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Alsabri SG, Guedi GG, Najar M, Merimi M, Lavoie F, Grabs D, Fernandes J, Pelletier JP, Martel-Pelletier J, Benderdour M, Fahmi H. Epigenetic regulation of 15-lipoxygenase-1 expression in human chondrocytes by promoter methylation. Inflamm Res 2023; 72:2145-2153. [PMID: 37874359 DOI: 10.1007/s00011-023-01805-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 09/23/2023] [Accepted: 10/10/2023] [Indexed: 10/25/2023] Open
Abstract
OBJECTIVE AND DESIGN 15-Lipoxygenase-1 (15-LOX-1) catalyzes the biosynthesis of many anti-inflammatory and immunomodulatory lipid mediators and was reported to have protective properties in several inflammatory conditions, including osteoarthritis (OA). This study was designed to evaluate the expression of 15-LOX-1 in cartilage from normal donors and patients with OA, and to determine whether it is regulated by DNA methylation. METHODS Cartilage samples were obtained at autopsy from normal knee joints and from OA-affected joints at the time of total knee joint replacement surgery. The expression of 15-LOX-1 was evaluated using real-time polymerase chain reaction (PCR). The role of DNA methylation in 15-LOX-1 expression was assessed using the DNA methyltransferase inhibitor 5-Aza-2'-desoxycytidine (5-Aza-dC). The effect of CpG methylation on 15-LOX-1 promoter activity was evaluated using a CpG-free luciferase vector. The DNA methylation status of the 15-LOX-1 promoter was determined by pyrosequencing. RESULTS Expression of 15-LOX-1 was upregulated in OA compared to normal cartilage. Treatment with 5-Aza-dC increased 15-LOX-1 mRNA levels in chondrocytes, and in vitro methylation decreased 15-LOX-1 promoter activity. There was no difference in the methylation status of the 15-LOX-1 gene promoter between normal and OA cartilage. CONCLUSION The expression level of 15-LOX-1 was elevated in OA cartilage, which may be part of a repair process. The upregulation of 15-LOX-1 in OA cartilage was not associated with the methylation status of its promoter, suggesting that other mechanisms are involved in its upregulation.
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Affiliation(s)
- Sami G Alsabri
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Gadid G Guedi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Mehdi Najar
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Makram Merimi
- LBEES, Genetics and Immune Cell Therapy Unit, Faculty of Sciences, University Mohamed Premier, Oujda, Morocco
| | - Frédéric Lavoie
- Departement of Orthopedic Surgery, Centre Hospitalier de L'Université de Montréal (CHUM), Montréal, Québec, Canada
| | - Detlev Grabs
- Department of Anatomy, Research Unit in Clinical and Functional Anatomy, Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada
| | - Julio Fernandes
- Departement of Orthopedic Surgery, Centre Hospitalier de L'Université de Montréal (CHUM), Montréal, Québec, Canada
- Orthopedics Research Laboratory, Research Center, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, Québec, H4J 1C5, Canada
| | - Jean-Pierre Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Johanne Martel-Pelletier
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada
| | - Mohamed Benderdour
- Orthopedics Research Laboratory, Research Center, Hôpital du Sacré-Cœur de Montréal, Université de Montréal, Montréal, Québec, H4J 1C5, Canada
| | - Hassan Fahmi
- Osteoarthritis Research Unit, University of Montreal Hospital Research Center (CRCHUM), Montreal, QC, Canada.
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2
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Kianfar S, Salimi V, Jahangirifard A, Mirtajani SB, Vaezi MA, Yavarian J, Mokhtari-Azad T, Tavakoli-Yaraki M. 15-lipoxygenase and cyclooxygenase expression profile and their related modulators in COVID-19 infection. Prostaglandins Leukot Essent Fatty Acids 2023; 197:102587. [PMID: 37716021 DOI: 10.1016/j.plefa.2023.102587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 08/13/2023] [Accepted: 08/30/2023] [Indexed: 09/18/2023]
Abstract
BACKGROUND The role of the lipoxygenase (LOX) and cyclooxygenase (COX) enzymes in maintaining cellular homeostasis and regulating immune responses promoted us in this study to analyze the pattern of changes in 15-lipoxygenase and cyclooxygenase isoforms and their related cytokines in SARS-CoV-2 infection. METHODS 15-LOX-1, 15-LOX-2, COX-1 and COX-2 gene expression levels were determined using qRT-PCR in nasopharynx specimens from patients with severe [N = 40] and non-severe [N = 40] confirmed SARS-CoV-2 infections and healthy controls. Circulating levels of lL-6, lL-10, PGE2, and IFN-γ were measured in patients and healthy controls using ELISA assay. The associations between the measured variables and the patient's clinic-pathological characteristics were assessed for all groups. RESULTS The expression level of 15-LOX-1 was elevated significantly in male patients with severe infection; although female patients showed a different expression profile. 15-LOX-2 expression level was considerably increased in male patients with severe infection; while changes in its expression remained inconclusive in female patients. The relationship between 15-LOX expression and the male gender was prominent. Both COX isoforms expression showed elevation in male and female patients that were correlated with disease severity. The simultaneous increase in lL-6, PGE2 and IFN-γ levels also decrease in lL-10 in patients with severe infection indicating the possible regulatory network related to the COX and 15-LOX enzymes in the output of the SARS-CoV-2 infection. CONCLUSION The results of this study determined the pattern of possible changes in key enzymes of prostaglandin and eicosanoids synthesis pathway and their mediators, which can be helpful in mapping the SARS-CoV-2 pathogenicity and pharmaceutical approaches.
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Affiliation(s)
- Sara Kianfar
- Bahrami Children Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Alireza Jahangirifard
- Lung Transplant Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Bashir Mirtajani
- Lung Transplant Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Vaezi
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran; Research Center for Antibiotic Stewardship & Antimicrobial Resistance, Tehran university of Medical Sciences, Tehran, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Tavakoli-Yaraki
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Wei D, Tian X, Zhai X, Sun C. Adipose Tissue Macrophage-Mediated Inflammation in Obesity: A Link to Posttranslational Modification. Immunol Invest 2023:1-25. [PMID: 37129471 DOI: 10.1080/08820139.2023.2205883] [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: 05/03/2023]
Abstract
Adipose tissue macrophages (ATM) are an essential type of immune cells in adipose tissue. Obesity induces the inflammation of adipose tissues, as expressed by ATM accumulation, that is more likely to become a source of systemic metabolic diseases, including insulin resistance. The process is characterized by the transcriptional regulation of inflammatory pathways by virtue of signaling molecules such as cytokines and free fatty acids. Notably, posttranslational modification (PTM) is a key link for these signaling molecules to trigger the proinflammatory or anti-inflammatory phenotype of ATMs. This review focuses on summarizing the functions and molecular mechanisms of ATMs regulating inflammation in obese adipose tissue. Furthermore, the role of PTM is elaborated, hoping to identify new horizons of treatment and prevention for obesity-mediated metabolic disease.
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Affiliation(s)
- Dongqin Wei
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Xin Tian
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Xiangyun Zhai
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
| | - Chao Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shanxi, China
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Chen C, Liu T, Tang Y, Luo G, Liang G, He W. Epigenetic regulation of macrophage polarization in wound healing. BURNS & TRAUMA 2023; 11:tkac057. [PMID: 36687556 PMCID: PMC9844119 DOI: 10.1093/burnst/tkac057] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 11/16/2022] [Indexed: 06/01/2023]
Abstract
The immune microenvironment plays a critical role in regulating skin wound healing. Macrophages, the main component of infiltrating inflammatory cells, play a pivotal role in shaping the immune microenvironment in the process of skin wound healing. Macrophages comprise the classic proinflammatory M1 subtype and anti-inflammatory M2 population. In the early inflammatory phase of skin wound closure, M1-like macrophages initiate and amplify the local inflammatory response to disinfect the injured tissue. In the late tissue-repairing phase, M2 macrophages are predominant in wound tissue and limit local inflammation to promote tissue repair. The biological function of macrophages is tightly linked with epigenomic organization. Transcription factors are essential for macrophage polarization. Epigenetic modification of transcription factors determines the heterogeneity of macrophages. In contrast, transcription factors also regulate the expression of epigenetic enzymes. Both transcription factors and epigenetic enzymes form a complex network that regulates the plasticity of macrophages. Here, we describe the latest knowledge concerning the potential epigenetic mechanisms that precisely regulate the biological function of macrophages and their effects on skin wound healing.
