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Bordini M, Wang Z, Soglia F, Petracci M, Schmidt CJ, Abasht B. RNA-sequencing revisited data shed new light on wooden breast myopathy. Poult Sci 2024; 103:103902. [PMID: 38908127 PMCID: PMC11246058 DOI: 10.1016/j.psj.2024.103902] [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: 02/20/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/24/2024] Open
Abstract
Wooden Breast (WB) abnormality represents one of the major challenges that the poultry industry has faced in the last 10 years. Despite the enormous progress in understanding the mechanisms underlying WB, the precise initial causes remain to be clarified. In this scenario, the present research is intended to characterize the gene expression profiles of broiler Pectoralis major muscles affected by WB, comparing them to the unaffected counterpart, to provide new insights into the biological mechanisms underlying this defect and potentially identifying novel genes likely involved in its occurrence. To this purpose, data obtained in a previous study through the RNA-sequencing technology have been used to identify differentially expressed genes (DEGs) between 6 affected and 5 unaffected broilers' breast muscles, by using the newest reference genome assembly for Gallus gallus (GRCg7b). Also, to deeply investigate molecular and biological pathways involved in the WB progression, pathways analyses have been performed. The results achieved through the differential gene expression analysis mainly evidenced the downregulation of glycogen metabolic processes, gluconeogenesis, and tricarboxylic acid cycle in WB muscles, thus corroborating the evidence of a dysregulated energy metabolism characterizing breasts affected by this abnormality. Also, genes related to hypertrophic muscle growth have been identified as differentially expressed (e.g., WFIKKN1). Together with that, a downregulation of genes involved in mitochondrial biogenesis and functionality has been detected. Among them, PPARGC1A and PPARGC1B chicken genes are particularly noteworthy. These genes not only have essential roles in regulating mitochondrial biogenesis but also play pivotal roles in maintaining glucose and energy homeostasis. In view of that, their downregulation in WB-affected muscle may be considered as potentially related to both the mitochondrial dysfunction and altered glucose metabolism in WB muscles, and their key involvement in the molecular alterations characterizing this muscular abnormality might be hypothesized.
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Affiliation(s)
- Martina Bordini
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Cesena, Italy
| | - Ziqing Wang
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - Francesca Soglia
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Cesena, Italy
| | - Massimiliano Petracci
- Department of Agricultural and Food Sciences, Alma Mater Studiorum - University of Bologna, Cesena, Italy.
| | - Carl J Schmidt
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
| | - Behnam Abasht
- Department of Animal and Food Sciences, University of Delaware, Newark, DE, USA
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2
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Park S, Cha HN, Shin MG, Park S, Kim Y, Kim MS, Shin KH, Thoudam T, Lee EJ, Wolfe RR, Dan J, Koh JH, Kim IY, Choi I, Lee IK, Sung HK, Park SY. Inhibitory Regulation of FOXO1 in PPARδ Expression Drives Mitochondrial Dysfunction and Insulin Resistance. Diabetes 2024; 73:1084-1098. [PMID: 38656552 DOI: 10.2337/db23-0432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 04/09/2024] [Indexed: 04/26/2024]
Abstract
Forkhead box O1 (FOXO1) regulates muscle growth, but the metabolic role of FOXO1 in skeletal muscle and its mechanisms remain unclear. To explore the metabolic role of FOXO1 in skeletal muscle, we generated skeletal muscle-specific Foxo1 inducible knockout (mFOXO1 iKO) mice and fed them a high-fat diet to induce obesity. We measured insulin sensitivity, fatty acid oxidation, mitochondrial function, and exercise capacity in obese mFOXO1 iKO mice and assessed the correlation between FOXO1 and mitochondria-related protein in the skeletal muscle of patients with diabetes. Obese mFOXO1 iKO mice exhibited improved mitochondrial respiratory capacity, which was followed by attenuated insulin resistance, enhanced fatty acid oxidation, and improved skeletal muscle exercise capacity. Transcriptional inhibition of FOXO1 in peroxisome proliferator-activated receptor δ (PPARδ) expression was confirmed in skeletal muscle, and deletion of PPARδ abolished the beneficial effects of FOXO1 deficiency. FOXO1 protein levels were higher in the skeletal muscle of patients with diabetes and negatively correlated with PPARδ and electron transport chain protein levels. These findings highlight FOXO1 as a new repressor in PPARδ gene expression in skeletal muscle and suggest that FOXO1 links insulin resistance and mitochondrial dysfunction in skeletal muscle via PPARδ. ARTICLE HIGHLIGHTS
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Affiliation(s)
- Soyoung Park
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
- Senotherapy-Based Metabolic Diseases Control Research Center, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Hye-Na Cha
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
- Senotherapy-Based Metabolic Diseases Control Research Center, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Min-Gyeong Shin
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
| | - Sanghee Park
- Department of Molecular Medicine, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Yeongmin Kim
- Department of Health Sciences and Technology, Gachon Advanced Institute for Health Sciences and Technology, Gachon University, Incheon, Republic of Korea
| | - Min-Seob Kim
- Department of Fundamental Environment Research, Environmental Measurement and Analysis Center, National Institute of Environmental Research, Incheon, Republic of Korea
| | - Kyung-Hoon Shin
- Department of Marine Sciences and Convergent Technology, Hanyang University, Ansan, Republic of Korea
| | - Themis Thoudam
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Republic of Korea
| | - Eun Ju Lee
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
| | - Robert R Wolfe
- Department of Geriatrics, University of Arkansas for Medical Sciences, Little Rock, AR
| | - Jinmyoung Dan
- Department of Orthopedic Surgery, College of Medicine, CHA University, Gumi, Republic of Korea
| | - Jin-Ho Koh
- Department of Convergence Medicine, Wonju College of Medicine, Yonsei University, Wonju, Republic of Korea
| | - Il-Young Kim
- Department of Molecular Medicine, College of Medicine, Gachon University, Incheon, Republic of Korea
| | - Inho Choi
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan, Republic of Korea
| | - In-Kyu Lee
- Research Institute of Aging and Metabolism, Kyungpook National University, Daegu, Republic of Korea
- Department of Internal Medicine, School of Medicine, Kyungpook National University, Kyungpook National University Hospital, Daegu, Republic of Korea
| | - Hoon-Ki Sung
- The Hospital for Sick Children Research Institute & Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - So-Young Park
- Department of Physiology, College of Medicine, Yeungnam University, Daegu, Republic of Korea
- Senotherapy-Based Metabolic Diseases Control Research Center, College of Medicine, Yeungnam University, Daegu, Republic of Korea
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3
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Cheng J, Yang S, Shou D, Chen J, Li Y, Huang C, Chen H, Zhou Y. FOXO1 induced fatty acid oxidation in hepatic cells by targeting ALDH1L2. J Gastroenterol Hepatol 2024. [PMID: 38923573 DOI: 10.1111/jgh.16662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 05/28/2024] [Accepted: 06/10/2024] [Indexed: 06/28/2024]
Abstract
BACKGROUND AND AIM Lipid metabolism disorder is the primary feature of numerous refractory chronic diseases. Fatty acid oxidation, an essential aerobic biological process, is closely related to the progression of NAFLD. The forkhead transcription factor FOXO1 has been reported to play an important role in lipid metabolism. However, the molecular mechanism through which FOXO1 regulates fatty acid oxidation remains unclear. METHODS Transcriptomic analysis was performed to examine the cellular expression profile to determine the functional role of FOXO1 in HepG2 cells with palmitic acid (PA)-induced lipid accumulation. FOXO1-binding motifs at the promoter region of aldehyde dehydrogenase 1 family member L2 (ALDH1L2) were predicted via bioinformatic analysis and confirmed via luciferase reporter assay. Overexpression of ALDH1L2 was induced to recover the impaired fatty acid oxidation in FOXO1-knockout cells. RESULTS Knockout of FOXO1 aggravated lipid deposition in hepatic cells. Transcriptomic profiling revealed that knockout of FOXO1 increased the expression of genes associated with fatty acid synthesis but decreased the expression of carnitine palmitoyltransferase1a (CPT1α) and adipose triglyceride lipase (ATGL), which contribute to fatty acid oxidation. Mechanistically, FOXO1 was identified as a transcription factor of ALDH1L2. Knockout of FOXO1 significantly decreased the protein expression of ALDH1L2 and CPT1α in vitro and in vivo. Furthermore, overexpression of ALDH1L2 restored fatty acid oxidation in FOXO1-knockout cells. CONCLUSION The findings of this study indicate that FOXO1 modulates fatty acid oxidation by targeting ALDH1L2.
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Affiliation(s)
- Jiemin Cheng
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Siqi Yang
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Diwen Shou
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Jiawei Chen
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Yongqiang Li
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Chen Huang
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Huiting Chen
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
| | - Yongjian Zhou
- Department of Gastroenterology and Hepatology, Second Affiliated Hospital, School of Medicine, South China University of Technology, Guangzhou, China
- Department of Gastroenterology and Hepatology, Guangzhou Digestive Disease Center, Guangzhou First People's Hospital, Guangzhou, China
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4
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Jin XS, Chen LX, Ji TT, Li RZ. SERPINH1 promoted the proliferation and metastasis of colorectal cancer by activating PI3K/Akt/mTOR signaling pathway. World J Gastrointest Oncol 2024; 16:1890-1907. [PMID: 38764814 PMCID: PMC11099439 DOI: 10.4251/wjgo.v16.i5.1890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/10/2024] [Accepted: 03/14/2024] [Indexed: 05/09/2024] Open
Abstract
BACKGROUND Serpin peptidase inhibitor clade H member 1 (SERPINH1) was initially recognized as an oncogene implicated in various human malignancies. Nevertheless, the clinical relevance and functional implications of SERPINH1 in colorectal cancer (CRC) remain largely elusive. AIM To investigate the effects of SERPINH1 on CRC cells and its specific mechanism. METHODS Quantitative real-time polymerase chain reaction, western blotting analysis, The Cancer Genome Atlas data mining and immunohistochemistry were employed to examine SERPINH1 expression in CRC cell lines and tissues. A series of in-vitro assays were performed to demonstrate the function of SERPINH1 and its possible mechanisms in CRC. RESULTS SERPINH1 demonstrated elevated expression levels in both CRC cells and tissues, manifested at both mRNA and protein tiers. Elevated SERPINH1 levels correlated closely with advanced T stage, lymph node involvement, and distant metastasis, exhibiting a significant association with poorer overall survival among CRC patients. Subsequent investigations unveiled that SERPINH1 overexpression notably bolstered CRC cell proliferation, invasion, and migration in vitro, while conversely, SERPINH1 knockdown elicited the opposite effects. Gene set enrichment analysis underscored a correlation between SERPINH1 upregulation and genes associated with cell cycle regulation. Our findings underscored the capacity of heightened SERPINH1 levels to expedite G1/S phase cell cycle progression via phosphatidylinositol 3-kinase/AKT/mechanistic target of rapamycin pathway activation, thereby facilitating CRC cell invasion and migration. CONCLUSION These findings imply a crucial involvement of SERPINH1 in the advancement and escalation of CRC, potentially positioning it as a novel candidate for prognostic assessment and therapeutic intervention in CRC management.
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Affiliation(s)
- Xiao-Sheng Jin
- Department of Gastroenterology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian 325000, Zhejiang Province, China
| | - Lu-Xi Chen
- Department of Gastroenterology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian 325000, Zhejiang Province, China
| | - Ting-Ting Ji
- Department of Gastroenterology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian 325000, Zhejiang Province, China
| | - Rong-Zhou Li
- Department of Gastroenterology, The Third Affiliated Hospital of Wenzhou Medical University, Ruian 325000, Zhejiang Province, China
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5
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Khor YS, Wong PF. MicroRNAs-associated with FOXO3 in cellular senescence and other stress responses. Biogerontology 2024; 25:23-51. [PMID: 37646881 DOI: 10.1007/s10522-023-10059-6] [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: 06/09/2023] [Accepted: 08/01/2023] [Indexed: 09/01/2023]
Abstract
FOXO3 is a member of the FOXO transcription factor family and is known for regulating cellular survival in response to stress caused by various external and biological stimuli. FOXO3 decides cell fate by modulating cellular senescence, apoptosis and autophagy by transcriptional regulation of genes involved in DNA damage response and oxidative stress resistance. These cellular processes are tightly regulated physiologically, with FOXO3 acting as the hub that integrates signalling networks controlling them. The activity of FOXO3 is influenced by post-translational modifications, altering its subcellular localisation. In addition, FOXO3 can also be regulated directly or indirectly by microRNAs (miRNAs) or vice versa. This review discusses the involvement of various miRNAs in FOXO3-driven cellular responses such as senescence, apoptosis, autophagy, redox and inflammation defence. Given that these responses are linked and influence cell fate, a thorough understanding of the complex regulation by miRNAs would provide key information for developing therapeutic strategy and avoid unintended consequences caused by off-site targeting of FOXO3.
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Affiliation(s)
- Yi-Sheng Khor
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Wilayah Persekutuan Kuala Lumpur, Malaysia
| | - Pooi-Fong Wong
- Department of Pharmacology, Faculty of Medicine, Universiti Malaya, 50603, Wilayah Persekutuan Kuala Lumpur, Malaysia.
