1
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Adlanmerini M, Fontaine C, Gourdy P, Arnal JF, Lenfant F. Segregation of nuclear and membrane-initiated actions of estrogen receptor using genetically modified animals and pharmacological tools. Mol Cell Endocrinol 2022; 539:111467. [PMID: 34626731 DOI: 10.1016/j.mce.2021.111467] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 09/06/2021] [Accepted: 09/28/2021] [Indexed: 11/23/2022]
Abstract
Estrogen receptor alpha (ERα) and beta (ERβ) are members of the nuclear receptor superfamily, playing widespread functions in reproductive and non-reproductive tissues. Beside the canonical function of ERs as nuclear receptors, in this review, we summarize our current understanding of extra-nuclear, membrane-initiated functions of ERs with a specific focus on ERα. Over the last decade, in vivo evidence has accumulated to demonstrate the physiological relevance of this ERα membrane-initiated-signaling from mouse models to selective pharmacological tools. Finally, we discuss the perspectives and future challenges opened by the integration of extra-nuclear ERα signaling in physiology and pathology of estrogens.
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Affiliation(s)
- Marine Adlanmerini
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, Université de Toulouse 3 and CHU de Toulouse, Toulouse, France
| | - Coralie Fontaine
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, Université de Toulouse 3 and CHU de Toulouse, Toulouse, France
| | - Pierre Gourdy
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, Université de Toulouse 3 and CHU de Toulouse, Toulouse, France
| | - Jean-François Arnal
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, Université de Toulouse 3 and CHU de Toulouse, Toulouse, France
| | - Françoise Lenfant
- I2MC, Institut National de la Santé et de la Recherche Médicale (INSERM) U1297, Université de Toulouse 3 and CHU de Toulouse, Toulouse, France.
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2
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Buric AJ, Dickerhoff J, Yang D. Novel DNA Bis-Intercalator XR5944 as a Potent Anticancer Drug-Design and Mechanism of Action. Molecules 2021; 26:molecules26144132. [PMID: 34299405 PMCID: PMC8304338 DOI: 10.3390/molecules26144132] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 06/18/2021] [Accepted: 06/29/2021] [Indexed: 02/06/2023] Open
Abstract
This review is dedicated to Professor William A. Denny’s discovery of XR5944 (also known as MLN944). XR5944 is a DNA-targeted agent with exceptionally potent antitumor activity and a novel DNA binding mode, bis-intercalation and major groove binding, as well as a novel mechanism of action, transcription inhibition. This novel anticancer compound represents a remarkable accomplishment resulting from two decades of drug discovery by Professor Denny and coworkers. Here, we review our work on the structural study of the DNA binding mode of XR5944 and mechanistic study of XR5944 action.
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Affiliation(s)
- Adam J. Buric
- College of Pharmacy, Medicinal Chemistry and Molecular Pharmacology, 575 W Stadium Ave, Purdue University, West Lafayette, IN 47907, USA; (A.J.B.); (J.D.)
| | - Jonathan Dickerhoff
- College of Pharmacy, Medicinal Chemistry and Molecular Pharmacology, 575 W Stadium Ave, Purdue University, West Lafayette, IN 47907, USA; (A.J.B.); (J.D.)
| | - Danzhou Yang
- College of Pharmacy, Medicinal Chemistry and Molecular Pharmacology, 575 W Stadium Ave, Purdue University, West Lafayette, IN 47907, USA; (A.J.B.); (J.D.)
