Analysis of SOD1 binding sites by next generation sequencing under different redox environments
Ontology highlight
ABSTRACT:
ORGANISM(S): Homo sapiens
PROVIDER: GSE124082 | GEO | 2018/12/20
REPOSITORIES: GEO
Similar Datasets
Project description:An important cellular defense mechanism against oxidative stress is the induction of genes involved in ROS resistance and DNA damage repair. Under normal conditions, Sod1 is localized mainly in the cytosol. However, we found that Sod1 translocates into the nucleus after oxidative stress. To address the physiological role of Sod1, we performed DNA microarray analysis of global gene expression in wild type (WT) and sod1M-NM-^T cells before and after treatment with H2O2. Early log phase WT and sod1M-NM-^T cells were treated with or without H2O2 for 20 min and RNA samples were extracted and subjected to hybridization on Affymetrix microarrays. We then compared the dataset of WT +/- H2O2 with SOD1 deleted cells +/- H2O2 to identify the H2O2-responsive genes whose induction was attenuated in sod1M-NM-^T cells by more than 50%.
2014-03-18 | E-GEOD-55081 | biostudies-arrayexpress
Project description:An important cellular defense mechanism against oxidative stress is the induction of genes involved in ROS resistance and DNA damage repair. Under normal conditions, Sod1 is localized mainly in the cytosol. However, we found that Sod1 translocates into the nucleus after oxidative stress. To address the physiological role of Sod1, we performed DNA microarray analysis of global gene expression in wild type (WT) and sod1Δ cells before and after treatment with H2O2.
2014-03-18 | GSE55081 | GEO
Project description:Purpose: mRNA-sequencing has revolutionized systems-based analysis of cellular pathways. The goals of this study are to systemically research the biological functions of SOD1 in ROS signaling pathway using specific SOD1 inhibitor-LD100 and its validated siRNA. Methods: We reported the mRNA-sequencing data of HeLa cells (designated as C), LD100-treated HeLa cells (L), SOD1 knockdown HeLa cells (S), DU145 cells (DC), LD100-treated DU145 cells (DL), RWPE-1 cells (RC) and LD100-treated RWPE-1 cells (RL). All the samples were sequenced in triplicate, using Illumina HiSeq PE150. Remaining paired-end clean reads were aligned to the reference genome (GRCh38) using HISAT aligner. After calculating the reads numbers mapped to each gene by HTSeq, we estimated gene expression levels via FPKM. Differential expression analysis of two different groups was performed using the DESeq R package, which was based on a model of negative binomial distribution. Results: A total of 133,070,980 reads in the control group, 128,097,025 reads in the SOD1 knockdown group, and 129,315,055 in the LD100-treated group were mapped to the reference genome. The total of 4513 differentially expressed genes (DEGs) was identified in the knockdown group, and the total of 2650 DEGs was identified in the SOD1 inhibition group compared to the control group. A total of 170,657,327 and 175,502,302 reads in the control group of DU145 and RWPE-1, 181,591,462 and 179,503,168 reads in the LD100-treated group of DU145 and RWPE-1 were respectively mapped to the reference genome. Among them, 8806 DEGs were identified in the LD100-treated DU145 cells compared to the control, but only 1503 DEGs were identified in the LD100-treated RWPE-1 cells compared to the control. Conclusions: The global transcriptomic data on HeLa, DU145 and RWPE-1 after SOD1 inhibition using its specific inhibitor-LD100 indicated that the most changed expression upon this interruption of ROS homeostasis is the key genes in plenty of signaling pathways inside cancer cells, not inside normal cells, although mRNA levels of numerous genes are altered in three lines of cells. The modulation of gene expression leads to repression of multiple signaling pathways including ERK, PI3K and NF-KB and their crosstalk to promote cell growth and activation of the signaling pathways to cause both cell cycle arrest and apoptosis. These modulated signaling pathways constitute a ROS signaling network, and SOD1 is a master hub in modulation of the network to selectively kill cancer cells.
