201
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Choi S, Jeong HJ, Kim H, Choi D, Cho SC, Seong JK, Koo SH, Kang JS. Skeletal muscle-specific Prmt1 deletion causes muscle atrophy via deregulation of the PRMT6-FOXO3 axis. Autophagy 2019; 15:1069-1081. [PMID: 30653406 DOI: 10.1080/15548627.2019.1569931] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Protein arginine methyltransferases (PRMTs) have emerged as important regulators of skeletal muscle metabolism and regeneration. However, the direct roles of the various PRMTs during skeletal muscle remodeling remain unclear. Using skeletal muscle-specific prmt1 knockout mice, we examined the function and downstream targets of PRMT1 in muscle homeostasis. We found that muscle-specific PRMT1 deficiency led to muscle atrophy. PRMT1-deficient muscles exhibited enhanced expression of a macroautophagic/autophagic marker LC3-II, FOXO3 and muscle-specific ubiquitin ligases, TRIM63/MURF-1 and FBXO32, likely contributing to muscle atrophy. The mechanistic study reveals that PRMT1 regulates FOXO3 through PRMT6 modulation. In the absence of PRMT1, increased PRMT6 specifically methylates FOXO3 at arginine 188 and 249, leading to its activation. Finally, we demonstrate that PRMT1 deficiency triggers FOXO3 hyperactivation, which is abrogated by PRMT6 depletion. Taken together, PRMT1 is a key regulator for the PRMT6-FOXO3 axis in the control of autophagy and protein degradation underlying muscle maintenance. Abbreviations: Ad-RNAi: adenovirus-delivered small interfering RNA; AKT: thymoma viral proto-oncogene; AMPK: AMP-activated protein kinase; Baf A1: bafilomycin A1; CSA: cross-sectional area; EDL: extensor digitorum longus; FBXO32: F-box protein 32; FOXO: forkhead box O; GAS: gatrocnemieus; HDAC: histone deacetylase; IGF: insulin-like growth factor; LAMP: lysosomal-associated membrane protein; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; mKO: Mice with skeletal muscle-specific deletion of Prmt1; MTOR: mechanistic target of rapamycin kinase; MYH: myosin heavy chain; MYL1/MLC1f: myosin, light polypeptide 1; PRMT: protein arginine N-methyltransferase; sgRNA: single guide RNA; SQSTM1: sequestosome 1; SOL: soleus; TA: tibialis anterior; TRIM63/MURF-1: tripartite motif-containing 63; YY1: YY1 transcription factor.
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Affiliation(s)
- Seri Choi
- a Division of Life Sciences , Korea University , Seoul , South Korea
| | - Hyeon-Ju Jeong
- b Department of Molecular Cell Biology, Single Cell Network Research Center , Sungkyunkwan University School of Medicine , Suwon , South Korea
| | - Hyebeen Kim
- b Department of Molecular Cell Biology, Single Cell Network Research Center , Sungkyunkwan University School of Medicine , Suwon , South Korea
| | - Dahee Choi
- a Division of Life Sciences , Korea University , Seoul , South Korea
| | - Sung-Chun Cho
- c Well Aging Research Center, Samsung Advanced Institute of Technology , Samsung Electronics Co. Ltd , Suwon , South Korea
| | - Je Kyung Seong
- d Korea Mouse Phenotyping Center , Seoul National University , Seoul , South Korea
| | - Seung-Hoi Koo
- a Division of Life Sciences , Korea University , Seoul , South Korea
| | - Jong-Sun Kang
- b Department of Molecular Cell Biology, Single Cell Network Research Center , Sungkyunkwan University School of Medicine , Suwon , South Korea.,e Samsung Biomedical Research Institute , Samsung Medical Center , Seoul , South Korea
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202
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Sotgia S, Zinellu A, Paliogiannis P, Pinna GA, Mangoni AA, Milanesi L, Carru C. A diethylpyrocarbonate-based derivatization method for the LC-MS/MS measurement of plasma arginine and its chemically related metabolites and analogs. Clin Chim Acta 2019; 492:29-36. [PMID: 30731087 DOI: 10.1016/j.cca.2019.02.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2018] [Accepted: 02/04/2019] [Indexed: 12/29/2022]
Abstract
BACKGROUND Changes in NO metabolism correlate with cardiovascular risk factors and are associated with endothelial dysfunction. NO availability is regulated by nitric oxide synthase (NOS) and arginine and some chemically related metabolites and analogs have the capacity to alter NOS activity. Hence the need for analytical methods for the simultaneous assessment of these analytes. METHODS Analytes (L-arginine (Arg), NG-monomethyl-L-arginine (MMA), L-homoarginine (hArg), asymmetric dimethyl-L-arginine (ADMA), symmetric dimethyl-L-arginine (SDMA), and L-citrulline (CIT)) were isolated from human plasma by thermal coagulation of plasma followed by a derivatization with diethylpyrocarbonate. Carbetoxy derivatives were separated on a C18 reversed-phase column in <10 min using an aqueous solution of 0.4% v/v formic acid and acetonitrile (95:5, v/v) mixture as a mobile phase. Positive electrospray ionization and tandem mass spectrometry in combination with specific multiple reaction monitoring transitions were used for detection of analytes and three deuterated forms of the analytes used as internal standards. RESULTS Intra- and inter-day precision %RSD values ranged between 3 and 5.5% and percentage recoveries were close to 100% for all analytes. Plasma concentrations in 20 healthy male volunteers were 58.62 ± 8.81 μmol/L for Arg, 105.08 ± 21.66 nmol/L for MMA, 1.88 ± 0.57 μmol/L for hArg, 0.612 ± 0.140 μmol/L for ADMA, 0.581 ± 0.172 μmol/L for SDMA, and 28.62 ± 11.60 μmol/L for Cit, respectively. CONCLUSION This LC-MS/MS method provides the capacity to quantify the plasma concentrations of arginine and some of its chemically related metabolites. Sample preparation was simple, inexpensive and effortless. Overall, given the short sample preparation and chromatographic run time, the method may be suitable for the fast and reproducible quantitative determination of the analytes in large clinical trials and routine analysis.
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Affiliation(s)
- Salvatore Sotgia
- Department of Biomedical Sciences, School of Medicine, University of Sassari, Sassari, Italy.
| | - Angelo Zinellu
- Department of Biomedical Sciences, School of Medicine, University of Sassari, Sassari, Italy
| | - Panagiotis Paliogiannis
- Department of Biomedical Sciences, School of Medicine, University of Sassari, Sassari, Italy
| | - Gerard A Pinna
- Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy
| | - Arduino A Mangoni
- Department of Clinical Pharmacology, College of Medicine and Public Health, Flinders University and Flinders Medical Centre, Adelaide, Australia
| | - Luciano Milanesi
- National Research Council (CNR), Institute for Biomedical Technologies, Segrate, Italy
| | - Ciriaco Carru
- Department of Biomedical Sciences, School of Medicine, University of Sassari, Sassari, Italy; Quality Control Unit, University Hospital of Sassari (AOU-SS), Sassari, Italy
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203
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den Dekker A, Davis FM, Kunkel SL, Gallagher KA. Targeting epigenetic mechanisms in diabetic wound healing. Transl Res 2019; 204:39-50. [PMID: 30392877 PMCID: PMC6331222 DOI: 10.1016/j.trsl.2018.10.001] [Citation(s) in RCA: 120] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Revised: 10/02/2018] [Accepted: 10/02/2018] [Indexed: 02/07/2023]
Abstract
Impaired wound healing is a major secondary complication of type 2 diabetes that often results in limb loss and disability. Normal tissue repair progresses through discrete phases including hemostasis, inflammation, proliferation, and remodeling. In diabetes, normal progression through these phases is impaired resulting in a sustained inflammatory state and dysfunctional epithelialization in the wound. Due to their plasticity, macrophages play a critical role in the transition from the inflammation phase to the proliferation phase. Diabetes disrupts macrophage function by impairing monocyte recruitment to the wound, reducing phagocytosis, and prohibiting the transition of inflammatory macrophages to an anti-inflammatory state. Diabetes also impedes keratinocyte and fibroblast function during the later phases resulting in impaired epithelialization of the wound. Several recent studies suggest that altered epigenetic regulation of both immune and structural cells in wounds may influence cell phenotypes and healing, particularly in pathologic states, such as diabetes. Specifically, it has been shown that macrophage plasticity during wound repair is partly regulated epigenetically and that diabetes alters this epigenetic regulation and contributes to a sustained inflammatory state. Epigenetic regulation is also known to regulate keratinocyte and fibroblast function during wound repair. In this review, we provide an introduction to the epigenetic mechanisms that regulate tissue repair and highlight recent findings that demonstrate, how epigenetic events are altered during the course of diabetic wound healing.
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Affiliation(s)
- Aaron den Dekker
- Department of Surgery, University of Michigan, Ann Arbor, Michgan
| | - Frank M Davis
- Department of Surgery, University of Michigan, Ann Arbor, Michgan
| | - Steve L Kunkel
- Department of Pathology, University of Michigan, Ann Arbor, Michigan
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204
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van der Kouwe E, Staber PB. RUNX1-ETO: Attacking the Epigenome for Genomic Instable Leukemia. Int J Mol Sci 2019; 20:E350. [PMID: 30654457 PMCID: PMC6358732 DOI: 10.3390/ijms20020350] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/09/2019] [Accepted: 01/11/2019] [Indexed: 12/29/2022] Open
Abstract
Oncogenic fusion protein RUNX1-ETO is the product of the t(8;21) translocation, responsible for the most common cytogenetic subtype of acute myeloid leukemia. RUNX1, a critical transcription factor in hematopoietic development, is fused with almost the entire ETO sequence with the ability to recruit a wide range of repressors. Past efforts in providing a comprehensive picture of the genome-wide localization and the target genes of RUNX1-ETO have been inconclusive in understanding the underlying mechanism by which it deregulates native RUNX1. In this review; we dissect the current data on the epigenetic impact of RUNX1 and RUNX1-ETO. Both share similarities however, in recent years, research focused on epigenetic factors to explain their differences. RUNX1-ETO impairs DNA repair mechanisms which compromises genomic stability and favors a mutator phenotype. Among an increasing pool of mutated factors, regulators of DNA methylation are frequently found in t(8;21) AML. Together with the alteration of both, histone markers and distal enhancer regulation, RUNX1-ETO might specifically disrupt normal chromatin structure. Epigenetic studies on the fusion protein uncovered new mechanisms contributing to leukemogenesis and hopefully will translate into clinical applications.
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Affiliation(s)
- Emiel van der Kouwe
- Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria.
| | - Philipp Bernhard Staber
- Department of Internal Medicine I, Division of Hematology and Hemostaseology, Medical University of Vienna, 1090 Vienna, Austria.
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205
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Ran T, Li W, Peng B, Xie B, Lu T, Lu S, Liu W. Virtual Screening with a Structure-Based Pharmacophore Model to Identify Small-Molecule Inhibitors of CARM1. J Chem Inf Model 2019; 59:522-534. [PMID: 30607947 DOI: 10.1021/acs.jcim.8b00610] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
CARM1 (coactivator-associated arginine methyltransferase 1), also known as PRMT4 (protein arginine N-methyltransferase 4), belongs to the protein arginine methyltransferase (PRMT) family, which has emerged as a potential anticancer drug target. To discover new CARM1 inhibitors, we performed virtual screening against the substrate-binding site in CARM1. Structure-based pharmacophore models, which were generated according to three druggable subpockets embedding critical residues for ligand binding, were applied for virtual screening. The importance of the solvent-exposed substrate-binding cavity was highlighted due to significant hydrophobicity. Aided by molecular docking, 15 compounds structurally distinct from known CARM1 inhibitors were selected to evaluate their inhibitory effects on CARM1 methyltransferase activity, which resulted in seven compounds exhibiting micromolar inhibition, with selectivity over other members in the PRMT protein family. Moreover, three of them exhibited potent antiproliferation activities in breast cancer cells. Particularly, compound NO.2 exhibited potent activity both in vitro and in cultured cells, which will serve as a leading hit for developing CARM1 inhibitors with improved efficacy. The virtual screening strategy in this study will be applicable for the discovery of substrate-competitive inhibitors targeting other members in the PRMT protein family.
