1
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Ruszel KP, Zalewski DP, Stępniewski A, Gałkowski D, Bogucki J, Feldo M, Płachno BJ, Kocki J, Bogucka-Kocka A. Next-Generation Sequencing in the Assessment of the Transcriptomic Landscape of DNA Damage Repair Genes in Abdominal Aortic Aneurysm, Chronic Venous Disease and Lower Extremity Artery Disease. Int J Mol Sci 2022; 24:ijms24010551. [PMID: 36614026 PMCID: PMC9820637 DOI: 10.3390/ijms24010551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 12/31/2022] Open
Abstract
Vascular diseases are one of the most common causes of death and morbidity. Lower extremity artery disease (LEAD), abdominal aortic aneurysm (AAA) and chronic venous disease (CVD) belong to this group of conditions and exhibit various presentations and courses; thus, there is an urgent need for revealing new biomarkers for monitoring and potential treatment. Next-generation sequencing of mRNA allows rapid and detailed transcriptome analysis, allowing us to pinpoint the most pronounced differences between the mRNA expression profiles of vascular disease patients. Comparison of expression data of 519 DNA-repair-related genes obtained from mRNA next-generation sequencing revealed significant transcriptomic marks characterizing AAA, CVD and LEAD. Statistical, gene set enrichment analysis (GSEA), gene ontology (GO) and literature analyses were applied and highlighted many DNA repair and accompanying processes, such as cohesin functions, oxidative stress, homologous recombination, ubiquitin turnover, chromatin remodelling and DNA double-strand break repair. Surprisingly, obtained data suggest the contribution of genes engaged in the regulatory function of DNA repair as a key component that could be used to distinguish between analyzed conditions. DNA repair-related genes depicted in the presented study as dysregulated in AAA, CVD and LEAD could be utilized in the design of new biomarkers or therapies associated with these diseases.
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Affiliation(s)
- Karol P. Ruszel
- Department of Clinical Genetics, Chair of Medical Genetics, Medical University of Lublin, 11 Radziwiłłowska St., 20-080 Lublin, Poland
- Correspondence: ; Tel.: +48-81-448-6610
| | - Daniel P. Zalewski
- Chair and Department of Biology and Genetics, Medical University of Lublin, 4a Chodźki St., 20-093 Lublin, Poland
| | - Andrzej Stępniewski
- Ecotech Complex Analytical and Programme Centre for Advanced Environmentally Friendly Technologies, University of Marie Curie-Skłodowska, 39 Głęboka St., 20-612 Lublin, Poland
| | - Dariusz Gałkowski
- Department of Pathology and Laboratory Medicine, Rutgers-Robert Wood Johnson Medical School, One Robert Wood Johnson Place, New Brunswick, NJ 08903, USA
| | - Jacek Bogucki
- Chair and Department of Organic Chemistry, Medical University of Lublin, 4a Chodźki St., 20-093 Lublin, Poland
| | - Marcin Feldo
- Chair and Department of Vascular Surgery and Angiology, Medical University of Lublin, 11 Staszica St., 20-081 Lublin, Poland
| | - Bartosz J. Płachno
- Department of Plant Cytology and Embryology, Institute of Botany, Faculty of Biology, Jagiellonian University in Kraków, 9 Gronostajowa St., 30-387 Kraków, Poland
| | - Janusz Kocki
- Department of Clinical Genetics, Chair of Medical Genetics, Medical University of Lublin, 11 Radziwiłłowska St., 20-080 Lublin, Poland
| | - Anna Bogucka-Kocka
- Chair and Department of Biology and Genetics, Medical University of Lublin, 4a Chodźki St., 20-093 Lublin, Poland
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2
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Khan AA, Patel K, Patil S, Babu N, Mangalaparthi KK, Solanki HS, Nanjappa V, Kumari A, Manoharan M, Karunakaran C, Murugan S, Nair B, Kumar RV, Biswas M, Sidransky D, Gupta R, Gupta R, Khanna-Gupta A, Kumar P, Chatterjee A, Gowda H. Multi-Omics Analysis to Characterize Cigarette Smoke Induced Molecular Alterations in Esophageal Cells. Front Oncol 2020; 10:1666. [PMID: 33251127 PMCID: PMC7675040 DOI: 10.3389/fonc.2020.01666] [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: 07/29/2019] [Accepted: 07/28/2020] [Indexed: 12/29/2022] Open
Abstract
