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Liu Z, Zhang Y, Li D, Fu J. Cellular senescence in chronic lung diseases from newborns to the elderly: An update literature review. Biomed Pharmacother 2024; 173:116463. [PMID: 38503240 DOI: 10.1016/j.biopha.2024.116463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/11/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024] Open
Abstract
The role of cellular senescence in age-related diseases has been fully recognized. In various age-related-chronic lung diseases, the function of alveolar epithelial cells (AECs) is impaired and alveolar regeneration disorders, especially in bronchopulmonary dysplasia,pulmonary fibrosis (PF), chronic obstructive pulmonary disease (COPD), cancer, etc. Except for age-related-chronic lung diseases, an increasing number of studies are exploring the role of cellular senescence in developmental chronic lung diseases, which typically originate in childhood and even in the neonatal period. This review provides an overview of cellular senescence and lung diseases from newborns to the elderly, attempting to draw attention to the relationship between cellular senescence and developmental lung diseases.
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Affiliation(s)
- Ziyun Liu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Yiqi Zhang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China
| | - Danni Li
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, Liaoning, PR China.
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2
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Huang Y, Jiang H, Xu G, Li X, Chen W, Lun Y, Zhang J. Comprehensive analysis of cellular senescence and immune microenvironment in papillary thyroid carcinoma. Aging (Albany NY) 2024; 16:2866-2886. [PMID: 38329430 PMCID: PMC10911381 DOI: 10.18632/aging.205520] [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: 05/11/2023] [Accepted: 12/22/2023] [Indexed: 02/09/2024]
Abstract
Senescence-induced therapy was previously considered as an effective treatment for tumors, and cellular senescence was initially regarded as an effective mechanism against cancer. However, whether cell senescence-related genes can be used to predict the prognosis of papillary thyroid carcinoma (PTC) and immunotherapy remains unclear. We developed and validated a cell senescence-related signature (CSRS) by analyzing the gene expression of 278 genes related to cellular senescence in 738 patients with PTC. Additionally, further analysis showed that CSRS was a reliable predictor of patient outcomes in combination with immune checkpoint expression and drug susceptibility, and patients with high risk scores may benefit from immunotherapy. The findings of this study demonstrate that CSRS serves as an immunotherapeutic response and prognosis biomarker affecting the tumor immune microenvironment of PTC.
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Affiliation(s)
- Yinde Huang
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
- Department of Breast and Thyroid Surgery, Chongqing General Hospital, Chongqing 401147, China
| | - Han Jiang
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
| | - Guangwen Xu
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
| | - Xin Li
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
| | - Wenbin Chen
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
| | - Yu Lun
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
| | - Jian Zhang
- Department of Vascular and Thyroid Surgery, The First Affiliated Hospital of China Medical University, Shen-Yang 110001, Liaoning, China
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3
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Chen Z, Liu C, Ye T, Zhang Y, Chen Y. Resveratrol affects ccRCC cell senescence and macrophage polarization by regulating the stability of CCNB1 by RBM15. Epigenomics 2023; 15:895-910. [PMID: 37909116 DOI: 10.2217/epi-2023-0150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2023] Open
Abstract
Aim: The present study sought to investigate the therapeutic effect of resveratrol on clear cell renal cell carcinoma. Materials & methods: Cell Counting Kit-8 and 5-ethynyl-2'-deoxyuridine assays were used to verify the cell proliferation. Transwell, real-time quantitative transcription PCR, western blot and β-galactosidase staining were used to verify the migration, macrophage polarization and senescence. The tumor inhibitory effect of resveratrol on clear cell renal cell carcinoma was verified in vivo. Results: This study confirmed that resveratrol could affect the stability of CCNB1 mRNA mediated by RBM15 and inhibit the cancer process by inhibiting the expression of EP300/CBP from the perspective of cell senescence. Conclusion: Resveratrol is able to treat clear cell renal cell carcinoma through RBM15-induced cell senescence.
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Affiliation(s)
- Zhi Chen
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, Hubei, China
| | - Chang Liu
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, Hubei, China
| | - Tao Ye
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, Hubei, China
| | - Yucong Zhang
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, Hubei, China
| | - Yuan Chen
- Department of Geriatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, 430030, Hubei, China
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4
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Noguera NI, Travaglini S, Scalea S, Catalanotto C, Reale A, Zampieri M, Zaza A, Ricciardi MR, Angelini DF, Tafuri A, Ottone T, Voso MT, Zardo G. YY1 Knockdown Relieves the Differentiation Block and Restores Apoptosis in AML Cells. Cancers (Basel) 2023; 15:4010. [PMID: 37568827 PMCID: PMC10417667 DOI: 10.3390/cancers15154010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 08/01/2023] [Accepted: 08/02/2023] [Indexed: 08/13/2023] Open
Abstract
In this study we analyzed the expression of Yin and Yang 1 protein (YY1), a member of the noncanonical PcG complexes, in AML patient samples and AML cell lines and the effect of YY1 downregulation on the AML differentiation block. Our results show that YY1 is significantly overexpressed in AML patient samples and AML cell lines and that YY1 knockdown relieves the differentiation block. YY1 downregulation in two AML cell lines (HL-60 and OCI-AML3) and one AML patient sample restored the expression of members of the CEBP protein family, increased the expression of extrinsic growth factors/receptors and surface antigenic markers, induced morphological cell characteristics typical of myeloid differentiation, and sensitized cells to retinoic acid treatment and to apoptosis. Overall, our data show that YY1 is not a secondary regulator of myeloid differentiation but that, if overexpressed, it can play a predominant role in myeloid differentiation block.
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Affiliation(s)
- Nelida Ines Noguera
- Department of Biomedicine and Prevention, Tor Vergata University, 00133 Rome, Italy; (S.T.); (T.O.); (M.T.V.)
- Unit of Neuro-Oncoematologia, Santa Lucia Foundation IRCCS, 00143 Rome, Italy
| | - Serena Travaglini
- Department of Biomedicine and Prevention, Tor Vergata University, 00133 Rome, Italy; (S.T.); (T.O.); (M.T.V.)
- Unit of Neuro-Oncoematologia, Santa Lucia Foundation IRCCS, 00143 Rome, Italy
| | - Stefania Scalea
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy;
| | - Caterina Catalanotto
- Department of Molecular Medicine, Sapienza University, 00185 Rome, Italy; (C.C.); (A.R.); (M.Z.)
| | - Anna Reale
- Department of Molecular Medicine, Sapienza University, 00185 Rome, Italy; (C.C.); (A.R.); (M.Z.)
| | - Michele Zampieri
- Department of Molecular Medicine, Sapienza University, 00185 Rome, Italy; (C.C.); (A.R.); (M.Z.)
| | - Alessandra Zaza
- Unit of Neuro-Oncoematologia, Santa Lucia Foundation IRCCS, 00143 Rome, Italy
- Department of Medical and Surgical Sciences and Biotechnologies, Sapienza University, 00185 Rome, Italy
| | - Maria Rosaria Ricciardi
- Department of Clinical and Molecular Medicine, Sapienza University, 00185 Rome, Italy; (M.R.R.); (A.T.)
| | | | - Agostino Tafuri
- Department of Clinical and Molecular Medicine, Sapienza University, 00185 Rome, Italy; (M.R.R.); (A.T.)
| | - Tiziana Ottone
- Department of Biomedicine and Prevention, Tor Vergata University, 00133 Rome, Italy; (S.T.); (T.O.); (M.T.V.)
- Unit of Neuro-Oncoematologia, Santa Lucia Foundation IRCCS, 00143 Rome, Italy
| | - Maria Teresa Voso
- Department of Biomedicine and Prevention, Tor Vergata University, 00133 Rome, Italy; (S.T.); (T.O.); (M.T.V.)
- Unit of Neuro-Oncoematologia, Santa Lucia Foundation IRCCS, 00143 Rome, Italy
| | - Giuseppe Zardo
- Department of Experimental Medicine, Sapienza University, 00185 Rome, Italy;
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5
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Cuttini E, Goi C, Pellarin E, Vida R, Brancolini C. HDAC4 in cancer: A multitasking platform to drive not only epigenetic modifications. Front Mol Biosci 2023; 10:1116660. [PMID: 36762207 PMCID: PMC9902726 DOI: 10.3389/fmolb.2023.1116660] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 01/09/2023] [Indexed: 01/25/2023] Open
Abstract
Controlling access to genomic information and maintaining its stability are key aspects of cell life. Histone acetylation is a reversible epigenetic modification that allows access to DNA and the assembly of protein complexes that regulate mainly transcription but also other activities. Enzymes known as histone deacetylases (HDACs) are involved in the removal of the acetyl-group or in some cases of small hydrophobic moieties from histones but also from the non-histone substrate. The main achievement of HDACs on histones is to repress transcription and promote the formation of more compact chromatin. There are 18 different HDACs encoded in the human genome. Here we will discuss HDAC4, a member of the class IIa family, and its possible contribution to cancer development.
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Affiliation(s)
- Emma Cuttini
- Scuola Superiore Universitaria di Toppo Wassermann, Università degli Studi di Udine, Udine, Italy
| | - Camilla Goi
- Scuola Superiore Universitaria di Toppo Wassermann, Università degli Studi di Udine, Udine, Italy
| | - Ester Pellarin
- Scuola Superiore Universitaria di Toppo Wassermann, Università degli Studi di Udine, Udine, Italy
| | - Riccardo Vida
- Scuola Superiore Universitaria di Toppo Wassermann, Università degli Studi di Udine, Udine, Italy
| | - Claudio Brancolini
- Scuola Superiore Universitaria di Toppo Wassermann, Università degli Studi di Udine, Udine, Italy,Laboratory of Epigenomics, Department of Medicine, Università degli Studi di Udine, Udine, Italy,*Correspondence: Claudio Brancolini,
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6
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Adhikari S, Bhattacharya A, Adhikary S, Singh V, Gadad S, Roy S, Das C. The paradigm of drug resistance in cancer: an epigenetic perspective. Biosci Rep 2022; 42:BSR20211812. [PMID: 35438143 PMCID: PMC9069444 DOI: 10.1042/bsr20211812] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 03/24/2022] [Accepted: 03/24/2022] [Indexed: 12/12/2022] Open
Abstract
Innate and acquired resistance towards the conventional therapeutic regimen imposes a significant challenge for the successful management of cancer for decades. In patients with advanced carcinomas, acquisition of drug resistance often leads to tumor recurrence and poor prognosis after the first therapeutic cycle. In this context, cancer stem cells (CSCs) are considered as the prime drivers of therapy resistance in cancer due to their 'non-targetable' nature. Drug resistance in cancer is immensely influenced by different properties of CSCs such as epithelial-to-mesenchymal transition (EMT), a profound expression of drug efflux pump genes, detoxification genes, quiescence, and evasion of apoptosis, has been highlighted in this review article. The crucial epigenetic alterations that are intricately associated with regulating different mechanisms of drug resistance, have been discussed thoroughly. Additionally, special attention is drawn towards the epigenetic mechanisms behind the interaction between the cancer cells and their microenvironment which assists in tumor progression and therapy resistance. Finally, we have provided a cumulative overview of the alternative treatment strategies and epigenome-modifying therapies that show the potential of sensitizing the resistant cells towards the conventional treatment strategies. Thus, this review summarizes the epigenetic and molecular background behind therapy resistance, the prime hindrance of present day anti-cancer therapies, and provides an account of the novel complementary epi-drug-based therapeutic strategies to combat drug resistance.
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Affiliation(s)
- Swagata Adhikari
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
| | - Apoorva Bhattacharya
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
| | - Santanu Adhikary
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Vipin Singh
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
| | - Shrikanth S. Gadad
- Department of Molecular and Translational Medicine, Center of Emphasis in Cancer, Texas Tech University Health Sciences Center El Paso, El Paso, TX, U.S.A
- Mays Cancer Center, UT Health San Antonio MD Anderson Cancer Center, San Antonio, TX 78229, U.S.A
| | - Siddhartha Roy
- Structural Biology and Bioinformatics Division, CSIR-Indian Institute of Chemical Biology, 4 Raja S.C. Mullick Road, Kolkata 700032, India
| | - Chandrima Das
- Biophysics and Structural Genomics Division, Saha Institute of Nuclear Physics, 1/AF Bidhannagar, Kolkata 700064, India
- Homi Bhaba National Institute, Mumbai 400094, India
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7
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Warnon C, Bouhjar K, Ninane N, Verhoyen M, Fattaccioli A, Fransolet M, Lambert de Rouvroit C, Poumay Y, Piel G, Mottet D, Debacq-Chainiaux F. HDAC2 and 7 down-regulation induces senescence in dermal fibroblasts. Aging (Albany NY) 2021; 13:17978-18005. [PMID: 34253688 PMCID: PMC8351730 DOI: 10.18632/aging.203304] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 07/02/2021] [Indexed: 12/12/2022]
Abstract
Originally simply reported to be in a stable and irreversible growth arrest in vitro, senescent cells are now clearly associated with normal and pathological ageing in vivo. They are characterized by several biomarkers and changes in gene expression that may depend on epigenetic factors, such as histone acetylation, involving a balance between histone acetyltransferases (HATs) and histone deacetylases (HDACs). In this study, we investigate the expression and the role of HDACs on the senescent phenotype of dermal fibroblasts. We report that during replicative senescence, most canonical HDACs are less expressed. Moreover, treatment with SAHA, a histone deacetylase inhibitor (HDACi) also known as Vorinostat, or the specific downregulation of HDAC2 or HDAC7 by siRNA, induces the appearance of senescence biomarkers of dermal fibroblasts. Conversely, the ectopic re-expression of HDAC7 by lentiviral transduction in pre-senescent dermal fibroblasts extends their proliferative lifespan. These results demonstrate that HDACs expression can modulate the senescent phenotype, highlighting their pharmaceutical interest in the context of healthy ageing.
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Affiliation(s)
- Céline Warnon
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Karim Bouhjar
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Noëlle Ninane
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Mathilde Verhoyen
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Antoine Fattaccioli
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Maude Fransolet
- URBC, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | | | - Yves Poumay
- URPHYM, Namur Research Institute for Life Sciences (NARILIS), University of Namur, Namur, Belgium
| | - Géraldine Piel
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, University of Liège, Liège, Belgium
| | - Denis Mottet
- University of Liège, GIGA-Molecular Biology of Diseases, Gene Expression and Cancer Laboratory, Liège, Belgium
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8
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Ozyerli-Goknar E, Bagci-Onder T. Epigenetic Deregulation of Apoptosis in Cancers. Cancers (Basel) 2021; 13:3210. [PMID: 34199020 PMCID: PMC8267644 DOI: 10.3390/cancers13133210] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/09/2021] [Accepted: 06/11/2021] [Indexed: 12/11/2022] Open
Abstract
Cancer cells possess the ability to evade apoptosis. Genetic alterations through mutations in key genes of the apoptotic signaling pathway represent a major adaptive mechanism of apoptosis evasion. In parallel, epigenetic changes via aberrant modifications of DNA and histones to regulate the expression of pro- and antiapoptotic signal mediators represent a major complementary mechanism in apoptosis regulation and therapy response. Most epigenetic changes are governed by the activity of chromatin modifying enzymes that add, remove, or recognize different marks on histones and DNA. Here, we discuss how apoptosis signaling components are deregulated at epigenetic levels, particularly focusing on the roles of chromatin-modifying enzymes in this process. We also review the advances in cancer therapies with epigenetic drugs such as DNMT, HMT, HDAC, and BET inhibitors, as well as their effects on apoptosis modulation in cancer cells. Rewiring the epigenome by drug interventions can provide therapeutic advantage for various cancers by reverting therapy resistance and leading cancer cells to undergo apoptotic cell death.
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Affiliation(s)
- Ezgi Ozyerli-Goknar
- Brain Cancer Research and Therapy Laboratory, Koç University School of Medicine, Istanbul 34450, Turkey;
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
| | - Tugba Bagci-Onder
- Brain Cancer Research and Therapy Laboratory, Koç University School of Medicine, Istanbul 34450, Turkey;
- Research Center for Translational Medicine, Koç University, Istanbul 34450, Turkey
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9
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Singh M, Kumar V, Sehrawat N, Yadav M, Chaudhary M, Upadhyay SK, Kumar S, Sharma V, Kumar S, Dilbaghi N, Sharma AK. Current paradigms in epigenetic anticancer therapeutics and future challenges. Semin Cancer Biol 2021; 83:422-440. [PMID: 33766649 DOI: 10.1016/j.semcancer.2021.03.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 12/14/2020] [Accepted: 03/16/2021] [Indexed: 12/16/2022]
Abstract
Any alteration at the genetic or epigenetic level, may result in multiplex of diseases including tumorigenesis which ultimately results in the cancer development. Restoration of the normal epigenome by reversing the epigenetic alterations have been reported in tumors paving the way for development of an effective epigenetic treatment in cancer. However, delineating various epigenetic events has been a challenging task so far despite substantial progress in understanding DNA methylation and histone modifications during transcription of genes. Many inhibitors in the form of epigenetic drugs mostly targeting chromatin and histone modifying enzymes including DNA methyltransferase (DNMT) enzyme inhibitors and a histone deacetylases (HDACs) inhibitor, have been in use subsequent to the approval by FDA for cancer treatment. Similarly, other inhibitory drugs, such as FK228, suberoylanilide hydroxamic acid (SAHA) and MS-275, have been successfully tested in clinical studies. Despite all these advancements, still we see a hazy view as far as a promising epigenetic anticancer therapy is concerned. The challenges are to have more specific and effective inhibitors with negligible side effects. Moreover, the alterations seen in tumors are not well understood for which one has to gain deeper insight into the tumor pathology as well. Current review focusses on such epigenetic alterations occurring in cancer and the effective strategies to utilize such alterations for potential therapeutic use and treatment in cancer.
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Affiliation(s)
- Manoj Singh
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Vikas Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Nirmala Sehrawat
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Mukesh Yadav
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Mayank Chaudhary
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Sushil K Upadhyay
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Sunil Kumar
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India
| | - Varruchi Sharma
- Department of Biotechnology, Sri Guru Gobind Singh College Sector-26, Chandigarh, UT, 160019, India
| | - Sandeep Kumar
- Department of Bio& Nanotechnology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Neeraj Dilbaghi
- Department of Bio& Nanotechnology, Guru Jambheshwar University of Science & Technology, Hisar, Haryana, 125001, India
| | - Anil K Sharma
- Department of Biotechnology, Maharishi Markandeshwar (Deemed to be University), Mullana-Ambala, 133207, Haryana, India.
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10
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Genomic profiling of the transcription factor Zfp148 and its impact on the p53 pathway. Sci Rep 2020; 10:14156. [PMID: 32843651 PMCID: PMC7447789 DOI: 10.1038/s41598-020-70824-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 08/04/2020] [Indexed: 12/12/2022] Open
Abstract
Recent data suggest that the transcription factor Zfp148 represses activation of the tumor suppressor p53 in mice and that therapeutic targeting of the human orthologue ZNF148 could activate the p53 pathway without causing detrimental side effects. We have previously shown that Zfp148 deficiency promotes p53-dependent proliferation arrest of mouse embryonic fibroblasts (MEFs), but the underlying mechanism is not clear. Here, we showed that Zfp148 deficiency downregulated cell cycle genes in MEFs in a p53-dependent manner. Proliferation arrest of Zfp148-deficient cells required increased expression of ARF, a potent activator of the p53 pathway. Chromatin immunoprecipitation showed that Zfp148 bound to the ARF promoter, suggesting that Zfp148 represses ARF transcription. However, Zfp148 preferentially bound to promoters of other transcription factors, indicating that deletion of Zfp148 may have pleiotropic effects that activate ARF and p53 indirectly. In line with this, we found no evidence of genetic interaction between TP53 and ZNF148 in CRISPR and siRNA screen data from hundreds of human cancer cell lines. We conclude that Zfp148 deficiency, by increasing ARF transcription, downregulates cell cycle genes and cell proliferation in a p53-dependent manner. However, the lack of genetic interaction between ZNF148 and TP53 in human cancer cells suggests that therapeutic targeting of ZNF148 may not increase p53 activity in humans.
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11
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Meliala ITS, Hosea R, Kasim V, Wu S. The biological implications of Yin Yang 1 in the hallmarks of cancer. Theranostics 2020; 10:4183-4200. [PMID: 32226547 PMCID: PMC7086370 DOI: 10.7150/thno.43481] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2019] [Accepted: 02/09/2020] [Indexed: 12/24/2022] Open
Abstract
Tumorigenesis is a multistep process characterized by the acquisition of genetic and epigenetic alterations. During the course of malignancy development, tumor cells acquire several features that allow them to survive and adapt to the stress-related conditions of the tumor microenvironment. These properties, which are known as hallmarks of cancer, include uncontrolled cell proliferation, metabolic reprogramming, tumor angiogenesis, metastasis, and immune system evasion. Zinc-finger protein Yin Yang 1 (YY1) regulates numerous genes involved in cell death, cell cycle, cellular metabolism, and inflammatory response. YY1 is highly expressed in many cancers, whereby it is associated with cell proliferation, survival, and metabolic reprogramming. Furthermore, recent studies also have demonstrated the important role of YY1-related non-coding RNAs in acquiring cancer-specific characteristics. Therefore, these YY1-related non-coding RNAs are also crucial for YY1-mediated tumorigenesis. Herein, we summarize recent progress with respect to YY1 and its biological implications in the context of hallmarks of cancer.
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12
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Hou F, Wei W, Qin X, Liang J, Han S, Han A, Kong Q. The posttranslational modification of HDAC4 in cell biology: Mechanisms and potential targets. J Cell Biochem 2019; 121:930-937. [PMID: 31588631 DOI: 10.1002/jcb.29365] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Accepted: 08/20/2019] [Indexed: 12/15/2022]
Abstract
Histone deacetylase 4 (HDAC4) is a member of the HDACs family, its expression is closely related to the cell development. The cell is an independent living entity that undergoes proliferation, differentiation, senescence, apoptosis, and pathology, and each process has a strict and complex regulatory system. With deepening of its research, the expression of HDAC4 is critical in the life process. This review focuses on the posttranslational modification of HDAC4 in cell biology, providing an important target for future disease treatment.
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Affiliation(s)
- Fei Hou
- Lupus Research Institute, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China.,Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
| | - Wei Wei
- Lupus Research Institute, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China.,Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
| | - Xiao Qin
- Lupus Research Institute, Affiliated Hospital of Jining Medical University, Jining Medical University, Jining, China.,Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
| | - Jing Liang
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China.,College of Life Sciences, Qufu Normal University, Qufu, China
| | - Sha Han
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
| | - Aizhong Han
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
| | - Qingsheng Kong
- Collaborative Innovation Center for Birth Defect Research and Transformation of Shandong, Jining, China
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13
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Jiao Y, Feng Y, Wang X. Regulation of Tumor Suppressor Gene CDKN2A and Encoded p16-INK4a Protein by Covalent Modifications. BIOCHEMISTRY (MOSCOW) 2018; 83:1289-1298. [PMID: 30482142 DOI: 10.1134/s0006297918110019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
CDKN2A is one of the most studied tumor suppressor genes. It encodes the p16-INK4a protein that plays a critical role in the cell cycle progression, differentiation, senescence, and apoptosis. Mutations in CDKN2A or dysregulation of its functional activity are frequently associated with various types of human cancer. As a cyclin-dependent kinase inhibitor, p16-INK4a forms a complex with cyclin-dependent kinases 4/6 (CDK4/6) thereby competing with cyclin D. It is believed that the helix-turn-helix structures in the content of tandem ankyrin repeats in p16-INK4a are required for the protein interaction with CDK4. Until recently, the mechanisms considered to be involved in the regulation of p16-INK4a functions and cancer development have been mutations in DNA, homozygous or heterozygous gene loss, and methylation of CDKN2A promoter region. In this review, we discuss recent findings on the regulation of p16-INK4a by covalent modifications at both transcriptional and post-translational levels.
