GEO DataSets

(Submitter supplied) We have discovered rifampicin as a glycation inhibitor, which increases life span in C elegans. In order to understand the mechanism of rifampicin action, microarray analysis was performed to study the changes in gene expression brought about by the drug.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL200

4 Samples

Download data: CEL

(Submitter supplied) We confirmed that the life span of C. elegans feeding hns mutant E. coli was increased. hns mutant E. coli was found to regulate lifespan of C. elegans through daf-16 activation in C. elegans. It is well known that daf-16 is the transcription factor of the insulin/IGF-1 signaling pathway and it is known to regulate downstream genes such as longevity, stress response, and dauer diapause regulation genes. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19757

8 Samples

Download data: TXT

(Submitter supplied) FoxO transcription factors promote longevity across taxa. How they do so is poorly understood. In the nematode Caenorhabditis elegans, the A- and F-isoforms of the FoxO transcription factor DAF-16 extend life span in the context of reduced DAF-2 insulin-like growth factor receptor (IGFR) signaling. To elucidate the mechanistic basis for DAF-16/FoxO-dependent life span extension, we performed an integrative analysis of isoform-specific daf-16/FoxO mutants. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13657

21 Samples

Download data: TXT

(Submitter supplied) One of the most important issues in the study of aging is to discover compounds with longevity-promoting activity and to unravel their underlying mechanisms. Queen honey bees are continuously fed royal jelly (RJ), and they live more than 10 times longer than hive workers, derived from the same diploid genome, which are fed it only for a short period of time during their larval stages. Therefore, RJ is likely to contain longevity-promoting agents for queens. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL11346

6 Samples

Download data: TXT

(Submitter supplied) The homeostatic maintenance of the genomic DNA is crucial for regulating aging processes. However, the role of RNA homeostasis in aging processes remains unknown. RNA helicases are a large family of enzymes that regulate the biogenesis and homeostasis of RNA. However, the functional significance of RNA helicases in aging has not been explored. Here, we report that a large fraction of RNA helicases regulate the lifespan ofCaenorhabditis elegans. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

8 Samples

Download data: TXT

(Submitter supplied) Cholesterol has attracted significant attention as a possible lifespan regulator. It has been reported that serum cholesterol levels have an impact on mortality due to age-related disorders such as cardiovascular disease. Diet is also known to be an important lifespan regulator. Dietary restriction retards the onset of age-related diseases and extends lifespan in various organisms. Although cholesterol and dietary restriction are known to be lifespan regulators, it remains to be established whether cholesterol is involved in dietary restriction-induced longevity. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL200

8 Samples

Download data: CEL

(Submitter supplied) In order to understand the complexity of gene regulation downstream of IIS, we did RNA-seq in mixed culture in wild-type, daf-2(e1370), daf-16(mgDf50);daf-2(e1370) and daf-2(e1370);daf-12(m20 and correlated it with ChIP-seq data

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13776

6 Samples

Download data: TXT

(Submitter supplied) In order to understand the complexity of gene regulation downstream of IIS, we used anti-DAF-16 antibody, we report the first genome-wide ChIP-sequencing study of endogenous DAF-16 recruitment in daf-2(e1370). We also report the average bin-wise normalized read count of ZFP-1 and DAF-16 on DAF-16 summits

Organism:

Caenorhabditis elegans

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13776

8 Samples

Download data: TXT

(Submitter supplied) Insulin/IGF-1 signaling (IIS) regulates various physiological aspects in many species. In C. elegans, mutations in daf-2/insulin/IGF-1 receptor dramatically increase lifespan and pathogen resistance, but generally impair motility, development, and reproduction. Whether these pleiotropic effects can be dissociated at a specific step in the IIS pathway remains unknown. Here we show that a single amino acid change in DAF-18, PTEN phosphatase, allows worms to maintain longevity and enhanced immunity in daf-2 mutants compared to wild-type, without defects in growth and motility. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

11 Samples

Download data: TXT

(Submitter supplied) Transcriptome-based drug screening is emerging as a powerful tool to identify geroprotective compounds to intervene in age-related disease. We hypothesized that, by mimicking the transcriptional signature of the highly conserved longevity intervention of FOXO3 (daf-16 in worms) overexpression, we could identify and repurpose compounds with similar downstream effects to increase longevity. Our in silico screen, utilizing the LINCS transcriptome database of genetic and compound interventions, identified several FDA-approved compounds that activate FOXO downstream targets in mammalian cells. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22765

8 Samples

Download data: CSV

(Submitter supplied) In this study we have investigated the effect of loss of math-33 activity on DAF-16-mediated target gene regulation in C. elegans under conditions of reduced Insulin/IGF-1 signaling (IIS). Using whole nematode RNA sequencing experiments we found that the daf-2(e1370)-mediated induction and repression of DAF-16 target genes was decreased in daf-2(e1370); math-33(tm3561) mutant animals. Our data suggest that the downregulation of endogenous DAF-16 isoforms in the absence of a functional MATH-33 severely affects the global expression of DAF-16 targets when IIS activity is reduced. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

10 Samples

Download data: XLS

(Submitter supplied) Heat shock factor 1 (HSF-1) and forkhead box O (FOXO) are key transcription factors that protect cells from various stresses. InCaenorhabditis elegans, HSF-1 and FOXO together promote a long life span when insulin/IGF-1 signaling (IIS) is reduced. However, it remains poorly understood how HSF-1 and FOXO cooperate to confer IIS-mediated longevity. Here, we show that prefoldin 6 (PFD-6), a component of the molecular chaperone prefoldin-like complex, relays longevity response from HSF-1 to FOXO under reduced IIS. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

12 Samples

Download data: TXT

(Submitter supplied) Aging is characterized by the loss of homeostasis and the general decline of physiological functions, accompanied by various degenerative diseases and higher rates of mortality. Anti-aging targeted small molecule screens have been carried outperformed many times, however, few have focused on endogenous metabolic intermediates—metabolites. Here, using C. elegans lifespan assays, we conducted a worm metabolite screen and identified an conserved metabolite through eEukaryotes-conserved metabolite, myo-inositol (MI), to extend lifespan, increase mobility and reduce fat content. more...

Organism:

Caenorhabditis elegans; Mus musculus

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL13112 GPL13657

14 Samples

Download data: TXT

(Submitter supplied) The roles and regulatory mechanisms of transcriptome changes during aging are unclear. It has been proposed that the transcriptome suffers decay during aging owing to age-associated down-regulation of transcription factors. In this study, we characterized the role of a transcription factor DAF-16, which is a highly conserved lifespan regulator, in the normal aging process of Caenorhabditis elegans. We found that DAF-16 translocates into the nucleus in aged wild-type worms and activates the expression of hundreds of genes in response to age-associated cellular stress. Most of the age-dependent DAF-16 targets are different from the canonical DAF-16 targets downstream of insulin signaling. This and other evidence suggest that activation of DAF-16 during aging is distinct from activation of DAF-16 due to reduced signaling from DAF-2. Further analysis showed that it is due in part to a loss of proteostasis during aging, at least in part. We also found that without daf-16, dramatic gene expression changes occur as early as on adult day 2, indicating that DAF-16 acts to stabilize the transcriptome during normal aging. Our results thus reveal that normal aging is not simply a process in which the gene expression program descends into chaos due to loss of regulatory activities; rather, there is active transcriptional regulation during aging.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL25147

42 Samples

Download data: TXT

(Submitter supplied) We have identified a role of the C. elegans miR-83 in regulating lifespan. mir-83 mutants exhibit an extended lifespan, and its overexpression is sufficient to decrease the prolonged lifespan of the mutants. We observed an upregulation in the expression of sets of miR-83 targets in young mir-83 mutant adults. However, in older mir-83 mutant adults, a different set of genes are upregulated. In vivo assays show that miR-83 regulates expression of a number of targets, including din-1, spp-9 and col-178. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL18245

8 Samples

Download data: XLSX

(Submitter supplied) Temperature, as a universal enviromental factor, has prolonged effect on physiological and pathological functions of different species. In order to expolore the temperol effect of temperature on C.elegans longevity, we used microarray to check the whole-genome expression profiling of L4 larvae and Day3-old adults of C.elegans maintaining at different temperature

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL19291

24 Samples

Download data: CEL

(Submitter supplied) mRNA expression profiling of genes regulated by dietary restriction and SEK-1.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13657

12 Samples

Download data: CSV

(Submitter supplied) To identify genes that selectively regulate hypoxic sensitivity, we compared the whole-organismal transcriptomes of three daf-2 reduction-of-function alleles, all of which are hypoxia resistant, thermotolerant, and long lived but differ in their rank of severities for these phenotypes. The transcript levels of 172 genes were increased in the most hypoxia resistant daf-2 allele, e1370, relative to the other alleles whereas transcripts from only 10 genes were decreased in abundance.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by array

Platform:

GPL9458

18 Samples

Download data: TXT

(Submitter supplied) The germ lineage is considered to be immortal. In the quest to extend lifespan, a possible strategy is to drive germline traits in somatic cells, to try to confer some of the germ lineage’s immortality on the somatic body. Notably, a study in C. elegans suggested that expression of germline genes in the somatic cells of long-lived daf-2 mutants confers some of daf-2’s longevity. Specifically, mRNAs encoding components of C. more...

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL13657

6 Samples

Download data: TXT

(Submitter supplied) Purpose: We found that mutations in microtubule regulating factors lead to altered lifespan. In order to understand the mechnaisms, we carried out RNA-seq analyses to identify genes with differential expression in microtubule regulator mutants.

Organism:

Caenorhabditis elegans

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24892

15 Samples

Download data: TXT