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Chen YZ, Zhu XM, Lv P, Hou XK, Pan Y, Li A, Du Z, Xuan JF, Guo X, Xing JX, Liu K, Yao J. Association of histone modification with the development of schizophrenia. Biomed Pharmacother 2024; 175:116747. [PMID: 38744217 DOI: 10.1016/j.biopha.2024.116747] [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: 02/29/2024] [Revised: 05/06/2024] [Accepted: 05/10/2024] [Indexed: 05/16/2024] Open
Abstract
Schizophrenia, influenced by genetic and environmental factors, may involve epigenetic alterations, notably histone modifications, in its pathogenesis. This review summarizes various histone modifications including acetylation, methylation, phosphorylation, ubiquitination, serotonylation, lactylation, palmitoylation, and dopaminylation, and their implications in schizophrenia. Current research predominantly focuses on histone acetylation and methylation, though other modifications also play significant roles. These modifications are crucial in regulating transcription through chromatin remodeling, which is vital for understanding schizophrenia's development. For instance, histone acetylation enhances transcriptional efficiency by loosening chromatin, while increased histone methyltransferase activity on H3K9 and altered histone phosphorylation, which reduces DNA affinity and destabilizes chromatin structure, are significant markers of schizophrenia.
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Affiliation(s)
- Yun-Zhou Chen
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xiu-Mei Zhu
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Peng Lv
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xi-Kai Hou
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Ying Pan
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Ang Li
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Zhe Du
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Jin-Feng Xuan
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China
| | - Xiaochong Guo
- Laboratory Animal Center, China Medical University, PR China
| | - Jia-Xin Xing
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China.
| | - Kun Liu
- Key Laboratory of Health Ministry in Congenital Malformation, Shengjing Hospital of China Medical University, PR China.
| | - Jun Yao
- School of Forensic Medicine, China Medical University, PR China; Key Laboratory of Forensic Bio-evidence Sciences, Liaoning Province, PR China; China Medical University Center of Forensic Investigation, PR China.
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2
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Sisto M, Lisi S. Epigenetic Regulation of EMP/EMT-Dependent Fibrosis. Int J Mol Sci 2024; 25:2775. [PMID: 38474021 DOI: 10.3390/ijms25052775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 02/23/2024] [Accepted: 02/24/2024] [Indexed: 03/14/2024] Open
Abstract
Fibrosis represents a process characterized by excessive deposition of extracellular matrix (ECM) proteins. It often represents the evolution of pathological conditions, causes organ failure, and can, in extreme cases, compromise the functionality of organs to the point of causing death. In recent years, considerable efforts have been made to understand the molecular mechanisms underlying fibrotic evolution and to identify possible therapeutic strategies. Great interest has been aroused by the discovery of a molecular association between epithelial to mesenchymal plasticity (EMP), in particular epithelial to mesenchymal transition (EMT), and fibrogenesis, which has led to the identification of complex molecular mechanisms closely interconnected with each other, which could explain EMT-dependent fibrosis. However, the result remains unsatisfactory from a therapeutic point of view. In recent years, advances in epigenetics, based on chromatin remodeling through various histone modifications or through the intervention of non-coding RNAs (ncRNAs), have provided more information on the fibrotic process, and this could represent a promising path forward for the identification of innovative therapeutic strategies for organ fibrosis. In this review, we summarize current research on epigenetic mechanisms involved in organ fibrosis, with a focus on epigenetic regulation of EMP/EMT-dependent fibrosis.
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Affiliation(s)
- Margherita Sisto
- Department of Translational Biomedicine and Neuroscience (DiBraiN), Section of Human Anatomy and Histology, University of Bari, Piazza Giulio Cesare 1, I-70124 Bari, Italy
| | - Sabrina Lisi
- Department of Translational Biomedicine and Neuroscience (DiBraiN), Section of Human Anatomy and Histology, University of Bari, Piazza Giulio Cesare 1, I-70124 Bari, Italy
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3
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Xu Y, He Z, Du J, Chen Z, Creemers JWM, Wang B, Li F, Wang Y. Epigenetic modulations of immune cells: from normal development to tumor progression. Int J Biol Sci 2023; 19:5120-5144. [PMID: 37928272 PMCID: PMC10620821 DOI: 10.7150/ijbs.88327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/21/2023] [Indexed: 11/07/2023] Open
Abstract
The dysfunction of immune cell development often impairs immunological homeostasis, thus causing various human diseases. Accumulating evidence shows that the development of different immune cells from hematopoietic stem cells are highly fine-tuned by different epigenetic mechanisms including DNA methylation, histone modifications, chromatin remodeling and RNA-related regulations. Understanding how epigenetic regulators modulate normal development of immune cells contributes to the identification of new strategies for various diseases. Here, we review recent advances suggesting that epigenetic modulations can orchestrate immune cell development and functions through their impact on critical gene expression. We also discuss the aberrations of epigenetic modulations in immune cells that influence tumor progression, and the fact that underlying mechanisms affect how epigenetic drugs interfere with tumor progression in the clinic.
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Affiliation(s)
- Yuanchun Xu
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, China
- Department of nursing, Daping Hospital, Army Medical University, Chongqing, China
| | - Zongsheng He
- Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, China
| | - Jing Du
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Ziqiang Chen
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | | | - Bin Wang
- Department of Gastroenterology, Daping Hospital, Army Medical University, Chongqing, China
| | - Fan Li
- Department of General Surgery, Daping Hospital, Army Medical University, Chongqing, China
| | - Yaling Wang
- Department of nursing, Daping Hospital, Army Medical University, Chongqing, China
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4
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Liu R, Wu J, Guo H, Yao W, Li S, Lu Y, Jia Y, Liang X, Tang J, Zhang H. Post-translational modifications of histones: Mechanisms, biological functions, and therapeutic targets. MedComm (Beijing) 2023; 4:e292. [PMID: 37220590 PMCID: PMC10200003 DOI: 10.1002/mco2.292] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Revised: 05/05/2023] [Accepted: 05/09/2023] [Indexed: 05/25/2023] Open
Abstract
Histones are DNA-binding basic proteins found in chromosomes. After the histone translation, its amino tail undergoes various modifications, such as methylation, acetylation, phosphorylation, ubiquitination, malonylation, propionylation, butyrylation, crotonylation, and lactylation, which together constitute the "histone code." The relationship between their combination and biological function can be used as an important epigenetic marker. Methylation and demethylation of the same histone residue, acetylation and deacetylation, phosphorylation and dephosphorylation, and even methylation and acetylation between different histone residues cooperate or antagonize with each other, forming a complex network. Histone-modifying enzymes, which cause numerous histone codes, have become a hot topic in the research on cancer therapeutic targets. Therefore, a thorough understanding of the role of histone post-translational modifications (PTMs) in cell life activities is very important for preventing and treating human diseases. In this review, several most thoroughly studied and newly discovered histone PTMs are introduced. Furthermore, we focus on the histone-modifying enzymes with carcinogenic potential, their abnormal modification sites in various tumors, and multiple essential molecular regulation mechanism. Finally, we summarize the missing areas of the current research and point out the direction of future research. We hope to provide a comprehensive understanding and promote further research in this field.