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Affiliation(s)
- Yang Jiao
- School of Physical Education, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Yunpeng Feng
- Key Laboratory of Molecular Epigenetics, Ministry of Education, Northeast Normal University, Changchun, Jilin, 130024, P. R. China
| | - Xiuli Wang
- Central Laboratory of General Biology, School of Life Sciences, Northeast Normal University, Changchun, Jilin, 130024, P. R. China.
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14
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Wang N, Wang S, Yang SL, Liu LP, Li MY, Lai PBS, Chen GG. Targeting ZBP-89 for the treatment of hepatocellular carcinoma. Expert Opin Ther Targets 2018; 22:817-822. [PMID: 30142986 DOI: 10.1080/14728222.2018.1516753] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Nuozhou Wang
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Shanshan Wang
- Department of Otorhinolaryngology, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - Sheng-li Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Li-ping Liu
- Department of Hepatobiliary and Pancreas Surgery, the Second Clinical Medical College of Jinan University (Shenzhen People’s Hospital), Shenzhen, Guangdong Province, China
| | - Ming-yue Li
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Guangdong, China
| | - Paul B. S. Lai
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
| | - George G. Chen
- Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong, China
- Shenzhen Research Institute, The Chinese University of Hong Kong, Guangdong, China
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15
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Wang QS, Chen C, Zhan J, Fang XF, Chen GG, Yang SL, Chen RW, Tong F, Hu JL. Peritumoral overexpression of ZBP-89 is associated with unfavorable disease-free survival rates in patients with hepatocellular carcinoma following hepatectomy. Oncol Lett 2018; 15:7828-7836. [PMID: 29731904 PMCID: PMC5920541 DOI: 10.3892/ol.2018.8353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 02/09/2018] [Indexed: 11/05/2022] Open
Abstract
Previous studies have revealed that the peritumoral environment has a profound influence on tumor initiation and progression. Zinc-binding protein-89 (ZBP-89) has been observed to be involved with tumor development, recurrence, and metastasis. High intratumoral expression of ZBP-89 has been associated with improved prognosis in several tumor types. However, the prognostic values of peritumoral expression of ZBP-89 remain to be elucidated in patients with hepatocellular carcinoma (HCC) following curative resection. In the present study, peritumoral ZBP-89 expression was examined using immunohistochemistry in 102 HCC patients who had received curative hepatectomy. Expression of ZBP-89 protein was positive in 66.3% of the peritumoral samples from 102 HCC patients. HCC patients with high peritumoral ZBP-89 expression exhibited significantly shorter disease-free survival (DFS) times (P=0.012) than those patients with low peritumoral ZBP-89 expression. Additionally, high ZBP-89 expression in peritumoral HCC tissue was positively associated with the presence of liver cirrhosis. Univariate and multivariate Cox proportional hazard regression analyses demonstrated that albumin levels ≤35 g/l, multiple tumors, tumor sizes ≥5 cm, and macroscopic vascular invasion may serve as independent prognostic factors for overall survival (OS) [hazard ratio (HR)=2.031; P=0.014] in patients with HCC. The multivariate Cox regression model identified that high ZBP-89 expression, multiple tumors and macroscopic vascular invasion were independent prognostic factors for shorter DFS durations. High expression of ZBP-89 in peritumoral HCC tissues was associated with a shorter DFS in HCC patients following curative hepatectomy. Additionally, high ZBP-89 expression in peritumoral HCC tissue was positively associated with the presence of liver cirrhosis in HCC patients, indicating that cirrhosis accompanied by high ZBP-89 expression may be a contributing factor to the poor prognosis of patients with HCC. Therefore, peritumoral ZBP-89 expression may be a good prognostic marker to predict DFS time in HCC patients following curative hepatectomy and may provide novel insights into the molecular mechanisms of HCC initiation.
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Affiliation(s)
- Qiu-Shuang Wang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Chen Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jing Zhan
- Department of Gastroenterology and Hepatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Xie-Fan Fang
- Department of Pediatrics, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, SAR, P.R. China
| | - Sheng-Li Yang
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Ren-Wang Chen
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Fan Tong
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
| | - Jian-Li Hu
- Cancer Center, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei 430022, P.R. China
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16
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Nilton A, Sayin VI, Zou ZV, Sayin SI, Bondjers C, Gul N, Agren P, Fogelstrand P, Nilsson O, Bergo MO, Lindahl P. Targeting Zfp148 activates p53 and reduces tumor initiation in the gut. Oncotarget 2018; 7:56183-56192. [PMID: 27487143 PMCID: PMC5302905 DOI: 10.18632/oncotarget.10899] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2016] [Accepted: 07/13/2016] [Indexed: 12/30/2022] Open
Abstract
The transcription factor Zinc finger protein 148 (Zfp148, ZBP-89, BFCOL, BERF1, htβ) interacts physically with the tumor suppressor p53, but the significance of this interaction is not known. We recently showed that knockout of Zfp148 in mice leads to ectopic activation of p53 in some tissues and cultured fibroblasts, suggesting that Zfp148 represses p53 activity. Here we hypothesize that targeting Zfp148 would unleash p53 activity and protect against cancer development, and test this idea in the APCMin/+ mouse model of intestinal adenomas. Loss of one copy of Zfp148 markedly reduced tumor numbers and tumor-associated intestinal bleedings, and improved survival. Furthermore, after activation of β-catenin-the initiating event in colorectal cancer-Zfp148 deficiency activated p53 and induced apoptosis in intestinal explants of APCMin/+ mice. The anti-tumor effect of targeting Zfp148 depended on p53, as Zfp148 deficiency did not affect tumor numbers in APCMin/+ mice lacking one or both copies of Trp53. The results suggest that Zfp148 controls the fate of newly transformed intestinal tumor cells by repressing p53 and that targeting Zfp148 might be useful in the treatment of colorectal cancer.
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Affiliation(s)
- Anna Nilton
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Volkan I Sayin
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden.,Department of Biochemistry, Institute of Biomedicine, Gothenburg, Sweden
| | - Zhiyuan V Zou
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Sama I Sayin
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Cecilia Bondjers
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Nadia Gul
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Pia Agren
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Per Fogelstrand
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden
| | - Ola Nilsson
- Sahlgrenska Cancer Center, Institute of Biomedicine, Department of Pathology and Genetics, Gothenburg, Sweden
| | - Martin O Bergo
- Sahlgrenska Cancer Center, Department of Molecular and Clinical Medicine, Institute of Medicine, Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Per Lindahl
- Wallenberg Laboratory, Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg, Sweden.,Department of Biochemistry, Institute of Biomedicine, Gothenburg, Sweden
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17
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Cassandri M, Smirnov A, Novelli F, Pitolli C, Agostini M, Malewicz M, Melino G, Raschellà G. Zinc-finger proteins in health and disease. Cell Death Discov 2017; 3:17071. [PMID: 29152378 PMCID: PMC5683310 DOI: 10.1038/cddiscovery.2017.71] [Citation(s) in RCA: 438] [Impact Index Per Article: 62.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 08/28/2017] [Accepted: 08/29/2017] [Indexed: 02/07/2023] Open
Abstract
Zinc-finger proteins (ZNFs) are one of the most abundant groups of proteins and have a wide range of molecular functions. Given the wide variety of zinc-finger domains, ZNFs are able to interact with DNA, RNA, PAR (poly-ADP-ribose) and other proteins. Thus, ZNFs are involved in the regulation of several cellular processes. In fact, ZNFs are implicated in transcriptional regulation, ubiquitin-mediated protein degradation, signal transduction, actin targeting, DNA repair, cell migration, and numerous other processes. The aim of this review is to provide a comprehensive summary of the current state of knowledge of this class of proteins. Firstly, we describe the actual classification of ZNFs, their structure and functions. Secondly, we focus on the biological role of ZNFs in the development of organisms under normal physiological and pathological conditions.
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Affiliation(s)
- Matteo Cassandri
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Artem Smirnov
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Flavia Novelli
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Consuelo Pitolli
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Massimiliano Agostini
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy
| | - Michal Malewicz
- Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Gerry Melino
- Department of Experimental Medicine and Surgery, University of Rome 'Tor Vergata', Rome 00133, Italy.,Medical Research Council, Toxicology Unit, Leicester University, Leicester LE1 9HN, UK
| | - Giuseppe Raschellà
- ENEA Research Center Casaccia, Laboratory of Biosafety and Risk Assessment, Via Anguillarese, Rome, Italy
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18
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ZBP-89 function in colonic stem cells and during butyrate-induced senescence. Oncotarget 2017; 8:94330-94344. [PMID: 29212231 PMCID: PMC5706877 DOI: 10.18632/oncotarget.21698] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 09/08/2017] [Indexed: 01/29/2023] Open
Abstract
ZBP-89 (Zfp148, ZNF148) is a Kruppel-type zinc-finger family transcription factor that binds to GC-rich DNA elements. Earlier studies in cell lines demonstrated that ZBP-89 cooperates with Wnt β-catenin signaling by inducing β-catenin gene expression. Since β-catenin levels are normally highest at the crypt base, we examined whether ZBP-89 is required for stem cell maintenance. Lineage-tracing using a Zfp148CreERT2 transgenic line demonstrated expression in both intestine and colonic stem cells. Deleting the Zfp148 locus in the colon using the Cdx2NLSCreERT2 transgene, reduced the size and number of polyps formed in the Apc-deleted mice. Since colon polyps form in the presence of butyrate, a short chain fatty acid that suppresses cell growth, we examined the direct effect of butyrate on colon organoid survival. Butyrate induced senescence of colon organoids carrying the Apc deletion, only when Zfp148 was deleted. Using quantitative PCR and chromatin immunoprecipitation, we determined that butyrate treatment of colon cell lines suppressed ZNF148 gene expression, inducing CDKN2a (p16Ink4a ) gene expression. Collectively, Zfp148 mRNA is expressed in CBCs, and is required for stem cell maintenance and colonic transformation. Butyrate induces colonic cell senescence in part through suppression of ZBP-89 gene expression and its subsequent occupancy of the CDKN2A promoter.
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19
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The interplay between p16 serine phosphorylation and arginine methylation determines its function in modulating cellular apoptosis and senescence. Sci Rep 2017; 7:41390. [PMID: 28120917 PMCID: PMC5264599 DOI: 10.1038/srep41390] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Accepted: 12/20/2016] [Indexed: 01/09/2023] Open
Abstract
Cyclin-dependent kinase inhibitor p16INK4a (p16) primarily functions as a negative regulator of the retinoblastoma protein (Rb) -E2F pathway, thus plays critical role in cell cycle progression, cellular senescence and apoptosis. In this study, we showed that the methylation of Arg 138 and the phosphorylation of Ser 140 on p16 were critical for the control of cell proliferation and apoptosis. Compared to wild type p16, mutant p16R138K possessed improved function in preventing cell proliferation and inducing apoptosis, while the Ser 140 mutation (p16S140A) exhibited the opposite alteration. We also demonstrated that H2O2 was able to induce the phosphorylation of p16, which facilitated the interaction between CDK4 (Cyclin-dependent protein kinase) and p16, in 293T (human emborynic kidney) cells. Furthermore, the elevated arginine methylation in p16S140A mutant and increased serine phosphorylation in p16R138K mutant suggest that a antagonizing mechanism coordinating Arg 138 methylation and Ser 140 phosphorylation to regulates p16 function as well as cellular apoptosis and senescence. These findings will therefore contribute to therapeutic treatment for p16-related gene therapy by providing theoretical and experimental evidence.
