Esin KOTİLOĞLU, HANDAN KAYA, Saime SEZGİN, Gülsün EKİCİOĞLU

The role of basıc fibroblast growth factor receptor (bFGF) and C-kit receptor in progression of cutaneous melanocytic lesions

Anahtar Kelimeler:

Proto-onkojen protein c-kit, Nevüs, pigmente, Melanom, Fibroblast büyüme faktörleri

Objective: We investigated the expression of basic Fibroblast Growth Factor (bFGF) and c-kit proto-oncogene in progression to malignancy and métastases of melanocytic lesions. Methods: lmmunohistochemical detection of bFGF and c-kit receptors were performed by peroxidase- antiperoxidase (PAP) technique on compound nevi, vertical growth phase malignant melanoma and metastatic malignant melanoma in 12, 12 and 15 cases respectively. Clinicopathological correlations were analysed by Paerson's Chi-Square, Student's T-Test and One Way Anova test. Results: bFGF receptor immunoreactivity rates were 83.3%, 83.3% and 80 % in compound nevi, primary MMs and metastatic MMs respectively, c-kit immunoreactivity was absent in nevus cells, but faintly present in 16.6 % (2 cases) of MM cells. Conclusion: The results of our study suggest that loss of c-kit expression is more important in dermal penetration than métastases in melanomas.However, bFGF is not shown to be a prognostic factor for MMs.

Keywords:

Proto-Oncogene Protein c-kit, Nevus, Pigmented, Melanoma, Fibroblast Growth Factors,

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