2018-03-23 | GSE112007 | GEO
Project description:Here we present the study on ChIP-chip mapping of the genomic binding sites for Sty1, Atf1, and the Atf1's binding partner Pcr1; the genome-wide transcriptional profiling of the atf1 and pcr1 strains in response to H2O2; and the phenotypic assessment of ~90 Atf1/Pcr1-bound or unbound genes for growth fitness under H2O2 conditions. ChIP-chip analysis shows that Atf1 and Pcr1 binding sites are overlapped in the genome and constitutively present before H2O2 stress. On the other hand, Sty1 recruitment primarily occurs at the Atf1/Pcr1 binding sites and is induced by H2O2. We found that Atf1/Pcr1 is clearly responsible for the high-level transcriptional response to H2O2. Furthermore, phenotypic assessment indicates that among the H2O2-induced genes, Atf1/Pcr1-bound genes exhibit a higher likelihood of functional requirement for growth fitness under the stress condition than the Atf1/Pcr1-unbound genes do. Notably, we found that the Atf1/Pcr1-bound genes regardless of their responsiveness to H2O2 show a high probability of requirement for growth fitness. .
2010-07-19 | GSE13053 | GEO
Project description:Here we present the study on ChIP-chip mapping of the genomic binding sites for Sty1, Atf1, and the Atf1's binding partner Pcr1; the genome-wide transcriptional profiling of the atf1 and pcr1 strains in response to H2O2; and the phenotypic assessment of ~90 Atf1/Pcr1-bound or unbound genes for growth fitness under H2O2 conditions. ChIP-chip analysis shows that Atf1 and Pcr1 binding sites are overlapped in the genome and constitutively present before H2O2 stress. On the other hand, Sty1 recruitment primarily occurs at the Atf1/Pcr1 binding sites and is induced by H2O2. We found that Atf1/Pcr1 is clearly responsible for the high-level transcriptional response to H2O2. Furthermore, phenotypic assessment indicates that among the H2O2-induced genes, Atf1/Pcr1-bound genes exhibit a higher likelihood of functional requirement for growth fitness under the stress condition than the Atf1/Pcr1-unbound genes do. Notably, we found that the Atf1/Pcr1-bound genes regardless of their responsiveness to H2O2 show a high probability of requirement for growth fitness. . Expression level of genes in triplicates at 0min (without stress) is compared with that at 10, 30, 60, and 120min after stress treatment. ChIP-chip analyses is done for Atf1-HA, pcr1-HA, sty1-HA, Sty1-HA allele in the atf1D or pcr1D background without and with H2O2 (0.5mM for 30min).
2010-07-19 | E-GEOD-13053 | biostudies-arrayexpress
Project description:Mutated SOD1 immunoprecipitation samples in the nucleus and cytoplasm from the ALS model mouse-derived cell line DF7.
2024-01-27 | PXD039696 | JPOST Repository
Project description:SOD1 is known as the major cytoplasmic superoxide dismutase and an anticancer target. However, the role of SOD1 in cancer is not fully understood. Herein we describe the generation of an inducible Sod1 knockout in KRAS-driven NSCLC mouse model. Sod1 knockout markedly reduces tumor burden in vivo and blocks growth of KRAS mutant NSCLC cells in vitro. Intriguingly, SOD1 is enriched in the nucleus and notably in the nucleolus of NSCLC cells. The nuclear and nucleolar, not cytoplasmic, form of SOD1 is essential for lung cancer cell proliferation. Moreover, SOD1 interacts with PeBoW complex and controls its assembly necessary for pre-60S ribosomal subunit maturation. Mechanistically, SOD1 regulates co-localization of PeBoW with and processing of pre-rRNA, and maturation of cytoplasmic 60S ribosomal subunits in KRAS mutant lung cancer cells. Collectively, our study unravels a nuclear SOD1 function essential for ribosome biogenesis and proliferation in KRAS-driven lung cancer.
