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1.
Journal of Korean Medical Science ; : 452-456, 2000.
Artigo em Inglês | WPRIM | ID: wpr-135348

RESUMO

Medulloblastoma accounts for 20 to 25+ACU- of all intracranial neoplasms in children. The significance of the presence of isochromosome 17q (i(17q)), proliferative potential, apoptotic activity, and expression of c-erbB-2, bd-2, and p53 proteins in predicting long-term survival of patients with medulloblastomas was investigated. Twenty children were divided into two groups (favorable and poor outcome groups). Ten children with favorable outcome (FO) were disease-free during the follow-up period (median: 61.5 months). The other ten children with poor outcome (PO) died of disease progression, having a median survival of 18 months. Fluorescent in situ hybridization (FISH) for i(17q), terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL), and immunohistochemistry for Ki-67, c-erbB-2, bcl-2, and p53 proteins was performed in these patients. Nine out of 17 children showed i(17q). There was no difference in the rate of positive i(17q) between the FO and PO groups. The presence of i(17q) was not significantly related to biological factors that we investigated. Unlike the prominent presence of the proliferative potential and p53 expression in children with PO, apoptotic activity and expression of c-erbB-2 and bcl-2 had no correlation with the outcome.


Assuntos
Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Adolescente , Apoptose , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/mortalidade , Neoplasias Encefálicas , Divisão Celular , Cromossomos Humanos Par 17 , Cromossomos Humanos Par 17/genética , Estudo Comparativo , Intervalo Livre de Doença , Seguimentos , Hibridização in Situ Fluorescente , Marcação In Situ das Extremidades Cortadas , Antígeno Ki-67/análise , Meduloblastoma/patologia , Meduloblastoma/mortalidade , Meduloblastoma , Proteínas de Neoplasias/análise , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
2.
Journal of Korean Medical Science ; : 452-456, 2000.
Artigo em Inglês | WPRIM | ID: wpr-135345

RESUMO

Medulloblastoma accounts for 20 to 25+ACU- of all intracranial neoplasms in children. The significance of the presence of isochromosome 17q (i(17q)), proliferative potential, apoptotic activity, and expression of c-erbB-2, bd-2, and p53 proteins in predicting long-term survival of patients with medulloblastomas was investigated. Twenty children were divided into two groups (favorable and poor outcome groups). Ten children with favorable outcome (FO) were disease-free during the follow-up period (median: 61.5 months). The other ten children with poor outcome (PO) died of disease progression, having a median survival of 18 months. Fluorescent in situ hybridization (FISH) for i(17q), terminal deoxynucleotidyl transferase-mediated dUTP-biotin nick end labeling (TUNEL), and immunohistochemistry for Ki-67, c-erbB-2, bcl-2, and p53 proteins was performed in these patients. Nine out of 17 children showed i(17q). There was no difference in the rate of positive i(17q) between the FO and PO groups. The presence of i(17q) was not significantly related to biological factors that we investigated. Unlike the prominent presence of the proliferative potential and p53 expression in children with PO, apoptotic activity and expression of c-erbB-2 and bcl-2 had no correlation with the outcome.


Assuntos
Criança , Pré-Escolar , Feminino , Humanos , Lactente , Masculino , Adolescente , Apoptose , Neoplasias Encefálicas/patologia , Neoplasias Encefálicas/mortalidade , Neoplasias Encefálicas , Divisão Celular , Cromossomos Humanos Par 17 , Cromossomos Humanos Par 17/genética , Estudo Comparativo , Intervalo Livre de Doença , Seguimentos , Hibridização in Situ Fluorescente , Marcação In Situ das Extremidades Cortadas , Antígeno Ki-67/análise , Meduloblastoma/patologia , Meduloblastoma/mortalidade , Meduloblastoma , Proteínas de Neoplasias/análise , Prognóstico , Estudos Retrospectivos , Análise de Sobrevida , Resultado do Tratamento
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