GEO DataSets

Analysis of C.elegans at 3 points during aging: late larval L4 stage, days 6 and 15 of adulthood. C. elegans exhibits increased susceptibility to bacterial infection with age. Results provide insight into molecular mechanisms underlying the decline in immune function with aging (immunosenescence).

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array, transformed count, 3 age, 2 development stage sets

Platform:

GPL200

Series:

GSE21784

9 Samples

Download data: CEL

(Submitter supplied) Aging has been shown to be under genetic control in C. elegans. We performed Affymetrix micorarray-based transcriptional profililng of wild type C. elegans strain Bristol N2 during aging to detect temporal changes in gene expression.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Dataset:

GDS3943

Platform:

GPL200

9 Samples

Download data: CEL

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing; Genome binding/occupancy profiling by high throughput sequencing

Platforms:

GPL19757 GPL13657

31 Samples

Download data: TDF, WIG

(Submitter supplied) ChIP-seq of ATF-7::GFP from Wild Type or pmk-1 mutant animals exposed to either non-pathogenic E. coli OP50 or pathogenic P. aeruginosa PA14

Organism:

Caenorhabditis elegans

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13657

14 Samples

Download data: NARROWPEAK, TDF, WIG

(Submitter supplied) RNA-seq of Wild Type (N2), pmk-1 or atf-7 mutant animals exposed to either non-pathogenic E. coli OP50 or pathogenic P. aeruginosa PA14

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19757

17 Samples

Download data: TXT

(Submitter supplied) Analysis of genes differentially expressed between daf-2(e1368) and daf-2(e1368);pmk-1(km25) and between daf-2(e1368) and daf-2(e1368);daf-16(mgDf47). These studies identified genes upregulated by wild-type PMK-1 and wild-type DAF-16. Keywords: genetic modification

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Dataset:

GDS3253

Platform:

GPL200

9 Samples

Download data: CEL

(Submitter supplied) Analysis of differential gene expression in C. elegans adults exposed to three different bacteria: E. coli strain OP50, wild-type P. aeruginosa PA14 and gacA mutant PA14. Samples were analyzed at 4 hours and 8 hours after exposure to the different bacteria. These studies identified C. elegans genes induced by pathogen infection. Keywords: Time course, response to pathogen infection

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Dataset:

GDS3252

Platform:

GPL200

18 Samples

Download data: CEL

Analysis of daf-2(e1368) loss-of-function mutant and daf-2(e1368);pmk-1(km25) and daf-2(e1368);daf-16(mgDf47) double mutants. PMK-1 and DAF-16 confer enhanced pathogen resistance on daf-2 mutants relative to wild-type. Results suggest DAF-16 and PMK-1 upregulate distinct genes to promote immunity.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array, count, 3 genotype/variation sets

Platform:

GPL200

Series:

GSE5801

9 Samples

Download data: CEL

Analysis of strain fer-15(b26);fem-1(hc17) young adults exposed for up to 8 hrs to pathogenic Pseudomonas aeruginosa strain PA14, less pathogenic PA14 mutant gacA, and E. coli strain OP50 (normal food source). Results provide insight into the molecular basis of the response to a bacterial pathogen.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array, count, 3 infection, 2 time sets

Platform:

GPL200

Series:

GSE5793

18 Samples

Download data: CEL

(Submitter supplied) The response of the nematode C. elegans to Y. pestis infection was evaluated by gene expression profiling. A synchronized population of nematodes were exposed to Y. pestis KIM5 for 24h. Transcript levels from Y. pestis-treated animals were compared with animals maintained on relatively nonpathogenic E. coli OP50 for 24h.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL200

6 Samples

Download data: CEL, CHP

(Submitter supplied) Purpose: The goal of this study is to identify genes selectively associated with C. elegans CEBP-1. Methods: We generated transgenic animals expressing FLAG-tagged CEBP-1 in a cebp-1(tm2807) mutant background (cebp-1(0); juIs418 [Pcebp-1::FLAG::CEBP-1::cebp-1 3’UTR]) and then immunoprecipitated FLAG-CEBP-1-associated DNA fragments using anti-FLAG antibodies (M2 anti-FLAG magnetic beads; Sigma). We collected mixed stage worms grown at 20˚C on NGM plates followed by 2% formaldehyde and sonicated the samples as described (Mukhopadhyay et al., 2008). more...

