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Vijayakumar A, Wang M, Kailasam S. The Senescent Heart-"Age Doth Wither Its Infinite Variety". Int J Mol Sci 2024; 25:3581. [PMID: 38612393 PMCID: PMC11011282 DOI: 10.3390/ijms25073581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 03/10/2024] [Accepted: 03/19/2024] [Indexed: 04/14/2024] Open
Abstract
Cardiovascular diseases are a leading cause of morbidity and mortality world-wide. While many factors like smoking, hypertension, diabetes, dyslipidaemia, a sedentary lifestyle, and genetic factors can predispose to cardiovascular diseases, the natural process of aging is by itself a major determinant of the risk. Cardiac aging is marked by a conglomerate of cellular and molecular changes, exacerbated by age-driven decline in cardiac regeneration capacity. Although the phenotypes of cardiac aging are well characterised, the underlying molecular mechanisms are far less explored. Recent advances unequivocally link cardiovascular aging to the dysregulation of critical signalling pathways in cardiac fibroblasts, which compromises the critical role of these cells in maintaining the structural and functional integrity of the myocardium. Clearly, the identification of cardiac fibroblast-specific factors and mechanisms that regulate cardiac fibroblast function in the senescent myocardium is of immense importance. In this regard, recent studies show that Discoidin domain receptor 2 (DDR2), a collagen-activated receptor tyrosine kinase predominantly located in cardiac fibroblasts, has an obligate role in cardiac fibroblast function and cardiovascular fibrosis. Incisive studies on the molecular basis of cardiovascular aging and dysregulated fibroblast function in the senescent heart would pave the way for effective strategies to mitigate cardiovascular diseases in a rapidly growing elderly population.
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Affiliation(s)
- Anupama Vijayakumar
- Cardiovascular Genetics Laboratory, Department of Biotechnology, Bhupat and Jyothi Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, India;
| | - Mingyi Wang
- Laboratory of Cardiovascular Science, National Institute on Aging/National Institutes of Health, Baltimore, MD 21224, USA;
| | - Shivakumar Kailasam
- Department of Biotechnology, University of Kerala, Kariavattom, Trivandrum 695581, India
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2
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Martín-Vírgala J, Martín-Carro B, Fernández-Villabrille S, Ruiz-Torres MP, Gómez-Alonso C, Rodríguez-García M, Fernández-Martín JL, Alonso-Montes C, Panizo S, Cannata-Andía JB, Naves-Díaz M, Carrillo-López N. Soluble Klotho, a Potential Biomarker of Chronic Kidney Disease-Mineral Bone Disorders Involved in Healthy Ageing: Lights and Shadows. Int J Mol Sci 2024; 25:1843. [PMID: 38339121 PMCID: PMC10855561 DOI: 10.3390/ijms25031843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/23/2024] [Accepted: 01/31/2024] [Indexed: 02/12/2024] Open
Abstract
Shortly after the discovery of Klotho, interest grew in its potential role in chronic kidney disease (CKD). There are three isoforms of the Klotho protein: αKlotho, βKlotho and γKlotho. This review will focus on αKlotho due to its relevance as a biomarker in CKD. αKlotho is synthesized mainly in the kidneys, but it can be released into the bloodstream and urine as soluble Klotho (sKlotho), which undertakes systemic actions, independently or in combination with FGF23. It is usually accepted that sKlotho levels are reduced early in CKD and that lower levels of sKlotho might be associated with the main chronic kidney disease-mineral bone disorders (CKD-MBDs): cardiovascular and bone disease. However, as results are inconsistent, the applicability of sKlotho as a CKD-MBD biomarker is still a matter of controversy. Much of the inconsistency can be explained due to low sample numbers, the low quality of clinical studies, the lack of standardized assays to assess sKlotho and a lack of consensus on sample processing, especially in urine. In recent decades, because of our longer life expectancies, the prevalence of accelerated-ageing diseases, such as CKD, has increased. Exercise, social interaction and caloric restriction are considered key factors for healthy ageing. While exercise and social interaction seem to be related to higher serum sKlotho levels, it is not clear whether serum sKlotho might be influenced by caloric restriction. This review focuses on the possible role of sKlotho as a biomarker in CKD-MBD, highlighting the difference between solid knowledge and areas requiring further research, including the role of sKlotho in healthy ageing.
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Affiliation(s)
- Julia Martín-Vírgala
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
| | - Beatriz Martín-Carro
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
| | - Sara Fernández-Villabrille
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
| | - María Piedad Ruiz-Torres
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
- Área 5—Fisiología y Fisiopatología Renal y Vascular del Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Physiology Unit, Department of Systems Biology, Facultad de Medicina y Ciencias de la Salud, Universidad de Alcalá, 28871 Alcalá de Henares, Spain
| | - Carlos Gómez-Alonso
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Minerva Rodríguez-García
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
- Nephrology Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - José Luis Fernández-Martín
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Cristina Alonso-Montes
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
| | - Sara Panizo
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
| | - Jorge B. Cannata-Andía
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
- Department of Medicine, Universidad de Oviedo, 33011 Oviedo, Spain
| | - Manuel Naves-Díaz
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
- Bone and Mineral Research Unit, Hospital Universitario Central de Asturias, 33011 Oviedo, Spain
| | - Natalia Carrillo-López
- Metabolismo Óseo, Vascular y Enfermedades Inflamatorias Crónicas, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS2040, Kidney Disease), 28040 Madrid, Spain;
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Tanriover C, Copur S, Mutlu A, Peltek IB, Galassi A, Ciceri P, Cozzolino M, Kanbay M. Early aging and premature vascular aging in chronic kidney disease. Clin Kidney J 2023; 16:1751-1765. [PMID: 37915901 PMCID: PMC10616490 DOI: 10.1093/ckj/sfad076] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Indexed: 11/03/2023] Open
Abstract
Aging is the progressive decline of body functions and a number of chronic conditions can lead to premature aging characterized by frailty, a diseased vasculature, osteoporosis, and muscle wasting. One of the major conditions associated with premature and accelerated aging is chronic kidney disease (CKD), which can also result in early vascular aging and the stiffening of the arteries. Premature vascular aging in CKD patients has been considered as a marker of prognosis of mortality and cardiovascular morbidity and therefore requires further attention. Oxidative stress, inflammation, advanced glycation end products, fructose, and an aberrant gut microbiota can contribute to the development of early aging in CKD patients. There are several key molecular pathways and molecules which play a role in aging and vascular aging including nuclear factor erythroid 2-related factor 2 (Nrf-2), AMP-activated protein kinase (AMPK), sirtuin 1 (SIRT1), and klotho. Potential therapeutic strategies can target these pathways. Future studies are needed to better understand the importance of premature aging and early vascular aging and to develop therapeutic alternatives for these conditions.
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Affiliation(s)
- Cem Tanriover
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Sidar Copur
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | - Ali Mutlu
- Department of Medicine, Koc University School of Medicine, Istanbul, Turkey
| | | | - Andrea Galassi
- Department of Health Sciences, Renal Division, University of Milan, Milan, Italy
| | - Paola Ciceri
- Department of Health Sciences, Renal Division, University of Milan, Milan, Italy
| | - Mario Cozzolino
- Department of Health Sciences, Renal Division, University of Milan, Milan, Italy
| | - Mehmet Kanbay
- Department of Medicine, Division of Nephrology, Koc University School of Medicine, Istanbul, Turkey
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4
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Pańczyszyn-Trzewik P, Czechowska E, Stachowicz K, Sowa-Kućma M. The Importance of α-Klotho in Depression and Cognitive Impairment and Its Connection to Glutamate Neurotransmission-An Up-to-Date Review. Int J Mol Sci 2023; 24:15268. [PMID: 37894946 PMCID: PMC10607524 DOI: 10.3390/ijms242015268] [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: 08/31/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023] Open
Abstract
Depression is a serious neuropsychiatric disease affecting an increasing number of people worldwide. Cognitive deficits (including inattention, poor memory, and decision-making difficulties) are common in the clinical picture of depression. Cognitive impairment has been hypothesized to be one of the most important components of major depressive disorder (MDD; referred to as clinical depression), although typical cognitive symptoms are less frequent in people with depression than in people with schizophrenia or bipolar disorder (BD; sometimes referred to as manic-depressive disorder). The importance of α-Klotho in the aging process has been well-documented. Growing evidence points to the role of α-Klotho in regulating other biological functions, including responses to oxidative stress and the modulation of synaptic plasticity. It has been proven that a Klotho deficit may contribute to the development of various nervous system pathologies, such as behavioral disorders or neurodegeneration. Given the growing evidence of the role of α-Klotho in depression and cognitive impairment, it is assumed that this protein may be a molecular link between them. Here, we provide a research review of the role of α-Klotho in depression and cognitive impairment. Furthermore, we propose potential mechanisms (related to oxidative stress and glutamatergic transmission) that may be important in α-Klotho-mediated regulation of mental and cognitive function.
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Affiliation(s)
- Patrycja Pańczyszyn-Trzewik
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland; (P.P.-T.); (E.C.)
| | - Ewelina Czechowska
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland; (P.P.-T.); (E.C.)
| | - Katarzyna Stachowicz
- Department of Neurobiology, Maj Institute of Pharmacology, Polish Academy of Sciences, Smetna 12, 31-343 Krakow, Poland;
| | - Magdalena Sowa-Kućma
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, Kopisto 2a, 35-959 Rzeszow, Poland; (P.P.-T.); (E.C.)
- Centre for Innovative Research in Medical and Natural Sciences, Medical College of Rzeszow University, Warzywna Street 1A, 35-595 Rzeszow, Poland
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5
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Sołek P, Czechowska E, Sowa-Kućma M, Stachowicz K, Kaczka P, Tabęcka-Łonczyńska A. Elucidating the molecular mechanisms underlying the induction of autophagy by antidepressant-like substances in C57BL/6J mouse testis model upon LPS challenge. Cell Commun Signal 2023; 21:251. [PMID: 37735683 PMCID: PMC10512556 DOI: 10.1186/s12964-023-01270-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Accepted: 08/13/2023] [Indexed: 09/23/2023] Open
Abstract
The treatment of depression with pharmaceuticals is associated with many adverse side effects, including male fertility problems. The precise mechanisms by which these agents affect testicular cells remain largely unknown, but they are believed to induce cellular stress, which is sensed by the endoplasmic reticulum (ER) and the Golgi apparatus. These organelles are responsible for maintaining cellular homeostasis and regulating signal pathways that lead to autophagy or apoptosis. Therefore, in this study, we aimed to investigate the autophagy, ER, and Golgi stress-related pathways in mouse testis following treatment with antidepressant-like substances (ALS) and ALS combined with lipopolysaccharide (LPS). We found that most ALS and activated proteins are associated with the induction of apoptosis. However, when imipramine (IMI) was combined with NS-398 (a cyclooxygenase-2 inhibitor) after LPS administration, we observed a marked increase in the BECLIN1, Bcl-2, ATG16L, and LC3 expression, which are marker proteins of autophagosome formation. The expression of the BECN1 and ATG16L genes was also high compared to the control, indicating the induction of autophagy processes that may potentially protect mouse testicular cells from death and regulate metabolism in the testis. Our findings may provide a better understanding of the stress-related effects of specific ALS on the testis. Video Abstract.
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Affiliation(s)
- Przemysław Sołek
- Department of Biopharmacy, Medical University of Lublin, 4a Chodźki, 20-093, Lublin, Poland
| | - Ewelina Czechowska
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, 2a Kopisto, 35-959, Rzeszow, Poland
| | - Magdalena Sowa-Kućma
- Department of Human Physiology, Institute of Medical Sciences, Medical College of Rzeszow University, 2a Kopisto, 35-959, Rzeszow, Poland
| | - Katarzyna Stachowicz
- Maj Institute of Pharmacology Polish Academy of Sciences, 12 Smetna, 31-343, Krakow, Poland
| | - Piotr Kaczka
- PRO-NOO-BIOTICS Sp. z o.o., 39 Warszawska, 35-205, Rzeszow, Poland
| | - Anna Tabęcka-Łonczyńska
- Department of Biotechnology and Cell Biology, Medical College, University of Information Technology and Management in Rzeszow, 2 Sucharskiego, 35-225, Rzeszow, Poland.
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6
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Zhang C, Cao J, Xu M, Wu D, Li W, Chang Y. The role of neutrophils in chorioamnionitis. Front Immunol 2023; 14:1198831. [PMID: 37475854 PMCID: PMC10354368 DOI: 10.3389/fimmu.2023.1198831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Accepted: 06/16/2023] [Indexed: 07/22/2023] Open
Abstract
Chorioamnionitis, commonly referred to as intrauterine infection or inflammation, is pathologically defined by neutrophil infiltration and inflammation at the maternal-fetal interface. Chorioamnionitis is the common complication during late pregnancy, which lead to a series of serious consequences, such as preterm labor, preterm premature rupture of the fetal membranes, and fetal inflammatory response syndrome. During infection, a large number of neutrophils migrate to the chorio-decidua in response to chemokines. Although neutrophils, a crucial part of innate immune cells, have strong anti-inflammatory properties, over-activating them can harm the body while also eliminating pathogens. This review concentrated on the latest studies on chorioamnionitis-related consequences as well as the function and malfunction of neutrophils. The release of neutrophil extracellular traps, production of reactive oxygen species, and degranulation from neutrophils during intrauterine infection, as well as their pathological roles in complications related to chorioamnionitis, were discussed in detail, offering fresh perspectives on the treatment of chorioamnionitis.
