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Yokoyama A, Niida H, Kutateladze TG, Côté J. HBO1, a MYSTerious KAT and its links to cancer. BIOCHIMICA ET BIOPHYSICA ACTA. GENE REGULATORY MECHANISMS 2024; 1867:195045. [PMID: 38851533 DOI: 10.1016/j.bbagrm.2024.195045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 05/27/2024] [Accepted: 06/01/2024] [Indexed: 06/10/2024]
Abstract
The histone acetyltransferase HBO1, also known as KAT7, is a major chromatin modifying enzyme responsible for H3 and H4 acetylation. It is found within two distinct tetrameric complexes, the JADE subunit-containing complex and BRPF subunit-containing complex. The HBO1-JADE complex acetylates lysine 5, 8 and 12 of histone H4, and the HBO1-BRPF complex acetylates lysine 14 of histone H3. HBO1 regulates gene transcription, DNA replication, DNA damage repair, and centromere function. It is involved in diverse signaling pathways and plays crucial roles in development and stem cell biology. Recent work has established a strong relationship of HBO1 with the histone methyltransferase MLL/KMT2A in acute myeloid leukemia. Here, we discuss functional and pathological links of HBO1 to cancer, highlighting the underlying mechanisms that may pave the way to the development of novel anti-cancer therapies.
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Affiliation(s)
- Akihiko Yokoyama
- Tsuruoka Metabolomics Laboratory, National Cancer Center, Tsuruoka, Yamagata 997-0052, Japan.
| | - Hiroyuki Niida
- Department of Molecular Biology, Hamamatsu University School of Medicine, Hamamatsu, Shizuoka 431-3192, Japan
| | - Tatiana G Kutateladze
- Department of Pharmacology, University of Colorado School of Medicine, Aurora, CO 80045, United States of America.
| | - Jacques Côté
- St-Patrick Research Group in Basic Oncology, Oncology Division-CHU de Québec-UL Research Center, Laval University Cancer Research Center, Quebec City, QC G1R 3S3, Canada.
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2
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Tsukiboshi Y, Mikami Y, Horita H, Ogata A, Noguchi A, Yokota S, Ogata K, Yoshioka H. Protective effect of Sasa veitchii extract against all-trans-retinoic acid-induced inhibition of proliferation of cultured human palate cells. NAGOYA JOURNAL OF MEDICAL SCIENCE 2024; 86:223-236. [PMID: 38962411 PMCID: PMC11219230 DOI: 10.18999/nagjms.86.2.223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 09/01/2023] [Indexed: 07/05/2024]
Abstract
Cleft palate is the most common facial birth defect worldwide. It is caused by environmental factors or genetic mutations. Environmental factors such as pharmaceutical exposure in women are known to induce cleft palate. The aim of the present study was to investigate the protective effect of Sasa veitchii extract against medicine-induced inhibition of proliferation of human embryonic palatal mesenchymal cells. We demonstrated that all-trans-retinoic acid inhibited human embryonic palatal mesenchymal cell proliferation in a dose-dependent manner, whereas dexamethasone treatment had no effect on cell proliferation. Cotreatment with Sasa veitchii extract repressed all-trans-retinoic acid-induced toxicity in human embryonic palatal mesenchymal cells. We found that cotreatment with Sasa veitchii extract protected all-trans-retinoic acid-induced cyclin D1 downregulation in human embryonic palatal mesenchymal cells. Furthermore, Sasa veitchii extract suppressed all-trans-retinoic acid-induced miR-4680-3p expression. Additionally, the expression levels of the genes that function downstream of the target genes ( ERBB2 and JADE1 ) of miR-4680-3p in signaling pathways were enhanced by cotreatment with Sasa veitchii extract and all-trans-retinoic acid compared to all-trans-retinoic acid treatment. These results suggest that Sasa veitchii extract suppresses all-trans-retinoic acid-induced inhibition of cell proliferation via modulation of miR-4680-3p expression.
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Affiliation(s)
- Yosuke Tsukiboshi
- Department of Pharmacy, Gifu University of Medical Science, Kani, Japan
| | - Yurie Mikami
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hanane Horita
- Department of Pharmacy, Gifu University of Medical Science, Kani, Japan
| | - Aya Ogata
- Department of Pharmacy, Gifu University of Medical Science, Kani, Japan
| | - Azumi Noguchi
- Department of Cell Biology, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences, Kawasaki, Japan
| | - Kenichi Ogata
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hiroki Yoshioka
- Department of Pharmacy, Gifu University of Medical Science, Kani, Japan
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3
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Wang J, Chai B, Yang Y, Chen C, Ren Y, Li Y, Wang ZQ, Li T. JADE1 is dispensable for the brain development in mice. Biochem Biophys Res Commun 2024; 695:149421. [PMID: 38171233 DOI: 10.1016/j.bbrc.2023.149421] [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: 12/02/2023] [Accepted: 12/20/2023] [Indexed: 01/05/2024]
Abstract
In mammalian brain development, WNT signaling balances proliferation and differentiation of neural progenitor cells, and is essential for the maintenance of regular brain development. JADE1 is a candidate transcription co-factor essential for DNA replication, cell division, and cell cycle regulation. In 293T cells, JADE1 is stabilized by von Hippel-Lindau protein pVHL, promotes the β-catenin ubiquitination and thus blunts canonical WNT signaling. Furthermore, JADE1 inhibits β-catenin-induced ectopic axis formation in Xenopus embryos. However, JADE1's role in mammalian brain development remains unknown. Here, we generated a new Jade1 knockout mouse line using CRISPR-Cas9 technology. We found that JADE1 null resulted in decreased survival rate, reduced body weight and brain weight in mice. However, histological analysis revealed a normal brain development. Furthermore, Jade1 null neural progenitor cells proliferated normally in vivo and in vitro. RNA-seq analysis further showed that JADE1 loss did not affect the cerebral cortex gene expression. Our findings indicate that JADE1 is dispensable for developing the cerebral cortex in mice.
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Affiliation(s)
- Jingpeng Wang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Baihui Chai
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Yanlang Yang
- Department of Nephrology, Affiliated Yijishan Hospital, Wannan Medical College, Wuhu, China
| | - Chengyan Chen
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Yaoxin Ren
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Yan Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China
| | - Zhao-Qi Wang
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China; Faculty of Biological Sciences, Friedrich-Schiller-University of Jena, Jena, Germany
| | - Tangliang Li
- State Key Laboratory of Microbial Technology, Shandong University, Qingdao, China; School of Basic Medical Sciences, Hangzhou Normal University, Hangzhou, China.
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4
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Tsukiboshi Y, Horita H, Mikami Y, Noguchi A, Yokota S, Ogata K, Yoshioka H. Involvement of microRNA-4680-3p against phenytoin-induced cell proliferation inhibition in human palate cells. J Toxicol Sci 2024; 49:1-8. [PMID: 38191190 DOI: 10.2131/jts.49.1] [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] [Indexed: 01/10/2024]
Abstract
Cleft palate (CP) is one of the most common birth defects and is caused by a combination of genetic and/or environmental factors. Environmental factors such as pharmaceutical exposure in pregnant women are known to induce CP. Recently, microRNA (miRNA) was found to be affected by environmental factors. The aim of the present study was to investigate the involvement of miRNA against phenytoin (PHE)-induced inhibition of proliferation in human embryonic palatal mesenchymal (HEPM) cells. We demonstrated that PHE inhibited HEPM cell proliferation in a dose-dependent manner. We found that treatment with PHE downregulated cyclin-D1 and cyclin-E expressions in HEPM cells. Furthermore, PHE increased miR-4680-3p expression and decreased two downstream genes (ERBB2 and JADE1). Importantly, an miR-4680-3p-specific inhibitor restored HEPM cell proliferation and altered expression of ERBB2 and JADE1 in cells treated with PHE. These results suggest that PHE suppresses cell proliferation via modulation of miR-4680-3p expression.
