PMID: 11920494Mar 29, 2002Paper

ErbB2 expression is correlated with increased survival of patients with osteosarcoma

Cancer
Tomohiro AkatsukaSeiichi Ishii

Abstract

Elevated ErbB2 expression and gene amplification have been shown to be associated with poor prognosis in many cancers. Recently, it has been demonstrated that overexpression of ErbB2 protein in osteosarcoma is associated with the presence of pulmonary metastasis and decreased survival. By contrast, a previous study showed that the expression of ErbB2 declines in individual osteosarcomas as they become metastatic. In the current study, the authors determined the relation between ErbB2 status and outcome in a large number of selected patients with high-grade osteosarcoma. ErbB2 status was determined immunohistochemically in biopsy specimens of osteosarcoma of the extremities from 81 patients who were treated with surgery and chemotherapy. None of the patients had metastatic disease at presentation (Stage II), and all were followed-up for at least five years. The ErbB2 status was analyzed in relation to the lengths of event-free and overall survival. Of the 81 tumors examined, 51 (61%) demonstrated high levels of ErbB2 expression. The presence of increased levels of ErbB2 in osteosarcoma was significantly associated with the increased probability of event-free (72.2% v. 45.6% at 5 years, P = 0.03) and overall survival (79.7% v. 58...Continue Reading

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