Analysis of the p53 gene by PCR-SSCP in ten cases of WilmsÆ tumor
São Paulo med. j
; 118(2): 49-52, Mar. 2000. ilus, tab
Article
em En
| LILACS
| ID: lil-289850
Biblioteca responsável:
BR1.1
ABSTRACT
CONTEXT Mutations of the p53 tumor suppressor gene are the most frequent alterations observed in human neoplasias affecting adults. In pediatric oncology, however, they have seldom been identified. WilmsÆ tumor is a renal neoplasia commonly occurring in children and is associated with mutations of the WT1 gene. The correlation between WilmsÆ tumor and alterations of the p53 gene has not been well established, with a low frequency of mutations having been reported in this type of tumor. Mutation may be associated with advanced stage disease and unfavorable histology. OBJECTIVE:
To screen for mutations of the p53 gene by the PCR-SSCP method and DNA sequencing in cases of WilmsÆ tumor sug-gestive of mutation.DESIGN:
Case Report. CASE REPORT Evaluations of exons 5-9 of the p53 gene in DNA samples extracted by PCR-SSCP from 10 WilmsÆ tumors in children at different stages, and DNA sequencing. Changes in SSCP analy-sis were observed in exon 8 in two samples. The probable muta-tions were not confirmed by DNA sequencing. The absence of point mutations in p53 gene observed in the 10 samples of WilmsÆ tumor studied agrees with literature data, with DNA sequencing being of fundamental importance for the confirmation of possible mutations
Texto completo:
1
Índice:
LILACS
Assunto principal:
Genes p53
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Tumor de Wilms
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Neoplasias Renais
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Mutação
Limite:
Child
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Child, preschool
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Female
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Humans
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Infant
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Male
Idioma:
En
Revista:
São Paulo med. j
Assunto da revista:
Cirurgia Geral
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Cincia
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Ginecologia
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MEDICINA
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Medicina Interna
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Obstetr¡cia
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Pediatria
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Sa£de Mental
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Sa£de P£blica
Ano de publicação:
2000
Tipo de documento:
Article