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Affiliation(s)
| | - Hanane Horita
- Department of Pharmacy, Gifu University of Medical Science
| | - Yurie Mikami
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University
| | - Azumi Noguchi
- Department Cell Biology, Nagasaki University Graduate School of Biomedical Sciences
| | - Satoshi Yokota
- Division of Cellular and Molecular Toxicology, Center for Biological Safety and Research, National Institute of Health Sciences
| | - Kenichi Ogata
- Section of Oral and Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University
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5
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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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6
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Cheng AS, Li X. The Potential Biotherapeutic Targets of Contrast-Induced Acute Kidney Injury. Int J Mol Sci 2023; 24:8254. [PMID: 37175958 PMCID: PMC10178966 DOI: 10.3390/ijms24098254] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 04/27/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
Contrast-induced acute kidney injury (CI-AKI) is manifested by an abrupt decline in kidney function as a consequence of intravascular exposure to contrast media. With the increased applicability of medical imaging and interventional procedures that utilize contrast media for clinical diagnosis, CI-AKI is becoming the leading cause of renal dysfunction. The pathophysiological mechanism associated with CI-AKI involves renal medullary hypoxia, the direct toxicity of contrast agents, oxidative stress, apoptosis, inflammation, and epigenetic regulation. To date, there is no effective therapy for CI-AKI, except for the development of strategies that could reduce the toxicity profiles of contrast media. While most of these strategies have failed, evidence has shown that the proper use of personalized hydration, contrast medium, and high-dose statins may reduce the occurrence of CI-AKI. However, adequate risk predication and attempts to develop preventive strategies can be considered as the key determinants that can help eliminate CI-AKI. Additionally, a deeper understanding of the pathophysiological mechanism of CI-AKI is crucial to uncover molecular targets for the prevention of CI-AKI. This review has taken a step further to solidify the current known molecular mechanisms of CI-AKI and elaborate the biomarkers that are used to detect early-stage CI-AKI. On this foundation, this review will analyze the molecular targets relating to apoptosis, inflammation, oxidative stress, and epigenetics, and, thus, provide a strong rationale for therapeutic intervention in the prevention of CI-AKI.
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Affiliation(s)
- Alice Shasha Cheng
- Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA;
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | - Xiaogang Li
- Department of Internal Medicine, Mayo Clinic, Rochester, MN 55905, USA;
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
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7
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Wang J, Shen F, Liu F, Zhuang S. Histone Modifications in Acute Kidney Injury. KIDNEY DISEASES (BASEL, SWITZERLAND) 2022; 8:466-477. [PMID: 36590679 PMCID: PMC9798838 DOI: 10.1159/000527799] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 10/24/2022] [Indexed: 11/12/2022]
Abstract
Background Acute kidney injury (AKI) is a serious clinical problem associated with high morbidity and mortality worldwide. The pathophysiology and pathogenesis of AKI is complex and multifactorial. In recent years, epigenetics has emerged as an important regulatory mechanism in AKI. Summary There are several types of histone modification, including methylation, acetylation, phosphorylation, crotonylation, citrullination, and sumoylation. Histone modifications are associated with the transcription of many genes and activation of multiple signaling pathways that contribute to the pathogenesis of AKI. Thus, targeting histone modification may offer novel strategies to protect kidneys from AKI and enhance kidney repair and recovery. In this review, we summarize recent advances on the modification, regulation, and implication of histone modifications in AKI. Key Messages Histone modifications contribute to the pathogenesis of AKI. Understanding of epigenetic regulation in AKI will aid in establishing the utility of pharmacologic targeting of histone modification as a potential novel therapy for AKI.
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Affiliation(s)
- Jun Wang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Fengchen Shen
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Feng Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, USA
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8
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Galloy M, Lachance C, Cheng X, Distéfano-Gagné F, Côté J, Fradet-Turcotte A. Approaches to Study Native Chromatin-Modifying Complex Activities and Functions. Front Cell Dev Biol 2021; 9:729338. [PMID: 34604228 PMCID: PMC8481805 DOI: 10.3389/fcell.2021.729338] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 08/24/2021] [Indexed: 11/13/2022] Open
Abstract
The modification of histones—the structural components of chromatin—is a central topic in research efforts to understand the mechanisms regulating genome expression and stability. These modifications frequently occur through associations with multisubunit complexes, which contain active enzymes and additional components that orient their specificity and read the histone modifications that comprise epigenetic signatures. To understand the functions of these modifications it is critical to study the enzymes and substrates involved in their native contexts. Here, we describe experimental approaches to purify native chromatin modifiers complexes from mammalian cells and to produce recombinant nucleosomes that are used as substrates to determine the activity of the complex. In addition, we present a novel approach, similar to the yeast anchor-away system, to study the functions of essential chromatin modifiers by quickly inducing their depletion from the nucleus. The step-by-step protocols included will help standardize these approaches in the research community, enabling convincing conclusions about the specificities and functions of these crucial regulators of the eukaryotic genome.
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Affiliation(s)
- Maxime Galloy
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
| | - Catherine Lachance
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
| | - Xue Cheng
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
| | - Félix Distéfano-Gagné
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
| | - Jacques Côté
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
| | - Amelie Fradet-Turcotte
- St-Patrick Research Group in Basic Oncology, Oncology Division, Centre Hospitalier Universitaire (CHU) de Québec-Université Laval Research Center, Québec, QC, Canada.,Department of Molecular Biology, Medical Biochemistry and Pathology, Laval University Cancer Research Center, Université Laval, Québec, QC, Canada
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9
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Abstract
Epigenetics examines heritable changes in DNA and its associated proteins except mutations in gene sequence. Epigenetic regulation plays fundamental roles in kidney cell biology through the action of DNA methylation, chromatin modification via epigenetic regulators and non-coding RNA species. Kidney diseases, including acute kidney injury, chronic kidney disease, diabetic kidney disease and renal fibrosis are multistep processes associated with numerous molecular alterations even in individual kidney cells. Epigenetic alterations, including anomalous DNA methylation, aberrant histone alterations and changes of microRNA expression all contribute to kidney pathogenesis. These changes alter the genome-wide epigenetic signatures and disrupt essential pathways that protect renal cells from uncontrolled growth, apoptosis and development of other renal associated syndromes. Molecular changes impact cellular function within kidney cells and its microenvironment to drive and maintain disease phenotype. In this chapter, we briefly summarize epigenetic mechanisms in four kidney diseases including acute kidney injury, chronic kidney disease, diabetic kidney disease and renal fibrosis. We primarily focus on current knowledge about the genome-wide profiling of DNA methylation and histone modification, and epigenetic regulation on specific gene(s) in the pathophysiology of these diseases and the translational potential of identifying new biomarkers and treatment for prevention and therapy. Incorporating epigenomic testing into clinical research is essential to elucidate novel epigenetic biomarkers and develop precision medicine using emerging therapies.