Though smoking remains one of the established risk factors of esophageal squamous cell carcinoma, there is limited data on molecular alterations associated with cigarette smoke exposure in esophageal cells. To investigate molecular alterations associated with chronic exposure to cigarette smoke, non-neoplastic human esophageal epithelial cells were treated with cigarette smoke condensate (CSC) for up to 8 months. Chronic treatment with CSC increased cell proliferation and invasive ability of non-neoplastic esophageal cells. Whole exome sequence analysis of CSC treated cells revealed several mutations and copy number variations. This included loss of high mobility group nucleosomal binding domain 2 (HMGN2) and a missense variant in mediator complex subunit 1 (MED1). Both these genes play an important role in DNA repair. Global proteomic and phosphoproteomic profiling of CSC treated cells lead to the identification of 38 differentially expressed and 171 differentially phosphorylated proteins. Bioinformatics analysis of differentially expressed proteins and phosphoproteins revealed that most of these proteins are associated with DNA damage response pathway. Proteomics data revealed decreased expression of HMGN2 and hypophosphorylation of MED1. Exogenous expression of HMGN2 and MED1 lead to decreased proliferative and invasive ability of smoke exposed cells. Immunohistochemical labeling of HMGN2 in primary ESCC tumor tissue sections (from smokers) showed no detectable expression while strong to moderate staining of HMGN2 was observed in normal esophageal tissues. Our data suggests that cigarette smoke perturbs expression of proteins associated with DNA damage response pathways which might play a vital role in development of ESCC.
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Affiliation(s)
- Aafaque Ahmad Khan
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Cell Biology Program, The Hospital for Sick Children, Toronto, ON, Canada
| | - Krishna Patel
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - Shankargouda Patil
- Division of Oral Pathology, Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia.,Department of Medical Biotechnologies, School of Dental Medicine, University of Siena, Siena, Italy
| | - Niraj Babu
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Manipal Academy of Higher Education, Manipal, India
| | - Kiran K Mangalaparthi
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | | | | | | | | | | | | | - Bipin Nair
- Amrita School of Biotechnology, Amrita Vishwa Vidyapeetham, Kollam, India
| | - Rekha V Kumar
- Department of Pathology, Kidwai Memorial Institute of Oncology, Bangalore, India
| | - Manjusha Biswas
- Department of Molecular Pathology, Mitra Biotech, Bangalore, India
| | - David Sidransky
- Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Ravi Gupta
- Medgenome Labs Pvt. Ltd., Bangalore, India
| | | | | | - Prashant Kumar
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Manipal Academy of Higher Education, Manipal, India
| | - Aditi Chatterjee
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Manipal Academy of Higher Education, Manipal, India
| | - Harsha Gowda
- Institute of Bioinformatics, International Technology Park, Bangalore, India.,Manipal Academy of Higher Education, Manipal, India.,Genetics and Computational Biology, QIMR Berghofer Medical Research Institute, Brisbane, QLD, Australia
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3
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Bin-Alee F, Arayataweegool A, Buranapraditkun S, Mahattanasakul P, Tangjaturonrasme N, Hirankarn N, Mutirangura A, Kitkumthorn N. Transcriptomic analysis of peripheral blood mononuclear cells in head and neck squamous cell carcinoma patients. Oral Dis 2020; 27:1394-1402. [PMID: 32892371 DOI: 10.1111/odi.13639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/31/2020] [Accepted: 08/28/2020] [Indexed: 12/24/2022]
Abstract
OBJECTIVES To investigate the gene expression profile of peripheral blood mononuclear cells (PBMCs) from head and neck squamous cell carcinoma (HNSCC), including oral cancer (OC) and oropharyngeal cancer (OPC) patients, and compare them with healthy controls (HC). MATERIALS AND METHODS Transcriptomic analysis of PBMCs was performed by RNA-sequencing. The upregulated candidate genes were selected for validation by quantitative real-time polymerase chain reaction (qPCR). In addition, related plasma protein levels were determined by enzyme-linked immunosorbent assay (ELISA). RESULTS Three significantly upregulated genes, including high mobility group nucleosomal binding domain 2 (HMGN2), folate receptor gamma (FOLR3), and amphiregulin (AREG), were selected. In the first cohort, the results showed that only HMGN2 expression was significantly increased in OC patients. In the larger sample size, the overall results demonstrated that HMGN2 expression had a tendency to increase in both OC and OPC patients compared with HC. Interestingly, the plasma HMGN2 (HMG-17) protein level exhibited the same trend as that observed at the transcriptional level. CONCLUSION HMGN2 expression and plasma HMG-17 (HMGN2 protein) were increased in both cancer patients compared with HC. This gene may be important for further functional studies in the PBMCs of HNSCC patients.
