Mouse Gene Set: JONES_TCOF1_TARGETS

For the Human gene set with the same name, see JONES_TCOF1_TARGETS

Standard name JONES_TCOF1_TARGETS
Systematic name MM1232
Brief description Genes up-regulated in E8.5 embryos with heterozygous knockout of TCOF1 [GeneID=6949] compared to wild type.
Full description or abstract Treacher Collins syndrome (TCS) is a congenital disorder of craniofacial development arising from mutations in TCOF1, which encodes the nucleolar phosphoprotein Treacle. Haploinsufficiency of Tcof1 perturbs mature ribosome biogenesis, resulting in stabilization of p53 and the cyclin G1-mediated cell-cycle arrest that underpins the specificity of neuroepithelial apoptosis and neural crest cell hypoplasia characteristic of TCS. Here we show that inhibition of p53 prevents cyclin G1-driven apoptotic elimination of neural crest cells while rescuing the craniofacial abnormalities associated with mutations in Tcof1 and extending life span. These improvements, however, occur independently of the effects on ribosome biogenesis; thus suggesting that it is p53-dependent neuroepithelial apoptosis that is the primary mechanism underlying the pathogenesis of TCS. Our work further implies that neuroepithelial and neural crest cells are particularly sensitive to cellular stress during embryogenesis and that suppression of p53 function provides an attractive avenue for possible clinical prevention of TCS craniofacial birth defects and possibly those of other neurocristopathies.
Collection M2: Curated
      CGP: Chemical and Genetic Perturbations
Source publication Pubmed 18246078   Authors: Jones NC,Lynn ML,Gaudenz K,Sakai D,Aoto K,Rey JP,Glynn EF,Ellington L,Du C,Dixon J,Dixon MJ,Trainor PA
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Source species Mus musculus
Contributed by Jessica Robertson (MSigDB Team)
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Mouse_RefSeq
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Version history 2022.1.Mm: First Introduced.

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