| Budget Amount *help |
¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
The aim of this study is increase of antitumor effect and decrease of adverse effect by liposomes which have high affinity with 67 kDa laminin receptor (67LR). When (-)-epigallocatechin-3-gallate (EGCG) as one of the green tea polyphenol are connected with 67LR, apoptosis is induced on tumor cells. Then we have studied about EGCG modified liposome containing antitumor agent as drug delivery system. It was suggested that this effect was mediated with 67LR needed gallate base in the structure of EGCG. In mice experiment, EGCG-modified liposome rapidly disappeared from the blood circulation after injection. However, EGCG-modifieed liposome with polyethylenglycol (PEG) had long circulation time in blood. Moreover, the cytotoxicity of EGCG-PEG-modified liposome was stronger than EGCG-modified liposome. In conclusion, it was expected that EGCG-PEG-modified liposome increases targeted ability to tumor cells and antitumor activity.
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