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Affiliation(s)
| | | | - Yuanyang Tang
- State Key Laboratory of Trauma, Burn and Combined Injury, Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
- Academy of Biological Engineering, Chongqing University, Chongqing, China
| | - Gaoxing Luo
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
| | - Guangping Liang
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
| | - Weifeng He
- Correspondence. Gaoxing Luo, ; Guangping Liang, ; Weifeng He,
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Histone methylation in pre-cancerous liver diseases and hepatocellular carcinoma: recent overview. CLINICAL & TRANSLATIONAL ONCOLOGY : OFFICIAL PUBLICATION OF THE FEDERATION OF SPANISH ONCOLOGY SOCIETIES AND OF THE NATIONAL CANCER INSTITUTE OF MEXICO 2023; 25:1594-1605. [PMID: 36650321 DOI: 10.1007/s12094-023-03078-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 01/07/2023] [Indexed: 01/19/2023]
Abstract
Hepatocellular carcinoma (HCC) is the prevalent form of liver cancer in adults and the fourth most common cause of cancer-related death worldwide. HCC predominantly arises in the context of cirrhosis as a result of chronic liver disease, injury and inflammation. Full-blown HCC has poor prognosis because it is highly aggressive and resistant to therapy. Consequently, interventions that can prevent or restrain HCC emergence from pre-cancerous diseased liver are a desirable strategy. Histone methylation is a dynamic, reversible epigenetic modification involving the addition or removal of methyl groups from lysine, arginine or glutamine residues. Aberrant activity of histone methylation writers, erases and readers has been implicated in several cancer types, including HCC. In this review, we provide an overview of research on the role of histone methylation in pre-cancerous and cancerous HCC published over the last 5 years. In particular, we present the evidence linking environmental factors such as diet, viral infections and carcinogenic agents with dysregulation of histone methylation during liver cancer progression with the aim to highlight future therapeutic possibilities.
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6
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Ferroptosis in hematological malignancies and its potential network with abnormal tumor metabolism. Biomed Pharmacother 2022; 148:112747. [PMID: 35240523 DOI: 10.1016/j.biopha.2022.112747] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 02/12/2022] [Accepted: 02/21/2022] [Indexed: 12/24/2022] Open
Abstract
Ferroptosis, a new type of regulated cell death, displays characteristics that transparently differ from apoptosis, autophagy and necroptosis. There is growing appreciation that targeting ferroptosis is potentially a novel strategy in anti-tumor therapy, especially for invasive malignancies demonstrating resistance to chemotherapy. Almost all types of cancer cells depend on abnormal metabolic activities to participate in vicious progression, giving the possibility to interfere with underlying metabolic preferences and compromise malignant cells by inducing ferroptosis. In this perspective, we give an overview of potential interactions between ferroptosis and abnormal tumor metabolism, with special focus on systematic researches in hematological malignancies.
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Rubio-Tomás T. The SMYD family proteins in immunology: An update of their obvious and non-obvious relations with the immune system. Heliyon 2021; 7:e07387. [PMID: 34235289 PMCID: PMC8246384 DOI: 10.1016/j.heliyon.2021.e07387] [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: 05/18/2021] [Revised: 06/15/2021] [Accepted: 06/21/2021] [Indexed: 12/05/2022] Open
Abstract
Epigenetics is an emerging field, due to its relevance in the regulation of a wide range of biological processes. The Su(Var)3–9, Enhancer-of-zeste and Trithorax (SET) and Myeloid, Nervy, and DEAF-1 (MYND) domain-containing (SMYD) proteins, named SMYD1, SMYD2, SMYD3, SMYD4 and SMYD5, are enzymes that catalyse methylation of histone and non-histone substrates, thereby playing a key role in gene expression regulation in many biological contexts, such as muscle development and physiology, haematopoiesis and many types of cancer. This review focuses on a relatively unexplored aspect of SMYD family members - their relation with immunology. Here, immunology is defined in the broadest sense of the word, including basic research on macrophage function or host immunity against pathogen infection, as well as clinical studies, most of which are centred on blood cancers.
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Affiliation(s)
- Teresa Rubio-Tomás
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036, Barcelona, Spain.,School of Medicine, University of Crete, 70013, Herakleion, Crete, Greece.,Biomedical Sciences Research Center Alexander Fleming, 16672, Vari, Greece
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8
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Wang G, Huang Y, Yang F, Tian X, Wang K, Liu L, Fan Y, Li X, Li L, Shi B, Hao Y, Xia C, Nie Q, Xin Y, Shi Z, Ma L, Xu D, Liu C. High expression of SMYD3 indicates poor survival outcome and promotes tumour progression through an IGF-1R/AKT/E2F-1 positive feedback loop in bladder cancer. Aging (Albany NY) 2020; 12:2030-2048. [PMID: 32007952 PMCID: PMC7041758 DOI: 10.18632/aging.102718] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2019] [Accepted: 01/02/2020] [Indexed: 12/12/2022]
Abstract
The AKT/mTOR pathway is critical for bladder cancer (BC) pathogenesis and is hyper-activated during BC progression. In the present study, we identified a novel positive feedback loop involving oncogenic factors histone methyltransferase SMYD3, insulin-like growth factor-1 receptor (IGF-1R), AKT, and E2F-1. SMYD3 expression was significantly up-regulated in BC tumors and positively associated with histological grade, lymph node metastasis, and shorter patient survival. Depletion of SMYD3 inhibited BC cell proliferation, colony formation, migration, invasion, and xenograft tumor growth. Mechanistically, SMYD3 inhibition led to the diminished AKT/mTOR signaling activity, thereby triggering deleterious effects on BC cells. Furthermore, SMYD3 directly activates the expression of IGF-1R, a critical activator of AKT in BC, by inducing hyper-methylation of histone H3-K4 and subsequent chromatin remodeling in the IGF-1R promoter region. On the other hand, E2F-1, a downstream factor of the AKT pathway, binds to the E2F-1 binding motifs at the SMYD3 promoter and consequently induces SMYD3 transcription and expression. Thus, SMYD3/IGF-1R/AKT/E2F-1 forms a positive feedback loop leading to the hyper-activated AKT signaling. Our findings provide not only profound insights into SMYD3-mediated oncogenic activity but also present a unique avenue for treating BC by directly disrupting this signaling circuit.
