Studies on cancer chemoprevention by traditional folk medicines XXIV. Inhibitory effect of a coumarin derivative, 7-isopentenyloxycoumarin, against tumor-promotion.

نویسندگان

  • Masaki Baba
  • Yongri Jin
  • Atsuo Mizuno
  • Hisaya Suzuki
  • Yoshihito Okada
  • Nobuo Takasuka
  • Harukuni Tokuda
  • Hoyoku Nishino
  • Toru Okuyama
چکیده

7-Isopentenyloxycoumarin (1) was isolated from Heracleum lanatum MICHX. (Umbelliferae). Compound 1 inhibited phospholipid metabolism and Epstein-Barr virus activation caused by a potent tumor promoter. In an in vivo experiment, topical application of 1 suppressed skin-tumor-formation induced by 12-O-tetradecanoylphorbol-13-acetate (TPA) in 7,12-dimethylbenz[a]anthracene (DMBA) initiated mice. And it also suppressed ornithine decarboxylase activity stimulated by TPA on mouse skin. These results indicated that 7-isopentenyloxycoumarin is one of the effective compounds from natural resources for treating skin tumor formation.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Promising Compounds From Murraya exotica for Cancer Metastasis Chemoprevention

Most of the present anticancer drugs are highly cytotoxic and focus mainly on killing tumor cells rather than slowing the progress of cancer metastasis. Evidence has been reported that bridges the mechanisms of inflammation and tumor invasion. Therefore, we evaluated the potency in cancer metastasis chemoprevention of compounds and a coumarin extracted from Murraya exotica, which is known for i...

متن کامل

Inhibitory effect of Zizyphus extract on fungal infection

Cutaneous fungal infections remain a clinical problem. Among fungi, dermatophyte molds are the major cause of various type of Tinea. These infections are still difficult to manage and some of the antifungal agent are poorly tolerated or have been associated with emergence of resistance. The traditional methods, especially the use of medicinal plants place an imperative role to cover the basic h...

متن کامل

Inhibitory effect of Zizyphus extract on fungal infection

Cutaneous fungal infections remain a clinical problem. Among fungi, dermatophyte molds are the major cause of various type of Tinea. These infections are still difficult to manage and some of the antifungal agent are poorly tolerated or have been associated with emergence of resistance. The traditional methods, especially the use of medicinal plants place an imperative role to cover the basic h...

متن کامل

[Chemical study of citrus plants in the search for cancer chemopreventive agents].

The constituents of Citrus plants were investigated to develop useful agents that are effective in cancer chemoprevention. We examined the roots and bark of the roots of various Citrus plants, resulting in the isolation of many novel compounds. Their structures were determined using spectroscopic methods, especially 2D-NMR spectra. The following new compounds of constituents were found: dimeric...

متن کامل

Inhibition of breast cancer cell motility with a non-cyclooxygenase inhibitory derivative of sulindac by suppressing TGFβ/miR-21 signaling

Compelling efficacy on intervention of tumorigenesis by nonsteroidal anti-inflammatory drugs (NSAIDs) has been documented intensively. However, the toxicities related to cyclooxygenase (COX) inhibition resulting in suppression of physiologically important prostaglandins limit their clinical use for human cancer chemoprevention. A novel derivative of the NSAID sulindac sulfide (SS), referred as ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • Biological & pharmaceutical bulletin

دوره 25 2  شماره 

صفحات  -

تاریخ انتشار 2002