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Affiliation(s)
- Ruiqi Liu
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
- Graduate DepartmentBengbu Medical College, BengbuAnhuiChina
| | - Jiajun Wu
- Graduate DepartmentBengbu Medical College, BengbuAnhuiChina
- Otolaryngology & Head and Neck CenterCancer CenterDepartment of Head and Neck SurgeryZhejiang Provincial People's HospitalAffiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Haiwei Guo
- Otolaryngology & Head and Neck CenterCancer CenterDepartment of Head and Neck SurgeryZhejiang Provincial People's HospitalAffiliated People's Hospital, Hangzhou Medical CollegeHangzhouZhejiangChina
| | - Weiping Yao
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
- Graduate DepartmentBengbu Medical College, BengbuAnhuiChina
| | - Shuang Li
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
- Graduate DepartmentJinzhou Medical UniversityJinzhouLiaoningChina
| | - Yanwei Lu
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
| | - Yongshi Jia
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
| | - Xiaodong Liang
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
- Graduate DepartmentBengbu Medical College, BengbuAnhuiChina
| | - Jianming Tang
- Department of Radiation OncologyThe First Hospital of Lanzhou UniversityLanzhou UniversityLanzhouGansuChina
| | - Haibo Zhang
- Cancer CenterDepartment of Radiation OncologyZhejiang Provincial People's HospitalAffiliated People's HospitalHangzhou Medical CollegeHangzhouZhejiangChina
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5
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Czaja AJ. Epigenetic Aspects and Prospects in Autoimmune Hepatitis. Front Immunol 2022; 13:921765. [PMID: 35844554 PMCID: PMC9281562 DOI: 10.3389/fimmu.2022.921765] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Accepted: 05/12/2022] [Indexed: 12/12/2022] Open
Abstract
The observed risk of autoimmune hepatitis exceeds its genetic risk, and epigenetic factors that alter gene expression without changing nucleotide sequence may help explain the disparity. Key objectives of this review are to describe the epigenetic modifications that affect gene expression, discuss how they can affect autoimmune hepatitis, and indicate prospects for improved management. Multiple hypo-methylated genes have been described in the CD4+ and CD19+ T lymphocytes of patients with autoimmune hepatitis, and the circulating micro-ribonucleic acids, miR-21 and miR-122, have correlated with laboratory and histological features of liver inflammation. Both epigenetic agents have also correlated inversely with the stage of liver fibrosis. The reduced hepatic concentration of miR-122 in cirrhosis suggests that its deficiency may de-repress the pro-fibrotic prolyl-4-hydroxylase subunit alpha-1 gene. Conversely, miR-155 is over-expressed in the liver tissue of patients with autoimmune hepatitis, and it may signify active immune-mediated liver injury. Different epigenetic findings have been described in diverse autoimmune and non-autoimmune liver diseases, and these changes may have disease-specificity. They may also be responses to environmental cues or heritable adaptations that distinguish the diseases. Advances in epigenetic editing and methods for blocking micro-ribonucleic acids have improved opportunities to prove causality and develop site-specific, therapeutic interventions. In conclusion, the role of epigenetics in affecting the risk, clinical phenotype, and outcome of autoimmune hepatitis is under-evaluated. Full definition of the epigenome of autoimmune hepatitis promises to enhance understanding of pathogenic mechanisms and satisfy the unmet clinical need to improve therapy for refractory disease.
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Affiliation(s)
- Albert J. Czaja
- *Correspondence: Albert J. Czaja, ; orcid.org/0000-0002-5024-3065
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6
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Chakraborty A, Ghosh S, Biswas B, Pramanik S, Nriagu J, Bhowmick S. Epigenetic modifications from arsenic exposure: A comprehensive review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 810:151218. [PMID: 34717984 DOI: 10.1016/j.scitotenv.2021.151218] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 06/13/2023]
Abstract
Arsenic is a notorious element with the potential to harm exposed individuals in ways that include cancerous and non-cancerous health complications. Millions of people across the globe (especially in South and Southeast Asian countries including China, Vietnam, India and Bangladesh) are currently being unknowingly exposed to precarious levels of arsenic. Among the diverse effects associated with such arsenic levels of exposure is the propensity to alter the epigenome. Although a large volume of literature exists on arsenic-induced genotoxicity, cytotoxicity, and inter-individual susceptibility due to active research on these subject areas from the last millennial, it is only recently that attention has turned on the ramifications and mechanisms of arsenic-induced epigenetic changes. The present review summarizes the possible mechanisms involved in arsenic induced epigenetic alterations. It focuses on the mechanisms underlying epigenome reprogramming from arsenic exposure that result in improper cell signaling and dysfunction of various epigenetic components. The mechanistic information articulated from the review is used to propose a number of novel therapeutic strategies with a potential for ameliorating the burden of worldwide arsenic poisoning.
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Affiliation(s)
- Arijit Chakraborty
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Soma Ghosh
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Bratisha Biswas
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Sreemanta Pramanik
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India
| | - Jerome Nriagu
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 109 Observatory Street, Ann Arbor, MI 48109-2029, USA
| | - Subhamoy Bhowmick
- Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (NEERI), Kolkata, West Bengal 700107, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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7
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Yang Q, Chen Y, Guo R, Dai Y, Tang L, Zhao Y, Wu X, Li M, Du F, Shen J, Yi T, Xiao Z, Wen Q. Interaction of ncRNA and Epigenetic Modifications in Gastric Cancer: Focus on Histone Modification. Front Oncol 2022; 11:822745. [PMID: 35155211 PMCID: PMC8826423 DOI: 10.3389/fonc.2021.822745] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 12/28/2021] [Indexed: 12/24/2022] Open
Abstract
Gastric cancer has developed as a very common gastrointestinal tumors, with recent effective advancements in the diagnosis and treatment of early gastric cancer. However, the prognosis for gastric cancer remains poor. As a result, there is in sore need of better understanding the mechanisms of gastric cancer development and progression to improve existing diagnostic and treatment options. In recent years, epigenetics has been recognized as an important contributor on tumor progression. Epigenetic changes in cancer include chromatin remodeling, DNA methylation and histone modifications. An increasing number of studies demonstrated that noncoding RNAs (ncRNAs) are associated with epigenetic changes in gastric cancer. Herein, we describe the molecular interactions of histone modifications and ncRNAs in epigenetics. We focus on ncRNA-mediated histone modifications of gene expression associated with tumorigenesis and progression in gastric cancer. This molecular mechanism will contribute to our deeper understanding of gastric carcinogenesis and progression, thus providing innovations in gastric cancer diagnosis and treatment strategies.
