Studies performed on isolated rat heart mitochondria also showed that OP2113 does not affect oxidative phosphorylation driven by complex I or complex II substrates. We assessed the effect of OP2113 on an infarct model of ex vivo rat heart in which mitochondrial ROS production is highly involved and showed that OP2113 protects heart tissue as well as the recovery of heart contractile activity. Conclusion / Significance This work represents the first demonstration of a drug authorized for use in humans that can prevent mitochondria from producing ROS/H2O2. OP2113 therefore appears to be a member of the new class of mitochondrial ROS blockers (S1QELs) and could protect mitochondrial function in numerous diseases in which ROS-induced mitochondrial dysfunction occurs. These applications include but are not limited to aging, Parkinson’s and Alzheimer's diseases, cardiac atrial fibrillation, and ischemia-reperfusion injury.
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Affiliation(s)
- Dominique Detaille
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Philippe Pasdois
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Audrey Sémont
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
| | - Pierre Dos Santos
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
- Centre Hospitalo-Universitaire de Bordeaux (CHU), Pôle Cardio-thoracique, Pessac, France
| | - Philippe Diolez
- IHU Liryc, L’institut de rythmologie et modélisation cardiaque, Fondation Bordeaux Université, Pessac-Bordeaux, France
- Université de Bordeaux, Bordeaux, France
- INSERM, Centre de recherche Cardio-Thoracique de Bordeaux, Bordeaux, France
- * E-mail:
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Oliver DMA, Reddy PH. Small molecules as therapeutic drugs for Alzheimer's disease. Mol Cell Neurosci 2019; 96:47-62. [PMID: 30877034 DOI: 10.1016/j.mcn.2019.03.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Accepted: 03/03/2019] [Indexed: 12/16/2022] Open
Abstract
Mitochondrial dysfunction is a central protagonist of Alzheimer's disease (AD) pathogenesis. Mitochondrial dysfunction stems from various factors including mitochondrial DNA damage and oxidative stress from reactive oxygen species, membrane and ionic gradient destabilization, and interaction with toxic proteins such as amyloid beta (Aβ). Therapeutic drugs such as cholinesterase and glutamate inhibitors have proven to improve synaptic neurotransmitters, but do not address mitochondrial dysfunction. Researchers have demonstrated that oxidative damage may be reduced by increasing endogenous antioxidants, and/or increasing exogenous antioxidants such as vitamin C & E, beta-carotene and glutathione. Nonetheless, as AD pathology intensifies, endogenous antioxidants are overwhelmed, and exogenous antioxidants are unable to reach neuronal mitochondria as they are blocked by the blood brain barrier. Current therapeutic methods however include novel usage of lipophilic phosphonium cation bound to antioxidants, to effect neuronal mitochondria targeted activity. Mitochondria targeted MitoQ, MitoVitE, MitoTempo, MitoPBN and MCAT concentrate within mitochondria where they scavenge free-radicals, and augment mitochondrial dysfunction. Additional molecules include Szeto-Schiller (SS) peptides which target stability of the inner mitochondrial membrane, and DDQ molecule capable of improving bioenergetics and reduce mitochondrial fragmentation. This article discusses advantages and disadvantages of small molecules, their ability to mitigate Aβ induced damage, and ability to ameliorate synaptic dysfunction and cognitive loss.
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Affiliation(s)
- Darryll M A Oliver
- Internal Medicine Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United State
| | - P Hemachandra Reddy
- Internal Medicine Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United State; Garrison Institute on Aging, South West Campus, Texas Tech University Health Sciences Center, 6630 S. Quaker Suite E, Lubbock, TX 79413, United States; Cell Biology & Biochemistry Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United States; Pharmacology & Neuroscience Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United States; Neurology Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United States; Speech, Language and Hearing Sciences Department, Texas Tech University Health Sciences Center, 3601 4th Street, Lubbock, TX 79430, United States; Department of Public Health, Graduate School of Biomedical Sciences, 3601 4th Street, Lubbock, TX 79430, United States.