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6
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Lin LC, Liu ZY, Yang JJ, Zhao JY, Tao H. Lipid metabolism reprogramming in cardiac fibrosis. Trends Endocrinol Metab 2024; 35:164-175. [PMID: 37949734 DOI: 10.1016/j.tem.2023.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 10/11/2023] [Accepted: 10/11/2023] [Indexed: 11/12/2023]
Abstract
Cardiac fibrosis is a critical pathophysiological process that occurs with diverse types of cardiac injury. Lipids are the most important bioenergy substrates for maintaining optimal heart performance and act as second messengers to transduce signals within cardiac cells. However, lipid metabolism reprogramming is a double-edged sword in the regulation of cardiomyocyte homeostasis and heart function. Moreover, lipids can exert diverse effects on cardiac fibrosis through different signaling pathways. In this review, we provide a brief overview of aberrant cardiac lipid metabolism and recent progress in pharmacological research targeting lipid metabolism alterations in cardiac fibrosis.
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Affiliation(s)
- Li-Chan Lin
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Zhi-Yan Liu
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China
| | - Jing-Jing Yang
- Department of Clinical Pharmacology, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
| | - Jian-Yuan Zhao
- Institute for Developmental and Regenerative Cardiovascular Medicine, MOE-Shanghai Key Laboratory of Children's Environmental Health, Xinhua Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200092, China.
| | - Hui Tao
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China; Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Anhui Medical University, Hefei, 230601, China.
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7
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Rodriguez-Colman MJ, Dansen TB, Burgering BMT. FOXO transcription factors as mediators of stress adaptation. Nat Rev Mol Cell Biol 2024; 25:46-64. [PMID: 37710009 DOI: 10.1038/s41580-023-00649-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/01/2023] [Indexed: 09/16/2023]
Abstract
The forkhead box protein O (FOXO, consisting of FOXO1, FOXO3, FOXO4 and FOXO6) transcription factors are the mammalian orthologues of Caenorhabditis elegans DAF-16, which gained notoriety for its capability to double lifespan in the absence of daf-2 (the gene encoding the worm insulin receptor homologue). Since then, research has provided many mechanistic details on FOXO regulation and FOXO activity. Furthermore, conditional knockout experiments have provided a wealth of data as to how FOXOs control development and homeostasis at the organ and organism levels. The lifespan-extending capabilities of DAF-16/FOXO are highly correlated with their ability to induce stress response pathways. Exogenous and endogenous stress, such as cellular redox stress, are considered the main drivers of the functional decline that characterizes ageing. Functional decline often manifests as disease, and decrease in FOXO activity indeed negatively impacts on major age-related diseases such as cancer and diabetes. In this context, the main function of FOXOs is considered to preserve cellular and organismal homeostasis, through regulation of stress response pathways. Paradoxically, the same FOXO-mediated responses can also aid the survival of dysfunctional cells once these eventually emerge. This general property to control stress responses may underlie the complex and less-evident roles of FOXOs in human lifespan as opposed to model organisms such as C. elegans.
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Affiliation(s)
| | - Tobias B Dansen
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, Netherlands
| | - Boudewijn M T Burgering
- Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, Netherlands.
- Oncode Institute, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, Netherlands.
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8
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Song J, Duivenvoorde LPM, Grefte S, Kuda O, Martínez-Ramírez F, van der Stelt I, Mastorakou D, van Schothorst EM, Keijer J. Normobaric hypoxia shows enhanced FOXO1 signaling in obese mouse gastrocnemius muscle linked to metabolism and muscle structure and neuromuscular innervation. Pflugers Arch 2023; 475:1265-1281. [PMID: 37656229 PMCID: PMC10567817 DOI: 10.1007/s00424-023-02854-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/17/2023] [Accepted: 08/21/2023] [Indexed: 09/02/2023]
Abstract
Skeletal muscle relies on mitochondria for sustainable ATP production, which may be impacted by reduced oxygen availability (hypoxia). Compared with long-term hypoxia, the mechanistic in vivo response to acute hypoxia remains elusive. Therefore, we aimed to provide an integrated description of the Musculus gastrocnemius response to acute hypoxia. Fasted male C57BL/6JOlaHsd mice, fed a 40en% fat diet for six weeks, were exposed to 12% O2 normobaric hypoxia or normoxia (20.9% O2) for six hours (n = 12 per group). Whole-body energy metabolism and the transcriptome response of the M. gastrocnemius were analyzed and confirmed by acylcarnitine determination and Q-PCR. At the whole-body level, six hours of hypoxia reduced energy expenditure, increased blood glucose and tended to decreased the respiratory exchange ratio (RER). Whole-genome transcriptome analysis revealed upregulation of forkhead box-O (FOXO) signalling, including an increased expression of tribbles pseudokinase 3 (Trib3). Trib3 positively correlated with blood glucose levels. Upregulated carnitine palmitoyltransferase 1A negatively correlated with the RER, but the significantly increased in tissue C14-1, C16-0 and C18-1 acylcarnitines supported that β-oxidation was not regulated. The hypoxia-induced FOXO activation could also be connected to altered gene expression related to fiber-type switching, extracellular matrix remodeling, muscle differentiation and neuromuscular junction denervation. Our results suggest that a six-hour exposure of obese mice to 12% O2 normobaric hypoxia impacts M. gastrocnemius via FOXO1, initiating alterations that may contribute to muscle remodeling of which denervation is novel and warrants further investigation. The findings support an early role of hypoxia in tissue alterations in hypoxia-associated conditions such as aging and obesity.
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Affiliation(s)
- Jingyi Song
- Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands
| | | | - Sander Grefte
- Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands
| | - Ondrej Kuda
- Laboratory of Metabolism of Bioactive Lipids, Institute of Physiology, Czech Academy of Sciences, 14220, Prague 4, Czech Republic
| | - Felipe Martínez-Ramírez
- Laboratory of Metabolism of Bioactive Lipids, Institute of Physiology, Czech Academy of Sciences, 14220, Prague 4, Czech Republic
| | - Inge van der Stelt
- Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands
| | - Dimitra Mastorakou
- Laboratory of Metabolism of Bioactive Lipids, Institute of Physiology, Czech Academy of Sciences, 14220, Prague 4, Czech Republic
| | | | - Jaap Keijer
- Human and Animal Physiology, Wageningen University, Wageningen, The Netherlands.
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9
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Teaney NA, Cyr NE. FoxO1 as a tissue-specific therapeutic target for type 2 diabetes. Front Endocrinol (Lausanne) 2023; 14:1286838. [PMID: 37941908 PMCID: PMC10629996 DOI: 10.3389/fendo.2023.1286838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/06/2023] [Indexed: 11/10/2023] Open
Abstract
Forkhead box O (FoxO) proteins are transcription factors that mediate many aspects of physiology and thus have been targeted as therapeutics for several diseases including metabolic disorders such as type 2 diabetes mellitus (T2D). The role of FoxO1 in metabolism has been well studied, but recently FoxO1's potential for diabetes prevention and therapy has been debated. For example, studies have shown that increased FoxO1 activity in certain tissue types contributes to T2D pathology, symptoms, and comorbidities, yet in other tissue types elevated FoxO1 has been reported to alleviate symptoms associated with diabetes. Furthermore, studies have reported opposite effects of active FoxO1 in the same tissue type. For example, in the liver, FoxO1 contributes to T2D by increasing hepatic glucose production. However, FoxO1 has been shown to either increase or decrease hepatic lipogenesis as well as adipogenesis in white adipose tissue. In skeletal muscle, FoxO1 reduces glucose uptake and oxidation, promotes lipid uptake and oxidation, and increases muscle atrophy. While many studies show that FoxO1 lowers pancreatic insulin production and secretion, others show the opposite, especially in response to oxidative stress and inflammation. Elevated FoxO1 in the hypothalamus increases the risk of developing T2D. However, increased FoxO1 may mitigate Alzheimer's disease, a neurodegenerative disease strongly associated with T2D. Conversely, accumulating evidence implicates increased FoxO1 with Parkinson's disease pathogenesis. Here we review FoxO1's actions in T2D conditions in metabolic tissues that abundantly express FoxO1 and highlight some of the current studies targeting FoxO1 for T2D treatment.
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Affiliation(s)
- Nicole A. Teaney
- Stonehill College, Neuroscience Program, Easton, MA, United States
| | - Nicole E. Cyr
- Stonehill College, Neuroscience Program, Easton, MA, United States
- Stonehill College, Department of Biology, Easton, MA, United States
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10
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Wang Z, Brannick E, Abasht B. Integrative transcriptomic and metabolomic analysis reveals alterations in energy metabolism and mitochondrial functionality in broiler chickens with wooden breast. Sci Rep 2023; 13:4747. [PMID: 36959331 PMCID: PMC10036619 DOI: 10.1038/s41598-023-31429-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 03/11/2023] [Indexed: 03/25/2023] Open
Abstract
This integrative study of transcriptomics and metabolomics aimed to improve our understanding of Wooden Breast myopathy (WB). Breast muscle samples from 8 WB affected and 8 unaffected male broiler chickens of 47 days of age were harvested for metabolite profiling. Among these 16 samples, 5 affected and 6 unaffected also underwent gene expression profiling. The Joint Pathway Analysis was applied on 119 metabolites and 3444 genes exhibiting differential abundance or expression between WB affected and unaffected chickens. Mitochondrial dysfunctions in WB was suggested by higher levels of monoacylglycerols and down-regulated genes involved in lipid production, fatty acid beta oxidation, and oxidative phosphorylation. Lower levels of carnosine and anserine, along with down-regulated carnosine synthase 1 suggested decreased carnosine synthesis and hence impaired antioxidant capacity in WB. Additionally, Weighted Gene Co-expression Network Analysis results indicated that abundance of inosine monophosphate, significantly lower in WB muscle, was correlated with mRNA expression levels of numerous genes related to focal adhesion, extracellular matrix and intercellular signaling, implying its function in connecting and possibly regulating multiple key biological pathways. Overall, this study showed not only the consistency between transcript and metabolite profiles, but also the potential in gaining further insights from analyzing multi-omics data.
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Affiliation(s)
- Ziqing Wang
- Department of Animal and Food Sciences, University of Delaware, Newark, Delaware, USA
| | - Erin Brannick
- Department of Animal and Food Sciences, University of Delaware, Newark, Delaware, USA
| | - Behnam Abasht
- Department of Animal and Food Sciences, University of Delaware, Newark, Delaware, USA.
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11
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Kostić M, Korićanac G, Tepavčević S, Stanišić J, Romić S, Ćulafić T, Ivković T, Stojiljković M. Low-Intensity Exercise Affects Cardiac Fatty Acid Oxidation by Increasing the Nuclear Content of PPARα, FOXO1, and Lipin1 in Fructose-Fed Rats. Metab Syndr Relat Disord 2023; 21:122-131. [PMID: 36625880 DOI: 10.1089/met.2022.0078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background and Aim: Excessive fructose consumption along with a sedentary lifestyle provokes metabolic disorders and cardiovascular diseases. Fructose overload causes cardiac insulin resistance and increases reliance on fatty acid (FA) uptake and catabolism. The cardiometabolic benefits of exercise training have long been appreciated. The goal of the presented study is to shed a new light to the preventive role of exercise training on cardiac lipid metabolism in fructose-fed rats. Methods: Male Wistar rats were divided into control (C), sedentary fructose (F), and exercised fructose (EF) groups. Fructose was given as a 10% fructose solution in drinking water for 9 weeks. Low-intensity exercise training was applied for 9 weeks. The protein expression and subcellular localization of Lipin1, peroxisome proliferator-activated receptor α (PPARα), and peroxisome proliferator-activated receptor-γ coactivator 1 α (PGC1) were analyzed in the heart using Western blot. Cardiac forkhead box transcription factor 1 (FOXO1) and sirtuin 1 (SIRT1) protein levels were also evaluated. Gene expression of long-chain acyl-CoA dehydrogenase was analyzed by quantitative polymerase chain reaction. Results: Exercise training has augmented the expression of main regulators of FA oxidation in the heart and achieves its effect by increasing the nuclear content of PPARα, Lipin1, and FOXO1 compared with the fructose group (P = 0.0422, P = 0.000045, P = 0.00958, respectively). In addition, Lipin1, FOXO1, and SIRT1 were increased in nuclear extract after exercise compared with the control group (P = 0.000043, P = 0.0417, P = 0.0329, respectively). In cardiac lysate, low-intensity exercise caused significantly increased protein level of PPARα, PGC1, FOXO1, and SIRT1 compared with control (P = 0.0377, P = 0.0275, P = 0.0096, P = 0.0282, respectively) and PGC1 level compared with the fructose group (P = 0.0417). Conclusion: The obtained results imply that the heart with a metabolic burden additionally relies on FA as an energy substrate after low-intensity running.
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Affiliation(s)
- Milan Kostić
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Goran Korićanac
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Snežana Tepavčević
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Jelena Stanišić
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Snježana Romić
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tijana Ćulafić
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Tamara Ivković
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
| | - Mojca Stojiljković
- Department for Molecular Biology and Endocrinology, "Vinča" Institute of Nuclear Sciences-National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
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12
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Karvinen S, Korhonen T, Sievänen T, Karppinen JE, Juppi H, Jakoaho V, Kujala UM, Laukkanen JA, Lehti M, Laakkonen EK. Extracellular vesicles and high-density lipoproteins: Exercise and oestrogen-responsive small RNA carriers. J Extracell Vesicles 2023; 12:e12308. [PMID: 36739598 PMCID: PMC9899444 DOI: 10.1002/jev2.12308] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 12/22/2022] [Accepted: 01/22/2023] [Indexed: 02/06/2023] Open
Abstract
Decreased systemic oestrogen levels (i.e., menopause) affect metabolic health. However, the detailed mechanisms underlying this process remain unclear. Both oestrogens and exercise have been shown to improve metabolic health, which may be partly mediated by circulating microRNA (c-miR) signalling. In recent years, extracellular vesicles (EV) have increased interest in the field of tissue crosstalk. However, in many studies on EV-carried miRs, the co-isolation of high-density lipoprotein (HDL) particles with EVs has not been considered, potentially affecting the results. Here, we demonstrate that EV and HDL particles have distinct small RNA (sRNA) content, including both host and nonhost sRNAs. Exercise caused an acute increase in relative miR abundancy in EVs, whereas in HDL particles, it caused an increase in transfer RNA-derived sRNA. Furthermore, we demonstrate that oestrogen-based hormonal therapy (HT) allows the acute exercise-induced miR-response to occur in both EV and HDL particles in postmenopausal women, while the response was absent in nonusers.