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Affiliation(s)
- Guoliang Wang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Yi Huang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Feilong Yang
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Xiaojun Tian
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Kun Wang
- Department of Urology, Tianjin Medical University Cancer Institute and Hospital, National Clinical Research Centre for Cancer, Key Lab for Cancer Prevention and Therapy, Tianjin, China
| | - Li Liu
- School of Nursing, Beijing University of Chinese Medicine, Beijing, China
| | - Yidong Fan
- Department of Urology, Shandong University Qilu Hospital, Jinan, China
| | - Xiaofeng Li
- Department of Urology, Shandong University Qilu Hospital, Jinan, China
| | - Luchao Li
- Department of Urology, Shandong University Qilu Hospital, Jinan, China
| | - Benkang Shi
- Department of Urology, Shandong University Qilu Hospital, Jinan, China
| | - Yichang Hao
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Chuanyou Xia
- Department of Medicine, Bioclinicum and Centre for Molecular Medicine, Karolinska University Hospital Solna and Karolinska Institutet, Stockholm, Sweden
| | - Qingsheng Nie
- Department of Urology, The Central Hospital of Zibo, Zibo, China
| | - Yue Xin
- Department of Urology, Chifeng University Second Hospital, Chifeng, China
| | - Zhenfeng Shi
- Department of Urology, The People's Hospital of Xinjiang Uyghur Autonomous Region, Xinjiang, China
| | - Lulin Ma
- Department of Urology, Peking University Third Hospital, Beijing, China
| | - Dawei Xu
- Department of Medicine, Bioclinicum and Centre for Molecular Medicine, Karolinska University Hospital Solna and Karolinska Institutet, Stockholm, Sweden.,Karolinska Institute-Shandong University Collaborative Laboratory for Cancer and Stem Cell Research, Jinan, China
| | - Cheng Liu
- Department of Urology, Peking University Third Hospital, Beijing, China
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9
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Zhang Y, Li C, Yang Z. Is MYND Domain-Mediated Assembly of SMYD3 Complexes Involved in Calcium Dependent Signaling? Front Mol Biosci 2019; 6:121. [PMID: 31737645 PMCID: PMC6837996 DOI: 10.3389/fmolb.2019.00121] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 10/17/2019] [Indexed: 12/17/2022] Open
Abstract
Macromolecular complexes are essential to intracellular signal transduction by creating signaling niches and enabling a chain of reactions that transmit external signals into various cellular responses. Analysis of SMYD3 interactome indicates this protein lysine methyltransferase might be involved in calcium dependent signaling pathways through forming complexes with the phospholipase PLCB3, calcium/calmodulin dependent kinase CAMK2B, or calcineurin inhibitor RCAN3. SMYD3 is well-known as a histone H3K4 methyltransferase involved in epigenetic transcriptional regulation; however, any roles SMYD3 may play in signaling transduction remain unknown. KEGG pathway enrichment analysis reveals the SMYD3 interacting proteins are overrepresented in several signaling pathways such as estrogen signaling pathway, NOD-like receptor signaling pathway, and WNT signaling pathway. Sequence motif scanning reveals a significant enrichment of PXLXP motif in SMYD3 interacting proteins. The MYND domain of SMYD3 is known to bind to the PXLXP motif. The enrichment of the PXLXP motif suggests that the MYND domain is likely to be a key interaction module that mediates formation of some SMYD3 complexes. The presence of the PXLXP motifs in PLCB3 and CAMK2B indicates the potential role of the MYND domain in mediating complex formation in signaling. The structural basis of SMYD3 MYND domain-mediated interactions is unknown. The only available MYND-peptide complex structure suggests the MYND domain-mediated interaction is likely transient and dynamic. The transient nature will make this domain well-suited to mediate signaling transduction processes where it may allow rapid responses to cellular perturbations and changes in environment.
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Affiliation(s)
- Yingxue Zhang
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI, United States
| | - Chunying Li
- Center for Molecular and Translational Medicine, Georgia State University, Atlanta, GA, United States
| | - Zhe Yang
- Department of Biochemistry, Microbiology, and Immunology, Wayne State University School of Medicine, Detroit, MI, United States
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10
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Barooni AB, Ghorbani M, Salimi V, Alimohammadi A, Khamseh ME, Akbari H, Imani M, Nourbakhsh M, Sheikhi A, Shirian FI, Ameri M, Tavakoli-Yaraki M. Up-regulation of 15-lipoxygenase enzymes and products in functional and non-functional pituitary adenomas. Lipids Health Dis 2019; 18:152. [PMID: 31288808 PMCID: PMC6617742 DOI: 10.1186/s12944-019-1089-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 06/13/2019] [Indexed: 12/24/2022] Open
Abstract
Background Pituitary adenoma accounts as a complex and multifactorial intracranial neoplasm with wide range of clinical symptoms which its underlying molecular mechanism has yet to be determined. The bioactive lipid mediators received attentions toward their contribution in cancer cell proliferation, progression and death. Amongst, 15-Lipoxygense (15-Lox) enzymes and products display appealing role in cancer pathogenesis which their possible effect in pituitary adenoma tumor genesis is perused in the current study. Methods The 15-Lipoxygenses isoforms expression level was evaluated in tumor tissues of prevalent functional and non-functional pituitary adenomas and normal pituitary tissues via Real-Time PCR. The circulating levels of 15(S) HETE and 13(S) HODE as 15-Lox main products were assessed in serum of patients and healthy subjects using enzyme immunoassay kits. Results Our results revealed that 15-Lox-1 and 15-Lox-2 expression levels were elevated in tumor tissues of pituitary adenomas comparing to normal pituitary tissues. The elevated levels of both isoforms were accompanied with 15(S) HETE and 13(S) HODE elevation in the serum of patients. The 15-Lox-1 expression and activity was higher in invasive tumors as well as tumors with bigger size indicating the possible pro-tumorigenic role of 15-Lox-1, more than 15-Lox-2 in pituitary adenomas. The diagnostic value of 15-Lipoxygense isoforms and products were considerable between patients and healthy groups. Conclusion The possible involvement of 15-Lipoxygense pathway especially 15-Lox-1 in the regulation of pituitary tumor growth and progression may open up new molecular mechanism regarding pituitary adenoma pathogenesis and might shed light on its new therapeutic strategies.
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Affiliation(s)
- Alaleh Bayat Barooni
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mohammad Ghorbani
- Division of Vascular and Endovascular Neurosurgery, Firoozgar Hospital, Iran University of Medical Sciences, Tehran, Iran
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Mohammad E Khamseh
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Hamideh Akbari
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran.,Clinical Research Development Unit (CRDU), Sayad Shirazi Hospital, Golestan University of Medical Sciences, Gorgan, Iran
| | - Mehrnaz Imani
- Endocrine Research Center, Institute of Endocrinology and Metabolism, Iran University of Medical Sciences (IUMS), Tehran, Iran
| | - Mitra Nourbakhsh
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Alireza Sheikhi
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Farzad Izak Shirian
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Maryam Ameri
- Forensic Medicine Department, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Masoumeh Tavakoli-Yaraki
- Department of Biochemistry, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Snodgrass RG, Brüne B. Regulation and Functions of 15-Lipoxygenases in Human Macrophages. Front Pharmacol 2019; 10:719. [PMID: 31333453 PMCID: PMC6620526 DOI: 10.3389/fphar.2019.00719] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 06/05/2019] [Indexed: 12/15/2022] Open
Abstract
Lipoxygenases (LOXs) catalyze the stereo-specific peroxidation of polyunsaturated fatty acids (PUFAs) to their corresponding hydroperoxy derivatives. Human macrophages express two arachidonic acid (AA) 15-lipoxygenating enzymes classified as ALOX15 and ALOX15B. ALOX15, which was first described in 1975, has been extensively characterized and its biological functions have been investigated in a number of cellular systems and animal models. In macrophages, ALOX15 functions to generate specific phospholipid (PL) oxidation products crucial for orchestrating the nonimmunogenic removal of apoptotic cells (ACs) as well as synthesizing precursor lipids required for production of specialized pro-resolving mediators (SPMs) that facilitate inflammation resolution. The discovery of ALOX15B in 1997 was followed by comprehensive analyses of its structural properties and reaction specificities with PUFA substrates. Although its enzymatic properties are well described, the biological functions of ALOX15B are not fully understood. In contrast to ALOX15 whose expression in human monocyte-derived macrophages is strictly dependent on Th2 cytokines IL-4 and IL-13, ALOX15B is constitutively expressed. This review aims to summarize the current knowledge on the regulation and functions of ALOX15 and ALOX15B in human macrophages.
