Abstract:
:Tumor-infiltrating T-lymphocytes are defined as T-lymphocytes that infiltrated into tumor tissues; however, their composition, clinical significance, and underlying mechanism in hepatocellular carcinoma (HCC) and adjacent non-tumor tissues are still not completely understood. Herein, we collected marker genes of T cell subpopulations from a previous study and estimated their relative infiltrating levels in HCC and adjacent non-tumor tissues. Specifically, the infiltrating levels of all the T cells were significantly reduced in HCC as compared with non-tumor tissues. Unsupervised clustering of the HCC samples by the T cell infiltrating levels revealed that the HCC samples could be clearly classified into two groups. The driver genes, including PTK2B, ATM, PIK3C2B, and KIT, and several CNAs were observed to be associated with reduced T cell infiltrating levels. Particularly, deletion of TP53 more frequently occurred in low T cell infiltration HCC samples and resulted in its downregulation and cell cycle progression, indicating that cell cycle progression was closely associated with reduced T cell infiltration. In contrast, for the samples with high infiltration T cells, its immune evasion might be regulated by the immune checkpoint regulators, such as PD-1/PD-L1 and CTLA4. Moreover, Olaparib, one of the PARP inhibitors, and immune checkpoint inhibitors might be therapeutic candidates for the samples from the two T cell infiltrating clusters. Clinically, the tumor-infiltrating levels of cytotoxic CD4 cell, Mucosal associated invariant T (MAIT) cell, and exhausted CD8+ T cell might be used as predictors for vascular invasion, recurrence, and overall survival. Collectively, we systematically evaluated the clinical significance and potential molecular mechanisms of tumor-infiltrating T cell subpopulations in hepatocellular carcinoma, which might broaden our insights into the immunological features of HCC and provide potential immunotherapeutic targets.
journal_name
Front Genetjournal_title
Frontiers in geneticsauthors
Li J,Zhou J,Kai S,Wang C,Wang D,Jiang Jdoi
10.3389/fgene.2020.586415subject
Has Abstractpub_date
2020-09-30 00:00:00pages
586415issn
1664-8021journal_volume
11pub_type
杂志文章abstract::This article reviews research results and ideas presented at a special symposium at the International Association of Gerontology and Geriatrics (IAGG) Congress held in July 2017 in San Francisco. Five researchers presented their results related to infection and Alzheimer's disease (AD). Prof. Itzhaki presented her wor...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2018.00362
更新日期:2018-09-10 00:00:00
abstract::The megadiversity of the neotropical ichthyofauna has been associated to recent diversification processes, reflecting in subtle or lacking morphological differentiation between species, challenging the classical taxonomic identification. Leporinus friderici occurs in several river basins of South America, and its nomi...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00047
更新日期:2018-02-15 00:00:00
abstract::In recent years, there has been an explosive increase in the amount of bioinformatics data produced, but data are not information. The purpose of bioinformatics research is to obtain information with biological significance from large amounts of data. Multiple sequence alignment is widely used in sequence homology det...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00105
更新日期:2020-02-27 00:00:00
abstract::Diabetes mellitus represents a group of complex metabolic diseases that result in impaired glucose homeostasis, which includes destruction of β-cells or the failure of these insulin-secreting cells to compensate for increased metabolic demand. Despite a strong interest in characterizing the transcriptome of the differ...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2014.00200
更新日期:2014-07-01 00:00:00
abstract::Nanopore sequencing from Oxford Nanopore Technologies (ONT) and Pacific BioSciences (PacBio) single-molecule real-time (SMRT) long-read isoform sequencing (Iso-Seq) are revolutionizing the way transcriptomes are analyzed. These methods offer many advantages over most widely used high-throughput short-read RNA sequenci...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00253
更新日期:2019-03-21 00:00:00
abstract::Members of the Cryptococcus complex, includes Cryptococcus neoformans (most common fungal infection of the brain) and Cryptococcus gattii (high-impact emerging pathogen worldwide). Currently, the fungal multilocus sequence typing database (Fungal MLST Database) constitutes a valuable data repository of the genes used ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00148
更新日期:2018-04-24 00:00:00
