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  1. Article ; Online: Integrated Analysis of DNA Methylation, Hydroxymethylation, and Gene Expression Data Using ME-Class2.

    Singh, Manoj K / Edwards, John R

    Methods in molecular biology (Clifton, N.J.)

    2020  Volume 2198, Page(s) 467–489

    Abstract: There is increasing interest in understanding the pathological role of DNA methylation changes in disease by profiling genome-wide methylation changes. This includes both 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC). The typical profiling ... ...

    Abstract There is increasing interest in understanding the pathological role of DNA methylation changes in disease by profiling genome-wide methylation changes. This includes both 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC). The typical profiling study is designed to measure 5mC and/or 5hmC levels alongside gene expression in a set of samples and controls to determine a list of candidate genes whose 5mC and/or 5hmC changes are associated with expression changes. We recently showed that ME-Class2 substantially outperforms other bioinformatic approaches at accurately identify genes with highly associated methylation and expression changes. ME-Class2 further illuminated how synergistic changes in 5mC and 5hmC potentially contribute to gene silencing and activation. Here we present a detailed protocol for using ME-Class2 to analyze genome-wide methylation (5mC and/or 5hmC) and expression data. Further, we provide advice about extending ME-Class2 to study the relationships between other epigenetic marks.
    MeSH term(s) 5-Methylcytosine/analogs & derivatives ; 5-Methylcytosine/chemistry ; Animals ; Cytosine/metabolism ; DNA/chemistry ; DNA/genetics ; DNA Methylation/genetics ; Epigenesis, Genetic ; Epigenomics/methods ; Gene Expression/genetics ; Gene Silencing ; Genome ; Genomics ; Humans ; Machine Learning ; Sequence Analysis, DNA/methods
    Chemical Substances 5-hydroxymethylcytosine (1123-95-1) ; 5-Methylcytosine (6R795CQT4H) ; Cytosine (8J337D1HZY) ; DNA (9007-49-2)
    Language English
    Publishing date 2020-09-03
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ISSN 1940-6029
    ISSN (online) 1940-6029
    DOI 10.1007/978-1-0716-0876-0_34
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Towards constructing the governable worker in nineteenth-century Britain

    Edwards, John R

    Critical perspectives on accounting : an international journal for social and organizational accountability Vol. 50 , p. 36-55

    2018  Volume 50, Page(s) 36–55

    Author's details John Richard Edwards
    Keywords Accounting ; Foucault ; Governable worker ; Piece rates
    Language English
    Publisher Elsevier
    Publishing place Amsterdam
    Document type Article
    ZDB-ID 1022791x
    ISSN 1045-2354
    Database ECONomics Information System

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  3. Article ; Online: Methylation-directed glycosylation of chromatin factors represses retrotransposon promoters.

    Boulard, Mathieu / Rucli, Sofia / Edwards, John R / Bestor, Timothy H

    Proceedings of the National Academy of Sciences of the United States of America

    2020  Volume 117, Issue 25, Page(s) 14292–14298

    Abstract: The mechanisms by which methylated mammalian promoters are transcriptionally silenced even in the presence of all of the factors required for their expression have long been a major unresolved issue in the field of epigenetics. Repression requires the ... ...

    Abstract The mechanisms by which methylated mammalian promoters are transcriptionally silenced even in the presence of all of the factors required for their expression have long been a major unresolved issue in the field of epigenetics. Repression requires the assembly of a methylation-dependent silencing complex that contains the TRIM28 protein (also known as KAP1 and TIF1β), a scaffolding protein without intrinsic repressive or DNA-binding properties. The identity of the key effector within this complex that represses transcription is unknown. We developed a methylation-sensitized interaction screen which revealed that TRIM28 was complexed with
    MeSH term(s) Acetylglucosamine/metabolism ; Animals ; Chromatin/metabolism ; DNA (Cytosine-5-)-Methyltransferase 1/genetics ; DNA (Cytosine-5-)-Methyltransferase 1/metabolism ; DNA Methylation ; Epigenesis, Genetic ; Gene Silencing ; Glycosylation ; Humans ; Methylation ; N-Acetylglucosaminyltransferases ; Nuclear Proteins/metabolism ; Promoter Regions, Genetic ; Protein Processing, Post-Translational ; Proteomics ; Repressor Proteins/metabolism ; Retroelements/physiology ; Transcription Factors/metabolism ; Tripartite Motif-Containing Protein 28/metabolism
    Chemical Substances Chromatin ; Nuclear Proteins ; Repressor Proteins ; Retroelements ; Transcription Factors ; DNA (Cytosine-5-)-Methyltransferase 1 (EC 2.1.1.37) ; DNMT1 protein, human (EC 2.1.1.37) ; Tripartite Motif-Containing Protein 28 (EC 2.3.2.27) ; N-Acetylglucosaminyltransferases (EC 2.4.1.-) ; UDP-N-acetylglucosamine-peptide beta-N-acetylglucosaminyltransferase (EC 2.4.1.-) ; Acetylglucosamine (V956696549)
    Language English
    Publishing date 2020-06-10
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 209104-5
    ISSN 1091-6490 ; 0027-8424
    ISSN (online) 1091-6490
    ISSN 0027-8424
    DOI 10.1073/pnas.1912074117
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Accounting careers traversing the separate spheres of business and government in Victorian Britain

