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Alkhatabi HA. Deciphering aging-associated molecular mechanisms in bone marrow derived hematopoietic stem cells in the elderly using NGS data. Bioinformation 2024; 20:180-189. [PMID: 38497076 PMCID: PMC10941783 DOI: 10.6026/973206300200180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/19/2024] Open
Abstract
Aging is a complex process that is not yet fully understood. Despite advancements in research, a deeper understanding of the underlying biological mechanisms is necessary to develop interventions that promote healthy longevity. The aim of this study was to elucidate the complex mechanisms associated with healthy aging and longevity in healthy elderly individuals. The RNA sequencing (RNA-seq) data used in this study was obtained from the Gene Expression Omnibus (GEO) database (accession number GSE104406), which was collected from Fluorescent Activated Cell Sorting (FACS) of human bone marrow derived human hematopoietic stem cells (BM-HSCs) (Lineage-, CD34+, CD38-) young (18-30 years old) and aged (65-75 years old) donors who had no known hematological malignancy, with 10 biological replicates per group. The GEO RNA-seq Experiments Interactive Navigator (GREIN) software was used to obtain raw gene-level counts and filtered metadata for this dataset. Next generation knowledge discovery (NGKD) tools provided by BioJupies were used to obtain differentially regulated pathways, gene ontologies (GO), and gene signatures in the BM-HSCs. Finally, the L1000 Characteristic Direction Signature Search Engine (L1000CDS2) tool was used to identify specific drugs that reverse aging-associated gene signatures in old but healthy individuals. The down-regulation of signaling pathways such as longevity regulation, proteasome, Notch, apoptosis, nuclear factor kappa B (NFkB), and peroxisome proliferator-activated receptors (PPAR) signaling pathways in the BM-HSCs of healthy elderly. GO functions related to negative regulation of bone morphogenetic protein (BMP), telomeric DNA binding, nucleoside binding, calcium -dependent protein binding, chromatin-DNA binding, SMAD binding, and demethylase activity were significantly downregulated in the BM-HSCs of the elderly compared to the healthy young group. Importantly, potential drugs such as salermide, celestrol, cercosporin, dorsomorphin dihydrochloride, and LDN-193189 monohydrochloride that can reverse the aging-associated signatures in HSCs from healthy elderly were identified. The analysis of RNA-seq data based on NGKD techniques revealed a plethora of differentially regulated pathways, gene ontologies, and drugs with anti-aging potential to promote healthspan in the elderly.
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Affiliation(s)
- Hind A Alkhatabi
- Department of Biochemistry, College of Science, University of Jeddah, Jeddah, Saudi Arabia
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Schillemans T, Yan Y, Ribbenstedt A, Donat-Vargas C, Lindh CH, Kiviranta H, Rantakokko P, Wolk A, Landberg R, Åkesson A, Brunius C. OMICs Signatures Linking Persistent Organic Pollutants to Cardiovascular Disease in the Swedish Mammography Cohort. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2024; 58:1036-1047. [PMID: 38174696 PMCID: PMC10795192 DOI: 10.1021/acs.est.3c06388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 12/06/2023] [Accepted: 12/07/2023] [Indexed: 01/05/2024]
Abstract
Cardiovascular disease (CVD) development may be linked to persistent organic pollutants (POPs), including organochlorine compounds (OCs) and perfluoroalkyl and polyfluoroalkyl substances (PFAS). To explore underlying mechanisms, we investigated metabolites, proteins, and genes linking POPs with CVD risk. We used data from a nested case-control study on myocardial infarction (MI) and stroke from the Swedish Mammography Cohort - Clinical (n = 657 subjects). OCs, PFAS, and multiomics (9511 liquid chromatography-mass spectrometry (LC-MS) metabolite features; 248 proteins; 8110 gene variants) were measured in baseline plasma. POP-related omics features were selected using random forest followed by Spearman correlation adjusted for confounders. From these, CVD-related omics features were selected using conditional logistic regression. Finally, 29 (for OCs) and 12 (for PFAS) unique features associated with POPs and CVD. One omics subpattern, driven by lipids and inflammatory proteins, associated with MI (OR = 2.03; 95% CI = 1.47; 2.79), OCs, age, and BMI, and correlated negatively with PFAS. Another subpattern, driven by carnitines, associated with stroke (OR = 1.55; 95% CI = 1.16; 2.09), OCs, and age, but not with PFAS. This may imply that OCs and PFAS associate with different omics patterns with opposite effects on CVD risk, but more research is needed to disentangle potential modifications by other factors.
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Affiliation(s)
- Tessa Schillemans
- Cardiovascular
and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Yingxiao Yan
- Food
and Nutrition Sciences, Department of Life Sciences, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Anton Ribbenstedt
- Food
and Nutrition Sciences, Department of Life Sciences, Chalmers University of Technology, Gothenburg 412 96, Sweden
| | - Carolina Donat-Vargas
- Cardiovascular
and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 171 77, Sweden
- Barcelona
Institute for Global Health (ISGlobal), Barcelona 08036, Spain
| | - Christian H. Lindh
- Division
of Occupational and Environmental Medicine, Lund University, Lund 221 00, Sweden
| | - Hannu Kiviranta
- Department
of Health Security, National Institute for
Health and Welfare, Kuopio 70701, Finland
| | - Panu Rantakokko
- Department
of Health Security, National Institute for
Health and Welfare, Kuopio 70701, Finland
| | - Alicja Wolk
- Cardiovascular
and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Rikard Landberg
- Food
and Nutrition Sciences, Department of Life Sciences, Chalmers University of Technology, Gothenburg 412 96, Sweden
- Department
of Public Health and Clinical Medicine, Umeå University, Umeå 901 87, Sweden
| | - Agneta Åkesson
- Cardiovascular
and Nutritional Epidemiology, Institute of Environmental Medicine, Karolinska Institutet, Stockholm 171 77, Sweden
| | - Carl Brunius
- Food
and Nutrition Sciences, Department of Life Sciences, Chalmers University of Technology, Gothenburg 412 96, Sweden
- Chalmers
Mass Spectrometry Infrastructure, Department of Life Sciences, Chalmers University of Technology, Gothenburg 412 96, Sweden
- Medical
Epidemiology, Department of Surgical Sciences, Uppsala University, Uppsala 751 05, Sweden
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3
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Hu Z, Luo Y, Liu Y, Luo Y, Wang L, Gou S, Peng Y, Wei R, Jia D, Wang Y, Gao S, Zhang Y. Partial inhibition of class III PI3K VPS-34 ameliorates motor aging and prolongs health span. PLoS Biol 2023; 21:e3002165. [PMID: 37432924 DOI: 10.1371/journal.pbio.3002165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Accepted: 05/13/2023] [Indexed: 07/13/2023] Open
Abstract
Global increase of life expectancy is rarely accompanied by increased health span, calling for a greater understanding of age-associated behavioral decline. Motor independence is strongly associated with the quality of life of elderly people, yet the regulators for motor aging have not been systematically explored. Here, we designed a fast and efficient genome-wide screening assay in Caenorhabditis elegans and identified 34 consistent genes as potential regulators of motor aging. Among the top hits, we found VPS-34, the class III phosphatidylinositol 3-kinase that phosphorylates phosphatidylinositol (PI) to phosphatidylinositol 3-phosphate (PI(3)P), regulates motor function in aged but not young worms. It primarily functions in aged motor neurons by inhibiting PI(3)P-PI-PI(4)P conversion to reduce neurotransmission at the neuromuscular junction (NMJ). Genetic and pharmacological inhibition of VPS-34 improve neurotransmission and muscle integrity, ameliorating motor aging in both worms and mice. Thus, our genome-wide screening revealed an evolutionarily conserved, actionable target to delay motor aging and prolong health span.
