NAGA and melanoma: To study the effect of CcPh on the activity of α-NaGalase, we chose the human duodenal adenocarcinoma HuTu 80 and melanoma SK-MEL-28 cell lines and used two assays: the first was the treatment of cells with the CcPh fraction (in vitro), while the second was the direct treatment of α-NaGalase isolated from cell lysates with the CcPh fraction.