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10
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Tian X, Hu Y, Liu Y, Yang Z, Xie H, Zhou L, Zheng S. Circular RNA Microarray Analyses in Hepatic Ischemia-Reperfusion Injury With Ischemic Preconditioning Prevention. Front Med (Lausanne) 2021; 8:626948. [PMID: 33763433 PMCID: PMC7982475 DOI: 10.3389/fmed.2021.626948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 01/25/2021] [Indexed: 12/12/2022] Open
Abstract
Ischemic preconditioning (IPC) represents an effective intervention to relieve hepatic ischemia-reperfusion injury (IRI). Systematic detection of circRNA expression revealing the protection effect of IPC still remains to be elucidated. Here, we applied a microarray to detect circRNA and mRNA expression in ischemic liver with and without IPC (n = 3 in each group). Compared with the sham group, there were 39 circRNAs and 432 mRNAs increased and 38 circRNAs and 254 mRNAs decreased (fold change ≥1.5, P < 0.05) in the group of hepatic IRI. As the result of IPC intervention, 43 circRNAs and 64 mRNAs were increased, and 7 circRNAs and 31 mRNAs were decreased in the IPC group when compared with IRI. We then identified circRNA_017753 as the most possible target that may closely relate to IPC protective signaling and predicted Jade1 as the target related to circRNA_017753. Three possible circRNA-miRNA-mRNA axes were constructed that may play a vital role in protective mechanisms in IPC. The study for the first time systematically detects the dysregulated circRNAs and mRNAs in response to hepatic IRI and IPC intervention. Our profile and bioinformatic analysis provide numerous novel clues to understanding the pathophysiologic mechanism of IPC protection against hepatic IRI.
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Affiliation(s)
- Xinyao Tian
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Combined Multi-organ Transplantation, National Health Commission of PRC, Hangzhou, China
| | - Yan Hu
- Department of Pharmacy, Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Yuanxing Liu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Zhe Yang
- Department of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan (Hangzhou) Hospital, Hangzhou, China
| | - Haiyang Xie
- Key Laboratory of Combined Multi-organ Transplantation, National Health Commission of PRC, Hangzhou, China
| | - Lin Zhou
- Key Laboratory of Combined Multi-organ Transplantation, National Health Commission of PRC, Hangzhou, China
| | - Shusen Zheng
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Key Laboratory of Combined Multi-organ Transplantation, National Health Commission of PRC, Hangzhou, China.,Department of Hepatobiliary and Pancreatic Surgery, Department of Liver Transplantation, Shulan (Hangzhou) Hospital, Hangzhou, China
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11
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Yoshioka H, Ramakrishnan SS, Shim J, Suzuki A, Iwata J. Excessive All-Trans Retinoic Acid Inhibits Cell Proliferation Through Upregulated MicroRNA-4680-3p in Cultured Human Palate Cells. Front Cell Dev Biol 2021; 9:618876. [PMID: 33585479 PMCID: PMC7876327 DOI: 10.3389/fcell.2021.618876] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2020] [Accepted: 01/05/2021] [Indexed: 01/19/2023] Open
Abstract
Cleft palate is the second most common congenital birth defect, and both environmental and genetic factors are involved in the etiology of the disease. However, it remains largely unknown how environmental factors affect palate development. Our previous studies show that several microRNAs (miRs) suppress the expression of genes involved in cleft palate. Here we show that miR-4680-3p plays a crucial role in cleft palate pathogenesis. We found that all-trans retinoic acid (atRA) specifically induces miR-4680-3p in cultured human embryonic palatal mesenchymal (HEPM) cells. Overexpression of miR-4680-3p inhibited cell proliferation in a dose-dependent manner through the suppression of expression of ERBB2 and JADE1, which are known cleft palate-related genes. Importantly, a miR-4680-3p-specific inhibitor normalized cell proliferation and altered expression of ERBB2 and JADE1 in cells treated with atRA. Taken together, our results suggest that upregulation of miR-4680-3p induced by atRA may cause cleft palate through suppression of ERBB2 and JADE1. Thus, miRs may be potential targets for the prevention and diagnosis of cleft palate.
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Affiliation(s)
- Hiroki Yoshioka
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Sai Shankar Ramakrishnan
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Junbo Shim
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Akiko Suzuki
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Junichi Iwata
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States.,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
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12
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Al-Awaida WJ, Hameed WS, Al Hassany HJ, Al-Dabet MM, Al-Bawareed O, Hadi NR. Evaluation of the Genetic Association and Expressions of Notch-2 /Jagged-1 in Patients with Type 2 Diabetes Mellitus. Med Arch 2021; 75:101-108. [PMID: 34219868 PMCID: PMC8228649 DOI: 10.5455/medarh.2021.75.101-108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Background Diabetes mellitus (DM) is the world's most common cause of chronic kidney diseases (CKD), with approximately 1 in 4 adults with DM having CKD and 1 out of 10 to 20% of DM patients die from CKD. Objective The current study aims to investigate the correlation between Notch-2 and Jag-1expressions and specific inflammation biomarkers IL-1β and IL-6 with different stages of diabetic nephropathy. Methods From August 2018 to January 2019, three hundred subjects were recruited for this study. One hundred and fifty subjects were healthy and age-matched to the diabetic group and selected as a control group. Another 150 patients with an established diagnosis of type 2 diabetes (T2DM) according to the criteria of the American Diabetes Association (ADA) were also recruited. Blood specimens were eventually used to identify the expressions Notch-2 and Jagged-1 and the levels of inflammatory biomarkers IL-1β and IL-6. Result The current study shows a significant increase in gene expression and inflammatory biomarkers in patients with moderate and severe diabetic nephropathy compared to the control group. However, there was no significant difference between healthy control and mild diabetic nephropathy patients. This study shows a close association between the increase in the levels of inflammatory biomarkers IL-1β and IL-6 as well as the gene expressions levels of both Notch-2 and Jag-1 with human diabetic nephropathy. Conclusion According to our findings, we emphasize the use of Notch-2 and Jag-1 expressions and IL-1β and IL-6 levels as potential biomarkers for different stages of diabetic nephropathy.
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Affiliation(s)
- Wajdy J Al-Awaida
- Department of Biology and Biotechnology, American University of Madaba, Madaba, Jordan
| | - Wasan S Hameed
- Department of Microbiology, Faculty of Medicine, University of Kufa, Kufa, Iraq
| | - Haider J Al Hassany
- Department of Microbiology, Faculty of Medicine, University of Kufa, Kufa, Iraq
| | | | - Omar Al-Bawareed
- Department of normal physiology, RUDN University, Moscow, Russia
| | - Najah R Hadi
- Department of Pharmacology and Therapeutics,Faculty of Medicine, University of Kufa, Kufa, Iraq
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13
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Yoshioka H, Mikami Y, Ramakrishnan SS, Suzuki A, Iwata J. MicroRNA-124-3p Plays a Crucial Role in Cleft Palate Induced by Retinoic Acid. Front Cell Dev Biol 2021; 9:621045. [PMID: 34178974 PMCID: PMC8219963 DOI: 10.3389/fcell.2021.621045] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 05/05/2021] [Indexed: 01/13/2023] Open
Abstract
Cleft lip with/without cleft palate (CL/P) is one of the most common congenital birth defects, showing the complexity of both genetic and environmental contributions [e.g., maternal exposure to alcohol, cigarette, and retinoic acid (RA)] in humans. Recent studies suggest that epigenetic factors, including microRNAs (miRs), are altered by various environmental factors. In this study, to investigate whether and how miRs are involved in cleft palate (CP) induced by excessive intake of all-trans RA (atRA), we evaluated top 10 candidate miRs, which were selected through our bioinformatic analyses, in mouse embryonic palatal mesenchymal (MEPM) cells as well as in mouse embryos treated with atRA. Among them, overexpression of miR-27a-3p, miR-27b-3p, and miR-124-3p resulted in the significant reduction of cell proliferation in MEPM cells through the downregulation of CP-associated genes. Notably, we found that excessive atRA upregulated the expression of miR-124-3p, but not of miR-27a-3p and miR-27b-3p, in both in vivo and in vitro. Importantly, treatment with a specific inhibitor for miR-124-3p restored decreased cell proliferation through the normalization of target gene expression in atRA-treated MEPM cells and atRA-exposed mouse embryos, resulting in the rescue of CP in mice. Taken together, our results indicate that atRA causes CP through the induction of miR-124-3p in mice.
