The effect of isochromosome 17q presence, proliferative and apoptotic indices, expression of c-erbB-2, bcl-2 and p53 proteins on the prognosis of medulloblastoma.
10.3346/jkms.2000.15.4.452
- Author:
Do Hyun NAM
1
;
Kyu Chang WANG
;
Yoen Mee KIM
;
Je G CHI
;
Seung Ki KIM
;
Byung Kyu CHO
Author Information
1. Division of Pediatric Neurosurgery, Seoul National University Children's Hospital and Neurological Research Institute, SNUMRC, Korea.
- Publication Type:Original Article ; Comparative Study ; Research Support, Non-U.S. Gov't
- Keywords:
Medulloblastoma;
Chromosomes, Human, Pair17;
Ki-67 antigen;
Apoptosis;
Protein p53;
Prognosis
- MeSH:
Adolescence;
Apoptosis;
Brain Neoplasms/pathology;
Brain Neoplasms/mortality;
Brain Neoplasms/genetics+ACo-;
Cell Division;
Child;
Child, Preschool;
Chromosomes, Human, Pair 17/ultrastructure+ACo-;
Chromosomes, Human, Pair 17/genetics;
Comparative Study;
Disease-Free Survival;
Female;
Follow-Up Studies;
Genes, bcl-2+ACo-;
Genes, erbB-2+ACo-;
Genes, p53+ACo-;
Human;
In Situ Hybridization, Fluorescence;
In Situ Nick-End Labeling;
Infant;
Ki-67 Antigen/analysis;
Male;
Medulloblastoma/pathology;
Medulloblastoma/mortality;
Medulloblastoma/genetics+ACo-;
Neoplasm Proteins/analysis;
Prognosis;
Retrospective Studies;
Survival Analysis;
Treatment Outcome
- From:Journal of Korean Medical Science
2000;15(4):452-456
- CountryRepublic of Korea
- Language:English
-
Abstract:
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.
