영지버섯 균사체 ( Ganoderma lucidum IYO09)로부터 추출한 단백다당체의 전이암 억제 효과

Antimetastatic Effect of Proteoglycan Isolated from the Mycelium of Ganoderma lucidumIYO09 in vitro and in vivo

β-Immunan, a proteoglycan, was isolated from the mycelium of Ganoderma lucidum which belongs to a medicinal mushroom. The effects of β-Immunan on cell- cell and cell-matrix interactions mediated by carbohydrate-recognition and the mechanism responsible for the inhibition of experimental metastasis of Bl6-FIO and B16/BL6 murine melanoma were studied. The results showed that Ganoderma lucidum-Immunan inhibited Bl6-Fl melanoma cell's adhesion to laminin and asialofetuin-induced homotypic aggregation and reduced invasion against Bl6-FIO murine melanoma cells through matrigel in vitro assay: When β-Immunan was intraperitoneally administrated to C57BL/6 mice bearing B16/BL6 murine melanoma cells, it was decreased the number of pulmonary metastatic colony by the dose dependent manner ranging from 20 to 100 mg/kg/day, The results indirectly indicate that clinical treatment with β-Immunan might be expected to exhibit anti-metastatic effect. In the put-monary metastasis, the number of pulmonary metastatic colony of melanoma when β-Immunan was intraperitoneally aduunistrated to C57BL/6 mice bearing Bla/BL6 murine melanoma cells by intravenous injection were decreased by the dose dependent manner ranging from 20 to 100 mg/kg/day.