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Affiliation(s)
- Hiroki Yoshioka
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Yurie Mikami
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Sai Shankar Ramakrishnan
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Akiko Suzuki
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States
| | - Junichi Iwata
- Department of Diagnostic and Biomedical Sciences, School of Dentistry, The University of Texas Health Science Center at Houston, Houston, TX, United States.,Center for Craniofacial Research, The University of Texas Health Science Center at Houston, Houston, TX, United States.,MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, TX, United States
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14
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Lan R, Wang Q. Deciphering structure, function and mechanism of lysine acetyltransferase HBO1 in protein acetylation, transcription regulation, DNA replication and its oncogenic properties in cancer. Cell Mol Life Sci 2020; 77:637-649. [PMID: 31535175 PMCID: PMC11104888 DOI: 10.1007/s00018-019-03296-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 12/19/2022]
Abstract
HBO1 complexes are major acetyltransferase responsible for histone H4 acetylation in vivo, which belongs to the MYST family. As the core catalytic subunit, HBO1 consists of an N-terminal domain and a C-terminal MYST domain that are in charge of acetyl-CoA binding and acetylation reaction. HBO1 complexes are multimeric and normally consist of two native subunits MEAF6, ING4 or ING5 and two kinds of cofactors as chromatin reader: Jade-1/2/3 and BRPF1/2/3. The choices of subunits to form the HBO1 complexes provide a regulatory switch to potentiate its activity between histone H4 and H3 tails. Thus, HBO1 complexes present multiple functions in histone acetylation, gene transcription, DNA replication, protein ubiquitination, and immune regulation, etc. HBO1 is a co-activator for CDT1 to facilitate chromatin loading of MCM complexes and promotes DNA replication licensing. This process is regulated by mitotic kinases such as CDK1 and PLK1 by phosphorylating HBO1 and modulating its acetyltransferase activity, therefore, connecting histone acetylation to regulations of cell cycle and DNA replication. In addition, both gene amplification and protein overexpression of HBO1 confirmed its oncogenic role in cancers. In this paper, we review the recent advances and discuss our understanding of the multiple functions, activity regulation, and disease relationship of HBO1.
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Affiliation(s)
- Rongfeng Lan
- Department of Cell Biology and Medical Genetics, School of Basic Medical Sciences, Shenzhen University Health Science Center, Shenzhen, 518060, China.
| | - Qianqian Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Lifeomics, National Center for Protein Sciences (The PHOENIX Center, Beijing), Beijing, 102206, China
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15
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Ogbadu J, Singh G, Aggarwal D. Factors affecting the transition of acute kidney injury to chronic kidney disease: Potential mechanisms and future perspectives. Eur J Pharmacol 2019; 865:172711. [DOI: 10.1016/j.ejphar.2019.172711] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 09/22/2019] [Accepted: 09/30/2019] [Indexed: 12/12/2022]
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16
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Guo C, Dong G, Liang X, Dong Z. Epigenetic regulation in AKI and kidney repair: mechanisms and therapeutic implications. Nat Rev Nephrol 2019; 15:220-239. [PMID: 30651611 PMCID: PMC7866490 DOI: 10.1038/s41581-018-0103-6] [Citation(s) in RCA: 127] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acute kidney injury (AKI) is a major public health concern associated with high morbidity and mortality. Despite decades of research, the pathogenesis of AKI remains incompletely understood and effective therapies are lacking. An increasing body of evidence suggests a role for epigenetic regulation in the process of AKI and kidney repair, involving remarkable changes in histone modifications, DNA methylation and the expression of various non-coding RNAs. For instance, increases in levels of histone acetylation seem to protect kidneys from AKI and promote kidney repair. AKI is also associated with changes in genome-wide and gene-specific DNA methylation; however, the role and regulation of DNA methylation in kidney injury and repair remains largely elusive. MicroRNAs have been studied quite extensively in AKI, and a plethora of specific microRNAs have been implicated in the pathogenesis of AKI. Emerging research suggests potential for microRNAs as novel diagnostic biomarkers of AKI. Further investigation into these epigenetic mechanisms will not only generate novel insights into the mechanisms of AKI and kidney repair but also might lead to new strategies for the diagnosis and therapy of this disease.
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Affiliation(s)
- Chunyuan Guo
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Guie Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, GA, USA
| | - Xinling Liang
- Division of Nephrology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangdong Geriatrics Institute, Guangzhou, China
| | - Zheng Dong
- Department of Cellular Biology and Anatomy, Medical College of Georgia, Augusta University and Charlie Norwood VA Medical Center, Augusta, GA, USA.
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17
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Tajima T, Yoshifuji A, Matsui A, Itoh T, Uchiyama K, Kanda T, Tokuyama H, Wakino S, Itoh H. β-hydroxybutyrate attenuates renal ischemia-reperfusion injury through its anti-pyroptotic effects. Kidney Int 2019; 95:1120-1137. [PMID: 30826015 DOI: 10.1016/j.kint.2018.11.034] [Citation(s) in RCA: 100] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 11/16/2018] [Accepted: 11/21/2018] [Indexed: 01/05/2023]
Abstract
Ketone bodies including β-hydroxybutyrate (β-OHB) have been shown to protect against ischemic tissue injury when present at low concentrations. We evaluated the impact of β-OHB on renal ischemia/reperfusion injury (IRI). Mice were treated with a continuous infusion of β-OHB using an osmotic mini-pump before and after IRI. We also tested the effects of increasing endogenous serum β-OHB levels by fasting. Renal IRI was attenuated by β-OHB treatment compared to saline control, with similar results in the fasting condition. β-OHB treatment reduced the number of terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling (TUNEL)-positive cells and increased expression of forkhead transcription factor O3 (FOXO3), an upstream regulator of pyroptosis. Although β-OHB treatment did not impact markers of apoptosis, it decreased the expression of caspase-1 and proinflammatory cytokines, indicating that β-OHB blocked pyroptosis. In a human proximal tubular cell line exposed to hypoxia and reoxygenation, β-OHB reduced cell death in a FOXO3-dependent fashion. Histone acetylation was decreased in kidneys exposed to IRI and in proximal tubular cells exposed to hypoxia and reoxygenation, and this effect was ameliorated by β-OHB through the inactivation of histone deacetylases. In vitro, β-OHB treatment restored histone acetylation at the FOXO3 promoter. Consistent with epigenetic molecular effects, the renoprotective effects of β-OHB were still observed when the continuous infusion was stopped at the time of IRI. Thus, β-OHB attenuates renal IRI through anti-pyroptotic effects, likely mediated by an epigenetic effect on FOXO3 expression.