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20
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Han X, Niu J, Zhao Y, Kong Q, Tong T, Han L. HDAC4 stabilizes SIRT1 via sumoylation SIRT1 to delay cellular senescence. Clin Exp Pharmacol Physiol 2016; 43:41-6. [PMID: 26414199 DOI: 10.1111/1440-1681.12496] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 08/27/2015] [Accepted: 09/22/2015] [Indexed: 12/30/2022]
Abstract
The nicotinamide adenine dinucleotide-dependent protein deacetylase silent information regulator 2 (Sir2) regulates cellular lifespan in several organisms. Histone deacetylase 4 (HDAC4) belongs to the class IIa group of HDACs; this class of HDACs is composed of proteins that are important regulators of gene expression that control pleiotropic cellular functions. However, the role of HDAC4 in cellular senescence is still unknown. This study shows that the expression patterns of HDAC4 and Sirtuin 1 (SIRT1; the mammalian homolog of Sir2) are positively correlated during cellular senescence. Moreover, the overexpression of HDAC4 delays senescence, whereas the knockdown of HDAC4 leads to premature senescence in human fibroblasts. Furthermore, it is demonstrated that HDAC4 increases endogenous SIRT1 expression by enhancing its sumoylation modification levels, thereby stabilizing its protein levels. This study, therefore, provides a new molecular mechanism for the regulation of cellular senescence.
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Affiliation(s)
- Xiaolin Han
- Department of Biochemistry, Jining Medical University, Jining, China
| | - Jing Niu
- Department of Biochemistry and Molecular Biology, Capital Medical University, Beijing, China
| | - Yang Zhao
- Capital Institute of Pediatrics, Beijing, China
| | - Qingsheng Kong
- Department of Biochemistry, Jining Medical University, Jining, China
| | - Tanjun Tong
- Peking University Research Centre on Aging, Beijing, China
| | - Limin Han
- Department of Biochemistry & Molecular Biology, Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, School of Basic Medical Sciences, Peking University Health Science Centre, Beijing, China
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21
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Novel histone deacetylase inhibitors derived from Magnolia officinalis significantly enhance TRAIL-induced apoptosis in non-small cell lung cancer. Pharmacol Res 2016; 111:113-125. [DOI: 10.1016/j.phrs.2016.05.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 05/24/2016] [Accepted: 05/25/2016] [Indexed: 12/30/2022]
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22
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Zhao R, Choi BY, Lee MH, Bode AM, Dong Z. Implications of Genetic and Epigenetic Alterations of CDKN2A (p16(INK4a)) in Cancer. EBioMedicine 2016; 8:30-39. [PMID: 27428416 PMCID: PMC4919535 DOI: 10.1016/j.ebiom.2016.04.017] [Citation(s) in RCA: 243] [Impact Index Per Article: 30.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2016] [Revised: 04/01/2016] [Accepted: 04/14/2016] [Indexed: 12/12/2022] Open
Abstract
Aberrant gene silencing is highly associated with altered cell cycle regulation during carcinogenesis. In particular, silencing of the CDKN2A tumor suppressor gene, which encodes the p16(INK4a) protein, has a causal link with several different types of cancers. The p16(INK4a) protein plays an executional role in cell cycle and senescence through the regulation of the cyclin-dependent kinase (CDK) 4/6 and cyclin D complexes. Several genetic and epigenetic aberrations of CDKN2A lead to enhanced tumorigenesis and metastasis with recurrence of cancer and poor prognosis. In these cases, the restoration of genetic and epigenetic reactivation of CDKN2A is a practical approach for the prevention and therapy of cancer. This review highlights the genetic status of CDKN2A as a prognostic and predictive biomarker in various cancers.
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Affiliation(s)
- Ran Zhao
- China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China
| | - Bu Young Choi
- Department of Pharmaceutical Science and Engineering, Seowon University, Cheongju 361-742, South Korea
| | - Mee-Hyun Lee
- China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China.
| | - Ann M Bode
- The Hormel Institute, University of Minnesota, Austin, MN 55912, USA
| | - Zigang Dong
- China-US (Henan) Hormel Cancer Institute, No.127, Dongming Road, Jinshui District, Zhengzhou, Henan 450008, China; The Hormel Institute, University of Minnesota, Austin, MN 55912, USA.
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23
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Rajendran P, Dashwood WM, Li L, Kang Y, Kim E, Johnson G, Fischer KA, Löhr CV, Williams DE, Ho E, Yamamoto M, Lieberman DA, Dashwood RH. Nrf2 status affects tumor growth, HDAC3 gene promoter associations, and the response to sulforaphane in the colon. Clin Epigenetics 2015; 7:102. [PMID: 26388957 PMCID: PMC4575421 DOI: 10.1186/s13148-015-0132-y] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Accepted: 09/02/2015] [Indexed: 02/08/2023] Open
Abstract
Background The dietary agent sulforaphane (SFN) has been reported to induce nuclear factor erythroid 2 (NF-E2)-related factor 2 (Nrf2)-dependent pathways as well as inhibiting histone deacetylase (HDAC) activity. The current investigation sought to examine the relationships between Nrf2 status and HDAC expression in preclinical and translational studies. Results Wild type (WT) and Nrf2-deficient (Nrf2−/+) mice were treated with the colon carcinogen 1,2-dimethylhydrazine (DMH) followed by 400 ppm SFN in the diet (n = 35 mice/group). WT mice were more susceptible than Nrf2−/+ mice to tumor induction in the colon. Tumors from WT mice had higher HDAC levels globally and locally on genes such as cyclin-dependant kinase inhibitor 2a (Cdkn2a/p16) that were dysregulated during tumor development. The average tumor burden was reduced by SFN from 62.7 to 26.0 mm3 in WT mice and from 14.6 to 11.7 mm3 in Nrf2−/+ mice. The decreased antitumor activity of SFN in Nrf2−/+ mice coincided with attenuated Cdkn2a promoter interactions involving HDAC3. HDAC3 knockdown in human colon cancer cells recapitulated the effects of SFN on p16 induction. Human subjects given a broccoli sprout extract supplement (200 μmol SFN equivalents), or reporting more than five cruciferous vegetable servings per week, had increased p16 expression that was inversely associated with HDAC3 in circulating peripheral blood mononuclear cells (PBMCs) and in biopsies obtained during screening colonoscopy. Conclusions Nrf2 expression varies widely in both normal human colon and human colon cancers and likely contributes to the overall rate of tumor growth in the large intestine. It remains to be determined whether this influences global HDAC protein expression levels, as well as local HDAC interactions on genes dysregulated during human colon tumor development. If corroborated in future studies, Nrf2 status might serve as a biomarker of HDAC inhibitor efficacy in clinical trials using single agent or combination modalities to slow, halt, or regress the progression to later stages of solid tumors and hematological malignancies. Electronic supplementary material The online version of this article (doi:10.1186/s13148-015-0132-y) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Praveen Rajendran
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA
| | - Wan-Mohaiza Dashwood
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA
| | - Li Li
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA
| | - Yuki Kang
- Linus Pauling Institute, Oregon State University, Corvallis, OR USA
| | - Eunah Kim
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA
| | - Gavin Johnson
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA
| | - Kay A Fischer
- College of Veterinary Medicine, Oregon State University, Corvallis, OR USA
| | - Christiane V Löhr
- College of Veterinary Medicine, Oregon State University, Corvallis, OR USA
| | - David E Williams
- Linus Pauling Institute, Oregon State University, Corvallis, OR USA ; Department of Environmental and Molecular Toxicology, Oregon State University, Corvallis, OR USA
| | - Emily Ho
- Linus Pauling Institute, Oregon State University, Corvallis, OR USA ; College of Public Health and Human Sciences, Oregon State University, Corvallis, OR USA
| | - Masayuki Yamamoto
- Division of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Miyagi Japan
| | - David A Lieberman
- Department of Medicine, Oregon Health & Science University, Portland, OR USA
| | - Roderick H Dashwood
- Center for Epigenetics & Disease Prevention, Texas A&M Health Science Center, Houston, TX USA ; Department of Food Science & Nutrition, Texas A&M University, College Station, TX USA ; Department of Molecular & Cellular Medicine, Texas A&M University, College Station, TX USA ; Department of Clinical Cancer Prevention, MD Anderson Cancer Center, Houston, TX USA
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24
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Ma WL, Wang L, Liu LX, Wang XL. Effect of phosphorylation and methylation on the function of the p16 INK4a protein in non-small cell lung cancer A549 cells. Oncol Lett 2015; 10:2277-2282. [PMID: 26622834 DOI: 10.3892/ol.2015.3617] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Accepted: 05/29/2015] [Indexed: 11/06/2022] Open
Abstract
The p16INK4a protein (p16) has been reported to be a tumor suppressor gene that suppresses the proliferation of cells through the direct inhibition of cell cycle progression. Accordingly, p16 is a potential target for cancer gene therapy. In the present study, the arginine 22, 131 and 138 residues of p16 were found to be methylation sites, as the mutation of these arginine residues to lysine resulted in the hypomethylation of p16. Furthermore, the protein arginine methyltransferases (PRMTs), such as PRMT1, PRMT4 and PRMT6, were determined to be involved in the methylation of the p16 arginine residues. PRMT6 effectively reduced the intensity of the association between p16 and CDK4, and also weakened the function of p16 in preventing cell proliferation. In addition, the p16 protein was found to be phosphorylated in various cell lines, and mutations in the serine residues weakened the cell cycle arrest and induction of apoptosis mediated by p16. Preliminarily, the crosstalk between the phosphorylation and arginine methylation modification of p16 was examined. These findings predict a role for serine phosphorylation against arginine methylation of p16.