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Affiliation(s)
- Qingfan Yang
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China.,South Sichuan Institute of Translational Medicine, Luzhou, China
| | - Yu Chen
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Rui Guo
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China
| | - Yalan Dai
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China.,South Sichuan Institute of Translational Medicine, Luzhou, China
| | - Liyao Tang
- Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Yueshui Zhao
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Xu Wu
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Mingxing Li
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Fukuan Du
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Jing Shen
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Tao Yi
- School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Hong Kong SAR, China
| | - Zhangang Xiao
- South Sichuan Institute of Translational Medicine, Luzhou, China.,Laboratory of Molecular Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China.,Cell Therapy & Cell Drugs of Luzhou Key Laboratory, Luzhou, China
| | - Qinglian Wen
- Department of Oncology, The Affiliated Hospital of Southwest Medical University, Southwest Medical University, Luzhou, China.,South Sichuan Institute of Translational Medicine, Luzhou, China
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8
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Izem L, Bialkowska K, Pluskota E, Das M, Das R, Nieman MT, Plow EF. Plasminogen-induced foam cell formation by macrophages occurs through a histone 2B (H2B)-PAR1 pathway and requires integrity of clathrin-coated pits. J Thromb Haemost 2021; 19:941-953. [PMID: 33492784 DOI: 10.1111/jth.15253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 12/22/2020] [Accepted: 01/12/2021] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Plasminogen/plasmin is a serine protease system primarily responsible for degrading fibrin within blood clots. Plasminogen mediates its functions by interacting with plasminogen receptors on the cell surface. H2B, one such plasminogen receptor, is found on the surface of several cell types including macrophages. Both basic and clinical studies support the role of plasminogen in the process of foam cell formation (FCF), a hallmark of atherosclerosis. Growing evidence also implicates serine protease-activated receptors (PARs) in atherosclerosis. These receptors are also found on macrophages, and plasmin is capable of activating PAR1 and PAR4. The goal of this study was to determine the extent of H2B's contribution to plasminogen-mediated FCF by macrophages and if PARs are involved in this process. APPROACH AND RESULTS Treating macrophages with plasminogen increases their oxidized low-density lipoprotein uptake and plasminogen-mediated foam cell formation (Plg-FCF) significantly. The magnitude of Plg-FCF correlates with cell-surface expression of the H2B level. H2B blockade or downregulation reduces Plg-FCF, whereas its overexpression or high endogenous levels increases Plg-FCF. Modulating PAR1 level in mouse macrophages affects Plg-FCF. Activation/overexpression of PAR1 increases and its blockade/knockdown reduces this response. Confocal imaging indicates that both H2B and PAR1 colocalize with clathrin coated pits on the surface of macrophages, and reducing expression of clathrin or interfering with the clathrin-coated pits integrity reduces Plg-FCF. CONCLUSION Our data indicate that the magnitude of Plg-FCF by macrophages is proportional to the H2B levels and demonstrate for the first time that PAR1 is involved in this process and that the integrity of clathrin-coated pits is required for the full effect of Plg-induced FCF.
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Affiliation(s)
- Lahoucine Izem
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, Ohio, USA
| | - Katarzyna Bialkowska
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, Ohio, USA
| | - Elzbieta Pluskota
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, Ohio, USA
| | - Mitali Das
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, Ohio, USA
| | - Riku Das
- Roberts J. Tomsich Pathology & Laboratory Medicine Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | - Marvin T Nieman
- Department of Pharmacology, Case Western Reserve University, Cleveland, Ohio, USA
| | - Edward F Plow
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute Cleveland Clinic, Cleveland, Ohio, USA
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9
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Martínez de Paz A, Josefowicz SZ. Signaling-to-chromatin pathways in the immune system. Immunol Rev 2021; 300:37-53. [PMID: 33644906 PMCID: PMC8548991 DOI: 10.1111/imr.12955] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2020] [Revised: 01/08/2021] [Accepted: 01/11/2021] [Indexed: 02/01/2023]
Abstract
Complex organisms are able to respond to diverse environmental cues by rapidly inducing specific transcriptional programs comprising a few dozen genes among thousands. The highly complex environment within the nucleus-a crowded milieu containing large genomes tightly condensed with histone proteins in the form of chromatin-makes inducible transcription a challenge for the cell, akin to the proverbial needle in a haystack. The different signaling pathways and transcription factors involved in the transmission of information from the cell surface to the nucleus have been readily explored, but not so much the specific mechanisms employed by the cell to ultimately instruct the chromatin changes necessary for a fast and robust transcription activation. Signaling pathways rely on cascades of protein kinases that, in addition to activating transcription factors can also activate the chromatin template by phosphorylating histone proteins, what we refer to as "signaling-to-chromatin." These pathways appear to be selectively employed and especially critical for driving inducible transcription in macrophages and likely in diverse other immune cell populations. Here, we discuss signaling-to-chromatin pathways with potential relevance in diverse immune cell populations together with chromatin related mechanisms that help to "solve" the needle in a haystack challenge of robust chromatin activation and inducible transcription.
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Affiliation(s)
- Alexia Martínez de Paz
- Laboratory of Epigenetics and Immunity, Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Steven Zvi Josefowicz
- Laboratory of Epigenetics and Immunity, Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, NY, USA
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10
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Epigenetic Regulation of Pulmonary Arterial Hypertension-Induced Vascular and Right Ventricular Remodeling: New Opportunities? Int J Mol Sci 2020; 21:ijms21238901. [PMID: 33255338 PMCID: PMC7727715 DOI: 10.3390/ijms21238901] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 11/19/2020] [Accepted: 11/20/2020] [Indexed: 12/11/2022] Open
Abstract
Pulmonary artery hypertension (PAH) is a rare chronic disease with high impact on patients’ quality of life and currently no available cure. PAH is characterized by constant remodeling of the pulmonary artery by increased proliferation and migration of pulmonary arterial smooth muscle cells (PASMCs), fibroblasts (FBs) and endothelial cells (ECs). This remodeling eventually leads to increased pressure in the right ventricle (RV) and subsequent right ventricle hypertrophy (RVH) which, when left untreated, progresses into right ventricle failure (RVF). PAH can not only originate from heritable mutations, but also develop as a consequence of congenital heart disease, exposure to drugs or toxins, HIV, connective tissue disease or be idiopathic. While much attention was drawn into investigating and developing therapies related to the most well understood signaling pathways in PAH, in the last decade, a shift towards understanding the epigenetic mechanisms driving the disease occurred. In this review, we reflect on the different epigenetic regulatory factors that are associated with the pathology of RV remodeling, and on their relevance towards a better understanding of the disease and subsequently, the development of new and more efficient therapeutic strategies.
