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Anticancer Potency Studies of Coordination Driven Self‐Assembled Arene–Ru‐Based Metalla‐Bowls
Author(s) -
Mishra Anurag,
Jeong Yong Joon,
Jo JaeHo,
Kang Se Chan,
Lah Myoung Soo,
Chi KiWhan
Publication year - 2014
Publication title -
chembiochem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.05
H-Index - 126
eISSN - 1439-7633
pISSN - 1439-4227
DOI - 10.1002/cbic.201300688
Subject(s) - chemistry , cisplatin , stereochemistry , potency , ruthenium , cell growth , cancer cell , amide , ligand (biochemistry) , cancer , biochemistry , in vitro , biology , catalysis , genetics , receptor , chemotherapy
New tetranuclear cationic metalla‐bowls 5 – 7 with the general formula [Ru 4 ( p ‐cymene) 4 (N∩N) 2 (OO∩OO) 2 ] 4+ (N∩N=2,6‐bis( N ‐(4‐pyridyl carbamoyl)pyridine, OO∩OO=2,5‐dihydroxy‐1,4‐benzoquinonato ( 5 ), OO∩OO=5,8‐dioxydo‐1,4‐naphthaquinonato ( 6 ), OO∩OO=hoxonato ( 7 )) were prepared by the reaction of the respective dinuclear ruthenium complexes 2 – 4 with a bispyridine amide donor ligand 1 in methanol in the presence of AgO 3 SCF 3 .These new molecular metalla‐bowls were fully characterized by analytical techniques including elemental analysis as well as 1 H and 13 C NMR and HR‐ESI‐MS spectroscopy. The structure of metalla‐bowl 6 was determined from X‐ray crystal diffraction data. A UV/visible study was also carried out for the entire suite of new complexes. As with recent studies of similar arene–Ru complexes, the inhibition of cell growth by metalla‐bowls was established against SK‐hep‐1 (liver cancer), AGS (gastric cancer), and HCT‐15 (colorectal cancer) human cancer cell lines. Inhibition of cell growth by 6 was found to be considerably stronger against all cancer cell lines than the anticancer drugs, doxorubicin and cisplatin. In particular, in colorectal cancer cells, expression of the cancer suppressor genes APC and p53 was increased following exposure to 6 .