- Center for Cancer Research, Purdue University, 201 S University St, West Lafayette, IN 47906, USA
- Department of Chemistry, Purdue University, West Lafayette, IN 47906, USA
- Purdue Institute for Drug Discovery, West Lafayette, IN 47906, USA
- Correspondence: ; Tel.: +1-765-494-8148
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3
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Jones BG, Sealy RE, Penkert RR, Surman SL, Birshtein BK, Xu B, Neale G, Maul RW, Gearhart PJ, Hurwitz JL. From Influenza Virus Infections to Lupus: Synchronous Estrogen Receptor α and RNA Polymerase II Binding Within the Immunoglobulin Heavy Chain Locus. Viral Immunol 2020; 33:307-315. [PMID: 32105583 DOI: 10.1089/vim.2019.0144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Males and females respond to pathogens differently and exhibit significantly different frequencies of autoimmune disease. For example, vaccinated adult females control influenza virus better than males, but females suffer systemic lupus erythematosus at a 9:1 frequency compared to males. Numerous explanations have been offered for these sex differences, but most have involved indirect mechanisms by which estrogen, a nuclear hormone, modifies cell barriers or immunity. In search of a direct mechanism, we examined the binding of estrogen receptor α (ERα), a class I nuclear hormone receptor, to the immunoglobulin heavy chain locus. Here, we show that in purified murine B cells, ERα and RNA polymerase II (RNA Pol II) exhibit extraordinarily similar DNA binding patterns. We further demonstrate that ERα preferentially binds adenosine-cytidine (AC)-repeats in the immunoglobulin heavy chain locus when supplemental estrogen is added to purified, lipopolysaccharide-activated B cells. Based on these and previous data, we hypothesize that (i) estrogen guides the binding of ERα and its RNA Pol II partner within the locus, which in turn instructs sterile transcription and class switch recombination (CSR), (ii) ERα binding to AC-repeats modifies the DNA architecture and loops associated with CSR, and (iii) by these mechanisms, estrogen instructs antibody expression. By targeting ERα-DNA interactions in the immunoglobulin heavy chain locus, clinicians may ultimately enhance antibody responses in the context of infectious diseases and reduce antibody responses in the context of allergic or autoimmune reactions.
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Affiliation(s)
- Bart G Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Robert E Sealy
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Rhiannon R Penkert
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Sherri L Surman
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Barbara K Birshtein
- Department of Cell Biology, Albert Einstein College of Medicine, Bronx, New York, USA
| | - Beisi Xu
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Geoffrey Neale
- Hartwell Center for Bioinformatics and Biotechnology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - Robert W Maul
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland, USA
| | - Patricia J Gearhart
- National Institute on Aging, National Institutes of Health, Baltimore, Maryland, USA
| | - Julia L Hurwitz
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, USA
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4
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Jones BG, Penkert RR, Surman SL, Sealy RE, Pelletier S, Xu B, Neale G, Maul RW, Gearhart PJ, Hurwitz JL. Matters of life and death: How estrogen and estrogen receptor binding to the immunoglobulin heavy chain locus may influence outcomes of infection, allergy, and autoimmune disease. Cell Immunol 2019; 346:103996. [PMID: 31703914 DOI: 10.1016/j.cellimm.2019.103996] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/20/2019] [Accepted: 10/24/2019] [Indexed: 12/21/2022]
Abstract
Sex hormones are best known for their influences on reproduction, but they also have profound influences on the immune response. Examples of sex-specific differences include: (i) the relatively poor control of influenza virus infections in males compared to females, (ii) allergic asthma, an IgE-associated hypersensitivity reaction that is exacerbated in adolescent females compared to males, and (iii) systemic lupus erythematosus, a life-threatening autoimmune disease with a 9:1 female:male bias. Here we consider how estrogen and estrogen receptor α (ERα) may influence the immune response by modifying class switch recombination (CSR) and immunoglobulin expression patterns. We focus on ERα binding to enhancers (Eμ and the 3' regulatory region) and switch sites (Sµ and Sε) in the immunoglobulin heavy chain locus. Our preliminary data from ChIP-seq analyses of purified, activated B cells show estrogen-mediated changes in the positioning of ERα binding within and near Sµ and Sε. In the presence of estrogen, ERα is bound not only to estrogen response elements (ERE), but also to adenosine-cytidine (AC)-repeats and poly adenosine (poly A) sequences, in some cases within constant region gene introns. We propose that by binding these sites, estrogen and ERα directly participate in the DNA loop formation required for CSR. We further suggest that estrogen regulates immunoglobulin expression patterns and can thereby influence life-and-death outcomes of infection, hypersensitivity, and autoimmune disease.
