期刊
JOURNAL OF NATURAL PRODUCTS
卷 65, 期 5, 页码 677-680出版社
AMER CHEMICAL SOC
DOI: 10.1021/np0106337
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资金
- NCI NIH HHS [P01 CA48112] Funding Source: Medline
Thirty-seven naturally occurring withanolides (1-37), previously isolated in our laboratories, were evaluated for their potential to induce quinone reductase with cultured murine hepatoma cells (Hepa 1c1c7). Spiranoid (29, 32) and 18-functionalized withanolides (2-5, 7-9, 24) were found to be potent inducers of the enzyme, while 5alpha-substituted derivatives exhibited weak activity. Preliminary studies were performed with compound 29 to evaluate enzyme-inducing capacity in multiple organ sites of BALB/c mice. Significant induction was observed in liver and colon, but not in lung, stomach, or mammary gland.
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