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Affiliation(s)
- Takaya Tajima
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Ayumi Yoshifuji
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Ayumi Matsui
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Tomoaki Itoh
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Kiyotaka Uchiyama
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Takeshi Kanda
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Hirobumi Tokuyama
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
| | - Shu Wakino
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan.
| | - Hiroshi Itoh
- Department of Internal Medicine, School of Medicine, Keio University, Tokyo, Japan
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18
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Tang J, Zhuang S. Histone acetylation and DNA methylation in ischemia/reperfusion injury. Clin Sci (Lond) 2019; 133:597-609. [PMID: 30804072 PMCID: PMC7470454 DOI: 10.1042/cs20180465] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 01/25/2019] [Accepted: 02/11/2019] [Indexed: 12/17/2022]
Abstract
Ischemic/reperfusion (I/R) injury causes a series of serious clinical problems associated with high morbidity and mortality in various disorders, such as acute kidney injury (AKI), myocardial infarction, ischemic stroke, circulatory arrest, and peripheral vascular disease. The pathophysiology and pathogenesis of I/R injury is complex and multifactorial. Recent studies have revealed that epigenetic regulation is critically involved in the pathogenesis of I/R-induced tissue injury. In this review, we will sum up recent advances on the modification, regulation, and implication of histone modifications and DNA methylation in I/R injury-induced organ dysfunction. Understandings of I/R-induced epigenetic alterations and regulations will aid in the development of potential therapeutics.
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Affiliation(s)
- Jinhua Tang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, RI, U.S.A
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19
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Ali I, Conrad RJ, Verdin E, Ott M. Lysine Acetylation Goes Global: From Epigenetics to Metabolism and Therapeutics. Chem Rev 2018; 118:1216-1252. [PMID: 29405707 PMCID: PMC6609103 DOI: 10.1021/acs.chemrev.7b00181] [Citation(s) in RCA: 222] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Post-translational acetylation of lysine residues has emerged as a key regulatory mechanism in all eukaryotic organisms. Originally discovered in 1963 as a unique modification of histones, acetylation marks are now found on thousands of nonhistone proteins located in virtually every cellular compartment. Here we summarize key findings in the field of protein acetylation over the past 20 years with a focus on recent discoveries in nuclear, cytoplasmic, and mitochondrial compartments. Collectively, these findings have elevated protein acetylation as a major post-translational modification, underscoring its physiological relevance in gene regulation, cell signaling, metabolism, and disease.
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Affiliation(s)
- Ibraheem Ali
- Gladstone Institute of Virology and Immunology, San Francisco, California 94158, United States
- University of California, San Francisco, Department of Medicine, San Francisco, California 94158, United States
| | - Ryan J. Conrad
- Gladstone Institute of Virology and Immunology, San Francisco, California 94158, United States
- University of California, San Francisco, Department of Medicine, San Francisco, California 94158, United States
| | - Eric Verdin
- Buck Institute for Research on Aging, Novato, California 94945, United States
| | - Melanie Ott
- Gladstone Institute of Virology and Immunology, San Francisco, California 94158, United States
- University of California, San Francisco, Department of Medicine, San Francisco, California 94158, United States
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20
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Han J, Lachance C, Ricketts MD, McCullough CE, Gerace M, Black BE, Côté J, Marmorstein R. The scaffolding protein JADE1 physically links the acetyltransferase subunit HBO1 with its histone H3-H4 substrate. J Biol Chem 2018; 293:4498-4509. [PMID: 29382722 DOI: 10.1074/jbc.ra117.000677] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/23/2018] [Indexed: 12/31/2022] Open
Abstract
The human enzyme histone acetyltransferase binding to ORC1 (HBO1) regulates DNA replication, cell proliferation, and development. HBO1 is part of a multiprotein histone acetyltransferase (HAT) complex that also contains inhibitor of growth family member (ING) 4/5, MYST/Esa1-associated factor (MEAF) 6, and the scaffolding proteins Jade family PHD finger (JADE) 1/2/3 or bromodomain and PHD finger-containing protein (BRPF) 2/3 to acetylate histone H4 H4K5/8/12 or H3K14, respectively. Within this four-protein complex, JADE1 determines histone H4 substrate specificity of the HBO1-HAT complex. However, the mechanism by which JADE1 controls the H4-specific acetyltransferase activity of HBO1 is unknown. Here we used recombinant proteins in vitro to dissect the specific regions and activities of HBO1 and JADE1 that mediate histone H3-H4 acetylation via the HBO1-HAT domain. We found that JADE1 increases the catalytic efficiency of HBO1 acetylation of an H3-H4 substrate by about 5-fold through an N-terminal, 21-residue HBO1- and histone-binding domain and a nearby second histone core-binding domain. We also demonstrate that HBO1 contains an N-terminal histone-binding domain (HBD) that makes additional contacts with H3-H4 independent of JADE1 interactions with histones and that the HBO1 HBD does not significantly contribute to HBO1's overall HAT activity. Experiments with JADE1 deletions in vivo recapitulated these in vitro interactions and their roles in HBO1 histone acetylation activity. Together, these results indicate that the N-terminal region of JADE1 functions as a platform that brings together the catalytic HBO1 subunit with its cognate H3-H4 substrate for histone acetylation.
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Affiliation(s)
- Joseph Han
- From the Department of Biochemistry and Biophysics.,Abramson Family Cancer Research Institute, and.,Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, and
| | - Catherine Lachance
- the Laval University Cancer Research Center, CHU de Québec Research Center-Oncology Axis, Quebec City, Quebec G1R 3S3, Canada
| | - M Daniel Ricketts
- From the Department of Biochemistry and Biophysics.,Abramson Family Cancer Research Institute, and.,Graduate Group in Biochemistry and Molecular Biophysics, Perelman School of Medicine, and
| | - Cheryl E McCullough
- From the Department of Biochemistry and Biophysics.,Abramson Family Cancer Research Institute, and.,Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, and
| | | | - Ben E Black
- From the Department of Biochemistry and Biophysics
| | - Jacques Côté
- the Laval University Cancer Research Center, CHU de Québec Research Center-Oncology Axis, Quebec City, Quebec G1R 3S3, Canada
| | - Ronen Marmorstein
- From the Department of Biochemistry and Biophysics, .,Abramson Family Cancer Research Institute, and.,Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, and
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21
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Zhao Y, Ding C, Xue W, Ding X, Zheng J, Gao Y, Xia X, Li S, Liu J, Han F, Zhu F, Tian P. Genome-wide DNA methylation analysis in renal ischemia reperfusion injury. Gene 2017; 610:32-43. [PMID: 28189760 DOI: 10.1016/j.gene.2017.02.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 12/19/2016] [Accepted: 02/06/2017] [Indexed: 10/20/2022]
Abstract
Renal ischemia reperfusion injury (IRI) is frequently encountered after kidney transplantation and is a leading cause of acute renal failure. Aberrant gene expression and epigenetic regulation occur during the pathophysiology of IRI. In this study, we used reduced representation bisulfite sequencing to identify the DNA methylome of renal tissues during IRI and the sham-operated tissues in C57BL/6. The methylation status of approximately 1.29 million CpGs located in an average of 11554 CpG islands and 17113 promoters in genome was determined. Compared with sham-operated kidney, both acute and chronic IRI significantly decreased the genome-wide methylation level (1.1-1.8%) and the CpG methylation level in the promoter (0.4-0.5%), CpG island (0.5-1.3%), exon (1.3-1.9%), and intron (0.8-1.1%; all P<10-153). The promoters of 200, 191, and 79 genes were differentially methylated in the renal tissues at 24h, 7days, and at both the time points after IRI, respectively. Among the 79 genes, which were consistently epigenetically regulated at two time points, 18 genes (22.8%) showed differential expression after IRI in a previous study of renal expression. We validated the promoter methylation status and expression of five out of the 18 genes, including 2700049A03Rik, Ccr9, Fgd2, Pfkfb3, and Sdc4 in an independent renal tissue cohort. We found that all the five genes exhibited altered methylation of promoter (P=0.009-0.0001) following renal injury. The promoter methylation of 2700049A03Rik and Ccr9 was negatively correlated with their mRNA expression in renal tissues (P<0.001 and P<0.0001, respectively). Our study not only demonstrated a genome-wide DNA methylation pattern in the IR-injured renal tissue for the first time, but also indicated that the regulation of promoter methylation is an important mechanism underlying persistent alteration of gene expression.
