Analysis of the NSD1 promoter region in patients with a Sotos syndrome phenotype

Remco Visser, Tomonobu Hasegawa, Norio Niikawa, Naomichi Matsumoto

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Sotos syndrome (SoS, OMIM#117550) is an overgrowth disorder characterized by excessive growth - especially in the first years of childhood - distinctive craniofacial features, and various degrees of mental retardation. Haploinsufficiency of the nuclear receptor binding SET domain containing protein 1 (NSD1) gene, due to either intragenic mutations or whole-gene microdeletions, is found in the majority of patients with SoS. However, in approximately 10-40% of patients with a typical SoS phenotype, no abnormalities are detected. In this study, hemizygous hypermethylation or genomic sequence abnormalities of the promoter region of NSD1 were hypothesized to be the underlying cause in patients with a SoS phenotype, but without confirmed NSD1 alterations. In 18 patients, including one patient with a reported hepatocellular carcinoma, the promoter region of NSD1 was analyzed. However, no hypermethylation or sequence abnormalities in the promoter region could be detected. It therefore seems unlikely that such abnormalities of NSD1 are a major culprit in patients with phenotypical SoS. Additional methods are necessary for detection of other genetic or epigenetic causes of SoS.

Original languageEnglish
Pages (from-to)15-20
Number of pages6
JournalJournal of Human Genetics
Volume51
Issue number1
DOIs
Publication statusPublished - 2006 Jan

Fingerprint

Sotos Syndrome
Genetic Promoter Regions
Phenotype
Genetic Databases
Haploinsufficiency
Cytoplasmic and Nuclear Receptors
Epigenomics
Intellectual Disability
Genes
Hepatocellular Carcinoma
Mutation
Growth

Keywords

  • Epimutation
  • Methylation
  • NSD1
  • Promoter
  • Sotos syndrome

ASJC Scopus subject areas

  • Genetics(clinical)
  • Genetics

Cite this

Analysis of the NSD1 promoter region in patients with a Sotos syndrome phenotype. / Visser, Remco; Hasegawa, Tomonobu; Niikawa, Norio; Matsumoto, Naomichi.

In: Journal of Human Genetics, Vol. 51, No. 1, 01.2006, p. 15-20.

Research output: Contribution to journalArticle

Visser, Remco ; Hasegawa, Tomonobu ; Niikawa, Norio ; Matsumoto, Naomichi. / Analysis of the NSD1 promoter region in patients with a Sotos syndrome phenotype. In: Journal of Human Genetics. 2006 ; Vol. 51, No. 1. pp. 15-20.
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