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Affiliation(s)
- Ting Ran
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research , Xiamen University , Xiamen , Fujian 361102 , China.,Department of Chemical Biology, College of Chemistry and Chemical Engineering , Xiamen University , Xiamen , Fujian 361105 , China
| | - Wenjuan Li
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research , Xiamen University , Xiamen , Fujian 361102 , China
| | - Bingling Peng
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research , Xiamen University , Xiamen , Fujian 361102 , China
| | - Binglan Xie
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research , Xiamen University , Xiamen , Fujian 361102 , China
| | - Tao Lu
- Department of Organic Chemistry, School of Sciences , China Pharmaceutical University , Nanjing , Jiangsu 210009 , China
| | - Shuai Lu
- Department of Organic Chemistry, School of Sciences , China Pharmaceutical University , Nanjing , Jiangsu 210009 , China
| | - Wen Liu
- School of Pharmaceutical Sciences, Fujian Provincial Key Laboratory of Innovative Drug Target Research , Xiamen University , Xiamen , Fujian 361102 , China.,State Key Laboratory of Cellular Stress Biology , Xiamen University , Xiamen , Fujian 361102 , China
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206
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Li H, Su L, Su X, Liu X, Wang D, Li H, Ba X, Zhang Y, Lu J, Huang B, Li X. Arginine methylation of SKN-1 promotes oxidative stress resistance in Caenorhabditis elegans. Redox Biol 2019; 21:101111. [PMID: 30682707 PMCID: PMC6351272 DOI: 10.1016/j.redox.2019.101111] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/09/2019] [Accepted: 01/13/2019] [Indexed: 01/07/2023] Open
Abstract
Caenorhabditis elegans NRF (NF-E2-related factor)/CNC (Cap'n'collar) transcription factor, Skinhead-1 (SKN-1), is conservatively critical for promoting phase II detoxification gene expressions in response to oxidative stress. SKN-1 activity is controlled by well-known phosphorylation and recently-reported O-GlcNAcylation. Whether other kinds of posttanslational modifications of SKN-1 occur and influence its function remains elusive. Here, we found arginines 484 and 516 (R484/R516) of SKN-1 were asymmetrically dimethylated by PRMT-1. Oxidative stress enhanced the binding of PRMT-1 to SKN-1. Consequently, asymmetrical dimethylation of arginines on SKN-1 was elevated. Loss of prmt-1 or disruption of R484/R516 dimethylation decreased the enrichment of SKN-1 on the promoters of SKN-1-driven phase II detoxification genes, including gamma-glutamine cysteine synthetase gcs-1, glutathione S-transferases gst-7 and gst-4, which resulted in reduced ability of worms to defense against oxidative stress. These findings have important implications for investigating the physiological and pathological functions of arginine methylation on conserved NRF/CNC transcription factors in human diseases related to oxidative stress response. Arg 484/516 of SKN-1 are asymmetrically dimethylated by PRMT-1 in C. elegans. Oxidative stress enhances the binding of PRMT-1 to SKN-1. Oxidative stress elevates asymmetrical dimethylation of arginines on SKN-1. Arg 484/516 methylation increases SKN-1 binding to detoxification gene promoters. Arg 484/516 methylation promotes function of SKN-1 in oxidative stress resistance.
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Affiliation(s)
- Hongyuan Li
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China; Laboratory of Chemical Biology, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
| | - Liangping Su
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China; School of Basic Medical Sciences, Guilin Medical University, Guilin 541004, China
| | - Xin Su
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Xin Liu
- College of Life Sciences, Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Jilin Agricultural University, Changchun 130118, China
| | - Dan Wang
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Hongmei Li
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Xueqing Ba
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Yu Zhang
- The Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Jun Lu
- The Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China
| | - Baiqu Huang
- The Institute of Genetics and Cytology, Northeast Normal University, Changchun 130024, China.
| | - Xiaoxue Li
- The Key Laboratory of Molecular Epigenetics of the Ministry of Education, Northeast Normal University, Changchun 130024, China.
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207
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Hymbaugh SJ, Pecor LM, Tracy CM, Comstock LR. Protein Arginine Methyltransferase 1‐Dependent Labeling and Isolation of Histone H4 through
N
‐Mustard Analogues of
S
‐Adenosyl‐
l
‐methionine. Chembiochem 2019; 20:379-384. [DOI: 10.1002/cbic.201800477] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Revised: 11/13/2018] [Indexed: 12/14/2022]
Affiliation(s)
- Sarah J. Hymbaugh
- Department of ChemistryWake Forest University 455 Vine Street Wake Downtown NC 27101-4135 USA
| | - Lindsay M. Pecor
- Department of ChemistryWake Forest University 455 Vine Street Wake Downtown NC 27101-4135 USA
| | - Christopher M. Tracy
- Department of ChemistryWake Forest University 455 Vine Street Wake Downtown NC 27101-4135 USA
| | - Lindsay R. Comstock
- Department of ChemistryWake Forest University 455 Vine Street Wake Downtown NC 27101-4135 USA
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208
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Birnbaum R, Yosha-Orpaz N, Yanoov-Sharav M, Kidron D, Gur H, Yosovich K, Lerman-Sagie T, Malinger G, Lev D. Prenatal and postnatal presentation of PRMT7 related syndrome: Expanding the phenotypic manifestations. Am J Med Genet A 2018; 179:78-84. [PMID: 30513135 DOI: 10.1002/ajmg.a.6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 10/23/2018] [Accepted: 10/24/2018] [Indexed: 12/11/2022]
Abstract
Protein arginine methyltransferase 7 (PRMT7) is a member of a family of enzymes that catalyze the transfer of methyl groups from S-adenosyl-l-methionine to nitrogen atoms on arginine residues. Arginine methylation is involved in multiple biological processes, such as signal transduction, mRNA splicing, transcriptional control, DNA repair, and protein translocation. Currently, 10 patients have been described with mutations in PRMT7. The shared findings include: hypotonia, intellectual disability, short stature, brachydactyly, and mild dysmorphic features. We describe the prenatal, postnatal, and pathological findings in two male sibs homozygote for a mutation in PRMT7. Both had intrauterine growth restriction involving mainly the long bones. In addition, eye tumor was found in the first patient, and nonspecific brain calcifications and a systemic venous anomaly in the second. The pregnancy of the first child was terminated and we describe the autopsy findings. The second child had postnatal growth restriction of prenatal onset, hypotonia, strabismus, sensorineural hearing loss, genitourinary and skeletal involvement, and global developmental delay. He had dysmorphic features that included frontal bossing, upslanting palpebral fissures, small nose with depressed nasal bridge, and pectus excavatum. Our patients provide additional clinical and pathological data and expand the phenotypic manifestations associated with PRMT7 homozygote/compound heterozygote mutations to include brain calcifications and delayed myelination, and congenital orbital tumor.
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Affiliation(s)
- Roee Birnbaum
- OB-GYN Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Medical Center, Tel Aviv, Israel.,Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel
| | - Naama Yosha-Orpaz
- Metabolic Neurogenetic Service, Holon, Israel.,Pediatric Neurology Unit, Holon, Israel
| | - Miri Yanoov-Sharav
- Metabolic Neurogenetic Service, Holon, Israel.,The Rina Mor Institute of Medical Genetics, Wolfson Medical Center, Holon, Israel
| | - Dvora Kidron
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.,Pathology Department, Sapir Medical Center, Kfar Saba, Israel
| | - Hila Gur
- Molecular Genetics Laboratory, Wolfson Medical Center, Holon, Israel
| | - Keren Yosovich
- Metabolic Neurogenetic Service, Holon, Israel.,Molecular Genetics Laboratory, Wolfson Medical Center, Holon, Israel
| | - Tally Lerman-Sagie
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.,Metabolic Neurogenetic Service, Holon, Israel.,Pediatric Neurology Unit, Holon, Israel
| | - Gustavo Malinger
- OB-GYN Ultrasound Unit, Lis Maternity Hospital, Tel Aviv Medical Center, Tel Aviv, Israel.,Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel
| | - Dorit Lev
- Sackler School of Medicine, Tel Aviv University, Tel-Aviv, Israel.,Metabolic Neurogenetic Service, Holon, Israel.,The Rina Mor Institute of Medical Genetics, Wolfson Medical Center, Holon, Israel
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209
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Mann SA, Salsburg A, Causey CP, Knuckley B. The development and characterization of a chemical probe targeting PRMT1 over PRMT5. Bioorg Med Chem 2018; 27:224-229. [PMID: 30529151 DOI: 10.1016/j.bmc.2018.12.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 11/19/2018] [Accepted: 12/01/2018] [Indexed: 01/27/2023]
Abstract
Protein arginine methyltransferases (PRMTs) are a family of mammalian enzymes catalyzing the symmetric dimethylation (Type I), asymmetric dimethylation (Type II), or monomethylation (Type III) of arginine residues within proteins. This family is composed of 11 isozymes, however the vast majority of asymmetric and symmetric dimethylation in mammals is completed by either PRMT1 or PRMT5, respectively. In recent years, a number of chemical probes targeting this family of enzymes have been developed, but the majority of these probes lack isozyme specificity. Herein, we report the development of a chemical probe, based on a non-natural peptide sequence, which specifically labels PRMT1 over PRMT5 with high selectivity and sensitivity.
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Affiliation(s)
- Sarah A Mann
- Department of Chemistry, University of North Florida, Jacksonville, FL 32224-7699, United States
| | - Andrew Salsburg
- Department of Chemistry, University of North Florida, Jacksonville, FL 32224-7699, United States
| | - Corey P Causey
- Department of Chemistry, University of North Florida, Jacksonville, FL 32224-7699, United States
| | - Bryan Knuckley
- Department of Chemistry, University of North Florida, Jacksonville, FL 32224-7699, United States.
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210
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Shailesh H, Zakaria ZZ, Baiocchi R, Sif S. Protein arginine methyltransferase 5 (PRMT5) dysregulation in cancer. Oncotarget 2018; 9:36705-36718. [PMID: 30613353 PMCID: PMC6291173 DOI: 10.18632/oncotarget.26404] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 11/16/2018] [Indexed: 01/25/2023] Open
Abstract
Protein arginine methyltransferases (PRMTs) are known for their ability to catalyze methylation of specific arginine residues in a wide variety of cellular proteins, which are involved in a plethora of processes including signal transduction, transcription, and more recently DNA recombination. All members of the PRMT family can be grouped into three main classes depending on the type of methylation they catalyze. Type I PRMTs induce monomethylation and asymmetric dimethylation, while type II PRMTs catalyze monomethylation and symmetric dimethylation of specific arginine residues. In contrast, type III PRMTs carry out only monomethylation of arginine residues. In this review, we will focus on PRMT5, a type II PRMT essential for viability and normal development, which has been shown to be overexpressed in a wide variety of cancer cell types, owing it to the crucial role it plays in controlling key growth regulatory pathways. Furthermore, the role of PRMT5 in regulating expression and stability of key transcription factors that control normal stem cell function as well as cancer stem cell renewal will be discussed. We will review recent work that shows that through its ability to methylate various cellular proteins, PRMT5 functions as a master epigenetic regulator essential for growth and development, and we will highlight studies that have examined its dysregulation and the effects of its inhibition on cancer cell growth.
