Project description:To determine whether type O FMDV-infected macrophage can release a variety of cytokines and activate innate immune responses, we have taken systematic functional genomics studies using microarray technology on differences expression gene of FMDV-infected and FMDV-uninfected mouse monocyte macrophage (RAW264.7 cells). We examined the expression patterns of 39,430 mouse genes probes, using Agilent mouse gene expression microarray. The results showed that 2541 genes were differentially expressed after FMDV infection, with 1207 up-regulated and 1334 down-regulated. Based on our previous data, the differential regulation of genes most associate with innate immune response.
Project description:In FMDV persistent infection cell lines, we found that many FMDV-free cells (BHK_VEC) occupied. The BHK_VEC cells exhibited resisted to the parental FMDV, and could re-establish a persistent infection when infected with FMDV-OP, revealing a fact that host cells evolved during the persistent infection. To further explore the underlying molecular mechanism, transcriptomic analyses of BHK_VEC, BHK21 and BHK-Op cells were performed by using RNA-seq
Project description:Transcriptome analysis of total blood cells from sheep collected at 0, 4 and 24 hours after vaccination with inactivated FMDV vaccine, and adenovirus (human Ad5)-based vaccines encoding FMDV antigens, with and without Montanide ISA206 VG adjuvant.
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.
Project description:Comparison of the transcriptiomic profiles using DNA microarray analysis betwween the pharyneal (target of FMDV acute and persistent infection) and lung (target of FMDV acute infection) tissues of cattle
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.
Project description:Profiling of miRNA in serum of FMDV infected cattle, to understand disease pathogenesis and to identify FMD specific miRNA biomarkers to aid early pre-clinical diagnosis
Project description:We used RNA-sequencing on the Illumina platform to analyze transcriptome profiles of BHK-21 acutely infected with FMDV. In total, we obtained more than 342.8 million raw sequencing reads. And approximately 336.5 million clean reads (98.14%) were acquired by filtering out the adapters and trimming ambiguous reads. We found that cellular response of BHK-21 is related to certain types of alterations in the host cell transcriptome profiles at 24 h post infection.
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