    Black, John / Edwards, John R

    Accounting history : journal of the Accounting History Special Interest Group of the Accounting Association of Australia and New Zealand Vol. 21, No. 2/3 , p. 306-328

    2016  Volume 21, Issue 2, Page(s) 306–328

    Author's details John Black, John Richard Edwards
    Keywords accounting change ; biography ; military accounting ; professionalization
    Language English
    Publisher SAGE Publ.
    Publishing place Los Angeles [u.a.]
    Document type Article
    ZDB-ID 1416503x ; 2211854-8
    ISSN 1032-3732
    ISSN 1032-3732
    Database ECONomics Information System

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  5. Article ; Online: ME-Class2 reveals context dependent regulatory roles for 5-hydroxymethylcytosine.

    Schlosberg, Christopher E / Wu, Dennis Y / Gabel, Harrison W / Edwards, John R

    Nucleic acids research

    2019  Volume 47, Issue 5, Page(s) e28

    Abstract: Since the discovery of 5-hydroxymethylcytosine (5hmC) as a prominent DNA modification found in mammalian genomes, an emergent question has been what role this mark plays in gene regulation. 5hmC is hypothesized to function as an intermediate in the ... ...

    Abstract Since the discovery of 5-hydroxymethylcytosine (5hmC) as a prominent DNA modification found in mammalian genomes, an emergent question has been what role this mark plays in gene regulation. 5hmC is hypothesized to function as an intermediate in the demethylation of 5-methylcytosine (5mC) and in the reactivation of silenced promoters and enhancers. Further, weak positive correlations are observed between gene body 5hmC and gene expression. We previously demonstrated that ME-Class is an effective tool to understand relationships between whole-genome bisulfite sequencing data and expression. In this work, we present ME-Class2, a machine-learning based tool to perform integrative 5mCG, 5hmCG and expression analysis. Using ME-Class2 we analyze whole-genome single-base resolution 5mCG and 5hmCG datasets from 20 primary tissue and cell samples to reveal relationships between 5hmCG and expression. Our analysis indicates that conversion of 5mCG to 5hmCG within 2 kb of the transcription start site associates with distinct functions depending on the summed level of 5mCG + 5hmCG. Unchanged levels of 5mCG + 5hmCG (conversion from 5mCG to stable 5hmCG) associate with repression. Meanwhile, decreases in 5mCG + 5hmCG (5hmCG-mediated demethylation) associate with gene activation. Our results demonstrate that ME-Class2 will prove invaluable to interpret genome-wide 5mC and 5hmC datasets and guide mechanistic studies into the function of 5hmCG.
    MeSH term(s) 5-Methylcytosine/analogs & derivatives ; 5-Methylcytosine/metabolism ; Animals ; Brain/metabolism ; Databases, Genetic ; Datasets as Topic ; Genes/genetics ; Genome/genetics ; Humans ; Machine Learning ; Methylation ; Mice ; Organ Specificity/genetics ; Promoter Regions, Genetic/genetics ; Sequence Analysis, RNA/methods ; Sulfites/chemistry ; Sulfites/metabolism
    Chemical Substances Sulfites ; 5-hydroxymethylcytosine (1123-95-1) ; 5-Methylcytosine (6R795CQT4H) ; hydrogen sulfite (OJ9787WBLU)
    Language English
    Publishing date 2019-02-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkz001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Breast Cancer Mutations HER2V777L and PIK3CAH1047R Activate the p21-CDK4/6-Cyclin D1 Axis to Drive Tumorigenesis and Drug Resistance.

