Differential expression of host cell genes and their implications in PCV2 infection
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA439681 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR6875243.fastq.gz | Fastqsanger.gz | |||
| SRR6875244.fastq.gz | Fastqsanger.gz | |||
| SRR6875245.fastq.gz | Fastqsanger.gz | |||
| SRR6875246.fastq.gz | Fastqsanger.gz | |||
| SRR6875247.fastq.gz | Fastqsanger.gz |
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2021-03-04 | GSE111411 | GEO
Project description:Purpose: Post-weaning multisystemic wasting syndrome (PMWS) is a disease associated with porcine circovirus type 2 (PCV2) infection. One main feature of PMWS is seriously decreased lymphocyte in lymphoid tissues. This research aims to investigate the molecular mechanism of evident lymphocyte depletion in spleen from Yorkshire x Landrace (YL) pigs after infection with PCV2. Methods: At the age of 6 weeks, 15 piglets of Laiwu (LW) and YL pigs were assigned randomly into two groups, respectively: 10 infected pigs and 5 uninfected pigs. Spleen tissues of each group were collected at 35 days post infection with PCV2. Three PCV2-infected YL pigs with apparently pathologic characteristics and mock-infected YL pigs were selected for RNA sequencing, respectively. The RNA extraction, library construction and RNA-Seq were performed on the Illumina HiSeq2500 at Beijing BioMarker Technologies (Beijing, China).Differential expression genes (DEGs) were filtrated from the result of transcriptome. The quantitative real-time PCR was performed to validate the expression patterns of candidate DEGs between LW and YL pigs. Results: The clean reads percolated from the raw reads were mapped to Sus scrofa genome (Sscrofa10.2) using Tophat2 software. The efficiency of alignment was about 76% between the six samples and reference genome, and approximate 50% clean reads were perfectly matched to pig genome. Two samples with high R-squared value (T1-T3: 0.98; T5-T6: 0.97) from PCV2 and mock-infected YL pigs, respectively, was performed differential expression analysis through DESeq after biologic repetition correlation detection. With the criterion of log FC (fold change) > 1.5 and of P value < 0.05, 90 significantly differentially expressed genes were identified between the two groups, of which 57 were up-regulated and 33 were down-regulated. Eleven candidate DEGs were confirmed by quantitative real-time PCR, which expression pattern were generally in accordance with the results of RNA-seq. Conclusions: Many DEGs participate in immune response and some of them are involved in cells proliferation or apoptosis, such as CD81, HGF, CXCL13, KLF11, PSMD4, CYCS and ACTC1. The expression changes of these DEGs may cause the lymphocyte depletion in spleen after challenge with PCV2.
2019-02-10 | GSE112152 | GEO
Project description:To further study of pcv2-related diseases, we have employed whole genome microarray expression profiling as a discovery platform to identify ileal differentially expressed genes of piglets after pcv2 infection. Infected and uninfected piglets were sampled and analyzed by whole genome microarray expression profiling. The result showed 43603 differencially expressed genes in ileum after PCV2 infection. Expression of 11 genes (IL-1α, IL-1β, IL-6, IFNε, C5, C1QA, CCL4, CCL5, CCL25, CXCL9, CD163) from this signature was quantified in the same RNA samples by real-time PCR, confirming low variability between samples.
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Project description:Porcine circovirus type 2 (PCV2) can cause severe disease in the affected pigs, resulting in massive economic loss for the swine industry. Transcriptomics and proteomics approaches have been widely employed to identify the underlying molecular mechanisms of PCV2 infection. Numerous differentially expressed mRNAs, miRNAs, and proteins, together with their associated signaling pathways, have been identified, paving the way to further validation of their biological functions. Long non-coding RNA (lncRNA) is an important regulator of multiple biological processes. However, rare information regarding its role in the PCV2 infection has been obtained. Hence, in our study, RNA-seq was performed by infecting PK-15 cells with PCV2. Analysis of the differentially expressed genes (DEGs) suggested that cytoskeleton, apoptosis, cell division, and protein phosphorylation were significantly disturbed. Then, using stringent parameters, six lncRNAs were identified. Additionally, the potential targets of the lncRNAs were predicted using both cis- and trans-prediction methods. Interestingly, we found that the HOXB (Homeobox B) gene cluster was probably the target of the lncRNA LOC106505099. Enrichment analysis of the target genes showed that numerous developmental processes were altered during PCV2 infection. Therefore, our study revealed that lncRNAs could affect porcine embryo development through the regulation of the HOXB genes.
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Project description:Based on the coinfection model of porcine circovirus type 2 (PCV2) and classical swine fever virus (CSFV), iTRAQ with LC-MS/MS was applied to map the cellular proteome profiles and explore cellular responses of cells coinfected with PCV2 and CSFV.
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Project description:Ten 4-week-old BALB/c mice were randomly divided into two groups, with five mice in each group. PCV2 infected mice were constructed by intraperitoneal injection of PCV2, while the control group was injected with an equal volume of PBS in the same manner. On the 28th day after infection, one PCV2 infected mouse and one control mouse were taken, and their spleens were removed for scRNA-seq.
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Project description:Postweaning multisystemic wasting syndrome in pigs has devastated the swine industry since the 1990s. Porcine circovirus type 2 (PCV2) is the primary cause of this disease. MicroRNAs (miRNAs) are small noncoding RNAs that play important roles in regulating gene expression, especially at the post-transcription level. The expression profiles of miRNAs have been reported in porcine reproductive and respiratory syndrome, porcine parvovirus, and other pig diseases; however, the miRNA expression profiles in pigs infected with PCV2 have not been reported so far. The Laiwu pig (a Chinese indigenous pig breed) has different meat quality, adipogenesis, and disease-resistance from western commercial pig breeds. In this study, four small RNA libraries were constructed from the lung tissue of uninfected and infected Laiwu and Yorkshire/Landrace crossbred (YL) pigs. High-throughput sequencing and bioinformatics were used to determine the abundance and differential expression of miRNAs in the four libraries
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Project description:This study aimed to characterize differences in gene expression in piglets inoculated with porcine circovirus type 2 (PCV2), the essential causative agent of postweaning multisystemic wasting syndrome (PMWS). Comparisons between control and PCV2-inoculated pigs were done at five different time points: 0, 7, 14, 21 and 29 days post-inoculation. Keywords: time course
2009-12-31 | GSE14790 | GEO
Project description:This study aimed to characterize differences in gene expression in piglets inoculated with porcine circovirus type 2 (PCV2), the essential causative agent of postweaning multisystemic wasting syndrome (PMWS). Comparisons between control and PCV2-inoculated pigs were done at five different time points: 0, 7, 14, 21 and 29 days post-inoculation. Keywords: time course Seven-day-old caesarean-derived, colostrum-deprived piglets were distributed into two groups: control (n=4) and inoculated with 105.2 TCID50 of the Burgos PCV2 isolate (n=4). Pigs were bled at 0, 7, 14, 21, and 29 days post-inoculation.
2009-12-31 | E-GEOD-14790 | biostudies-arrayexpress