Research Topics
| M SzyfSummaryAffiliation: McGill University Country: Canada Publications
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Publications
Epigenetic mechanisms of perinatal programming of hypothalamic-pituitary-adrenal function and healthMichael J Meaney
McGill Program for Study of Genes, Environment and Health, McGill University, Montreal, Canada
Trends Mol Med 13:269-77. 2007....
The early-life social environment and DNA methylationM Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Clin Genet 81:341-9. 2012..Data that are consistent with this new role for DNA methylation as a mechanism for conferring an 'environment' specific identity to DNA will be discussed...
Peripheral nerve injury is accompanied by chronic transcriptome-wide changes in the mouse prefrontal cortexSebastian Alvarado
Department of Pharmacology and Therapeutics, McGill University, Faculty of Medicine, 3655 Promenade Sir William Osler, Montreal, Quebec H3G 1Y6, Canada
Mol Pain 9:21. 2013....
DNA demethylation and cancer metastasis: therapeutic implicationsMoshe Szyf
McGill University, Department of Pharmacology and Therapeutics, 3655 Sir William Osler Promenade, Montreal PQ, H3G 1Y6, Canada 1 514 398 7107 1 514 398 6690
Expert Opin Drug Discov 3:519-31. 2008..Conclusion: Both methylation and demethylation could be pharmacologically modulated. It is argued here that inhibition of hypomethylation might provide a new therapeutic approach to antimetastatic therapy...
DNA methylation: a mechanism for embedding early life experiences in the genomeMoshe Szyf
McGill University
Child Dev 84:49-57. 2013..Examining the environmental circumstances associated with the onset and reversal of DNA methylation will be critical for understanding risk and resiliency...
Mind-body interrelationship in DNA methylationMoshe Szyf
Department of Pharmacology and Therapeutics, Sackler Program in Epigenetics and Psychobiology, McGill University, Montreal, Que, Canada
Chem Immunol Allergy 98:85-99. 2012..New data suggesting associations between DNA methylation patterns in white blood cells and the social environment will be discussed...
DNA methylation of SPARC and chronic low back painMaral Tajerian
Alan Edwards Centre for Research on Pain, McGill University, 740 Dr, Penfield Avenue, Montreal, Quebec, H3A 1A4, Canada
Mol Pain 7:65. 2011..We tested the hypothesis that DNA methylation down-regulates SPARC expression in chronic LBP in pre-clinical models and in patients with chronic LBP...
DNA methylation and demethylation as targets for anticancer therapyM Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal PQ H3G 1Y6, Canada
Biochemistry (Mosc) 70:533-49. 2005..This review discusses the emerging role of demethylation in activation of pro-metastatic genes and the potential therapeutic implications of the demethylation machinery in metastasis...
Therapeutic implications of DNA methylationMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, PQ H3G 1Y6, Canada
Future Oncol 1:125-35. 2005..One of the main challenges however, is to understand the relative role of hypo- and hypermethylation in order to achieve a balance of epigenetic therapeutic agents with positive outcome and reduced adverse effects...
The early life social environment and DNA methylation: DNA methylation mediating the long-term impact of social environments early in lifeMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University Montreal CA, USA
Epigenetics 6:971-8. 2011..However, several critical questions remain including the identification of mechanisms that transmit the signals from the social environment to the DNA methylation/demethylation enzymes...
DNA methylation, the early-life social environment and behavioral disordersMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, H3G 1Y6, Canada
J Neurodev Disord 3:238-49. 2011..This hypothesis has important implications on understanding, predicting, preventing, and treating behavioral disorders including autism that will be discussed...
The implications of DNA methylation for toxicology: toward toxicomethylomics, the toxicology of DNA methylationMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, McGill University, Montreal, Quebec H3G 1Y6, Canada
Toxicol Sci 120:235-55. 2011..The realization that long-range damage could be caused without changing the DNA sequence has important implications on the way we assess the safety of chemicals, drugs, and food and broadens the scope of definition of toxic agents...