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Affiliation(s)
| | | | | | | | | | - Ying Chang
- Tianjin Key Laboratory of Human Development and Reproductive Regulation, Tianjin central hospital of Gynecology Obstetrics, Tianjin, China
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Li M, Ma Y, Cheng W, Zhang L, Zhou C, Zhang W, Zhang W. Association between perfluoroalkyl and polyfluoroalkyl internal exposure and serum α-Klotho levels in middle-old aged participants. Front Public Health 2023; 11:1136454. [PMID: 37228732 PMCID: PMC10204767 DOI: 10.3389/fpubh.2023.1136454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/11/2023] [Indexed: 05/27/2023] Open
Abstract
Purpose Exposure to perfluoroalkyl and polyfluoroalkyl substances causes oxidative stress, which is strongly associated with adverse health effects. Klotho protein plays an anti-aging role via antioxidation activity. Methods We investigated the levels of serum α-Klotho and PFAS exposure in adults who participated in the National Health and Nutrition Examination Survey from 2013 to 2016. A nationally representative subsample of 1,499 adults aged 40-79 years was analyzed for the associations of serum α-Klotho levels with serum PFAS exposures by correlation analysis and multiple general linear models. Of note, the potential confounding factors including age and gender were adjusted. Quantile-based g-computation models were used to assess the effects of mixed PFAS exposure on serum α-Klotho levels. Results The weighted geometric mean of serum α-Klotho was 791.38 pg/mL for the subjects during 2013-2016. After adjusting for potential confounders, serum Klotho levels showed a statistically significant downward trend with increasing quartiles of PFOA and PFNA. Multivariate adjusted general linear regression analysis showed that increased exposure to PFNA was substantially associated with lower serum levels of α-Klotho, and each 1-unit increase in PFNA concentration was accompanied by a 20.23 pg/mL decrease in α-Klotho level; while no significant association was observed between other PFAS exposures and serum α-Klotho levels. It was negatively correlated between α-Klotho and Q4 for PFNA relative to the lowest quartile (Q1) of exposure (P = 0.025). It was found that the strongest negative correlation between PFNA exposure and serum α-Klotho levels was in the middle-aged (40-59 years) female participants. Furthermore, the mixture of the four PFAS substances showed an overall inverse association with serum α-Klotho concentrations, with PFNA being the major contributor. Conclusions Taken together, in a representative sample of the U.S. middle-aged and elderly populations, serum concentrations of PFAS, especially PFNA, have been negatively associated with serum levels of α-Klotho, which is strongly associated with cognition and aging. It was important to note that the majority of associations were limited to middle-aged women. It will be meaningful to clarify the causal relationship and the pathogenic mechanisms of PFAS exposure and α-Klotho levels, which is helpful to aging and aging-related diseases.
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Affiliation(s)
- Min Li
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China
- Guangdong Provincial Engineering and Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, China
| | - Yuanlin Ma
- Reproductive Medicine Center, Guangdong Provincial Key Laboratory of Reproductive Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wenli Cheng
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Luyun Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Cheng Zhou
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China
| | - Wenji Zhang
- Guangdong Provincial Engineering and Technology Research Center for Tobacco Breeding and Comprehensive Utilization, Key Laboratory of Crop Genetic Improvement of Guangdong Province, Crops Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, Guangdong, China
| | - Wenjuan Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, China
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Klotho, Oxidative Stress, and Mitochondrial Damage in Kidney Disease. Antioxidants (Basel) 2023; 12:antiox12020239. [PMID: 36829798 PMCID: PMC9952437 DOI: 10.3390/antiox12020239] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/26/2023] Open
Abstract
Reducing oxidative stress stands at the center of a prevention and control strategy for mitigating cellular senescence and aging. Kidney disease is characterized by a premature aging syndrome, and to find a modulator targeting against oxidative stress, mitochondrial dysfunction, and cellular senescence in kidney cells could be of great significance to prevent and control the progression of this disease. This review focuses on the pathogenic mechanisms related to the appearance of oxidative stress damage and mitochondrial dysfunction in kidney disease. In this scenario, the anti-aging Klotho protein plays a crucial role by modulating signaling pathways involving the manganese-containing superoxide dismutase (Mn-SOD) and the transcription factors FoxO and Nrf2, known antioxidant systems, and other known mitochondrial function regulators, such as mitochondrial uncoupling protein 1 (UCP1), B-cell lymphoma-2 (BCL-2), Wnt/β-catenin, peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1 alpha), transcription factor EB, (TFEB), and peroxisome proliferator-activated receptor gamma (PPAR-gamma). Therefore, Klotho is postulated as a very promising new target for future therapeutic strategies against oxidative stress, mitochondria abnormalities, and cellular senescence in kidney disease patients.
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9
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Sun J, Kim J, Jeong H, Kwon D, Moon Y. Xenobiotic-induced ribosomal stress compromises dysbiotic gut barrier aging: A one health perspective. Redox Biol 2022; 59:102565. [PMID: 36470131 PMCID: PMC9720106 DOI: 10.1016/j.redox.2022.102565] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/28/2022] [Accepted: 11/28/2022] [Indexed: 12/05/2022] Open
Abstract
Upon exposure to internal or environmental insults, ribosomes stand sentinel. In particular, stress-driven dysregulation of ribosomal homeostasis is a potent trigger of adverse outcomes in mammalians. The present study assessed whether the ribosomal insult affects the aging process via the regulation of sentinel organs such as the gut. Analyses of the human aging dataset demonstrated that elevated features of ribosomal stress are inversely linked to barrier maintenance biomarkers during the aging process. Ribosome-insulted worms displayed reduced lifespan, which was associated with the disruption of gut barriers. Mechanistically, ribosomal stress-activated Sek-1/p38 signaling, a central platform of ribosomal stress responses, counteracted the gut barrier deterioration through the maintenance of the gut barrier, which was consistent with the results in a murine insult model. However, since the gut-protective p38 signaling was attenuated with aging, the ribosomal stress-induced distress was exacerbated in the gut epithelia and mucosa of the aged animals, subsequently leading to increased bacterial exposure. Moreover, the bacterial community-based evaluation predicted concomitant increases in the abundance of mucosal sugar utilizers and mucin metabolic enzymes in response to ribosomal insult in the aged host. All of the present evidence on ribosomal insulting against the gut barrier integrity from worms to mammals provides new insights into organelle-associated translational modulation of biological longevity in a one health perspective.
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Affiliation(s)
- Junjie Sun
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Juil Kim
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Hoyoung Jeong
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Dasom Kwon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea
| | - Yuseok Moon
- Laboratory of Mucosal Exposome and Biomodulation, Department of Integrative Biomedical Sciences and Biomedical Research Institute, Pusan National University, Yangsan, 50612, South Korea; Graduate Program of Genomic Data Sciences, Pusan National University, Yangsan, 50612, South Korea.
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10
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Radnaa E, Richardson L, Goldman B, Burks J, Baljinnyam T, Vora N, Zhang HJ, Bonney E, Han A, Menon R. Stress signaler p38 mitogen-activated kinase activation: a cause for concern? Clin Sci (Lond) 2022; 136:1591-1614. [PMID: 36250628 PMCID: PMC9664350 DOI: 10.1042/cs20220491] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 10/14/2022] [Accepted: 10/17/2022] [Indexed: 11/17/2022]
Abstract
Oxidative stress (OS) induced activation of p38 mitogen-activated kinase (MAPK) and cell fate from p38 signaling was tested using the human fetal membrane's amnion epithelial cells (AEC). We created p38 KO AEC using the CRISPR/Cas9 approach and tested cell fate in response to OS on an AEC-free fetal membrane extracellular matrix (ECM). Screening using image CyTOF indicated OS causing epithelial-mesenchymal transition (EMT). Further testing revealed p38 deficiency prevented AEC senescence, EMT, cell migration, and inflammation. To functionally validate in vitro findings, fetal membrane-specific conditional KO (cKO) mice were developed by injecting Cre-recombinase encoded exosomes intra-amniotically into p38αloxP/loxP mice. Amnion membranes from p38 cKO mice had reduced senescence, EMT, and increased anti-inflammatory IL-10 compared with WT animals. Our study suggested that overwhelming activation of p38 in response to OS inducing risk exposures can have an adverse impact on cells, cause cell invasion, inflammation, and ECM degradation detrimental to tissue homeostasis.
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Affiliation(s)
- Enkhtuya Radnaa
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A
| | - Lauren Richardson
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A
| | - Brett Goldman
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A
| | - Jared K. Burks
- Flow Cytometry and Cellular Imaging Core Facility, Department of Leukemia, M.D. Anderson Cancer Center, Texas, U.S.A. 77030
| | - Tuvshintugs Baljinnyam
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A. 77555
| | - Natasha Vora
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A
| | - Hui-juan Zhang
- Department of Pathology, The International Peace Maternity and Child Health Hospital, University School of Medicine, Shanghai, China. 200030
| | - Elizabeth A. Bonney
- Department of Obstetrics and Gynecology, The University of Vermont, Burlington, VT, U.S.A. 05405ghout all figures, the following notations were
| | - Arum Han
- Department of Electrical and Computer Engineering, Department of Biomedical Engineering, Texas A&M University, College Station, Texas, U.S.A. 77843
| | - Ramkumar Menon
- Division of Basic and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, Texas, U.S.A
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11
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Klotho Levels and Their Relationship with Inflammation and Survival among Alcoholic Patients. Biomolecules 2022; 12:biom12081151. [PMID: 36009045 PMCID: PMC9405938 DOI: 10.3390/biom12081151] [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: 07/05/2022] [Revised: 08/08/2022] [Accepted: 08/18/2022] [Indexed: 11/25/2022] Open
Abstract
α-Klotho (Klotho) is an antiaging hormone with anti-inflammatory and antioxidative properties. Some studies suggest that Klotho increases in response to enhanced oxidative damage and inflammation. Alcoholism is a proinflammatory condition. The aim of this study was to analyze the relationship between Klotho and the serum levels of the inflammatory markers in alcoholic liver disease and to assess its prognostic value. We included 184 alcoholics and 35 age- and sex-matched controls. We determined the serum levels of Klotho, the tumor necrosis factor (TNF)-α, interleukin (IL)-6, IL-8, and malondialdehyde (MDA), and routine laboratory variables. Patients were followed-up with during 16 ± 18 months; 67 patients died. Klotho levels were higher among cirrhotics (with KW = 37.00 and p < 0.001) and were related to the Child−Pugh score (with KW = 15.96 and p < 0.001) and to the TNF-α (ρ = 0.28; p < 0.001) and MDA (ρ = 0.21; p = 0.006). The child’s groups were associated with mortality, both in the univariate (with the log-rank = 13.56, p = 0.001, Breslow = 12.33, and p = 0.002) and multivariate (with β = 0.43, p = 0.02, and OR = 1.53 (1.07−2.15)) analyses, also introducing Klotho and the TNF-α as dichotomic variables. However, the independent prognostic value of the Child’s groups was displaced by Klotho when only cirrhotics were considered; Klotho, over the median (574.4 pg/mL), was associated with higher mortality (with p = 0.04 and OR = 2.68 (1.06−6.84)). We conclude that Klotho is increased in liver cirrhosis. It is directly related to TNF-α, MDA, and to mortality in cirrhotics.
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12
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Zhang Y, Qiao X, Liu L, Han W, Liu Q, Wang Y, Xie T, Tang Y, Wang T, Meng J, Ye A, He S, Chen R, Chen C. Long noncoding RNA MAGI2-AS3 regulates the H2O2 level and cell senescence via HSPA8. Redox Biol 2022; 54:102383. [PMID: 35797800 PMCID: PMC9287730 DOI: 10.1016/j.redox.2022.102383] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Revised: 06/16/2022] [Accepted: 06/21/2022] [Indexed: 11/16/2022] Open
Affiliation(s)
- Yingmin Zhang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xinhua Qiao
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Lihui Liu
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Wensheng Han
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qinghua Liu
- Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Yuanyuan Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Ting Xie
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Yiheng Tang
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Tiepeng Wang
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Jiao Meng
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Aojun Ye
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Shunmin He
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Runsheng Chen
- University of Chinese Academy of Sciences, Beijing, 100049, China; Key Laboratory of RNA Biology, Center for Big Data Research in Health, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China
| | - Chang Chen
- National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, 100101, China; University of Chinese Academy of Sciences, Beijing, 100049, China.
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13
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Zhao M, Murakami S, Matsumaru D, Kawauchi T, Nabeshima YI, Motohashi H. NRF2 Pathway Activation Attenuates Aging-Related Renal Phenotypes due to α-Klotho Deficiency. J Biochem 2022; 171:579-589. [DOI: 10.1093/jb/mvac014] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Accepted: 02/03/2022] [Indexed: 11/13/2022] Open
Abstract
Summary
Oxidative stress is one of the major causes of the age-related functional decline in cells and tissues. The KEAP1-NRF2 system plays a central role in the regulation of redox balance, and NRF2 activation exerts antiaging effects by controlling oxidative stress in aged tissues. α-Klotho was identified as an aging suppressor protein based on the premature aging phenotypes of its mutant mice, and its expression is known to gradually decrease during aging. Because α-Klotho has been shown to possess antioxidant function, aging-related phenotypes of α-Klotho mutant mice seem to be attributable to increased oxidative stress at least in part. To examine whether NRF2 activation antagonizes aging-related phenotypes caused by α-Klotho deficiency, we crossed α-Klotho-deficient (Kl–/–) mice with a Keap1-knockdown background, in which the NRF2 pathway is constitutively activated in the whole body. NRF2 pathway activation in Kl–/– mice extended the lifespan and dramatically improved aging-related renal phenotypes. With elevated expression of antioxidant genes accompanied by an oxidative stress decrease, the antioxidant effects of NRF2 seem to make a major contribution to the attenuation of aging-related renal phenotypes of Kl–/– mice. Thus, NRF2 is expected to exert an antiaging function by partly compensating for the functional decline of α-Klotho during physiological aging.
