Abstract:
:For datasets of gastric cancer collected by TCGA (The Cancer Genome Atlas) and GEO (Gene Expression Omnibus) repositories, we applied a bioinformatics approach to obtain expression data for the ISLR (immunoglobulin superfamily containing leucine-rich repeat) gene, which is highly expressed in gastric cancer tissues and closely associated with clinical prognosis. Although we did not observe an overall association of ISLR mutation, high expression or copy number variation with survival, hypomethylation of four methylated sites (assessed by the probes cg05195566, cg17258195, cg09664357, and cg07297039) of ISLR was negatively correlated with high expression levels of ISLR and was associated with poor clinical prognosis. In addition, we detected a correlation between ISLR expression and the infiltration levels of several immune cells, especially CD8+ T cells, macrophages and dendritic cells. We also identified a series of genes that were positively and negatively correlated with ISLR expression based on the TCGA-STAD, GSE13861, and GSE29272 datasets. Principal component analysis and random forest analysis were employed to further screen for six hub genes, including ISLR, COL1A2, CDH11, SPARC, COL3A1, and COL1A1, which exhibited a good ability to differentiate between tumor and normal samples. GO (Gene Ontology) and KEGG (Kyoto Encyclopedia of Genes and Genomes) pathway and gene set enrichment analysis data also suggested a potential relationship between ISLR gene expression and epithelial-mesenchymal transition (EMT). ISLR expression was negatively correlated with sensitivity to PX-12 and NSC632839. Taken together, these results show that the ISLR gene is involved in gastric carcinogenesis, and the underlying molecular mechanisms may include DNA methylation, EMT, and immune cell infiltration.
journal_name
Front Genetjournal_title
Frontiers in geneticsauthors
Li S,Zhao W,Sun Mdoi
10.3389/fgene.2020.00620subject
Has Abstractpub_date
2020-06-16 00:00:00pages
620issn
1664-8021journal_volume
11pub_type
杂志文章abstract::There is evidence of a purifying filter acting in the female germline to prevent the expansion of deleterious mutations in the mitochondrial DNA (mtDNA). Given our poor understanding of this filter, here we investigate the competence of the mouse embryo to eliminate dysfunctional mitochondria. Toward that, mitochondri...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00762
更新日期:2020-07-15 00:00:00
abstract::Nutrition is the most important environmental factor that can influence early developmental processes through regulation of epigenetic mechanisms during pregnancy and neonatal periods. Maternal diets or nutritional compositions contribute to the establishment of the epigenetic profiles in the fetus that have a profoun...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2018.00342
更新日期:2018-08-27 00:00:00
abstract::The phenotype of carcass traits in beef cattle are affected by random genetic and non-genetic effects, which both can be modulated by an environmental variable such as Temperature-Humidity Index (THI), a key environmental factor in cattle production. In this study, a multivariate reaction norm model (MRNM) was used to...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.576377
更新日期:2020-12-23 00:00:00
abstract::Molecular epidemiological studies have identified several risk factors linking to the genes and external factors in the pathogenesis of breast cancer. In this sense, genetic instability caused by DNA damage and DNA repair inefficiencies are important molecular events for the diagnosis and prognosis of therapies. There...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2017.00236
更新日期:2018-02-16 00:00:00
abstract::Transcription is a tightly regulated process ensuring the proper expression of numerous genes regulating all aspects of cellular behavior. Transcription factors regulate multiple genes including other transcription factors that together control a highly complex gene network. The transcriptional machinery can be "hijac...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2013.00254
更新日期:2013-11-28 00:00:00
abstract::Various patterns of multi-phenotype associations (MPAs) exist in the results of Genome Wide Association Studies (GWAS) involving different topologies of single nucleotide polymorphism (SNP)-phenotype associations. These can provide interesting information about the different impacts of a gene on closely related phenot...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00417
更新日期:2019-05-10 00:00:00
abstract::The biological pathology of deficit schizophrenia (DS) remains unclear. Matrix metalloproteinase 9 (MMP9) might be associated with neural plasticity and glutamate regulation, involved in schizophrenia pathogenesis. This study explores gene expression and DNA methylation of MMP9 in peripheral blood mononuclear cells (P...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00646