DNA methylation and demethylation probed by small moleculesMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec, Canada H3G 1Y6
Biochim Biophys Acta 1799:750-9. 2010..This review will discuss DNA methylation and demethylation machineries, and their therapeutic potentials as targets for small molecule inhibitors...
Epigenetic therapeutics in autoimmune diseaseMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, QC, H3G 1Y6, Canada
Clin Rev Allergy Immunol 39:62-77. 2010..MBD2 was recently proposed to be involved in demethylation in T cells in lupus and is, therefore, a candidate target. Although this field is at its infancy, it carries great promise...
The social environment and the epigenomeMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, and Department of Psychiatry, Douglas Hospital Research Center, Montreal, Quebec, Canada
Environ Mol Mutagen 49:46-60. 2008..We speculate that exposures to different environmental toxins alters long-established epigenetic programs in the brain as well as other tissues leading to late-onset disease...
DNA methylation and breast cancerMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osier Promenade, Montreal, Canada PQ H3G 1Y6
Biochem Pharmacol 68:1187-97. 2004..Future therapeutic application of either methylation or demethylation inhibitors in cancer therapy would require understanding of the relative role of these processes in the evolution of cancer...
Targeting DNA methylation in cancerMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal PQ H3G 1Y6 Canada
Bull Cancer 93:961-72. 2006..It is now becoming clear however that hypomethylation also plays a role in cancer by activating genes required for invasion and metastasis. The potential therapeutic implications of targeting DNA methylation in cancer are discussed...
The dynamic epigenome and its implications in toxicologyMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
Toxicol Sci 100:7-23. 2007....
Maternal care, the epigenome and phenotypic differences in behaviorMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
Reprod Toxicol 24:9-19. 2007..We speculate that exposures to different environmental toxins, which affect the epigenetic machinery might alter long-established epigenetic programs in the brain...
DNA demethylation and cancer: therapeutic implicationsMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Que, Canada PQ H3G 1Y6
Cancer Lett 211:133-43. 2004..Understanding the relative roles of hypomethylation and hypermethylation in cancer has clear implications on the therapeutic use of agents targeting the DNA methylation machinery, which are discussed in this review...
The early life environment and the epigenomeMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Biochim Biophys Acta 1790:878-85. 2009....
Epigenetics, behaviour, and healthMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montréimeal, QC
Allergy Asthma Clin Immunol 4:37-49. 2008..In contrast to genetic sequence differences, epigenetic aberrations are potentially reversible, raising the hope for interventions that will be able to reverse deleterious epigenetic programming...
DNA methyltransferase 1 knock down induces gene expression by a mechanism independent of DNA methylation and histone deacetylationSnezana Milutinovic
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 279:27915-27. 2004..The implications of our data on the biological roles of DNMT1 and the therapeutic potential of DNMT1 inhibitors as anticancer agents are discussed...
Epigenetic programming by maternal behaviorIan C G Weaver
Douglas Hospital Research Center, 6875 LaSalle Blvd, , , Canada
Nat Neurosci 7:847-54. 2004..Thus we show that an epigenomic state of a gene can be established through behavioral programming, and it is potentially reversible...
Ras induces a general DNA demethylation activity in mouse embryonal P19 cellsM Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
J Biol Chem 270:12690-6. 1995..This demonstrates that the general DNA demethylation activity in mouse embryonal cells is controlled by an important cellular signal transducer and that DNA demethylase is a potential downstream effector of Ras...
Epigenetic tête-à -tête: the bilateral relationship between chromatin modifications and DNA methylationMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William Osler, Montreal, QC H3G 1Y6, Canada
Biochem Cell Biol 84:463-76. 2006..Cancer cells exhibit a paradoxical coexistence of global loss of DNA methylation with regional hypermethylation...
How does DNA methyltransferase cause oncogenic transformation?M Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, PQ, Canada
Ann N Y Acad Sci 910:156-74; discussion 175-7. 2000..Both DNMT1 and the demethylase play a causal role in cellular transformation and are candidate anticancer targets...