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Affiliation(s)
- Bart G Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Rhiannon R Penkert
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Sherri L Surman
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Robert E Sealy
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Stephane Pelletier
- Department of Immunology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Beisi Xu
- Department of Computational Biology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Geoff Neale
- Hartwell Center for Bioinformatics & Biotechnology, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
| | - Robert W Maul
- National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Patricia J Gearhart
- National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - J L Hurwitz
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA; Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
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5
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Shen G, Wu J, Han C, Liu H, Xu Y, Zhang H, Lin Y, Xia Q. Oestrogen-related receptor reduces vitellogenin expression by crosstalk with the ecdysone receptor pathway in female silkworm, Bombyx mori. INSECT MOLECULAR BIOLOGY 2018; 27:454-463. [PMID: 29603466 DOI: 10.1111/imb.12385] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Oestrogen-related receptor (ERR) is involved in oestrogen receptor (ER) signalling pathways owing to its similarity to ER in terms of domain structure and co-activator and response elements. Although insects lack ER, they harbour an ERR gene that is thought to modulate metabolism and energy conversion via an unknown mechanism. The present study investigated the function of ERR in insects using female silkworm (Bombyx mori, Bm). We found that the expression of B. mori vitellogenin (BmVg) and B. mori ERR (BmERR) in the fat bodies of female silkworms at different stages of development exhibited alternating patterns, and RNA interference of BmERR in females induced BmVg transcription, resulting in an increase in egg weight relative to the control. Furthermore, BmERR was found to be involved in regulating the transcription of BmVg through an oestrogen-related receptor response element (ERRE) in the promoter of the BmVg gene, as demonstrated by electrophoretic mobility shift assay, cell transfection assay and chromatin immunoprecipitation. In summary, our results indicate that BmERR bound to the ERRE motif in the BmVg promoter reducing the expression of BmVg in the fat body of the female silkworm. To our surprise, the ERRE also showed the ability to bind the ecdysone receptor (BmEcR) and ultraspiracle complex. Thus, we surmise that ERR participates in steroid hormone signalling by engaging in crosstalk with the ER pathway in vertebrates and with the EcR pathway in insects.
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Affiliation(s)
- G Shen
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - J Wu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - C Han
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - H Liu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Y Xu
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - H Zhang
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
| | - Y Lin
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
| | - Q Xia
- State Key Laboratory of Silkworm Genome Biology, Southwest University, Chongqing, China
- Chongqing Engineering and Technology Research Center for Novel Silk Materials, Chongqing, China
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6
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Lillycrop K, Murray R, Cheong C, Teh AL, Clarke-Harris R, Barton S, Costello P, Garratt E, Cook E, Titcombe P, Shunmuganathan B, Liew SJ, Chua YC, Lin X, Wu Y, Burdge GC, Cooper C, Inskip HM, Karnani N, Hopkins JC, Childs CE, Chavez CP, Calder PC, Yap F, Lee YS, Chong YS, Melton PE, Beilin L, Huang RC, Gluckman PD, Harvey N, Hanson MA, Holbrook JD, Godfrey KM. ANRIL Promoter DNA Methylation: A Perinatal Marker for Later Adiposity. EBioMedicine 2017; 19:60-72. [PMID: 28473239 PMCID: PMC5440605 DOI: 10.1016/j.ebiom.2017.03.037] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 03/13/2017] [Accepted: 03/27/2017] [Indexed: 12/22/2022] Open
Abstract
Experimental studies show a substantial contribution of early life environment to obesity risk through epigenetic processes. We examined inter-individual DNA methylation differences in human birth tissues associated with child's adiposity. We identified a novel association between the level of CpG methylation at birth within the promoter of the long non-coding RNA ANRIL (encoded at CDKN2A) and childhood adiposity at age 6-years. An association between ANRIL methylation and adiposity was also observed in three additional populations; in birth tissues from ethnically diverse neonates, in peripheral blood from adolescents, and in adipose tissue from adults. Additionally, CpG methylation was associated with ANRIL expression in vivo, and CpG mutagenesis in vitro inhibited ANRIL promoter activity. Furthermore, CpG methylation enhanced binding to an Estrogen Response Element within the ANRIL promoter. Our findings demonstrate that perinatal methylation at loci relevant to gene function may be a robust marker of later adiposity, providing substantial support for epigenetic processes in mediating long-term consequences of early life environment on human health.