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Affiliation(s)
- Yanlong Zhao
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Chenguang Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Wujun Xue
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Xiaoming Ding
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Jin Zheng
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Yi Gao
- Department of Nephrology, Affiliated Xi'an Central Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, PR China
| | - Xinxin Xia
- Department of Traditional Chinese Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Sutong Li
- Department of Nephrology, Affiliated Xi'an Central Hospital of Medical College of Xi'an Jiaotong University, Xi'an, Shaanxi 710003, PR China
| | - Jing Liu
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Feng Han
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China
| | - Feng Zhu
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China.
| | - Puxun Tian
- Department of Kidney Transplantation, Hospital of Nephropathy, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, PR China.
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22
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Panchenko MV. Structure, function and regulation of jade family PHD finger 1 (JADE1). Gene 2016; 589:1-11. [PMID: 27155521 DOI: 10.1016/j.gene.2016.05.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 04/28/2016] [Accepted: 05/01/2016] [Indexed: 12/24/2022]
Abstract
The family of JADE proteins includes three paralogues encoded by individual genes and designated PHF17 (JADE1), PHF16 (JADE2), and PHF15 (JADE3). All three JADE proteins bear in tandem two Plant Homeo-domains (PHD) which are zinc finger domains. This review focuses on one member of the JADE family, JADE1. Studies addressing the biochemical, cellular and biological role of JADE1 are discussed. Recent discoveries of JADE1 function in the regulation of the epithelial cell cycle with potential relevance to disease are presented. Unresolved questions and future directions are formulated.
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Affiliation(s)
- Maria V Panchenko
- Department of Pathology and Laboratory Medicine, Boston University School of Medicine, United States.
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23
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Abstract
PURPOSE OF REVIEW Recent advances in epigenetics indicate the involvement of several epigenetic modifications in the pathogenesis of acute kidney injury (AKI). The purpose of this review is to summarize our understanding of recent advances in the epigenetic regulation of AKI and provide mechanistic insight into the role of acetylation, methylation, and microRNA expression in the pathological processes of AKI. RECENT FINDINGS Enhancement of protein acetylation by pharmacological inhibition of histone deacetylases leads to more severe tubular injury and impairment of renal structural and functional recovery. The changes in promoter DNA methylation occur in the kidney with ischemia/reperfusion. microRNA expression is associated with regulation of both renal injury and regeneration after AKI. SUMMARY Recent studies on epigenetic regulation indicate that acetylation, methylation, and microRNA expression are critically implicated in the pathogenesis of AKI. Strategies targeting epigenetic processes may hold a therapeutic potential for patients with AKI.
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24
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Borgal L, Rinschen MM, Dafinger C, Liebrecht VI, Abken H, Benzing T, Schermer B. Jade-1S phosphorylation induced by CK1α contributes to cell cycle progression. Cell Cycle 2016; 15:1034-45. [PMID: 26919559 PMCID: PMC4889251 DOI: 10.1080/15384101.2016.1152429] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Accepted: 02/04/2016] [Indexed: 12/13/2022] Open
Abstract
The PHD zinc finger protein Jade-1S is a component of the HBO1 histone acetyltransferase complex and binds chromatin in a cell cycle-dependent manner. Jade-1S also acts as an E3 ubiquitin ligase for the canonical Wnt effector protein β-catenin and is influenced by CK1α-mediated phosphorylation. To further elucidate the functional impact of this phosphorylation, we used a stable, low-level expression system to express either wild-type or mutant Jade-1S lacking the N-terminal CK1α phosphorylation motif. Interactome analyses revealed that the Jade-1S mutant unable to be phosphorylated by CK1α has an increased binding affinity to proteins involved in chromatin remodelling, histone deacetylation, transcriptional repression, and ribosome biogenesis. Interestingly, cells expressing the mutant displayed an elongated cell shape and a delay in cell cycle progression. Finally, phosphoproteomic analyses allowed identification of a Jade-1S site phosphorylated in the presence of CK1α but closely resembling a PLK1 phosphorylation motif. Our data suggest that Jade-1S phosphorylation at an N-terminal CK1α motif creates a PLK1 phospho-binding domain. We propose CK1α phosphorylation of Jade 1S to serve as a molecular switch, turning off chromatin remodelling functions of Jade-1S and allowing timely cell cycle progression. As Jade-1S protein expression in the kidney is altered upon renal injury, this could contribute to understanding mechanisms underlying epithelial injury repair.
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Affiliation(s)
- Lori Borgal
- Department II of Internal Medicine; University of Cologne; Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
| | - Markus M. Rinschen
- Department II of Internal Medicine; University of Cologne; Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne; Cologne, Germany
| | - Claudia Dafinger
- Department II of Internal Medicine; University of Cologne; Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
| | - Valérie I. Liebrecht
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
- Department I of Internal Medicine; University of Cologne; Cologne, Germany
| | - Hinrich Abken
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
- Department I of Internal Medicine; University of Cologne; Cologne, Germany
| | - Thomas Benzing
- Department II of Internal Medicine; University of Cologne; Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne; Cologne, Germany
- Systems Biology of Ageing Cologne; University of Cologne; Cologne, Germany
| | - Bernhard Schermer
- Department II of Internal Medicine; University of Cologne; Cologne, Germany
- Center for Molecular Medicine Cologne (CMMC); University of Cologne; Cologne, Germany
- Cologne Excellence Cluster on Cellular Stress Responses in Aging-Associated Diseases (CECAD), University of Cologne; Cologne, Germany
- Systems Biology of Ageing Cologne; University of Cologne; Cologne, Germany
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Siriwardana NS, Meyer RD, Panchenko MV. The novel function of JADE1S in cytokinesis of epithelial cells. Cell Cycle 2015; 14:2821-34. [PMID: 26151225 DOI: 10.1080/15384101.2015.1068476] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
JADE1 belongs to a small family of PHD zinc finger proteins that interacts with histone acetyl transferase (HAT) HBO1 and is associated with chromatin. We recently reported JADE1 chromatin shuttling and phosphorylation during G2/M to G1 transition, which was sensitive to Aurora A inhibition. In the current study we examined mechanisms of the cell cycle regulation by the small isoform of JADE1 protein, JADE1S, and report data showing that JADE1S has a novel function in the regulation of cytokinesis. Using FACS assays, we show that, JADE1S depletion facilitated rates of G1-cells accumulation in synchronously dividing HeLa cell cultures. Depletion of JADE1S protein in asynchronously dividing cells decreased the proportion of cytokinetic cells, and increased the proportion of multi-nuclear cells, indicative of premature and failed cytokinesis. In contrast, moderate overexpression of JADE1S increased the number of cytokinetic cells in time- and dose- dependent manner, indicating cytokinetic delay. Pharmacological inhibition of Aurora B kinase resulted in the release of JADE1S-mediated cytokinetic delay and allowed progression of abscission in cells over-expressing JADE1S. Finally, we show that JADE1S protein localized to centrosomes in interphase and mitotic cells, while during cytokinesis JADE1S localized to the midbody. Neither JADE1L nor partner of JADE1, HAT HBO1 was localized to the centrosomes or midbodies. Our study identifies the novel role for JADE1S in regulation of cytokinesis and suggests function in Aurora B kinase-mediated cytokinesis checkpoint.