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Affiliation(s)
- Zhongliang Hu
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yamei Luo
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yuting Liu
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yaru Luo
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Liangce Wang
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shengsong Gou
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Pediatrics, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuling Peng
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Rui Wei
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Da Jia
- Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Pediatrics, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University, Chengdu, China
| | - Yuan Wang
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Shangbang Gao
- Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Zhang
- National Clinical Research Center for Geriatrics, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
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Kwon I, Talib NF, Zhu J, Yang HI, Kim KS. Effects of aging-induced obesity on the transcriptional expression of adipogenesis and thermogenic activity in the gonadal white adipose, brown adipose, and skeletal muscle tissues. Phys Act Nutr 2023; 27:39-49. [PMID: 37583071 PMCID: PMC10440178 DOI: 10.20463/pan.2023.0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/27/2023] [Accepted: 06/28/2023] [Indexed: 08/17/2023] Open
Abstract
PURPOSE Aging is closely associated with chronic metabolic diseases, such as obesity, which lead to increased adiposity, skeletal muscle wasting, and imbalanced cellular energy metabolism. However, transcriptional profiles representing energy imbalances in aging-induced obesity are not fully understood. Thus, this study aimed to investigate the candidate genes predominantly regulated in aging-related obesity in spontaneously aged mice. METHODS Male C57BL/6J mice were divided into three age groups according to age: 2- (young), 12- (middle-aged), and 24- (old) months. Body weight and body composition parameters were measured in all mice. Gonadal white adipose tissue (gWAT), brown adipose tissue (BAT), and skeletal muscle (SM) were dissected and weighed. The target tissues were assessed using biochemical and histological assays. RESULTS Aging-induced obesity increased adipose mass and decreased SM weight through processes of adipocyte hypertrophy; however, recruitment of modulating adipogenesis-inducing transcription factors did not occur. Among adipokines, leptin level was greatly increased in the gWAT during aging. Interestingly, the β2-adrenergic receptor had a higher affinity than the β3-adrenergic receptor in aging-induced obesity. For the thermogenic regulation through β-adrenergic receptors (β-ARs), a declined uncoupling protein-1 (UCP-1) in the BAT was relevant to aging-induced obesity. CONCLUSION Aging-induced obesity increases leptin levels in adipocytes and decreases UCP-1 in BAT through β-ARs, according to transcriptional gene profiling. WAT browning increases energy expenditure due to exercise training adaptations. Further research is needed to discover more effective methods, such as exercise, against aging-induced obesity.
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Affiliation(s)
- Insu Kwon
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Nurul Fatihah Talib
- Department of Biomedical Science, Graduate School, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - JunShu Zhu
- Department of Biomedical Science, Graduate School, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
| | - Hyung-In Yang
- Division of Rheumatology, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Kyoung Soo Kim
- Department of Clinical Pharmacology and Therapeutics, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- Department of Biomedical Science, Graduate School, College of Medicine, Kyung Hee University, Seoul, Republic of Korea
- East-West Bone & Joint Disease Research Institute, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
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5
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Macrophages Are Polarized toward an Inflammatory Phenotype by their Aged Microenvironment in the Human Skin. J Invest Dermatol 2022; 142:3136-3145.e11. [PMID: 35850208 DOI: 10.1016/j.jid.2022.06.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 06/09/2022] [Accepted: 06/11/2022] [Indexed: 01/05/2023]
Abstract
Aging of the skin is accompanied by cellular as well as tissue environmental changes, ultimately reducing the ability of the tissue to regenerate and adequately respond to external stressors. Macrophages are important gatekeepers of tissue homeostasis, and it has been reported that their number and phenotype change during aging in a site-specific manner. How aging affects human skin macrophages and what implications this has for the aging process in the tissue are still not fully understood. Using single-cell RNA-sequencing analysis, we show that there is at least a 50% increase of macrophages in human aged skin, which appear to have developed from monocytes and exhibit more proinflammatory M1-like characteristics. In contrast, the cell-intrinsic ability of aged monocytes to differentiate into M1 macrophages was reduced. Using coculture experiments with aged dermal fibroblasts, we show that it is the aged microenvironment that drives a more proinflammatory phenotype of macrophages in the skin. This proinflammatory M1-like phenotype in turn negatively influenced the expression of extracellular matrix proteins by fibroblasts, emphasizing the impact of the aged macrophages on the skin phenotype.