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11
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Khadka J, Pesok A, Grafi G. Plant Histone HTB (H2B) Variants in Regulating Chromatin Structure and Function. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1435. [PMID: 33113795 PMCID: PMC7694166 DOI: 10.3390/plants9111435] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 10/09/2020] [Accepted: 10/23/2020] [Indexed: 02/07/2023]
Abstract
Besides chemical modification of histone proteins, chromatin dynamics can be modulated by histone variants. Most organisms possess multiple genes encoding for core histone proteins, which are highly similar in amino acid sequence. The Arabidopsis thaliana genome contains 11 genes encoding for histone H2B (HTBs), 13 for H2A (HTAs), 15 for H3 (HTRs), and 8 genes encoding for histone H4 (HFOs). The finding that histone variants may be expressed in specific tissues and/or during specific developmental stages, often displaying specific nuclear localization and involvement in specific nuclear processes suggests that histone variants have evolved to carry out specific functions in regulating chromatin structure and function and might be important for better understanding of growth and development and particularly the response to stress. In this review, we will elaborate on a group of core histone proteins in Arabidopsis, namely histone H2B, summarize existing data, and illuminate the potential function of H2B variants in regulating chromatin structure and function in Arabidopsis thaliana.
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Affiliation(s)
| | | | - Gideon Grafi
- French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Midreshet Ben Gurion 84990, Israel; (J.K.); (A.P.)
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12
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Khan KA, Ng MK, Cheung P. The Use of Mononucleosome Immunoprecipitation for Analysis of Combinatorial Histone Post-translational Modifications and Purification of Nucleosome-Interacting Proteins. Front Cell Dev Biol 2020; 8:331. [PMID: 32457909 PMCID: PMC7225312 DOI: 10.3389/fcell.2020.00331] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 04/16/2020] [Indexed: 01/05/2023] Open
Abstract
The nucleosome is the principal structural unit of chromatin. Although many studies focus on individual histone post-translational modifications (PTMs) in isolation, it is important to recognize that multiple histone PTMs can function together or cross-regulate one another within the nucleosome context. In addition, different modifications or histone-binding surfaces can synergize to stabilize the binding of nuclear factors to nucleosomes. To facilitate these types of studies, we present here a step-by-step protocol for isolating high yields of mononucleosomes for biochemical analyses. Furthermore, we discuss differences and variations of the basic protocol used in different publications and characterize the relative abundance of selected histone PTMs and chromatin-binding proteins in the different chromatin fractions obtained by this method.
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Affiliation(s)
| | - Marlee K Ng
- Department of Biology, York University, Toronto, ON, Canada
| | - Peter Cheung
- Department of Biology, York University, Toronto, ON, Canada
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Liu Z, Yang L, Zhong C, Zhou L. EZH2 regulates H2B phosphorylation and elevates colon cancer cell autophagy. J Cell Physiol 2019; 235:1494-1503. [PMID: 31283006 DOI: 10.1002/jcp.29069] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Accepted: 06/14/2019] [Indexed: 12/23/2022]
Abstract
Epigenetic alterations, especially histone modification, play vital roles in the pathogenesis of colon cancer. Upregulation of the enhancer of zeste homolog 2 (EZH2) has been reported to contribute to the initiation and progression of colon cancer. This study analyzed the association between EZH2 and phosphorylation of H2B at tyrosine 37 (H2BY37ph ) in colon cancer tissues and cells, along with the influences of the EZH2-H2BY37ph axis on colon cancer cell autophagy. Immunohistochemistry was utilized to assess EZH2 and H2BY37ph expressions in clinical samples of colon cancer. Cell transfection was carried out to alter EZH2 and H2BY37ph expressions in colon cancer cells. Co-immunoprecipitation analysis and glutathione-S-transferase (GST) pull down assay were conducted to analyze the association between EZH2 and H2BY37ph . Western blotting was utilized to measure proteins expressions related to cell autophagy. We found that there was a positive association between EZH2 and H2BY37ph in colon cancer tissues and cells. EZH2 directly interacted with H2B and promoted H2BY37ph in colon cancer cells using ATP as a phosphate donor. Moreover, EZH2 levated colon cancer cell autophagy in starvation condition. H2BY37ph was required for EZH2-elevated colon cancer cell autophagy under starvation condition. The EZH2-H2BY37ph axis elevated colon cancer cell autophagy possibly via activating transcriptional regulation of ATG genes. In conclusion, EZH2-elevated colon cancer initiation and progression at least in part via inducing colon cancer cell autophagy. EZH2 could phosphorylate H2BY37 and then induce transcription activation of ATG genes in colon cancer cells under starvation condition.
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Affiliation(s)
- Zhongyuan Liu
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, Jining, China.,Affiliated Jining No.1 People's Hospital of Jining Medical University, Jining Medical University, Jining, China
| | - Le Yang
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, Jining, China
| | - Chongbai Zhong
- Department of General Surgery, Zoucheng Hospital of Traditional Chinese Medicine, Zoucheng, China
| | - Ling Zhou
- Department of Gastrointestinal Surgery, Jining No. 1 People's Hospital, Jining, China
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14
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HIPK2 and extrachromosomal histone H2B are separately recruited by Aurora-B for cytokinesis. Oncogene 2018; 37:3562-3574. [PMID: 29563611 PMCID: PMC6021368 DOI: 10.1038/s41388-018-0191-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/24/2018] [Accepted: 02/05/2018] [Indexed: 11/09/2022]
Abstract
Cytokinesis, the final phase of cell division, is necessary to form two distinct daughter cells with correct distribution of genomic and cytoplasmic materials. Its failure provokes genetically unstable states, such as tetraploidization and polyploidization, which can contribute to tumorigenesis. Aurora-B kinase controls multiple cytokinetic events, from chromosome condensation to abscission when the midbody is severed. We have previously shown that HIPK2, a kinase involved in DNA damage response and development, localizes at the midbody and contributes to abscission by phosphorylating extrachromosomal histone H2B at Ser14. Of relevance, HIPK2-defective cells do not phosphorylate H2B and do not successfully complete cytokinesis leading to accumulation of binucleated cells, chromosomal instability, and increased tumorigenicity. However, how HIPK2 and H2B are recruited to the midbody during cytokinesis is still unknown. Here, we show that regardless of their direct (H2B) and indirect (HIPK2) binding of chromosomal DNA, both H2B and HIPK2 localize at the midbody independently of nucleic acids. Instead, by using mitotic kinase-specific inhibitors in a spatio-temporal regulated manner, we found that Aurora-B kinase activity is required to recruit both HIPK2 and H2B to the midbody. Molecular characterization showed that Aurora-B directly binds and phosphorylates H2B at Ser32 while indirectly recruits HIPK2 through the central spindle components MgcRacGAP and PRC1. Thus, among different cytokinetic functions, Aurora-B separately recruits HIPK2 and H2B to the midbody and these activities contribute to faithful cytokinesis.
