Browse
Submit Data
Databases
API
Help

Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

64 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Beta Amyloid toxicity in a Caenorhabditis elegans model of Alzheimer's disease

ABSTRACT: Transgenic animals were engineered to express human amyloid peptide controlled by a muscle-specific, heat-inducible promoter. At low temperatures (16°C) Abeta expression is minimal, while at higher temperatures (20-25°C) Abeta accummulates in large quantities and causes paralysis. GFP- and GFP::degron (a toxic aggregating GFP mutant)-expressing animals were used as controls. Animals were grown at 16°C till early 3rd larval stage and then upshifted to 25°C. Animals were harvested at the time of upshift (T0), and every 4 hours later until 20 hours postupshift (T4-T20).

ORGANISM(S): Caenorhabditis elegans

SUBMITTER: Wail Hassan

PROVIDER: E-GEOD-65851 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

ACCESS DATA

Json Xml

Similar Datasets

Beta Amyloid toxicity in a Caenorhabditis elegans model of Alzheimer's disease

Project description:Transgenic animals were engineered to express human amyloid peptide controlled by a muscle-specific, heat-inducible promoter. At low temperatures (16°C) Abeta expression is minimal, while at higher temperatures (20-25°C) Abeta accummulates in large quantities and causes paralysis. GFP- and GFP::degron (a toxic aggregating GFP mutant)-expressing animals were used as controls.

2015-02-12 | GSE65851 | GEO

IL-17A and IL-6 -stimulated expression data from primary epithelial cell cultures derived from human trachea tissues

Project description:RNAs were isolated from primary cultures after 24 hour treatment with IL-17A or IL-6 (10 ng/ml) in primary human TBE cells. We used microarrays to analyze the global gene expression profiling of IL-17A or IL-6 regulated genes in TBE cells. TBE cells were grown and stimutaed with the cytokines indicated. Total RNA were then extracted for Affymetrix microarray studies.

2015-03-28 | E-GEOD-67361 | biostudies-arrayexpress

Microarray analysis of gene expression profiles in human neuroblastoma cells exposed to Amyloid beta-Zn and Amyloid beta-Cu complexes

Project description:Abnormal metal accumulation is associated with Alzheimer’s disease (AD) and has a relevant role in affecting amyloid beta-peptide (Abeta) aggregation and neurotoxicity.In the present study, employing a microarray analysis of 35,129 genes, we analyzed gene expression profile changes due to exposure to Abeta-Zn or Abeta-Cu complexes in neuronal-like cells (SH-SY5Y). Microarray data indicated that Abeta-Zn or Abeta-Cu complexes selectively alter expression of genes mainly related to cell death, inflammatory responses, and apoptosis.Taken together these findings indicate that Abeta-Zn or Abeta-Cu show some commonalities in affecting AD-related target functions. The overall modulatory activity on these genes supports the idea of a possible net result leading to mechanisms that counteract toxic effects of Abeta-Zn or Abeta-Cu.

2012-05-01 | GSE37661 | GEO

Transcription profiling of murine cerebellum to identify novel candidate genes for ethanol sensitivity QTLs.

Project description:Inbred Long-Sleep (ILS) and Inbred Short-Sleep (ISS) mice exhibit a large difference in a number of alcohol and drug related behaviors. This study examined the expression levels of transcripts in these strains in the cerebellum, which is a major target of ethanol's actions in the CNS, in order to find differentially expressed candidate genes for these phenotypes. Cerebellum was specifically chosen due to the fact that Purkinje cell sensitivity to ethanol in these strains is highly correlated to sleep time, the measure of ethanol sensitivity used with these strains. Naive mice were used because differences in sensitivity are observed upon initial exposure to ethanol. Experiment Overall Design: Expression was assayed using the Affymetrix Expression Set 430 A and B arrays. Four mice were included in the experiment, two ILS and two ISS.