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6
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Gureev AP, Andrianova NV, Pevzner IB, Zorova LD, Chernyshova EV, Sadovnikova IS, Chistyakov DV, Popkov VA, Semenovich DS, Babenko VA, Silachev DN, Zorov DB, Plotnikov EY, Popov VN. Dietary restriction modulates mitochondrial DNA damage and oxylipin profile in aged rats. FEBS J 2022; 289:5697-5713. [DOI: 10.1111/febs.16451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 03/16/2022] [Accepted: 04/01/2022] [Indexed: 11/28/2022]
Affiliation(s)
- Artem P. Gureev
- Department of Genetics, Cytology and Bioengineering Voronezh State University Voronezh Russia
- Laboratory of Metagenomics and Food Biotechnology Voronezh State University of Engineering Technology Voronezh Russia
| | - Nadezda V. Andrianova
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
| | - Irina B. Pevzner
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Ljubava D. Zorova
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | | | - Irina S. Sadovnikova
- Department of Genetics, Cytology and Bioengineering Voronezh State University Voronezh Russia
| | - Dmitry V. Chistyakov
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
| | - Vasily A. Popkov
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Dmitry S. Semenovich
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
| | - Valentina A. Babenko
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Denis N. Silachev
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Dmitry B. Zorov
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Egor Y. Plotnikov
- Belozersky Institute of Physico‐Chemical Biology Lomonosov Moscow State University Moscow Russia
- Kulakov National Medical Research Center of Obstetrics, Gynecology, and Perinatology Moscow Russia
| | - Vasily N. Popov
- Department of Genetics, Cytology and Bioengineering Voronezh State University Voronezh Russia
- Laboratory of Metagenomics and Food Biotechnology Voronezh State University of Engineering Technology Voronezh Russia
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7
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Pergialiotis V, Frountzas M, Fasoulakis Z, Daskalakis G, Chrisochoidi M, Kontzoglou K, Perrea DN. Peroxisome Proliferator-Activated Receptor Alpha (PPAR-α) as a Regulator of the Angiogenic Profile of Endometriotic Lesions. Cureus 2022; 14:e22616. [PMID: 35371629 PMCID: PMC8958147 DOI: 10.7759/cureus.22616] [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] [Accepted: 02/25/2022] [Indexed: 11/24/2022] Open
Abstract
Endometriosis is a disease that affects a significant proportion of women and its infiltrative pattern is entirely dependent on the vascular supply of lesions. Several factors seem to trigger the process of angiogenesis in endometriotic lesions. During the last years, peroxisome proliferator-activated receptors (PPARs), a group of nuclear proteins that regulate gene transcription and that seem to regulate energy consumption and expenditure, have been also implicated in the pathophysiology of angiogenesis. Their ability to regulate the course of cancer and improve the survival rates of patients has been extensively studied and seems to be partially dependent on alteration of the vascular supply of malignant lesions. Research in the field of endometriosis is scarce in the international literature and mainly focused on PPAR-gamma. However, indirect evidence suggests that PPAR-alpha (PPAR-α) may also regulate the vascular supply of endometriotic lesions as well. Specifically, PPAR-α agonists seem to downregulate angiogenesis by increasing the expression of several anti-angiogenic molecules, including thrombospondin-1 (TSP-1) and gypenoside 140 (gp140), as well as factors that are involved in the mitogen-activated protein kinase cascade. In the present article, we summarize existing indirect and direct evidence that indicates the existence of an association between the expression of PPAR-α and endometriosis to help future research in this field.
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8
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Nwadiugwu M. RNA-seq analysis of phagocytic cells from murine epididymal white adipose tissue shows immunosenescence and age-related phosphorus metabolism. Hum Cell 2022; 35:572-582. [PMID: 35032296 DOI: 10.1007/s13577-021-00663-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 12/15/2021] [Indexed: 12/01/2022]
Abstract
The underlying state of alterations in adipose tissue is hypothesized to be as a result of age-related changes. Young and aged mice have been documented to show distinct gene expression and distinct macrophage-specific adipose tissue regulation. However, more biological understanding is required to know the processes associated with these conditions in relation to the aging process. Transcriptional profiling with RNA-seq analysis was used to determine differentially expressed genes in young (2 months old) and aged (20 months old) mice macrophage-enriched phagocytic stromal vascular fractions of pooled epididymal white adipose tissue using data obtained from gene expression omnibus. Results showed distinct differentially expressed genes in young and aged mice with a p value cutoff of 0.05 and dissimilarities in the young and aged epididymal white adipose tissue phagocytic cells. Functional enrichment showed activation of cytokine-cytokine receptor interaction pathways, phosphorus metabolic processes and inflammatory pathways such as IL-17, TNF, NF-kappa B, and TGF-β, while AMPK, PPAR and oxidative phosphorylation were suppressed. The analysis showed that aging is linked with phagocytic cell decline, accumulated cellular damages, inflammation, immunosenescence and increased phosphorus metabolism. Interventions that reduce phosphate-containing compound could improve phosphorus metabolism in old age to prolong lifespan and better health.
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Affiliation(s)
- Martin Nwadiugwu
- Leonard Davis School of Gerontology, University of Southern California, 3715 McClintock Ave, Los Angeles, CA, 90089, USA.
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9
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Lagunas-Rangel FA. G protein-coupled receptors that influence lifespan of human and animal models. Biogerontology 2021; 23:1-19. [PMID: 34860303 PMCID: PMC8888397 DOI: 10.1007/s10522-021-09945-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 11/22/2021] [Indexed: 12/16/2022]
Abstract
Humanity has always sought to live longer and for this, multiple strategies have been tried with varying results. In this sense, G protein-coupled receptors (GPCRs) may be a good option to try to prolong our life while maintaining good health since they have a substantial participation in a wide variety of processes of human pathophysiology and are one of the main therapeutic targets. In this way, we present the analysis of a series of GPCRs whose activity has been shown to affect the lifespan of animal and human models, and in which we put a special interest in describing the molecular mechanisms involved. Our compilation of data revealed that the mechanisms most involved in the role of GPCRs in lifespan are those that mimic dietary restriction, those related to insulin signaling and the AMPK and TOR pathways, and those that alter oxidative homeostasis and severe and/or chronic inflammation. We also discuss the possibility of using agonist or antagonist drugs, depending on the beneficial or harmful effects of each GPCR, in order to prolong people's lifespan and healthspan.
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10
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Hill M, Třískala Z, Honců P, Krejčí M, Kajzar J, Bičíková M, Ondřejíková L, Jandová D, Sterzl I. Aging, hormones and receptors. Physiol Res 2021; 69:S255-S272. [PMID: 33094624 DOI: 10.33549/physiolres.934523] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Ageing is accompanied by deterioration in physical condition and a number of physiological processes and thus a higher risk of a range of diseases and disorders. In particular, we focused on the changes associated with aging, especially the role of small molecules, their role in physiological and pathophysiological processes and potential treatment options. Our previously published results and data from other authors lead to the conclusion that these unwanted changes are mainly linked to the hypothalamic-pituitary-adrenal axis can be slowed down, stopped, or in some cases even reversed by an appropriate treatment, but especially by a life-management adjustment.
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Affiliation(s)
- M Hill
- Department of Steroids and Proteohormones, Institute of Endocrinology, Prague, Czech Republic.