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Delic V, Noble K, Zivkovic S, Phan TA, Reynes C, Zhang Y, Phillips O, Claybaker C, Ta Y, Dinh VB, Cruz J, Prolla TA, Bradshaw PC. The effects of AICAR and rapamycin on mitochondrial function in immortalized mitochondrial DNA mutator murine embryonic fibroblasts. Biol Open 2018; 7:bio.033852. [PMID: 30177551 PMCID: PMC6262855 DOI: 10.1242/bio.033852] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Mitochondrial DNA mutations accumulate with age and may play a role in stem cell aging as suggested by the premature aging phenotype of mitochondrial DNA polymerase gamma (POLG) exonuclease-deficient mice. Therefore, E1A immortalized murine embryonic fibroblasts (MEFs) from POLG exonuclease-deficient and wild-type (WT) mice were constructed. Surprisingly, when some E1A immortalized MEF lines were cultured in pyruvate-containing media they slowly became addicted to the pyruvate. The POLG exonuclease-deficient MEFs were more sensitive to several mitochondrial inhibitors and showed increased reactive oxygen species (ROS) production under standard conditions. When cultured in pyruvate-containing media, POLG exonuclease-deficient MEFs showed decreased oxygen consumption compared to controls. Increased AMP-activated protein kinase (AMPK) signaling and decreased mammalian target of rapamycin (mTOR) signaling delayed aging and influenced mitochondrial function. Therefore, the effects of 5-aminoimidazole-4-carboxamide ribonucleotide (AICAR), an AMPK activator, or rapamycin, an mTOR inhibitor, on measures of mitochondrial function were determined. Rapamycin treatment transiently increased respiration only in WT MEFs and, under most conditions, increased ATP levels. Short term AICAR treatment transiently increased ROS production and, under most conditions, decreased ATP levels. Chronic AICAR treatment decreased respiration and ROS production in WT MEFs. These results demonstrate the context-dependent effects of AICAR and rapamycin on mitochondrial function. Summary: A novel mitochondrial DNA mutator murine embryonic fibroblast cell line was created and the effects of the anti-aging compounds rapamycin and AICAR on energy metabolism in these cells was determined.
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Affiliation(s)
- Vedad Delic
- Department of Neurology, Center for Neurodegeneration and Experimental Therapeutics, University of Alabama Birmingham School of Medicine, Birmingham, AL 35233, USA
| | - Kenyaria Noble
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Sandra Zivkovic
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Tam-Anh Phan
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Christian Reynes
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Yumeng Zhang
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA.,Department of Internal Medicine, University of South Florida, Tampa, FL 33606, USA
| | - Oluwakemi Phillips
- University of South Florida College of Medicine, Department of Molecular Pharmacology and Physiology, Tampa, FL 33612, USA
| | - Charles Claybaker
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Yen Ta
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Vinh B Dinh
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Josean Cruz
- Department of Cell Biology, Microbiology and Molecular Biology, University of South Florida, Tampa, FL 33620, USA
| | - Tomas A Prolla
- Department of Genetics and Medical Genetics, University of Wisconsin-Madison, Madison, WI 53706, USA
| | - Patrick C Bradshaw
- Department of Biomedical Sciences, James H. Quillen College of Medicine, East Tennessee State University, Johnson City, TN 37614, USA
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Van Giau V, An SSA, Hulme JP. Mitochondrial therapeutic interventions in Alzheimer's disease. J Neurol Sci 2018; 395:62-70. [PMID: 30292965 DOI: 10.1016/j.jns.2018.09.033] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 09/09/2018] [Accepted: 09/26/2018] [Indexed: 01/26/2023]
Abstract
Alzheimer's Disease (AD) is one of the most common age-related neurodegenerative diseases in the developed world. Treatment of AD is particularly challenging as the drug must overcome the blood brain barrier (BBB) before it can reach its target. Mitochondria are recognized as one of the most important targets for neurological drugs as the organelle is known to play a critical role in diverse cellular processes such as energy production and apoptosis regulation. Mitochondrial targeting was originally developed to study mitochondrial dysfunction and the organelles interaction with other sub-cellular organelles. The purpose of this review is to provide an overview of mitochondrial dysfunction and its role in late onset AD pathology. We then highlight recent antioxidant and enzymatic treatments used to alleviate mitochondrial dysfunction. Finally, we describe current applications of targeted mitochondrial delivery in the treatment of AD.