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Affiliation(s)
- Mingyue Zhao
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Shohei Murakami
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Daisuke Matsumaru
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
| | - Takeshi Kawauchi
- Laboratory of Molecular Life Science, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe 650-0047, Japan
| | - Yo-ichi Nabeshima
- Laboratory of Molecular Life Science, Institute of Biomedical Research and Innovation, Foundation for Biomedical Research and Innovation at Kobe, Kobe 650-0047, Japan
| | - Hozumi Motohashi
- Department of Gene Expression Regulation, Institute of Development, Aging and Cancer, Tohoku University, Sendai, 980-8575, Japan
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14
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Pande CK, Smith MB, Soranno DE, Gist KM, Fuhrman DY, Dolan K, Conroy AL, Akcan-Arikan A. The Neglected Price of Pediatric Acute Kidney Injury: Non-renal Implications. Front Pediatr 2022; 10:893993. [PMID: 35844733 PMCID: PMC9279899 DOI: 10.3389/fped.2022.893993] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/23/2022] [Indexed: 01/03/2023] Open
Abstract
Preclinical models and emerging translational data suggest that acute kidney injury (AKI) has far reaching effects on all other major organ systems in the body. Common in critically ill children and adults, AKI is independently associated with worse short and long term morbidity, as well as mortality, in these vulnerable populations. Evidence exists in adult populations regarding the impact AKI has on life course. Recently, non-renal organ effects of AKI have been highlighted in pediatric AKI survivors. Given the unique pediatric considerations related to somatic growth and neurodevelopmental consequences, pediatric AKI has the potential to fundamentally alter life course outcomes. In this article, we highlight the challenging and complex interplay between AKI and the brain, heart, lungs, immune system, growth, functional status, and longitudinal outcomes. Specifically, we discuss the biologic basis for how AKI may contribute to neurologic injury and neurodevelopment, cardiac dysfunction, acute lung injury, immunoparalysis and increased risk of infections, diminished somatic growth, worsened functional status and health related quality of life, and finally the impact on young adult health and life course outcomes.
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Affiliation(s)
- Chetna K Pande
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Mallory B Smith
- Division of Pediatric Critical Care Medicine, Department of Pediatrics, University of Washington, Seattle, WA, United States.,Harborview Injury Prevention and Research Center, University of Washington, Seattle, WA, United States
| | - Danielle E Soranno
- Section of Nephrology, Departments of Pediatrics, Bioengineering and Medicine, University of Colorado, Aurora, CO, United States
| | - Katja M Gist
- Division of Cardiology, Department of Pediatrics, Cioncinnati Children's Hospital Medical Center, University of Cincinnati School of Medicine, Cincinnati, OH, United States
| | - Dana Y Fuhrman
- Division of Critical Care Medicine, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States.,Division of Nephrology, Department of Pediatrics, UPMC Children's Hospital of Pittsburgh, Pittsburgh, PA, United States
| | - Kristin Dolan
- Division of Critical Care Medicine, Department of Pediatrics, University of Missouri Kansas City, Children's Mercy Hospital, Kansas City, MO, United States
| | - Andrea L Conroy
- Ryan White Center for Pediatric Infectious Disease and Global Health, Department of Pediatrics, Indiana University School of Medicine, Indianapolis, IN, United States
| | - Ayse Akcan-Arikan
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States.,Division of Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
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15
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Shi Y, Xu S, Ngoi NYL, Zeng Q, Ye Z. PRL-3 dephosphorylates p38 MAPK to promote cell survival under stress. Free Radic Biol Med 2021; 177:72-87. [PMID: 34662712 DOI: 10.1016/j.freeradbiomed.2021.10.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 09/17/2021] [Accepted: 10/14/2021] [Indexed: 01/21/2023]
Abstract
Hypoxia within the tumor microenvironment, which leads to excessive ROS and genomic instability, is one of the hallmarks of cancer, contributing to self-renewal capability, metastasis, and radio-chemotherapy resistance. PRL-3 is an oncoprotein involved in various pro-survival signaling pathways, such as Ras/Erk, PI3K/Akt, Src/STAT, mTORC1 and JAK/STAT. However, there is little evidence connecting PRL-3-mediated apoptosis resistance to tumor microenvironmental stress. In this study, by profiling the PRL-3 expression of multiple tumor types retrieved from public databases (TCGA and NCBI GEO), we confirmed the oncogenic function of PRL-3 and found an intriguing connection between PRL-3 expression and tumor hypoxia signature genes. Moreover, by using CoCl2, a hypoxia mimetic and ROS inducer, we discovered that cells stably expressing PRL-3, but not catalytically-inactive mutant PRL-3 C104S, showed significant resistance to CoCl2 -induced apoptosis. This resistance to apoptosis was found to depend on p38 MAPK signaling and was further confirmed in other conditions of microenvironmental stress, including UV, H2O2 and hypoxia. Mechanistically, we proved that PRL-3 is a direct phosphatase of p38 MAPK under stressed conditions. Additionally, in mouse models of tumor metastasis, higher lung metastatic burden and lower p38 MAPK phosphorylation were found in mice seeded with GFP-PRL-3 expressing cells compared with those seeded with GFP-Ctrl cells. Taken together, our study identified a critical role of RPL-3 in tumorigenesis by negatively regulating p38 MAPK activity in order to facilitate tumor cell adaptation to a hypoxic stressed tumor microenvironment and suggests that PRL-3 could serve as a promising novel therapeutic target for cancer patients.
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Affiliation(s)
- Yin Shi
- Department of Immunology, Zhejiang University School of Medicine, Hangzhou, 310058, China; Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 119077, Singapore.
| | - Shengfeng Xu
- Department of Genetics, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA
| | - Natalie Y L Ngoi
- Department of Investigational Cancer Therapeutics, Division of Cancer Medicine, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA; Department of Hematology-Oncology, National University Cancer Institute, 119228, Singapore
| | - Qi Zeng
- Institute of Molecular and Cell Biology, A*STAR Agency for Science Technology and Research, 138673, Singapore; Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, 119260, Singapore.
| | - Zu Ye
- Department of Physiology, Yong Loo Lin School of Medicine, National University of Singapore, 119077, Singapore; Institute of Molecular and Cell Biology, A*STAR Agency for Science Technology and Research, 138673, Singapore; Department of Molecular and Cellular Oncology, The University of Texas MD Anderson Cancer Center, Houston, 77030, USA.
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16
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Lushchak VI, Duszenko M, Gospodaryov DV, Garaschuk O. Oxidative Stress and Energy Metabolism in the Brain: Midlife as a Turning Point. Antioxidants (Basel) 2021; 10:1715. [PMID: 34829586 PMCID: PMC8614699 DOI: 10.3390/antiox10111715] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 01/10/2023] Open
Abstract
Neural tissue is one of the main oxygen consumers in the mammalian body, and a plentitude of metabolic as well as signaling processes within the brain is accompanied by the generation of reactive oxygen (ROS) and nitrogen (RNS) species. Besides the important signaling roles, both ROS and RNS can damage/modify the self-derived cellular components thus promoting neuroinflammation and oxidative stress. While previously, the latter processes were thought to progress linearly with age, newer data point to midlife as a critical turning point. Here, we describe (i) the main pathways leading to ROS/RNS generation within the brain, (ii) the main defense systems for their neutralization and (iii) summarize the recent literature about considerable changes in the energy/ROS homeostasis as well as activation state of the brain's immune system at midlife. Finally, we discuss the role of calorie restriction as a readily available and cost-efficient antiaging and antioxidant lifestyle intervention.
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Affiliation(s)
- Volodymyr I. Lushchak
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., 76018 Ivano-Frankivsk, Ukraine; (V.I.L.); (D.V.G.)
- Department of Medical Biochemistry, I. Horbachevsky Ternopil National Medical University, 46002 Ternopil, Ukraine
- Research and Development University, 13a Shota Rustaveli Str., 76018 Ivano-Frankivsk, Ukraine
| | - Michael Duszenko
- Department of Neurophysiology, Institute of Physiology, University of Tübingen, 72074 Tübingen, Germany;
| | - Dmytro V. Gospodaryov
- Department of Biochemistry and Biotechnology, Vasyl Stefanyk Precarpathian National University, 57 Shevchenko Str., 76018 Ivano-Frankivsk, Ukraine; (V.I.L.); (D.V.G.)
| | - Olga Garaschuk
- Department of Neurophysiology, Institute of Physiology, University of Tübingen, 72074 Tübingen, Germany;
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17
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Li JM, Chen FF, Li GH, Zhu JL, Zhou Y, Wei XY, Zheng F, Wang LL, Zhang W, Zhong M, Zhang MM, Ding WY. Soluble Klotho-integrin β1/ERK1/2 pathway ameliorates myocardial fibrosis in diabetic cardiomyopathy. FASEB J 2021; 35:e21960. [PMID: 34694637 DOI: 10.1096/fj.202100952r] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 09/05/2021] [Accepted: 09/14/2021] [Indexed: 11/11/2022]
Abstract
Soluble Klotho (sKL) is closely related to insulin resistance, which is a major factor in the progression of diabetic cardiomyopathy (DCM). The purpose of this study was to investigate the role of sKL in the regulation of DCM and the mechanism involved. A mouse model of type 2 diabetes was induced by high-fat diet and streptozotocin injection. An insulin-resistant cardiac fibroblast model was established by high glucose and high insulin. KL gene overexpression was achieved in vivo and vitro through transfection with an adenovirus-harboring KL-cDNA. Gene overexpression was used to evaluate the role of sKL in the pathophysiologic characteristics of DCM. Insulin-resistant cardiac fibroblasts reduced sKL expression and collagen deposition. Diabetic mice constructed by streptozotocin exhibited severe insulin resistance, inflammation, fibrosis, left ventricular dysfunction, and sKL downregulation. The overexpression of sKL mitigated insulin resistance and metabolic disturbance; inflammation, fibrosis, and upregulated collagen I/III content ratio in diabetic state were significantly reduced. Our findings were accompanied by notable moderation of cardiac function. Further, blunted phosphorylation of Akt was restored with sKL gene overexpression, and activated phosphorylation of extracellular signal-regulated kinase 1/2 in DCM was reduced. Our results suggest that sKL protein overexpression exerts a defensive measure by ameliorating selective insulin resistance in mouse DCM, thus revealing its underlying mechanism for potential human DCM treatment.
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Affiliation(s)
- Jia-Min Li
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
| | - Fang-Fang Chen
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
| | - Guo-Hua Li
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
| | | | - Yu Zhou
- Shandong University of Finance and Economics, Ji'nan, P.R. China
| | - Xin-Yi Wei
- The Third Hospital of Jinan, Ji'nan, P.R. China
| | - Fei Zheng
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
| | - Li-Li Wang
- Department II of Cardiology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Ji'nan, P.R. China
| | - Wei Zhang
- Department of Cardiology, Shandong Qilu Hospital, Ji'nan, P.R. China
| | - Ming Zhong
- Department of Cardiology, Shandong Qilu Hospital, Ji'nan, P.R. China
| | - Ming-Ming Zhang
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
| | - Wen-Yuan Ding
- Department Ⅱ of Cardiology, Shandong Provincial Qianfoshan Hospital (The First Affiliated Hospital of Shandong First Medical University), Ji'nan, P.R. China
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18
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Morevati M, Mace ML, Egstrand S, Nordholm A, Doganli C, Strand J, Rukov JL, Torsetnes SB, Gorbunova V, Olgaard K, Lewin E. Extrarenal expression of α-klotho, the kidney related longevity gene, in Heterocephalus glaber, the long living Naked Mole Rat. Sci Rep 2021; 11:15375. [PMID: 34321565 PMCID: PMC8319335 DOI: 10.1038/s41598-021-94972-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 07/16/2021] [Indexed: 11/19/2022] Open
Abstract
The Naked Mole Rat (NMR), Heterocephalus glaber, provides an interesting model for studying biomarkers of longevity due to its long lifespan of more than 30 years, almost ten times longer than that of mice and rats. α-Klotho (klotho) is an aging-suppressor gene, and overexpression of klotho is associated with extended lifespan in mice. Klotho is predominantly expressed in the kidney. The expression profile of klotho in the NMR has not previously been reported. The present investigation studied the expression of klotho in the kidney of NMR with that of Rattus Norvegicus (RN) and demonstrated that klotho was expressed in the kidney of NMR at the same level as found in RN. Besides, a significant expression of Kl mRNA was found in the liver of NMR, in contrast to RN, where no hepatic expression was detected. The Klotho expression was further confirmed at the protein level. Thus, the results of the present comparative study indicate a differential tissue expression of klotho between different species. Besides its important function in the kidney, Klotho might also be of significance in the liver of NMR. It is suggested that the hepatic extrarenal expression of klotho may function as a further longevity-related factor in supplement to the Klotho in the kidney.