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11
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Liao J, Suen HC, Luk ACS, Yang L, Lee AWT, Qi H, Lee TL. Transcriptomic and epigenomic profiling of young and aged spermatogonial stem cells reveals molecular targets regulating differentiation. PLoS Genet 2021; 17:e1009369. [PMID: 34237055 PMCID: PMC8291634 DOI: 10.1371/journal.pgen.1009369] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 07/20/2021] [Accepted: 06/08/2021] [Indexed: 02/06/2023] Open
Abstract
Spermatogonial stem cells (SSC), the foundation of spermatogenesis and male fertility, possess lifelong self-renewal activity. Aging leads to the decline in stem cell function and increased risk of paternal age-related genetic diseases. In the present study, we performed a comparative genomic analysis of mouse SSC-enriched undifferentiated spermatogonia (Oct4-GFP+/KIT-) and differentiating progenitors (Oct4-GFP+/KIT+) isolated from young and aged testes. Our transcriptome data revealed enormous complexity of expressed coding and non-coding RNAs and alternative splicing regulation during SSC differentiation. Further comparison between young and aged undifferentiated spermatogonia suggested these differentiation programs were affected by aging. We identified aberrant expression of genes associated with meiosis and TGF-β signaling, alteration in alternative splicing regulation and differential expression of specific lncRNAs such as Fendrr. Epigenetic profiling revealed reduced H3K27me3 deposition at numerous pro-differentiation genes during SSC differentiation as well as aberrant H3K27me3 distribution at genes in Wnt and TGF-β signaling upon aging. Finally, aged undifferentiated spermatogonia exhibited gene body hypomethylation, which is accompanied by an elevated 5hmC level. We believe this in-depth molecular analysis will serve as a reference for future analysis of SSC aging.
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Affiliation(s)
- Jinyue Liao
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Hoi Ching Suen
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Alfred Chun Shui Luk
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Lele Yang
- Guangzhou Regenerative Medicine and Health Bioland Laboratory, Guangzhou Institutes of Biomedicine and Health, Guangzhou, China
| | - Annie Wing Tung Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
| | - Huayu Qi
- Guangzhou Regenerative Medicine and Health Bioland Laboratory, Guangzhou Institutes of Biomedicine and Health, Guangzhou, China
| | - Tin-Lap Lee
- Developmental and Regenerative Biology Program, School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong SAR, China
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12
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Kim MJ, Kim DH, Bang E, Noh SG, Chun P, Yokozawa T, Moon HR, Chung HY. PPARα Agonist, MHY3200, Alleviates Renal Inflammation during Aging via Regulating ROS/Akt/FoxO1 Signaling. Molecules 2021; 26:3197. [PMID: 34073584 PMCID: PMC8198004 DOI: 10.3390/molecules26113197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Revised: 05/11/2021] [Accepted: 05/14/2021] [Indexed: 12/01/2022] Open
Abstract
PPARα is a ligand-dependent transcription factor and its activation is known to play an important role in cell defense through anti-inflammatory and antioxidant effects. MHY3200 (2-[4-(5-chlorobenzo[d]thiazol-2-yl)phenoxy]-2,2-difluoroacetic acid), a novel benzothiazole-derived peroxisome proliferator-activated receptor α (PPARα) agonist, is a synthesized PPARα activator. This study examined the beneficial effects of MHY3200 on age-associated alterations in reactive oxygen species (ROS)/Akt/forkhead box (FoxO) 1 signaling in rat kidneys. Young (7-month-old) and old (22-month-old) rats were treated with MHY3200 (1 mg/kg body weight/day or 3 mg/kg body weight/day) for two weeks. MHY3200 treatment led to a notable decrease in triglyceride and insulin levels in serum from old rats. The elevated kidney ROS level, serum insulin level, and Akt phosphorylation in old rats were reduced following MHY3200 treatment; moreover, FoxO1 phosphorylation increased. MHY3200 treatment led to the increased level of FoxO1 and its target gene, MnSOD. MHY3200 suppressed cyclooxygenase-2 expression by activating PPARα and inhibiting the activation of nuclear factor-κB (NF-κB) in the kidneys of old rats. Our results suggest that MHY3200 ameliorates age-associated renal inflammation by regulating NF-κB and FoxO1 via ROS/Akt signaling.
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Affiliation(s)
- Min Jo Kim
- Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea; (M.J.K.); (D.H.K.); (E.B.)
| | - Dae Hyun Kim
- Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea; (M.J.K.); (D.H.K.); (E.B.)
| | - EunJin Bang
- Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea; (M.J.K.); (D.H.K.); (E.B.)
| | - Sang Gyun Noh
- Interdisciplinary Research Programme of Bioinformatics and Longevity Science, Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea;
| | - Pusoon Chun
- College of Pharmacy, Inje University, Gimhae 50834, Gyeongsangnam-do, Korea;
| | - Takako Yokozawa
- Graduate School Science and Engineering for Research, University of Toyama, Toyama 930-8555, Japan;
| | - Hyung Ryong Moon
- Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea; (M.J.K.); (D.H.K.); (E.B.)
| | - Hae Young Chung
- Department of Pharmacy, College of Pharmacy, Pusan National University, Geumjeong-gu, Busan 46241, Korea; (M.J.K.); (D.H.K.); (E.B.)
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13
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Obesity and aging: Molecular mechanisms and therapeutic approaches. Ageing Res Rev 2021; 67:101268. [PMID: 33556548 DOI: 10.1016/j.arr.2021.101268] [Citation(s) in RCA: 73] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 01/19/2021] [Accepted: 02/02/2021] [Indexed: 02/08/2023]
Abstract
The epidemic of obesity is a major challenge for health policymakers due to its far-reaching effects on population health and potentially overwhelming financial burden on healthcare systems. Obesity is associated with an increased risk of developing acute and chronic diseases, including hypertension, stroke, myocardial infarction, cardiovascular disease, diabetes, and cancer. Interestingly, the metabolic dysregulation associated with obesity is similar to that observed in normal aging, and substantial evidence suggests the potential of obesity to accelerate aging. Therefore, understanding the mechanism of fat tissue dysfunction in obesity could provide insights into the processes that contribute to the metabolic dysfunction associated with the aging process. Here, we review the molecular and cellular mechanisms underlying both obesity and aging, and how obesity and aging can predispose individuals to chronic health complications. The potential of lifestyle and pharmacological interventions to counter obesity and obesity-related pathologies, as well as aging, is also addressed.
