Similar Datasets
Project description:The effect of CDDP and iron chelators for squamous cell carcinoma
| PRJNA689543 | ENA
Project description:Gene expression analysis of SW480 cells treated with inhibitor compounds for 6 hours. Results provide insights into the role of iron in Wnt signalling and demonstrate that iron depletion is the primary mode of actions of these compounds on Wnt pathway.
2011-10-16 | GSE32369 | GEO
Project description:Gene expression analysis of SW480 cells treated with inhibitor compounds for 6 hours. Results provide insights into the role of iron in Wnt signalling and demonstrate that iron depletion is the primary mode of actions of these compounds on Wnt pathway. SW480 cells were incubated with 10 mM of compounds (OICR623), control (DMSO) and two known iron chelators (DFO and Deferasirox) for 6 hours. RNA was extracted and cDNA samples isolated from 2-4 independent experiments were hybridized to the Affymetrix GeneChip® Human Gene 1.0 ST array.
2011-10-15 | E-GEOD-32369 | biostudies-arrayexpress
Project description:The molecular role of iron in gene expression remains poorly characterized. Moreover, the alterations in global gene expression after iron chelation remains unclear and are important to assess for understanding the molecular pathology of iron-depletion and the biological effects of iron chelators. We assessed the effect on whole genome gene expression of two iron chelators (desferrioxamine and Dp44mT). These studies are important for understanding the molecular and cellular effects of iron-depletion.
2011-12-31 | GSE26920 | GEO
Project description:Iron-deficiency affects 500 million people, yet the molecular role of iron in gene expression remains poorly characterized. Moreover, the alterations in global gene expression after iron chelation remains unclear and are important to assess for understanding the molecular pathology of iron-deficiency and the biological effects of iron chelators. We assessed the effect on whole genome gene expression of two iron chelators (desferrioxamine and 2-hydroxy-1-napthylaldehyde isonicotinoyl hydrazone) that have markedly different permeability properties. Sixteen genes were significantly regulated by both chelators, while a further 50 genes were regulated by either ligand. Most of the genes identified in this study have not been previously described to be iron-regulated and are important for understanding the molecular and cellular effects of iron-deficiency.
2010-02-28 | GSE17832 | GEO
Project description:Iron-deficiency affects 500 million people, yet the molecular role of iron in gene expression remains poorly characterized. Moreover, the alterations in global gene expression after iron chelation remains unclear and are important to assess for understanding the molecular pathology of iron-deficiency and the biological effects of iron chelators. We assessed the effect on whole genome gene expression of two iron chelators (desferrioxamine and 2-hydroxy-1-napthylaldehyde isonicotinoyl hydrazone) that have markedly different permeability properties. Sixteen genes were significantly regulated by both chelators, while a further 50 genes were regulated by either ligand. Most of the genes identified in this study have not been previously described to be iron-regulated and are important for understanding the molecular and cellular effects of iron-deficiency. The MCF-7 cells were incubated with either control medium or this medium containing DFO (250 µM) or 311 (25 µM) for 24 h at 37oC. These concentrations were used since our previous studies demonstrated that under these conditions these chelators lead to up-regulation of iron-responsive genes such as the TfR1 after this incubation time.8 Moreover, the higher concentration of DFO was implemented due to its limited ability to permeate cell membranes. Total RNA was isolated from cells in 1 mL of TRIzol® reagent (Invitrogen). Samples were then prepared and hybridized to the Human Genome U133 Plus 2.0 430 2.0. The human GeneChip® U133 Plus 2.0 consists of greater than 47,000 transcripts and variants from over 38,500 well characterized human genes. On completion of hybridization and washing, microarray chips were scanned with the Affymetrix GeneChip® Scanner 3000 (Affymetrix).
2010-03-09 | E-GEOD-17832 | biostudies-arrayexpress
Project description:The molecular role of iron in gene expression remains poorly characterized. Moreover, the alterations in global gene expression after iron chelation remains unclear and are important to assess for understanding the molecular pathology of iron-depletion and the biological effects of iron chelators. We assessed the effect on whole genome gene expression of two iron chelators (desferrioxamine and Dp44mT). These studies are important for understanding the molecular and cellular effects of iron-depletion. The DMS-53 cells were incubated with either control medium or this medium containing DFO (250 µM) or Dp44mT (25 µM) for 24 h at 37oC. These concentrations were used since our previous studies demonstrated that under these conditions these chelators lead to up-regulation of iron-responsive genes such as the TfR1 after this incubation time. Moreover, the higher concentration of DFO was implemented due to its limited ability to permeate cell membranes. Total RNA was isolated from cells in 1 mL of TRIzol® reagent (Invitrogen). Samples were then prepared and hybridized to the Human Genome U133 Plus 2.0 430 2.0. The human GeneChip® U133 Plus 2.0 consists of greater than 47,000 transcripts and variants from over 38,500 well characterized human genes. On completion of hybridization and washing, microarray chips were scanned with the Affymetrix GeneChip® Scanner 3000 (Affymetrix).
2011-12-31 | E-GEOD-26920 | biostudies-arrayexpress
Project description:the goal of this study is to use high-throughput RNA-Sequencing technology to identify genes that are differentially expressed in iron deficient (ID) placentas compared to iron adequate (IA) placentas. A secondary aim is to explore whether iron deficiency has differential impact on male compared with female placental transcriptome.
2020-09-23 | GSE157667 | GEO
Project description:The design and synthesis of metal chelators with extraordinary metal affinities is a basic and challenging scientific problem of both fundamental and practical importance. Here, we demonstrate a "conformational stability effect" that can significantly enhance the metal affinity of ligands after conjugation to polymer chains with the ability to spontaneously adopt a specific conformation as an optimal "soft" scaffold to ensure maximum thermodynamic stability of the metal complexes. Using iron chelators as models, we show that simple conjugation of small molecule catechol ligands to a polyallylamine chain resulted in more than 8-9 orders of magnitude enhancement of the iron-binding affinity, which is comparable to that of enterobactin, the strongest iron chelator ever known. This study demonstrates that flexible polymer chelators may realize the highest possible metal affinities of the conjugated ligands owing to their ability to achieve an optimal conformation, which could advance the identification of strong metal chelators.
| S-EPMC6820273 | biostudies-other
Project description:Transcriptomic profiling of Pseudomonas fluorescens Pf-5 comparing iron(II) chloride supplemented grown culture against non-iron treated grown culture in M9 minimal media Two-condition experiment, iron(II) chloride supplemented culture versus non-iron treated culture. 4 biological replicates including 3 technical replicates for one of the biological replicates. Swap-dye experiments were performed
2011-05-16 | E-GEOD-29319 | biostudies-arrayexpress