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Affiliation(s)
- Sira Karvinen
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Tia‐Marje Korhonen
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Tero Sievänen
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Jari E. Karppinen
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Hanna‐Kaarina Juppi
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Veera Jakoaho
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Urho M. Kujala
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Jari A. Laukkanen
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland,Institute of Clinical MedicineUniversity of Eastern FinlandKuopioFinland
| | - Maarit Lehti
- Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
| | - Eija K. Laakkonen
- Gerontology Research Center and Faculty of Sport and Health SciencesUniversity of JyväskyläJyväskyläFinland
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13
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Yu S, Wang G, Liao J, Shen X, Chen J, Chen X. Co-expression analysis of long non-coding RNAs and mRNAs involved in intramuscular fat deposition in Muchuan black-bone chicken. Br Poult Sci 2023. [PMID: 36622203 DOI: 10.1080/00071668.2022.2162370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The intramuscular fat (IMF) content in meat products is positively correlated with meat quality, making it an important consumer trait. Long non-coding RNAs (lncRNAs) play central roles in regulating various biological processes, but little is currently known about the mechanisms by which they regulate IMF deposition in chickens. This study sampled the breast muscles of chickens with high (H) and low (L) IMF content and constructed six small RNA libraries. High-throughput sequencing technology was used to profile the breast muscle transcriptome (lncRNA and mRNA) and to identify the differentially expressed lncRNAs (DELs) and mRNAs (DEGs) between the H and L groups. In total, 263 DELs (118 up-regulated and 145 down-regulated lncRNAs) and 443 DEGs (203 up-regulated and 240 down-regulated genes) were identified between the two groups. To analyse the DELs-DEGs interaction network, co-expression analysis was conducted to identify lncRNA-mRNA pairs. In total, 19,270 lncRNA/mRNA pairs were identified, including 16,398 significant correlation pairs that presented as positive and 2872 pairs that presented as negative. The lncRNA-mRNA network comprised 263 lncRNA nodes and 440 mRNA nodes. Pathway analysis, using the Kyoto Encyclopedia of Genes and Genomes, indicated that pathways associated with fat deposition and lipid metabolism such as the MAPK, PPAR, GnRH, ErbB and calcium signalling pathways, fatty acid elongation and fatty acid metabolism. Overall, the study identified potential candidate lncRNAs, genes and regulatory networks associated with chicken IMF deposition. These findings provide new insights to help clarify the regulatory mechanisms of IMF deposition in chickens which can be used to improve the IMF content in poultry.
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Affiliation(s)
- Shigang Yu
- Engineering Research Center of Sichuan Province Higher School of Local Chicken Breeds Industrialization in Southern Sichuan, College of Life Science, Leshan Normal University,Leshan, China
| | - Gang Wang
- Engineering Research Center of Sichuan Province Higher School of Local Chicken Breeds Industrialization in Southern Sichuan, College of Life Science, Leshan Normal University,Leshan, China
| | - Juan Liao
- Engineering Research Center of Sichuan Province Higher School of Local Chicken Breeds Industrialization in Southern Sichuan, College of Life Science, Leshan Normal University,Leshan, China
| | - Xuemei Shen
- Engineering Research Center of Sichuan Province Higher School of Local Chicken Breeds Industrialization in Southern Sichuan, College of Life Science, Leshan Normal University,Leshan, China
| | - Jia Chen
- Engineering Research Center of Sichuan Province Higher School of Local Chicken Breeds Industrialization in Southern Sichuan, College of Life Science, Leshan Normal University,Leshan, China
| | - Xianxin Chen
- Leshan Academy of Agricultural Sciences, Leshan, China
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14
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Oyabu M, Takigawa K, Mizutani S, Hatazawa Y, Fujita M, Ohira Y, Sugimoto T, Suzuki O, Tsuchiya K, Suganami T, Ogawa Y, Ishihara K, Miura S, Kamei Y. FOXO1 cooperates with C/EBPδ and ATF4 to regulate skeletal muscle atrophy transcriptional program during fasting. FASEB J 2022; 36:e22152. [DOI: 10.1096/fj.202101385rr] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/14/2022]
Affiliation(s)
- Mamoru Oyabu
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Kaho Takigawa
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Sako Mizutani
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Yukino Hatazawa
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Mariko Fujita
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Yuto Ohira
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Takumi Sugimoto
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
| | - Osamu Suzuki
- Laboratory of Animal Models for Human Diseases National Institutes of Biomedical Innovation, Health and Nutrition Osaka Japan
| | - Kyoichiro Tsuchiya
- Third Department of Internal Medicine Interdisciplinary Graduate School of Medicine and Engineering University of Yamanashi Yamanashi Japan
| | - Takayoshi Suganami
- Department of Molecular Medicine and Metabolism Research Institute of Environmental Medicine Nagoya University Nagoya Japan
| | - Yoshihiro Ogawa
- Department of Medicine and Bioregulatory Science Graduate School of Medical Sciences Kyushu University Fukuoka Japan
| | - Kengo Ishihara
- Department of Food Science and Human Nutrition Faculty of Agriculture Ryukoku University Shiga Japan
| | - Shinji Miura
- Graduate School of Nutritional and Environmental Sciences University of Shizuoka Shizuoka Japan
| | - Yasutomi Kamei
- Laboratory of Molecular Nutrition Graduate School of Life and Environmental Sciences Kyoto Prefectural University Kyoto Japan
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15
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Du S, Zheng H. Role of FoxO transcription factors in aging and age-related metabolic and neurodegenerative diseases. Cell Biosci 2021; 11:188. [PMID: 34727995 PMCID: PMC8561869 DOI: 10.1186/s13578-021-00700-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Accepted: 10/20/2021] [Indexed: 12/18/2022] Open
Abstract
Aging happens to all of us as we live. Thanks to the improved living standard and discovery of life-saving medicines, our life expectancy has increased substantially across the world in the past century. However, the rise in lifespan leads to unprecedented increases in both the number and the percentage of individuals 65 years and older, accompanied by the increased incidences of age-related diseases such as type 2 diabetes mellitus and Alzheimer’s disease. FoxO transcription factors are evolutionarily conserved molecules that play critical roles in diverse biological processes, in particular aging and metabolism. Their dysfunction is often found in the pathogenesis of many age-related diseases. Here, we summarize the signaling pathways and cellular functions of FoxO proteins. We also review the complex role of FoxO in aging and age-related diseases, with focus on type 2 diabetes and Alzheimer’s disease and discuss the possibility of FoxO as a molecular link between aging and disease risks.
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Affiliation(s)
- Shuqi Du
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA
| | - Hui Zheng
- Huffington Center on Aging, Baylor College of Medicine, Houston, TX, USA.
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16
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Salomão R, Neto IVDS, Ramos GV, Tibana RA, Durigan JQ, Pereira GB, Franco OL, Royer C, Neves FDAR, de Carvalho ACA, Nóbrega OT, Haddad R, Prestes J, Marqueti RDC. Paternal Resistance Exercise Modulates Skeletal Muscle Remodeling Pathways in Fathers and Male Offspring Submitted to a High-Fat Diet. Front Physiol 2021; 12:706128. [PMID: 34646148 PMCID: PMC8503191 DOI: 10.3389/fphys.2021.706128] [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: 05/06/2021] [Accepted: 09/02/2021] [Indexed: 11/24/2022] Open
Abstract
Although some studies have shown that a high-fat diet (HFD) adversely affects muscle extracellular matrix remodeling, the mechanisms involved in muscle trophism, inflammation, and adipogenesis have not been fully investigated. Thus, we investigated the effects of 8 weeks of paternal resistance training (RT) on gene and protein expression/activity of critical factors involved in muscle inflammation and remodeling of fathers and offspring (offspring exposed to standard chow or HFD). Animals were randomly distributed to constitute sedentary fathers (SF; n = 7; did not perform RT) or trained fathers (TF n = 7; performed RT), with offspring from mating with sedentary females. After birth, 28 male pups were divided into four groups (n = 7 per group): offspring from sedentary father submitted either to control diet (SFO-C) or high-fat diet (SFO-HF) and offspring from trained father submitted to control diet (TFO-C) or high-fat diet (TFO-HF). Our results show that an HFD downregulated collagen mRNA levels and upregulated inflammatory and atrophy pathways and adipogenic transcription factor mRNA levels in offspring gastrocnemius muscle. In contrast, paternal RT increased MMP-2 activity and decreased IL-6 levels in offspring exposed to a control diet. Paternal RT upregulated P70s6k and Ppara mRNA levels and downregulated Atrogin1 mRNA levels, while decreasing NFκ-B, IL-1β, and IL-8 protein levels in offspring exposed to an HFD. Paternal physical training influences key skeletal muscle remodeling pathways and inflammatory profiles relevant for muscle homeostasis maintenance in offspring submitted to different diets.
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Affiliation(s)
- Rebecca Salomão
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasília, Brazil.,Graduate Program in Rehabilitation Sciences, Universidade de Brasília, Brasília, Brazil
| | - Ivo Vieira de Sousa Neto
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasília, Brazil.,Graduate Program of Sciences and Technology of Health, Universidade de Brasília, Brasília, Brazil
| | | | - Ramires Alsamir Tibana
- Graduate Program in Health Sciences, Faculdade de Medicine, Universidade Federal do Mato Grosso (UFTM), Cuiabá, Brazil
| | | | - Guilherme Borges Pereira
- Interinstitutional Program of Post-Graduation in Physiological Sciences (UFSCar/UNESP), Department of Physiological Sciences, Universidade Federal de São Carlos, São Carlos, Brazil
| | - Octávio Luiz Franco
- Graduate Program in Genomics Science and Biotechnology, Universidade Católica de Brasília, Brasília, Brazil.,S-Inova Biotech, Graduate Program in Biotechnology, Universidade Católica Dom Bosco, Campo Grande, Brazil
| | - Carine Royer
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasília, Brazil.,Laboratory of Molecular Pharmacology, Faculty of Health Sciences, Universidade de Brasília, Brasília, Brazil
| | | | | | - Otávio Toledo Nóbrega
- Graduate Program of Medical Sciences, Universidade de Brasília, Brasília, Brazil.,Center for Tropical Medicine, Universidade de Brasília, Brasília, Brazil
| | - Rodrigo Haddad
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasília, Brazil.,Center for Tropical Medicine, Universidade de Brasília, Brasília, Brazil
| | - Jonato Prestes
- Graduate Program of Physical Education, Universidade Católica de Brasilia, Brasília, Brazil
| | - Rita de Cássia Marqueti
- Laboratory of Molecular Analysis, Faculty of Ceilândia, Universidade de Brasília, Brasília, Brazil.,Graduate Program in Rehabilitation Sciences, Universidade de Brasília, Brasília, Brazil.,Graduate Program of Sciences and Technology of Health, Universidade de Brasília, Brasília, Brazil
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17
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Kim DH, Bang E, Ha S, Jung HJ, Choi YJ, Yu BP, Chung HY. Organ-differential Roles of Akt/FoxOs Axis as a Key Metabolic Modulator during Aging. Aging Dis 2021; 12:1713-1728. [PMID: 34631216 PMCID: PMC8460295 DOI: 10.14336/ad.2021.0225] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Accepted: 02/25/2021] [Indexed: 12/11/2022] Open
Abstract
FoxOs and their post-translational modification by phosphorylation, acetylation, and methylation can affect epigenetic modifications and promote the expression of downstream target genes. Therefore, they ultimately affect cellular and biological functions during aging or occurrence of age-related diseases including cancer, diabetes, and kidney diseases. As known for its key role in aging, FoxOs play various biological roles in the aging process by regulating reactive oxygen species, lipid accumulation, and inflammation. FoxOs regulated by PI3K/Akt pathway modulate the expression of various target genes encoding MnSOD, catalases, PPARγ, and IL-1β during aging, which are associated with age-related diseases. This review highlights the age-dependent differential regulatory mechanism of Akt/FoxOs axis in metabolic and non-metabolic organs. We demonstrated that age-dependent suppression of Akt increases the activity of FoxOs (Akt/FoxOs axis upregulation) in metabolic organs such as liver and muscle. This Akt/FoxOs axis could be modulated and reversed by antiaging paradigm calorie restriction (CR). In contrast, hyperinsulinemia-mediated PI3K/Akt activation inhibited FoxOs activity (Akt/FoxOs axis downregulation) leading to decrease of antioxidant genes expression in non-metabolic organs such as kidneys and lungs during aging. These phenomena are reversed by CR. The results of studies on the process of aging and CR indicate that the Akt/FoxOs axis plays a critical role in regulating metabolic homeostasis, redox stress, and inflammation in various organs during aging process. The benefical actions of CR on the Akt/FoxOs axis in metabolic and non-metabolic organs provide further insights into the molecular mechanisms of organ-differential roles of Akt/FoxOs axis during aging.
