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Genome map of SND1 binding sites by ChIP-chip analysis in human HepG2 cells under inflammatory conditions.

ABSTRACT: Profiling of promoter occupancy by SND1 coactivator in human hepatoma cells. Control and TNFα-treated HepG2 cells are immunoprecipitated with anti-SND1 antibody and input and immunoprecipitated material were hybridized in an Agilent human promoter microarray Two-condition experiment. Biological replicates: 3 control replicates, 3 TNFα-treated replicates. Input vs. Immunoprecipitated material

ORGANISM(S): Homo sapiens

SUBMITTER: Enara Arretxe

PROVIDER: E-GEOD-61539 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Genome map of SND1 binding sites by ChIP-chip analysis in human HepG2 cells under inflammatory conditions.

Project description:Profiling of promoter occupancy by SND1 coactivator in human hepatoma cells. Control and TNFα-treated HepG2 cells are immunoprecipitated with anti-SND1 antibody and input and immunoprecipitated material were hybridized in an Agilent human promoter microarray

2015-07-31 | GSE61539 | GEO

Snd1-Mtdh interaction regulates cell survival under camptothecin-induced replication stress

Project description:PyMT tumor cells with indicated status of Mtdh and Snd1 were treated with camptothecin (CPT) and the transcirptome profiles were determined and compared two sets of experiments: (1) vector control vs Snd1-KD under CPT treament (2) PyMT/Mtdh-KO cells reconstituted with either WT or Snd1-binding deficient mutant Mtdh (W391D) under CPT treatment

2014-08-12 | E-GEOD-55522 | biostudies-arrayexpress

The methylarginine reader function of SND1 is oncogenic

Project description:Staphylococcal nuclease Tudor domain containing 1 (SND1) protein is an oncogene that “reads” methylarginine marks through its Tudor domain. Specifically, it recognizes methylation marks deposited by protein arginine methyltransferase 5 (PRMT5), which is also known to promote tumorigenesis. SND1 is a known driver of hepatocellular carcinoma, but it is unknown if the Tudor domain is needed to drive this disease. We sought to identify the biological role of the SND1 Tudor domain in normal and tumorigenic settings. To do so, we developed two genetically engineered SND1 mouse models, namely a knockout (Snd1 KO) and a Snd1 Tudor domain mutated (Snd1 KI) mouse. Transcriptome analysis of normal KO and KI liver samples reveals a role for the SND1 Tudor domain in regulating expression of major acute phase proteins (APPs) and genes involved in the unfolded protein response (UPR), which could provide mechanistic insight into SND1’s functions in a tumor setting. These processes may provide insight into how SND1 functions as an oncogene. These results support the use of PRMT5 inhibitors, and the development of small molecule inhibitors that target the SND1 Tudor domain, as novel treatments for HCC.

2024-09-07 | GSE237559 | GEO

Identification of Direct Targets of SND1 and VND7

Project description:This study was to find genes directly regulated by SND1 and VND7. SND1XVE- or VND7XVE-expressing cells were treated with cycloheximide alone (control) or with cycloheximide plus estradiol (experimental) to identify genes directly activated by SND1 or VND7.

2011-07-31 | E-GEOD-23555 | biostudies-arrayexpress

Expression data from SND1 knockdown clones of human HCC cell line QGY-7703

Project description:Staphylococcal nuclease domain-containing protein 1 (SND1) is overexpressed in human hepatocellular carcinoma (HCC) and positively regulates development and progression of HCC. We established stable clones expressing SND1 shRNA in QGY-7703 cells and analyzed the gene expression profiles of a control clone and two SND1 knockdown clones to check what genes are regulated by SND1. Steady-state proliferating cells were collected for RNA extraction and Affymetrix microarray hybridization. Three biological replicates each of a control clone and 2 SND1 knockdown clones.

2013-04-01 | E-GEOD-44601 | biostudies-arrayexpress

MicroRNA expression in Snd1 KO mouse liver

Project description:The RNA-binding protein Snd1 can regulate gene expression through various mechanisms, including microRNA decay. Here we have investigated microRNA expression in livers of WT and Snd1 knockout (KO) mice

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m6A-RNA mapping, SND1-RNA binding profile mapping and SND1-depletion in KSHV-infected B-lymphocytes

Project description:We have mapped m6A sites and endogenous SND1 binding sites in the viral and cellular transcriptome using TREx BCBL1-Rta cells. In addition, we have depleted SND1 in TREx BCBL1-Rta cells and BCBL1 cells and analyzed their RNA expression profile both during latency and lytic replication.

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SND1 binds SARS-CoV-2 negative-sense RNA and promotes viral RNA synthesis through NSP9

Project description:Regulation of viral RNA biogenesis is fundamental to productive SARS-CoV-2 infection. To characterize host RNA-binding proteins (RBPs) involved in this process, we biochemically identified proteins bound to genomic and subgenomic SARS-CoV-2 RNAs. We find that the host protein SND1 binds the 5ʹ end of negative-sense viral RNA and is required for SARS-CoV-2 RNA synthesis. SND1-depleted cells form smaller replication organelles and display diminished virus growth kinetics. We discover that NSP9, a viral RBP and direct SND1 interaction partner, is covalently linked to the 5ʹ ends of positive and negative-sense RNAs produced during infection. These linkages occur at replication-transcription initiation sites, consistent with NSP9 priming viral RNA synthesis. Mechanistically, SND1 remodels NSP9 occupancy and alters the covalent linkage of NSP9 to initiating nucleotides in viral RNA. Our findings implicate NSP9 in the initiation of SARS-CoV-2 RNA synthesis and unravel an unsuspected role of a cellular protein in orchestrating viral RNA production.

2023-10-05 | PXD037528 | Pride

Targeting MTDH-SND1 interaction

Project description:Targeting MTDH-SND1 interaction

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SND1 is a novel regulator of endothelial function

Project description:Staphylococcal nuclease and tudor domain containing protein 1 (SND1), which is also known as p100 or Tudor-SN, is a recently identified protein that is highly expressed in multiple cancers including breast cancer, liver cancer, and colon cancer. Endothelial function and vascular integrity are critical modulators in cancer metastasis and progression. Although much progress has been made in studying SND1’s oncogenic role, the involvement of SND1 in endothelial function has never been explored.

2024-10-30 | GSE219194 | GEO

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