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Affiliation(s)
- Karen Lillycrop
- Centre for Biological Sciences, Faculty of Natural and Environmental Sciences, University of Southampton, Southampton, UK; NIHR Southampton Biomedical Research Centre, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Robert Murray
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK.
| | - Clara Cheong
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Ai Ling Teh
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Rebecca Clarke-Harris
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Sheila Barton
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Paula Costello
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Emma Garratt
- NIHR Southampton Biomedical Research Centre, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Eloise Cook
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Philip Titcombe
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Bhuvaneshwari Shunmuganathan
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Samantha J Liew
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Yong-Cai Chua
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Xinyi Lin
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Yonghui Wu
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Graham C Burdge
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Cyrus Cooper
- MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Hazel M Inskip
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Neerja Karnani
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - James C Hopkins
- Academic Unit of Cancer Sciences, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Caroline E Childs
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Carolina Paras Chavez
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Philip C Calder
- NIHR Southampton Biomedical Research Centre, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK; Department of Biological Sciences, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fabian Yap
- Department of Paediatrics, KK Women's and Children's Hospital, Singapore; Duke NUS Graduate School of Medicine, Singapore; Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore
| | - Yung Seng Lee
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore; Department of Paediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Yap Seng Chong
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore; Department of Obstetrics and Gynaecology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Philip E Melton
- Centre for Genetics of Health and Disease, University of Western, Australia; Faculty of Health Science, Curtin University, Australia
| | - Lawrie Beilin
- School of Medicine and Pharmacology, University of Western Australia, Australia
| | - Rae-Chi Huang
- Telethon Kids Institute, University of Western Australia, Perth, Australia
| | - Peter D Gluckman
- Liggins Institute, University of Auckland, Auckland, New Zealand
| | - Nick Harvey
- Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
| | - Mark A Hanson
- NIHR Southampton Biomedical Research Centre, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK
| | - Joanna D Holbrook
- Singapore Institute for Clinical Sciences (SICS), Agency for Science Technology and Research (A*STAR), Singapore
| | - Keith M Godfrey
- NIHR Southampton Biomedical Research Centre, University of Southampton, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Academic Unit of Human Development and Health, Faculty of Medicine, University of Southampton, Southampton, UK; MRC Lifecourse Epidemiology Unit, University of Southampton, Southampton, UK
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7
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Lin C, Yang D. DNA Recognition by a Novel Bis-Intercalator, Potent Anticancer Drug XR5944. Curr Top Med Chem 2016; 15:1385-97. [PMID: 25866279 DOI: 10.2174/1568026615666150413155608] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 12/19/2014] [Accepted: 12/19/2014] [Indexed: 12/21/2022]
Abstract
XR5944 is a potent anticancer drug with a novel DNA binding mode: DNA bisintercalationg with major groove binding. XR5944 can bind the estrogen response element (ERE) sequence to block ER-ERE binding and inhibit ERα activities, which may be useful for overcoming drug resistance to currently available antiestrogen treatments. This review discusses the progress relating to the structure and function studies of specific DNA recognition of XR5944. The sites of intercalation within a native promoter sequence appear to be different from the ideal binding site and are context- and sequence- dependent. The structural information may provide insights for rational design of improved EREspecific XR5944 derivatives, as well as of DNA bis-intercalators in general.