    Cheng, Xiaoqing / Sun, Yirui / Highkin, Maureen / Vemalapally, Nagalaxmi / Jin, Xiaohua / Zhou, Brandon / Prior, Julie L / Tipton, Ashley R / Li, Shunqiang / Iliuk, Anton / Achilefu, Samuel / Hagemann, Ian S / Edwards, John R / Bose, Ron

    Cancer research

    2023  Volume 83, Issue 17, Page(s) 2839–2857

    Abstract: In metastatic breast cancer, HER2-activating mutations frequently co-occur with mutations in PIK3CA, TP53, or CDH1. Of these co-occurring mutations, HER2 and PIK3CA are the most commonly comutated gene pair, with approximately 40% of HER2-mutated breast ... ...

    Abstract In metastatic breast cancer, HER2-activating mutations frequently co-occur with mutations in PIK3CA, TP53, or CDH1. Of these co-occurring mutations, HER2 and PIK3CA are the most commonly comutated gene pair, with approximately 40% of HER2-mutated breast cancers also having activating mutations in PIK3CA. To study the effects of co-occurring HER2 and PIK3CA mutations, we generated genetically engineered mice with the HER2V777L; PIK3CAH1047R transgenes (HP mice) and studied the resulting breast cancers both in vivo as well as ex vivo using cancer organoids. HP breast cancers showed accelerated tumor formation in vivo and increased invasion and migration in in vitro assays. HP breast cancer cells were resistant to the pan-HER tyrosine kinase inhibitor, neratinib, but were effectively treated with neratinib plus the HER2-targeted antibody-drug conjugate trastuzumab deruxtecan. Proteomic and RNA-seq analysis of HP breast cancers identified increased gene expression of cyclin D1 and p21WAF1/Cip1 and changes in cell-cycle markers. Combining neratinib with CDK4/6 inhibitors was another effective strategy for treating HP breast cancers, with neratinib plus palbociclib showing a statistically significant reduction in development of mouse HP tumors as compared to either drug alone. The efficacy of both the neratinib plus trastuzumab deruxtecan and neratinib plus palbociclib combinations was validated using a human breast cancer patient-derived xenograft with very similar HER2 and PIK3CA mutations to the HP mice. Further, these two drug combinations effectively treated spontaneous lung metastasis in syngeneic mice transplanted with HP breast cancer organoids. This study provides valuable preclinical data to support the ongoing phase 1 clinical trials of these drug combinations in breast cancer.
    Significance: In HER2-mutated breast cancer, PIK3CA mutation activates p21-CDK4/6-cyclin D1 signaling to drive resistance to HER2-targeted therapies, which can be overcome using CDK4/6 inhibitors.
    MeSH term(s) Animals ; Female ; Humans ; Mice ; Breast Neoplasms/drug therapy ; Breast Neoplasms/genetics ; Breast Neoplasms/pathology ; Cell Transformation, Neoplastic ; Class I Phosphatidylinositol 3-Kinases/genetics ; Cyclin D1/genetics ; Cyclin-Dependent Kinase 4/genetics ; Drug Resistance, Neoplasm/genetics ; Mutation ; Proteomics ; Receptor, ErbB-2/metabolism
    Chemical Substances CDK4 protein, human (EC 2.7.11.22) ; Class I Phosphatidylinositol 3-Kinases (EC 2.7.1.137) ; Cyclin D1 (136601-57-5) ; Cyclin-Dependent Kinase 4 (EC 2.7.11.22) ; Receptor, ErbB-2 (EC 2.7.10.1) ; PIK3CA protein, human (EC 2.7.1.137) ; ERBB2 protein, human (EC 2.7.10.1)
    Language English
    Publishing date 2023-06-02
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S. ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 1432-1
    ISSN 1538-7445 ; 0008-5472
    ISSN (online) 1538-7445
    ISSN 0008-5472
    DOI 10.1158/0008-5472.CAN-22-3558
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: A human mitofusin 2 mutation can cause mitophagic cardiomyopathy.