Organism:

Caenorhabditis elegans

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13657

2 Samples

Download data: TXT

(Submitter supplied) Olfactory neurons allow animals to discriminate nutritious food sources from potential pathogens. From a forward genetic screen, we uncovered a surprising requirement for the olfactory neuron gene olrn-1 in the regulation of intestinal epithelial immunity in Caenorhabditis elegans. During nematode development, olrn-1 is required to program the expression of odorant receptors in the AWC olfactory neuron pair. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25145

7 Samples

Download data: XLSX

(Submitter supplied) Purpose: The objective of this study was to identify genes whose expression changes significantly between the L4 larval stage (Day 0 of adulthood) and the sixth day of adulthood (Day 6) in C. elegans. Methods: Wild type N2 animals were synchronized by sodium hypochlorite treatment and dropped as L1 larvae to NGM RNAi plates containing 2mM IPTG, 100 mg/mL carbenicillin and seeded with E. coli strain HT115 harboring the L4440 plasmid (vector only control for feeding-based RNAi experiments). more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

5 Samples

Download data: XLSX

(Submitter supplied) PMK-1 is involved in the heat stress response of C. elegans, translocates to the nucleus upon heat exposure and influences the expression of chaperone genes, proteasomal subunits and protein-biosynthesis related genes.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13657

2 Samples

Download data: TXT

(Submitter supplied) Many pathogens secrete toxins that target key host processes resulting in the activation of immune pathways. The secreted Pseudomonas aeruginosa toxin Exotoxin A (ToxA) disrupts intestinal protein synthesis which triggers the induction of a subset of P. aeruginosa-response genes in the nematode Caenorhabditis elegans. We found that losing one ToxA-induced C. elegans gene, the Tribbles pseudokinase ortholog nipi-3, results in hypersusceptibility to both P. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL200

9 Samples

Download data: CEL

(Submitter supplied) Transcriptional profiling was used to determine why DKF-2 (protein kinase D) deficiency and surfeit caused hypersensitivity and resistance, respectively, to a bacterial pathogen (P. aeruginosa 14). The studies show that DKF-2 contributes to C. elegans innate immunity by inducing expression of >75 genes that protect against pathogenic bacteria. Keywords: Induced imune response

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL5367

3 Samples

Download data: GPR

(Submitter supplied) The nematode Caenorhabditis elegans offers currently untapped potential for carrying out high-throughput, live-animal screens of low molecular weight compound libraries to identify molecules that target a variety of cellular processes. We previously used a bacterial infection assay in C. elegans to identify 119 compounds that affect host-microbe interactions among 37,214 tested. We subsequently found that one of these small molecules, RPW-24, protects C. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Dataset:

GDS4243

Platform:

GPL200

6 Samples

Download data: CEL

Analysis of bacterial infected C. elegans treated with 70 μM RPW-24 or DMSO. In a C.elegans-bacterial infection assay screening small molecules, RPW-24 was identified as a putative antimicrobial agent. Results provide insight into C. elegans conserved immune response to bacterial infection.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array, count, 2 agent sets

Platform:

GPL200

Series:

GSE37266

6 Samples

Download data: CEL

(Submitter supplied) Intracellular signaling regulators can be concentrated into membrane-free, higher-ordered protein assemblies to initiate protective responses during stress — a process known as phase transition. Here, we show that a phase transition of the Caenorhabditis elegans Toll/interleukin-1 receptor domain protein (TIR-1), an NAD+ glycohydrolase homologous to mammalian sterile alpha and TIR motif-containing 1 (SARM1), underlies p38 PMK-1 immune pathway activation in C. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25145

6 Samples

Download data: TSV

(Submitter supplied) Intracellular signaling regulators are concentrated into membrane-free, higher-ordered protein assemblies to initiate protective responses during stress — a process known as phase transition. Here, we show that a phase transition of the C. elegans Toll/interleukin-1 receptor domain protein (TIR-1), a homolog of the mammalian sterile alpha and TIR motif-containing 1 (SARM1), primes host immune defenses when dietary sterols are limited to handle subsequent bacterial infection. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25145

15 Samples

Download data: TSV