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Affiliation(s)
- M Morevati
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark.
| | - M L Mace
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark
| | - S Egstrand
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark.,Nephrological Department B, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - A Nordholm
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark.,Nephrological Department B, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
| | - C Doganli
- Department of Cellular and Molecular Medicine, University of Copenhagen, Copenhagen, Denmark
| | - J Strand
- Randers Regnskov, Randers, Denmark
| | - J L Rukov
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark
| | - S B Torsetnes
- Department of Neurology, Akershus University Hospital, Oslo, Norway
| | - V Gorbunova
- Department of Biology, University of Rochester, Rochester, NY, USA
| | - K Olgaard
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark
| | - E Lewin
- Nephrological Department P 2131, Rigshospitalet, University of Copenhagen, 9 Blegdamsvej, 2100, Copenhagen, Denmark.,Nephrological Department B, Herlev Hospital, University of Copenhagen, Copenhagen, Denmark
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19
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Protective effects of klotho on palmitate-induced podocyte injury in diabetic nephropathy. PLoS One 2021; 16:e0250666. [PMID: 33891667 PMCID: PMC8064606 DOI: 10.1371/journal.pone.0250666] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 04/08/2021] [Indexed: 11/19/2022] Open
Abstract
The anti-aging gene, klotho, has been identified as a multi-functional humoral factor and is implicated in multiple biological processes. However, the effects of klotho on podocyte injury in diabetic nephropathy are poorly understood. Thus, the current study aims to investigate the renoprotective effects of klotho against podocyte injury in diabetic nephropathy. We examined lipid accumulation and klotho expression in the kidneys of diabetic patients and animals. We stimulated cultured mouse podocytes with palmitate to induce lipotoxicity-mediated podocyte injury with or without recombinant klotho. Klotho level was decreased in podocytes of lipid-accumulated obese diabetic kidneys and palmitate-treated mouse podocytes. Palmitate-treated podocytes showed increased apoptosis, intracellular ROS, ER stress, inflammation, and fibrosis, and these were significantly attenuated by klotho administration. Klotho treatment restored palmitate-induced downregulation of the antioxidant molecules, Nrf2, Keap1, and SOD1. Klotho inhibited the phosphorylation of FOXO3a, promoted its nuclear translocation, and then upregulated MnSOD expression. In addition, klotho administration attenuated palmitate-induced cytoskeleton changes, decreased nephrin expression, and increased TRPC6 expression, eventually improving podocyte albumin permeability. These results suggest that klotho administration prevents palmitate-induced functional and morphological podocyte injuries, and this may indicate that klotho is a potential therapeutic agent for the treatment of podocyte injury in obese diabetic nephropathy.
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20
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Alge J, Dolan K, Angelo J, Thadani S, Virk M, Akcan Arikan A. Two to Tango: Kidney-Lung Interaction in Acute Kidney Injury and Acute Respiratory Distress Syndrome. Front Pediatr 2021; 9:744110. [PMID: 34733809 PMCID: PMC8559585 DOI: 10.3389/fped.2021.744110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Accepted: 09/03/2021] [Indexed: 12/17/2022] Open
Abstract
Acute Kidney Injury (AKI) is an independent risk factor for mortality in hospitalized patients. AKI syndrome leads to fluid overload, electrolyte and acid-base disturbances, immunoparalysis, and propagates multiple organ dysfunction through organ "crosstalk". Preclinical models suggest AKI causes acute lung injury (ALI), and conversely, mechanical ventilation and ALI cause AKI. In the clinical setting, respiratory complications are a key driver of increased mortality in patients with AKI, highlighting the bidirectional relationship. This article highlights the challenging and complex interactions between the lung and kidney in critically ill patients with AKI and acute respiratory distress syndrome (ARDS) and global implications of AKI. We discuss disease-specific molecular mediators and inflammatory pathways involved in organ crosstalk in the AKI-ARDS construct, and highlight the reciprocal hemodynamic effects of elevated pulmonary vascular resistance and central venous pressure (CVP) leading to renal hypoperfusion and pulmonary edema associated with fluid overload and increased right ventricular afterload. Finally, we discuss the notion of different ARDS "phenotypes" and the response to fluid overload, suggesting differential organ crosstalk in specific pathological states. While the directionality of effect remains challenging to distinguish at the bedside due to lag in diagnosis with conventional renal function markers and lack of tangible damage markers, this review provides a paradigm for understanding kidney-lung interactions in the critically ill patient.
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Affiliation(s)
- Joseph Alge
- Division of Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Kristin Dolan
- Division of Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States.,Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Joseph Angelo
- Division of Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Sameer Thadani
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Manpreet Virk
- Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
| | - Ayse Akcan Arikan
- Division of Nephrology, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States.,Division of Critical Care Medicine, Department of Pediatrics, Baylor College of Medicine, Texas Children's Hospital, Houston, TX, United States
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21
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Xing L, Guo H, Meng S, Zhu B, Fang J, Huang J, Chen J, Wang Y, Wang L, Yao X, Wang H. Klotho ameliorates diabetic nephropathy by activating Nrf2 signaling pathway in podocytes. Biochem Biophys Res Commun 2020; 534:450-456. [PMID: 33256980 DOI: 10.1016/j.bbrc.2020.11.061] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Accepted: 11/14/2020] [Indexed: 12/20/2022]
Abstract
Oxidative stress plays a key role in the pathogenesis of diabetic nephropathy (DN). The anti-aging protein Klotho has been demonstrated to have antioxidant capacity. Nuclear factor-erythroid 2-related factor 2 (Nrf2) is a central transcription factor regulating antioxidant responses. The present study aimed to explore the effects of Klotho on DN and the underlying mechanisms related to Nrf2. Low glucose (LG) or high glucose (HG) medium-cultured podocytes and diabetic db/db mice were overexpressed with Klotho via adenoviral transfer to evaluate the effects of Klotho on Nrf2 signaling, oxidative stress, podocyte apoptosis, and renal function and histopathology. Klotho overexpression significantly induced the expression and activation of Nrf2 as well as its downstream targets SOD2 and NQO1 in podocytes. Moreover, Klotho overexpression inhibited HG-induced oxidative stress and apoptosis in podocytes. Co-treatment with Nrf2 inhibitor trigonelline prevented Klotho-induced expression of SOD2 and NQO1, and abolished Klotho-conferred antioxidant and anti-apoptotic effects. In db/db mice, Klotho overexpression also activated Nrf2 signaling, and suppressed diabetes-induced oxidative stress and podocyte apoptosis, which were accompanied by improved renal function and decreased glomerulosclerosis. Our data highlight a novel Nrf2-mediated antioxidant mechanism underlying the protective effects of Klotho in podocytes and indicate the therapeutic potential of targeting Klotho to activate Nrf2 in DN.
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Affiliation(s)
- Lina Xing
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Hengjiang Guo
- Department of Anesthesiology, Shanghai Children's Hospital, Shanghai Jiao Tong University, Shanghai, 200062, China
| | - Sixuan Meng
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Bingbing Zhu
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Ji Fang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Jiebo Huang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Junliang Chen
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Yunman Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Li Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China
| | - Xingmei Yao
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China.
| | - Hao Wang
- Department of Nephrology, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, 200062, China.
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22
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Mytych J, Sołek P, Będzińska A, Rusinek K, Warzybok A, Tabęcka-Łonczyńska A, Koziorowski M. Klotho-mediated changes in the expression of Atg13 alter formation of ULK1 complex and thus initiation of ER- and Golgi-stress response mediated autophagy. Apoptosis 2020; 25:57-72. [PMID: 31732843 DOI: 10.1007/s10495-019-01579-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the previous paper of our group, we have demonstrated that one of the crucial factors involved in the crosstalk between autophagy and apoptosis is klotho protein. We have shown that klotho silencing in normal human fibroblasts intensifies lipopolysaccharide (LPS)-induced p-eIF2a-mediated stress of endoplasmic reticulum and thus leads to retardation of prosurvival autophagy and induction of apoptotic cell death. In this study, we have performed a detailed step-by-step analysis of autophagy flux-related genes' expression and endoplasmic reticulum and Golgi stress related pathways in order to determine the exact mechanistic event when autophagy is inhibited in klotho-deficient cells on account of apoptosis initiation. We provide evidence that klotho-silencing in LPS-treated cells results in differential course of ER- and Golgi-mediated stress response. Further, we show that in klotho-deficient cells formation of ULK1 complex is inhibited and thus autophagy initiation is blocked on the account of apoptosis activation, while in the control cells cytoprotective autophagy is activated. Finally, in klotho-deficient cells formation of ULK1 complex is prevented by downregulated expression of Atg13. Thus, this study suggests a novel targeting pathway for efficient elimination of autophagy-deficient cells.
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Affiliation(s)
- Jennifer Mytych
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland.
| | - Przemysław Sołek
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
| | - Agnieszka Będzińska
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
| | - Kinga Rusinek
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
| | - Aleksandra Warzybok
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
| | - Anna Tabęcka-Łonczyńska
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
| | - Marek Koziorowski
- Department of Animal Physiology and Reproduction, Faculty of Biotechnology, University of Rzeszow, Werynia 502, 36-100, Kolbuszowa, Poland
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23
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Asih PR, Prikas E, Stefanoska K, Tan ARP, Ahel HI, Ittner A. Functions of p38 MAP Kinases in the Central Nervous System. Front Mol Neurosci 2020; 13:570586. [PMID: 33013322 PMCID: PMC7509416 DOI: 10.3389/fnmol.2020.570586] [Citation(s) in RCA: 79] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 08/18/2020] [Indexed: 12/22/2022] Open
Abstract
Mitogen-activated protein (MAP) kinases are a central component in signaling networks in a multitude of mammalian cell types. This review covers recent advances on specific functions of p38 MAP kinases in cells of the central nervous system. Unique and specific functions of the four mammalian p38 kinases are found in all major cell types in the brain. Mechanisms of p38 activation and downstream phosphorylation substrates in these different contexts are outlined and how they contribute to functions of p38 in physiological and under disease conditions. Results in different model organisms demonstrated that p38 kinases are involved in cognitive functions, including functions related to anxiety, addiction behavior, neurotoxicity, neurodegeneration, and decision making. Finally, the role of p38 kinases in psychiatric and neurological conditions and the current progress on therapeutic inhibitors targeting p38 kinases are covered and implicate p38 kinases in a multitude of CNS-related physiological and disease states.
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Affiliation(s)
- Prita R Asih
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Emmanuel Prikas
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Kristie Stefanoska
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Amanda R P Tan
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Holly I Ahel
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
| | - Arne Ittner
- Dementia Research Centre, Faculty of Medicine, Health and Human Sciences, Macquarie University, Sydney, NSW, Australia
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24
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Bi X, Yang K, Zhang B, Zhao J. The Protective Role of Klotho in CKD-Associated Cardiovascular Disease. KIDNEY DISEASES 2020; 6:395-406. [PMID: 33313060 DOI: 10.1159/000509369] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 06/12/2020] [Indexed: 12/20/2022]
Abstract
Background Cardiovascular diseases (CVDs) are the leading cause of morbidity and mortality in advanced CKD. The major pathological changes of CKD-associated CVD are severe vascular media calcification, aberrant cardiac remodeling such as hypertrophy and fibrosis, as well as accelerated atherosclerosis. α-Klotho is proposed as an anti-aging gene, which is primarily expressed in the kidney. Recent studies reveal that α-Klotho deficiency is associated with profound cardiovascular dysfunction. Of note, CKD represents extremely declined α-Klotho levels, hinting that α-Klotho deficiency may be implicated in the pathogenesis of CKD-associated CVD. Summary Based on the pathogenic mechanism of α-Klotho deficiency and decreased Klotho levels in the circulation even early in stage 1 of CKD, α-Klotho serves as a sensitive biomarker for renal insufficiency and also a novel predictor of risk of overall mortality of CVD events in CKD. Meanwhile, loss of Klotho resulted from kidney dysfunction markedly contributes to the progressive development of CKD and CVD. By contrast, prevention of Klotho decline using exogenous supplementation or genetically activated ways by several mechanisms can dramatically mitigate cardiac dysfunction, prevent vascular calcification, and retard the progression of CKD-accelerated atherosclerosis. Key Messages Klotho deficiency is proposed as a novel predictive biomarker as well as a pathogenic contributor to CVD events in CKD. In the future, Klotho may be a crucial potential therapeutic strategy to decrease the burden of CVD comorbidity with CKD in clinics.
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Affiliation(s)
- Xianjin Bi
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Ke Yang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Bo Zhang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jinghong Zhao
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Kidney Center of PLA, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
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25
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Tian LM, Peng Y, Ke D, Li H, Chen L, Zhang C, Sen L, Tian DZ, Zhou MS, Ai XS, Wang P. The effect of Yang Yan Qing E Wan on senescent phenotypes and the expression of β-catenin and p16 INK4a in human skin fibroblasts. J Tissue Viability 2020; 29:354-358. [PMID: 32768331 DOI: 10.1016/j.jtv.2020.06.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 05/18/2020] [Accepted: 06/08/2020] [Indexed: 01/21/2023]
Abstract
This aim of this study was to observe the effect of Yang Yan Qing E Wan (YYQEW) on senescent phenotypes and the expression of β-catenin and p16INK4a in the hydrogen peroxide (H2O2)-induced premature senescence of normal human skin fibroblasts (NHSFs). Primary normal human skin fibroblasts were randomly divided into a normal group, a blank group, a model group, and a YYQEW group. The cells of the model group and the YYQEW group were exposed to 150 μmol/L H2O2 for 2 h. The morphological changes of the cells were analyzed by microscopy and by kits used to estimate the activities of the senescence-associated β-galactosidase (SA-β-gal), reactive oxygen species (ROS), and superoxide dismutase (SOD). The outcomes revealed that dyeing rate proportion of SA-β-gal was 2.78% ± 0.22% in the normal group, 2.83% ± 0.29% in the blank group, 37.58% ± 2.56% in the model group, and 28.39% ± 0.93% in the YYQEW group. The number of SA-β-gal positive cells was thus significantly higher in the model group than in the normal or blank group. There were also fewer SA-β-gal positive cells in the YYQEW group compared with the model group. The expression of ROS and p16INK4a in the model group increased significantly compared with that in the normal or blank groups, while the expression of ROS and p16INK4a in the YYQEW group decreased significantly compared with that in the model group. The expression of SOD and β-catenin in the model group decreased significantly compared with that in the normal or blank group, and the expression of SOD and β-catenin in the YYQEW group increased significantly compared with that in the model group. Overall, it was found that YYQEW was able to delay the senescence of NHSFs induced by H2O2 treatment by alleviating oxidative stress and regulating a number of senescence-related molecules, such as β-catenin and p16INK4a.