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Affiliation(s)
- Ryan G Snodgrass
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
| | - Bernhard Brüne
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
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12
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Amplification of SMYD3 promotes tumorigenicity and intrahepatic metastasis of hepatocellular carcinoma via upregulation of CDK2 and MMP2. Oncogene 2019; 38:4948-4961. [PMID: 30842588 DOI: 10.1038/s41388-019-0766-x] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 01/04/2019] [Accepted: 01/23/2019] [Indexed: 12/13/2022]
Abstract
SMYD3, a member that belongs to the SET and MYND-domain (SMYD) family, has also been proven to largely participate in gene transcription regulation and progression of several human cancers as a histone lysine methyltransferase. However, the role and significance of SMYD3 in both the clinic and progression of hepatocellular carcinoma (HCC) remain unclear. Herein, we find that SMYD3 is increased in cirrhotic livers, and strikingly upregulated in hepatocellular carcinoma (HCC) tissues and cell lines. Subsequent analyses suggest that high expression level of SMYD3 significantly correlates with the malignant characteristics of HCC, and predicts poor prognosis in patients. Our results show that overexpression of SMYD3 increases, while silencing of SMYD3 inhibits, cell proliferation, invasiveness and tumorigenicity both in vitro and in vivo. SMYD3 also promotes intrahepatic metastasis of HCC cells. For the mechanisms, we identify that SMYD3 bound to CDK2 and MMP2 promoter and increased H3K4me3 modification at the corresponding promoters to promote gene transcription. Importantly, pharmacological targeting of SMYD3 with BCI-121 inhibitor effectively repressed the tumorigenicity of HCC cells. Finally, our results show that gene locus amplification is a cause for SMYD3 overexpression in HCC. These findings not only uncover that SMYD3 overexpression promotes the tumorigenicity and intrahepatic metastasis of HCC cell via upregulation of CDK2 and MMP2, but also suggest SMYD3 could be a practical prognosis marker or therapeutic target against the disease.
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Çolakoğlu M, Tunçer S, Banerjee S. Emerging cellular functions of the lipid metabolizing enzyme 15-Lipoxygenase-1. Cell Prolif 2018; 51:e12472. [PMID: 30062726 DOI: 10.1111/cpr.12472] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Accepted: 04/22/2018] [Indexed: 02/06/2023] Open
Abstract
The oxygenation of polyunsaturated fatty acids such as arachidonic and linoleic acid through lipoxygenases (LOXs) and cyclooxygenases (COXs) leads to the production of bioactive lipids that are important both in the induction of acute inflammation and its resolution. Amongst the several isoforms of LOX that are expressed in mammals, 15-LOX-1 was shown to be important both in the context of inflammation, being expressed in cells of the immune system, and in epithelial cells where the enzyme has been shown to crosstalk with a number of important signalling pathways. This review looks into the latest developments in understanding the role of 15-LOX-1 in different disease states with emphasis on the emerging role of the enzyme in the tumour microenvironment as well as a newly re-discovered form of cell death called ferroptosis. We also discuss future perspectives on the feasibility of use of this protein as a target for therapeutic interventions.
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Affiliation(s)
- Melis Çolakoğlu
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Sinem Tunçer
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
| | - Sreeparna Banerjee
- Department of Biological Sciences, Middle East Technical University, Ankara, Turkey
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14
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12/15 lipoxygenase: A crucial enzyme in diverse types of cell death. Neurochem Int 2018; 118:34-41. [PMID: 29627380 DOI: 10.1016/j.neuint.2018.04.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/06/2018] [Accepted: 04/04/2018] [Indexed: 12/31/2022]
Abstract
The 12/15-lipoxygenase (12/15-LOX) enzymes react with polyunsaturated fatty acids producing active lipid metabolites that are involved in plethora of human diseases including neurological disorders. A great many of elegant studies over the last decades have contributed to unraveling the mechanism how 12/15-lipoxygenase play a role in these diseases. And the way it works is mainly through apoptosis. However, recent years have found that the way 12/15-lipoxygenase works is also related to autophagy and ferroptosis, a newly defined type of cell death by Stockwell's lab in 2012. Figuring out how 12/15-lipoxygenase participate in these modes of cell death is of vital importance to understand its role in disease. The review aims to give a sight on our current knowledge on the role of this enzyme in apoptosis, autophagy and ferroptosis. And the relevant diseases that 12/15-lipoxygenase may be involved.
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15
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Liu N, Sun S, Yang X. Prognostic significance of stromal SMYD3 expression in colorectal cancer of TNM stage I-III. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:8901-8907. [PMID: 31966758 PMCID: PMC6965370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Accepted: 07/26/2017] [Indexed: 06/10/2023]
Abstract
BACKGROUND SET and MYND domain-containing protein 3 (SMYD3) is a histone methyltransferases and it promotes progression of many kinds of cancers including lung cancer, ovarian cancer and gastric cancer. In colorectal cancer (CRC), SMYD3 is proved to stimulate the proliferation of cancer cells, but the clinical significance of SMYD3 in CRC has not been elucidated. METHODS In our study, we detected the expression of SMYD3 in CRC samples in TNM stage I-III with immunohistochemistry. The correlation between the expression of SMYD3 and the clinicopathological factors was analyzed with Chi-square test. The survival curve was displayed by Kaplan-Meier test and the statistical difference of subgroups was analyzed with log-rank test. Independent prognostic factors were identified by the Cox proportional hazards regression model. RESULTS The percentage of high SMYD3 expression and low expression accounts for 47.98% and 52.02% respectively. High expression of SMYD3 was significantly associated with advance T stage (P=0.006) and lower survival rates (P=0.010), and it could be identified as an independent prognostic factor indicating unfavorable prognosis of patients with CRC (P=0.032, HR=1.98, 95% CI=1.06-3.70). CONCLUSIONS SMYD3 high-expression is a high risk for poorer prognosis of CRC in TNM stage I-III. Our findings suggested that detecting SMYD3 may help stratify patients by risk more preciously and help make the individual treatment strategy.
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Affiliation(s)
- Naiqing Liu
- Department of General Surgery, Linyi Central HospitalLinyi, Shandong, China
| | - Shuxiang Sun
- Department of Infectious Disease, Linyi Central HospitalLinyi, Shandong, China
| | - Xiaoqing Yang
- Department of Pathology, Qianfoshan HospitalJinan, Shandong, China
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16
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Rajajeyabalachandran G, Kumar S, Murugesan T, Ekambaram S, Padmavathy R, Jegatheesan SK, Mullangi R, Rajagopal S. Therapeutical potential of deregulated lysine methyltransferase SMYD3 as a safe target for novel anticancer agents. Expert Opin Ther Targets 2016; 21:145-157. [PMID: 28019723 DOI: 10.1080/14728222.2017.1272580] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
INTRODUCTION SET and MYND domain containing-3 (SMYD3) is a member of the lysine methyltransferase family of proteins, and plays an important role in the methylation of various histone and non-histone targets. Proper functioning of SMYD3 is very important for the target molecules to determine their different roles in chromatin remodeling, signal transduction and cell cycle control. Due to the abnormal expression of SMYD3 in tumors, it is projected as a prognostic marker in various solid cancers. Areas covered: Here we elaborate on the general information, structure and the pathological role of SMYD3 protein. We summarize the role of SMYD3-mediated protein interactions in oncology pathways, mutational effects and regulation of SMYD3 in specific types of cancer. The efficacy and mechanisms of action of currently available SMYD3 small molecule inhibitors are also addressed. Expert opinion: The findings analyzed herein demonstrate that aberrant levels of SMYD3 protein exert tumorigenic effects by altering the epigenetic regulation of target genes. The partial involvement of SMYD3 in some distinct pathways provides a vital opportunity in targeting cancer effectively with fewer side effects. Further, identification and co-targeting of synergistic oncogenic pathways is suggested, which could provide much more beneficial effects for the treatment of solid cancers.