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Affiliation(s)
- Vo Van Giau
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea
| | - Seong Soo A An
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea.
| | - John P Hulme
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Sungnam-daero, Seongnam-si, Gyeonggi-do 461-701, South Korea.
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Rovira-Llopis S, Apostolova N, Bañuls C, Muntané J, Rocha M, Victor VM. Mitochondria, the NLRP3 Inflammasome, and Sirtuins in Type 2 Diabetes: New Therapeutic Targets. Antioxid Redox Signal 2018; 29:749-791. [PMID: 29256638 DOI: 10.1089/ars.2017.7313] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SIGNIFICANCE Type 2 diabetes mellitus and hyperglycemia can lead to the development of comorbidities such as atherosclerosis and microvascular/macrovascular complications. Both type 2 diabetes and its complications are related to mitochondrial dysfunction and oxidative stress. Type 2 diabetes is also a chronic inflammatory condition that leads to inflammasome activation and the release of proinflammatory mediators, including interleukins (ILs) IL-1β and IL-18. Moreover, sirtuins are energetic sensors that respond to metabolic load, which highlights their relevance in metabolic diseases, such as type 2 diabetes. Recent Advances: Over the past decade, great progress has been made in clarifying the signaling events regulated by mitochondria, inflammasomes, and sirtuins. Nod-like receptor family pyrin domain containing 3 (NLRP3) is the best characterized inflammasome, and the generation of oxidant species seems to be critical for its activation. NLRP3 inflammasome activation and altered sirtuin levels have been observed in type 2 diabetes. Critical Issue: Despite increasing evidence of the relationship between the NLRP3 inflammasome, mitochondrial dysfunction, and oxidative stress and of their participation in type 2 diabetes physiopathology, therapeutic strategies to combat type 2 diabetes that target NLRP3 inflammasome and sirtuins are yet to be consolidated. FUTURE DIRECTIONS In this review article, we attempt to provide an overview of the existing literature concerning the crosstalk between mitochondrial impairment and the inflammasome, with particular attention to cellular and mitochondrial redox metabolism and the potential role of the NLRP3 inflammasome and sirtuins in the pathogenesis of type 2 diabetes. In addition, we discuss potential targets for therapeutic intervention based on these molecular interactions. Antioxid. Redox Signal. 29, 749-791.