DNA methyltransferase is a downstream effector of cellular transformation triggered by simian virus 40 large T antigenA Slack
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 274:10105-12. 1999..These results suggest that elevation of DNA MeTase is an essential component of the oncogenic program induced by T antigen...
Reversal of maternal programming of stress responses in adult offspring through methyl supplementation: altering epigenetic marking later in lifeIan C G Weaver
Douglas Hospital Research Center, , , Canada
J Neurosci 25:11045-54. 2005..These results demonstrate that, despite the inherent stability of the epigenomic marks established early in life through behavioral programming, they are potentially reversible in the adult brain...
Demethylase activity is directed by histone acetylationN Cervoni
Department of Pharmacology and Therapeutics, McGill University, Montreal, PQ H3G 1Y6, Canada
J Biol Chem 276:40778-87. 2001..This provides a simple mechanism for explaining why active genes are not methylated...
Downregulation of DNA (cytosine-5-)methyltransferase is a late event in NGF-induced PC12 cell differentiationJ Deng
Department of Pharmacology and Therapeutics, McGill University, 3655 Drummond Street, Montreal, PQ, Canada
Brain Res Mol Brain Res 71:23-31. 1999..We propose that NGF differentiation of PC12 cells represents a different paradigm of involvement of DNA methylation in terminal differentiation...
High intracellular concentrations of amyloid-beta block nuclear translocation of phosphorylated CREBD N Arvanitis
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
J Neurochem 103:216-28. 2007....
Quantum dot-induced epigenetic and genotoxic changes in human breast cancer cellsAngela O Choi
Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William Osler, McIntyre Medical Sciences Building, Montreal H3G 1Y6, Canada
J Mol Med (Berl) 86:291-302. 2008..These studies suggest that aside from genotoxic effects, nanoparticles could cause more subtle epigenetic changes which merit thorough examination of environmental nanoparticles and novel candidate nanomaterials for medical applications...
Early environmental regulation of hippocampal glucocorticoid receptor gene expression: characterization of intracellular mediators and potential genomic target sitesIan C G Weaver
McGill Program for the Study of Behavior, Genes and Environment, Douglas Hospital Research Centre, Department of Psychiatry, McGill University, Montreal, Quebec, Canada
Ann N Y Acad Sci 1024:182-212. 2004..This paper summarizes the evidence in favor of these pathways as well as recent studies describing regulatory targets within the chromatin structure of the promoter region of the rat hippocampal glucocorticoid receptor gene...
Maternal programming of steroid receptor expression and phenotype through DNA methylation in the ratMoshe Szyf
McGill Program for the Study of Behavior, Genes and Environment, McGill University, Montreal, Canada
Front Neuroendocrinol 26:139-62. 2005..These findings demonstrate that an epigenomic state of a gene can be established through a behavioral mode of programming and that in spite of the inherent stability of this epigenomic mark, it is dynamic and potentially reversible...
From maternal care to gene expression: DNA methylation and the maternal programming of stress responsesIan C G Weaver
Douglas Hospital Research Centre, McGill University, Montreal, PQ, Canada
Endocr Res 28:699. 2002
A conserved 3'-untranslated element mediates growth regulation of DNA methyltransferase 1 and inhibits its transforming activityN Detich
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 276:24881-90. 2001..These results support the hypothesis that deregulated expression of DNMT1 with the cell cycle is important for cellular transformation...
Targeting DNA methyltransferase in cancerM Szyf
Department of Pharmacology, McGill University, Montreal, PQ, Canada
Cancer Metastasis Rev 17:219-31. 1998..This commentary discusses the possible mechanisms through which DNA methyltransferase participates in oncogenesis and the rationale for targeting it in cancer...
Regulation of the DNA methylation machinery and its role in cellular transformationM Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Prog Nucleic Acid Res Mol Biol 69:47-79. 2001..Unraveling how the different components of the DNA methylation machinery interact to replicate the DNA methylation pattern, and how they are disrupted in cancer, is critical for understanding the molecular mechanisms of cancer...
Transgenic mice as a model of pre-clinical Alzheimer's diseaseM T Ferretti
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Curr Alzheimer Res 8:4-23. 2011..Similar neuronal alterations might occur prior to clinical diagnosis in AD, during a yet undefined 'latent' stage. A better understanding of such pre-clinical AD might yield novel therapeutic targets and or diagnostic tools...
The DNA methylation machinery as a therapeutic targetM Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Drummond Street, Montreal, PQ, Canada H3G 1Y6
Curr Drug Targets 1:101-18. 2000....
The transcription factor nerve growth factor-inducible protein a mediates epigenetic programming: altering epigenetic marks by immediate-early genesIan C G Weaver
Douglas Hospital Research Center, Montreal, Quebec, Canada H4H 1R3
J Neurosci 27:1756-68. 2007..The data are consistent with the hypothesis that NGFI-A participates in epigenetic programming of GR expression...
Reversal of the hypomethylation status of urokinase (uPA) promoter blocks breast cancer growth and metastasisPouya Pakneshan
Department of Medicine, McGill University, Montreal H3A 1A1, Canada
J Biol Chem 279:31735-44. 2004..Inhibition of hypomethylation can thus be used as a novel therapeutic approach to silence the pro-metastatic gene uPA and block breast cancer progression into the aggressive and metastatic stages of the disease...
Histone deacetylase inhibitor Trichostatin A induces global and gene-specific DNA demethylation in human cancer cell linesJing Ni Ou
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Biochem Pharmacol 73:1297-307. 2007..Taken together, our data provide evidence for a reversible crosstalk between histone acetylation and DNA demethylation, which has significant implications on the use of HDAC inhibitors as therapeutic agents...
Maternal programming of defensive responses through sustained effects on gene expressionTie Yuan Zhang
McGill Program for the Study of Behavior, Genes and Environment, McGill University, Canada
Biol Psychol 73:72-89. 2006....
The DNMT1 target recognition domain resides in the N terminusF D Araujo
Departments of Pharmacology and Therapeutics, Biochemistry, and Experimental Medicine, McGill University, Montreal, PQ, H3G 1Y6, Canada
J Biol Chem 276:6930-6. 2001..Our results now indicate that the DNMT1-PCNA interaction can be disrupted by substrate binding to the DNMT1 N terminus. These results point toward new directions in our understanding of the structure-function of DNMT1...
Mechanisms of epigenetic silencing of the c21 gene in Y1 adrenocortical tumor cellsM Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Endocr Res 26:921-30. 2000..We present a model to explain the possible roles of the different components of the epigenome and the DNA methylation and demethylation machineries in silencing c21 gene expression...
Towards a pharmacology of DNA methylationM Szyf
Dept of Pharmacology and Therapeutics, McGill University, PQ, Montreal, Canada H3G 1Y6
Trends Pharmacol Sci 22:350-4. 2001..The regulatory activities of DNMT1 are proposed to be involved in cellular transformation and should, therefore, serve as the targets for novel anti-cancer agents...
Early environmental regulation of hippocampal glucocorticoid receptor gene expression: characterization of intracellular mediators and potential genomic target sitesI C Weaver
McGill Program for the Study of Behavior, Genes and Environment, Douglas Hospital Research Centre, Department of Psychiatry, McGill University, 6875 LaSalle Blvd, Montreal, Quebec, Canada H4H 1R3
Mol Cell Endocrinol 185:205-18. 2001..This paper summarizes the evidence in favor of these pathways as well as recent studies describing regulatory targets on the promoter region of the rat hippocampal glucocorticoid receptor gene...
The role of DNA methyltransferase 1 in growth controlM Szyf
Department of Pharmacology and Therapeutics McGill University Montreal, Canada H3G 1Y6
Front Biosci 6:D599-609. 2001..The unique position of DNMT1 in the cell cycle is consistent with the hypothesis that it plays an important role in cancer...
Alteration of the methylation status of tumor-promoting genes decreases prostate cancer cell invasiveness and tumorigenesis in vitro and in vivoNicholas Shukeir
Department of Medicine, McGill University, Montreal, Quebec, Canada
Cancer Res 66:9202-10. 2006....
