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Manou M, Loupis T, Vrachnos DM, Katsoulas N, Theocharis S, Kanakoglou DS, Basdra EK, Piperi C, Papavassiliou AG. Enhanced Transcriptional Signature and Expression of Histone-Modifying Enzymes in Salivary Gland Tumors. Cells 2023; 12:2437. [PMID: 37887281 PMCID: PMC10604940 DOI: 10.3390/cells12202437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 10/06/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
Salivary gland tumors (SGTs) are rare and complex neoplasms characterized by heterogenous histology and clinical behavior as well as resistance to systemic therapy. Tumor etiology is currently under elucidation and an interplay of genetic and epigenetic changes has been proposed to contribute to tumor development. In this work, we investigated epigenetic regulators and histone-modifying factors that may alter gene expression and participate in the pathogenesis of SGT neoplasms. We performed a detailed bioinformatic analysis on a publicly available RNA-seq dataset of 94 ACC tissues supplemented with clinical data and respective controls and generated a protein-protein interaction (PPI) network of chromatin and histone modification factors. A significant upregulation of TP53 and histone-modifying enzymes SUV39H1, EZH2, PRMT1, HDAC8, and KDM5B, along with the upregulation of DNA methyltransferase DNMT3A and ubiquitin ligase UHRF1 mRNA levels, as well as a downregulation of lysine acetyltransferase KAT2B levels, were detected in ACC tissues. The protein expression of p53, SUV39H1, EZH2, and HDAC8 was further validated in SGT tissues along with their functional deposition of the repressive histone marks H3K9me3 and H3K27me3, respectively. Overall, this study is the first to detect a network of interacting proteins affecting chromatin structure and histone modifications in salivary gland tumor cells, further providing mechanistic insights in the molecular profile of SGTs that confer to altered gene expression programs.
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Affiliation(s)
- Maria Manou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.M.); (D.S.K.); (E.K.B.)
| | - Theodoros Loupis
- Haematology Research Laboratory, Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece; (T.L.); (D.M.V.)
| | - Dimitrios M. Vrachnos
- Haematology Research Laboratory, Clinical, Experimental Surgery and Translational Research Center, Biomedical Research Foundation, Academy of Athens, 11527 Athens, Greece; (T.L.); (D.M.V.)
| | - Nikolaos Katsoulas
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (N.K.); (S.T.)
| | - Stamatios Theocharis
- First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (N.K.); (S.T.)
| | - Dimitrios S. Kanakoglou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.M.); (D.S.K.); (E.K.B.)
| | - Efthimia K. Basdra
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.M.); (D.S.K.); (E.K.B.)
| | - Christina Piperi
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.M.); (D.S.K.); (E.K.B.)
| | - Athanasios G. Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (M.M.); (D.S.K.); (E.K.B.)
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Michmerhuizen NL, Ludwig ML, Birkeland AC, Nimmagadda S, Zhai J, Wang J, Jewell BM, Genouw D, Remer L, Kim D, Foltin SK, Bhangale A, Kulkarni A, Bradford CR, Swiecicki PL, Carey TE, Jiang H, Brenner JC. Small molecule profiling to define synergistic EGFR inhibitor combinations in head and neck squamous cell carcinoma. Head Neck 2022; 44:1192-1205. [PMID: 35224804 PMCID: PMC8986607 DOI: 10.1002/hed.27018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Revised: 11/18/2021] [Accepted: 02/17/2022] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Head and neck squamous cell carcinoma (HNSCC) is a debilitating disease with poor survival. Although epidermal growth factor receptor (EGFR)-targeting antibody cetuximab improves survival in some settings, responses are limited suggesting that alternative approaches are needed. METHODS We performed a high throughput drug screen to identify EGFR inhibitor-based synergistic combinations of clinically advanced inhibitors in models resistant to EGFR inhibitor monotherapies, and then performed downstream validation experiments on prioritized synergistic combinations. RESULTS From our screen, we re-discovered known synergistic EGFR inhibitor combinations with FGFR or IGF-1R inhibitors that were broadly effective and also discovered novel synergistic combinations with XIAP inhibitor and DNMT inhibitors that were effective in only a subset of models. CONCLUSIONS Conceptually, our data identify novel synergistic combinations that warrant evaluation in future studies, and suggest that some combinations, although highly synergistic, will require parallel companion diagnostic development to be effectively advanced in patients.