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Affiliation(s)
| | - Danzhou Yang
- College of Pharmacy, University of Arizona, 1703 E. Mabel St, Tucson, AZ 85721, USA.
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8
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Garritano S, Romanel A, Ciribilli Y, Bisio A, Gavoci A, Inga A, Demichelis F. In-silico identification and functional validation of allele-dependent AR enhancers. Oncotarget 2015; 6:4816-28. [PMID: 25693204 PMCID: PMC4467117 DOI: 10.18632/oncotarget.3019] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2014] [Accepted: 12/30/2014] [Indexed: 12/13/2022] Open
Abstract
Androgen Receptor (AR) and Estrogen Receptors (ERs) are key nuclear receptors that can cooperate in orchestrating gene expression programs in multiple tissues and diseases, targeting binding elements in promoters and distant enhancers. We report the unbiased identification of enhancer elements bound by AR and ER-α whose activity can be allele-specific depending on the status of nearby Single Nucleotide Polymorphisms (SNP). ENCODE data were computationally mined to nominate genomic loci with: (i) chromatin signature of enhancer activity from activation histone marks, (ii) binding evidence by AR and ER-α, (iii) presence of a SNP. Forty-one loci were identified and two, on 1q21.3 and 13q34, selected for characterization by gene reporter, Chromatin immunoprecipitation (ChIP) and RT-qPCR assays in breast (MCF7) and prostate (PC-3) cancer-derived cell lines. We observed allele-specific enhancer activity, responsiveness to ligand-bound AR, and potentially influence on the transcription of closely located genes (RAB20, ING1, ARHGEF7, ADAM15). The 1q21.3 variant, rs2242193, showed impact on AR binding in MCF7 cells that are heterozygous for the SNP. Our unbiased genome-wide search proved to be an efficient methodology to discover new functional polymorphic regulatory regions (PRR) potentially acting as risk modifiers in hormone-driven cancers and overall nominated SNPs in PRR across 136 transcription factors.
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MESH Headings
- Alleles
- Blotting, Western
- Breast Neoplasms/genetics
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Chromatin Immunoprecipitation
- Computer Simulation
- Enhancer Elements, Genetic/genetics
- Estrogen Receptor alpha/genetics
- Estrogen Receptor alpha/metabolism
- Female
- Gene Expression Regulation, Neoplastic
- Genome, Human
- Humans
- Male
- Polymorphism, Single Nucleotide/genetics
- Promoter Regions, Genetic/genetics
- Prostatic Neoplasms/genetics
- Prostatic Neoplasms/metabolism
- Prostatic Neoplasms/pathology
- RNA, Messenger/genetics
- Real-Time Polymerase Chain Reaction
- Receptors, Androgen/genetics
- Receptors, Androgen/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- Tumor Cells, Cultured
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Affiliation(s)
- Sonia Garritano
- Laboratory of Computational Oncology, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Alessandro Romanel
- Laboratory of Computational Oncology, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Yari Ciribilli
- Laboratory of Transcriptional Networks, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Alessandra Bisio
- Laboratory of Transcriptional Networks, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Antoneta Gavoci
- Laboratory of Computational Oncology, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Alberto Inga
- Laboratory of Transcriptional Networks, CIBIO, Centre for Integrative Biology, University of Trento, Italy
| | - Francesca Demichelis
- Laboratory of Computational Oncology, CIBIO, Centre for Integrative Biology, University of Trento, Italy