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14
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Chou YH, Chen YM. Aging and Renal Disease: Old Questions for New Challenges. Aging Dis 2021; 12:515-528. [PMID: 33815880 PMCID: PMC7990354 DOI: 10.14336/ad.2020.0703] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 07/03/2020] [Indexed: 12/15/2022] Open
Abstract
Chronic kidney disease (CKD) is a growing problem among aging population, and the number of individuals at risk of end stage renal disease is rising. Part of the reason lies in incomplete understanding of the pathways underlying renal aging and kidney disease, as well as insufficient delivery of evidence-based treatment to elderly patients with CKD. This review aims to address these unsolved issues by delineating updated mechanisms of renal senescence and summarizing recent findings on key clinical aspects of CKD in the elderly. Challenges and obstacles in caring for older people with CKD are discussed, with an emphasis on modification of risk factors, prevention of acute kidney injury, stabilization of progression and decision on dialysis initiation.
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Affiliation(s)
- Yu-Hsiang Chou
- 1Department of Internal Medicine, National Taiwan University Hospital Jin-Shan Branch, New Taipei City 20844, Taiwan.,2Renal Division, Department of Internal Medicine, and
| | - Yung-Ming Chen
- 2Renal Division, Department of Internal Medicine, and.,3Department of Geriatrics and Gerontology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taiwan
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15
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Shi D, Han T, Chu X, Lu H, Yang X, Zi T, Zhao Y, Wang X, Liu Z, Ruan J, Liu X, Ning H, Wang M, Tian Z, Wei W, Sun Y, Li Y, Guo R, Wang Y, Ling F, Guan Y, Shen D, Niu Y, Li Y, Sun C. An isocaloric moderately high-fat diet extends lifespan in male rats and Drosophila. Cell Metab 2021; 33:581-597.e9. [PMID: 33440166 DOI: 10.1016/j.cmet.2020.12.017] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 10/13/2020] [Accepted: 12/21/2020] [Indexed: 12/26/2022]
Abstract
The health effect of dietary fat has been one of the most vexing issues in the field of nutrition. Few animal studies have examined the impact of high-fat diets on lifespan by controlling energy intake. In this study, we found that compared to a normal diet, an isocaloric moderately high-fat diet (IHF) significantly prolonged lifespan by decreasing the profiles of free fatty acids (FFAs) in serum and multiple tissues via downregulating FFA anabolism and upregulating catabolism pathways in rats and flies. Proteomics analysis in rats identified PPRC1 as a key protein that was significantly upregulated by nearly 2-fold by IHF, and among the FFAs, only palmitic acid (PA) was robustly and negatively associated with the expression of PPRC1. Using PPRC1 transgenic RNAi/overexpression flies and in vitro experiments, we demonstrated that IHF significantly reduced PA, which could upregulate PPRC1 through PPARG, resulting in improvements in oxidative stress and inflammation and prolonging the lifespan.
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Affiliation(s)
- Dan Shi
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - TianShu Han
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Xia Chu
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Huimin Lu
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Xue Yang
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - TianQi Zi
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - YanHe Zhao
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - XinYue Wang
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - ZhiPeng Liu
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - JingQi Ruan
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Xin Liu
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Hua Ning
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - MaoQing Wang
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Zhen Tian
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Wei Wei
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Yue Sun
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - YinLing Li
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Rui Guo
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Yu Wang
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Fan Ling
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Yue Guan
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China
| | - Da Shen
- Gene Regulatory Laboratory, School of Medicine, Tsinghua University, Beijing 100084, China
| | - YuCun Niu
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China.
| | - Ying Li
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China.
| | - ChangHao Sun
- National Key Discipline Laboratory, Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, P.R. China.
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16
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Schmeisser S, Li S, Bouchard B, Ruiz M, Des Rosiers C, Roy R. Muscle-Specific Lipid Hydrolysis Prolongs Lifespan through Global Lipidomic Remodeling. Cell Rep 2020; 29:4540-4552.e8. [PMID: 31875559 DOI: 10.1016/j.celrep.2019.11.090] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 09/20/2019] [Accepted: 11/21/2019] [Indexed: 12/20/2022] Open
Abstract
A growing body of evidence suggests that changes in fat metabolism may have a significant effect on lifespan. Accumulation of lipid deposits in non-adipose tissue appears to be critical for age-related pathologies and may also contribute to the aging process itself. We established a model of lipid storage in muscle cells of C. elegans to reveal a mechanism that promotes longevity non-cell-autonomously. Here, we describe how muscle-specific activation of adipose triglyceride lipase (ATGL) and the phospholipase A2 (PLA2) ortholog IPLA-7 collectively affect inter-tissular communication and systemic adaptation that requires the activity of AMP-dependent protein kinase (AMPK) and a highly conserved nuclear receptor outside of the muscle. Our data suggest that muscle-specific bioactive lipid signals, or "lipokines," are generated following triglyceride breakdown and that these signals impinge on a complex network of genes that modify the global lipidome, consequently extending the lifespan.
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Affiliation(s)
| | - Shaolin Li
- Department of Biology, McGill University, Montreal, QC H3A 1B1, Canada
| | - Bertrand Bouchard
- Montreal Heart Institute, Research Center, Montreal, QC H1T 1C8, Canada
| | - Matthieu Ruiz
- Montreal Heart Institute, Research Center, Montreal, QC H1T 1C8, Canada; Department of Medicine, University of Montreal, Montreal, QC H3T 1J4, Canada
| | - Christine Des Rosiers
- Montreal Heart Institute, Research Center, Montreal, QC H1T 1C8, Canada; Department of Nutrition, University of Montreal, Montreal, QC H2T 1A8, Canada
| | - Richard Roy
- Department of Biology, McGill University, Montreal, QC H3A 1B1, Canada.
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17
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Multifaceted deregulation of gene expression and protein synthesis with age. Proc Natl Acad Sci U S A 2020; 117:15581-15590. [PMID: 32576685 DOI: 10.1073/pnas.2001788117] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Protein synthesis represents a major metabolic activity of the cell. However, how it is affected by aging and how this in turn impacts cell function remains largely unexplored. To address this question, herein we characterized age-related changes in both the transcriptome and translatome of mouse tissues over the entire life span. We showed that the transcriptome changes govern those in the translatome and are associated with altered expression of genes involved in inflammation, extracellular matrix, and lipid metabolism. We also identified genes that may serve as candidate biomarkers of aging. At the translational level, we uncovered sustained down-regulation of a set of 5'-terminal oligopyrimidine (5'-TOP) transcripts encoding protein synthesis and ribosome biogenesis machinery and regulated by the mTOR pathway. For many of them, ribosome occupancy dropped twofold or even more. Moreover, with age, ribosome coverage gradually decreased in the vicinity of start codons and increased near stop codons, revealing complex age-related changes in the translation process. Taken together, our results reveal systematic and multidimensional deregulation of protein synthesis, showing how this major cellular process declines with age.