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Affiliation(s)
- Nicole L. Michmerhuizen
- Department of PharmacologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Megan L. Ludwig
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Program in Cellular and Molecular BiologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Andrew C. Birkeland
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Sai Nimmagadda
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Jingyi Zhai
- Department of BiostatisticsUniversity of Michigan School of Public HealthAnn ArborMichiganUSA
| | - Jiayu Wang
- Department of PharmacologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Brittany M. Jewell
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Dylan Genouw
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Lindsay Remer
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Daniel Kim
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Susan K. Foltin
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Apurva Bhangale
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Aditi Kulkarni
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Carol R. Bradford
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Rogel Cancer CenterUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Paul L. Swiecicki
- Department of Hematology and OncologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Rogel Cancer CenterUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Thomas E. Carey
- Department of PharmacologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Rogel Cancer CenterUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - Hui Jiang
- Department of BiostatisticsUniversity of Michigan School of Public HealthAnn ArborMichiganUSA
- Rogel Cancer CenterUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
| | - J. Chad Brenner
- Department of PharmacologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Department of Otolaryngology—Head and Neck SurgeryUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Program in Cellular and Molecular BiologyUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
- Rogel Cancer CenterUniversity of Michigan Medical SchoolAnn ArborMichiganUSA
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do Amaral-Silva GK, Morais TMDL, Wagner VP, Martins MD, Fregnani ER, Soares FA, Rocha AC, Pontes HR, Santos-Silva AR, Vargas PA. Expression of DNMTs and H3K9ac in Ameloblastoma and Ameloblastic Carcinoma. FRONTIERS IN ORAL HEALTH 2022; 2:751162. [PMID: 35048062 PMCID: PMC8757744 DOI: 10.3389/froh.2021.751162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Accepted: 09/14/2021] [Indexed: 12/13/2022] Open
Abstract
Objectives: DNA methyltransferases (DNMTs) and the histone modification H3K9ac are epigenetic markers. This study aimed to describe the immunohistochemical expression of DNMT1, DNMT3A, DNMT3B, and H3K9ac in the dental follicle (DF), ameloblastoma (AME), and ameloblastic carcinoma (AC), correlating these expressions with the recurrence and aggressive behavior in ameloblastoma. Study Design: Immunohistochemical reactions were performed in 10 human DFs, 38 ameloblastomas, and 6 AC samples. Another 59 ameloblastomas assembled in a tissue microarray were used to compare the immunoexpression with the clinical, radiographic, and histopathological characteristics and the presence of BRAFv600e mutation. Each slide was digitized as a high-resolution image and quantified by Aperio ScanScope Nuclear V9 software. All statistical analyzes were performed using GraphPad Prism statistical software. Results: DNMT3B expression was higher in ameloblastomas than in the DFs, while the AC overexpressed all proteins. The ameloblastomas with BRAFv600e mutation, vestibular/lingual, or vestibular/palatine bone cortical disruption and maxilla involvement showed DNMT1 overexpression, while recurrent cases had high DNMT3B levels. Conclusions: DNA methylation and histone modification might play a role in the development, clinical aggressiveness, and recurrence rates of ameloblastoma, such as the progression to AC. Further investigation about gene methylations in ameloblastomas is needed to better understand its relationship with aggressiveness and recurrence.
