著者

Hiroshi SASAKI Tomoyoshi HOSOKAWA Yoshiharu NAWATA Kunio ANDO

出版者

Japan Society for Bioscience, Biotechnology, and Agrochemistry

雑誌

Agricultural and Biological Chemistry (ISSN:00021369)

巻号頁・発行日

vol.38, no.8, pp.1463-1466, 1974 (Released:2008-11-27)

参考文献数

11

被引用文献数

6

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Ascochlorin and its analogs were isolated from the filter cake of the fermented broth of a fungus, Ascochyta viciae Libert; the compounds obtained were ascochlorin, LL-Z1272δ, LL-Z1272 ε, ascofuranone, ascofuranol and a new analog, C23H31ClO5. Some of these prenyl phenols show hypolipidemic activity in both normolipidemic and hyperlipidemic rats. Details of the structure determination for ascochlorin are presented. The structure of the new analog was elucidated as 4'-hydroxy-5'-hydroascochlorin.

著者

MIKIO SAWADA TOMOYOSHI HOSOKAWA TSUNEO OKUTOMI KUNIO ANDO

出版者

JAPAN ANTIBIOTICS RESEARCH ASSOCIATION

雑誌

The Journal of Antibiotics (ISSN:00218820)

巻号頁・発行日

vol.26, no.11, pp.681-686, 1973-11-25 (Released:2006-04-12)

参考文献数

15

被引用文献数

24 28

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Ascofuranone significantly reduced serum lipid levels of rats fed with normal diet 6 hours after a single oral administration of 108 mg/kg. When the antibiotic was orally given for consecutive 10 days to normolipidemic rats, the treatment resulted in marked reduction of serum cholesterol, triglycerides, phospholipids and free fatty acids without affecting organ weight gain, serum total protein, albumin/globulin ratio and serum transaminases. Reduction was also noted with cardiac cholesterol content but liver total sterol and fecal sterol excretion were unchanged. Acute toxicity of ascofuranone is weak to mice and rats and the antibiotic did not induce hepatomegaly which is the main side effect of a positive control agent, ethyl-p-chlorophenoxyisobutyrate.

著者

JUNJI MAGAE JUNICHI HAYASAKI YUKO MATSUDA MITSUYUKI HOTTA TOMOYOSHI HOSOKAWA SEIKICHI SUZUKI KAZUO NAGAI KUNIO ANDO GAKUZO TAMURA

出版者

JAPAN ANTIBIOTICS RESEARCH ASSOCIATION

雑誌

The Journal of Antibiotics (ISSN:00218820)

巻号頁・発行日

vol.41, no.7, pp.959-965, 1988-07-25 (Released:2006-04-19)

参考文献数

20

被引用文献数

34 41

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Ascofuranone demonstrated antitumor activity against FM3A murine mammary carcinoma, implanted in the peritoneal cavity of syngeneic mice, C3H/He. It was more effective by treatment prior to implantation than by that after implantation. Treatment with ascofuranone also increased splenic cytotoxicity and phagocytic activity of host animal cells. Moreover, ascofuranone induced inflammatory cells in the peritoneal cavity which are mainly composed of polymorpho-nuclear leukocytes and macrophages. These cells are more potent in cytotoxicity against FM3A cells than with resident peritoneal cells. The antitumor activity of ascofuranone was suppressed by ip administration of silica, just prior to tumor implantation. These results suggest that the prophylactic antitumor activity of ascofuranone is expressed through the activation of phagocytes. Ascofuranone also suppressed pulmonary metastasis of B16 melanoma and Lewis lung carcinoma. Treatment after tumor implantaion failed to suppress the metastasis. Single treatment of ascofuranone 4 days prior to implantation decreased the metastasis of Lewis lung carcinoma but not that of B16, whereas single treatment of ascofuranone 24 hours prior to the tumor implantation decreased the metastasis of B16 but not that of Lewis lung carcinoma.

著者

HIROSHI SASAKI TOMOYOSHI HOSOKAWA MIKIO SAWADA KUNIO ANDO

出版者

JAPAN ANTIBIOTICS RESEARCH ASSOCIATION

雑誌

The Journal of Antibiotics (ISSN:00218820)

巻号頁・発行日

vol.26, no.11, pp.676-680, 1973-11-25 (Released:2006-04-12)

参考文献数

15

被引用文献数

43 67

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A new antibiotic with hypolipidemic activity, ascofuranone, C23H29C1O5, and related substance, ascofuranol, C23H31C1O5, were isolated from the filter cake of the fermented broth of Ascochyta viciae LIBERT, an ascochlorin-producing fungus, and their structures were elucidated. They possess 3-substituted-5-chloro-orcylaldehyde moiety with novel sesquiterpenyl side chains.