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26
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Recent developments in epigenetics of acute and chronic kidney diseases. Kidney Int 2015; 88:250-61. [PMID: 25993323 PMCID: PMC4522401 DOI: 10.1038/ki.2015.148] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/22/2015] [Accepted: 03/30/2015] [Indexed: 12/25/2022]
Abstract
The growing epidemic of obesity and diabetes, the aging population as well as prevalence of drug abuse has led to significant increases in the rates of the closely associated acute and chronic kidney diseases, including diabetic nephropathy. Furthermore, evidence shows that parental behavior and diet can affect the phenotype of subsequent generations via epigenetic transmission mechanisms. These data suggest a strong influence of the environment on disease susceptibility and that, apart from genetic susceptibility, epigenetic mechanisms need to be evaluated to gain critical new information about kidney diseases. Epigenetics is the study of processes that control gene expression and phenotype without alterations in the underlying DNA sequence. Epigenetic modifications, including cytosine DNA methylation and covalent post translational modifications of histones in chromatin are part of the epigenome, the interface between the stable genome and the variable environment. This dynamic epigenetic layer responds to external environmental cues to influence the expression of genes associated with disease states. The field of epigenetics has seen remarkable growth in the past few years with significant advances in basic biology, contributions to human disease, as well as epigenomics technologies. Further understanding of how the renal cell epigenome is altered by metabolic and other stimuli can yield novel new insights into the pathogenesis of kidney diseases. In this review, we have discussed the current knowledge on the role of epigenetic mechanisms (primarily DNA me and histone modifications) in acute and chronic kidney diseases, and their translational potential to identify much needed new therapies.
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Singh V, Singh LC, Singh AP, Sharma J, Borthakur BB, Debnath A, Rai AK, Phukan RK, Mahanta J, Kataki AC, Kapur S, Saxena S. Status of epigenetic chromatin modification enzymes and esophageal squamous cell carcinoma risk in northeast Indian population. Am J Cancer Res 2015; 5:979-999. [PMID: 26045981 PMCID: PMC4449430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Accepted: 02/10/2015] [Indexed: 06/04/2023] Open
Abstract
Esophageal cancer incidence is reported in high frequency in northeast India. The etiology is different from other population at India due to wide variations in dietary habits or nutritional factors, tobacco/betel quid chewing and alcohol habits. Since DNA methylation, histone modification and miRNA-mediated epigenetic processes alter the gene expression, the involvement of these processes might be useful to find out epigenetic markers of esophageal cancer risk in northeast Indian population. The present investigation was aimed to carryout differential expression profiling of chromatin modification enzymes in tumor and normal tissue collected from esophageal squamous cell carcinoma (ESCC) patients. Differential mRNA expression profiling and their validation was done by quantitative real time PCR and tissue microarray respectively. Univariate and multiple logistic regression analysis were used to analyze the epidemiological data. mRNA expression data was analyzed by Student t-test. Fisher exact test was used for tissue microarray data analysis. Higher expression of enzymes regulating methylation (DOT1L and PRMT1) and acetylation (KAT7, KAT8, KAT2A and KAT6A) of histone was found associated with ESCC risk. Tissue microarray done in independent cohort of 75 patients revealed higher nuclear protein expression of KAT8 and PRMT1 in tumor similar to mRNA expression. Expression status of PRMT1 and KAT8 was found declined as we move from low grade to high grade tumor. Betel nut chewing, alcohol drinking and dried fish intake were significantly associated with increased risk of esophageal cancer among the study subject. Study suggests the association of PRMT1 and KAT8 with esophageal cancer risk and its involvement in the transition process of low to high grade tumor formation. The study exposes the differential status of chromatin modification enzymes between tumor and normal tissue and points out that relaxed state of chromatin facilitates more transcriptionally active genome in esophageal carcinogenesis.
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Affiliation(s)
- Virendra Singh
- National Institute of Pathology (Indian Council of Medical Research)New Delhi-110029, India
| | - Laishram C Singh
- National Institute of Pathology (Indian Council of Medical Research)New Delhi-110029, India
| | - Avninder P Singh
- National Institute of Pathology (Indian Council of Medical Research)New Delhi-110029, India
| | | | | | | | - Avdhesh K Rai
- B Borooah Cancer Institute (BBCI)Guwahati-781016, Assam, India
| | - Rup K Phukan
- Regional Medical Research Centre (RMRC)Dibrugadh-786001, Assam, India
| | - Jagadish Mahanta
- Regional Medical Research Centre (RMRC)Dibrugadh-786001, Assam, India
| | - Amal C Kataki
- B Borooah Cancer Institute (BBCI)Guwahati-781016, Assam, India
| | - Sujala Kapur
- National Institute of Pathology (Indian Council of Medical Research)New Delhi-110029, India
| | - Sunita Saxena
- National Institute of Pathology (Indian Council of Medical Research)New Delhi-110029, India
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Gall JM, Wang Z, Bonegio RG, Havasi A, Liesa M, Vemula P, Borkan SC. Conditional knockout of proximal tubule mitofusin 2 accelerates recovery and improves survival after renal ischemia. J Am Soc Nephrol 2014; 26:1092-102. [PMID: 25201884 DOI: 10.1681/asn.2014010126] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Accepted: 07/13/2014] [Indexed: 01/23/2023] Open
Abstract
Proximal tubule (PT) cells are critical targets of acute ischemic injury. Elimination of the mitochondrial fusion protein mitofusin 2 (Mfn2) sensitizes PT cells to apoptosis in vitro. However, the role of PT Mfn2 in ischemic AKI in vivo is unknown. To test its role, we evaluated the effects of conditional KO of PT Mfn2 (cKO-PT-Mfn2) on animal survival after transient bilateral renal ischemia associated with severe AKI. Forty-eight hours after ischemia, 28% of control mice survived compared with 86% of cKO-PT-Mfn2 animals (P<0.001 versus control). Although no significant differences in histologic injury score, apoptosis, or necrosis were detected between genotypes, cKO-PT-Mfn2 kidneys exhibited a 3.5-fold increase in cell proliferation restricted to the intrarenal region with Mfn2 deletion. To identify the signals responsible for increased proliferation, primary PT cells with Mfn2 deficiency were subjected to stress by ATP depletion in vitro. Compared with normal Mfn2 expression, Mfn2 deficiency significantly increased PT cell proliferation and persistently activated extracellular signal-regulated kinase 1/2 (ERK1/2) during recovery from stress. Furthermore, stress and Mfn2 deficiency decreased the interaction between Mfn2 and Ras detected by immunoprecipitation, and purified Mfn2 dose-dependently decreased Ras activity in a cell-free assay. Ischemia in vivo also reduced the Mfn2-RAS interaction and increased both RAS and p-ERK1/2 activity in the renal cortical homogenates of cKO-PT-Mfn2 mice. Our results suggest that, in contrast to its proapoptotic effects in vitro, selective PT Mfn2 deficiency accelerates recovery of renal function and enhances animal survival after ischemic AKI in vivo, partly by increasing Ras-ERK-mediated cell proliferation.