- HRH Prince Alwaleed Bin Talal Bin Abdulaziz Alsaud Institute for Computational Biomedicine, Weill Medical College of Cornell University, New York, NY, USA
- Institute for Precision Medicine, Weill Medical College of Cornell University and New York Presbyterian Hospital, New York, NY, USA
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9
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Bisphenol-A induces expression of HOXC6, an estrogen-regulated homeobox-containing gene associated with breast cancer. BIOCHIMICA ET BIOPHYSICA ACTA-GENE REGULATORY MECHANISMS 2015; 1849:697-708. [PMID: 25725483 DOI: 10.1016/j.bbagrm.2015.02.003] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2014] [Revised: 02/13/2015] [Accepted: 02/17/2015] [Indexed: 12/31/2022]
Abstract
HOXC6 is a homeobox-containing gene associated with mammary gland development and is overexpressed in variety of cancers including breast and prostate cancers. Here, we have examined the expression of HOXC6 in breast cancer tissue, investigated its transcriptional regulation via estradiol (E2) and bisphenol-A (BPA, an estrogenic endocrine disruptor) in vitro and in vivo. We observed that HOXC6 is differentially over-expressed in breast cancer tissue. E2 induces HOXC6 expression in cultured breast cancer cells and in mammary glands of Sprague Dawley rats. HOXC6 expression is also induced upon exposure to BPA both in vitro and in vivo. Estrogen-receptor-alpha (ERα) and ER-coregulators such as MLL-histone methylases are bound to the HOXC6 promoter upon exposure to E2 or BPA and that resulted in increased histone H3K4-trimethylation, histone acetylation, and recruitment of RNA polymerase II at the HOXC6 promoter. HOXC6 overexpression induces expression of tumor growth factors and facilitates growth 3D-colony formation, indicating its potential roles in tumor growth. Our studies demonstrate that HOXC6, which is a critical player in mammary gland development, is upregulated in multiple cases of breast cancer, and is transcriptionally regulated by E2 and BPA, in vitro and in vivo.
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10
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Lin C, Mathad RI, Zhang Z, Sidell N, Yang D. Solution structure of a 2:1 complex of anticancer drug XR5944 with TFF1 estrogen response element: insights into DNA recognition by a bis-intercalator. Nucleic Acids Res 2014; 42:6012-24. [PMID: 24711371 PMCID: PMC4027214 DOI: 10.1093/nar/gku219] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
XR5944, a deoxyribonucleic acid (DNA) bis-intercalator with potent anticancer activity, can bind the estrogen response element (ERE) sequence to inhibit estrogen receptor-α activities. This novel mechanism of action may be useful for overcoming drug resistance to currently available antiestrogen treatments, all of which target the hormone-receptor complex. Here we report the nuclear magnetic resonance solution structure of the 2:1 complex of XR5944 with the naturally occurring TFF1-ERE, which exhibits important and unexpected features. In both drug–DNA complexes, XR5944 binds strongly at one intercalation site but weakly at the second site. The sites of intercalation within a native promoter sequence appear to be context and sequence dependent. The binding of one drug molecule influences the binding site of the second. Our structures underscore the fact that the DNA binding of a bis-intercalator is directional and different from the simple addition of two single intercalation sites. Our study suggests that improved XR5944 bis-intercalators targeting ERE may be designed through optimization of aminoalkyl linker and intercalation moieties at the weak binding sites.