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Affiliation(s)
- Susana Rovira-Llopis
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Nadezda Apostolova
- 2 Department of Pharmacology, University of Valencia , Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Celia Bañuls
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain
| | - Jordi Muntané
- 3 Department of General Surgery, Hospital University "Virgen del Rocío"/IBiS/CSIC/University of Seville , Seville, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Milagros Rocha
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain
| | - Victor M Victor
- 1 Service of Endocrinology and Nutrition, University Hospital Doctor Peset , Foundation for the Promotion of Health and Biomedical Research in the Valencian Region (FISABIO), Valencia, Spain .,4 CENTRO DE INVESTIGACIÓN BIOMÉDICA EN RED de Enfermedades Hepáticas y Digestivas (CIBERehd) , Madrid, Spain .,5 Department of Physiology, University of Valencia , Valencia, Spain
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Tissier F, Farhat F, Philouze C, Desfontis JC, Didier R, Gilard M, Mallem MY, Mansourati J, Moisan C, Pichavant-Rafini K, Theron M, Amérand A. Long-term atorvastatin treatment decreases heart maximal oxygen consumption and its vulnerability to in vitro oxidative stress in Watanabe heritable hyperlipidemic rabbit. Can J Physiol Pharmacol 2018; 96:1112-1118. [PMID: 30011375 DOI: 10.1139/cjpp-2018-0085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Statins are currently used in prevention of cardiovascular diseases in high-risk populations, and could be considered in primary prevention. However, few studies are available on the long-term effects of low doses of statins, especially on mitochondrial function and reactive oxygen species (ROS) metabolism at cardiac level. This study aimed to determine potential effects of a long-term atorvastatin treatment, at low-dose concentration, on the myocardium mitochondrial respiration. Thirty-four Watanabe rabbits were treated or not with atorvastatin (2.5 mg·kg-1·day-1) from the age of 3 to 12 months. Every 3 months, proton leak, basal (V0), and maximal (Vmax) mitochondrial respiration on cardiac permeabilized fibers were measured. Additionally, the vulnerability to ROS, cardiac enzymatic antioxidant defenses, and oxidative damage (lipoperoxidation) were analyzed. Proton leak increased over the duration of the experiment (up to 60% from Vmax at 12 months). Moreover, the statin treatment induced a decrease of Vmax and a decrease of ROS susceptibility of cardiac mitochondria. However, the lipoperoxidation and the antioxidant defenses were not dependent on the presence of statin treatment, or on its duration. This is the first study showing a protective effect of long-term statins treatment against the ROS susceptibility in the cardiac muscle.
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Affiliation(s)
- Florine Tissier
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
| | - Firas Farhat
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
| | - Clothilde Philouze
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
| | - Jean-Claude Desfontis
- b LUNAM Université, UPSP 5304 de physiopathologie animale et pharmacologie fonctionnelle, Oniris, Nantes, France
| | - Romain Didier
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France.,c Département de cardiologie, CHRU, Brest, France
| | - Martine Gilard
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France.,c Département de cardiologie, CHRU, Brest, France
| | - M Yassine Mallem
- b LUNAM Université, UPSP 5304 de physiopathologie animale et pharmacologie fonctionnelle, Oniris, Nantes, France
| | - Jacques Mansourati
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France.,c Département de cardiologie, CHRU, Brest, France
| | - Christine Moisan
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
| | | | - Michael Theron
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
| | - Aline Amérand
- a EA 4324 ORPHY, Université de Bretagne Occidentale, IBSAM, Brest, France
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Siebert C, dos Santos TM, Bertó CG, Parisi MM, Coelho RP, Manfredini V, Barbé-Tuana FM, Wyse ATS. Vitamin D Supplementation Reverses DNA Damage and Telomeres Shortening Caused by Ovariectomy in Hippocampus of Wistar Rats. Neurotox Res 2018; 34:538-546. [DOI: 10.1007/s12640-018-9909-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 04/25/2018] [Accepted: 04/25/2018] [Indexed: 12/15/2022]
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38
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Synthesis and evaluation of triphenylphosphonium conjugated 18F-labeled silica nanoparticles for PET imaging. J Radioanal Nucl Chem 2018. [DOI: 10.1007/s10967-018-5763-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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de Oliveira MR. Carnosic Acid as a Promising Agent in Protecting Mitochondria of Brain Cells. Mol Neurobiol 2018; 55:6687-6699. [DOI: 10.1007/s12035-017-0842-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 12/14/2017] [Indexed: 12/21/2022]
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Paradies G, Paradies V, Ruggiero FM, Petrosillo G. Mitochondrial bioenergetics decay in aging: beneficial effect of melatonin. Cell Mol Life Sci 2017; 74:3897-3911. [PMID: 28785806 PMCID: PMC11107727 DOI: 10.1007/s00018-017-2619-5] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Accepted: 08/03/2017] [Indexed: 12/18/2022]
Abstract
Aging is a biological process characterized by progressive decline in physiological functions, increased oxidative stress, reduced capacity to respond to stresses, and increased risk of contracting age-associated disorders. Mitochondria are referred to as the powerhouse of the cell through their role in the oxidative phosphorylation to generate ATP. These organelles contribute to the aging process, mainly through impairment of electron transport chain activity, opening of the mitochondrial permeability transition pore and increased oxidative stress. These events lead to damage to proteins, lipids and mitochondrial DNA. Cardiolipin, a phospholipid of the inner mitochondrial membrane, plays a pivotal role in several mitochondrial bioenergetic processes as well as in mitochondrial-dependent steps of apoptosis and in mitochondrial membrane stability and dynamics. Cardiolipin alterations are associated with mitochondrial bienergetics decline in multiple tissues in a variety of physiopathological conditions, as well as in the aging process. Melatonin, the major product of the pineal gland, is considered an effective protector of mitochondrial bioenergetic function. Melatonin preserves mitochondrial function by preventing cardiolipin oxidation and this may explain, at least in part, the protective role of this compound in mitochondrial physiopathology and aging. Here, mechanisms through which melatonin exerts its protective role against mitochondrial dysfunction associated with aging and age-associated disorders are discussed.