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Affiliation(s)
- Harshita Shailesh
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Zain Z Zakaria
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Robert Baiocchi
- Division of Hematology, Department of Internal Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Saïd Sif
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
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211
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Cardiac specific PRMT1 ablation causes heart failure through CaMKII dysregulation. Nat Commun 2018; 9:5107. [PMID: 30504773 PMCID: PMC6269446 DOI: 10.1038/s41467-018-07606-y] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 11/02/2018] [Indexed: 02/07/2023] Open
Abstract
Dysregulation of Ca2+/calmodulin-dependent protein kinase (CaMK)II is closely linked with myocardial hypertrophy and heart failure. However, the mechanisms that regulate CaMKII activity are incompletely understood. Here we show that protein arginine methyltransferase 1 (PRMT1) is essential for preventing cardiac CaMKII hyperactivation. Mice null for cardiac PRMT1 exhibit a rapid progression to dilated cardiomyopathy and heart failure within 2 months, accompanied by cardiomyocyte hypertrophy and fibrosis. Consistently, PRMT1 is downregulated in heart failure patients. PRMT1 depletion in isolated cardiomyocytes evokes hypertrophic responses with elevated remodeling gene expression, while PRMT1 overexpression protects against pathological responses to neurohormones. The level of active CaMKII is significantly elevated in PRMT1-deficient hearts or cardiomyocytes. PRMT1 interacts with and methylates CaMKII at arginine residues 9 and 275, leading to its inhibition. Accordingly, pharmacological inhibition of CaMKII restores contractile function in PRMT1-deficient mice. Thus, our data suggest that PRMT1 is a critical regulator of CaMKII to maintain cardiac function. The mechanisms that regulate the activity of Ca2 +/calmodulin-dependent protein kinase II (CaMKII) in the context of heart failure are incompletely understood. Here the authors show that protein arginine methyltransferase 1 (PRMT1) prevents cardiac hyperactivation of CaMKII and heart failure development by methylating CaMKII at arginine residues 9 and 275.
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212
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Mo K, Xu H, Gong H, Lei H, Wang Y, Guo W, Xu S, Tu W. Dorsal Root Ganglia Coactivator-associated Arginine Methyltransferase 1 Contributes to Peripheral Nerve Injury-induced Pain Hypersensitivities. Neuroscience 2018; 394:232-242. [PMID: 30391528 DOI: 10.1016/j.neuroscience.2018.10.038] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 10/17/2018] [Accepted: 10/22/2018] [Indexed: 10/28/2022]
Abstract
Neuropathic pain is associated with gene expression changes within the dorsal root ganglion (DRG) after peripheral nerve injury, which involves epigenetic mechanisms. Coactivator-associated arginine methyltransferase 1 (CARM1), an epigenetic activator, regulates gene transcriptional activity by protein posttranslational modifications. However, whether CARM1 plays an essential role in the development and maintenance of neuropathic pain is unknown. We report here that peripheral nerve injury induced the upregulation of the mRNA and protein expression of CARM1 in the injured DRG, and blocking its expression through small interfering RNA (siRNA) in the injured DRG attenuated the development and maintenance of neuropathic pain. Furthermore, pharmacological inhibition of CARM1 mitigated peripheral nerve injury-induced mechanical allodynia and thermal hyperalgesia. Given that CARM1 inhibition or knockdown attenuated the induction and maintenance of neuropathic pain after peripheral nerve injury, our findings suggest that CARM1 may serve as a promising therapeutic target for neuropathic pain treatment in clinical applications.
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Affiliation(s)
- Kai Mo
- Department of Anesthesiology, Guangzhou General Hospital of Guangzhou Military Command, Southern Medical University (Guangzhou School of Clinic Medicine, Southern Medical University), Guangzhou 510010, China; Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Huali Xu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Hualei Gong
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Hongyi Lei
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Yongwei Wang
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Wenjing Guo
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Shiyuan Xu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510280, China
| | - Weifeng Tu
- Department of Anesthesiology, Guangzhou General Hospital of Guangzhou Military Command, Southern Medical University (Guangzhou School of Clinic Medicine, Southern Medical University), Guangzhou 510010, China.
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213
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Luna RCP, de Oliveira Y, Lisboa JVC, Chaves TR, de Araújo TAM, de Sousa EE, Miranda Neto M, Pirola L, Braga VA, de Brito Alves JL. Insights on the epigenetic mechanisms underlying pulmonary arterial hypertension. ACTA ACUST UNITED AC 2018; 51:e7437. [PMID: 30365723 PMCID: PMC6207290 DOI: 10.1590/1414-431x20187437] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 09/04/2018] [Indexed: 12/21/2022]
Abstract
Pulmonary arterial hypertension (PAH), characterized by localized increased
arterial blood pressure in the lungs, is a slow developing long-term disease
that can be fatal. PAH is characterized by inflammation, vascular tone
imbalance, pathological pulmonary vascular remodeling, and right-sided heart
failure. Current treatments for PAH are palliative and development of new
therapies is necessary. Recent and relevant studies have demonstrated that
epigenetic processes may exert key influences on the pathogenesis of PAH and may
be promising therapeutic targets in the prevention and/or cure of this
condition. The aim of the present mini-review is to summarize the occurrence of
epigenetic-based mechanisms in the context of PAH physiopathology, focusing on
the roles of DNA methylation, histone post-translational modifications and
non-coding RNAs. We also discuss the potential of epigenetic-based therapies for
PAH.
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Affiliation(s)
- R C P Luna
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - Y de Oliveira
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - J V C Lisboa
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - T R Chaves
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - T A M de Araújo
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - E E de Sousa
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - M Miranda Neto
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - L Pirola
- INSERM U1060, Lyon 1 University, Oullins, France
| | - V A Braga
- Departamento de Biotecnologia, Centro de Biotecnologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
| | - J L de Brito Alves
- Departamento de Nutrição, Centro de Ciências da Saúde, Universidade Federal da Paraíba, João Pessoa, PB, Brasil.,Departamento de Biotecnologia, Centro de Biotecnologia, Universidade Federal da Paraíba, João Pessoa, PB, Brasil
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214
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Frankel A, Brown JI. Evaluation of kinetic data: What the numbers tell us about PRMTs. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2018; 1867:306-316. [PMID: 30342239 DOI: 10.1016/j.bbapap.2018.10.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 10/10/2018] [Accepted: 10/14/2018] [Indexed: 01/06/2023]
Abstract
Protein arginine N-methyltransferase (PRMT) kinetic parameters have been catalogued over the past fifteen years for eight of the nine mammalian enzyme family members. Like the majority of methyltransferases, these enzymes employ the highly ubiquitous cofactor S-adenosyl-l-methionine as a co-substrate to methylate arginine residues in peptidic substrates with an approximately 4-μM median KM. The median values for PRMT turnover number (kcat) and catalytic efficiency (kcat/KM) are 0.0051 s-1 and 708 M-1 s-1, respectively. When comparing PRMT metrics to entries found in the BRENDA database, we find that while PRMTs exhibit high substrate affinity relative to other enzyme-substrate pairs, PRMTs display largely lower kcat and kcat/KM values. We observe that kinetic parameters for PRMTs and arginine demethylase activity from dual-functioning lysine demethylases are statistically similar, paralleling what the broader enzyme families in which they belong reveal, and adding to the evidence in support of arginine methylation reversibility.
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Affiliation(s)
- Adam Frankel
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada.
| | - Jennifer I Brown
- Faculty of Pharmaceutical Sciences, University of British Columbia, 2405 Wesbrook Mall, Vancouver, BC V6T 1Z3, Canada
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215
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Yoon S, Rossi JJ. Aptamers: Uptake mechanisms and intracellular applications. Adv Drug Deliv Rev 2018; 134:22-35. [PMID: 29981799 PMCID: PMC7126894 DOI: 10.1016/j.addr.2018.07.003] [Citation(s) in RCA: 95] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 06/06/2018] [Accepted: 07/04/2018] [Indexed: 01/10/2023]
Abstract
The structural flexibility and small size of aptamers enable precise recognition of cellular elements for imaging and therapeutic applications. The process by which aptamers are taken into cells depends on their targets but is typically clathrin-mediated endocytosis or macropinocytosis. After internalization, most aptamers are transported to endosomes, lysosomes, endoplasmic reticulum, Golgi apparatus, and occasionally mitochondria and autophagosomes. Intracellular aptamers, or “intramers,” have versatile functions ranging from intracellular RNA imaging, gene regulation, and therapeutics to allosteric modulation, which we discuss in this review. Immune responses to therapeutic aptamers and the effects of G-quadruplex structure on aptamer function are also discussed.
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216
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CARM1 (PRMT4) Acts as a Transcriptional Coactivator during Retinoic Acid-Induced Embryonic Stem Cell Differentiation. J Mol Biol 2018; 430:4168-4182. [PMID: 30153436 PMCID: PMC6186513 DOI: 10.1016/j.jmb.2018.08.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/25/2018] [Accepted: 08/12/2018] [Indexed: 02/07/2023]
Abstract
Activation of the retinoic acid (RA) signaling pathway is important for controlling embryonic stem cell differentiation and development. Modulation of this pathway occurs through the recruitment of different epigenetic regulators at the retinoic acid receptors (RARs) located at RA-responsive elements and/or RA-responsive regions of RA-regulated genes. Coactivator-associated arginine methyltransferase 1 (CARM1, PRMT4) is a protein arginine methyltransferase that also functions as a transcriptional coactivator. Previous studies highlight CARM1's importance in the differentiation of different cell types. We address CARM1 function during RA-induced differentiation of murine embryonic stem cells (mESCs) using shRNA lentiviral transduction and CRISPR/Cas9 technology to deplete CARM1 in mESCs. We identify CARM1 as a novel transcriptional coactivator required for the RA-associated decrease in Rex1 (Zfp42) and for the RA induction of a subset of RA-regulated genes, including CRABP2 and NR2F1 (Coup-TF1). Furthermore, CARM1 is required for mESCs to differentiate into extraembryonic endoderm in response to RA. We next characterize the epigenetic mechanisms that contribute to RA-induced transcriptional activation of CRABP2 and NR2F1 in mESCs and show for the first time that CARM1 is required for this activation. Collectively, our data demonstrate that CARM1 is required for transcriptional activation of a subset of RA target genes, and we uncover changes in the recruitment of Suz12 and the epigenetic H3K27me3 and H3K27ac marks at gene regulatory regions for CRABP2 and NR2F1 during RA-induced differentiation.
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217
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Biswas S, Rao CM. Epigenetic tools (The Writers, The Readers and The Erasers) and their implications in cancer therapy. Eur J Pharmacol 2018; 837:8-24. [PMID: 30125562 DOI: 10.1016/j.ejphar.2018.08.021] [Citation(s) in RCA: 215] [Impact Index Per Article: 35.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 07/26/2018] [Accepted: 08/15/2018] [Indexed: 02/08/2023]
Abstract
Addition of chemical tags on the DNA and modification of histone proteins impart a distinct feature on chromatin architecture. With the advancement in scientific research, the key players underlying these changes have been identified as epigenetic modifiers of the chromatin. Indeed, the plethora of enzymes catalyzing these modifications, portray the diversity of epigenetic space and the intricacy in regulating gene expression. These epigenetic players are categorized as writers: that introduce various chemical modifications on DNA and histones, readers: the specialized domain containing proteins that identify and interpret those modifications and erasers: the dedicated group of enzymes proficient in removing these chemical tags. Research over the past few decades has established that these epigenetic tools are associated with numerous disease conditions especially cancer. Besides, with the involvement of epigenetics in cancer, these enzymes and protein domains provide new targets for cancer drug development. This is certain from the volume of epigenetic research conducted in universities and R&D sector of pharmaceutical industry. Here we have highlighted the different types of epigenetic enzymes and protein domains with an emphasis on methylation and acetylation. This review also deals with the recent developments in small molecule inhibitors as potential anti-cancer drugs targeting the epigenetic space.
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Affiliation(s)
- Subhankar Biswas
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India
| | - C Mallikarjuna Rao
- Department of Pharmacology, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal 576104, Karnataka, India.
