journal
MENU ▼
Read by QxMD icon Read
search

Epigenomics

journal
https://www.readbyqxmd.com/read/28699367/a-comprehensive-review-of-lysine-specific-demethylase-1-and-its-roles-in-cancer
#1
Amir Hosseini, Saverio Minucci
Histone methylation plays a key role in the regulation of chromatin structure, and its dynamics regulates important cellular processes. The investigation of the role of alterations in histone methylation in cancer has led to the identification of histone methyltransferases and demethylases as promising novel targets for therapy. Lysine-specific demethylase 1(LSD1, also known as KDM1A) is the first discovered histone lysine demethylase, with the ability to demethylase H3K4me1/2 and H3K9me1/2 at target loci in a context-dependent manner...
July 12, 2017: Epigenomics
https://www.readbyqxmd.com/read/28651445/cellular-reprogramming-technology-for-dissecting-cancer-epigenome-in-vivo
#2
Kenji Ito, Yasuhiro Yamada
Decades of studies have shown that epigenetic alterations play a significant role on cancer development both in vitro and in vivo. However, considering that many cancers harbor mutations at epigenetic modifier genes and that transcription factor-mediated gene regulations are tightly coupled with epigenetic modifications, the majority of epigenetic alterations in cancers could be the consequence of the dysfunction or dysregulation of epigenetic modifiers caused by genetic abnormalities. Therefore, it remains unclear whether bona fide epigenetic abnormalities have causal roles on cancer development...
June 27, 2017: Epigenomics
https://www.readbyqxmd.com/read/28621161/dna-methylation-patterns-in-ulcerative-colitis-associated-cancer-a-systematic-review
#3
Ruth A Emmett, Katherine L Davidson, Nicholas J Gould, Ramesh P Arasaradnam
BACKGROUND: Evidence points to the role of DNA methylation in ulcerative colitis (UC) associated cancer (UCC), the most serious complication of ulcerative colitis. A better understanding of the etiology of UCC may facilitate the development of new therapeutic targets and help to identify biomarkers of the disease risk. METHODS: A search was performed in three databases following PRISMA protocol. DNA methylation in UCC was compared with sporadic colorectal cancer (SCRC), and individual genes differently methylated in UCC identified...
June 16, 2017: Epigenomics
https://www.readbyqxmd.com/read/28621160/epigenome-wide-association-study-of-chronic-obstructive-pulmonary-disease-and-lung-function-in-koreans
#4
Mi Kyeong Lee, Yoonki Hong, Sun-Young Kim, Woo Jin Kim, Stephanie J London
AIM: To identify differentially methylated probes (DMPs) and regions (DMRs) in relation to chronic obstructive pulmonary disease (COPD) and lung function traits. METHODS: We performed an epigenome-wide association study of COPD and spirometric parameters, including forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC, in blood DNA using the Infinium HumanMethylation450 (n = 100, a Korean COPD cohort). RESULTS: We found one significant DMP (cg03559389, DIP2C) and 104 significant DMRs after multiple-testing correction...
June 16, 2017: Epigenomics
https://www.readbyqxmd.com/read/28621149/identification-and-evaluation-of-lncrna-and-mrna-integrative-modules-in-human-peripheral-blood-mononuclear-cells
#5
Xing-Bo Mo, Long-Fei Wu, Xiao-Wei Zhu, Wei Xia, Lan Wang, Pei He, Peng-Fei Bing, Xin Lu, Yong-Hong Zhang, Fei-Yan Deng, Shu-Feng Lei
AIM: To identify sets of functionally related long noncoding RNAs (lncRNAs) and mRNAs and to evaluate the importance of lncRNAs in an lncRNA-mRNA network. METHODS: We carried out weighted gene co-expression network analysis and enrichment analyses to identify functional modules of co-expressed lncRNAs and mRNAs in human peripheral blood mononuclear cells of 43 females. RESULTS: We identified seven modules and found hub lncRNAs in each module...
June 16, 2017: Epigenomics
https://www.readbyqxmd.com/read/28617183/hypermethylated-cpg-sites-in-the-mtr-gene-promoter-in-preterm-placenta
#6
Vinita V Khot, Dilip K Yadav, Smeeta Shrestha, Lovejeet Kaur, Deepali P Sundrani, Preeti M Chavan-Gautam, Savita S Mehendale, Giriraj R Chandak, Sadhana R Joshi
AIM: Altered maternal one-carbon metabolism influences placental DNA methylation patterns and 'programs' the fetus for noncommunicable diseases in adult life. EXPERIMENTAL PROCEDURES: Levels of plasma folate, vitamin B12, homocysteine, mRNA and protein levels of MTHFR and MTR enzymes in placenta were compared among women delivering preterm (n = 83) and term (n = 75). MTR promoter CpG methylation was undertaken. RESULTS: MTHFR and MTR mRNA levels were higher while protein levels were lower, and MTR CpG sites were hypermethylated in the preterm group, as compared with the term group...