2007-09-07 | E-GEOD-3071 | biostudies-arrayexpress

Amyloid-beta Citrullination in Alzheimer's Disease

Project description:Amyloid-beta peptides which aggregate and accumulate in Alzheimer’s disease (AD) brain are known to have sequential N-terminal truncations and multiple post-translational modifications (PTM) such as isomerization, pyroglutamate formation, phosphorylation, nitration and dityrosine cross-linking. Here we add to the list of PTM citrullination (deimination) of Arg5 residue in plaque-derived Abeta in sporadic AD brains, identified by tandem mass spectrometry. We quantitated the level of citrullination on multiple N-truncated Abeta isoforms present in plaque-associated fractions and found that almost 30 % of pyroGlu3-Abeta pool was citrullinated in plaques from AD temporal cortex. We also documented citrullinated Abeta peptides in the detergent insoluble fractions from AD frontal cortex with ~ 22 % citrullination in the pyroGlu3-Abeta pool. Citrullination of Abeta is a common PTM, closely associated with pyroglutamate-Abeta formation and Abeta accumulation in AD. This may have implications for Abeta toxicity, auto-antigenicity of Abeta, and may be relevant for the design of diagnostic assays and therapeutic targeting.

2021-11-24 | PXD025620 | Pride

Abeta levels in APP Tg mice with mixed genetic backgrounds

Project description:We combined a mouse model of Abeta accumulation and transcriptomics, and identified Klc1 as an Abeta accumulation modifier in vivo.

2014-01-15 | GSE40330 | GEO

Digital gene expression analysis reveals genes associated with hexythiazox resistance in citrus red mite, Panonychus citri

Project description:We compared a miticides resistant strain and a susceptible strain's gene expression profile to reveal genes associated with miticide resistance in Panonychus citri.

2013-06-11 | E-MTAB-1193 | biostudies-arrayexpress

Effect of Lithium on Abeta utilising microarray analyses

Project description:Our previous work in a Drosophila model of Alzheimer's disease (AD) has shown that we can intervene into the pathways to slow or prevent AD progression. Lithium was able to rescue toxicity in the Drosophila AD model which corresponded with a reduction in Abeta levels. Furthermore, we have demonstrated that Lithium affects Abeta protein translation. To this end, we were interested in studying the effect of Lithium on Abeta using microarray analyses, to determine if we could uncover any interesting downstream pathways. Flies were expressing a mutant version of Abeta, the Arctic mutation, which increases the aggregation or production of Abeta (UAS-ArcAb42/+;elavGS/+). We collected flies 2 days post eclosion that either had no Arctic Abeta protein, or expressed Arctic with or without Lithium treatment for 17 days post eclosion. Samples were homogenised using RLT buffer with betamercaptoethanol.

2017-01-26 | E-MTAB-4611 | biostudies-arrayexpress

DNA methylation profiling of healthy elderly individuals with different lifestyle habits

Project description:Illumina Infinium EPIC HumanMethylation BeadChip data from saliva DNA samples from a healthy elderly cohort with individuals in the age range 70-95 in Southwest Sweden. The cohort was stratified into study groups based on participants´answers to a questionnaire of different lifestyle factors including vitamin supplementations, smoking and drinking habits, physical activity (per year), sun exposure and eating habits. Vitamin D intake was evaluated from the vitamin D supplementation (alone or in a multivitamin complex), dietary vitamin D intake (fish and seafood frequency) and vitamin D synthesis in the skin (sunlight exposure and use of sunscreen). Differential methylation analysis was performed for all the study groups and the combination of different factors with vitamin D supplementation. Gender, age, smoking and alcohol (SD and frequency) were used as covariates in the analyses. Only the study groups referred to the conclusions of the study are shown.

2022-07-23 | E-MTAB-11445 | biostudies-arrayexpress

Gene expression data from iPSC-derived neural cells, comparison between APP wild and E693delta mutation

Project description:Oligomeric forms of amyloid-beta peptide (Abeta) are presumed to play a pivotal role in the pathogenesis of Alzheimer’s disease (AD). However, it is still unclear how Abeta oligomers contribute to AD pathogenesis in patient neural cells. We generated induced pluripotent stem cells (iPSCs) from a familial AD patient and differentiated them into neural cells. Abeta oligomers were accumulated in neural cells of AD bearing amyloid precursor protein (APP)-E693delta mutation. To uncover Abeta oligomers in AD(APP-E693delta) neural cells, we analyzed gene expression profiles of control and the AD neural cells

2013-03-22 | GSE43326 | GEO

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data