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Affiliation(s)
- Li-Ming Tian
- Department of Dermatology, Wuhan No.1 Hospital, Hospital of Traditional Chinese and Western Medicine Affiliated to Hubei University of Chinese Medicine, Wuhan Hospital of Traditional Chinese and Western Medicine Affiliated to Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Yuan Peng
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Dan Ke
- Department of Dermatology, Chongqing Traditional Chinese Medicine Hospital, Chongqing, 400000, China
| | - Heng Li
- Department of Dermatology, The Affiliated Hospital of Hubei University of Chinese Medicine, Wuhan, 430061, China
| | - Long Chen
- Department of Dermatology, Wuhan No.1 Hospital, Hospital of Traditional Chinese and Western Medicine Affiliated to Hubei University of Chinese Medicine, Wuhan Hospital of Traditional Chinese and Western Medicine Affiliated to Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Chong Zhang
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Lin Sen
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Dai-Zhi Tian
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Mi-Si Zhou
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China
| | - Xiao-Shuang Ai
- Department of Dermatology, Wuhan No.1 Hospital, Hospital of Traditional Chinese and Western Medicine Affiliated to Hubei University of Chinese Medicine, Wuhan Hospital of Traditional Chinese and Western Medicine Affiliated to Huazhong University of Science and Technology, Wuhan, 430022, China
| | - Ping Wang
- Institute of Geriatrics, Hubei University of Chinese Medicine, Wuhan, 430065, China.
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26
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Liberale L, Kraler S, Camici GG, Lüscher TF. Ageing and longevity genes in cardiovascular diseases. Basic Clin Pharmacol Toxicol 2020; 127:120-131. [DOI: 10.1111/bcpt.13426] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/27/2020] [Accepted: 04/27/2020] [Indexed: 12/22/2022]
Affiliation(s)
- Luca Liberale
- Center for Molecular Cardiology University of Zürich Schlieren Switzerland
- Department of Internal Medicine First Clinic of Internal Medicine University of Genoa Genoa Italy
| | - Simon Kraler
- Center for Molecular Cardiology University of Zürich Schlieren Switzerland
| | - Giovanni G. Camici
- Center for Molecular Cardiology University of Zürich Schlieren Switzerland
- Department of Cardiology University Heart Center University Hospital Zurich Zurich Switzerland
- Department of Research and Education University Hospital Zurich Zurich Switzerland
| | - Thomas F. Lüscher
- Center for Molecular Cardiology University of Zürich Schlieren Switzerland
- Heart Division Royal Brompton and Harefield Hospitals and National Heart and Lung Institute Imperial College London UK
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27
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Six I, Flissi N, Lenglet G, Louvet L, Kamel S, Gallet M, Massy ZA, Liabeuf S. Uremic Toxins and Vascular Dysfunction. Toxins (Basel) 2020; 12:toxins12060404. [PMID: 32570781 PMCID: PMC7354618 DOI: 10.3390/toxins12060404] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 06/15/2020] [Accepted: 06/17/2020] [Indexed: 02/07/2023] Open
Abstract
Vascular dysfunction is an essential element found in many cardiovascular pathologies and in pathologies that have a cardiovascular impact such as chronic kidney disease (CKD). Alteration of vasomotricity is due to an imbalance between the production of relaxing and contracting factors. In addition to becoming a determining factor in pathophysiological alterations, vascular dysfunction constitutes the first step in the development of atherosclerosis plaques or vascular calcifications. In patients with CKD, alteration of vasomotricity tends to emerge as being a new, less conventional, risk factor. CKD is characterized by the accumulation of uremic toxins (UTs) such as phosphate, para-cresyl sulfate, indoxyl sulfate, and FGF23 and, consequently, the deleterious role of UTs on vascular dysfunction has been explored. This accumulation of UTs is associated with systemic alterations including inflammation, oxidative stress, and the decrease of nitric oxide production. The present review proposes to summarize our current knowledge of the mechanisms by which UTs induce vascular dysfunction.
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Affiliation(s)
- Isabelle Six
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
- Correspondence: ; Tel./Fax: +03-22-82-54-25
| | - Nadia Flissi
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
| | - Gaëlle Lenglet
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
| | - Loïc Louvet
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
| | - Said Kamel
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
- Amiens-Picardie University Hospital, Human Biology Center, 80054 Amiens, France
| | - Marlène Gallet
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
| | - Ziad A. Massy
- Service de Néphrologie et Dialyse, Assistance Publique—Hôpitaux de Paris (APHP), Hôpital Universitaire Ambroise Paré, 92100 Boulogne Billancourt, France;
- INSERM U1018, Equipe 5, CESP (Centre de Recherche en Épidémiologie et Santé des Populations), Université Paris Saclay et Université Versailles Saint Quentin en Yvelines, 94800 Villejuif, France
| | - Sophie Liabeuf
- UR 7517 UPJV, Pathophysiological Mechanisms and Consequences of Cardiovascular Calcifications (MP3CV), Picardie Jules Verne University, 80025 Amiens, France; (N.F.); (G.L.); (L.L.); (S.K.); (M.G.); (S.L.)
- Pharmacology Department, Amiens University Hospital, 80025 Amiens, France
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28
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Sathiyanathan P, Samsonraj RM, Tan CLL, Ling L, Lezhava A, Nurcombe V, Stanton LW, Cool SM. A genomic biomarker that identifies human bone marrow-derived mesenchymal stem cells with high scalability. Stem Cells 2020; 38:1124-1136. [PMID: 32510174 DOI: 10.1002/stem.3203] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 03/29/2020] [Indexed: 12/12/2022]
Abstract
Although the application of human mesenchymal stem cells (hMSCs) to repair damaged or diseased tissues has proven relatively effective, both the donor-to-donor variability in ex vivo expansion rates and the maintenance of stemness remain a bottleneck to widespread translation. Previous work from this laboratory stratified donors into those yielding hMSCs with high- or low-growth capacity; global transcriptomic analysis revealed that high-growth-capacity hMSCs were characterized by a loss of the gene encoding glutathione S-transferase theta 1 (GSTT1). These GSTT1-null hMSCs demonstrated increased proliferative rates, clonogenic potential, and longer telomeres compared with low-growth capacity hMSCs that were GSTT1-positive. Thus, this study identifies GSTT1 as a novel genomic DNA biomarker for hMSC scalability.
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Affiliation(s)
- Padmapriya Sathiyanathan
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore.,Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Rebekah M Samsonraj
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Clarissa L L Tan
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Ling Ling
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Alexander Lezhava
- Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Victor Nurcombe
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Lawrence W Stanton
- Genome Institute of Singapore, Agency for Science, Technology and Research (A*STAR), Singapore
| | - Simon M Cool
- Institute of Medical Biology, Agency for Science, Technology and Research (A*STAR), Singapore.,Department of Orthopaedic Surgery, National University of Singapore, Singapore
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29
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Nava R, Zuhl M, Bourbeau K, Moriarty T, Welch A, Mermier C. Relationship between aerobic fitness, antioxidant capacity and the anti-aging hormone, Klotho. GAZZETTA MEDICA ITALIANA ARCHIVIO PER LE SCIENZE MEDICHE 2020. [DOI: 10.23736/s0393-3660.18.03972-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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30
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The Role of Signaling Pathways of Inflammation and Oxidative Stress in Development of Senescence and Aging Phenotypes in Cardiovascular Disease. Cells 2019; 8:cells8111383. [PMID: 31689891 PMCID: PMC6912541 DOI: 10.3390/cells8111383] [Citation(s) in RCA: 147] [Impact Index Per Article: 29.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/24/2019] [Accepted: 10/28/2019] [Indexed: 12/28/2022] Open
Abstract
The ASK1-signalosome→p38 MAPK and SAPK/JNK signaling networks promote senescence (in vitro) and aging (in vivo, animal models and human cohorts) in response to oxidative stress and inflammation. These networks contribute to the promotion of age-associated cardiovascular diseases of oxidative stress and inflammation. Furthermore, their inhibition delays the onset of these cardiovascular diseases as well as senescence and aging. In this review we focus on whether the (a) ASK1-signalosome, a major center of distribution of reactive oxygen species (ROS)-mediated stress signals, plays a role in the promotion of cardiovascular diseases of oxidative stress and inflammation; (b) The ASK1-signalosome links ROS signals generated by dysfunctional mitochondrial electron transport chain complexes to the p38 MAPK stress response pathway; (c) the pathway contributes to the sensitivity and vulnerability of aged tissues to diseases of oxidative stress; and (d) the importance of inhibitors of these pathways to the development of cardioprotection and pharmaceutical interventions. We propose that the ASK1-signalosome regulates the progression of cardiovascular diseases. The resultant attenuation of the physiological characteristics of cardiomyopathies and aging by inhibition of the ASK1-signalosome network lends support to this conclusion. Importantly the ROS-mediated activation of the ASK1-signalosome p38 MAPK pathway suggests it is a major center of dissemination of the ROS signals that promote senescence, aging and cardiovascular diseases. Pharmacological intervention is, therefore, feasible through the continued identification of potent, non-toxic small molecule inhibitors of either ASK1 or p38 MAPK activity. This is a fruitful future approach to the attenuation of physiological aspects of mammalian cardiomyopathies and aging.
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31
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Donlon TA, Morris BJ, Chen R, Masaki KH, Allsopp RC, Willcox DC, Tiirikainen M, Willcox BJ. Analysis of Polymorphisms in 59 Potential Candidate Genes for Association With Human Longevity. J Gerontol A Biol Sci Med Sci 2019; 73:1459-1464. [PMID: 29300832 DOI: 10.1093/gerona/glx247] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Indexed: 12/12/2022] Open
Abstract
Longevity is a polygenic trait in which genetic predisposition is particularly important. We hypothesized that among genes differentially expressed in response to caloric restriction, several may be candidate longevity genes. We tested 459 single-nucleotide polymorphisms (SNPs) in 47 genes differentially expressed in calorically restricted mice and 12 other genes for association with longevity. Subjects were American men of Japanese ancestry, 440 aged ≥95 years and 374 with an average life span. Based on a dominant model of inheritance, an association with longevity at the p < .05 level was seen for SNPs in 13 of the genes. Testing by all possible models increased the number of genes to 18. After correction for multiple testing, four genes retained significance, namely, MAP3K5 (p = .00004), SIRT7 (p = .00004), SIRT5 (p = .0007), and PIK3R1 (p = .01). In a dominant model, association with longevity was seen for multiple adjacent SNPs within two of these genes (MAP3K5 and PIK3R1), as well as in FLT1, consistent with linkage disequilibrium with a causative variant in the vicinity of each respective SNP set. MAP3K5 and FLT1 haplotypes were associated with longevity. In conclusion, the present study implicates variation in MAP3K5, FLT1, PIK3R1, SIRT7, and SIRT5 in human longevity.
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Affiliation(s)
- Timothy A Donlon
- Department of Research, Honolulu Heart Program/Honolulu-Asia Aging Study (HAAS), Kuakini Medical Center, Hawaii.,John A. Burns School of Medicine, University of Hawaii, Honolulu
| | - Brian J Morris
- Department of Research, Honolulu Heart Program/Honolulu-Asia Aging Study (HAAS), Kuakini Medical Center, Hawaii.,Basic & Clinical Genomics Laboratory, School of Medical Sciences and Bosch Institute, University of Sydney, New South Wales, Australia.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu
| | - Randi Chen
- Department of Research, Honolulu Heart Program/Honolulu-Asia Aging Study (HAAS), Kuakini Medical Center, Hawaii
| | - Kamal H Masaki
- Department of Research, Honolulu Heart Program/Honolulu-Asia Aging Study (HAAS), Kuakini Medical Center, Hawaii.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu
| | | | - D Craig Willcox
- Department of Human Welfare, Okinawa International University, Japan
| | | | - Bradley J Willcox
- Department of Research, Honolulu Heart Program/Honolulu-Asia Aging Study (HAAS), Kuakini Medical Center, Hawaii.,Department of Geriatric Medicine, John A. Burns School of Medicine, University of Hawaii, Honolulu
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Peripheral levels of the anti-aging hormone Klotho in patients with depression. J Neural Transm (Vienna) 2019; 126:771-776. [PMID: 31055648 DOI: 10.1007/s00702-019-02008-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 04/30/2019] [Indexed: 01/06/2023]
Abstract
Klotho is a humoral factor with pleiotropic effects. Most notably, Klotho deficiency is associated with a phenotype comprising organ manifestations accompanying aging including atherosclerosis and cognitive impairment. Research on the role of Klotho in affective disorder is scarce, which is surprising in light of the fact that depression is associated with accelerated cellular aging as well as aging-related phenotypes and comorbidity observed in Klotho deficiency. Soluble α-Klotho (sKlotho) serum levels in patients with a major depressive episode and either undergoing electroconvulsive therapy (n = 16) or a monotherapy with an antidepressant (n = 37) were investigated. We measured the sKlotho serum levels in those patients before and after treatment and compared the baseline levels with those of age-matched healthy controls (n = 39). No group differences were found between the baseline sKlotho levels of patients and controls (573.5 pg/ml vs. 563.8 pg/ml; p = 0.80) and between pre- and post-treatment in the patients with depression (563.8 pg/ml vs. 561.8 pg/ml; p = 0.15), when treated either with electroconvulsive therapy or antidepressant. The major limitation of our study might be that peripheral material such as serum might not reliably reflect processes in the central nervous system. In sum, this first study on peripheral sKlotho levels in a clinical sample cannot confirm a global Klotho dysregulation in depression as it has been already suggested by others. Nonetheless, further preclinical and clinical studies on the involvement of Klotho in affective disorders should be carried out.