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Affiliation(s)
| | - Swetha Kumar
- a Bioinformatics, Jubilant Biosys Ltd ., Bangalore , India
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17
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Han H, Liang X, Ekberg M, Kritikou JS, Brunnström Å, Pelcman B, Matl M, Miao X, Andersson M, Yuan X, Schain F, Parvin S, Melin E, Sjöberg J, Xu D, Westerberg LS, Björkholm M, Claesson HE. Human 15-lipoxygenase-1 is a regulator of dendritic-cell spreading and podosome formation. FASEB J 2016; 31:491-504. [PMID: 27825104 DOI: 10.1096/fj.201600679rr] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 10/04/2016] [Indexed: 01/20/2023]
Abstract
Dendritic cells (DCs) involved in proinflammatory immune responses derive mainly from peripheral monocytes, and the cells subsequently mature and migrate into the inflammatory micromilieu. Here we report that suppressing of 15-lipoxygenase-1 led to a substantial reduction in DC spreading and podosome formation in vitro. The surface expression of CD83 was significantly lower in both sh-15-lipoxygenase-1 (15-LOX-1)-transduced cells and DCs cultivated in the presence of a novel specific 15-LOX-1 inhibitor. The T-cell response against tetanus-pulsed DCs was only affected to a minor extent on inhibition of 15-LOX-1. In contrast, endocytosis and migration ability of DCs were significantly suppressed on 15-LOX-1 inhibition. The expression of 15-LOX-1 in DCs was also demonstrated in affected human skin in atopic and contact dermatitis, showing that the enzyme is indeed expressed in inflammatory diseases in vivo. This study demonstrated that inhibiting 15-LOX-1 led to an impaired podosome formation in DCs, and consequently suppressed antigen uptake and migration capacity. These results indicated that 15-LOX-1 is a potential target for inhibiting the trafficking of DCs to lymphoid organs and inflamed tissues and decreasing the inflammatory response attenuating symptoms of certain immunologic and inflammatory disorders such as dermatitis.-Han, H., Liang, X., Ekberg, M., Kritikou, J. S., Brunnström, Å., Pelcman, B., Matl, M., Miao, X., Andersson, M., Yuan, X., Schain, F., Parvin, S., Melin, E., Sjöberg, J., Xu, D., Westerberg, L. S., Björkholm, M., Claesson, H.-E. Human 15-lipoxygenase-1 is a regulator of dendritic-cell spreading and podosome formation.
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Affiliation(s)
- Hongya Han
- Department of Medicine, Center for Hematology and Regenerative Medicine, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden; .,Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xiuming Liang
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Monica Ekberg
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Joanna S Kritikou
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Åsa Brunnström
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Benjamin Pelcman
- Department of Medicinal Chemistry, Organic Pharmaceutical Chemistry, Uppsala University, Uppsala, Sweden
| | - Maria Matl
- Clinical Immunology and Allergy Unit, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xinyan Miao
- Clinical Pharmacology Group, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden; and
| | - Margareta Andersson
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Xiaotian Yuan
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Frida Schain
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Selina Parvin
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Eva Melin
- Department of Clinical Sciences, Karolinska Institutet, Danderyd Hospital, Stockholm, Sweden
| | - Jan Sjöberg
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Dawei Xu
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Lisa S Westerberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden
| | - Magnus Björkholm
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
| | - Hans-Erik Claesson
- Division of Hematology, Department of Medicine, Karolinska Institutet, Karolinska University Hospital Solna, Stockholm, Sweden
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18
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Zhu Y, Zhu MX, Zhang XD, Xu XE, Wu ZY, Liao LD, Li LY, Xie YM, Wu JY, Zou HY, Xie JJ, Li EM, Xu LY. SMYD3 stimulates EZR and LOXL2 transcription to enhance proliferation, migration, and invasion in esophageal squamous cell carcinoma. Hum Pathol 2016; 52:153-63. [PMID: 26980013 DOI: 10.1016/j.humpath.2016.01.012] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2015] [Revised: 01/15/2016] [Accepted: 01/21/2016] [Indexed: 02/05/2023]
Abstract
Epigenetic alterations, including DNA methylation and histone modifications, are involved in the regulation of cancer initiation and progression. SET and MYND domain-containing protein 3 (SMYD3), a methyltransferase, plays an important role in transcriptional regulation during human cancer progression. However, SMYD3 expression and its function in esophageal squamous cell carcinoma (ESCC) remain unknown. In this study, SMYD3 expression was studied by immunohistochemistry in a tumor tissue microarray from 131 cases of ESCC patients. Statistical analysis showed that overall survival of patients with high SMYD3 expressing in primary tumors was significantly lower than that of patients with low SMYD3-expressing tumors (P = .008, log-rank test). Increased expression of SMYD3 was found to be associated with lymph node metastasis in ESCC (P = .036) and was an independent prognostic factor for poor overall survival (P = .025). RNAi-mediated knockdown of SMYD3 suppressed ESCC cell proliferation, migration, and invasion in vitro and inhibited local tumor invasion in vivo. SMYD3 regulated transcription of EZR and LOXL2 by directly binding to the sequences of the promoter regions of these target genes, as demonstrated by a chromatin immunoprecipitation assay. Immunohistochemical staining of ESCC tissues also confirmed that protein levels of EZR and LOXL2 positively correlated with SMYD3 expression, and the Spearman correlation coefficients (rs) were 0.78 (n = 81; P < .01) and 0.637 (n = 103; P < .01), respectively. These results indicate that SMYD3 enhances tumorigenicity in ESCC through enhancing transcription of genes involved in proliferation, migration, and invasion.
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MESH Headings
- Amino Acid Oxidoreductases/genetics
- Amino Acid Oxidoreductases/metabolism
- Animals
- Binding Sites
- Carcinoma, Squamous Cell/enzymology
- Carcinoma, Squamous Cell/genetics
- Carcinoma, Squamous Cell/mortality
- Carcinoma, Squamous Cell/secondary
- Cell Line, Tumor
- Cell Movement
- Cell Proliferation
- Cytoskeletal Proteins/genetics
- Cytoskeletal Proteins/metabolism
- Esophageal Neoplasms/enzymology
- Esophageal Neoplasms/genetics
- Esophageal Neoplasms/mortality
- Esophageal Neoplasms/pathology
- Esophageal Squamous Cell Carcinoma
- Female
- Gene Expression Regulation, Neoplastic
- Histone-Lysine N-Methyltransferase/genetics
- Histone-Lysine N-Methyltransferase/metabolism
- Humans
- Kaplan-Meier Estimate
- Lymphatic Metastasis
- Male
- Mice, Inbred BALB C
- Mice, Nude
- Neoplasm Invasiveness
- Promoter Regions, Genetic
- Proportional Hazards Models
- RNA Interference
- Retrospective Studies
- Signal Transduction
- Time Factors
- Transcription, Genetic
- Transcriptional Activation
- Transfection
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Affiliation(s)
- Ying Zhu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Meng-Xiao Zhu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Xiao-Dan Zhang
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Xiu-E Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Zhi-Yong Wu
- Departments of Oncology Surgery, Shantou Central Hospital, Affiliated Shantou Hospital of Sun Yat-Sen University, Shantou 515041, Guangdong, PR China
| | - Lian-Di Liao
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Li-Yan Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Yang-Min Xie
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Experimental Animal Center, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Jian-Yi Wu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Hai-Ying Zou
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - Jian-Jun Xie
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China
| | - En-Min Li
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Department of Biochemistry and Molecular Biology, Shantou University Medical College, Shantou 515041, Guangdong, PR China.
| | - Li-Yan Xu
- The Key Laboratory of Molecular Biology for High Cancer Incidence Coastal Chaoshan Area, Shantou University Medical College, Shantou 515041, Guangdong, PR China; Institute of Oncologic Pathology, Shantou University Medical College, Shantou 515041, Guangdong, PR China.