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Affiliation(s)
- Giuseppe Paradies
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy.
| | - Valeria Paradies
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Francesca M Ruggiero
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, Bari, Italy
| | - Giuseppe Petrosillo
- Institute of Biomembranes, Bioenergetics and Molecular Biotechnologies, National Research Council, Bari, Italy
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Ratheesh G, Tian L, Venugopal JR, Ezhilarasu H, Sadiq A, Fan TP, Ramakrishna S. Role of medicinal plants in neurodegenerative diseases. ACTA ACUST UNITED AC 2017. [DOI: 10.1007/s40898-017-0004-7] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Yan Y, Cheng L, Chen X, Wang Q, Duan M, Ma J, Zhao L, Jiang X, Ai J. Estrogen deficiency is associated with hippocampal morphological remodeling of early postmenopausal mice. Oncotarget 2017; 8:21892-21902. [PMID: 28423534 PMCID: PMC5400632 DOI: 10.18632/oncotarget.15702] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 01/24/2017] [Indexed: 01/10/2023] Open
Abstract
Estrogen (E2) deficiency is reported to involve in the impairment of cognition in postmenopausal women. However, the morphological basis is still unclear. In the present study, using transmission electron microscopy (TEM), we observed the ultrastructure of hippocampus in female C57BL/6 mice at the age of 18 months (18 M) which is considered as the early stage of postmenopause (n = 8). Compared with control mice aged 6 M (n = 8), we identified that the morphological changes in the hippocampus of these menopausal mice were mitochondrial damage, lipofuscin deposition and microtubule degradation. Notably, after E2 was subcutaneously injected into mice aged 16 M with a dosage of 3.5 μg/kg every three days for two months in the 18 M + E2 group (n = 8), mitochondrial damage and lipofuscin deposition in the DG region of hippocampus were prevented, but the degraded microtubules in the hippocampus of postmenopausal mice were failed to restore. These data suggest that hippocampal ultrastructure remodeling in mice can be initiated at the early stage of postmenopause, E2 supplementation could only have an effect on mitochondrial damage and lipofuscin increase.