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Affiliation(s)
| | | | - Vivian Petersen Wagner
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Manoela Domingues Martins
- Department of Pathology, School of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | | | | | - André Caroli Rocha
- Medical School, Clinics Hospital, University of São Paulo, São Paulo, Brazil
| | - Helder Rabelo Pontes
- Service of Buccal Pathology, João de Barros Barreto University Hospital, Federal University of Pará, Belém, Brazil
| | - Alan Roger Santos-Silva
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
| | - Pablo Agustin Vargas
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
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Wang K, Liu Y, Lu G, Xiao J, Huang J, Lei L, Peng J, Li Y, Wei S. A functional methylation signature to predict the prognosis of Chinese lung adenocarcinoma based on TCGA. Cancer Med 2021; 11:281-294. [PMID: 34854250 PMCID: PMC8704183 DOI: 10.1002/cam4.4431] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 10/08/2021] [Accepted: 10/10/2021] [Indexed: 01/16/2023] Open
Abstract
Background Lung cancer is the leading cause of cancer morbidity and mortality worldwide, however, the individualized treatment is still unsatisfactory. DNA methylation can affect gene regulation and may be one of the most valuable biomarkers in predicting the prognosis of lung adenocarcinoma. This study was aimed to identify methylation CpG sites that may be used to predict lung adenocarcinoma prognosis. Methods The Cancer Genome Atlas (TCGA) database was used to detect methylation CpG sites associated with lung adenocarcinoma prognosis and construct a methylation signature model. Then, a Chinese cohort was carried out to estimate the association between methylation and lung adenocarcinoma prognosis. Biological function studies, including demethylation treatment, cell proliferative capacity, and gene expression changes in lung adenocarcinoma cell lines, were further performed. Results In the TCGA set, three methylation CpG sites were selected that were associated with lung adenocarcinoma prognosis (cg14517217, cg15386964, and cg18878992). The risk of mortality was increased in lung adenocarcinoma patients with the gradual increase level of methylation signature based on three methylation sites levels (HR = 45.30, 95% CI = 26.69–66.83; p < 0.001). The C‐statistic value increased to 0.77 when age, gender, and other clinical variables were added to the signature to prediction model. A similar situation was confirmed in Chinese lung adenocarcinoma cohort. In the biological function studies, the proliferative capacity of cell lines was inhibited when the cells were demethylated with 5‐aza‐2'‐deoxycytidine (5‐aza‐2dC). The mRNA and protein expression levels of SEPT9 and HIST1H2BH (cg14517217 and cg15386964) were downregulated with different concentrations of 5‐aza‐2dC treatment, while cg18878992 showed the opposite result. Conclusion This study is the first to develop a three‐CpG‐based model for lung adenocarcinoma, which is a practical and useful tool for prognostic prediction that has been validated in a Chinese population.
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Affiliation(s)
- Ke Wang
- Medical College, Hubei University of Arts and Science, Xiangyang, Hubei, China.,Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Ying Liu
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Guanzhong Lu
- Medical College, Hubei University of Arts and Science, Xiangyang, Hubei, China
| | - Jinrong Xiao
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Jiao Huang
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Lin Lei
- Department of Cancer Control, Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong, China
| | - Ji Peng
- Department of Cancer Control, Shenzhen Center for Chronic Disease Control, Shenzhen, Guangdong, China
| | - Yangkai Li
- Department of Thoracic Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
| | - Sheng Wei
- Department of Epidemiology and Biostatistics, Ministry of Education Key Laboratory of Environment and Health, School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei, China
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Zhao Q, Wang W, Li JX, Yuan P, Liu Y, Li Y, Wang L, Song L. The DNA cytosine-5-methyltransferase 3 (DNMT3) involved in regulation of CgIL-17 expression in the immune response of oyster Crassostrea gigas. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2021; 123:104092. [PMID: 33819545 DOI: 10.1016/j.dci.2021.104092] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 03/29/2021] [Accepted: 03/29/2021] [Indexed: 06/12/2023]
Abstract
DNA methyltransferase, a key enzyme mediating DNA methylation, is involved in numerous processes including genomic imprinting, X chromosome inactivation, transposable element suppression, and immune defense in vertebrates. In the present study, a DNA cytosine-5-methyltransferase 3 was identified from oyster Crassostrea gigas (designed as CgDNMT3). There were a PWWP domain, a PHD domain and a DNA-methylase domain in the deduced amino acid sequences of CgDNMT3, and the conserved motifs I, IV, VI, Ⅷ, IX and X were identified in its C-terminal catalytic DNA-methylase domain. The mRNA transcripts of CgDNMT3 were detected in haemocytes, mantle, gill, adductor muscle, digestive gland and labial palp, with higher expression level in haemocytes (6.54 folds of those in gill, p < 0.01). The expression level of CgDNMT3 mRNA in haemocytes increased significantly after LPS primed (2.87 folds of that in control group, p < 0.05) in vitro or Vibrio splendidus challenging (1.94 folds of that in control group, p < 0.05) in vivo. Immunocytochemical analysis revealed that CgDNMT3 protein was distributed mainly in cytoplasm and partial in nucleus of oyster haemocytes. After CgDNMT3 was transfected and expressed in HEK293T cells, the DNA 5-methylcytosine (5-mc) level in the transfected group was significantly increased, which was 1.22 folds (p < 0.05) of the pcDNA-3.1 group. The expressions of oyster CgIL17-1, CgIL17-2 and CgIL17-5 in haemocytes increased (13.05 folds, 4.78 folds and 9.41 folds of that in control group, respectively) at 12 h after V. splendidus challenging, but the increase were significantly inhibited when the oysters were pre-treated with DNA methyltransferase inhibitor 5-Azacytidine, which were 9 folds, 1.93 folds and 3.22 folds of that in control group, respectively. These results collectively suggested that CgDNMT3 was a conserved member of DNA methyltransferase 3 family in oyster, and participated in regulating the expression of cytokines during immune response.
