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An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

ABSTRACT: This study aims at identifying a dual transcriptomics and metabolomics blood signature following administration of CpG-ODN (cytosine-phosphate-guanine oligodeoxynucleotides), a reference immune-stimulatory molecule. A clinical study was conducted with chicks and transcriptomics and metabolomics analyses were performed on whole-blood and plasma samples respectively. Statistical analyses resulting in lists of differentially expressed genes and metabolites with different abundance were identified in chicks treated with CpG-ODN. The results showed that CpG-ODN activates the innate immune systems within hours following administration and its effect lasts over time, as metabolomic and transcriptomic profiles are still varying at 6 days after administration.

ORGANISM(S): Gallus gallus

PROVIDER: GSE138956 | GEO | 2019/10/17

REPOSITORIES: GEO

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An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

Project description:An integrated transcriptomics and metabolomics study of the immune response of newly hatched chicks to the CpG-ODN stimulation

| PRJNA577887 | ENA

Macrophages from newly hatched chicks [set2]

2014-07-31 | GSE59920 | GEO

IGROV1 gene expression analysis after in vivo locoregional treatment with CpG-ODN

Project description:Toll-like receptor 9 synthetic agonist oligodeoxynucleotides expressing CpG motifs are currently evaluated for their anti-tumor activity, mainly in association with DNA-damaging drugs. Microarray expression analyses of genes implicates in DNA repair on tumor cells from mice treated with CpG-OD, revealed a down-regulation in tumor cells. These findings provide the first time evidence that immune cells upon TLR9 engagement can sensitize cancer cells to DNA damaging chemotherapy. IGROV-1 human ovarian carcinoma cells were adapted to growth intraperitoneally (i.p.) and maintained by serial i.p. passages of ascitic cells into healthy mice as described. Mice were injected i.p. with 2.5 x 106 ascitic cells in 0.2 ml of saline and treated starting 10-11 days later, when mice showed evident and established ascites, with CpG-ODN [phosphorothioated ODN1826 (5’-TCCATGACGTTCCTGACGTT-3’), TriLink Biotechnologies (San Diego, CA, USA)]. delivered i.p. at a dose of 20 µg/mouse for 3 consecutive days or 1 time, control mice received saline (4 mice/group). 24 hours after the last treatment with saline or CpG-ODN, ascites-bearing mice were sacrificed by cervical dislocation. Tumor cells adhered to peritoneal wall were collected and extraction immediately frozen in liquid nitrogen until RNA extraction.

2011-04-01 | E-GEOD-23441 | biostudies-arrayexpress

Gene expression profile of IGROV1 cells after in vitro treatment with CpG-ODN

Project description:CpG-ODN is a potent immuno-stimulatory molecule. In order to exclude a direct effect of murine CpG-ODN on IGROV1 human ovarian cancer cell line a gene expression experiment was performed.

2011-04-01 | GSE23442 | GEO

Macrophages from newly hatched chicks [set2]

Project description:To identify markers associated with inherent cellular sex-identity, we analysed macrophages from newly-hatched chicks. We found that male and female macrophages respond differently to stimulation by bacterial lipopolysaccharide and that female macrophages constitutively express higher levels of interferon target genes than male macrophages. Macrophages were collected from leg-bones of chickens between 1 and 3 days after hatch. Three pools of macrophage cells were made for male and female cultures. Cells were cultured in either standard medium or in medium containing lipopolysaccharide (LPS) to activate the macrophages. Macrophages were harvested and RNA collected for microarray analysis.

2014-07-31 | E-GEOD-59920 | biostudies-arrayexpress

CpG Oligodeoxynucleotides treatment of Anopheles mosquitoes

Project description:In the present study, we have investigated the effect of CpG Oligodeoxynucleotides (CpG-ODN) on the outcome of Plasmodium infection of the mosquito vectors Anopheles stephensi and Anopheles gambiae and on the modulation of mosquito immunity to Plasmodium. Anopheles mosquitoes inoculated with CpG-ODN showed significant reduction of Plasmodium infection rate and intensity. Microarrays were used to profile transcription of fat-body from CpG-ODN-treated mosquitoes. Mosquitoes were dissected 18h after ODN inoculation (immediately before feeding). Batches of 20 to 30 fat bodies (abdomen without midgut, ovaries and malpighian tubule]) were dissected in cold DEPC-treated phosphate-buffered saline (PBS) and processed for RNA preparation. Mosquitoes treated with CpG-ODNs are less susceptible to Plasmodium infection. Transcription profile of fat body indicates that protection was associated with coagulation/wound healing, while melanization appears to be depressed.