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18
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Brd2 haploinsufficiency extends lifespan and healthspan in C57B6/J mice. PLoS One 2020; 15:e0234910. [PMID: 32559200 PMCID: PMC7304595 DOI: 10.1371/journal.pone.0234910] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 06/04/2020] [Indexed: 11/19/2022] Open
Abstract
Aging in mammals is the gradual decline of an organism's physical, mental, and physiological capacity. Aging leads to increased risk for disease and eventually to death. Here, we show that Brd2 haploinsufficiency (Brd2+/-) extends lifespan and increases healthspan in C57B6/J mice. In Brd2+/- mice, longevity is increased by 23% (p<0.0001), and, relative to wildtype animals (Brd2+/+), cancer incidence is reduced by 43% (p<0.001). In addition, relative to age-matched wildtype mice, Brd2 heterozygotes show healthier aging including: improved grooming, extended period of fertility, and lack of age-related decline in kidney function and morphology. Our data support a role for haploinsufficiency of Brd2 in promoting healthy aging. We hypothesize that Brd2 affects aging by protecting against the accumulation of molecular and cellular damage. Given the recent advances in the development of BET inhibitors, our research provides impetus to test drugs that target BRD2 as a way to understand and treat/prevent age-related diseases.
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19
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Sinha RA, Rajak S, Singh BK, Yen PM. Hepatic Lipid Catabolism via PPARα-Lysosomal Crosstalk. Int J Mol Sci 2020; 21:ijms21072391. [PMID: 32244266 PMCID: PMC7170715 DOI: 10.3390/ijms21072391] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 03/01/2020] [Accepted: 03/02/2020] [Indexed: 12/13/2022] Open
Abstract
Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors which belong to the nuclear hormone receptor superfamily. They regulate key aspects of energy metabolism within cells. Recently, PPARα has been implicated in the regulation of autophagy-lysosomal function, which plays a key role in cellular energy metabolism. PPARα transcriptionally upregulates several genes involved in the autophagy-lysosomal degradative pathway that participates in lipolysis of triglycerides within the hepatocytes. Interestingly, a reciprocal regulation of PPARα nuclear action by autophagy-lysosomal activity also exists with implications in lipid metabolism. This review succinctly discusses the unique relationship between PPARα nuclear action and lysosomal activity and explores its impact on hepatic lipid homeostasis under pathological conditions such as non-alcoholic fatty liver disease (NAFLD).
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Affiliation(s)
- Rohit A. Sinha
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India;
- Correspondence: or
| | - Sangam Rajak
- Department of Endocrinology, Sanjay Gandhi Postgraduate Institute of Medical Sciences, Lucknow 226014, India;
| | - Brijesh K. Singh
- Program of Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, 8 College Road, Singapore 169587, Singapore (P.M.Y.)
| | - Paul M. Yen
- Program of Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, 8 College Road, Singapore 169587, Singapore (P.M.Y.)
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20
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Kim EN, Lim JH, Kim MY, Ban TH, Jang IA, Yoon HE, Park CW, Chang YS, Choi BS. Resveratrol, an Nrf2 activator, ameliorates aging-related progressive renal injury. Aging (Albany NY) 2019; 10:83-99. [PMID: 29326403 PMCID: PMC5811244 DOI: 10.18632/aging.101361] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 01/07/2018] [Indexed: 01/08/2023]
Abstract
Background. Two important issues in the aging kidney are mitochondrial dysfunction and oxidative stress. An Nrf2 activator, resveratrol, is known to have various effects. Resveratrol may prevent inflammation and oxidative stress by activating Nrf2 and SIRT1 signaling. We examined whether resveratrol could potentially ameliorate the cellular condition, such as renal injury due to cellular oxidative stress and mitochondrial dysfunction caused by aging. Methods. Male 18-month-old C57BL/6 mice were used. Resveratrol (40 mg/kg) was administered to aged mice for 6 months. We compared histological changes, oxidative stress, and aging-related protein expression in the kidney between the resveratrol-treated group (RSV) and the control group (cont). We performed experiments using small-interfering RNAs (siRNAs) for Nrf2 and SIRT1 in cultured HK2 cells. Results. Resveratrol improved renal function, proteinuria, histological changes and inflammation in aging mice. Also, expression of Nrf2-HO-1-NOQ-1 signaling and SIRT1-AMPK-PGC-1α signaling was increased in the RSV group. Transfection with Nrf2 and SIRT1 siRNA prevented resveratrol-induced anti-oxidative effect in HK2 cells in media treated with H2O2. Conclusions. Activation of the Nrf2 and SIRT1 signaling pathways ameliorated oxidative stress and mitochondrial dysfunction. Pharmacological targeting of Nrf2 signaling molecules may reduce the pathologic changes of aging in the kidney.
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Affiliation(s)
- Eun Nim Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hee Lim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Min Young Kim
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Tae Hyun Ban
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - In-Ae Jang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hye Eun Yoon
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Internal Medicine, Incheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Cheol Whee Park
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoon Sik Chang
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Internal Medicine, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bum Soon Choi
- Division of Nephrology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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21
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Species comparison of liver proteomes reveals links to naked mole-rat longevity and human aging. BMC Biol 2018; 16:82. [PMID: 30068331 PMCID: PMC6090990 DOI: 10.1186/s12915-018-0547-y] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 06/28/2018] [Indexed: 12/04/2022] Open
Abstract
Background Mammals display a wide range of variation in their lifespan. Investigating the molecular networks that distinguish long- from short-lived species has proven useful to identify determinants of longevity. Here, we compared the livers of young and old long-lived naked mole-rats (NMRs) and the phylogenetically closely related, shorter-lived, guinea pigs using an integrated omics approach. Results We found that NMR livers display a unique expression pattern of mitochondrial proteins that results in distinct metabolic features of their mitochondria. For instance, we observed a generally reduced respiration rate associated with lower protein levels of respiratory chain components, particularly complex I, and increased capacity to utilize fatty acids. Interestingly, we show that the same molecular networks are affected during aging in both NMRs and humans, supporting a direct link to the extraordinary longevity of both species. Finally, we identified a novel detoxification pathway linked to longevity and validated it experimentally in the nematode Caenorhabditis elegans. Conclusions Our work demonstrates the benefits of integrating proteomic and transcriptomic data to perform cross-species comparisons of longevity-associated networks. Using a multispecies approach, we show at the molecular level that livers of NMRs display progressive age-dependent changes that recapitulate typical signatures of aging despite the negligible senescence and extraordinary longevity of these rodents. Electronic supplementary material The online version of this article (10.1186/s12915-018-0547-y) contains supplementary material, which is available to authorized users.