更新日期:2018-12-11 00:00:00
abstract::The objective of this study was to extract novel phenotypes related to disease resilience using daily feed intake data from growing pigs under a multifactorial natural disease challenge that was designed to mimic a commercial environment with high disease pressure to maximize expression of resilience. Data used were t...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00660
更新日期:2019-01-08 00:00:00
abstract:Objective:Extensive literature put forward the link between sleep and type 2 diabetes mellitus (T2DM), however, little is known about the underlying causality of the associations. Here we aim to assess the causal relationships between five major sleep-related traits and T2DM. Design Setting and Participants:Two-sample...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.607865
更新日期:2020-12-15 00:00:00
abstract::Extracellular vesicles (EVs) are abundant in most biological fluids and considered promising biomarker candidates, but the development of EV biomarker assays is hindered, in part, by their requirement for prior EV purification and the lack of standardized and reproducible EV isolation methods. We now describe a far-fi...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01273
更新日期:2019-12-17 00:00:00
abstract::There is a paradigm shift from the traditional focus on the "average" individual towards the definition and analysis of trait variation within individual life-history and among individuals in populations. This is a result of increasing availability of individual phenotypic data. The shift allows the use of genetic and...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00727
更新日期:2019-09-20 00:00:00
abstract::While efforts to control malaria with available tools have stagnated, and arbovirus outbreaks persist around the globe, the advent of clustered regularly interspaced short palindromic repeat (CRISPR)-based gene editing has provided exciting new opportunities for genetics-based strategies to control these diseases. In ...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.01072
更新日期:2019-10-30 00:00:00
abstract::Large-scale tumor genome sequencing projects have revealed a complex landscape of genomic mutations in multiple cancer types. A major goal of these projects is to characterize somatic mutations and discover cancer drivers, thereby providing important clues to uncover diagnostic or therapeutic targets for clinical trea...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00254
更新日期:2018-07-17 00:00:00
abstract::Fast growth is one of the most desired traits for all food animals, which affects the profitability of animal production. The Pacific oyster, Crassostrea gigas, is an important aquaculture shellfish around the world with the largest annual production. Growth of the Pacific oyster has been greatly improved by artificia...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00610
更新日期:2019-06-28 00:00:00
abstract::Myiopsitta monachus is a small Neotropical parrot (Psittaciformes: Arini Tribe) from subtropical and temperate regions of South America. It has a diploid chromosome number 2n = 48, different from other members of the Arini Tribe that have usually 70 chromosomes. The species has the lowest 2n within the Arini Tribe. In...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00721
更新日期:2020-07-10 00:00:00
abstract::Advanced castrate-resistant prostate cancer (CRPC) is a poorly prognostic disease currently lacking effective cure. Understanding the molecular mechanism that underlies the initiation and progression of CRPC will provide new strategies for treating this deadly disease. One candidate target is the fibroblast growth fac...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00012
更新日期:2019-01-30 00:00:00
abstract::Functional annotation of the genome is important to understand the phenotypic complexity of various species. The road toward functional annotation involves several challenges ranging from experiments on individual molecules to large-scale analysis of high-throughput sequencing (HTS) data. HTS data is typically a resul...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2015.00188
更新日期:2015-05-19 00:00:00
abstract::The first breeding program in the world for durum wheat was conceived in Italy in the early 1900s. Over the decades, pressure exerted by natural and artificial selection could have progressively reduced the genetic diversity of the durum wheat germplasm. In the present study, a large panel of Italian durum wheat acces...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00217
更新日期:2020-04-21 00:00:00