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Shanmugam MK, Arfuso F, Arumugam S, Chinnathambi A, Jinsong B, Warrier S, Wang LZ, Kumar AP, Ahn KS, Sethi G, Lakshmanan M. Role of novel histone modifications in cancer. Oncotarget 2018; 9:11414-11426. [PMID: 29541423 PMCID: PMC5834259 DOI: 10.18632/oncotarget.23356] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 12/01/2017] [Indexed: 01/02/2023] Open
Abstract
Oncogenesis is a multistep process mediated by a variety of factors including epigenetic modifications. Global epigenetic post-translational modifications have been detected in almost all cancers types. Epigenetic changes appear briefly and do not involve permanent changes to the primary DNA sequence. These epigenetic modifications occur in key oncogenes, tumor suppressor genes, and transcription factors, leading to cancer initiation and progression. The most commonly observed epigenetic changes include DNA methylation, histone lysine methylation and demethylation, histone lysine acetylation and deacetylation. However, there are several other novel post-translational modifications that have been observed in recent times such as neddylation, sumoylation, glycosylation, phosphorylation, poly-ADP ribosylation, ubiquitination as well as transcriptional regulation and these have been briefly discussed in this article. We have also highlighted the diverse epigenetic changes that occur during the process of tumorigenesis and described the role of histone modifications that can occur on tumor suppressor genes as well as oncogenes, which regulate tumorigenesis and can thus form the basis of novel strategies for cancer therapy.
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Affiliation(s)
- Muthu K. Shanmugam
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Frank Arfuso
- Stem Cell and Cancer Biology Laboratory, School of Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Surendar Arumugam
- Institute of Molecular and Cell Biology, A*STAR, Biopolis Drive, Proteos, Singapore, Singapore
| | - Arunachalam Chinnathambi
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia
| | - Bian Jinsong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Sudha Warrier
- Division of Cancer Stem Cells and Cardiovascular Regeneration, School of Regenerative Medicine, Manipal Academy of Higher Education (MAHE), Bangalore, India
| | - Ling Zhi Wang
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Alan Prem Kumar
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
- Curtin Medical School, Faculty of Health Sciences, Curtin University, Perth, WA, Australia
- National University Cancer Institute, National University Health System, Singapore, Singapore
- Department of Biological Sciences, University of North Texas, Denton, Texas, USA
| | - Kwang Seok Ahn
- College of Korean Medicine, Kyung Hee University, Dongdaemun-gu, Seoul, Korea
| | - Gautam Sethi
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Manikandan Lakshmanan
- Institute of Molecular and Cell Biology, A*STAR, Biopolis Drive, Proteos, Singapore, Singapore
- Department of Pathology, National University Hospital Singapore, Singapore, Singapore
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16
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Kumar R, Deivendran S, Santhoshkumar TR, Pillai MR. Signaling coupled epigenomic regulation of gene expression. Oncogene 2017. [DOI: 10.1038/onc.2017.201] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Cho YY. RSK2 and its binding partners in cell proliferation, transformation and cancer development. Arch Pharm Res 2016; 40:291-303. [DOI: 10.1007/s12272-016-0880-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 12/17/2016] [Indexed: 12/31/2022]
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Cheng J, Zhang T, Ji H, Tao K, Guo J, Wei W. Functional characterization of AMP-activated protein kinase signaling in tumorigenesis. Biochim Biophys Acta Rev Cancer 2016; 1866:232-251. [PMID: 27681874 DOI: 10.1016/j.bbcan.2016.09.006] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 09/22/2016] [Accepted: 09/23/2016] [Indexed: 12/13/2022]
Abstract
AMP-activated protein kinase (AMPK) is a ubiquitously expressed metabolic sensor among various species. Specifically, cellular AMPK is phosphorylated and activated under certain stressful conditions, such as energy deprivation, in turn to activate diversified downstream substrates to modulate the adaptive changes and maintain metabolic homeostasis. Recently, emerging evidences have implicated the potential roles of AMPK signaling in tumor initiation and progression. Nevertheless, a comprehensive description on such topic is still in scarcity, especially in combination of its biochemical features with mouse modeling results to elucidate the physiological role of AMPK signaling in tumorigenesis. Hence, we performed this thorough review by summarizing the tumorigenic role of each component along the AMPK signaling, comprising of both its upstream and downstream effectors. Moreover, their functional interplay with the AMPK heterotrimer and exclusive efficacies in carcinogenesis were chiefly explained among genetically altered mice models. Importantly, the pharmaceutical investigations of AMPK relevant medications have also been highlighted. In summary, in this review, we not only elucidate the potential functions of AMPK signaling pathway in governing tumorigenesis, but also potentiate the future targeted strategy aiming for better treatment of aberrant metabolism-associated diseases, including cancer.
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Affiliation(s)
- Ji Cheng
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China; Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Tao Zhang
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA
| | - Hongbin Ji
- Key Laboratory of Systems Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Science, Shanghai 200031, People's Republic of China
| | - Kaixiong Tao
- Department of Gastrointestinal Surgery, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, People's Republic of China.
| | - Jianping Guo
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
| | - Wenyi Wei
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
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Liu F, Wang L, Perna F, Nimer SD. Beyond transcription factors: how oncogenic signalling reshapes the epigenetic landscape. Nat Rev Cancer 2016; 16:359-72. [PMID: 27220480 PMCID: PMC5548460 DOI: 10.1038/nrc.2016.41] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cancer, once thought to be caused largely by genetic alterations, is now considered to be a mixed genetic and epigenetic disease. The epigenetic landscape, which is dictated by covalent DNA and histone modifications, is profoundly altered in transformed cells. These abnormalities may arise from mutations in, or altered expression of, chromatin modifiers. Recent reports on the interplay between cellular signalling pathways and chromatin modifications add another layer of complexity to the already complex regulation of the epigenome. In this Review, we discuss these new studies and how the insights they provide can contribute to a better understanding of the molecular pathogenesis of neoplasia.
