It is known that liquorice root is rich in compounds which exert several pharmacological actions. In the present study, we evaluated the effect of glycyrrhizin (the main constituent of liquorice root) and of its metabolite aglycone, 18 beta-glycyrrhetinic acid, on UVB-irradiated human melanoma cells: SKMEL-2 from metastatic tissue and SKMEL-28 from primary malignant melanoma. Tests performed (Trypan blue exclusion test, MTT and Western blot) showed that glycyrrhizin is not toxic for both types of cells. In SKMEL-28 cells, Bcl-2 expression was low after UVB irradiation, but it was increased when treated with glycyrrhizin. On the contrary, in the SKMEL-2 cell culture, Bcl-2 expression was not modified by the substances under study. The results show that g cyrrhizin treatment might offer protection from the damage induced in humans by UVB radiation, while it seems to be ineffective on metastatic cells. Further studies must be performed to understand the mechanism of the protective effect.

Effects of glycyrrhizin on UVB-irradiated melanoma cells / Rossi, Tiziana; Benassi, Luisa; Magnoni, Cristina; Ruberto, Ippazio Antonio; A., Coppi; Baggio, Giosuè Gabriele. - In: IN VIVO. - ISSN 0258-851X. - STAMPA. - 19:(2005), pp. 319-322.

Effects of glycyrrhizin on UVB-irradiated melanoma cells

ROSSI, Tiziana;BENASSI, Luisa;MAGNONI, Cristina;RUBERTO, Ippazio Antonio;BAGGIO, Giosuè Gabriele
2005

Abstract

It is known that liquorice root is rich in compounds which exert several pharmacological actions. In the present study, we evaluated the effect of glycyrrhizin (the main constituent of liquorice root) and of its metabolite aglycone, 18 beta-glycyrrhetinic acid, on UVB-irradiated human melanoma cells: SKMEL-2 from metastatic tissue and SKMEL-28 from primary malignant melanoma. Tests performed (Trypan blue exclusion test, MTT and Western blot) showed that glycyrrhizin is not toxic for both types of cells. In SKMEL-28 cells, Bcl-2 expression was low after UVB irradiation, but it was increased when treated with glycyrrhizin. On the contrary, in the SKMEL-2 cell culture, Bcl-2 expression was not modified by the substances under study. The results show that g cyrrhizin treatment might offer protection from the damage induced in humans by UVB radiation, while it seems to be ineffective on metastatic cells. Further studies must be performed to understand the mechanism of the protective effect.
2005
19
319
322
Effects of glycyrrhizin on UVB-irradiated melanoma cells / Rossi, Tiziana; Benassi, Luisa; Magnoni, Cristina; Ruberto, Ippazio Antonio; A., Coppi; Baggio, Giosuè Gabriele. - In: IN VIVO. - ISSN 0258-851X. - STAMPA. - 19:(2005), pp. 319-322.
Rossi, Tiziana; Benassi, Luisa; Magnoni, Cristina; Ruberto, Ippazio Antonio; A., Coppi; Baggio, Giosuè Gabriele
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/307063
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