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Martín-González C, González-Reimers E, Quintero-Platt G, Martínez-Riera A, Santolaria-Fernández F. Soluble α-Klotho in Liver Cirrhosis and Alcoholism. Alcohol Alcohol 2019; 54:204-208. [PMID: 30860544 DOI: 10.1093/alcalc/agz019] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 02/21/2019] [Indexed: 11/13/2022] Open
Abstract
AIMS AND BACKGROUND Alpha Klotho is a transmembrane protein that serves as co-receptor for FGF23. Ectodomain of membrane bound α Klotho may be shed by membrane bound proteases (activated, among other factors, by tumor necrosis factor (TNF)-α) generating the soluble form of the protein (sKl) that functions as a hormone by itself. It modulates calcium influx into cells, blunts IGF-1/Insulin signaling, promotes synthesis of antioxidants, generally slows down tumor progression, delays cell senescence, is neuroprotective and promotes oligodendrocyte maturation and myelin synthesis, and muscle rejuvenation. It may be involved in inflammation and exerts antifibrogenic effects. Some of these pathways may become altered in alcoholism or liver cirrhosis, but data are scattered and scarce and an update is required. METHOD Literature survey. RESULTS AND CONCLUSIONS Alcohol consumption in non-alcoholics is inversely related to sKl, but alcoholic cirrhotics showed higher-than-normal sKl values in association with liver function derangement. In hepatoma cells, the intensity of Klotho staining was related to faster tumor progression and a shortened life span. Among severe alcoholic cirrhotics sKl is directly related to serum TNF-α levels, and, inversely, to brain atrophy. Given the antioxidant, anti-inflammatory, and antifibrogenic effects of Klotho, perhaps the increase in cirrhosis (and in other inflammatory conditions, such as sepsis or cancer) reflects an attempt to regulate increased inflammation, but clinical and experimental research is urgently needed in this field.
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Affiliation(s)
- C Martín-González
- Servicio de Medicina Interna. Hospital Universitario de Canarias. Universidad de La Laguna. Tenerife, Canary Islands, Spain
| | - E González-Reimers
- Servicio de Medicina Interna. Hospital Universitario de Canarias. Universidad de La Laguna. Tenerife, Canary Islands, Spain
| | - G Quintero-Platt
- Servicio de Medicina Interna. Hospital Universitario de Canarias. Universidad de La Laguna. Tenerife, Canary Islands, Spain
| | - A Martínez-Riera
- Servicio de Medicina Interna. Hospital Universitario de Canarias. Universidad de La Laguna. Tenerife, Canary Islands, Spain
| | - F Santolaria-Fernández
- Servicio de Medicina Interna. Hospital Universitario de Canarias. Universidad de La Laguna. Tenerife, Canary Islands, Spain
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Perrotte M, Le Page A, Fournet M, Le Sayec M, Rassart É, Fulop T, Ramassamy C. Blood-based redox-signature and their association to the cognitive scores in MCI and Alzheimer's disease patients. Free Radic Biol Med 2019; 130:499-511. [PMID: 30445127 DOI: 10.1016/j.freeradbiomed.2018.10.452] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 10/22/2018] [Accepted: 10/31/2018] [Indexed: 01/08/2023]
Abstract
Oxidative stress plays a pivotal and early role in the pathophysiology of Alzheimer's disease (AD). There is convincing evidence that oxidative alterations in AD and in mild cognitive impairment (MCI) patients are not limited to the brain but are extended to the blood compartment. However, the oxidative pattern in plasma is still inconclusive. Moreover, their potential association with the clinical scores MMSE (Mini-Mental State Examination) and MoCA (Montreal Cognitive Assessment) is poorly investigated. The aim of our study was to establish a pattern of blood-based redox alterations in prodromal AD and their evolution during the progression of the disease. Our results showed a reduction in the total antioxidant capacity (TAC) and an increase of the stress-response proteins apolipoprotein J (ApoJ) and Klotho in MCI subjects. For the first time, we evidenced circulating-proteasome activity. We found that the alteration of the circulating-proteasome activity is associated with the accumulation of oxidized proteins in plasma form early AD. Interestingly, the TAC, the levels of vitamin D and the activity of proteasome were positively associated to the clinical scores MMSE and MoCA. The levels of protein carbonyls and of ApoJ were negatively associated to the MMSE and MoCA scores. The levels of apolipoprotein D (ApoD) were not different between groups. Interestingly, the receiver operating characteristic (ROC) curves analysis indicated that these redox markers provide a fair classification of different groups with high accuracy. Overall, our results strengthen the notion that some specific oxidative markers could be considered as non-invasive blood-based biomarkers for an early MCI diagnosis and AD progression.
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Affiliation(s)
- Morgane Perrotte
- INRS-Institut Armand-Frappier, Laval, QC, Canada; Institut sur la Nutrition et les Aliments Fonctionnels, Laval University, Québec, Canada
| | - Aurélie Le Page
- Department of Medicine, Geriatric Division, Research Center on Aging, Université de Sherbrooke, QC, Canada
| | | | | | - Éric Rassart
- Université Québec à Montréal, Dept. Sciences biologiques, QC, Canada
| | - Tamas Fulop
- Department of Medicine, Geriatric Division, Research Center on Aging, Université de Sherbrooke, QC, Canada
| | - Charles Ramassamy
- INRS-Institut Armand-Frappier, Laval, QC, Canada; Institut sur la Nutrition et les Aliments Fonctionnels, Laval University, Québec, Canada.
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Richardson L, Dixon CL, Aguilera-Aguirre L, Menon R. Oxidative stress-induced TGF-beta/TAB1-mediated p38MAPK activation in human amnion epithelial cells. Biol Reprod 2018; 99:1100-1112. [PMID: 29893818 PMCID: PMC7190655 DOI: 10.1093/biolre/ioy135] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 05/04/2018] [Accepted: 06/07/2018] [Indexed: 02/07/2023] Open
Abstract
Term and preterm parturition are associated with oxidative stress (OS)-induced p38 mitogen-activated protein kinase (p38MAPK)-mediated fetal tissue (amniochorion) senescence. p38MAPK activation is a complex cell- and stimulant-dependent process. Two independent pathways of OS-induced p38MAPK activation were investigated in amnion epithelial cells (AECs) in response to cigarette smoke extract (CSE: a validated OS inducer in fetal cells): (1) the OS-mediated oxidation of apoptosis signal-regulating kinase (ASK)-1 bound Thioredoxin (Trx[SH]2) dissociates this complex, creating free and activated ASK1-signalosome and (2) transforming growth factor-mediated activation of (TGF)-beta-activated kinase (TAK)1 and TGF-beta-activated kinase 1-binding protein (TAB)1. AECs isolated from normal term, not-in-labor fetal membranes increased p38MAPK in response to CSE and downregulated it in response to antioxidant N-acetylcysteine. In AECs, both Trx and ASK1 were localized; however, they remained dissociated and not complexed, regardless of conditions. Silencing either ASK1 or its downstream effectors (MKK3/6) did not affect OS-induced p38MAPK activation. Conversely, OS increased TGF-beta's release from AECs and increased phosphorylation of both p38MAPK and TAB1. Silencing of TAB1, but not TAK1, prevented p38MAPK activation, which is indicative of TAB1-mediated autophosphorylation of p38MAPK, an activation mechanism seldom seen. OS-induced p38MAPK activation in AECs is ASK1-Trx signalosome-independent and is mediated by the TGF-beta pathway. This knowledge will help to design strategies to reduce p38MAPK activation-associated pregnancy risks.
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Affiliation(s)
- Lauren Richardson
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch, Galveston, Texas, USA
- Department of Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, Tx, 77550
| | - Christopher Luke Dixon
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Leopoldo Aguilera-Aguirre
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch, Galveston, Texas, USA
| | - Ramkumar Menon
- Department of Obstetrics and Gynecology, Division of Maternal-Fetal Medicine and Perinatal Research, The University of Texas Medical Branch, Galveston, Texas, USA
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Filip R, Radzki RP, Bieńko M. Novel insights into the relationship between nonalcoholic fatty liver disease and osteoporosis. Clin Interv Aging 2018; 13:1879-1891. [PMID: 30323574 PMCID: PMC6174895 DOI: 10.2147/cia.s170533] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Excess fat deposition and insulin resistance are considered the main risk factors for nonalcoholic fatty liver disease (NAFLD), and therefore, not surprisingly, the global prevalence of NAFLD increases in parallel with both obesity and type 2 diabetes. Although deterioration of bone homeostasis in patients with NAFLD is commonly observed, its etiology has not been fully elucidated yet. It was shown in several studies that bone tissue seems to be independently associated with NAFLD. A mechanistic perspective puts the liver at the center of mutual interdependencies obviously involving adipose tissue and muscles and also the bone matrix and bone cells, which are relatively novel. In this review, various pathophysiological mechanisms and possible mediating molecules that may interplay between NAFLD and bone tissue are described. Chronic inflammation, vitamin D3, growth hormone, insulin-like growth factor 1, osteopontin, fetuin-A, irisin, osteocalcin, and osteoprotegerin from osteoblasts have been proposed as mediators of mutual interactions among the skeleton, fatty tissue, and liver. Although to date there are still many issues that have not been elucidated, growing evidence suggests that screening and surveillance of bone mineral density in patients with NAFLD should be considered in future strategies and guidelines for NAFLD management.
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Affiliation(s)
- Rafał Filip
- Department of Gastroenterology with IBD Unit, Clinical Hospital 2, Rzeszów, Poland,
- University of Rzeszów, Rzeszów, Poland,
| | - Radosław P Radzki
- Department of Animal Physiology, University of Life Sciences, Lublin, Poland
| | - Marek Bieńko
- Department of Animal Physiology, University of Life Sciences, Lublin, Poland
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Abstract
The immune response to acute muscle damage is important for normal repair. However, in chronic diseases such as many muscular dystrophies, the immune response can amplify pathology and play a major role in determining disease severity. Muscular dystrophies are inheritable diseases that vary tremendously in severity, but share the progressive loss of muscle mass and function that can be debilitating and lethal. Mutations in diverse genes cause muscular dystrophy, including genes that encode proteins that maintain membrane strength, participate in membrane repair, or are components of the extracellular matrix or the nuclear envelope. In this article, we explore the hypothesis that an important feature of many muscular dystrophies is an immune response adapted to acute, infrequent muscle damage that is misapplied in the context of chronic injury. We discuss the involvement of the immune system in the most common muscular dystrophy, Duchenne muscular dystrophy, and show that the immune system influences muscle death and fibrosis as disease progresses. We then present information on immune cell function in other muscular dystrophies and show that for many muscular dystrophies, release of cytosolic proteins into the extracellular space may provide an initial signal, leading to an immune response that is typically dominated by macrophages, neutrophils, helper T-lymphocytes, and cytotoxic T-lymphocytes. Although those features are similar in many muscular dystrophies, each muscular dystrophy shows distinguishing features in the magnitude and type of inflammatory response. These differences indicate that there are disease-specific immunomodulatory molecules that determine response to muscle cell damage caused by diverse genetic mutations. © 2018 American Physiological Society. Compr Physiol 8:1313-1356, 2018.
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Affiliation(s)
- James G. Tidball
- Molecular, Cellular & Integrative Physiology Program, University of California, Los Angeles, California, USA
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, University of California, Los Angeles, California, USA
| | - Steven S. Welc
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
| | - Michelle Wehling-Henricks
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
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Abstract
Advancing age promotes cardiovascular disease (CVD), the leading cause of death in the United States and many developed nations. Two major age-related arterial phenotypes, large elastic artery stiffening and endothelial dysfunction, are independent predictors of future CVD diagnosis and likely are responsible for the development of CVD in older adults. Not limited to traditional CVD, these age-related changes in the vasculature also contribute to other age-related diseases that influence mammalian health span and potential life span. This review explores mechanisms that influence age-related large elastic artery stiffening and endothelial dysfunction at the tissue level via inflammation and oxidative stress and at the cellular level via Klotho and energy-sensing pathways (AMPK [AMP-activated protein kinase], SIRT [sirtuins], and mTOR [mammalian target of rapamycin]). We also discuss how long-term calorie restriction-a health span- and life span-extending intervention-can prevent many of these age-related vascular phenotypes through the prevention of deleterious alterations in these mechanisms. Lastly, we discuss emerging novel mechanisms of vascular aging, including senescence and genomic instability within cells of the vasculature. As the population of older adults steadily expands, elucidating the cellular and molecular mechanisms of vascular dysfunction with age is critical to better direct appropriate and measured strategies that use pharmacological and lifestyle interventions to reduce risk of CVD within this population.
