Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

8q Deletion in MYCN-amplified Neuroblastoma of a Child Born From Assisted Reproductive Technology

Author(s):
Brassesco, Maria Sol [1] ; Valera, Elvis Terci [2] ; de Oliveira, Fabio Morato [3] ; de Paula Queiroz, Rosane Gomes [4] ; Scrideli, Carlos Alberto [5] ; Sakamoto-Hojo, Elza Tiemi [6] ; Tone, Luiz Gonzaga [7]
Total Authors: 7
Affiliation:
[1] USP. Fac Med Ribeirao Preto
[2] USP. Fac Med Ribeirao Preto
[3] USP. Fac Med Ribeirao Preto
[4] USP. Fac Med Ribeirao Preto
[5] USP. Fac Med Ribeirao Preto
[6] USP. Fac Med Ribeirao Preto
[7] USP. Fac Med Ribeirao Preto
Total Affiliations: 7
Document type: Journal article
Source: JOURNAL OF PEDIATRIC HEMATOLOGY / ONCOLOGY; v. 31, n. 3, p. 215-219, MAR 2009.
Web of Science Citations: 3
Abstract

The occurrence of pediatric cancer in children born from assisted reproductive technologies has been sporadically reported. Chromosomal characterization of the neoplasic disease in this setting is poorly described. In the present study, neuroblastoma cells from a 13-month-old infant boy born after intracytoplasmatic sperm injection were characterized by combining conventional cytogenetics. fluorescence in situ hybridization (FISH), comparative genomic hybridization. and quantitative polymerase chain reaction methods. Cytogenetic analysis of neuroblastoma (NB) metaphase spreads at the time of diagnosis revealed numerous centromere-free extrachromosomal double minutes. suggesting high MYCN amplification. Comparative genomic hybridization analysis demonstrated the amplification of 2q24 similar to pter, with additional gain of the long arm of chromosome 17. Chromosome losses involved 8q, 9q, and 11q. No deletion of 1p was found. MYCN amplification was confirmed by quantitative polymerase chain reaction and fluorescence in situ hybridization analysis. This report describes several chromosomal abnormalities that were present in NB of a child born after intracytoplasmatic sperm injection. Besides some well described and prognostic genetic findings in NB as MYCN amplification, gain on 17q and losses oil 9q and 11q23, we report an unusual deletion involving 8q region in this disease. Whether this genetic abnormality may be associated to assisted reproductive technologies deserves further investigation. (AU)

FAPESP's process: 06/04827-3 - Analysis of aneuploidies by comparative genomic hybridization (CGH) in pediatric patients with acute lymphoid leukemia
Grantee:María Sol Brassesco Annichini
Support Opportunities: Scholarships in Brazil - Post-Doctoral