Ontology highlight
ABSTRACT:
PROVIDER: PRJNA558049 | ENA |
REPOSITORIES: ENA
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Project description:The pathogen and host factors that contribute to the establishment of foot-and-mouth disease virus (FMDV) persistence are currently not understood. Using primary bovine soft palate multilayers in combination with RNA sequencing, we analyzed the transcriptional responses during acute and persistent FMDV infection.
2019-01-18 | E-MTAB-7605 | biostudies-arrayexpress
Project description:Data from the IAH/VLA diagnostic pathogen/virus detection microarray. The array platform for this data is GEO accession GPL5725 (provisional), and consists of 5824 oligos representing over 100 viral families, species and subtypes. The data set itself consists of 12 arrays, 4 hybridised with RNA from cell cultured foot-and-mouth disease virus (FMDV) type O, 3 hybridised with RNA from FMDV type A, 1 hybridised with RNA from a sheep infected with FMDV type O, and 4 hybridised with cell-cultured Avian Infectious Bronchitis virus (IBV). Keywords: Virus Detection Microarray
2007-08-14 | GSE8746 | GEO
Project description:: Foot-and-mouth disease (FMD) is the most devastating disease of cloven-hoofed livestock, with a crippling economic burden in endemic areas and immense costs associated with outbreaks in free countries. Foot-and-mouth disease virus (FMDV), a picornavirus, will spread rapidly in naïve populations, reaching morbidity rates of up to 100% in cattle. Even after recovery, over 50% of cattle remain subclinically infected and infectious virus can be recovered from the nasopharynx. The pathogen and host factors that contribute to FMDV persistence are currently not understood. Using for the first time primary bovine soft palate multilayers in combination with proteogenomics, we analyzed the transcriptional responses during acute and persistent FMDV infection. During the acute phase viral RNA and protein was detectable in large quantities and in response hundreds of interferon-stimulated genes (ISG) were overexpressed, mediating antiviral activity and apoptosis. Although the number of pro-apoptotic ISGs and the extent of their regulation decreased during persistence, some ISGs with antiviral activity were still highly expressed at that stage. This indicates a long-lasting but ultimately ineffective stimulation of ISGs during FMDV persistence. Furthermore, downregulation of relevant genes suggests an interference with the extracellular matrix that may contribute to the skewed virus-host equilibrium in soft palate epithelial cells.
2019-01-17 | PXD012242 | Pride
Project description:The some biomarkers can be found by pairwise comparison. They can distinguish between extremely severe Hand,foot and mouth disease and mild Hand,foot and mouth disease,moreover,they can applied to diagnose extremely severe Hand,foot and mouth disease
2013-11-27 | GSE52780 | GEO
Project description:The some biomarkers can be found by pairwise comparison. They can distinguish between extremely severe Hand,foot and mouth disease and mild Hand,foot and mouth disease,moreover,they can applied to diagnose extremely severe Hand,foot and mouth disease mild Hand,foot and mouth disease vs.control; extremely severe Hand,foot and mouth disease vs.control; extremely severe Hand,foot and mouth disease vs.mild Hand,foot and mouth disease,verification by qRT-PCR
2013-11-27 | E-GEOD-52780 | biostudies-arrayexpress
Project description:Immunomodulatory mechanisms associated with clearance versus persistence of foot-and-mouth disease virus (FMDV) in micro-dissected compartments of the bovine nasopharynx were investigated using qRT-PCR and whole transcriptome microarray. Analysis of tissue samples obtained by laser capture microdissection (LCM) during transitional and persistent phases of infection demonstrated significant differences in transcriptome profiles of animals that cleared infection versus those that became persistently infected carriers. The combined output of the analyses suggested that clearance of FMDV from the nasopharyngeal mucosa is associated with an activated cellular immune response. This was supported by induction of Th1-associated mediators and upregulation of multiple targets associated with activation of T cell-mediated cytotoxicity in tissues from animals that cleared infection. Contrastingly, the pattern of gene regulation in FMDV carriers during transitional and persistent phases of infection suggested inhibition of T cell activation and promotion of Th2 polarization. Regulation of genes associated with apoptosis or cellular proliferation suggested inhibition of apoptotic pathways and promotion of cellular proliferation associated with FMDV persistence while the opposite patterns were found in animals that cleared infection. The findings presented herein emphasize the critical importance of Th1-mediated cellular immunity for clearance of persistent FMDV infection. Additionally, the strong antibody-mediated immune response that is induced during acute infection may impair efficient clearance of intra-cellular virus, thereby promoting FMDV persistence. Thus, a critical balance between Th1 and Th2 -mediated immunity is essential for successful clearance of FMDV infection and should be considered for development of next-generation vaccines and antiviral products.
2017-12-19 | GSE104058 | GEO
Project description:Foot-and-mouth disease virus overview
| PRJNA69635 | ENA
Project description:In order to investigate the mechanisms of persistent foot-and-mouth disease virus (FMDV) infection in cattle, transcriptome alterations associated with the FMDV carrier state were characterized using a bovine whole-transcriptome microarray. Eighteen cattle (8 vaccinated with a recombinant FMDV A vaccine, 10 non-vaccinated) were challenged with FMDV A24 Cruzeiro, and the gene expression profiles of nasopharyngeal tissues collected between 21 and 35 days after challenge were compared between 11 persistently infected carriers and 7 non-carriers. Carriers and non-carriers were further compared to 2 naïve animals that had been neither vaccinated nor challenged. At a controlled false-discovery rate of 10% and a minimum difference in expression of 50%, 648 genes were differentially expressed between FMDV carriers and non-carriers, and most (467) had higher expression in carriers. Among these, genes associated with cellular proliferation and the immune response – such as chemokines, cytokines and genes regulating T and B cells – were significantly overrepresented. Differential gene expression was significantly correlated between non-vaccinated and vaccinated animals (biological correlation +0.97), indicating a similar transcriptome profile across these groups. Genes related to prostaglandin E2 production and type 2 immune polarization, as well as to the induction of regulatory T cells and T-cell exhaustion were overexpressed in carriers. In contrast, tissues from non-carrier animals expressed higher levels of complement regulators and pro-apoptotic genes that could promote virus clearance. Based on these findings, we propose that FMDV persistence in nasopharyngeal tissues of cattle is maintained by an impairment of apoptosis and the local suppression of cell-mediated antiviral immunity by inducible regulatory T cells.
2016-09-20 | GSE83514 | GEO
Project description:Cellular response to Foot-and-mouth disease virus (FMDV) infection in the BHK-21 transcriptome
| PRJNA510805 | ENA