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Affiliation(s)
- Fan Liu
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL 33136
- Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, FL 33136
| | - Lan Wang
- Institute of Health Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences/School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- State Key Laboratory of Medical Genomics, Shanghai Institute of Hematology, Rui Jin Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Fabiana Perna
- Molecular Pharmacology and Chemistry Program, Sloan-Kettering Institute, Memorial Sloan-Kettering Cancer Center, New York, NY 10065
| | - Stephen D. Nimer
- Department of Biochemistry and Molecular Biology, University of Miami, Miller School of Medicine, Miami, FL 33136
- Sylvester Comprehensive Cancer Center, University of Miami, Miller School of Medicine, Miami, FL 33136
- Department of Internal Medicine, University of Miami, Miller School of Miami, FL33136
- Corresponding Author:
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20
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Li J, Hardy K, Phetsouphanh C, Tu WJ, Sutcliffe EL, McCuaig R, Sutton CR, Zafar A, Munier CML, Zaunders JJ, Xu Y, Theodoratos A, Tan A, Lim PS, Knaute T, Masch A, Zerweck J, Brezar V, Milburn PJ, Dunn J, Casarotto MG, Turner SJ, Seddiki N, Kelleher AD, Rao S. Nuclear PKC-θ facilitates rapid transcriptional responses in human memory CD4+ T cells through p65 and H2B phosphorylation. J Cell Sci 2016; 129:2448-61. [PMID: 27149922 PMCID: PMC4920249 DOI: 10.1242/jcs.181248] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 04/21/2016] [Indexed: 12/14/2022] Open
Abstract
Memory T cells are characterized by their rapid transcriptional programs upon re-stimulation. This transcriptional memory response is facilitated by permissive chromatin, but exactly how the permissive epigenetic landscape in memory T cells integrates incoming stimulatory signals remains poorly understood. By genome-wide ChIP-sequencing ex vivo human CD4+ T cells, here, we show that the signaling enzyme, protein kinase C theta (PKC-θ) directly relays stimulatory signals to chromatin by binding to transcriptional-memory-responsive genes to induce transcriptional activation. Flanked by permissive histone modifications, these PKC-enriched regions are significantly enriched with NF-κB motifs in ex vivo bulk and vaccinia-responsive human memory CD4+ T cells. Within the nucleus, PKC-θ catalytic activity maintains the Ser536 phosphorylation on the p65 subunit of NF-κB (also known as RelA) and can directly influence chromatin accessibility at transcriptional memory genes by regulating H2B deposition through Ser32 phosphorylation. Furthermore, using a cytoplasm-restricted PKC-θ mutant, we highlight that chromatin-anchored PKC-θ integrates activating signals at the chromatin template to elicit transcriptional memory responses in human memory T cells. Summary: Memory T cells have a rapid transcriptional program upon re-stimulation. Chromatin-anchored PKC-θ integrates activating signals at the chromatin template to elicit this transcriptional memory in T cells.
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Affiliation(s)
- Jasmine Li
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia Department of Microbiology & Immunology, The Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Kristine Hardy
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Chan Phetsouphanh
- The Kirby Institute, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Wen Juan Tu
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Elissa L Sutcliffe
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Robert McCuaig
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Christopher R Sutton
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Anjum Zafar
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - C Mee Ling Munier
- The Kirby Institute, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - John J Zaunders
- The Kirby Institute, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Yin Xu
- The Kirby Institute, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Angelo Theodoratos
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 0200, Australia
| | - Abel Tan
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Pek Siew Lim
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Tobias Knaute
- JPT Peptide Technologies Gmbh, Berlin 12489, Germany
| | - Antonia Masch
- Department of Enzymology, Institute of Biochemistry & Biotechnology, Martin-Luther-University Halle-Wittenberg, Halle 06108, Germany
| | | | - Vedran Brezar
- INSERM U955 Eq16 Faculte de medicine Henri Mondor and Universite Paris-Est Creteil/Vaccine Research Institute, Creteil 94010, France
| | - Peter J Milburn
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 0200, Australia
| | - Jenny Dunn
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
| | - Marco G Casarotto
- The John Curtin School of Medical Research, The Australian National University, Canberra, Australian Capital Territory 0200, Australia
| | - Stephen J Turner
- Department of Microbiology & Immunology, The Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria 3010, Australia
| | - Nabila Seddiki
- INSERM U955 Eq16 Faculte de medicine Henri Mondor and Universite Paris-Est Creteil/Vaccine Research Institute, Creteil 94010, France
| | - Anthony D Kelleher
- The Kirby Institute, UNSW Australia, Sydney, New South Wales 2052, Australia
| | - Sudha Rao
- Faculty of Education, Science, Technology & Mathematics, University of Canberra, Canberra, Australian Capital Territory 2617, Australia
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Balasubramanian S, Pleasant DL, Kasiganesan H, Quinones L, Zhang Y, Sundararaj KP, Roche S, O’Connor R, Bradshaw AD, Kuppuswamy D. Dasatinib Attenuates Pressure Overload Induced Cardiac Fibrosis in a Murine Transverse Aortic Constriction Model. PLoS One 2015; 10:e0140273. [PMID: 26458186 PMCID: PMC4601773 DOI: 10.1371/journal.pone.0140273] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 09/23/2015] [Indexed: 01/19/2023] Open
Abstract
Reactive cardiac fibrosis resulting from chronic pressure overload (PO) compromises ventricular function and contributes to congestive heart failure. We explored whether nonreceptor tyrosine kinases (NTKs) play a key role in fibrosis by activating cardiac fibroblasts (CFb), and could potentially serve as a target to reduce PO-induced cardiac fibrosis. Our studies were carried out in PO mouse myocardium induced by transverse aortic constriction (TAC). Administration of a tyrosine kinase inhibitor, dasatinib, via an intraperitoneally implanted mini-osmotic pump at 0.44 mg/kg/day reduced PO-induced accumulation of extracellular matrix (ECM) proteins and improved left ventricular geometry and function. Furthermore, dasatinib treatment inhibited NTK activation (primarily Pyk2 and Fak) and reduced the level of FSP1 positive cells in the PO myocardium. In vitro studies using cultured mouse CFb showed that dasatinib treatment at 50 nM reduced: (i) extracellular accumulation of both collagen and fibronectin, (ii) both basal and PDGF-stimulated activation of Pyk2, (iii) nuclear accumulation of Ki67, SKP2 and histone-H2B and (iv) PDGF-stimulated CFb proliferation and migration. However, dasatinib did not affect cardiomyocyte morphologies in either the ventricular tissue after in vivo administration or in isolated cells after in vitro treatment. Mass spectrometric quantification of dasatinib in cultured cells indicated that the uptake of dasatinib by CFb was greater that that taken up by cardiomyocytes. Dasatinib treatment primarily suppressed PDGF but not insulin-stimulated signaling (Erk versus Akt activation) in both CFb and cardiomyocytes. These data indicate that dasatinib treatment at lower doses than that used in chemotherapy has the capacity to reduce hypertrophy-associated fibrosis and improve ventricular function.
