期刊
JOURNAL OF CANCER RESEARCH AND CLINICAL ONCOLOGY
卷 130, 期 2, 页码 80-86出版社
SPRINGER
DOI: 10.1007/s00432-003-0509-8
关键词
immunohistochemical; melanoma; c-kit; HER-2/neu; VEGF
类别
Purpose. To determine the prevalence and evaluate the possible prognostic value of the molecular targets in malignant melanoma, we studied the overexpression of HER-2/neu, c-Kit, and vascular endothelial growth factor (VEGF) in this patient population. Materials and methods. Overexpression of HER-2/neu, c-Kit, and VEGF was evaluated using immunohistochemical assays in 202 archival tissue specimens. Results. Only two patients (0.9%) revealed HER-2/neu overexpression, whereas 46 (22.8%) revealed c-Kit and 42 (20.8%) specimens showed VEGF overexpression. Multivariate analysis performed did not show a significant difference in survival between c-Kit-positive and c-Kit-negative groups (P=0.36) and VEGF-positive and VEGF-negative groups (P=0.25). Interestingly, c-Kit was more likely to be overexpressed in the superficial spreading type and VEGF was overexpressed preferentially in the amelanotic melanoma type. Conclusions. HER-2/neu has no role in melanogenesis. Both c-Kit (expressed in superficial spreading disease) and VEGF (expressed in amelanotic melanoma) may have significant therapeutic implications as molecular targets, which warrants further investigation.
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