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Body size regulation and TGF-beta Sma/Mab pathway: sma L4 vs N2 L4

ABSTRACT: To find genes downstream of the TGF-beta Sma/Mab pathway associated with body size regulation in C. elegans.

ORGANISM(S): Caenorhabditis elegans

PROVIDER: GSE23448 | GEO | 2010/09/01

SECONDARY ACCESSION(S): PRJNA133339

REPOSITORIES: GEO

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Body size regulation and TGF-beta Sma/Mab pathway: sma L4 vs N2 L4

Project description:To find genes downstream of the TGF-beta Sma/Mab pathway associated with body size regulation in C. elegans. Three replicates comparing RNA from sma-2(e502) L4 whole animal with RNA from wild-type L4 whole animal, in which one is dye flipped. Plus one array comparing RNA from sma-4(e729) L4 whole animal with RNA from wild-type L4 whole animal.

2010-09-01 | E-GEOD-23448 | biostudies-arrayexpress

TGF-beta Sma/Mab signaling regulates a set of genes in oocytes associated with reproductive aging and another set in L4 associated with body size growth

Project description:Reproductive cessation is perhaps the earliest aging phenotypes humans experience. Similarly, C. elegans' reproduction ceases in mid-adulthood. Although somatic aging has been studied in both worms and humans, mechanisms regulating reproductive aging are not yet understood. Here we show that TGF-beta Sma/Mab activity regulates reproductive aging transcriptionally separable from its regulation of body size growth. This SuperSeries is composed of the following subset Series: GSE23446: Reproductive aging: sma-2;fem-1 day 8 oocyte vs fem-1 day 8 oocyte GSE23447: Reproductive aging: fem-1 day 3 oocyte vs fem-1 day 8 oocyte GSE23448: Body size regulation and TGF-beta Sma/Mab pathway: sma L4 vs N2 L4 Refer to individual Series

2010-09-01 | E-GEOD-23509 | biostudies-arrayexpress

TGF-beta Sma/Mab signaling regulates a set of genes in oocytes associated with reproductive aging and another set in L4 associated with body size growth

2010-09-01 | GSE23509 | GEO

Reproductive aging: sma-2;fem-1 day 8 oocyte vs fem-1 day 8 oocyte

Project description:To find genes downstream of the TGF-beta Sma/Mab pathway in C. elegans oocytes associated with reproductive aging.

2010-09-01 | GSE23446 | GEO

Reproductive aging: sma-2;fem-1 day 8 oocyte vs fem-1 day 8 oocyte

Project description:To find genes downstream of the TGF-beta Sma/Mab pathway in C. elegans oocytes associated with reproductive aging. Eight replicates comparing RNA from oocyte samples collected from day 8 sma-2(e502);fem-1(hc17) animals with RNA from oocyte samples collected from day 8 fem-1(hc17) animals. Five out of eight are dye-flipped.

2010-09-01 | E-GEOD-23446 | biostudies-arrayexpress

TGF-beta Sma/Mab signaling mutations uncouple reproductive aging from somatic aging.

Project description: Not available

| S-EPMC2791159 | biostudies-literature

Caenorhabditis elegans

Project description:Body size regulation and TGF-beta Sma/Mab pathway: sma L4 vs N2 L4

| PRJNA133339 | ENA

Gene expression profile of sma-3 mutant Caenorhabditis elegans

Project description:N2 (wildtype) control animals vs. sma-3 mutants vs. sma-6 mutants; 5 replicates each.

2022-02-18 | GSE151035 | GEO

Gene expression profiling in SMA I and III patients

Project description:Proximal spinal muscular atrophy (SMA) is a neurodegenerative disorder associated with mutations of the survival motor neuron gene SMN and characterized by progressive paralysis caused by degeneration of α–motor neurons of the spinal cord. To better understand the effects of SMN gene defect in SMA skeletal muscle tissues we performed a transcriptional analysis of muscle specimens of patient affected by the two extreme forms of SMA: the most severe type I and the mild type III. Patients of both groups had a variable SMN2 copy number that did not correlate with phenotype severity. The two forms of SMA resulted with a distinct expression profile: in SMA III patients the reduced number of modified genes suggests a proximity to normal condition, whereas in SMA I patients there is highly deregulated picture of gene expression. Genes implicated in signal transduction were up regulated in SMA III condition whereas those typical of energy metabolism and muscle contraction were consistently down regulated in severe disease type. Microarray results were validated, and the expression pattern of gene networks involved in atrophy signaling were completed by RQ-PCR. The analysis shows that specific atrophy pathways are involved: IGF/PI3K/Akt and those regulating MNK1-2 (more precisely TNF-α/p38 MAPK and Ras/ERK pathways). The results suggest also a different picture of atrophy pathways in the two forms of SMA. In particular in SMA I muscles, p38 may be the protein synthesis regulator. Moreover SMA III profile appear to be the result of a more complex transcriptome given by the concurrent presence of atrophic and hyperthrophic fibers. This more favorable condition might be due to action of MTOR whose over expression in SMA III could lead to a compensative hypertrophy. Keywords: disease state analysis

2009-06-08 | GSE8359 | GEO

Akirin Is Required for Muscle Function and Acts Through the TGF-? Sma/Mab Signaling Pathway in Caenorhabditis elegans Development.

Project description: Not available

| S-EPMC6945016 | biostudies-literature