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Affiliation(s)
- Sundaravadivel Balasubramanian
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Dorea L. Pleasant
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Harinath Kasiganesan
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Lakeya Quinones
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Yuhua Zhang
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Kamala P. Sundararaj
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | | | | | - Amy D. Bradshaw
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
| | - Dhandapani Kuppuswamy
- Cardiology Division of the Department of Medicine, Gazes Cardiac Research Institute, 114 Doughty Street, Charleston, South Carolina, United States of America
- * E-mail:
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23
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Lee CJ, Lee MH, Yoo SM, Choi KI, Song JH, Jang JH, Oh SR, Ryu HW, Lee HS, Surh YJ, Cho YY. Magnolin inhibits cell migration and invasion by targeting the ERKs/RSK2 signaling pathway. BMC Cancer 2015; 15:576. [PMID: 26253302 PMCID: PMC4529708 DOI: 10.1186/s12885-015-1580-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Accepted: 07/27/2015] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Magnolin is a natural compound abundantly found in Magnolia flos, which has been traditionally used in oriental medicine to treat headaches, nasal congestion and anti-inflammatory reactions. Our recent results have demonstrated that magnolin targets the active pockets of ERK1 and ERK2, which are important signaling molecules in cancer cell metastasis. The aim of this study is to evaluate the effects of magnolin on cell migration and to further explore the molecular mechanisms involved. METHODS Magnolin-mediated signaling inhibition was confirmed by Western blotting using RSK2(+/+) and RSK2(-/-) MEFs, A549 and NCI-H1975 lung cancer cells, and by NF-κB and Cox-2 promoter luciferase reporter assays. Inhibition of cell migration by magnolin was examined by wound healing and/or Boyden Chamber assays using JB6 Cl41 and A549 human lung cancer cells. The molecular mechanisms involved in cell migration and epithelial-to-mesenchymal transition were determined by zymography, Western blotting, real-time PCR and immunocytofluorescence. RESULTS Magnolin inhibited NF-κB transactivation activity by suppressing the ERKs/RSK2 signaling pathway. Moreover, magnolin abrogated the increase in EGF-induced COX-2 protein levels and wound healing. In human lung cancer cells such as A549 and NCI-H1975, which harbor constitutive active Ras and EGFR mutants, respectively, magnolin suppressed wound healing and cell invasion as seen by a Boyden chamber assay. In addition, it was observed that magnolin inhibited MMP-2 and -9 gene expression and activity. The knockdown or knockout of RSK2 in A549 lung cancer cells or MEFs revealed that magnolin targeting ERKs/RSK2 signaling suppressed epithelial-to-mesenchymal transition by modulating EMT marker proteins such as N-cadherin, E-cadherin, Snail, Vimentin and MMPs. CONCLUSIONS These results demonstrate that magnolin inhibits cell migration and invasion by targeting the ERKs/RSK2 signaling pathway.
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Affiliation(s)
- Cheol-Jung Lee
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Mee-Hyun Lee
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Sun-Mi Yoo
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Kyung-Il Choi
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Ji-Hong Song
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Jeong-Hoon Jang
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea. .,College of Pharmacy, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
| | - Sei-Ryang Oh
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, ChungBuk, 363-883, Republic of Korea.
| | - Hyung-Won Ryu
- Natural Medicine Research Center, Korea Research Institute of Bioscience & Biotechnology, 30 Yeongudanji-ro, Ochang-eup, Cheongwon-gun, ChungBuk, 363-883, Republic of Korea.
| | - Hye-Suk Lee
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
| | - Young-Joon Surh
- College of Pharmacy, Seoul National University, 1, Gwanak-ro, Gwanak-gu, Seoul, 151-742, Republic of Korea.
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, 43, Jibong-ro, Wonmi-gu, Bucheon-si, Gyeonggi-do, 420-743, Republic of Korea.
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24
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Affiliation(s)
- He Huang
- Ben May Department of Cancer Research, The University of Chicago, Chicago, Illinois 60637, United States
| | - Shu Lin
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Benjamin A. Garcia
- Department of Biochemistry and Biophysics, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Yingming Zhao
- Ben May Department of Cancer Research, The University of Chicago, Chicago, Illinois 60637, United States
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Chemical “Diversity” of Chromatin Through Histone Variants and Histone Modifications. ACTA ACUST UNITED AC 2015. [DOI: 10.1007/s40610-015-0005-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Pentakota SK, Sandhya S, P Sikarwar A, Chandra N, Satyanarayana Rao MR. Mapping post-translational modifications of mammalian testicular specific histone variant TH2B in tetraploid and haploid germ cells and their implications on the dynamics of nucleosome structure. J Proteome Res 2014; 13:5603-17. [PMID: 25252820 DOI: 10.1021/pr500597a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Histones regulate a variety of chromatin templated events by their post-translational modifications (PTMs). Although there are extensive reports on the PTMs of canonical histones, the information on the histone variants remains very scanty. Here, we report the identification of different PTMs, such as acetylation, methylation, and phosphorylation of a major mammalian histone variant TH2B. Our mass spectrometric analysis has led to the identification of both conserved and unique modifications across tetraploid spermatocytes and haploid spermatids. We have also computationally derived the 3-dimensional model of a TH2B containing nucleosome in order to study the spatial orientation of the PTMs identified and their effect on nucleosome stability and DNA binding potential. From our nucleosome model, it is evident that substitution of specific amino acid residues in TH2B results in both differential histone-DNA and histone-histone contacts. Furthermore, we have also observed that acetylation on the N-terminal tail of TH2B weakens the interactions with the DNA. These results provide direct evidence that, similar to somatic H2B, the testis specific histone TH2B also undergoes multiple PTMs, suggesting the possibility of chromatin regulation by such covalent modifications in mammalian male germ cells.