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Affiliation(s)
- Yan Yan
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Liang Cheng
- College of Bioinformatics Science and Technology, Harbin Medical University, Heilongjiang Province, Harbin 150081, China
| | - Xin Chen
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Qin Wang
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Mingjing Duan
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Jichao Ma
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Linjing Zhao
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Xuemei Jiang
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
| | - Jing Ai
- Department of Pharmacology, Harbin Medical University, The State-Province Key Laboratories of Biomedicine-Pharmaceutics of China, Heilongjiang Province, Harbin 150081, China
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de Oliveira MR, Nabavi SF, Nabavi SM, Jardim FR. Omega-3 polyunsaturated fatty acids and mitochondria, back to the future. Trends Food Sci Technol 2017. [DOI: 10.1016/j.tifs.2017.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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de Oliveira MR, Brasil FB, Andrade CMB. Naringenin Attenuates H 2O 2-Induced Mitochondrial Dysfunction by an Nrf2-Dependent Mechanism in SH-SY5Y Cells. Neurochem Res 2017; 42:3341-3350. [PMID: 28786049 DOI: 10.1007/s11064-017-2376-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/19/2017] [Accepted: 08/03/2017] [Indexed: 02/07/2023]
Abstract
Mitochondria are the major site of ATP production in mammalian cells. Furthermore, these organelles are a source and a target of reactive oxygen species (ROS), such as radical anion superoxide (O2-·) and hydrogen peroxide (H2O2). The transcription factor nuclear factor erythroid 2-related factor 2 (Nrf2) is the master regulator of the mammalian redox biology and controls the expression of antioxidant and phase II detoxifying enzymes in several cell types. Naringenin (NGN, 5,7-dihydroxy-2-(4-hydroxyphenyl)-2,3-dihydrochromen-4-one), a flavanone, exhibits cytoprotective effects by acting as an antioxidant and anti-inflammatory agent. NGN is a potent activator of Nrf2. Nonetheless, it was not examine yet whether NGN would induce mitochondrial protection in cells under redox stress. Therefore, we investigate here whether Nrf2 would be involved in the mitochondrial protection elicited by NGN in SH-SY5Y cells exposed to H2O2. We observed that a pretreatment with NGN at 80 µM for 2 h reduced the levels of lipid peroxidation, protein carbonylation, and protein nitration in the membranes of mitochondria obtained from H2O2-treated SH-SY5Y cells. Additionally, NGN prevented the H2O2-induced impairment in the function of the enzymes aconitase, α-ketoglutarate dehydrogenase, and succinate dehydrogenase. The activites of the complexes I and V, as well as the production of ATP, were restored by NGN. NGN also suppressed the H2O2-induced mitochondria-related apoptosis. Interestingly, NGN promoted an increase in the levels of both total and mitochondrial glutathione (GSH). Silencing of Nrf2 abolished the protective effects induced by NGN. Overall, NGN induced mitochondrial protection by an Nrf2-dependent mechanism in H2O2-treated SH-SY5Y cells.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Department of Chemistry/ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT,, CEP 78060-900, Brazil.
| | | | - Cláudia Marlise Balbinotti Andrade
- Department of Chemistry/ICET, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Cuiaba, MT,, CEP 78060-900, Brazil
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de Oliveira MR, de Bittencourt Brasil F, Fürstenau CR. Sulforaphane Promotes Mitochondrial Protection in SH-SY5Y Cells Exposed to Hydrogen Peroxide by an Nrf2-Dependent Mechanism. Mol Neurobiol 2017; 55:4777-4787. [PMID: 28730528 DOI: 10.1007/s12035-017-0684-2] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 07/07/2017] [Indexed: 12/20/2022]
Abstract
Sulforaphane (SFN; C6H11NOS2) is an isothiocyanate found in cruciferous vegetables, such as broccoli, kale, and radish. SFN exhibits antioxidant, anti-apoptotic, anti-tumor, and anti-inflammatory activities in different cell types. However, it was not previously demonstrated whether and how this natural compound would exert mitochondrial protection experimentally. Therefore, we investigated here the effects of a pretreatment (for 30 min) with SFN at 5 μM on mitochondria obtained from human neuroblastoma SH-SY5Y cells exposed to hydrogen peroxide (H2O2) at 300 μM for 24 h. We found that SFN prevented loss of viability in H2O2-treated SH-SY5Y cells. Furthermore, SFN decreased lipid peroxidation, protein carbonylation, and protein nitration in mitochondrial membranes of H2O2-exposed cells. Importantly, SFN enhanced the levels of both cellular and mitochondrial glutathione (GSH). SFN also suppressed the H2O2-mediated inhibition of mitochondrial components involved in the maintenance of the bioenergetics state, such as aconitase, α-ketoglutarate dehydrogenase, and succinate dehydrogenase, as well as complexes I and V. Consequently, SFN prevented the decline induced by H2O2 on the levels of ATP in SH-SY5Y cells. Silencing of the nuclear factor erythroid 2-related factor 2 (Nrf2) transcription factor by using small interfering RNA (siRNA) abolished the mitochondrial and cellular protection elicited by SFN. Therefore, SFN abrogated the H2O2-induced mitochondrial impairment by an Nrf2-dependent manner.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Departamento de Química/ICET, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, CEP 78060-900, Cuiaba, MT, Brazil.