    Franco, Antonietta / Li, Jiajia / Kelly, Daniel P / Hershberger, Ray E / Marian, Ali J / Lewis, Renate M / Song, Moshi / Dang, Xiawei / Schmidt, Alina D / Mathyer, Mary E / Edwards, John R / Strong, Cristina de Guzman / Dorn, Gerald W

    eLife

    2023  Volume 12

    Abstract: Cardiac muscle has the highest mitochondrial density of any human tissue, but mitochondrial dysfunction is not a recognized cause of isolated cardiomyopathy. Here, we determined that the rare mitofusin (MFN) 2 R400Q mutation is 15-20× over-represented in ...

    Abstract Cardiac muscle has the highest mitochondrial density of any human tissue, but mitochondrial dysfunction is not a recognized cause of isolated cardiomyopathy. Here, we determined that the rare mitofusin (MFN) 2 R400Q mutation is 15-20× over-represented in clinical cardiomyopathy, whereas this specific mutation is not reported as a cause of MFN2 mutant-induced peripheral neuropathy, Charcot-Marie-Tooth disease type 2A (CMT2A). Accordingly, we interrogated the enzymatic, biophysical, and functional characteristics of MFN2 Q400 versus wild-type and CMT2A-causing MFN2 mutants. All MFN2 mutants had impaired mitochondrial fusion, the canonical MFN2 function. Compared to MFN2 T105M that lacked catalytic GTPase activity and exhibited normal activation-induced changes in conformation, MFN2 R400Q and M376A had normal GTPase activity with impaired conformational shifting. MFN2 R400Q did not suppress mitochondrial motility, provoke mitochondrial depolarization, or dominantly suppress mitochondrial respiration like MFN2 T105M. By contrast to MFN2 T105M and M376A, MFN2 R400Q was uniquely defective in recruiting Parkin to mitochondria. CRISPR editing of the R400Q mutation into the mouse
    MeSH term(s) Pregnancy ; Female ; Humans ; Mice ; Animals ; Membrane Proteins/genetics ; Mitochondrial Proteins/genetics ; Mutation ; GTP Phosphohydrolases/genetics ; Cardiomyopathies/genetics ; Charcot-Marie-Tooth Disease/genetics
    Chemical Substances Membrane Proteins ; Mitochondrial Proteins ; GTP Phosphohydrolases (EC 3.6.1.-)
    Language English
    Publishing date 2023-11-01
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 2687154-3
    ISSN 2050-084X ; 2050-084X
    ISSN (online) 2050-084X
    ISSN 2050-084X
    DOI 10.7554/eLife.84235
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Book ; Online: Minority languages and group identity

    Edwards, John R

    cases and categories

    (Impact ; 27)

    2010  

    Abstract: The central concern in this book is the relationship between language and group identity, a relationship that is thrown into greatest relief in 'minority' settings. Since much of the current interest in minority languages revolves around issues of ... ...

    Author's details John Edwards
    Series title Impact ; 27
    Abstract The central concern in this book is the relationship between language and group identity, a relationship that is thrown into greatest relief in 'minority' settings. Since much of the current interest in minority languages revolves around issues of identity politics, language rights and the plight of 'endangered' languages, one aim of the book is to summarise and analyse these and other pivotal themes. Furthermore, since the uniqueness of every language-contact situation does not rest upon unique elements or features - but, rather, upon the particular weightings and combinations of features tha
    Keywords Language attrition ; Linguistic minorities
    Language English
    Size Online-Ressource (ix, 231 p)
    Publisher Benjamins
    Publishing place Amsterdam u.a.
    Document type Book ; Online
    Note Includes bibliographical references and index
    ISBN 1282484907 ; 1282484974 ; 9781282484979 ; 9789027218667 ; 9789027288684 ; 9781282484900 ; 9027218668 ; 9027288682
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  9. Article ; Online: Determining subpopulation methylation profiles from bisulfite sequencing data of heterogeneous samples using DXM.

    Fong, Jerry / Gardner, Jacob R / Andrews, Jared M / Cashen, Amanda F / Payton, Jacqueline E / Weinberger, Kilian Q / Edwards, John R

    Nucleic acids research

    2021  Volume 49, Issue 16, Page(s) e93

    Abstract: Epigenetic changes, such as aberrant DNA methylation, contribute to cancer clonal expansion and disease progression. However, identifying subpopulation-level changes in a heterogeneous sample remains challenging. Thus, we have developed a computational ... ...