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22
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An aPPARent Functional Consequence in Skeletal Muscle Physiology via Peroxisome Proliferator-Activated Receptors. Int J Mol Sci 2018; 19:ijms19051425. [PMID: 29747466 PMCID: PMC5983589 DOI: 10.3390/ijms19051425] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 05/05/2018] [Accepted: 05/08/2018] [Indexed: 12/12/2022] Open
Abstract
Skeletal muscle comprises 30–40% of the total body mass and plays a central role in energy homeostasis in the body. The deregulation of energy homeostasis is a common underlying characteristic of metabolic syndrome. Over the past decades, peroxisome proliferator-activated receptors (PPARs) have been shown to play critical regulatory roles in skeletal muscle. The three family members of PPAR have overlapping roles that contribute to the myriad of processes in skeletal muscle. This review aims to provide an overview of the functions of different PPAR members in energy homeostasis as well as during skeletal muscle metabolic disorders, with a particular focus on human and relevant mouse model studies.
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23
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Kim EN, Lim JH, Kim MY, Kim HW, Park CW, Chang YS, Choi BS. PPARα agonist, fenofibrate, ameliorates age-related renal injury. Exp Gerontol 2016; 81:42-50. [PMID: 27130813 DOI: 10.1016/j.exger.2016.04.021] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Revised: 02/01/2016] [Accepted: 04/25/2016] [Indexed: 11/29/2022]
Abstract
The kidney ages quickly compared with other organs. Expression of senescence markers reflects changes in the energy metabolism in the kidney. Two important issues in aging are mitochondrial dysfunction and oxidative stress. Peroxisome proliferator-activated receptor α (PPARα) is a member of the ligand-activated nuclear receptor superfamily. PPARα plays a major role as a transcription factor that regulates the expression of genes involved in various processes. In this study, 18-month-old male C57BL/6 mice were divided into two groups, the control group (n=7) and the fenofibrate-treated group (n=7) was fed the normal chow plus fenofibrate for 6months. The PPARα agonist, fenofibrate, improved renal function, proteinuria, histological change (glomerulosclerosis and tubular interstitial fibrosis), inflammation, and apoptosis in aging mice. This protective effect against age-related renal injury occurred through the activation of AMPK and SIRT1 signaling. The activation of AMPK and SIRT1 allowed for the concurrent deacetylation and phosphorylation of their target molecules and decreased the kidney's susceptibility to age-related changes. Activation of the AMPK-FOXO3a and AMPK-PGC-1α signaling pathways ameliorated oxidative stress and mitochondrial dysfunction. Our results suggest that activation of PPARα and AMPK-SIRT1 signaling may have protective effects against age-related renal injury. Pharmacological targeting of PPARα and AMPK-SIRT1 signaling molecules may prevent or attenuate age-related pathological changes in the kidney.
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Affiliation(s)
- Eun Nim Kim
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ji Hee Lim
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Min Young Kim
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyung Wook Kim
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Cheol Whee Park
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Yoon Sik Chang
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bum Soon Choi
- Division of Nephrology, Department of Internal, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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24
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Wege N, Schutkowski A, Boenn M, Bialek J, Schlitt A, Noack F, Grosse I, Stangl GI. Men and women differ in their diurnal expression of monocyte peroxisome proliferator-activated receptor-α in the fed but not in the fasted state. FASEB J 2015; 29:2905-11. [PMID: 25825462 DOI: 10.1096/fj.14-267575] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 03/04/2015] [Indexed: 12/16/2023]
Abstract
Peroxisome proliferator-activated receptor-α (PPARα) plays a pivotal role in regulating metabolic response to fasting and is an inhibitor of inflammatory pathways in immune cells. It represents a therapeutic target for treatment of several diseases, mainly hyperlipidemia. To shed light on PPARα expression changes in response to fasting, young healthy male and female volunteers were fed or fasted for 24 hours. Monocytes were analyzed every 2 hours to compile both profiles of mRNA and protein expression of PPARα and its interactive partner, the circadian pacemaker brain and muscle aryl hydrocarbon receptor nuclear translocator like-1 (BMAL1). We found that women change their diurnal expression profiles of PPARα and BMAL1 when switching from the fed to the fasted state, whereas men do not. Interestingly, the PPARα and BMAL1 profiles of men and women in the fed state are different, whereas the profiles in the fasted state are virtually identical. The finding of diametrically opposite responses of male and female PPARα expression in the fed state might have practical implication in human medicine as PPARα activators like fibrates are used for the therapy of chronic lymphocytic leukemia, microvascular complications in diabetes, and kidney diseases.
