Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA147161 | ENA |
REPOSITORIES: ENA
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Project description:Epigenetics of human T cells during the G0 to G1 transition. ChIP was performed with anti-H3Ac (H3K9/K14Ac) (Upstate Inc), anti-H3K4me3 (b8580), -H3K9me2 (ab7312 or 1220-25, Abcam) and H3K9me3 (Upstate Inc)
2009-05-22 | E-MEXP-2188 | biostudies-arrayexpress
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2014-02-21 | GSE46511 | GEO
Project description:NIH3T3 in the middle of G0 to G1 transion consists of the cells which is still staying G0 phase and the cells which enters G1. Monitoring the expressions of p27 and Cdt1 enables to distinguish these two; p27+/Cdt1+ cells as the cells in G0 phase and p27-Cdt1+ cells as G1 phase We sorted p27+Cdt1+ (G0) NIH3T3 cells and p27-Cdt1+ (G1) NIH3T3 cells in the middle of G0-G1 transition, 5 hours after serum addition following the serum addition using mVenus-p27K- and mCherry-hCdt1(30/120) . We compared the expression profiles of these NIH3T3 cells in G0 and G1 phases and identified the genes upregulated in G0 or G1 phases. The p27+Cdt1+ (G0) NIH3T3 cells and p27-Cdt1+ (G1) NIH3T3 cells were sorted by FACS for RNA extraction and hybridization on Affymetrix microarrays.
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Project description:Whole transcriptome differential expression analysis of HFF cells on Affymetrix Human Tiling 1.0 array set. Cells were synchronised by serum starvation and transcriptome-wide changes occurring at the transition from G0 phase to G1 phase detected. Expression data and fold changes were processed with Tiling Array Software (TAS). We analyzed one Affymetrix Human Tiling 1.0R set each for HFF cells in G0 phase and cells in G1 phase
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Project description:The development of ovarian follicles constitutes the foundation of female reproduction. The proliferation of granulosa cells (GCs) is a basic process required to ensure normal follicular development. However, the mechanisms involved in controlling GC cell cycle are not fully understood. Here, by performing gene expression profiling, we showed that cell cycle arrest at G0/G1 phase is highly correlated with pathways associated with hypoxic stress and FOXO signalling. Specifically, the elevated proportion of GCs at the arrested G0/G1 phase was accompanied by increased nuclear translocation of FOXO1 under conditions of hypoxia both in vivo and in vitro. Actually, phosphorylation of 14-3-3 by the JNK kinase is required for hypoxia-mediated FOXO1 activation and the resultant G0/G1 arrest. Notably, FOXO1 mutant without DNA-binding activity failed to induce G0/G1 arrest of GCs during hypoxia. Importantly, we identified a new target gene of FOXO1, namely TP53INP1, which contributed to the suppression of the G1-S cell cycle transition in response to hypoxia. Furthermore, we demonstrated that the inhibitory effect of the FOXO1-TP53INP1 axis on GC cell cycle is mediated through a p53-CDKN1A-dependent mechanism. These findings might provide avenues for the clinical treatment of human infertility caused by impaired follicular development.
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Project description:Whole transcriptome differential expression analysis of HFF cells on Affymetrix Human Tiling 1.0 array set. Cells were synchronised by serum starvation and transcriptome-wide changes occurring at the transition from G0 phase to G1 phase detected. Expression data and fold changes were processed with MAT (Johnson et al., "Model-based analysis of tiling-arrays for ChIP-chip." Proc Natl Acad Sci USA, 103:12457-62, 2006.). We analyzed one Affymetrix Human Tiling 1.0R set each for HFF cells in G0 phase and cells in G1 phase
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Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression. Two-condition experiment, Normoxic MSCs vs. Hypoxic MSCs.
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