Age and sun exposure-related widespread genomic blocks of hypomethylation in nonmalignant skin.

Abstract:

BACKGROUND:Aging and sun exposure are the leading causes of skin cancer. It has been shown that epigenetic changes, such as DNA methylation, are well established mechanisms for cancer, and also have emerging roles in aging and common disease. Here, we directly ask whether DNA methylation is altered following skin aging and/or chronic sun exposure in humans. RESULTS:We compare epidermis and dermis of both sun-protected and sun-exposed skin derived from younger subjects (under 35 years old) and older subjects (over 60 years old), using the Infinium HumanMethylation450 array and whole genome bisulfite sequencing. We observe large blocks of the genome that are hypomethylated in older, sun-exposed epidermal samples, with the degree of hypomethylation associated with clinical measures of photo-aging. We replicate these findings using whole genome bisulfite sequencing, comparing epidermis from an additional set of younger and older subjects. These blocks largely overlap known hypomethylated blocks in colon cancer and we observe that these same regions are similarly hypomethylated in squamous cell carcinoma samples. CONCLUSIONS:These data implicate large scale epigenomic change in mediating the effects of environmental damage with photo-aging.

journal_name

Genome Biol

journal_title

Genome biology

authors

Vandiver AR,Irizarry RA,Hansen KD,Garza LA,Runarsson A,Li X,Chien AL,Wang TS,Leung SG,Kang S,Feinberg AP

doi

10.1186/s13059-015-0644-y

subject

Has Abstract

pub_date

2015-04-16 00:00:00

pages

80

eissn

1474-7596

issn

1474-760X

pii

10.1186/s13059-015-0644-y

journal_volume

16

pub_type

杂志文章
  • Activity map of the tammar X chromosome shows that marsupial X inactivation is incomplete and escape is stochastic.

    abstract:BACKGROUND:X chromosome inactivation is a spectacular example of epigenetic silencing. In order to deduce how this complex system evolved, we examined X inactivation in a model marsupial, the tammar wallaby (Macropus eugenii). In marsupials, X inactivation is known to be paternal, incomplete and tissue-specific, and oc...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2010-11-12-r122

    authors: Al Nadaf S,Waters PD,Koina E,Deakin JE,Jordan KS,Graves JA

    更新日期:2010-01-01 00:00:00

  • Alternative splicing is required for stage differentiation in malaria parasites.

    abstract:BACKGROUND:In multicellular organisms, alternative splicing is central to tissue differentiation and identity. Unicellular protists lack multicellular tissue but differentiate into variable cell types during their life cycles. The role of alternative splicing in transitions between cell types and establishing cellular ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-019-1756-6

    authors: Yeoh LM,Goodman CD,Mollard V,McHugh E,Lee VV,Sturm A,Cozijnsen A,McFadden GI,Ralph SA

    更新日期:2019-08-01 00:00:00

  • Predicting the effects of frameshifting indels.

    abstract::Each human has approximately 50 to 280 frameshifting indels, yet their implications are unknown. We created SIFT Indel, a prediction method for frameshifting indels that has 84% accuracy. The percentage of human frameshifting indels predicted to be gene-damaging is negatively correlated with allele frequency. We also ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2012-13-2-r9

    authors: Hu J,Ng PC

    更新日期:2012-02-09 00:00:00

  • A computational investigation of kinetoplastid trans-splicing.

    abstract::Trans-splicing is an unusual process in which two separate RNA strands are spliced together to yield a mature mRNA. We present a novel computational approach which has an overall accuracy of 82% and can predict 92% of known trans-splicing sites. We have applied our method to chromosomes 1 and 3 of Leishmania major, wi...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2005-6-11-r95

    authors: Gopal S,Awadalla S,Gaasterland T,Cross GA

    更新日期:2005-01-01 00:00:00

  • Pharmacogenomic analysis of patient-derived tumor cells in gynecologic cancers.

    abstract:BACKGROUND:Gynecologic malignancy is one of the leading causes of mortality in female adults worldwide. Comprehensive genomic analysis has revealed a list of molecular aberrations that are essential to tumorigenesis, progression, and metastasis of gynecologic tumors. However, targeting such alterations has frequently l...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-019-1848-3

    authors: Sa JK,Hwang JR,Cho YJ,Ryu JY,Choi JJ,Jeong SY,Kim J,Kim MS,Paik ES,Lee YY,Choi CH,Kim TJ,Kim BG,Bae DS,Lee Y,Her NG,Shin YJ,Cho HJ,Kim JY,Seo YJ,Koo H,Oh JW,Lee T,Kim HS,Song SY,Bae JS,Park WY,Han HD