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Affiliation(s)
| | | | | | | | - Marc Liesa
- The Obesity Center, Boston Medical Center, Boston, Massachusetts
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29
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Abstract
Histone modifiers like acetyltransferases, methyltransferases, and demethylases are critical regulators of most DNA-based nuclear processes, de facto controlling cell cycle progression and cell fate. These enzymes perform very precise post-translational modifications on specific histone residues, which in turn are recognized by different effector modules/proteins. We now have a better understanding of how these enzymes exhibit such specificity. As they often reside in multisubunit complexes, they use associated factors to target their substrates within chromatin structure and select specific histone mark-bearing nucleosomes. In this review, we cover the current understanding of how histone modifiers select their histone targets. We also explain how different experimental approaches can lead to conflicting results about the histone specificity and function of these enzymes.
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Affiliation(s)
- Marie-Eve Lalonde
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center, Centre de Recherche du CHU de Québec-Axe Oncologie, Hôtel-Dieu de Québec, Quebec City, Quebec G1R 2J6, Canada
| | - Xue Cheng
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center, Centre de Recherche du CHU de Québec-Axe Oncologie, Hôtel-Dieu de Québec, Quebec City, Quebec G1R 2J6, Canada
| | - Jacques Côté
- St-Patrick Research Group in Basic Oncology, Laval University Cancer Research Center, Centre de Recherche du CHU de Québec-Axe Oncologie, Hôtel-Dieu de Québec, Quebec City, Quebec G1R 2J6, Canada
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Abstract
Acute kidney injury (AKI) is a risk factor for chronic kidney disease and death. Despite progress made in understanding the cellular and molecular basis of AKI pathogenesis there has been no improvement in the high mortality rate from this disease in decades. Epigenetics is one of the most intensively studied fields of biology today and represents a new paradigm for understanding the pathophysiology of disease. Although epigenetics of AKI is a nascent field, the available information already is providing compelling evidence that chromatin biology plays a critical role in this disease. In this article we explore what is known about the contribution of epigenetic mechanisms to the pathophysiology of AKI and how this knowledge already is guiding the development of new diagnostic tools and epigenetic therapies.
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Siriwardana NS, Meyer R, Havasi A, Dominguez I, Panchenko MV. Cell cycle-dependent chromatin shuttling of HBO1-JADE1 histone acetyl transferase (HAT) complex. Cell Cycle 2014; 13:1885-901. [PMID: 24739512 PMCID: PMC4111752 DOI: 10.4161/cc.28759] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
HAT HBO1 interacts with 2 isoforms of JADE1: JADE1S and JADE1L. JADE1 promotes acetylation of nucleosomal histones by HBO1. HBO1–JADE1 complex facilitates cell proliferation by unclear mechanisms. Here we report intracellular chromatin shuttling of HBO1–JADE1 complex during mitosis coupled to phosphorylation of JADE1. In interphase of dividing cells JADE1S was localized to the nucleus and associated with chromatin. As cells approached mitosis, specifically prophase, JADE1S dissociated from chromatin and associated with cytoplasm. JADE1S chromatin re-association began in telophase and paralleled nuclear envelope membrane reassembly. By early G1, JADE1S was re-associated with chromatin and localized to the nucleus. Importantly, cytoplasmic but not chromatin-associated JADE1 protein was phosphorylated. Mass-Spectrometric analysis of JADE1S protein isolated from G2/M-arrested cells identified 6 phosphorylated amino acid residues: S89, T92, S102, S121, S392, and T468, including 3 novel sites. Temporally, JADE1S phosphorylation and dephosphorylation during mitosis correlated with JADE1S chromatin dissociation and recruitment. JADE1S chromatin recruitment was accompanied by the global histone H4 acetylation. Pharmacological inhibitor of Aurora A kinase prevented JADE1S protein band shift and chromatin dissociation, suggesting regulatory function for phosphorylation. In vivo experiments supported our in vitro results. In mouse kidneys, JADE1S transiently accumulated in the cytoplasm of tubular epithelial cells during kidney regeneration. The transient increase in the number of cells with cytoplasmic JADE1S directly correlated with activation of tubular cell proliferation and inversely correlated with the number of cells with nuclear JADE1S staining, supporting biological role of HBO1–JADE1 shuttling during organ regeneration.
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Affiliation(s)
| | - Rosana Meyer
- Department of Pathology; Boston University School of Medicine; Boston, MA USA
| | - Andrea Havasi
- Renal Section; Department of Medicine; Boston Medical Center; Boston, MA USA
| | - Isabel Dominguez
- Hematology-Oncology Section; Department of Medicine; Boston University School of Medicine; Boston, MA USA
| | - Maria V Panchenko
- Department of Pathology; Boston University School of Medicine; Boston, MA USA
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Iizuka M, Susa T, Takahashi Y, Tamamori-Adachi M, Kajitani T, Okinaga H, Fukusato T, Okazaki T. Histone acetyltransferase Hbo1 destabilizes estrogen receptor α by ubiquitination and modulates proliferation of breast cancers. Cancer Sci 2013; 104:1647-55. [PMID: 24125069 DOI: 10.1111/cas.12303] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 10/07/2013] [Accepted: 10/08/2013] [Indexed: 12/25/2022] Open
Abstract
The estrogen receptor (ER) is a key molecule for growth of breast cancers. It has been a successful target for treatment of breast cancers. Elucidation of the ER expression mechanism is of importance for designing therapeutics for ER-positive breast cancers. However, the detailed mechanism of ER stability is still unclear. Here, we report that histone acetyltransferase Hbo1 promotes destabilization of estrogen receptor α (ERα) in breast cancers through lysine 48-linked ubiquitination. The acetyltransferase activity of Hbo1 is linked to its activity for ERα ubiquitination. Depletion of Hbo1 and anti-estrogen treatment displayed a potent growth suppression of breast cancer cell line. Hbo1 modulated transcription by ERα. Mutually exclusive expression of Hbo1 and ERα was observed in roughly half of the human breast tumors examined in the present study. Modulation of ER stability by Hbo1 in breast cancers may provide a novel therapeutic possibility.
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Affiliation(s)
- Masayoshi Iizuka
- Department of Biochemistry, Teikyo University School of Medicine, Tokyo, Japan
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A novel non-coding RNA lncRNA-JADE connects DNA damage signalling to histone H4 acetylation. EMBO J 2013; 32:2833-47. [PMID: 24097061 DOI: 10.1038/emboj.2013.221] [Citation(s) in RCA: 102] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2013] [Accepted: 09/04/2013] [Indexed: 12/26/2022] Open
Abstract
A prompt and efficient DNA damage response (DDR) eliminates the detrimental effects of DNA lesions in eukaryotic cells. Basic and preclinical studies suggest that the DDR is one of the primary anti-cancer barriers during tumorigenesis. The DDR involves a complex network of processes that detect and repair DNA damage, in which long non-coding RNAs (lncRNAs), a new class of regulatory RNAs, may play an important role. In the current study, we identified a novel lncRNA, lncRNA-JADE, that is induced after DNA damage in an ataxia-telangiectasia mutated (ATM)-dependent manner. LncRNA-JADE transcriptionally activates Jade1, a key component in the HBO1 (human acetylase binding to ORC1) histone acetylation complex. Consequently, lncRNA-JADE induces histone H4 acetylation in the DDR. Markedly higher levels of lncRNA-JADE were observed in human breast tumours in comparison with normal breast tissues. Knockdown of lncRNA-JADE significantly inhibited breast tumour growth in vivo. On the basis of these results, we propose that lncRNA-JADE is a key functional link that connects the DDR to histone H4 acetylation, and that dysregulation of lncRNA-JADE may contribute to breast tumorigenesis.
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