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Phenotype, cancer risk, and surveillance in Beckwith-Wiedemann syndrome depending on molecular genetic subgroups
American journal of medical genetics. Part A, 2016-09, Vol.170A (9), p.2248-2260
Maas, Saskia M.
Vansenne, Fleur
Kadouch, Daniel J. M.
Ibrahim, Abdulla
Bliek, Jet
Hopman, Saskia
Mannens, Marcel M.
Merks, Johannes H. M.
Maher, Eamonn R.
Hennekam, Raoul C.
2016
Details
Autor(en) / Beteiligte
Maas, Saskia M.
Vansenne, Fleur
Kadouch, Daniel J. M.
Ibrahim, Abdulla
Bliek, Jet
Hopman, Saskia
Mannens, Marcel M.
Merks, Johannes H. M.
Maher, Eamonn R.
Hennekam, Raoul C.
Titel
Phenotype, cancer risk, and surveillance in Beckwith-Wiedemann syndrome depending on molecular genetic subgroups
Ist Teil von
American journal of medical genetics. Part A, 2016-09, Vol.170A (9), p.2248-2260
Ort / Verlag
United States: Blackwell Publishing Ltd
Erscheinungsjahr
2016
Link zum Volltext
Quelle
Wiley Online Library
Beschreibungen/Notizen
Patients with Beckwith–Wiedemann syndrome (BWS) have an increased risk to develop cancer in childhood, especially Wilms tumor and hepatoblastoma. The risk varies depending on the cause of BWS. We obtained clinical and molecular data in our cohort of children with BWS, including tumor occurrences, and correlated phenotype and genotype. We obtained similar data from larger cohorts reported in the literature. Phenotype, genotype and tumor occurrence were available in 229 of our own patients. Minor differences in phenotype existed depending on genotype/epigenotype, similar to earlier studies. By adding patients from the literature, we obtained data on genotype and tumor occurrence of in total 1,971 BWS patients. Tumor risks were highest in the IC1 (H19/IGF2:IG‐DMR) hypermethylation subgroup (28%) and pUPD subgroup (16%) and were lower in the KCNQ1OT1:TSS‐DMR (IC2) subgroup (2.6%), CDKN1C (6.9%) subgroup, and the group in whom no molecular defect was detectable (6.7%). Wilms tumors (median age 24 months) were frequent in the IC1 (24%) and pUPD (7.9%) subgroups. Hepatoblastoma occurred mostly in the pUPD (3.5%) and IC2 (0.7%) subgroups, never in the IC1 and CDKN1C subgroups, and always before 30 months of age. In the CDKN1C subgroup 2.8% of patients developed neuroblastoma. We conclude tumor risks in BWS differ markedly depending on molecular background. We propose a differentiated surveillance protocol, based on tumor risks in the various molecular subgroups causing BWS. © 2016 Wiley Periodicals, Inc.
Sprache
Englisch
Identifikatoren
ISSN: 1552-4825
eISSN: 1552-4833
DOI: 10.1002/ajmg.a.37801
Titel-ID: cdi_proquest_miscellaneous_1815704759
Format
–
Schlagworte
Adolescent
,
Beckwith-Wiedemann Syndrome - diagnosis
,
Beckwith-Wiedemann Syndrome - epidemiology
,
Beckwith-Wiedemann Syndrome - genetics
,
Child
,
Cohort Studies
,
DNA Methylation
,
Female
,
Genetic Association Studies
,
Genomic Imprinting
,
genotype-phenotype correlation
,
hepatoblastoma
,
Hepatoblastoma - epidemiology
,
Hepatoblastoma - etiology
,
Humans
,
Insulin-Like Growth Factor II - genetics
,
Male
,
Minisatellite Repeats
,
Neoplasms - epidemiology
,
Neoplasms - etiology
,
neuroblastoma
,
Phenotype
,
Population Surveillance
,
Potassium Channels, Voltage-Gated - genetics
,
Risk
,
RNA, Long Noncoding - genetics
,
Wiedemann-Beckwith syndrome
,
Wilms tumor
,
Wilms Tumor - epidemiology
,
Wilms Tumor - etiology
,
Young Adult
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