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Affiliation(s)
- Fardeela Bin-Alee
- Department of Anatomy, Faculty of Medicine, Center of Excellence in Molecular Genetics of Cancer and Human Diseases, Chulalongkorn University, Bangkok, Thailand.,Program of Medical Science, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Areeya Arayataweegool
- Department of Anatomy, Faculty of Medicine, Center of Excellence in Molecular Genetics of Cancer and Human Diseases, Chulalongkorn University, Bangkok, Thailand
| | - Supranee Buranapraditkun
- Department of Medicine, Division of Allergy and Clinical Immunology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,King Chulalongkorn Memorial Hospital, Bangkok, Thailand.,Center of Excellence in Vaccine Research and Development (Chula Vaccine Research Center- Chula VRC), Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Patnarin Mahattanasakul
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.,Department of Otolaryngology, Head and Neck Surgery, King Chulalongkorn Memorial Hospital, Thai Red Cross Society, Bangkok, Thailand
| | - Napadon Tangjaturonrasme
- Department of Otolaryngology, Head and Neck Surgery, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Nattiya Hirankarn
- Center of Excellence in Immunology and Immune-Mediated Diseases, Chulalongkorn University, Bangkok, Thailand.,Immunology Unit, Department of Microbiology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Apiwat Mutirangura
- Department of Anatomy, Faculty of Medicine, Center of Excellence in Molecular Genetics of Cancer and Human Diseases, Chulalongkorn University, Bangkok, Thailand
| | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
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4
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Biological Functions of HMGN Chromosomal Proteins. Int J Mol Sci 2020; 21:ijms21020449. [PMID: 31936777 PMCID: PMC7013550 DOI: 10.3390/ijms21020449] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/02/2020] [Accepted: 01/08/2020] [Indexed: 12/14/2022] Open
Abstract
Chromatin plays a key role in regulating gene expression programs necessary for the orderly progress of development and for preventing changes in cell identity that can lead to disease. The high mobility group N (HMGN) is a family of nucleosome binding proteins that preferentially binds to chromatin regulatory sites including enhancers and promoters. HMGN proteins are ubiquitously expressed in all vertebrate cells potentially affecting chromatin function and epigenetic regulation in multiple cell types. Here, we review studies aimed at elucidating the biological function of HMGN proteins, focusing on their possible role in vertebrate development and the etiology of disease. The data indicate that changes in HMGN levels lead to cell type-specific phenotypes, suggesting that HMGN optimize epigenetic processes necessary for maintaining cell identity and for proper execution of specific cellular functions. This manuscript contains tables that can be used as a comprehensive resource for all the English written manuscripts describing research aimed at elucidating the biological function of the HMGN protein family.
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5
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Amberg N, Sotiropoulou PA, Heller G, Lichtenberger BM, Holcmann M, Camurdanoglu B, Baykuscheva-Gentscheva T, Blanpain C, Sibilia M. EGFR Controls Hair Shaft Differentiation in a p53-Independent Manner. iScience 2019; 15:243-256. [PMID: 31082735 PMCID: PMC6515155 DOI: 10.1016/j.isci.2019.04.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/15/2019] [Accepted: 04/15/2019] [Indexed: 12/31/2022] Open
Abstract
Epidermal growth factor receptor (EGFR) signaling controls skin development and homeostasis in mice and humans, and its deficiency causes severe skin inflammation, which might affect epidermal stem cell behavior. Here, we describe the inflammation-independent effects of EGFR deficiency during skin morphogenesis and in adult hair follicle stem cells. Expression and alternative splicing analysis of RNA sequencing data from interfollicular epidermis and outer root sheath indicate that EGFR controls genes involved in epidermal differentiation and also in centrosome function, DNA damage, cell cycle, and apoptosis. Genetic experiments employing p53 deletion in EGFR-deficient epidermis reveal that EGFR signaling exhibits p53-dependent functions in proliferative epidermal compartments, as well as p53-independent functions in differentiated hair shaft keratinocytes. Loss of EGFR leads to absence of LEF1 protein specifically in the innermost epithelial hair layers, resulting in disorganization of medulla cells. Thus, our results uncover important spatial and temporal features of cell-autonomous EGFR functions in the epidermis.
