6r, a novel oxadiazole analogue of ethacrynic acid, exhibits antitumor activity both in vitro and in vivo by induction of cell apoptosis and S-phase arrest - 30/01/13
, Lu-Gang Yu c, Xiu-Li Guo a, ⁎ 
Corresponding author. Fax: +86 531 8838 2490.Corresponding author. Fax: +86 531 8838 2009.Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
| pages | 8 |
| Iconographies | 8 |
| Vidéos | 0 |
| Autres | 0 |
Abstract |
This study investigated the in vitro and in vivo antitumor effects of 5-[2,3-Dichloro-4-(2-methylene-1-oxobutyl) phenoxymethyl]-3-methyl-1,2,4- oxadiazole (6r), a novel ethacrynic acid (EA) derivative. The in vitro effect of 6r on cell proliferation of human colon, leukemia, prostate, lung, breast, ovarian and cervical tumor cell lines was assessed using MTT assay and the in vivo effect was determined with an SW620 xenografts nude mice model. The effect of 6r on expressions of GST P1-1 and apoptosis-related proteins were measured by western blotting and the effect on cell apoptosis was analysed by Hoechst 33258 nuclear staining as well as by cell surface staining of annexin V/propidium iodide. The effect on cell cycle was assessed by flow cytometry. Results showed that 6r inhibit proliferation of a range of human cancer cells in vitro and growth of SW620 tumor xenografts in vivo. The anti-proliferative effect of 6r is associated with cell apoptosis as a result of increased ratio of cellular Bax/bcl-2 expression and subsequent cytochrome-c and caspase-3 activation. Unlike EA, 6r did not show any influence on cellular GST P1-1 expression and its anti-proliferative action was associated with cell cycle arrest in G1/S-phase. In conclusion, 6r has the potential to be developed as a chemotherapeutic agent by induction of cell apoptosis but not regulating GST P1-1.
Le texte complet de cet article est disponible en PDF.Keywords : 5-[2,3-Dichloro-4-(2-methylene-1-oxobutyl) phenoxymethyl]-3-methyl-1,2,4- oxadiazole (6r), Human cancer cell lines, Glutathione S-transferase P1-1, Apoptosis, Cell cycle
Plan
Vol 67 - N° 1
P. 58-65 - février 2013 Retour au numéro
Article précédent
- Foscarnet reduces FGF2-induced proliferation of human umbilical vein endothelial cells and has antineoplastic activity against human anaplastic thyroid carcinoma cells
- Karsten Rose
- Tumor apoptosis in prostate cancer by PGD2 and its metabolite 15d-PGJ2 in murine model
- Masaki Nakamura, Hideyasu Tsumura, Takefumi Satoh, Kazumasa Matsumoto, Hiroko Maruyama, Masataka Majima, Hidero Kitasato
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’accès au texte intégral de cet article nécessite un abonnement.
Bienvenue sur EM-consulte, la référence des professionnels de santé.
L’achat d’article à l’unité est indisponible à l’heure actuelle.
Déjà abonné à cette revue ?