In vitro cytotoxicity evaluation of some substituted isatin derivatives
作者:Kara L. Vine、Julie M. Locke、Marie Ranson、Stephen G. Pyne、John B. Bremner
DOI:10.1016/j.bmc.2006.10.035
日期:2007.1
A range of substituted 1H-indole-2,3-diones (isatins) were synthesized using standard procedures and their cytotoxicity evaluated against the human monocyte-like histiocytic lymphoma (U937) cell line in vitro. SAR studies identified C-5, C-6, and C-7 substitution greatly enhanced activity with some di- and tri-halogenated isatins giving IC50 values < 10 mu M. Of the 23 compounds tested, four were selected for further screening against a panel of five human cancer cell lines. These compounds, in general, showed greater selectivity toward leukemia and lymphoma cells over breast, prostate, and colorectal carcinoma cell lines. The most active compound, 5,6,7-tribromoisatin (2p), was found to be antiproliferative at low micromolar concentrations and also activated the effector caspases 3 and 7 in a dose-dependent manner. These results indicate that di- and tri-substituted isatins may be useful leads for anticancer drug development in the future. (c) 2006 Elsevier Ltd. All rights reserved.
[EN] SELECTIVELY DELIVERABLE ISATIN-BASED CYTOTOXIC AGENTS<br/>[FR] AGENTS CYTOTOXIQUES À BASE D'ISATINE POUVANT ÊTRE ADMINISTRÉS SÉLECTIVEMENT
申请人:UNIV WOLLONGONG
公开号:WO2008074078A1
公开(公告)日:2008-06-26
[EN] The invention relates to compounds comprising a cytotoxic isatin derivative conjugated to a cell targeting moiety via a spacer group. These conjugates allow the cytotoxic isatin derivaties to be targeted to particular cell and tissue types. The invention also relates to novel isatin derivatives, intermediates used in preparing the conjugates and method of using the conjugates. [FR] L'invention concerne des composés contenant un dérivé d'isatine cytotoxique conjugué à un groupe fonctionnel de ciblage cellulaire au moyen d'un groupe espaceur. Ces conjugués permettent de cibler les dérivés d'isatine cytotoxiques sur des types de cellules et de tissus particuliers. L'invention concerne également de nouveaux dérivés d'isatine, des intermédiaires employés dans la préparation des conjugués et un procédé d'utilisation des conjugués.
Synthesis and Antiproliferatory Activities Evaluation of Multi-Substituted Isatin Derivatives
作者:Ying Ding、Lianbo Zhao、Ying Fu、Lei Hao、Yupeng Fu、Yuan Yuan、Peng Yu、Yuou Teng
DOI:10.3390/molecules26010176
日期:——
reaction. The structures of these derivatives were confirmed by 1H-NMR, 13C-NMR, and HR-MS. Inhibition of proliferation activities of these derivatives against human leukemia cells (K562), human hepatocellularcarcinoma cells (HepG2) and human colon carcinoma cells (HT-29) were evaluated in vitro using the MTT assay. Among the series, compound 4l exhibited strong antiproliferatory activities against K562,