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Affiliation(s)
- Nicole Amberg
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria
| | - Panagiota A Sotiropoulou
- Interdisciplinary Research Institute (IRIBHM), Université Libre Bruxelles, Bruxelles 1070, Belgium
| | - Gerwin Heller
- Department of Medicine I, Comprehensive Cancer Center, Clinical Division of Oncology, Medical University of Vienna, Vienna 1090, Austria
| | - Beate M Lichtenberger
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria
| | - Martin Holcmann
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria
| | - Bahar Camurdanoglu
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria
| | - Temenuschka Baykuscheva-Gentscheva
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria
| | - Cedric Blanpain
- Interdisciplinary Research Institute (IRIBHM), Université Libre Bruxelles, Bruxelles 1070, Belgium; WELBIO, Interdisciplinary Research Institute (IRIBHM), Université Libre Bruxelles, Bruxelles 1070, Belgium
| | - Maria Sibilia
- Institute of Cancer Research, Department of Internal Medicine I, Comprehensive Cancer Center, Medical University of Vienna, Vienna 1090, Austria.
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6
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He B, Deng T, Zhu I, Furusawa T, Zhang S, Tang W, Postnikov Y, Ambs S, Li CC, Livak F, Landsman D, Bustin M. Binding of HMGN proteins to cell specific enhancers stabilizes cell identity. Nat Commun 2018; 9:5240. [PMID: 30532006 PMCID: PMC6286339 DOI: 10.1038/s41467-018-07687-9] [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: 05/14/2018] [Accepted: 11/15/2018] [Indexed: 01/10/2023] Open
Abstract
The dynamic nature of the chromatin epigenetic landscape plays a key role in the establishment and maintenance of cell identity, yet the factors that affect the dynamics of the epigenome are not fully known. Here we find that the ubiquitous nucleosome binding proteins HMGN1 and HMGN2 preferentially colocalize with epigenetic marks of active chromatin, and with cell-type specific enhancers. Loss of HMGNs enhances the rate of OSKM induced reprogramming of mouse embryonic fibroblasts (MEFs) into induced pluripotent stem cells (iPSCs), and the ASCL1 induced conversion of fibroblast into neurons. During transcription factor induced reprogramming to pluripotency, loss of HMGNs accelerates the erasure of the MEF-specific epigenetic landscape and the establishment of an iPSCs-specific chromatin landscape, without affecting the pluripotency potential and the differentiation potential of the reprogrammed cells. Thus, HMGN proteins modulate the plasticity of the chromatin epigenetic landscape thereby stabilizing, rather than determining cell identity. HMGN1 and HMGN2 are ubiquitous nucleosome binding proteins. Here the authors provide evidence that HMGN proteins preferentially localize to chromatin regulatory sites to modulate the plasticity of the epigenetic landscape, proposing that HGMNs stabilize, rather than determine, cell identity.
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Affiliation(s)
- Bing He
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Tao Deng
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Iris Zhu
- Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Takashi Furusawa
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Shaofei Zhang
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Wei Tang
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Yuri Postnikov
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Stefan Ambs
- Laboratory of Human Carcinogenesis, Center for Cancer Research, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Caiyi Cherry Li
- Laboratory of Genomic Integrity, Center for Cancer Research National Cancer Institute National Institutes of Health, Bethesda, MD, 20892, USA
| | - Ferenc Livak
- Laboratory of Genomic Integrity, Center for Cancer Research National Cancer Institute National Institutes of Health, Bethesda, MD, 20892, USA
| | - David Landsman
- Computational Biology Branch, National Center for Biotechnology Information, National Library of Medicine, National Institutes of Health, Bethesda, MD, 20892, USA
| | - Michael Bustin
- Protein Section, Laboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, 20892, USA.