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19
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Vieira FQ, Costa-Pinheiro P, Almeida-Rios D, Graça I, Monteiro-Reis S, Simões-Sousa S, Carneiro I, Sousa EJ, Godinho MI, Baltazar F, Henrique R, Jerónimo C. SMYD3 contributes to a more aggressive phenotype of prostate cancer and targets Cyclin D2 through H4K20me3. Oncotarget 2016; 6:13644-57. [PMID: 25980436 PMCID: PMC4537039 DOI: 10.18632/oncotarget.3767] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2014] [Accepted: 04/13/2015] [Indexed: 01/10/2023] Open
Abstract
Prostate cancer (PCa) is one of the most incident cancers worldwide but clinical and pathological parameters have limited ability to discriminate between clinically significant and indolent PCa. Altered expression of histone methyltransferases and histone methylation patterns are involved in prostate carcinogenesis. SMYD3 transcript levels have prognostic value and discriminate among PCa with different clinical aggressiveness, so we decided to investigate its putative oncogenic role on PCa. We silenced SMYD3 and assess its impact through in vitro (cell viability, cell cycle, apoptosis, migration, invasion assays) and in vivo (tumor formation, angiogenesis). We evaluated SET domain's impact in PCa cells' phenotype. Histone marks deposition on SMYD3 putative target genes was assessed by ChIP analysis. Knockdown of SMYD3 attenuated malignant phenotype of LNCaP and PC3 cell lines. Deletions affecting the SET domain showed phenotypic impact similar to SMYD3 silencing, suggesting that tumorigenic effect is mediated through its histone methyltransferase activity. Moreover, CCND2 was identified as a putative target gene for SMYD3 transcriptional regulation, through trimethylation of H4K20. Our results support a proto-oncogenic role for SMYD3 in prostate carcinogenesis, mainly due to its methyltransferase enzymatic activity. Thus, SMYD3 overexpression is a potential biomarker for clinically aggressive disease and an attractive therapeutic target in PCa.
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Affiliation(s)
- Filipa Quintela Vieira
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,School of Allied Health Sciences (ESTSP), Polytechnic of Porto, Porto, Portugal
| | - Pedro Costa-Pinheiro
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal
| | - Diogo Almeida-Rios
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute, Porto, Portugal
| | - Inês Graça
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,School of Allied Health Sciences (ESTSP), Polytechnic of Porto, Porto, Portugal
| | - Sara Monteiro-Reis
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute, Porto, Portugal
| | - Susana Simões-Sousa
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Isa Carneiro
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute, Porto, Portugal
| | - Elsa Joana Sousa
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal
| | - Maria Inês Godinho
- Departments of Immunology, Portuguese Oncology Institute, Porto, Portugal
| | - Fátima Baltazar
- Life and Health Sciences Research Institute (ICVS), School of Health Sciences, University of Minho, Braga, Portugal.,ICVS/3B's, PT Government Associate Laboratory, Braga/Guimarães, Portugal
| | - Rui Henrique
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,Departments of Pathology, Portuguese Oncology Institute, Porto, Portugal.,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - Carmen Jerónimo
- Cancer Biology and Epigenetics Group, Research Center, Portuguese Oncology Institute, Porto, Portugal.,Department of Pathology and Molecular Immunology, Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
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Mashima R, Okuyama T. The role of lipoxygenases in pathophysiology; new insights and future perspectives. Redox Biol 2015; 6:297-310. [PMID: 26298204 PMCID: PMC4556770 DOI: 10.1016/j.redox.2015.08.006] [Citation(s) in RCA: 259] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 08/04/2015] [Accepted: 08/04/2015] [Indexed: 12/21/2022] Open
Abstract
Lipoxygenases (LOXs) are dioxygenases that catalyze the formation of corresponding hydroperoxides from polyunsaturated fatty acids such as linoleic acid and arachidonic acid. LOX enzymes are expressed in immune, epithelial, and tumor cells that display a variety of physiological functions, including inflammation, skin disorder, and tumorigenesis. In the humans and mice, six LOX isoforms have been known. 15-LOX, a prototypical enzyme originally found in reticulocytes shares the similarity of amino acid sequence as well as the biochemical property to plant LOX enzymes. 15-LOX-2, which is expressed in epithelial cells and leukocytes, has different substrate specificity in the humans and mice, therefore, the role of them in mammals has not been established. 12-LOX is an isoform expressed in epithelial cells and myeloid cells including platelets. Many mutations in this isoform are found in epithelial cancers, suggesting a potential link between 12-LOX and tumorigenesis. 12R-LOX can be found in the epithelial cells of the skin. Defects in this gene result in ichthyosis, a cutaneous disorder characterized by pathophysiologically dried skin due to abnormal loss of water from its epithelial cell layer. Similarly, eLOX-3, which is also expressed in the skin epithelial cells acting downstream 12R-LOX, is another causative factor for ichthyosis. 5-LOX is a distinct isoform playing an important role in asthma and inflammation. This isoform causes the constriction of bronchioles in response to cysteinyl leukotrienes such as LTC4, thus leading to asthma. It also induces neutrophilic inflammation by its recruitment in response to LTB4. Importantly, 5-LOX activity is strictly regulated by 5-LOX activating protein (FLAP) though the distribution of 5-LOX in the nucleus. Currently, pharmacological drugs targeting FLAP are actively developing. This review summarized these functions of LOX enzymes under pathophysiological conditions in mammals.
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Affiliation(s)
- Ryuichi Mashima
- Department of Clinical Laboratory Medicine, National Center for Child Health and Development, 2-10-1 Ohkura, Setagaya-ku, Tokyo 157-8535, Japan.
| | - Torayuki Okuyama
- Department of Clinical Laboratory Medicine, National Center for Child Health and Development, 2-10-1 Ohkura, Setagaya-ku, Tokyo 157-8535, Japan
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21
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Mao F, Wang M, Wang J, Xu WR. The role of 15-LOX-1 in colitis and colitis-associated colorectal cancer. Inflamm Res 2015; 64:661-9. [DOI: 10.1007/s00011-015-0852-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/04/2015] [Accepted: 07/06/2015] [Indexed: 02/08/2023] Open
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22
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Spellmon N, Holcomb J, Trescott L, Sirinupong N, Yang Z. Structure and function of SET and MYND domain-containing proteins. Int J Mol Sci 2015; 16:1406-28. [PMID: 25580534 PMCID: PMC4307310 DOI: 10.3390/ijms16011406] [Citation(s) in RCA: 103] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2014] [Accepted: 01/05/2015] [Indexed: 12/26/2022] Open
Abstract
SET (Suppressor of variegation, Enhancer of Zeste, Trithorax) and MYND (Myeloid-Nervy-DEAF1) domain-containing proteins (SMYD) have been found to methylate a variety of histone and non-histone targets which contribute to their various roles in cell regulation including chromatin remodeling, transcription, signal transduction, and cell cycle control. During early development, SMYD proteins are believed to act as an epigenetic regulator for myogenesis and cardiomyocyte differentiation as they are abundantly expressed in cardiac and skeletal muscle. SMYD proteins are also of therapeutic interest due to the growing list of carcinomas and cardiovascular diseases linked to SMYD overexpression or dysfunction making them a putative target for drug intervention. This review will examine the biological relevance and gather all of the current structural data of SMYD proteins.
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Affiliation(s)
- Nicholas Spellmon
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 East Canfield Street, Detroit, MI 48201, USA.
| | - Joshua Holcomb
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 East Canfield Street, Detroit, MI 48201, USA.
| | - Laura Trescott
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 East Canfield Street, Detroit, MI 48201, USA.
| | - Nualpun Sirinupong
- Nutraceuticals and Functional Food Research and Development Center, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand.
| | - Zhe Yang
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 East Canfield Street, Detroit, MI 48201, USA.
