향나무 추출물의 Galectin-3 저해에 의한 암 전이 억제 효과 = Anti-Metastatic Activity of Juniperus chinensis Extract by Galectin-3 Inhibition

다국어 초록 (Multilingual Abstract)

The purpose of this study was to examine the anti-metastatic effect of Juniperus chinensis extract by inhibition of galectin-3 expression. For this study, we carried out the experiment of galectin-3 expression assay and in vivo metastasis mouse model bearing colon 26-M3.1 lung carcinoma, and also MMP-1, MMP-2 and MMP-9 inhibitory assays relating metastasis mechanism. J. chinensis extract significantly showed the inhibitory effect of basal expression and MNNG-induced expression of galectin-3 in colon 26-M3.1 lung carcinoma at the all tested doses (5, 50 and 500 ㎍/㎖). In case of the inhibition of MMP-1, MMP-2 and MMP-9, the weak activity was showed at the doses of 50 and 500 ㎍/㎖ and was not detected at the dose of 5 ㎍/㎖. However, J. chinensis extract significantly showed the anti-metastatic activity on mouse mode bearing colon 26-M3.1 lung carcinoma. Therefore, this study strongly suggests that J. chinensis is a potent inhibitor of galectin-3 expression, and holds great promise for use in inhibiting metastasis induced by elevated expression of galectin-3.

국문 초록 (Abstract)

향나무 에탄올 추출물에 대한 암 전이 억제 효과를 측정하기 위하여 세포 수준에서 암 전이에 밀접히 관련되어 있는galectin-3에 대한 억제 효과를 colon 26-M3.1 lung carcinoma 에서 측정하였다. 향나무 추출물 5 ㎍/㎖, 50 ㎍/㎖ 및 500 ㎍/㎖ 처리 시, 농도 의존적으로 galectin-3에 대한 저해 효과를나타내었다. 한편, 암 전이 관련 있는 또 다른 단백질로 MMP 효소에 대한 직접적인 억제효과를 측정한 결과, 향나무 추출물 5 ㎍/㎖, 50 ㎍/㎖ 및 500 ㎍/㎖ 처리 시 직접적으로 MMP-1,MMP-2 및 MMP-9 효소에 대해서 농도의존적인 저해 효과는 나타났으나, 강한 활성으로 평가되지는 못하였다. Colon 26-M3.1lung carcinoma을 이용한 in vivo mouse 모델에서 향나무 추출은 농도 의존적으로 전이 억제 효과를 나타내었고, MMP-2활성화 물질인 relaxin과 병용투여 시, relaxin의 기능에 영향을 받지 않는 것으로 나타났다. 따라서 in vivo mouse 모델에서 나타난 암 전이 억제 효과는 galectin-3 저해로 인한 효과로 사료된다.

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