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7
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Fan B, Shi S, Shen X, Yang X, Liu N, Wu G, Guo X, Huang N. Effect of HMGN2 on proliferation and apoptosis of MCF-7 breast cancer cells. Oncol Lett 2018; 17:1160-1166. [PMID: 30655878 PMCID: PMC6312954 DOI: 10.3892/ol.2018.9668] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 10/16/2018] [Indexed: 11/28/2022] Open
Abstract
We investigated the effect of high mobility group protein N2 (HMGN2) on the proliferation and apoptosis of the human MCF-7 breast cancer cell line, and its effect on tumor growth in a subcutaneous heterotopic transplantation tumor model of breast cancer. The cell viability assay was used to verify the effect of the recombinant human HMGN2 on MCF-7 cell proliferation. The Transwell chamber assay was used to verify the effect of HMGN2 on MCF-7 cell migration. Flow cytometry and Hoechst staining were used to detect the effect of HMGN2 on MCF-7 cell apoptosis. MCF-7 was injected to establish a subcutaneous heterotopic transplantation tumor model of breast cancer in nude mice. The size, weight and volume of tumor in each group were compared after the administration of different concentrations of HMGN2 solution around the tumor tissue at day 1, 3, 5 and 7. The tumor tissue was removed and cut into sections, and the apoptotic cells in tumors of nude mice were detected by a TUNEL kit. The CCK-8 assay showed that HMGN2 at different concentrations inhibited the proliferation of the MCF-7 breast cancer cells, and the proliferation of MCF-7 cells were significantly inhibited when the concentration of HMGN2 reached 3 µg/ml (P<0.01). The Transwell chamber assay showed that 3 µg/ml of HMGN2 significantly decreased the migration capacity of MCF-7 cells (P<0.01). Flow cytometry and Hoechst staining showed that 3 µg/ml of HMGN2 significantly increased apoptosis of MCF-7 cells (P<0.01). After the nude mouse model of breast cancer was established, HMGN2 at different concentrations was injected around the tumor tissue at day 1, 3, 5 and 7. We demonstrated that the growth of breast cancer was significantly inhibited when the concentration of HMGN2 reached 15 µg/ml. TUNEL staining showed that the number of apoptotic cells in the 15 µg/ml dose group was significantly higher than that in the control group (P<0.01). Therefore, in vitro and in vivo experiments proved that recombinant human HMGN2 could significantly inhibit the proliferation and migration of breast cancer cells, which increased the apoptosis of breast cancer cells and exerted anti-breast cancer effects, which enriched our understanding of the biological roles of HMGN2.
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Affiliation(s)
- Bo Fan
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China.,Department of Pathophysiology, Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Sifeng Shi
- Department of Orthopedics, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu 221000, P.R. China
| | - Xiaofei Shen
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaolong Yang
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Na Liu
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Guixia Wu
- Department of Physiology, Xinjiang Medical University, Urumqi, Xinjiang Uygur Autonomous Region 830011, P.R. China
| | - Xiaojuan Guo
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ning Huang
- Department of Pathophysiology, Research Unit of Infection and Immunity, West China College of Basic and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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8
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Li Q, Chen J, Li X, Cui B, Fan Y, Geng N, Chen Q, Zhang P, Feng Y. Increased expression of high-mobility group nucleosomal-binding domain 2 protein in various tumor cell lines. Oncol Lett 2018. [PMID: 29541221 DOI: 10.3892/ol.2018.7898] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
High mobility group nucleosomal-binding domain 2 (HMGN2) is an abundant non-histone nuclear protein of vertebrates and invertebrates. The aim of the present study was to characterize the endogenous expression of HMGN2 in various types of tumor cell. Western blotting was performed to analyze HMGN2 expression in the following tumor cell lines: H1975, HSC-4, MDA-MB-468, MDA-MB-231, SCC-25 and THP-1. Periodontal ligament cells (PDLCs) were included as a noncancerous control. HMGN2 was detected in human oral squamous cell carcinoma tissues by immunohistochemical analysis. The results demonstrated that the expression of HMGN2 was increased in the majority of tumor cell lines, particularly MDA-MB-468 and THP-1 cells, compared with PDLCs. The expression of HMGN2 in oral squamous cell carcinoma tissue was significantly increased compared with the expression in normal tissue. Furthermore, the expression of HMGN2 in metastatic oral squamous cell carcinoma tissues was increased compared with that in its non-metastatic counterpart. These results indicated that HMGN2 may serve an important function in the growth and metastasis of tumor cells.