    更新日期:2019-11-26 00:00:00

  • Prediction of synergistic transcription factors by function conservation.

    abstract:BACKGROUND:Previous methods employed for the identification of synergistic transcription factors (TFs) are based on either TF enrichment from co-regulated genes or phylogenetic footprinting. Despite the success of these methods, both have limitations. RESULTS:We propose a new strategy to identify synergistic TFs by fu...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-12-r257

    authors: Hu Z,Hu B,Collins JF

    更新日期:2007-01-01 00:00:00

  • Comparison of the oxidative phosphorylation (OXPHOS) nuclear genes in the genomes of Drosophila melanogaster, Drosophila pseudoobscura and Anopheles gambiae.

    abstract:BACKGROUND:In eukaryotic cells, oxidative phosphorylation (OXPHOS) uses the products of both nuclear and mitochondrial genes to generate cellular ATP. Interspecies comparative analysis of these genes, which appear to be under strong functional constraints, may shed light on the evolutionary mechanisms that act on a set...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2005-6-2-r11

    authors: Tripoli G,D'Elia D,Barsanti P,Caggese C

    更新日期:2005-01-01 00:00:00

  • SAGE profiling of the forelimb and hindlimb.

    abstract::A recent study has used serial analysis of gene expression to compare mouse forelimb and hindlimb gene-expression profiles. The method successfully identified known regulators of limb identity and has generated a candidate set of differentially expressed genes that may regulate limb identity. ...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2002-3-3-reviews1007

    authors: Logan M

    更新日期:2002-01-01 00:00:00

  • Genetic analysis of the human infective trypanosome Trypanosoma brucei gambiense: chromosomal segregation, crossing over, and the construction of a genetic map.

    abstract:BACKGROUND:Trypanosoma brucei is the causative agent of human sleeping sickness and animal trypanosomiasis in sub-Saharan Africa, and it has been subdivided into three subspecies: Trypanosoma brucei gambiense and Trypanosoma brucei rhodesiense, which cause sleeping sickness in humans, and the nonhuman infective Trypano...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2008-9-6-r103

    authors: Cooper A,Tait A,Sweeney L,Tweedie A,Morrison L,Turner CM,MacLeod A

    更新日期:2008-01-01 00:00:00

  • Altered retinal microRNA expression profile in a mouse model of retinitis pigmentosa.

    abstract:BACKGROUND:The role played by microRNAs (miRs) as common regulators in physiologic processes such as development and various disease states was recently highlighted. Retinitis pigmentosa (RP) linked to RHO (which encodes rhodopsin) is the most frequent form of inherited retinal degeneration that leads to blindness, for...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-11-r248

    authors: Loscher CJ,Hokamp K,Kenna PF,Ivens AC,Humphries P,Palfi A,Farrar GJ

    更新日期:2007-01-01 00:00:00

  • Normalization of boutique two-color microarrays with a high proportion of differentially expressed probes.

    abstract::Normalization is critical for removing systematic variation from microarray data. For two-color microarray platforms, intensity-dependent lowess normalization is commonly used to correct relative gene expression values for biases. Here we outline a normalization method for use when the assumptions of lowess normalizat...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-1-r2

    authors: Oshlack A,Emslie D,Corcoran LM,Smyth GK

    更新日期:2007-01-01 00:00:00

  • Transcriptional profiling of long non-coding RNAs and novel transcribed regions across a diverse panel of archived human cancers.

    abstract:BACKGROUND:Molecular characterization of tumors has been critical for identifying important genes in cancer biology and for improving tumor classification and diagnosis. Long non-coding RNAs, as a new, relatively unstudied class of transcripts, provide a rich opportunity to identify both functional drivers and cancer-t...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2012-13-8-r75

    authors: Brunner AL,Beck AH,Edris B,Sweeney RT,Zhu SX,Li R,Montgomery K,Varma S,Gilks T,Guo X,Foley JW,Witten DM,Giacomini CP,Flynn RA,Pollack JR,Tibshirani R,Chang HY,van de Rijn M,West RB

    更新日期:2012-08-28 00:00:00

  • Obstacles to detecting isoforms using full-length scRNA-seq data.

    abstract:BACKGROUND:Early single-cell RNA-seq (scRNA-seq) studies suggested that it was unusual to see more than one isoform being produced from a gene in a single cell, even when multiple isoforms were detected in matched bulk RNA-seq samples. However, these studies generally did not consider the impact of dropouts or isoform ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-020-01981-w

    authors: Westoby J,Artemov P,Hemberg M,Ferguson-Smith A

    更新日期:2020-03-23 00:00:00

  • Polysome profiling reveals translational control of gene expression in the human malaria parasite Plasmodium falciparum.