2013-04-02 | GSE26941 | GEO

Transcription profiling of Bos taurus CD14+ purified bovine monoctye stimulation with CpG ODN 2007 vs. GpC ODN 2007, CpG 2007 vs. Control, GpC 2007 vs. Control and Media vs Control (

Project description:CD14+ purified bovine monoctye stimulation with CpG ODN 2007 vs. GpC ODN 2007, CpG 2007 vs. Control, GpC 2007 vs. Control and Media vs Control (Control is unstimluated CD14+ purified bovine monocytes at time zero). Before stimulation, the CD14+ purified bovine monocytes were rested for 20 h. Then the cells were stimulated for 4hrs.

2005-01-01 | E-FPMI-2 | biostudies-arrayexpress

Lung transcriptome profile in healthy and OVA-sensitized/challenged mice fed a diet supplemented with or without Cap or ODNcap

Project description:CpG-oligodeoxynucleotides (CpG-ODNs) constitute an attractive alternative for asthma treatment. We found that free feeding of an ODNcap (a CpG-ODN-embedded particle) -containing feed (ODNcap-F) prophylactically attenuates allergic airway inflammation, hyperresponsiveness, and goblet cell hyperplasia in an ovalbumin (OVA) -induced asthma model. To seek the suppressive mechanism of action of ODNcap-F in OVA-induced airway insults, we analyzed the lung transcriptome using DNA microarray analysis.

2021-09-29 | GSE180287 | GEO

Gene expression profile of IGROV1 cells after treatment of saline or CpG-ODN

Project description:This SuperSeries is composed of the following subset Series: GSE23440: Gene expression profiling of IGROV1 cells after in vitro treatment with ascitic fluid from human ovarian cancer bearing mice GSE23441: IGROV1 gene expression analysis after in vivo locoregional treatment with CpG-ODN GSE23442: Gene expression profile of IGROV1 cells after in vitro treatment with CpG-ODN Refer to individual Series

2011-04-01 | E-GEOD-23491 | biostudies-arrayexpress

Gene network landscape of murine splenocytes reveals integrin as the A151 ODN-responsive hub in immune transcriptome

Project description:PURPOSE: Homeostatic restoration of an inflammatory response requires quenching of the immune system after pathogen threats vanish. A continued assault orchestrated by host defense results in tissue destruction or autoimmunity. A151 is the epitome of synthetic oligodeoxynucleotides (ODNs) that curb immune response by a subset of white corpuscles through repetitive telomere derived TTAGGG sequences. Nevertheless, the genuine effect A151 has on immune cell transcriptome still remains unknown. METHODS: We leveraged an integrative approach in which weighted gene co-expression network analysis (WGCNA) and differential gene expression analysis of our in-house microarray data sets aided our understanding of how A151 ODN suppresses immune response in mouse splenocytes. We fed raw gene expression data from two different (scrambled ODN and A151 ODN) treatment groups with a varying number of replicate arrays (29 and 16, respectively) into WGCNA, limma, and GSEA separetely to understand different dimensions of the A151 ODN-driven immune modulation at the transcriptome level. RESULTS: Together with experimental and in silico validations, we demonstrated that A151 ODN acts on components of integrin complexes, namely Itgam and Itga6, to interfere with immune cell adhesion, and thereby, suppress the immune response in mouse. Furthermore, we revealed that cell adhesion by integrin complexes serves as a focal point for cellular response to A151 ODN treatment in immune cells. CONCLUSION: A refined set of co-hub genes led by Itgam and Itga6 plays a pivotal role in A151 ODN-driven suppression of immune response. Also, A151 ODN treatment appears to interfere with immune cell adhesion to quench immune response in mouse splenocytes. The outcome of this study sheds light on the molecular basis of immune suppression by a clinically useful DNA-based therapeutic agent and may open new revenues for A151 ODN research.

2021-10-01 | GSE184994 | GEO

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