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Affiliation(s)
- Qi Zhao
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Weilin Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Jia Xin Li
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Pei Yuan
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Yu Liu
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Yan Li
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Lingling Wang
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China
| | - Linsheng Song
- Liaoning Key Laboratory of Marine Animal Immunology, Dalian Ocean University, Dalian, 116023, China; Laboratory of Marine Fisheries Science and Food Production Process, Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266235, China; Liaoning Key Laboratory of Marine Animal Immunology and Disease Control, Dalian Ocean University, Dalian, 116023, China; Dalian Key Laboratory of Aquatic Animal Disease Prevention and Control, Dalian Ocean University, Dalian, 116023, China.
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Flausino CS, Daniel FI, Modolo F. DNA methylation in oral squamous cell carcinoma: from its role in carcinogenesis to potential inhibitor drugs. Crit Rev Oncol Hematol 2021; 164:103399. [PMID: 34147646 DOI: 10.1016/j.critrevonc.2021.103399] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 06/02/2021] [Accepted: 06/04/2021] [Indexed: 02/06/2023] Open
Abstract
DNA methylation is one of epigenetic changes most frequently studied nowadays, together with its relationship with oral carcinogenesis. A group of enzymes is responsible for methylation process, known as DNA methyltransferases (DNMT). Although essential during embryogenesis, DNA methylation pattern alterations, including global hypomethylation or gene promoter hypermethylation, can be respectively associated with chromosomal instability and tumor suppressor gene silencing. Higher expression of DNA methyltransferases is a common finding in oral cancer and may contribute to inactivation of important tumor suppressor genes, influencing development, progression, metastasis, and prognosis of the tumor. To control these alterations, inhibitor drugs have been developed as a way to regulate DNMT overexpression, and they are intended to be associated with ongoing chemo- and radiotherapy in oral cancer treatments. In this article, we aimed to highlight the current knowledge about DNA methylation in oral cancer, including main hyper/hypomethylated genes, DNMT expression and its inhibitor treatments.
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Affiliation(s)
| | - Filipe Ivan Daniel
- Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil.
| | - Filipe Modolo
- Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
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Mohammadzadeh N, Mosaffa F, Khadivi E, Jahangiri R, Jamialahmadi K. Increased Expression of DNA Methyltransferase 1 and 3B Correlates with Tumor Grade in Laryngeal Squamous Cell Carcinoma. PHARMACEUTICAL SCIENCES 2020. [DOI: 10.34172/ps.2020.86] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Background: DNA methyltransferase (DNMT) enzymes, encoded by DNMT1, DNMT3A andDNMT3B genes, play a major role in the development of cancers through aberrant promotermethylation. Due to little information about the biological and clinical significance of expressionchanges of these genes in Laryngeal Squamous Cell carcinoma (LSCC), the current study wasdesigned to evaluate the contribution of DNMTs expression as potential diagnostic biomarkersin progression of LSCC. Methods: DNMT1, DNMT3A and DNMT3B expressions in tumoral and normal tissues fromthirty-three LSCC patients were evaluated by relative comparative real-time PCR, prior toany therapeutic intervention. Relationship between genes expression and clinicopathologicalfeatures were also analyzed. Results: The mRNA expression levels of all three DNMTs (DNMT1, DNMT3A and DNMT3B)were significantly elevated in LSCC tumor specimens compared to that of non-tumor tissues(P<0.0001, P=0.011 and P<0.0001, respectively). The expression of DNMT1 and DNMT3Bwas strongly associated with histopathological tumor grade. Moreover, the mRNA expressionlevels of DNMT3A were significantly correlated with laryngopharyngeal reflux. No significantrelationships existed with other clinicopathological parameters. Conclusion: Data showed that the expression levels of DNMT1, DNMT3A and DNMT3Bmarkedly increased in LSCC tissues. DNMT1 and DNMT3B were mainly overexpressed in highgrade LSCC tumors, therefore, they may have a role in LSCC progression. It seems that thesegenes may serve as diagnostic biomarkers in development of LSCC.