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Affiliation(s)
- Anthony J. Donato
- University of Utah, Department of Internal Medicine, Division of Geriatrics, Salt Lake City, Utah
- Veterans Affairs Medical Center-Salt Lake City, Geriatrics Research Education and Clinical Center, Salt Lake City, Utah
| | - Daniel R. Machin
- University of Utah, Department of Internal Medicine, Division of Geriatrics, Salt Lake City, Utah
- Veterans Affairs Medical Center-Salt Lake City, Geriatrics Research Education and Clinical Center, Salt Lake City, Utah
| | - Lisa A. Lesniewski
- University of Utah, Department of Internal Medicine, Division of Geriatrics, Salt Lake City, Utah
- Veterans Affairs Medical Center-Salt Lake City, Geriatrics Research Education and Clinical Center, Salt Lake City, Utah
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Moderate aerobic exercise training decreases middle-aged induced pathologic cardiac hypertrophy by improving Klotho expression, MAPK signaling pathway, and oxidative stress status in Wistar rats. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2018; 21:911-919. [PMID: 30524691 PMCID: PMC6272071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVES This study aimed to investigate the effect of aerobic training on serum levels of Klotho, cardiac tissue levels of H2O2 and phosphorylation of ERK1/2 and P38 as well as left ventricular internal diameter (LVID), the left ventricle wall thickness (LVWT) and fibrosis in middle-aged rats. MATERIALS AND METHODS Forty wistar rats, including young rats (n=10, 4 month-old) and middle-aged rats (n=30, 13-15 months-old) were enrolled in this experimental study. The all young and 10 middle-aged rats were sacrificed (randomly) under deep anesthesia without any exercise training as normal young control and normal middle-aged control respectively. The remaining 20 middle-aged rats participated in 4 (n=10) or 8-week (n=10) aerobic exercise training. RESULTS There were significant differences in the plasmatic Klotho levels and the heart tissue levels of phosphorylated-ERK1/2 (p-ERK1/2), P-P38 and H2O2, LVWT, LVID and fibrosis between young and middle-aged rats (P=0.01). Plasmatic Klotho level was significantly increased after eight weeks training (P=0.011). Also, p-ERK1/2 was significantly decreased after eight weeks and p-P38 was significantly decreased in the fourth (P=0.01) and eight weeks of training (P=0.01). A similar decrease was reported for aging-induced H2O2 in the fourth (P=0.016) and eighth weeks (P=0.001). LVID was significantly increased in eight weeks, but LVWT and fibrosis was significantly reduced in the eighth week (P=0.011, P=0.028, P=0.001 respectively). CONCLUSION Moderate aerobic training attenuates aging-induced pathological cardiac hypertrophy at least partially by restoring the Klotho levels, attenuating oxidative stress, and reduction in the phosphorylation of ERK1/2, P38 and fibrosis.
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Ji N, Luan J, Hu F, Zhao Y, Lv B, Wang W, Xia M, Zhao X, Lao K. Aerobic exercise-stimulated Klotho upregulation extends life span by attenuating the excess production of reactive oxygen species in the brain and kidney. Exp Ther Med 2018; 16:3511-3517. [PMID: 30233703 PMCID: PMC6143843 DOI: 10.3892/etm.2018.6597] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Accepted: 07/13/2018] [Indexed: 01/01/2023] Open
Abstract
Aerobic exercise induces many adaptive changes in the whole body and improves metabolic characteristics. Klotho, an anti-aging gene, is mainly expressed in the brain and kidney. The roles of Klotho in the brain and kidney during aerobic exercise remain largely unknown. The present study aimed to determine whether aerobic exercise could influence the expression of Klotho, decrease reactive oxygen species (ROS) and prolong life span. Sprague Dawley rats were exercised on a motor treadmill. Klotho mRNA and protein expression levels in rat brain and kidney tissues were examined using reverse transcription-quantitative polymerase chain reaction and western blotting, respectively. ROS production was detected following intermittent aerobic exercise (IAE) or continuous aerobic exercise (CAE). Kaplan-Meier curve analysis demonstrated that aerobic exercise significantly improved rat survival (P<0.001). The ROS levels in rat brain and kidney tissues were decreased in the aerobic exercise groups compared with the control group (P<0.05). In addition, Klotho mRNA and protein expression levels were increased significantly following aerobic exercise compared with controls (P<0.05). There was no significant difference between the IAE and CAE groups in any experiments (P>0.05). These results suggest that aerobic exercise-stimulated Klotho upregulation extends the life span by attenuating the excess production of ROS in the brain and kidney. As Klotho exhibits a potential anti-aging effect, promoting Klotho expression through aerobic exercise may be a novel approach for the prevention and treatment of aging and aging-related diseases.
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Affiliation(s)
- Naichun Ji
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Jing Luan
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China.,Institute of Holistic Integrated Medicine, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 712046, P.R. China
| | - Fengrui Hu
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China.,Institute of Holistic Integrated Medicine, Shaanxi University of Chinese Medicine, Xi'an, Shaanxi 712046, P.R. China
| | - Yirong Zhao
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Bosen Lv
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Wen Wang
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Meng Xia
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Xin Zhao
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
| | - Kejing Lao
- Department of Physical Education and Shaanxi Key Laboratory of Brain Disorders and Institute of Basic and Translational Medicine, Xi'an Medical University, Xi'an, Shaanxi 710021, P.R. China
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Dehghani M, Brobey RK, Wang Y, Souza G, Amato RJ, Rosenblatt KP. Klotho inhibits EGF-induced cell migration in Caki-1 cells through inactivation of EGFR and p38 MAPK signaling pathways. Oncotarget 2018; 9:26737-26750. [PMID: 29928482 PMCID: PMC6003560 DOI: 10.18632/oncotarget.25481] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 05/08/2018] [Indexed: 02/07/2023] Open
Abstract
Klotho is a single-pass transmembrane protein with documented anti-cancer properties. Recent reports have implicated Klotho as an inhibitor of transforming growth factor β1 induced cell migration in renal fibrosis. Overexpression of epidermal growth factor receptor (EGFR) is known to promote tumor initiation and progression in clear-cell renal cell carcinoma (cRCC). We tested our hypothesis that Klotho inhibits EGF-mediated cell migration in cRCC by interfering with the EGFR signaling complex and mitogen-activated protein kinase (MAPK) pathways. We performed cell adhesion, migration, and biochemical studies in vitro using Caki-1 cell line. In addition, we validated the cell culture studies with expression analysis of six de-identified FFPE tissues from primary and metastatic cRCC patients. Our studies show that Klotho inhibited EGF-induced Caki-1 de-adhesion and decreased spreading on collagen type 1. Klotho also inhibited EGF-induced α2β1 integrin-dependent cell migration on collagen type 1. To test the involvement of MAPK pathways in EGF-induced Caki-1 cell motility, the cells were pretreated with either SB203580, a specific p38 MAPK inhibitor, or Klotho. SB203580 blocked the EGF-induced Caki-1 cell migration. Klotho had a comparable inhibitory effect. Our FFPE clinical specimens revealed decreased Klotho mRNA expression compared to a control, non-cancer kidney tissue. The decrease in Klotho mRNA levels correlated with increased c-Src expression, while E-Cadherin was relatively reduced in metastatic FFPE specimens where Klotho was least expressed. Taken together, these results suggest that secreted Klotho inhibits EGF-induced pro-migratory cell morphological changes and migration in Caki-1 cells. Our data additionally suggest that decreased Klotho expression may be involved in cRCC metastasis.
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Affiliation(s)
- Mehdi Dehghani
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America
| | - Reynolds K Brobey
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America
| | - Yue Wang
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America
| | - Glauco Souza
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America.,n3D Biosciences, Inc., Houston, Texas 77030, United States of America
| | - Robert J Amato
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America
| | - Kevin P Rosenblatt
- Division of Oncology, Department of Internal Medicine, The University of Texas Health Science Center at Houston McGovern Medical School, Houston, Texas 77030, United States of America.,NX Prenatal, Inc., Bellaire, Texas 77401, United States of America.,Consultative Genomics, PLLC, Bellaire, Texas 77401, United States of America
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42
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Feng L, Allen TK, Marinello WP, Murtha AP. Roles of Progesterone Receptor Membrane Component 1 in Oxidative Stress-Induced Aging in Chorion Cells. Reprod Sci 2018; 26:394-403. [PMID: 29783884 DOI: 10.1177/1933719118776790] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Oxidative stress-mediated fetal membrane cell aging is activated prematurely in preterm premature rupture of membranes (PPROMs). The mechanism of this phenomenon is largely understudied. Progesterone receptor membrane component 1 (PGRMC1) has been recognized as a potential protective component for maintaining fetal membrane integrity and healthy pregnancies. We aimed to investigate the effects of oxidative stress (represented by hydrogen peroxide [H2O2]) on fetal membrane and chorion cell senescence, p38 mitogen-activated protein kinase (MAPK) phosphorylation, and sirtuin 3 (SIRT3) and to examine the roles of PGRMC1 in these effects. METHODS Following serum starvation for 24 hours, full-thickness fetal membrane explants and primary chorion cells were treated with H2O2 at 100, 300, and 500 µM for 24 hours. Cells were fixed for cell senescence-associated β-galactosidase assay. Cell lysates were harvested for quantitive reverse transcription polymerase chain reaction to quantify SIRT3 messenger RNA. Cell lysates were harvested for Western blot to semi-quantify SIRT3 protein and p38 MAPK phosphorylation levels, respectively. To examine the role of PGRMC1, primary chorion cells underwent the same treatment mentioned above following PGRMC1 knockdown using validated PGRMC1-specific small-interfering RNA. RESULTS Hydrogen peroxide significantly induced cell senescence and p38 MAPK phosphorylation, and it significantly decreased SIRT3 expression in full-thickness fetal membrane explants and chorion cells. These effects were enhanced by PGRMC1 knockdown. DISCUSSION This study further demonstrated that oxidative stress-induced cell aging is one of the mechanisms of PPROM and PGRMC1 acts as a protective element for maintaining fetal membrane integrity by inhibiting oxidative stress-induced chorion cell aging.
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Affiliation(s)
- Liping Feng
- 1 Department of Obstetrics and Gynecology, Duke University, Durham, NC, USA.,2 Ministry of Education and Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Terrence K Allen
- 3 Department of Anesthesiology, Duke University, Durham, NC, USA
| | | | - Amy P Murtha
- 1 Department of Obstetrics and Gynecology, Duke University, Durham, NC, USA
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Hoyer C, Sartorius A, Aksay SS, Bumb JM, Janke C, Thiel M, Haffner D, Leifheit-Nestler M, Kranaster L. Electroconvulsive therapy enhances the anti-ageing hormone Klotho in the cerebrospinal fluid of geriatric patients with major depression. Eur Neuropsychopharmacol 2018; 28:428-435. [PMID: 29274997 DOI: 10.1016/j.euroneuro.2017.12.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 10/25/2017] [Accepted: 12/06/2017] [Indexed: 02/06/2023]
Abstract
Klotho is a humoral factor with pleiotropic effects. Most notably, Klotho deficiency is associated with a phenotype comprising organ manifestations accompanying aging including atherosclerosis and cognitive impairment. Research on the role of Klotho in affective disorder is scarce, which is surprising in light of the fact that depression is associated with accelerated cellular aging as well as aging-related phenotypes and comorbidity observed in Klotho deficiency. On these grounds we investigated Klotho levels in the cerebrospinal fluid (CSF) and serum of eight geriatric patients undergoing electroconvulsive therapy (ECT) for severe depression. We hypothesize that ECT as a highly effective antidepressant treatment leads enhances Klotho levels. We found a significant difference between pre- and post-ECT CSF Klotho (792.5pg/ml vs. 991.3pg/ml, p=0.0020), but no difference in serum Klotho (602.5 vs. 594.3, p=0.32). Moreover, CSF Klotho increase positively correlated with the number of single ECT sessions that were performed in each patient (F1, 6)=7.84, p=0.031). Conjointly, the results of our exploratory study with a small sample size suggest a central nervous system-specific impact of ECT on Klotho, which may in turn partake in mediating the antidepressant effect of ECT. We suggest the modulation of neuroinflammatory processes, which have been ascribed pathophysiological relevance within the conceptual framework of the neuroinflammation hypothesis of depression, through ECT as a potential mechanism by which Klotho is enhanced in response to treatment. Further preclinical and clinical investigation should aim for a precise identification of the role of Klotho in depressive disorder.
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Affiliation(s)
- Carolin Hoyer
- Department of Neurology, University Medical Centre Mannheim, Mannheim, Germany
| | - Alexander Sartorius
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - Suna Su Aksay
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - Jan Malte Bumb
- Department of Addictive Behavior and Addiction Medicine, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany
| | - Christoph Janke
- Department of Anesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Mannheim, Germany
| | - Manfred Thiel
- Department of Anesthesiology and Critical Care Medicine, University Medical Centre Mannheim, Mannheim, Germany
| | - Dieter Haffner
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Maren Leifheit-Nestler
- Department of Pediatric Kidney, Liver and Metabolic Diseases, Hannover Medical School, Hannover, Germany
| | - Laura Kranaster
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim/Heidelberg University, Mannheim, Germany.
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Guo Y, Zhuang X, Huang Z, Zou J, Yang D, Hu X, Du Z, Wang L, Liao X. Klotho protects the heart from hyperglycemia-induced injury by inactivating ROS and NF-κB-mediated inflammation both in vitro and in vivo. Biochim Biophys Acta Mol Basis Dis 2017; 1864:238-251. [PMID: 28982613 DOI: 10.1016/j.bbadis.2017.09.029] [Citation(s) in RCA: 105] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 09/10/2017] [Accepted: 09/28/2017] [Indexed: 12/23/2022]
Abstract
Cardiac inflammation and oxidative stress play a key role in the pathogenesis of diabetic cardiomyopathy (DCM). The anti-aging protein Klotho has been found to protect cells from inflammation and oxidative stress. The current study aimed to explore the cardioprotective effects of Klotho on DCM and the underlying mechanisms. H9c2 cells and neonatal cardiomyocytes were incubated with 33mM glucose in the presence or absence of Klotho. Klotho pretreatment effectively inhibited high glucose-induced inflammation, ROS generation, apoptosis, mitochondrial dysfunction, fibrosis and hypertrophy in both H9c2 cells and neonatal cardiomyocytes. In STZ-induced type 1 diabetic mice, intraperitoneal injection of Klotho at 0.01mg/kg per 48h for 3months completely suppressed cardiac inflammatory cytokines and oxidative stress and prevented cardiac cell death and remodeling, which subsequently improved cardiac dysfunction without affecting hyperglycemia. This study revealed that Klotho may exert its protective effects by augmenting nuclear factor erythroid 2-related factor 2 (Nrf2) expression and inactivating nuclear factor κB (NF-κB) activation both in vitro and in vivo. Thus, this work demonstrated for the first time that the anti-aging protein Klotho may be a potential therapeutic agent to treat DCM by inhibiting oxidative stress and inflammation. We also demonstrated the critical roles of the Nrf2 and NF-κB pathways in diabetes-stimulated cardiac injuries and indicated that they may be key therapeutic targets for diabetic complications.