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Affiliation(s)
- Dae Hyun Kim
- 1Department of Pharmacy, College of Pharmacy, Pusan National University, Gumjung-gu, Busan 46241, Korea
| | - EunJin Bang
- 1Department of Pharmacy, College of Pharmacy, Pusan National University, Gumjung-gu, Busan 46241, Korea
| | - Sugyeong Ha
- 1Department of Pharmacy, College of Pharmacy, Pusan National University, Gumjung-gu, Busan 46241, Korea
| | - Hee Jin Jung
- 1Department of Pharmacy, College of Pharmacy, Pusan National University, Gumjung-gu, Busan 46241, Korea
| | - Yeon Ja Choi
- 2Department of Biopharmaceutical Engineering, Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 38066, Korea
| | - Byung Pal Yu
- 3Department of Physiology, The University of Texas Health Science Center at San Antonio, TX 78229, USA
| | - Hae Young Chung
- 1Department of Pharmacy, College of Pharmacy, Pusan National University, Gumjung-gu, Busan 46241, Korea
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18
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Ludikhuize MC, Rodríguez Colman MJ. Metabolic Regulation of Stem Cells and Differentiation: A Forkhead Box O Transcription Factor Perspective. Antioxid Redox Signal 2021; 34:1004-1024. [PMID: 32847377 DOI: 10.1089/ars.2020.8126] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Significance: Stem cell activation and differentiation occur along changes in cellular metabolism. Metabolic transitions translate into changes in redox balance, cell signaling, and epigenetics, thereby regulating these processes. Metabolic transitions are key regulators of cell fate and exemplify the moonlighting nature of many metabolic enzymes and their associated metabolites. Recent Advances: Forkhead box O transcription factors (FOXOs) are bona fide regulators of cellular homeostasis. FOXOs are multitasking proteins able to regulate cell cycle, cellular metabolism, and redox state. Recent and ongoing research poses FOXOs as key factors in stem cell maintenance and differentiation in several tissues. Critical Issues: The multitasking nature of FOXOs and their tissue-specific expression patterns hinders to disclose a possible conserved mechanism of regulation of stem cell maintenance and differentiation. Moreover, cellular metabolism, cell signaling, and epigenetics establish complex regulatory interactions, which challenge the establishment of the causal/temporal nature of metabolic changes and stem cell activation and differentiation. Future Directions: The development of single-cell technologies and in vitro models able to reproduce the dynamics of stem cell differentiation are actively contributing to define the role of metabolism in this process. This knowledge is key to understanding and designing therapies for those pathologies where the balance between proliferation and differentiation is lost. Importantly, metabolic interventions could be applied to optimize stem cell cultures meant for therapeutical applications, such as transplantations, to treat autoimmune and degenerative disorders. Antioxid. Redox Signal. 34, 1004-1024.
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Affiliation(s)
- Marlies Corine Ludikhuize
- Molecular Cancer Research, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
| | - María José Rodríguez Colman
- Molecular Cancer Research, Center for Molecular Medicine, University Medical Center Utrecht, Utrecht, The Netherlands
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19
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Tebbe AW, Hanson J, Weiss WP. Effects of metabolizable protein concentration, amino acid profile, and fiber source on the messenger RNA expression of skeletal muscle in peripartum dairy cows. J Dairy Sci 2021; 104:7888-7901. [PMID: 33814155 DOI: 10.3168/jds.2021-20176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 02/25/2021] [Indexed: 01/11/2023]
Abstract
After parturition, dairy cows mobilize AA from skeletal muscle to meet metabolizable protein (MP) requirements. High mobilization may compromise cow health and longer-term milk production. Postpartum diets with higher MP concentrations, improved AA profiles, or MP increased at the expense of forages rather than nonforage fiber sources may attenuate muscle catabolism; however, the molecular mechanisms responsible need investigation. We evaluated mRNA expression in the longissimus dorsi of cows fed postpartum diets differing in MP concentration, AA profile, and fiber source. From 0 to 25 d after parturition, 40 multiparous cows received the following diets: (1) 13% deficient in MP (D-MP), (2) adequate in MP using primarily soy protein (A-MP), (3) adequate in MP using blends of proteins and individual AA to improve the AA profile (Blend), or (4) similar to Blend except additional protein replaced forage (Blend-fNDF). Biopsies were taken approximately -5, 7, and 25 d relative to parturition. Greater dietary MP concentration (D-MP vs. A-MP and Blend) decreased expression of genes related to protein synthesis (MTOR, RPS6KB1) and degradation (FOXO1), inflammation (IFNG, TLR4), and endoplasmic reticulum (ER) stress (HSPA5, DDIT) and increased genes associated with lipogenesis (PPARG) and glucose oxidation (LDH, MB). In Blend versus A-MP (i.e., effect of AA profile), expression related to apoptosis (CASP8) and inflammation (TNFA) decreased and genes associated with cell cycle progression (E2F1) and fast-twitch glycolytic muscle fiber type (MYH4) increased. Less forage (Blend-fNDF vs. Blend) decreased genes associated with lipogenesis (PPARG, ACACA) and ER stress (BCL2, DDIT3, EIF2AK3, PPP1R15A) and increased genes associated with inflammation (TNF), inhibition of myogenesis (MSTN), and autophagy (PEBP1). In summary and based on mRNA expression, increasing MP supply may attenuate muscle turnover and ER stress. However, an unbalanced AA supply reduced cell cycle progression and protein synthesis. Lower energy supplies may reduce cell growth and cause autophagy.
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Affiliation(s)
- Alexander W Tebbe
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster 44691
| | - Juliette Hanson
- Food Animal Health Research Program, The Ohio State University, Wooster 44691
| | - William P Weiss
- Department of Animal Sciences, Ohio Agricultural Research and Development Center, The Ohio State University, Wooster 44691.
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20
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Ying F, Liu H, Ching Tang EH, Lakhani I, Liu N, Xia Z, Liu S. Prostaglandin E receptor subtype 4 protects against diabetic cardiomyopathy by modulating cardiac fatty acid metabolism via FOXO1/CD36 signalling. Biochem Biophys Res Commun 2021; 548:196-203. [PMID: 33647796 DOI: 10.1016/j.bbrc.2021.01.038] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2021] [Accepted: 01/12/2021] [Indexed: 12/29/2022]
Abstract
BACKGROUND Cardiac fatty acid metabolism is essential for maintaining normal cardiac function at baseline and in response to various disease stress, like diabetes. EP4 is widely expressed in cardiomyocytes and has been demonstrated to play a role in cardio function. However, its function in regulating cardiac fatty acid metabolism is remained unknown. METHODS Mice were fed with standard chow or high-fat for eight weeks. The effects of EP4 deficiency on cardiac function, cardiomyocytes hypertrophy and myocardial fibrosis were studied. The possible regulatory mechanisms were further investigated. RESULTS EP4-/- mice exhibited concentric hypertrophy and myocardial fibrosis with cardiac energy deprivation due to reduction of fatty acid uptake and inhibition of ATP generation mediated by FOXO1/CD36 signalling. Moreover, pharmacologically activated EP4 alleviated impaired fatty acid transport and insufficient ATP generation in cardiomyocytes. CONCLUSION EP4 tightly coordinates the rates of cardiac fatty acid uptake and ATP generation via FOXO1/CD36 signalling axis. Our study provides evidences for the link between EP4 and cardiac fatty acid transport and further pointed out that EP4 could be a potential target for modulating fatty acid metabolism and curbing cardiac tissue-specific impairment of function following diabetes.
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Affiliation(s)
- Fan Ying
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510260, PR China
| | - Hao Liu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510260, PR China
| | - Eva Hoi Ching Tang
- Department of Pharmacology and Pharmacy and State Key Laboratory of Pharmaceutical Biotechnology, Department of Physiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, China
| | - Ishan Lakhani
- Cardiovascular Analytics Group, Laboratory of Cardiovascular Physiology, Hong Kong, China
| | - Ningning Liu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510260, PR China
| | - Zhengyuan Xia
- Department of Anesthesiology, State Key Laboratory of Pharmaceutical Biotechnology, the University of Hong Kong, Hong Kong, China
| | - Shiming Liu
- Guangzhou Institute of Cardiovascular Disease, Guangdong Key Laboratory of Vascular Diseases, State Key Laboratory of Respiratory Disease, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, Guangdong, 510260, PR China.
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21
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Benchoula K, Arya A, Parhar IS, Hwa WE. FoxO1 signaling as a therapeutic target for type 2 diabetes and obesity. Eur J Pharmacol 2020; 891:173758. [PMID: 33249079 DOI: 10.1016/j.ejphar.2020.173758] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 10/12/2020] [Accepted: 11/23/2020] [Indexed: 02/06/2023]
Abstract
Glucose production and the consumption of high levels of carbohydrate increase the chance of insulin resistance, especially in cases of obesity. Therefore, maintaining a balanced glucose homeostasis might form a strategy to prevent or cure diabetes and obesity. The activation and inhibition of glucose production is complicated due to the presence of many interfering pathways. These pathways can be viewed at the downstream level because they activate certain transcription factors, which include the Forkhead-O1 (FoxO1). This has been identified as a significant agent in the pancreas, liver, and adipose tissue, which is significant in the regulation of lipids and glucose. The objective of this review is to discuss the intersecting portrayal of FoxO1 and its parallel cross-talk which highlights obesity-induced insulin susceptibility in the discovery of a targeted remedy. The review also analyses current progress and provides a blueprint on therapeutics, small molecules, and extracts/phytochemicals which are explored at the pre-clinical level.
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Affiliation(s)
- Khaled Benchoula
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia
| | - Aditya Arya
- Department of Pharmacology and Therapeutics, School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia; Department of Pharmacology and Therapeutics, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Parkville, Victoria, 3010, Australia; Malaysian Institute of Pharmaceuticals and Nutraceuticals (IPharm), Bukit Gambir, Gelugor, Pulau Pinang, Malaysia
| | - Ishwar S Parhar
- Monash University (Malaysia) BRIMS, Jeffrey Cheah School of Medicine & Health Sciences, Malaysia
| | - Wong Eng Hwa
- School of Medicine, Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya, Malaysia.
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22
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de las Heras-Saldana S, Chung KY, Kim H, Lim D, Gondro C, van der Werf JHJ. Differential Gene Expression in Longissimus Dorsi Muscle of Hanwoo Steers-New Insight in Genes Involved in Marbling Development at Younger Ages. Genes (Basel) 2020; 11:genes11111381. [PMID: 33233382 PMCID: PMC7700136 DOI: 10.3390/genes11111381] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/06/2020] [Accepted: 11/19/2020] [Indexed: 12/25/2022] Open
Abstract
The Korean Hanwoo breed possesses a high capacity to accumulate intramuscular fat, which is measured as a marbling score in the beef industry. Unfortunately, the development of marbling is not completely understood and the identification of differentially expressed genes at an early age is required to better understand this trait. In this study, we took muscle samples from 12 Hanwoo steers at the age of 18 and 30 months. From the contrast between age and marbling score, we identified in total 1883 differentially expressed genes (FDR < 0.05 and logarithm fold change ≥ 1.5) with 782 genes up-regulated and 1101 down-regulated. Differences in gene expression were higher between the ages x marbling groups rather than between high and low marbling groups. At 18 months of age, the genes SLC38A4, ABCA10, APOL6, and two novel genes (ENSBTAG00000015330 and ENSBTAG00000046041) were up-regulated in the high marbling group. From the protein–protein interaction network analysis, we identified unique networks when comparing marbling scores between different ages. Nineteen genes (AGT, SERPINE1, ADORA1, FOS, LEP, FOXO1, FOXO3, ADIPOQ, ITGA1, SDC1, SDC4, ITGB3, ITGB4, CXCL10, ACTG2, MX1, EDN1, ACTA2, and ESPL1) were identified to have an important role in marbling development. Further analyses are needed to better understand the role of these genes.
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Affiliation(s)
- Sara de las Heras-Saldana
- School of Environmental and Rural Science, University of New England, Armidale 2351, NSW, Australia; (H.K.); (C.G.); (J.H.J.v.d.W.)
- Correspondence:
| | - Ki Yong Chung
- Department of Beef Science, Korea National College of Agriculture and Fisheries, Jeonju 54874, Korea;
| | - Hyounju Kim
- School of Environmental and Rural Science, University of New England, Armidale 2351, NSW, Australia; (H.K.); (C.G.); (J.H.J.v.d.W.)
- Hanwoo Research Institute, National Institute of Animal Science, Pyeongchang 25340, Korea
| | - Dajeong Lim
- Animal Genomics & Bioinformatics Division, National Institute of Animal Science, Jeonbuk 55365, Korea;
| | - Cedric Gondro
- School of Environmental and Rural Science, University of New England, Armidale 2351, NSW, Australia; (H.K.); (C.G.); (J.H.J.v.d.W.)
- College of Agriculture & Resources, Department of Animal Science, Michigan State University, East Lansing, MI 48824, USA
| | - Julius H. J. van der Werf
- School of Environmental and Rural Science, University of New England, Armidale 2351, NSW, Australia; (H.K.); (C.G.); (J.H.J.v.d.W.)