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Affiliation(s)
- Nooshin Mohammadzadeh
- School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Mosaffa
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Ehsan Khadivi
- Sinus and Surgical Endoscopic Research Center, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Rosa Jahangiri
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Khadijeh Jamialahmadi
- Biotechnology Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
- Department of Medical Biotechnology and Nanotechnology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Lai C, Gao J, Zhu Z, Yuan J, Zhang W, Yang J. DNA methyltransferase expression and DNA hypomethylation status in human hepatocytes following trichloroacetic acid exposure. Biochem Biophys Res Commun 2019; 511:266-273. [PMID: 30777334 DOI: 10.1016/j.bbrc.2019.02.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 02/03/2019] [Indexed: 12/12/2022]
Abstract
Trichloroacetic acid (TCA) is one of the major metabolites of trichloroethylene (TCE) as the significant factor of environmental and occupational pollution. TCA has been shown to induce a series of epigenetic mutation in mouse liver. However, the epigenetic cytotoxicity of TCA is still in infancy. In this study, we explored the cellular biological characteristics, the genome DNA methylation status and the expression profile of DNA methyltransferases in human hepatic L-02 cells treated with TCA with certain time and dose effects. The cell cycle measured by flow cytometry revealed an increasing S + G2 (M) phase of TCA (0.9 mM 24 h, 48 h and 72 h) treated cells after a recovery day, and sub-G1 phase was not appeared. The levels of 5 -mC were decreased in TCA (0.9 mM 24 h and 72 h) treated cells by 5-mC immunolocalization process and HPCE (decreased from 27.2% to 50.1% respectively). Meanwhile, the mCpG% in normal L-02 cells and TCA (0.9 mM 48 h) treated cells was 79.6% ± 6.5% and 50.8% ± 3.8%, respectively (P < 0.05). It also revealed that treatment of L-02 cells with TCA induced decreased in DNMT1 and DNMT3a mRNA and protein levels with a time-dependent manner and a dose-response relationship, while DNMT3b had no obvious change. These results establish a link between DNA methyltransferases and Genome DNA hypomethylation, which is associated with TCA exposure.
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Affiliation(s)
- Caiyun Lai
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, 510632, PR China
| | - Jianji Gao
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, 510632, PR China
| | - Zhiliang Zhu
- Baoan District Center for Disease Control and Prevention, Shenzhen, Guangdong, 518101, PR China
| | - Jianhui Yuan
- Nanshan District Center for Disease Control and Prevention, Shenzhen, Guangdong, 518054, PR China
| | - Wenjuan Zhang
- Department of Public Health and Preventive Medicine, School of Medicine, Jinan University, Guangzhou, Guangdong, 510632, PR China.
| | - Jianping Yang
- Shenzhen Taike Test Co, LTD, Shenzhen, Guangdong, 518053, PR China.
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9
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de Freitas Filho SAJ, Servato JPS, de Sá RT, Siqueira CS, de Faria PR, Loyola AM, Cardoso SV. Evaluation of specific modified histones in lip carcinogenesis. Pathol Res Pract 2018; 214:876-880. [PMID: 29699903 DOI: 10.1016/j.prp.2018.04.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 04/12/2018] [Accepted: 04/12/2018] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Histones regulate chromatin density and therefore influence gene expression and cellular proliferation. These properties are modified by methylation, acetylation and phosphorylation of histones. The aim of this study was to investigate the variation of specific modified histones in actinic cheilitis (AC) and squamous cell carcinoma of the lip (SCCL). METHODS Samples of non-neoplastic tissue of the lip (NNTL, n = 9), AC (n = 33), and SCCL (n = 27) were submitted to immunohistochemistry to detect the modified histones H3K36me3, H3K9ac, H4K12ac, and H3S10 ph. RESULTS Reactivity for all of the modified histones was significantly decreased from NNTL to AC, but not from AC to SCCL. Dysplasia in AC or histological grade in SCCL were not related to the reactivity of any modified histones. CONCLUSIONS Histone modifications are related to initial actinic damage, but not to malignant transformation in the lip.
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Affiliation(s)
| | - João Paulo Silva Servato
- Laboratory of Biopathology, School of Dentistry, University of Uberaba (UNIUBE), Uberaba, MG, Brazil
| | - Rodrigo Tavares de Sá
- Area of Pathology, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | | | - Paulo Rogério de Faria
- Department of Morphology, Biomedical Science Institute, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Adriano Mota Loyola
- Area of Pathology, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil
| | - Sérgio Vitorino Cardoso
- Area of Pathology, School of Dentistry, Federal University of Uberlândia, Uberlândia, MG, Brazil.