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218
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Liffman R, Johnstone T, Tennent-Brown B, Hepworth G, Courtman N. Establishment of reference intervals for serum symmetric dimethylarginine in adult nonracing Greyhounds. Vet Clin Pathol 2018; 47:458-463. [DOI: 10.1111/vcp.12638] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Rebekah Liffman
- Translational Research and Animal Clinical Trial Study (TRACTS) Group; Faculty of Veterinary and Agricultural Sciences; University of Melbourne; Melbourne Vic. Australia
| | - Thurid Johnstone
- Translational Research and Animal Clinical Trial Study (TRACTS) Group; Faculty of Veterinary and Agricultural Sciences; University of Melbourne; Melbourne Vic. Australia
| | - Brett Tennent-Brown
- Translational Research and Animal Clinical Trial Study (TRACTS) Group; Faculty of Veterinary and Agricultural Sciences; University of Melbourne; Melbourne Vic. Australia
| | - Graham Hepworth
- Statistical Consulting Centre; The University of Melbourne; Parkville Vic. Australia
| | - Natalie Courtman
- Translational Research and Animal Clinical Trial Study (TRACTS) Group; Faculty of Veterinary and Agricultural Sciences; University of Melbourne; Melbourne Vic. Australia
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219
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The Arginine Methyltransferase PRMT6 Regulates DNA Methylation and Contributes to Global DNA Hypomethylation in Cancer. Cell Rep 2018; 21:3390-3397. [PMID: 29262320 DOI: 10.1016/j.celrep.2017.11.082] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 09/27/2017] [Accepted: 11/21/2017] [Indexed: 12/31/2022] Open
Abstract
DNA methylation plays crucial roles in chromatin structure and gene expression. Aberrant DNA methylation patterns, including global hypomethylation and regional hypermethylation, are associated with cancer and implicated in oncogenic events. How DNA methylation is regulated in developmental and cellular processes and dysregulated in cancer is poorly understood. Here, we show that PRMT6, a protein arginine methyltransferase responsible for asymmetric dimethylation of histone H3 arginine 2 (H3R2me2a), negatively regulates DNA methylation and that PRMT6 upregulation contributes to global DNA hypomethylation in cancer. Mechanistically, PRMT6 overexpression impairs chromatin association of UHRF1, an accessory factor of DNMT1, resulting in passive DNA demethylation. The effect is likely due to elevated H3R2me2a, which inhibits the interaction between UHRF1 and histone H3. Our work identifies a mechanistic link between protein arginine methylation and DNA methylation, which is disrupted in cancer.
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220
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FAM98A is localized to stress granules and associates with multiple stress granule-localized proteins. Mol Cell Biochem 2018; 451:107-115. [DOI: 10.1007/s11010-018-3397-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Accepted: 06/26/2018] [Indexed: 12/11/2022]
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221
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Chen H, Venkat S, McGuire P, Gan Q, Fan C. Recent Development of Genetic Code Expansion for Posttranslational Modification Studies. Molecules 2018; 23:E1662. [PMID: 29986538 PMCID: PMC6100177 DOI: 10.3390/molecules23071662] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 07/03/2018] [Accepted: 07/05/2018] [Indexed: 12/29/2022] Open
Abstract
Nowadays advanced mass spectrometry techniques make the identification of protein posttranslational modifications (PTMs) much easier than ever before. A series of proteomic studies have demonstrated that large numbers of proteins in cells are modified by phosphorylation, acetylation and many other types of PTMs. However, only limited studies have been performed to validate or characterize those identified modification targets, mostly because PTMs are very dynamic, undergoing large changes in different growth stages or conditions. To overcome this issue, the genetic code expansion strategy has been introduced into PTM studies to genetically incorporate modified amino acids directly into desired positions of target proteins. Without using modifying enzymes, the genetic code expansion strategy could generate homogeneously modified proteins, thus providing powerful tools for PTM studies. In this review, we summarized recent development of genetic code expansion in PTM studies for research groups in this field.
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Affiliation(s)
- Hao Chen
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Sumana Venkat
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Paige McGuire
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Qinglei Gan
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Chenguang Fan
- Cell and Molecular Biology Program, University of Arkansas, Fayetteville, AR 72701, USA.
- Department of Chemistry and Biochemistry, University of Arkansas, Fayetteville, AR 72701, USA.
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222
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Ostatná V, Kasalová V, Kmeťová K, Šedo O. Changes of electrocatalytic response of bovine serum albumin after its methylation and acetylation. J Electroanal Chem (Lausanne) 2018. [DOI: 10.1016/j.jelechem.2017.11.044] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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223
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Portelli M, Baron B. Clinical Presentation of Preeclampsia and the Diagnostic Value of Proteins and Their Methylation Products as Biomarkers in Pregnant Women with Preeclampsia and Their Newborns. J Pregnancy 2018; 2018:2632637. [PMID: 30050697 PMCID: PMC6046127 DOI: 10.1155/2018/2632637] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2018] [Accepted: 05/15/2018] [Indexed: 12/11/2022] Open
Abstract
Preeclampsia (PE) is a disorder which affects 1-10% of pregnant women worldwide. It is characterised by hypertension and proteinuria in the later stages of gestation and can lead to maternal and perinatal morbidity and mortality. Other than the delivery of the foetus and the removal of the placenta, to date there are no therapeutic approaches to treat or prevent PE. It is thus only possible to reduce PE-related mortality through early detection, careful monitoring, and treatment of the symptoms. For these reasons the search for noninvasive, blood-borne, or urinary biochemical markers that could be used for the screening, presymptomatic diagnosis, and prediction of the development of PE is of great urgency. So far, a number of biomarkers have been proposed for predicting PE, based on pathophysiological observations, but these have mostly proven to be unreliable and inconsistent between different studies. The clinical presentation of PE and data gathered for the biochemical markers placental growth factor (PlGF), soluble Feline McDonough Sarcoma- (fms-) like tyrosine kinase-1 (sFlt-1), asymmetric dimethylarginine (ADMA), and methyl-lysine is being reviewed with the aim of providing both a clinical and biochemical understanding of how these biomarkers might assist in the diagnosis of PE or indicate its severity.
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Affiliation(s)
- Maria Portelli
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
| | - Byron Baron
- Centre for Molecular Medicine and Biobanking, Faculty of Medicine and Surgery, University of Malta, Msida MSD2080, Malta
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224
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Yang CY, Chiu LL, Chang CC, Chuang HC, Tan TH. Induction of DUSP14 ubiquitination by PRMT5-mediated arginine methylation. FASEB J 2018; 32:fj201800244RR. [PMID: 29920217 PMCID: PMC6219832 DOI: 10.1096/fj.201800244rr] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 06/04/2018] [Indexed: 12/24/2022]
Abstract
Dual-specificity phosphatase (DUSP)14 (also known as MAP-kinase phosphatase 6) inhibits T-cell receptor (TCR) signaling and T-cell-mediated immune responses by inactivation of the TGF-β activated kinase 1 binding protein (TAB1)-TGF-β activated kinase 1 (TAK1) complex and ERK. DUSP14 phosphatase activity is induced by the E3 ligase TNF receptor associated factor (TRAF)2-mediated Lys63-linked ubiquitination. Here we report an interaction between DUSP14 and protein arginine methyltransferase (PRMT)5 by proximity ligation assay; similarly, DUSP14 directly interacted with TAB1 but not TAK1. DUSP14 is methylated by PRMT5 at arginine 17, 38, and 45 residues. The DUSP14 triple-methylation mutant was impaired in PRMT5-mediated arginine methylation, TRAF2-mediated lysine ubiquitination, and DUSP14 phosphatase activity. Consistently, DUSP14 methylation, TRAF2 binding, and DUSP14 ubiquitination were attenuated by PRMT5 short hairpin RNA knockdown. Furthermore, DUSP14 was inducibly interacted with PRMT5 and was methylated during TCR signaling in T cells. Together, these findings reveal a novel regulatory mechanism of DUSP14 by which PRMT5-mediated arginine methylation may sequentially stimulate TRAF2-mediated DUSP14 ubiquitination and phosphatase activity, leading to inhibition of TCR signaling.-Yang, C.-Y., Chiu, L.-L., Chang, C.-C., Chuang, H.-C., Tan, T.-H. Induction of DUSP14 ubiquitination by PRMT5-mediated arginine methylation.
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Affiliation(s)
- Chia-Yu Yang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Li-Li Chiu
- Department of Medical Education and Research, Taichung Veterans General Hospital, Taichung, Taiwan; and
| | - Chih-Chi Chang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Huai-Chia Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
| | - Tse-Hua Tan
- Immunology Research Center, National Health Research Institutes, Zhunan, Taiwan
- Department of Pathology and Immunology, Baylor College of Medicine, Houston, Texas, USA
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225
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Zhang B, Chen X, Ge S, Peng C, Zhang S, Chen X, Liu T, Zhang W. Arginine methyltransferase inhibitor-1 inhibits sarcoma viability in vitro and in vivo. Oncol Lett 2018; 16:2161-2166. [PMID: 30008914 PMCID: PMC6036477 DOI: 10.3892/ol.2018.8929] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 04/16/2018] [Indexed: 01/02/2023] Open
Abstract
Protein arginine methyltransferases (PRMTs) are a class of epigenetic modified enzymes that are overexpressed in a various types of cancer and serve pivotal functions in malignant transformation. Arginine methyltransferase inhibitor-1 (AMI-1) is a symmetrical sulfonated urea that inhibits the activity of type I PRMT in vitro. However, previous studies demonstrated that AMI-1 may also inhibit the activity of type II PRMT5 in vitro. To the best of our knowledge, the present study provides the first evidence that AMI-1 may significantly inhibit the viability of mouse sarcoma 180 (S180) and human osteosarcoma U2OS cells. Additionally, the results demonstrated that AMI-1 downregulated the activities of PRMT5, the symmetric dimethylation of histone 4 and histone 3 (a PRMT5-specific epigenetic mark) in a mouse xenograft model of S180 and induced apoptosis in S180 cells. Taken together, the results suggest that AMI-1 may exhibit antitumor effects against sarcoma cells by targeting PRMT5.
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Affiliation(s)
- Baolai Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xue Chen
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Suyin Ge
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Caili Peng
- Day-Care Unit, Gansu Provincial People's Hospital, Lanzhou, Gansu 730000, P.R. China
| | - Su Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xu Chen
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Tao Liu
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Wenkai Zhang
- Department of Pharmacology, School of Basic Medical Sciences, Lanzhou University, Lanzhou, Gansu 730000, P.R. China.,Key Lab of Preclinical Study for New Drugs of Gansu Province, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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226
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Huang L, Liu J, Zhang XO, Sibley K, Najjar SM, Lee MM, Wu Q. Inhibition of protein arginine methyltransferase 5 enhances hepatic mitochondrial biogenesis. J Biol Chem 2018; 293:10884-10894. [PMID: 29773653 DOI: 10.1074/jbc.ra118.002377] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 05/01/2018] [Indexed: 11/06/2022] Open
Abstract
Protein arginine methyltransferase 5 (PRMT5) regulates gene expression either transcriptionally by symmetric dimethylation of arginine residues on histones H4R3, H3R8, and H2AR3 or at the posttranslational level by methylation of nonhistone target proteins. Although emerging evidence suggests that PRMT5 functions as an oncogene, its role in metabolic diseases is not well-defined. We investigated the role of PRMT5 in promoting high-fat-induced hepatic steatosis. A high-fat diet up-regulated PRMT5 levels in the liver but not in other metabolically relevant tissues such as skeletal muscle or white and brown adipose tissue. This was associated with repression of master transcription regulators involved in mitochondrial biogenesis. In contrast, lentiviral short hairpin RNA-mediated reduction of PRMT5 significantly decreased phosphatidylinositol 3-kinase/AKT signaling in mouse AML12 liver cells. PRMT5 knockdown or knockout decreased basal AKT phosphorylation but boosted the expression of peroxisome proliferator-activated receptor α (PPARα) and PGC-1α with a concomitant increase in mitochondrial biogenesis. Moreover, by overexpressing an exogenous WT or enzyme-dead mutant PRMT5 or by inhibiting PRMT5 enzymatic activity with a small-molecule inhibitor, we demonstrated that the enzymatic activity of PRMT5 is required for regulation of PPARα and PGC-1α expression and mitochondrial biogenesis. Our results suggest that targeting PRMT5 may have therapeutic potential for the treatment of fatty liver.