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23
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Dong S, Zhang P. [Advances of histone methyltransferase SMYD3 in tumors]. ZHONGGUO FEI AI ZA ZHI = CHINESE JOURNAL OF LUNG CANCER 2014; 17:689-94. [PMID: 25248712 PMCID: PMC6000504 DOI: 10.3779/j.issn.1009-3419.2014.09.09] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Shangwen Dong
- Department of Cardiothoracic Surgery, Tianjin General Hospital, Tianjin 300052, China
| | - Peng Zhang
- Department of Cardiothoracic Surgery, Tianjin General Hospital, Tianjin 300052, China;Tianjin Lung Cancer Research Institute, Tianjin 300052, China
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Rodríguez-Sanz H, Moreno-Romero J, Solís MT, Köhler C, Risueño MC, Testillano PS. Changes in histone methylation and acetylation during microspore reprogramming to embryogenesis occur concomitantly with Bn HKMT and Bn HAT expression and are associated with cell totipotency, proliferation, and differentiation in Brassica napus. Cytogenet Genome Res 2014; 143:209-18. [PMID: 25060767 DOI: 10.1159/000365261] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In response to stress treatments, microspores can be reprogrammed to become totipotent cells that follow an embryogenic pathway producing haploid and double-haploid embryos which are important biotechnological tools in plant breeding. Recent studies have revealed the involvement of DNA methylation in regulating this process, but no information is available on the role of histone modifications in microspore embryogenesis. Histone modifications are major epigenetic marks controlling gene expression during plant development and in response to environmental changes. Lysine methylation of histones, accomplished by histone lysine methyltransferases (HKMTs), can occur on different lysine residues, with histone H3K9 methylation being mainly associated with transcriptionally silenced regions. In contrast, histone H3 and H4 acetylation is carried out by histone acetyltransferases (HATs) and is associated with actively transcribed genes. In this work, we analyzed 3 different histone epigenetic marks: dimethylation of H3K9 (H3K9me2) and acetylation of H3 and H4 (H3Ac and H4Ac) during microspore embryogenesis in Brassica napus by Western blot and immunofluorescence assays. The expression patterns of histone methyltransferase BnHKMT and histone acetyltransferase BnHAT genes have also been analyzed by qPCR. Our results revealed different spatial and temporal distribution patterns for methylated and acetylated histone variants during microspore embryogenesis and their similarity with the expression profiles of BnHKMT and BnHAT, respectively. The data presented suggest the participation of H3K9me2 and HKMT in embryo cell differentiation and heterochromatinization events, whereas H3Ac, H4Ac, and HAT would be involved in transcriptional activation, totipotency, and proliferation events during cell reprogramming and embryo development.
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Affiliation(s)
- Héctor Rodríguez-Sanz
- Pollen Biotechnology of Crop Plants Group, Centro de Investigaciones Biológicas (CIB) CSIC, Madrid, Spain
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Aguilar-Valles A, Vaissière T, Griggs EM, Mikaelsson MA, Takács IF, Young EJ, Rumbaugh G, Miller CA. Methamphetamine-associated memory is regulated by a writer and an eraser of permissive histone methylation. Biol Psychiatry 2014; 76:57-65. [PMID: 24183790 PMCID: PMC4024089 DOI: 10.1016/j.biopsych.2013.09.014] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 08/29/2013] [Accepted: 09/18/2013] [Indexed: 12/12/2022]
Abstract
BACKGROUND Memories associated with drugs of abuse, such as methamphetamine (METH), increase relapse vulnerability to substance use disorder by triggering craving. The nucleus accumbens (NAc) is essential to these drug-associated memories, but underlying mechanisms are poorly understood. Posttranslational chromatin modifications, such as histone methylation, modulate gene transcription; thus, we investigated the role of the associated epigenetic modifiers in METH-associated memory. METHODS Conditioned place preference was used to assess the epigenetic landscape in the NAc supporting METH-associated memory (n = 79). The impact of histone methylation (H3K4me2/3) on the formation and expression of METH-associated memory was determined by focal, intra-NAc knockdown (KD) of a writer, the methyltransferase mixed-lineage leukemia 1 (Mll1) (n = 26), and an eraser, the histone lysine (K)-specific demethylase 5C (Kdm5c) (n = 38), of H3K4me2/3. RESULTS A survey of chromatin modifications in the NAc of animals forming a METH-associated memory revealed the global induction of several modifications associated with active transcription. This correlated with a pattern of gene activation, as revealed by microarray analysis, including upregulation of oxytocin receptor (Oxtr) and FBJ osteosarcoma oncogene (Fos), the promoters of which also had increased H3K4me3. KD of Mll1 reduced H3K4me3, Fos and Oxtr levels and disrupted METH-associated memory. KD of Kdm5c resulted in hypermethylation of H3K4 and prevented the expression of METH-associated memory. CONCLUSIONS The development and expression of METH-associated memory are supported by regulation of H3K4me2/3 levels by MLL1 and KDM5C, respectively, in the NAc. These data indicate that permissive histone methylation, and the associated epigenetic writers and erasers, represent potential targets for the treatment of substance abuse relapse, a psychiatric condition perpetuated by unwanted associative memories.
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Affiliation(s)
- Argel Aguilar-Valles
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Thomas Vaissière
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Erica M. Griggs
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Mikael A. Mikaelsson
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Irma F. Takács
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Erica J. Young
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida
| | - Gavin Rumbaugh
- Department of Neuroscience, The Scripps Research Institute, Florida
| | - Courtney A. Miller
- Department of Metabolism and Aging, The Scripps Research Institute, Florida,Department of Neuroscience, The Scripps Research Institute, Florida, Corresponding author: Dr. Courtney A. Miller 130 Scripps Way Jupiter, Florida 33458 Telephone: 561-228-2958 Fax: 561-228-3059
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Interleukin-4-mediated 15-lipoxygenase-1 trans-activation requires UTX recruitment and H3K27me3 demethylation at the promoter in A549 cells. PLoS One 2014; 9:e85085. [PMID: 24465480 PMCID: PMC3896354 DOI: 10.1371/journal.pone.0085085] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Accepted: 11/22/2013] [Indexed: 11/19/2022] Open
Abstract
Arachidonate 15-lipoxygenase-1 (ALOX15) oxygenates polyunsaturated fatty acids and bio-membranes, generating multiple lipid signalling mediators involved in inflammation. Several lines of evidence indicate that ALOX15 activation in the respiratory tract contributes to asthma progression. Recent experimental data reveals that histone modification at the promoter plays a critical role in ALOX15 gene transcription. In the present study, we examined the status of histone H3 trimethyl-lysine 27 (H3K27me3) at the ALOX15 promoter by chromatin immunoprecipitation assay in human lung epithelial carcinoma A549 cells incubated with or without interleukin (IL)-4. We identified demethylation of H3K27me3 at the ALOX15 promoter after IL-4 treatment. Furthermore, we found that the H3K27me2/3-specific demethylase, ubiquitously transcribed tetratricopeptide repeat, X chromosome (UTX), mediates the H3K27me3 demethylation during ALOX15 transcriptional activation. When UTX expression was knocked down using siRNA, IL-4-mediated H3K27me3 demethylation and ALOX15 induction were significantly attenuated. The critical role of UTX in ALOX15 expression was confirmed in human monocytes and the Hodgkin lymphoma (HL) cell line L1236, but was in these cells not related to H3K27me3-demethylase activity. These results demonstrate that UTX is implicated in IL-4 mediated transcriptional activation of the ALOX15 gene.