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10
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Poitevin NA, Rodrigues MS, Weigert KL, Macedo CLR, Dos Santos RB. Actinic cheilitis: proposition and reproducibility of a clinical criterion. BDJ Open 2017; 3:17016. [PMID: 29607086 PMCID: PMC5842833 DOI: 10.1038/bdjopen.2017.16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Accepted: 06/13/2017] [Indexed: 11/17/2022] Open
Abstract
Objectives/Aims: The actinic cheilitis (AC) is a precancerous lip lesion seen as a consequence of chronic sun exposure. Clinically, the border between the lip’s skin and the semimucosa could be blurred; in the more aggressive cases, leucoplakia and ulcers also represent its clinical feature. It seems that no clinical criterion is universally accepted for this disease yet. Therefore, this study was carried out to make a proposition of a clinical score to actinic cheilitis (Grade I starting from dryness of vermilion to endured ulcers representing Grade IV) and to assess its reproducibility. Materials and Methods: Fifty subjects were assessed, most of whom were male, Caucasian farmers, with an average age of 46.12 (18–74) years. The obtained data were analysed by means of descriptive statistics and by Kappa test to assess the inter-examiners and the clinical Golden-Pattern concordance (95% CI). Results: During calibration, 15 patients were examined three times a week by each examiner (4) until Kappa test observed k=0.8 or more. In the main experiment, the inter-examiner concordance was classified between good (k=0.779; P<0.05) and very good (k=0.925; P<0.05) from the 35 examined subjects. With the Golden-Pattern, it was considered very good (k=0.812; P<0.05 to k=0.925; P<0.05). Discussion: Four examiners with different experiences could strongly suggest that after adequate calibration, it could be well applied by examiners with as much experience as a dental student. Conclusions: The authors concluded that the proposed classification was easily applied and had a very good reproducibility.
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Affiliation(s)
| | | | - Karen Loureiro Weigert
- School of Dentristy, Pontifical Catholic University of Rio Grande do Sul, Cachoeira do Sul, Rio Grande do Sul, Brazil
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11
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Chrun ES, Modolo F, Vieira D, Borges-Júnior Á, Castro RG, Daniel FI. Immunoexpression of HDAC1, HDAC2, and HAT1 in actinic cheilitis and lip squamous cell carcinoma. Oral Dis 2017; 23:505-510. [PMID: 28107582 DOI: 10.1111/odi.12641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2016] [Revised: 01/05/2017] [Accepted: 01/06/2017] [Indexed: 12/14/2022]
Abstract
BACKGROUND Acetylation and deacetylation are the most studied covalent histone modifications resulting in transcriptional regulation with histone deacetylases (HDAC) and histone acetyltransferases (HAT) as the main associated enzymes. These enzymes overexpression induces abnormal transcription of key genes that regulate important cellular functions, such as proliferation, cell cycle regulation, and apoptosis. Thus, the expression of different HATs and HDACs has been evaluated in various cancers. OBJECTIVE To investigate HDAC1, HDAC2 and HAT1 expression in lip squamous cell carcinoma (LSCC) and actinic cheilitis (AC) and to demonstrate their correlation with DNA metyltransferases (DNMTs). MATERIAL AND METHODS Thirty cases of lip squamous cell carcinoma (LSCC), thirty cases of actinic cheilitis (AC), and 28 cases of non-neoplastic epithelium as control were selected for immunohistochemical investigation. RESULTS Nuclear HDAC2 immunopositivity was significantly higher in AC (75.07% ± 29.70) when compared with LSCC (51.06% ± 39.02). HDAC1 and HAT1 nuclear immunostaining were higher in AC, with no statistical significance. When comparing data with our previous study, we found a positive correlation between HDAC1 X DNMT1/DNMT3b, HDAC2 X DNMT3b, and HAT1 X DNMT1/DNMT3b for certain studied groups. CONCLUSION This study showed higher levels of nuclear HDAC2 immunopositivity in AC, possibly indicating that this enzyme plays a key role in lip photocarcinogenesis early stages.
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Affiliation(s)
- E S Chrun
- Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - F Modolo
- Pathology Department and Dentistry Graduate Program, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Dsc Vieira
- Pathology Department, Federal University of Santa Catarina, Florianopolis, SC, Brazil
| | - Áls Borges-Júnior
- Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - R G Castro
- Dentistry Department, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil
| | - F I Daniel
- Pathology Department and Dentistry Graduate Program, Federal University of Santa Catarina, Florianopolis, SC, Brazil
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