abstract::The goal of this work was to determine the effect of nonablative syngeneic transplantation of young bone marrow (BM) to laboratory animals (mice) of advanced age upon maximum duration of their lifespan. To do this, transplantation of 100 million nucleated cells from BM of young syngeneic donors to an old nonablated an...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00310
更新日期:2019-04-12 00:00:00
abstract::Recently, cancer has been characterized as a heterogeneous disease composed of many different subtypes. Early diagnosis of cancer subtypes is an important study of cancer research, which can be of tremendous help to patients after treatment. In this paper, we first extract a novel dataset, which contains gene expressi...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00979
更新日期:2020-09-10 00:00:00
abstract::Indy encodes the fly homolog of a mammalian transporter of di and tricarboxylate components of the Krebs cycle. Reduced expression of fly Indy or two of the C. elegans Indy homologs leads to an increase in life span. Fly and worm tissues that play key roles in intermediary metabolism are also the places where Indy gen...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00013
更新日期:2012-02-17 00:00:00
abstract::Autism spectrum disorder (ASD) is mainly reflected in the communication and language barriers, difficulties in social communication, and it is a kind of neurological developmental disorder. Most researches have used the machine learning method to classify patients and normal controls, among which support vector machin...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00018
更新日期:2018-02-06 00:00:00
abstract::At least six different proteins of the spliceosome, including PRPF3, PRPF4, PRPF6, PRPF8, PRPF31, and SNRNP200, are mutated in autosomal dominant retinitis pigmentosa (adRP). These proteins have recently been shown to localize to the base of the connecting cilium of the retinal photoreceptor cells, elucidating this fo...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00248
更新日期:2019-03-22 00:00:00
abstract::Ethylmalonic encephalopathy (EE) is a very rare autosomal recessive metabolic disorder that primarily affects children. Less than one hundred EE patients have been diagnosed worldwide. The clinical manifestations include chronic diarrhea, petechiae, orthostatic acrocyanosis, psychomotor delay and regression, seizures,...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00341
更新日期:2020-04-17 00:00:00
abstract::Circadian rhythms produce a biological measure of the time of day. In plants, circadian regulation forms an essential adaptation to the fluctuating environment. Most of our knowledge of the molecular aspects of circadian regulation in plants is derived from laboratory experiments that are performed under controlled co...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.01239
更新日期:2019-11-29 00:00:00
abstract::Cytotoxicity assays of immortalized lymphoblastoid cell lines (LCLs) represent a promising new in vitro approach in pharmacogenomics research. However, previous studies employing LCLs in gene mapping have used simple association methods, which may not adequately capture the true differences in non-linear response prof...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2011.00086
更新日期:2011-12-14 00:00:00
abstract::Homozygous and compound heterozygous mutations in GNB5 gene have been associated with a wide spectrum of clinical presentations, ranging from neurodevelopmental issues with or without cardiac arrhythmia (LADCI) to severe developmental delay with epileptic encephalopathy, retinal dystrophy, and heart rhythm abnormaliti...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00399
更新日期:2020-05-13 00:00:00
abstract::Extracting inherent valuable knowledge from omics big data remains as a daunting problem in bioinformatics and computational biology. Deep learning, as an emerging branch from machine learning, has exhibited unprecedented performance in quite a few applications from academia and industry. We highlight the difference a...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00214
更新日期:2019-03-26 00:00:00
abstract::Encephalomyopathic mitochondrial DNA (mtDNA) depletion syndrome 13 (MTDPS13) is a rare genetic disorder caused by defects in F-box leucine-rich repeat protein 4 (FBXL4). Although FBXL4 is essential for the bioenergetic homeostasis of the cell, the precise role of the protein remains unknown. In this study, we report t...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01300
更新日期:2020-01-08 00:00:00
abstract::Alzheimer's disease (AD) is a neurodegenerative and progressive disease, which often causes irreversible damages to the cerebrum. The pathogenesis of AD is far from being fully understood, while there are some popular hypotheses. So far, the diagnosis of AD relies only on clinical screening in the form of imaging tech...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00157