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Affiliation(s)
- Qian Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Jiao Chen
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaoying Li
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Bomiao Cui
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yaping Fan
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ning Geng
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Qianming Chen
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ping Zhang
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Yun Feng
- State Key Laboratory of Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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9
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Reeves R. High mobility group (HMG) proteins: Modulators of chromatin structure and DNA repair in mammalian cells. DNA Repair (Amst) 2015; 36:122-136. [PMID: 26411874 DOI: 10.1016/j.dnarep.2015.09.015] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
It has been almost a decade since the last review appeared comparing and contrasting the influences that the different families of High Mobility Group proteins (HMGA, HMGB and HMGN) have on the various DNA repair pathways in mammalian cells. During that time considerable progress has been made in our understanding of how these non-histone proteins modulate the efficiency of DNA repair by all of the major cellular pathways: nucleotide excision repair, base excision repair, double-stand break repair and mismatch repair. Although there are often similar and over-lapping biological activities shared by all HMG proteins, members of each of the different families appear to have a somewhat 'individualistic' impact on various DNA repair pathways. This review will focus on what is currently known about the roles that different HMG proteins play in DNA repair processes and discuss possible future research areas in this rapidly evolving field.
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Affiliation(s)
- Raymond Reeves
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA 99164-4660, USA.
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10
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Zheng S, Ren L, Li H, Shen X, Yang X, Li N, Wang X, Guo X, Wang X, Huang N. High-mobility group nucleosome-binding domain 2 protein inhibits the invasion of Klebsiella pneumoniae into mouse lungs in vivo. Mol Med Rep 2015; 12:1279-85. [PMID: 25760831 DOI: 10.3892/mmr.2015.3464] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Accepted: 01/29/2015] [Indexed: 11/05/2022] Open
Abstract
Since bacterial invasion into host cells is a critical step in the infection process and the predominance of multiple-antibiotic-resistant Klebsiella (K.) pneumoniae strains, using molecular agents to interfere with K. pneumoniae invasion is an attractive approach for the prevention of infection and suppress the immune inflammatory response. In previous studies by our group, high-mobility group nucleosome-binding domain 2 (HMGN2) protein was shown to exhibit anti-bacterial activity in vitro. The objective of the present study was to investigate the effects of HMGN2 protein on the invasion of K. pneumoniae 03183 in vivo. The results showed that pre-treatment with 128 µg/ml HMGN2 significantly reduced K. pneumoniae 03183 invasion into mouse lungs and increased the mRNA expression of CXCL1 and LCN2 within 2 h. Immunohistochemical staining showed that F-actin expression was significantly decreased, and fluorescence microscopy and western blot analysis further demonstrated that HMGN2 significantly blocked K. pneumoniae 03183-induced actin polymerization. These changes implied that HMGN2 may provide protection against K. pneumoniae 03183 infection in vivo.
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Affiliation(s)
- Shuang Zheng
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Laibin Ren
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Heng Li
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaofei Shen
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaolong Yang
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Na Li
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xinyuan Wang
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaojuan Guo
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Xiaoying Wang
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Ning Huang
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan 610041, P.R. China
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11
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Liu X, Dong X, Zhang Y, Zhang P, Li X, Chen S, Feng Y. [Inhibitory effects of high mobility group chromosomal protein N2 on human tongue carcinoma transplanted in nude mice]. HUA XI KOU QIANG YI XUE ZA ZHI = HUAXI KOUQIANG YIXUE ZAZHI = WEST CHINA JOURNAL OF STOMATOLOGY 2014; 32:5-8. [PMID: 24665631 PMCID: PMC7041044 DOI: 10.7518/hxkq.2014.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 06/10/2013] [Revised: 10/25/2013] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To evaluate the inhibitory effect of high mobility group chromosomal protein N2 (HMGN2) on human tongue carcinoma tumor in nude mice. METHODS A transplantation tumor model in nude mice was constructed by injecting Tca8113 cells. After a week, negative control groups, masculine control groups, and HMGN2 groups were established. Cell culture of the three groups were separately injected with washing buffer II, cis-dichlorodiamineplatinum (DDP), and HMGN2 protein. The tumors were moved after four treatments, and then analyzed by hematoxylin-eosin (HE) staining. RESULTS A transplanted tumor model was established successfully. The volumes of HMGN2 groups and masculine control groups were smaller than those of the negative groups. Mouse weight did not differ among the three groups. Average tumor weight of the negative group was (0.38 +/- 0.19)g, that of the HMGN2 group was (0.21 +/- 0.15)g, and that of the DDP group was (0.23 +/- 0.16)g. These factors indicated no statistically significant difference among the three groups. The tumor inhibitory rate of HMGN2 group was 45.71%, and that of the positive group was 39.44%. Based on evaluation by naked eye, the tumor in the negative group was larger than that in other groups. In addition, cell necrosis was observed during HE staining. CONCLUSION HMGN2 could significantly inhibit growth of the transplanted tumor in nude mice.
