A series of gold(I) complexes of the general composition [Au(naza)(PPh₃)] (1-8) was prepared and thoroughly characterized (e.g., electrospray ionization (ESI) mass spectrometry and multinuclear nuclear magnetic resonance (NMR) spectroscopy). The N1-deprotonated anions of 7-azaindole or its derivatives (naza) are coordinated to the metal centre through the N1 atom of their pyrrole ring, as prove...

The development of cisplatin drug resistance remains a chief concern in ovarian cancer chemotherapy. β-Elemene is a natural plant product with broad-spectrum antitumor activity towards many types of carcinomas. This study aimed to define the biological and therapeutic significance of β-elemene in chemoresistant ovarian cancer. In the present study, β-elemene significantly inhibited cell growth ...

The p53 tumor suppressor gene is critical in regulating cell proliferation following DNA damage, and disruption of p53 protein function by mutation has been implicated as a factor responsible for resistance of tumor cells to chemotherapeutic agents. Our studies were initiated by asking whether the translational product of the p53 gene is associated with cisplatin resistance in the 2780CP human ...

The cyclin-dependent kinase inhibitor p21 (p21) plays a crucial role in DNA repair, cell differentiation, and apoptosis through regulation of the cell cycle. A2780 human ovarian carcinoma cells, which are sensitive to cisplatin and paclitaxel, express wild-type p53 and exhibit a p53-mediated increase in p21 in response to the chemotherapeutic agents. Here, we demonstrate that phosphatidylinosit...

activation of ErbB3 and to sensitize platinum-resistant cells to subsequent chemotherapy. Materials and Methods: Cisplatin-sensitive (A2780) and -resistant (A2780cis) ovarian cancer cell lines were acquired from ATCC. Primary ascites cells were isolated from advanced stage ovarian cancer patients who had undergone prior therapy. Cells were propagated in vitro and cell viability assays were perf...

15-Deoxy-delta-12,14-prostaglandin-J(2) (15d-PGJ(2)), an arachidonic metabolite and a natural PPARγ agonist, is known to induce apoptosis in tumor cells. In this study, we investigated new therapeutic potentials of 15d-PGJ(2) by determining its anticancer effects in wild-type and doxorubicin-resistant ovarian carcinoma cells. Despite high expression of resistance-inducing genes like MDR1, Bcl2 ...

The cyclin-dependent kinase inhibitor p21 (p21) plays a crucial role in DNA repair, cell differentiation, and apoptosis through regulation of the cell cycle. A2780 human ovarian carcinoma cells, which are sensitive to cisplatin and paclitaxel, express wild-type p53 and exhibit a p53-mediated increase in p21 in response to the chemotherapeutic agents. Here, we demonstrate that phosphatidylinosit...

The synthesis by transmetallation and in-depth characterisation IR spectroscopy of five half-sandwich ruthenium osmium dithiocarbamato isonipecotamide glycoconjugate complexes are presented herein. evaluation their in vitro cytotoxicity the zinc precursors’ towards ovarian cancer (A2780 A2780cisR) normal prostate (PNT2) cells is reported. While compounds rather limited, some selectivity observed.

We examined the consequences of p73a overexpression on gene expression and cellular response to anticancer agents in clones from the human ovarian cancer cell line A2780. Using microarray filters, the expression of 588 genes in two clones overexpressing p73a (A2780/p73.4 and A2780/ p73.5) in comparison with empty vector-transfected cells was evaluated. There were clear differences in gene expre...

Chloroquine is an established antimalarial agent that has been recently tested in clinical trials for its anticancer activity. The favorable effect of chloroquine appears to be due to its ability to sensitize cancerous cells to chemotherapy, radiation therapy, and induce apoptosis. The present study investigated the interaction of zinc ions with chloroquine in a human ovarian cancer cell line (...