Indian Journal of Pathology and Microbiology
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Year : 2006  |  Volume : 49  |  Issue : 4  |  Page : 535-9

Does c-erbB-2 expression have a role in medulloblastoma prognosis?

Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012

Correspondence Address:
Munita Meenu Bal
Department of Histopathology, Post Graduate Institute of Medical Education and Research, Chandigarh 160012

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Source of Support: None, Conflict of Interest: None

PMID: 17183845

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The prognosis of patients with medulloblastoma has remained same for the last two decades. This study evaluated the role of c-erbB-2 expression in medulloblastoma as a prognostic marker. Fifty cases of medulloblastomas were investigated for the expression of c-erbB-2 protein using immunohistochemistry. The expression of c-erbB-2 was correlated with age, histology and disease-free survival (DFS). Thirty-five (70%) tumors were c-erbB-2 positive. Immunoreactivity for c-erbB-2 receptor was observed as mixed cytoplasmic and membrane positivity of tumour cells. The mean DFS in c-erbB-2 positive cases was 19.81 months compared to 48.33 months in c-erbB-2 negative cases. c-erbB-2 positivity was found to be an independent predictor of poor outcome in medulloblastoma (p value < 0.05). No correlation of c-erbB-2 expression was observed with the age of patient and the histological type of tumour. Additionally, c-erbB-4 expression was also evaluated in these tumours. Thirty-three cases showed co-expression of c-erbB-2 and c-erbB-4 proteins. However, c-erbB-4 expression alone was not associated with poor outcome, whereas its co-expression with c-erbB-2 was associated with shorter DFS (p < 0.05).

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