Comparative genomic hybridization analysis of pediatric adamantinomatous craniopharyngiomas and a review of the literature

Comparative genomic hybridization analysis of pediatric adamantinomatous craniopharyngiomas and a review of the literature

Author Yoshimoto, Maisa Google Scholar
De Toledo, Silvia Regina Caminada Google Scholar
Da Silva, Nasjla Saba Google Scholar
Bayani, Jane Google Scholar
Bertozzi, Ana Paula Antunes Pascalicchio Google Scholar
Stavale, João Norberto Google Scholar
Cavalheiro, Sergio Google Scholar
Andrade, Joyce Anderson Duffles Google Scholar
Zielenska, Maria Google Scholar
Squire, Jeremy A. Google Scholar
Institution Hosp Sick Children
Univ Toronto
Ontario Canc Inst
Universidade Federal de São Paulo (UNIFESP)
Abstract Object. The purpose of this study was to examine chromosomal gains and losses in 11 pediatric adamantinomatous craniopharyngiomas by using comparative genomic hybridization (CGH), as well as to review the cytogenetic literature that has contributed to the characterization of these tumors. One Source of confusion in the cytogenetic and CGH literature concerning craniopharyngioma is that the authors of most studies fail to distinguish between pediatric and later-onset forms of the disease. Thus, this study was focused on pediatric craniopharyngioma.Methods. To determine an overview of the genetic events leading to the development of these tumors, 10 adamantinomatous craniopharyngiomas were analyzed using CGH; none of the tumor specimens demonstrated gains or losses of DNA sequence.Conclusions. In view of these findings as well as those published in the majority of previous cytogenetic studies of craniopharyngiomas, the authors conclude that the recurrent acquisition of chromosomal imbalances does not play a major role in tumorigenesis and that chromosomal gains and losses are a relatively rare event in primary tumors of pediatric origin.
Keywords craniopharyngioma
cytogenetics
comparative genomic hybridization
genetic instability
pediatric neurosurgery
Language English
Date 2004-08-01
Published in Journal Of Neurosurgery: Pediatrics. Charlottesville: Amer Assoc Neurological Surgeons, v. 101, n. 2, p. 85-90, 2004.
ISSN 0022-3085 (Sherpa/Romeo, impact factor)
Publisher Amer Assoc Neurological Surgeons
Extent 85-90
Origin http://dx.doi.org/10.3171/ped.2004.101.2.0085
Access rights Closed access
Type Review
Web of Science ID WOS:000223100100014
URI http://repositorio.unifesp.br/11600/44522

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