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Affiliation(s)
- Lei Huang
- From the Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts 01655
| | - Jehnan Liu
- the Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, Ohio 43606
| | - Xiao-Ou Zhang
- the Program in Bioinformatics and Integrative Biology, University of Massachusetts Medical School, Worcester, Massachusetts 01655
| | - Katelyn Sibley
- the Department of Biochemistry, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, and
| | - Sonia M Najjar
- the Center for Diabetes and Endocrine Research, College of Medicine and Life Sciences, University of Toledo, Toledo, Ohio 43606.,the Department of Biomedical Sciences, Heritage College of Osteopathic Medicine, Ohio University, Athens, Ohio 45701
| | - Mary M Lee
- From the Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts 01655,
| | - Qiong Wu
- From the Department of Pediatrics, University of Massachusetts Medical School, Worcester, Massachusetts 01655,
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227
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Marichal L, Renault JP, Chédin S, Lagniel G, Klein G, Aude JC, Tellier-Lebegue C, Armengaud J, Pin S, Labarre J, Boulard Y. Importance of Post-translational Modifications in the Interaction of Proteins with Mineral Surfaces: The Case of Arginine Methylation and Silica surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5312-5322. [PMID: 29648834 DOI: 10.1021/acs.langmuir.8b00752] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Understanding the mechanisms involved in the interaction of proteins with inorganic surfaces is of major interest for both basic research and practical applications involving nanotechnology. From the list of cellular proteins with the highest affinity for silica nanoparticles, we highlighted the group of proteins containing arginine-glycine-glycine (RGG) motifs. Biochemical experiments confirmed that RGG motifs interact strongly with the silica surfaces. The affinity of these motifs is further increased when the R residue is asymmetrically, but not symmetrically, dimethylated. Molecular dynamics simulations show that the asymmetrical dimethylation generates an electrostatic asymmetry in the guanidinium group of the R residue, orientating and stabilizing it on the silica surface. The RGG motifs (methylated or not) systematically target the siloxide groups on the silica surface through an ionic interaction, immediately strengthened by hydrogen bonds with proximal silanol and siloxane groups. Given that, in vivo, RGG motifs are often asymmetrically dimethylated by specific cellular methylases, our data add support to the idea that this type of methylation is a key mechanism for cells to regulate the interaction of the RGG proteins with their cellular partners.
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Affiliation(s)
- Laurent Marichal
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
- LIONS, IRAMIS, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Jean-Philippe Renault
- LIONS, IRAMIS, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Stéphane Chédin
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Gilles Lagniel
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Géraldine Klein
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
- LIONS, IRAMIS, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Jean-Christophe Aude
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
- I2BC, CEA, CNRS, Université Paris-Saclay , Orsay , 91400 , France
| | | | - Jean Armengaud
- Laboratoire Innovations technologiques pour la Détection et le Diagnostic (Li2D), Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA , F-30207 Bagnols sur Cèze , France
| | - Serge Pin
- LIONS, IRAMIS, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Jean Labarre
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
| | - Yves Boulard
- I2BC, JOLIOT, DRF, CEA, CNRS, Université Paris-Saclay , Gif-sur-Yvette , 91191 , France
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228
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Araoi S, Daitoku H, Yokoyama A, Kako K, Hirota K, Fukamizu A. The GATA transcription factor ELT-2 modulates both the expression and methyltransferase activity of PRMT-1 in Caenorhabditis elegans. J Biochem 2018; 163:433-440. [PMID: 29361115 DOI: 10.1093/jb/mvy012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2017] [Accepted: 12/01/2017] [Indexed: 11/13/2022] Open
Abstract
Protein arginine methyltransferase 1 (PRMT1) catalyzes asymmetric arginine dimethylation of cellular proteins and thus modulates various biological processes, including gene regulation, RNA metabolism, cell signaling and DNA repair. Since prmt-1 null mutant completely abolishes asymmetric dimethylarginine in C. elegans, PRMT-1 is thought to play a crucial role in determining levels of asymmetric arginine dimethylation. However, the mechanism underlying the regulation of PRMT-1 activity remains largely unknown. Here, we explored for transcription factors that induce the expression of PRMT-1 by an RNAi screen using transgenic C. elegans harbouring prmt-1 promoter upstream of gfp. Of 529 clones, we identify a GATA transcription factor elt-2 as a positive regulator of Pprmt-1:: gfp expression and show that elt-2 RNAi decreases endogenous PRMT-1 expression at mRNA and protein levels. Nevertheless, surprisingly arginine methylation levels are increased when elt-2 is silenced, implying that erythroid-like transcription factor (ELT)-2 may also have ability to inhibit methyltransferase activity of PRMT-1. Supporting this idea, GST pull-down and co-immunoprecipitation assays demonstrate the interaction between ELT-2 and PRMT-1. Furthermore, we find that ELT-2 interferes with PRMT-1-induced arginine methylation in a dose-dependent manner. Collectively, our results illustrate the two modes of PRMT-1 regulation, which could determine the levels of asymmetric arginine dimethylation in C. elegans.
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Affiliation(s)
- Sho Araoi
- Graduate School of Life and Environmental Sciences
| | | | | | | | - Keiko Hirota
- Faculty of Life and Environmental Sciences.,Human Biology, School of Integrative and Global Majors, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8577, Japan
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229
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Ye F, Zhang W, Ye X, Jin J, Lv Z, Luo C. Identification of Selective, Cell Active Inhibitors of Protein Arginine Methyltransferase 5 through Structure-Based Virtual Screening and Biological Assays. J Chem Inf Model 2018; 58:1066-1073. [PMID: 29672052 DOI: 10.1021/acs.jcim.8b00050] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Protein arginine methyltransferase 5 (PRMT5), a type II PRMT enzyme, is reported as an important therapeutic target in leukemia and lymphoma. In the present study, based on the combination of virtual screening and biochemical validations, we discovered a series of small-molecule inhibitors targeting PRMT5. Among those, DC_Y134 exhibited the most potent activity with IC50 value of 1.7 μM and displayed good selectivity against other methyltransferases. Further treatment with DC_Y134 inhibited the proliferation of several hematological malignancy cell lines by causing cell cycle arrest and apoptosis. Western blot assays indicated that DC_Y134 reduced the cellular symmetrically dimethylated levels. In addition, we analyzed the binding mode of DC_Y134 through molecular docking, which revealed that DC_Y134 occupies the binding site of substrate arginine and explained the selectivity of this inhibitor. Taken together, compound DC_Y134 could be used to elucidate the biological roles of PRMT5 and serve as a lead compound for treatment of hematologic malignancies.
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Affiliation(s)
- Fei Ye
- College of Life Sciences , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Weiyao Zhang
- College of Life Sciences , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Xiaoqing Ye
- College of Life Sciences , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Jia Jin
- College of Life Sciences , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Zhengbing Lv
- College of Life Sciences , Zhejiang Sci-Tech University , Hangzhou 310018 , China
| | - Cheng Luo
- Drug Discovery and Design Center, State Key Laboratory of Drug Research , Shanghai Institute of Materia Medica, Chinese Academy of Sciences , Shanghai 201203 , China
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230
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Kramer J, Désor V, Brunst S, Wittmann SK, Lausen J, Heering J, Proschak A, Proschak E. A coupled fluorescence-based assay for the detection of protein arginine N-methyltransferase 6 (PRMT6) enzymatic activity. Anal Biochem 2018; 547:7-13. [PMID: 29410016 DOI: 10.1016/j.ab.2018.01.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 01/12/2018] [Accepted: 01/25/2018] [Indexed: 01/04/2023]
Abstract
The protein arginine N-methyltransferase 6 (PRMT6) is overexpressed in a variety of different cancer types and plays a role in human immunodeficiency virus (HIV) infections. Furthermore, the PRMT6 activity might also influence the pathogenesis of neurodegenerative, inflammatory, and cardiovascular diseases, whereby it becomes an interesting target for drug development. Previously reported activity assays for PRMT6 activity are either expensive, time-consuming or use radioactive substrates. To overcome these challenges, we developed a coupled fluorescence-based activity assay using recombinant PRMT6 expressed in E. coli. In the first step of the assay, the fluorogenic substrate Nα-Benzoyl-L-arginine-7-amido-4-methylcoumarin (Bz-Arg-AMC) is methylated by PRMT6, while in a second step the remaining un-methylated substrate is cleaved by trypsin, producing the fluorescent 7-amino-4-methylcoumarin.
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Affiliation(s)
- Jan Kramer
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany
| | - Veronika Désor
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany
| | - Steffen Brunst
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany
| | - Sandra K Wittmann
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany
| | - Jörn Lausen
- Institut für Transfusionsmedizin und Immunhämatologie, Sandhofstraße 1, D-60528, Frankfurt am Main, Germany
| | - Jan Heering
- Fraunhofer Institute for Molecular Biology and Applied Ecology IME, Project Group Translational Medicine and Pharmacology TMP, Theodor-Stern-Kai 7, D-60596, Frankfurt am Main, Germany
| | - Anna Proschak
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany
| | - Ewgenij Proschak
- Institute of Pharmaceutical Chemistry, Goethe University, Max-von-Laue-Straße 9, D-60438, Frankfurt am Main, Germany.
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231
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Cho JH, Lee R, Kim E, Choi YE, Choi EJ. PRMT1 negatively regulates activation-induced cell death in macrophages by arginine methylation of GAPDH. Exp Cell Res 2018; 368:50-58. [PMID: 29665354 DOI: 10.1016/j.yexcr.2018.04.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 04/12/2018] [Accepted: 04/13/2018] [Indexed: 12/27/2022]
Abstract
Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is implicated in cell death in addition to a role as a glycolytic enzyme. In particular, when cells are exposed to cellular stressors involving nitric oxide (NO) production, GAPDH can undergo NO-induced S-nitrosylation and S-nitrosylated GAPDH has been shown to elicit apoptosis. However, the mechanism underlying the regulation of the pro-apoptotic function of GAPDH remains unclear. Here, we found that protein arginine methyltransferase 1 (PRMT1) mediated arginine methylation of GAPDH in primary bone marrow-derived macrophages in a NO-dependent manner. Moreover, PRMT1 inhibited S-nitrosylation of GAPDH as well as its binding to SIAH1, thereby reducing the nuclear translocation of GAPDH in lipopolysaccharide (LPS)/interferon (IFN)-γ-activated macrophages. Furthermore, depletion of PRMT1 expression by RNA interference potentiated LPS/IFN-γ-induced apoptosis in macrophages. Taken together, our results suggest that PRMT1 has a previously unrecognized function to inhibit activation-induced cell death of macrophages through arginine methylation of GAPDH.
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Affiliation(s)
- Jun-Ho Cho
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Rana Lee
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Eunju Kim
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Yea Eun Choi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea
| | - Eui-Ju Choi
- Department of Life Sciences, Korea University, Seoul 02841, Republic of Korea.
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232
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Sato A, Kim JD, Mizukami H, Nakashima M, Kako K, Ishida J, Itakura A, Takeda S, Fukamizu A. Gestational changes in PRMT1 expression of murine placentas. Placenta 2018; 65:47-54. [PMID: 29908641 DOI: 10.1016/j.placenta.2018.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Revised: 03/24/2018] [Accepted: 04/06/2018] [Indexed: 10/17/2022]
Abstract
INTRODUCTION In mammals, the placenta is an organ that is required to maintain the development of fetus during pregnancy. Although the proper formation of placenta is in part regulated by the post-translational modifications of proteins, little is known regarding protein arginine methylation during placental development. Here, we characterized developmental expression of protein arginine methyltransferase 1 (PRMT1) in mouse placentas. METHODS Expression levels of PRMT1 mRNA and protein in placentas were investigated using the real-time quantitative PCR and Western blot, respectively. Next, the localization of PRMT1 was determined by immunohistochemistry and immunofluorescence analyses. In addition, the levels of methylarginines of placental proteins were quantified using liquid chromatography-tandem mass spectrometry (LC-MS/MS). RESULTS PRMT1 mRNA and its protein were expressed at highest levels in mid-gestation stages, and their expression showed stepwise decrease in the late gestation. At embryonic (E) day 9, PRMT1 was observed in several different trophoblast cell (TC) subtypes. Furthermore, PRMT1 was mainly expressed in the labyrinth zone of TCs at E13. Finally, total methylarginines of proteins were significantly reduced in late gestation of placentas compared with mid-gestation stages. DISCUSSION In this study, we found developmental changes in the placental expression of PRMT1 and in protein arginine methylation status during pregnancy. These findings provide fundamental information regarding placental PRMT1-mediated arginine methylation during the development.
