Epimutations of the IG-DMR and the MEG3-DMR at the 14q32.2 imprinted region in two patients with Silver-Russell Syndrome-compatible phenotype.

ABSTRACT: Maternal uniparental disomy 14 (UPD(14)mat) and related (epi)genetic aberrations affecting the 14q32.2 imprinted region result in a clinically recognizable condition which is recently referred to as Temple Syndrome (TS). Phenotypic features in TS include pre- and post-natal growth failure, prominent forehead, and feeding difficulties that are also found in Silver-Russell Syndrome (SRS). Thus, we examined the relevance of UPD(14)mat and related (epi)genetic aberrations to the development of SRS in 85 Japanese patients who satisfied the SRS diagnostic criteria proposed by Netchine et al and had neither epimutation of the H19-DMR nor maternal uniparental disomy 7. Pyrosequencing identified hypomethylation of the DLK1-MEG3 intergenic differentially methylated region (IG-DMR) and the MEG3-DMR i

SUBMITTER: Kagami M 

PROVIDER: S-EPMC4795120 | biostudies-literature | 2015 Aug

REPOSITORIES: biostudies-literature