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Affiliation(s)
- Nicole Wege
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Alexandra Schutkowski
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Markus Boenn
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Joanna Bialek
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Axel Schlitt
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Frank Noack
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Ivo Grosse
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
| | - Gabriele I Stangl
- *Institute of Agricultural and Nutritional Sciences, Institute of Computer Science, and University Clinic Halle (Saale), Martin Luther University Halle-Wittenberg, Halle, Germany; Department of Soil Ecology, UFZ Helmholtz Centre for Environmental Research, Halle, Germany; Paracelsus Harz Clinic Bad Suderode, Quedlinburg, Germany; and German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig, Leipzig, Germany
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Yuan HF, Niu XL, Gao DF, Hao GH, Song AQ, Wei J. Expression of p-PPARγ in the aging thoracic aorta of spontaneously hypertensive rat and inhibitory effect of rosiglitazone. Asian Pac J Trop Biomed 2014. [DOI: 10.12980/apjtb.4.201414b416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022] Open
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Hasamnis A, Kumar A. A clinical update on peroxisome proliferator-activated receptors. ACTA ACUST UNITED AC 2010. [DOI: 10.4103/0975-8453.75075] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Argmann C, Dobrin R, Heikkinen S, Auburtin A, Pouilly L, Cock TA, Koutnikova H, Zhu J, Schadt EE, Auwerx J. Ppargamma2 is a key driver of longevity in the mouse. PLoS Genet 2009; 5:e1000752. [PMID: 19997628 PMCID: PMC2780700 DOI: 10.1371/journal.pgen.1000752] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2009] [Accepted: 11/04/2009] [Indexed: 11/19/2022] Open
Abstract
Aging involves a progressive physiological remodeling that is controlled by both genetic and environmental factors. Many of these factors impact also on white adipose tissue (WAT), which has been shown to be a determinant of lifespan. Interrogating a transcriptional network for predicted causal regulatory interactions in a collection of mouse WAT from F2 crosses with a seed set of 60 known longevity genes, we identified a novel transcriptional subnetwork of 742 genes which represent thus-far-unknown longevity genes. Within this subnetwork, one gene was Pparg (Nr1c3), an adipose-enriched nuclear receptor previously not associated with longevity. In silico, both the PPAR signaling pathway and the transcriptional signature of Pparγ agonist rosiglitazone overlapped with the longevity subnetwork, while in vivo, lowered expression of Pparg reduced lifespan in both the lipodystrophic Pparg1/2-hypomorphic and the Pparg2-deficient mice. These results establish Pparγ2 as one of the determinants of longevity and suggest that lifespan may be rather determined by a purposeful genetic program than a random process. The progression of aging is controlled by both genetic and environmental factors. Many of these factors are present also in adipose tissue, which itself has been shown to determine lifespan. Applying advanced bioinformatics methods on a large mouse gene expression data set, we identified Pparg (Nr1c3), an important metabolic controller that regulates the expression of many other genes particularly in adipose tissue, to be associated with longevity. This association was verified in experimental mouse models where the lowered expression of Pparg reduced lifespan. In addition to Pparg, our analysis identified >700 potential novel aging genes in mouse adipose tissue. More generally, these findings suggest that lifespan may not be a random process but controlled by a purposeful genetic program.
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Affiliation(s)
- Carmen Argmann
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/Université Louis Pasteur, Illkirch, France
| | - Radu Dobrin
- Rosetta Inpharmatics, Seattle, Washington, United States of America
| | - Sami Heikkinen
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/Université Louis Pasteur, Illkirch, France
- A. I. Virtanen Institute for Molecular Sciences, University of Kuopio, Kuopio, Finland
| | | | | | - Terrie-Anne Cock
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/Université Louis Pasteur, Illkirch, France
| | | | - Jun Zhu
- Rosetta Inpharmatics, Seattle, Washington, United States of America
| | - Eric E. Schadt
- Rosetta Inpharmatics, Seattle, Washington, United States of America
| | - Johan Auwerx
- Institut de Génétique et de Biologie Moléculaire et Cellulaire, CNRS/INSERM/Université Louis Pasteur, Illkirch, France
- Institut Clinique de la Souris, Illkirch, France
- Ecole polytechnique Fédérale de Lausanne, Lausanne, Switzerland
- * E-mail:
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Abstract
Peroxisome proliferator-activated receptors (PPARs) belong to the nuclear hormone-receptor superfamily. Originally cloned in 1990, PPARs were found to be mediators of pharmacologic agents that induce hepatocyte peroxisome proliferation. PPARs also are expressed in cells of the cardiovascular system. PPAR gamma appears to be highly expressed during atherosclerotic lesion formation, suggesting that increased PPAR gamma expression may be a vascular compensatory response. Also, ligand-activated PPAR gamma decreases the inflammatory response in cardiovascular cells, particularly in endothelial cells. PPAR alpha, similar to PPAR gamma, also has pleiotropic effects in the cardiovascular system, including antiinflammatory and antiatherosclerotic properties. PPAR alpha activation inhibits vascular smooth muscle proinflammatory responses, attenuating the development of atherosclerosis. However, PPAR delta overexpression may lead to elevated macrophage inflammation and atherosclerosis. Conversely, PPAR delta ligands are shown to attenuate the pathogenesis of atherosclerosis by improving endothelial cell proliferation and survival while decreasing endothelial cell inflammation and vascular smooth muscle cell proliferation. Furthermore, the administration of PPAR ligands in the form of TZDs and fibrates has been disappointing in terms of markedly reducing cardiovascular events in the clinical setting. Therefore, a better understanding of PPAR-dependent and -independent signaling will provide the foundation for future research on the role of PPARs in human cardiovascular biology.
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Affiliation(s)
- Milton Hamblin
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, Michigan 48109, USA
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Jeong S, Chae K, Jung YS, Rho YH, Lee J, Ha J, Yoon KH, Kim GC, Oh KS, Shin SS, Yoon M. The Korean traditional medicine Gyeongshingangjeehwan inhibits obesity through the regulation of leptin and PPARalpha action in OLETF rats. JOURNAL OF ETHNOPHARMACOLOGY 2008; 119:245-251. [PMID: 18674606 DOI: 10.1016/j.jep.2008.06.037] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2008] [Revised: 04/16/2008] [Accepted: 06/27/2008] [Indexed: 05/26/2023]
Abstract
Gyeongshingangjeehwan (GGEx), which comprises Liriope platyphylla F.T. Wang & T. Tang (Liliaceae), Platycodongrandiflorum A. DC. (Campanulaceae), Schisandrachinensis K. Koch (Magnoliaceae), and Ephedra sinica Stapf (Ephedraceae), has traditionally been used as an anti-obesity drug in Korean local clinics, although there is no evidence concerning the scientific analyses of its effects and mechanism(s) of action. Thus, we investigated the effects of GGEx on obesity, as well as the mechanism by which GGEx functions, in Otsuka Long-Evans Tokushima Fatty (OLETF) male rats. Compared with obese OLETF control rats, administration of GGEx for 8 weeks significantly decreased food intake and plasma leptin levels as well as body weight gain and abdominal fat in OLETF rats. GGEx treatment not only decreased circulating triglycerides, but also inhibited lipid accumulation in the liver. GGEx increased the hepatic mRNA levels of PPARalpha target genes responsible for fatty acid beta-oxidation. Consistent with the in vivo data, GGEx elevated PPARalpha reporter gene expression in NMu2Li liver cells. These results suggest that GGEx may effectively prevent obesity and hypertriglyceridemia in part through the inhibition of feeding and the activation of hepatic PPARalpha.
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Affiliation(s)
- Sunhyo Jeong
- Department of Life Sciences, Mokwon University, Taejon 302-729, Republic of Korea
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