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Postnikov YV, Furusawa T, Haines DC, Factor VM, Bustin M. Loss of the nucleosome-binding protein HMGN1 affects the rate of N-nitrosodiethylamine-induced hepatocarcinogenesis in mice. Mol Cancer Res 2014; 12:82-90. [PMID: 24296759 PMCID: PMC3905959 DOI: 10.1158/1541-7786.mcr-13-0392] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
UNLABELLED We report that HMGN1, a nucleosome-binding protein that affects chromatin structure and function, affects the growth of N-nitrosodiethylamine (DEN)-induced liver tumors. Following a single DEN injection at 2 weeks of age, Hmgn1(tm1/tm1) mice, lacking the nucleosome-binding domain of HMGN1, had earlier signs of liver tumorigenesis than their Hmgn1(+/+) littermates. Detailed gene expression profiling revealed significant differences between DEN-injected and control saline-injected mice, but only minor differences between the injected Hmgn1(tm1/tm1) mice and their Hmgn1(+/+) littermates. Pathway analysis revealed that the most significant process affected by loss of HMGN1 involves the lipid/sterol metabolic pathway. Our study indicates that in mice, loss of HMGN1 leads to transcription changes that accelerate the progression of DEN-induced hepatocarcinogenesis, without affecting the type of tumors or the final total tumor burden of these mice. IMPLICATIONS Loss of HMGN1 leads to accelerated progression of DEN-induced hepatocarcinogenesis in mice.
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Hengeveld RCC, Hertz NT, Vromans MJM, Zhang C, Burlingame AL, Shokat KM, Lens SMA. Development of a chemical genetic approach for human aurora B kinase identifies novel substrates of the chromosomal passenger complex. Mol Cell Proteomics 2012; 11:47-59. [PMID: 22267324 DOI: 10.1074/mcp.m111.013912] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
To understand how the chromosomal passenger complex ensures chromosomal stability, it is crucial to identify its substrates and to find ways to specifically inhibit the enzymatic core of the complex, Aurora B. We therefore developed a chemical genetic approach to selectively inhibit human Aurora B. By mutating the gatekeeper residue Leu-154 in the kinase active site, the ATP-binding pocket was enlarged, but kinase function was severely disrupted. A unique second site suppressor mutation was identified that rescued kinase activity in the Leu-154 mutant and allowed the accommodation of bulky N(6)-substituted adenine analogs. Using this analog-sensitive Aurora B kinase, we found that retention of the chromosomal passenger complex at the centromere depends on Aurora B kinase activity. Furthermore, analog-sensitive Aurora B was able to use bulky ATPγS analogs and could thiophosphorylate multiple proteins in cell extracts. Utilizing an unbiased approach for kinase substrate mapping, we identified several novel substrates of Aurora B, including the nucleosomal-binding protein HMGN2. We confirmed that HMGN2 is a bona fide Aurora B substrate in vivo and show that its dynamic association to chromatin is controlled by Aurora B.
