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The effect on gene expression of Smchd1 deletion in primary MEFs, transformed MEFs and MEF tumours

ABSTRACT: Smchd1 appears to act as a tumour suppressor in the transformed fibroblast model. We find gene expression differences are most pronounced in the transformed MEFs. We always detect a small number of clustered genes and imprinted genes as differentially expressed, along with others involved in tumorigenesis. The microarrays compared Smchd1 null and Smchd1 wildtype samples from different cell types (primary MEFs, transformed MEFs, tumours derived from transformed MEFs). Wildtype mice are FVB/N and Smchd1 null mice have the MommeD1 point mutation on a FBV/N background.

ORGANISM(S): Mus musculus

SUBMITTER: Gordon Smyth

PROVIDER: E-GEOD-40734 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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The effect on gene expression of Smchd1 deletion in various cell types

Project description:This SuperSeries is composed of the following subset Series: GSE40734: The effect on gene expression of Smchd1 deletion in primary MEFs, transformed MEFs and MEF tumours GSE40879: The effect on gene expression of Smchd1 deletion in pre-B cells from E17.5 Eµ-Myc embryos GSE40880: The effect on gene expression of Smchd1 deletion in end stage lymphomas GSE40881: The effect on gene expression of Smchd1 deletion in premalignant pre-B cells Refer to the individual subSeries. NOTE: all the cell types need to be analyzed separately.

2012-09-30 | E-GEOD-40992 | biostudies-arrayexpress

The effect on gene expression of Smchd1 deletion in pre-B cells from E17.5 Eµ-Myc embryos

Project description:Smchd1 appears to act as a tumour suppressor in the Eµ-Myc mouse B cell lymphoma model. We find a small number of gene expression differences at E17.5 in the pre-B cells, before phenotypic differences are observed. The microarrays compared Smchd1 null and Smchd1 wildtype E17.5 preB cell samples. All samples are on the C57BL/6 background and carry the Eµ-Myc transgene, and the Smchd1 null samples are additionally homozygous for a Smchd1 genetrap allele.

2012-09-30 | E-GEOD-40879 | biostudies-arrayexpress

The effect on gene expression of Smchd1 deletion in primary MEFs, transformed MEFs and MEF tumours

Project description:Smchd1 appears to act as a tumour suppressor in the transformed fibroblast model. We find gene expression differences are most pronounced in the transformed MEFs. We always detect a small number of clustered genes and imprinted genes as differentially expressed, along with others involved in tumorigenesis.

2012-09-30 | GSE40734 | GEO

The effect on gene expression of Smchd1 deletion in premalignant pre-B cells

Project description:Smchd1 appears to act as a tumour suppressor in the Eµ-Myc B cell lymphoma model. We find gene expression differences are most pronounced in premalignant cells. We always detect a small number of clustered genes and imprinted genes as differentially expressed, along with others involved in tumorigenesis. The microarrays compared Smchd1 null and Smchd1 wildtype samples from premalignant pre-B cells. All samples are on the C57BL/6 background, and carry the Eµ-Myc transgene. Smchd1 null samples are additionally homozygous for a Smchd1 genetrap allele.

2012-09-30 | E-GEOD-40881 | biostudies-arrayexpress

The effect on gene expression of Smchd1 deletion in end stage lymphomas

Project description:Smchd1 appears to act as a tumour suppressor in the Eµ-Myc B cell lymphoma model. We find gene expression differences are most pronounced in the premalignant cells, and observe more variability in end stage lymphomas. We always detect a small number of clustered genes and imprinted genes as differentially expressed, along with others involved in tumorigenesis. The microarrays compared Smchd1 null and Smchd1 wildtype samples from end stage lymphomas. All lymphomas are on the C57BL/6 background and carry the Eµ-Myc transgene, and Smchd1 null samples are additionally homozygous for a Smchd1 genetrap allele.

2012-09-30 | E-GEOD-40880 | biostudies-arrayexpress

Transcription profiling of mouse wildtype or Rb-/- MEFs treated with cisplatin vs. control

Project description:The absence of the Rb tumor suppressor gene changes levels/activities of transcription factors (e.g., E2F and p53) which alter gene expression patterns, related to cell cycle control and cellular response to DNA damage. Cisplatin is a genotoxic chemotherapeutic agent and wildtype or Rb null cells have different sensitivities to cisplatin-induced cytotoxicity. We used microarrays to compare global profiles of gene expression and distinct responses of wildtype and Rb null MEFs in response to cisplatin. Experiment Overall Design: Primary wildtype or Rb null MEFs were generated from embryos at embryonic day 13.5 and cultured to passage 2. Wildtype or Rb null MEFs were either untreated or treated with 16 microM cisplatin for 24 hours prior to harvest and RNA extraction. Four different RNA samples (wildtype or Rb-/- MEFs, untreated or cisplatin-treated) were used for hybridization in triplate to Affimatrix Chips. Then, the total of 12 hybridizations were divided into 4 subseries: UT-Rb, UT-WT, CP-Rb, CP-Wt, and each subseries contained three samples (hybridization 1-3 or a-c).

2008-06-14 | E-GEOD-6206 | biostudies-arrayexpress

chrRNA-seq in wild-type, SmcHD1 MommeD1mut and somKO MEFs

Project description:chrRNA-seq in wild-type, SmcHD1 MommeD1mut and somKO MEFs

| PRJNA496037 | ENA

Hi-C in wild-type, SmcHD1 MommeD1mut and somKO MEFs

Project description:Hi-C in wild-type, SmcHD1 MommeD1mut and somKO MEFs

| PRJNA495638 | ENA

RNA-seq in Smchd1 wild-type and Smchd1 null presomitic mesoderm from E9.5 embryos

Project description:We sought to examine whether the non-canonical SMC protein Smchd1 plays a role in chromosome conformation. We used in situ Hi-C to analyse chromosome conformation changes upon deletion of the epigenetic regulator Smchd1 in female neural stem cells. In parallel, we analysed nucleosome accessibility using ATAC-seq, gene expression using RNA-seq, chromatin marks H3K27me3 and H3K27ac and Ctcf binding using ChIP-seq. We additionally analysed Smchd1 binding genome-wide using ChIP-seq. Together, we find that deletion of Smchd1 alters chromosome conformation at Smchd1 target genes including the inactive X chromosome, Hox genes and imprinted loci. Smchd1 deletion in differentiating ES cells results in failed Hox gene silencing and Smchd1 null E9.5 embryos show altered Hox gene expression.. Smchd1 deletion results in gain in Ctcf binding and activation of enhancers. We propose Smchd1 functions by limiting Ctcf-mediated chromosome looping.

2018-06-30 | GSE112041 | GEO

Expression analysis data from large T antigen-immortalized murine embryonic fibroblasts (MEFs)

Project description:Microarrays were used to examine the genome-wide expression in FIH null, VHL null and VHL/FIH double null MEFs. We used these data to analyze how deletion of FIH or VHL alone affects gene expression and if VHL and FIH have synergistic effects and differential selectivity on regulating gene expression. To assess how deletion of FIH, VHL and both VHL and FIH affect gene expression genome-widely, we generated FIH null, VHL null and VHL/FIH double null MEFs after adeno-cre virus infection on large T-immortalized FIHdf, VHLdf, and VHLdf/FIHdf MEFs. These MEFs were cultured under normoxia (21% O2) with complete culture medium before RNA extraction. Total RNA were isolated by using Qiagen RNeasy kit and treated with on-column DNase digestion. Affymetrix GeneChip Mouse Genome 430 2.0 Array was used.

2010-04-28 | E-GEOD-20335 | biostudies-arrayexpress

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