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Affiliation(s)
- Anna Sato
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyoku, Tokyo 113-8421, Japan
| | - Jun-Dal Kim
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Hayase Mizukami
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Misaki Nakashima
- Graduate School of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Koichiro Kako
- Faculty of Life and Environmental Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8572, Japan
| | - Junji Ishida
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan
| | - Atsuo Itakura
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyoku, Tokyo 113-8421, Japan
| | - Satoru Takeda
- Department of Obstetrics and Gynecology, Juntendo University Faculty of Medicine, 2-1-1 Hongo, Bunkyoku, Tokyo 113-8421, Japan
| | - Akiyoshi Fukamizu
- Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8577, Japan.
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233
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Nakayama K, Szewczyk MM, dela Sena C, Wu H, Dong A, Zeng H, Li F, de Freitas RF, Eram MS, Schapira M, Baba Y, Kunitomo M, Cary DR, Tawada M, Ohashi A, Imaeda Y, Saikatendu KS, Grimshaw CE, Vedadi M, Arrowsmith CH, Barsyte-Lovejoy D, Kiba A, Tomita D, Brown PJ. TP-064, a potent and selective small molecule inhibitor of PRMT4 for multiple myeloma. Oncotarget 2018; 9:18480-18493. [PMID: 29719619 PMCID: PMC5915086 DOI: 10.18632/oncotarget.24883] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 03/06/2018] [Indexed: 01/23/2023] Open
Abstract
Protein arginine methyltransferase (PRMT) 4 (also known as coactivator-associated arginine methyltransferase 1; CARM1) is involved in a variety of biological processes and is considered as a candidate oncogene owing to its overexpression in several types of cancer. Selective PRMT4 inhibitors are useful tools for clarifying the molecular events regulated by PRMT4 and for validating PRMT4 as a therapeutic target. Here, we report the discovery of TP-064, a potent, selective, and cell-active chemical probe of human PRMT4 and its co-crystal structure with PRMT4. TP-064 inhibited the methyltransferase activity of PRMT4 with high potency (half-maximal inhibitory concentration, IC50 < 10 nM) and selectivity over other PRMT family proteins, and reduced arginine dimethylation of the PRMT4 substrates BRG1-associated factor 155 (BAF155; IC50= 340 ± 30 nM) and Mediator complex subunit 12 (MED12; IC50 = 43 ± 10 nM). TP-064 treatment inhibited the proliferation of a subset of multiple myeloma cell lines, with affected cells arrested in G1 phase of the cell cycle. TP-064 and its negative control (TP-064N) will be valuable tools to further investigate the biology of PRMT4 and the therapeutic potential of PRMT4 inhibition.
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Affiliation(s)
- Kazuhide Nakayama
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Magdalena M. Szewczyk
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Carlo dela Sena
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Hong Wu
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Aiping Dong
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Hong Zeng
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Fengling Li
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | | | - Mohammad S. Eram
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Matthieu Schapira
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Yuji Baba
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Mihoko Kunitomo
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Douglas R. Cary
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Michiko Tawada
- Medicinal Chemistry Research Laboratory, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Akihiro Ohashi
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Yasuhiro Imaeda
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Kumar Singh Saikatendu
- Structiural Biology, Takeda California Inc., 10410 Science Center Drive, San Diego, CA 92121, USA
| | - Charles E. Grimshaw
- Enzymology and Biophysical Chemistry, Takeda California Inc., 10410 Science Center Drive, San Diego, CA 92121, USA
| | - Masoud Vedadi
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario M5S 1A8, Canada
| | - Cheryl H. Arrowsmith
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
- Princess Margaret Cancer Centre and Department of Medical Biophysics, University of Toronto, Toronto, Ontario M5G 2M9, Canada
| | - Dalia Barsyte-Lovejoy
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
| | - Atsushi Kiba
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Daisuke Tomita
- Oncology Drug Discovery Unit, Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, Fujisawa, Kanagawa 251-8555, Japan
| | - Peter J. Brown
- Structural Genomics Consortium, University of Toronto, Toronto, Ontario M5G 1L7, Canada
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234
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Raposo AE, Piller SC. Protein arginine methylation: an emerging regulator of the cell cycle. Cell Div 2018; 13:3. [PMID: 29568320 PMCID: PMC5859524 DOI: 10.1186/s13008-018-0036-2] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/13/2018] [Indexed: 12/19/2022] Open
Abstract
Protein arginine methylation is a common post-translational modification where a methyl group is added onto arginine residues of a protein to alter detection by its binding partners or regulate its activity. It is known to be involved in many biological processes, such as regulation of signal transduction, transcription, facilitation of protein–protein interactions, RNA splicing and transport. The enzymes responsible for arginine methylation, protein arginine methyltransferases (PRMTs), have been shown to methylate or associate with important regulatory proteins of the cell cycle and DNA damage repair pathways, such as cyclin D1, p53, p21 and the retinoblastoma protein. Overexpression of PRMTs resulting in aberrant methylation patterns in cancers often correlates with poor recovery prognosis. This indicates that protein arginine methylation is also an important regulator of the cell cycle, and consequently a target for cancer regulation. The effect of protein arginine methylation on the cell cycle and how this emerging key player of cell cycle regulation may be used in therapeutic strategies for cancer are the focus of this review.
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Affiliation(s)
- Anita E Raposo
- School of Science and Health, Western Sydney University, Penrith, NSW 2751 Australia
| | - Sabine C Piller
- School of Science and Health, Western Sydney University, Penrith, NSW 2751 Australia
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235
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De Majo F, Calore M. Chromatin remodelling and epigenetic state regulation by non-coding RNAs in the diseased heart. Noncoding RNA Res 2018; 3:20-28. [PMID: 30159436 PMCID: PMC6084839 DOI: 10.1016/j.ncrna.2018.02.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 02/08/2018] [Accepted: 02/26/2018] [Indexed: 02/06/2023] Open
Abstract
Epigenetics refers to all the changes in phenotype and gene expression which are not due to alterations in the DNA sequence. These mechanisms have a pivotal role not only in the development but also in the maintenance during adulthood of a physiological phenotype of the heart. Because of the crucial role of epigenetic modifications, their alteration can lead to the arise of pathological conditions. Heart failure affects an estimated 23 million people worldwide and leads to substantial numbers of hospitalizations and health care costs: ischemic heart disease, hypertension, rheumatic fever and other valve diseases, cardiomyopathy, cardiopulmonary disease, congenital heart disease and other factors may all lead to heart failure, either alone or in concert with other risk factors. Epigenetic alterations have recently been included among these risk factors as they can affect gene expression in response to external stimuli. In this review, we provide an overview of all the major classes of chromatin remodellers, providing examples of how their disregulation in the adult heart alters specific gene programs with subsequent development of major cardiomyopathies. Understanding the functional significance of the different epigenetic marks as points of genetic control may be useful for developing promising future therapeutic tools.
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Affiliation(s)
| | - M. Calore
- Department of Cardiology, CARIM School for Cardiovascular Diseases, Maastricht University, 6229 ER Maastricht, The Netherlands
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236
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Wang K, Ye M. Enrichment of Methylated Peptides Using an Antibody-free Approach for Global Methylproteomics Analysis. ACTA ACUST UNITED AC 2018. [PMID: 29516485 DOI: 10.1002/cpps.49] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Protein methylation is receiving increasing attention for its important role in regulating diverse biological processes, including epigenetic regulation of gene transcription, RNA processing, DNA damage repair, and signal transduction. Proteome level analysis of protein methylation requires the enrichment of various forms of methylated peptides. Unfortunately, immunoaffinity purification can only enrich a subset of them due to the lack of pan-specific antibodies. Chromatography-based methods, however, can enrich methylated peptides in a global manner. Here we present a chromatography-based approach for highly efficient enrichment of methylated peptides. Protocols for the of high pH SCXtip preparation and methyl-peptide purification are described in detail. Key points such as cell culture in hM-SILAC medium and protein digestion by multiple endopeptidases are also presented. This technique allows the simultaneous analysis of both lysine and arginine methylation and improved performance for methyl-arginine identification. © 2018 by John Wiley & Sons, Inc.
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Affiliation(s)
- Keyun Wang
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, China.,University of Chinese Academy of Sciences, Beijing, China
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237
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Poulard C, Corbo L, Le Romancer M. Protein arginine methylation/demethylation and cancer. Oncotarget 2018; 7:67532-67550. [PMID: 27556302 PMCID: PMC5341895 DOI: 10.18632/oncotarget.11376] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 08/09/2016] [Indexed: 12/13/2022] Open
Abstract
Protein arginine methylation is a common post-translational modification involved in numerous cellular processes including transcription, DNA repair, mRNA splicing and signal transduction. Currently, there are nine known members of the protein arginine methyltransferase (PRMT) family, but only one arginine demethylase has been identified, namely the Jumonji domain-containing 6 (JMJD6). Although its demethylase activity was initially challenged, its dual activity as an arginine demethylase and a lysine hydroxylase is now recognized. Interestingly, a growing number of substrates for arginine methylation and demethylation play key roles in tumorigenesis. Though alterations in the sequence of these enzymes have not been identified in cancer, their overexpression is associated with various cancers, suggesting that they could constitute targets for therapeutic strategies. In this review, we present the recent knowledge of the involvement of PRMTs and JMJD6 in tumorigenesis.
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Affiliation(s)
- Coralie Poulard
- Department of Biochemistry and Molecular Biology, University of Southern California Norris Comprehensive Cancer Center, University of Southern California Los Angeles, Los Angeles, CA, USA.,Université de Lyon, F-69000 Lyon, France.,Université Lyon 1, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,Equipe Labellisée, La Ligue Contre le Cancer, 75013 Paris, France
| | - Laura Corbo
- Université de Lyon, F-69000 Lyon, France.,Université Lyon 1, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,Equipe Labellisée, La Ligue Contre le Cancer, 75013 Paris, France
| | - Muriel Le Romancer
- Université de Lyon, F-69000 Lyon, France.,Université Lyon 1, F-69000 Lyon, France.,Inserm U1052, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,CNRS UMR5286, Centre de Recherche en Cancérologie de Lyon, F-69000 Lyon, France.,Equipe Labellisée, La Ligue Contre le Cancer, 75013 Paris, France
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238
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The Fanconi anemia pathway controls oncogenic response in hematopoietic stem and progenitor cells by regulating PRMT5-mediated p53 arginine methylation. Oncotarget 2018; 7:60005-60020. [PMID: 27507053 PMCID: PMC5312365 DOI: 10.18632/oncotarget.11088] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Accepted: 07/26/2016] [Indexed: 01/26/2023] Open
Abstract
The Fanconi anemia (FA) pathway is involved in DNA damage and other cellular stress responses. We have investigated the role of the FA pathway in oncogenic stress response by employing an in vivo stress-response model expressing the Gadd45β-luciferase transgene. Using two inducible models of oncogenic activation (LSL-K-rasG12D and MycER), we show that hematopoietic stem and progenitor cells (HSPCs) from mice deficient for the FA core complex components Fanca or Fancc exhibit aberrant short-lived response to oncogenic insults. Mechanistic studies reveal that FA deficiency in HSPCs impairs oncogenic stress-induced G1 cell-cycle checkpoint, resulting from a compromised K-rasG12D-induced arginine methylation of p53 mediated by the protein arginine methyltransferase 5 (PRMT5). Furthermore, forced expression of PRMT5 in HSPCs from LSL-K-rasG12D/CreER-Fanca−/− mice prolongs oncogenic response and delays leukemia development in recipient mice. Our study defines an arginine methylation-dependent FA-p53 interplay that controls oncogenic stress response.