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Affiliation(s)
- Rutger C C Hengeveld
- Department of Medical Oncology, University Medical Center, 3584 CG Utrecht, The Netherlands
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Cao Y, Wu G, Fan B, Zheng F, Gao X, Liu N, Liu X, Huang N. High mobility group nucleosomal binding domain 2 protein protects bladder epithelial cells from Klebsiella pneumoniae invasion. Biol Pharm Bull 2011; 34:1065-71. [PMID: 21720014 DOI: 10.1248/bpb.34.1065] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Due to the predominance of multiple-antibiotic-resistant Klebsiella pneumoniae strains, the search for new approaches for the prevention of K. pneumoniae infections is now under intensive investigation. The objective of the present study was to investigate the effects of high mobility group nucleosomal binding domain 2 (HMGN2) protein, which acts on the bladder epithelial cells T 24, on the invasion of K. pneumoniae 03183 and explore its possible mechanisms. Pretreatment with HMGN2 significantly reduced K. pneumoniae 03183 uptake by T 24 cells. In T 24 cells, there were no detectable cytotoxic effects of HMGN2 at any concentration between 32 and 256 µg/ml after 2 h incubation. HMGN2 exhibited no appreciable antibacterial activity against K. pneumoniae 03183. Fluorescence microscopy and flow cytometry analysis revealed that HMGN2 blocked K. pneumoniae 03183-induced actin polymerization. K. pneumoniae 03183-induced phosphorylation of extracellular signal-regulated kinase (ERK) and cofilin were prevented by pretreatment with HMGN2. These results indicated that pretreatment with HMGN2 inhibited cofilin phosphorylation and then induced actin disruption which may block ERK phosphorylation. These changes led to inhibition of K. pneumoniae 03183 invasion of T 24 bladder epithelial cells.
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Affiliation(s)
- Yue Cao
- Department of Pathophysiology, West China School of Preclinical Sciences and Forensic Medicine, Sichuan University, Chengdu, Sichuan Province 610041, China
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Ong MS, Vasudevan D, Davey CA. Divalent metal- and high mobility group N protein-dependent nucleosome stability and conformation. J Nucleic Acids 2010; 2010:143890. [PMID: 21188164 PMCID: PMC3005839 DOI: 10.4061/2010/143890] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2010] [Accepted: 09/29/2010] [Indexed: 11/21/2022] Open
Abstract
High mobility group N proteins (HMGNs) bind specifically to the nucleosome core and act as chromatin unfolding and activating factors. Using an all-Xenopus system, we found that HMGN1 and HMGN2 binding to nucleosomes results in distinct ion-dependent conformation and stability. HMGN2 association with nucleosome core particle or nucleosomal array in the presence of divalent metal triggers a reversible transition to a species with much reduced electrophoretic mobility, consistent with a less compact state of the nucleosome. Residues outside of the nucleosome binding domain are required for the activity, which is also displayed by an HMGN1 truncation product lacking part of the regulatory domain. In addition, thermal denaturation assays show that the presence of 1 mM Mg2+> or Ca2+ gives a reduction in nucleosome core terminus stability, which is further substantially diminished by the binding of HMGN2 or truncated HMGN1. Our findings emphasize the importance of divalent metals in nucleosome dynamics and suggest that the differential biological activities of HMGNs in chromatin activation may involve different conformational alterations and modulation of nucleosome core stability.
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Affiliation(s)
- Michelle S Ong
- Division of Structural and Computational Biology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
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Gerlitz G. HMGNs, DNA repair and cancer. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2009; 1799:80-5. [PMID: 20004154 DOI: 10.1016/j.bbagrm.2009.10.007] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2009] [Revised: 10/21/2009] [Accepted: 10/26/2009] [Indexed: 12/28/2022]
Abstract
DNA lesions threaten the integrity of the genome and are a major factor in cancer formation and progression. Eukaryotic DNA is organized in nucleosome-based higher order structures, which form the chromatin fiber. In recent years, considerable knowledge has been gained on the importance of chromatin dynamics for the cellular response to DNA damage and for the ability to repair DNA lesions. High Mobility Group N1 (HMGN1) protein is an emerging factor that is important for chromatin alterations in response to DNA damage originated from both ultra violet light (UV) and ionizing irradiation (IR). HMGN1 is a member in the HMGN family of chromatin architectural proteins. HMGNs bind directly to nucleosomes and modulate the structure of the chromatin fiber in a highly dynamic manner. This review focuses mainly on the roles of HMGN1 in the cellular response pathways to different types of DNA lesions and in transcriptional regulation of cancer-related genes. In addition, emerging roles for HMGN5 in cancer progression and for HMGN2 as a potential tool in cancer therapy will be discussed.
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Affiliation(s)
- Gabi Gerlitz
- Protein Section, Laboratory of Metabolism, National Cancer Institute, National Institutes of Health, Building 37/ Room 3122, 9000 Rockville Pike, Bethesda, MD 20892, USA.
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