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Affiliation(s)
- Yue Guo
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China; Key Laboratory of Assisted Circulation, Ministry of Health, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, PR China
| | - Xiaodong Zhuang
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Zena Huang
- Department of Critical Care Medicine and Emergency, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou, PR China
| | - Jing Zou
- Department of Neurology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510630, PR China
| | - Daya Yang
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Xun Hu
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Zhimin Du
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China
| | - Lichun Wang
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China; Key Laboratory of Assisted Circulation, Ministry of Health, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, PR China.
| | - Xinxue Liao
- Department of Cardiology, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, PR China; Key Laboratory of Assisted Circulation, Ministry of Health, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, Guangdong 510080, PR China.
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Lu L, Guo J, Hua Y, Huang K, Magaye R, Cornell J, Kelly DJ, Reid C, Liew D, Zhou Y, Chen A, Xiao W, Fu Q, Wang BH. Cardiac fibrosis in the ageing heart: Contributors and mechanisms. Clin Exp Pharmacol Physiol 2017; 44 Suppl 1:55-63. [PMID: 28316086 DOI: 10.1111/1440-1681.12753] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Revised: 03/09/2017] [Accepted: 03/12/2017] [Indexed: 01/30/2023]
Abstract
Cardiac fibrosis refers to an excessive deposition of extracellular matrix (ECM) in cardiac tissue. Fibrotic tissue is stiffer and less compliant, resulting in subsequent cardiac dysfunction and heart failure. Cardiac fibrosis in the ageing heart may involve activation of fibrogenic signalling and inhibition of anti-fibrotic signalling, leading to an imbalance of ECM turnover. Excessive accumulation of ECM such as collagen in older patients contributes to progressive ventricular dysfunction. Overexpression of collagen is derived from various sources, including higher levels of fibrogenic growth factors, proliferation of fibroblasts and cellular transdifferentiation. These may be triggered by factors, such as oxidative stress, inflammation, hypertension, cellular senescence and cell death, contributing to age-related fibrotic cardiac remodelling. In this review, we will discuss the fibrogenic contributors in age-related cardiac fibrosis, and the potential mechanisms by which fibrogenic processes can be interrupted for therapeutic intent.
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Affiliation(s)
- Lu Lu
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Jingbin Guo
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Yue Hua
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Kevin Huang
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Ruth Magaye
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Jake Cornell
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Darren J Kelly
- Department of Medicine, St Vincent's Hospital, University of Melbourne, Melbourne, Vic., Australia
| | - Christopher Reid
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia.,NHMRC Cardiovascular Centre of Research Excellence, School of Public Health, Curtin University, Perth, WA, Australia
| | - Danny Liew
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Yingchun Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Aihua Chen
- Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Wei Xiao
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
| | - Qiang Fu
- Department of Cardiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Bing Hui Wang
- Centre of Cardiovascular Research and Education in Therapeutics, Department of Epidemiology and Preventive Medicine, Monash University, Melbourne, Vic., Australia
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Deoxyarbutin displays antitumour activity against melanoma in vitro and in vivo through a p38-mediated mitochondria associated apoptotic pathway. Sci Rep 2017; 7:7197. [PMID: 28775302 PMCID: PMC5543205 DOI: 10.1038/s41598-017-05416-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Accepted: 05/30/2017] [Indexed: 02/05/2023] Open
Abstract
Deoxyarbutin (DeoxyArbutin, dA), a natural compound widely used in skin lighting, displayed selectively cytotoxicity in vitro. In the study, we found that dA significantly inhibited viability/proliferation of B16F10 melanoma cells, induced tumour cell arrest and apoptosis. Furthermore, dA triggered its pro-apoptosis through damaging the mitochondrial function (membrane potential loss, ATP depletion and ROS overload generation etc.) and activating caspase-9, PARP, caspase-3 and the phosphorylation of p38. Treatment with p38 agonist confirmed the involvement of p38 pathway triggered by dA in B16F10 cells. The in vivo finding also revealed that administration of dA significantly decreased the tumour volume and tumour metastasis in B16F10 xenograft model by inhibiting tumour proliferation and inducing tumour apoptosis. Importantly, the results indicated that dA was specific against tumour cell lines and had no observed systemic toxicity in vivo. Taken together, our study demonstrated that dA could combate tumour in vitro and in vivo by inhibiting the proliferation and metastasis of tumour via a p38-mediated mitochondria associated apoptotic pathway.
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Wang T, Liao Y, Sun Q, Tang H, Wang G, Zhao F, Jin Y. Upregulation of Matrix Metalloproteinase-9 in Primary Cultured Rat Astrocytes Induced by 2-Chloroethanol Via MAPK Signal Pathways. Front Cell Neurosci 2017; 11:218. [PMID: 28769771 PMCID: PMC5516094 DOI: 10.3389/fncel.2017.00218] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 07/06/2017] [Indexed: 01/25/2023] Open
Abstract
2-Chloroethanol (2-CE) is one of the reactive metabolites of 1,2-DCE in vivo, which might contribute to brain edema formation induced by 1,2-dichloroethane (1,2-DCE) poisoning. Thus, the purpose of this study was to explore the roles of mitogen-activated protein kinase (MAPK) signal pathways in upregulation of matrix metalloproteinase-9 (MMP-9) in 2-CE exposed rat astrocytes. Expression of p38 MAPK (p38), extracellular signal regulated protein kinase (ERK), c-Jun N-terminal kinase (JNK) and MMP-9 at both protein and gene levels in rat astrocytes were determined using western blot and real-time RT-PCR methods. The results showed that both protein and mRNA levels of MMP-9 in 2-CE exposed astrocytes significantly increased. Meanwhile, protein levels of phosphorylated p38 (p-p38), ERK1/2 (p-ERK1/2) and JNK1/2 (p-JNK1/2) in 2-CE exposed astrocytes also significantly increased. In addition, both protein and mRNA levels of MMP-9 significantly decreased in response to reduced protein levels of p-p38, p-ERK1/2 and p-JNK1/2 achieved by supplement with their specific inhibitors, indicating that activation of MAPK signal pathways might play an important role in upregulation of MMP-9 expression at the transcriptional level in 2-CE exposed astrocytes. Furthermore, since pretreatment of n-acetyl-l-cysteine (NAC), a powerful antioxidant amino acid, could attenuate the elevated levels of MMP-9, p-p38, p-ERK2 and p-JNK1/2 in 2-CE exposed astrocytes, activation of MAPK signal pathways in 2-CE exposed astrocytes could be mediated partially by reactive oxygen species (ROS), which was most likely generated in the metabolism of 2-CE.
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Affiliation(s)
- Tong Wang
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
| | - Yingjun Liao
- Department of Physiology, China Medical UniversityShenyang, China
| | - Qi Sun
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
| | - Hongge Tang
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
| | - Gaoyang Wang
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
| | - Fenghong Zhao
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
| | - Yaping Jin
- Department of Occupational and Environmental Health, School of Public Health, China Medical UniversityShenyang, China
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Xu Y, Sun Z. Regulation of S-formylglutathione hydrolase by the anti-aging gene klotho. Oncotarget 2017; 8:88259-88275. [PMID: 29179433 PMCID: PMC5687603 DOI: 10.18632/oncotarget.19111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 06/26/2017] [Indexed: 12/22/2022] Open
Abstract
Klotho is an aging-suppressor gene. The purpose of this study is to investigate the binding sites (receptors) and function of short-form Klotho (Skl). We showed that Skl physically bound to multiple proteins. We found physical and functional interactions between Skl and S-formylglutathione hydrolase (FGH), a key enzyme in the generation of the major cellular anti-oxidant GSH, using co-immunoprecipitation-coupled mass spectrometry. We further confirmed the colocalization of Skl and FGH around the nucleus in kidney cells using immunofluorescent staining. Skl positively regulated FGH gene expression via Kid3 transcription factor. Overexpression of Skl increased FGH mRNA and protein expression while silencing of Skl attenuated FGH mRNA and protein expression. Klotho gene mutation suppressed FGH expression in red blood cells and kidneys resulting in anemia and kidney damage in mice. Overexpression of Skl increased total GSH production and the GSH/GSSG ratio, an index of anti-oxidant capacity, leading to a decrease in intracellular H2O2 and superoxide levels. The antioxidant activity of Skl was eliminated by silencing of FGH, indicating that Skl increased GSH via FGH. Interestingly, Skl directly interacted with FGH and regulated its function. Site-directed mutagenesis of the N-glycan-modified residues in Skl abolished its antioxidant activity, suggesting that these N-glycan moieties are important features that interact with FGH. Specific mutation of Asp to Ala at site 285 resulted in a loss of anti-oxidant activity of Skl, suggesting that N-glycosylation at site 285 is the key mechanism that determines Skl activity. Therefore, this study demonstrates, for the first time, that Skl regulates anti-oxidant GSH generation via interaction with FGH through N-glycosylation.
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Affiliation(s)
- Yuechi Xu
- Department of Physiology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Zhongjie Sun
- Department of Physiology, College of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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Hsia CCW, Ravikumar P, Ye J. Acute lung injury complicating acute kidney injury: A model of endogenous αKlotho deficiency and distant organ dysfunction. Bone 2017; 100:100-109. [PMID: 28347910 PMCID: PMC5621379 DOI: 10.1016/j.bone.2017.03.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2017] [Revised: 03/23/2017] [Accepted: 03/23/2017] [Indexed: 12/11/2022]
Abstract
The lung interfaces with atmospheric oxygen via a large surface area and is perfused by the entire venous return bearing waste products collected from the whole body. It is logical that the lung is endowed with generous anti-oxidative capacity derived both locally and from the circulation. The single-pass pleiotropic alpha-Klotho (αKlotho) protein was discovered when its genetic disruption led to premature multi-organ degeneration and early death. The extracellular domain of αKlotho is cleaved by secretases and released into circulation as endocrine soluble αKlotho protein, exerting wide-ranging cytoprotective effects including anti-oxidation on distant organs including the lung, which exhibits high sensitivity to circulating αKlotho insufficiency. Because circulating αKlotho is derived mainly from the kidney, acute kidney injury (AKI) leads to systemic αKlotho deficiency that in turn increases the risks of pulmonary complications, i.e., edema and inflammation, culminating in the acute respiratory distress syndrome. Exogenous αKlotho increases endogenous anti-oxidative capacity partly via activation of the Nrf2 pathway to protect lungs against injury caused by direct hyperoxia exposure or AKI. This article reviews the current knowledge of αKlotho antioxidation in the lung in the setting of AKI as a model of circulating αKlotho deficiency, an under-recognized condition that weakens innate cytoprotective defenses and contributes to the dysfunction in distant organs.
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Affiliation(s)
- Connie C W Hsia
- Department of Internal Medicine, Pulmonary and Critical Care Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390-9034, United States of America.
| | - Priya Ravikumar
- Department of Internal Medicine, Pulmonary and Critical Care Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390-9034, United States of America; Charles and Jane Pak Center of Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, TX 75390-9034, United States of America
| | - Jianfeng Ye
- Charles and Jane Pak Center of Mineral Metabolism and Clinical Research, University of Texas Southwestern Medical Center, Dallas, TX 75390-9034, United States of America
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Mencke R, Hillebrands JL. The role of the anti-ageing protein Klotho in vascular physiology and pathophysiology. Ageing Res Rev 2017; 35:124-146. [PMID: 27693241 DOI: 10.1016/j.arr.2016.09.001] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 09/23/2016] [Indexed: 02/08/2023]
Abstract
Klotho is an anti-ageing protein that functions in many pathways that govern ageing, like regulation of phosphate homeostasis, insulin signaling, and Wnt signaling. Klotho expression levels and levels in blood decline during ageing. The vascular phenotype of Klotho deficiency features medial calcification, intima hyperplasia, endothelial dysfunction, arterial stiffening, hypertension, and impaired angiogenesis and vasculogenesis, with characteristics similar to aged human arteries. Klotho-deficient phenotypes can be prevented and rescued by Klotho gene expression or protein supplementation. High phosphate levels are likely to be directly pathogenic and are a prerequisite for medial calcification, but more important determinants are pathways that regulate cellular senescence, suggesting that deficiency of Klotho renders cells susceptible to phosphate toxicity. Overexpression of Klotho is shown to ameliorate medial calcification, endothelial dysfunction, and hypertension. Endogenous vascular Klotho expression is a controversial subject and, currently, no compelling evidence exists that supports the existence of vascular membrane-bound Klotho expression, as expressed in kidney. In vitro, Klotho has been shown to decrease oxidative stress and apoptosis in both SMCs and ECs, to reduce SMC calcification, to maintain the contractile SMC phenotype, and to prevent μ-calpain overactivation in ECs. Klotho has many protective effects with regard to the vasculature and constitutes a very promising therapeutic target. The purpose of this review is to explore the etiology of the vascular phenotype of Klotho deficiency and the therapeutic potential of Klotho in vascular disease.
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