Aqueous Extracts of Rhizopus oryzae Induce Apoptosis in Human Promyelocytic Leukemia Cell Line HL-60
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概要
- 論文の詳細を見る
Protection against in vivo infection with Salmonella and enhancement of in vitro superoxide production by peripheral blood neutrophils are two reported effects of treatment with aqueous extracts of the fungus Rhizopus oryzae U-1 (Aq-ROU). Here, we report that Aq-ROU also has antiproliferative activity and can induce apoptosis in a human promyelocytic leukemia cell line, HL-60. During Aq-ROU-induced apoptosis, HL-60 cells undergo genomic DNA fragmentation characteristic of apoptosis after just 6 hr of treatment. Using phos-phatidylserine (PS) as an indicator of apoptosis, we also found that the proportion of apoptotic cells increased significantly after 9hr of treatment. Indeed, induction of apoptosis by Aq-ROU reached 43.3% after 24hr of treatment, which is comparable to the effects of a known apoptosis-inducer, actinomycin D. Moreover, the activities of caspase-3, -8, and -9 increased in parallel with Aq-ROU treatment, with a peak of activity 9hr after the initial treatment. Taken together, the results suggest that R. oryzae contains one or more water-soluble factor that can reliably and efficiently induce apoptosis in human cells via activation of caspase-3.
- 公益社団法人日本薬学会の論文
- 2007-12-01
著者
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Suzuki Takehito
鹿児島大学 臨床獣医学
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Susa Takao
明治大学 農学部生命科学科
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Fukuoka Hideo
School of Veterinary Medicine
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Suzuki Takehito
School Of Veterinary Medicine Azabu University
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Morita Hidetoshi
School Of Veterinary Medicine Azabu University
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Fukuoka Hideo
School Of Veterinary Medicine Azabu University
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Ushikoshi Setsuo
Ushikoshi Research Institute for Physiology
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Morita Hidetoshi
School Of Veterinary Medicine Azabu Univ.
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