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Affiliation(s)
- Wen-Long Ma
- Institute of Genetics and Cytology, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - Lin Wang
- Institute of Genetics and Cytology, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - Ling-Xia Liu
- Institute of Genetics and Cytology, Northeast Normal University, Changchun, Jilin 130024, P.R. China
| | - Xiu-Li Wang
- School of Life Sciences, Northeast Normal University, Changchun, Jilin 130024, P.R. China
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25
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Ye CG, Liu L, Chen GG, Tang XL, He Z, He ML, Lai PBS. ZBP-89 reduces histone deacetylase 3 by degrading IkappaB in the presence of Pin1. J Transl Med 2015; 13:23. [PMID: 25623232 PMCID: PMC4311446 DOI: 10.1186/s12967-015-0382-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 01/07/2015] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Histone deacetylase 3 (HDAC3) is overexpressed in cancers and its inhibition enhances anti-tumor chemotherapy. ZBP-89, a transcription factor, can induce pro-apoptotic Bak and reduce HDAC3 but the mechanism is unknown. Pin1, a molecular switch that determines the fate of phosphoproteins, is known to interact with HDAC3. The aim of this study was to investigate the mechanism how ZBP-89 downregulated HDAC3. METHODS In this study, liver cells, Pin1-knockout Pin1(-/-) and Pin1 wild-typed Pin(+/+) cells were used to explore how ZBP-89 reduced HDAC3. The overexpression of ZBP-89 was achieved by infecting cells with Ad-ZBP-89, an adenoviral construct containing ZBP-89 gene. The role of NF-κB was determined using CAY10576, MG132 and SN50, the former two being inhibitors of IκB degradation and SN50 being an inhibitor of p65/p50 translocation. A xenograft tumor model was used to confirm the in vitro data. RESULTS ZBP-89 reduced HDAC3, and it could form a complex with IκB and induce IκB phosphorylation to inhibit IκB. Furthermore, ZBP-89-mediated HDAC3 reduction was suppressed by IκB degradation inhibitors CAY10576 and MG132 but not by p65/p50 translocation inhibitor SN50, indicating that IκB decrease rather than the elevated activity of NF-κB contributed to HDAC3 reduction. ZBP-89-mediated HDAC3 or IκB reduction was significantly less obvious in Pin1(-/-) cells compared with Pin1(+/+) cells. In Ad-ZBP-89-infected Pin1(+/+) cancer cells, Pin1 siRNA increased HDAC3 but decreased Bak, compared with cells without ZBP-89 infection. These findings indicate that Pin1 participates in ZBP-89-mediated HDAC3 downregulation and Bak upregulation. The cell culture result was confirmed by in vivo mouse tumor model experiments. CONCLUSIONS ZBP-89 attenuates HDAC3 by increasing IκB degradation. Such attenuation is independent of NF-κB activity but partially depends on Pin1. The novel pathway identified may help generate new anti-cancer strategy by targeting HDAC3 and its related molecules.
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Affiliation(s)
- Cai Guo Ye
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, NT, P. R. China. .,Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, P. R. China. .,Sino-America Cancer Research Institute, The Guangdong Medical College, Dongguan, Guangdong province, P R China.
| | - Liping Liu
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, P. R. China. .,Department of Hepatobiliary and Pancreas Surgery, the Second Clinical Medical College of Jinan University (Shenzhen People's Hospital), Shenzhen, Guangdong Province, China.
| | - George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, NT, P. R. China. .,Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, P. R. China.
| | - Xiao Lin Tang
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, P. R. China.
| | - Zhiwei He
- Sino-America Cancer Research Institute, The Guangdong Medical College, Dongguan, Guangdong province, P R China.
| | - Ming-Liang He
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong, NT, P. R. China.
| | - Paul B S Lai
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong, NT, P. R. China.
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26
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Loss of One Copy of Zfp148 Reduces Lesional Macrophage Proliferation and Atherosclerosis in Mice by Activating p53. Circ Res 2014; 115:781-9. [DOI: 10.1161/circresaha.115.304992] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Rationale:
Cell proliferation and cell cycle control mechanisms are thought to play central roles in the pathogenesis of atherosclerosis. The transcription factor Zinc finger protein 148 (Zfp148) was shown recently to maintain cell proliferation under oxidative conditions by suppressing p53, a checkpoint protein that arrests proliferation in response to various stressors. It is established that inactivation of p53 accelerates atherosclerosis, but whether increased p53 activation confers protection against the disease remains to be determined.
Objective:
We aimed to test the hypothesis that
Zfp148
deficiency reduces atherosclerosis by unleashing p53 activity.
Methods and Results:
Mice harboring a gene-trap mutation in the
Zfp148
locus (
Zfp148
gt/+
) were bred onto the apolipoprotein E (
Apoe
)
–/–
genetic background and fed a high-fat or chow diet. Loss of 1 copy of
Zfp148
markedly reduced atherosclerosis without affecting lipid metabolism. Bone marrow transplantation experiments revealed that the effector cell is of hematopoietic origin. Peritoneal macrophages and atherosclerotic lesions from
Zfp148
gt/+
Apoe
–/–
mice showed increased levels of phosphorylated p53 compared with controls, and atherosclerotic lesions contained fewer proliferating macrophages.
Zfp148
gt/+
Apoe
–/–
mice were further crossed with p53-null mice (
Trp53
–/–
[the gene encoding p53]). There was no difference in atherosclerosis between
Zfp148
gt/+
Apoe
–/–
mice and controls on a
Trp53
+/–
genetic background, and there was no difference in levels of phosphorylated p53 or cell proliferation.
Conclusions:
Zfp148
deficiency increases p53 activity and protects against atherosclerosis by causing proliferation arrest of lesional macrophages, suggesting that drugs targeting macrophage proliferation may be useful in the treatment of atherosclerosis.
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27
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Escande C, Nin V, Pirtskhalava T, Chini CC, Thereza Barbosa M, Mathison A, Urrutia R, Tchkonia T, Kirkland JL, Chini EN. Deleted in Breast Cancer 1 regulates cellular senescence during obesity. Aging Cell 2014; 13:951-3. [PMID: 24992635 PMCID: PMC4172532 DOI: 10.1111/acel.12235] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/29/2014] [Indexed: 11/28/2022] Open
Abstract
Chronic obesity leads to inflammation, tissue dysfunction, and cellular senescence. It was proposed that cellular senescence during obesity and aging drives inflammation and dysfunction. Consistent with this, clearance of senescent cells increases healthspan in progeroid mice. Here, we show that the protein Deleted in Breast Cancer-1 (DBC1) regulates cellular senescence during obesity. Deletion of DBC1 protects preadipocytes against cellular senescence and senescence-driven inflammation. Furthermore, we show protection against cellular senescence in DBC1 KO mice during obesity. Finally, we found that DBC1 participates in the onset of cellular senescence in response to cell damage by mechanism that involves binding and inhibition of HDAC3. We propose that by regulating HDAC3 activity during cellular damage, DBC1 participates in the fate decision that leads to the establishment of cellular senescence and consequently to inflammation and tissue dysfunction during obesity.
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Affiliation(s)
- Carlos Escande
- Department of Anesthesia Mayo Clinic Rochester MN USA
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
- Institut Pasteur Montevideo Montevideo Uruguay
| | - Veronica Nin
- Department of Anesthesia Mayo Clinic Rochester MN USA
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
| | | | - Claudia C. Chini
- Department of Anesthesia Mayo Clinic Rochester MN USA
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
| | | | - Angela Mathison
- Laboratory of Epigenetics and Chromatin Dynamics Mayo Clinic Rochester MN USA
| | - Raul Urrutia
- Laboratory of Epigenetics and Chromatin Dynamics Mayo Clinic Rochester MN USA
- Epigenomic Translational Program Mayo Clinic Center for Individualized Medicine Rochester MN USA
| | - Tamar Tchkonia
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
| | - James L. Kirkland
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
| | - Eduardo N. Chini
- Department of Anesthesia Mayo Clinic Rochester MN USA
- Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
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28
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McCauley BS, Dang W. Histone methylation and aging: lessons learned from model systems. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2014; 1839:1454-62. [PMID: 24859460 DOI: 10.1016/j.bbagrm.2014.05.008] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2013] [Revised: 03/16/2014] [Accepted: 05/13/2014] [Indexed: 01/06/2023]
Abstract
Aging induces myriad cellular and, ultimately, physiological changes that cause a decline in an organism's functional capabilities. Although the aging process and the pathways that regulate it have been extensively studied, only in the last decade have we begun to appreciate that dynamic histone methylation may contribute to this process. In this review, we discuss recent work implicating histone methylation in aging. Loss of certain histone methyltransferases and demethylases changes lifespan in invertebrates, and alterations in histone methylation in aged organisms regulate lifespan and aging phenotypes, including oxidative stress-induced hormesis in yeast, insulin signaling in Caenorhabiditis elegans and mammals, and the senescence-associated secretory phenotype in mammals. In all cases where histone methylation has been shown to impact aging and aging phenotypes, it does so by regulating transcription, suggesting that this is a major mechanism of its action in this context. Histone methylation additionally regulates or is regulated by other cellular pathways that contribute to or combat aging. Given the numerous processes that regulate aging and histone methylation, and are in turn regulated by them, the role of histone methylation in aging is almost certainly underappreciated.
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Affiliation(s)
- Brenna S McCauley
- Huffington Center on Aging, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA.
| | - Weiwei Dang
- Huffington Center on Aging, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA; Department of Molecular and Human Genetics, Baylor College of Medicine, 1 Baylor Plaza, Houston, TX 77030, USA.
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29
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Chen QW, Zhu XY, Li YY, Meng ZQ. Epigenetic regulation and cancer (review). Oncol Rep 2013; 31:523-32. [PMID: 24337819 DOI: 10.3892/or.2013.2913] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Accepted: 09/04/2013] [Indexed: 11/06/2022] Open
Abstract
'Epigenetics' is defined as the inheritable changes in gene expression with no alterations in DNA sequences. Epigenetics is a rapidly expanding field, and the study of epigenetic regulation in cancer is emerging. Disruption of the epigenome is a fundamental mechanism in cancer, and several epigenetic drugs have been proven to prolong survival and to be less toxic than conventional chemotherapy. Promising results from combination clinical trials with DNA methylation inhibitors and histone deacetylase inhibitors have recently been reported, and data are emerging that describe molecular determinants of clinical responses. Despite significant advances, challenges remain, including a lack of predictive markers, unclear mechanisms of response and resistance, and rare responses in solid tumors. Preclinical studies are ongoing with novel classes of agents that target various components of the epigenetic machinery. In the present review, examples of studies that demonstrate the role of epigenetic regulation in human cancers with the focus on histone modifications and DNA methylation, and the recent clinical and translational data in the epigenetics field that have potential in cancer therapy are discussed.
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Affiliation(s)
- Q W Chen
- Department of Integrated Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - X Y Zhu
- Department of Integrated Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
| | - Y Y Li
- Department of Biochemistry and Molecular Biology, Peking University Health Science Center, Beijing 100191, P.R. China
| | - Z Q Meng
- Department of Integrated Oncology, Fudan University Shanghai Cancer Center; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, P.R. China
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30
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Abstract
p16(INK4a), located on chromosome 9p21.3, is lost among a cluster of neighboring tumor suppressor genes. Although it is classically known for its capacity to inhibit cyclin-dependent kinase (CDK) activity, p16(INK4a) is not just a one-trick pony. Long-term p16(INK4a) expression pushes cells to enter senescence, an irreversible cell-cycle arrest that precludes the growth of would-be cancer cells but also contributes to cellular aging. Importantly, loss of p16(INK4a) is one of the most frequent events in human tumors and allows precancerous lesions to bypass senescence. Therefore, precise regulation of p16(INK4a) is essential to tissue homeostasis, maintaining a coordinated balance between tumor suppression and aging. This review outlines the molecular pathways critical for proper p16(INK4a) regulation and emphasizes the indispensable functions of p16(INK4a) in cancer, aging, and human physiology that make this gene special.
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Affiliation(s)
- Kyle M LaPak
- Biomedical Research Tower, Rm 586, The Ohio State University, 460 W. 12th Avenue, Columbus, OH 43210.
