Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Gene Expression Profiling Following DNA Vaccination of Rainbow Trout against Infectious Hematopoietic Necrosis Virus

ABSTRACT: The Infectious Hematopoietic Necrosic Virus (IHNV) DNA vaccine is based on the viral glycoprotein gene (G gene) and induces a non-specific anti-viral immune response and long-term specific immunity against IHNV in salmonid fishes. This study characterized gene expression responses associated with the early anti-viral response. Homozygous rainbow trout were injected intra-muscularly (I.M.) with vector DNA or the IHNV DNA vaccine. Gene expression at the I.M. site was evaluated using a 16,000 feature salmon cDNA microarray. Eighty different transcripts were significantly modulated in the vector DNA group while 910 transcripts were modulated in the IHNV DNA vaccinated group relative to control group. Quantitative reverse transcriptase PCR was used to examine expression of selected genes at the I.M. site and in other secondary tissues. In the localized response (I.M. site), the magnitudes of gene expression changes were higher in the vaccinate group relative to the vector DNA group for the majority of genes analyzed. At secondary systemic sites (e.g. gill, kidney and spleen) evaluated with RT-PCR of specific genes, the main difference was the up-regulation of the type I IFN-related genes in only the IHNV DNA vaccinated group. Keywords: disease vaccine response Gene expression at the site of I.M injection was evaluated 7 days post-injection in clonal rainbow trout. Gene expression was compared across three treatments, with replicate clonal rainbow trout individuals (Hot Creek strain) within each treatment. Treatments included injection with 1X PBS (control group), plasmid vector only (without IHNV G gene; hereafter referred to as vector group), and the pIHNV vaccine (vaccine group). Three clonal individuals from the control, three individuals from the vector group, and four individuals from the vaccine group were labeled with Cy3 and used for individual hybridizations to ten slides, comparing hybridization of each individual to a major reference RNA pool. The major reference pool consisted of three unhandled clonal rainbow trout and constituted a pool of RNA from the anterior kidney, spleen, liver and muscle and was labelled with Cy5. Total RNA was extracted from samples, amplified, and hybridized to 16,000 feature Atlantic salmon cDNA arrays developed by the Genomic Research for Atlantic Salmon project. Differential expression was compared among control, vector, and vaccine groups.

ORGANISM(S): Oncorhynchus mykiss

SUBMITTER: Krista Nichols

PROVIDER: E-GEOD-3522 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Publications

Comprehensive gene expression profiling following DNA vaccination of rainbow trout against infectious hematopoietic necrosis virus.

Purcell Maureen K MK Nichols Krista M KM Winton James R JR Kurath Gael G Thorgaard Gary H GH Wheeler Paul P Hansen John D JD Herwig Russell P RP Park Linda K LK

Molecular immunology 20060119 13

The DNA vaccine based on the glycoprotein gene of Infectious hematopoietic necrosis virus induces a non-specific anti-viral immune response and long-term specific immunity against IHNV. This study characterized gene expression responses associated with the early anti-viral response. Homozygous rainbow trout were injected intra-muscularly (I.M.) with vector DNA or the IHNV DNA vaccine. Gene expression in muscle tissue (I.M. site) was evaluated using a 16,008 feature salmon cDNA microarray. Eighty ...[more]