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Affiliation(s)
- Clement Lin
- College of Pharmacy, University of Arizona, 1703 E. Mabel Street, Tucson, AZ 85721, USA
| | - Raveendra I Mathad
- College of Pharmacy, University of Arizona, 1703 E. Mabel Street, Tucson, AZ 85721, USA
| | - Zhenjiang Zhang
- College of Pharmacy, University of Arizona, 1703 E. Mabel Street, Tucson, AZ 85721, USA
| | - Neil Sidell
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Danzhou Yang
- College of Pharmacy, University of Arizona, 1703 E. Mabel Street, Tucson, AZ 85721, USA Department of Chemistry, University of Arizona, Tucson, AZ 85721, USA BIO5 Institute, University of Arizona, Tucson, AZ 85721, USA The Arizona Cancer Center, Tucson, AZ 85724, USA
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11
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Liu LYD, Chang LY, Kuo WH, Hwa HL, Lin YS, Jeng MH, Roth DA, Chang KJ, Hsieh FJ. Prognostic features of signal transducer and activator of transcription 3 in an ER(+) breast cancer model system. Cancer Inform 2014; 13:21-45. [PMID: 24526833 PMCID: PMC3921136 DOI: 10.4137/cin.s12493] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
The aberrantly expressed signal transducer and activator of transcription 3 (STAT3) predicts poor prognosis, primarily in estrogen receptor positive (ER(+)) breast cancers. Activated STAT3 is overexpressed in luminal A subtype cells. The mechanisms contributing to the prognosis and/or subtype relevant features of STAT3 in ER(+) breast cancers are through multiple interacting regulatory pathways, including STAT3-MYC, STAT3-ERα, and STAT3-MYC-ERα interactions, as well as the direct action of activated STAT3. These data predict malignant events, treatment responses and a novel enhancer of tamoxifen resistance. The inferred crosstalk between ERα and STAT3 in regulating their shared target gene-METAP2 is partially validated in the luminal B breast cancer cell line-MCF7. Taken together, we identify a poor prognosis relevant gene set within the STAT3 network and a robust one in a subset of patients. VEGFA, ABL1, LYN, IGF2R and STAT3 are suggested therapeutic targets for further study based upon the degree of differential expression in our model.
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Affiliation(s)
- Li-Yu D Liu
- Department of Agronomy, Biometry Division, National Taiwan University, Taipei, Taiwan
| | - Li-Yun Chang
- Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan
| | - Wen-Hung Kuo
- Department of Surgery, National Taiwan University, Taipei, Taiwan
| | - Hsiao-Lin Hwa
- Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan
| | | | - Meei-Huey Jeng
- Department of Urology, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Don A Roth
- Department of Molecular Biology, University of Wyoming, Laramie, WY 82071, USA
| | - King-Jen Chang
- Department of Surgery, National Taiwan University, Taipei, Taiwan. ; Cheng Ching General Hospital, Taichung, Taiwan
| | - Fon-Jou Hsieh
- Department of Obstetrics and Gynecology, National Taiwan University, Taipei, Taiwan. ; Research Center for Developmental Biology and Regenerative Medicine, National Taiwan University, Taipei, Taiwan
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12
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Sidell N, Mathad RI, Shu FJ, Zhang Z, Kallen CB, Yang D. Intercalation of XR5944 with the estrogen response element is modulated by the tri-nucleotide spacer sequence between half-sites. J Steroid Biochem Mol Biol 2011; 124:121-7. [PMID: 21333738 PMCID: PMC3072055 DOI: 10.1016/j.jsbmb.2011.02.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2010] [Revised: 02/04/2011] [Accepted: 02/05/2011] [Indexed: 12/21/2022]
Abstract
DNA-intercalating molecules can impair DNA replication, DNA repair, and gene transcription. We previously demonstrated that XR5944, a DNA bis-intercalator, specifically blocks binding of estrogen receptor-α (ERα) to the consensus estrogen response element (ERE). The consensus ERE sequence is AGGTCAnnnTGACCT, where nnn is known as the tri-nucleotide spacer. Recent work has shown that the tri-nucleotide spacer can modulate ERα-ERE binding affinity and ligand-mediated transcriptional responses. To further understand the mechanism by which XR5944 inhibits ERα-ERE binding, we tested its ability to interact with consensus EREs with variable tri-nucleotide spacer sequences and with natural but non-consensus ERE sequences using one dimensional nuclear magnetic resonance (1D (1)H NMR) titration studies. We found that the tri-nucleotide spacer sequence significantly modulates the binding of XR5944 to EREs. Of the sequences that were tested, EREs with CGG and AGG spacers showed the best binding specificity with XR5944, while those spaced with TTT demonstrated the least specific binding. The binding stoichiometry of XR5944 with EREs was 2:1, which can explain why the spacer influences the drug-DNA interaction; each XR5944 spans four nucleotides (including portions of the spacer) when intercalating with DNA. To validate our NMR results, we conducted functional studies using reporter constructs containing consensus EREs with tri-nucleotide spacers CGG, CTG, and TTT. Results of reporter assays in MCF-7 cells indicated that XR5944 was significantly more potent in inhibiting the activity of CGG- than TTT-spaced EREs, consistent with our NMR results. Taken together, these findings predict that the anti-estrogenic effects of XR5944 will depend not only on ERE half-site composition but also on the tri-nucleotide spacer sequence of EREs located in the promoters of estrogen-responsive genes.