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239
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Agolini E, Dentici ML, Bellacchio E, Alesi V, Radio FC, Torella A, Musacchia F, Tartaglia M, Dallapiccola B, Nigro V, Digilio MC, Novelli A. Expanding the clinical and molecular spectrum of PRMT7 mutations: 3 additional patients and review. Clin Genet 2018; 93:675-681. [PMID: 28902392 DOI: 10.1111/cge.13137] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 08/31/2017] [Accepted: 09/06/2017] [Indexed: 01/07/2023]
Abstract
Protein arginine methyltransferase 7 (PRMT7) is a member of a family of enzymes that catalyze the transfer of methyl groups from S-adenosyl-l-methionine to nitrogen atoms on arginine residues. Arginine methylation is involved in multiple biological processes, such as signal transduction, mRNA splicing, transcriptional control, DNA repair, and protein translocation. Currently, 7 patients have been described harboring compound heterozygous or homozygous variants in the PRMT7 gene, causing a novel intellectual disability syndrome, known as SBIDDS syndrome (Short Stature, Brachydactyly, Intellectual Developmental Disability, and Seizures). We report on 3 additional patients from 2 consanguineous families with severe/moderate intellectual disability, short stature, brachydactyly and dysmorphisms. Exome sequencing revealed 2 novel homozygous mutations in PRMT7. Our findings expand the clinical and molecular spectrum of homozygous PRMT7 mutations, associated to the SBIDDS syndrome, showing a possible correlation between the type of mutation and the severity of the phenotype.
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Affiliation(s)
- E Agolini
- Laboratory of Medical Genetics, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - M L Dentici
- Medical Genetics Unit, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - E Bellacchio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - V Alesi
- Laboratory of Medical Genetics, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - F C Radio
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - A Torella
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.,Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | - F Musacchia
- Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | - M Tartaglia
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - B Dallapiccola
- Genetics and Rare Diseases Research Division, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - V Nigro
- Department of Biochemistry, Biophysics and General Pathology, Second University of Naples, Naples, Italy.,Telethon Institute of Genetics and Medicine (TIGEM), Pozzuoli, Italy
| | - M C Digilio
- Medical Genetics Unit, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - A Novelli
- Laboratory of Medical Genetics, Ospedale Pediatrico Bambino Gesù, Rome, Italy
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240
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Janardhan A, Kathera C, Darsi A, Ali W, He L, Yang Y, Luo L, Guo Z. Prominent role of histone lysine demethylases in cancer epigenetics and therapy. Oncotarget 2018; 9:34429-34448. [PMID: 30344952 PMCID: PMC6188137 DOI: 10.18632/oncotarget.24319] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2017] [Accepted: 12/04/2017] [Indexed: 12/14/2022] Open
Abstract
Protein methylation has an important role in the regulation of chromatin, gene expression and regulation. The protein methyl transferases are genetically altered in various human cancers. The enzymes that remove histone methylation have led to increased awareness of protein interactions as potential drug targets. Specifically, Lysine Specific Demethylases (LSD) removes methylated histone H3 lysine 4 (H3K4) and H3 lysine 9 (H3K9) through formaldehyde-generating oxidation. It has been reported that LSD1 and its downstream targets are involved in tumor-cell growth and metastasis. Functional studies of LSD1 indicate that it regulates activation and inhibition of gene transcription in the nucleus. Here we made a discussion about the summary of histone lysine demethylase and their functions in various human cancers.
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Affiliation(s)
- Avilala Janardhan
- The No. 7 People's Hospital of Changzhou, Changzhou, China.,Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Chandrasekhar Kathera
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Amrutha Darsi
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Wajid Ali
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Lingfeng He
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
| | - Yanhua Yang
- The No. 7 People's Hospital of Changzhou, Changzhou, China
| | - Libo Luo
- The No. 7 People's Hospital of Changzhou, Changzhou, China
| | - Zhigang Guo
- Jiangsu Key Laboratory for Molecular and Medical Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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241
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Protein arginine methyltransferase expression and activity during myogenesis. Biosci Rep 2018; 38:BSR20171533. [PMID: 29208765 PMCID: PMC6435512 DOI: 10.1042/bsr20171533] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 11/30/2017] [Accepted: 12/04/2017] [Indexed: 01/24/2023] Open
Abstract
Despite the emerging importance of protein arginine methyltransferases (PRMTs) in regulating skeletal muscle plasticity, PRMT biology during muscle development is complex and not completely understood. Therefore, our purpose was to investigate PRMT1, -4, and -5 expression and function in skeletal muscle cells during the phenotypic remodeling elicited by myogenesis. C2C12 muscle cell maturation, assessed during the myoblast (MB) stage, and during days 1, 3, 5, and 7 of differentiation, was employed as an in vitro model of myogenesis. We observed PRMT-specific patterns of expression and activity during myogenesis. PRMT4 and -5 gene expression was unchanged, while PRMT1 mRNA and protein content were significantly induced. Cellular monomethylarginines (MMAs) and symmetric dimethylarginines (SDMAs), indicative of global and type II PRMT activities, respectively, remained steady during development, while type I PRMT activity indicator asymmetric dimethylarginines (ADMAs) increased through myogenesis. Histone 4 arginine 3 (H4R3) and H3R17 contents were elevated coincident with the myonuclear accumulation of PRMT1 and -4. Collectively, this suggests that PRMTs are methyl donors throughout myogenesis and demonstrate specificity for their protein targets. Cells were then treated with TC-E 5003 (TC-E), a selective inhibitor of PRMT1 in order to specifically examine the enzymes role during myogenic differentiation. TC-E treated cells exhibited decrements in muscle differentiation, which were consistent with attenuated mitochondrial biogenesis and respiratory function. In summary, the present study increases our understanding of PRMT1, -4, and -5 biology during the plasticity of skeletal muscle development. Our results provide evidence for a role of PRMT1, via a mitochondrially mediated mechanism, in driving the muscle differentiation program.
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242
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Supekar S, Papageorgiou AC, Gemmecker G, Peltzer R, Johansson MP, Tripsianes K, Sattler M, Kaila VRI. Conformational Selection of Dimethylarginine Recognition by the Survival Motor Neuron Tudor Domain. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201708233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Shreyas Supekar
- Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
| | - Anna C. Papageorgiou
- CEITEC-Central European Institute of Technology; Masaryk University; Kamenice 5 62500 Brno Czech Republic
| | - Gerd Gemmecker
- Institute of Structural Biology; Helmholtz Zentrum München; Neuherberg Germany
| | - Raphael Peltzer
- Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
- Department of Chemistry and Centre for Theoretical and Computational Chemistry (CTCC); University of Oslo; P.O. Box 1033 Blindern 0315 Oslo Norway
| | - Mikael P. Johansson
- Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
- Department of Chemistry; University of Helsinki; P.O. Box 55 00014 Helsinki Finland
| | - Konstantinos Tripsianes
- CEITEC-Central European Institute of Technology; Masaryk University; Kamenice 5 62500 Brno Czech Republic
| | - Michael Sattler
- Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
- Institute of Structural Biology; Helmholtz Zentrum München; Neuherberg Germany
| | - Ville R. I. Kaila
- Department Chemie; Technische Universität München, TUM; Lichtenbergstraße 4 85747 Garching Germany
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243
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Supekar S, Papageorgiou AC, Gemmecker G, Peltzer R, Johansson MP, Tripsianes K, Sattler M, Kaila VRI. Conformational Selection of Dimethylarginine Recognition by the Survival Motor Neuron Tudor Domain. Angew Chem Int Ed Engl 2018; 57:486-490. [PMID: 28980372 DOI: 10.1002/anie.201708233] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Indexed: 11/07/2022]
Abstract
Tudor domains bind to dimethylarginine (DMA) residues, which are post-translational modifications that play a central role in gene regulation in eukaryotic cells. NMR spectroscopy and quantum calculations are combined to demonstrate that DMA recognition by Tudor domains involves conformational selection. The binding mechanism is confirmed by a mutation in the aromatic cage that perturbs the native recognition mode of the ligand. General mechanistic principles are delineated from the combined results, indicating that Tudor domains utilize cation-π interactions to achieve ligand recognition.
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Affiliation(s)
- Shreyas Supekar
- Department Chemie, Technische Universität München, TUM, Lichtenbergstraße 4, 85747, Garching, Germany
| | - Anna C Papageorgiou
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic
| | - Gerd Gemmecker
- Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Raphael Peltzer
- Department Chemie, Technische Universität München, TUM, Lichtenbergstraße 4, 85747, Garching, Germany.,Department of Chemistry and Centre for Theoretical and Computational Chemistry (CTCC), University of Oslo, P.O. Box 1033 Blindern, 0315, Oslo, Norway
| | - Mikael P Johansson
- Department Chemie, Technische Universität München, TUM, Lichtenbergstraße 4, 85747, Garching, Germany.,Department of Chemistry, University of Helsinki, P.O. Box 55, 00014, Helsinki, Finland
| | - Konstantinos Tripsianes
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5, 62500, Brno, Czech Republic
| | - Michael Sattler
- Department Chemie, Technische Universität München, TUM, Lichtenbergstraße 4, 85747, Garching, Germany.,Institute of Structural Biology, Helmholtz Zentrum München, Neuherberg, Germany
| | - Ville R I Kaila
- Department Chemie, Technische Universität München, TUM, Lichtenbergstraße 4, 85747, Garching, Germany
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244
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Tsai KD, Lee WX, Chen W, Chen BY, Chen KL, Hsiao TC, Wang SH, Lee YJ, Liang SY, Shieh JC, Lin TH. Upregulation of PRMT6 by LPS suppresses Klotho expression through interaction with NF-κB in glomerular mesangial cells. J Cell Biochem 2018; 119:3404-3416. [PMID: 29131380 DOI: 10.1002/jcb.26511] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2017] [Accepted: 11/09/2017] [Indexed: 01/13/2023]
Abstract
Lipopolysaccharide (LPS) released from gram-negative bacteria stimulates immune responses in infected cells. Epigenetic modifications such as DNA methylation and protein methylation modulate LPS-induced innate immune gene expressions. Expression of the Klotho protein decreased with LPS treatment in rats. In a cellular model, information regarding the effect of LPS on Klotho expression was meager. In the present study, we demonstrated that LPS triggered global DNA and protein methylation in glomerular mesangial MES-13 cells. LPS upregulated protein expressions of enzymes central to cellular methylation reactions, especially protein arginine methyltransferase 6 (PRMT6) in MES-13 cells. Expression of the Klotho protein was diminished by LPS and was restored by 5-Aza-2'-deoxycytidine (5-Aza-2'-dc), AMI-1, and ammonium pyrrolidinedithiocarbamate (PDTC), but not adenosine aldehyde (AdOx). NF-κB was identified as a substrate for arginine methylation and interacted with PRMT6 in MES-13 cells. Inhibition of PRMT activity by AMI-1 blocked LPS-induced NF-κB nuclear translocation in MES-13 cells. Our data indicate that NF-κB negatively regulated Klotho expression with an interaction with PRMT6, which was upregulated by LPS in MES-13 cells.
