Sort   by:  
 Page size 
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
MetabolomicsTargeting SLC1A5-mediated glutamine metabolism overcomes PARP inhibitor resistance in ovarian cancer

Poly(ADP-ribose) polymerase inhibitors (PARPi), such as olaparib, have significantly improved outcomes in ovarian cancer (OC); however, therapy resistance remains a major clinical challenge. Here, we showed that glutamine metabolism was upregulated in PARPi-resistant OC cells and identified the g...

2026-04-08 | MTBLS14072 | MetaboLights
ProteomicsPARG is Essential for Pol-theta-Mediated DNA End-Joining by Removing Repressive Poly-ADP Ribose Marks
DNA polymerase theta (Pol-theta)-mediated end-joining (TMEJ) repairs DNA double-strand breaks and confers resistance to genotoxic agents. How Pol-theta is regulated at the molecular level to exert TMEJ remains unknown. We find that Pol-theta interacts with and is PARylated by PARP1 in vitro and in c...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
MSV000092839 | MassIVE
TranscriptomicsRNAi of human MCF7 cells knocked down for PARP-1 or PARGs
Poly(ADP-ribose) polymerase-1 (PARP-1) and poly(ADP-ribose) glycohydrolase (PARG) are enzymes that modify target proteins in the nucleus by the addition and removal, respectively, of ADP-ribose polymers. Although a role for PARP-1 in gene regulation has been well established, the role of PARG is le...
ORGANISM(S): Homo sapiens 
2009-10-30 | E-GEOD-12952 | biostudies-arrayexpress
ProteomicsMultiple roles for PARP1 in ALC1-dependent nucleosome remodeling
XL-MS mass spectrometry analysis Cross-linked peptides were resolved for mass spectrometry analysis using a Dionex UltiMate 3000 RSLnano liquid chromatography system. Peptides were initially loaded from the autosampler onto an Acclaim PepMap 100 C18 LC Trap Cartridge (0.3 mm inside diameter, 5 mm le...
ORGANISM(S): Homo Sapiens (ncbitaxon:9606) 
2021-04-10 | MSV000087174 | MassIVE
ProteomicsEwing sarcoma protein-mediated regulation of poly(ADP-ribose) polymerase 1 dissociation
Poly(ADP-ribose) polymerase 1 (PARP1) critically facilitates DNA damage response (DDR) that suppresses genomic instability. However, the physiological function of PARP1 in regulating genomic integrity is unclear. We investigated the Ewing’s sarcoma breakpoint region 1 (EWS) and found that it regulat...
ORGANISM(S): Mus musculus (Mouse) 
2020-11-03 | PXD016145 | Pride
Ews Dna damage response (ddr) Parylation Parp-1 Par 
TranscriptomicsNotch/HES1-mediated PARP1 activation: A cell-type specific mechanism for tumor suppression
Notch signaling plays both oncogenic and tumor suppressor roles, depending on cell type. In contrast to T cell acute lymphoblastic leukemia (T-ALL), where Notch activation promotes leukemogenesis, induction of Notch signaling in B-ALL leads to growth arrest and apoptosis. The Notch target Hairy/Enha...
ORGANISM(S): Homo sapiens 
2011-12-12 | E-GEOD-26366 | biostudies-arrayexpress
MetabolomicsMulti-omics characterization of acquired Olaparib resistance in BRCA1 and BRCA2 mutant breast cancer cell lines
Poly (ADP-ribose) polymerase inhibitors (PARPi) are widely used as targeted therapies against breast cancers with BRCA mutations. However, the development of resistance to PARPi poses a significant challenge for long-term efficacy of these therapies, warranting further understanding of mechanisms of...
2026-05-11 | MTBLS12109 | MetaboLights
GenomicsEssential role of poly(ADP-ribosyl)ation in cocaine action
Many of the long-term effects of cocaine on the brain's reward circuitry have been shown to be mediated by alterations in gene expression. Several chromatin modifications, including histone acetylation and methylation, have been implicated in this regulation, but the effect of other histone modifica...
ORGANISM(S): Mus musculus 
2014-02-20 | E-GEOD-55136 | biostudies-arrayexpress
Sort   by:  
 Page size