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31
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Ye CG, Chen GG, Ho RLK, Merchant JL, He ML, Lai PBS. Epigenetic upregulation of Bak by ZBP-89 inhibits the growth of hepatocellular carcinoma. BIOCHIMICA ET BIOPHYSICA ACTA-MOLECULAR CELL RESEARCH 2013; 1833:2970-2979. [PMID: 23954442 DOI: 10.1016/j.bbamcr.2013.08.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Revised: 07/12/2013] [Accepted: 08/02/2013] [Indexed: 12/20/2022]
Abstract
Zinc-binding protein-89 regulates Bak to facilitate apoptosis in cancer cells. This study examined if zinc-binding protein-89 regulates Bak through an epigenetic mechanism in hepatocellular carcinoma. We first demonstrated that the expression of Bak was reduced but the levels of deoxyribonucleic acid methyltransferase 1 and histone deacetylase 3 were increased in hepatocellular carcinoma cancer tissues compared to the corresponding non-cancer tissues. Moreover, there was a negative correlation between Bak expression and deoxyribonucleic acid methyltransferase 1 levels in hepatocellular carcinoma. Administration of zinc-binding protein-89 downregulated histone deacetylase 3 expression and suppressed the activities of histone deacetylase and deoxyribonucleic acid methyltransferase, which led to maintenance of histone acetylation status, inhibited the binding of methyl-CpG-binding protein 2 to genomic deoxyribonucleic acid and demethylated CpG islands in the Bak promoter in hepatocellular carcinoma cells. Using the xenograft mouse tumor model, we demonstrated that zinc-binding protein-89 or inhibitors of either epigenetic enzymes could stimulate Bak expression, induce apoptosis, and arrest tumor growth and that the maximal effort was achieved when zinc-binding protein-89 and the enzyme inhibitors were used in combination. Conclusively, zinc-binding protein-89 upregulates the expression of Bak by targeting multiple components of the epigenetic pathway in hepatocellular carcinoma.
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Affiliation(s)
- Cai Guo Ye
- Department of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; China-America Cancer Research Institute, Guangdong Medical College, Dongguan 523808, PR China
| | - George G Chen
- Department of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong.
| | - Rocky L K Ho
- Department of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Juanita L Merchant
- Internal Medicine-Gastroenterology, University of Michigan, Ann Arbor, MI 48109, USA; Molecular and Integrative Physiology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Ming-Liang He
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong; School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
| | - Paul B S Lai
- Department of Surgery, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong
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32
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Zinc finger protein 148 is dispensable for primitive and definitive hematopoiesis in mice. PLoS One 2013; 8:e70022. [PMID: 23936136 PMCID: PMC3729454 DOI: 10.1371/journal.pone.0070022] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2013] [Accepted: 06/19/2013] [Indexed: 11/19/2022] Open
Abstract
Hematopoiesis is regulated by transcription factors that induce cell fate and differentiation in hematopoietic stem cells into fully differentiated hematopoietic cell types. The transcription factor zinc finger protein 148 (Zfp148) interacts with the hematopoietic transcription factor Gata1 and has been implicated to play an important role in primitive and definitive hematopoiesis in zebra fish and mouse chimeras. We have recently created a gene-trap knockout mouse model deficient for Zfp148, opening up for analyses of hematopoiesis in a conventional loss-of-function model in vivo. Here, we show that Zfp148-deficient neonatal and adult mice have normal or slightly increased levels of hemoglobin, hematocrit, platelets and white blood cells, compared to wild type controls. Hematopoietic lineages in bone marrow, thymus and spleen from Zfp148gt/gt mice were further investigated by flow cytometry. There were no differences in T-cells (CD4 and CD8 single positive cells, CD4 and CD8 double negative/positive cells) in either organ. However, the fraction of CD69- and B220-positive cells among lymphocytes in spleen was slightly lower at postnatal day 14 in Zfp148gt/gt mice compared to wild type mice. Our results demonstrate that Zfp148-deficient mice generate normal mature hematopoietic populations thus challenging earlier studies indicating that Zfp148 plays a critical role during hematopoietic development.
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33
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Sayin VI, Nilton A, Ibrahim MX, Ågren P, Larsson E, Petit MM, Hultén LM, Ståhlman M, Johansson BR, Bergo MO, Lindahl P. Zfp148 deficiency causes lung maturation defects and lethality in newborn mice that are rescued by deletion of p53 or antioxidant treatment. PLoS One 2013; 8:e55720. [PMID: 23405202 PMCID: PMC3566028 DOI: 10.1371/journal.pone.0055720] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Accepted: 12/29/2012] [Indexed: 12/18/2022] Open
Abstract
The transcription factor Zfp148 (Zbp-89, BFCOL, BERF1, htβ) interacts physically with the tumor suppressor p53 and is implicated in cell cycle control, but the physiological role of Zfp148 remains unknown. Here we show that Zfp148 deficiency leads to respiratory distress and lethality in newborn mice. Zfp148 deficiency prevented structural maturation of the prenatal lung without affecting type II cell differentiation or surfactant production. BrdU analyses revealed that Zfp148 deficiency caused proliferation arrest of pulmonary cells at E18.5–19.5. Similarly, Zfp148-deficient fibroblasts exhibited proliferative arrest that was dependent on p53, raising the possibility that cell stress is part of the underlying mechanism. Indeed, Zfp148 deficiency lowered the threshold for activation of p53 under oxidative conditions. Moreover, both in vivo and cellular phenotypes were rescued on Trp53+/− or Trp53−/− backgrounds and by antioxidant treatment. Thus, Zfp148 prevents respiratory distress and lethality in newborn mice by attenuating oxidative stress–dependent p53-activity during the saccular stage of lung development. Our results establish Zfp148 as a novel player in mammalian lung maturation and demonstrate that Zfp148 is critical for cell cycle progression in vivo.
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MESH Headings
- Animals
- Animals, Newborn
- Antioxidants/pharmacology
- Apoptosis
- Blotting, Southern
- Blotting, Western
- Cell Cycle
- Cell Proliferation
- Cells, Cultured
- DNA-Binding Proteins/physiology
- Embryo, Mammalian/cytology
- Embryo, Mammalian/drug effects
- Embryo, Mammalian/metabolism
- Female
- Fibroblasts/cytology
- Fibroblasts/drug effects
- Fibroblasts/metabolism
- Gene Deletion
- Genes, Lethal
- Immunoenzyme Techniques
- Lung/drug effects
- Lung/embryology
- Lung/metabolism
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Oxidative Stress/drug effects
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Respiratory Tract Diseases/genetics
- Respiratory Tract Diseases/pathology
- Respiratory Tract Diseases/prevention & control
- Reverse Transcriptase Polymerase Chain Reaction
- Transcription Factors/physiology
- Tumor Suppressor Protein p53/deficiency
- Tumor Suppressor Protein p53/genetics
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Affiliation(s)
- Volkan I. Sayin
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Biochemistry, Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Anna Nilton
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Mohamed X. Ibrahim
- Sahlgrenska Cancer Center, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Pia Ågren
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Erik Larsson
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Biochemistry, Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Marleen M. Petit
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Lillemor Mattsson Hultén
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Marcus Ståhlman
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Bengt R. Johansson
- Department of Biochemistry, Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Martin O. Bergo
- Sahlgrenska Cancer Center, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Per Lindahl
- Wallenberg Laboratory, Institute of Medicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Biochemistry, Institute of Biomedicine, The Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- * E-mail:
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34
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Hemida MG, Ye X, Zhang HM, Hanson PJ, Liu Z, McManus BM, Yang D. MicroRNA-203 enhances coxsackievirus B3 replication through targeting zinc finger protein-148. Cell Mol Life Sci 2013; 70:277-91. [PMID: 22842794 PMCID: PMC11113921 DOI: 10.1007/s00018-012-1104-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 07/17/2012] [Accepted: 07/19/2012] [Indexed: 10/28/2022]
Abstract
Coxsackievirus B3 (CVB3) is the primary causal agent of viral myocarditis. During infection, it hijacks host genes to favour its own replication. However, the underlying mechanism is still unclear. Although the viral receptor is an important factor for viral infectivity, other factors such as microRNAs (miRNA) may also play an essential role in its replication after host cell entry. miRNAs are post-transcriptional gene regulators involved in various fundamental biological processes as well as in diseases. To identify miRNAs involved in CVB3 pathogenesis, we performed microarray analysis of miRNAs using CVB3-infected murine hearts and identified miR-203 as one of the most upregulated candidates. We found that miR-203 upregulation is through the activation of protein kinase C/transcription factor AP-1 pathway. We further identified zinc finger protein-148 (ZFP-148), a transcription factor, as a novel target of miR-203. Ectopic expression of miR-203 downregulated ZFP-148 translation, increased cell viability and subsequently enhanced CVB3 replication. Silencing of ZFP-148 by siRNA showed similar effects on CVB3 replication. Finally, analyses of the signalling cascade downstream of ZFP-148 revealed that miR-203-induced suppression of ZFP-148 differentially regulated the expression of prosurvival and proapoptotic genes of the Bcl-2 family proteins as well as the cell cycle regulators. This altered gene expression promoted cell survival and growth, which provided a favourable environment for CVB3 replication, contributing to the further damage of the infected cells. Taken together, this study identified a novel target of miR-203 and revealed, for the first time, the molecular link between miR-203/ZFP-148 and the pathogenesis of CVB3.
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Affiliation(s)
- Maged Gomaa Hemida
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Xin Ye
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Huifang M. Zhang
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Paul J. Hanson
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Zhen Liu
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Bruce M. McManus
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
| | - Decheng Yang
- Department of Pathology and Laboratory Medicine, The James Hogg Research Center, The Institute for Heart and Lung Health, St. Paul’s Hospital, University of British Columbia, 1081 Burrard Street, Vancouver, BC V6Z 1Y6 Canada
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35
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Corrigendum. FEBS J 2012. [DOI: 10.1111/j.1742-4658.2012.08740.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Wang X, Huang Y, Zhao J, Zhang Y, Lu J, Huang B. Suppression of PRMT6-mediated arginine methylation of p16 protein potentiates its ability to arrest A549 cell proliferation. Int J Biochem Cell Biol 2012; 44:2333-41. [PMID: 23032699 DOI: 10.1016/j.biocel.2012.09.015] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2012] [Revised: 09/14/2012] [Accepted: 09/24/2012] [Indexed: 10/27/2022]
Abstract
The tumor suppressor p16(INK4A) (p16) blocks the cell cycle progression by inhibiting phosphorylation of the retinoblastoma protein. We describe here a novel aspect of the posttranslational control that has an important functional consequence on p16 protein. We first discovered that the p16 protein was methylated in various cell lineages. We then determined that the arginine 22, 131 and 138 of p16 were the main methylation sites. Western blotting and TUNEL analyses revealed that the p16 protein bearing these point mutations induced a higher apoptosis ratio than wild-type p16 in A549 cells. Furthermore, co-immunoprecipitation assays suggested that decrease of p16 arginine methylation level promoted the association of p16 with CDK4. Additionally, we determined that the protein arginine methyltransferase 6 (PRMT6) was responsible for the p16 arginine methylation. Results from flow cytometric analysis demonstrated that PRMT6 overexpression counteracted the cell cycle arrest at G1 phase induced by wild-type p16 in A549 cells. We also provided evidence that PRMT6 was able to interact with p16, and that the intensity of p16-CDK4 association was reduced upon PRMT6 overexpression. Together, data presented in this report establish that methylation at specific arginine residues of p16 protein by PRMT6 may be critical for the activity of p16.