    abstract:BACKGROUND:In eukaryotic organisms, gene expression is regulated at multiple levels during the processes of transcription and translation. The absence of a tight regulatory network for transcription in the human malaria parasite suggests that gene expression may largely be controlled at post-transcriptional and transla...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2013-14-11-r128

    authors: Bunnik EM,Chung DW,Hamilton M,Ponts N,Saraf A,Prudhomme J,Florens L,Le Roch KG

    更新日期:2013-11-22 00:00:00

  • Mammalian conserved ADAR targets comprise only a small fragment of the human editosome.

    abstract:BACKGROUND:ADAR proteins are among the most extensively studied RNA binding proteins. They bind to their target and deaminate specific adenosines to inosines. ADAR activity is essential, and the editing of a subset of their targets is critical for viability. Recently, a huge number of novel ADAR targets were detected b...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2014-15-1-r5

    authors: Pinto Y,Cohen HY,Levanon EY

    更新日期:2014-01-07 00:00:00

  • Is 'big biology' a commercial enterprise?

    abstract::Big projects in biology - such as the human genome project and a number of related and ensuing enterprises - require big funding. A new tradition is growing in which some types of basic research take place within commercial organizations. This article reviews some of the reasons for this and some of the key players, i...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2002-3-4-comment2004

    authors: Swindells M

    更新日期:2002-01-01 00:00:00

  • Non-base-contacting residues enable kaleidoscopic evolution of metazoan C2H2 zinc finger DNA binding.

    abstract:BACKGROUND:The C2H2 zinc finger (C2H2-ZF) is the most numerous protein domain in many metazoans, but is not as frequent or diverse in other eukaryotes. The biochemical and evolutionary mechanisms that underlie the diversity of this DNA-binding domain exclusively in metazoans are, however, mostly unknown. RESULTS:Here,...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1287-y

    authors: Najafabadi HS,Garton M,Weirauch MT,Mnaimneh S,Yang A,Kim PM,Hughes TR

    更新日期:2017-09-06 00:00:00

  • Characterization of background noise in capture-based targeted sequencing data.

    abstract:BACKGROUND:Targeted deep sequencing is increasingly used to detect low-allelic fraction variants; it is therefore essential that errors that constitute baseline noise and impose a practical limit on detection are characterized. In the present study, we systematically evaluate the extent to which errors are incurred dur...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-017-1275-2

    authors: Park G,Park JK,Shin SH,Jeon HJ,Kim NKD,Kim YJ,Shin HT,Lee E,Lee KH,Son DS,Park WY,Park D

    更新日期:2017-07-21 00:00:00

  • Supervised harvesting of expression trees.

    abstract:BACKGROUND:We propose a new method for supervised learning from gene expression data. We call it 'tree harvesting'. This technique starts with a hierarchical clustering of genes, then models the outcome variable as a sum of the average expression profiles of chosen clusters and their products. It can be applied to many...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2001-2-1-research0003

    authors: Hastie T,Tibshirani R,Botstein D,Brown P

    更新日期:2001-01-01 00:00:00

  • Genome-wide investigation of light and carbon signaling interactions in Arabidopsis.

    abstract:BACKGROUND:Light and carbon are two essential signals influencing plant growth and development. Little is known about how carbon and light signaling pathways intersect or influence one another to affect gene expression. RESULTS:Microarrays are used to investigate carbon and light signaling interactions at a genome-wid...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2004-5-2-r10

    authors: Thum KE,Shin MJ,Palenchar PM,Kouranov A,Coruzzi GM

    更新日期:2004-01-01 00:00:00

  • Searching for SNPs with cloud computing.

    abstract::As DNA sequencing outpaces improvements in computer speed, there is a critical need to accelerate tasks like alignment and SNP calling. Crossbow is a cloud-computing software tool that combines the aligner Bowtie and the SNP caller SOAPsnp. Executing in parallel using Hadoop, Crossbow analyzes data comprising 38-fold ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2009-10-11-r134

    authors: Langmead B,Schatz MC,Lin J,Pop M,Salzberg SL

    更新日期:2009-01-01 00:00:00

  • Is mouse embryonic stem cell technology obsolete?

    abstract::Injection of recombinant Cas9 protein and synthetic guide RNAs into mouse zygotes has been shown to facilitate gene disruption and knock-ins using the CRISPR system. These technologies may soon displace genetic modification using embryonic stem cells. ...

