Cutaneous melanoma is one of the leading causes of cancer-related death. Malignant transformation of epidermal melanocytes is a multifactorial process involving cell cycle and death control pathways. The purpose of this study was to analyze the immunohistochemical expression of cell-cycle-related and apoptosis-related proteins in cutaneous superficial spreading melanomas using the tissue microarray technique to further understand tumor development. A total of 20 samples of in-situ melanomas and 44 melanomas
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