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Affiliation(s)
- Satya Krishna Pentakota
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Centre for Advanced Scientific Research , Bangalore, Karnataka 560064, India
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Kim K, Kim JM, Kim JS, Choi J, Lee YS, Neamati N, Song JS, Heo K, An W. VprBP has intrinsic kinase activity targeting histone H2A and represses gene transcription. Mol Cell 2013; 52:459-67. [PMID: 24140421 DOI: 10.1016/j.molcel.2013.09.017] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Revised: 06/26/2013] [Accepted: 09/11/2013] [Indexed: 10/26/2022]
Abstract
Histone modifications play important roles in the regulation of gene expression and chromatin organization. VprBP has been implicated in transcriptionally silent chromatin formation and cell-cycle regulation, but the molecular basis underlying such effects remains unclear. Here we report that VprBP possesses an intrinsic protein kinase activity and is capable of phosphorylating histone H2A on threonine 120 (H2AT120p) in a nucleosomal context. VprBP is localized to a large set of tumor suppressor genes and blocks their transcription, in a manner that is dependent on its kinase activity toward H2AT120. The functional significance of VprBP-mediated H2AT120p is further underscored by the fact that RNAi knockdown and small-molecule inhibition of VprBP reactivate growth regulatory genes and impede tumor growth. Our findings establish VprBP as a major kinase responsible for H2AT120p in cancer cells and suggest that VprBP inhibition could be a new strategy for the development of anticancer therapeutics.
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Affiliation(s)
- Kyunghwan Kim
- Department of Biochemistry and Molecular Biology, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA; Norris Comprehensive Cancer Center, University of Southern California Keck School of Medicine, Los Angeles, CA 90089, USA
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Arul N, Cho YY. A Rising Cancer Prevention Target of RSK2 in Human Skin Cancer. Front Oncol 2013; 3:201. [PMID: 23936765 PMCID: PMC3733026 DOI: 10.3389/fonc.2013.00201] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 07/23/2013] [Indexed: 02/06/2023] Open
Abstract
RSK2 is a p90 ribosomal S6 kinase family (p90(RSK)) member regulating cell proliferation and transformation induced by tumor promoters such as epithelial growth factor (EGF) and 12-O-tetradecanoylphorbol-13-acetate. This family of p90(RSK) has classified as a serine/threonine kinase that respond to many growth factors, peptide hormones, neurotransmitters, and environmental stresses such as ultraviolet (UV) light. Our recent study demonstrates that RSK2 plays a key role in human skin cancer development. Activation of RSK2 by EGF and UV through extracellular-activated protein kinases signaling pathway induces cell cycle progression, cell proliferation, and anchorage-independent cell transformation. Moreover, knockdown of RSK2 by si-RNA or sh-RNA abrogates cell proliferation and cell transformation of non-malignant human skin keratinocyte, and colony growth of malignant melanoma (MM) cells in soft agar. Importantly, activated and total RSK2 protein levels are highly detected in human skin cancer tissues including squamous cell carcinoma, basal-cell carcinoma, and MM. Kaempferol and eriodictyol are natural substances to inhibit kinase activity of the RSK2 N-terminal kinase domain, which is a critical kinase domain to transduce their activation signals to the substrates by phosphorylation. In this review, we discuss the role of RSK2 in skin cancer, particularly in activation of signaling pathways and potent natural substances to target RSK2 as chemopreventive and therapeutic agents.
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Affiliation(s)
- Narayanasamy Arul
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Republic of Korea
| | - Yong-Yeon Cho
- College of Pharmacy, The Catholic University of Korea, Bucheon-si, Republic of Korea
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Chan KM, Han J, Fang D, Gan H, Zhang Z. A lesson learned from the H3.3K27M mutation found in pediatric glioma: a new approach to the study of the function of histone modifications in vivo? Cell Cycle 2013; 12:2546-52. [PMID: 23907119 DOI: 10.4161/cc.25625] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Glioblastoma (GBM) is the most aggressive primary brain tumor in human. Recent studies on high-grade pediatric GBM have identified two recurrent mutations (K27M and G34R/V) in genes encoding histone H3 (H3F3A for H3.3 and HIST1H3B for H3.1). The two histone H3 mutations are mutually exclusive and give rise to tumors in different brain compartments. Recently, we and others have shown that the histone H3 K27M mutation specifically altered the di- and tri-methylation of endogenous histone H3 at Lys27. Genome-wide studies using ChIP-seq on H3.3K27M patient samples indicate a global reduction of H3K27me3 on chromatin. Remarkably, we also found a dramatic enrichment of H3K27me3 and EZH2 (the catalytic subunit H3K27 methyltransferase) at hundreds of gene loci in H3.3K27M patient cells. Here, we discuss potential mechanisms whereby H3K27me3 is enriched at chromatin loci in cells expressing the H3.3K27M mutation and report effects of Lys-to-Met mutations of other well-studied lysine residues of histone H3.1/H3.3 and H4 on the corresponding endogenous lysine methylation. We suggest that mutation(s) on histones may be found in a variety of human diseases, and the expression of mutant histones may help to address the function of histone lysine methylation and possibly other modifications in mammalian cells.
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Affiliation(s)
- Kui Ming Chan
- Department of Biochemistry and Molecular Biology, Epigenomic Developmental Program, Center of Individualized Medicine, Mayo Clinic, Rochester, MN, USA
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Rossetto D, Avvakumov N, Côté J. Histone phosphorylation: a chromatin modification involved in diverse nuclear events. Epigenetics 2012; 7:1098-108. [PMID: 22948226 DOI: 10.4161/epi.21975] [Citation(s) in RCA: 338] [Impact Index Per Article: 28.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Histone posttranslational modifications are key components of diverse processes that modulate chromatin structure. These marks function as signals during various chromatin-based events, and act as platforms for recruitment, assembly or retention of chromatin-associated factors. The best-known function of histone phosphorylation takes place during cellular response to DNA damage, when phosphorylated histone H2A(X) demarcates large chromatin domains around the site of DNA breakage. However, multiple studies have also shown that histone phosphorylation plays crucial roles in chromatin remodeling linked to other nuclear processes. In this review, we summarize the current knowledge of histone phosphorylation and describe the many kinases and phosphatases that regulate it. We discuss the key roles played by this histone mark in DNA repair, transcription and chromatin compaction during cell division and apoptosis. Additionally, we describe the intricate crosstalk that occurs between phosphorylation and other histone modifications and allows for sophisticated control over the chromatin remodeling processes.
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Affiliation(s)
- Dorine Rossetto
- Laval University Cancer Research Center, Hôtel-Dieu de Québec, Quebec City, QC, Canada
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