Project description:To achieve a greater insight into the host response to vaccination with C-strain, custom porcine microarrays were designed and utilised to analyse the differences in gene expression in host tonsil cells between pigs that were vaccinated with C-strain or given a mock vaccination. These pigs were then subsequently challenged with a virulent strain of CSFV within the window before an adaptive immune response can be mounted. Tonsil cells were harvested for transcriptomic analysis at various time points within the pre-adaptive protection window and analysed to identify subsets of genes that may be integral to this early protection phenotype.
Project description:Three groups of German Landrace piglets were vaccinated with tetanus toxoid. Transcriptome profiles of PBMC were analysed from blood samples taken 0, 2, 4, 8, 24 and 75 hours after a first vaccination and 0, 2, 4, 8, 24 and 75 hours as well as 14 d after a second vaccination on day 14. pair wise comparison of 0 hours to the respective time points after each vaccination
Project description:Three groups of German Landrace piglets were vaccinated with tetanus toxoid. Transcriptome profiles of PBMC were analysed from blood samples taken 0, 2, 4, 8, 24 and 75 hours after a first vaccination and 0, 2, 4, 8, 24 and 75 hours as well as 14 d after a second vaccination on day 14.
Project description:The effect of PDGF-DD on the gene expression of human tonsil ILC1 is unknown. We used microarray to determine the transcriptional differences between unstimulated and PDGF-DD-stimulated human tonsil ILC1.
Project description:In this study we attempt to elucidate some of the pathways involved in the immune response to vaccination and subsequent disease challenge using a transcriptomic approach. We exposed, via intra-peritoneal injection, three months old Asian seabass (Lates calcarifer) to a Streptococcus iniae vaccine. A control group was also set up where no vaccine was injected. Spleen and head kidney samples were collected at one and seven days post vaccination for transcriptomic analysis. At this point, there are four groups per organ: Day 1 vaccinated, Day 1 control, Day 7 vaccinated and Day 7 control. Subsequently, a pathogen challenge was carried out three weeks later and spleen and head kidneys were sampled at 25-29 hours post challenge for transcriptomic analysis. For control, mock challenged was carried out. At this point, there are four groups per organ: unvaccinated challenged, unvaccinated mock challenged, vaccinated challenged and vaccinated mock challenged. Total 57 samples. Spleen samples: At Day 1 and Day 7 post vaccination, 4 spleens were analyzed for each of the D1 control and D1 vaccinated groups and 3 spleens were analyzed for each of the D7 control and D7 vaccinated groups (total = 14 samples). At post pathogen challenge, 4 spleens were analyzed for each of these three groups - unvaccinated mock challenged, vaccinated challenged and vaccinated mock challenged and 3 spleens for the unvaccinated challenged group (total = 15 samples). Head Kidney samples: At Day 1 and Day 7 post vaccination, 3 head kidneys were analyzed for the control and vaccinated groups for both time points (total = 12 samples). At post pathogen challenge, 4 head kidneys were analyzed for each of the groups: unvaccinated challenged, unvaccinated mock challenged, vaccinated challenged and vaccinated mock challenged (total = 16 samples).
Project description:To determine the global gene transcriptional changes in vaccinated channel catfish anterior kidney after immersion challenge with a virulent Edwardsiella ictaluri compared to sham vaccinated catfish control. The attenuated Edwardsiella ictaluri used for vaccination was Aquavac-ESC which was commercially available, the virulent strain of Edwardsiella ictaluri is the AL93-58 strain. A six chip study using total RNA samples including 3 controls (no vaccination, no challenge) and 3 treated groups (challenge after vaccination). Each RNA sample used for microarray was pooled fish anterior kidney samples (5 fish anterior kidney samples were pooled as one). Each chip measrues the expression level of 65,182 genes. For each sequence, 3 probes were selected. Two copies were prepared on arrays.
Project description:To investigate miRNA expression in human tonsil squamous cell carcinoma (SCC) compared to normal tonsil tissue. Two colour LNA Exiqon array. MicroRNAs were labeled at 3'-end with a P-CU-C3-Cy3 RNA linker. A mixture of 371 synthetic DNA reference oligonucleotides containing complementary sequences to all LNA probes was randomly labeled using the ULYSIS labeling kit.
Project description:Although BCG has been used for almost 100 years to immunize against Mycobacterium tuberculosis, TB remains a global public health threat. Numerous clinical trials are underway studying novel vaccine candidates and strategies to improve or replace BCG, but vaccine development still lacks a well-defined set of immune correlates to predict vaccine-induced protection against tuberculosis. This study aimed to address this gap by examining transcriptional responses to BCG vaccination in C57BL/6 inbred mice, coupled with protection studies using Diversity Outbred mice. We evaluated relative gene expression in blood obtained from vaccinated mice, because blood is easily accessible and data can be translated to human studies. We first determined that the average peak time after vaccination is 14 days for gene expression of a small subset of immune-related genes in inbred mice. We then performed global transcriptomic analyses using whole blood samples obtained two weeks after mice were vaccinated with BCG. Using comparative bioinformatic analyses and qRT-PCR validation, we developed a working correlate panel of 18 genes that were highly correlated with administration of BCG but not heat-killed BCG. We then tested this gene panel using BCG-vaccinated Diversity Outbred mice and revealed associations between the expression of a subset of genes and disease outcomes after aerosol challenge with M. tuberculosis. These data therefore demonstrate that blood-based transcriptional immune correlates measured within a few weeks after vaccination can be derived to predict protection against M. tuberculosis, even in outbred populations.