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NOTCH1 mediates a reciprocal switch between two distinct secretomes during senescence [N1ICD]

ABSTRACT: ER:RAS-G12V expressing IMR90 cells were transduced with N1ICD-containing or control vectors before treatment with either 100nM 4-OHT or vehicle for 6 days leading to Notch-induced senescence (NIS), RAS-induced senescence (RIS) or combined Notch and Ras-induced senescence (RNIS).

ORGANISM(S): Homo sapiens

PROVIDER: GSE72404 | GEO | 2016/06/22

SECONDARY ACCESSION(S): PRJNA293982

REPOSITORIES: GEO

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NOTCH-mediated non-cell autonomous regulation of chromatin structure during senescence [ATAC-Seq]

Project description:We describe the accessible chormatin landscape in RAS-induced (RIS) and NOTCH induced senescence (NIS) using ATAC-seq. By expressing active NOTCH (N1ICD) in the context of RIS, we find that N1ICD antagonizes the formation of accessible regions in RIS. By performing co-cultures, we demonstrate that cells expressing a NOTCH1 ligand, JAGGED1, can antagonize the formation of RIS specific accessible regions.

2018-04-24 | GSE103588 | GEO

NOTCH-mediated non-cell autonomous regulation of chromatin structure during senescence [RNA-Seq]

Project description:We decribe the accessible chormatin landscape in RAS-induced (RIS) and NOTCH induced senescence (NIS) using ATAC-seq. By expressing active NOTCH (N1ICD) in the context of RIS, we find that N1ICD antagonises the formation of accessible regions in RIS. By performing co-cultures, we demonstrate that cells expressing a NOTCH1 ligand, JAGGED1, can antagonise the formation of RIS specific accessible regions.

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NOTCH1 mediates a reciprocal switch between two distinct secretomes during senescence [CSM]

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Project description:ER:RAS-G12V expressing IMR90 cells were treated with either 100nM 4-OHT or 40uM Celecoxib or both for 6 days leading to RAS-induced senescence (RIS) with or without COX2 inhibition.

2021-01-25 | GSE145650 | GEO

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Project description:ER:RAS-G12V expressing IMR90 cells were given 100nM 4-OHT and assessed for transcriptional profiling at various time points. IMR90 cells expressing a 4-hydroxytamoxifen (4-OHT) inducible estrogen receptor (ER)-coupled RAS-G12V (ER:RAS-G12V) were given 100nM 4-OHT for these eight time points (0, 2, 8, 24hrs, 2, 4, 6 and 8days) then analysed for transcriptional profiling using the illumina expression array platform (human-6 v2 Expression BeadChips). There were three biological replicates (batch A, B and D) for each of the time points.

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Autophagy mediates the mitotic senescence transition

Project description:ER:RAS-G12V expressing IMR90 cells were given 100nM 4-OHT and assessed for transcriptional profiling at various time points.

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Gene expression profiles of Ras mutants.

2009-02-21 | GSE14934 | GEO

Gene expression profiles of Ras mutants.

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Project description:Analysis of gene expression profile in Ras-induced senescent human diploid fibroblasts with or without depletion of fzr1/cdh1. Results provide insight into the effect on fzr1/cdh1 on the regulation of senescence-associated gene expression in human diploid fibroblasts. IMR-90-ER:Ras cells were cultured for 6 days with or without 4-hydroxytamoxifen (OHT) and were subsequently subjected to transfection with siRNA oligos against fzr1/cdh1 or control for three times (at 2 day intervals). Total RNA was isolated using Trizol reagent and were analyzed using the human 3D-Gene DNA chip (Toray) which that contains 25000 genes. The genome wide transcriptional response of proliferating cells (IMR si control2) and fzr1/cdh1 depleted senescent cells (IMR+OHT si cdh1) were compared to that of senescent cells (IMR+OHT si control).

2012-07-31 | E-GEOD-30790 | biostudies-arrayexpress

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