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Chai SY, Smith R, Fitter JT, Mitchell C, Pan X, Ilicic M, Maiti K, Zakar T, Madsen G. Increased progesterone receptor A expression in labouring human myometrium is associated with decreased promoter occupancy by the histone demethylase JARID1A. Mol Hum Reprod 2014; 20:442-53. [PMID: 24442343 DOI: 10.1093/molehr/gau005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Progesterone regulates female reproductive function predominantly through two nuclear progesterone receptors (PRs), PR-A and PR-B. During human parturition myometrial PR expression is altered to favour PR-A, which activates pro-labour genes. We have previously identified histone H3 lysine 4 trimethylation (H3K4me3) as an activator of myometrial PR-A expression at labour. To further elucidate the mechanisms regulating PR isoform expression in the human uterus at labour, we have (i) determined the methylation profile of the cytosine-guanine dinucleotides (CpG) island in the promoter region of the PR gene and (ii) identified the histone-modifying enzymes that target the H3K4me3 mark at the PR promoters in term and preterm human myometrial tissues obtained before and after labour onset. Bisulphite sequencing showed that despite overall low levels of PR CpG island methylation, there was a significant decrease in methylated CpGs with labour in both preterm (P < 0.05) and term (P < 0.01) groups downstream of the PR-B transcription start site. This methylation change was not associated with altered PR-B expression, but may contribute to the increase in PR-A expression with labour. Chromatin immunoprecipitation revealed that the histone methyltransferase, SET and MYND domain-containing protein 3 (SMYD3), bound to the PR gene at significantly higher levels at the PR-A promoter compared with the PR-B promoter (P < 0.010), with no labour-associated changes observed. The H3K4 demethylase, Jumonji AT-rich interactive domain 1A (JARID1A), also bound to the PR-A, but not to the PR-B promoter prior to term labour, and decreased significantly at the onset of labour (P = 0.014), providing a mechanism for the previously reported increase in H3K4me3 level and PR-A expression with labour. Our studies suggest that epigenetic changes mediated by JARID1A, SMYD3 and DNA methylation may be responsible, at least in part, for the functional progesterone withdrawal that precipitates human labour.
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Affiliation(s)
- S Y Chai
- Mothers and Babies Research Centre, Hunter Medical Research Institute, University of Newcastle, Newcastle, Australia
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Kittan NA, Allen RM, Dhaliwal A, Cavassani KA, Schaller M, Gallagher KA, Carson WF, Mukherjee S, Grembecka J, Cierpicki T, Jarai G, Westwick J, Kunkel SL, Hogaboam CM. Cytokine induced phenotypic and epigenetic signatures are key to establishing specific macrophage phenotypes. PLoS One 2013; 8:e78045. [PMID: 24205083 PMCID: PMC3804553 DOI: 10.1371/journal.pone.0078045] [Citation(s) in RCA: 132] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Accepted: 09/08/2013] [Indexed: 11/18/2022] Open
Abstract
Macrophages (MΦ) play an essential role in innate immune responses and can either display a pro-inflammatory, classically activated phenotype (M1) or undergo an alternative activation program (M2) promoting immune regulation. M-CSF is used to differentiate monocytes into MΦ and IFN-γ or IL-4+IL-13 to further polarize these cells towards M1 or M2, respectively. Recently, differentiation using only GM-CSF or M-CSF has been described to induce a M1- or M2-like phenotype, respectively. In this study, we combined both approaches by differentiating human MΦ in GM-CSF or M-CSF followed by polarization with either IFN-γ or IL-4+IL-13. We describe the phenotypic differences between CD14(hi) CD163(hi) CD206(int) FOLR2-expressing M-CSF MΦ and CD14(lo) CD163(lo) CD206(hi) GM-CSF MΦ but show that both macrophage populations reacted similarly to further polarization with IFN-γ or IL-4+IL-13 with up- and down-regulation of common M1 and M2 marker genes. We also show that high expression of the mannose receptor (CD206), a marker of alternative activation, is a distinct feature of GM-CSF MΦ. Changes of the chromatin structure carried out by chromatin modification enzymes (CME) have been shown to regulate myeloid differentiation. We analyzed the expression patterns of CME during MΦ polarization and show that M1 up-regulate the histone methyltransferase MLL and demethylase KDM6B, while resting and M2 MΦ were characterized by DNA methyltransferases and histone deacetylases. We demonstrate that MLL regulates CXCL10 expression and that this effect could be abrogated using a MLL-Menin inhibitor. Taken together we describe the distinct phenotypic differences of GM-CSF or M-CSF MΦ and demonstrate that MΦ polarization is regulated by specific epigenetic mechanisms. In addition, we describe a novel role for MLL as marker for classical activation. Our findings provide new insights into MΦ polarization that could be helpful to distinguish MΦ activation states.
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Affiliation(s)
- Nicolai A. Kittan
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Ronald M. Allen
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Abhay Dhaliwal
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Karen A. Cavassani
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Matthew Schaller
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Katherine A. Gallagher
- Division of Vascular Surgery, University of Michigan Hospital, Ann Arbor, Michigan, United States of America
| | - William F. Carson
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Sumanta Mukherjee
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Jolanta Grembecka
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Tomasz Cierpicki
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Gabor Jarai
- Novartis Institutes of Biomedical Research, Respiratory Disease Area, Horsham, West Sussex, United Kingdom
| | - John Westwick
- Novartis Institutes of Biomedical Research, Respiratory Disease Area, Horsham, West Sussex, United Kingdom
| | - Steven L. Kunkel
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
| | - Cory M. Hogaboam
- Department of Pathology, University of Michigan Medical School, Ann Arbor, Michigan, United States of America
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Naviaux RK. Metabolic features of the cell danger response. Mitochondrion 2013; 16:7-17. [PMID: 23981537 DOI: 10.1016/j.mito.2013.08.006] [Citation(s) in RCA: 136] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2013] [Revised: 08/12/2013] [Accepted: 08/16/2013] [Indexed: 12/12/2022]
Abstract
The cell danger response (CDR) is the evolutionarily conserved metabolic response that protects cells and hosts from harm. It is triggered by encounters with chemical, physical, or biological threats that exceed the cellular capacity for homeostasis. The resulting metabolic mismatch between available resources and functional capacity produces a cascade of changes in cellular electron flow, oxygen consumption, redox, membrane fluidity, lipid dynamics, bioenergetics, carbon and sulfur resource allocation, protein folding and aggregation, vitamin availability, metal homeostasis, indole, pterin, 1-carbon and polyamine metabolism, and polymer formation. The first wave of danger signals consists of the release of metabolic intermediates like ATP and ADP, Krebs cycle intermediates, oxygen, and reactive oxygen species (ROS), and is sustained by purinergic signaling. After the danger has been eliminated or neutralized, a choreographed sequence of anti-inflammatory and regenerative pathways is activated to reverse the CDR and to heal. When the CDR persists abnormally, whole body metabolism and the gut microbiome are disturbed, the collective performance of multiple organ systems is impaired, behavior is changed, and chronic disease results. Metabolic memory of past stress encounters is stored in the form of altered mitochondrial and cellular macromolecule content, resulting in an increase in functional reserve capacity through a process known as mitocellular hormesis. The systemic form of the CDR, and its magnified form, the purinergic life-threat response (PLTR), are under direct control by ancient pathways in the brain that are ultimately coordinated by centers in the brainstem. Chemosensory integration of whole body metabolism occurs in the brainstem and is a prerequisite for normal brain, motor, vestibular, sensory, social, and speech development. An understanding of the CDR permits us to reframe old concepts of pathogenesis for a broad array of chronic, developmental, autoimmune, and degenerative disorders. These disorders include autism spectrum disorders (ASD), attention deficit hyperactivity disorder (ADHD), asthma, atopy, gluten and many other food and chemical sensitivity syndromes, emphysema, Tourette's syndrome, bipolar disorder, schizophrenia, post-traumatic stress disorder (PTSD), chronic traumatic encephalopathy (CTE), traumatic brain injury (TBI), epilepsy, suicidal ideation, organ transplant biology, diabetes, kidney, liver, and heart disease, cancer, Alzheimer and Parkinson disease, and autoimmune disorders like lupus, rheumatoid arthritis, multiple sclerosis, and primary sclerosing cholangitis.
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Affiliation(s)
- Robert K Naviaux
- The Mitochondrial and Metabolic Disease Center, Departments of Medicine, Pediatrics, and Pathology, University of California, San Diego School of Medicine, 214 Dickinson St., Bldg CTF, Rm C102, San Diego, CA 92103-8467, USA; Veterans Affairs Center for Excellence in Stress and Mental Health (CESAMH), La Jolla, CA, USA.
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