abstract::Complex traits are manifestations of intricate gene interaction networks. Evolution of complex traits revolves around the genetic variation in such networks. Genomics has increased our ability to investigate the complex gene interaction networks, and characterize the extent of genetic variation in these networks. Immu...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2015.00222
更新日期:2015-06-19 00:00:00
abstract::In this study, we used pan RNA-seq analysis to reveal the ubiquitous existence of both 5' and 3' end small RNAs (5' and 3' sRNAs). 5' and 3' sRNAs alone can be used to annotate nuclear non-coding and mitochondrial genes at 1-bp resolution and identify new steady RNAs, which are usually transcribed from functional gene...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00105
更新日期:2019-02-14 00:00:00
abstract::Rheumatoid arthritis (RA) is a systemic autoimmune disease that affects about 1% of the world's population. The etiology of RA remains unknown. It is considered to occur in the presence of genetic and environmental factors. An increasing body of evidence pinpoints that epigenetic modifications play an important role i...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00570
更新日期:2019-06-14 00:00:00
abstract::The number of vertebrae, especially thoracic vertebrae, is an important economic trait that may influence carcass length and meat production in animals. However, the genetic basis of vertebrae number in sheep is still poorly understood. To detect the candidate genes, 400 increased number of thoracic vertebrae (T14L6) ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00674
更新日期:2019-07-18 00:00:00
abstract::Fragile-X syndrome is one of the most common forms of inherited mental retardation and autistic behaviors. The reduction/absence of the functional FMRP protein, coded by the X-linked Fmr1 gene in humans, is responsible for the syndrome. Patients exhibit a variety of symptoms predominantly linked to the function of FMR...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00010
更新日期:2019-02-13 00:00:00
abstract::The genetic diversity of the sheep breeds in the Arab countries might be considered to be a mirror of the ecology of the region. In this study, the genetic structure and diversity of sheep breeds from Saudi Arabia (Harri, Najdi, Naemi, Arb, and Rufidi) and Awassi sheep from Jordan as an out-group were investigated usi...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00408
更新日期:2018-09-25 00:00:00
abstract::Drought alone or in combination with other stresses forms the major crop production constraint worldwide. Sorghum, one of the most important cereal crops is affected by drought alone or in combination with co-occurring stresses; notwithstanding, sorghum has evolved adaptive responses to combined stresses. Furthermore,...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00557
更新日期:2018-11-20 00:00:00
abstract::Tolerance to infections is defined as the ability of a host to limit the impact of a given pathogen burden on host performance. Uncoupling resistance and tolerance is a challenge, and there is a need to be able to separate them using specific trait recording or statistical methods. We present three statistical methods...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00262
更新日期:2012-12-14 00:00:00
abstract::In 2017 the Swiss federal government established the Swiss Personalized Health Network (SPHN), a nationally coordinated data infrastructure for genetic research. The SPHN advisory group on Ethical, Legal, and Social Implications (ELSI) was tasked with the creation of a recommendation to ensure ethically responsible re...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.585820
更新日期:2020-12-11 00:00:00
abstract::In Colchester, Britain's oldest recorded town, during the Roman period there were areas which were clearly used solely as cemeteries. One of the most significant is at Butt Road, which includes a late Roman probable Christian cemetery with an associated building, apparently a church, that overlies and developed from a...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2017.00182
更新日期:2017-12-05 00:00:00
abstract::The microbiome is known to have a profound effect on the development, physiology and health of its host. Whether and how it also contributes to evolutionary diversification of the host is, however, unclear. Here we hypothesize that disruption of the microbiome by new stressful environments interferes with host-microbe...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2014.00168
更新日期:2014-06-20 00:00:00
abstract::We evaluated differences in gene expression in pigs from the Porcine Reproductive and Respiratory Syndrome (PRRS) Host Genetics Consortium initiative showing a range of responses to PRRS virus infection. Pigs were allocated into four phenotypic groups according to their serum viral level and weight gain. RNA obtained ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00321
更新日期:2013-01-16 00:00:00