- 著者
- 木島 孝夫 高崎 みどり 小塚 睦夫 徳田 春邦
- 出版者
- 公益社団法人 日本薬学会
- 雑誌
- YAKUGAKU ZASSHI (ISSN:00316903)
- 巻号頁・発行日
- vol.114, no.4, pp.248-256, 1994-04-25 (Released:2008-05-30)
- 参考文献数
- 27
- 被引用文献数
- 1 2
To search for possible anti-tumor promoters, we carried out a primary screening of fourteen kampo prescriptions utilizing their possible inhibitory effects on the Epstein-Barr virus early antigen (EBV-EA) activation which is induced by 12-O-tetradecanoylphorbol-13-acetate (TPA). In these prescriptions, shouseiryu-to exhibited the most significant inhibitory effect on the EBV-EA activation. Furtheremore, two-stage carcinogenesis of mouse skin tumors induced by 7, 12-dimethylbenz [α] anthracene (DMBA) and TPA, and mouse pulmonary tumors induced by 4-nitroquinoline-N-oxide (4NQO) and glycerol were strongly inhibited by shouseiryu-to.
- 著者
- 津島 己幸 真岡 孝至 勝山 政明 小塚 睦夫 松野 隆男 徳田 春邦 西野 輔翼 岩島 昭夫
- 出版者
- 公益社団法人日本薬学会
- 雑誌
- Biological and Pharmaceutical Bulletin (ISSN:09186158)
- 巻号頁・発行日
- vol.18, no.2, pp.227-233, 1995-02-15 (Released:2008-04-10)
- 参考文献数
- 26
- 被引用文献数
- 43 77
As a screening study for anti-tumor promoters, 51 carotenoids with diverse structures were examined for their inhibitory effects on the Epstein-Barr virus activation activity of 12-O-tetradecanoylphorbol-13-acetate (TPA) in Raji cells. The results showed that most of the carotenoids exhibited inhibitory activity, and in general, no cytotoxicity on Raji cells was observed in the assay. Among the carotenoids, β-cryptoxanthin, lutein, and lactucaxanthin showed the strongest inhibitory activity, superior to the well known anti-tumor promoter, β-carotene. Heteroxanthin, peridinin, and halocynthiaxanthin showed cytotoxicity at the high concentration (1000 molar ratio per TPA), but indicated a strong inhibitory effect at the lower concentrations, which were only weakly toxic (500 and 100 molar ratios). Based on these results, the essential moiety for the activity of carotenoids was considered to be the 3-hydroxy-ε-end group.