更新日期:2019-03-12 00:00:00
abstract::Livestock conservation practice is changing rapidly in light of policy developments, climate change and diversifying market demands. The last decade has seen a step change in technology and analytical approaches available to define, manage and conserve Farm Animal Genomic Resources (FAnGR). However, these rapid change...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2015.00314
更新日期:2015-10-21 00:00:00
abstract::Challenges in diagnosing primary immunodeficiency are numerous and diverse, with current whole-exome and whole-genome sequencing approaches only able to reach a molecular diagnosis in 25-60% of cases. We assess these problems and discuss how RNA-focused analysis has expanded and improved in recent years and may now be...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.01204
更新日期:2019-12-11 00:00:00
abstract::It is broadly expected that next generation sequencing will ultimately generate a complete genome as is the latest goat reference genome (ARS1), which is considered to be one of the most continuous assemblies in livestock. However, the rich diversity of worldwide goat breeds indicates that a genome from one individual...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.01169
更新日期:2019-11-15 00:00:00
abstract::A variety of statistical methods, such as admixture models, have been used to estimate genomic breed composition (GBC). These methods, however, tend to produce non-zero components to reference breeds that shared some genomic similarity with a test animal. These non-essential GBC components, in turn, offset the estimat...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00576
更新日期:2020-06-11 00:00:00
abstract::Communication disorders have complex genetic origins, with constellations of relevant gene markers that vary across individuals. Some genetic variants are present in healthy individuals as well as those affected by developmental disorders. Growing evidence suggests that some variants may increase susceptibility to the...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2015.00272
更新日期:2015-08-24 00:00:00
abstract::Reliable phenotypes are paramount for meaningful quantification of genetic variation and for estimating individual breeding values on which genetic selection is based. In this paper, we assert that genetic improvement of host tolerance to disease, although desirable, may be first of all handicapped by the ability to o...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00265
更新日期:2012-12-14 00:00:00
abstract::Background: Sturgeons (Chondrostei: Acipenseridae) are a group of "living fossil" fishes at a basal position among Actinopteri. They have raised great public interest due to their special evolutionary position, species conservation challenges, as well as their highly-prized eggs (caviar). The sterlet, Acipenser ruthen...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00776
更新日期:2019-09-05 00:00:00
abstract::Fragile X-associated tremor/ataxia syndrome (FXTAS) is a neurodegenerative disorder caused by a CGG-repeat expansion in the 5' UTR of the FMR1 gene on the X-chromosome. Both elevated levels of the expanded FMR1 mRNA and aberrant expression of a polyglycine protein (FMRpolyG) from the CGG-repeat region are hypothesized...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00249
更新日期:2019-03-28 00:00:00
abstract::Reliability of genomic selection (GS) models was tested in an admixed population of Atlantic salmon, originating from crossing of several wild subpopulations. The models included ordinary genomic BLUP models (GBLUP), using genome-wide SNP markers of varying densities (1-220 k), a genomic identity-by-descent model (IBD...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2014.00402
更新日期:2014-11-21 00:00:00
abstract::In spite of the significant advancements in the treatment modalities, 30% of advanced stage ovarian cancer (OC) patients do not respond to the standard chemotherapeutic regimen and most of the responders finally relapse over time due to the escalation of multidrug resistance (MDR) Phenomenon. Our present study evaluat...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00516
更新日期:2020-05-26 00:00:00
abstract::[This corrects the article DOI: 10.3389/fgene.2018.00657.]. ...
journal_title:Frontiers in genetics
pub_type: 杂志文章,已发布勘误
doi:10.3389/fgene.2019.00085
更新日期:2019-02-18 00:00:00
abstract::Empirical evidence is limited on whether allopolyploid species combine or merge parental adaptations to broaden habitats. The allopolyploid Arabidopsis kamchatica is a hybrid of the two diploid parents Arabidopsis halleri and Arabidopsis lyrata. A. halleri is a facultative heavy metal hyperaccumulator, and may be foun...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.565854
更新日期:2020-09-30 00:00:00