| | | | - Cristina Ribas Fürstenau
- Instituto de Genética e Bioquímica (INGEB), Universidade Federal de Uberlândia (UFU), Patos de Minas, MG, Brazil
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Wang H, Xu W. Mito-methyl coumarin, a novel mitochondria-targeted drug with great antitumor potential was synthesized. Biochem Biophys Res Commun 2017; 489:1-7. [PMID: 28546001 DOI: 10.1016/j.bbrc.2017.05.116] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2017] [Accepted: 05/21/2017] [Indexed: 11/15/2022]
Abstract
Due to higher transmembrane potential of tumor cells, enhanced accumulation of cationic drugs in tumor mitochondria has been attributed to a higher (more negative inside) mitochondrial transmembrane potential compared with normal cells, emerging researchers are focus on developing mitochondria-targeted antitumor drugs. Coumarins showed great potential on antitumor, but mitochondria-targeted coumarin derivatives have not been reported. In the present study, we synthesized mitochondria-targeted-methyl coumarin (mito-methyl coumarin) through coupling 6-methyl coumarin to TPP. We confirmed that mito-methyl coumarin inhibited HeLa cells proliferation selectively, induced ROS generation, reduced mitochondrial membrane potential, promoted mitochondria Ca2+ accumulation, decreased mitochondria mass and induced HeLa cells apoptosis, but methyl coumarin did not. These results demonstrate that we succeed in synthesizing a novel mitochondria-targeted drug, mito-methyl coumarin, which is effective in inhibiting HeLa cells proliferation and inducing HeLa cells apoptosis through promoting ROS generation and mitochondria Ca2+ accumulation.
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Affiliation(s)
- Huanan Wang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College, Chinese Academy of Medical Science, Tianjin 300192, China
| | - Wenqing Xu
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Peking Union Medical College, Chinese Academy of Medical Science, Tianjin 300192, China.
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Tsybul'ko E, Krementsova A, Symonenko A, Rybina O, Roshina N, Pasyukova E. The Mitochondria-Targeted Plastoquinone-Derivative SkQ1 Promotes Health and Increases Drosophila melanogaster Longevity in Various Environments. J Gerontol A Biol Sci Med Sci 2017; 72:499-508. [PMID: 27166099 DOI: 10.1093/gerona/glw084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Accepted: 04/19/2016] [Indexed: 01/03/2023] Open
Abstract
Mitochondria play an important role in aging. Strongly reduced function of the mitochondria shortens life span, whereas moderate reduction prolongs life span, with reactive oxygen species production being the major factor contributing to life span changes. Previously, picomolar concentrations of the mitochondria-targeted antioxidant SkQ1 were shown to increase the life span of Drosophila by approximately 10%. In this article, we demonstrate that SkQ1 elevates locomotion, which is often considered a marker of health and age. We also show that mating frequency and fecundity may be slightly increased in SkQ1-treated flies. These results indicate that SkQ1 not only prolongs life span but also improves health and vigor. An important property of any potential therapeutic is the stability of its effects in an uncontrolled and changing environment as well as on individuals with various genetic constitutions. In this article, we present data on SkQ1 effects on Drosophila longevity in extreme environments (low temperatures and starvation) and on individuals with severe genetic alterations in the mitochondrial systems responsible for production and detoxification of reactive oxygen species. We hypothesize that in vivo SkQ1 is capable of alleviating the probable negative effects of increased mitochondrial reactive oxygen species production on longevity but is not effective when reactive oxygen species production is already reduced by other means.
