title: Molecular findings in Beckwith-Wiedemann syndrome.
abstract: Our understanding of Beckwith-Wiedemann syndrome (BWS) has recently been enhanced by advances in its molecular characterization. These advances have further delineated intricate (epi)genetic regulation of the imprinted gene cluster on chromosome 11p15.5 and the role of these genes in normal growth and development. Studies of the molecular changes associated with the BWS phenotype have been instrumental in elucidating critical molecular elements in this imprinted region. This review will provide updated information on the multiple new regulatory elements that have been recently found to contribute to in cis or in trans control of imprinted gene expression in the chromosome 11p15.5 region and the clinical expression of the BWS phenotype.
authors.affiliation: Research Institute of the Hospital for Sick Children, University of Toronto, Toronto, ON, Canada.
authors.forename: Sanaa
authors.initials: S
authors.lastname: Choufani
authors.forename: Cheryl
authors.initials: C
authors.lastname: Shuman
authors.forename: Rosanna
authors.initials: R
authors.lastname: Weksberg
mesh_terms: D001506:Beckwith-Wiedemann Syndrome / Q000235:genetics*; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D002880:Chromosomes, Human, Pair 11; D006801:Humans; D027724:Reproductive Techniques, Assisted