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Affiliation(s)
- Xiuli Wang
- The Institute of Genetics and Cytology, Northeast Normal University, 5268 Renmin Street, Changchun 130024, China
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37
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Zheng S, Li Q, Zhang Y, Balluff Z, Pan YX. Histone deacetylase 3 (HDAC3) participates in the transcriptional repression of the p16 (INK4a) gene in mammary gland of the female rat offspring exposed to an early-life high-fat diet. Epigenetics 2012; 7:183-90. [PMID: 22395468 DOI: 10.4161/epi.7.2.18972] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Maternal exposure to environmental agents throughout pregnancy and lactation may affect offspring's mammary gland growth and alter the epigenome. This may predispose the offspring's mammary glands to be more susceptible to carcinogenesis. The purpose of this study was to examine the effect of a maternal high-fat diet on the regulation of p16 (INK4a) gene expression in the mammary gland of rat offspring. Timed-pregnant Sprague-Dawley rats were fed one of the two diets, a control (C, 16% of fat) or a high fat (HF, 45% of fat) diet, throughout gestation and lactation and sacrificed at 12 weeks of age. Compared with C, HF offspring showed a decrease of p16 (INK4a) gene expression in the mammary gland at both mRNA and protein levels. Chromatin immunoprecipitation (ChIP) assay demonstrated that the downregulation of p16 (INK4a) transcription in HF offspring was associated with reduced acetylation of histone H4 and increased recruitment of histone deacetylase 3 (HDAC3) within the p16 (INK4a) promoter region, but was not associated with acetylation of histone H3 or HDAC1. Methylated DNA immunoprecipitation (MeDIP) did not detect differences in methylation at different regions of the p16 (INK4a) gene between C and HF offspring. We conclude that maternal high fat exposure represses p16 (INK4a) gene expression in the mammary gland of offspring through changes of histone modifications and HDAC3 binding activity within the regulatory regions of the p16 (INK4a) gene.
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Affiliation(s)
- Shasha Zheng
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, Urbana, IL, USA
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38
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Role of p16(INK4A) in Replicative Senescence and DNA Damage-Induced Premature Senescence in p53-Deficient Human Cells. Biochem Res Int 2012; 2012:951574. [PMID: 22924132 PMCID: PMC3424640 DOI: 10.1155/2012/951574] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2012] [Accepted: 06/21/2012] [Indexed: 11/18/2022] Open
Abstract
The p16(INK4A) (hereafter p16) tumor suppressor is encoded by the INK4A/ARF locus which is among the most commonly dysregulated sequences in human cancer. By inhibiting cyclin-dependent kinases, p16 activates the G1-S checkpoint, and this response is often considered to be critical for establishing a senescence-like growth arrest. Not all studies support a universal role for p16 in senescence. Single-cell analysis of noncancerous human fibroblast cultures undergoing senescence as a function of culture age (replicative senescence) has revealed that p16 is not expressed in the majority (>90%) of cells that exhibit features of senescence (e.g., flattened and enlarged morphology coupled with senescence-associated β-galactosidase expression), ruling out a requirement for p16 in this process. In addition, ionizing radiation triggers premature senescence in human cancer cell lines that do not express p16. These observations are made with cells that express wild-type p53, a key mediator of the DNA damage response. In this paper, we examine the growing evidence suggesting a negative regulatory relationship between p16 and p53 and discuss recent reports that implicate a role for p16 in replicative senescence and ionizing radiation-induced premature senescence in human cells that lack wild-type p53 function.
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Zhang X, Zhou D, Strakovsky R, Zhang Y, Pan YX. Hepatic cellular senescence pathway genes are induced through histone modifications in a diet-induced obese rat model. Am J Physiol Gastrointest Liver Physiol 2012; 302:G558-64. [PMID: 22194422 PMCID: PMC6732737 DOI: 10.1152/ajpgi.00032.2011] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2011] [Accepted: 12/21/2011] [Indexed: 01/31/2023]
Abstract
Overnutrition, such as a high-fat (HF) diet, is a feature followed by some in developed nations that leads to obesity and fatty liver disease. In rats, when fed a fat-high diet, some develop obesity (obesity prone, OP) while others display an obesity-resistant (OR) phenotype. The present study investigated the differences between OP and OR rats on their activation of hepatic cellular senescence pathways on a HF diet. Male OP and OR rats were fed a HF diet containing 45% kcal from fat for 13 wk, and livers were collected for analysis by quantitative real-time PCR, Western blot, and chromatin immunoprecipitation. OP rats were 41% heavier than OR rats, despite consuming the same amount of food. Triacylglycerol levels were increased significantly in both plasma and liver of OP rats. Gene analysis demonstrated a significant increase of both the amount and the transcription rates of p16(INK4a) and p21(Cip1) mRNA in OP rats. The increased p16(INK4a) and p21(Cip1) also caused a significant decrease in the level of phosphorylation of retinoblastoma protein. In OP rats, the increase of p16(INK4a) was associated with the higher acetylation levels of histone H4 at the p16(INK4a) promoter and coding region and lower methylation level of histone H3 lysine-27 in the p16(INK4a) coding region. The increase of p21(Cip1) was associated with increased acetylation of both histone H3 and H4 and decreased trimethylation of histone H3 lysine-27 at the p21(Cip1) promoter. In the p21(Cip1) coding region, dimethylation of histone H3 lysine-4 was significantly higher (P <0.05) in livers of OP rats compared with OR rats.
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Affiliation(s)
- Xiyuan Zhang
- Department of Food Science and Human Nutrition, University of Illinois at Urbana-Champaign, 61801, USA
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Zhang CZY, Cao Y, Yun JP, Chen GG, Lai PBS. Increased expression of ZBP-89 and its prognostic significance in hepatocellular carcinoma. Histopathology 2012; 60:1114-24. [PMID: 22372401 DOI: 10.1111/j.1365-2559.2011.04136.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
AIMS ZBP-89 plays a role in cell growth and death. Its expression in hepatocellular carcinoma (HCC) is not well documented. This study aimed to analyse ZBP-89 expression in HCC. METHODS AND RESULTS We examined ZBP-89 expression in five HCC cell lines and 182 HCC tissue samples by reverse transcription-polymerase chain reaction (RT-PCR), Western blot analysis and immunofluorescence staining. Our results showed that the expression of ZBP-89 was higher in HCC than adjacent non-tumour liver, at both mRNA and protein levels. ZBP-89 was localized in the nucleus in most HCC tissue samples, but was found in the cytoplasm in 11.5% of cases. Patient survival in those tumours showing high ZBP-89 expression was better than in those with low expression. High ZBP-89 expression tended to be more common in World Health Organization (WHO) grade I than grades II-IV HCC. There was a significant association between HBV positivity and high ZBP-89 expression. Colony formation was reduced dramatically in those HCC cell lines in which ZBP-89 overexpression was demonstrated; this appeared to correlate with increased apoptosis, inferred by finding elevated levels of cleaved poly(ADP-ribose)polymerases (PARP), the probable mechanisms for which may involve increased p53 or p21 expression. CONCLUSIONS ZBP-89 has anti-tumour properties and is a potential biomarker for prognosis of HCC.
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Affiliation(s)
- Chris Z Y Zhang
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, NT, Hong Kong
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41
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Noguchi S, Mori T, Otsuka Y, Yamada N, Yasui Y, Iwasaki J, Kumazaki M, Maruo K, Akao Y. Anti-oncogenic microRNA-203 induces senescence by targeting E2F3 protein in human melanoma cells. J Biol Chem 2012; 287:11769-77. [PMID: 22354972 DOI: 10.1074/jbc.m111.325027] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
MicroRNAs regulate gene expression by repressing translation or directing sequence-specific degradation of their complementary mRNA. We recently reported that miR-203 is down-regulated, and its exogenous expression inhibits cell growth in canine oral malignant melanoma tissue specimens as well as in canine and human malignant melanoma cells. A microRNA target database predicted E2F3 and ZBP-89 as putative targets of microRNA-203 (miR-203). The expression levels of E2F3a, E2F3b, and ZBP-89 were markedly up-regulated in human malignant melanoma Mewo cells compared with those in human epidermal melanocytes. miR-203 significantly suppressed the luciferase activity of reporter plasmids containing the 3'-UTR sequence of either E2F3 or ZBP-89 complementary to miR-203. The ectopic expression of miR-203 in melanoma cells reduced the levels of E2F3a, E2F3b, and ZBP-89 protein expression. At the same time, miR-203 induced cell cycle arrest and senescence phenotypes, such as elevated expression of hypophosphorylated retinoblastoma and other markers for senescence. Silencing of E2F3, but not of ZBP-89, inhibited cell growth and induced cell cycle arrest and senescence. These results demonstrate a novel role for miR-203 as a tumor suppressor acting by inducing senescence in melanoma cells.
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Affiliation(s)
- Shunsuke Noguchi
- United Graduate School of Veterinary Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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Promoter cloning and characterization of the human programmed cell death protein 4 (pdcd4) gene: evidence for ZBP-89 and Sp-binding motifs as essential Pdcd4 regulators. Biosci Rep 2012; 32:281-97. [DOI: 10.1042/bsr20110045] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Pdcd4 (programmed cell death protein 4) is an important novel tumour suppressor inhibiting transformation, translation, invasion and intravasation, and its expression is down-regulated in several cancers. However, little is known about the transcriptional regulation and the promoter of this important tumour suppressor. So far the following is the first comprehensive study to describe the regulation of Pdcd4 transcription by ZBP-89 (zinc-finger-binding protein 89), besides characterizing the gene promoter. We identified the transcriptional start sites of the human pdcd4 promoter, a functional CCAAT-box, and the basal promoter region. Within this basal region, computer-based analysis revealed several potential binding sites for ZBPs, especially for Sp (specificity protein) family members and ZBP-89. We identified four Sp1/Sp3/Sp4-binding elements to be indispensable for basal promoter activity. However, overexpression of Sp1 and Sp3 was not sufficient to enhance Pdcd4 protein expression. Analysis in different solid cancer cell lines showed a significant correlation between pdcd4 and zbp-89 mRNA amounts. In contrast with Sp transcription factors, overexpression of ZBP-89 led to an enhanced expression of Pdcd4 mRNA and protein. Additionally, specific knockdown of ZBP-89 resulted in a decreased pdcd4 gene expression. Reporter gene analysis showed a significant up-regulation of basal promoter activity by co-transfection with ZBP-89, which could be abolished by mithramycin treatment. Predicted binding of ZBP-89 to the basal promoter was confirmed by EMSA (electrophoretic mobility-shift assay) data and supershift analysis for ZBP-89. Taken together, data for the first time implicate ZBP-89 as a regulator of Pdcd4 by binding to the basal promoter either alone or by interacting with Sp family members.
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Rayess H, Wang MB, Srivatsan ES. Cellular senescence and tumor suppressor gene p16. Int J Cancer 2011; 130:1715-25. [PMID: 22025288 DOI: 10.1002/ijc.27316] [Citation(s) in RCA: 507] [Impact Index Per Article: 39.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2011] [Accepted: 10/14/2011] [Indexed: 12/14/2022]
Abstract
Cellular senescence is an irreversible arrest of cell growth. Biochemical and morphological changes occur during cellular senescence, including the formation of a unique cellular morphology such as flattened cytoplasm. Function of mitochondria, endoplasmic reticulum and lysosomes are affected resulting in the inhibition of lysosomal and proteosomal pathways. Cellular senescence can be triggered by a number of factors including, aging, DNA damage, oncogene activation and oxidative stress. While the molecular mechanism of senescence involves p16 and p53 tumor suppressor genes and telomere shortening, this review is focused on the mechanism of p16 control. The p16-mediated senescence acts through the retinoblastoma (Rb) pathway inhibiting the action of the cyclin dependant kinases leading to G1 cell cycle arrest. Rb is maintained in a hypophosphorylated state resulting in the inhibition of transcription factor E2F1. Regulation of p16 expression is complex and involves epigenetic control and multiple transcription factors. PRC1 (Pombe repressor complex (1) and PRC2 (Pombe repressor complex (2) proteins and histone deacetylases play an important role in the promoter hypermethylation for suppressing p16 expression. While transcription factors YY1 and Id1 suppress p16 expression, transcription factors CTCF, Sp1 and Ets family members activate p16 transcription. Senescence occurs with the inactivation of suppressor elements leading to the enhanced expression of p16.