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Affiliation(s)
- Neil Sidell
- Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA
| | | | - Feng-jue Shu
- Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA
| | | | - Caleb B. Kallen
- Department of Gynecology & Obstetrics, Emory University School of Medicine, Atlanta, GA
| | - Danzhou Yang
- College of Pharmacy, The University of Arizona, Tucson, AZ
- Arizona Cancer Center, The University of Arizona, Tucson, AZ
- BIO5 Institute, The University of Arizona, Tucson, AZ
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13
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Oviedo PJ, Sobrino A, Laguna-Fernandez A, Novella S, Tarín JJ, García-Pérez MA, Sanchís J, Cano A, Hermenegildo C. Estradiol induces endothelial cell migration and proliferation through estrogen receptor-enhanced RhoA/ROCK pathway. Mol Cell Endocrinol 2011; 335:96-103. [PMID: 20615453 DOI: 10.1016/j.mce.2010.06.020] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2010] [Revised: 06/30/2010] [Accepted: 06/30/2010] [Indexed: 01/29/2023]
Abstract
Migration and proliferation of endothelial cells are involved in re-endothelialization and angiogenesis, two important cardiovascular processes that are increased in response to estrogens. RhoA, a small GTPase which controls multiple cellular processes, is involved in the control of cell migration and proliferation. Our aim was to study the role of RhoA on estradiol-induced migration and proliferation and its dependence on estrogen receptors activity. Human umbilical vein endothelial cells were stimulated with estradiol, in the presence or absence of ICI 182780 (estrogen receptors antagonist) and Y-27632 (Rho kinase inhibitor). Estradiol increased Rho GEF-1 gene expression and RhoA (gene and protein expression and activity) in an estrogen receptor-dependent manner. Cell migration, stress fiber formation and cell proliferation were increased in response to estradiol and were also dependent on the estrogen receptors and RhoA activation. Estradiol decreased p27 levels, and significantly raised the expression of cyclins and CDK. These effects were counteracted by the use of either ICI 182780 or Y-27632. In conclusion, estradiol enhances the RhoA/ROCK pathway and increases cell cycle-related protein expression by acting through estrogen receptors. This results in an enhanced migration and proliferation of endothelial cells.
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Affiliation(s)
- Pilar J Oviedo
- Research Foundation, Hospital Clínico Universitario, Valencia, Spain
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Aagaard MM, Siersbæk R, Mandrup S. Molecular basis for gene-specific transactivation by nuclear receptors. Biochim Biophys Acta Mol Basis Dis 2010; 1812:824-35. [PMID: 21193032 DOI: 10.1016/j.bbadis.2010.12.018] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2010] [Revised: 12/14/2010] [Accepted: 12/17/2010] [Indexed: 01/31/2023]
Abstract
Nuclear receptors (NRs) are key transcriptional regulators of metazoan physiology and metabolism. Different NRs bind to similar or even identical core response elements; however, they regulate transcription in a highly receptor- and gene-specific manner. These differences in gene activation can most likely be accounted for by mechanisms involving receptor-specific interactions with DNA as well as receptor-specific interactions with protein complexes binding to adjacent and distant DNA sequences. Here, we review key molecular aspects of transactivation by NRs with special emphasis on the recent advances in the molecular mechanisms responsible for receptor- and gene-specific transcriptional activation. This article is part of a Special Issue entitled: Translating nuclear receptors from health to disease.
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Affiliation(s)
- Mads M Aagaard
- Department of Biochemistry and Molecular Biology, University of Southern Denmark, 5230 Odense M, Denmark
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