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23
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Li Q, Wen H, Li Y, Zhang Z, Wang L, Mao X, Li J, Qi X. FOXO1A promotes neuropeptide FF transcription subsequently regulating the expression of feeding-related genes in spotted sea bass (Lateolabrax maculatus). Mol Cell Endocrinol 2020; 517:110871. [PMID: 32450284 DOI: 10.1016/j.mce.2020.110871] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 05/05/2020] [Accepted: 05/13/2020] [Indexed: 01/13/2023]
Abstract
FOXOs belong to the forkhead transcription factor superfamily, several of which are suggested to be involved in the control of food intake. Previously, we proved that the neuropeptide FF (NPFF) peptide was involved in feeding regulation in spotted sea bass. In the present study, seven members of the foxo family were identified in the whole genome of spotted sea bass. The distributions of these genes in different tissues were analyzed by qRT-PCR. Variations in the foxo1a and npff expression profiles during short-term starvation showed similar expression patterns. The colocalization of foxo1a and npff in the telencephalon, hypothalamus, stomach and intestine further provided evidence that foxo1a may act directly to promote the transcription of npff. Thirteen predicted FOXO1 binding sites were found in the 5' upstream region of npff. Luciferase assay results showed that FOXO1A was able to activate npff transcriptional responses by directly binding DNA response elements, and the key regulatory areas and sites of FOXO1A on the npff promoter were confirmed by deletion and site-directed mutagenesis analyses. These findings may help to elucidate the role of FOXO1 in the regulation of feeding processes in teleosts.
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Affiliation(s)
- Qing Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Haishen Wen
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Yun Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Zhanxiong Zhang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Lingyu Wang
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Xuebin Mao
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Junjie Li
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China
| | - Xin Qi
- Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, China.
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24
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Intramuscular Mechanisms Mediating Adaptation to Low-Carbohydrate, High-Fat Diets during Exercise Training. Nutrients 2020; 12:nu12092496. [PMID: 32824957 PMCID: PMC7551624 DOI: 10.3390/nu12092496] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 08/15/2020] [Accepted: 08/17/2020] [Indexed: 12/01/2022] Open
Abstract
Interest in low-carbohydrate, high-fat (LCHF) diets has increased over recent decades given the theorized benefit of associated intramuscular adaptations and shifts in fuel utilization on endurance exercise performance. Consuming a LCHF diet during exercise training increases the availability of fat (i.e., intramuscular triglyceride stores; plasma free fatty acids) and decreases muscle glycogen stores. These changes in substrate availability increase reliance on fat oxidation for energy production while simultaneously decreasing reliance on carbohydrate oxidation for fuel during submaximal exercise. LCHF diet-mediated changes in substrate oxidation remain even after endogenous or exogenous carbohydrate availability is increased, suggesting that the adaptive response driving changes in fat and carbohydrate oxidation lies within the muscle and persists even when the macronutrient content of the diet is altered. This narrative review explores the intramuscular adaptations underlying increases in fat oxidation and decreases in carbohydrate oxidation with LCHF feeding. The possible effects of LCHF diets on protein metabolism and post-exercise muscle remodeling are also considered.
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25
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Nakai S, Oyabu M, Hatazawa Y, Akashi S, Kitamura T, Miura S, Kamei Y. FOXO1 suppresses PGC-1β gene expression in skeletal muscles. FEBS Open Bio 2020; 10:1373-1388. [PMID: 32433820 PMCID: PMC7327905 DOI: 10.1002/2211-5463.12898] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 05/04/2020] [Accepted: 05/15/2020] [Indexed: 01/29/2023] Open
Abstract
Peroxisome proliferator‐activated receptor‐gamma coactivator‐1β (PGC‐1β) is a transcriptional regulator whose increased expression activates energy expenditure‐related genes in skeletal muscles. However, how PGC‐1β is regulated remains largely unclear. Here, we show that PGC‐1β gene expression is negatively correlated with the expression of a transcription factor, forkhead box protein O1 (FOXO1), whose expression is increased during muscle atrophy. In the skeletal muscles of FOXO1‐overexpressing transgenic mice, PGC‐1β gene expression is decreased. Denervation or plaster cast‐based unloading, as well as fasting, increases endogenous FOXO1 expression in skeletal muscles, with decreased PGC‐1β expression. In the skeletal muscles of FOXO1‐knockout mice, the decrease in PGC‐1β expression caused by fasting was attenuated. Tamoxifen‐inducible FOXO1 activation in C2C12 myoblasts causes a marked decrease of PGC‐1β expression. These findings together reveal that FOXO1 activation suppresses PGC‐1β expression. During atrophy with FOXO1 activation, decreased PGC‐1β may decrease energy expenditure and avoid wasting energy.
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Affiliation(s)
- Shiho Nakai
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Mamoru Oyabu
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Yukino Hatazawa
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Shiori Akashi
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Tadahiro Kitamura
- Metabolic Signal Research Center, Institute for Molecular and Cellular Regulation, Gunma University, Gunma, Japan
| | - Shinji Miura
- Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yasutomi Kamei
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
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26
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Lai N, Fealy CE, Kummitha CM, Cabras S, Kirwan JP, Hoppel CL. Mitochondrial Utilization of Competing Fuels Is Altered in Insulin Resistant Skeletal Muscle of Non-obese Rats (Goto-Kakizaki). Front Physiol 2020; 11:677. [PMID: 32612543 PMCID: PMC7308651 DOI: 10.3389/fphys.2020.00677] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 05/26/2020] [Indexed: 12/25/2022] Open
Abstract
Aim Insulin-resistant skeletal muscle is characterized by metabolic inflexibility with associated alterations in substrate selection, mediated by peroxisome-proliferator activated receptor δ (PPARδ). Although it is established that PPARδ contributes to the alteration of energy metabolism, it is not clear whether it plays a role in mitochondrial fuel competition. While nutrient overload may impair metabolic flexibility by fuel congestion within mitochondria, in absence of obesity defects at a mitochondrial level have not yet been excluded. We sought to determine whether reduced PPARδ content in insulin-resistant rat skeletal muscle of a non-obese rat model of T2DM (Goto-Kakizaki, GK) ameliorate the inhibitory effect of fatty acid (i.e., palmitoylcarnitine) on mitochondrial carbohydrate oxidization (i.e., pyruvate) in muscle fibers. Methods Bioenergetic function was characterized in oxidative soleus (S) and glycolytic white gastrocnemius (WG) muscles with measurement of respiration rates in permeabilized fibers in the presence of complex I, II, IV, and fatty acid substrates. Mitochondrial content was measured by citrate synthase (CS) and succinate dehydrogenase activity (SDH). Western blot was used to determine protein expression of PPARδ, PDK isoform 2 and 4. Results CS and SDH activity, key markers of mitochondrial content, were reduced by ∼10-30% in diabetic vs. control, and the effect was evident in both oxidative and glycolytic muscles. PPARδ (p < 0.01), PDK2 (p < 0.01), and PDK4 (p = 0.06) protein content was reduced in GK animals compared to Wistar rats (N = 6 per group). Ex vivo respiration rates in permeabilized muscle fibers determined in the presence of complex I, II, IV, and fatty acid substrates, suggested unaltered mitochondrial bioenergetic function in T2DM muscle. Respiration in the presence of pyruvate was higher compared to palmitoylcarnitine in both animal groups and fiber types. Moreover, respiration rates in the presence of both palmitoylcarnitine and pyruvate were reduced by 25 ± 6% (S), 37 ± 6% (WG) and 63 ± 6% (S), 57 ± 8% (WG) compared to pyruvate for both controls and GK, respectively. The inhibitory effect of palmitoylcarnitine on respiration was significantly greater in GK than controls (p < 10-3). Conclusion With competing fuels, the presence of fatty acids diminishes mitochondria ability to utilize carbohydrate derived substrates in insulin-resistant muscle despite reduced PPARδ content.
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Affiliation(s)
- Nicola Lai
- Department of Electrical and Computer Engineering, Old Dominion University, Norfolk, VA, United States.,Biomedical Engineering Institute, Old Dominion University, Norfolk, VA, United States.,Department of Mechanical, Chemical and Materials Engineering, University of Cagliari, Cagliari, Italy.,Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States.,Center for Mitochondrial Disease, Case Western Reserve University, Cleveland, OH, United States
| | - Ciarán E Fealy
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Chinna M Kummitha
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - Silvia Cabras
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - John P Kirwan
- Department of Pathobiology, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, United States.,Department of Physiology and Biophysics, Case Western Reserve University, Cleveland, OH, United States.,Pennington Biomedical Research Center, Baton Rouge, LA, United States
| | - Charles L Hoppel
- Center for Mitochondrial Disease, Case Western Reserve University, Cleveland, OH, United States.,Department of Pharmacology, Case Western Reserve University, Cleveland, OH, United States.,Department of Medicine, School of Medicine, Case Western Reserve University, Cleveland, OH, United States
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27
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Recent Data on Cellular Component Turnover: Focus on Adaptations to Physical Exercise. Cells 2019; 8:cells8060542. [PMID: 31195688 PMCID: PMC6627613 DOI: 10.3390/cells8060542] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 12/22/2022] Open
Abstract
Significant progress has expanded our knowledge of the signaling pathways coordinating muscle protein turnover during various conditions including exercise. In this manuscript, the multiple mechanisms that govern the turnover of cellular components are reviewed, and their overall roles in adaptations to exercise training are discussed. Recent studies have highlighted the central role of the energy sensor (AMP)-activated protein kinase (AMPK), forkhead box class O subfamily protein (FOXO) transcription factors and the kinase mechanistic (or mammalian) target of rapamycin complex (MTOR) in the regulation of autophagy for organelle maintenance during exercise. A new cellular trafficking involving the lysosome was also revealed for full activation of MTOR and protein synthesis during recovery. Other emerging candidates have been found to be relevant in organelle turnover, especially Parkin and the mitochondrial E3 ubiquitin protein ligase (Mul1) pathways for mitochondrial turnover, and the glycerolipids diacylglycerol (DAG) for protein translation and FOXO regulation. Recent experiments with autophagy and mitophagy flux assessment have also provided important insights concerning mitochondrial turnover during ageing and chronic exercise. However, data in humans are often controversial and further investigations are needed to clarify the involvement of autophagy in exercise performed with additional stresses, such as hypoxia, and to understand the influence of exercise modality. Improving our knowledge of these pathways should help develop therapeutic ways to counteract muscle disorders in pathological conditions.
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28
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Matsuda R, Uchitomi R, Oyabu M, Hatazawa Y, Kamei Y. Metabolomic analysis of C2C12 myoblasts induced by the transcription factor FOXO1. FEBS Lett 2019; 593:1303-1312. [PMID: 31111473 DOI: 10.1002/1873-3468.13445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 04/27/2019] [Accepted: 05/16/2019] [Indexed: 11/06/2022]
Abstract
The transcription factor FOXO1 is considered to play roles in the regulation of energy metabolism in various tissues. To determine the metabolic changes occurring due to FOXO1 activation, we analyzed the metabolic profile of C2C12 myoblasts expressing a FOXO1-estrogen receptor fusion protein using capillary electrophoresis with electrospray ionization time-of-flight mass spectrometry (CE-TOFMS). In FOXO1-activated cells, the metabolite levels during glycolysis are higher and the gene expression of pyruvate dehydrogenase kinase, an enzyme that inhibits glucose utilization, is increased. In addition, the metabolite levels of numerous amino acids are decreased, with increased gene expression of branched chain amino acid metabolism enzymes. Our results suggest that FOXO1 suppresses glucose utilization and promotes the use of proteins/amino acids as energy sources in muscle cells, potentially during starvation.
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Affiliation(s)
- Rintaro Matsuda
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Japan
| | - Ran Uchitomi
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Japan
| | - Mamoru Oyabu
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Japan
| | - Yukino Hatazawa
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Japan
| | - Yasutomi Kamei
- Graduate School of Life and Environmental Sciences, Kyoto Prefectural University, Japan
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29
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Soledad RB, Charles S, Samarjit D. The secret messages between mitochondria and nucleus in muscle cell biology. Arch Biochem Biophys 2019; 666:52-62. [PMID: 30935885 PMCID: PMC6538274 DOI: 10.1016/j.abb.2019.03.019] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 03/01/2019] [Accepted: 03/28/2019] [Indexed: 02/06/2023]
Abstract
Over two thousand proteins are found in the mitochondrial compartment but the mitochondrial genome codes for only 13 proteins. The majority of mitochondrial proteins are products of nuclear genes and are synthesized in the cytosol, then translocated into the mitochondria. Most of the subunits of the five respiratory chain complexes in the inner mitochondrial membrane, which generate a proton gradient across the membrane and produce ATP, are encoded by nuclear genes. Therefore, it is quite clear that import of nuclear-encoded proteins into the mitochondria is essential for mitochondrial function. Nuclear to mitochondrial communication is well studied. However, there is another arm to this communication, mitochondria to nucleus retrograde signaling. This plays an important role in the maintenance of cellular homeostasis, and is less well studied. Several transcription factors, including Sp1, SIRT3 and GSP2, are activated by altered mitochondrial function. These activated transcription factors then translocate to the nucleus. Based on the mitochondrially generated molecular signal, nuclear genes are targeted, which alters transcription of nuclear genes that code for mitochondrial proteins. This review article will mainly focus on this interactive and bi-directional communication between mitochondria and nucleus, and how this communication plays a significant role in muscle cell biology.
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Affiliation(s)
| | - Steenbergen Charles
- Department of Pathology, Johns Hopkins University, Baltimore, MD, United States
| | - Das Samarjit
- Department of Pathology, Johns Hopkins University, Baltimore, MD, United States.
