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Expression analysis of channel catfish anterior kidney at 48h post immersion challenge of vaccinated fish (28 days post vaccination with attenuated Edwardsiella ictaluri) with virulent E. ictaluri

ABSTRACT: 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.

ORGANISM(S): Ictalurus punctatus

SUBMITTER: julia pridgeon

PROVIDER: E-GEOD-32588 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Expression analysis of channel catfish anterior kidney at 48h post immersion challenge of vaccinated fish (28 days post vaccination with attenuated Edwardsiella ictaluri) with virulent E. ictaluri

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.

2011-10-05 | GSE32588 | GEO

Expression analysis of channel catfish anterior kidney at 48h post immersion vaccination with attenuated Edwardsiella ictaluri

Project description:To determine the global gene transcriptional changes in channel catfish anterior kidney after immersion vaccination with attenuated Edwardsiella ictaluri compared to sham vaccinated catfsih control. The attenuated Edwardsiella ictaluri used for vaccination was Aquavac-ESC which was commercially available. A six chip study using total RNA samples including 3 control and 3 vaccinated samples. Each RNA sample used for microarray was poold 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.

2011-09-09 | E-GEOD-32046 | biostudies-arrayexpress

Expression analysis of channel catfish anterior kidney at 48h post immersion vaccination with attenuated Edwardsiella ictaluri

2011-09-10 | GSE32046 | GEO

Ictalurus punctatus

Project description:Expression analysis of channel catfish anterior kidney at 48h post immersion challenge of vaccinated fish (28 days post vaccination with attenuated Edwardsiella ictaluri) with virulent E. ictaluri

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Gene expression profiles of vaccinated fish using a long-term efficiency mixed vaccine against Edwardsiella tarda performed by a new designed oligo DNA microarray in Japanese flounder Paralichthys olivaceus

Project description:Gene expression profiles by microarray have contributed for a elucidation of an immune-response and a determination of efficiency in vaccination. Recent day, edwardsielosis have caused a fatal damage in the aquaculture of Japanese flounder, Paralichthys olivaceus. However the formalin killed-cell vaccines made from Edwardsiella tarda isolated same fish species were not efficient. Recent our study revealed the mixed FKC vaccine made from the two different type of E. tarda protected Japanese flounder against Edwardsiella tarda infection for long-term. In this study, we analyzed the immune-response of a vaccinated fish kidney using the mixed FKC vaccine against Edwardsiella tarda with an Agilent custom-oligo DNA microarray on 9,573 probes of Japanese flounder. Our study revealed that the mixed FKC vaccine confered a strong immune-response and keeped a efficient for long-term on Japanese flounder.

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Transcriptomic analysis reveals differential response in the teleost spleens and head kidneys towards vaccination and pathogen challenge

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).

2014-10-01 | E-GEOD-51839 | biostudies-arrayexpress

Ictalurus punctatus

Project description:Expression analysis of channel catfish anterior kidney at 48h post immersion vaccination with attenuated Edwardsiella ictaluri

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Expression analysis of Edwardsiella ictaluri 93-146 wild type and mutant strains during catfish fry encounter.

Project description:Edwardsiella ictaluri is the causitive agent of enteric septicemia of catfish, one of the most important diseases impacting US catfish industry. The overall objective of this study is to identify E. ictaluri genes required for host encounter. 4-plex NimbleGen array study using total RNA obtained from wild type and mutant Edwardsiella ictaluri encountered with or without catfish fry. Each treatment had four biological replica and each plex had two probe sets.

2013-12-15 | E-GEOD-46007 | biostudies-arrayexpress

Expression analysis of Edwardsiella ictaluri 93-146 wild type and mutant strains during catfish serum exposure.

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2013-12-15 | E-GEOD-46011 | biostudies-arrayexpress

Mycobacterium bovis-BCG vaccination induces a specific pulmonary transcriptome biosignature in mice

Project description:In the present study, we applied microarray technology to define a biosignature from the whole genome expression in lung and spleen samples after BCG vaccination and M. bovis infection of BALB/c mice. The aims were two-fold, namely to define biosignatures that could predict vaccine success before challenge, and biomarker patterns that correlated with anamnestic protective responses following exposure to virulent M. bovis. Further, Our aim was to define these markers to be detectable without in vitro antigenic challenge. After BCG vaccination, we defined a specific pulmonary gene expression signature related to the connective tissue development and function network that predicted vaccine success before M. bovis challenge. In addition, a Th17-related cytokine profile was found that correlated with vaccine-induced protective immunity following infection with virulent M. bovis in the lung as well as additional genes that were up-regulated in the spleens of vaccinated animals post-infection that was related to neutrophil biology and inflammation. This study has therefore prioritized both biomarkers predicting vaccination success before challenge and bio-signatures that are associated with protective immune responses that will be useful to evaluate future vaccine candidates. Two groups of 20 mice each were immunised by a single intradermal injection of 2 x 10 to 5 CFU of M. bovis BCG (Vaccinated), or Hanks buffered salt solution (HBSS) (Unvaccinated). Six weeks later 5 mice from each group were euthanized for immunological analyses and the remaining mice from each group were challenged with approx 600 CFU M. bovis via the intranasal route. At days 3 and 14 post challenge five mice per group were euthanized and spleens and lungs harvested.

2010-07-29 | E-GEOD-21149 | biostudies-arrayexpress

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