June 15, 2017: Epigenomics
https://www.readbyqxmd.com/read/28617138/targeting-transcription-factor-lysine-acetylation-in-inflammatory-airway-diseases
#7
Thea van den Bosch, Marcel Kwiatkowski, Rainer Bischoff, Frank J Dekker
Asthma and chronic obstructive pulmonary disease are inflammatory airway diseases for which alternative therapeutic strategies are urgently needed. Interestingly, HDAC inhibitors show anti-inflammatory effects in mouse models for these diseases. Here we explore underlying mechanisms that may explain these effects. In previous studies, effects of HDAC inhibitors on histone acetylation are often correlated with their effects on gene expression. However, effects of HDAC inhibitors on transcription factors and their acetylation status may be particularly important in explaining these effects...
June 15, 2017: Epigenomics
https://www.readbyqxmd.com/read/28617096/details-matter-the-role-of-genomic-location-and-assay-standardization-in-dna-methylation-analyses
#8
Guro E Lind, Manon van Engeland
No abstract text is available yet for this article.
June 15, 2017: Epigenomics
https://www.readbyqxmd.com/read/28548583/a-modified-bisulfite-conversion-method-for-the-detection-of-dna-methylation
#9
Hanze Wang, Huican Ke, Yansong Zheng, Junzhong Lai, Qianping Luo, Qi Chen
AIM: Our purpose is to improve the conventional procedures for bisulfite conversion used to detect 5-methylcytosine in DNA. METHODS: Impacts of different bisulfite salts, bisulfite conversion temperature, antioxidants and denaturants on DNA conversion and degradation were assessed by methylation-sensitive melt curve analysis. The modified method was tested on different genes and the conversion efficiency was analyzed by bisulfite sequencing. RESULTS: We developed a modified bisulfite conversion method that completes this process within 2 h...
May 26, 2017: Epigenomics
https://www.readbyqxmd.com/read/28530839/meeting-report-of-the-fifth-international-cancer-epigenetics-conference-in-beijing-china-october-2016
#10
Dan Gao, James G Herman, Hengmi Cui, Jin Jen, Francois Fuks, Malcolm V Brock, Toshikazu Ushijima, Carlo Croce, Yoshimitsu Akiyama, Mingzhou Guo
Fifth International Cancer Epigenetics Conference, Beijing, China, 21-23 October 2016 This meeting reported many new findings in the field of cancer epigenetics, including basic science, translational and clinical studies. In this report, we summarize some of the main advancements and prospects in cancer epigenetics presented at this meeting.
May 22, 2017: Epigenomics
https://www.readbyqxmd.com/read/28523967/comparative-assessment-of-dna-methylation-patterns-between-reduced-representation-bisulfite-sequencing-and-sequenom-epityper-methylation-analysis
#11
Aniruddha Chatterjee, Erin C Macaulay, Antonio Ahn, Jackie L Ludgate, Peter A Stockwell, Rob J Weeks, Matthew F Parry, Timothy J Foster, Ingrid M Knarston, Michael R Eccles, Ian M Morison
AIM: Validation of sequencing-based DNA methylation data is an important step for meaningful translation of findings. However, there has been limited assessment of different platforms to validate methylation data from next generation sequencing. METHODS: We performed a comparative methylation analysis between the genome-wide platform of reduced representation bisulfite sequencing with a targeted, Sequenom EpiTyper platform (four genes were analyzed in 15 cell lines covering 52 CpG sites)...
May 19, 2017: Epigenomics
https://www.readbyqxmd.com/read/28523931/epigenetics-and-noncommunicable-diseases
#12
Gemma C Sharp, Caroline L Relton
No abstract text is available yet for this article.
May 19, 2017: Epigenomics
https://www.readbyqxmd.com/read/28521512/the-brg1-atpase-of-human-swi-snf-chromatin-remodeling-enzymes-as-a-driver-of-cancer
#13
Qiong Wu, Jane B Lian, Janet L Stein, Gary S Stein, Jeffrey A Nickerson, Anthony N Imbalzano
Mammalian SWI/SNF enzymes are ATP-dependent remodelers of chromatin structure. These multisubunit enzymes are heterogeneous in composition; there are two catalytic ATPase subunits, BRM and BRG1, that are mutually exclusive, and additional subunits are incorporated in a combinatorial manner. Recent findings indicate that approximately 20% of human cancers contain mutations in SWI/SNF enzyme subunits, leading to the conclusion that the enzyme subunits are critical tumor suppressors. However, overexpression of specific subunits without apparent mutation is emerging as an alternative mechanism by which cellular transformation may occur...
May 19, 2017: Epigenomics
https://www.readbyqxmd.com/read/28517961/overcoming-chemoresistance-in-cancer-stem-cells-with-the-help-of-micrornas-in-colorectal-cancer
#14
Andrew Fesler, Shixiang Guo, Hua Liu, Ning Wu, Jingfang Ju
It has been recognized that acute resistance to chemotherapy mediated by post-transcriptional and translational control is crucial to influence response and survival in cancer treatment. Tumor cells are highly heterogeneous and have the ability to adapt a resistance phenotype through epigenetic regulations such as microRNAs. This poses a major challenge to the treatment of advanced stage colon cancer patients. Colon cancer stem cells have been identified as one of the major contributors to resistance of colon cancer to chemotherapy...