Environmental programming of stress responses through DNA methylation: life at the interface between a dynamic environment and a fixed genomeMichael J Meaney
McGill Program for the Study of Behavior, Genes and Environment, Department of Pharmacology, McGill University, Douglas Hospital Research Centre, Montreal, Quebec, Canada
Dialogues Clin Neurosci 7:103-23. 2005....
Utilization of antisense oligonucleotides to study the role of 5-cytosine DNA methyltransferase in cellular transformation and oncogenesisMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, PQ H3G 1Y6, Canada
Methods 27:184-91. 2002..Antisense oligonucleotides are applied to determine whether DNMT1 plays a causal role in specific cancer models ex vivo as well as in vivo...
The methyl donor S-Adenosylmethionine inhibits active demethylation of DNA: a candidate novel mechanism for the pharmacological effects of S-AdenosylmethionineNancy Detich
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1YG, Canada
J Biol Chem 278:20812-20. 2003..Taken together, our data support an alternative mechanism of action for AdoMet as an inhibitor of intracellular demethylase activity, which results in hypermethylation of DNA...
Targeting DNA methylation in cancerMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Que, Canada H3G 1Y6
Ageing Res Rev 2:299-328. 2003..This review discusses the possible role of DNA methyltranferases and demethylases in tumorigenesis and the possible pharmacological and therapeutic implications of the DNA methylation machinery...
Epigenetics, DNA methylation, and chromatin modifying drugsMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
Annu Rev Pharmacol Toxicol 49:243-63. 2009..Understanding the epigenetic machinery and the differential roles of its components in specific disease states is essential for developing targeted epigenetic therapy...
DNA methylation and cancer therapyMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Promenade, Quebec H3G 1Y6, Montreal, Canada
Drug Resist Updat 6:341-53. 2003....
Diet and the epigenetic (re)programming of phenotypic differences in behaviorPatrick O McGowan
Department of Neurology and Neurosurgery, McGill University, Montreal, Quebec, Canada
Brain Res 1237:12-24. 2008..Nutritional restriction during gestation could affect epigenetic programming in the brain. These findings provide evidence for a stable yet dynamic epigenome capable of regulating phenotypic plasticity through epigenetic programming...
Maternal care as a model for experience-dependent chromatin plasticity?Michael J Meaney
Douglas Hospital Research Center, 6875 LaSalle Boulevard, Montreal, Quebec H4H 1R3, Canada
Trends Neurosci 28:456-63. 2005..This review discusses the nature of this environmental programming--the mechanism by which it occurs in rats, its long-term implications, and opportunities for its reversal in rodents and ultimately in humans...
A novel regulatory element in the dnmt1 gene that responds to co-activation by Rb and c-JunA Slack
Department of Pharmacology and Therapeutics, McGill University, 3655 Drummond Street, Montreal, Canada
Gene 268:87-96. 2001..The responsiveness of dnmt1 to this type of signal is consistent with an important role for regulated expression of dnmt1 during cellular differentiation...
Epigenetic programming of phenotypic variations in reproductive strategies in the rat through maternal careN M Cameron
Sackler Program for Epigenetics and Psychobiology at McGill University and Douglas University Mental Health Institute, McGill University, Montreal, Canada
J Neuroendocrinol 20:795-801. 2008..The tissue-specific nature of such effects may underlie the co-ordinated variation in multiple forms of reproductive function, resulting in distinct reproductive strategies...
Promoter-wide hypermethylation of the ribosomal RNA gene promoter in the suicide brainPatrick O McGowan
Department of Psychiatry, Douglas Mental Health University Institute, Montreal, Quebec, Canada
PLoS ONE 3:e2085. 2008..rRNA genes, that encode ribosomal RNA, are the backbone of the protein synthesis machinery and levels of rRNA gene promoter methylation determine rRNA transcription...
Acetylation-induced transcription is required for active DNA demethylation in methylation-silenced genesAna C D'Alessio
Department of Pharmacology and Therapeutics, McGill University, 3655 Promenade Sir William Osler, Montreal, Quebec H3G 1Y6, Canada
Mol Cell Biol 27:7462-74. 2007..These data suggest that DNA demethylation follows rather than precedes early transcription and point towards a novel function for DNA demethylation as a memory of actively transcribed genes...
Pharmacological inhibition of DNA methylation induces proinvasive and prometastatic genes in vitro and in vivoBushra Ateeq
Department of Medicine, McGill University, Montreal, Quebec, Canada
Neoplasia 10:266-78. 2008..These results draw attention to the critical role of demethylation as a potential mechanism that can promote the development and progression of tumor metastasis after demethylation therapy as an anticancer treatment...
Epigenetic programming of stress responses through variations in maternal careEric W Fish
McGill Program for the Study of Behavior, Genes and Environment, Douglas Hospital Research Centre, McGill University, Montreal, Canada
Ann N Y Acad Sci 1036:167-80. 2004..Given the importance of early life and parent-child interactions to later behavior, prevention and intervention programs should target this critical phase of development...
Hypomethylation of urokinase (uPA) promoter in breast and prostate cancer: prognostic and therapeutic implicationsPouya Pakneshan
Department of Medicine, McGill University Health Center, Montreal, Canada
Curr Cancer Drug Targets 5:471-88. 2005..In this chapter, we will review DNA methylation as the underlying molecular mechanism regulating uPA gene expression and its potential diagnostic, prognostic and therapeutic implication...
Maternal care effects on the hippocampal transcriptome and anxiety-mediated behaviors in the offspring that are reversible in adulthoodIan C G Weaver
Douglas Hospital Research Center, Montreal, QC, Canada
Proc Natl Acad Sci U S A 103:3480-5. 2006..These results suggest that early-life experience has a stable and broad effect on the hippocampal transcriptome and anxiety-mediated behavior, which is potentially reversible in adulthood...
Valproate induces widespread epigenetic reprogramming which involves demethylation of specific genesSnezana Milutinovic
Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
Carcinogenesis 28:560-71. 2007..The implications of our results on the future therapeutic utilities of VPA in cancer will be discussed...
Multiple isoforms of DNA methyltransferase are encoded by the vertebrate cytosine DNA methyltransferase geneJ Deng
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 273:22869-72. 1998..The data presented here point toward a new mechanism for generating diversity of DNA MeTases and possibly diverse DNA methylation patterns...
A mammalian protein with specific demethylase activity for mCpG DNAS K Bhattacharya
Department of Pharmacology and Therapeutics, McGill University, Montreal, QC, Canada
Nature 397:579-83. 1999..The discovery of this DNA demethylase should provide a basis for the molecular and developmental analysis of the role of DNA methylation and demethylation...
Organ and gestational age effects of maternal nutrient restriction on global methylation in fetal baboonsA Unterberger
Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
J Med Primatol 38:219-27. 2009..We tested the hypotheses that global methylation in fetal baboon demonstrates organ specificity, gestational age specificity, and changes with maternal nutritional status...
Environmental epigenomics: understanding the effects of parental care on the epigenomePatrick O McGowan
Department of Psychiatry, McGill University, Montreal, Quebec H3G1Y6, Canada
Essays Biochem 48:275-87. 2010..In the present chapter, we will discuss evidence that epigenetic processes early in life play a role in defining inter-individual trajectories of behaviour, with implications for mental health in adulthood...
Epigenetic regulation of the glucocorticoid receptor in human brain associates with childhood abusePatrick O McGowan
Douglas Mental Health University Institute, 6875 LaSalle Boulevard, Montreal, Quebec, H4H 1R3, Canada
Nat Neurosci 12:342-8. 2009..These findings translate previous results from rat to humans and suggest a common effect of parental care on the epigenetic regulation of hippocampal glucocorticoid receptor expression...
Regulation of DNA methylation in human breast cancer. Effect on the urokinase-type plasminogen activator gene production and tumor invasionYongjing Guo
Departments of Medicine and Pharmacology, McGill University Health Center, Montreal, Quebec H3A 1A1, Canada
J Biol Chem 277:41571-9. 2002..Taken together, these results provide insight into the mechanism regulating the transcription of the uPA gene in the complex multistep process of breast cancer progression...