2021-03-12 | MSV000087044 | MassIVE
Project description:Analysis of SOD1 binding sites by next generation sequencing under different redox environments
| PRJNA510739 | ENA
Project description:Begitt2014 - STAT1 cooperative DNA binding - single GAS polymer model
The importance of STAT1-cooperative DNA binding in type 1 and type 2 interferon signalling has been studies using experimental and modelling approaches. The authors have developed two ODE models to describe STAT1 binding to short promoter regions of DNA, namely "single GAS polymer model" and "double GAS polymer model" considering binding to single or double GAS sites, respectively. The length of DNA in the single GAS model was three sites and four sites in double GAS model. This model correspond to the "single GAS polymer model".
This model is described in the article:
STAT1-cooperative DNA binding distinguishes type 1 from type 2 interferon signaling.
Begitt A, Droescher M, Meyer T, Schmid CD, Baker M, Antunes F, Owen MR, Naumann R, Decker T, Vinkemeier U
Nat Immunol. 2014 Feb;15(2):168-76.
Abstract:
STAT1 is an indispensable component of a heterotrimer (ISGF3) and a STAT1 homodimer (GAF) that function as transcription regulators in type 1 and type 2 interferon signaling, respectively. To investigate the importance of STAT1-cooperative DNA binding, we generated gene-targeted mice expressing cooperativity-deficient STAT1 with alanine substituted for Phe77. Neither ISGF3 nor GAF bound DNA cooperatively in the STAT1F77A mouse strain, but type 1 and type 2 interferon responses were affected differently. Type 2 interferon-mediated transcription and antibacterial immunity essentially disappeared owing to defective promoter recruitment of GAF. In contrast, STAT1 recruitment to ISGF3 binding sites and type 1 interferon-dependent responses, including antiviral protection, remained intact. We conclude that STAT1 cooperativity is essential for its biological activity and underlies the cellular responses to type 2, but not type 1 interferon.
This model is hosted on BioModels Database
and identified
by: BIOMD0000000500
.
To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource
for published quantitative kinetic models
.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to the public
domain worldwide. Please refer to CC0 Public Domain
Dedication
for more information.
2024-09-02 | BIOMD0000000500 | BioModels
Project description:Begitt2014 - STAT1 cooperative DNA binding - double GAS polymer model
The importance of STAT1-cooperative DNA binding in type 1 and type 2 interferon signalling has been studies using experimental and modelling approaches. The authors have developed two ODE models to describe STAT1 binding to short promoter regions of DNA, namely "single GAS polymer model" and "double GAS polymer model" considering binding to single or double GAS sites, respectively. The length of DNA in the single GAS model was three sites and four sites in double GAS model. This model correspond to the "double GAS polymer model".
This model is described in the article:
STAT1-cooperative DNA binding distinguishes type 1 from type 2 interferon signaling.
Begitt A, Droescher M, Meyer T, Schmid CD, Baker M, Antunes F, Owen MR, Naumann R, Decker T, Vinkemeier U
Nat Immunol. 2014 Feb;15(2):168-76.
Abstract:
STAT1 is an indispensable component of a heterotrimer (ISGF3) and a STAT1 homodimer (GAF) that function as transcription regulators in type 1 and type 2 interferon signaling, respectively. To investigate the importance of STAT1-cooperative DNA binding, we generated gene-targeted mice expressing cooperativity-deficient STAT1 with alanine substituted for Phe77. Neither ISGF3 nor GAF bound DNA cooperatively in the STAT1F77A mouse strain, but type 1 and type 2 interferon responses were affected differently. Type 2 interferon-mediated transcription and antibacterial immunity essentially disappeared owing to defective promoter recruitment of GAF. In contrast, STAT1 recruitment to ISGF3 binding sites and type 1 interferon-dependent responses, including antiviral protection, remained intact. We conclude that STAT1 cooperativity is essential for its biological activity and underlies the cellular responses to type 2, but not type 1 interferon.
This model is hosted on BioModels Database
and identified
by: BIOMD0000000501
.
To cite BioModels Database, please use: BioModels Database: An enhanced, curated and annotated resource
for published quantitative kinetic models
.
To the extent possible under law, all copyright and related or
neighbouring rights to this encoded model have been dedicated to the public
domain worldwide. Please refer to CC0 Public Domain
Dedication
for more information.
2024-09-02 | BIOMD0000000501 | BioModels