PMID: 16426680

Similar Datasets

Project description:BACKGROUND & AIMS: Gastric cancer results from a combination of Helicobacter pylori (H pylori) infection, exposure to dietary carcinogens, and predisposing genetic make-up. Because the role of these factors in gastric carcinogenesis cannot be determined readily in human beings, the present study examined the role of an oral carcinogen and H pylori infection in rhesus monkeys. METHODS: Gastroscopies were performed in 23 monkeys assigned to 4 groups: controls; nitrosating carcinogen ethyl-nitro-nitrosoguanidine administration alone; and inoculation of a virulent H pylori strain alone (H), or in combination with ethyl-nitro-nitrosoguanidine (EH). Follow-up gastroscopies and biopsies were performed at 3-month intervals for 5 years for pathologic and molecular studies. RESULTS: Postinoculation, H and EH groups showed persistent infection and antral gastritis. Starting at 2 and 5 years, respectively, gastric intestinal metaplasia and intraepithelial neoplasia developed in 3 EH monkeys but in no other groups. Transcriptional analysis of biopsies at 5 years revealed group-specific expression profiles, with striking changes in EH monkeys, plus a neoplasia-specific expression profile characterized by changes in multiple cancer-associated genes. Importantly, this neoplastic profile was evident in nonneoplastic mucosa, suggesting that the identified genes may represent markers preceding cancer. CONCLUSIONS: Gastric intraglandular neoplasia is induced in primates when H pylori infection is associated with consumption of a carcinogen similar to the nitrosaminesfound in pickled vegetables, suggesting that H pylori and the carcinogen synergistically induce gastric neoplasia in primates. Monkey arrays used for analysis of the affect of Helicobacter pylori and diet on development of gastric cancer. Each RNA was hybridized against a common reference. Biopsy numbers represent the following in terms of descriptions used in publication of the paper... Each set of numbers/descriptions is organized in the following order: Biopsy#; Monkey#; Group Code on Fig 5 Biopsy #4674; AB24; E; E1 Biopsy #4684; 16G; E; E2 Biopsy #4716; 89G; H; H1 Biopsy #4724; 54H; H; H2 Biopsy #4720; 20G; H; H3 Biopsy #4710; 92F; C; C1 Biopsy #4714; 26G; C; C2 Biopsy #4712; 92G; C; C3 Biopsy #4726; 08G; H; H4 Biopsy #4722; 57G; H; H5 Biopsy #4718; 85G; H; H6 Biopsy #4694; 48H; HE NON; HE1 Biopsy #4686; 59H; HE NON; HE2 Biopsy #4690; 81G; HE NEO; HE3 Biopsy #4696; 36G; HE NEO; HE4 Biopsy #4692; 63G; HE NEO; HE5 Biopsy #4680; 76G; E; E3 Biopsy #4682; 52G; E; E4 Biopsy #4678; 15G; E; E5 Biopsy #4676; 93G; E; E6 Biopsy #4688; 47H; HE NON; HE6 A pathogenicity experiment design type is where an infective agent such as a bacterium, virus, protozoan, fungus etc. infects a host organism(s) and the infective agent is assayed. Infection: Rhesus monkeys were infected with H. pylori (+/-) Compound Based Treatment: Rhesus monkeys were treated with ENNG (N-ethyl-N-nitrosoguanidine) (+/-) pathogenicity_design

Project description:In some of the earliest uses of genome-wide gene-expression microarrays and array-based Comparative Genomic Hybridization (aCGH), a set of diploid yeasts that had undergone experimental evolution under aerobic glucose limitation was used to explore how gene expression and genome structure had responded to this selection pressure. To more deeply understand how adaptation to one environment might constrain or enhance performance in another we have now identified the adaptive mutations in this set of clones using whole-genome sequencing, and have assessed whether the evolved clones had become generalists or specialists by assaying their fitness under three contrasting growth environments: aerobic and anaerobic glucose limitation and aerobic acetate limitation. Additionally, evolved clones and their common ancestor were assayed for gene expression, biomass estimates and residual substrate levels under the alternative growth conditions. Relative fitnesses were evaluated by competing each clone against a common reference strain in each environment. Unexpectedly, we found that the evolved clones also outperformed their ancestor under strictly fermentative and strictly oxidative growth conditions. We conclude that yeasts evolving under aerobic glucose limitation become generalists for carbon limitation, as the mutations selected for in one environment are advantageous in others. High-throughput sequencing of the evolved clones uncovered mutations in genes involved in glucose sensing, signaling, and transport that in part explain these physiological phenotypes, with different sets of mutations found in independently-evolved clones. Earlier gene expression data from aerobic glucose-limited cultures had revealed a shift from fermentation towards respiration in all evolved clones explaining increased fitness in that condition. However, because the evolved clones also show higher fitness under strictly anaerobic conditions and under conditions requiring strictly respirative growth, this switch cannot be the sole source of adaptive benefit. Furthermore, because independently evolved clones are genetically distinct we conclude that there are multiple mutational paths leading to the generalist phenotype. Strain Name: Parental strain (CP1AB) or evolved clones (E1 - E5) Media: aerobic / anaerobic 36 hybridizations

Dataset Information

Gene Expression Profiling Following DNA Vaccination of Rainbow Trout against Infectious Hematopoietic Necrosis Virus

Publications

Comprehensive gene expression profiling following DNA vaccination of rainbow trout against infectious hematopoietic necrosis virus.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets