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Endogenous DAF-16 genome-wide recruitment under low Insulin signalling condition in Caenorhabditis elegans

ABSTRACT: 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(S): Caenorhabditis elegans

PROVIDER: GSE67975 | GEO | 2016/03/01

SECONDARY ACCESSION(S): PRJNA281412

REPOSITORIES: GEO

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Endogenous DAF-16 genome-wide recruitment under low Insulin signalling condition in Caenorhabditis elegans

Project description: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 RNA-seq profile of different mutants in mix stage

2016-03-01 | E-GEOD-67975 | biostudies-arrayexpress

Endogenous DAF-16 genome-wide recruitment under low Insulin signaling condition in Caenorhabditis elegans

Project description: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

2016-03-01 | GSE63865 | GEO

Endogenous DAF-16 genome-wide recruitment under low Insulin signaling condition in Caenorhabditis elegans

2016-03-01 | E-GEOD-63865 | biostudies-arrayexpress

RNA sequencing analysis of DAF-16 target gene expression when math-33 function is genetically inactivated

Project description: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. Therefore, MATH-33 is essential for DAF-16-mediated target gene activation and repression in the context of IIS. DAF-16 mediated target gene regulation was analyzed in daf-2(e1370) nematodes and compared to daf-2(e1370); math-33(tm3561) mutant animals. daf-16(mu86); daf-2(e1370); N2 (wild type) and math-33(tm3561) single mutant animals were used as controls.

2016-06-22 | E-GEOD-70117 | biostudies-arrayexpress

RNA sequencing analysis of DAF-16 target gene expression when math-33 function is genetically inactivated

2016-06-22 | GSE70117 | GEO

mRNA-seq analysis of Caenorhabditis elegans N2, daf-2(e1370), irld-39(duk1);irld-52(duk17), and daf-2(e1370); irld-39(duk1); irld-52(duk17) starved L1 larvae

Project description:Whole starved L1 larvae from four genotypes (N2, daf-2(e1370), irld-39(duk1);irld-52(duk17), and daf-2(e1370); irld-39(duk1); irld-52(duk17)) were collected after 12 hours of starvation

2023-01-06 | GSE174319 | GEO

Transcription profiling of C. elegans long luved daf-2 mutants for the insulin/IGF-1 receptor. daf-2(e1370) and daf-2(m577) alleles each examined as single and as double mutations with the daf-16(df50) reveals insights into longevity

Project description:Analysis of gene expression in long-lived daf-2 mutants for the insulin/IGF-1 receptor. daf-2(e1370) and daf-2(m577) alleles each examined as single and as double mutations with the daf-16(df50) allele. DAF-2 regulates DAF-16, a transcription factor. Results provide insight into longevity.

2007-07-05 | E-GEOD-1762 | biostudies-arrayexpress

RNA-seq profile of two daf-2 (e1370);daf-12(m20) samples

Project description:RNA-seq profile of two daf-2 (e1370);daf-12(m20) samples

2019-12-03 | GSE68669 | GEO

C. elegans microarrays: daf-2(-) vs. daf-2(-) xbp-1(-)

Project description:Transcriptional profiling of day 1 animals comparing untreated daf-2(-) animals and daf-2(-) xbp-1(-) animals. Goal was to identify genes whose expression in daf-2 mutants is dependent (directly or indirectly) on xbp-1. Two-condition experiment, daf-2(-) animals and daf-2(-) xbp-1(-) animals. 4 Biological replicates in daf-2(e1370) background: 4 sets of daf-2(e1370) animals and their matching daf-2(e1370) xbp-1(zc12) animals. 4 Biological replicates in daf-2(e1368) background: 4 sets of daf-2(e1368) animals and their matching daf-2(e1368) xbp-1(zc12) animals.

2010-02-02 | E-GEOD-20148 | biostudies-arrayexpress

RNA helicase HEL-1 promotes longevity by specifically activating DAF-16/FOXO transcription factor signaling in Caenorhabditis elegans

Project description: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. In particular, we show that a DEAD-box RNA helicase, helicase 1 (HEL-1), promotes longevity by specifically activating the DAF-16/forkhead box O (FOXO) transcription factor signaling pathway. We find that HEL-1 is required for the longevity conferred by reduced insulin/insulin-like growth factor 1 (IGF-1) signaling (IIS) and is sufficient for extending lifespan. We further show that the expression of HEL-1 in the intestine and neurons contributes to longevity. HEL-1 enhances the induction of a large fraction of DAF-16 target genes. Thus, the RNA helicase HEL-1 appears to promote longevity in response to decreased IIS as a transcription coregulator of DAF-16. Because HEL-1 and IIS are evolutionarily well conserved, a similar mechanism for longevity regulation via an RNA helicase-dependent regulation of FOXO signaling may operate in mammals, including humans.

2023-10-04 | GSE244493 | GEO

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