Integrated mRNA and miRNA expression profiling in blood reveals candidate biomarkers associated with endurance exercise in horse
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ABSTRACT:
ORGANISM(S): Equus caballus
PROVIDER: GSE73104 | GEO | 2016/09/04
SECONDARY ACCESSION(S): PRJNA296031
REPOSITORIES: GEO
Similar Datasets
Project description:The adaptive response to extreme endurance exercise might involve transcriptional and translational regulation by microRNAs (miRNAs). Therefore, the objective of the present study was to perform an integrated analysis of the blood transcriptome and miRNome (using microarrays) in the horse before and after a 160 km endurance competition. A total of 2,453 differentially expressed genes and 167 differentially expressed microRNAs were identified when comparing pre- and post-ride samples. We used a hypergeometric test and its generalization to gain a better understanding of the biological functions regulated by the differentially expressed microRNA. In particular, 44 differentially expressed microRNAs putatively regulated a total of 351 depleted differentially expressed genes involved variously in glucose metabolism, fatty acid oxidation, mitochondrion biogenesis, and immune response pathways. In an independent validation set of animals, graphical Gaussian models confirmed that miR-21-5p, miR-181b-5p and miR-505-5p are candidate regulatory molecules for the adaptation to endurance exercise in the horse. To the best of our knowledge, the present study is the first to provide a comprehensive, integrated overview of the microRNA-mRNA co-regulation networks that may have a key role in controlling post-transcriptomic regulation during endurance exercise.
| S-EPMC4785432 | biostudies-literature
Project description:The adaptive response to extreme endurance exercise might involve transcriptional and translational regulation by microRNAs (miRNAs). Therefore, the aim of this study was to define an integrative analysis of blood transcriptome and miRNome in horses before and after a long endurance ride (160 km) using equine microarrays. A total of 2,453 genes and 162 miRNAs were found to be differentially expressed (DEG) between animals at rest and after the endurance ride. To gain understanding of the biological functions regulated by the differentially expressed miRNA, we used a hypergeometric test analysis. Notably, we detected 42 differentially expressed miRNAs that putatively regulate a total of 350 depleted DEGs, involved in glucose metabolism, fatty acid oxidation, mitochondrion biogenesis, and immune response pathways. Graphical Gaussian models in an independent validation set of animals confirmed that 4 miRNAs could be strong candidate regulatory molecules for endurance exercise adaptation. This study represents, to the best of our knowledge, the first integrated comprehensive overview of the miRNA-mRNA co-regulation networks that may play a central role in controlling post-transcriptomic regulations during endurance exercise in horses.
2016-09-04 | GSE73102 | GEO
Project description:The adaptive response to extreme endurance exercise might involve transcriptional and translational regulation by microRNAs (miRNAs). Therefore, the aim of this study was to define an integrative analysis of blood transcriptome and miRNome in horses before and after a long endurance ride (160 km) using equine microarrays. A total of 2,453 genes and 162 miRNAs were found to be differentially expressed (DEG) between animals at rest and after the endurance ride. To gain understanding of the biological functions regulated by the differentially expressed miRNA, we used a hypergeometric test analysis. Notably, we detected 42 differentially expressed miRNAs that putatively regulate a total of 350 depleted DEGs, involved in glucose metabolism, fatty acid oxidation, mitochondrion biogenesis, and immune response pathways. Graphical Gaussian models in an independent validation set of animals confirmed that 4 miRNAs could be strong candidate regulatory molecules for endurance exercise adaptation. This study represents, to the best of our knowledge, the first integrated comprehensive overview of the miRNA-mRNA co-regulation networks that may play a central role in controlling post-transcriptomic regulations during endurance exercise in horses.
2016-09-04 | GSE72973 | GEO
Project description:The adaptive response to extreme endurance exercise might involve transcriptional and translational regulation by microRNAs (miRNAs). Therefore, the aim of this study was to define an integrative analysis of blood transcriptome and miRNome in horses before and after a long endurance ride (160 km) using equine microarrays. A total of 2,453 genes and 162 miRNAs were found to be differentially expressed (DEG) between animals at rest and after the endurance ride. To gain understanding of the biological functions regulated by the differentially expressed miRNA, we used a hypergeometric test analysis. Notably, we detected 42 differentially expressed miRNAs that putatively regulate a total of 350 depleted DEGs, involved in glucose metabolism, fatty acid oxidation, mitochondrion biogenesis, and immune response pathways. Graphical Gaussian models in an independent validation set of animals confirmed that 4 miRNAs could be strong candidate regulatory molecules for endurance exercise adaptation. This study represents, to the best of our knowledge, the first integrated comprehensive overview of the miRNA-mRNA co-regulation networks that may play a central role in controlling post-transcriptomic regulations during endurance exercise in horses. Sixty-one Arabian or half-breed Arabian horses (20 females and 41 geldings) aged 10 ± 2 years (±SEM) were recruited on voluntary basis of the owner on three 160 km endurance rides.
