Project description:This SuperSeries is composed of the following subset Series: GSE14758: Expression data from mediastinal lymph nodes of piglets experimentally infected with porcine circovirus type 2 (PCV2) GSE14790: Expression data from blood samples of piglets experimentally infected with porcine circovirus type 2 (PCV2) Refer to individual Series
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.
Project description:To understand the host transcriptional response to S. enterica serovar Choleraesuis (S. Choleraesuis), the first generation Affymetrix porcine GeneChip® was used to identify differentially expressed genes in the mesenteric lymph nodes responding to infection at acute (8 hours (h), 24h, 48h post-inoculation (pi)) and chronic stages (21 days (d) pi); The objectives of this study were to identify and examine the stereotypical gene expression response within the host mesenteric lymph nodes to S. Choleraesuis infection, and to characterize the global host responses by revealing the specific features of the hostâs innate immunity. Experiment Overall Design: Fifteen piglets from Salmonella spp.-free sows were weaned at 10 days (d) of age, shipped to the National Animal Disease Center, Ames, IA and raised in isolation facilities. To confirm that all piglets were free of Salmonella spp. prior to challenge, bacteriological cultures were performed on rectal swabs twice. Seven week old pigs were randomly divided into 2 groups, 3 non-infected pigs and 12 infected pigs. Three non-infected control pigs were necropsied 3 days prior to experimental infection. On day 0, pigs in the infected groups were intranasally challenged with 1 billion CFU of Salmonella enterica serotype Choleraesuis x3246. Three infected pigs were necropsied at 8 hours post-inoculation (hpi), 24 hpi, 48 hpi and 21 day post-inoculation (dpi). Tissue samples from the mesenteric lymph nodes (MLN) were collected and immediately frozen in liquid nitrogen for RNA isolation.
Project description:We used next generation RNAsequencing to identify how developmental exposure to TCDD alters gene expression in CD4+ T cells. Specifically, mice were developmentally exposed to vehicle or TCDD. At adulthood, CD4+ T cells were purified from peripheral lymph nodes of naive animals or the mediastinal lymph nodes of influenza A virus (IAV) infected mice (9 days post infection). RNA was isolated from these cells, and RNA-seq was performed. Gene expression analysis revealed developmental activation of the aryl hydrocarbon receptor with TCDD changes expression of genes that are involved in important CD4+ T cell functions.
Project description:We used Whole Genome Bisulfite Sequencing (WGBS) to compare DNA methylation patterns across the genome of CD4+ T cells. Specifically, mice were developmentally exposed to vehicle or TCDD. At adulthood, CD4+ T cells were purified from peripheral lymph nodes of naive animals or the mediastinal lymph nodes of influenza A virus (IAV) infected mice (9 days post infection). DNA was isolated from these cells, and WGBS was performed. Differential DNA methylation analyses revealed that both developmental exposure and IAV infection influence the pattern of DNA methylation in CD4+ T cells.
Project description:MicroRNAs expression profile was acquired in 99 frozen tissues corresponding to 14 Burkitt's lymphoma, 17 diffuse large B-cell lymphoma, 29 follicular lymphoma, 19 mantle cell lymphoma, 8 primary mediastinal B-cell lymphoma and 12 lymph nodes. Additionally, we performed microRNA expression profile of 14 Burkitts' lymphoma cell lines, 2 mantle cell lymphoma cell lines, 5 acute lymphoblastic leukemia cell preparations, 5 samples of mononucleosis cells, 4 Epstein Barr virus infected lymphoblastoid cell lines (EBV), 27 purified samples of B cells at different stage of development (13 GC-CD23-/CD39-, 11 GC-CD5- and 3 GC-CD5+), 4 peripheral blood CD19+ B cells, 4 purified samples of T cells (2 CD4+ and 2 CD8+) and 2 samples of bone marrow CD34+ cells. The data were used to discriminate among diverse pathological and nonpathological samples and to identify microRNAs expression differences between pathological samples and their nonpathological counterparts.
Project description:We were interested in investigating the heterogeneity of CD4+ Th2 cells during infection response. In order to do so we injected Nippostrongylus brasiliensis (Nb) in recipient mice as this is known to elicit a Type 2 response. Mice were subcutaneously injected with Nb larvae and single CD4+ cells were isolated from mediastinal lymph nodes, mesenteric lymph nodes, and lungs 5 days after infection.
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.
