Chelate stabilization of a titanium(IV)-salan alkoxide by ligand exchange with 2,6-pyridinedicarboxylic acid (dipic) resulted in heptacoordinate complex 3 which is not redox-active, stable on silica gel and has increased aqueous stability. 3 is highly toxic in HeLa S3 and Hep G2 and has enhanced antitumor efficacy in a mouse cervical-cancer model.

This study aimed to investigate the effect of fullerenol combined with cisplatin on the proliferation of cervical cancer HeLa cells in order to provide new ideas and laboratory theoretical basis for the clinical treatment of cervical cancer. Cervical cancer cell line HeLa cells in vitro were treated with different concentrations of fullerenol, different concentrations of cisplatin, and differen...

AIM OF THE STUDY To evaluate the effect of combined use of rapamycin and cisplatin against Hela cells in vitro. MATERIAL AND METHODS The inhibitory effects of rapamycin and cisplatin, used alone or combination, on the proliferation of Hela cell were measured with MTT assay and median-effect plot analysis. RESULTS Combined use of rapamycin and cisplatin significantly improved the chemotherap...

previous studies have indicated that some species of cuscuta possess anticancer activity on various cell lines. due to the lack of detailed researches on the cytotoxic effects of cuscuta chinensis and cuscuta epithymum , the aim of the present study was to evaluate cytotoxic effects of chloroform and hydroalcoholic extracts of these plants on the human breast carcinoma cell line (mda-mb-468), h...

Three antioxidant isoflavonoids characterized as 4',7,8-trihydroxyisoflavone (1), 3',4',7-trihydroxyisoflavone (2) and 8-chloro-3',4',5,7-tetrahydroxyisoflavone (3) were isolated from the cultured broth of Streptomyces sp. OH-1049. Among them, 3 is a novel isoflavonoid possessing a chlorine atom in the molecule. In in vitro studies, these antibiotics were found to possess antioxidant activity w...

A new antibiotic sohbumycin, was isolated from the culture broth of Streptomyces sp. No. 82-85. It appeared to belong to the peptide lactone type of antibiotics from physico-chemical studies and has an empirical formula of C31H47N8O10Cl. In in vitro studies, the antibiotic was found to possess potent cytocidal activity against HeLa S3 cells and antimicrobial activities against Gram-positive bac...

Trichostatin A (TSA) as a HDAC inhibitor can regulate many biological properties including apoptosis and cell proliferation in various cancer cells. Here, we evaluated the effect of TSA on the growth and death of HeLa cervical cancer cells in relation to reactive oxygen species (ROS) and glutathione (GSH) levels. Dose- and time-dependent growth in...

0022-0728/$ see front matter 2009 Elsevier B.V. A doi:10.1016/j.jelechem.2009.01.002 * Corresponding author. Tel.: +1 512 471 3761; fax E-mail address: [email protected] (A.J. Bard) The viability and activity of HeLa cells were probed using scanning electrochemical microscopy (SECM). The feedback generated by HeLa cells during scanning depends on the electrochemical mediator. Living HeLa c...