2016-09-04 | E-GEOD-73102 | biostudies-arrayexpress
Project description:The adaptive response to extreme endurance exercise might involve transcriptional and translational regulation by microRNAs (miRNAs). Therefore, the aim of this study was to define an integrative analysis of blood transcriptome and miRNome in horses before and after a long endurance ride (160 km) using equine microarrays. A total of 2,453 genes and 162 miRNAs were found to be differentially expressed (DEG) between animals at rest and after the endurance ride. To gain understanding of the biological functions regulated by the differentially expressed miRNA, we used a hypergeometric test analysis. Notably, we detected 42 differentially expressed miRNAs that putatively regulate a total of 350 depleted DEGs, involved in glucose metabolism, fatty acid oxidation, mitochondrion biogenesis, and immune response pathways. Graphical Gaussian models in an independent validation set of animals confirmed that 4 miRNAs could be strong candidate regulatory molecules for endurance exercise adaptation. This study represents, to the best of our knowledge, the first integrated comprehensive overview of the miRNA-mRNA co-regulation networks that may play a central role in controlling post-transcriptomic regulations during endurance exercise in horses. Sixty-one Arabian or half-breed Arabian horses (20 females and 41 geldings) aged 10 ± 2 years (±SEM) were recruited on voluntary basis of the owner on three 160 km endurance rides.
2016-09-04 | E-GEOD-72973 | biostudies-arrayexpress
Project description:This SuperSeries is composed of the SubSeries listed below. Refer to individual Series
2016-09-04 | E-GEOD-73104 | biostudies-arrayexpress
Project description:Integrated mRNA and miRNA expression profiling in blood reveals candidate biomarkers associated with endurance exercise in horse
| PRJNA296031 | ENA
Project description:Endurance horses are able to run at more than 20 km/h for 160 km (in bouts of 30-40 km). This level of performance is based on intense aerobic metabolism, effective body heat dissipation and the ability to endure painful exercise. The known heritabilities of endurance performance and exercise-related physiological traits in Arabian horses suggest that adaptation to extreme endurance exercise is influenced by genetic factors. The objective of the present genome-wide association study (GWAS) was to identify single nucleotide polymorphisms (SNPs) related to endurance racing performance in 597 Arabian horses. The performance traits studied were the total race distance, average race speed and finishing status (qualified, eliminated or retired). We used three mixed models that included a fixed allele or genotype effect and a random, polygenic effect. Quantile-quantile plots were acceptable, and the regression coefficients for actual vs. expected log10p-values ranged from 0.865 to 1.055. The GWAS revealed five significant quantitative trait loci (QTL) corresponding to 6 SNPs on chromosomes 6, 1, 7, 16, and 29 (two SNPs) with corrected p-values from 1.7 × 10-6 to 1.8 × 10-5. Annotation of these 5 QTL revealed two genes: sortilin-related VPS10-domain-containing receptor 3 (SORCS3) on chromosome 1 is involved in protein trafficking, and solute carrier family 39 member 12 (SLC39A12) on chromosome 29 is active in zinc transport and cell homeostasis. These two coding genes could be involved in neuronal tissues (CNS). The other QTL on chromosomes 6, 7, and 16 may be involved in the regulation of the gene expression through non-coding RNAs, CpG islands and transcription factor binding sites. On chromosome 6, a new candidate equine long non-coding RNA (KCNQ1OT1 ortholog: opposite antisense transcript 1 of potassium voltage-gated channel subfamily Q member 1 gene) was predicted in silico and validated by RT-qPCR in primary cultures of equine myoblasts and fibroblasts. This lncRNA could be one element of the cardiac rhythm regulation. Our GWAS revealed that equine performance during endurance races is a complex polygenic trait, and is partially governed by at least 5 QTL: two coding genes involved in neuronal tissues and three other loci with many regulatory functions such as slowing down heart rate.
| S-EPMC5488500 | biostudies-literature
Project description:PurposeIntracerebral hemorrhage (ICH) is a serious public health hazard due to its high morbidity, disability, and mortality. Currently, the exact molecular mechanisms of ICH are unknown. We tried to identify the ICH-related candidate blood messenger RNA (mRNA) biomarkers by microarray analysis and weighted gene co-expression network analysis (WGCNA).Materials and methodsWe collected the blood samples from patients with ICH (n = 4) and from vascular risk factor (VRF) controls (n = 4) and analyzed the mRNA expression profiles by competitive endogenous RNA (ceRNA) microarray. Differentially expressed genes (DEGs) were identified and then a weighted gene co-expression network was constructed. Modules with clinical significance were distinguished. Then, we downloaded two Gene Expression Omnibus (GEO) datasets (GSE24265 and GSE125512). Candidate mRNAs were identified by taking the intersection of the DEGs in our microarray, the interesting genes in the key module, and the DEGs in GSE24265. Functional analysis involving Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) and construction of a protein-protein interaction (PPI) network were conducted.ResultsA total of 340 DEGs in our microarray were identified between the ICH group and the control group. Among the eight gene modules established by WGCNA, the yellow module containing 191 genes was the most strongly associated with ICH. Four candidate mRNAs (C3AR1, PAWR, ARNTL2, and LDLRAD4) were identified. In the early stage of ICH (within 24 h), C3AR1, PAWR, and ARNTL2 were highly expressed in the perihematomal tissue, but with low expressions in peripheral blood; in the late stage (72 h after the first blood draw), an obvious upward trend of C3AR1 and PAWR in peripheral blood was seen. Functional analysis showed that candidate mRNAs were concerned with multiple pathways, such as the Wnt signaling pathway and calcium signaling pathway. They might affect the process of ICH through neuroinflammation, cell apoptosis, and pyroptosis.ConclusionWe identified four candidate blood mRNAs (C3AR1, PAWR, ARNTL2, and LDLRAD4) related to ICH. They showed different expression patterns in peripheral blood and perihematomal tissues and changed with time. They might play important roles in ICH through neuroinflammation, cell apoptosis, and pyroptosis and might shed new light to novel biomarkers or therapeutic targets in ICH.
| S-EPMC8327089 | biostudies-literature
Project description:human blood mRNA and miRNA expression profile in imported falciparum malaria vs. health.
2019-08-31 | GSE119151 | GEO