Comprehensive analysis of lncRNAs and circRNAs reflects the functional specialization in oxidative and glycolytic skeletal muscles
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ABSTRACT:
PROVIDER: PRJNA488247 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR7762340_1.fastq.gz | Fastqsanger.gz | |||
| SRR7762340_2.fastq.gz | Fastqsanger.gz | |||
| SRR7762350_1.fastq.gz | Fastqsanger.gz | |||
| SRR7762350_2.fastq.gz | Fastqsanger.gz | |||
| SRR7762341_1.fastq.gz | Fastqsanger.gz |
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Project description:The biochemical and functional differences between oxidative and glycolytic muscles affect human muscle health and animal meat quality, but the epigenetic regulation with respect to lncRNAs and circRNAs remains largely unknown. Here, we employed porcine oxidative and glycolytic skeletal muscles, at growth curve inflection point, to survey variant global lncRNAs and circRNAs expression using RNA-seq. In total, we obtained 540 million raw reads approximately 81.02 Gb of high quality data. After a strict filtering process, 4,046 lncRNAs were identified, including 911 differentially expressed lncRNAs (p < 0.05). The cis-regulatory analysis identified target genes that were enriched for specific GO terms and pathways (p < 0.05), including oxidation-reduction process, glycolytic process, fatty acid metabolic, PPAR signaling pathway, which are closely related to the different phenotypes between oxidative and glycolytic muscles. Additional, we also identified 810 circRNAs, 137 of them were differentially expressed (p < 0.05). The host genes of circRNAs were related to motor activity, transition between fast and slow fiber and ATP metabolic process by function enrichment analysis. Interestingly, we found circRNA290-miR27b-Foxj3 and circRNA9210-miR-23a-MEF2C taken as two competing endogenous network, which was closely linked to muscle fiber-type switching. circRNA41-miR-217-SIRT1 network was connected with mitochondria biogenesis in muscle. Furthermore, we found 44.69%, 39.19% and 54.01% of differentially expressed mRNAs, lncRNAs and circRNAs were siginificantly enriched pig QTL regions (traits of meat quality and growing development), respectively. Togeter, this study reveals a mass of candidate lncRNAs and circRNAs involved in muscle physiological function, which improve understanding of muscle metabolism and development from epigenetic perspectives.
2018-08-30 | GSE119137 | GEO
Project description:The biochemical and functional differences between oxidative and glycolytic muscles could affect human muscle health and animal meat quality. However, present understanding of the epigenetic regulation with respect to lncRNAs and circRNAs is rudimentary. Here, porcine oxidative and glycolytic skeletal muscles, which were at the growth curve inflection point, were sampled to survey variant global expression of lncRNAs and circRNAs using RNA-seq. A total of 4046 lncRNAs were identified, including 911 differentially expressed lncRNAs (p < 0.05). The cis-regulatory analysis identified target genes that were enriched for specific GO terms and pathways (p < 0.05), including the oxidation-reduction process, glycolytic process, and fatty acid metabolic. All these were closely related to different phenotypes between oxidative and glycolytic muscles. Additionally, 810 circRNAs were identified, of which 137 were differentially expressed (p < 0.05). Interestingly, some circRNA-miRNA-mRNA networks were found, which were closely linked to muscle fiber-type switching and mitochondria biogenesis in muscles. Furthermore, 44.69%, 39.19%, and 54.01% of differentially expressed mRNAs, lncRNAs, and circRNAs respectively were significantly enriched in pig quantitative trait loci (QTL) regions for growth and meat quality traits. This study reveals a mass of candidate lncRNAs and circRNAs involved in muscle physiological functions, which may improve understanding of muscle metabolism and development from an epigenetic perspective.
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Project description:We provide a proteomic profile for fast/glycolytic biceps femoris (BF) and slow/oxidative soleus (SOL) muscles using tandem Mass Tags (TMT)-based proteomic analysis.
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Project description:The physiological, biochemical and functional difference of oxidative and glycolytic muscles play important roles in human metabolic health as well as in meat quality of animal. To explore this aspect, we firstly provided a genome-wide landscape of DNA methylomes and their relationship with mRNA and miRNA transcriptome for PMM (psoas major muscle; oxidative) and LDM (longissimus dorsi muscle; glycotic) in this study. We observed hypomethylation of subtelomeric regions and high mitochondria content contributed to fast replicative senescence in PMM. The DMRs in promoter (478) and gene bodies (5718) were main enriched in GTPase regulator activity and signaling cascade mediated pathway. Integration analysis revealed methylation status within gene promoter (or gene body) and miRNA promoter have significant negative correlation with mRNA and miRNA expression, respectively. Which included numerous genes were closely related to distinct phenotypic traits between LDM and PMM. For instance, the hypermethylation and down-expression of HK-2 and PFKFB4 decreased the glycolytic potential in PMM. In addition, we validated the promoter hypomethylation and up-expression of miR-378 results in silencing the target gene expression and inducing promoted capillaries biosynthesis in PMM. Together, these results provide a thorough understanding of muscle metabolism and development from an genomic and epigenetic perspective.
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Project description:The physiological, biochemical and functional difference of oxidative and glycolytic muscles play important roles in human metabolic health as well as in meat quality of animal. To explore this aspect, we firstly provided a genome-wide landscape of DNA methylomes and their relationship with mRNA and miRNA transcriptome for PMM (psoas major muscle; oxidative) and LDM (longissimus dorsi muscle; glycotic) in this study. We observed hypomethylation of subtelomeric regions and high mitochondria content contributed to fast replicative senescence in PMM. The DMRs in promoter (478) and gene bodies (5718) were main enriched in GTPase regulator activity and signaling cascade mediated pathway. Integration analysis revealed methylation status within gene promoter (or gene body) and miRNA promoter have significant negative correlation with mRNA and miRNA expression, respectively. Which included numerous genes were closely related to distinct phenotypic traits between LDM and PMM. For instance, the hypermethylation and down-expression of HK-2 and PFKFB4 decreased the glycolytic potential in PMM. In addition, we validated the promoter hypomethylation and up-expression of miR-378 results in silencing the target gene expression and inducing promoted capillaries biosynthesis in PMM. Together, these results provide a thorough understanding of muscle metabolism and development from an genomic and epigenetic perspective.
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Project description:The physiological, biochemical and functional difference of oxidative and glycolytic muscles play important roles in human metabolic health as well as in meat quality of animal. To explore this aspect, we firstly provided a genome-wide landscape of DNA methylomes and their relationship with mRNA and miRNA transcriptome for PMM (psoas major muscle; oxidative) and LDM (longissimus dorsi muscle; glycotic) in this study. We observed hypomethylation of subtelomeric regions and high mitochondria content contributed to fast replicative senescence in PMM. The DMRs in promoter (478) and gene bodies (5718) were main enriched in GTPase regulator activity and signaling cascade mediated pathway. Integration analysis revealed methylation status within gene promoter (or gene body) and miRNA promoter have significant negative correlation with mRNA and miRNA expression, respectively. Which included numerous genes were closely related to distinct phenotypic traits between LDM and PMM. For instance, the hypermethylation and down-expression of HK-2 and PFKFB4 decreased the glycolytic potential in PMM. In addition, we validated the promoter hypomethylation and up-expression of miR-378 results in silencing the target gene expression and inducing promoted capillaries biosynthesis in PMM. Together, these results provide a thorough understanding of muscle metabolism and development from an genomic and epigenetic perspective.
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