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Affiliation(s)
- Kuen-Daw Tsai
- Department of Internal Medicine, China Medical University Beigang Hospital, Beigang Township, Yunlin County, Taiwan, Republic of China.,Institute of Molecular Biology, National Chung Cheng University, Minhsiung Township, Chiayi County, Taiwan, Republic of China.,School of Chinese Medicine, College of Chinese Medicine, China Medical University, Taichung, Taiwan, Republic of China
| | - Wen-Xi Lee
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Wei Chen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Chia-Yi Christian Hospital, Chiayi, Taiwan, Republic of China
| | - Bo-Yu Chen
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Kuan-Lin Chen
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Tzu-Chia Hsiao
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Sue-Hong Wang
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Yi-Ju Lee
- Institute of Biochemistry, Microbiology and Immunology, Chung Shan Medical University, Taichung, Taiwan, Republic of China
| | - Shan-Yuan Liang
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Jia-Ching Shieh
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
| | - Ting-Hui Lin
- School of Biomedical Sciences, College of Medical Science and Technology, Chung Shan Medical University, Taichung, Taiwan, Republic of China.,Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan, Republic of China
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245
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The prognostic significance of protein arginine methyltransferase 6 expression in colon cancer. Oncotarget 2017; 9:9010-9020. [PMID: 29507670 PMCID: PMC5823663 DOI: 10.18632/oncotarget.23809] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 11/16/2017] [Indexed: 01/27/2023] Open
Abstract
Protein arginine methylation is involved in cellular differentiation and proliferation. Recently, aberrant expression of protein arginine methyltransferases, which are responsible for the methylation reaction, has been reported in various types of cancer. However, there is no clear evidence regarding the prognostic value of abnormal PRMT6 expression in colorectal cancer or the effect of PRMT6 regulation on CRC cells. We investigated the expression patterns of PRMT6 in patients with stage II and III CRC. We detected nuclear expression of PRMT6 in 23.7% of carcinoma samples by immunohistochemistry. Among the clinicopathological parameters, the ratio of poorly differentiated cancer cells was approximately two-fold higher in patients with PRMT6-positive disease than in those with PRMT6-negative disease (p = 0.002). Patients with PRMT6-positive CRC had a shorter disease-free survival than those with PRMT6-negative CRC in both univariate and multivariate analyses (p = 0.018 and p = 0.035, respectively). siRNA-mediated inhibition of PRMT6 expression in CRC cells induced p21WAF1/CIP1 overexpression and suppressed cell growth and colony-forming ability. Concomitantly, apoptosis was induced in PRMT6-suppressed CRC cells. These data suggest that PRMT6 can serve as a biomarker for unfavorable prognosis and as a therapeutic target in CRC.
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246
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徐 华, 徐 世, 磨 凯. [Transcription of protein arginine N-methyltransferase genes in mouse dorsal root ganglia following peripheral nerve injury]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2017; 37:1620-1625. [PMID: 29292255 PMCID: PMC6744029 DOI: 10.3969/j.issn.1673-4254.2017.12.10] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the changes in the transcription of protein arginine methylation enzyme family genes in the dorsal root ganglia (DRG) following peripheral nerve injury in mice. METHODS C57BL6 mouse models of neuropathic pain induced by peripheral nerve injury were established by bilateral L4 spinal nerve ligation (SNL). At 7 days after SNL or sham operation, the DRG tissue was collected for transcriptional analysis of 9 protein arginine methylation enzyme genes (Prmt1?3, Carm1, and Prmt5?9) using RNA?Seq to identify the differentially expressed genes in the injured DRGs. We also established mouse models of lateral L4 SNL and models of chronic constriction injury (CCI) of the sciatic nerve and tested the paw withdrawal frequency (PWF) in response to mechanical stimulation and paw withdrawal latency (PWL) in response to thermal stimulation on 0, 3, 7 and 14 days after SNL or CCI; the expressions of the differentially expressed genes in the injured DRGs were verified in the two models using RT?qPCR. RESULTS Among the 9 protein arginine methylation enzyme family genes that were tissue?specifically expressed in the DRG, Prmt2 and Prmt3 showed the highest and Prmt6 showed the lowest basal expression. Compared with the sham?operated mice group, the mice receiving SNL exhibited upregulated Carm1 gene transcription (by 1.7 folds) but downregulated Prmt5, Prmt8 and Prmt9 transcription in the injured DRG (Prmt8 gene showed the most significant down?regulation by 16.3 folds). In mouse models of SNL and CCI, Carm1 gene expression increased progressively with time while Prmt8 transcription was obviously lowered on days 3, 7 and 14 after the injury; the transcription levels of Prmt1, Prmt5 and Prmt9 presented with no significant changes following the injuries. Both SNL and CCI induced mechanical allodynia and thermal hypersensitivities in the mice shown by increased PWF and decreased PWL on days 3, 7 and 14 after the injuries. CONCLUSION Periphery nerve injury induces Carm1 upregulation and Prmt8 downregulation in the injured DRG in mice, which sheds light on new targets for treatment of neuropathic pain.
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Affiliation(s)
- 华丽 徐
- />南方医科大学珠江医院麻醉科,广东 广州 510282Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 世元 徐
- />南方医科大学珠江医院麻醉科,广东 广州 510282Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
| | - 凯 磨
- />南方医科大学珠江医院麻醉科,广东 广州 510282Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou 510282, China
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247
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Zhang M, Xu JY, Hu H, Ye BC, Tan M. Systematic Proteomic Analysis of Protein Methylation in Prokaryotes and Eukaryotes Revealed Distinct Substrate Specificity. Proteomics 2017; 18. [PMID: 29150981 DOI: 10.1002/pmic.201700300] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 10/25/2017] [Indexed: 11/07/2022]
Abstract
The studies of protein methylation mainly focus on lysine and arginine residues due to their diverse roles in essential cellular processes from gene expression to signal transduction. Nevertheless, atypical protein methylation occurring on amino acid residues, such as glutamine and glutamic acid, is largely neglected until recently. In addition, the systematic analysis for the distribution of methylation on different amino acids in various species is still lacking, which hinders our understanding of its functional roles. In this study, we deeply explored the methylated sites in three species Escherichia coli, Saccharomyces cerevisiae, and HeLa cells by employing MS-based proteomic approach coupled with heavy methyl SILAC method. We identify a total of 234 methylated sites on 187 proteins with high localization confidence, including 94 unreported methylated sites on nine different amino acid residues. KEGG and gene ontology analysis show the pathways enriched with methylated proteins are mainly involved in central metabolism for E. coli and S. cerevisiae, but related to spliceosome for HeLa cells. The analysis of methylation preference on different amino acids is conducted in three species. Protein N-terminal methylation is dominant in E. coli while methylated lysines and arginines are widely identified in S. cerevisiae and HeLa cells, respectively. To study whether some atypical protein methylation has biological relevance in the pathological process in mammalian cells, we focus on histone methylation in diet-induced obese (DIO) mouse. Two glutamate methylation sites showed statistical significance in DIO mice compared with chow-fed mice, suggesting their potential roles in diabetes and obesity. Together, these findings expanded the methylome database from microbes to mammals, which will benefit our further appreciation for the protein methylation as well as its possible functions on disease.
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Affiliation(s)
- Min Zhang
- The Chemical Proteomics Center and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Jun-Yu Xu
- The Chemical Proteomics Center and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,Lab of Biosystems and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Hao Hu
- The Chemical Proteomics Center and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Bang-Ce Ye
- Lab of Biosystems and Microanalysis, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai, China
| | - Minjia Tan
- The Chemical Proteomics Center and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China.,University of Chinese Academy of Sciences, Beijing, China
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248
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Deng W, Wang Y, Ma L, Zhang Y, Ullah S, Xue Y. Computational prediction of methylation types of covalently modified lysine and arginine residues in proteins. Brief Bioinform 2017; 18:647-658. [PMID: 27241573 DOI: 10.1093/bib/bbw041] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2016] [Indexed: 11/14/2022] Open
Abstract
Protein methylation is an essential posttranslational modification (PTM) mostly occurs at lysine and arginine residues, and regulates a variety of cellular processes. Owing to the rapid progresses in the large-scale identification of methylation sites, the available data set was dramatically expanded, and more attention has been paid on the identification of specific methylation types of modification residues. Here, we briefly summarized the current progresses in computational prediction of methylation sites, which provided an accurate, rapid and efficient approach in contrast with labor-intensive experiments. We collected 5421 methyllysines and methylarginines in 2592 proteins from the literature, and classified most of the sites into different types. Data analyses demonstrated that different types of methylated proteins were preferentially involved in different biological processes and pathways, whereas a unique sequence preference was observed for each type of methylation sites. Thus, we developed a predictor of GPS-MSP, which can predict mono-, di- and tri-methylation types for specific lysines, and mono-, symmetric di- and asymmetrical di-methylation types for specific arginines. We critically evaluated the performance of GPS-MSP, and compared it with other existing tools. The satisfying results exhibited that the classification of methylation sites into different types for training can considerably improve the prediction accuracy. Taken together, we anticipate that our study provides a new lead for future computational analysis of protein methylation, and the prediction of methylation types of covalently modified lysine and arginine residues can generate more useful information for further experimental manipulation.
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249
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Cleland TP, Schroeter ER, Feranec RS, Vashishth D. Peptide sequences from the first Castoroides ohioensis skull and the utility of old museum collections for palaeoproteomics. Proc Biol Sci 2017; 283:rspb.2016.0593. [PMID: 27306052 DOI: 10.1098/rspb.2016.0593] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Accepted: 05/19/2016] [Indexed: 11/12/2022] Open
Abstract
Vertebrate fossils have been collected for hundreds of years and are stored in museum collections around the world. These remains provide a readily available resource to search for preserved proteins; however, the vast majority of palaeoproteomic studies have focused on relatively recently collected bones with a well-known handling history. Here, we characterize proteins from the nasal turbinates of the first Castoroides ohioensis skull ever discovered. Collected in 1845, this is the oldest museum-curated specimen characterized using palaeoproteomic tools. Our mass spectrometry analysis detected many collagen I peptides, a peptide from haemoglobin beta, and in vivo and diagenetic post-translational modifications. Additionally, the identified collagen I sequences provide enough resolution to place C. ohioensis within Rodentia. This study illustrates the utility of archived museum specimens for both the recovery of preserved proteins and phylogenetic analyses.
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Affiliation(s)
- Timothy P Cleland
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
| | - Elena R Schroeter
- Department of Biological Sciences, North Carolina State University, Raleigh, NC 27695, USA
| | | | - Deepak Vashishth
- Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA
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Rengasamy M, Zhang F, Vashisht A, Song WM, Aguilo F, Sun Y, Li S, Zhang W, Zhang B, Wohlschlegel JA, Walsh MJ. The PRMT5/WDR77 complex regulates alternative splicing through ZNF326 in breast cancer. Nucleic Acids Res 2017; 45:11106-11120. [PMID: 28977470 PMCID: PMC5737218 DOI: 10.1093/nar/gkx727] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2017] [Accepted: 08/11/2017] [Indexed: 12/22/2022] Open
Abstract
We observed overexpression and increased intra-nuclear accumulation of the PRMT5/WDR77 in breast cancer cell lines relative to immortalized breast epithelial cells. Utilizing mass spectrometry and biochemistry approaches we identified the Zn-finger protein ZNF326, as a novel interaction partner and substrate of the nuclear PRMT5/WDR77 complex. ZNF326 is symmetrically dimethylated at arginine 175 (R175) and this modification is lost in a PRMT5 and WDR77-dependent manner. Loss of PRMT5 or WDR77 in MDA-MB-231 cells leads to defects in alternative splicing, including inclusion of A-T rich exons in target genes, a phenomenon that has previously been observed upon loss of ZNF326. We observed that the alternatively spliced transcripts of a subset of these genes, involved in proliferation and tumor cell migration like REPIN1/AP4, ST3GAL6, TRNAU1AP and PFKM are degraded upon loss of PRMT5. In summary, we have identified a novel mechanism through which the PRMT5/WDR77 complex maintains the balance between splicing and mRNA stability through methylation of ZNF326.
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Affiliation(s)
- Madhumitha Rengasamy
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Fan Zhang
- Department of Medicine, Division of Nephrology, Bioinformatics Laboratory, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Center for Life Sciences, School of Life Sciences and Technology, Harbin Institute of Technology, Harbin 150080, China
| | - Ajay Vashisht
- Departmentof Biological Chemistry and the Institute of Genomics and Proteomics, University of California, Los Angeles, CA 90095, USA
| | - Won-Min Song
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Francesca Aguilo
- Wallenberg Centre for Molecular Medicine, Department of Medical Biosciences, University of Umeå, Försörjningsvägen 19073, Umeå, Sweden
| | - Yifei Sun
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,The Mount Sinai Center for RNA Biology and Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - SiDe Li
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,The Mount Sinai Center for RNA Biology and Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Weijia Zhang
- Department of Medicine, Division of Nephrology, Bioinformatics Laboratory, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Bin Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - James A Wohlschlegel
- Departmentof Biological Chemistry and the Institute of Genomics and Proteomics, University of California, Los Angeles, CA 90095, USA
| | - Martin J Walsh
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,The Mount Sinai Center for RNA Biology and Medicine, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
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