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30
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Abstract
Background Thermogenic adipocytes reorganize their metabolism during cold exposure. Metabolic reprogramming requires readily available bioenergetics substrates, such as glucose and fatty acids, to increase mitochondrial respiration and produce heat via the uncoupling protein 1 (UCP1). This condition generates a finely-tuned production of mitochondrial reactive oxygen species (ROS) that support non-shivering thermogenesis. Scope of review Herein, the findings underlining the mechanisms that regulate ROS production and control of the adaptive responses tuning thermogenesis in adipocytes are described. Furthermore, this review describes the metabolic responses to substrate availability and the consequence of mitochondrial failure to switch fuel oxidation in response to changes in nutrient availability. A framework to control mitochondrial ROS threshold to maximize non-shivering thermogenesis in adipocytes is provided. Major conclusions Thermogenesis synchronizes fuel oxidation with an acute and transient increase of mitochondrial ROS that promotes the activation of redox-sensitive thermogenic signaling cascade and UCP1. However, an overload of substrate flux to mitochondria causes a massive and damaging mitochondrial ROS production that affects mitochondrial flexibility. Finding novel thermogenic redox targets and manipulating ROS concentration in adipocytes appears to be a promising avenue of research for improving thermogenesis and counteracting metabolic diseases. Mitochondrial ROS support non-shivering thermogenesis. Thermogenic ROS are tightly related to mitochondrial metabolic reorganization. Uncontrolled mitochondrial ROS production is causative of metabolic inflexibility.
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31
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Kawaguchi F, Kigoshi H, Fukushima M, Iwamoto E, Kobayashi E, Oyama K, Mannen H, Sasazaki S. Whole-genome resequencing to identify candidate genes for the QTL for oleic acid percentage in Japanese Black cattle. Anim Sci J 2019; 90:467-472. [PMID: 30780197 DOI: 10.1111/asj.13179] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/12/2018] [Accepted: 12/27/2018] [Indexed: 01/25/2023]
Abstract
In our previous study, we detected a QTL for the oleic acid percentage (C18:1) on BTA9 in Japanese Black cattle through a genome-wide association study (GWAS). In this study, we performed whole-genome resequencing on eight animals with higher and lower C18:1 to identify candidate polymorphisms for the QTL. A total of 39,658 polymorphisms were detected in the candidate region, which were narrowed to 1993 polymorphisms within 23 genes based on allele differences between the high and low C18:1 groups. We subsequently selected three candidate genes, that is, CYB5R4, MED23, and VNN1, among the 23 genes based on their function in fatty acid metabolism. In each candidate gene, three SNPs, that is, CYB5R4 c.*349G > T, MED23 c.3700G > A, and VNN1 c.197C > T, were selected as candidate SNPs to verify their effect on C18:1 in a Japanese Black cattle population (n = 889). The statistical analysis showed that these SNPs were significantly associated with C18:1 (p < 0.05), suggesting that they were candidates for the QTL. In conclusion, we successfully narrowed the candidates for the QTL by detecting possible polymorphisms located within the candidate region. It is expected that the responsible polymorphism can be identified by demonstrating their effect on the gene's function.
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Affiliation(s)
- Fuki Kawaguchi
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Hiroto Kigoshi
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Moriyuki Fukushima
- Northern Center of Agricultural Technology, General Technological Center of Hyogo Prefecture for Agriculture, Forest and Fishery, Asago, Japan
| | - Eiji Iwamoto
- Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries, Kasai, Japan
| | - Eiji Kobayashi
- Division of Animal Breeding and Reproduction Research, Institute of Livestock and Grassland Science, National Agriculture and Food Research Organization, Tsukuba, Japan
| | - Kenji Oyama
- Food Resources Education & Research Center, Kobe University, Kasai, Japan
| | - Hideyuki Mannen
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
| | - Shinji Sasazaki
- Laboratory of Animal Breeding and Genetics, Graduate School of Agricultural Science, Kobe University, Kobe, Japan
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32
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El Ouaamari A, O-Sullivan I, Shirakawa J, Basile G, Zhang W, Roger S, Thomou T, Xu S, Qiang G, Liew CW, Kulkarni RN, Unterman TG. Forkhead box protein O1 (FoxO1) regulates hepatic serine protease inhibitor B1 (serpinB1) expression in a non-cell-autonomous fashion. J Biol Chem 2018; 294:1059-1069. [PMID: 30459233 DOI: 10.1074/jbc.ra118.006031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2018] [Revised: 11/15/2018] [Indexed: 12/13/2022] Open
Abstract
FoxO proteins are major targets of insulin action, and FoxO1 mediates the effects of insulin on hepatic glucose metabolism. We reported previously that serpinB1 is a liver-secreted factor (hepatokine) that promotes adaptive β-cell proliferation in response to insulin resistance in the liver-specific insulin receptor knockout (LIRKO) mouse. Here we report that FoxO1 plays a critical role in promoting serpinB1 expression in hepatic insulin resistance in a non-cell-autonomous manner. Mice lacking both the insulin receptor and FoxO1 (LIRFKO) exhibit reduced β-cell mass compared with LIRKO mice because of attenuation of β-cell proliferation. Although hepatic expression of serpinB1 mRNA and protein levels was increased in LIRKO mice, both the mRNA and protein levels returned to control levels in LIRFKO mice. Furthermore, liver-specific expression of constitutively active FoxO1 in transgenic mice induced an increase in hepatic serpinB1 mRNA and protein levels in refed mice. Conversely, serpinB1 mRNA and protein levels were reduced in mice lacking FoxO proteins in the liver. ChIP studies demonstrated that FoxO1 binds to three distinct sites located ∼9 kb upstream of the serpinb1 gene in primary mouse hepatocytes and that this binding is enhanced in hepatocytes from LIRKO mice. However, adenoviral expression of WT or constitutively active FoxO1 and insulin treatment are sufficient to regulate other FoxO1 target genes (IGFBP-1 and PEPCK) but not serpinB1 expression in mouse primary hepatocytes. These results indicate that liver FoxO1 promotes serpinB1 expression in hepatic insulin resistance and that non-cell-autonomous factors contribute to FoxO1-dependent effects on serpinB1 expression in the liver.
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Affiliation(s)
- Abdelfattah El Ouaamari
- From the Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Harvard Stem Cell Institute, Boston, Massachusetts 02215
| | - InSug O-Sullivan
- the Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois, Chicago, Illinois 60612.,the Medical Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612
| | - Jun Shirakawa
- From the Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Harvard Stem Cell Institute, Boston, Massachusetts 02215
| | - Giorgio Basile
- From the Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Harvard Stem Cell Institute, Boston, Massachusetts 02215
| | - Wenwei Zhang
- the Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois, Chicago, Illinois 60612.,the Medical Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612
| | - Sandra Roger
- From the Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Harvard Stem Cell Institute, Boston, Massachusetts 02215
| | - Thomas Thomou
- the Section on Integrative Physiology and Metabolism, Joslin Diabetes Center, Harvard Medical School, Boston, Massachusetts 02215, and
| | - Shanshan Xu
- the Department of Physiology and Biophysics, College of Medicine, University of Illinois, Chicago, Illinois 60612
| | - Guifen Qiang
- the Department of Physiology and Biophysics, College of Medicine, University of Illinois, Chicago, Illinois 60612
| | - Chong Wee Liew
- the Department of Physiology and Biophysics, College of Medicine, University of Illinois, Chicago, Illinois 60612
| | - Rohit N Kulkarni
- From the Islet Cell and Regenerative Biology, Joslin Diabetes Center, Department of Medicine, Harvard Medical School, Harvard Stem Cell Institute, Boston, Massachusetts 02215,
| | - Terry G Unterman
- the Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois, Chicago, Illinois 60612, .,the Medical Research Service, Jesse Brown Veterans Affairs Medical Center, Chicago, Illinois 60612
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Lundell LS, Massart J, Altıntaş A, Krook A, Zierath JR. Regulation of glucose uptake and inflammation markers by FOXO1 and FOXO3 in skeletal muscle. Mol Metab 2018; 20:79-88. [PMID: 30502001 PMCID: PMC6358548 DOI: 10.1016/j.molmet.2018.09.011] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 09/05/2018] [Accepted: 09/10/2018] [Indexed: 01/02/2023] Open
Abstract
Objective Forkhead box class O (FOXO) transcription factors regulate whole body energy metabolism, skeletal muscle mass, and substrate switching. FOXO1 and FOXO3 are highly abundant transcription factors, but their precise role in skeletal muscle metabolism has not been fully elucidated. Methods To elucidate the role of FOXO in skeletal muscle, dominant negative (dn) constructs for FOXO1 (FOXO1dn) or FOXO3 (FOXO3dn) were transfected by electroporation into mouse tibialis anterior muscle and glucose uptake, signal transduction, and gene expression profiles were assessed after an oral glucose tolerance test. Results were compared against contralateral control transfected muscle. Results FOXO1dn and FOXO3dn attenuated glucose uptake (35%, p < 0.01 and 20%, p < 0.05), GLUT4 protein (40%, p < 0.05 and 10%, p < 0.05), and subunits of the oxidative phosphorylation cascade. Intramuscular glycogen content was decreased (20%, p < 0.05) by FOXO3dn, but not FOXO1dn. Transcriptomic analysis revealed major pathways affected by FOXO1dn or FOXO3dn revolve around metabolism and inflammation. FOXO1dn increased Akt protein (140%, p < 0.001), p-AktSer473 (720%, p < 0.05) and p-AktThr308 (570%, p < 0.01), whereas FOXO3dn was without effect. FOXO1dn and FOXO3dn increased mTOR protein content (170% and 190%, p < 0.05), and p-p70S6KThr389 (420%, p < 0.01 and 300%, p < 0.01), while p-mTORSer2448 (500%, p < 0.01), was only increased by FOXO1dn. Chemokines and immune cell markers were robustly upregulated in skeletal muscle following the FOXOdn transfections, but not after control transfection. Conclusions FOXO1 and FOXO3 regulate glucose metabolism and markers of inflammation in skeletal muscle, implicating transcriptional control governing “immunometabolic” dynamics. FOXO1 and FOXO3 transcriptional activity regulates glucose uptake and inflammation. Inhibiting FOXO1 transcriptional activity affects more genes compared to FOXO3. Inhibiting FOXO1 and FOXO3 leads to similar pathway enrichment.
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Affiliation(s)
- Leonidas S Lundell
- Department of Physiology and Pharmacology, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden
| | - Julie Massart
- Department of Molecular Medicine and Surgery, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden
| | - Ali Altıntaş
- Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anna Krook
- Department of Physiology and Pharmacology, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden; Department of Molecular Medicine and Surgery, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden
| | - Juleen R Zierath
- Department of Physiology and Pharmacology, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden; Department of Molecular Medicine and Surgery, Section for Integrative Physiology, Karolinska Institutet, Stockholm, Sweden; Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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34
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Maher M, Diesch J, Casquero R, Buschbeck M. Epigenetic-Transcriptional Regulation of Fatty Acid Metabolism and Its Alterations in Leukaemia. Front Genet 2018; 9:405. [PMID: 30319689 PMCID: PMC6165860 DOI: 10.3389/fgene.2018.00405] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/03/2018] [Indexed: 12/26/2022] Open
Abstract
In recent years fatty acid metabolism has gained greater attention in haematologic cancers such as acute myeloid leukaemia. The oxidation of fatty acids provides fuel in the form of ATP and NADH, while fatty acid synthesis provides building blocks for cellular structures. Here, we will discuss how leukaemic cells differ from healthy cells in their increased reliance on fatty acid metabolism. In order to understand how these changes are achieved, we describe the main pathways regulating fatty acid metabolism at the transcriptional level and highlight the limited knowledge about related epigenetic mechanisms. We explore these mechanisms in the context of leukaemia and consider the relevance of the bone marrow microenvironment in disease management. Finally, we discuss efforts to interfere with fatty acid metabolism as a therapeutic strategy along with the use of metabolic parameters as biomarkers.
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Affiliation(s)
- Michael Maher
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Germans Trias i Pujol-Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Jeannine Diesch
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Germans Trias i Pujol-Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Raquel Casquero
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Germans Trias i Pujol-Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Marcus Buschbeck
- Josep Carreras Leukaemia Research Institute (IJC), Campus ICO-Germans Trias i Pujol-Universitat Autònoma de Barcelona, Barcelona, Spain
- Program for Predictive and Personalized Medicine of Cancer, Germans Trias i Pujol Research Institute (PMPPC-IGTP), Barcelona, Spain
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Abstract
The hydrophobicity of vitamin E poses transport and metabolic challenges to regulate its bioavailability and to prevent its accumulation in lipid-rich tissues such as adipose tissue, brain, and liver. Water-soluble precursors of vitamin E (α-tocopherol, αT), such as its esters with acetate (αTA), succinate (αTS), or phosphate (αTP), have increased solubility in water and stability against reaction with free radicals, but they are rapidly converted during their uptake into the lipid-soluble vitamin E. Therefore, the bioavailability of these precursors as intact molecules is low; nevertheless, at least for αTS and αTP, the recent research has revealed unique regulatory effects on signal transduction and gene expression and the modulation of cellular events ranging from proliferation, survival/apoptosis, lipid uptake and metabolism, phagocytosis, long term potentiation, cell migration, telomere maintenance, and angiogenesis. Moreover, water-soluble derivatives of vitamin E including some based on αTP are increasingly used as components of nanocarriers for enhanced and targeted delivery of drugs and other molecules (vitamins, including αT and αTP itself, vitamin D3, carnosine, caffeine, docosahexaenoic acid (DHA), insulin) and cofactors such as coenzyme Q10. In this review, the chemical characteristics, transport, metabolic pathways, and molecular mechanisms of action of αTP in cells and tissues are summarized and put into perspective with its possible role in the prevention of a number of diseases.
