Sox2 cooperates with Chd7 to regulate genes that are mutated in human syndromes - PubMed (original) (raw)

doi: 10.1038/ng.825. Epub 2011 May 1.

Umut Akinci, Jan Christian Bryne, Jun Hou, Cristina Gontan, Maaike Moen, Dorota Szumska, Christel Kockx, Wilfred van Ijcken, Dick H W Dekkers, Jeroen Demmers, Erik-Jan Rijkers, Shoumo Bhattacharya, Sjaak Philipsen, Larysa H Pevny, Frank G Grosveld, Robbert J Rottier, Boris Lenhard, Raymond A Poot

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Sox2 cooperates with Chd7 to regulate genes that are mutated in human syndromes

Erik Engelen et al. Nat Genet. 2011 Jun.

Abstract

The HMG-box transcription factor Sox2 plays a role throughout neurogenesis and also acts at other stages of development, as illustrated by the multiple organs affected in the anophthalmia syndrome caused by SOX2 mutations. Here we combined proteomic and genomic approaches to characterize gene regulation by Sox2 in neural stem cells. Chd7, a chromatin remodeling ATPase associated with CHARGE syndrome, was identified as a Sox2 transcriptional cofactor. Sox2 and Chd7 physically interact, have overlapping genome-wide binding sites and regulate a set of common target genes including Jag1, Gli3 and Mycn, genes mutated in Alagille, Pallister-Hall and Feingold syndromes, which show malformations also associated with SOX2 anophthalmia syndrome or CHARGE syndrome. Regulation of disease-associated genes by a Sox2-Chd7 complex provides a plausible explanation for several malformations associated with SOX2 anophthalmia syndrome or CHARGE syndrome. Indeed, we found that Chd7-haploinsufficient embryos showed severely reduced expression of Jag1 in the developing inner ear.

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