Persistence of pierisin-1 activities in the adult cabbage white butterfly, Pieris rapae, during storage after killing
| Autor: | Kikuo Iwabuchi, Yasuko Matsumoto, Tsuyoshi Nakano, Masafumi Yamamoto, Keiji Wakabayashi, Yuko Matsushima-Hibiya, Sugimura T |
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| Jazyk: | angličtina |
| Rok vydání: | 2007 |
| Předmět: |
Veterinary medicine
Larva Pieris brassicae biology fungi General Physics and Astronomy Pieris rapae General Medicine Articles pierisin biology.organism_classification Persistence (computer science) Pupa DNA ADP-ribosylation Pieris (butterfly) Apoptosis Butterfly Botany cytotoxicity General Agricultural and Biological Sciences |
| Zdroj: | Proceedings of the Japan Academy. Series B, Physical and Biological Sciences |
| ISSN: | 1349-2896 0386-2208 |
| Popis: | Crude extracts from larvae, pupae and adults of cabbage white butterflies, Pieris rapae and Pieris brassicae, and green-veined butterfly, Pieris napi, have an ability to induce apoptosis in the human cancer cell lines. As apoptosis inducing protein, pierisin-1 and -2 have been isolated from pupae of P. rapae and P. brassicae, respectively, and shown to exhibit DNA ADP-ribosylating activity. Although the highest activity was detected in the late phase of larvae and early phase of pupae, certain activity was found in adult butterflies. In order to investigate distribution of substances having pierisin-like activities in butterflies, many species need to be analyzed. However, fresh samples of larvae and pupae are hard to obtain, especially if samples are of scarce species or from overseas. The usage of adult butterflies is practical to examine the distribution of pierisin-like activity in many species. In this study, we examined the cytotoxicity of crude extracts from adults of P. rapae against HeLa cells and DNA ADP-ribosylation ability during storage for 1, 2 and 8 weeks at room temperature after killing adult butterflies after eclosion. Body weights decreased to 18% for 8 weeks through dehydration. Cytotoxicity of samples from butterfly kept for 1, 2 and 8 weeks decreased to 47, 39 and 22%, respectively, of the control value. DNA ADP-ribosylating activity of the samples also decreased to 30, 27 and 23%. Similar reduction was observed on western blot analysis with anti-pierisin-1 antibody. Fortunately, these results suggest that cytotoxic and DNA ADP-ribosylating activity persists to some extent in the body after killing, at least for 8 weeks. Thus, butterfly adult samples kept for two months at room temperature can still be useful for examination of the presence of substance having pierisin-like activity. |
| Databáze: | OpenAIRE |
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