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Affiliation(s)
- Jean-Marc Zingg
- Miller School of Medicine, University of Miami, Miami, FL, United States.
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Adipocyte-induced CD36 expression drives ovarian cancer progression and metastasis. Oncogene 2018; 37:2285-2301. [PMID: 29398710 PMCID: PMC5920730 DOI: 10.1038/s41388-017-0093-z] [Citation(s) in RCA: 322] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Revised: 09/15/2017] [Accepted: 11/24/2017] [Indexed: 11/08/2022]
Abstract
Ovarian cancer (OvCa) is characterized by widespread and rapid metastasis in the peritoneal cavity. Visceral adipocytes promote this process by providing fatty acids (FAs) for tumour growth. However, the exact mechanism of FA transfer from adipocytes to cancer cells remains unknown. This study shows that OvCa cells co-cultured with primary human omental adipocytes express high levels of the FA receptor, CD36, in the plasma membrane, thereby facilitating exogenous FA uptake. Depriving OvCa cells of adipocyte-derived FAs using CD36 inhibitors and short hairpin RNA knockdown prevented development of the adipocyte-induced malignant phenotype. Specifically, inhibition of CD36 attenuated adipocyte-induced cholesterol and lipid droplet accumulation and reduced intracellular reactive oxygen species (ROS) content. Metabolic analysis suggested that CD36 plays an essential role in the bioenergetic adaptation of OvCa cells in the adipocyte-rich microenvironment and governs their metabolic plasticity. Furthermore, the absence of CD36 affected cellular processes that play a causal role in peritoneal dissemination, including adhesion, invasion, migration and anchorage independent growth. Intraperitoneal injection of CD36-deficient cells or treatment with an anti-CD36 monoclonal antibody reduced tumour burden in mouse xenografts. Moreover, a matched cohort of primary and metastatic human ovarian tumours showed upregulation of CD36 in the metastatic tissues, a finding confirmed in three public gene expression data sets. These results suggest that omental adipocytes reprogram tumour metabolism through the upregulation of CD36 in OvCa cells. Targeting the stromal-tumour metabolic interface via CD36 inhibition may prove to be an effective treatment strategy against OvCa metastasis.
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Role of Forkhead Box O (FOXO) transcription factor in aging and diseases. Gene 2018; 648:97-105. [PMID: 29428128 DOI: 10.1016/j.gene.2018.01.051] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 12/26/2017] [Accepted: 01/14/2018] [Indexed: 12/21/2022]
Abstract
Fork head box O (FOXO) transcription factor is a key player in an evolutionarily conserved pathway. The mammalian FOXO family consists of FOXO1, 3, 4 and 6, are highly similar in their structure, function and regulation. To maintain optimum body function, the organisms have developed complex mechanisms for homeostasis. Importantly, it is well known that when these mechanisms dysregulate it results in the development of age-related disease. FOXO proteins are involved in a diverse cellular function and also have clinical significance including cell cycle arrest, cell differentiation, tumour suppression, DNA repair, longevity, diabetic complications, immunity, wound healing, regulation of metabolism and thus treatment of several types of diseases. By the combinations of post-translational modifications FOXO's serve as a 'molecular code' to sense external stimuli and recruit it as to specific regions of the genome and provide an integrated cellular response to changing physiological conditions. Akt/Protein kinase B a signaling pathway as a main regulator of FOXO to perform a diverse function in organisms. The present review summarizes the molecular and clinical aspects of FOXO transcription factor. And also elaborate the interaction of FOXO with the nucleosome remodelling complex to target genes, which is essential to cellular homeostasis.
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38
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Unterman TG. Regulation of Hepatic Glucose Metabolism by FoxO Proteins, an Integrated Approach. Curr Top Dev Biol 2018; 127:119-147. [DOI: 10.1016/bs.ctdb.2017.10.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Abstract
Non-alcoholic fatty liver disease (NAFLD) is a chronic progressive liver disorder that begins with simple hepatic steatosis and progresses to non-alcoholic steatohepatitis, fibrosis, cirrhosis, and even liver cancer. As the global prevalence of NAFLD rises, it is increasingly important that we understand its pathogenesis and develop effective therapies for this chronic disease. Forkhead box O (FOXO) transcription factors are key downstream regulators in the insulin/insulin-like growth factor 1 (IGF1) signaling pathway, and have been implicated in a range of cellular functions including the regulation of glucose, triglyceride, and cholesterol homeostasis. The role of FOXOs in the modulation of immune response and inflammation is complex, with reports of both pro- and anti-inflammatory effects. FOXOs are reported to protect against hepatic fibrosis by inhibiting proliferation and transdifferentiation of hepatic stellate cells. Mice that are deficient in hepatic FOXOs are more susceptible to non-alcoholic steatohepatitis than wild-type controls. In summary, FOXOs play a critical role in maintaining metabolic and cellular homeostasis in the liver, and dysregulation of FOXOs may be involved in NAFLD development.
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Affiliation(s)
- X Charlie Dong
- Department of Biochemistry and Molecular Biology, Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, Indianapolis, IN, USA
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40
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Li Y, Song Y, Zhao M, Guo Y, Yu C, Chen W, Shao S, Xu C, Zhou X, Zhao L, Zhang Z, Bo T, Xia Y, Proud CG, Wang X, Wang L, Zhao J, Gao L. A novel role for CRTC2 in hepatic cholesterol synthesis through SREBP-2. Hepatology 2017; 66:481-497. [PMID: 28395113 PMCID: PMC5575482 DOI: 10.1002/hep.29206] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 03/29/2017] [Accepted: 04/06/2017] [Indexed: 02/06/2023]
Abstract
Cholesterol synthesis is regulated by the transcription factor sterol regulatory element binding protein 2 (SREBP-2) and its target gene 3-hydroxy-3-methylglutaryl-coenzyme A reductase (HMGCR), which is the rate-limiting enzyme in cholesterol synthesis. Cyclic adenosine monophosphate-responsive element (CRE) binding protein-regulated transcription coactivator (CRTC) 2 is the master regulator of glucose metabolism. However, the effect of CRTC2 on cholesterol and its potential molecular mechanism remain unclear. Here, we demonstrated that CRTC2 expression and liver cholesterol content were increased in patients with high serum cholesterol levels who underwent resection of liver hemangiomas, as well as in mice fed a 4% cholesterol diet. Mice with adenovirus-mediated CRTC2 overexpression also showed elevated lipid levels in both serum and liver tissues. Intriguingly, hepatic de novo cholesterol synthesis was markedly increased under these conditions. In contrast, CRTC2 ablation in mice fed a 4% cholesterol diet (18 weeks) showed decreased lipid levels in serum and liver tissues compared with those in littermate wild-type mice. The expression of lipogenic genes (SREBP-2 and HMGCR) was consistent with hepatic CRTC2 levels. In vivo imaging showed enhanced adenovirus-mediated HMGCR-luciferase activity in adenovirus-mediated CRTC2 mouse livers; however, the activity was attenuated after mutation of CRE or sterol regulatory element sequences in the HMGCR reporter construct. The effect of CRTC2 on HMGCR in mouse livers was alleviated upon SREBP-2 knockdown. CRTC2 modulated SREBP-2 transcription by CRE binding protein, which recognizes the half-site CRE sequence in the SREBP-2 promoter. CRTC2 reduced the nuclear protein expression of forkhead box O1 and subsequently increased SREBP-2 transcription by binding insulin response element 1, rather than insulin response element 2, in the SREBP-2 promoter. CONCLUSION CRTC2 regulates the transcription of SREBP-2 by interfering with the recognition of insulin response element 1 in the SREBP-2 promoter by forkhead box O1, thus inducing SREBP-2/HMGCR signaling and subsequently facilitating hepatic cholesterol synthesis. (Hepatology 2017;66:481-497).
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41
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Link W, Fernandez-Marcos PJ. FOXO transcription factors at the interface of metabolism and cancer. Int J Cancer 2017. [PMID: 28631330 DOI: 10.1002/ijc.30840] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Diabetes refers to a group of metabolic diseases characterized by impaired insulin signalling and high blood glucose. A growing body of epidemiological evidence links diabetes to several types of cancer but the underlying molecular mechanisms are poorly understood. The signalling cascade connecting insulin and FOXO proteins provides a compelling example for a conserved pathway at the interface between insulin signalling and cancer. FOXOs are transcription factors that orchestrate programs of gene expression known to control a variety of processes in response to cellular stress. Genes regulated by this family of proteins are involved in the regulation of cellular energy production, oxidative stress resistance and cell viability and proliferation. Accordingly, FOXO factors have been shown to play an important role in the suppression of tumour growth and in the regulation of metabolic homeostasis. There is emerging evidence that deregulation of FOXO factors might account for the association between insulin resistance-related metabolic disorders and cancer.
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Affiliation(s)
- Wolfgang Link
- Centre for Biomedical Research (CBMR), University of Algarve, Campus of Gambelas, Building 8, room 2.22, Faro, 8005-139, Portugal.,Regenerative Medicine Program, Department of Biomedical Sciences and Medicine, University of Algarve, Campus de Gambelas, Faro, 8005-139, Portugal.,Algarve Biomedical Center (ABC), University of Algarve, Campus de Gambelas, Faro, 8005-139, Portugal
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42
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Zhao X, Karpac J. Muscle Directs Diurnal Energy Homeostasis through a Myokine-Dependent Hormone Module in Drosophila. Curr Biol 2017; 27:1941-1955.e6. [PMID: 28669758 DOI: 10.1016/j.cub.2017.06.004] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2017] [Revised: 04/26/2017] [Accepted: 06/01/2017] [Indexed: 02/04/2023]
Abstract
Inter-tissue communication is critical to control organismal energy homeostasis in response to temporal changes in feeding and activity or external challenges. Muscle is emerging as a key mediator of this homeostatic control through consumption of lipids, carbohydrates, and amino acids, as well as governing systemic signaling networks. However, it remains less clear how energy substrate usage tissues, such as muscle, communicate with energy substrate storage tissues in order to adapt with diurnal changes in energy supply and demand. Using Drosophila, we show here that muscle plays a crucial physiological role in promoting systemic synthesis and accumulation of lipids in fat storage tissues, which subsequently impacts diurnal changes in circulating lipid levels. Our data reveal that the metabolic transcription factor Foxo governs expression of the cytokine unpaired 2 (Upd2) in skeletal muscle, which acts as a myokine to control glucagon-like adipokinetic hormone (AKH) secretion from specialized neuroendocrine cells. Circulating AKH levels in turn regulate lipid homeostasis in fat body/adipose and the intestine. Our data also reveal that this novel myokine-dependent hormone module is critical to maintain diurnal rhythms in circulating lipids. This tissue crosstalk provides a putative mechanism that allows muscle to integrate autonomous energy demand with systemic energy storage and turnover. Together, these findings reveal a diurnal inter-tissue signaling network between muscle and fat storage tissues that constitutes an ancestral mechanism governing systemic energy homeostasis.
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Affiliation(s)
- Xiao Zhao
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA
| | - Jason Karpac
- Department of Molecular and Cellular Medicine, Texas A&M University Health Science Center, College Station, TX 77843, USA.
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43
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Tsuchiya K, Ogawa Y. Forkhead box class O family member proteins: The biology and pathophysiological roles in diabetes. J Diabetes Investig 2017; 8:726-734. [PMID: 28267275 PMCID: PMC5668485 DOI: 10.1111/jdi.12651] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 02/28/2017] [Indexed: 12/27/2022] Open
Abstract
Forkhead box class O family member proteins (FoxOs) of transcription factors are essential regulators of cellular homeostasis, including glucose and lipid metabolism, oxidative stress response and redox signaling, cell cycle progression, and apoptosis. Altered FoxO1 expression and activity have been associated with glucose intolerance, dyslipidemia and complications of diabetes. In the liver, they direct carbons to glucose or lipid utilization, thus providing a unifying mechanism for the two abnormalities of the diabetic liver: excessive glucose production, and increased lipid synthesis and secretion. In the pancreas, FoxO1 is necessary to maintain β-cell differentiation, and could be promising targets for β-cell regeneration. In endothelial cells, FoxOs strongly promote atherosclerosis through suppressing nitric oxide production and enhancing inflammatory responses. In the present review, we summarize the basic biology and pathophysiological significance of FoxOs in diabetes.