    Abstract Epigenetic changes, such as aberrant DNA methylation, contribute to cancer clonal expansion and disease progression. However, identifying subpopulation-level changes in a heterogeneous sample remains challenging. Thus, we have developed a computational approach, DXM, to deconvolve the methylation profiles of major allelic subpopulations from the bisulfite sequencing data of a heterogeneous sample. DXM does not require prior knowledge of the number of subpopulations or types of cells to expect. We benchmark DXM's performance and demonstrate improvement over existing methods. We further experimentally validate DXM predicted allelic subpopulation-methylation profiles in four Diffuse Large B-Cell Lymphomas (DLBCLs). Lastly, as proof-of-concept, we apply DXM to a cohort of 31 DLBCLs and relate allelic subpopulation methylation profiles to relapse. We thus demonstrate that DXM can robustly find allelic subpopulation methylation profiles that may contribute to disease progression using bisulfite sequencing data of any heterogeneous sample.
    MeSH term(s) Algorithms ; Cell Line, Tumor ; DNA Methylation ; Epigenomics/methods ; Epigenomics/standards ; Genetic Heterogeneity ; Humans ; Lymphoma, Large B-Cell, Diffuse/genetics ; Sequence Analysis, DNA/methods ; Sequence Analysis, DNA/standards
    Language English
    Publishing date 2021-06-21
    Publishing country England
    Document type Journal Article ; Research Support, N.I.H., Extramural
    ZDB-ID 186809-3
    ISSN 1362-4962 ; 1362-4954 ; 0301-5610 ; 0305-1048
    ISSN (online) 1362-4962 ; 1362-4954
    ISSN 0301-5610 ; 0305-1048
    DOI 10.1093/nar/gkab516
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Abnormal X chromosome inactivation and sex-specific gene dysregulation after ablation of FBXL10.

    Boulard, Mathieu / Edwards, John R / Bestor, Timothy H

    Epigenetics & chromatin

    2016  Volume 9, Page(s) 22

    Abstract: Background: Almost all CpG-rich promoters in the mammalian genome are bound by the multidomain FBXL10 protein (also known as KDM2B, JHDM1B, CXXC2, and NDY1). FBXL10 is expressed as two isoforms: FBXL10-1, a longer form that contains an N-terminal ... ...

    Abstract Background: Almost all CpG-rich promoters in the mammalian genome are bound by the multidomain FBXL10 protein (also known as KDM2B, JHDM1B, CXXC2, and NDY1). FBXL10 is expressed as two isoforms: FBXL10-1, a longer form that contains an N-terminal histone demethylase domain with C-terminal F-box, CXXC, PHD, RING, and leucine-rich repeat domains, and FBXL10-2, a shorter form that initiates at an alternative internal exon and which lacks the histone demethylase domain but retains all other annotated domains. Selective deletion of Fbxl10-1 had been reported to produce a low penetrance and variable phenotype; most of the mutant animals were essentially normal. We constructed mutant mouse strains that were either null for Fbxl10-2 but wild type for Fbxl10-1 or null for both Fbxl10-1 and Fbxl10-2.
    Results: Deletion of Fbxl10-2 (in a manner that does not perturb expression of Fbxl10-1) produced a phenotype very different from the Fbxl10-1 mutant, with craniofacial abnormalities, neural tube defects, and increased lethality, especially in females. Mutants that lacked both FBXL10-1 and FBXL10-2 showed embryonic lethality and even more extreme sexual dimorphism, with more severe gene dysregulation in mutant female embryos. X-linked genes were most severely dysregulated, and there was marked overexpression of Xist in mutant females although genes that encode factors that bind to Xist RNA were globally downregulated in mutant female as compared to male embryos.
    Conclusions: FBXL10 is the first factor shown to be required both for the normal expression and function of the Xist gene and for normal expression of proteins that associate with Xist RNA; it is proposed that FBXL10 coordinates the expression of Xist RNA with proteins that associate with this RNA. The function of FBXL10 is largely independent of the histone demethylase activity of the long form of the protein.
    Language English
    Publishing date 2016
    Publishing country England
    Document type Journal Article
    ZDB-ID 2462129-8
    ISSN 1756-8935
    ISSN 1756-8935
    DOI 10.1186/s13072-016-0069-1
    Database MEDical Literature Analysis and Retrieval System OnLINE

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