May 18, 2017: Epigenomics
https://www.readbyqxmd.com/read/28517952/dna-methylation-and-transcription-onset-in-the-brain
#15
Renaud Massart, Matthew Suderman, Valerie Mongrain, Moshe Szyf
AIM: The goal of this study was to test the state of methylation of transcription start positions in DNA that are actively involved in transcription. MATERIALS & METHODS: We used sequential ChIP-bisulfite-sequencing with an antibody to RNpolII-PS5 to map the state of methylation of actively transcribing transcription start sites (TSS). RESULTS: TSS that RNApolII-PS5 physically bind to, are ubiquitously unmethylated. TSS that appear to be both heavily methylated and transcriptionally active are truly a mixture of unmethylated TSS with bound RNApolII-PS5 in some nuclei and unbound methylated TSS in other nuclei...
May 18, 2017: Epigenomics
https://www.readbyqxmd.com/read/28488887/rapid-and-affordable-genome-wide-bisulfite-dna-sequencing-by-xmai-reduced-representation-bisulfite-sequencing
#16
Alexander S Tanas, Marina E Borisova, Ekaterina B Kuznetsova, Viktoria V Rudenko, Kristina O Karandasheva, Marina V Nemtsova, Vera L Izhevskaya, Olga A Simonova, Sergey S Larin, Dmitry V Zaletaev, Vladimir V Strelnikov
AIM: To develop a reduced representation bisulfite sequencing (RRBS) approach for rapid and affordable genome-wide DNA methylation analysis. METHODS: We have selected restriction endonuclease XmaI to produce RRBS library fragments. After digestion and partial fill-in DNA fragments were ligated to barcoded adapters, bisulfite converted, size-selected, and sequenced on the Ion Torrent Personal Genome Machine. XmaI-RRBS results were compared with the previously published RRBS data...
May 10, 2017: Epigenomics
https://www.readbyqxmd.com/read/28470125/aging-exceptional-longevity-and-comparisons-of-the-hannum-and-horvath-epigenetic-clocks
#17
Nicola J Armstrong, Karen A Mather, Anbupalam Thalamuthu, Margaret J Wright, Julian N Trollor, David Ames, Henry Brodaty, Peter R Schofield, Perminder S Sachdev, John B Kwok
AIM: To examine the relationships between two epigenetic clocks, aging and exceptional longevity. MATERIALS & METHODS: Participants were from three adult cohorts with blood DNA methylation data (Illumina 450 K, n = 275, 34-103 years). Epigenetic age (DNAmage) and age acceleration measures were calculated using the Hannum and Horvath epigenetic clocks. RESULTS: Across all cohorts, DNAmage was correlated with chronological age. In the long-lived cohort (Sydney Centenarian Study; 95+, n = 23), DNAmage was lower than chronological age for both clocks...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28470118/changes-in-high-density-lipoprotein-carried-mirna-contribution-to-the-plasmatic-pool-after-consumption-of-dietary-trans-fat-in-healthy-men
#18
Véronique Desgagné, Renée Guérin, Simon-Pierre Guay, François Corbin, Patrick Couture, Benoit Lamarche, Luigi Bouchard
AIM: High-density lipoproteins (HDLs) are associated to cardioprotection and transport functional miRNAs in circulation. The aim of this study is to assess whether consumption of trans fatty acids (TFAs) modifies the HDL-carried miRNA concentration and their contribution to the plasmatic pool. METHODS: In a double-blind, randomized crossover controlled study, nine healthy men were fed each of three isoenergetic 4-week diets: first, rich in industrial TFAs; second, rich in TFAs from ruminants; third, low in TFAs...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28470097/phenylbutyrate-and-%C3%AE-cell-function-contribution-of-histone-deacetylases-and-er-stress-inhibition
#19
Sabbir Khan, Sandeep K Komarya, Gopabandhu Jena
Incidences of diabetes are increasing globally due to involvement of genetic and epigenetic factors. Phenylbutyrate (PBA) is a US FDA approved drug for treatment of urea cycle disorder in children. PBA reduces endoplasmic reticulum (ER) stress and is proven as a potent histone deacetylases (HDACs) inhibitor. Chronic ER stress results in unfolding protein response, which triggers apoptosis. Abnormal ER homoeostasis is responsible for defective processing of several genes/proteins and contributes to β-cell death/failure...
May 4, 2017: Epigenomics
https://www.readbyqxmd.com/read/28470095/impact-of-confounding-by-leukocyte-composition-on-associations-of-leukocyte-dna-methylation-with-common-risk-factors
#20
Jonathan Alexander Heiss, Hermann Brenner
AIM: One concern in epigenome-wide studies investigating leukocyte DNA methylation is that observed associations may at least partly reflect differences in leukocyte composition (LC) rather than changes in methylation. We estimated the magnitude of confounding by LC for common risk factors and diseases. MATERIALS & METHODS: Variation of LC according to sex, race, age, smoking, alcohol consumption, BMI, cardiovascular fitness, hypertension, coronary heart disease and diabetes was analyzed using blood differentials from 4117 participants of NHANES...
May 4, 2017: Epigenomics
journal
journal
42738
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"