Methylation and inhibition of expression of uPA by the RAS oncogene: divergence of growth control and invasion in breast cancer cellsPouya Pakneshan
Department of Medicine and Department of Pharmacology, McGill University Health Center, Montreal, Canada
Carcinogenesis 26:557-64. 2005..This has important implications for new therapeutic approaches to metastasizing cancer...
Epigenomic stress response. Knockdown of DNA methyltransferase 1 triggers an intra-S-phase arrest of DNA replication and induction of stress response genesSnezana Milutinovic
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 278:14985-95. 2003..Based on these data, we suggest that this stress response mechanism evolved to guard against buildup of DNA methylation errors and to coordinate inheritance of genomic and epigenomic information...
Dynamic epigenetic states of ribosomal RNA promoters during the cell cycleShelley E Brown
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
Cell Cycle 7:382-90. 2008..This data is consistent with the idea that epigenetic states are dynamic in somatic cells and might participate in physiological cellular responses...
AUF1 cell cycle variations define genomic DNA methylation by regulation of DNMT1 mRNA stabilityJerome Torrisani
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
Mol Cell Biol 27:395-410. 2007..In this study, we demonstrate a link between AUF1, the RNA degradation machinery, and maintenance of the epigenetic integrity of the cell...
Valproate induces replication-independent active DNA demethylationNancy Detich
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6 Canada
J Biol Chem 278:27586-92. 2003....
On the mechanism of demethylation of 5-methylcytosine in DNAStefan Hamm
Department of Chemistry, McGill University, Montreal, QB, Canada
Bioorg Med Chem Lett 18:1046-9. 2008..A mechanism of the DNA demethylation reaction is proposed based on this observation...
The mouse DNA methyltransferase 5'-region. A unique housekeeping gene promoterJ Rouleau
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
J Biol Chem 267:7368-77. 1992..We suggest that the DNA MeTase promoter represents a new class of housekeeping gene promoters that was designed to ensure high fidelity regulation of gene expression...
Altered mitogen-activated protein kinase signaling, tau hyperphosphorylation and mild spatial learning dysfunction in transgenic rats expressing the beta-amyloid peptide intracellularly in hippocampal and cortical neuronsV Echeverria
Department of Pharmacology, McGill University, 3655 Promenade Sir-William-Osler, Montreal, Quebec, Canada H3G 1Y6
Neuroscience 129:583-92. 2004....
Promoter-specific activation and demethylation by MBD2/demethylaseNancy Detich
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 277:35791-4. 2002..1His vector. We propose that a single protein possessing both repressor and demethylase functions has evolved to coordinate a program that requires suppression of some methylated genes and activation of others...
The oncoprotein Set/TAF-1beta, an inhibitor of histone acetyltransferase, inhibits active demethylation of DNA, integrating DNA methylation and transcriptional silencingNadia Cervoni
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 277:25026-31. 2002....
Antisense MBD2 gene therapy inhibits tumorigenesisAndrew Slack
Department of Pharmacology and Therapeutics, McGill University, 3655 Drummond Street, Montreal, PQ H3G 1Y6, Canada
J Gene Med 4:381-9. 2002..CONCLUSIONS: These results support the hypothesis that one or both of the functions described for MBD2 are critical in tumorigenesis and that MBD2 is a potential anticancer target...
Proliferating cell nuclear antigen associates with histone deacetylase activity, integrating DNA replication and chromatin modificationSnezana Milutinovic
Department of Pharmacology and Therapeutics, McGill University, 3655 Drummond Street, Montreal, Quebec H3G 1Y6, Canada
J Biol Chem 277:20974-8. 2002..Our results strengthen the role of PCNA as a factor coordinating DNA replication and epigenetic inheritance...
The epigenetics of social adversity in early life: implications for mental health outcomesPatrick O McGowan
Department of Psychiatry, McGill University, Montreal, Quebec, Canada
Neurobiol Dis 39:66-72. 2010..In this regard, we will examine evidence for the possibility that epigenetic mechanisms can contribute to later-onset neurological dysfunction and disease...