    journal_title:Genome biology

    pub_type: 评论,杂志文章

    doi:10.1186/s13059-015-0673-6

    authors: Skarnes WC

    更新日期:2015-05-27 00:00:00

  • Tracing the origin of disseminated tumor cells in breast cancer using single-cell sequencing.

    abstract:BACKGROUND:Single-cell micro-metastases of solid tumors often occur in the bone marrow. These disseminated tumor cells (DTCs) may resist therapy and lay dormant or progress to cause overt bone and visceral metastases. The molecular nature of DTCs remains elusive, as well as when and from where in the tumor they origina...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-016-1109-7

    authors: Demeulemeester J,Kumar P,Møller EK,Nord S,Wedge DC,Peterson A,Mathiesen RR,Fjelldal R,Zamani Esteki M,Theunis K,Fernandez Gallardo E,Grundstad AJ,Borgen E,Baumbusch LO,Børresen-Dale AL,White KP,Kristensen VN,Van Loo P,

    更新日期:2016-12-09 00:00:00

  • Genetic subtraction profiling identifies genes essential for Arabidopsis reproduction and reveals interaction between the female gametophyte and the maternal sporophyte.

    abstract:BACKGROUND:The embryo sac contains the haploid maternal cell types necessary for double fertilization and subsequent seed development in plants. Large-scale identification of genes expressed in the embryo sac remains cumbersome because of its inherent microscopic and inaccessible nature. We used genetic subtraction and...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2007-8-10-r204

    authors: Johnston AJ,Meier P,Gheyselinck J,Wuest SE,Federer M,Schlagenhauf E,Becker JD,Grossniklaus U

    更新日期:2007-01-01 00:00:00

  • External signals shape the epigenome.

    abstract::A new study shows how a single cytokine, interleukin-4, regulates hematopoietic lineage choice by activating the JAK3-STAT6 pathway, which causes dendritic-cell-specific DNA demethylation. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/s13059-016-0884-5

    authors: Lennartsson A

    更新日期:2016-02-01 00:00:00

  • Allele-specific copy number analysis of tumor samples with aneuploidy and tumor heterogeneity.

    abstract::We describe a bioinformatic tool, Tumor Aberration Prediction Suite (TAPS), for the identification of allele-specific copy numbers in tumor samples using data from Affymetrix SNP arrays. It includes detailed visualization of genomic segment characteristics and iterative pattern recognition for copy number identificati...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2011-12-10-r108

    authors: Rasmussen M,Sundström M,Göransson Kultima H,Botling J,Micke P,Birgisson H,Glimelius B,Isaksson A

    更新日期:2011-10-24 00:00:00

  • Transcriptional regulation of metastatic [Id]entity by KLF17.

    abstract::A novel in vivo screening approach has identified KLF17 as a key metastasis suppressor gene that acts through regulation of Id1 transcription factor-dependent induction of the epithelial-to-mesenchymal transition. ...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2009-10-11-244

    authors: Iwanicki MP,Brugge JS

    更新日期:2009-01-01 00:00:00

  • Identification of cyanobacterial non-coding RNAs by comparative genome analysis.

    abstract:BACKGROUND:Whole genome sequencing of marine cyanobacteria has revealed an unprecedented degree of genomic variation and streamlining. With a size of 1.66 megabase-pairs, Prochlorococcus sp. MED4 has the most compact of these genomes and it is enigmatic how the few identified regulatory proteins efficiently sustain the...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2005-6-9-r73

    authors: Axmann IM,Kensche P,Vogel J,Kohl S,Herzel H,Hess WR

    更新日期:2005-01-01 00:00:00

  • Moving beyond genome sequencing into personalized genomic medicine: biological and computing challenges.

    abstract::A report of the second annual Beyond the Genome conference held on the 19-22 September 2011 at The Universities at Shady Grove, Rockville, Maryland, USA, where increases in computing that may help make personal genomics a reality were a major focus. ...

    journal_title:Genome biology

    pub_type: 杂志文章

    doi:10.1186/gb-2011-12-10-308

    authors: Kristensen DM

    更新日期:2011-10-24 00:00:00

  • Toxicity in mice expressing short hairpin RNAs gives new insight into RNAi.

    abstract::Short hairpin RNAs can provide stable gene silencing via RNA interference. Recent studies have shown toxicity in vivo that appears to be related to saturation of the endogenous microRNA pathway. Will these findings limit the therapeutic use of such hairpins? ...

    journal_title:Genome biology

    pub_type: 杂志文章,评审

    doi:10.1186/gb-2006-7-8-231

    authors: Snøve O Jr,Rossi JJ

    更新日期:2006-01-01 00:00:00