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Affiliation(s)
- Kyoichiro Tsuchiya
- Department of Diabetes, Endocrinology and Metabolism, Medical Hospital of Tokyo Medical and Dental University, Tokyo, Japan
| | - Yoshihiro Ogawa
- Department of Molecular Endocrinology and Metabolism, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.,Department of Medicine and Bioregulatory Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.,Japan Agency for Medical Research and Development, CREST, Tokyo, Japan
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44
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Zingg JM, Azzi A, Meydani M. α-Tocopheryl Phosphate Induces VEGF Expression via CD36/PI3Kγ in THP-1 Monocytes. J Cell Biochem 2017; 118:1855-1867. [PMID: 28059487 DOI: 10.1002/jcb.25871] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Accepted: 01/05/2017] [Indexed: 12/20/2022]
Abstract
The CD36 scavenger receptor binds several ligands and mediates ligand uptake and ligand-dependent signal transduction and gene expression, events that may involve CD36 internalization. Here we show that CD36 internalization in THP-1 monocytes is triggered by α-tocopherol (αT) and more strongly by α-tocopheryl phosphate (αTP) and EPC-K1, a phosphate diester of αTP and L-ascorbic acid. αTP-triggered CD36 internalization is prevented by the specific covalent inhibitor of selective lipid transport by CD36, sulfo-N-succinimidyl oleate (SSO). Moreover, SSO inhibited the CD36-mediated uptake of 14C-labelled αTP suggesting that αTP binding and internalization of CD36 is involved in cellular αTP uptake, whereas the uptake of αT was less affected. Similar to that, inhibition of selective lipid transport of the SR-BI scavenger receptor resulted mainly in reduction of αTP and not αT uptake. In contrast, uptake of αT was mainly inhibited by Dynasore, an inhibitor of clathrin-mediated endocytosis, suggesting that the differential regulatory effects of αTP and αT on signaling may be influenced by their different routes of uptake. Interestingly, αTP and EPC-K1 also reduced the neutral lipid content of THP-1 cells and the phagocytosis of fluorescent Staphylococcus aureus bioparticles. Moreover, induction of the vascular endothelial growth factor (VEGF) promoter activity by αTP occurred via CD36/PI3Kγ/Akt, as it could be inhibited by specific inhibitors of this pathway (SSO, Wortmannin, AS-605240). These results suggest that αTP activates PI3Kγ/Akt signaling leading to VEGF expression in monocytes after binding to and/or transport by CD36, a receptor known to modulate angiogenesis in response to amyloid beta, oxLDL, and thrombospondin. J. Cell. Biochem. 118: 1855-1867, 2017. © 2017 Wiley Periodicals, Inc.
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Affiliation(s)
- Jean-Marc Zingg
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. on Aging, Tufts University, Boston, Massachusetts 02111
| | - Angelo Azzi
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. on Aging, Tufts University, Boston, Massachusetts 02111
| | - Mohsen Meydani
- Vascular Biology Laboratory, JM USDA-Human Nutr. Res. Ctr. on Aging, Tufts University, Boston, Massachusetts 02111
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45
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Ju H, Kim T, Chung CM, Park J, Nikawa T, Park K, Choi I. Metabolic Suppression by 3-Iodothyronamine Induced Muscle Cell Atrophy via Activation of FoxO-Proteasome Signaling and Downregulation of Akt1-S6K Signaling. Biol Pharm Bull 2017; 40:576-582. [PMID: 28163294 DOI: 10.1248/bpb.b16-00653] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The homeostasis of muscle properties depends on both physical and metabolic stresses. Whereas physical stress entails metabolic response for muscle homeostasis, the latter does not necessarily involve the former and may thus solely affect the homeostasis. We here report that metabolic suppression by the hypometabolic agent 3-iodothyronamine (T1AM) induced muscle cell atrophy without physical stress. We observed that the oxygen consumption rate of C2C12 myotubes decreased 40% upon treatment with 75 µM T1AM for 6 h versus 10% in the vehicle (dimethyl sulfoxide) control. The T1AM treatment reduced cell diameter of myotubes by 15% compared to the control (p<0.05). The cell diameter was reversed completely by 9 h after T1AM was removed. The T1AM treatment also significantly suppressed the expression levels of heat shock protein 72 and αB-crystallin as well as the phosphorylation levels of Akt1, mammalian target of rapamycin (mTOR), S6K, forkhead box O1 (FoxO1) and FoxO3. In contrast, the levels of ubiquitin E3 ligase MuRF1 and chymotrypsin-like activity of proteasome were significantly elevated by T1AM treatment. These results suggest that T1AM-mediated metabolic suppression induced muscle cell atrophy via activation of catabolic signaling and inhibition of anabolic signaling.
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Affiliation(s)
- Hyunwoo Ju
- Division of Biological Science and Technology, College of Science and Technology, Yonsei University
| | - Taewan Kim
- Division of Biological Science and Technology, College of Science and Technology, Yonsei University
| | - Chan-Moon Chung
- Department of Chemistry and Medical Chemistry, College of Science and Technology, Yonsei University
| | - Junsoo Park
- Division of Biological Science and Technology, College of Science and Technology, Yonsei University
| | - Takeshi Nikawa
- Department of Nutritional Physiology, Institute of Health Biosciences, University of Tokushima Graduate School
| | | | - Inho Choi
- Division of Biological Science and Technology, College of Science and Technology, Yonsei University
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46
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Zingg JM, Hasan ST, Nakagawa K, Canepa E, Ricciarelli R, Villacorta L, Azzi A, Meydani M. Modulation of cAMP levels by high-fat diet and curcumin and regulatory effects on CD36/FAT scavenger receptor/fatty acids transporter gene expression. Biofactors 2017; 43:42-53. [PMID: 27355903 DOI: 10.1002/biof.1307] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2016] [Revised: 05/24/2016] [Accepted: 06/03/2016] [Indexed: 02/06/2023]
Abstract
Curcumin, a polyphenol from turmeric (Curcuma longa), reduces inflammation, atherosclerosis, and obesity in several animal studies. In Ldlr-/- mice fed a high-fat diet (HFD), curcumin reduces plasma lipid levels, therefore contributing to a lower accumulation of lipids and to reduced expression of fatty acid transport proteins (CD36/FAT, FABP4/aP2) in peritoneal macrophages. In this study, we analyzed the molecular mechanisms by which curcumin (500, 1000, 1500 mg/kg diet, for 4 months) may influence plasma and tissue lipid levels in Ldlr-/- mice fed an HFD. In liver, HFD significantly suppressed cAMP levels, and curcumin restored almost normal levels. Similar trends were observed in adipose tissues, but not in brain, skeletal muscle, spleen, and kidney. Treatment with curcumin increased phosphorylation of CREB in liver, what may play a role in regulatory effects of curcumin in lipid homeostasis. In cell lines, curcumin increased the level of cAMP, activated the transcription factor CREB and the human CD36 promoter via a sequence containing a consensus CREB response element. Regulatory effects of HFD and Cur on gene expression were observed in liver, less in skeletal muscle and not in brain. Since the cAMP/protein kinase A (PKA)/CREB pathway plays an important role in lipid homeostasis, energy expenditure, and thermogenesis by increasing lipolysis and fatty acid β-oxidation, an increase in cAMP levels induced by curcumin may contribute to its hypolipidemic and anti-atherosclerotic effects. © 2016 BioFactors, 43(1):42-53, 2017.
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Affiliation(s)
- Jean-Marc Zingg
- Vascular Biology Laboratory, JM USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
| | - Syeda T Hasan
- Vascular Biology Laboratory, JM USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
| | - Kiyotaka Nakagawa
- Vascular Biology Laboratory, JM USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
| | - Elisa Canepa
- Department of Experimental Medicine, Section of General Pathology, University of Genoa, Genoa, Italy
| | - Roberta Ricciarelli
- Department of Experimental Medicine, Section of General Pathology, University of Genoa, Genoa, Italy
| | - Luis Villacorta
- Cardiovascular Center, Department of Internal Medicine, University of Michigan Medical Center, Ann Arbor, MI, USA
| | - Angelo Azzi
- Vascular Biology Laboratory, JM USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
| | - Mohsen Meydani
- Vascular Biology Laboratory, JM USDA-Human Nutrition Research Center on Aging, Tufts University, Boston, MA, 02111, USA
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Abstract
Forkhead box (Fox) transcription factors are evolutionarily conserved in organisms ranging from yeast to humans. They regulate diverse biological processes both during development and throughout adult life. Mutations in many Fox genes are associated with human disease and, as such, various animal models have been generated to study the function of these transcription factors in mechanistic detail. In many cases, the absence of even a single Fox transcription factor is lethal. In this Primer, we provide an overview of the Fox family, highlighting several key Fox transcription factor families that are important for mammalian development.
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Affiliation(s)
- Maria L Golson
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Klaus H Kaestner
- Department of Genetics and Institute for Diabetes, Obesity, and Metabolism, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
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Lin J, Wang T, Li Y, Wang M, Li H, Irwin MG, Xia Z. N-Acetylcysteine Restores Sevoflurane Postconditioning Cardioprotection against Myocardial Ischemia-Reperfusion Injury in Diabetic Rats. J Diabetes Res 2016; 2016:9213034. [PMID: 26783539 PMCID: PMC4691468 DOI: 10.1155/2016/9213034] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/30/2015] [Accepted: 08/26/2015] [Indexed: 02/07/2023] Open
Abstract
The effect of sevoflurane postconditioning (sevo-postC) cardioprotection is compromised in diabetes which is associated with increased oxidative stress. We hypothesized that antioxidant N-Acetylcysteine may enhance or restore sevo-postC cardioprotection in diabetes. Control or streptozotocin-induced Type 1 diabetic rats were either untreated or treated with N-Acetylcysteine for four weeks starting at five weeks after streptozotocin injection and were subjected to myocardial ischemia-reperfusion injury (IRI), in the absence or presence of sevo-postC. Diabetes showed reduction of cardiac STAT3 activation (p-STAT3) and adiponectin with concomitantly increase of FoxO1 and CD36, which associated with reduced sevo-postC cardioprotection. N-Acetylcysteine and sevo-postC synergistically reduced the infarct size in diabetic groups. N-Acetylcysteine remarkably increased cardiac p-STAT3 which was further enhanced by sevo-postC. N-Acetylcysteine but not sevo-postC decreased myocardial FoxO1 while sevo-postC but not N-Acetylcysteine significantly increased myocardiac adiponectin in diabetic rats. It is concluded that late stage diabetic rats displayed reduction of cardiac p-STAT3, adiponectin deficiency, and increase of FoxO1 and CD36 expression, which may be responsible for the loss of myocardial responsiveness to sevo-postC cardioprotection. N-Acetylcysteine restored Sevo-postC cardioprotection in diabetes possibly through enhancing cardiac p-STAT3 and adiponectin and reducing Fox1 and CD36.
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Affiliation(s)
- Jiefu Lin
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou 510642, China
| | - Tingting Wang
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
- Department of Anesthesiology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yalan Li
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou 510642, China
- *Yalan Li: and
| | - Mengxia Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jinan University, Guangzhou 510642, China
| | - Haobo Li
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Michael G. Irwin
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
| | - Zhengyuan Xia
- Department of Anesthesiology, The University of Hong Kong, Pokfulam, Hong Kong
- Department of Anesthesiology, Affiliated Hospital of Guangdong Medical College, Zhanjiang 524023, China
- *Zhengyuan Xia:
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Höybye C, Wahlström E, Tollet-Egnell P, Norstedt G. Metabolomics: a tool for the diagnosis of GH deficiency and for monitoring GH replacement? Endocr Connect 2014; 3:200-6. [PMID: 25312907 PMCID: PMC4212684 DOI: 10.1530/ec-14-0098] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The diagnostic value of insulin-like growth factor 1 (IGF1) for GH deficiency (GHD) in adults is not optimal. Molecular profiling could be used for biomarker discovery. The aim of this pilot study was to compare the serum metabolome between GHD patients and healthy controls, and identification of potential markers for diagnosis and/or for individual GH dosing. A total of ten patients with GHD, median age of 55 years and BMI of 27 kg/m(2), were compared with ten healthy age- and gender-matched controls. The serum metabolic profiles were generated using gas chromatography-coupled mass spectroscopy on fasting samples taken in the morning from the controls and at baseline and during 6 months of GH replacement in the patients with GHD. The difference in low-molecular weight compounds (LMC) distinguished the healthy controls from GHD patients. Among 285 measured metabolites, 13 were identified as being most important in differentiating GHD patients from controls. Of these, 11 could not be structurally annotated but many were classified as lipids. The difference in the LMC pattern persisted despite normalisation of IGF1 following GH replacement. GH replacement increased the levels of specific fatty acid compounds and decreased the levels of certain amino acids. No metabolite changed in response to GH treatment, to the same extent as IGF1. The measurement of 285 metabolites resulted in a unique pattern in GHD, but changes in the metabolite patterns during GH treatment were limited. The utility of metabolomics to find new markers in GHD and GH replacement remains to be further elucidated.
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Affiliation(s)
- Charlotte Höybye
- Department of EndocrinologyMetabolism and Diabetology, Karolinska University Hospital, 171 76 Stockholm, SwedenDepartment of Molecular Medicine and SurgeryKarolinska Institute, Stockholm, Sweden Department of EndocrinologyMetabolism and Diabetology, Karolinska University Hospital, 171 76 Stockholm, SwedenDepartment of Molecular Medicine and SurgeryKarolinska Institute, Stockholm, Sweden
| | - Erik Wahlström
- Department of EndocrinologyMetabolism and Diabetology, Karolinska University Hospital, 171 76 Stockholm, SwedenDepartment of Molecular Medicine and SurgeryKarolinska Institute, Stockholm, Sweden
| | - Petra Tollet-Egnell
- Department of EndocrinologyMetabolism and Diabetology, Karolinska University Hospital, 171 76 Stockholm, SwedenDepartment of Molecular Medicine and SurgeryKarolinska Institute, Stockholm, Sweden
| | - Gunnar Norstedt
- Department of EndocrinologyMetabolism and Diabetology, Karolinska University Hospital, 171 76 Stockholm, SwedenDepartment of Molecular Medicine and SurgeryKarolinska Institute, Stockholm, Sweden
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