Header

UZH-Logo

Maintenance Infos

Evidence against a major role of PEG1/MEST in Silver-Russell syndrome


Riesewijk, Anne M; Blagitko, Nadya; Schinzel, Albert; Hu, Landian; Schulz, Ute; Hamel, Ben C J; Ropers, Hans-Hilger; Kalscheuer, Vera M (1998). Evidence against a major role of PEG1/MEST in Silver-Russell syndrome. European Journal of Human Genetics, 6(2):114-120.

Abstract

Silver-Russell syndrome (SRS) is a heterogeneous disorder characterised by interauterine and postnatal growth retardation, with or without additional dysmorphic features. Most cases are sporadic but a few familial cases have been described. A subset of patients exhibit maternal uniparental disomy for chromosome 7 (mUPD7) strongly suggesting that genomic imprinting plays a role in the aetiology of the disease. We and others have recently characterised the human PEG1/MEST gene, the first imprinted gene known to be located on chromosome 7. Although the function of PEG1/MEST is unknown, the paternal-specific expression of this gene and its location at 7q32, render it a promising candidate for SRS. As a prerequisite for mutation screening in 49 patients with SRS and 9 with primordial growth retardation (PGR), we determined the complete genomic structure of the PEG1/MEST gene which consists of 12 exons. Apart from one silent mutation and two novel polymorphisms, nucleotide changes were not detected in any of these patients. Moreover, methylation patterns of the 5' region of PEG1/MEST were found to be normal in 35 SRS and 9 PGR patients and different from the pattern seen in patients with mUPD7. These findings strongly argue against a role of PEG1/MEST in the majority of Silver-Russell syndrome cases.

Abstract

Silver-Russell syndrome (SRS) is a heterogeneous disorder characterised by interauterine and postnatal growth retardation, with or without additional dysmorphic features. Most cases are sporadic but a few familial cases have been described. A subset of patients exhibit maternal uniparental disomy for chromosome 7 (mUPD7) strongly suggesting that genomic imprinting plays a role in the aetiology of the disease. We and others have recently characterised the human PEG1/MEST gene, the first imprinted gene known to be located on chromosome 7. Although the function of PEG1/MEST is unknown, the paternal-specific expression of this gene and its location at 7q32, render it a promising candidate for SRS. As a prerequisite for mutation screening in 49 patients with SRS and 9 with primordial growth retardation (PGR), we determined the complete genomic structure of the PEG1/MEST gene which consists of 12 exons. Apart from one silent mutation and two novel polymorphisms, nucleotide changes were not detected in any of these patients. Moreover, methylation patterns of the 5' region of PEG1/MEST were found to be normal in 35 SRS and 9 PGR patients and different from the pattern seen in patients with mUPD7. These findings strongly argue against a role of PEG1/MEST in the majority of Silver-Russell syndrome cases.

Statistics

Citations

Dimensions.ai Metrics
48 citations in Web of Science®
50 citations in Scopus®
Google Scholar™

Altmetrics

Downloads

0 downloads since deposited on 24 Apr 2023
0 downloads since 12 months

Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:04 Faculty of Medicine > Institute of Medical Genetics
Dewey Decimal Classification:570 Life sciences; biology
610 Medicine & health
Scopus Subject Areas:Life Sciences > Genetics
Health Sciences > Genetics (clinical)
Uncontrolled Keywords:Genetics, Genetics (medical), PEG1/MEST, Silver–Russell syndrome, uniparental disomy, imprinting
Language:English
Date:1998
Deposited On:24 Apr 2023 10:04
Last Modified:29 Apr 2024 01:37
Publisher:Nature Publishing Group
ISSN:1018-4813
OA Status:Closed
Publisher DOI:https://doi.org/10.1038/sj.ejhg.5200164
PubMed ID:9781054