Human Gene Set: AFFAR_YY1_TARGETS_UP

For the Mouse gene set with the same name, see AFFAR_YY1_TARGETS_UP

Standard name AFFAR_YY1_TARGETS_UP
Systematic name M1466
Brief description Genes up-regulated in MEF cells (embryonic fibroblast) expressing ~25% of YY1 [GeneID=7528].
Full description or abstract Constitutive ablation of the Yin Yang 1 (YY1) transcription factor in mice results in peri-implantation lethality. In this study, we used homologous recombination to generate knockout mice carrying yy1 alleles expressing various amounts of YY1. Phenotypic analysis of yy1 mutant embryos expressing approximately 75%, approximately 50%, and approximately 25% of the normal complement of YY1 identified a dosage-dependent requirement for YY1 during late embryogenesis. Indeed, reduction of YY1 levels impairs embryonic growth and viability in a dose-dependent manner. Analysis of the corresponding mouse embryonic fibroblast cells also revealed a tight correlation between YY1 dosage and cell proliferation, with a complete ablation of YY1 inducing cytokinesis failure and cell cycle arrest. Consistently, RNA interference-mediated inhibition of YY1 in HeLa cells prevents cytokinesis, causes proliferative arrest, and increases cellular sensitivity to various apoptotic agents. Genome-wide expression profiling identified a plethora of YY1 target genes that have been implicated in cell growth, proliferation, cytokinesis, apoptosis, development, and differentiation, suggesting that YY1 coordinates multiple essential biological processes through a complex transcriptional network. These data not only shed new light on the molecular basis for YY1 developmental roles and cellular functions, but also provide insight into the general mechanisms controlling eukaryotic cell proliferation, apoptosis, and differentiation.
Collection C2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 16611997   Authors: Affar el B,Gay F,Shi Y,Liu H,Huarte M,Wu S,Collins T,Li E,Shi Y
Exact source Table 1S
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Source species Mus musculus
Contributed by Kevin Vogelsang (MSigDB Team)
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identifier namespace		 MOUSE_SEQ_ACCESSION
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Version history 3.1: First introduced

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