Abstract:
:Background: Porcine respiratory and reproductive syndrome virus (PRRSV) is a single-stranded RNA virus member that infects pigs and causes losses to the commercial industry reaching upward of a billion dollars annually in combined direct and indirect costs. The virus can be separated into etiologies that contain multiple heterologous low and highly pathogenic strains. Recently, the United States has begun to see an increase in heterologous type 2 PRRSV strains of higher virulence (HP-PRRSV). The high pathogenicity of these strains can drastically alter host immune responses and the ability of the animal to maintain homeostasis. Because the loss of host homeostasis can denote underlying changes in gene and regulatory element expression profiles, the study aimed to examine the effect PRRSV infections has on miRNA and tRNA expression and the roles they play in host tolerance or susceptibility. Results: Using transcriptomic analysis of whole blood taken from control and infected pigs at several time points (1, 3, 8 dpi), the analysis returned a total of 149 statistically significant (FDR ⫹ 0.15) miRNAs (n = 89) and tRNAs (n = 60) that were evaluated for possible pro- and anti-viral effects. The tRNA differential expression increased in both magnitude and count as dpi increased, with no statistically significant expression at 1 dpi, but increases at 3 and 8 dpi. The most abundant tRNA amino acid at 3 dpi was alanine, while glycine was the most abundant at 8 dpi. For the miRNAs, focus was put on upregulation that can inhibit gene expression. These results yielded candidates with potential anti- and pro-viral actions such as Ssc-miR-125b, which is predicted to limit PRRSV viral levels, and Ssc-miR-145-5p shown to cause alternative macrophage priming. The results also showed that both the tRNAs and miRNAs displayed expression patterns. Conclusions: The results indicated that the HP-PRRSV infection affects host homeostasis through changes in miRNA and tRNA expression and their subsequent gene interactions that target and influence the function of host immune, metabolic, and structural pathways.
journal_name
Front Genetjournal_title
Frontiers in geneticsauthors
Fleming DS,Miller LCdoi
10.3389/fgene.2019.00691subject
Has Abstractpub_date
2019-08-02 00:00:00pages
691issn
1664-8021journal_volume
10pub_type
杂志文章abstract::The global prevalence of metabolic disorders, such as obesity, diabetes and fatty liver disease, is dramatically increasing. Both genetic and environmental factors are well-known contributors to the development of these diseases and therefore, the study of epigenetics can provide additional mechanistic insight. Dietar...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2020.590369
更新日期:2020-10-15 00:00:00
abstract:Background:Recent evidence has indicated that long non-coding RNAs (lncRNAs) can function as competing endogenous RNAs (ceRNAs) to modulate mRNAs expression by sponging microRNAs (miRNAs). However, the specific mechanism and function of lncRNA-miRNA-mRNA regulatory network in non-small cell lung cancer (NSCLC) remains ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.511676
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pub_type: 杂志文章
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journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2014.00448
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abstract::von Hippel-Lindau (VHL) disease is a hereditary cancer syndrome with poor survival. The current recommendations have proposed uniform surveillance strategies for all patients, neglecting the obvious phenotypic varieties. In this study, we aim to confirm the phenotypic heterogeneity in VHL disease and the underlying me...
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journal_title:Frontiers in genetics
pub_type: 杂志文章
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更新日期:2019-03-15 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
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abstract::Normalization of cDNA is widely used to improve the coverage of rare transcripts in analysis of transcriptomes employing next-generation sequencing. Recently, long-read technology has been emerging as a powerful tool for sequencing and construction of transcriptomes, especially for complex genomes containing highly si...
journal_title:Frontiers in genetics
pub_type: 杂志文章
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abstract::Colitis-associated cancer (CAC) has been linked to microRNA (miRNA) aberrant expression elicited by inflammation. In this study, we used the AOM/DSS-induced CAC mice model to explore the ectopic expression of miRNAs in the precancerous stage of CAC. As a result, we found that miR-31-5p, miR-223-3p, and let-7f-5p were ...
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pub_type: 杂志文章
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pub_type: 杂志文章
doi:10.3389/fgene.2020.583932
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2012.00053
更新日期:2012-04-09 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2019.00322
更新日期:2019-04-09 00:00:00
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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
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00863
更新日期:2019-09-19 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.00557
更新日期:2020-06-05 00:00:00
abstract::Inference of copy number variation presents a technical challenge because variant callers typically require the copy number of a genome or genomic region to be known a priori. Here we present a method to infer copy number that uses variant call format (VCF) data as input and is implemented in the R package vcfR. This ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00123
更新日期:2018-04-13 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2015.00013
更新日期:2015-02-03 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00217
更新日期:2018-06-22 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00264
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2014.00233
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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::THE DIAGNOSIS OF A SUSPECTED TUMOR LESION FACES TWO BASIC PROBLEMS: detection and identification of the specific type of tumor. Radiological techniques are commonly used for the detection and localization of solid tumors. Prerequisite is a high intrinsic or enhanced contrast between normal and neoplastic tissue. Ident...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2013.00298
更新日期:2014-01-13 00:00:00
abstract::Human exposure to mercury is a serious problem of public health in Amazon. As in other vulnerable populations throughout the world, Amazonian riverine populations are chronically exposed to this metal and some symptoms of mercury intoxication were already detected in these populations. However, studies on the genetic ...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2018.00285
更新日期:2018-07-27 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2019.00234
更新日期:2019-04-09 00:00:00
abstract::The emerald ash borer (EAB), Agrilus planipennis, is a highly destructive quarantine pest. The olfactory and visual systems of A. planipennis play different but critical roles at newly emerged and sexually mature stages; however, the molecular basis underlying these differences remain unclear. Consequently, based on d...
journal_title:Frontiers in genetics
pub_type: 杂志文章
doi:10.3389/fgene.2020.604757
更新日期:2021-01-15 00:00:00
abstract::It is believed that recombination in meiosis serves to reshuffle genetic material from both parents to increase genetic variation in the progeny. At the same time, the number of crossovers is usually kept at a very low level. As a consequence, many organisms need to make the best possible use from the one or two cross...
journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2018.00609
更新日期:2018-12-12 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2017.00174
更新日期:2017-11-07 00:00:00
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journal_title:Frontiers in genetics
pub_type: 杂志文章,评审
doi:10.3389/fgene.2014.00175
更新日期:2014-06-11 00:00:00