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Affiliation(s)
- Hani Rayess
- Department of Surgery, VA Greater Los Angeles Healthcare system, West Los Angeles, CA, USA
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44
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Xu Y, Hu B, Choi AJ, Gopalan B, Lee BH, Kalady MF, Church JM, Ting AH. Unique DNA methylome profiles in CpG island methylator phenotype colon cancers. Genome Res 2011; 22:283-91. [PMID: 21990380 DOI: 10.1101/gr.122788.111] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A subset of colorectal cancers was postulated to have the CpG island methylator phenotype (CIMP), a higher propensity for CpG island DNA methylation. The validity of CIMP, its molecular basis, and its prognostic value remain highly controversial. Using MBD-isolated genome sequencing, we mapped and compared genome-wide DNA methylation profiles of normal, non-CIMP, and CIMP colon specimens. Multidimensional scaling analysis revealed that each specimen could be clearly classified as normal, non-CIMP, and CIMP, thus signifying that these three groups have distinctly different global methylation patterns. We discovered 3780 sites in various genomic contexts that were hypermethylated in both non-CIMP and CIMP colon cancers when compared with normal colon. An additional 2026 sites were found to be hypermethylated in CIMP tumors only; and importantly, 80% of these sites were located in CpG islands. These data demonstrate on a genome-wide level that the additional hypermethylation seen in CIMP tumors occurs almost exclusively at CpG islands and support definitively that these tumors were appropriately named. When these sites were examined more closely, we found that 25% were adjacent to sites that were also hypermethylated in non-CIMP tumors. Thus, CIMP is also characterized by more extensive methylation of sites that are already prone to be hypermethylated in colon cancer. These observations indicate that CIMP tumors have specific defects in controlling both DNA methylation seeding and spreading and serve as an important first step in delineating molecular mechanisms that control these processes.
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Affiliation(s)
- Yaomin Xu
- Quantitative Health Sciences, Lerner Research Institute, Cleveland Clinic Foundation, Cleveland, Ohio 44195, USA
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45
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Cao N, Yao ZX. The hemangioblast: from concept to authentication. Anat Rec (Hoboken) 2011; 294:580-8. [PMID: 21370498 DOI: 10.1002/ar.21360] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2010] [Accepted: 01/13/2011] [Indexed: 11/06/2022]
Abstract
The hemangioblast hypothesis has been hotly debated for over a century. Hemangioblasts are defined as multipotent cells that can give rise to both hematopoietic cells and endothelial cells. The existence of hemangioblasts has now been confirmed and many important molecules and several signaling pathways are involved in their generation and differentiation. Fibroblast growth factor, renin-angiotensin system and runt-related transcription factor 1 (Runx1) direct the formation of hemangioblasts through highly selective gene expression patterns. On the other hand, the hemogenic endothelium theory and a newly discovered pattern of hematopoietic/endothelial differentiation make the genesis of hemangioblasts more complicated. But how hemangioblasts are formed and how hematopoietic cells or endothelial cells are derived from remains largely unknown. Here we summarize the current knowledge of the signaling pathways and molecules involved in hemangioblast development and suggest some future clinical applications.
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Affiliation(s)
- Nian Cao
- Department of Physiology, Third Military Medical University, Chongqing, China
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46
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Wang YJ, Chang H, Kuo YC, Wang CK, Siao SH, Chang LW, Lin P. Synergism between 2,3,7,8-tetrachlorodibenzo-p-dioxin and 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone on lung tumor incidence in mice. JOURNAL OF HAZARDOUS MATERIALS 2011; 186:869-875. [PMID: 21167638 DOI: 10.1016/j.jhazmat.2010.11.082] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/13/2010] [Revised: 10/26/2010] [Accepted: 11/20/2010] [Indexed: 05/30/2023]
Abstract
Although 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) is classified as a human carcinogen, TCDD only induced oxidative DNA damages. In our present study, we combined TCDD with 4-(methylnitrosamino)-1-(3-pyridyl)-1-butanone (NNK) to investigate their tumorigenic effects on lung tumor formation in A/J mice. Application of NNK at a tumorigenic dose (2 mg/mouse) induced lung adenoma in both male and female A/J mice. Neither application of NNK at a non-tumorigenic dose (1 mg/mouse) nor repeated application of TCDD alone increased tumor incidence. Following the single injection of NNK at a non-tumorigenic dose (1 mg/mouse), repeated application of TCDD significantly increased the lung tumor incidence in female, but not in male, A/J mice 24 weeks later. Utilizing the real-time RT-PCR array, we found that P16 mRNA was significantly reduced in female lung, but not male lung, of NNK/TCDD co-treated A/J mice. With immunohistochemical staining, we confirmed that nuclear P16 protein was reduced in the lungs of NNK/TCDD co-treated female mice. These data suggest that P16 reduction at least partially contributed to synergistic effects of TCDD in lung tumorigenesis.
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Affiliation(s)
- Ying-Jan Wang
- Department of Environmental and Occupational Health, National Cheng Kung University, Medical College, Tainan, Taiwan
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47
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Pawlik A, Alibert O, Baulande S, Vaigot P, Tronik-Le Roux D. Transcriptome characterization uncovers the molecular response of hematopoietic cells to ionizing radiation. Radiat Res 2011; 175:66-82. [PMID: 21175349 DOI: 10.1667/rr2282.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ionizing radiation causes rapid and acute suppression of hematopoietic cells that manifests as the hematopoietic syndrome. However, the roles of molecules and regulatory pathways induced in vivo by irradiation of different hematopoietic cells have not been completely elaborated. Using a strategy that combined different microarray bioinformatics tools, we identified gene networks that might be involved in the early response of hematopoietic cells radiation response in vivo. The grouping of similar time-ordered gene expression profiles using quality threshold clustering enabled the successful identification of common binding sites for 56 transcription factors that may be involved in the regulation of the early radiation response. We also identified novel genes that are responsive to the transformation-related protein 53; all of these genes were biologically validated in p53-transgenic null mice. Extension of the analysis to purified bone marrow cells including highly purified long-term hematopoietic stem cells, combined with functional classification, provided evidence of gene expression modifications that were largely unknown in this primitive population. Our methodology proved particularly useful for analyzing the transcriptional regulation of the complex ionizing radiation response of hematopoietic cells. Our data may help to elucidate the molecular mechanisms involved in tissue radiosensitivity and to identify potential targets for improving treatment in radiation emergencies.
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48
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Epigenetic regulation of cell life and death decisions and deregulation in cancer. Essays Biochem 2010; 48:121-46. [PMID: 20822491 DOI: 10.1042/bse0480121] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
For every cell, there is a time to live and a time to die. It is apparent that cell life and death decisions are taken by individual cells based on their interpretation of physiological or non-physiological stimuli, or their own self-assessment of internal damage or changes in their environment. Apoptosis or programmed cell death is a key regulator of physiological growth control and regulation of tissue homoeostasis. One of the most important advances in cancer research in recent years is the recognition that cell death, mostly by apoptosis, is crucially involved in the regulation of tumour formation and also critically determines treatment response. The initiation and progression of cancer, traditionally seen as a genetic disease, is now realized to involve epigenetic abnormalities along with genetic alterations. The study of epigenetic mechanisms in cancer, such as DNA methylation, histone modifications and microRNA expression, has revealed a plethora of events that contribute to the neoplastic phenotype through stable changes in the expression of genes critical to cell death pathways. A better understanding of the epigenetic molecular events that regulate apoptosis, together with the reversible nature of epigenetic aberrations, should contribute to the emergence of the promising field of epigenetic therapy.
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Discovering cooperative relationships of chromatin modifications in human T cells based on a proposed closeness measure. PLoS One 2010; 5:e14219. [PMID: 21151929 PMCID: PMC2997069 DOI: 10.1371/journal.pone.0014219] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2010] [Accepted: 11/08/2010] [Indexed: 12/03/2022] Open
Abstract
Background Eukaryotic transcription is accompanied by combinatorial chromatin modifications that serve as functional epigenetic markers. Composition of chromatin modifications specifies histone codes that regulate the associated gene. Discovering novel chromatin regulatory relationships are of general interest. Methodology/Principal Findings Based on the premise that the interaction of chromatin modifications is hypothesized to influence CpG methylation, we present a closeness measure to characterize the regulatory interactions of epigenomic features. The closeness measure is applied to genome-wide CpG methylation and histone modification datasets in human CD4+T cells to select a subset of potential features. To uncover epigenomic and genomic patterns, CpG loci are clustered into nine modules associated with distinct chromatin and genomic signatures based on terms of biological function. We then performed Bayesian network inference to uncover inherent regulatory relationships from the feature selected closeness measure profile and all nine module-specific profiles respectively. The global and module-specific network exhibits topological proximity and modularity. We found that the regulatory patterns of chromatin modifications differ significantly across modules and that distinct patterns are related to specific transcriptional levels and biological function. DNA methylation and genomic features are found to have little regulatory function. The regulatory relationships were partly validated by literature reviews. We also used partial correlation analysis in other cells to verify novel regulatory relationships. Conclusions/Significance The interactions among chromatin modifications and genomic elements characterized by a closeness measure help elucidate cooperative patterns of chromatin modification in transcriptional regulation and help decipher complex histone codes.
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50
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Kim HC, Choi KC, Choi HK, Kang HB, Kim MJ, Lee YH, Lee OH, Lee J, Kim YJ, Jun W, Jeong JW, Yoon HG. HDAC3 selectively represses CREB3-mediated transcription and migration of metastatic breast cancer cells. Cell Mol Life Sci 2010; 67:3499-510. [PMID: 20473547 PMCID: PMC11115716 DOI: 10.1007/s00018-010-0388-5] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2010] [Revised: 04/19/2010] [Accepted: 04/23/2010] [Indexed: 12/19/2022]
Abstract
We identified CREB3 as a novel HDAC3-interacting protein in a yeast two-hybrid screen for HDAC3-interacting proteins. Among all class I HDACs, CREB3 specifically interacts with HDAC3, in vitro and in vivo. HDAC3 efficiently inhibited CREB3-enhanced NF-κB activation, whereas the other class I HDACs did not alter NF-κB-dependent promoter activities or the expression of NF-κB target genes. Importantly, both knock-down of CREB3 and overexpression of HDAC3 suppressed the transcriptional activation of the novel CREB3-regulated gene, CXCR4. Furthermore, CREB3 was shown to bind to the CRE element in the CXCR4 promoter and to activate the transcription of the CXCR4 gene by causing dissociation of HDAC3 and subsequently increasing histone acetylation. Importantly, both the depletion of HDAC3 and the overexpression of CREB3 substantially increased the migration of MDA-MB-231 metastatic breast cancer cells. Taken together, these findings suggest that HDAC3 selectively represses CREB3-mediated transcriptional activation and chemotactic signalling in human metastatic breast cancer cells.
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Affiliation(s)
- Han-Cheon Kim
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Kyung-Chul Choi
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hyo-Kyoung Choi
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Hee-Bum Kang
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Mi-Jeong Kim
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Yoo-Hyun Lee
- Department of Food and Nutrition, The University of Suwon, Suwon, Korea
| | - Ok-Hee Lee
- Severance Hospital Integrative Research Institute for Cerebral and Cardiovascular Disease, Yonsei University Health System, Seoul, Korea
| | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin-si, Kyunggi-do 446-701 South Korea
| | - Young Jun Kim
- Department of Food and Biotechnology, Korea University, Jochiwon-eup, Yeongi-gun, Chungnam Korea
| | - Woojin Jun
- Department of Food and Nutrition, Chonnam National University, Gwangju, Korea
| | - Jae-Wook Jeong
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030 USA
| | - Ho-Geun Yoon
- Department of Biochemistry and Molecular Biology, Center for Chronic Metabolic Disease Research, Brain Korea 21 Project for Medical Sciences, Severance Medical Research Institute, Yonsei University College of Medicine, Seoul, Korea
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