Extracting DNA demethylase activity from mammalian cellsMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
Methods Mol Biol 200:163-76. 2002
Epigenetic programming of the rRNA promoter by MBD3Shelley E Brown
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G 1Y6, Canada
Mol Cell Biol 27:4938-52. 2007..This is the first demonstration that MBD3 is involved in inducing and maintaining the demethylated state of a specific promoter...
DNA methyltransferase 1 knockdown activates a replication stress checkpointAlexander Unterberger
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec, Canada H3G 1Y6
Mol Cell Biol 26:7575-86. 2006..Our data are consistent with the hypothesis that removal of DNMT1 from replication forks is the trigger for this response...
Maternal care associated with methylation of the estrogen receptor-alpha1b promoter and estrogen receptor-alpha expression in the medial preoptic area of female offspringFrances A Champagne
Douglas Hospital Research Center, , , Canada H4H 1R3
Endocrinology 147:2909-15. 2006....
Variations in DNA methylation patterns during the cell cycle of HeLa cellsShelley E Brown
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada
Epigenetics 2:54-65. 2007..This is the first demonstration of a dynamic DNA methylation pattern within a single cell cycle of a mature somatic cell. These data are important for our understanding of the stability of DNA methylation patterns in somatic cells...
Regional-specific global cytosine methylation and DNA methyltransferase expression in the adult rat hippocampusShelley E Brown
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Oslar Promenade, and Douglas Hospital Research Center, Montreal, Quebec H3G 1Y6, Canada
Neurosci Lett 440:49-53. 2008....
DNA demethylation induced by the methyl-CpG-binding domain protein MBD3Shelley E Brown
McGill University, Department of Pharmacology and Therapeutics, Montreal, Quebec, Canada H3G 1Y6
Gene 420:99-106. 2008..These data demonstrate a causal relationship between MBD3 and DNA demethylation of genomic targets in cells...
Alternative splicing, methylation state, and expression profile of tropomyosin-related kinase B in the frontal cortex of suicide completersCarl Ernst
Departments ofNeurology and Neurosurgery, Douglas Hospital Research Institute, Montreal, QC H4H 1R3, Canada
Arch Gen Psychiatry 66:22-32. 2009..A truncated variant of the tropomyosin-related kinase B (TrkB.T1) is expressed in astrocytes, and brain-derived neurotrophic factor-TrkB signaling has been linked to mood disorders...
The effects of pH on DNA methylation state: In vitro and post-mortem brain studiesCarl Ernst
McGill Group for Suicide Studies, McGill University, Montreal, Canada
J Neurosci Methods 174:123-5. 2008..No correlation was found between DNA methylation state and pH. These results suggest that DNA methylation state is stable in post-mortem brain...
Human DNA methyltransferase gene DNMT1 is regulated by the APC pathwayPaul M Campbell
Department of Pharmacology and Therapeutics, McGill University, Montreal, Quebec, Canada H3G 1Y6
Carcinogenesis 24:17-24. 2003..These data support future consideration of DNMT1 as a target in the treatment of CRC...
Rat transgenic models with a phenotype of intracellular Abeta accumulation in hippocampus and cortexValentina Echeverria
Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
J Alzheimers Dis 6:209-19. 2004..A preliminary protein analysis of the hippocampus of the double transgenic rat (UKUR25) by mass spectrometry showed differences in the protein profile between this transgenic line and controls...
Methylated DNA-binding protein 2 antisense inhibitors suppress tumourigenesis of human cancer cell lines in vitro and in vivoPaul M Campbell
Department of Pharmacology and Therapeutics, McGill University, 3655 Sir William Osler Promenade, Montreal, Quebec H3G1Y6, Canada
Carcinogenesis 25:499-507. 2004....
Measuring DNA demethylase activity in vitroMoshe Szyf
Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
Methods Mol Biol 200:155-61. 2002
Developmental programming through epigenetic changesAnne Monique Nuyt
Circ Res 100:452-5. 2007
