Synthesis and biological evaluation of 2,7-Dihydro-3H-dibenzo[de,h]cinnoline-3,7-dione derivatives, a novel group of anticancer agents active on a multidrug resistant cell line

2003 ◽  
Vol 11 (4) ◽  
pp. 561-572 ◽  
Author(s):  
Barbara Stefańska ◽  
Małgorzata Arciemiuk ◽  
Maria M Bontemps-Gracz ◽  
Maria Dzieduszycka ◽  
Agnieszka Kupiec ◽  
...  
1995 ◽  
Vol 38 (17) ◽  
pp. 3282-3286 ◽  
Author(s):  
Ippolito Antonini ◽  
Donatella Cola ◽  
Paolo Polucci ◽  
Maria Bontemps-Gracz ◽  
Edward Borowski ◽  
...  

2001 ◽  
Vol 73 (1) ◽  
pp. 57-69 ◽  
Author(s):  
VIVIAN M. RUMJANEK ◽  
GILMA S. TRINDADE ◽  
KAREN WAGNER-SOUZA ◽  
MICHELE C. MELETTI-DE-OLIVEIRA ◽  
LUIS F. MARQUES-SANTOS ◽  
...  

Multidrug resistance to chemotherapy is a major obstacle in the treatment of cancer patients. The best characterised mechanism responsible for multidrug resistance involves the expression of the MDR-1 gene product, P-glycoprotein. However, the resistance process is multifactorial. Studies of multidrug resistance mechanisms have relied on the analysis of cancer cell lines that have been selected and present cross-reactivity to a broad range of anticancer agents. This work characterises a multidrug resistant cell line, originally selected for resistance to the Vinca alkaloid vincristine and derived from the human erythroleukaemia cell K562. This cell line, named Lucena 1, overexpresses P-glycoprotein and have its resistance reversed by the chemosensitisers verapamil, trifluoperazine and cyclosporins A, D and G. Furthermore, we demonstrated that methylene blue was capable of partially reversing the resistance in this cell line. On the contrary, the use of 5-fluorouracil increased the resistance of Lucena 1. In addition to chemotherapics, Lucena 1 cells were resistant to ultraviolet A radiation and hydrogen peroxide and failed to mobilise intracellular calcium when thapsigargin was used. Changes in the cytoskeleton of this cell line were also observed.


2007 ◽  
Vol 19 (2) ◽  
pp. 203-211 ◽  
Author(s):  
Shicang Yu ◽  
Guijun Huang ◽  
Guisheng Qian ◽  
Yuying Li ◽  
Guoming Wu ◽  
...  

1999 ◽  
Vol 35 ◽  
pp. S197
Author(s):  
L. Rumi ◽  
M. Beviacqua ◽  
A. Sanchez ◽  
R. Bordenave ◽  
M.Lucero Gritti

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