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MetabolomicsThe Poly (ADP-Ribose) Polymerase inhibitor Veliparib and Radiation Cause Significant Cell Line Dependent Metabolic Changes in Breast Cancer Cells
Breast tumors are characterized into different subtypes based on their surface marker expression, which affects their prognosis and treatment. For example, triple negative breast cancer cells (ER-/PR-/Her2-) show reduced susceptibility towards radiotherapy and chemotherapeutic agents. Poly (ADP-ribo...
2016-11-07 | MTBLS337 | MetaboLights
MetabolomicsMetabolic responses induced by DNA damage and poly (ADP-ribose) polymerase (PARP) inhibition in MCF-7 cells
Genomic instability is one of the hallmarks of cancer. Several chemotherapeutic drugs and radiotherapy induce DNA damage to prevent cancer cell replication. Cells in turn activate different DNA damage response (DDR) pathways to either repair the damage or induce cell death. These DDR pathways also e...
2015-08-01 | MTBLS177 | MetaboLights
MetabolomicsIdentification and validation of poly-metabolite scores for diets high in ultra-processed food: An observational study and post-hoc randomized controlled crossover-feeding trial.

BACKGOUND: Ultra-processed food (UPF) accounts for a majority of calories consumed in the United States, but the impact on human health remains unclear. We aimed to identify poly-metabolite scores in blood and urine that are predictive of UPF intake.

METHODS AND FIN...

2025-07-12 | MTBLS12705 | MetaboLights
TranscriptomicsGenome-wide analysis of PAPS1-dependent polyadenylation identifies novel roles for functionally specialized poly(A) polymerases in Arabidopsis thaliana
The poly(A) tail at 3' ends of eukaryotic mRNAs promotes their nuclear export, stability and translational efficiency, and changes in its length can strongly impact gene expression. The Arabidopsis thaliana genome encodes three canonical nuclear poly(A) polymerases, PAPS1, PAPS2 and PAPS4. As shown ...
ORGANISM(S): Arabidopsis thaliana 
2015-07-30 | E-GEOD-57690 | biostudies-arrayexpress
Metabolomics1H NMR metabolomic and transcriptomic analyses reveal urinary metabolites as biomarker candidates in response to protein undernutrition in adult rats

BACKGROUND: Protein undernutrition is prevalent mainly among elderly people, and it could develop diseases such as sarcopenia. Urinary metabolites may become biomarkers reflecting protein undernutrition, but this has been insufficiently investigated.

OBJECTIVE:

2021-05-27 | MTBLS1452 | MetaboLights
TranscriptomicsThe nuclear actin-related protein Arp6 contributes to the radial positioning of chromosome territories.
The chromatin of individual chromosomes is organized into chromosome territories (CTs) in the interphase nucleus. The spatial arrangement of CTs is non-random and evolutionarily conserved. The gene-dense and gene-poor CTs are positioned in the nuclear center and periphery, respectively. As candidate...
ORGANISM(S): Gallus gallus 
2015-11-04 | E-GEOD-14220 | biostudies-arrayexpress
ProteomicsAn extended PAXT connection is required for turnover of nuclear polyadenylated RNA in human cells
Recruitment of the human ribonucleolytic RNA exosome to nuclear polyadenylated (pA+) RNA is facilitated by the Poly(A) Tail eXosome Targeting (PAXT) connection. Besides its core dimer, formed by the exosome co-factor MTR4 and the ZFC3H1 protein, the PAXT connection remains poorly defined. By charact...
ORGANISM(S): Homo Sapiens (human) 
2019-10-31 | PXD016070 | JPOST Repository
TranscriptomicsTarget specificity amongst canonical nuclear poly(A) polymerases in plants modulates organ growth and pathogen response
Polyadenylation of pre-mRNAs is critical for efficient nuclear export, stability and translation of the mature mRNAs, and thus for gene expression. The bulk of pre-mRNAs are processed by canonical nuclear poly(A) polymerase (PAPS). Both vertebrate and higher-plant genomes encode more than one isofor...
ORGANISM(S): Arabidopsis thaliana 
2013-07-29 | E-GEOD-48821 | biostudies-arrayexpress
TranscriptomicsA transcriptome-wide atlas of RNP compositions reveals diverse classes of mRNAs and lncRNAs
Aim: To determine how different classes of transcript (e.g. lncRNAs and mRNAs) are defined in the cell. Approach: We determined the transcriptome-wide targets of key RNA packaging, maturation, export and turnover factors. We used the CRAC technique, whereby RNA:protein interactions are fixed by UV ...
ORGANISM(S): Saccharomyces cerevisiae 
2013-08-29 | E-GEOD-46742 | biostudies-arrayexpress
TranscriptomicsmTAIL-seq reveals dynamic poly(A) tail regulation in oocyte-to-embryo development [RNA-seq and mTAIL-seq Human and Drosphila]
Eukaryotic mRNAs are subject to multiple types of tailing which critically influence mRNA stability and translatability. To investigate RNA tails at the genomic scale, we previously developed TAIL-seq, but its low sensitivity precluded its application to biological materials of minute quantity. In t...
ORGANISM(S): Drosophila melanogaster 
2016-08-01 | E-GEOD-83731 | biostudies-arrayexpress
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