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Affiliation(s)
| | - Anna Krementsova
- Institute of Molecular Genetics of RAS, Moscow, Russia.,Emmanuel Institute of Biochemical Physics of RAS, Moscow, Russia
| | | | - Olga Rybina
- Institute of Molecular Genetics of RAS, Moscow, Russia.,Federal State-Financed Educational Institution of Higher Professional Education, Moscow State Pedagogical University, Institute of Biology and Chemistry, Russia
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Resveratrol and Brain Mitochondria: a Review. Mol Neurobiol 2017; 55:2085-2101. [DOI: 10.1007/s12035-017-0448-z] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Accepted: 02/07/2017] [Indexed: 12/24/2022]
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de Oliveira MR, da Costa Ferreira G, Brasil FB, Peres A. Pinocembrin Suppresses H2O2-Induced Mitochondrial Dysfunction by a Mechanism Dependent on the Nrf2/HO-1 Axis in SH-SY5Y Cells. Mol Neurobiol 2017; 55:989-1003. [DOI: 10.1007/s12035-016-0380-7] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 12/30/2016] [Indexed: 01/23/2023]
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de Oliveira MR, da Costa Ferreira G, Peres A, Bosco SMD. Carnosic Acid Suppresses the H 2O 2-Induced Mitochondria-Related Bioenergetics Disturbances and Redox Impairment in SH-SY5Y Cells: Role for Nrf2. Mol Neurobiol 2017; 55:968-979. [PMID: 28084591 DOI: 10.1007/s12035-016-0372-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Accepted: 12/28/2016] [Indexed: 12/20/2022]
Abstract
The phenolic diterpene carnosic acid (CA, C20H28O4) exerts antioxidant, anti-inflammatory, anti-apoptotic, and anti-cancer effects in mammalian cells. CA activates the nuclear factor erythroid 2-related factor 2 (Nrf2), among other signaling pathways, and restores cell viability in several in vitro and in vivo experimental models. We have previously reported that CA affords mitochondrial protection against various chemical challenges. However, it was not clear yet whether CA would prevent chemically induced impairment of the tricarboxylic acid cycle (TCA) function in mammalian cells. In the present work, we found that a pretreatment of human neuroblastoma SH-SY5Y cells with CA at 1 μM for 12 h prevented the hydrogen peroxide (H2O2)-induced impairment of the TCA enzymes (aconitase, α-ketoglutarate dehydrogenase (α-KGDH), succinate dehydrogenase (SDH)) and abolished the inhibition of the complexes I and V and restored the levels of ATP by a mechanism associated with Nrf2. CA also exhibited antioxidant abilities by enhancing the levels of reduced glutathione (GSH) and decreasing the content oxidative stress markers (cellular 8-oxo-2'-deoxyguanosine (8-oxo-dG), and mitochondrial malondialdehyde (MDA), protein carbonyl, and 3-nitrotyrosine). Silencing of Nrf2 by small interfering RNA (siRNA) abrogated the protective effects elicited by CA in mitochondria of SH-SY5Y cells. Therefore, CA prevented the H2O2-triggered mitochondrial impairment by an Nrf2-dependent mechanism. The specific role of Nrf2 in ameliorating the function of TCA enzymes function needs further research.
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Affiliation(s)
- Marcos Roberto de Oliveira
- Departamento de Química/ICET, Universidade Federal de Mato Grosso (UFMT), Av. Fernando Corrêa da Costa , 2367 , Cuiaba, MT, 78060-900, Brazil.
| | - Gustavo da Costa Ferreira
- Instituto de Bioquímica Médica Leopoldo de Meis, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - Alessandra Peres
- Departamento de Ciências Básicas da Saúde, Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, RS, Brazil
- Centro de Pesquisa da Pós-Graduação, Centro Universitário Metodista IPA, Porto Alegre, RS, Brazil
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